JPH0865369A - Hinge member - Google Patents

Abstract

PURPOSE: To obtain a hinge member which is simple in mechanism, and holds a lid in a closed state and an open state and automatically opens the lid. CONSTITUTION: While the lid is closed, the abutting part 40 of a stopper 36 abuts against the top surface of the plate piece 32 of a body 26 of rotation and is pressed strongly by a compression spring 52. Consequently, the plate piece 32 is sandwiched and locked between a step part 22 and the abutting part 40. When the lid is rotated manually in the opening direction, the plate piece 32 leaves the abutting part 40 and falls in the stopper 36 to release the body 26 of rotation from being locked. Consequently, the body 26 of rotation rotates with the energizing force of a torsion spring 30 and the lid 10 is automatically opened. If an unreasonable force that further opens the lid operates on the lid 10, a lock claw 34 moves onto a projection 24 and the body 26 of rotation becomes rotatable, so the hinge part is never damaged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge member that supports a lid so that the lid can be opened and closed.

[0002]

2. Description of the Related Art Like a lid of a mobile phone or a lid of an AV device,
In order to realize the opening / closing mode according to the characteristics of the equipment used,
Hinge members of each type have been proposed.

One of them is a free stop type hinge member. With this hinge member, at the desired opening angle,
Although the lid can be stopped and opened, it has a drawback that the structure is complicated and the manufacturing cost is high.

There is also a hinge member that locks the lid in a closed state and opens it by the force of a spring. However, it is necessary to dispose the lock mechanism at a place other than the hinge portion, and the appearance is not so good. Further, since the open position is fixed by the stopper, there is a disadvantage that the stopper is damaged when an unexpected force is applied to the lid.

Further, there is a hinge member that locks when the lid is closed and is manually opened. However, there is no sense of quality, and the lid cannot keep the open position with play in the opened state.

[0006]

SUMMARY OF THE INVENTION In consideration of the above facts, an object of the present invention is to provide a hinge member which has a simple mechanism, holds a lid in a closed state and an open state, and automatically opens the lid. .

[0007]

[Means for Solving the Problems]

The hinge member according to claim 1 is a hinge member that pivotally supports the lid with respect to the main body so that the lid can be opened and closed. The casing is attached to the main body, and the lid is attached by being rotatably inserted into the casing. The shaft is provided on the rotating body, the plate protruding from the side surface of the rotating body, the lock claw formed on the back surface of the plate, and the step formed on the opening of the casing. A protrusion capable of locking the lock pawl, a stopper that comes into contact with or not comes into contact with the surface of the plate piece depending on the rotational position of the rotating body, a pressing means that presses the stopper against the plate piece, And a rotational force applying means which is disposed in the casing and applies a rotational force to the rotating body.

A hinge member according to a second aspect of the present invention is a hinge member that pivotally supports a lid with respect to the main body so as to be openable and closable, and a casing attached to the main body and an axial end portion that is non-rotatably inserted into the casing. A cam body having a cam groove formed on a peripheral edge thereof; a rotating body having a trace portion formed at one end for engaging with the cam groove and having a shaft attached to the other end for protruding; and a rotating body for rotating the cam body. And a pressing unit that presses against the body.

According to a third aspect of the present invention, there is provided a hinge member for pivotally supporting a lid with respect to the main body so that the lid can be opened and closed, and a casing attached to the main body, and a lock claw protruding from an opening peripheral edge of the casing. A rotating body that is inserted into the casing and has a rotatable tubular body and is attached to the lid; a rotary claw formed on the outer periphery of the tubular body and locked by the lock claw; And a rotational force applying means for applying a rotational force to the body.

[0011]

In the hinge member according to the first aspect of the present invention, the casing is attached to the main body, and the rotating body is inserted into the casing so as to be rotatable. A lid is attached to a shaft provided on the rotating body and can be opened and closed with respect to the main body.

A plate piece projects from the side surface of the rotating body, and a lock claw is formed on the back surface of the plate piece. The lock claw is engaged with a protrusion provided on a step formed in the opening of the casing to stop the rotation of the rotating body to which the rotational force is applied by the rotational force applying means.

On the other hand, the stopper is pressed toward the plate piece by the pressing means, and contacts the surface of the plate piece to stop the rotation of the rotating body depending on the rotational position of the rotating body. That is, the plate piece is sandwiched between the stopper and the step portion, and the rotation of the rotating body to which the rotational force is applied by the rotational force applying means is restricted.

