DE102018133054A1 - Locking device and transport container - Google Patents

Abstract

The invention relates to a closure device (5a) for a transport container, in particular for a closable side wall of a transport container, comprising a closure device (6) which can be arranged on a side wall of the transport container and a corresponding holding device (7) which can be arranged on a further side wall of the transport container. In order to enable a particularly simple and stable mutual fixing of the side walls, the closure device (6) has at least one rotatable radial projection (16a; 16b) and the holding device (7) comprises at least one corresponding recess (19a; 19b) for carrying out the projection (16a; 16b) and a web (17) which is adjacent to the recess (19a; 19b) and which can be gripped behind by the projection (16a; 16b) after rotation.

Description

The invention relates to a closure device for a transport container according to the preamble of claim 1 and a transport container, in particular a pallet container, according to the preamble of claim 11.

Through use, closure devices for transport containers are known which comprise a closure device which can be arranged on a side wall of the transport container and a corresponding holding device which can be arranged on a further side wall of the transport container. The fastening device can be designed, for example, as a Velcro fastening comprising a fastening device in the form of a Velcro strip with barbs and a holding device in the form of a Velcro strip with loops. Furthermore, closure devices are also known, which are designed as push buttons. Such locking devices enable mutual fixing of adjacent side walls in order, for example, to fix a movable side wall in a closed position in a simple detachable manner to a further side wall.

The object of the invention is to provide a closure device which enables a particularly simple to operate and stable mutual fixation of side walls of a transport container.

This object is achieved in that the closure device has at least one rotatably mounted radial projection and the holding device comprises at least one corresponding recess for the passage of the projection as well as a web adjacent to the recess and engaging behind the projection after rotation. The form-fitting engagement of the web behind the projection enables a particularly stable mutual fastening of the closure device and the holding device, which can also be released particularly easily by rotating the radial projection.

In a preferred embodiment, the projection is additionally slidably mounted along a longitudinal direction, the longitudinal direction advantageously being the axis of rotation of the projection. As a result, the projection can be moved into a projecting position for connection to the holding device or, after the connection has been released, can be moved into a retracted position in which the projection is preferably arranged within the side wall and does not project outwards. This is particularly advantageous if the transport container is designed with collapsible side walls to reduce the installation space, since protrusions projecting outwards from the side walls would prevent a space-saving folding.

In a particularly advantageous embodiment, the at least one projection can be arranged on a handle part which is rotatably and displaceably mounted in a housing of the closure device. The handle part can be gripped particularly easily for turning and moving, which makes it easier to actuate the locking device.

The housing can advantageously be designed in a ring shape with a through opening and have a ring web projecting radially inwards at least in sections. Through the through opening, gripping of the grip part is also made possible from a side of the closure device facing away from the projection. The projecting annular web, which extends at least over an angular section of the annular housing, serves for the form-fitting mounting of the handle part and extends in the radial direction up to a radius which is smaller than the maximum radius of the projection.

In order to secure the grip part in the housing, the ring web can be encompassed by at least one stop projecting radially outward from the grip part and holding the at least one projection. The stop can extend in particular in the radial direction up to a radius which is larger than the smallest radius of the ring web.

In order to limit the displacement of the projection in the longitudinal direction, the stop and the projection, in particular in the direction of the axis of rotation, can be spaced apart from one another in such a way that the grip part relative to the housing between the abutment of the stop on the ring web in an extended position and the abutment the projection on the ring web is displaceable in a retracted position. Consequently, the distance of the stop from the projection is preferably greater than the wall thickness or the extent of the ring web in the direction of displacement of the handle part.

In an advantageous embodiment, the projection can be designed so that it can be displaced outwards so far that when the closure device and holding device are in mutual contact, the projection can engage behind the web holding the holding device after rotation. In the extended position, the protrusion must protrude so far relative to the housing that the web of the holding device resting on the closure device can be gripped behind.

In order to prevent unwanted loosening of the closure device, the web on the holding device can have at least one latching lug on a side facing away from the closure device. The at least one latching lug can be arranged in such a way that it adjoins the projection in a closed position and thus rotation of the projection out of the closed position is only possible by overcoming the latching lug by applying an additional torque. A rotation of the projection in the opposite direction can be made more difficult, for example, by a further locking lug or an angular stop can be prevented. In the first-mentioned variant, the projection or the handle part can be rotated from the closed position in both directions to a release position, whereas in the second-mentioned variant, rotation in the release position is only possible in one direction. However, the latching lugs can also be designed, for example, to protrude radially outward from the handle part and engage in corresponding latching grooves in the housing, in order to enable locking in the closed position and / or open position. In addition, corresponding locking lugs or an angle stop can also be provided in the open position in order to make rotation more difficult or to limit it.

