JPH0242590A - Magnetic card device - Google Patents

Abstract

PURPOSE:To accurately change a recording density to a card, to prevent reading by means of the other device, and to improve safety by controlling sending speed with a stepping motor when magnetic card data are read and written. CONSTITUTION:After the reading of a magnetic tape 14 of a magnetic card 12 is completed, a stepping motor 18 is rotated in the reverse direction to an arrow B. Then, axes 22, 28 and 30 and a roller 16 rotate in the reverse direction to the arrow shown in a figure, and the card 12 is sent in the reverse direction to an arrow A. When the contents of the tape 14 are updated at the time of the sending, a magnetic head 10 writes the new contents. At such a time, by changing the number of impressing pulses per unit time to the motor 18, the recording density to the tape 14 can be easily changed. Thus, the recording contents of the tape 14 cannot be read by the other magnetic device.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a magnetic card device.

(Conventional technology) FIG. 2 shows an overview of a conventional magnetic card device.

100 is a magnetic card, and a magnetic tape 102, which is a magnetic recording medium, is attached to the surface of the card. This magnetic tape 1
For example, in the case of a bank cash card, the personal identification number and account number are magnetically recorded on the 02.

104 is a magnetic head, and when the magnetic card 100 is fed by rollers 106...
The second side is contacted to read out the password etc. recorded on the magnetic tape 102.

10B is a DC motor, which has a belt 110 and a pulley 11.
2, the rotation speed is reduced to a predetermined rotation speed, and the pulley 11
4... and the roller 106 via the belt 116...
...is driven at a predetermined rotation speed. This roller 106
The speed at which the magnetic card 100 moves forward and backward relative to the magnetic head 104 is determined by the rotational speed of the magnetic card 100. magnetic card 10
The reason why the speed of forward and backward movement with respect to the magnetic head 104 of 0 is constant is that the density of data recorded on the magnetic tape 102 is, for example, 2108P1 (Bits Per
This is because it is determined as (Inch). The forward and backward movement of the magnetic card 100 is switched by changing the direction of the current applied to the DC motor 108 by a control means (not shown).

(Problems to be Solved by the Invention) However, the above conventional magnetic card device has the following problems.

Since the recording density of magnetic recording media is determined by the JIS standard, although the devices are compatible, it is not possible, for example, to read the contents recorded on the magnetic recording medium of another person's magnetic card or rewrite the recorded contents. However, there are security issues. Therefore, a method was proposed to change the recording density on the magnetic recording medium by changing the rotation speed of the DC motor, but delicate adjustment of the rotation speed of the DC motor is troublesome, and the adjustment work is inefficient and increases costs. There is also an issue from an economical point of view.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a magnetic card device that can easily and precisely adjust the speed at which a magnetic card moves forward and backward relative to a magnetic head.

(Means for solving problems) In order to solve the above problems, the present invention has the following configuration.

That is, a magnetic head is fixed at a predetermined location and reads data from and/or writes data to a magnetic recording medium provided on a magnetic card fed into the magnetic card; A conveying means for moving the card forward and backward, and a stepping motor for driving the conveying means at a predetermined speed at least when reading data from the magnetic recording medium and/or writing data to the magnetic recording medium. and a control means for controlling the rotational direction, rotational speed, etc. of the stepping motor.

(effect) The effect will be explained.

By changing the number of input pulses to the stepping motor using the control means, the number of rotations of the stepping motor can be changed easily and accurately. Therefore, the speed of the transport means and the speed of the magnetic card that moves forward and backward with respect to the magnetic head can be easily and accurately changed by the transport means, and the recording density on the magnetic recording medium can be changed as well. .

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, the configuration will be explained.

In FIG. 1, reference numeral 10 denotes a magnetic head, which is fixed at a predetermined location on the main body of the apparatus. The magnetic head 10 is in contact with the surface of a magnetic tape 14, which is a magnetic recording medium of a magnetic card 12, which is fed in the direction of arrow A by a conveying means to be described later, and reads the recorded content (magnetically recorded) on the magnetic tape 14. data) or write new data onto the magnetic tape 14.

