JPH08255321A - Fixing structure for magnetic head - Google Patents

Abstract

PURPOSE: To eliminate position adjustment and to easily and remarkably shorten an attaching work time. CONSTITUTION: A bracket 16 made of synthetic resin is provided on a transfer unit 15 arranged with a touch roller, etc., contacting with a magnetic head 53 and transferring a magnetic card. A head attaching hole 28 is dug on the bracket 16. Then, dowels 30 holding both side surfaces 53a of the magnetic head 53 therebetween are projected on both side surfaces of the head attaching hole 28. Further, an abutment surface 31a on which the rear end surface 53b of the magnetic head 53 is abutted and an attaching hole 32 are provided on the rear end surface 31. Further, a placing piece 33 placing the bottom surface 53c of the magnetic head 53 is formed integrally with the end edge of the head attaching hole 28.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic head fixing structure mounted on a magnetic card reader or the like.

[0002]

2. Description of the Related Art Generally, in this type of magnetic head fixing structure, in order to accurately read magnetic data written in a magnetic card, the magnetic head must be conveyed in a direction perpendicular to the direction of conveyance. It is necessary to adjust and fix the magnetic head with high accuracy with respect to the thickness direction of the magnetic card and the inclination angle of magnetic data in the magnetic card (hereinafter referred to as azimuth angle).

For example, Japanese Patent Application Laid-Open No. 4-274587 discloses an adjusting method for a magnetic head fixing structure of this type. The one disclosed herein includes a head bracket to which a magnetic head is attached by an adjusting means composed of a plurality of setscrews, and another bracket that pivotally supports a touch roller and the like. It is attached to another bracket while adjusting the distance between the head and the touch roller.

[0004]

However, the above-described conventional magnetic head fixing structure requires adjustment with respect to the head bracket when the magnetic head is attached to the head bracket, and the head bracket is attached to the touch roller as an axis. Since the adjustment is required when the bracket is attached to another supporting bracket, the work is complicated and requires skill, and a lot of working time is required.

Therefore, the present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to eliminate the need for position adjustment, thereby facilitating easy and short installation work time. To provide a fixed structure.

[0006]

In order to achieve this object, a magnetic head fixing structure according to the present invention is a composite structure in which a touch roller that is in contact with the magnetic head is pivotally supported and a magnetic card transport path is formed. Equipped with a resin bracket,
A fitting hole for fitting the magnetic head is provided on the carrying path surface of the bracket, and a mounting surface for mounting either one of the front and rear surfaces of the magnetic head in the card carrying direction is formed on one side surface of the fitting hole, and the fitting is performed. A pair of opposing projections for sandwiching both side surfaces of the magnetic head in the card transport direction are integrally provided on the other opposite side surfaces of the hole, and a regulation member for abutting the bottom surface portion of the magnetic head is provided at the end edge of the fitting hole. It is formed integrally.

[0007]

According to the present invention, the mounting surface provided on one side of the fitting hole positions the card in the carrying direction and adjusts the azimuth angle, and the projections provided on both sides of the fitting hole prevent the card from moving in the card carrying direction. Positioning is performed in a direction orthogonal to each other, and the restricting member positions the card in the thickness direction.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. 1 is a plan view of a magnetic card reader adopting a magnetic head fixing structure according to the present invention, FIG. 2 is a plan view of the same transport unit, FIG. 3 is a sectional view taken along line III-III in FIG.
4 is a cross-sectional view taken along the line IV-IV in FIG. 2, FIG. 5 is an exploded perspective view of the transport unit as seen from the back, and FIG. 6 is a rear view of the transport unit. In these drawings, a magnetic card reader generally designated by reference numeral 1 is provided with a long rectangular base 2 made of synthetic resin and extending in the left-right direction in FIG. The base 2 is formed by a bottom surface portion 3 serving as a card transport path and side surface portions 4 and 4 having a width substantially equal to the width of the magnetic cards P standing on both sides of the bottom surface portion 3, and substantially at the center of the bottom surface portion 3. A through hole 6 having a substantially trapezoidal shape is formed in the.

On both side surface portions 4 corresponding to the through holes 6, flange portions 7 and 8 located farther from the bottom surface portion 3 than the bottom surface portion 3 in the drawing.
Are integrally formed. The flange portions 7 and 8 have
Two mounting holes 9, 9 and 11, 11 are provided respectively, and positioning dowels 10, 12 are provided so as to project. Reference numeral 15 denotes a transport unit as a whole, and as shown in FIG. 2, it has a bracket 16 entirely made of synthetic resin as a base. Bracket 1
Reference numeral 6 designates the same spacing as the spacing between the bottom surface portion 17 which forms a part of the card transport path having substantially the same outer shape as the through hole 6 and the side plates 4 and 4 which are erected on both sides of the bottom surface portion 17. It is formed by side plates 18 and 19 which are erected separately.

