Mounting structure of key pressing device

Details Mounting structure of key pressing device Mounting structure of key pressing device

1999-11-22

2002-10-15

Bost, Dwayne (Department: 2681)

Telecommunications

Transmitter and receiver at same station

Having particular housing or support of a transceiver

C379S433010

Reexamination Certificate

active

06466769

ABSTRACT:

BACKGROUND OF THE PRESENT INVENTION
This invention relates to a mounting structure of a key pressing device in a radio communication equipment such as a portable telephone and a PHS (personal handy phone system), and more particularly to such a structure in which the key pressing device can be easily mounted on mounting base portions formed on a casing.
FIGS. 5 and 6
show a conventional key pressing device in a radio communication equipment such as a portable telephone and a PHS. In
FIG. 5
, bosses
52
for passing respectively through mounting holes
55
in the key pressing device
54
are formed upright on a casing
51
, and after the mounting holes
55
in the key pressing device
54
are fitted respectively on the bosses
52
, the bosses
52
are fused to be fixedly secured to the key pressing device.
FIG. 6
shows the construction of the key pressing device
54
, and this device
54
is formed into a generally L-shape as a whole, and a hinge
57
is formed on upstanding leg portions
56
thereof, and a key button
58
is formed on a front surface of the hinge
57
in a projected manner. Therefore, in a key pressing operation, when the key button
58
is pressed, one end of the hinge
57
is brought into engagement with a switch (not shown) to operate this switch.
Only a lower half of the casing
51
is shown, and the showing of an upper half thereof for mounted on the lower half is omitted. A notch
53
is formed in the casing
51
, and the key button
58
projects outwardly through this notch.
However, in the conventional key pressing device-mounting structure in a portable radio communication equipment, the bosses on the casing must be fused to the key pressing device after the mounting holes in the key pressing device are fitted respectively on the bosses. Thus, there has been encountered a problem that the fusion step, which is cumbersome, must be effected in the mounting operation.
SUMMARY OF THE INVENTION
It is therefore an object of this invention to provide a mounting structure of a key pressing device in which a key pressing device can be easily mounted on mounting base portions formed on a casing.
The above problem has been solved by a mounting structure of a key pressing device in that a key pressing device comprises an elastic member of a generally L-shape, and an engagement claw is formed on a bottom wall portion of the elastic member, and a hinge is formed on upstanding leg portions of the elastic member, and a key button is formed on the hinge, and an engagement portion for receiving the engagement claw of the key pressing device, mounting base portions and stoppers are formed on a casing, and a hole for receiving the key button is formed in the casing, and the engagement claw of the key pressing device is brought into engagement in the engagement portion on the casing while inserting the key button into the hole, thereby effecting a mounting operation.
With this construction, there is achieved an advantage that the key pressing device can be easily mounted on the mounting base portions formed on the casing.


REFERENCES:
patent: 4895326 (1990-01-01), Nimpoeno et al.
patent: 5041870 (1991-08-01), Imai et al.
patent: 5471653 (1995-11-01), Nagai
patent: 5642404 (1997-06-01), Hsu
patent: 6085113 (2000-07-01), Fan
patent: 6101372 (2000-08-01), Kubo
patent: 6148183 (2000-11-01), Higdon et al.

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