16 is a roller that is an example of a conveyance means, and by moving (feeding) the magnetic card 12 in the direction of arrow A, the magnetic tape 14 of the magnetic card 12 and the magnetic head 10 approach each other, and the magnetic card By moving (feeding out) the magnetic tape 12 in the direction opposite to the arrow A, the magnetic tape 14 and the magnetic head IO are separated. Therefore, this roller 16.
The magnetic card 12 moves forward and backward relative to the magnetic head 10 by being driven.

Reference numeral 1 and 8 denote a stepping motor, and its rotation speed and rotation direction are controlled by controlling the number of pulses applied and the direction of current by a control means (not shown).

Reference numeral 20 denotes a speed reduction mechanism that reduces the rotational speed of the stepping motor 18 at a predetermined reduction ratio and rotates the shaft 22 at a predetermined rotational speed.

24... is a timing belt, and pulley 26...
- By passing the rack over the shafts 28 and 30, the shafts 28 and 30 are also rotated at the same speed and in the same direction as the shaft 22.

The operation of the magnetic card device configured as described above will be explained.

First, reading of the magnetic tape 14 from the magnetic card 12 will be described. When the magnetic card 12 is sent in, the control hand
L (not shown) rotates the stepping motor 18 in the direction of arrow B. Then, the rotation of the stepping motor 18 is decelerated by the deceleration mechanism 20, and the shaft 22 rotates in the direction of arrow C at a predetermined rotation speed. When the shaft 22 rotates, the shafts 28, 30 connected by the timing belts 24... also rotate in the same direction as the shaft 22 and at the same rotation speed. Then each roller 1
6... rotate in the directions of the arrows shown in FIG. 1, so the magnetic card 12 advances in the direction of arrow A.

At this time, the magnetic head 10 comes into contact with the surface of the magnetic tape 14, and reads out the contents recorded on the magnetic tape 14 as the magnetic card 12 moves in the direction of arrow A.

When reading from the magnetic tape 14 is completed, the control means (
(not shown) rotates the stepping motor 18 in the direction opposite to arrow B. Then shaft 22, 28, 30 and roller 1
6... rotate in the direction opposite to each arrow shown in FIG. 1, and the magnetic card 12 is sent out in the direction opposite to arrow A. During this sending, if the recorded contents of the magnetic tape 14 are to be updated, the magnetic head 10 writes new contents.

To change the recording density on the magnetic tape 14, the number of pulses applied to the stepping motor 18 may be changed using a control means (not shown). Since the rotation speed of the stepping motor 18 can be changed simply by changing the number of applied pulses per unit time, the speed at which the magnetic force field 12 moves forward and backward can also be changed, and the recording density on the magnetic tape 14 can be changed. .

This makes it possible to easily create, for example, a magnetic card provided with a magnetic tape having a different recording density from the magnetic cards used in other groups or group groups. Therefore, even if the magnetic card used in the magnetic card device of this embodiment is used in a magnetic card device used in another group or group group, it will not be possible to read out the recorded contents of the magnetic tape.

Although the magnetic pole head was fixed in this embodiment, it is also possible to fix the inserted magnetic card at a predetermined position and move the magnetic head using a stepping motor.

Although various preferred embodiments of the present invention have been described above, the present invention is not limited to the above-mentioned embodiments, and it goes without saying that many modifications can be made without departing from the spirit of the invention. be.

(Effects of the Invention) By using the magnetic card device according to the present invention, it is possible to easily and accurately change the speed of movement of the magnetic card toward and away from the magnetic head. Therefore, the recording density on the magnetic recording medium can be easily and accurately changed, and other magnetic card devices cannot read the recorded contents, improving safety.

In addition, since the recording density of the magnetic card device itself can be easily adjusted, adjustment is almost unnecessary, and costs can be reduced.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an overview of a magnetic card device according to an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing an overview of a conventional magnetic card device. 10...Magnetic head, 12...Magnetic card,
14...Magnetic tape, 16...Roller,
18...Stepping motor.

Claims (1)

[Claims] 1. A magnetic head fixed at a predetermined location and reading data from a magnetic recording medium provided on a fed magnetic card and/or writing data to the magnetic recording medium; a transport means for moving the magnetic card forward and backward relative to the head; and a transport means for moving the transport means at a predetermined speed at least when reading data from the magnetic recording medium and/or writing data to the magnetic recording medium. A magnetic card device comprising: a stepping motor for driving the stepping motor; and a control means for controlling the rotation direction, rotation speed, etc. of the stepping motor.