JPH0948451A - Apparatus for locking lid-plate of case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate elimination of a restoring spring member and a hinge part of a locking piece and simplification in assembly by integrally forming a restoring elastic piece and a support piece having protrusion with the locking piece for maintaining a closed lid. SOLUTION: In manufacturing an apparatus for maintaining a lid plate 4 pivoted to a case 1 with a hinge 2 as the center by elastic force or its own gravity in a closed state, a support piece protrusion 7 of a locking piece is engaged with recesses 5a of pivot parts 5 which are provided as a pair along a side in the case 1 against elastic force of a support piece 7a of the protrusion 7 to have the locking piece 6 pivoted to the case 1. In addition, a locking part of the locking piece 6 is used to press a free end 4a of the lid plate 4 which tends to open with elastic force of an elastic piece 6a of the locking piece 6 against a stress for opening the lid to allow the lid to be kept closed. Then by rotatably displacing the locking piece 6 against elastic force of the elastic piece 6a by external force with a pivoting part 5 as a fulcrum, the locking part of the locking piece 6 can be removed from the free end 4a of the lid plate to allow the lid to open.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid locking device for a case suitable for application to a sun visor case in a driver's seat of a moving body such as an automobile or a tabletop cigarette case in a reception room.

[0002]

2. Description of the Related Art Conventionally, there is a lid plate locking device of this type in which a lid plate, which is always open, is pressed against a case by a lock piece to keep the lid closed.

[0003]

In the above-mentioned prior art, the lock piece is unlocked or locked by operating the lock piece against its return spring, so that the lock piece is pivoted on the case. A hinge part and a return spring for supporting it are required separately, and it is economically disadvantageous because the cost of parts such as article management and assembling workability is required, which is economically disadvantageous. In particular, a coil spring is used for the return spring. However, there is a problem in that the spring is liable to fly when it is assembled, and automatic assembly is impossible. Further, in the case of using the leaf spring, there is a problem that a fine attachment work such as screw fixing is required.

According to the present invention, in order to eliminate the above-mentioned problems, the spring member for returning the lock piece is formed by integrally forming the return bullet piece and the supporting piece with the protrusion on the lock piece for maintaining the lid. It is an object of the present invention to eliminate the need for a hinge part and a hinge part, and to facilitate simplification of assembly.

[0005]

DISCLOSURE OF THE INVENTION The above-mentioned object of the present invention is to provide a lid plate, which is pivoted around the hinge so as to always open with the elastic force of a spring or self-gravity, with respect to the hinge. In a device for maintaining a closed lid with respect to a case, the protrusion of a lock piece is inserted into a recessed portion of a pivotal support portion provided along the one side of the case against the elastic force of the support piece to lock the lock piece. While pivoting to the case, it is possible to maintain the lid closed by pressing the free end of the lid plate having the tendency to open the lid with the elastic force of the bullet piece of the lock piece against the lid opening stress at the lock portion of the lock piece.
Further, by rotating the lock piece against the elastic force of the bullet piece with the pivotal support portion as a fulcrum by an external force, the lock portion of the lock piece can be removed from the free end of the cover plate to enable the lid to be opened. I was able to achieve it.

[0006]

[Function] With respect to the case, the lid plate is always centered on the hinge by the elasticity of the spring or the self-gravitational force so as to always open the lid.
Can pivot about the case. And, the free end of the lid plate which tends to open the lid is resisted against the opening lid stress by the locking portion of the bifurcated locking piece pivotally supported by the pivotal portion opposite to the one side in the case and the elastic force of the locking piece bullet is exerted. You can press down with to keep the lid closed.

