JPS62271402A - Input key of 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 (Field of Industrial Application) The present invention relates to input keys for keyboard devices installed in terminals, personal computers, word processors, and the like.

(Prior art) Conventionally, this type of input key has a uniform structure, including letters, numbers, 1 special operation keys, etc. arranged on the console, and can only be operated once. Simply connect the circuit tON
It only had the function of turning on 10FF or continuously.

FIGS. 4(a) and 4(b) show a conventional input key having such a structure.

The input terminal shown in the figure has a structure in which when the operation button 1t is pressed, the contact switch 2 is pushed down, contacts a pair of contacts 3.4, and conducts between these contacts. A signal input circuit (not shown) in the keyboard device connects to connection terminal 5alt.
Contact al through Saz.

a! When the contact switch 2 is pressed down and conduction occurs between the contacts 3 and 4, the contact switch 2 is turned on and outputs a predetermined input signal to the main circuit of a terminal, personal computer, word processor, etc.

In addition, the suppression of operation button 1 is released, and contact switch 2 is released.
is pushed up by the biasing force of the compression spring 6 and turns OFF when 9.
becomes.

(Problems to be Solved by the Invention) The conventional input key described above is 0N10F of the signal input circuit.
Since the structure was only for F switching, when the cursor shift key, the ROLLUP/DOWN key on a CRT screen, etc. require continuous manual input, only constant speed signal input is possible. Mourning has the problem of lack of operability, such as the long time it takes to call up a distant negative.

The present invention has been made in order to solve the above-mentioned problems, and its purpose is to provide a keyboard device capable of improving operability by making it possible to vary the signal output speed of a signal input circuit as an operation target. The purpose is to provide an entry key.

(Means for Solving the Problems) In order to achieve the above object, the present invention includes at least one pair of connection terminals, and a first contact member having a constant length connected to one of the pair of connection terminals. , a second contact member having a certain length that is arranged in parallel with the first contact member and connected to the other of the connection terminals; and a switch member that is movable in the length direction while providing electrical continuity between the contact members. and at least one of the first and second contact members is formed of a resistor, and when the contact member and the switch member move, the resistance between the pair of connection terminals increases. This configuration has a variable resistance structure that changes the value.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1(a) is a front sectional view showing the input terminal of the keyboard device according to the present embodiment, FIG. 1(b) is a front sectional view showing a state in which the contact members of the doujin key are short-circuited, is a doujin oyster
FIG. 3 is a plan view showing the key arrangement on the keyboard device when the doujin kaki is used as a kernel shift key.

In the drawings, IO is a key body having a hollow part.

First and second contact members 11, 12 having a constant length are provided facing each other on the inner side wall of the main body 1O. Each of these contact members 11 and 12 is made of a resistor that exhibits a resistance value depending on its length.

Therefore, if any intermediate portion of each contact member 11, 12 is short-circuited, the upper end (or lower end) of one contact member 11
to the upper end (or lower end) of the other contact member 12 exhibits a resistance value corresponding to the length from the upper end (or lower end) of each contact member 11.12 to the short-circuited intermediate portion.

If the short-circuited portion is moved in the length direction, this resistance value changes according to the change in length from the upper end (or lower gs) to the shorted portion.

A connection terminal 13a1 is connected to the upper end of the first contact member 11, and a connection terminal 13b is connected to the lower end.

On the other hand, the connection terminal 13 is located at the upper end of the second contact member 12.
Connection terminal 11 paired with 1L1! However, at the bottom end is the above-mentioned connection 4 piece 13b.

and the pair of connection terminals 13b are connected to each other. These connection terminals 13a+, 13&g and 13b
A signal input circuit (not shown) is connected to each of 1 and 13b.

In addition, each contact member 11 in the hollow part of the key body lO
', 12, an insulating space 10a is secured.

14 is a switch member fixed to the lower end of the operation button l. This switch member 14 moves in the length direction between the first and second contact members 11.12 as the operating button 1 is pressed, thereby short-circuiting these contact members 11.12. Connection terminal 13 &.

-13a, between and connection terminal 13 bt 13 b
.