Here, when the lid is in the closed state, the plate piece and the stopper are set to come into contact with each other, so that the lid is not opened carelessly. Next, when the lid is manually opened a little, the rotary body rotates a little along with this, the stopper and the plate piece are brought into a non-contact state, and the rotary body rotates by the rotational force applied from the rotational force applying means. . Therefore, the lid automatically opens.

Next, when the rotating body is rotated by a certain angle, the locking claw of the plate piece is locked by the projection formed on the step portion, the rotating body is stopped from rotating, and the lid is opened by a predetermined angle. Locked. Here, when an unreasonable opening force to further open the lid acts on the lid, the lock claws get over the protrusions and the rotating body can rotate, so that the hinge portion is not damaged.

When closing the lid, if the lid is manually rotated to the position where the plate piece and the stopper come into contact with each other, the lid is locked in the closed state.

In the hinge member according to the second aspect, the cam groove of the cam body which is non-rotatably inserted into the casing mounted on the main body and the trace portion of the rotary body whose shaft is mounted on the lid are engaged with each other. are doing.

Here, in the closed state of the lid, the cam body is pressed toward the rotating body by the pressing means, and the cam groove of the cam body and the trace portion of the rotating body are engaged with each other.

Here, when the rotating member is manually rotated through the lid, the trace portion rides over the convex portion of the cam groove and slides in the concave portion of the cam groove by the pressing force of the pressing means to form the next convex portion. The rotating body rotates until it is engaged. That is, the lid attached to the rotating body is automatically opened.

Here, when an unreasonable opening force for further opening the lid acts on the lid, the trace portion gets over the convex portion and the rotating body becomes rotatable, so that the hinge portion is not damaged.

In the hinge member according to the third aspect, the cylindrical body of the rotating body is inserted into the casing attached to the main body. A lid is attached to the rotating body so that the lid opens and closes with respect to the main body.

Locking claws are provided so as to project from the peripheral edge of the opening of the casing, and the rotating claws formed on the outer periphery of the cylindrical body are locked.

Here, in the closed state of the lid, since the rotary claw is locked to the lock claw, the rotation of the rotating body is stopped against the biasing force of the rotational force applying means, and the lid is in the closed state. maintain.

Next, when the rotary member is manually rotated through the lid, the rotary pawl rides over the lock pawl and is rotated by the rotational force of the rotational force applying means until the lock pawl is locked by the next lock pawl, and the lid is closed. Automatically open. Here, when an unreasonable opening force for further opening the lid acts on the lid, the rotary claws pass over the lock claws and the rotating body can rotate, so that the hinge is not damaged.

[0025]

1 to 3 show a hinge portion of a mobile phone using a hinge member according to the first embodiment.

At the end of the main body 12 of this mobile phone, a substantially cylindrical shaft body 14 is erected. In this shaft body 14,
A casing 20 composed of a small diameter cylinder 16 and a large diameter cylinder 18.
Is installed. A step portion 22 is formed between the small diameter cylinder 16 and the large diameter cylinder 18. Two protrusions 24 are provided on the step portion 22 so as to face each other in the radial direction.

The small-diameter portion 16 has a cylindrical rotating body 2
6 is inserted into the casing 20 so that the casing 6 can rotate. A connecting portion 28 is provided at the tip of the rotating body 26 in the insertion direction.
Is formed, and one end thereof has a hooking portion 17 of the casing 20.
The other end of the torsion spring 30 fixed to (see FIG. 4) is connected. As a result, a rotational force is applied to the rotating body 26.

On the other hand, a plate piece 32 projects radially from the side surface of the rotating body 26. On the back surface (casing 20 side) of the plate piece 32, a lock claw 34 is provided so as to project,
The protrusions 24 formed on the step portion 22 are engaged with the protrusions 24.

On the surface of the plate piece 32, a ring-shaped stopper 36 which is inserted into the rotating body 26 can come into contact. The inner diameter of the stopper 36 is the plate piece 32 of the rotating body 26.
It is slightly larger than the circle traced by the tip of. As a result, the plate piece 32 can fall inside the stopper 36.

On the outer peripheral surface of the stopper 36, there is formed a recess 38 which is recessed toward the center. This recess 38
Is locked by a locking body 42 projecting from the peripheral wall of the large-diameter portion 18, so that the stopper 36 cannot rotate with respect to the casing 20.

Further, the stopper 36 is formed with a contact portion 40 corresponding to the recess 38 and protruding toward the center side.
As shown in FIG. 6, it can come into contact with the surface of the plate piece 32. The tip of the contact portion 40 is processed into an arc shape so that the outer peripheral surface of the rotating body 26 slides.

