JP3359418B2 - Magnetic head for visual card - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic card for displaying recorded contents in a visible manner, that is, a magnetic head for a visual card used for writing data on a so-called visual card.

[0002]

2. Description of the Related Art As is known from Japanese Patent Publication No. 56-852, a visual card is constructed such that data, which is the recorded content of the card, can be viewed on a display window of the visual card (hereinafter referred to as a card). Have been.

[0003] That is, a plurality of tracks, for example, seven tracks, are provided in the display window of the card, and numbers and symbols are displayed using a magnetic head corresponding to the tracks.

FIG. 2 shows a conventional magnetic head for a visual card (hereinafter referred to as a magnetic head) H '.
FIG. 2A is a plan view of the same, and FIG.
FIG.

The magnetic head H 'is connected to the display window C0 of the card C.
In this configuration, the same number of annular head type magnetizing elements m1 to m7 as the number of tracks formed are arranged at predetermined intervals.

[0006] Each gap G of the magnetized elements m1 to m7,
G are arranged at a predetermined interval from each other in a direction orthogonal to the direction in which the card C is conveyed.
When the card C is conveyed over .about.m7, the magnetizing elements m1
Tracks are formed facing .about.m7.

In order to display predetermined contents in the display window A with the above-described magnetic head H ', first, the contents displayed so far are erased by the degaussing head H "using an electromagnet or a permanent magnet. This degaussing head H "is arranged so as to cover the entire width of the display window C0 in the width direction, that is, to cover all the tracks, and the entire display window C0 is degaussed and displayed. All contents are erased.

To perform a new display in the display window C0 that has undergone the erasing process, for example, to display the number "5" as shown in the figure, a card C is transported by a transport mechanism (not shown). Of the card C and the respective magnetized elements m1 to m
7 is controlled by controlling the timing of applying a current to the coils 1, 1... This control is performed by a controller (not shown) mainly composed of a microcomputer which controls a processor (for example, a card reader / writer) in which the magnetic head H 'is incorporated.

After the display window C0 has been magnetized by the magnetic head H, the magnetic powder (not shown) on the display window C0 adheres to the magnetized portion, and the display contents become visible.

[0010]

However, the above-mentioned conventional magnetic head H 'uses a degaussing magnetic head H "provided separately from the magnetic head H' to display the previous display contents when performing a new display. Since demagnetization must be performed, the structure is complicated and the cost is increased.

[0011] If a new display is performed without erasing the previous display contents, the previous display contents remain and the display contents become unclear. When the magnetic head H 'is merely used as the demagnetizing magnetic head, the magnetic elements m1
Since there is an interval between .mu.m and .mu.7, character erasure cannot be performed completely, and in the conventional magnetic head H ', a magnetic head H' and another degaussing head H "are indispensable components.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks, and an object of the present invention is to enable a magnetic head to be used also as a degaussing head, thereby simplifying the structure and manufacturing at low cost. It is an object of the present invention to provide a magnetic head capable of performing the following.

[0013]

In order to achieve the above object, a magnetic head according to the present invention is formed by arranging a plurality of magnetizing elements at a predetermined interval from each other in a direction perpendicular to a card conveying direction. In the magnetic head, the magnetized elements are arranged in a staggered manner, and the magnetized elements arranged on the right side of the staggered form cover the gap between the magnetized elements arranged on the left side thereof, and the staggered left side is formed. Are characterized in that they are arranged so as to cover the gap between the magnetizing elements arranged on the right side thereof.

[0014]

In the above arrangement, the magnetic elements arranged in a zigzag form act to cover the entire display surface.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1A is a plan view of a magnetic head H according to one embodiment, and FIG. FIG.
It should be noted that the same components as those of the above-described conventional configuration will be described using the same reference numerals.

The magnetic head H has an annular head type magnetizing element M1 to M7, M ', so that a plurality of tracks (seven tracks in the illustrated example) are formed in the display window C0 of the card C.
M "is provided. In the drawing, G represents a gap of the annular head.

