JP3671510B2 - Lid locking device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lid locking device. Specifically, a spring is integrally provided on a movable body provided with a latching portion for latching the lid, and by pushing up the lid upward using a force that returns after the movable body is bent, The present invention relates to a lid locking device that eliminates the need for parts, reduces costs by reducing the number of parts, and simplifies assembly work.
[0002]
[Prior art]
For example, a portable cassette tape recorder is provided with a lid 16 for preventing a recording medium such as a cassette tape from dropping out of the storage chamber 14 as shown in FIG. In general, the lid 16 is openable and closable by connecting the rear end of the lid 16 to a cabinet 13 or the like of the device with a hinge 80, and is always urged in the opening direction by a spring 76 hooked on the rear end. . Further, a locking device 70 is provided at the front end of the lid 16 and the cabinet 13 so that the closed lid 16 does not open carelessly.
[0003]
The locking device 70 includes a latching claw 71 slidably attached to the front end portion of the cabinet 13 and a metal spring 75 that biases the latching claw 71. When the lid 16 is closed, the latching claw 71 biased by the spring 75 is latched on the latched piece 72 provided on the lid 16, and the lid 16 is locked.
[0004]
When the lid 16 is opened, the latching claw 71 is slid by moving a slide switch (not shown). As a result, the hooking claw 71 is detached from the hooked piece 72, and the cover 16 is opened upward by the biasing force of the spring 76.
[0005]
[Problems to be solved by the invention]
However, the conventional locking device 70 shown in FIG. 14 requires a spring 75 for causing the latching claw 71 to be latched 72 and a spring 76 for biasing the lid in the opening direction. is there. For this reason, the number of parts is increased, resulting in an increase in manufacturing cost. Further, in the case of a small device such as a portable cassette tape recorder, the work of attaching small parts such as springs 75 and 76 during assembly is complicated.
[0006]
Therefore, the present invention solves the above-described problems, and provides a lid locking device that can reduce the number of parts and that can be easily attached.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, in the present invention, in a lid locking device for locking the lid of the storage body, a flexible plastic movable body slidably attached to the storage body, and this A latch part for latching the lid provided on the movable body, an arcuate biasing means that is integrally formed with the movable body and biases the movable body in the direction of latching the lid, and provided on the lid. , with the movement of the locking releasing direction of the moving body to deflect the moving member, a moving body bending means for restoring the mobile deflected when hooking the hook member is released, provided on the lid And a contact portion for urging the lid upward when the moving body is restored.
According to the present invention, in a lid locking device for locking the lid of the storage body, a flexible plastic movable body slidably attached to the storage body, and the movable body is provided. A latching portion for latching the lid, an arcuate biasing means that is integrally formed with the movable body and biases the movable body in the direction of latching the lid, and provided on the storage body. A moving body bending means for bending the moving body as it moves in the release direction and restoring the bent moving body when the latching portion is released, and a lid, are provided on the lid to restore the moving body. And a contact portion for urging the lid upward.
[0008]
When the lid is closed, the lid is hooked on the hooking portion of the moving body. The slide switch is operated from this state to slide the moving body against the urging force of the urging means. As a result, the entire moving body is bent by the moving body bending means. When the latching portion is released, the moving body is restored to its original state, but the biasing force at this time is transmitted to the lid through the contact portion, and the lid is pushed upward.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of a lid locking device according to the present invention will be described in detail with reference to the drawings.
[0010]
FIG. 1 shows a configuration of a portable cassette tape recorder 10 to which a locking device according to a first embodiment of the present invention is applied. The cassette tape recorder 10 is a so-called headphone stereo that can read recorded information on a cassette tape and listen to the information through headphones (not shown). The cassette tape is stored in a storage chamber 14 formed inside a cabinet 13 that is a storage body. In the storage chamber 14, a cassette tape regeneration process or a winding process is performed.