On the other hand, from the other end of the rotating body 26 to the shaft 50
Is extended in the axial direction. When the cylindrical cap 46 is fitted into the large-diameter portion 18 of the casing 20, the shaft 50 penetrates through a through hole 48 formed in the bottom surface of the cylindrical cap 46. As shown in FIG. 2, the shaft 50 penetrating the through hole 48 is connected to a mounting hole 53 of a connecting body 52 projecting from the lid 10 so as to sandwich the shaft body 14 from both sides. Further, a pin 54 is provided on the other end of the shaft body 14 so as to rotatably support the other coupling body 52.

Next, the opening / closing operation of the lid using the hinge member according to this embodiment will be described. When the lid 10 is closed as shown in FIG. 3, as shown in FIGS. 4 and 6,
The contact portion 40 of the stopper 36 is in contact with the surface of the plate piece 32 of the rotating body 26, and is strongly pressed by the compression spring 52. As a result, the plate piece 32 is sandwiched and locked between the step portion 22 and the contact portion 40.

Next, as shown in FIGS. 5 and 7, the lid 10
Is manually rotated in the direction of arrow A (the direction of opening the lid),
The plate piece 32 separates from the contact portion 40 and falls inside the stopper 36, and the locked state of the rotating body 26 is released.
Therefore, the rotating body 26 is rotated in the arrow A direction by the biasing force of the torsion spring 30, and the lid 10 is automatically opened.

In this open state, the lock claw 34 formed on the plate piece 32 is projected by the urging force of the torsion spring 30.
4, the lid 10 is locked by being strongly pressed, and the opening angle is about 90 °.

When an unreasonable opening force for further opening the lid 10 acts on the lid 10, the locking claw 34 rides over the projection 24 and the rotating body 26 becomes rotatable as shown in FIG. , The hinge is not damaged. At this time, as shown in FIG. 9, the rotating body 26 is rotated by the urging force of the torsion spring 30, and the plate piece 32 abuts against the side surface of the abutting portion 22 to restrict the rotation of the rotating body 26.

When the lid 10 is closed, if the lid 10 is manually rotated until the plate 32 and the surface of the contact portion 22 come into contact with each other, the plate piece 32 is again pressed by the urging force of the compression spring 52. It is sandwiched between the contact part 40 and the contact part 40 and locked.

Next, the hinge member according to the second embodiment will be described. In the second embodiment, the cylindrical casing 56 shown in FIG. 10 is attached to the shaft body of the main body.

A cam body 60 having a circular outer shape is inserted into the casing 56. A columnar protrusion 64 is projected from a base plate 62 formed at the end of the cam body 60, and an end of a compression spring 66 mounted in the casing 56 is fitted therein. . As a result, the cam body 60 is urged in the direction of coming out of the casing 56. In addition, the casing 56
A long hole 58 is formed in the side surface of the cam body 60 in the longitudinal direction, and a guide portion 68 protruding from the side surface of the cam body 60 is inserted.
The cam body 60 is slid in the longitudinal direction of the casing 56 without rotating.

On the other hand, a cam groove 70 is formed at the other end of the cam body 60 along the circumferential direction. This cam groove 70
The trace portion 7 extending from the substrate 74 of the rotating body 72.
6 is tracing. This trace part 7
A core member 78 is provided so as to project from the substrate 74 toward the cam body 60 between 6 and 6. The core material 78 is inserted into the hollow portion of the cam body 60, and the trace portion 76 draws a circular orbit.

On the other hand, the cap 82 is provided on the other surface of the substrate 74.
Shaft 80 penetrating through hole 84 formed on the top surface of the shaft
Is projected. The shaft 80 is connected to the shank of the lid. Further, from the opening edge of the cap 82, a pair of elastic legs 86 face each other and extend in the longitudinal direction. A rectangular opening 88 is formed at the center of the elastic leg 86, and the elastic leg 86 is designed to be easily bent.

A claw 90 is provided on the side surface of the casing 56. A guide surface 90A that is inclined toward the opening of the casing 56 is formed on the claw 90, the end of the guide surface 90A is directly dropped, and a locking surface 90B that locks the end of the opening 88 in the longitudinal direction. It is said that. This allows the elastic legs 8 of the cap 82 to be inserted with the compression spring 66, the cam body 60, and the rotating body 72 inserted into the casing 56.
When 6 is pressed against the side surface of the casing 56 and pushed in while being guided by the guide surface 90A, the elastic legs 86 elastically expand outward. Next, when the end of the opening 88 reaches the locking surface 90B, the elastic leg 86 elastically restores, and the opening 88 is opened in the locking surface 90B.
Is locked at the end.

