JP2002245409A - Head press-contacting mechanism for magnetic card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a mechanism which releases the influence of irregularity that originally exists in mass-produced parts and is also hardly affected by displacement to some extent of bend of magnetic card itself. SOLUTION: A press roller rotates while press-contacting the magnetic card against a fixed magnetic head surface. The press roller is attached to a support shaft with bearing fixed to a central part in its axial direction, and a swing effect is brought about from the axial gap of the bearing even though irregularity that the parts originally have occurs or even though the magnetic car is deformed. The press roller, the magnetic card and the magnetic head surface can be uniformly in close contact with one another.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an automatic ticketing machine and an automatic payment machine in an unmanned parking lot, a magnetic card for performing various procedures and a payment using a magnetic card in a railway, a game arcade, and the like.
The present invention is used for a writing machine, and particularly relates to a magnetic card head pressing mechanism.

[0002]

2. Description of the Related Art FIGS. 5, 6 and 7 show a conventional magnetic card head press-contact mechanism for reading or writing data on a magnetic card. FIG. 5 is a top view, and FIG. FIG. 7 is a sectional view taken along line AA of FIG. 5. 5, 6, and 7, 500 is a magnetic card, 5011 and 5012 are chassis frames that hold the entire mechanism, and 502 is the chassis frame 501 at both ends.
1, a magnetic head for reading and writing magnetic data of the magnetic card 500;
Reference numerals 301 and 50302 denote press rollers 503 that rotate while pressing the data surface of the magnetic card 500 against the magnetic head 502 to make contact therewith, that is, while pressing.
1, 5032 is the press roller 50301, 503
02, the tire located at the outermost layer, 5041, 5
No. 042 is the press roller 50301, 50, respectively.
302 support shafts, 5051a, 5051b, 5052
a, 5052b are press rollers 50301, 5030
The ball bearings 5061 and 5062 are fixed to the inside of the tires 5031 and 5032 and are inserted into both ends of the support shafts 5041 and 5042. The ball bearings 5061 and 5062 are formed to have U-shaped cross sections. Arm supporting the support shafts 5041 and 5042 over
Reference numeral 7 denotes a support shaft mounted on both side surfaces of the chassis frames 5011 and 5012 to support the arms 5061 and 5062, respectively.
061 and 5062, which are wound around the support shaft 507, one end of which contacts the U-shaped intermediate flat portions 5061a and 5062a of the arms 5061 and 5062 to give a repulsive force. Roller 50301,
5091, a spring for generating a pressing force of 50302
The springs 5081, 512 are attached to both sides of the chassis frame 5011, 5012 substantially at the center.
082 and the other ends of the springs 5081 and 508
A first spring support 5092 for restricting the movement of the second 2 is a second spring support mounted on both side surfaces of upper portions (on the drawing) of the chassis frames 5011 and 5012,
5093 is a third spring support 511a, 511b attached to both sides of the lower part (on the drawing) of the chassis frames 5011, 5012, and the magnetic card 50
Drive rollers for conveying 0, 512a, 512b
Are drive shafts 5131a and 5132a for driving the drive rollers 511a and 511b, respectively. Bearings 5131b and 5131 are provided on both upper side surfaces of the chassis frames 5011 and 5012 to support the drive shaft 512a.
A bearing 132b is provided on both lower side surfaces of the chassis frames 5011 and 5012 and supports the drive shaft 512b. A bearing 514 receives the power to drive one drive shaft 512b and simultaneously transmit the first drive shaft 512b to the other drive shaft 512a. The timing pulley 515 receives the power from the first timing pulley 514 and receives the power from the other drive shaft 51.
A second timing pulley 516 for driving 2a is a first timing belt for transmitting the power received by the first timing pulley 514 to the second timing pulley 515, and 517 is a first timing belt for transmitting the power from the power source to the first timing. A second timing belt transmitting to the pulley 514, 51
8a and 518b correspond to the driving rollers 511, respectively.
a, 511b for pressing the magnetic card 500 against each other, and 519a, 519b are shafts for rotating the pressing rollers 518a, 518b.
20a and 520b are formed so as to have a U-shaped section, and the shafts 519a and 519b are formed over both sides of each of them.
The arms 521a and 521b support the arms 520a and 520b, respectively.
52, a support shaft rotatably supporting both sides of the 012
Reference numerals 2a and 522b are located between both sides of the arms 520a and 520b, and are wound around the support shafts 521a and 521b, respectively, and one end is formed into a U-shaped intermediate flat portion 520a1 and 520b1 of the arms 520a and 520b. , The other ends of which are second and third spring supports 5092, 509, respectively.
3, a spring for generating a pressing force of the pressing rollers 518a, 518b by applying a repulsive force by restricting the movement, and 523, 524 are guides for correctly running the magnetic card 500, 525 is a driving source, and a second timing belt 517 is a motor connected to the motor.