A motor mounting portion 20 is integrally formed on the side plate 18 so as to be orthogonal to the side plate 18, and a flange portion 21 is integrally formed. Flange 21
Is the bottom surface portion 1 obtained by subtracting the thickness of the flange portion 21 from the position where the flange portion 8 is located on the rear side of the paper surface with respect to the bottom surface portion 3.
It is located on the back side of the sheet with respect to 7. The flange portion 21 has mounting holes 22, 22 corresponding to the mounting holes 11, 11.
And a hole 23 corresponding to the positioning dowel 12 is formed. A flange portion 24 is formed integrally with the side plate 19. The flange portion 24 is located on the rear side of the paper surface with respect to the bottom surface portion 17 obtained by subtracting the thickness of the flange portion 24 from the amount of the flange portion 7 located on the rear surface side of the bottom surface portion 3. The flange 24 is provided with mounting holes 25, 25 corresponding to the mounting holes 9, 9 and a hole 26 corresponding to the positioning dowel 10.
Has been drilled.

A rectangular head mounting hole 28 whose one side is the inner side surface of the side surface portion 18 is formed in the bottom surface portion 17, and the side surface portion 19 is in the AB direction, that is, the magnetic card P is conveyed. A rectangular window 29 is formed along the direction. Dowels 30 are provided on both sides of the head mounting hole 28 so as to face each other, and an inner surface of the rear surface portion 31 forms an abutting surface 31a against which a rear end surface 53a of a magnetic head 53, which will be described later, abuts. As shown in FIG. 5, the rear surface portion 31 is provided with a vertically long attachment hole 32. Abutting surface 31
a is formed so as to be orthogonal to the A-B direction which is the transport direction of the magnetic card P. On the back surface side of the head mounting hole 28, a mounting piece 33 as an L-shaped restricting member integrally formed so as to be bridged between the end edge of the head mounting hole 28 and the back surface of the flange portion 21. Is provided, as shown in FIG.
As shown in FIG. 3, a mounting portion 33a for mounting the bottom surface portion 53c of the magnetic head 53 is formed on the upper end surface of the mounting piece 33.

As shown in FIG. 5, a concave fitting portion 34 is formed around the rear surface of the window 29, and the bottom surface of the concave fitting portion 34 is staggered in plan view before and after one side of the window 29. The formed three projecting pieces 35a, 35b, 35c are erected, and the portion surrounded by these three projecting pieces 35a, 35b, 35c bears one end of the shaft of the driven roller 56, which will be described later, in the rear surface direction. That is, the bearing portion 35 having an opening in the C direction is formed. Reference numeral 36 is a protruding piece that is erected on the protruding piece 35a with a slight gap. Two projecting pieces 37a and 37b are provided upright on the bottom surface of the recessed fitting section 34 on the other side of the window 29, and the recessed fitting section 35 corresponding to these projecting pieces 37a and 37b is provided. The standing wall is provided with a recessed portion 38, and a portion surrounded by the projecting pieces 37a, 37b and the recessed portion 38 bears the other end of the shaft of the driven roller 56 described later.
A bearing portion 37 having an opening in the direction is formed. The upper and lower walls of the recessed fitting portion 34 have U-shaped grooves 3 in a side view on the upper end surface.
A pair of spring receiving portions 39 on which 9a are formed are integrally formed. A screw hole 40 is provided at the upper edge of the recessed fitting portion 34 between the spring receiving portions 39.

Reference numeral 41 is a motor in which a worm 42 is mounted on its drive shaft, and is attached to the motor mounting portion 20 with a screw 43. Reference numeral 44 denotes a worm wheel that meshes with the worm 42. The collar portion 44a is integrally formed with the worm wheel 42. Shaft 45
The E-ring 46 fitted on one end side and the screw 47 screwed on the other end side so as to engage with the side surface of the worm wheel 44 prevent the axial removal from the side plates 18 and 19. Has been done. Reference numeral 48 denotes a touch roller which is made of flexible plastic and which is positioned on the shaft 45 in the X direction and is axially attached to the shaft 45. Reference numeral 49 is a drive roller mounted on the shaft 45 so as to face the window 29. A driven roller 50 is rotatably supported by a shaft 51, which is cantilevered by the side plate 19, and faces a window 29.