[0011]
A lid 16 that opens and closes the storage chamber 14 is attached to the upper side of the cabinet 13. The lid 16 has a rectangular plate shape, and its base end portion 16a is attached to the cabinet with a hinge (not shown), and the lid 16 pivots up and down as indicated by an arrow A in the drawing to accommodate the storage chamber. 14 can be opened and closed.
[0012]
A locking device 20 according to the present invention for locking the hooked piece 18 of the closed lid 16 is disposed at the front end 13 b of the cabinet 13. The locking device 20 is operated by a slide switch 22 slidably attached to the front end portion 13b. The lock device 20 not only locks the lid 16 but also has a function of pushing the lid 16 upward when the lid 16 is opened, and an arc spring 37 (FIG. 2) which is a biasing means for maintaining the locked state. Are integrally formed.
[0013]
On the other hand, a substantially L-shaped hooked piece 18 and a plate-like pressed piece 19 in the vicinity thereof are formed on the lower surface of the tip 16b of the lid 16. The hooked piece 18 is hooked to the locking device 20, and the pressed piece 19 serves as a moving body bending means for bending a slider (moving body) 21 described later, and when the lid 16 is opened. The contact portion is pressed by the locking device 20. That is, in this embodiment, the pressed piece 19 serves both as a moving body bending means and a contact portion.
[0014]
Note that an inclined surface 18a is formed at one corner of the lower edge of the hooked piece 18, and an inclined surface 19a is formed at the corner of the lower edge of the pressed piece 19. The inclined surfaces 18a and 19a are surfaces on which the latching claws 36 (FIG. 3) and the protrusions 42 (FIG. 3) of the locking device 20 are in sliding contact.
[0015]
FIG. 2 shows details of the locking device 20. In the locking device 20, a plastic slider (moving body) 21 having a latching portion 36 for latching the lid 16 inside the cabinet 13 and a projecting portion 42 for pushing up the lid 16 is slidable in the horizontal direction in the figure. Attached to.
[0016]
As shown in FIG. 3, the slider 21 has a flat plate-like first sliding contact plate portion 31 and a second sliding contact plate portion 32 that are in sliding contact with the inner surface of the cabinet 13, so that these are arranged on the same plane. The neck portion 33 is integrally connected. The neck portion 33 is formed with a narrow width so as to have flexibility. The restoring force due to this bending is used as a pressing force for pressing the lid 16 upward as will be described later.
[0017]
The first slidable contact plate portion 31 is formed in a substantially rectangular shape, and a hooking claw 36 for suspending the hooked piece 18 of the lid 16 is provided at the center side edge of the first slidable contact plate portion 31 side. Formed towards. The hooking claw 36 is formed in a claw shape, and a gentle inclined surface 36a for guiding the sliding contact of the hooked piece 18 (FIG. 1) is formed on the top surface of the tip. Further, the base portion of the hooking claw 36 is a reinforcing portion 38 (FIG. 4) formed with an increased thickness. This is because the locking claw 36 secures sufficient strength for repeatedly engaging and releasing.
[0018]
An arc spring 37 that is an urging means for the slider 21 is integrally formed at the right end of the first sliding contact plate portion 31. The arc spring 37 is formed in a semicircular arc shape that is thin in a substantially S shape. The first arc portion 37a close to the first sliding contact plate portion 31 is set to have a relatively large diameter and biases the slider 21 itself. Further, the second arc portion 37 b close to the tip of the arc spring 37 is set to have a relatively small diameter and is used for hanging on the cabinet 13. Thus, by forming the arc-shaped spring 37 integrally, a spring as a separate part becomes unnecessary.
[0019]
The second sliding contact plate portion 32 includes a wide main plate portion 32a located closer to the center and a narrow slide guide portion 32b located on the left end side. An oblong hole 41 is provided in the main plate portion 32a along the sliding direction.
[0020]
A protrusion 42 that contacts the pressed piece 19 (FIG. 1) is formed on the left edge of the oval hole 41. The protruding portion 42 is formed in a trapezoidal shape, and the corner of the protruding portion 42 on the oval hole 41 side (the side in contact with the pressed piece 19 described above) is an inclined surface that is in sliding contact with the pressed piece 19.
