CN106687402A - Device for reeling up cables - Google Patents

Abstract

The invention relates to a device (10) for winding up a cable (11), comprising a reel (12) having a winding core (14) and a receptacle (16) for transmitting a rotational movement of the reel (12) to the cable (11), and comprising a base body (20), wherein the reel (12) is rotatably mounted relative to the base body, and comprising a spring (22) which is arranged in the winding core (14) and is connected to the reel (12) and to the base body (20) in a manner transmitting a spring force. The spring (22) is arranged between the receptacle (16) and the base body (20) in the axial direction (A) of the drum (12).

Description

Device for reeling up cables

technical field

The invention relates to a device for rolling up a cable, comprising a reel with a core and a housing for transmitting a rotational movement of the reel to the cable, and a base body, wherein the reel It is rotatably supported relative to the base, and includes a spring arranged in the winding core, which is connected with the roll and the base in a manner of transmitting elastic force.

Background technique

Portable electronic devices such as mobile phones, tablets or laptops are indispensable in everyday life. Especially mobile phones, which often need to be charged every day, so their charging cables are frequently used. Cables are collected for storage in drawers or storage containers where tangles are prone to occur. Some people wind up the charging cable manually, which often results in the cable breaking.

Many people also use headphones on a daily basis and often need to untangle the cables of the headphones before use. There are also many other cables that are used frequently and cause trouble every day.

Some cables come with an automatic (spring-operated) winder provided by the manufacturer. Such a winder is disclosed, for example, in US 2007/0295850 A1. These winders have a spring in the core (torque-loaded coil spring, also often referred to as a "power spring") that is tensioned when the cable is unwound so that it can be rewound when the spring relaxes. These cable wraps are constructed so that the user can easily replace the cable. Furthermore, in the area where the cable protrudes from the core, it is bent by 180° when rolled up, which can cause the cable to break.

Contents of the invention

In view of this, it is an object of the present invention to provide a device for reeling up a cable which, despite its complex structure, prevents the cable from breaking.

The solution of the present invention to achieve the above object is a device for rolling up the cable, comprising

- a reel with a core and a housing for transmitting the rotational movement of said reel to the cable,

- a base body, wherein the reel is rotatably supported relative to the base body, and

- a spring arranged in the winding core, which is connected with the winding drum and the base body in a manner of transmitting elastic force.

It is characterized in that the spring is arranged between the accommodating part and the base along the axial direction of the reel.

Since the spring is arranged between the receptacle and the base body in the axial direction of the reel, the space provided by the receptacle for proper deflection of the cable is greatly increased. That is to say, the cable of the insertion device is guided by the receptacle in such a way that the spring is arranged between the cable and the base body in the axial direction of the reel, ie the cable runs on the side of the spring facing away from the base body. In this way, the receptacle can extend in the region of the end face of the winding core facing away from the base body. Preferably, at least one entire end face of the winding core facing away from the base body can be used for the cable protection geometry of the receptacle. The receptacle is in particular integrated in the winding core, so that an inserted cable protrudes from the winding core. Thus, a particularly compact cable reel (winder) is provided by the device according to the invention, which protects the inserted cable during the reeling process.

Unlike the prior art, the receptacle is no longer arranged radially outside the spring, so that a relatively relaxed bending radius of the cable is achieved within the receptacle, so that the cable does not bend when protruding from the receptacle. Relaxed bending radii have so far been unsuitable, since the diameter of the drum increases by its amount if the bending radius is increased if the receptacle (relative to the axis of rotation of the drum) is arranged radially outside the spring double. In addition, in order to achieve a nearly cylindrical winding core with the receiving part arranged radially outside the spring, an outer delimiter is also arranged for the spring in an eccentric manner, thus providing space for the receiving part in the winding core . In the present invention, the accommodating part is arranged on the side of the spring away from the base body, so the spring can be arranged centrally. This enables a portable device for coiling up the cable in a spring-operated (automatic) manner. By arranging the receptacle on the side of the spring facing away from the base body, a cable winder structure is provided which enables the user to insert the cable himself into the device. The device is preferably designed such that the cable can be inserted (without damage) into the device and/or replaced by the user. Alternatively, however, the device can also be designed in such a way that the cable cannot be replaced (without damage) by the user.

In a typical application of the device, the base body generally does not rotate. However, the drum rotates relative to the base body. The basic body can be plate-shaped and/or pot-shaped, or have such regions. In particular, the base body extends approximately in the radial direction of the reel, ie approximately parallel to the end face of the reel facing the base body, so that the base body is particularly space-saving.

During the winding up of the cable, the cable is wound on the core of the reel which rotates relative to the base body. In particular, the central area of the cable is accommodated in the receptacle, so that the cable is drawn into the device on both sides of the central area and wound on the core.

The reel is rotatably mounted relative to the base body (ie for example in the base body or on the base body). The device preferably has a shaft or shaft. The shaft is connected to the base body in a torque-transmitting manner or is an integral part of the base body. The drum is preferably rotatably mounted on a shaft or shaft of the device.

The spring (that is, the part of the spring that deforms for energy storage when the reel rotates opposite to the winding rotation direction), especially the helical spring (that is, the helical spring that bears the torque load), is arranged on the core middle. The spring adopts an arrangement plan that is opposite to the winding rotation direction of the reel, that is, tensioned along the unwinding rotation direction of the reel. The spring is therefore relaxed in the direction of wind-up rotation, so that the drum rotates and winds up the cable. Said helical springs can also be called flat-coil bending springs, which are made of a metal strip wound helically in one plane (ie power springs). One end of the spring (especially the outer end of the helical spring) is connected to the reel, especially the winding core, in a manner of transmitting elastic force, while the other end of the spring (especially the inner end of the helical spring) It is connected with the base in the way of transmitting elastic force. Here, "connected in a manner of transmitting elastic force" means that the spring is connected to the base body and to the reel in such a way that the spring force of the spring can be applied to the base body and the reel. The spring is preferably connected to the base body in a manner of transmitting elastic force, specifically, the spring is connected to the above-mentioned shaft body in a manner of transmitting elastic force, for example hung or hooked in the shaft body. The drum can then be supported directly on the base body (for example a projection of the base body) or likewise on the shaft.

Specifically, the spring is connected to the base body and/or the reel in such a way that the spring force is transmitted, so that when the reel rotates further in the direction of rotation of the reel in the unloaded state of the spring, the spring can Torsion (support) relative to the base and/or roll. This prevents over-rotation of the spring (for example in the event a user attempts to rotate the spool further in the direction of wind-up rotation beyond the extent set by the spring). This enables the freewheel function, which is locked when the reel rotates counter to the winding direction of rotation.

The cable is in particular a cable for a charging device, earphone or earpiece. In the case of cables of this type, there is in particular a need for a spring-operated device which is as compact as possible for rolling up the cable.

The receptacle is in particular a (preferably groove-shaped) recess, so that a particularly simple receptacle is achieved. The recess is in particular open towards the side facing away from the base body. This makes it possible to transfer the rotational movement of the drum to the cable by means of a positive fit, ie to pull the cable. In particular, the receptacle extends transversely to the axial direction of the drum, in particular in a plane perpendicular to this axial extension. Since the cable protruding from the receptacle on both sides exerts resistance to the roll-up on both sides (for example because the cable is held by the user), the cable will not slip out of the receptacle during the roll-up process, but will be accommodated. The insert is driven in a form-fitting manner. Furthermore, the cable is held in the receptacle in a friction fit by twisting of the receptacle during rolling up. Usually, however, the cables are not clamped by means of receptacles.

Particularly preferably, the receptacle extends through the (kinematic and/or geometric) axis of rotation of the drum and/or the receptacle is constructed such that the cable passes through this axis of rotation. With this refinement, the same space is provided on both sides of the receptacle for the cable-protective deflection of the cable. The receptacle can also be (or be called) a composite receptacle, the parts of which are arranged, for example, outside the area of the axis of rotation of the drum.

The axial direction of the drum designates the direction of extension of the (moving) axis of rotation of the drum (regardless of the sign). Radial means any direction perpendicular to or away from the axis of rotation of the mandrel. That is, the radial direction of the drum extends perpendicular to the axial direction.

The receptacle preferably protrudes into the winding core. In this way, the cable inserted into the receptacle protrudes from the receptacle and the reel from the radially outer boundary (winding surface) of the winding core, so that a particularly space-saving arrangement of the receptacle is achieved. According to a preferred solution, the recess occupies less than 50%, preferably less than 40%, particularly preferably less than 33% of the axial length of the winding core (ie the axial extension of the winding core). Since the housing occupies only a small portion of the axial length of the mandrel, the space left for the spring inside the mandrel is increased. The inventor has surprisingly found that the cable can be wound neatly on the core even if the housing does not protrude at least into the center of the core, or even if the housing is only provided at the edge of the core . This can be achieved, for example, by means of manual guidance of the cable or the preferred guidance window described below. The present invention has also found that when the cable is rolled up by means of a spring, wherein the cable is not held by the user, by virtue of the dynamic movement of the cable, the cable is carried over the entire axial length of the winding core, not just in the accommodating The area of the piece is wound on the core.

In particular, the reel is rotatably held, eg rotatably fixed, on the base body. Preferably, the drum is held rotatably on the base body by means of a positive connection. Axial movement of the mandrel away from the main body is prevented by the positive connection.

