JP3899882B2 - Open / close lid lock mechanism - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lock mechanism for an open / close lid that covers a storage portion such as a battery provided in a device case of an electric device.
[0002]
[Prior art]
Conventionally, the lock mechanism of the opening / closing lid that covers the storage part of the battery etc. provided in the device case of the electric device returns to its original position after the lock plate is once pushed and moved by the device case when the opening / closing lid is closed. As a result, the user can automatically close and close the open / close lid without moving the lock knob up and down.
[0003]
Hereinafter, such a conventional opening / closing lid locking mechanism will be described with reference to the drawings.
[0004]
FIG. 4 is a cross-sectional view of a conventional opening / closing lid locking mechanism as viewed from the side. A lock knob 12 is inserted into the rectangular opening 11 a of the opening / closing lid 11, a holding plate 13 is attached to the inside of the opening / closing lid 11, and a lock plate 14 slidable on the holding plate 13 is locked with a screw 15. To fix. The lock plate 14 and the lock knob 12 are urged in the direction of arrow A by a torsion spring (not shown). Reference numeral 17 denotes an electrical equipment case to which the opening / closing lid 11 is attached.
[0005]
In the conventional opening / closing lid locking mechanism configured as described above, when the opening / closing lid 11 is closed, the distal end portion 14a of the lock plate 14 hits the wall 17a of the device case 17 and is once pushed in the direction of the arrow B, and the rear wall After passing 17a, it returns to the direction of arrow A, and the front-end | tip part 14a is hooked on the wall 17a. As a result, the opening / closing lid 11 is locked and fixed to the device case 17.
[0006]
When opening the opening / closing lid 11, the lock knob 12 is pushed in the direction of arrow B, and the distal end portion 14 a of the lock plate 14 is slid so as to come off the wall 17 a of the device case 17, thereby opening the opening / closing lid 11.
[0007]
[Problems to be solved by the invention]
In the above-described conventional configuration, the front end portion 14a of the lock plate 14 is biased by the spring force so as to be caught on the wall 17a of the device case 17, so that the spring biasing force is generated by an impact when the electric device is dropped. Loses the impact force, the lock plate 14 moves in the direction of the arrow B, the tip end portion 14a thereof comes off from the wall 17a of the device case 17, and the opening / closing lid 11 opens. If the open / close lid is a battery lid, there is a problem that troubles such as a battery popping out in the storage portion occur.
[0008]
As a method for preventing this, there is a double locking mechanism, but the number of parts is large and the structure is complicated.
[0009]
SUMMARY OF THE INVENTION An object of the present invention is to provide a lock mechanism for an opening / closing lid that has an extremely simple component configuration, is easy to operate, and can withstand a drop impact.
[0010]
[Means for Solving the Problems]
In order to solve this problem, according to the present invention, the range in which the lock knob can be moved is made an L-shaped alphabet, and after closing the opening / closing lid, the lock knob is slid in a direction perpendicular to the direction of movement when opening and closing. It is composed.
[0011]
As a result, in the case of a drop impact in the opening / closing direction of the opening / closing lid, the movement of the lock knob is restricted and cannot move in the opening / closing direction, and the lock plate does not move. Further, in the case of a drop impact in a direction perpendicular to the opening / closing direction, the lock knob moves in that direction, but in this direction, the lock plate remains caught on the device case and does not move in the opening / closing direction. Therefore, the opening / closing lid does not open in any direction of the drop impact.
[0012]
In this way, by closing the open / close lid and the lock plate catching on the equipment case, the lock knob itself is slid in the direction perpendicular to the open / close direction, so that it is simple and easy to operate without using multiple knobs. A simple locking mechanism can be provided.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention provides
It is a lock mechanism having a lid body that covers a storage part such as a battery provided in an equipment case of an electrical equipment,
The lid is at least
An open / close lid attached to the device case so as to be openable and closable , having a guide portion which is an L-shaped opening ;
A lock plate for maintaining the closed state of the open / close lid;
A lock knob fixed to the lock plate across the opening / closing lid;
Are integrated into one unit,
When opening the lid,
Along with the L-shaped guide portion formed on the open / close lid, the lock knob is slid in a direction in which the lock plate is orthogonal to the lock direction and in a direction in which the lock plate is unlocked, thereby moving the lid body. An open / close lid locking mechanism characterized by an open configuration, with a simple component configuration without using multiple knobs, and by simply sliding the lock knob in a direction perpendicular to the locking direction Thus, it has an effect of preventing the opening / closing lid from being opened due to an impact when the electric device is dropped.
[0014]
The invention described in claim 2
An L-shaped guide portion is provided on the opening / closing lid or a component attached to the opening / closing lid,
The lid can be opened and closed by sliding a lock knob along the L-shaped guide portion in a direction in which the lock plate is orthogonal to the lock direction and in a direction in which the lock plate is locked or unlocked. The opening / closing lid locking mechanism according to claim 1 has an effect that the movement direction can be limited with a simple configuration having only a guide portion shape.
[0015]
The invention described in claim 3
The opening / closing lid locking mechanism according to claim 1, wherein a waterproof packing and a waterproof packing retainer plate are provided between the opening / closing lid and the lock plate, and a waterproof sheet is provided between the opening / closing lid and the lock knob . It has the effect of improving not only the drop impact but also the waterproofing effect.
[0016]
Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 3.
[0017]
(Embodiment 1)
FIG. 1 is a cross-sectional view of an opening / closing lid lock mechanism according to an embodiment of the present invention as viewed from the side, FIG. 2 is an exploded perspective view, and FIG. 3 is an operation explanatory view of a lock knob. In the figure, a torsion spring 3 for urging the lock knob 2 in the direction of arrow A is incorporated inside the opening / closing lid 1, and after placing a waterproof rubber packing 4, a waterproof rubber packing is provided by a rubber packing presser plate 5. 4 and the torsion spring 3 are pressed and fixed with screws 6. The opening / closing lid 1 is provided with an L-shaped opening 1 a, and the boss 2 a of the lock knob 2 is inserted into the opening 1 a with the waterproof sheet 7 and the opening / closing lid 1 interposed therebetween, and the lock plate 8 is fixed with screws 9. To do. The L-shaped width of the opening 1a is set to a minimum dimension that allows the boss 2a of the lock knob 2 to slide, and the lock knob 2 and the lock plate 8 are integrally formed along the L-shaped opening 1a. Can slide. Reference numeral 10 denotes a device case of an electric device to which the opening / closing lid 1 is attached.
[0018]
In the opening / closing lid locking mechanism of the present embodiment configured as described above, when the opening / closing lid 1 is closed, the tip 8a of the lock plate 8 hits the wall 10a of the device case 10 and is once pushed in the direction of arrow B. Then, after passing through the wall 10a, it returns to the direction of arrow A, and the tip 8a is caught by the wall 10a. Thereby, the opening / closing lid 1 is locked and fixed to the device case 10 (FIG. 3A). Further, the lock knob 2 is moved in the direction of arrow C (FIG. 3B).
[0019]
When the opening / closing lid 1 is opened, the lock knob 2 is pushed in the direction of arrow D and further slid in the direction of arrow B (FIG. 3C), so that the tip 8a of the lock plate 8 is removed from the wall 10a of the device case 10. The lid 1 can be opened.
[0020]
When the electric device is dropped, even if the urging force of the torsion spring 3 loses the impact force due to the impact, the boss portion 2a of the lock knob 2 abuts against the wall of the L-shaped opening 1a of the opening / closing lid 1. Therefore, it cannot move in the direction of arrow B. Accordingly, the lock plate 8 does not move, and the tip 8a is not detached from the wall 10a of the device case 10, so that the opening / closing lid 1 is not likely to be opened.
[0021]
Moreover, since the waterproof rubber packing 4 and the waterproof sheet 7 are incorporated in the opening / closing lid 1, not only the drop impact but also the waterproof effect is improved, so that the opening / closing lid lock suitable for electric equipment used in the suburbs and the like is provided. It is a mechanism.
[0022]
In the present embodiment, the L-shaped shape that guides the lock knob is used as the opening. However, the guide may be a protrusion or a recess.
[0023]
Moreover, the L-shape in which the lock knob is guided may be a T-shape that can move in either direction.
[0024]
【The invention's effect】
As described above, according to the present invention, the same lock knob is slid in a direction orthogonal to the lock direction, so that a simple component configuration without using a plurality of knobs and a simple slide operation can be performed. By performing the above, an advantageous effect of preventing the opening / closing lid from being opened by an impact when the electric device is dropped can be obtained.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an opening / closing lid locking mechanism according to an embodiment of the present invention as seen from the side surface. FIG. 2 is an exploded perspective view of the opening / closing lid locking mechanism according to an embodiment of the present invention. FIG. 4 is a sectional view of a conventional opening / closing lid lock mechanism as viewed from the side.
DESCRIPTION OF SYMBOLS 1 Opening / closing lid | cover 1a Opening part 2 Lock knob 2a Boss part 3 Torsion spring 4 Waterproof rubber packing 5 Rubber packing holding plate 7 Waterproof sheet 8 Lock plate 8a Tip part 10 Equipment case

