JPH0567053U - Electric device cover lock structure - Google Patents

Abstract

(57) [Abstract] [Purpose] A spring is inserted between the covers at the fitting part of the divided covers that form the appearance of the electric device, and when the covers are removed, the claw part is simply pushed. The upper cover is lifted up so that there is no fear of re-fitting even if the cover is not held, and the work of removing the mating at another place can be done easily. A notch hole 3a is provided near an end of a lower cover 2 of a cover that covers the outside of an electric device, and a claw 4a directed outward is provided near an inner end of an upper cover 1 corresponding to the hole 3a.
In the structure in which the projection 4 with a protrusion is integrally formed and the claw 4a of the projection is fitted and locked in the hole 3a, the cover 1 is provided between the inner wall of the upper cover 1 and the projection 4 including the claw 4a. Two
The spring 5 that expands and contracts in the fitting direction is fixedly arranged.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device cover locking structure, and more particularly, to an electric device cover locking structure for connecting and locking divided covers forming an external appearance.

[0002]

[Prior Art]

 Conventionally, this type of locking structure connects the upper cover and the lower cover with fixing screws from the side of the outer box, or provides a protrusion with a claw on the upper cover and fits the claw of this protrusion on the lower cover. A hole to be formed is provided, and the claw and the hole are fitted to each other and locked.

[0003]

[Problems to be solved by the device]

 This conventional cover lock structure requires the work of tightening and unscrewing the screw using the fixing screw, and requires special measures to prevent the screw from coming off too much when unscrewing. is there. Also, if the claws of the projections with claws fit in the holes, the work of connecting the covers to each other can be done with one touch, but when removing, use a tool through the holes of the lower cover to remove the claws of the projections of the upper cover. While elastically deforming the cover toward the inside of the cover and removing it one by one, there is a drawback that you have to lift and hold the upper cover upward and release the remaining lock so that the removed claws will not be locked again. It was

An object of the present invention is to solve the above drawbacks and to provide a lock structure for an electric device cover, which enables easy and quick unlocking work.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the lock structure of the electric device cover of the present invention is such that the cover covering the outside of the electric device is divided, and one cover 2 of the divided covers is provided near the end thereof. A cutout hole 3 is provided, and a projection 4 having an outwardly facing claw 4a is integrally formed inside the end portion corresponding to the hole 3 of the other cover 1, and the projection claw 4a is fitted into the hole 3. In this structure, the spring 5 which expands and contracts in the fitting direction of the covers 1 and 2 is arranged between the inner wall of the other cover 1 and the projection 4 including the claw 4a.

[0006]

【Example】

 Next, the present invention will be described with reference to the drawings. FIG. 1 is a sectional view showing an essential part (a part) of one embodiment of the present invention. FIG. 2 is a perspective view showing an example of an electric device cover to which the embodiment of FIG. 1 is applied. Note that FIG. 1 shows a part of a cross section taken along the line AA including one of the holes 3 in the lower cover 2 of FIG. In FIG. 1, 1 and 2 are an upper cover and a lower cover that divide the appearance of the electric device into two parts. 3 and 3 are cover lock holes provided near the end of the lower cover 2, and 4 is provided near the inner end of the upper cover 1 and has a claw 4a facing outwardly at its tip. It is a protrusion for the cover lock. Protrusions 4 and 4 are arranged corresponding to the holes 3 and 3, and the lower cover 2 and the upper cover 1 are also provided on the surface on the opposite side of the surface of the outer box of FIG. A combination of holes 3,3 and claw-shaped protrusions 4,4 is provided.

As shown in FIG. 1, the gap between the inner wall of the upper cover 1 and the protrusion 4 is just adapted to the thickness of the plate of the lower cover 2 so that its end portion can freely fit in and out. Is becoming Reference numeral 5 denotes a spring, which is a feature of the present invention, and is inserted in this gap, but it is held because it has the pawl 4a and does not fall off. And the spring 5 can freely expand and contract within this gap.

FIG. 3 is an explanatory view (cross-sectional view) showing an example of a situation in which the upper and lower covers of the embodiment of FIG. 1 are fitted together. As for the fitting of the upper cover 1 and the lower cover 2, when the covers are brought close to each other from the state shown in FIG. 3, the spring 5 is compressed and the claw 4a of the protrusion 4 is fitted into the hole 3 and fixed. When the fitting is removed, all that is required is to push the claw 4a from the outside through the hole 3 and the claw 4a will come out of the hole 3, and at the same time the spring 5 will push the lower cover 2 downward and the upper cover upward. Bring it up. This state is the same as that shown in FIG. Therefore, the claw 4a is maintained in the disengaged state, so that when one fitting is disengaged and then the next fitting is disengaged, there is no fear of re-fitting at the place before once disengaging as in the conventional case, and the cover is vertically moved. There is no need to support it apart.

[0009]

[Effect of the device]

 As described above, according to the present invention, the spring is inserted between the cover of the fitting portion and the cover is fixedly arranged, so that when the cover is removed, the upper cover is lifted only by pushing the claw portion. It is possible to remove other fittings without holding the part that has been once removed, and there is an effect that the work is significantly easier than in the past.

[Brief description of drawings]

FIG. 1 is a sectional view showing an essential part of an embodiment of the present invention.

FIG. 2 is a perspective view showing an example of an electric device cover to which the embodiment of FIG. 1 is applied.

FIG. 3 is an explanatory view (cross-sectional view) showing an example of fitting operation of the embodiment of FIG.

[Explanation of symbols]

 1 Upper cover 2 Lower cover 3 Hole 4 Protrusion with claw 4a Claw 5 Spring

Claims (1)

[Scope of utility model registration request] 1. A cover for covering the outside of the electric device is divided, and one of the divided covers is provided with:
A cutout hole is provided near that end, and a projection with a claw facing outward is integrally formed inside the end of the other cover corresponding to the hole, and the claw of the projection is fitted into the hole. The lock structure for the electric device cover, wherein a spring that expands and contracts in the fitting direction of the cover is arranged between the inner wall of the other cover and the protrusion including the claw portion.