Next, the opening / closing operation of the lid using the hinge member according to this embodiment will be described. As shown in FIG. 11, the cam groove 70 of the cam body 70 is formed at the end of the locking surface 70A on which the trace portion 76 is locked, the steep slope 70B that slopes steeply from the locking surface 70A, and the steep slope 70B. The climbing surface 70C and the gently sloping surface 70D that gently inclines from the end of the riding surface 70C to the locking surface 70A are continuously formed in the circumferential direction.

Here, when the lid 10 is closed, the locking surface 70A is strongly pressed against the trace portion 76 by the compression spring 66, and the rotation of the rotating body 72 is stopped.

Next, as shown in FIG. 12, when the lid 10 is manually rotated in the opening direction, the trace portion 76 causes the locking surface 7 to move.
From 0A to a steep slope 70B, and further overboard surface 70C
As shown in FIG. 13, when the trailing end is crossed, the urging force of the compression spring 66 slides on the gently sloped surface 70D and locks the lock surface 70A. The movement of the trace portion 76 is converted into the rotational movement of the rotating body 72, so that the lid 10 attached to the shaft 80 automatically opens.

When an unreasonable opening force for further opening the lid 10 acts on the lid 10, the trace portion 76 slides up the steep slope 70B, so that the rotating body 72 is not rotated and the hinge portion is not damaged. .

In the present embodiment, the opening angle of the lid 10 is 180 °, but the opening angle of the lid can be adjusted by changing the shape of the cam groove 70 in a timely manner.

Next, the hinge member according to the third embodiment will be described. In the third embodiment, ribs 94 are formed on the side surface of the cylindrical casing 92 along the longitudinal direction. The rib 94 engages with the key groove 100 when the casing 92 is inserted into the mounting hole 98 formed in the main body 96, and fixes the casing 92 to the main body 96 so as not to rotate.

At the end of the casing 92, as shown in FIG. 19, lock claws 102, 1 facing each other in the radial direction are provided.
04 is projected. The shorter gap between the lock claw 102 and the lock claw 104 serves as a locking groove 106, and
The longer one is the guideway 108.

The locking groove 106 or the guide path 108
In addition, the rotary claw 1 extended from the substrate 114 of the rotary body 112
10 is locked or guided. Between the rotating claws 110, a cylindrical body 116 projects from the substrate 114. The cylindrical body 116 is inserted into the hollow portion of the casing 92 so that the rotary claw 110 draws a circular orbit.

On the other hand, a keyhole-shaped groove 118 is formed on the other surface of the substrate 114. The groove bottom at the center of the groove 118 is open, and one end of the torsion spring 120 can pass through the cylindrical body 116 and penetrate the substrate 114. One end of the torsion spring 120 is hooked in the hooking groove 124 of the stop plate 122, and the stop plate 122 is fitted in the groove 118. A circular hole 126 is provided upright in the stopper plate 122 and a pin 128 is provided upright in the groove 118. When the stopper plate 122 is fitted in the groove 118, the circular hole 126 and the pin 128 are fitted together. ing.

The other end of the torsion spring 120 has a casing 92.
The rotating body 1 is hooked by a hooking portion 130 formed at the bottom of the rotor 1.
A rotational force is applied to 12.

Further, on the outer peripheral surface of the substrate 114, opposed ribs 132 are formed. When the substrate 114 is fitted into the mounting hole 136 formed in the shaft portion of the lid 134, the key groove 138 and the rib 132 are formed. Are engaged to rotate the lid 134 together with the rotating body 112.

Next, the opening / closing operation of the lid using the hinge member according to this embodiment will be described. As shown in FIG. 15, when the lid 134 is closed, the rotary claw 110 is engaged with the locking groove 106, and the rotation of the rotating body 112 is stopped.

Next, as shown in FIG. 16, when the lid 134 is manually rotated in the opening direction, the rotary claw 110 is locked by the locking groove 1.
From 06 to the upper end of the lock claw 102. When the hand is released from the lid 134 in this state, as shown in FIG. 17, the rotating pawl 110 slides down the lock pawl 102 by the rotational force of the torsion spring 120, and further hits the lock pawl 104 as shown in FIG. Be locked. Since the movement of the rotary claw 110 is converted into the rotary movement of the rotary body 112, the lid 134 attached to the rotary body 112 is automatically opened.