[0021]
A stopper 43 for restricting excessive sliding of the slider 21 is formed on the edge of the main plate portion 32 a on the side different from the slide switch 22.
[0022]
A connecting plate portion 34 that is inclined downward is formed at the edge of the first sliding contact plate portion 31, the second sliding contact plate portion 32, and the neck portion 33 and on the side facing the slide switch 22. The distal end of the connecting plate portion 34 is refracted so as to be horizontal, and two engagement grooves 46 for connecting to the slide switch 22 are provided at the edge on the distal end side.
[0023]
2 and 4, the slider 21 is slidably attached to the back surface of the cabinet 13 by three claw-shaped holding pieces 51 provided on the back surface side of the front end portion 13 b of the cabinet 13. A connected piece 52 erected on the back surface of the slide switch 22 engages with an engaging groove 46 (FIG. 3) of the connecting plate portion 34 of the slider 34. As a result, the slider 21 slides in conjunction with the slide of the slide switch 22 as shown in FIGS.
[0024]
Square holes 26 and 27 are provided in the cabinet 13 and enter into the hooking claws 36 and the protrusions 42 of the slider 21, respectively. The square holes 26 and 27 are set to have a size and a shape corresponding to the movement range of the latching claw 36 and the protrusion 42 when the slider 21 slides.
[0025]
A cylindrical pin 55 provided on the back surface of the cabinet 13 is inserted into the oval hole 41 of the slider 21, and the slider 21 is slidably attached in the left-right direction by this pin 55. In addition, a plate-shaped guide plate portion 53 is erected along the slide direction on the back surface of the cabinet 13, and this contacts the side surface of the slide guide portion 32 b of the slider 21 to guide the slide of the slider 21.
[0026]
The second arc portion 37 b of the arc-shaped spring 37 is hooked on a column-shaped hooking protrusion 54 provided on the back surface of the cabinet 13. The slider 21 is always urged leftward in the figure by the arc spring 37.
[0027]
The operation of the locking device 20 configured as described above will be described below. In the state where the lid 16 is closed, the latching piece 18 of the lid 16 is inserted through the square hole 26 of the cabinet 13 and is latched by the latching claw 36 of the slider 21 as shown in FIGS. ing. Further, the pressed piece 19 of the lid 16 is positioned on the right side of the protruding portion 42 of the slider 21 through the square hole 27. The slider 21 is always urged to the left (latching direction) by the arc-shaped spring 37, but is restricted so that the stopper 43 of the slider 21 contacts the side surface of the holding piece 51 and the slider 21 does not move any further. Is done.
[0028]
From this state, the slide switch 22 is slid in the right direction in the drawing (the direction of releasing the latch) against the urging force of the arc spring 37. As a result, as shown in FIG. 7, the slider 21 slides in the right direction, the projecting portion 42 slides along the inclined surface 19a of the pressed piece 19, and the slider 21 itself is elastically deformed by the neck portion 33 (FIG. 3). The second sliding contact plate portion 32 is separated from the lower surface of the cabinet 13.
[0029]
When the slider 21 is sufficiently bent, the hooking claw 36 is detached from the hooked piece 18 and the slider 21 is restored as shown in FIG. The return force of the slider 21 at this time is transmitted to the pressed piece 19 of the lid 16 by the projecting portion 42, the lid 16 is pushed up, the pressed piece 19 rides on the upper surface of the projecting portion 42, and the open state of the lid 16 is maintained. .
[0030]
When the slide switch 22 is released, the slider 21 returns to the position before the slide start by the biasing force of the arc spring 37, the inclined surface 36a of the latching claw 36 and the inclined surface 18a are in sliding contact, and the inclined surface 18a It rides on the upper surface of the inclined surface 36a. This further opens the lid 16. When the user opens the lid 16 with a finger from this state, the lid 16 can be completely opened as shown in FIG.