The positive connection is preferably provided between the spring and the base body. This results in a particularly space-saving and stable arrangement. Furthermore, this minimizes the distance between the form fit and the base body, thereby increasing the stiffness. The increased stiffness allows for smooth running of the reel and increases the mechanical resistance of the device to external influences. Furthermore, with the preferred arrangement of the locking mechanism between the drum and the base body, the reliability of the locking mechanism is increased, since elastic deformations in the device are reduced. Furthermore, the part of the preferred shaft which is provided on the form-fitting side facing away from the base body and which connects the spring to the base body (see above) can be relatively thin in order to provide more space for the spring in the winding core, However, that part of the shaft body lying between the form fit and the main body can be relatively thick in order to absorb, without damage, possibly high forces acting on the drum from the outside. The form-fitting connection can be realized, for example, by means of a shoulder, a retaining flange or a circumferential bead of the shaft body, which can be provided on the side of the part of the drum that is located between the spring and the base body that faces away from the base body. Furthermore, an annular delimitation element can be provided on the shaft body and be connected (immovably) to the shaft body (for example glued, pressed, or also form-fitted). The annular delimitation in turn creates a form-fitting connection between the base body and the drum.

The device preferably has at least one guide window for guiding the cable to the winding core during the winding up of the cable. According to a preferred design of the present invention, the device has two guide windows for guiding the cable to the winding core during the cable rolling process, and the guide window has in particular a window for inserting the cable. Open your mouth. The two guide windows are in particular arranged on opposite (radially outer) sides of the drum. The guide window can be fixedly connected to the base body, or be an integral part of the base body. In particular, the guide window protrudes from the base body on the side facing the drum in the axial direction of the drum. By means of the opening, the cable can be inserted laterally (ie not in the longitudinal direction of the cable) into the guide window. The influence of an axially eccentrically arranged receptacle can be compensated by means of the guide window. The two guide windows preferably have an axial offset relative to each other. Particularly preferably, the sliding region of a guide window which is arranged furthest in the direction of cable unwinding is inclined towards the base body. This means that the sliding region does not extend axially, but points towards the base body. The torque applied by the spring to the drum and the base is supported on the cable by the sliding area so that the cable slides independently towards the base during winding up. Furthermore, the sliding region of the further guide window, which is arranged furthest in the direction of cable unwinding, is preferably inclined away from the base body. That is, the sliding area faces away from the base body, so that the cable independently slides away from the base body. The opening of the guide window is in particular arranged on the side of the guide window facing away from the base body so as to be easily accessible to the user. Preferably, rollers can also be used instead of the sliding area, so that the cable no longer slides through the sliding area, but is substantially attached to the roller, which rotates about the rolling axis during winding and uncoiling. The scrolling axis can be tilted like the sliding area described above. In particular, however, the rolling axis can also run parallel to the axis of rotation of the drum. The rollers of the two guide windows can have an inclination like the sliding regions, so that the rollers have tapering regions. At the end of the tapering region of the roller with the smaller diameter, the roller can have a flange. In this way, the tapered region does not press the cable to the housing (or cover), but to the flange, thereby further reducing the friction on the cable. Specifically, the two guide windows respectively have at least one scroll wheel.

The reel preferably has at least two retaining projections for retaining the cable on the core, wherein the retaining projections are transverse to the axial direction of the reel (in particular along the radially) protrude from the winding core, and at least two notches for insertion of cables are provided between said holding protrusions. The concept "transverse to a direction" means "a direction different from that direction". The retaining projection extends in particular in the radial direction of the mandrel. The two retaining projections can also be considered together as the double-interrupted front flange of the mandrel. The notches between the retaining protrusions can be regarded as free distances between the retaining protrusions. The recesses are in particular elongated recesses. The cables protruding from the receptacle can enter the interior of the reel (into the roll-up space of the reel) through the recess, and then lead to the guide window. The cable wound on the core is retained on the core and within the device by the retaining tabs. These two recesses can form a continuous recess by means of the receptacle.

Furthermore, the device, in particular the reel, preferably also has a, in particular circumferential, winding spacer on the side of the winding core facing the base body, ie on the side opposite the holding projection. Interfaceware. The turn-up space delimiter extends transversely to the axial direction, in particular radially. The roll-up space delimiter prevents, or at least reduces, the contact of the rolled-up portion of the cable with the base body, thereby preventing, or at least reducing, friction between the cable and the base body during rotation of the reel relative to the base body.

Preferably, in the inserted position of the reel, the accommodating element extends transversely (ie obliquely) to the connecting line of the two guide windows, in particular the two sliding areas. This makes it possible to unlock the locking mechanism, which can be unlocked against the winding direction of rotation, by pulling the ends of the cable protruding from the device, and to release the rotational movement of the reel in the direction of winding rotation.

Furthermore, the receptacle is preferably designed such that the (inserted) cable is accommodated (guided) (in the receptacle) in an S-shape or a mirrored S-shape. According to a preferred design solution of the present invention, the accommodating member has an S-shape or a mirrored S-shape extending direction. This results in the same S-shape or a mirrored S-shape of the cable in the receptacle, so that the cable is guided in the receptacle in such a way that it is as protected as possible. In particular, said extension runs through the (kinematic and/or geometric) axis of rotation of the mandrel. The two arches running in the shape of an S or a mirrored S-shape therefore have in particular the same (preferably as large as possible) arch radii.

Preferably, the receptacle is formed (in particular in the winding core) as a (in particular groove-shaped) recess with an S-shaped or mirrored S-shaped course. Furthermore, the receptacle is preferably formed as a recess (in particular with an S-shaped or mirrored S-shaped course), and the recess between the retaining projections is at least in the insertion position of the roll The middle leads to the guide window (especially the opening leading to the guide window). With this configuration, the cable can easily be pressed or inserted into the receptacle and the recess. Based on the S-shaped or mirrored S-shaped extension of the receptacle, the cable is also S-shaped or mirrored in the receptacle, so that the cables are arranged in the receptacle in such a way that the cable is protected as much as possible. to boot. Specifically, the S-shaped or mirror-imaged S-shaped extension of the accommodating part transitions tangentially to the winding surface of the winding core, thereby further reducing the load on the cable. Furthermore, the S-shaped or mirrored S-shaped course preferably runs through the (movement) axis of rotation of the mandrel. This achieves the same bending radius in both deflections of the cable in the receptacle. Due to the S-shaped course, the cable in the receptacle runs in the plug-in position, in particular transversely to the connecting line of the two guide windows. Furthermore, due to the S-shaped or mirrored S-shaped deflection of the cable, the cable is held in the device by friction with the receptacle even in the inserted position of the reel. In particular, the recess can be a part or extension of an S-shaped or mirrored S-shaped course, so that the cable can be inserted into the device particularly easily. The receptacle, in particular the recess of the receptacle, preferably transitions directly into the recess.

Furthermore, the receptacle preferably protrudes radially beyond the winding core. In other words, the diameter of the accommodating part is larger than the diameter of the winding core. As a result, more space is available for the receptacle for protective deflection of the cable than can be provided by the end face of the winding core (the side of the winding core facing away from the base body). This is particularly advantageous when the receptacle has an S-shaped or mirrored S-shaped course, since the curved outer region of the course protrudes beyond the winding core. If the receptacle is formed as a groove, the bottom of the groove also in particular protrudes beyond the winding core.

The device preferably has an insertion path for inserting a cable into the device, which (over at least 80% of its length, in particular over at least 90% of its length) is S-shaped or mirrored S-shaped and leads to The opening of the guide window. This results in an easily recognizable insertion path for the user, which considerably simplifies the insertion of the cable. That is, the insertion path passes through the receptacle, outside the receptacle through the recess between the retaining protrusions, and through the opening of the guide window. In this way, the user can insert the cable into the opening of the receiving part, the holding protrusion and the guide window along the insertion path, and then insert the device.

According to a preferred embodiment of the invention, the reel has at least one retaining element which is designed to be movable between an open position for inserting a cable through the recess and a closed position which at least partially closes the recess. The holding member thus rotates with the reel. In particular, said at least one retaining member closes the recess, at least in the inserted position of said drum (relative to the basic body). The recesses are preferably closed in a radially outer region by the at least one retaining element, wherein in particular one retaining element is provided for each recess. This prevents inserted cables from accidentally leaving the device through the recess (or insertion path) during proper operation of the device. After the at least one holding element is provided, it is not necessary to use a cover covering the reel on the side facing away from the base body, and the cable cannot be lost.

Preferably, said at least one retaining member is constructed to be elastically movable between said two positions. That is, the holding member is constructed to be movable by elastic deformation, so there is no need to employ a complicated and expensive mechanism for the holding member.

In particular, the at least one retaining member is an elastically deformable section of the retaining protrusion. The ratio of the (radial) length to the (axial) thickness of the retaining protrusion is usually relatively high, thus favoring the elastically deformable properties. In order to hold the cable in the device at the outer end of the recess, the at least two holding projections each have, in particular, an elastically deformable section. In this case, the elastically deformable section extends in particular from the radially outer end of the holding projection to the winding core.

Preferably, the elastic deflection of the at least one retaining member in a direction away from the base body (in particular in the axial direction of the drum) is limited by at least one stop element. In this way, the notch for inserting the cable is only released when said retaining member is elastically deformed towards the base body, in particular in the axial direction of the reel. However, at least in the inserted position of the drum, the deformation in the direction away from the base body is limited by the stop element, so that the notch is not released for the cable.

