JPH11198958A - Device for releasing locking action and method for using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for releasing a locking action having a small number of components and assembly manhours and having a simple shape, and a method for using the device. SOLUTION: There are provided an arm member 21 wherein a proximal end thereof is fixed to a fixing part 24 and at least two hinge parts 27a, 27b are provided on the member 27 in the longitudinal direction thereof, a locking member 23 which is erected at a position midway between the hinge part 27a on the side of the proximal end of the member 21 and the distal end of the member 27 and on the forward end of which a locking claw 23a for locking a claw locking hole 12a of a cover 12 is formed, and an operation button 29 which is operated to apply forces to the forward end of the member 27.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock release device used for locking or unlocking a lid of a CD player or the like in a closed state and a method of using the same.

[0002]

2. Description of the Related Art As a conventional lock release device, for example, there is a lock release device 100 as shown in FIG. In this figure, the lid 102 is locked in a closed state by the locking claw 104a at the tip end of the locking member 104 being locked in the locking hole 102a of the lid 102.

The locking member 104 is reciprocally held in a claw holder 106, and its rear end is pressed by a spring 108 to project outward (to the left in the drawing).
4a fits into and locks the locking hole 102a of the lid 102, whereby the lid 102 can be locked in a closed state.

The locking member 104 has an inclined cam surface 1.
04b is formed, and a cam surface 112a formed at the lower end of an operating portion 112 extending downward in the figure of the operation button 110 is slidable on the cam surface 104b. That is, the operation button 110 can be moved up and down along a guide section (not shown), and is always pressed by a spring (not shown) and stays at the raised position.

When a downward force is applied to the upper surface of the operation button 110, the operation button 110 is lowered, and the cam surface 112 a is moved to the cam surface 104 of the locking member 104.
Slide with b. For this reason, as shown in FIG. 13, the locking member 104 compresses the spring 108 and moves rightward in the drawing, so that the locking claw 104 a
02a, the locked state of the lid 102 is released, and the lid 102 rotates upward and opens.

FIG. 14 is a view showing another conventional lock release device 120. As shown in FIG. This lock release device 120
The bent portion of the substantially U-shaped locking member 122 is
22a, and in the vicinity of the spring portion 122a,
A fitting support member 126 that is rollably fitted and supported in the recess 124a of the stationary member 124 is provided integrally.

A locking claw 122b for locking the locking hole 102a of the lid 102 is formed at the tip of the locking member 122 on the side of the fitting support member 126. A button-shaped operation unit 1 is provided at the tip end opposite to the portion 122b.
22c is formed.

[0008] Such a lock release device 120 is
The operation unit 122c is normally pressed by a spring or the like (not shown) and rises to maintain a locked state in which the lid 102 is closed. However, when a downward force is applied to the upper surface of the operation section 122c, as shown in FIG. 15, the operation section 122c descends, so that the fitting support member 126 rolls in the recess 124a, and the spring section 122a It bends more. For this reason, the portion between the locking claw 122b of the locking member 122 and the fitting support member 126 falls to the right side in the drawing, and the locking claw 122b comes off the locking hole 102a. The locked state is released.

[0009]

However, in the conventional lock release device 100, the locking member 10 is not provided.
4 and the operation button 110 are separate components, and the spring 108 is also required separately. Therefore, there is a problem that the number of components is increased, the number of assembling steps is increased, and a cost increase cannot be avoided.

Further, the conventional lock release device 120 is used.
Since the operating portion 122c, the locking claw portion 122b, and the spring portion 122a are integrally formed, the number of components is reduced and the number of assembling steps is reduced.
However, there is a problem that the design is not easy due to the complicated shape of the mold, and it is difficult to manufacture a mold for molding, and the mold becomes expensive.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a lock release device having a small number of parts and a small number of assembly steps and a simple shape, and a method of using the same.

[0012]

In order to solve the above-mentioned problems, a lock release device according to the present invention comprises an arm member having a base end portion fixed to a fixed portion and having at least one hinge portion in a longitudinal direction thereof. A locking member having a locking claw formed on a distal end side of the arm member with respect to a hinge portion on a base end side of the arm member, the locking claw being configured to lock a mating member at its own distal end; And an operation unit that is operated when a force is applied to the distal end of the member.