[0003]

FIG. 7, which is a cross-sectional view taken along the line AA of FIG. 5, shows the causes of the problems that occur in the conventional device. Usually, the components that make up this type of mechanism include:
Processing variations always exist, and depending on the combination, the press rollers 50301, 5030
The two support shafts 5041 and 5042 may not be arranged on a straight line and may be inclined as shown in the figure. Tire 503
1, 5032 and the support shafts 5041, 5042 are respectively a pair of bearings 5051a, 5051b, 5050.
52a and 5052b are press rollers 5030, respectively.
1, 50302 are attached and connected to both ends in the axial direction. The inclination of the support shafts 5041 and 5042 is transmitted as it is to the outer circumferences of the press rollers 50301 and 50302, ie, the tires 5031 and 5032, and the press roller 503 is moved relative to the data reading / writing surface of the magnetic head 502.
01 and 50302 (tires 5031 and 5032) do not adhere evenly over the entire width, and as shown in the drawing, a lift occurs in one of them. In FIG. 7, the right press roller 50301 is shown as rising on the right side of the drawing, and the left press roller 50302 is shown as rising on the left side of the drawing. When the magnetic card 500 runs between the press rollers 50301 and 50302 and the magnetic head 502 in such a state, nonuniform adhesion to the magnetic card 500 occurs, and reading and writing of magnetic data may fail. In addition, even when the magnetic card 500 itself is deformed due to handling, there is a disadvantage that the function of promoting the above-mentioned non-uniform adhesion is added and the same problem is caused. All of these phenomena were so small that it was difficult to detect them with the eyes, making it difficult to find and take countermeasures on the production line.

The present invention has been made in view of the above problems, and is free from the effects of variations inherently present in mass-produced parts, and depending on the degree of displacement such as bending of the magnetic card itself. The purpose is to obtain a device which is also less affected.

[0005]

According to the present invention, there is provided a magnetic card head pressing mechanism for rotating a magnetic card while pressing the magnetic card against a fixed magnetic head surface to move the magnetic card. Are mounted on the support shaft via a bearing fixed at the axial center thereof and obtaining a swinging effect provided by an axial gap of the bearing.

[0006]