Here, when an unreasonable opening force for further opening the lid 134 acts on the lid 134, the rotary claw 110 slides up the lock claw 104 and is locked in the locking groove 106, and further more. When a force is applied, the lock claw 102 slides up to make the rotating body 112 rotatable, so that a large force does not act and the hinge portion is not damaged.

[0057]

Since the present invention has the above-mentioned structure, the mechanism is simple and the lid can be held in the closed state and the open state, and the lid can be automatically opened. Further, even if an excessive force is applied with the lid opened, the hinge portion will not be damaged.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a hinge member according to a first embodiment.

FIG. 2 is an exploded perspective view showing a mobile phone using the hinge member according to the first embodiment.

FIG. 3 is a perspective view showing a closed state of a lid using the hinge member according to the first embodiment.

FIG. 4 is a cross-sectional view of a hinge member according to the first embodiment.

FIG. 5 is a cross-sectional view of a hinge member according to the first embodiment.

FIG. 6 is a front view showing the relationship between the stopper of the hinge member, the plate piece, the lock claw, and the protrusion according to the first embodiment.

FIG. 7 is a front view showing the relationship between the stopper, the plate piece, the lock claw, and the protrusion of the hinge member according to the first embodiment.

FIG. 8 is a front view showing the relationship between the stopper of the hinge member, the plate piece, the lock claw, and the protrusion according to the first embodiment.

FIG. 9 is a front view showing the relationship between the stopper of the hinge member, the plate piece, the lock claw, and the protrusion according to the first embodiment.

FIG. 10 is an exploded perspective view showing a hinge member according to a second embodiment.

FIG. 11 is a development view showing the relationship between the trace portion and the cam groove of the hinge member according to the second embodiment.

FIG. 12 is a development view showing the relationship between the trace portion and the cam groove of the hinge member according to the second embodiment.

FIG. 13 is a development view showing the relationship between the trace portion and the cam groove of the hinge member according to the second embodiment.

FIG. 14 is an exploded perspective view showing a hinge member according to a third embodiment.

FIG. 15 is a development view showing a relationship between a rotating claw and a lock claw of a hinge member according to a third example.

FIG. 16 is a development view showing a relationship between a rotating claw and a lock claw of a hinge member according to a third example.

FIG. 17 is a development view showing the relationship between a rotating claw and a lock claw of the hinge member according to the third example.

FIG. 18 is a development view showing the relationship between the rotary claw and the lock claw of the hinge member according to the third example.

FIG. 19 is a front view of the lock claw of the hinge member according to the third embodiment.

[Explanation of symbols]

 20 Casing 22 Step 24 Protrusion 26 Rotating Body 30 Torsion Spring (Turning Force Applying Means) 32 Plate Piece 34 Lock Claw 36 Stopper 56 Casing 60 Cam Body 66 Compression Spring (Pressing Means) 72 Rotating Body 92 Casing 102 Lock Claw 104 Lock Claw 110 Rotating claw 112 Rotating body 120 Torsion spring (rotational force applying means)

Claims (3)

[Claims] 1. A hinge member for pivotally supporting a lid with respect to a main body so that the lid can be opened and closed. A casing attached to the main body and a shaft rotatably inserted into the casing and attached with the lid are provided to project in an axial direction. A rotating body, a plate piece protruding from a side surface of the rotating body, a lock claw formed on the back surface of the plate piece, and a lock claw provided on a step formed in the opening of the casing and capable of locking the lock claw A protrusion, a stopper that is brought into contact with or not brought into contact with the surface of the plate piece depending on the rotational position of the rotating body, a pressing unit that presses the stopper against the plate piece, and a rotation member that is disposed inside the casing. A hinge member having a rotational force applying means for applying a rotational force to a body. 2. A hinge member for axially supporting a lid to be opened and closed with respect to a main body, wherein a casing attached to the main body and a cam groove formed in a non-rotatably inserted into the casing at an end peripheral edge in an axial direction. A cam body, a rotor having a trace portion formed at one end that engages with the cam groove and a shaft to which the lid is attached protruding from the other end, and a pressing unit that presses the cam body against the rotor. A hinge member having: 3. A hinge member for pivotally supporting a lid with respect to a main body so as to be openable and closable, a casing attached to the main body, a lock claw projecting from an opening peripheral edge of the casing, and inserted into the casing and rotatable. A rotating body having a cylindrical body and attached to the lid, a rotating claw formed on the outer periphery of the cylindrical body and locked by the lock claw, and a rotation arranged in the casing for imparting a rotational force to the rotating body. A force applying means, and a hinge member.