JPS5853769B2 - magnetic letter blocks - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic character block suitable for reproducing character information recorded in a magnetic sheet in an input device for manually selecting characters.

In the future, as the information society progresses, various types of information,
For example, it is thought that kanji, etc., will be used in many cases.

Therefore, there is a need for a device for easily inputting kanji into a computer.

As an example of this input device, we previously proposed a method using a pen with a built-in rotating magnetic head (Japanese Patent Application No. 52-83
(See No. 117).

FIG. 1 is a configuration diagram showing the principle. In FIG. 1a, 1 is a magnetic pen and 2 is a dial.

An enlarged view of the magnetic pen 1 is shown in FIG.

3 is a rotating magnetic head, which is connected to a motor 4 and rotates with a radius R.

The output terminal 5 of the rotary magnetic head 3 is electrically connected to the lead wire 51 of the magnetic pen 1 via appropriate means.

On the other hand, the dial 2 of FIG. 1A is composed of a character display layer 6, a magnetic layer 7, a plastic film layer 8, and a base layer 9, as shown in detail in FIG. 1C.

In the magnetic layer 7, a circular magnetic track 11 with a radius R is preliminarily provided with a kanji code or a dot pattern code of the character corresponding to the character displayed on the character display layer 6, as shown in FIG.
Record it in

Hereinafter, the magnetic layer 7 and the plastic film layer 8 will be collectively referred to as a magnetic sheet 10.

Next, the operation when reading this character will be explained.

When a character to be input is touched with the magnetic pen 1, the motor 4 rotates, and the information recorded in the magnetic trunk 11 is magnetically induced in the rotating magnetic head 3, and is sent to the output terminal 51 as an electrical signal. is read out.

The magnetic recording and reproducing principles of this device are similar to those of conventional recorders, but the magnetic track 11 is not straight but circular.

The biggest problem with such an input device is to maintain a constant magnetic gap between the magnetic sheet 10 and the rotating magnetic head 3, and to keep the center of the previously recorded circular magnetic trunk 11 and the center of the rotating magnetic head 3 constant. The key is how to keep the amount of restraint to a minimum.

Since the input device mainly requires manual operation of the magnetic pen 1, it is necessary to solve these problems.

If the magnetic gap is not constant, the level of the output electrical signal will vary and accurate information will not be obtained.

In addition, if the amount of eccentricity is large, there is a drawback that the portion scanned by the rotary magnetic head 3 and the magnetic track 11 become misaligned, and recorded information and reproduced information do not match.

This invention was made to eliminate these drawbacks, and includes a magnetic sheet supported by an elastic support such as a foam material, and an outer frame that serves as a guide for accurate positioning of the magnetic pen. is provided on the substrate.

The present invention will be explained in detail below with reference to the drawings.

FIG. 3 shows an embodiment of the magnetic character block according to the present invention, and its cross-sectional views taken along lines AA, BB, and C-C are shown in FIGS. 4a-c, respectively.

In these figures, 21 is a magnetic sheet piece corresponding to one character, and a magnetic layer is provided on a plastic film piece.

22 is a character display piece. 23 is a foam support piece having adhesive layers on both sides, and the magnetic sheet piece 21 is adhered to one side thereof.

Reference numeral 24 denotes a concave support body, which is composed of a substrate 25 and an outer frame 26 integral with the substrate 25, and the foam support piece 23 is adhered to the substrate 25 at the bottom.

The outer frame 26 of the support body 24 has notches 27 at four corners, and the support body 24 is provided with a protrusion 28 at one corner and recesses 29 at three corners.

A magnetic character block is thus formed.

FIGS. 5a and 5b show an example in which these magnetic character blocks are arranged on the input board 30 (only four blocks are shown).

The operation of the magnetic character block formed in this way will be explained next.

First, the magnetic character blocks are one block for each character, and can be said to correspond to conventional Japanese type printing.

These magnetic character blocks can be freely arranged on the input board 30 surface.

Therefore, when these are arranged in a matrix, the protrusions 28 and recesses 29 provided on each magnetic character block are fitted and integrated to form the dial plate 2 shown in FIG. 1.