The at least one stop element is preferably immovably connected to the holding projection or is an integral part of the holding projection. In this way, the at least one holding member terminates on the side of the adjacent holding projection facing the base body. This results in a stop with extremely high mechanical stability.

The at least one stop element is preferably immovably connected to the main body, in particular to the guide window, or is an integral part thereof. This results in a particularly easy-to-manufacture stop.

Preferably, the at least two retaining projections reach the guide window in the insertion position of the roll. This prevents a user's misoperation during insertion of the cable.

According to a preferred configuration of the present invention, at least in the insertion position of the roll, the at least one holding member at least partially closes the opening of the guide window. A specific implementation manner may be: the guide window is arranged in close proximity to the holding protrusion (which has a substantially round or interrupted round outer contour). The opening of the guide window may be closed by at least one holding member and by the holding protrusion, thereby preventing the inserted cable from leaving the guide window. Thus, in the case of the retaining projections having a substantially rounded outer contour, the guide area remains closed as long as the recesses located between the retaining projections are not released by actuation of the at least one retaining member. This prevents the cable from leaving the guide window in the inserted position of the drum (relative to the base body).

As an alternative or in addition, the opening of the guide window can also be reversibly closed by means of other (in particular elastically openable) holding elements which are (in particular non-movable) connected to the base body, in particular Connect with the corresponding guide window, or be an integral part of it.

The reel preferably has a retaining flange which is designed in such a way that the cable inserted into the device runs on the side of the retaining flange facing the base body. During insertion into the device, the cable is inserted into the device around said retaining flange. This means that the insertion path for the cable insertion device extends around the outer contour of the holding flange. In particular, the cable runs on the side of the retaining flange facing the base body by virtue of the deformation recovery of the cable (or in the case of a user pulling the cable on both sides). This prevents the cable from leaving the device, in particular the receptacle. The holding flange is therefore preferably arranged in the region of the receptacle (the axis of rotation in particular intersects the holding flange).

Preferably, the device forms (in the coiling space of the device for the coiled cable) a ramp which rises in (ie tangential to) the direction of rotation of the coiling. Furthermore, as an addition or as an alternative, the ramp preferably also rises radially outwards. The ramp can be immovably connected to the base body, the cover and/or one of the guide windows, or it can be an integral part thereof. If the cable is wound on a core, each turn increases the diameter of the cable reel by twice the cable diameter. If the cable is long enough, the coil reaches the guide window radially. This can cause the coiled cable to become lodged between the coiled body and the base. With the ramp, the outermost cable track rises towards the ramp, is lifted axially by the ramp from the coil (either towards the base or away from the base) and is drawn to the core by means of the rotational movement of the drum. Thus, the cable forms another coil in addition to said coil. The maximum cable length that can be rolled up by means of the device is thus increased.

Preferably, the winding core has a wedge on the side facing away from the base body, the tip of which points in the direction of winding rotation (ie tangentially to the direction of roll-up rotation), wherein the slope thickens towards the base body. When the cable is rolled up, it protrudes from the receptacle and is wound on the winding core. In which the cable is pressed against the base body by the ramp. Thus, the portion of the cable which is pressed against the base body by the ramp is wound around the portion of the winding core which is arranged closer to the base body than the portion of the cable protruding from the receptacle on the opposite side. This enables better utilization of the axial length of the core.

Preferably, the device has a locking mechanism for locking the rotation of the mandrel in the winding direction of rotation, which can be unlocked, in particular, by means of a rotation of the mandrel counter to the winding direction of rotation. This enables a locking mechanism that independently locks the rotation of the drum after it has been rotated (during cable unwinding) against 180°, preferably less than 90°) after a rotation opposite to the winding direction of rotation (ie by means of a pulling cable) to unlock.

Such locking mechanisms, which can be unlocked by means of a rotation of the drum counter to the winding rotation direction, generally have guide rails arranged opposite each other in the main body and the drum, in which the locking bodies are displaceably arranged. The guide rail is in particular formed as a groove-shaped recess (preferably located at least partially in the roll space delimiter).

According to a preferred embodiment of the invention, the guide rail has, on the first side assigned to the base body or the reel:

- a wrap-around winding track in which the locking body can move when the reel rotates in the winding rotation direction,

- a wrap-around uncoiling track in which said locking body is displaceable when the reel rotates counter to the direction of rotation for winding up (in the direction of rotation for uncoiling),

- a connecting track in which the locking body can be moved from the winding track into the unwinding track when the reel rotates counter to the winding direction of rotation, and/or

- a locking projection, wherein the locking body is movable from the uncoiling track into the locking projection when the reel rotates in the direction of rotation for winding up, and from the locking projection when the reel rotates counter to the direction of rotation for winding up The protrusion moves into the roll-up track.

The locking projections are usually arranged between the rolling track and the unwinding track. That is, the guide rail can be divided into a plurality of functional sections on the first side according to the function of the respective section.

According to a further preferred embodiment, on a second side which is assigned to the reel or the base body and which is opposite to the first side, the guide rail has:

- A movement track which extends substantially radially (with respect to the axis of rotation of the drum) and in which movement track the locking body is guided.

The moving track realizes the movement of the locking body in the guide rail on the first side.

The uncoiling track can be arranged outside the rolling track. In the case where the travel path is arranged in the drum, when the drum rotates, the locking body also rotates about the axis of the locking body. This causes a centrifugal force to act on the locking body, which presses the locking body radially outwards. This enables a preferred centrifugal force coupling which prevents the reel (eg without a cable inserted) from spinning too fast.

The winding track is preferably arranged outside the uncoiling track. Therefore, when the reel rotates rapidly along the winding rotation direction, the centrifugal force no longer presses the locking body into the locking protrusion from the rolling track, but pushes it away from the locking protrusion, thus improving the direction of the locking body towards the lock. Prevent protrusion from moving in.

The winding track and the uncoiling track are generally staggered radially relative to each other. In this case, the connecting track can deviate from the radial direction in such a way that the locking body moves from the winding track into the unwinding track when the rotation direction of the reel is opposite to the winding rotation direction. The locking projection can be connected to the unwinding track by means of a guide track. In this case, the guide track can deviate from the radial direction in such a way that the locking body enters the locking projection from the unwinding track when the reel rotates in the winding direction of rotation. Furthermore, the locking projection can be connected to the roll-up rail by means of a guide rail. In this case, the guide rail can deviate from the radial direction in such a way that the locking body moves from the locking projection into the winding track when the reel rotates counter to the direction of rotation of the winding. Several elevations can be provided between the rails, which allow the locking body to enter the respective rail only in the desired direction of rotation. Furthermore, the start of the respective track can be arranged on a certain radius, so that the locking body independently slides into the desired track in the desired direction of rotation by remaining in the current radial position.

The locking body can be a sphere. As an alternative to a ball, the locking body can also be a lever, which is mounted in a pivot point, in particular in the base body, and engages on the side facing away from the pivot point into the guide rail of the drum. In this case, although no (radial) movement track can be provided, this solution requires a relatively large space because of the lever. Another alternative could be a U-shaped locking body, which is arranged in a U-shaped radial displacement path, in particular in the base body. The sides of the U-shape loop around the shaft of the device. From the U-shape protrudes a cylinder that slides in the guides of the roll.

However, the locking body is preferably a cylinder. The cylinder may be a hollow cylinder or a solid cylinder. Preferably, the locking mechanism has guide rails arranged oppositely in the base body and the reel, and the cylinder is movably arranged in these guide rails, wherein one end surface of the cylinder is set in the guide rail of the base body, the The other end surface of the cylinder is arranged in the guide rail of the reel. That is, one end face of the cylinder is directed towards the base body and the other end face is directed towards the reel. For locking the rotation of the drum in the direction of rotation for winding up, a positive fit is thus produced between the basic body and the guide rail of the drum via the cylindrical surface of the cylinder. For this type of locking mechanism, a sphere is usually used as described above, rather than a cylinder. However, if the reel is accessible and grasped by the user, the user may apply a relatively high torque to the reel, which may cause elastic deformation of the device, so that the ball may slip from the locking projection. to cancel the shape fit. The inventors have unexpectedly found that cylinders sliding in the two guide rails are also suitable for such a locking mechanism, since the frictional losses that would occur with the cylinder in the guide rails have proven to be insignificant. A cylinder requires much less space within the device than a lever. Furthermore, the cylinder has the advantage compared to a sphere that under practical conditions it does not slip out of the locking projection, but only tilts slightly. This is because a cylinder does not have a spherical surface, but a cylindrical surface.

Preferably, the diameter of the cylinder is at least 1 time, especially at least 1.3 times, especially at least 1.5 times the axial length of the cylinder. This minimizes the tilting of the cylinder as described above under the action of external forces in the direction of rotation of the winding up of the mandrel. That is to say, the resistance of the locking mechanism to external influences is increased. In addition, the sliding ability of the cylinder is improved.

The device preferably has a blocking mechanism, which can be switched by means of a push or a squeeze exerted by the user into a position blocking rotation of the drum at least in the winding direction of rotation and into a position allowing rotation of the drum. In particular, the rotation of the mandrel counter to the direction of rotation of the winding is also blocked in the blocking position. In this case, the blocking mechanism independently stops in the corresponding position (until the user performs a switchover). In this way, the user can lock the rotation of the reel independently of the locking mechanism, thereby preventing the locking mechanism from being accidentally unlocked. The rotation of the mandrel can also be blocked in an intermediate position of the locking mechanism by means of the blocking mechanism. Furthermore, the blocking mechanism may not block the rotation of the reel, but the cable may be unrolled by the user in the opposite direction to the direction of rotation of the winding.