Of the magnetizing elements M1 to M7, M ', M ", the magnetizing elements M', M2, M4, M6, M" are spaced apart from each other by a predetermined distance on the right side in a direction orthogonal to the card C transport direction. And the other magnetizing elements M1, M3, M5
, M7 are arranged at a predetermined interval from each other on the left side in a direction orthogonal to the conveying direction of the card C.
The right and right magnetized elements are arranged in a staggered manner with a predetermined distance therebetween.

The magnetic elements M ', M2, M4, M6, M "arranged on the right side of the zigzag form cover the gaps between the magnetic elements M1, M3, M5, M7 arranged on the left side, And the magnetizing elements M1 arranged on the left side of the staggered shape,
M3, M5 and M7 are arranged so as to cover the gap between the magnetizing elements M ', M2, M4, M6 and M "arranged on the right side thereof (see d in FIG. 1A). Are arranged so that the width direction of the display window C0 can be covered by the magnetizing elements M1 to M7, M ', M ".

Using the magnetic head H having the above structure, a display window C is formed.
In order to display the new contents in 0, first, all the magnetized elements M1
The card C is transported by a transport mechanism (not shown) while a current for degaussing is applied to the coils 1, 1,... Of M7, M ', M ". As a result, all the display contents displayed on the display window C0 are erased. Is done.

Next, in order to display new contents in the display window C0 ("5" in the illustrated example), the card C is transported and the respective magnetizing elements M1 to M1 are controlled by a controller (not shown) similar to the above-mentioned conventional one.
M7 (in this case, the magnetizing elements M 'and M "are not driven)
This is performed by controlling the timing of applying the current for writing. In this case, a time difference is provided between the right and left magnetizing elements M2, M4, M6 and the right and left magnetizing elements M1, M3, M5, M7 in order to adjust the distance in the card C transport direction. Applied.

After the display window C0 is magnetized by the magnetic head H, the magnetic powder (not shown) on the display window C0 adheres to the magnetized portion, and the display contents are viewed.

In the above embodiment, the character eraser is displayed when the card C is conveyed in one direction, and the display is performed when the card C is conveyed in the other direction. However, since the card inserted into the card processor is normally inserted into the card processor and reciprocated and returned again from the insertion port, time loss does not matter.

As described above, in the magnetic head H according to this embodiment, the magnetizing elements M1 to M7, M ', M "can be arranged in a staggered manner, and the conventional degaussing head can be omitted.
The structure is simple and can be manufactured at low cost.

[0024]

In the magnetic head according to the present invention, the magnetizing elements are arranged in a staggered manner, and the magnetizing elements arranged on the right side of the staggered cover the gap between the magnetizing elements arranged on the left side thereof, and Since the magnetized elements arranged on the left side of the zigzag shape are arranged so as to cover the gap between the magnetized elements arranged on the right side, the conventional degaussing head can be omitted, so that the structure is simplified. It can be manufactured at low cost.

[Brief description of the drawings]

FIG. 1A is a plan view of a magnetic head according to an embodiment of the present invention, and FIG. 1B is a view taken along line AA of FIG.

FIG. 2A is a plan view of a conventional magnetic head,
(B) is an BB line arrow view of (a).

[Explanation of symbols]

 1 Coil M1 to M7, M ', M "Magnetizing element C Visual card (card) H Magnetic head for visual card (magnetic head)

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-56-852 (JP, A) JP-A-59-138020 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G06K 7/08 G06K 7/01 G11B 5/29

Claims (1)

(57) [Claims] 1. A visual card magnetic head formed by arranging a plurality of magnetizing elements at predetermined intervals from each other in a direction perpendicular to the transport direction of a visual card, wherein the magnetizing elements are arranged in a staggered manner. At the same time, the magnetic elements arranged on the right side of the zigzag cover the gap between the magnetic elements arranged on the left side, and the magnetic elements arranged on the left side of the zigzag form between the magnetic elements arranged on the right side. A magnetic card for a visual card, wherein the magnetic head is arranged so as to cover a gap of the visual card.