The head press-contact mechanism for a magnetic card according to the present invention comprises:
It works as follows. The press roller rotates while pressing the magnetic card against the fixed magnetic head surface. The press roller is attached to the support shaft by fixing the bearing at the center part in the axial direction, and even if the inherent variation of the parts occurs or the magnetic card is deformed, the swinging effect from the axial gap of the bearing Is provided, and the press roller, the magnetic card, and the magnetic head surface can be uniformly adhered.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 1, 2 and 3 are views for explaining one embodiment, FIG. 1 is a sectional view taken along line AA of FIG. 2, FIG.
FIG. 3 is a sectional view taken along line BB of FIG. 1, 2 and 3
, 100 is a magnetic card, 1011 and 1012 are chassis frames that hold the entire mechanism, 102 is a magnetic head that has both ends fixed to the chassis frames 1011 and 1012, and reads and writes magnetic data on the magnetic card 100. Reference numerals 10301 and 10302 denote press rollers which rotate while pressing the data surface of the magnetic card 100 against the magnetic head 102, that is, while pressing, and reference numerals 1031 and 1032 constitute the press rollers 10301 and 10302, respectively, which are located at the outermost layer. The tires 1041 and 1042 are supporting shafts for the press rollers 10301 and 10302, respectively.
Reference numeral 1052 denotes press rollers 10301 and 10302, which are fixed to the inner central portions of the tires 1031 and 1032, and are ball bearings to be inserted into the central portions of the support shafts 1041 and 1042, and 1061 and 1062 have a U-shaped section. Arms formed to support the support shafts 1041 and 1042 over both sides of each arm;
Reference numeral 7 denotes a support shaft attached to both side surfaces of the chassis frames 1011 and 1012 to support the arms 1061 and 1062, respectively.
1, 1062, located between both sides of the support shaft 10
7 and one end thereof comes into contact with the U-shaped intermediate plane portions 1061a and 1062a of the arms 1061 and 1062 to apply repulsive force to the press rollers 10301 and 10301.
A spring 1091 for generating a pressure contact force of 302 is attached to both side surfaces of the chassis frames 1011 and 1012, and contacts the other ends of the springs 1081 and 1082 to restrict the movement of the springs 1081 and 1082.
Of spring support, 1092 is chassis frame 101
A second spring support post attached to both sides of an upper portion (on the drawing) of the upper frame 1011; a third spring support attached to both sides of a lower portion (on the drawing) of the chassis frame 1011; 111a,
111b is a drive roller for transporting the magnetic card 100, 112a and 112b are drive shafts for driving the drive rollers 111a and 111b, respectively.
31a and 1132a are chassis frames 1011 and 101
Bearings 1113b and 1132b provided on both upper side surfaces of the drive shaft 112a and supporting the drive shaft 112b are provided on both lower side surfaces of the chassis frames 1011 and 1012. A first timing pulley 115 for driving the drive shaft 112b and simultaneously transmitting the drive shaft 112b to the other drive shaft 112a is a second timing for receiving the power from the first timing pulley 114 and driving the other drive shaft 112a. The pulley 116 receives the power received by the first timing pulley 114 and the second timing pulley 11
5, a first timing belt 117 for transmitting power from a power source to the first timing pulley 114, and a second timing belt 118a and 118b for applying the magnetic force to each of the drive rollers 111a and 111b. The pressing rollers 119a and 119b for pressing the card 100 are the pressing rollers 118a,
Shafts for rotating 118b, 120a and 120b are formed to have a U-shaped section, and arms supporting the shafts 119a and 119b over both sides thereof, and 121a and 121b are the arms 120a and 120b.
b are rotatably supported on both sides of the chassis frames 1011 and 1012, 122a and 122b are located between both sides of the arms 120a and 120b, and are wound around the support shafts 121a and 121b, respectively. One end is in contact with the U-shaped intermediate flat portions 120a1 and 120b1 of the arms 120a and 120b, and the other end is in contact with the second and third spring columns 1092 and 1093, thereby restricting the movement and applying a repulsive force. Rollers 118a,
Spring for generating a pressing force of 118b, 123, 1
24 is a guide for correctly running the magnetic card 100, 1
Reference numeral 25 denotes a motor which serves as a driving source and is connected to the second timing belt 117.

FIG. 4 shows a cross-section of a ball bearing widely used in machinery and also used in embodiments of the present invention. In FIG. 4, 41 is an outer ring, 42 is an inner ring, and 43 is a ball. There is always a radial gap δ between the outer ring 41, the inner ring 42 and the ball 43. If this δ exists, a gap always occurs in the axial direction (axial direction). Here, a shaft (for example, FIG. 1, FIG.
When a rotational force is applied to the shaft through the support shafts 1041 and 1042), only the inner ring 42 can rotate while tilting by an angle of θ1 or θ2.

For ball bearings, the clearance δ depends on the grade.
From the 3 μm class to the 28 μm class, and when the gap δ is large, θ1 or θ2 can be obtained at 1 to 3 °. By utilizing this swinging action of the ball bearing, it has become possible to eliminate the drawbacks of the conventional device.