Reference numeral 53 is a magnetic head having a screw hole 54 in the rear end surface 53b. Reference numeral 56 is a pair of pinch rollers rotatably supported by a shaft 57, and reference numeral 58 is a driven belt stretched between the pinch rollers 56. Reference numeral 60 denotes a presser spring, which includes a curved portion 60a formed in the central portion, a shoulder portion 60b that is connected to the curved portion 60a and extends to the left and right, and a shoulder portion 60b that is connected to the shoulder portion 60b and extends downward from the shoulder portion 60b. It is formed of a pair of arms 60c that are bent and extend further rearward. Reference numeral 61 is a stop plate having a mounting hole 61a.

Next, a method of assembling the magnetic card reader thus constructed will be described. As shown in FIG. 5, the magnetic head 53 is inserted into the head mounting hole 28 from the back surface side of the transport unit 15. As shown in FIG. 2, both sides 53a of the inserted magnetic head 53 are clamped and fixed to the dowel 30,
The head mounting hole 28 is positioned in the X direction. Further, as shown in FIG. 4, the bottom surface 53 c of the magnetic head 53 is mounted on the mounting portion 33 a of the mounting piece 33, and the head mounting hole 28 is positioned in the Z direction by the rear end surface 53.
b is abutted against the abutting surface 31a of the rear surface portion 31, the head mounting hole 28 is positioned in the Y direction, and the magnetic head 53 is attached to the rear surface portion 31 with the screw 55.

The magnetic head 53 thus mounted is positioned in the X, Y and Z directions with respect to the head mounting hole 28. The touch roller 48 that is in contact with the magnetic head 53 is axially positioned and axially mounted on the shaft 45, and the shaft 45 is positioned between the side plates 19 in the Y and Z directions.
8 in the X, Y, and Z directions. Since the side plate 18 and the head mounting hole 28 are formed in the same bracket 16, the touch roller 48 and the magnetic head 53 are connected to the X, Y, and
Positioning in the Z direction is performed. Therefore, as compared with the conventional case in which two or more members are interposed between the magnetic head and the touch roller, an assembly error between the members does not occur, and adjustment after assembly is unnecessary.

In this embodiment, the abutting surface 3 of the rear surface portion 31 is used.
The case where 1a is formed so as to be orthogonal to the A-B direction which is the card transport direction and the azimuth angle θ of the magnetic head 53 is 0 ° has been described. However, the present invention is not limited to this, and when the azimuth angle θ is required. Needless to say, a predetermined azimuth angle θ can be obtained for the magnetic head 53 by inclining the abutting surface 31a in accordance with the azimuth angle θ.

Next, the method of assembling the driven belt 58 will be described with reference to FIG.
It will be described based on. Shaft 57 of pinch roller 56
Both ends of the bearing are inserted into the bearings 35 and 37 from the openings of the bearings 35 and 37 in the direction opposite to the arrow C direction. After a while
The shoulder portion 60b of the presser spring 60 is connected to the groove 3 of the spring receiving portion 39.
9a, the arm portion 60c is inserted between the projecting pieces 35a and 36 and between the projecting piece 37a and the standing wall of the recessed fitting portion 34. The inserted arm portion 60c contacts both ends of the shaft 57. Then, the stopper plate 61 is applied to the arm portion 60a, and the screw 62 is inserted into the mounting hole 61a and screwed into the screw hole 40, so that the pressing spring 60 is prevented from coming off.
Both ends of the shaft 57 are supported by the arm portion 60c,
The removal of 37 from the opening is regulated.

In this way, the driven belt 58 mounted so as to face the window 29 from the rear surface side of the bracket 16.
And the drive belt 52 attached so as to face the window 29 from the surface side of the bracket 16 by the bracket 16 which is one member without the shafts 45, 51 and the shaft 56 being interposed by other members. Since they are supported, the distance d between the shafts of both belts shown in FIG. 3 is always kept constant, and it is not necessary to adjust the distance d, and the contact pressure between both belts is kept constant, so that it is stable. You can get the card running. Further, when the pinch roller 57 of the driven belt 58 is assembled to the bearing portions 35 and 37, the pinch roller 57 is inserted from the opening portions of the bearing portions 35 and 37. Will be easier.