Claims (3)

A lock mechanism having a lid body that covers a storage portion such as a battery provided in a device case of an electric device,
The lid is at least
An open / close lid attached to the device case so as to be openable and closable , having a guide portion which is an L-shaped opening ;
A lock plate for maintaining the closed state of the open / close lid;
A lock knob fixed to the lock plate across the opening / closing lid;
Are integrated into one unit,
When opening the lid,
By sliding the lock knob in a direction perpendicular to the lock direction of the lock plate and in a direction of unlocking the lock plate along the L-shaped guide portion formed in the open / close lid, the lid body is moved. An opening / closing lid locking mechanism characterized by being configured to open . The lid body has a torsion spring that urges the lock knob in a locking direction of the lock knob,
When closing the lid,
The tip of the lock plate hits the wall of the device case and is pushed back in the opposite direction to the biasing force of the torsion spring,
Further, when the tip of the lock plate passes the wall of the device case, the lock plate is returned to the direction in which the torsion spring is urged and is caught by the wall of the device case, and the opening / closing lid is locked to the device case. The opening / closing lid locking mechanism according to claim 1. 2. The opening / closing lid locking mechanism according to claim 1, wherein a waterproof packing and a waterproof packing pressing plate are provided between the opening / closing lid and the lock plate, and a waterproof sheet is provided between the opening / closing lid and the lock knob.

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