To fasten the closure device to the walls of a transport container, the closure device and / or the holding device can have a holding web projecting radially outwards, in particular in a ring-shaped manner, for contacting in particular on a side wall of a transport container. In addition, the closure device and / or the holding device can comprise a separate holding ring, so that a side wall of a transport container can be clamped with the holding ring and the holding web. Instead of the annular circumferential retaining web and the retaining ring, however, it can also be provided that the closure device and / or the retaining device can be fully integrated into a side wall of a transport container, i.e. does not protrude, and is firmly connected to the side wall, for example, by means of gluing, welding or tensioning.

In order to prevent an unwanted protrusion of the projection against a side wall of a transport container in a release position, a spring can be provided which acts on the projection in the direction of displacement into the retracted position in the direction of the housing. This can prevent the projection from being damaged in the release position, in which it is not in engagement with the web of the holding device, or prevent the side wall from collapsing. By applying a counterforce, the projection can nevertheless be easily moved into a position protruding from a side wall of a transport container in order to hold the web on the holding device in a form-fitting manner after rotation.

Furthermore, the grip part, for example on the radially protruding stop, can have a recess which is limited to an angular section and which allows a view of an adjacent part of the housing. By marking the housing in the visible area of the recess in the closed position and / or the release position of the projection with a corresponding signal color, the correct position of the projection can be checked particularly easily. However, other markings, such as a pointer, can also be arranged on the housing and / or the handle part in order to signal the current position of the handle part and thus of the projection.

Furthermore, a transport container with at least one movable wall and an adjacent wall is claimed, in which the described closure device is provided for mutually fixing the walls. The movable wall can be formed, for example, by a flap arranged in a side wall or also by a separate side wall of the transport container.

In a preferred embodiment, the movable wall can in particular be formed by a side wall of the transport container with at least one bendable tab, the closure device or the holding device being arranged in the tab. The bendable tab can be bent to rest against an adjacent side wall, in which the corresponding holding device or locking device is arranged, in order to fix the locking device and the holding device to one another. The flap can advantageously be designed to grip around the adjacent side wall from the outside and to rest on the outside. Furthermore, a tab with a locking device or a holding device can be provided on opposite sides of the movable wall in order to be able to fix the wall on both sides to the adjacent wall by means of a locking device.

The transport container is particularly preferably a foldable transport container which comprises a base part and at least one foldable side wall detachably connected to the base part. Such foldable transport containers can be folded to save space for storage purposes or when no goods are to be transported, such as when transporting the transport container back. The one-part or multi-part side wall can be detached from the bottom part and folded down and placed on the bottom part. If necessary, a cover part can also be provided, which is then placed on the folded side wall or directly on the base part, so that together with the base and the cover part a closed package is created and the foldable transport container has compact external dimensions in this position.

The bottom part is expediently provided on its edge with a circumferential groove into which the side walls are to be inserted and supported and thus find a firm hold. While it is conceivable to produce the container in all possible sizes and shapes, the base part preferably has downwardly projecting projections as feet, between which there is space for the lifting fork of a forklift to engage.

• 1 eine perspektivische Darstellung eines Transportbehälters mit zwei Versch lussvorrichtu ngen;
• 2 eine weitere perspektivische Darstellung des Transportbehälters von 1;
• 3 eine perspektivische Darstellung einer der Verschlussvorrichtungen des Transportbehälters von 1 in einer Haltestellung;
• 4 eine weitere perspektivische Darstellung der Verschlussvorrichtung von 3;
• 5 eine Schnittdarstellung durch eine der Verschlussvorrichtungen des Transportbehälters von 1 in einer Haltestellung;
• 6 eine perspektivische Darstellung der Verschlussvorrichtung von 3 in einer Lösestellung;
• 7 eine weitere perspektivische Darstellung der Verschlussvorrichtung von 6;
• 8 eine Schnittdarstellung durch eine Verschlusseinrichtung der Verschlussvorrichtung von 7 in einer ausgefahrenen Stellung und
• 9 eine Schnittdarstellung durch die Verschlusseinrichtung der Verschlussvorrichtung von 7 in einer eingefahrenen Stellung.

