JPH05206922A - Card type individual call receiver - Google Patents

Abstract

PURPOSE:To improve the reliability of writing by securely and electrically connecting a write adapter inserted from an external into ROM incorporated in a card type individual call receiver. CONSTITUTION:A part of a back sheet metal 3 between the sheet metals 2 and 3 at the face and the back, which constitute the housing of the card type individual call receiver, is almost vertically bent and formed so as to provide a step part 3a. A small substrate 6 which electrically touches the write adapter 10 is supported by the perpendicular surface of the step part 3a, and the small substrate 6 is electrically connected to ROM mounted on a substrate 4. Thus, the contact force of electric connection can be received at the step part 3a of the sheet metal 3 supporting the small substrate 6 by the write adapter 10 inserted into a notch part 7a, and the deformation of the sheet metals can be prevented, whereby secure electric connection becomes possible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card-type individual calling receiver, and more particularly to a structure for improving the reliability of writing information in a ROM incorporated in the receiver.

[0002]

2. Description of the Related Art As shown in FIG. 2, a conventional card-type individual calling receiver has a frame-like frame 1 on which a front thin sheet metal 2 and a back thin sheet metal 3 are arranged and joined together. It has a housing structure. When writing information to the ROM built in the housing, as shown in the sectional view of FIG. 5, a cutout portion (mainly also serving as a coin-shaped battery storage portion) provided in a part of the housing 7a. Insert the writing adapter 10 from the ROM
Have an electrical connection to. That is, the substrate 4 is provided inside the receiver along one of the thin metal plates 3, and the conductive pattern provided on the substrate 4 is exposed to the cutout portion 7a.
Further, the writing adapter 10 is provided with a spring piece 10b,
Spring piece 1 of writing adapter 10 inserted in notch 7a
0b comes into contact with the conductive pattern of the substrate 4 by spring pressure to make an electrical connection.

[0003]

In this conventional structure,
Substrate 4 by the spring pressure of spring piece 10b provided on the writing adapter
Since it is electrically connected to the conductive pattern, the spring pressure at this time affects the thin sheet metal 3 through the substrate 4, and the thin sheet metal 3 is easily deformed so as to bulge outward. Therefore, a contact failure with the spring piece occurs and a writing failure in the ROM easily occurs. To avoid this, when inserting the writing adapter, it is necessary to press the sheet metal from the outside with the other hand to prevent bulging deformation to the outside, and one-handed work is required. There was a problem that workability was poor. It is an object of the present invention to provide a receiver in which the writing adapter and the ROM are securely electrically connected and the writing reliability is improved.

[0004]

SUMMARY OF THE INVENTION According to the present invention, a step portion is provided by bending a part of front and back thin metal plates constituting a casing of a receiver to form a step portion, and a writing adapter is provided on a vertical surface of the step portion. It supports a small substrate that makes electrical contact with. The housing has a cutout into which the writing adapter is inserted, and the stepped portion provided on the sheet metal has a vertical surface facing this cutout, and the conductive pattern of the small substrate supported by the stepped portion is cut out. To face the section.

[0005]

The contact force at the time of inserting the writing adapter into the notch of the housing and electrically connecting to the small board is received by the vertical surface of the stepped portion provided on the thin sheet metal, and the deformation of the thin sheet metal is prevented. ..

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a partially exploded perspective view of an embodiment in which the present invention is applied to a card type individual calling receiver having an external shape as shown in FIG. 2, and FIG. 3 is an enlarged sectional view of a main part. The frame 1, the front thin sheet metal 2 and the back thin sheet metal 3 constitute a casing, and a substrate 4 on which electronic components such as a ROM are mounted is provided inside the casing.
Here, a part of the back sheet metal 3 is bent in the plate thickness direction in a crank shape to form a step portion 3a, and a plate antenna 5 is provided in a portion 3b whose outer surface is recessed by the step portion 3a. Put on,
The other portion constitutes the electric storage portion 7 between the surface thin sheet metal 2.
A notch 7a is provided in a part of the frame 1 corresponding to the battery housing 7 so that the battery and the writing adapter can be attached and detached. A front surface label 8 is attached to the surface of the front thin sheet metal 2, and a back surface label 9 is attached to the front surface of the back thin sheet metal 3 and the plate-shaped antenna 5.

Further, inside the housing, a small board 6 is provided along the vertical surface of the step 3a provided on the back sheet metal 3 in a direction perpendicular to the board 4, and the small board 6 is provided. The back thin sheet metal 3 is sandwiched between a vertical surface and a cut-and-raised piece 3c which is a cut-and-raised piece. The small board 6 is electrically connected to the circuit pattern of the board 4 by solder 11 or the like, while a conductive pattern (not shown) for making electrical contact is provided on a vertical surface facing the cutout portion 7a. ing.

For such a receiver, the built-in RO
When writing information to M, as shown in FIG. 4, the adapter 10 provided with a pin connector 10a having a round bar-shaped contact pin that can be expanded and contracted by a spring force at the tip is inserted into the notch 7a. Thereby, the pin connector 10a
Is contacted with the conductive pattern of the small substrate 6 by the spring force, and an electrical connection is made. At this time, the small board 6 is supported by the vertical surface of the step portion 3a of the back sheet metal 3, and in this portion, the insertion force of the adapter 10 and the contact force of the pin connector 10a are resisted, so that the contact force is sufficient. A reliable electrical connection can be obtained. Therefore, the contact force is not applied to the thin sheet metal, and the deformation of the receiver housing due to the deformation of the thin sheet metal is also prevented.

[0009]

As described above, according to the present invention, a step portion is provided on a part of a thin metal plate which constitutes a receiver housing, and a small substrate is supported on a vertical surface of the step portion to electrically connect to a writing adapter. Since the writing force is applied, the contact force of the writing adapter can be received by the step portion, the contact pressure can be stabilized, contact failure can be avoided, and the writing reliability can be improved.

[Brief description of drawings]

FIG. 1 is a partially exploded perspective view of an embodiment of a receiver of the present invention.

FIG. 2 is an external perspective view of a card type individual calling receiver and a ROM writing adapter to which the present invention is applied.

FIG. 3 is an enlarged cross-sectional view of a main part of FIG.

FIG. 4 is a sectional view similar to FIG. 3 when writing is performed.

FIG. 5 is a partial cross-sectional view of a conventional receiver.

[Explanation of symbols]

 1 Frame 2 Front Sheet Metal 3 Back Sheet Metal 3a Step 4 Board 6 Small Board 7a Notch 10 Writing Adapter

Claims (2)

[Claims] 1. A card-type individual calling receiver in which a writing adapter is externally inserted into a ROM (read-only memory) contained in the housing to write information, and the housing is configured. Card-type individual calling, characterized in that a part of the front and back thin sheet metal is bent and formed substantially vertically to form a step, and a small substrate electrically contacting the writing adapter is supported on the vertical surface of the step. Receiving machine. 2. A small board having a notch portion into which a writing adapter is inserted in a part of the housing, and a step portion provided on the thin metal plate has a vertical surface facing the notch portion and supported by the step portion. 2. The card-type individual calling receiver according to claim 1, wherein the provided conductive pattern is opposed to the cutout portion.