JPH05211547A - Portable telephone set - Google Patents

Abstract

PURPOSE:To eliminate a design limitation by a hinge of the portable telephone set and to improve the assembly work performance including its electric connection. CONSTITUTION:A cross section of a joint face 5 between a 1st case 2 being a main case and having a receiver and a 2nd case 4 having at least a transmitter 3 is formed to be a curve. Furthermore, a tightening part and a turning shaft of the 1st case 2 and the 2nd case 4 are set downward in the lengthwise direction of the 1st case 2 at a right angle to the joint face 5 so that the 2nd case 4 is turned by 180 deg. with respect to the 1st case 2 and the curve of the joint face 5 is set for the transmitter and the receiver in such a way that the curve is along with a distance between a mouth and an ear of a busman body and its angle between them.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone, and in particular, a part of the housing is made movable during a telephone call, and a mouthpiece and an earpiece are predetermined so as to match the distance and angle between a human mouth and an ear. The present invention relates to a mobile phone that can be deployed at any position.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 2, a portable telephone of this type is conventionally composed of an upper casing 19 having a receiver 18 and a lower casing 21 having a transmitter 20.
To connect 9 and the lower housing 21, a hinge portion 22 that can fold the lower housing 21 into the upper housing 19 is used. Folded and the upper housing 1 during a call
It was rotatably connected so as to be developed at a constant angle with respect to 9.

[0003]

In this conventional portable telephone, the rotary shaft 23 is provided inside the hinge portions 22 of the upper casing 19 and the lower casing 21. This rotating shaft 23
Needs a certain size in consideration of strength,
Since the hinge portion 20 itself appears in the appearance, it is easy to be restricted in design, and it is necessary to pass cables for electrically connecting the upper housing 19 and the lower housing 21 through the inside of the hinge portion 22, There is a drawback that the structure becomes complicated and the assembling workability also deteriorates.

An object of the present invention is to eliminate the above-mentioned drawbacks and to provide a portable telephone having a simple structure which is less likely to be restricted by design and has excellent assembling workability.

[0005]

According to another aspect of the present invention, there is provided a portable telephone, which comprises a first casing having a receiver as a main casing and at least a transmitter arranged to be locked to the first casing. Two housings, the first housing and the second housing slidably contact each other at a joint surface having a curved cross section in the thickness direction, and the joint surface of the first housing. Near the lower end of the second casing, the second casing is rotated 180 degrees with respect to the first casing and locked, and a fastening structure for holding the second casing together with the first casing in a talking state is configured.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a front view (a) during non-call, a front view (b) during call, and a side view (c) during call of a portable telephone according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state in which the first housing 2 and the second housing 4 of the embodiment shown in FIG. 1 are connected.

The portable telephone according to the present embodiment has a first casing 2 which is a main casing and has a receiver 1, and at least a transmitter 3.
And a joint surface 5 in the thickness direction of the first housing 2 and the second housing 4 has a curved cross section.

As shown in FIG. 2, the second housing 4 has a recess 6 on the joint surface 5 with the first housing 2, and a hole 7 at the center of the recess 6.

The recess 6 and the hole 7 have a rotating shaft 8 having a polygonal head shape which is smaller than the recess 6, and the diameter of the rotating shaft 8 can be made smaller than that of the hole 7. Has a structure that can be easily rotated with respect to the recess 6 and the hole 7.

A leaf spring 9 is attached to a rotary shaft 8 projecting from the hole 7 to the inside of the second housing 4, and further an E ring 10 is attached.
And the rotary shaft 8 is fastened to the second housing 4 by the leaf spring 9.

The first housing 2 has a fitting recess 11 on the joint surface 5 with the second housing 4, which has the same shape as the head shape of the rotary shaft 8, and the center of the fitting recess 11 is at the center. A hole 12 is provided.

The rotary shaft 8 fastened to the second housing 4 is fitted into the fitting recess 11 of the first housing 2 so that the shape of the head 13 of the rotary shaft 8 and the shape of the fitting recess 11 match. Therefore, the rotation shaft 8 is structured so as not to rotate carelessly with respect to the first housing 2.

The head portion 13 of the rotary shaft 8 is provided with a screw portion 14, and the rotary shaft 8 fitted in the fitting recess 11 of the first housing 2 is a hole from the inside of the first housing 2. It is fastened to the first housing 2 by means of screws 15 through 12.

The second housing 4 is centered around the rotary shaft 8.
Rotates 180 degrees with respect to the first housing 2, but the joint surface 5
Is set to a radius of gyration that allows the handset 1 and the transmitter 3 to adapt to the distance and angle between the human ear and mouth during a call.

Further, the joint surface 5 of the second casing 4 with the first casing 2 has a groove 16 slightly larger than 180 degrees about the rotation axis 8 so that the first casing 2 has a groove 16. The joint surface 5 with the second housing 4 has a convex portion 17 having a width slightly smaller than the width of the groove 16, and these are fitted to each other to form the second portion.
The housing 4 is prevented from rotating more than necessary during a call and during a non-call.

[0018]

As described above, according to the present invention, the fastening portion by the rotation shaft and the fitting and locking is provided on the joint surface between the first casing and the second casing, so that the fastening portion appears on the appearance. This has the effect of increasing the degree of freedom in design.

Also, since electrical wiring between the first and second casings can be handled by the overlapping portions of the first and second casings, there is an effect that assembly workability is also excellent. .

[Brief description of drawings]

FIG. 1 is a front view (a) during a non-call, a front view (b) during a call, and a side view (c) during a call of a mobile phone according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a combined state of the first housing and the second housing during a call in the embodiment of FIG.

FIG. 3 is a front view (a) of a conventional mobile phone during non-call, a front view (b) during call, and a side view (c) during call.

[Explanation of Codes] 1,18 Handset 2 First casing 3,20 Transmitter 4 Second casing 5 Bonding surface 6 Recess 7,12 Hole 8,23 Rotating shaft 9 Leaf spring 10 E-ring 11 Fitting recess 13 Rotating shaft head 14 Screw part 15 Screw 16 Groove 17 Convex part 19 Upper housing 21 Lower housing 22 Hinge part

Claims (1)

[Claims] 1. A first casing having a receiver as a main casing, and a second casing having at least a transmitter arranged to be locked to the first casing, wherein the first casing is provided. The housing and the second housing slidably contact each other at a joint surface having a curved cross section in the thickness direction, and the second housing is provided near the lower end of the joint surface of the first housing. A portable telephone having a fastening structure which is rotated by 180 degrees with respect to the first casing and locked, and which is held together with the first casing in a talking state.