In such a dial plate 2, when the magnetic pen 1 is pressed against a character to be input, the motor 4 rotates, and the rotating magnetic head 3 and the magnetic sheet piece 21 are subjected to appropriate stress due to the elastic force of the foam support piece 23. , and the magnetic gap becomes constant.

Further, the magnetic pen 1 rotates while being inscribed within the outer frame 26 using the outer frame 26 as a guide.

Therefore, if the position of the magnetic sheet piece 21 is set so that the center of the magnetic track recorded in advance on the magnetic sheet piece 21 matches the center of the circle inscribed in the outer frame 26, the center of the magnetic track and the magnetic pen 1 can be adjusted. The amount of eccentricity is very small.

It is clear that this magnetic character block can be applied not only to one character but also to various items.

According to the above configuration, firstly, the magnetic gap between the rotating magnetic head 3 and the magnetic sheet piece 21 is kept constant by the elastic force of the foam support piece 23, so the output electric signal level becomes constant and the electric The detection circuit becomes simpler.

Secondly, by providing the outer frame 26 on each support body 24,
Since the magnetic pen 1 can be easily positioned, operability is improved, and recorded information can be read accurately.

Furthermore, since the amount of eccentricity is small, the recording density can be increased, and even character codes and character pattern codes can be recorded.

Therefore, it is possible to realize an input device equipped with a simple display or the like.

Thirdly, since the individual magnetic character blocks shown in FIG. 3 are independent, a dial plate in any arrangement can be constructed.

Therefore, the character arrangement can be rearranged for ease of use by the user, and a dial board that is easy to operate can be obtained.

Fourthly, the magnetic character block is mainly made of plastic material and can be constructed with a laminated structure of sheets.
It is easy to construct a lightweight and inexpensive input device.

Fifth, if a notch 27 is provided in a part of the outer frame 26, even if powder such as chips falls onto the board surface, it can be easily removed without accumulating in the corners.

As explained above, the magnetic character block of the present invention elastically holds the rotating magnetic head and the magnetic sheet, and is provided with an outer frame that serves as a guide to uniquely determine the center of rotation of the magnetic pen. Therefore, these input devices can be operated stably.

Moreover, since the input characters are individually divided into blocks, their arrangement can be changed freely.

Furthermore, code information for input characters can be entered by simply touching the surface of the magnetic character block using an input pen with a rotating magnetic head, and these input devices have the advantage of being lightweight and inexpensive. .

[Brief explanation of the drawing]

Figure 1 is a configuration diagram showing the principle of a magnetic pen input device.
Figure a is a perspective view, Figure 1 is a top view of the dial, Figure 1 C is an enlarged sectional view of the dial, Figure 2 is an enlarged perspective view showing the configuration of the magnetic pen shown in Figure 1, Figure 3 The figure shows a magnetic character block showing one embodiment of the present invention; Figures 4a, b, and c are cross-sectional views taken along line A-A, line B-B, and line C-C in Figure 3, respectively; Figure 5a , b are a schematic plan view and a cross-sectional view taken along the line D--D showing a structure in which the magnetic character blocks shown in FIG. 3 are arranged on an input board and used as a dial board. In the figure, 1 is a magnetic pen, 2 is a dial, 3 is a rotating magnetic head, 21 is a magnetic sheet piece, 22 is a character display piece, 23 is a foam support piece, 24 is a support, 25 is a substrate, and 26 is an outer frame, 2
7 is a notch, 28 is a projection, 29 is a recess, and 30 is an input board.

Claims (1)

[Claims] 1. A character display piece, a magnetic sheet piece in which character code information of the characters displayed on the character display piece is recorded in a circular track shape, an elastic support piece, and a substrate for supporting the character display piece are laminated. The substrate is provided with an outer frame that surrounds the magnetic sheet piece and guides the magnetic pen, and also includes recesses and protrusions that can be coupled or separated from each other when the substrates are adjacent on a flat plate. A magnetic character block characterized by being provided on a board.