According to the lock release device having such a configuration, by applying a force to the distal end portion of the arm member by operating the operating portion, the hinge portion of the arm member is deformed, and the hinge portion on the base end side is deformed. When the arm member on the tip end side is further tilted, and the locking member is tilted integrally with the further tilted arm member, the locking claw can be disengaged from the counterpart member to release the locking operation.

[0014]

Embodiments of the present invention will be specifically described below with reference to the drawings. 1 to 9
FIG. 1 is a diagram referred to for explaining a lock operation releasing device 21 of a CD player 10 according to a first embodiment of a lock operation releasing device and a method of using the same according to the present invention.

In the CD player 10 shown in FIGS. 1 and 2, the lid 12 is rotatably supported by rotating shafts 16 and 17 provided in a cabinet 14, and a torsion coil spring 1 is provided.
9, a force is constantly applied in the direction in which the lid 12 opens.
Also, a claw locking hole 12 formed at the bent front end of the lid 12 is formed.
By locking the locking claw 23a of the lock release device 21 to the lock a, the lid 12 can be locked against the torsion coil spring 19 so as to maintain its closed state.

The lock release device 21 has a T-shaped fixing portion 24 fixed to the cabinet 14 as shown in FIGS. 3 to 5, and a predetermined structure is provided on one side of the fixing portion 24. Are formed. That is, the base ends of the three arm members 25, 26, 27 are integrally connected to the fixed portion 24, and these arm members 25, 26, 2
7 has two hinge portions 25a, 25b, 26, respectively.
a, 26b, 27a, and 27b are formed in the arm members so as to be vertically opposite to each other.

The distal ends of the arm members 25 and 26 are integrally connected to a horizontal plate portion 32, and a cylindrical operation button 29 (operation portion) having a low height is formed above the horizontal plate portion 32. Have been. A connection arm 30 extending substantially vertically is integrally formed between the distal end of the arm member 27 and the lower surface of the horizontal plate portion 32.

Hinge portions 27a and 27b of arm member 27
A locking member 23 extending in a substantially vertical direction is erected between the upper and lower ends of the locking member 23 (upper end in the figure).
Is formed with a locking claw 23a. As shown in FIG. 3, the locking claw 23a of the locking member 23 can be locked in the claw locking hole 12a of the lid 12 when the locking member 23 is in a substantially vertical position. .

In such a lock release device 21, since only the fixed portion 24 is fixed to the cabinet 14 and all other portions are movable portions, the fixed portion 24 is securely fixed to the cabinet 14 so that no wobble occurs. 14 must be fixed.

As shown in FIG. 3, the arm members 25, 26
The arm member 27 extends in a substantially horizontal direction substantially perpendicular to the right vertical surface of the fixing portion 24 in the figure, and the arm member 27 also extends in the same direction, that is, in a direction parallel to the arm members 25 and 26. The connecting arm 30 extends in a substantially vertical direction parallel to the right vertical surface of the fixing portion 24 in the drawing. For this reason, FIG.
, The fixing portion 24, the arm members 25 and 26, the arm member 27, and the connecting arm 30 constitute the lock release device 21 so as to form a rectangle.

Hereinafter, such a lock release device 2 will be described.
The method of using No. 1 will be described. First, when the operation button 29 of the CD player 10 in the state shown in FIG. 2 is pressed down with a finger, the lock release device 21 is deformed as shown in FIG. As shown in FIG. 7, the cover 1 of the CD player 10 is removed from the hole 12a.
2 begins to open. When the lid 12 is completely opened and the finger is released from the operation button 29, the lock release device 21 returns to its original rectangular shape as shown in FIG. 8 by its elastic restoring force.

FIG. 9 is a view showing the lock operation release device 21 when the operation button 29 of the lock operation release device 21 is depressed and deformed. That is, the operation button 2
When the button 9 is depressed, the portion between the hinge portions 25a, 26a and the hinge portions 25b, 26b of the arm members 25, 26 is tilted, and the tip side thereof is reduced by the amount that the operation button 29 is lowered.
Lower by t.

