JPS60140615A - Keyboard - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field and Prior Art] The present invention relates to an input device for a terminal, and particularly to a keyboard input device.

Conventionally, in most keyboard input devices of this type, input is performed by pressing keys with fingers. In this case, a stroke for the contact switch provided above the key is necessary and complicated, resulting in a disadvantage that the thickness of the device increases.

Furthermore, the Kugata method, which relies on pressing keys with fingers, has the disadvantage that it is difficult to input continuous information such as graphical information.

On the other hand, as an input method other than the key suppression operation, there is a method using a voice recognition input device, but this method has the drawback of being more expensive than a general keyboard.

Furthermore, voice recognition input devices have the disadvantage that current technology does not allow continuous input of information.

[Purpose of the invention]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an inexpensive keyboard that eliminates the above-mentioned drawbacks, has a thin housing, and allows easy continuous input of information.

(Structure of the Invention) According to the present invention, conductor patterns constituting a match matrix are formed on the inner surfaces of a pair of wiring boards facing each other in the vertical direction, and a magnetic material and a conductive material are arranged between the conductor patterns. The above object can be achieved by filling the lower wiring board with a liquid and forming magnetic pole pieces on the outer surface of the lower wiring board so as to correspond to the cross points of the switch matrix pattern.

[Explanation of Examples]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view of a keyboard structure showing one embodiment of the present invention. FIG. 2 is an overall perspective view of a keyboard showing an embodiment of the present invention.

In the figure, 1 is a keyboard body, which has wiring boards 2a and 2b arranged vertically to face each other.

3a and 3b are conductor patterns; A9, the wiring board 2a;
, 2b are arranged facing each other on the inner surface thereof. The material is liquid and consists of a magnetic material and a conductive material.

A magnetic pole piece 5 is provided on the outer surface of the lower wiring board 2b so as to correspond to the conductor pattern 3b. 6 is an insulator, and each conductor pattern 30 on the wiring boards 2a, 2b
It is attached so as to surround it. 7 is a magnet 7 at the tip.
The magnetic force of the magnet 7a is stronger than the magnetic force of the magnetic pole piece 5. 10 is marking,
On the outer surface of the wiring board 2a on which the magnetic pole piece 5 is not provided, alphabetical letters, numbers, symbols, etc. are provided so as to correspond to the conductor pattern 3. 11 is a connection part for an external interface.

As shown in FIG. 1, when the magnetic pole frame 7 is placed at the input position on the keyboard 1, the magnetic force of the magnet 7a provided at the tip of the magnetic bar 7 is stronger than the magnetic force of the magnetic pole piece 5, so that the magnetic pole frame 7 7
The magnetic material in the liquid 4 is pulled by the magnetic force.

For the above reason, the liquid 4 comes into contact with the upper conductor pattern 3a, and the upper and lower conductor patterns 3a, 3b are electrically connected due to the conductive material in the liquid 4.

As shown in FIG. 2, markings 10 displaying alphabetic characters, numbers, symbols, etc. are provided on the surface of the upper wiring board 2a.

In this case, the marking 10 is attached so that the English letter portion matches the cross point of the switch matrix pattern, that is, directly above the conductor turns 3a and 3b.

〔Effect of the invention〕

As explained above, the present invention uses a magnetic pole frame that has a stronger magnetic force than the magnetic pole pieces of the wiring board, so that input can be performed simply by placing the magnetic pole frame at the desired position without requiring pressing force from the fingers. It is also possible to input graphic information by continuously operating the magnetic pole frame. Furthermore, since no key switch stroke is required, the casing can be made thinner, and the structure is simpler than that of a human-powered voice recognition device, making it possible to provide an inexpensive keyboard that does not need to be manufactured.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a keyboard structure showing one embodiment of the present invention. FIG. 2 is an overall perspective view of a keyboard showing an embodiment of the present invention. 1...Keyboard 2a, 2b...Wiring board 3a
, 3b...Conductor pattern 4...Liquid 5...Magnetic pole piece 6...Insulator 7...Magnetic pole frame 10...Marking 11...External interface circumferential tangent section Applicant: NEC Corporation

Claims (1)

[Claims] A conductor pattern constituting a switch matrix is formed on the inner surface of a pair of wiring boards facing each other in the vertical direction, and a magnetic material and a conductive material that are attracted (by the magnetic force of a magnet) are formed between the conductor patterns. 1. A keyboard, characterized in that said lower wiring board is filled with a liquid and further has magnetic pole pieces formed on an outer surface of said lower wiring board to match cross points of a switch matrix pattern.