[0031]
When closing the lid 16, it is only necessary to press the lid 16 from above in the state of FIG. As a result, the hooking claw 36 is pressed rightward by the inclined surface 18 a of the hooked piece 18, and the slider 21 slides rightward against the urging force of the arc spring 37. Then, the latching piece 18 is latched by the latching claw 36.
[0032]
As described above, in the locking device 20 according to the present invention, the arc spring 37, which is an urging means for the slider 21, is provided integrally with the slider 21 itself. Therefore, the spring 75 that has been conventionally required as a separate part (FIG. 14). ) Becomes unnecessary.
[0033]
Further, since the return force due to the bending of the slider 21 is transmitted as a force for pushing up the lid 16, the spring 76 (FIG. 14) conventionally required as a separate part for urging the lid 16 in the opening direction is unnecessary. It becomes. By reducing the number of parts in this way, costs can be reduced and assembly work can be simplified.
[0034]
Next, FIG. 10 shows a configuration of a lock device 90 according to the second embodiment of the present invention. In this locking device 90, the moving body bending means and the contact portion are provided separately and independently. In addition, the same code | symbol was attached | subjected to the part similar to the above-mentioned, and detailed description was abbreviate | omitted.
[0035]
In this locking device 90, a slider bending portion 83, which is a triangular protrusion, is provided on the lower surface of the cabinet 13 and on the left edge of the square hole 27 in the drawing. On the other hand, the slider 81 is provided with a relief hole 82 located on the left side of the oval hole 41. The size of the escape hole 82 is set so that the slider bending portion 83 can be inserted.
[0036]
Further, an inclined surface 82 a that is continuous from the upper surface side of the slider 81 is formed at the right edge of the escape hole 82. This is for guiding the slider bending portion 83 inserted into the escape hole 82 so that it can easily return to the oval hole 41 when the slider 81 slides in the right direction, as will be described later.
[0037]
The pressed piece 89 is formed in a substantially rectangular shape and functions as a contact portion that transmits the restoring force of the slider 81 to the lid 16. When the lid 16 is locked, the slider bending portion 83 and the pressed piece 89 are inserted into the oval hole 41.
[0038]
From this state, the slide switch 22 (FIG. 1) is slid in the right direction in the figure (the direction of releasing the latch) against the urging force of the arc spring 37. As a result, as shown in FIG. 11, the slider 81 slides in the right direction, the slider 81 bends along the inclined surface of the slider bending portion 83, and the second sliding contact plate portion 32 moves away from the lower surface of the cabinet 13. At this time, the slider bending portion 83 and the pressed piece 89 come out of the oblong hole 41.
[0039]
When the slider 81 is sufficiently bent, the hooking claw 36 is detached from the hooked piece 18, but the slider 81 remains in the bent state because the slider bending portion 83 is still in contact with the slider 81. It is. When the slider 81 is further moved in the right direction, the slider bending portion 83 is inserted into the escape hole 82 as shown in FIG. 12, and the slider 81 is restored. At this time, the restoring force of the slider 81 is transmitted to the lid 16 by the pressed piece 89 of the lid 16 and pushes the lid 16 upward.
[0040]
When the slide switch 22 (FIG. 1) is released here, the slider 81 returns to the position before the start of sliding by the biasing force of the arc spring 37 as shown in FIG. At this time, the slider bent portion 83 is guided into the inclined surface 82 a of the escape hole 82 and inserted into the oval hole 41.
[0041]
At this time, the inclined surface 18a of the latching piece 18 abuts on the inclined surface 36a of the latching claw 36, and the lid 16 is supported in a lifted state. When the user opens the lid 16 with a finger from this state, the lid 16 can be completely opened as shown in FIG.
[0042]
Further, it is only necessary to press the lid 16 from above from the state of FIG. As a result, the hooking claw 36 is pressed rightward by the inclined surface 18 a of the hooked piece 18. At this time, the slider 81 bends along the inclined surface of the slider bending portion 83 and is inserted into the escape hole 82.