Further special features and advantages of the invention result from the following description of a preferred exemplary embodiment with reference to the drawings. Show it:

• 1 a perspective view of a transport container with two closure devices;
• 2nd another perspective view of the transport container of 1 ;
• 3rd a perspective view of one of the closure devices of the transport container of 1 in a stop position;
• 4th another perspective view of the closure device of 3rd ;
• 5 a sectional view through one of the closure devices of the transport container of 1 in a stop position;
• 6 a perspective view of the closure device of 3rd in a release position;
• 7 another perspective view of the closure device of 6 ;
• 8th a sectional view through a closure device of the closure device of 7 in an extended position and
• 9 a sectional view through the closure device of the closure device of 7 in a retracted position.

In 1 is a perspective view of a cuboid transport container 1 shown which is a bottom part 2nd as well as with the bottom part 2nd detachably connected side walls 3a , 3b includes. The side wall 3a in the embodiment shown comprises the side walls and the rear wall of the cuboid transport container 1 and is made in one piece by bending the side wall 3a executed. The side wall 3b forms the front side wall, which comprises laterally protruding, angled tabs, of which the tab here 4th is shown.

The tab 4th can like the opposite, not shown further tab in the direction of the side wall 3a can be folded over so that the tabs on the side wall 3a outside concern. In the area of overlap of the tabs with the side wall 3a a closure device is arranged, of which in 1 the closure device 5a in the tab 4th is shown.
The bottom part 2nd has several protrusions protruding downwards in the form of pallet feet, which make it easy to transport the transport container 1 enable for example by means of a pallet truck

In 2nd is a further perspective view of the transport container 1 from 1 shows in which next to the closure device 5a also the other locking device 5b can be seen. By means of the locking devices 5a , 5b can the sidewall 3b simple and stable with the side wall 3a get connected. For example, a lateral filling of the transport container 1 to allow the locking devices 5a , 5b quickly solved and the side wall 3b can then be removed or opened.

With the transport container 1 is a foldable transport container in which the side walls 3a , 3b detachable with the bottom part 2nd are connected so that the transport container 1 is easy to disassemble. The side wall 3a is foldable with the three sides so that they can be easily folded at the edges. The tabs are the same 4th on the side wall 3b designed to be foldable so that they can be folded inwards or opened outwards. The correspondingly folded side walls 3a , 3b can then lay flat on the bottom part 2nd are stored, which results in particularly small external dimensions, for example, for storage or return transport of empty transport containers.

In 3rd is a perspective view of the closure device 5a from 1 shown. The locking device 5a includes one on the tab 4th arranged closure device 6 and a corresponding one on the side wall 3a arranged holding device 7 . The locking device 6 has an annular housing 8th with a through opening 9 on. In the passage opening 9 is a grip part 10 , which has a circular cross section, rotatably and additionally mounted in the direction of the axis of rotation. Around the handle part 10 To be able to grip particularly easily, this has a crossbar 11 on which is centered through the handle 10 runs.

For installation on the respective side wall 3a , 3b have the closure device 6 and the holding device 7 each have a radially outwardly projecting annular retaining web 12a , 12b for contact with the relevant side wall 3a , 3b of the transport container 1 on. The footbridges 12a , 12b are preferably on the end faces of the closure device facing away from one another 6 and the holding device 7 arranged so that the side walls in a mutual fixation 3a , 3b positively grip and hold together. Also include the closure device 6 and the holding device 7 each with a separate retaining ring 13a , 13b which on an outside of the closure device 6 and the holding device 7 are attachable. The retaining rings 13a , 13b each have a further footbridge 14a , 14b on one of the piers 12a , 12b opposite side of the retaining rings 13a , 13b on. Through the footbridges 12a , 14a or. 12b , 14b can the respective side wall 3a , 3b clamped positively and held reliably. In addition, the retaining ring 13a , 13b clamping wedges distributed on the outside in the circumferential direction 15a , 15b on which a radial bracing and thus an additional frictional connection with the side walls 3a , 3b enable.

The connection between the retaining rings 13a , 13b and the holding device 7 or the closure device 6 can be done for example via a threaded connection, in which one on the respective retaining ring 13a , 13b arranged internal thread with one on the holding device 7 or the closure device 6 arranged external threads keep interacting. Alternatively, the attachment of the holding device 7 and the closure device 6 on the respective side wall 3a , 3b also only by clamping force, for example due to the clamping wedges 15a , 15b or be formed by a material connection, for example by welding.