The space between them indicates the resistance value depending on the short circuit position. This resistance value changes as the switch member 14 moves. That is, each contact member 11, 12 and switch member 14
and between the connecting terminals 13a1-13&, and 1
A variable resistance structure is formed between 3bs and 13bs.

Further, the switch member 14 is urged in the upward direction by the compression spring 15, and therefore, when the pressing force on the operation button l is released, it is pushed upward and reaches the insulating space lO&, and each contact member 11. I will leave the 12-ma.

Note that 16 applies a biasing force in the opposite direction to the compression spring 15 to the switch member 1 when in an insulated state (the state shown in FIG. 1(a)).
The spring acting on the lever 4 is provided to prevent the operation button l from wobbling.

When the input key 1 of the keyboard device having the above-mentioned configuration is used as a cursor shift key, it is arranged on the keyboard device as shown in FIG.

Next, the operation will be explained.

Apply an appropriate pressing force to the operation button 1 and press the switch member 14.
When moved to any part of each contact member 11.12,
At that point, the contact members 11 and 12 are short-circuited, and each pair of connection terminals 13al-13a! between, and 13
b, -13b, and are electrically connected. Then, nine signal input circuits (not shown) connected to these connection terminals 13a1, 13a, 13b1, and 13b are closed, and continuous input signals are output. This output is connected to the connection terminal 13a
1 ・l 3 a.

Regarding the signal input circuit connected to the first contact member 1
1 from the upper end of the second contact member 1 via the switch member 14.
The signal input circuit connected to the connection terminals 13b1 and 13b is set to a level corresponding to the resistance value shown by the line up to the upper end of the first contact member 11 via the switch member 14. This level is determined according to the resistance value shown by the line up to the lower end of the second contact member 12.

When the switch member 14t is moved to change the short-circuited portion of each of the contact members 11 and 12, the resistance value shown by each of the lines changes, and the output level of each signal input circuit changes correspondingly. Here, when the switch member 14 is moved downward, the connection terminal 13a.

- The output level of the signal input circuit connected to connection terminal 13b1 decreases, and the output level of the signal input circuit connected to connection terminal 13b increases.

Furthermore, when the switch member 14 is moved upward, the opposite change occurs.

Therefore, by operating the operation button 1 to adjust the moving position of the switch member 14, it is possible to input KF4 at a desired speed using a single input key l.

Note that the present invention is not limited to the above-described embodiment. For example, only one of the first and second contact members may be made of a resistor, or a connecting terminal may be connected only to the upper end or only to the lower end of each contact member.

(Effects of the Invention) As explained above, the input key of the keyboard device of the present invention has at least one of the first and second contact members made of a resistor, and the contact member and the switch member. Since a variable resistance structure is formed in which the resistance value between the pair of connection terminals connected to each contact member is changed by the movement of the switch member, the signal output speed of the signal input circuit connected to the connection terminal can be changed. It is variable and has excellent operability.

[Brief explanation of drawings]

FIG. 1 (ca) is a front sectional view showing the input key of the 1000-board device according to the embodiment of the present invention, and FIG. Figure 2 is an electrical connection diagram of the Doujin Kaki, Figure 3 is a plan view showing the key arrangement on the Sen-Board device when the Doujin Kaki is used as a cursor shift key, and Figures 4 (a) and (b). 1 is a diagram showing a conventional example. lφ...Operation button 10...Senichi main body 11...-Contact member 12...Second contact member 13al t13a! +13bI, 13J”
...Connection terminal 14・a+1 Switch member 15...Compression spring 1611 Spring 1F...Input key

Claims (1)

[Claims] at least one pair of connection terminals, a first contact member having a certain length connected to one of the pair of connection terminals, and provided in parallel with the first contact member and connected to the other of the connection terminals; a second contact member having a fixed length, and a switch member movable in the length direction while conducting between the contact members, and at least one of the first and second contact members is connected to a resistor. An input key for a keyboard device, characterized in that the contact member and the switch member form a variable resistance structure that changes the resistance value between the pair of connection terminals by movement of the switch member.