Further, the lock piece is removed from the free end of the cover plate by removing the lock portion of the lock piece from the free end of the lid plate by displacing the lock piece against the elastic force of an elastic piece such as its foot and pivotally displacing the lock piece with the pivotal support portion as a fulcrum. The plate can be opened by the opening stress. Then, the lock piece is inserted into the recess of the pivotal support portion opposite to the inside of the case by engaging the support piece projection with the snap of the lock piece against the elastic force of the support piece.
Can be pivoted with a single work.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The basic structure of the present invention is, as shown in FIGS. 1 and 6, provided on a rear side of a case 1 centered on a hinge 2 with respect to a case 1 made of a plastic plate. By the elastic force of the leaf spring 3 or the self-gravity, the lid plate 4 which is pivoted so as to always open the lid is made against the case 1 to keep the lid closed. First, as shown in FIG. 1 and FIG. 2, the hinge 2 such as the pivot boss of the cover plate that is provided to face the rear inner surface of the case 1 is provided with the rear projecting piece 4A of the cover plate 4 and the hole 4B. When the protruding piece 4A is bent inward as shown in FIG. 2 and engaged as shown in FIG. 3, the protruding piece 4A returns to its original state and the cover plate 4 can be pivotally supported on the rear side of the case 1. In addition,
The spring 3 elastically contacts the rear side 4C of the cover plate as shown in FIG.

Next, in the case 1 along its front side, as shown in FIG.
As shown in FIG. 5, the support piece projection 7 of the bifurcated lock piece 6 (FIG. 4) formed in the recess 5a of the pivotal support section 5 such as the projection piece facing each other as shown in FIG. While being bent inward as shown in (a), the locking piece 6 is pivotally supported on the case 1 by engaging with a snap as shown in (b) of the same figure. The front edge of the lid plate 4 having the tendency to open the lid is locked by the lock portion 8 of the lock piece 6 in the closed position as shown in FIG. 6 due to the elastic force of the bullet piece 6a of the lock piece 6 against the case projection 1a. The equal free end 4a is pressed against the opening lid stress as shown in FIG. 6 to maintain the lid closed.

Further, as shown in FIG. 7, while the lock piece 6 is flexed against the elastic force of the bullet piece 6a, the lock piece 6 is pivotally displaced with the pivotal support portion 5 as a fulcrum, so that the lid plate tending to open is opened. By removing the lock portion 8 of the lock piece 6 from the end 4a so that the lid can be opened as shown in FIG. 7, the lid plate locking device for a case according to the present invention can be constructed.

A hinge boss is provided in place of the hole 4B of the cover plate projecting piece 4A, and the hinge boss is inserted into a hinge recess or a hinge hole formed on the inner surface of the case, and the cover plate 4 is inserted into the case 1. The plate-shaped spring 3 may be a metal plate spring protruding from the same position in the case 1 or at the same effect point of the cover plate 4 by screwing or the like.

Further, in each of the drawings, the reference numeral 1A indicates a closing lid positioning projection, and the reference numeral 1C indicates a projection inner surface of the case for positioning the projection 4D projecting from the rear side surface of the cover plate 4. The two protrusions formed on the
Between C and 1C, the lid plate side projection 4D when the lid is opened
As shown in FIG. 8, dropping against the elasticity of the protruding piece 4A,
By maintaining this state by the elasticity of the protruding piece 4A, the 90 ° open state of the cover plate 4 can be stabilized as shown in FIG.

Further, as in the case where the present invention is used as a sun visor case for driving safety of a moving body such as an automobile, the case 1 is arranged vertically and obliquely, and the cover plate 4 tends to always open due to its own gravity. When used as described above, the lid opening spring 2 provided on the case 1 or the lid plate 4 is naturally unnecessary. Then, the lock piece 6 is inserted into the recess 5a of the pivot portion 5 in the case 1 against the elastic force of the lock piece support piece 7a with a snap, so that the lock piece 6 can be ejected to the case 1 in one shot. The lock spring 6 can be pivotally supported, and the return spring of the lock piece 6 can be eliminated, including the hinge metal fitting for pivotally supporting the lock piece and its screwing.

Next, an example of use of the present invention will be described. With respect to the case 1, the lid plate 4 can be pivotally supported with respect to the case 1 by the elasticity of the spring 3 or the self-gravity around the hinge 2 so that the cover plate 4 always tends to open. Then, the free end 4 of the lid plate 4 having the tendency to open the lid is locked by the lock portion 8 of the bifurcated lock piece 6 pivotally supported by the pivot portion 5 opposite to the one side in the case 1.
It is possible to keep the lid closed as shown in FIG. 6 by pressing a against the opening stress.