According to a preferred design solution of the present invention, the reel has an axial arrangement (that is, extending transversely to the axial direction) of the reel for restricting the reel (especially opposite to the winding rotation direction). ) a mechanism for rotation, wherein the mechanism has a first partition protruding from the drum, in particular from the retaining projection, for blocking rotation, and the mechanism has a second partition that protrudes into the receptacle so that the The cable in the receptacle operates the mechanism under tensile load, thereby causing said first partition to retract towards the drum, in particular towards the retaining projection, and to release the drum's (in particular opposite to the direction of rotation of the coiling up) of) rotation. In this way, for example, the drum is locked independently of the locking mechanism. In the event that the mechanism locks a rotation counter to the direction of rotation of the winding, the locking mechanism is no longer unlocked in the direction opposite to the direction of rotation of the winding. For this purpose, in particular, the angle of rotation permitted by the mechanism against the direction of rotation of the winding is smaller than the angle of rotation required for unlocking the locking mechanism. Furthermore, the torque that can be applied to the shaft by the user against the direction of wind-up rotation (which further tensions the spring) is limited. The mechanism is preferably a lever, or includes such a lever, which is in particular mounted so as to be pivotable between the first subregion and the second subregion. Furthermore, the mechanism is preferably a slide or includes such a slide, which is in particular mounted displaceably between the first subregion and the second subregion. The mechanism can comprise a spring element which pretensions the mechanism (ie the lever or the slider) so that the first subregion of the mechanism releases from the reel, in particular from the Keep the tabs extended. In particular, by means of a deflection of the cable via the receptacle, ie by means of a change in direction of the longitudinal extension of the cable, the mechanism can be actuated by a tensile load of the cable. Said means in particular form at least a part of the retaining projection.

Preferably, the device has a cover on the side of the roll facing away from the base body. This makes it possible to cover at least one part of the roll facing away from the main body by means of the cover. In particular, the cover can be opened (by the user), for example folded over, removed or removed. With the cover open, cables can be inserted into the device, while with the cover closed the cables are prevented from being removed. The cover preferably closes the opening of the guide window and furthermore preferably (also) closes the recess located between the retaining projections, in particular (also) the receptacle.

The device preferably has a locking element, which can be switched by opening the cover to a position blocking the rotation of the mandrel, and by closing the cover to a position allowing the mandrel to rotate. This enables a simple safety mechanism to prevent rotation of the reel without the cable being inserted, for example during insertion of the cable.

Preferably, the cover is pivotably connected to the base body, wherein the deflection axis for the deflection of the cover is preferably arranged transversely, in particular perpendicularly, to the axial direction of the drum. Furthermore, the cover preferably has a stop body extending axially towards the base body and/or radially towards the axis of rotation, which snaps into the retaining projection or of the roll-up space delimiter when the cover is open. Locking notch. In this way, a reliable form fit is achieved both between the cover and the base body connected thereto, as well as between the cover and the reel. The deflection axis can be arranged on the side of the device that is assigned to the holding projection or the roll-up space delimiter, depending on whether the locking recess is provided in the holding projection or in the roll-up space delimiter to decide. The cover is preferably pivotably connected to the base body in the confines of one of the guide windows, so that a space-saving arrangement is achieved. The stop body can also be connected to the cover in a force-transmitting manner as a separate component.

If only a single locking recess is provided, into which the stop body engages in the inserted position of the mandrel, opening of the cover is prevented in other positions of the mandrel. The retaining projection or the roll-up space delimiter has, in particular, a plurality of, preferably evenly distributed, locking recesses. This enables the cover to be opened in several positions on the drum. The webs located between the locking recesses preferably have a shape that tapers toward the stop body. The stop body also preferably has a shape that tapers toward the locking recess. This makes it easier for the stop body to snap into the locking notch.

The locking element preferably has a stop body, which is connected (spring-loaded) to the base body and/or the cover in such a way that, when the cover is open, the stop body is in a position that blocks the rotation of the drum. in a position that allows the drum to rotate with the cover closed. This enables a simple safety mechanism to prevent rotation of the roll with the lid open. For this purpose, in the closed position of the cover, the cover and/or the base body can move the stop body into this position allowing rotation of the drum. The stop body can, for example, be connected to the base body in a spring-loaded manner. In the closed position of the cover, the stop body is pressed by the cover against the base body and thus pushed away from the drum. With the lid open, however, the spring-loaded stop body is pressed against the drum and blocks it.

The blocking means, the means for limiting the rotation of the drum and/or the locking element are preferably adapted to lock the rotation of the drum in a form-fit and/or press-fit manner.

According to a preferred embodiment of the present invention, the cover has a centrally arranged opening or a (in particular centrally arranged) viewing window. This makes it possible to detect an inserted cable when it at least partially slides out of the receptacle. This alternative comprising a centrally arranged opening also has the advantage that the cable, which at least partially slides out of the receptacle, does not drag on the cover. The opening is preferably round and/or coaxial with the axis of rotation of the drum. In particular, the window is formed from a transparent material. Furthermore, the cover itself can also be transparent.

The receptacle preferably protrudes at least partially into the opening. The structural height is reduced by means of this refinement, since the axial space required by the cover is not superimposed on the space required by the receptacle. Specifically, the diameter of the opening is larger than the diameter of the winding core, in particular larger than the diameter of the container. Therefore, the entire containing part is in the opening. With a further increase in the diameter of the opening, it is possible to deflect the cable in the opening when the cable emerges from the receptacle, so that the cable does not come into contact with the cover. Furthermore, in particular, the outer surface of the drum, in particular the outer surface of the receptacle, may be flush with the outer surface of the cover. This results in a particularly compact arrangement.

The device preferably also has a clothing fastening, such as a clip, for fastening the device to the user's clothing, making the device particularly suitable for earphone cables. The device preferably also has at least one cable holder for fixing the end of the cable to the device. The cable holder can be designed, for example, as a tapered slot for clamping the cable. The fastening part can also have a through-opening and a channel (whose width is in particular smaller than the diameter of the through-opening), wherein the channel connects the through-opening to the environment. In this way, cables can be introduced laterally into the through-hole through the channel. If the cable is pulled by the reel, the connector of the cable hangs, for example, on the edge of the through-opening, so that the cable is fixed. The cable holder can also be designed as a recess for the lateral insertion of the cable, wherein the recess is oriented such that when the cable is pulled by the reel, the cable is drawn towards the bottom of the recess and the connector of the cable hangs, for example, on the recess . The clothing holder and/or the cable holder may be arranged on the housing or the cover.

Furthermore, a system comprising the device of the invention and the cable is provided. Said cable is in particular inserted into a receptacle of the device. With this device, the cable can be rolled up by means of a spring in such a way that it is protected. The device can be constructed in such a way that the cable is fixedly integrated in the device, ie cannot be replaced (without damage) by the user. This can be achieved, for example, by means of a cover bonded to the base body. Furthermore, the device can also be designed in such a way that the cable can be replaced by the user.

Furthermore, a device for rolling up the cable is provided, comprising

- a reel with a core and a housing for transmitting the rotational movement of said reel to the cable, and

- A base body, wherein the reel is rotatably supported relative to the base body.

This device can also be combined with the above-mentioned preferred configurations. This device preferably also includes a spring (in particular located in the winding core), which is connected to the drum and to the base body in a spring-force-transmitting manner. Furthermore, the spring is preferably arranged between the receptacle and the base body in the axial direction of the drum. This achieves the advantages mentioned at the beginning of this article.

The following will disclose several devices realized by combining the devices mentioned in the previous paragraph with the preferred designs mentioned above, purely as examples.

A means for reeling up the cable is provided, comprising

- a reel with a core and a housing for transmitting the rotational movement of said reel to the cable, and

- A base body, wherein the reel is rotatably supported relative to the base body.

wherein the reel comprises at least two retaining projections for retaining the cable on the core, wherein the retaining projections protrude from the core on the side of the core facing away from the base body transversely to the axial direction of the reel , and two notches for insertion of cables are provided between said retaining protrusions, wherein said reel has at least one retaining member configured to be able to be in an open position for inserting cables through the notches and at least Movement between closed positions partially enclosing the notch. The device has in particular a spring, which is connected to the mandrel and the base body in a spring-force-transmitting manner and is preferably arranged in the core of the mandrel.

Furthermore, a device for rolling up the cable is provided, comprising

- a reel with a core and a housing for transmitting the rotational movement of said reel to the cable,

- a base body, wherein the reel is rotatably supported relative to the base body, and

- a spring (in particular in the core of the reel) connected to the reel and to the basic body in a spring-transmitting manner,

The device has a locking mechanism for locking the rotation of the drum in the direction of rotation for winding up, which can be unlocked by means of a rotation of the drum opposite to the direction of rotation for winding up, wherein the locking mechanism There are guide rails arranged oppositely in the base body and the reel, and a cylinder is movably arranged in these guide rails, wherein one end face of the cylinder is set in the guide rail of the base body, and the other ( Opposite) end faces are set in the guide rails of the reel.

