JP2591365Y2 - Small keyboard switch - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyboard switch, and more particularly, to arranging a large number of operation units in a substantially central portion and a periphery thereof to reduce the size and to prevent a malfunction of simultaneously operating a plurality of operation units. And a small keyboard switch.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6, a small-sized keyboard switch of this type is formed by stacking contact sheets facing each other, and as a control unit, four operation buttons are vertically arranged in three rows in a grid. A keyboard switch composed of a rectangular main body was common.

[0003]

However, the above-mentioned conventional keyboard switch has a disadvantage that the operation buttons of the same shape in the vertical and horizontal directions are arranged in a lattice, so that the size of the entire keyboard switch becomes large. .

In order to reduce the size, it is conceivable to reduce the size of one operation button. However, there is a limit due to the size of the finger, and this may cause an erroneous operation such as pressing a plurality of operation buttons. There was a disadvantage.

SUMMARY OF THE INVENTION The present invention eliminates the above-mentioned disadvantages, saves space, and at the same time, ergonomically arranges an operation unit without being bound by customs to prevent a wrong keyboard from being used. It is intended to provide a switch.

[0006]

According to the present invention, in order to solve the above-mentioned problems, at least one operation section is provided substantially at the center of the upper surface of the switch body, and a number of operation buttons are arranged around the operation section. It was established. Further, a step or a wall frame may be provided between the central operation unit and the operation buttons therearound.

[0007]

According to the present invention, as described above, when operating the substantially central operation unit, erroneous operation of simultaneously pressing other operation buttons arranged around the operation unit is prevented.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1A is a front view showing a first embodiment of a small keyboard switch according to the present invention, FIG. 1B is an exploded perspective view thereof, and FIG. 1C is a plan view thereof.

In these figures, a circuit pattern 2 and a plurality of contacts 3 are formed on a rectangular printed circuit board 1, and an operating section 4 is provided at a substantially central portion of the printed circuit board 1, and a waveform is provided on an opposite side surface with a shaft. The button is loosely fitted on the support base 5 in an uneven relationship and is disposed so as to be tiltable left and right.

Then, the printed circuit board 1 is covered, a rectangular through hole 6 is provided in the center, and each contact
A plurality of operation buttons 7 provided with a contact (not shown) for short-circuiting the three to close an electric circuit are integrally formed by an elastic member 8.

A frame body having a plurality of through holes 9 around which the operation buttons 7 of the elastic member 8 protrude is formed, and a rectangular through hole 10 in which a waveform button as the operation section 4 is disposed at a substantially central portion. The switch body 11 is assembled by fitting the printed circuit board 1 with the printed circuit board 1 in an uneven relationship.

An upwardly protruding wall frame 12 is formed around a rectangular through hole 10 provided substantially at the center of the frame body 11.

The operation unit 4 having a waveform provided substantially at the center and the operation buttons 7 provided around the operation unit 4 are arranged with a step 13.

As described above, an appropriate step 13 is provided between the operation part 4 in the substantially central part and a large number of operation buttons 7 provided around the operation part 4, and furthermore, the outer periphery of the central operation part 4 is provided. By providing the wall frame 12, it is possible to completely prevent an erroneous operation of operating the operation button 7 simultaneously with the operation unit 4 even if the operation unit 4 at the center and the operation button 7 at the outer periphery are close to each other. It is.

FIG. 2 (a) is a front view showing a second embodiment of the small keyboard switch according to the present invention, in which an inclined surface 21a descending from an operation unit 4 which is a waveform-operated operation button disposed in the center. Is formed, and the inclined surface 21 is formed.
In FIG. 2, a plurality of operation buttons 7 are arranged. When the operation unit (waveform button) 4 arranged in the center is operated from such a configuration, the finger operates only the waveform button 4 as shown in FIG. 7 are not pressed simultaneously.

FIG. 3 is a perspective view of a waveform button as the operation unit 4, in which a contact 4a is disposed at the tip of the waveform button 4, and elastic pieces 4b are integrally formed on the left and right lower surfaces. I have. This elastic piece 4b is for automatically returning the waveform button 4. Note that the elastic piece 4b is merely an example, and a coil spring or a leaf spring may be provided to automatically return the elastic piece 4b.

FIG. 4 is a plan view showing a third embodiment of the small keyboard switch according to the present invention.
, The switch body is formed in a round shape, a round waveform button 24 is provided substantially at the center, and a plurality of operation buttons 27 are provided on the outer periphery thereof.