Further, the lock piece 6 is rotatably displaced by an external force with the pivotal support portion 5 acting as a fulcrum against the self-elasticity of the bullet piece 6a, so that the lock portion of the lock piece 6 extends from the cover plate free end 4a. 8 is removed and the lid plate 4 is opened a little as shown in FIG. 7 due to the opening stress caused by the spring or gravity, after that, the lid plate 4 can be lifted with fingers and fully opened as shown in FIG. Thus, the lid plate 4 can be hung from the hinge 2 to open the lid.

Next, when closing the lid, when the lid plate 4 is closed with the hinge 2 as a fulcrum, the free end 4a of the lid plate 4 shows the upper oblique side of the lock portion 8 of the lock piece 6 which has been upright. 9
As shown in FIG. 9, the lock piece 6 slides down as shown in FIG. 9 against the elastic force of the bullet piece 6a, and then the lid plate free end 4a snaps into the lower portion of the lock portion 8 as shown in FIG. The lock piece 6 returns and the lid can be locked. In addition, the lock portion 8
Do not form the hypotenuse on the top of the
Alternatively, the lid may be flexed by fingers to close the lid against the elasticity of a, and the lock piece 6 may be self-restored to take the lid lock position shown in FIG.

【Example】

The pivot 5 and the recess 5a, which are oppositely provided in the case 1 along one side thereof, form a partial counterbore recess in the front plate of the case 1 so that they cannot be seen from the outside.
Then, a smaller recess 5a for pivotal support is formed on each side edge of the countersunk recess, and the support piece projection 7 of the lock piece 6 is inserted into the recess 5a against the elastic force of the support piece 7a. It is also possible to use the lock piece 6 by pivotally supporting it on the pivot portion of the front plate of the case 1 by the countersunk recess.

[0018]

Since the present invention is configured as described above, it has the following effects. The lock piece 6 according to the present invention is locked by simply inserting the support piece projection 7 of the lock piece 6 into the recess 5a of the pivotal support portion 5 in the case 1 against the elastic force of the support piece 7a of the lock piece with a snap. Since the piece 6 can be easily pivoted to the case 1, the hinge metal fitting for pivoting the lock piece and its screwing can be eliminated, and the lock piece 6 is integrally formed with the return bullet piece 6a. There is an industrial effect that a spring part for exclusive use for return can be eliminated, automatic assembly as a locking device can be promoted, and a large number of high-quality uniform products can be provided at low cost.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an example of an embodiment of the present invention.

FIG. 2 is a sectional view of the present invention during installation of a cover plate.

FIG. 3 is a sectional view of the present invention after the cover plate is attached.

FIG. 4 is a rear slope view of the lock piece according to the present invention.

FIG. 5 is a partial cross-sectional view of the lock piece according to the present invention during and after attachment of the lock piece.

FIG. 6 is a vertical sectional side view showing an example of an embodiment of the present invention.

FIG. 7 is a vertical sectional side view of the one shown in FIG. 6 in the middle of opening the lid.

8 is a side view of a longitudinal section of an essential part of the one shown in FIG. 7 after the lid is opened.

9 is a vertical sectional side view of a main part of FIG. 7 in the middle of closing the lid.

[Explanation of symbols]

 1 case 2 hinge 3 spring 4 cover plate 4a free end 5 pivotal support 5a recess 6 lock piece 6a bullet piece 7 support piece projection 7a support piece 8 lock section

Claims (1)

[Claims] 1. A lid plate 4 pivotally provided so as to always open with a resilient force of a spring 3 or self-gravity around a hinge 2 with respect to a case 1, keeps the lid closed with respect to the case 1. In the device, the support piece projection 7 of the lock piece 6 is inserted into the recess 5a of the pivotal support portion 5 that is oppositely provided in the case 1 along one side thereof to resist the elastic force of the support piece 7a. Is pivoted to the case 1, and the free end 4a of the lid plate 4 having the tendency to open the lid is pressed by the elastic force of the elastic piece 6a of the lock piece 6 against the opening stress by the lock portion 8 of the lock piece 6. By maintaining the closed lid, and by rotationally displacing the lock piece 6 against the elastic force of the elastic piece 6a with the pivotal support portion 5 as a fulcrum,
A cover plate locking device for a case, wherein the lock portion 8 of the lock piece 6 is removed from the free end 4a of the cover plate so that the cover can be opened.