Furthermore, a device for rolling up the cable is provided, comprising

- a reel with a core and a housing for transmitting the rotational movement of said reel to the cable,

- a base body, wherein the reel is rotatably supported relative to the base body, and

- a spring (in particular in the core of the reel) connected to the reel and to the basic body in a spring-transmitting manner,

wherein said reel has a mechanism for limiting rotation of the reel arranged transversely to the axial direction of the reel, wherein said mechanism has a first partition protruding for blocking rotation of the reel, and said mechanism There is a second section which protrudes into the housing so that a cable located in the housing operates the mechanism under a tensile load which in turn retracts the first section towards the drum and releases the drum's rotate.

Furthermore, a device for rolling up the cable is provided, comprising

- a reel with a core and a housing for transmitting the rotational movement of said reel to the cable,

- a base body, wherein the reel is rotatably supported relative to the base body, and

- a spring (in particular in the core of the reel) connected to the reel and to the basic body in a spring-transmitting manner,

The device has a cover on the side of the reel facing away from the base body, and the device has a locking element which can be switched by opening the cover to a position which blocks the rotation of the reel, and by means of the cover The closing switch of the section moves to a position that allows the drum to rotate.

Furthermore, a device for rolling up the cable is provided, comprising

- a reel with a core and a housing for transmitting the rotational movement of said reel to the cable, and

- a base body, wherein the reel is rotatably supported relative to the base body,

The device has a cover on the side of the roll facing away from the base body, and the cover has a central opening, wherein the receptacle preferably protrudes at least partially into the opening. The device has in particular a spring, which is connected to the mandrel and the base body in a spring-force-transmitting manner and is preferably arranged in the core of the mandrel.

For further advantageous embodiments of the invention, reference is made to the features stated in the remaining subclaims.

The various embodiments of the invention mentioned in this application can preferably be combined with one another, unless the individual cases are stated otherwise.

Description of drawings

The present invention will be described in detail in the following embodiments in conjunction with the corresponding drawings. in:

Fig. 1 shows a device for rolling up cables according to a preferred design of the present invention,

Figure 2 shows the device, wherein the winding core, holding tabs and springs are not shown,

Figure 3 shows the base body, containing part of the locking mechanism and the cylinder,

Figure 4 shows a wrap-around retaining protrusion comprising a cylinder,

Figure 5 shows the shaft body,

Figure 6 is a bottom view of the device,

Figure 7 is a side view of the device,

Figure 8 is a top view of the device with the insertion path depicted,

Figure 9 is a sectional view B-B of the device,

Figure 10 is a top view of the device with the cable inserted,

Figure 11 is an exploded view of the device,

Figure 12 shows the retaining projection including the stop element,

Figure 13 is a schematic view of the device including the mechanism for limiting the rotation of the spool in the locked position,

Figure 14 is a schematic view of the device comprising a mechanism for limiting the rotation of the spool in the unlocked position,

Figure 15 is a schematic view of the device in the locked position including other mechanisms for limiting the rotation of the spool,

Figure 16 is a schematic view of the device in the unlocked position including other mechanisms for limiting the rotation of the spool,

Figure 17 shows the device, including the lid closed,

Figure 18 shows the device, with the lid open,

Figure 19 shows the device, comprising a closed lid with an opening, and

Figure 20 shows the device with the lid open with the opening.

detailed description

1 to 11 show a device 10 (or individual parts thereof) for reversibly inserting and winding up a cable 11 according to a preferred embodiment of the invention. Refer to FIGS. 12 to 20 for other preferred designs of the present invention. Device 10 includes a spool 12 having a core 14 and a receptacle 16 . The housing 16 serves to transmit the rotational movement of the reel 12 to the cable 11 (see FIG. 10 ).

The device 10 comprises a base body 20 , relative to which the reel 12 is rotatably mounted.

Furthermore, the device includes a spring 22 which is arranged in the winding core 14 and is connected to the winding drum 12 and the main body 20 in a spring-force-transmitting manner. The spring 22 is arranged between the accommodating part 16 and the base body 20 along the axial direction A of the drum 12 . This can be seen most clearly in FIG. 9 , which shows the cross-section of FIG. 8 .

The spring 22 can be connected with the base body 20 in a manner of transmitting elastic force through the shaft body 21 . The reel 12 can be connected with the spring 22 in a manner of transmitting elastic force, specifically, the spring is hooked into the spring retaining section 23 of the reel 14 (refer to FIGS. 9 , 11 , 12 ). The spring 22 may be a helical spring subjected to a torque load. The spring 22 is oriented in such a way that it is tensioned opposite to the winding rotation direction 44 of the mandrel 12 , ie in the uncoiling direction of rotation of the mandrel 12 .

The reel 12 can also be connected to the base body 20 via the shaft body 21 and be rotatably supported on the shaft body 21 . However, the reel 12 can also be supported on a (hollow) shaft formed by the base body 20 , ie on a projection of the base body 20 through which the shaft body 21 passes. In this case, the reel 12 is rotatably held on the base body 20 by means of a positive connection 24 . In the example shown, this positive connection 24 is provided between the spring 22 and the base body 20 . For this purpose, the shaft body 21 can have, in particular, a circumferential bead 25 which holds the reel 12 on the base body 20 in a form-fitting manner (see FIGS. 2 , 5 and 9 ).

The device 10 may have two guide windows 26 provided on opposite (radial) sides for guiding the cable 11 towards the winding core 14 during the winding up of the cable 11 . The guide window 26 may have several openings 33 for inserting the cables 11 . In this case, the guide window 26 can be constructed as an integral part of the base body 20 as shown (in particular as shown in FIG. 11 ). In addition to the guide window 26, the base body 20 may be plate-shaped and/or tub-shaped as shown. The guide window 26 has a limit 27 (cf. FIG. 7 ) which prevents the thickened end of the cable 11 , eg a connector, from being pulled in. It is also possible for no limit 27 to be provided, so that the guide windows 26 each extend over approximately 180°. In this way, the opening 33 of the guide window 26 is largely closed by the retaining protrusion 28 .

Wherein, the reel 12 may comprise at least two retaining protrusions 28 for retaining the cable 11 on the reel 14 . Exactly two holding tabs 28 can be seen in the example shown, but these two holding tabs 28 can also each be subdivided into a plurality of holding tabs 28 . On the side of the winding core 14 facing away from the base body 20 , a holding projection 28 protrudes from the winding core 14 transversely to the axial direction A of the winding drum 12 . Furthermore, two recesses 32 into which the cable 11 can be inserted can be provided between the retaining projections 28 .

The accommodating part 16 can be configured to accommodate cables in an S-shape or a mirrored S-shape. For this purpose, the receptacle 16 can have an S-shaped or mirrored S-shaped course, in particular, as shown, a recess with an S-shaped (or mirrored S-shaped) course. (See in particular the container 16 framed in Figure 10). Furthermore, a notch 32 located between the retaining protrusions 28 leads to an opening 33 of the guide window 26 in the inserted position of the reel 12 (the position shown in the figures). Specifically, for inserting the cable 11 into the device 10 , the insertion path 30 may have an S-shape (or a mirrored S-shape as an alternative) extending (see FIG. 8 ). In this way, when the user inserts the cable 11, the operation is greatly simplified.

The reel 12 may have at least one retaining member 34 configured to be movable between an open position 38 for inserting the cable 11 through the notch 32 and a closed position 39 at least partially closing the notch 32 (see in particular FIG. 7 and 8). In the example shown, the device has two retaining elements 34 which each at least partially close a recess 32 . The holding member 34 shown is designed to be elastically movable between these two positions 38 , 39 in that at least one holding element 34 is an elastically deformable section of the holding projection 28 . Therein, the deformable section extends from the radially outer end of the retaining protrusion 28 to the winding core.

At least in the shown inserted position of the mandrel 12 , the elastic deflection of the at least one retaining member 34 in a direction away from the base body 20 , in particular in the axial direction A, is limited by a stop element 36 .

In the inserted position of the mandrel 12 , the two retaining members 34 at least partially close the opening 33 of the guide window 26 . The opening 33 is also partially closed by the adjoining retaining projection 28 . Between the holding member 34 and the adjacent holding projection 28 , the recess 32 can also extend as far as the opening 33 with a substantially reduced width in plan view. However, in the region of the retaining element 34 the width of the recess 32 is smaller than the diameter of the cable 11 which is usually rolled up with the device 10 . The gap between the guide window 26 and the holding protrusion 28 is also smaller than the diameter of the cable 11 that is usually rolled up with the device 10 .

The mandrel 12 may have a retaining flange 40 . In this case, the cable 11 of the insertion device 10 runs on the side of the retaining flange 40 facing the base body 20 (cf. FIG. 10 ).

The device can have a locking mechanism 42 (cf. FIGS. 3 and 4 ) for locking the rotation of the mandrel 12 in the winding direction of rotation 44 , which can Rotate to unlock. The locking mechanism 42 can also have guide rails 46, 47 (grooves) arranged opposite in the base body 20 and the reel 12, in which guide rails a locking body 48, in this case a cylinder, is provided in a displaceable manner. 48. One end face 49 of the cylinder 48 is arranged in the guide rail 46 of the base body 12 , while the other end face 49 of the cylinder 48 is arranged in the guide rail 47 of the reel 12 .