In 4th is another perspective view of the closure device 5a from 3rd shown. This view of the holding device 7 corresponds to the viewing direction from the inside of the transport container 1 on the locking device 5a , whereas in 3rd the direction of view from outside the transport container 1 on the locking device 5a is shown. In an alternative embodiment, however, one or both of the closure devices can also be used 5a , 5b the other way around in the side walls 3a , 3b be attached. Depending on the orientation, the crossbar can then 11 of the handle part 10 can be gripped from the outside or inside to the closure device 5a , 5b to operate.

Again 4th to take is on the handle 10 in particular on one of the holding devices 7 facing free end a projection 16a and diametrically opposite another lead 16b arranged. Because the attachment by means of the projections 16a , 16b with respect to the axis of rotation of the handle part 10 is axisymmetric, the description is based on the attachment by means of the projection 16a limited, but is also opposite to the protrusion 16b educated. The tabs 16a , 16b are on the handle part by means of screws, not shown 10 attached, the screw channels in the handle 10 preferably up to the crossbar 11 extend, which has reinforcements for this.

In order to secure the mutual locking device in the holding position shown 6 and holding device 7 to enable the projection to reach behind 16a one on the holding device 7 arranged and radially inwardly projecting web 17th form-fitting. In the circumferential direction adjacent to the projection 16a in the stop position shown are on the web 17th one latch in each of the two directions of rotation 18a , 18b on one of the locking devices 6 opposite side of the holding device 7 arranged. Through the latches 18a , 18b becomes an unwanted twisting of the projection 16a and thus loosening the closure device 5a prevented. However, if sufficient torque is applied, the locking lug can 18a or. 18b be overcome and the lead 16a depending on the direction of rotation either to a recess 19a or 19b in the jetty 17th be twisted. The cutouts 19a , 19b are corresponding to the protrusions 16a , 16b formed, so have the same or larger dimensions, so that the projections 16a , 16b through the recesses 19a , 19b for loosening or fastening the locking device 5a can be passed through.

In 5 is a sectional view through the closure device 5a of the transport container 1 from 1 shown in the stop position. As can be seen, the projection reaches behind 16a the jetty 17th form-fitting and in the through opening 9 of the annular housing 8th is a radially inward projecting ring web 20 arranged, on which one of the handle part 10 radially outwardly projecting annular stop 21st supports. By the attack 21st and the ledges 16a or. 16b becomes the ring bridge 20 and in the stop position shown, the web 17th holding around, so that a mutual loosening of the closure device 6 and the holding device 7 without twisting the projections 16a , 16b not possible.

In 6 is a perspective view of the closure device 5a from 3rd shown in a release position. Here is the handle part 10 with the ledges 16a , 16b as far as that in the 3rd and 4th shown stop position that the projections 16a , 16b with the recesses no longer recognizable here 19a , 19b is congruent and in this position the projections 16a , 16b through the recess 19a , 19b can be passed to the closure device 5a to solve.

In 7 is the locking device 5a also shown in the release position, but in contrast to the representation of 6 the locking device 6 and the holding device 7 are now spaced apart, as is the case when the side walls 3a , 3b be separated from each other.

In 8th is a sectional view through the closure device 6 from 7 shown. As already described, the stop reaches around 21st and the ledges 16a , 16b the ring bridge 20 holding. As can be seen from the illustration, the stop is 21st and the ledges 16a , 16b along the axis of rotation of the handle part 10 spaced from each other such that the handle part 10 relative to the housing 8th between the plant of the attack 21st on the ring bridge 20 in the extended position shown and the projections in contact 16a , 16b on the ring bridge 20 is displaceable in a retracted position. At the in 6 Mutual system of closure device shown 6 and holding device 7 need the tabs 16a , 16b so far in the direction of the axis of rotation of the handle part 10 that the projections can be moved outward 16a , 16b after turning the bridge 17th on the holding device 7 can reach behind.

In 9 is a sectional view through the closure device 6 the locking device 1 from 7 shown in a retracted position in which the projections 16a , 16b on the ring bridge 20 issue. As can be seen from the illustration, the ring land is in the housing 8th arranged so far inwards that the projections 16a , 16b not in the release position shown over the housing 8th protruding outwards and therefore cannot be damaged. Instead of the ring bridge 20 could alternatively only have one recess in the housing 8th to accommodate the protrusions 16a , 16b be provided in which the projections 16a , 16b be positively received in the retracted position shown. This can also result in unintentional twisting of the handle part 10 prevented and an additional backup are made possible. In a further alternative embodiment, not shown, a spring can additionally be provided, for example a spiral or plate spring, around the handle part 10 in the retracted position shown. This spring can be between the ring bridge 20 and the attack 21st be arranged and supported on it.