FIG. 5 is a perspective view showing an example of use of the small keyboard switch according to the present invention, which is connected to a key using a solenoid 32. A small keyboard switch is provided in which an operation unit 34 divided into four parts and operation buttons 37 divided into eight parts around the operation part 34 are arranged.

Then, the password is stored by the operation button 37, and by pressing the operation button of the password, the solenoid 32 is operated by a circuit such as an IC provided in the switch body to move the sliding piece 33. The key can be closed by moving the sliding piece 33 into the recess.

In the embodiment of the present invention, a memory (M) and a clear (C) are provided in an operation unit provided substantially at the center of the switch body.
And other important keys are arranged, and keys around the keys for setting are arranged around the key. However, various other arrangements are conceivable.

It should be noted that the present invention is not limited to the above-described embodiment, and various modifications are possible based on the gist of the present invention, and they are not excluded from the scope of the present invention.

[0023]

As described above, according to the present invention, the following effects can be obtained.

(1) An operation section is provided substantially at the center of the switch body, and a large number of operation buttons are provided around the operation section.
It is possible to provide a small keyboard switch that is small and easy to operate without simultaneously pressing a plurality of operation buttons.

(2) Despite the fact that the operation buttons are densely packed for miniaturization, a step is provided between the operation part in the center and the operation button surface provided on the outer periphery of the operation part. An erroneous operation of pressing the operation button can be prevented, and the effect that the erroneous operation can be further prevented can be obtained by providing the protruding wall on the outer periphery of the substantially central operation portion.

(3) Since the operation section is provided substantially at the center of the switch body and a plurality of operation buttons are also arranged on the circumference of the operation section, the apparatus can be manufactured in a small size, especially in a thin form. A small keyboard switch that does not take up any space for installation and that is easy to install that matches the design of the entire device can be obtained.

(4) Since an operation section is provided substantially at the center of the switch body and a large number of operation buttons are provided around the operation section, an important operation section can be provided substantially at the center. In addition, it is possible to provide a small keyboard switch having a rational arrangement that is not ergonomically overlooked.

(5) By providing a waveform button as an operation section substantially at the center of the switch body and by arranging a plurality of operation buttons on the circumference of the waveform button, the operation buttons are operated in a similar manner, and the surrounding operation buttons are provided. A small keyboard switch that is not erroneously operated by touching a finger together with another operation unit at the time of operation, despite the proximity of the switch.

[Brief description of the drawings]

FIG. 1A is a front view showing a first embodiment of the small keyboard switch according to the present invention, and FIG. 1B is an exploded perspective view showing the first embodiment of the small keyboard switch according to the present invention. (C) is a plan view showing the first embodiment of the small keyboard switch according to the present invention.

2A is a front view showing a second embodiment of the small keyboard switch according to the present invention, and FIG. 2B is a perspective view showing the second embodiment of the small keyboard switch according to the present invention. is there.

FIG. 3 is a partially cutaway perspective view showing one embodiment of the waveform button according to the present invention.

FIG. 4 is a plan view showing a third embodiment of the small keyboard switch according to the present invention.

FIG. 5 is a perspective view showing an example of use of the small keyboard switch according to the present invention.

FIG. 6 is a plan view of a conventional keyboard switch.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Printed circuit board 2 ... Circuit pattern 3, 4a ... Contact 4, 24, 34 ... Operation part (waveform operation button) 5 ... Support base 6, 9, 10 ... Through-hole 7, 27, 37, 47 ... Operation button 8 ... Elastic members 11, 21, 31, 41 ... Frame body 12 ... Wall frame 12a ... Inclined surface 13 ... Step 14 ... Terminal 15 ... IC 32 ... Solenoid 33 ... Sliding piece 35 ... Lead wire

Claims (1)

(57) [Scope of request for utility model registration] 1. A printed circuit board having at least one
The two first operation buttons are arranged and the first operation button
Forming a circuit pattern and a plurality of first contacts in the enclosure;
The first operation button is inserted in the center part while covering the lint board.
A through hole is provided between the first contacts around the through hole.
A second contact that closes the circuit by shorting between corresponding contacts of the second contact
A plurality of operation modes different from the first operation button are provided.
A second operation button having an integrally formed elastic member;
A plurality of through holes from which the second operation button of the elastic member projects
The first operation button is inserted in a substantially central portion formed around the periphery.
A frame provided with a through-hole,
The switch body is formed by mating with the board
Around the first operation button in the switch body
A step, and descend toward the outside of the first operation button.
A small keyboard switch characterized by having an inclined surface .