On the first side assigned to the basic body 20 in the present example, the guide rail 46 has a wrap-around roll-up track 52 (innermost track in FIG. Move in this orbit while rotating. This guide rail 46 also has a surrounding unwinding track 53 (the outermost track in FIG. 3 ), in which the locking body 48 can be moved when the reel 12 rotates counter to the winding direction of rotation 44 . The guide rail 46 also has a connecting track 54 in which the locking body 48 can be moved from the winding track 52 into the unwinding track 53 when the reel 12 rotates counter to the winding direction of rotation 44 . The guide rail 46 also has a locking projection 55 into which the locking body 48 can be moved from the unwinding track 53 when the reel 12 is rotated in the winding direction of rotation 44 , and when the reel 12 rotates counter to the winding direction. Direction 44 rotates from this locking projection into roll-up track 52 . The locking protrusion 55 is disposed between the rolling track 52 and the unwinding track 53 .

On a second side of the locking mechanism 42 which is assigned to the mandrel 12 and is opposite the first side, a guide rail 47 is provided (see FIG. 4 ). The guide rail 47 can be provided in an in particular circumferential winding space delimiter 56 of the mandrel 12 . The roll-up space delimiter 56 is arranged on the side of the core 14 facing the base body 20 and reduces or prevents the rolled-up cable 11 from coming into contact with the base body 20 , thereby reducing friction during the roll-up process. The guide rail 47 is a moving rail 47 which extends substantially in a radial direction R (with respect to the axis of rotation D of the reel 12 ). Radial R means any direction that is directed away from or towards the axis of rotation D (see FIG. 9 ) in a perpendicular manner. The moving track 47 realizes the movement of the locking body 48 in the guide rail 46 on the first side.

The sum of the depths of the guide rails 46 , 47 may be approximately equal to the axial length of the cylinder 48 . There is a gap between the guide rails 46, 47, so a gap between the cylinder 48 relative to the guide rails 46, 47 is generated. Furthermore, the sum of the depths can also be smaller than the axial length of the cylinder 48 , so that the cylinder 48 can move in the guide rails 46 , 47 substantially without play, or even be slightly compressed by the guide rails 46 , 47 .

The unwinding track 53 may be provided outside the winding track 52 as shown in the example. Since the locking body 48 rotates when the spool 12 rotates, a centrifugal force acts on the locking body 48 and presses it radially outward. At very high angular velocities, which can occur, for example, if the spring 22 relaxes without the cable 11 inserted, the locking body is pressed from the roll-up rail 52 into the locking projection 55 by centrifugal force. This achieves a centrifugal force coupling which prevents uncontrolled relaxation of the spring 22 .

As an alternative, the winding track 52 can also be arranged outside the unwinding track 53 . In this way, when the reel 12 rotates rapidly along the rolling rotation direction 44 , the locking body 48 will no longer be pressed into the locking projection 55 from the rolling track 52 by centrifugal force. Rather, the locking body 48 is pushed away from the locking projection 55 . With this configuration, the desired locking of the locking mechanism 42 is improved. This locking is triggered in particular when the locking body is located in the (now inner) unwinding track and the mandrel 12 is rotated in the winding direction of rotation 44 . Under the support of centrifugal force, the locking body 48 moves out from the unwinding track 53, and the locking body 48 moves into the locking protrusion 55 (which is now located outside the unwinding track 53).

As is known, the winding track 52 and the uncoiling track 53 are generally offset radially relative to each other. The connecting track 54 can be deviated from the radial direction R in such a way that the locking body 48 moves from the winding track 52 into the unwinding track 53 when the reel rotation direction is opposite to the winding rotation direction 44 . The locking projection 55 can be connected to the unwinding track 53 by means of a guide track 57 . In the example shown, the guide rail 57 is extremely short, which substantially only has an outer wall for guiding the locking body 48 . In this case, the guide track 57 can deviate from the radial direction R in such a way that the locking body 48 enters the locking projection 55 from the unwinding track 53 when the mandrel 12 rotates in the winding direction of rotation 44 . Furthermore, the locking projection 55 can be connected to the roll-up rail 52 by means of a guide rail 58 . In this case, the run-off track 58 can be deviated from the radial direction R in such a way that the locking body 48 moves from the locking projection 55 into the rolling track 52 when the drum rotates counter to the winding direction of rotation 44 . Between the rails 52 , 53 , 54 , 57 , 58 there may be provided (for example slope-shaped or wedge-shaped) raised parts (not shown), which allow the locking body 48 to enter the corresponding rail 52 only in the desired direction of rotation. , 53, 54, 57, 58. Furthermore, the beginnings of the tracks 52, 53, 54, 57, 58 can be arranged on a radius such that the locking body 48 independently slides into the desired track by remaining in the current radial position in the desired direction of rotation ( See Figure 3).

A form-fitting connection 24 , which rotationally holds the reel 12 on the base body 20 in a form-fitting manner, is provided between the spring 22 and the base body 20 , so that a rigid design of the locking mechanism 42 is achieved with as little play as possible. The shaft body 21 is connected to the base body 12 in such a way that a torque can be transmitted from the shaft body 21 to the base body 12 . In the example shown, the shaft body 21 is immovably connected to the base body 20 . The specific way to realize this solution is that the shaft body 21 shown in FIG. 5 has a slotted seat 60 . The seat slit 61 dividing the seat 60 into two halves is in the same plane as the spring retaining slit 62 into which the spring 22 hooks. In this case, the support slot 61 can extend as far as the surrounding bead 25 and thus divides the support surface 63 for (sliding) support of the drum 12 .

Alternatively, the shaft body 21 can also be connected integrally with the base body 12 , ie formed as an integral component of the base body 12 , for example.

The device 10 can also have a blocking mechanism 64 that can be switched by means of a push or squeeze applied by the user to a position 78 that blocks rotation of the drum 12 at least in the winding direction of rotation 44 and to a position that allows the drum 12 Rotate to position 79. For this purpose, the blocking mechanism 64 shown in FIGS. 3 , 4 , 6 and 7 has a slide 65 , which is shown on the underside of the device 10 as shown in FIG. 4 . The slider 65 is connected to the blocking flange 66 in a fixed or integral manner. By means of the blocking flange 66 a form-fit connection can be produced with a toothing 67 arranged in the coil space delimiter 56 .

The device 10 can have a ramp 68 which is immovably connected to the base body 20 or integrally formed therewith (see FIG. 7 ). The mandrel may also have wedges 69 (see Figure 12). The ramp 68 and the wedge 69 guide the cable 11 during the rolling up process.

FIG. 12 shows an alternative mandrel 12 (or a portion of mandrel 12 ) in a manner that compares with the previous figures. As shown, the drum 12 itself has two stop elements 37 . These stop elements are an integral part of the retaining projection 28 . The retaining component 34 terminates on the side of the adjoining retaining projection 28 and its stop element 37 facing the base body 12 . That is, the retaining member 34 overlaps the stop element 37 . This achieves a stop with extremely high mechanical stability, which can also be combined with the stop element 36 .

13 and 14 show a mechanism 70 integrated in the mandrel 12 for limiting the rotation of the mandrel 12 . The illustrated mechanism limits rotation of the mandrel 12 against the direction of wind up rotation 44 . In this case, the permissible rotation of the drum 12 against the winding direction of rotation 44 is smaller than at least the rotation required to unlock the locking mechanism 42 . Wherein, the rotation required at least for unlocking is: to make the locking body 48 move into the rolling track 52 to a certain extent, thereby leaving the locking body in the rolling track 52 when the reel 12 rotates along the rolling rotation direction 44 subsequently. rotation.

The mechanism 70 is arranged transversely to the axial direction A of the mandrel 12 . The means can adjoin one of the retaining projections 28 and extend on that side of the retaining projection facing the base body 20 . The mechanism 70 may be constructed as (or include) a lever 70 a and has a first section 72 protruding from the retaining tab 28 to block the rotation of the spool 12 . The mechanism 70 may also have a second section 74 extending into the receptacle 16 . The lever 70a is deflectably supported on the shank (not shown) of the screw 76 . Instead of the shaft of the screw 76 , any other support for the lever 70 a can also be provided. The lever 70 a can be supported by means of an end stop 77 . A spring element (not shown), which can be an integral part of the lever 70 a for example, pretensions the lever 70 a such that its first section 72 protrudes from the retaining projection 28 . It is also possible to provide a dedicated mechanism 70 for each retaining projection 28 .

According to FIGS. 15 and 16 , the mechanism 70 can also be constructed as a slide 70 b instead of a lever 70 a , or include this slide. Sliders 70b are built movably in the reel 12 (for example along its longitudinal direction), see FIGS. 15 and 16 . In other respects, the function of the slider is equivalent to that of the lever 70a. The slide 70 b extends between the receptacle 16 and the spring 22 and in particular forms at least a part of the receptacle 16 .

According to FIGS. 17 and 18 , the device 10 can have a cover 80 on the side of the roll 12 facing away from the base body 20 . Furthermore, the device 10 can have a locking element 82 which can be switched by opening the cover 80 to a position 78 blocking the rotation of the drum 12 and by closing the cover 80 to a position allowing rotation of the drum 12 79. The locking element 82 can form the stop body 82 (or include this stop body) and can, for example, be fixedly connected to the cover 80 (ie, for example, be formed in one piece). The stop body 82 can snap into the locking notch 81 of the holding protrusion 28 (or one of the plurality of locking notches 81 of the holding protrusion 28 ).

As shown in FIGS. 19 and 20 , the stop body 82 can also snap into a locking notch 81 (in particular one of the plurality of locking notches 81 ) located in the rolling space delimiting member 56 . With the (reverse) tapered shape of the stop body 82 and/or the spacer 83 located between the locking recesses 81 as shown in FIGS. notch 81 .