The hinge portions 25b of the arm members 25, 26,
The portion from 26b to the tip is hinged 25a, 26
a and the hinge portions 25b and 26b are vertically opposed to each other, and the arm members 25 and 26 and the arm member 2
Since 7 constitutes a part of the same rectangle, it is kept horizontal by the link action of the hinge portion.

Therefore, the hinge portion 2 of the arm member 27
The portion between 7a and 27b is also inclined, and the tip side is lowered by Δt as the operation button 29 is lowered, and the hinge portion 27b
The portion from to the tip of the arm member 27 is also kept horizontal as in the case of the arm members 25 and 26.

At this time, as the hinges 25a and 26a are farther from the operation button 29, the force required to press down the operation button 29 becomes smaller. In order to push down the horizontal plate 32 while keeping it horizontal, the hinges 25b and 26a are required. 2
6b must be located closer to the fixed portion 24 than the operation button 29 is.

The arm member 27 is connected to the arm member 25 on the fixed portion 24 side and the connecting arm 30 having the same length as the distance between the base ends of the arm members 27 in FIG. It is connected to the arm members 25 and 26, and between the hinge portions 25a and 25b and the hinge portions 27a and 27b.
Since the distances between b are equal, the pushing distance of the arm members 25 and 26 and the pushing distance of the arm member 27 have the same value Δt.

The distance between the hinges 25a and 26a and the hinges 25b and 26b, and the distance between the hinges 27a and 27b
7b, the shorter the distance, the lower the pushing distance.
If t is set to be the same, the inclination angle of the arm members 25 and 26 and the arm member 27 between the hinges at the short distance becomes large.

By tilting the hinges 27a and 27b of the arm member 27 in this manner, the hinge 27
The locking member 23 erected integrally with the arm member 27 between the a and 27b can be inclined, and the locking of the locking claw portion 23a to the claw locking hole 12a of the lid 12 is released. Can be canceled. The closer the hinge portion 27a is to the locking member 23, the smaller the vertical movement distance of the locking claw portion 23a.
The inclination between a and 27b can be efficiently transmitted to the locking claw 23a.

As described above, according to the lock operation releasing device 21 of the present embodiment, since it is integrally formed as a whole, the number of parts and the number of assembly steps can be reduced.

FIG. 10 is a diagram showing a lock release device 31 according to a second embodiment of the present invention. In the first embodiment, two hinge portions 27a and 27b are formed on the arm member 27, and the distal end of the arm member 27 and the connection arm 30 are integrally connected. On the other hand, in the second embodiment, the arm member 2
8, only one hinge portion 28a is formed closer to the fixed portion 24 than the locking member 23, and the distal end portion of the arm member 28 and the lower end portion of the connecting arm 30 are separated from each other so that they can move relative to each other. It has a possible structure.

Therefore, the distortion generated in the lock release device 31 when the operation button 29 is depressed is replaced with the arm member 28 and the connecting arm 30 instead of the hinge portion.
Can be absorbed by relatively moving at the separating portion S between them.

FIG. 11 is a view showing a lock release device 41 according to a third embodiment of the present invention. In the third embodiment, the arm members 25 and 26 included in the lock release device 21 of the first embodiment are removed, and the upper end of the connection arm 30 is connected to the cabinet 14.
Is depressed by an operation button 39 of another component provided on the arm member 34, the hinge portion 34 a on the fixed portion 24 side is bent from the locking member 23 of the arm member 34, and the locking member 23 is inclined. According to the third embodiment, since the molding is simple, it is possible to reduce the cost of the mold, reduce the cost of parts, and reduce the number of design steps.

In the above embodiment, the case where the present invention is applied to the CD player 10 has been described. However, it is not necessary to limit the present invention to any other type such as a portable AV device such as a DVD player. It can also be applied to electronic devices.