[0010] As shown in FIG.
The support shafts 1041 and 1042 of 0301 and 10302 are not arranged in a straight line, and are inclined as shown in the figure. Press rollers 10301 and 10302 and support shaft 104
1 and 1042 are each one bearing 1051
And 1052 are press rollers 10301 and 1031 respectively.
It is connected to the central portion 302 in the axial direction by being mounted and fixed by means such as press-fitting or bonding. Support shaft 104
Even if 1,1042 is inclined due to the accumulation of variations, the inner ring of the bearing 1051 or 1052 can continue to rotate with the shaft running relative to the outer ring.

The forces of the springs 1081 and 1082 for generating a pressure contact force with the magnetic head 102 are
1062, and from the center of the support shafts 1041 and 1042 to the ball bearings 1051 and 1052,
Even if the support shaft 107 is inclined, the arms 1061 and 106
Ball bearings 1051 and 1051
Roller 10301, 103 through 2 balls
02 is evenly distributed and acts as a uniform pressing force on the surface of the magnetic head 102. Of course, it is not possible to absorb even the variation in the inclination of the mechanical parts exceeding the range of the allowable deflection angle of the inner ring of the ball bearing (usually 1 to 3 °).
A practically sufficient correction effect can be obtained for variations inherent in mass-produced parts.

Also, when the magnetic card 100 itself is deformed such as being bent or slightly bent during handling, the magnetic card 100 is corrected by the uniform pressing action of the press rollers 10301 and 10302, and the degree of adhesion to the magnetic head 102 is improved. This provides a significant improvement over conventional methods.

[0013]

As described above, according to the present invention, in the mass production process of the entire magnetic card reading and writing apparatus, the conventional apparatus has a considerable number, for example, 3
2% was occupied by reading and writing errors, which was the cause of the decrease in production efficiency. By applying the present invention,
It is expected that there will be no or very few such defects.

[0014] Further, it is possible to provide a magnetic card which has improved reading function as compared with the conventional apparatus without lowering the reading function even when the magnetic card itself is deformed during handling of a customer during market operation. It has the effect of reducing the number of complaints.

[Brief description of the drawings]

FIG. 1 is a sectional view illustrating an embodiment of the present invention.

FIG. 2 is a top view illustrating an embodiment of the present invention.

FIG. 3 is a sectional view illustrating an embodiment of the present invention.

FIG. 4 is a sectional view of a conventional ball bearing.

FIG. 5 is a top view illustrating a conventional magnetic card head pressure contact mechanism.

FIG. 6 is a cross-sectional view illustrating a conventional magnetic card head pressure contact mechanism.

FIG. 7 is a cross-sectional view illustrating a conventional magnetic card head pressure contact mechanism.

[Explanation of symbols]

100 magnetic card, 1011, 1012 chassis frame, 102 magnetic head, 10301, 10302
Press roller, 1031, 1032 ... tire, 104
1, 1042: Support shaft, 1051, 1052: Ball bearing, 1061, 1062: Arm, 107: Support shaft, 1081, 1082: Spring, 1091: First
Spring support, 1092 ... second spring support,
1093: Third spring support, 111a, 111b
... drive rollers, 112a, 112b ... drive shafts, 113
1a, 1132a... Bearings, 1311b, 1132
b: bearing, 114: first timing pulley,
115 ... second timing pulley, 116 ... first timing belt, 117 ... second timing belt, 1
18a, 118b ... pressing roller, 119a, 119b
... shaft, 120a, 120b ... arm, 121a, 121
b: support shaft, 122a, 122b: spring, 12
3, 124: guide, 125: motor.

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Osamu Fujiwara 345 Kamimachiya, Kamakura-shi, Kanagawa F-term in Aoishi Community Co., Ltd. (Reference) 2C005 HA26 HB06 HB13 JA02 JA24 KA15 LB04 LB10 LB18 LB45 5B023 EA12 5B058 CA31 5B072 CC02 CC27 DD05 JJ08

Claims (1)

[Claims] 1. A press roller for moving a magnetic card by rotating the magnetic card while pressing the magnetic card against a fixed magnetic head surface is provided through a bearing fixed at a central portion in the axial direction of the press roller and also from an axial gap of the bearing. A head pressing mechanism for a magnetic card, wherein the head pressing mechanism is attached to a support shaft so as to obtain a swinging effect.