As also shown in FIGS. 19 and 20 , the cover portion 80 may have a centrally disposed opening 88 . The reel 12 (specifically, the accommodating part 16 ) can extend into the opening 88 . In addition, the outer surface 89 a of the reel 12 , especially the receiving part 16 , may be flush with the outer surface 89 b of the cover part 80 .

The configuration shown in FIGS. 19 and 20 does not have the retaining component 34 and the stop elements 36 , 37 , since the inserted cable 11 is secured in the device 10 by means of the cover 80 .

In the embodiment shown in FIGS. 17 and 18 it is also possible to dispense with retaining elements and stop elements. However, in the embodiments shown in FIGS. 19 and 20 , retaining components 34 and in particular stop elements 36 and/or 37 can also be provided.

Furthermore, it is also possible to combine the locking element 82 (see FIGS. 17 to 20 ) with the mechanism 70 (see FIGS. 13 to 16 ).

The manner in which device 10 is assembled can be seen most clearly in FIG. 11 . Firstly, the blocking mechanism 64 is connected to the base body 20 , for example, by clamping the slide 65 of the blocking mechanism with the support of the blocking flange 66 . The locking body 48 can then be inserted into the guide rail 46 (see FIG. 3 ).

The roll-up space delimiter 56 of the reel 12 is then placed on the base body 20 and the shaft body 21 is inserted. Specifically, the spring holding slit 62 is expanded so that the support slit 61 is narrowed. This makes it possible to insert the support 60 into the base body 20 and to unfold the support 60 by means of grub screws 84 (see FIG. 6 ). In this way a device 10 as shown in FIG. 2 is obtained. Alternatively, the reel 12 can also be held on the base body 20 in a form-fitting manner by means of a clip (not shown) provided on the shaft body 21 .

The spring 22 is then hooked into the spring retaining section 23 (see FIG. 12 ) and inserted into the winding core 14 . The spring 22 can then be hooked into the spring retaining slot 62 of the shaft body 21 and the upper part of the reel 12 (the core 14 including the retaining lug 28 ) can be placed on the winding space delimiter 56 . In this state, the mechanism 70 can still be inserted into the spool 12 . It is then only necessary to connect the upper part of the mandrel 12 to the roll space delimiter 56 by means of two screws 76 . To this end, a number of nuts (not shown) may be provided in the nut holder 86 (see FIG. 4 ). As an alternative to the screws 76 , of course, retaining clips (not shown) can also be provided for connecting the reel 12 (eg for connecting the upper part of the reel 12 to the roll-up space delimiter 56 ).

Before delivery of the device 10 , the spring 22 can also be tensioned opposite to the rolling up rotation direction 44 . A rotation of the mandrel 12 in a winding direction of rotation 44 is prevented by a locking mechanism 42 . Furthermore, rotation of the mandrel 12 can also be prevented by the mechanism 70 , the locking element 82 of the cover 80 and/or the blocking mechanism 64 .

The cylinder 48 is able to absorb relatively large torques acting on the mandrel 12 in the winding up rotation direction 44, so that even in the case of an elastic expansion of the gap between the base body 20 and the retaining limit 56, the cylinder 48 The cylindrical surface 50 does not slide out from the guide rails (guide grooves) 46, 47, but only tilts. The greater the ratio of the diameter of the cylinder 48 to its axial length, the greater the aforementioned stability.

The working principle of the device 10 will be described below in conjunction with a preferred design of the present invention:

The cable 11 is inserted into the device 10 along the insertion path 30 (see FIG. 8 ). For this purpose, the approximate center of the cable 11 is first determined. The cable 11 is then pressed under the retaining flange 40 or hooked into it. The cable 11 is then inserted or slipped onto the receptacle 16 on both sides of the retaining flange 40 through the recesses 32 adjoining the receptacle. In order to put the cable 11 through the opening 33 into the guide window 26, the elastic holding member 34 can be pressed against the base body 20 (see FIG. The opening 33 of the outer and cable guide area 26 is released. The cable 11 can then be introduced into the guide window 26 . Alternatively, it is also possible simply to pull the end of the cable 11 towards the base body 20 , so that the cable 11 presses the corresponding retaining element 34 against the base body 20 . With the above steps, the cable 11 is inserted into the device 10 (see FIG. 10). In this way, the cables run on the side of the holding projection 28 and the holding flange 40 facing the base body 20 as well as in the receptacle 16 and the guide window 26 . In the configuration of the device shown in FIGS. 17 to 20 , the cover 80 can then also be closed, which can be held in the closed position, for example, by means of at least one retaining clip 87 (cf. FIGS. 19 to 20 ). By closing the cover 80 , the stop body 82 moves out of the locking notch 81 , so the locking member 82 no longer blocks the rotation of the reel 12 .

Overall a system 10 is realized (cf. FIG. 10 ), comprising a device 10 and a cable 11 .

In the position shown in FIG. 10 , ie in the inserted position of the reel 12 relative to the base body 20 , the S-shaped extension of the holding member 34 , holding flange 40 and receptacle 16 prevents the device 10 from exiting through the insertion path 20 . Additionally or alternatively, this can be prevented by a cover 80 (see Fig. 17 or 19).

The retaining member 34 prevents the cable 11 from leaving the device 10 , for example if the end of the cable 11 is pulled in an axial direction A facing away from the base body 20 . Specifically, the elastic deformation of the retaining member 34 in this axial direction A is limited or prevented by means of the stop element 36 or 37 (see FIG. 12 ). But in the event of a very high traction force on the cable 11, the retaining member 34 will move away due to the increased elastic deformation on the retaining member 34 and release the cable 11, thereby preventing the cable 11 from being damaged.

The S-shaped holder 16 prevents the cable 11 from leaving the device 10 by holding the cable 11 in the holder 16 in a friction fit by virtue of the double reversed bending of the cable 11 without being clamped in the holder. Item 16.

The cable 10 extends substantially straight between the two arches of said S-shaped housing, so that the cable 11 is retained in the device 10 by the retaining flange 40 (cf. FIG. 10 ). The cable 11 for the device 10 is generally much thicker than the cable 11 shown in Figure 10 (typically twice as thick). This leads to an improved function of the retaining flange 40 , since the inserted cable 11 needs to be bent around the retaining flange 40 in the shape of the insertion path 30 (see FIG. 8 ) in order not to leave the device 10 again. In this case, the length of the retaining flange 40 perpendicular to the insertion path 30 is in particular equal to the width of the receptacle 16 , so that the function of the retaining flange 40 is further improved. The holding flange 40 can, for example, reach up to the position 41 (indicated by the tip of the arrow in FIGS. 8 and 10 ) or beyond it. Therefore, compared to the solution shown in FIGS. 8 and 10 , it may be necessary to expand (i.e. widen) the recess (groove) of the receptacle 16 in the area of the retaining flange 40 to a certain extent, so that the cable 11 can surround the retaining flange 40. The flange 40 passes through.

To wind up the cable 11 (only a very small central section is shown in FIG. 10 ), the blocking mechanism 64 (if present) is first unlocked. To this end, the slider 65 (cf. FIG. 6 ) of the blocking mechanism 64 is pushed outwards. This dislodges the blocking flange 66 (see FIG. 3 ) from the tooth train 67 (see FIG. 4 ).

The cable 11 is then pulled. In the case of the device 10 having a mechanism 70 in the form of a lever 70a as shown in FIGS. The protrusion 28 disappears and the rotation of the reel 12 counter to the winding direction of rotation 44 is released. Where the mechanism 70 includes a slider 70b ( FIGS. 15 and 16 ), the slider 70b is moved inwardly towards a spring not shown by traction, causing its first section 72 to disappear in the retaining protrusion 28 and release the roll. The rotation of the drum 12 is opposite to the winding rotation direction 44 .

The two ends of the cable 11 are pulled, so that the locking body 48 moves from the moving track 47 through the lead-out track 58 into the roll-up track 52 . If the cable 11 is subsequently unwound or its end is moved towards the device 10 , the spring 22 independently winds up the cable 11 in that the spring relaxes and the reel 12 rotates in the winding up rotation direction 44 .

During the winding process, the cable 11 is gently deflected with as large a bending radius as possible (which is close to half the diameter of the winding core) by means of the S-shaped spacer 16 , thereby preventing the cable from breaking. Particularly preferably, in the inserted position, the S-shaped or mirrored S-shaped receptacle 16 forms an angle with respect to the guide window 26, so that when the locking mechanism 42 is unlocked, the cable 11 is located in the receptacle 16 The portion in will not be straightened against its bend in the S-shape or mirrored S-shape. This prevents multiple bending to the radius of the receptacle.

The winding operation continues until the cable 11 is completely rolled up, or until the slider 65 of the blocking mechanism 64 is moved towards the center of the device 10 and its blocking flange 65 snaps into the tooth train 67 . The blocking mechanism 64 has stops in its two end positions so that it stays securely in the respective positions.

