JPS6345019Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a case for a small electrical device such as a pocket pager.

Conventionally, some small electrical equipment cases have been divided into two or three components, and these components are assembled in a sliding or opening/closing manner. Such electrical equipment cases are easy to assemble and have high production efficiency, but because anyone can easily open and close them, there is a risk that the user of the electrical equipment may inadvertently touch the internal circuits and cause misadjustment or malfunction. There were times when I did something like that. Additionally, there were some cases in which the case could not be opened or closed once they were fitted together during manufacturing, but this also caused the problem of making maintenance work difficult.

This idea can be assembled by fitting together.
To provide an electrical equipment case which can be prevented from being carelessly disassembled by a user and which can be easily disassembled when necessary.

Hereinafter, this invention will be explained in detail based on one embodiment shown in the drawings. As shown in FIG. 1, the electrical equipment case of this embodiment has a lower part 1, an upper front part 3, and an upper rear part 5, each made of plastic. The lower member 1 is the lower part of the electric equipment case divided into two parts, upper and lower, and the upper front part 3 and the upper rear part 5 are the upper parts of the two parts, which are further divided into front and rear parts. It is something.

The peripheral wall portions 7a, 7 are formed upwardly from a position slightly inward of the upper surface peripheral edge portion (matching surface) of the lower member 1.
b, 7c are extended, and these peripheral wall portions 7a, 7b
Projections 9, 9 protrude laterally on the front side of the upper front member 3, and engagement grooves 11, 11 formed on the inner wall of the upper front member 3 engage with these projections, so that the upper front member 3 is attached to the lower member 1. is installed. Note that 13 is a transparent plate held by the lower member 1 and the upper front member 3.

The upper rear member 5 is slid from the rear side of the lower member 1, and the projections 15 formed on the inner peripheral surface of the upper rear member 5 are fitted into the guides 17 formed on the peripheral walls 7a and 7b of the lower member 1. In particular, it is positioned.

An opening 2 is provided at a rearward position of the upper wall 19 and the side wall 21 of the upper rear member 5 so as to straddle these.
3 is formed. This opening 23 is provided so as to form an edge 24 between it and the lower surface (matching surface) of the side wall 21 of the upper rear member 5. With the protrusion 15 of the upper rear member 5 fitted into the guide 17 of the lower member 1, the opening 23 is opened as shown in FIG.
Engagement holes 25, 25 are formed in portions of the peripheral wall 7a located above the upper surface of the edge 24, with their lower surfaces aligned with the upper surface of the edge 24.

27 is a lid member for covering the opening 23;
It is formed in a shape complementary to the opening 23. The lower end of the side wall 26 rests on the upper surface of the edge 24, and the lower end of the inner surface of the side wall 26 has an engaging hole 25.
Protrusions 29 that engage with these engagement holes are formed to correspond to these engagement holes. Further, a protrusion 33 is formed on the lower surface of the upper wall portion 31 of the lid member 27 and protrudes along the width direction of the electrical equipment case. Furthermore, an engagement groove 35 that engages with this protrusion 33 is formed on the inner circumferential surface of the upper wall 19 of the upper rear member 5. When the opening 23 is covered with the lid member 27,
The protrusion 29 passes through the upper surface of the edge 24 of the opening 23 and engages with the engagement hole 25 . Therefore, since the edge 24 of the upper rear member 5 is sandwiched between the upper surface of the lower member 1 and the lower end surface of the side wall 26 of the lid member 27, the upper rear member 5 can move in the vertical and front-back directions. to restrain. That is, the lid member 27 connects the lower member 1 and the upper rear side member. Furthermore, since the protrusion 33 engages with the engagement groove 35, the lid member 27 is restrained from moving in the width direction. Opening 2 like this
3, engagement hole 25, lid member 27, protrusion 29, protrusion 3
3. The feature of this invention is that the engagement groove 35 is provided.

Reference numeral 37 denotes a clip for attaching this electrical device to clothing, etc. This clip 37 is attached to the outer peripheral surface of the upper wall 19 of the upper rear side member 5, and the leaf spring 39 forming a part of this clip 37 is It extends toward the upper front member 3 side, and an engagement hole 41 is bored in the middle thereof. When the protrusion 15 of the upper rear member 5 is fitted into the guide 17 of the lower member 1, a protrusion 43 is formed on the outer circumferential surface of the upper wall of the upper front member 3 that is in contact with the engagement hole 41. The protrusion 43 engages with the engagement hole 41.
As a result, the movement of the upper rear member 5 in the front-rear direction is further restricted.

In the small electrical case configured in this way, when the upper rear member 5 is fitted to the lower member 1,
An engagement hole 25 is formed in a part of the peripheral edge 7a exposed from the opening 23, and the side wall 26 of the lid member 27 is inserted into the engagement hole 25.
Since the projections 29 of the upper rear member are engaged with each other, the edge 24 of the upper rear member is sandwiched between the lid member 27 and the lower member 1, and unless the lid member 27 comes off, the upper rear member 5
will not come off from the lower member 1. Moreover, since the lid member 27 is attached to the upper rear member 5 by the protrusion 33 and the engagement groove 35, the lid member 27
7 will not come off easily. Therefore, in the assembled state, the upper rear member 5 does not come off from the lower member 1, and can be prevented from being carelessly disassembled by the user. When disassembling this electrical equipment case for maintenance and inspection, the upper wall 31 of the lid member 27 is pushed in a little to release the engagement of the protrusion 33 with the engagement hole 35, and the lid member 27 is moved to the side opposite to the equipment. The protrusion 29 may be disengaged from the opening 25 by sliding the protrusion 29 toward the opening 25, and can be easily disassembled when necessary.

In the above embodiment, the upper front member 3 is attached to the lower member 1 by a so-called fitting method in which the protrusion 9 is engaged with the engagement groove 11. The upper rear member 5 may be attached in a sliding manner in the same way as in the case of attachment to the upper rear member 5, or alternatively, the upper rear member 5 may be attached in a fitting manner.

[Brief explanation of the drawing]

FIG. 1 is an assembled view of an electrical equipment case according to this invention, and FIG. 2 is a longitudinal cross-sectional view of the main parts of the case. 1, 5...first and second divided members, 23...
Opening, 24... Edge, 25... First engaging portion, 2
7... Lid member, 29... Second engaging portion, 33...
Third engaging portion, 35... Fourth engaging portion.

Claims (1)

[Scope of utility model registration request] In a case formed separately into at least a first and a second member, an opening provided in the first member so as to form an opening edge between the mating surfaces of the first and second members, and the opening edge. a lid member that covers the opening and has an end that is in contact with the opening side surface of the opening; and a lid member that is positioned above the opening side surface of the opening edge and inside the second member a first engaging portion provided, and a second engaging portion provided at a position corresponding to the first engaging portion on the inner surface of the lid member in a covered state and engaged with the first engaging portion. a third engaging portion provided at a position apart from the opening edge of the opening, and a third engaging portion provided on the first member so as to engage with the third engaging portion. 4. An engaging portion.