JPH04277813A - Keyboard device - Google Patents

Abstract

PURPOSE:To effectively utilize the upper face of a keyboard excepting for the case of using the keyboard as the input device of an electronic computer. CONSTITUTION:When the tip of a magnetic input pen 1 is pushed to an input instructing position on an instruction panel 6, a current flows from a battery 5 to a coil 3 since the iron core 2 of the pen 1 is pushed so as to compress a spring 4 and one end of the coil 3 is connected to the electrode of the battery 5. When the current flows in the coil 3, the iron core 2 is turned to an electromagnet and attracts a switch 8 arranged on the back of the instruction panel 6 for which the iron core 2 is pushed, the switch 8 is connected to a keyboard scan line 7, and the keyboard scan line 7 and a scan output line 8 are conducted.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyboard device, and more particularly to a keyboard device suitable for use as an input device for a computer.

0002

[Prior Art] Conventionally, this type of keyboard device has a plurality of sets of keys supported by springs and key switches that are turned on when the keys are pressed down, and corresponds to the characters that the operator wants to input. When a key was pressed down, the specified key switch became conductive.

0003

[Problems to be Solved by the Invention] In the above-mentioned conventional keyboard device, since a plurality of keys supported by springs are arranged, the top surface of the keyboard device moves up and down, making it unstable. There was a problem in that it was not possible to place or work on the top surface.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a keyboard device whose top surface can be effectively used when the keyboard device is not used as an input device for a computer.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the invention according to claim 1 provides a magnetic indicator member having a magnet at its tip and supplying magnetic force to a specified position, and a magnetically permeable member in the form of a flat plate. an indicator board having a plurality of input instruction positions displayed on its surface; and a magnetic switch disposed on the back side of each input instruction position on the indicator board to make the corresponding line conductive when magnetic force is supplied. There is a structure.

[0006]

[Operation] In the invention according to claim 1 configured as described above, when the input instruction position displayed on the flat indicator board is indicated by the magnetic indicator member equipped with a magnet at the tip, the input instruction position displayed on the flat indicator board is displayed. A magnetic switch placed on the back side of each input instruction position makes the corresponding line conductive.

[0007]

Embodiments Hereinafter, embodiments of the present invention will be explained based on the drawings. FIG. 1 is a sectional view of a keyboard device according to an embodiment of the present invention, viewed from the side.

In the figure, 1 is a magnetic input pen;
Inside the cylinder, an iron core 2 is wound around a coil 3, and a spring 4 presses the tip of the iron core 2 toward the outside of the cylinder. A battery 5 is provided inside the magnetic input pen 1, and when the iron core 2 is pressed against the spring 4 into the tube, a current flows from the battery 5 to the coil 3, and the iron core 2 becomes an electromagnet.

On the other hand, the instruction panel 6 is formed of a magnetically permeable member into a flat plate shape, and input instruction positions are displayed in a grid pattern on the surface of the instruction panel 6 in the same arrangement as the keyboard. A plurality of keyboard scan lines 7 are arranged on the back side of the instruction panel 6, and a plurality of switches 8 made of conductive magnetic material are arranged.
is connected to the scan output line 9 via a spring 10, and the switch 8 is disposed corresponding to the input instruction position.

FIG. 2 is a transparent perspective view showing the positional relationship among the keyboard scan line 7, switch 8, and scan output line 9, and FIG. FIG. 2 is a perspective view showing a state in which the computer 13 is installed and used in a desk.

Next, the operation of this embodiment having the above configuration will be explained. The operator follows the display on the instruction panel 6 and presses the tip of the magnetic input pen 1 to the input instruction position where the character to be input is written.

Then, the iron core 2 of the pen 1 is connected to the spring 4.
is compressed, and one end of the coil 3 is connected to the electrode of the battery 5. Since the other end of the coil 3 is connected to the other electrode of the battery 5 in advance, by pressing the magnetic input pen 1 onto the indicator panel 6, the coil 3 is disconnected from the battery 5.
A current flows through.

When current flows through the coil 3, the iron core 2 becomes an electromagnet and attempts to attract the switch 8 disposed on the back surface of the indicator panel 6 against which the iron core 2 is pressed. Normally, the switch 8 is supported by a spring 10 at a position away from the keyboard scan line 7, but when it is attracted by the iron core 2, which is an electromagnet, it is connected to the keyboard scan line 7. and the scan output line 9 are electrically connected.

Each keyboard scan line 7 and scan output line 9 in the keyboard device is connected to a computer 13, and the computer 13 scans each line to determine which line is conductive. Processes as if the code such as the corresponding character has been input.

[0015]

Effects of the Invention As explained above, the present invention allows input using an instruction panel whose surface is formed into a flat plate, so that the upper surface can be used when not being used as an input device for an electronic computer. A keyboard device that can be used effectively can be provided.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a keyboard device according to an embodiment of the present invention.

FIG. 2 is a perspective view of the keyboard device.

FIG. 3 is a perspective view of an electronic computer system to which a keyboard device is applied.

[Explanation of symbols]

1...Magnetic input pen 2...Iron core 6...Instruction board 7…Keyboard scan line 8...Switch 9...Scan output line

Claims (1)

[Claims] Claim 1: A magnetic indicator member having a magnet at its tip and supplying magnetic force to a specified position; an indicator board formed of a magnetically permeable member into a flat plate shape and displaying a plurality of input instruction positions on its surface; What is claimed is: 1. A keyboard device comprising: a magnetic switch disposed on the back surface of each input instruction position on a board, which makes a corresponding line conductive when magnetic force is supplied.