JPH075655Y2 - Body structure of communication equipment - Google Patents

Description

[Detailed Description of the Invention] [Industrial application] The present invention relates to a structure of a communication device, mainly a small casing such as a pager, and particularly to a communication device having a secure cover and excellent in appearance. Regarding body structure.

[Conventional technology]

Conventionally, as a case structure of this kind, for example, when a pager is lifted, a dry battery is used as a power source for driving an internal circuit. For this electric exchange, a battery cover can be easily attached to and detached from the case. It is installed. Further, the cover for mounting the printed circuit board on the case and holding the same also has a structure that can be securely fixed by the simplest method in consideration of maintainability and assembling.

As a conventional example, there is a structure as shown in FIG. 3 and FIG. It is composed of a case body 7, a cover 8, a battery cover 3, a printed circuit board 10, and a battery holder 9 and a battery 11 which are integrally assembled with the printed circuit board 10.

First, the case body 7 and the cover 8 house the printed circuit board 10 inside, and the groove 7 _b on the case body 7 side and the rail on the cover 8 side are arranged.
8a is slid and fitted, and the final fixing is the screwing part embedded in the boss 7a protruding from the inside of the case body 7.
7d is fastened with the screw 12 at the fixed portion 8c of the cover 8. After that, the battery 11 is housed in the electronic holder 9, and the battery cover 3 is provided with the groove 7c on the case body side, the rib 8b and the rib 3 on the cover side.
Use a, etc. and slide it in the same way. Then, the locking piece 3b at the tip of the battery cover 3 is locked in the recess 8d on the inner surface of the cover 8 to perform locking. At the time of disengagement, a finger is slid on the knurled surface 3c to slide it, whereby the lock is released by the plastic elasticity of the locking piece 3b.

[Problems to be solved by the device]

In the conventional casing structure described above, as can be seen in FIGS. 3 and 4, the fixing screw 12 is exposed on the back surface of the cover 8, so that the appearance is not good and the metal object is exposed. There is a drawback that static electricity may cause a jump into the internal circuit. Further, since the screw tightening direction for fixing the cover is orthogonal to the case body, there is a drawback that there is a possibility that a gap is often generated between the case and the fitting surface 6 of the cover due to the looseness of the cover and the screw. is doing.

[Means for Solving the Problems]

The present invention is a case body accommodating and installing a battery holder for accommodating a printed circuit board and a battery for forming an electronic circuit, and is slidably fitted to the case body so as to cover the case body except the portion of the battery holder. In a casing structure of a communication device having a cover and a battery cover fitted to cover the battery holder, a female screw is provided upright in the case body and screwed in the same direction as the sliding direction. A screw fixing portion and a fixing screw for fixing a part of the cover to the screw fixing portion by fixing the cover are provided. The fixing screw tightens the cover in the sliding direction and is located inside the battery cover. Is configured.

〔Example〕

 Next, the present invention will be described with reference to the drawings.

Referring to FIG. 1 which is an exploded perspective view of a small receiver such as a pager according to an embodiment of the present invention, a battery holder 4 for accommodating a printed circuit board 5 and a battery 11 forming an electronic circuit is shown. A case body 1 in which is installed and installed, and a cover 2 slidably fitted to the case body 1 so as to cover the case body 1 excluding the electronic holder 4.
Battery cover 3 that fits so as to cover only the battery holder 4
And a protrusion 1a provided with a screw stopper 1d that is erected in the case body 1 and has a female screw threaded in the same direction as the sliding direction of the cover 2, and a part of the cover 2. And a screw 12 for fastening the fixing portion 2c to the screw stop portion 1d to fix it,
The screw 12 is configured to tighten the cover 2 in its sliding direction and to be located inside the battery cover 3.

That is, in this embodiment, the basic components of the case body 1, the cover 2 and the battery cover 3 and the fitting technique thereof are the same as the conventional example, but the fixing means for the case body 1 and the cover 2 is different from the conventional example. There are features.

This point will be described in detail. First, the case body 1
A projecting portion 1a integrally formed at the time of molding is provided on the inner surface of, and a screwed portion 1d made of sheet metal is inserted inside the projecting portion 1a. The tapping direction of the female screw is different from the conventional one and is horizontal (corresponding to the sliding direction of the cover 2). Next, a fixing portion 2c is also provided on the cover 2 side by integral molding, and the screw 12 is attached to that portion with a mechanism for preventing the screw 12 from falling off (a mechanism that does not remove from the cover 2 even if the screw 12 is loosened).

Further, the electronic holder 4 is provided with a notch 4a so that the fixing portion 2c of the cover 2 can pass through when the cover 2 is slidably attached to the case body 1. By doing so, the cover 2 is slidably attached to the case body 1 and finally the screw 12
Are assembled by tightening in the sliding direction of the cover 2. After that, the battery 11 is housed in the battery holder 4, and the battery cover 3 is slidably fitted as in the conventional example.

As shown in the external perspective view of the final assembled state in Fig. 2, the screw 12 for fixing the cover 2 must enter the inside of the battery cover 3 and be hidden inside the housing so that it is completely invisible from the outside. The characteristic that can be obtained is obtained. Further, according to this fixing means, the gap of the fitting portion 6 can be almost eliminated.

[Effect of device]

As described above, according to the present invention, the fixing screws for the case body and the cover are located inside the casing, and the tightening direction of the screws is the same as the sliding direction of the cover. Is good because it is not exposed.

(2) The tightening direction reduces the gap between the case body and the fitting part of the cover, reducing the appearance of the fitting part with a gap and reducing the risk of dust and the like. .

(3) Since the metal screw does not go out of the housing, there is less concern about static electricity jumping in. And so on, there are practically excellent effects.

[Brief description of drawings]

1 and 2 are an exploded perspective view and an external perspective view (rear part) of an embodiment of the present invention, and FIGS. 3 and 4 are an exploded perspective view and an external perspective view showing an example of a conventional casing structure. It is a figure (back part). 1,7 …… Case body, 2,8 …… Cover, 3 …… Battery cover, 4,9 …… Battery holder, 5,10 …… Plit board, 6…
… Mating part (gap), 11 …… battery, 12 …… screw, 1a …… projection, 1b, 1c, 7b, 7c …… groove, 1d, 7d …… screw stop, 2a, 8a
...... Rail, 2b, 8b …… Rib, 2c, 8c …… Fixed part, 2d, 8d
...... Concave, 3a ...... Rib, 3b ...... Locking piece, 3c ...... Race surface,
4a …… Notch.

Claims (1)

[Scope of utility model registration request] 1. A case body in which a printed circuit board forming an electronic circuit and a battery holder for housing a battery are housed and installed,
A communication device including a cover that is slidably fitted to the case main body so as to cover the case main body except for the battery holder, and a battery cover that is fitted so as to cover the battery holder. In the body structure, a screw fastening portion that is erected in the case body and has a female screw screwed in the same direction as the sliding direction, and a fixing screw that fastens and fixes a part of the cover to the screw fastening portion. A casing structure of a communication device, wherein the fixing screw is configured to be located inside the battery cover while tightening the cover in the sliding direction.