In the above-described embodiment, the present invention has been described for the case where the opening and closing of the lid 12 of the CD player 10 is locked. However, the present invention is not limited to the lid, and the present invention may be applied to doors and any other parts. Can be applied.

Although the embodiments of the present invention have been specifically described above, the present invention is not limited to the above-described embodiments, and various other modifications may be made based on the technical concept of the present invention. Can be changed.

[0036]

As described above, according to the present invention,
It is possible to provide a lock release device having a small number of parts and assembling steps and a simple shape, and a method of using the same.

[Brief description of the drawings]

FIG. 1 is a partially broken plan view showing a CD player 10 using a lock release device 21 according to a first embodiment of the present invention.

FIG. 2 is a partially cutaway side view of the CD player 10 in FIG.

FIG. 3 is an enlarged side view of the lock release device 21 in FIG. 2;

FIG. 4 is a perspective view of the lock release device 21 in FIG. 3;

5 is a perspective view of the lock release device 21 as viewed from a different angle from FIG. 4;

FIG. 6 is a side view of the lock operation release device 21 for explaining the operation of the lock operation release device 21 when it is deformed.

FIG. 7 is a partially cutaway side view showing the opening of the lid 12 of the CD player 10;

FIG. 8 is a partially cutaway side view showing a state where the cover 12 of the CD player 10 has been completely opened.

FIG. 9 is a side view of the lock operation release device 21 for explaining the operation of the lock operation release device 21 when it is deformed.

FIG. 10 is a side view of a lock operation release device 31 according to a second embodiment of the present invention.

FIG. 11 is a side view of a lock operation release device 41 according to a third embodiment of the present invention.

FIG. 12 is a sectional side view showing a conventional lock release device 100.

FIG. 13 is a sectional side view showing the operation of the conventional lock operation release device 100.

FIG. 14 is a cross-sectional side view showing another conventional lock release device 120.

FIG. 15 is a sectional side view showing the operation of another conventional lock release device 120.

[Explanation of symbols]

10 CD player, 12 lid, 12a claw locking hole,
14 cabinet, 16, 17 rotary shaft, 19 torsion coil spring, 21 lock release device, 23 locking member, 23a locking claw portion, 24 fixing portion, 25, 26, 2
7, 28, 34 ... arm members, 25a, 25b, 26
a, 26b, 27a, 27b, 28a, 34a: hinge portion, 29: operation button, 30: connecting arm, 31: lock release device, 32: horizontal plate portion, 39: operation button,
100: lock release device, 102: lid, 102a ...
Locking hole, 104: locking member, 104a: locking claw portion, 10
4b: cam surface, 106: claw holder, 108: spring, 1
DESCRIPTION OF SYMBOLS 10 ... operation button, 112 ... operating part, 112a ... cam surface, 120 ... lock operation release device, 122 ... locking claw member, 122a ... spring part, 122c ... operating part, 124 ... stationary member, 124a ... recessed part, 126 ... Mating support member

Claims (3)

[Claims] An arm member having a base end portion fixed to a fixed portion and having at least one hinge portion in a lengthwise direction; and a distal end portion side of the arm member with respect to a hinge portion on the base end side of the arm member. A locking member having a locking claw portion formed on its own end portion to lock with a mating member, and an operation portion operated to apply force to the tip portion of the arm member. A lock release device. 2. At least one arm member parallel to the arm member is provided, and this arm member also has a hinge part in the middle of the length direction, and the hinge parts of all arm members are deformed. The lock release device according to claim 1, wherein the locking member is inclined. 3. An arm member having a base end portion fixed to a fixing portion and having at least one hinge portion in a longitudinal direction thereof, and a distal end portion side of the arm member with respect to a hinge portion on the base end side of the arm member. A locking member having a locking claw formed upright at its distal end to lock with a mating member at its own end, and an operating portion operated to apply force to the distal end of the arm member Using a release device, by operating the operating portion to apply a force to the distal end of the arm member, the hinge portion of the arm member is deformed and the arm member on the distal end side from the hinge portion on the proximal end side Wherein the locking claw part is disengaged from the counterpart member to release the lock operation by tilting the locking member integrally with the tilted arm member. How to use