Portable telephone

Details Portable telephone Portable telephone

1999-07-08

2002-03-12

Legree, Tracy (Department: 2681)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S090300, C455S128000, C455S347000, C379S433020, C361S816000, C361S752000, C361S753000

Reexamination Certificate

active

06356768

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a small trouble-free portable telephone.
2. Description of the Related Art
An example of conventional portable telephones will be described with reference to FIG.
2
. The conventional portable telephone comprises a lower cover
21
, which is molded of a synthetic resin, and an upper cover
22
, which is molded of the synthetic resin and combined and coupled with the lower cover
21
. The conventional portable telephone has an accommodation chamber
23
formed in the interior of the covers
21
and
22
. The lower cover
21
has a plurality of pillars
21
a
in the interior of it, whereas the upper cover
22
includes a main body
22
a
and a lid member
22
b
which can be mounted on and dismounted from the main body
22
a.
A mother substrate
24
composed of a printed circuit board includes conductive patterns, and various kinds of electric parts (not shown) are attached to the mother substrate
24
in the state that they are connected to the conductive patterns. Further, a connector
25
is attached to the upper surface of the mother substrate
24
which is accommodated in the accommodation chamber
23
and attached therein by the pillars
21
a.
A transmitter/receiver unit
26
molded of a synthetic resin includes a rectangular frame member
27
, various kinds of electric parts (not shown) disposed in the frame member
27
, and a connector
28
disposed in the frame member
27
for connecting these electric parts to a connector
25
on the side of the mother substrate
24
.
The transmitter/receiver unit
26
arranged as described above is attached to the mother substrate
24
in the accommodation chamber
23
in the state that the connector
28
is coupled with the connector
25
on the side of the mother substrate
24
simultaneously with the attachment of the transmitter/receiver unit
26
to the mother substrate
24
.
A cartridge type battery
29
is formed to a rectangular shape and accommodated in the accommodation chamber
23
in parallel with the transmitter/receiver unit
26
in a lateral direction. The battery
29
is held in the accommodation chamber
23
by an appropriate means as well as can be replaced by removing the lid member
22
b.
A switch member
30
has a plurality of push button sections
31
through which phone numbers and the like are input. The switch member
30
is disposed backward of the mother substrate
24
and located from a position where it confronts the battery
29
to a position where it confronts the connector
25
. A desired phone number and the like can be input by depressing the push button sections
31
.
The conventional portable telephones arranged as described above have a problem that the space factor of them is bad and their size is increased because the transmitter/receiver unit
26
and the battery
29
are attached in parallel with each other in the case formed of the covers
21
and
22
.
Further, there is also a problem that when the push button sections
31
located in the vicinity of the connector
25
are depressed, the mother substrate
24
and the frame member
27
are moved in the direction of an arrow Y as well as the connectors
25
and
28
are bent by the movement, whereby not only the connection between the connectors
25
and
28
are made unstable but also they are broken.
SUMMARY OF THE INVENTION
As a first arrangement for solving the above problems, there is provided a portable telephone, which comprises a mother substrate attached in a case; a transmitter/receiver unit attached in the case and including a box-shaped frame member and various kinds of electric parts accommodated in the frame member; and a battery attached in the case, wherein the frame member of the transmitter/receiver unit is attached to the mother substrate in the state that the lower portion of it is placed on the mother substrate, the battery is placed on the upper portion the frame member which located opposite to the mother substrate and the frame member is partly interposed between the mother substrate and the battery.
As a second arrangement for solving the above problems, a first connector section is provided with the transmitter/receiver unit
6
as well as the mother substrate is provided with a second connector section which is coupled with the first connector section, and the first connector section is coupled with the second connector section in a portion of the interior of the frame member.
As a third arrangement for solving the above problems, the frame member comprises a low box-shaped section and a high box-shaped section, and the low box-shaped section is interposed between the mother substrate and the battery.


REFERENCES:
patent: 5731964 (1998-03-01), Kitakubo et al.
patent: 7-273685 (1995-10-01), None

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