JPH0918373A - Portable telephone set provided with malfunction prevention opening part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the falling of a main body by inserting a pointing finger in a through-hole at the time of communication by providing the through-hole capable of inserting the finger from a main body key operation part to a back surface. SOLUTION: A circular hole 2 capable of inserting the finger passed through from the key operation part to the back surface is positioned slightly to the right from the center part of the main body 1. At the time of holding the main body 1 with a left hand and performing the communication, by inserting the pointing finger in the through-hole 2, force acting in a downward direction is received and the falling is prevented even when the main body 1 is to erroneously fall off from the hand. Simultaneously, by inserting the pointing finger to the through-hole 2, an operation control switch 3 provided on the inner wall of the through-hole 2 is pressed by the finger and a state where key buttons 5 are operatable is attained. When the switch 3 is turned on, an LED for illumination mounted on a key substrate is simultaneously turned on. The switch 3 is not operated at the time of carrying and at the time of standby and the key buttons 5 becomes inoperable. Thus, portability is improved and malfunctions are prevented as well.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a portable telephone.

[0002]

2. Description of the Related Art Conventional mobile phones have a small size, a thin, flat, and vertically long shape, and attach importance to portability. On the other hand, when it is held in the hand, it is heavier than it looks, and the grip portion is slippery, so there is a risk of dropping it.
As a countermeasure against this, a hand strap is provided to prevent one end of the ring-shaped cord from being attached to the main body by hanging the ring on the arm.

Also, in the portable telephone, the key button is arranged on the surface of the main body in a convex shape, and the key button may be erroneously pressed when being carried in or out of a pocket or the like. Conventional mobile phones include those with a foldable body and those with a rotating cover.
It prevented the wrong operation of the key button.

[0004]

When the hand strap is used, it is necessary to open the strap and put it on the arm when using it, which is inconvenient, troublesome, and poor in responsiveness.

Further, the folding type mobile phone and the mobile phone with a cover have caused the device to be large-sized and complicated due to the provision of the hinge portion.

An object of the present invention is to provide a portable telephone having both a drop prevention function and a key button operation control function, which have good responsiveness.

[0007]

SUMMARY OF THE INVENTION In order to achieve the object, the present invention provides a portable telephone with a hole penetrating from the main body key operation portion to the rear surface thereof and dropping the main body by inserting an index finger into the through hole during a call. Prevent.

A key button operation control switch is provided on the inner wall of the through hole so that the key button can be operated only when a finger is inserted into the through hole.

[0009]

In the portable telephone of the present invention, since the through hole for preventing the main body from dropping is provided in a part of the main body, the quick response is good and the troublesomeness during carrying can be reduced. Further, since the key button operation control switch is provided in a part of the through hole, the key button can be operated only when a finger is put through the through hole at the start of a call.

[0010]

[Example] In a portable telephone, a hole is provided from the key operation portion of the main body to the back surface so that the main body is prevented from falling by inserting an index finger into the through hole during a call. Further, a key button operation control switch is provided on the inner wall of the through hole to make the key button operable only when a finger is inserted into the through hole.

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a portable telephone according to the present invention. Reference numeral 2 is a hole through which a circular finger penetrating from the key operation portion to the back surface thereof can be inserted, and is located slightly to the right of the central portion of the main body. Reference numeral 3 denotes a push-type operation control switch which, when a finger is inserted into the through hole 2, presses the finger to make the key button operable. The push-type operation control switch 3 is not necessarily limited to the push type, and other physical types such as a slide type. Type switches or sensor type switches that respond to body temperature, magnetism, etc. are also included. Also, 1
Is a device body having a wireless communication function inside, 4 is a liquid crystal display for displaying characters and the like, 5 is a power supply and a telephone number, key buttons for controlling functions, 6 is a receiver for outputting voice, and 7 is a microphone for inputting voice. , 8 are whip type antennas.

FIG. 2 shows a state during a call,
When holding the main body 1 with the left hand and making a call, the index finger 9 is inserted into the through hole 2.
The force acting in the downward direction can be received by inserting, and the main body 1 can be prevented from falling even if it accidentally falls from the hand. At the same time, by inserting an index finger into the through hole 2, the operation control switch 3 provided on the inner wall of the through hole can be pressed by a finger without being aware of it, and the key button 5 can be operated. As shown in FIG. 3, the operation control switch 3 is mounted on the main board 10, and the movable portion is fixed in position while being sandwiched between the front case 11 and the rear case 12. At the same time when the key button operation control switch 3 is turned on, the illumination LED 13 mounted on the key board 14 is turned on. Further, the key button 5 and the lighting LED 13 are turned off again at the same time when communication is started.

Since the state as shown in FIG. 1 is brought about when carrying or waiting, the key button operation control switch 3 does not operate and the key button 5 cannot be operated.

[0014]

Since the portable telephone according to the present invention has a simple structure in which the drop prevention through hole and the key button operation control switch are provided at the same position on the main body, the portable telephone is more portable than the conventional portable telephone. It has excellent fall prevention and malfunction prevention.

[Brief description of the drawings]

FIG. 1 is a perspective view of a mobile phone according to the present invention when being carried.

FIG. 2 is a perspective view of the same device during a call.

FIG. 3 is a sectional view of an operation control switch section.

[Explanation of symbols]

1 ... Device main body, 2 ... Through-hole microphone, 3 ... Key button operation control switch, 4 ... Display, 5 ... Operation button, 6
... receiver, 7 ... microphone, 8 ... antenna, 9 ... forefinger,
10 ... Main board, 11 ... Front case, 12 ... Rear case, 13 ... Lighting LED, 14 ... Key board.

Front page continuation (72) Inventor Kotoku Nishiyama 1-280, Higashi Koigakubo, Kokubunji, Tokyo Inside the Hitachi Design Co., Ltd. Design Institute

Claims (2)

[Claims] 1. A portable telephone having at least a wireless communication function inside a case, wherein a through hole into which a finger can be inserted is provided from a main body key operation portion to a back surface. 2. The portable telephone according to claim 1, wherein a key button operation control switch for making a key button operable only when a finger is inserted into the through hole is provided on the inner wall of the through hole.