Furthermore, the coiling of the cable 11 can be terminated by pulling the end of the cable 11 a short distance against the spring force of the spring 22 so that the drum 12 rotates counter to the coiling direction of rotation 44 . This causes the locking body 48 to move in the winding track 52 counter to the winding direction of rotation 44 , via the unwinding cam 90 to a radius (larger radius) approaching the unwinding track 53 and thus into the connecting track 54 . During the movement of the locking body 48 in the uncoiling track 53 opposite to the winding direction of rotation 44 , it is moved by the locking cam 92 to a radius (smaller radius) approaching the winding track 52 . If the user releases the cable 11 at this time, the locking body 48 moves along the winding rotation direction 48 and enters the locking protrusion 55 through the guide rail 57 . This achieves the desired length of the cable 11 outside the device 10 . In order to pull out the cable 11 to any length or completely, it is only necessary to pull the cable 11 so that the locking body 48 moves into the roll-up track 52 (smaller radius) by the unlocking cam 94, so that the locking mechanism 42 also Go through the stages described in this paragraph.

Even if the rotation of the reel 12 is blocked by the locking mechanism 42 , the user can additionally block the rotation by means of the blocking mechanism 64 . This prevents accidental unlocking of the locking mechanism 42 .

The base body 20 is supported on the cable 11 via the guide window 26 as soon as a traction force is applied to the cable 11 by the spring 22 during winding or uncoiling. In order to be able to distribute the cable 11 to a specific axial area of the winding core 14 even if the guide window 26 is as wide as possible, at least one guide window 26 has an inclined sliding area 96 (cf. FIG. 7 ). The inclined sliding region 96 is arranged as far as possible in the guide window 26 in the winding direction of rotation 44 . The inclined sliding area 96 is inclined towards said base body, so that the cable 11 thereby slides towards the base body 20 when the base body 20 is supported by the inclined sliding area 96 . The second guiding window 26 may have another sliding area (not shown) inclined away from the base 20 , so that the cable 11 slides on this area away from the base 20 . However, the accommodating part 16 is arranged on the side of the winding core 14 facing away from the base body 20 , so the oppositely arranged second guide window 26 can also form an axially extending sliding area 98 (see FIG. 7 ).

During the coiling of the cable 11, in addition or as an alternative to the inclined sliding area, the wedge 69 can press the cable 11 towards the base body 20, so that the axial deflection of the two sides of the cable 11 causes a torque to act on the device 10, which allows the device 10 to be tilted relative to the cable 11, so as to roll the cable 11 into separate coils axially offset from each other.

If the cable 11 is wound on the core 14 , the diameter of the coil (not shown) of the cable 11 increases. In the case of a sufficiently long cable 11 , the coil reaches the guide window 26 in the radial direction R. With the help of ramps 68 (see FIG. 7 for one of them), the outermost cable track of the coil rises towards the ramp 68, is lifted by the ramp 68 from the coil in the axial direction A away from the base body 20, and is lifted by the rotation of the drum 12 The motion is drawn to the winding core 14 . Thus, the cable 11 forms another coil in addition to said coil. The length of the cable 11 that can be rolled up through the device 10 is thus increased by means of the ramp 68 . The device 10 can also have at least one reverse slope (not shown), which presses the coil from the end of the winding core 14 farthest from the base 20 to the base 20 along the axial direction A.

If the device 10 has a cover 80 ( FIGS. 17 to 20 ) and the cover 80 is constructed with an opening 88 , even the cable 11 which tends to slide out of the receptacle 16 does not drag on the cover 88 .

To remove the cable 11, the cable 11 is unrolled to its maximum length. The retaining member 34 is then pressed against the base body 20 and the cable 11 is removed.

After the tension in the cable 11 is removed, the spring-loaded lever 70a is deflected counterclockwise, or the spring-loaded slider 70b is moved out of the retaining protrusion 28, so that its first section 72 turns the reel 12 against the winding direction. Rotation in direction of rotation 44 is blocked.

Additionally or alternatively, the cover 80 can also be opened, so that the locking element 82 automatically locks the rotation of the mandrel 12 .

All in all, it can be determined that with the device 10 an easy-to-handle and efficient device 10 for winding up cables 11 is realized.

Component Symbol Table

10 devices

11 cables

12 rolls

14 cores

16 Holders

20 substrates

21 shaft

22 springs

23 Spring retaining section

24 form fit connection

25 uplift

26 Guide window

27 boundaries

28 Hold tab

30 Insert path

32 Notches to hold tabs

33 Opening for guide window

34 holding member

36 Stop element for guide window

37 Stop element for roll

38 open position

39 closed position

40 retaining flange

41 position

42 Locking mechanism

44 Roll up rotation direction

46 rails

47 guide rail, moving track

48 Locking body, cylinder

49 end faces

50 cylinders

52 roll up track

53 unwind track

54 Connecting track

55 Locking projection

56 roll up space delimiter

57 Import track

58 Export tracks

60 supports

61 Seat slit

62 spring stay slit

63 bearing surface

64 blocking mechanism

65 sliders

66 Blocking flange

67 tooth system

68 slopes

69 Wedge

70 institutions

70a leverage

70b slider

72 First Division

74 Second Division

76 screws

77 End stop

78 Position of blocking rotation

79 Rotational position allowed

80 cover

81 Locking notch

82 Locking part, stop body

83 Spacers

84 headless screw

86 Nut holder

87 retaining clip

88 openings

89a Outside surface of roll

89b External surface of cover

90 unwinding cam

92 Locking cam

94 unlock cam

96 sloped sliding areas

98 Axially extended sliding area

100 systems

A axial

R Radial

L Axial length of core

Claims (15)

1. one kind is used for the device (10) for rolling on cable (11), comprising

Reel (12), it has core (14) and the accommodating member for the rotary motion of reel (12) to be transferred to cable (11) (16),

Matrix (20), wherein the reel (12) the rotary supporting of the relative matrix, and

Spring (22) in the core (14), its to transmit elastic force in the way of with the reel (12) and described matrix (20) connect,

Characterized in that,

The spring (22) is arranged between accommodating member (16) and matrix (20) along the axial direction (A) of reel (12).

2. device (10) according to claim 1, wherein the accommodating member (16) is suitable to the S-shaped after S-shaped or mirror image Mode cable is housed.

3. device (10) according to any one of the claims, wherein the reel (12) is used for including at least two The holding protuberance (28) cable (11) being maintained in core (14), wherein holding protuberance (28) is in the core (14) the axial direction (A) on the side of matrix (20) transverse to reel (12) is prominent from core (14), and, in the guarantor Hold the recess (32) that two current supply cable (11) insertions are provided between protuberance (28).

4. device (10) according to claim 3, wherein

Described device (10) is used to guide cable (11) into core (14) lead in the turn-up process of cable (11) with two Draw window (26),

The accommodating member (16) is configured to recess, and

At least in the on position of the reel (12), the recess (32) between holding protuberance (28) leads to institute State guiding window (26).

5. device (10) according to any one of claim 3 or 4, wherein the reel (12) keeps with least one Component (34), it is configured to can be for inserting the open position (38) of cable (11) by recess (32) and at least partly will Move between the closed position (39) of recess (32) closing.

6. device (10) according to claim 5, wherein at least one holding member (34) be configured to can be in institute State two positions (38,39) between elastic movement, particularly, at least one holding member (34) be it is described keep project The section of the elastically deformable in portion (28).

7. device (10) according to any one of the claims, wherein the reel (12) is with holding flange (40), its such structure so that the cable (11) of insertion described device (10) is in holding flange (40) towards matrix (20) extend on side.

8. device (10) according to any one of the claims, wherein described device (10) are with for by the volume The lockable mechanism (42) of the rotary locking of direction of rotation (44) is rolled on the edge of cylinder (12), and it being capable of being in reverse to by reel (12) The rotation unblock of direction of rotation (44) is rolled, wherein the lockable mechanism (42) is with relative with reel (12) in matrix (20) Arrangement guide rail (46,47), cylinder (48) is provided with a movable manner in these guide rails, wherein the cylinder (48) An end face (49) in the guide rail (46) of described matrix (12), and, the other end (49) of the cylinder (48) In the guide rail (47) of the reel (12).

9. device (10) according to any one of the claims, wherein described device have plugging mechanism (64), its The promotion or extruding that can apply by user switches to one and at least edge of the reel (12) is rolled into direction of rotation (44) position (78) of rotation obstruction, and the position (79) for switching to permission reel (12) rotation.

10. device (10) according to any one of the claims, wherein the reel (12) is with transverse to reel (12) mechanism (70) for limiting the rotation of reel (12) of axial direction (A) arrangement, wherein the mechanism (70) is with first Subregion (72), it is from reel (12), particularly from the holding as any one of claim 3 to 6 by rotation obstruction Protuberance (28) stretches out, and, with the second subregion (74), it stretches into the accommodating member (16) to the mechanism (70) so that set Cable (11) in accommodating member (16) manipulates under tensile load the mechanism (70), and then causes the first subregion (72) court Reel, particularly withdraws towards holding protuberance (28), and discharges the rotation of reel (12).

11. devices (10) according to any one of the claims, the wherein back of the body of the described device (10) in reel (12) There is cap (80) on the side of matrix (20).

12. devices (10) according to claim 11, with locking piece (82), it can be by for wherein described device (10) The opening of the cap (80) switches to the position (78) of a rotation obstruction by reel (12), and by cap (80) Closing switches to the position (79) of permission reel (12) rotation.

13. devices (10) according to any one of claim 11 or 12, wherein the cap (80) is with centrally arranged Opening (88) or form.

14. devices (10) according to claim 13, wherein the accommodating member (16) is extending at least partially into the opening (88)。

15. a kind of systems (100), including device (10) and cable (11) as any one of above-mentioned claim.