The transport unit 1 assembled in this way
The holes 26 and 23 of 5 are used for positioning dowels 10 and 1 of the base 2.
2 and the transport unit 15 is fitted into the through hole 6 of the base 2 as shown in FIG. 1 so that the flange portions 7 and 8 of the base 2 are fitted to the flange portion 2 of the transport unit 15.
Stack 4 and 21. At this time, the flange portion 21 is positioned on the back side of the paper surface with respect to the bottom surface portion 17 by subtracting the thickness of the flange portion 21 from the amount of the flange portion 8 located on the back surface side of the bottom surface portion 3. Further, the flange portion 24 is located on the back side of the paper surface with respect to the bottom surface portion 17 by subtracting the thickness of the flange portion 24 from the amount of the flange portion 7 located on the back surface side of the bottom surface portion 3. Therefore, the transport unit 15
The surface of the bottom portion 17 of the base 2 is at the same surface position as the surface of the bottom portion 3 of the base 2. Screws (not shown) are inserted into the holes 25 of the flange portion 24 to the holes 9 of the flange portion 7 and the holes 22 of the flange portion 21 to the holes 11 of the flange portion 8 to screw the transport unit 15 into the base 2 Attach to.

Next, the operation of the magnetic card reader thus assembled will be described. As shown in FIG. 1, when the magnetic card P is inserted from the card insertion slot 5 and the detection means (not shown) detects that the magnetic card P has been inserted, the motor 41 starts forward rotation. The rotation of the motor 41 causes the shaft 45 to rotate via the worm 42 and the worm wheel 44, causing the drive belt 52 to travel and the driven belt 58 to accompany. When the tip of the magnetic card P comes into contact with the drive belt 51 of the transport unit 15, the magnetic card P
Is sandwiched between the drive belt 51 and the driven belt 58 and conveyed in the A direction, and the magnetic head 53 reads and writes magnetic data. When reading and writing are completed, the motor 41 is rotated in the reverse direction, and the magnetic card P is conveyed in the B direction and ejected from the card insertion slot 5.

[0022]

As described above, according to the present invention, there is provided a bracket made of synthetic resin on which a touch roller that is in contact with a magnetic head is pivotally supported and a carrying path for a magnetic card is formed. A fitting hole for fitting the magnetic head is provided on one side, and a mounting surface for attaching either one of the front and rear surfaces of the magnetic head in the card transport direction is formed on one side surface of the fitting hole, and another facing side of the fitting hole is formed. A pair of opposing projections that sandwich both sides of the magnetic head in the card transport direction are integrally provided on both side surfaces, and a regulating member that abuts the bottom surface of the magnetic head is integrally formed at the end edge of the fitting hole. Allows the mounting surface on one side of the fitting hole to position the card in the card transport direction and adjust the azimuth angle, and the protrusions on both sides of the fitting hole to position the card in the direction orthogonal to the card transport direction. Together is carried out, since the ribs by the positioning in the thickness direction of the card is performed, the magnetic head is made positioned by simply fixed to the mounting surface fitted into the fitting hole, and therefore the adjustment for positioning becomes unnecessary,
The magnetic head can be easily attached and the working time can be shortened.

[Brief description of drawings]

FIG. 1 is a plan view of a magnetic card reader that employs a magnetic head fixing structure according to the present invention.

FIG. 2 is a plan view of a carrying unit in a magnetic card reader that employs a magnetic head fixing structure according to the present invention.

3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is an exploded perspective view of the transport unit in the magnetic card reader that employs the magnetic head fixing structure according to the present invention, as viewed from the rear side.

FIG. 6 is a rear view of a transport unit in a magnetic card reader that employs a magnetic head fixing structure according to the present invention.

[Explanation of symbols]

1 ... Magnetic card reader, 2 ... Base, 3 ... Bottom part, 6 ...
Through hole, 15 ... Transport unit, 16 ... Bracket, 17
... bottom part, 28 ... head mounting hole, 30 ... dowel, 31 ... rear surface part, 31a ... abutting surface, 33 ... mounting piece, 33a ... mounting part, 53 ... magnetic head, 53a ... side surface, 53b ... rear end surface, 53c ... bottom surface.

Claims (1)

[Claims] 1. A bracket made of synthetic resin in which a touch roller that is in contact with a magnetic head is supported and a carrying path for a magnetic card is formed, and a fitting hole for fitting the magnetic head is formed on the carrying path surface of the bracket. The mounting surface is provided on one side of the fitting hole to which either one of the front and rear surfaces of the magnetic head in the card carrying direction is attached, and the opposite side surfaces of the fitting hole are provided with the magnetic head in the card carrying direction. A fixing structure for a magnetic head, characterized in that a pair of opposed projections sandwiching both side surfaces are integrally provided, and a restricting member that abuts a bottom surface portion of the magnetic head is integrally formed at an end edge of the fitting hole.