JPH03129510A - Keyboard - Google Patents

Abstract

PURPOSE:To obtain an easily usable keyboard by providing the keyboard with contacts corresponding to the input wires of a wiring board and connected to the input wires and the output contacts of key switches contacted with the contacts. CONSTITUTION:When a certain keyboard switch 3 is depressed for instance, a jumper line 4e is formed so that two contacts out of contacts 4d are short- circuited. Namely the same state as the short-circuit of the two shown adjacent contacts occurs. Thereby one of common lines of the input wires is connected to one input line by the short-circuit and a signal corresponding to the connection is sent. Even if the arrangement of the keyboard switches having said construction is changed, a signal corresponding to a certain name can be transmitted by depressing the keyboard switch having the name. Thus, the positions of respective keyboard switches can be changed so that an operator can easily handle the keyboard.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a keyboard, and particularly to the arrangement of key switches.

[Conventional technology]

FIG. 2 is a perspective view of a conventional sub-keyboard. Conventionally, in this type of keyboard, for example, a sub-keyboard as shown in FIG. 2, key switches 3 having a large number of designated names are mounted on the surface of a panel 2 in a standardized arrangement. Further, this sub-keyboard is usually attached alongside a main keyboard (not shown). Furthermore, the output of the keyboard switch 3 including this sub-board was performed via an input cable 4 connected to the computer main body.

[Problem to be solved by the invention]

Even with the above-mentioned conventional keyboards, such as sub-keyboards, the keyswitches are mounted in a standardized arrangement, so there is a drawback that the operator cannot easily change the arrangement of the keyswitches. Therefore, there is an inconvenience in that the operator himself cannot change the most frequently used key switch to his desired position.

An object of the present invention is to provide a keyboard that solves this problem.

[Means to solve the problem]

The keyboard of the present invention includes a panel on which a large number of key switches are arranged and mounted, and a wiring boat mounted on the bottom surface of the panel in which input wiring for transmitting input signals of the key switches is formed in a matrix shape. The keyboard has a contact corresponding to and connected to the input wiring of the wiring board, and an output contact of the key switch that comes into contact with the contact, and the panel and the key switch can be interchanged. It is said that

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a perspective view of a keyboard showing an embodiment of the present invention. Although this keyboard is shown as a sub-keyboard in the drawings, an example of the sub-keyboard will be explained below.

In this sub-keyboard, a positioning bin 4a is attached to the bottom of the keyboard switch 3,
A contact point 4d is provided with dimensions relative to this positioning pin 4a. Further, input wiring 6 for inputting the output from the keyboard switch 3 is wired in a matrix on the wiring board 5 attached to the lower part of the panel 2. Further, this wiring board 5 is provided with a hole 4b into which a contact 4c corresponding to each input wiring 6 and a positioning pin 4a of the keyboard switch 3 are inserted.

In this sub-keyboard, for example, when a certain keyboard switch 3 is pressed, a jumper wire 4e is formed so as to short-circuit two of the contacts 4d. That is, the same thing will happen if the adjacent contacts shown in FIG. 1 are short-circuited. Therefore, due to this short circuit, the common line of the input wiring and one input line become electrically connected, and a corresponding signal is sent. With this structure, even if the layout of the keyboard switches is changed, if a named keyboard switch is pressed, a signal corresponding to the name will be transmitted. Therefore, the position of the keyboard switch can be changed for ease of use by the operator. Further, a hook may be formed at the tip of the positioning pin 4a so that the positioning pin 4a cannot be easily removed from the hole 4b.

〔Effect of the invention〕

As described above, the present invention has the effect of providing a keyboard that is easy for the operator to use by providing a structure in which the keyboard switches can be easily rearranged.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a sub-keyboard showing an embodiment of the present invention, and FIG. 2 is a perspective view of a sub-keyboard showing a conventional example. DESCRIPTION OF SYMBOLS 1... Frame, 2... Panel, 3... Keyboard switch, 4... Input cable, 4a... Positioning bin, 4b... Hole, 4c, 4d... Contact, 4e...
...Jumper wire, 5...Wiring board, 6...Input wiring.

Claims (1)

[Claims] A keyboard having a panel on which a large number of key switches are arranged and mounted, and a wiring board on which input wiring for transmitting input signals of the key switches mounted on the bottom surface of the panel is formed in a matrix. A keyboard having a contact corresponding to and connected to the input wiring, and an output contact of the key switch that comes into contact with the contact, and wherein the panel and the key switch can be interchanged.