JPS6025167Y2 - portable wireless communication device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a portable radio communication device, and particularly to a mounting and fixing device for a battery box thereof.

In a portable wireless communication device, a battery box is detachably attached to the housing of the communication device so that the battery can be easily replaced depending on the degree of consumption of the battery.

In order to simplify the battery box replacement operation, conventionally, each battery box is provided with mounting screws for mounting and fixing the battery box to the communication device housing.

This is convenient because it saves the trouble of replacing the batteries and setting the mounting screws in the battery box, but it is not preferable from a cost perspective because mounting screws are required for each battery box.

As an alternative to screwing, there is a fixing method using a lock plate.

In this method, the battery box is held down from behind by a lock plate that is biased by a spring within the housing section of the communication device housing.

This method has a cost advantage because it does not require mounting screws like the former, but the tightening force is weaker than with screws, so it is difficult to use when mounted on a vehicle. Vibration causes cracks (installation play) in the battery box.

In order to prevent this cracking, it is possible to improve the accuracy of the fitting between the housing and the battery box, but this requires an expensive mold, which inevitably increases the cost, which is not desirable.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a portable radio communication device in which a battery box can be securely fixed to a housing of the communication device without increasing costs.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

Referring to FIGS. 1 and 2, this portable radio communication device includes a housing 1, which is the main body of the communication device, and a battery box that is detachably attached to the housing, and these are made of synthetic resin or die-casting. The bottom is shaped.

The housing 1 has a storage part 3 for storing the battery box 2, and this storage part 3 includes a front wall 1a, a bottom wall 1
b and a pair of side walls 1c, lc.

A pair of ribs 4 extending vertically are provided on the rear wall of the housing 1.
, 4 are provided in parallel, and a presser plate 5 is rotatably supported in the vertical direction between the ribs 4 via a bearing pin 6.

A hole 7 is provided approximately in the center of the holding plate 5 (see FIG. 3), and the neck of a tightening screw 8 is loosely fitted into the hole 7.

In this case, the diameter of the male screw head 8a is made larger than the diameter of the hole 7 so that the tightening screw 8 does not fall out of the hole 7 unexpectedly.

Further, on the surface of the holding plate 5 on the side from which the screw heads 8a protrude, a retaining protrusion 9 is formed which engages with an engaging groove 17 formed in the rear wall of the battery box 2. .

A female screw member 10 is provided on the bottom wall 1b of the housing portion 3 and is screwed into the screw head 8a.

The external shape of the female screw member 10 is formed to project from the side wall 1b in a semi-cylindrical shape, and serves as a guide surface 11 for positioning the battery box 2.

Each of the side wall ICs of the housing section 3 is provided with a wedge-shaped rib 12 that constitutes a guide for the battery box.

Although only one rib is shown in the drawing, each rib 12
The battery box 2 has a pair of upper and lower tapered surfaces 12a, 12a that exert a wedge effect when the battery box 2 is stored and fixed, and prevents the battery box 2 from accidentally falling off from the storage part when being carried due to forgetting to tighten the tightening screws. A locking surface 12b is provided.

Note that 13 is a leg extending from the side wall IC in order to protect the knob 8b of the tightening screw 8 from external impact.
4 is a connector member provided on the front wall 1a.

The battery box 2 has a built-in battery and has an upper wall 2d and a rear wall 2e formed to complement the outer shape of the housing 1 when stored in the storage section 3, and a front wall 1a and a bottom wall of the storage wall 3. 1b and a pair of sidewall ICs? It has a front wall 2a, a bottom wall 2b, and a pair of side walls 2c, 2c facing each of the ICs.

The front wall 2a is provided with a power terminal (not shown) to be connected to the connector member 14, and the rear wall 2e is provided with an engaging groove 17 that engages with the engaging protrusion 9 of the presser plate 5. It is set up.

Each of the side walls 2c, 2c is provided with a hook-shaped guide groove 15.15 which receives the rib 12 from below and cooperates with the rib.

When the battery box 2 is pushed forward in the storage section 3, the guide groove 15 is formed by the tapered surface 12a of the rib 12,
12a, and a locking surface 15b that contacts the locking surface 12b of the rib 12 and prevents the battery box 2 from falling off backward.

Further, a trough-like concave surface 16 is formed on the bottom wall 2b and is guided by a guide surface 11 projecting onto the bottom wall 1b of the storage section 3.

! To install the oil box 2 into the storage part 3 of the housing 1, first introduce the battery box 2 into the storage part 3 from above, guide the rib 12 into the guide groove 15, and then move it forward and remove the battery box. 2 is preset in the storage section 3, and the power terminal of the battery box 2 is fitted into the connector member 14.

Next, as shown in FIG. 3, the presser plate 5 is rotated from the two-dot chain line position to the solid line position so that the engagement protrusion 9 and the engagement groove 17 are engaged with each other, and in this state, tighten. Turn the knob 8b of the screw 8 to tightly screw the male screw head 8a into the female screw member 10.

Therefore, it is strongly pushed forward via the battery box 2 and the holding plate 3, and is thereby firmly fixed in the storage section 3.

That is, during this series of attachment operations, the engagement protrusion 9
The engagement of the engaging groove 17, the wedge effect generated between the tapered surface 12a of the rib 12 and the tapered surface 15a of the guide groove 15, and the engagement of the guide surface 11 with the trough-like concave surface 16 make the battery box 2 is precisely positioned within the storage section 3.

To take out the battery box 2 from the storage part 3, tighten the tightening screw 8.
This is done by loosening the screws and performing the opposite operation to the above.

In this case, even if you carelessly carry the communication device with the tightening screw 8 loosened, the battery box 2 will not fall out of the storage part because the locking surfaces 12b and 15b will come into contact with each other. do not have.

As explained above, according to the present invention, the battery box is fixed by the holding plate provided on the housing side, so there is no need to always have mounting screws for each battery box as in the past. Since the battery box is accurately positioned and fixed within the storage part by the guide member formed between the two, strict fitting precision with respect to the storage part is not required when manufacturing the battery box.

Therefore, it is possible to reduce the cost of the battery box.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a perspective view showing a portable wireless communication device, Fig. 2 is a perspective view showing the housing and battery box separated, and Fig. 3 is a perspective view showing the battery. FIG. 3 is a sectional view of a main part showing a fixed state of the box. In the figure, 1 is a housing, 2 is a battery box, 3 is a housing part, 5 is a holding plate, 8 is a tightening screw, 10 is a female screw member, 12 is a wedge-shaped rib, 14 is a connector, and 15 is a guide groove.

Claims (3)

[Scope of utility model registration request] (1) In a portable wireless communication device in which a battery box is detachably attached to a housing that is the main body of the communication device, the battery box has a guide groove and a first retaining portion, and a device for storing the battery box. a storage part; a holding plate rotatably provided at the rear of the storing part and having a second retaining part that engages with the first engaging part; and a first holding part provided on the holding plate. a second threaded part provided on the bottom wall of the storage part and screwed into the first threaded part, and a guide, and the housing has a guide groove and a guide groove. In the stored state of the battery box with the guide of the housing engaged, the first retaining part and the second retaining part are engaged, and the first screw part and the second screw part are connected. A portable wireless communication device in which the battery box is pressed and fixed by the presser plate by screwing together. (2) In the scope of utility model registration claims (1), the first
A portable wireless communication device characterized in that the engaging portion is an engaging groove, and the second retaining portion is an engaging protrusion. (3) In the scope of utility model registration claims (1), the first
A portable radio communication device in which the threaded portion is formed of a male threaded member, and the second threaded portion is formed of a female threaded member.