JPH0618021B2 - Keyboard input device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a keyboard input device used as an input device or a terminal device in an information system including a processing system such as an office computer and a communication system such as a teletex.

2. Description of the Related Art For example, a TSS terminal device of a computer, a personal computer, a word processor, or other interactive data processing device is widely used as a screen display terminal device (video display terminal; hereinafter referred to as VD).
(T is called) is used. The VDT is composed of a keyboard for inputting data, a screen display device for outputting data, and a terminal device main body for performing data processing such as input / output data processing and communication processing.

In recent years, there is a tendency to separate the keyboard from other elements of the device to improve the flexibility of the device layout and improve the operability. In addition, the keyboard housing is made thin so that it can be placed on a table, and its main surface is gently inclined (for example, around 7 degrees), and the keys are sculptured to reduce operator fatigue. Care has been taken.

FIG. 1 shows an example of such a VDT. This VDT
Is a screen display device 1, a keyboard 2, and a main body device 3.
The keyboard 2 is connected to the main body device 3 via the curl cord 4. In this example, the main unit 3 is
As an auxiliary storage device, a mini floppy disk device (for example, 1 MB / drive specified by the Dentsu Electric Corporation) is attached.
As shown in FIG. 2, the keyboard 2 has an inclination angle with respect to the desk surface 50 defined by pedestals 5a and 5b fixed to the lower portion thereof.

By the way, if the inclination angle of the keyboard 2 can be changed according to the usage conditions such as the physique of the operator and the habit of typing, the operability of the keyboard 2 is further improved. Therefore, conventionally, as shown in FIG. 3, a screw type foot 6 is provided on the rear portion of the keyboard 2.
And attach this foot to the arrow 5 by the rotary screw mechanism.
Keyboard 2 by putting it in and out as shown in 2
Although the one that can change the inclination angle of was put into practical use, the operation of setting the angle was complicated.

Aim The present invention solves the above-mentioned drawbacks of the prior art, and an object of the present invention is to provide a keyboard capable of easily changing the tilt angle.

Configuration The configuration of the present invention will be described below based on Examples.

One embodiment of the present invention is shown in FIG. 4, FIG. 5, FIG. 6 and FIG.
Shown in the figure. First, referring to FIG. 4, for example, a housing CA that constitutes the keyboard 2 of a teletex terminal device or the like.
There are openings 60, 62, for arranging keys and indicator lights.
64, 66, 68 are provided. Lower part C of case CA
A mechanism as shown in FIG. 5 is internally provided in B, and a shaft 12a is rotatably disposed in a lower portion CB of the casing CA.

Further, in FIG. 5, as shown in FIG. 6, the foot member 21 formed into a substantially U-shaped plate member is supported at a predetermined position by penetrating the shaft 21a as shown in FIG. There is. That is, the foot member 21 is supported by the shaft 21a so that when the shaft 21a rotates, the foot member 21 rotates in such a manner that the foot member 21 can be inserted into and taken out of the storage portion 22 as the shaft 21a rotates. Further, two longitudinal cuts CU1 and CU2 are formed in the shaft 21a in the circumferential direction.

Further, referring to FIG. 5, the keyboard input device is provided with a leaf spring 23 as shown in FIG.
The leaf spring 23 has an engaging portion 23a bent near one end, and the other end is attached to the housing CB by a screw 25 via a spacer 24. The locking portion 23a can be engaged with one of the cuts CU1 and CU2 formed in the shaft 21a of the foot member 21, and thereby the foot member 21 is positioned. The foot member 21 rotates about the shaft 21a as shown by the arrow 56 in FIG. 7 and is positioned at two angular positions. This changes the tilt of the keyboard.

As described above, according to the present invention, the inclination of the keyboard can be easily changed by a simple operation, so that it is possible to respond to the operator's preference and the usage status of the device such as the height of the desk top on which the keyboard is placed. The property is improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a VDT to which the present invention is applicable, FIGS. 2 and 3 are configuration diagrams showing a conventional example of a keyboard, and FIG. 4 is a casing of a keyboard in an embodiment of the present invention. 5 is a perspective view showing the body, FIG. 5 is a cross-sectional view showing an embodiment of the present invention, FIG. 6 is a perspective view illustrating the foot member in the embodiment of FIG. 5, and FIG. 7 is an embodiment of FIG. It is a perspective view which illustrated the leaf spring in. Explanation of symbols of main parts 12a ...... shaft 21 ...... foot member 22 ...... storage part 23 ...... leaf spring 23a ...... locking part

Claims (1)

[Claims] 1. A keyboard input device in which keys are arranged on a main surface of a housing, and an inclination angle of the housing with respect to a surface on which the housing is placed is set on a back side opposite to the main surface of the housing. Supporting means for adjustably supporting the housing is provided, and the supporting means extends substantially parallel to the main surface of the housing farther than the operating side of the key. It has a rotatable shaft, a foot member attached at a predetermined position of the shaft, and a leaf spring in pressure contact with a part of the shaft, and the shaft has a longitudinal cut in the circumferential direction. A plurality of bent portions are formed in the leaf spring at a portion in pressure contact with the shaft, the bent portion being engageable with any of a plurality of cuts formed in the shaft, and the shaft rotates to By engaging the bent portion of the leaf spring with one of the notches formed in the shaft, the foot portion Keyboard input device characterized in that it enabled lock the rotational position at a predetermined rotation angle position of.