JPS62232Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to attaching and locking a housing cover of an electronic device or the like to a housing with a single touch.

The housings of communication devices and various other electronic devices are designed with front panels, covers, and other housing components so that the interior of the housing can be widely opened when assembling the necessary circuit components inside the housing or during post-completion inspections. It is desirable to have a structure in which the cover can be removed, and especially in cases where the cover does not need to be attached to the housing very firmly, it is preferable to have a cover that can be attached to the housing immediately after the work is completed. Conventionally, the method of attaching such a cover relied on locking means such as screws or fasteners, but this required parts and processing for attachment, as well as operations for attachment and removal, and furthermore, Due to demands for weight reduction and simplification, they are manufactured from thin plate materials, which has resulted in inconveniences such as the inability to directly tap screws without providing reinforcement for attachment.

The purpose of the present invention is to enable a cover to be attached to or removed from a housing in one action without requiring any of the above-mentioned parts or operations. A trapezoidal protrusion is formed on the cover at each end in the extending direction of both side plates bent at right angles to the main surface of the cover, and a predetermined protrusion of the trapezoidal protrusion is provided with a protrusion on its surface. , a receiving portion for receiving the trapezoidal protrusion is provided on a surface of the housing along which the cover both side plates fit and are positioned in contact with the end surfaces of the cover both side plates, and a receiving portion is provided for receiving the trapezoidal protrusion, and the receiving portion is engaged with the protruding portion. It has a hole and removably locks the cover. An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of the housing body 2 with the front side opened and the top cover 1 and this cover 1 removed.The inside of the housing body 2 is provided with a partition plate 21, and each part has a printed circuit board 3, 4 and a power supply unit 5 are installed, and each part is electrically connected by cable wiring to constitute an electronic device. and cover 1
is formed by bending the cover main surface 11 and the four sides of this main surface 11 downward so as to cover the open upper surface of the housing 2, and the edges extending in the bending direction of both sides 12 and 13 of this bending Each part is formed into a trapezoidal protrusion 14, and a protrusion 15 formed by extruding a plate surface (or may be formed using a round head rivet) is provided on the surface. On the other hand, on the inner surfaces of both side plates 22 and 23 of the casing 2, a receiving plate 24 is provided at a corresponding position to receive the trapezoidal protrusion 14 of the cover 1, and this receiving plate 24 is provided on the inner side of both side plates 22 and 23 of the housing 2 at a corresponding position to receive the trapezoidal protrusion 14 of the cover 1. It may be attached with a metal fitting 25 bent as shown in the figure, or it may be formed by extruding the side surface and cutting and bending 26. Furthermore, a hole 27 into which the protrusion 15 of the cover 1 fits is provided, as shown in FIG. 2b.
In this case, a square hole 27' remains at the mark of the cut and bend 26 extruded from the side, and this can be used as a hole into which the protrusion 15 fits.

With the above configuration, the cover 1 is placed along the top surface of the housing body 2, and the trapezoidal protrusion 14 of the cover 1 is inserted from the tip between the side plate of the housing body 2 and the support plate 24 using the trapezoidal slope as a guide. Then, the base side plate 1 of the protrusion 14
The end faces of 2 and 13 come into contact with the receiving metal 24, and the position is determined and the device is installed. At this time, the protrusion 15 fits into the hole 27 or 27' of the housing body 2 due to the mutual deformation of the cover and the housing body, and as a result of engaging as shown in the cross-sectional view of the main part of FIG. 1 is locked to the housing 2.

Another embodiment of the cover according to the invention is shown in FIG. The end of the bent part 16 on the back side of the cover 1' is further bent towards the back side, and a protruding piece 1 is attached to the center part.
7 is formed, and the projecting piece 17 is fitted into the hole 29 provided in the back plate 28 of the casing body 2, and the cover 1' is attached to the casing body 2 in the same manner as in the previous case. In this case, the rear side of the cover 1' does not come off due to the fitting relationship between the protruding piece 17 and the hole 29. Therefore, the protruding part 15 of the protruding part 14 is attached to the cover 1'.
There is no need to provide the protrusion 14 on the back side.

As explained above, the electronic device casing according to the present invention has a trapezoidal protrusion formed on the bent end surface of the cover, a protrusion on a predetermined protrusion surface of the protrusion, and a cover on the main body of the casing. The cover is provided with a receiver for receiving the protrusion of the cover and a hole into which the protrusion fits, and the slope of the protrusion of the cover is guided and inserted into the receiver and the protrusion and the hole are engaged to attach the cover to the housing body. The locking operation can be performed with one touch, and when the cover is attached by engaging the protrusion of the cover with the hole in the housing body on the back side, the protrusion of the protrusion on the back side can be omitted. No special fasteners are required. In the installed state, the length of the base of the trapezoidal protrusion and the receiver are in a relationship that defines the movement of the cover in the front and back direction, so the position is fixed, and the receiver moves the protrusion in the left and right direction. Since it is held in place, the side panels of the housing body are prevented from wobbling in the left-right direction, so the cover also functions as a strength member for the housing body. In addition, when removing the cover, you can easily remove it by simply applying enough force to pull out the protrusion from the hole.
Various excellent effects are achieved, such as no tools required for attaching or removing the cover.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the electronic device casing of the present invention with the cover removed, Fig. 2 is a perspective view of the main parts of the receiver, and Fig. 3 is a state in which the casing body and the cover are locked. FIG. 4 is a perspective view of another embodiment of the cover. 1 and 1' are covers, 11 is the main surface of the cover, 12,
13 is a side surface, 14 is a protrusion, 15 is a protrusion, 16 is a bent portion on the back side, 17 is a protrusion, 2 is a housing body, 21 is a partition plate, 22 and 23 are side plates, 24 is a receiving plate, 25 is a metal fitting, 26 is an extrusion cut and bend,
27, 27' are holes, 28 is a back plate, 29 is a hole,
3 and 4 are printed circuit board parts, and 5 is a power supply part.

Claims (1)

[Scope of utility model registration request] A cover that covers a predetermined surface of a casing that accommodates an electronic device has trapezoidal protrusions formed at the ends in the extending direction of both side plates bent at right angles to the main surface of the cover, and the trapezoidal protrusions are The predetermined protrusion has a protrusion on its surface, and a receiving portion for receiving the trapezoidal protrusion is positioned on the surface along which the cover both side plates of the casing fit and are in contact with the end surfaces of the cover both side plates. An electronic device housing comprising: a hole provided in the receiving portion that engages with the protruding portion; and removably locking the cover.