In addition, the attack 21st have a recess in the circumferential direction, which has a view of the ring web 20 releases. There will be a corresponding marking on the ring bridge 20 provided in the position of the recess in the retracted release position shown and / or the extended and rotated holding position, the correct position of the handle part can easily be 10 be checked.

Reference list

1

Shipping container

2nd

Bottom part

3a, 3b

Side wall

4th

Tab

5a, 5b

Locking device

6

Closure device

7

Holding device

8th

casing

9

Through opening

10th

Grip part

11

Crossbar

12a, 12b

Landing stage

13a, 13b

Retaining ring

14a, 14b

Another landing stage

15a, 15b

Wedge

16a, 16b

head Start

17th

web

18a, 18b

Latch

19a, 19b

Recess

20

Ring bridge

21

attack

Claims (13)

Closure device (5a; 5b) for a transport container (1), in particular for a closable side wall (3b) of a transport container (1), comprising a closure device (6) which can be arranged on a side wall (3b) of the transport container (1) and a corresponding, on a further side wall (3a) of the transport container (1) which can be arranged holding device (7), thereby characterized in that the closure device (6) has at least one rotatably mounted radial projection (16a; 16b) and the holding device (7) has at least one corresponding recess (19a; 19b) for the passage of the projection (16a; 16b) and one on the recess (19a; 19b) adjacent and behind the projection (16a; 16b) after the rotation behind engaging web (17). Closure device (5a; 5b) after Claim 1 , characterized in that the projection (16a; 16b) is additionally mounted displaceably along a longitudinal direction. Closure device (5a; 5b) after Claim 1 or 2nd , characterized in that the at least one projection (16a; 16b) is arranged on a handle part (10) which is rotatably and displaceably mounted in a housing (8) of the closure device (6). Closure device (5a; 5b) after Claim 3 , characterized in that the housing (8) is ring-shaped with a through opening (9) and has a ring web (20) projecting radially inwards at least in sections. Closure device (5a; 5b) after Claim 4 , characterized in that the ring web (20) is held by at least one stop (21) projecting radially outward from the handle part (10) and the at least one projection (16a; 16b). Closure device (5a; 5b) after Claim 5 , characterized in that the stop (21) and the projection (16a; 16b) are spaced apart from one another in such a way that the handle part (10) relative to the housing (8) between the abutment of the stop (21) on the ring web (20) in an extended position and the contact of the projection (16a; 16b) on the ring web (20) in a retracted position. Closure device (5a; 5b) according to one of the preceding claims, characterized in that when the closure device (6) and the holding device (7) are in mutual contact, the projection (16a; 16b) can be displaced outwardly so far that the projection (16a ; 16b) after rotation can engage behind the web (17) on the holding device (7). Closure device (5a; 5b) according to one of the preceding claims, characterized in that the web (17) on the holding device (7) has at least one latching lug (18a; 18b) on a side facing away from the closure device (6). Closure device (5a; 5b) according to any one of the preceding claims, characterized in that the closure device (6) and / or the holding device (7) for at least one radially outwardly projecting, in particular annular circumferential retaining web (12a; 12b; 14a; 14b) Have system on a side wall (3a; 3b) of a transport container (1). Closure device (5a; 5b) after Claim 9 , characterized in that the closure device (6) and / or the holding device (7) comprise a separate retaining ring (13a; 13b), so that with the retaining ring (13a; 13b) and the retaining web (12a; 12b) a side wall (3a ; 3b) a transport container (1) can be clamped. Transport container (1) with at least one movable wall (3b) and an adjacent wall (3a), characterized by at least one closure device (5a; 5b) according to one of the Claims 1 to 10 for the mutual fixation of the walls (3a; 3b). Transport container (1) after Claim 11 , characterized in that the movable wall (3b) is formed by a side wall (3b) of the transport container (1) with at least one bendable tab (4) and the closure device (6) or the holding device (7) in the tab (4) is arranged. Transport container (1) after Claim 11 or 12th , characterized by a base part (2) which is detachably connected to a foldable side wall (3a; 3b).

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