[0043]
Here, when the latching claw 36 is latched by the latching piece 18, the pressing force by the latching claw 36 disappears, and the slider 81 moves to the left by the biasing force of the arc spring 37 to return to the original position. Return to the position. At this time, the slider bent portion 83 is guided into the inclined surface 82 a of the escape hole 82 and inserted into the oval hole 41.
[0044]
As described above, the slider bending portion 83 that is the moving body bending means and the pressed piece 89 that is the contact portion may be provided separately and independently.
[0045]
【The invention's effect】
As described above, in the present invention, in the lid locking device for locking the lid of the storage body, a flexible plastic movable body slidably attached to the storage body, and the movable body Provided on the lid, the arcuate biasing means that is integrally formed with the movable body and biases the movable body in the direction of latching the lid, and the lid or the storage body. is, deflected the moving body moves in the locking releasing direction of the moving body, the moving body bending means for restoring the mobile deflected when hooking the hook member is released, provided on the lid And a contact portion for urging the lid upward when the moving body is restored.
[0046]
Therefore, according to the present invention, since the urging means is provided integrally with the moving body, there is an effect that a spring as a separate part for hooking the latching portion becomes unnecessary.
[0047]
In addition, since the return force due to the bending of the moving body is used as a force to push up the lid, a spring, which is a separate part for urging the lid in the opening direction, is unnecessary, reducing the number of parts and reducing costs. There are effects such as easy assembly work.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a configuration of a cassette tape recorder 10 to which a locking device 20 according to the present invention is applied.
FIG. 2 is a top view showing the configuration of the locking device 20;
3 is a perspective view showing the shape of a slider 21. FIG.
4 is a side sectional view showing the connection between the locking device 20 and the slide switch 22. FIG.
FIG. 5 is a top view showing a state in which a slider 21 is slid.
6 is an unlocking operation (1/4) of the locking device 20. FIG.
7 is an unlocking operation (2/4) of the locking device 20. FIG.
FIG. 8 is an unlocking operation (3/4) of the locking device 20;
9 is an unlocking operation (4/4) of the locking device 20. FIG.
FIG. 10 shows the unlocking operation (1/4) of the locking device 90 according to the second embodiment of the present invention.
FIG. 11 shows the unlocking operation (2/4) of the locking device 90;
12 is an unlocking operation (3/4) of the locking device 90. FIG.
FIG. 13 shows the unlocking operation (4/4) of the locking device 90;
14 is a perspective view showing a configuration of a conventional lock device 70. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Cassette tape recorder 14 Storage chamber 16 Lid | cover 18 Locking piece 19,89 Pressed piece 20,90 Locking device 21,81 Slider 22 Slide switch 31 1st sliding contact plate part 32 2nd sliding contact plate part 33 Neck part 34 Connecting plate portion 37 Arc spring 36 Claw 42 for latching 42 Protruding portion 82 Escape hole 83 Slider bending portion

Claims (3)

In the lid locking device for locking the lid of the storage body,
A flexible plastic movable body slidably attached to the storage body;
A latching section for latching the lid provided on the movable body;
An arcuate biasing means that is integrally formed with the movable body and biases the movable body in a direction to latch the lid;
A movable body that is provided on the lid and that bends the movable body as the movable body moves in the latch release direction and restores the movable body that is bent when the latch of the latch portion is released. Bending means;
A contact portion provided on the lid for biasing the lid upward when the moving body is restored;
A lid locking device comprising: The mobile flexing means, the locking device of the cover according to claim 1, characterized in that also serves as the contact portion. In the lid locking device for locking the lid of the storage body,
A flexible plastic movable body slidably attached to the storage body;
A latching section for latching the lid provided on the movable body;
An arcuate biasing means that is integrally formed with the movable body and biases the movable body in a direction to latch the lid;
A movement that is provided in the storage body and bends the moving body as the moving body moves in the latch release direction, and restores the bent mobile body when the latch of the latch portion is released. Body bending means;
A contact portion provided on the lid for biasing the lid upward when the moving body is restored;
A lid locking device comprising:

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