JP2003303480A - Magnetic head switching device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To switch two magnetic heads by using the small-sized driving means of a simple structure and small current consumption. <P>SOLUTION: By arranging one swingable control plate 3 between two cam plates 1 and 2, swinging the control plate 3 from a neutral position to the side of one cam plate 2 through a driving shaft 6 by switching signals and positioning the upper end part below a cam roller 26, one cam roller 26 is blocked from following the cam surface 2a of the cam plate 2. Thus, only the other cam roller 22 follows the cam surface 1a of one cam plate 1, and when the cam roller 22 advances to the recessed part of the cam surface 1a, the magnetic head 23 on a tip side is lifted and brought into contact with a magnetic strip MA1 and a recording operation is performed. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic recording device for reading and writing data from and to a magnetic recording medium such as a magnetic card or passbook, and more particularly to a magnetic head switching device thereof.

[0002]

2. Description of the Related Art Conventionally, there has been known a magnetic recording apparatus which conveys a passbook provided with a magnetic stripe to a predetermined position and reads data recorded on the magnetic stripe by a magnetic head or writes data on the magnetic stripe. There is. FIG. 7 shows the structure of a conventional magnetic recording apparatus of this type.
In FIG. 7, a body frame 10 of the magnetic recording device 101.
2, a lead screw 103 rotatably mounted via a bearing (not shown), and a lead screw 1
Upper shaft 104 mounted in parallel above and below 03
And the lower shaft 105 and the lead screw 103
And a cam plate 106 that is vertically fixed to the rear of the. The lead screw 103 is a left screw, and a driven pulley 107 is fixed to the left end of the lead screw 103. A motor 108 is fixed to the left end of the machine body frame 102, and a drive pulley 109 is fixed to a rotary shaft 108 a of the motor 108. Then, the drive pulley 109
And the driven pulley 107 between the timing belt 110
Have been passed over.

A head carrier 111 is rotatably attached to the upper shaft 104 so as to be slidable in the axial direction and rotationally biased in a clockwise clockwise direction in the radial direction. A magnetic head is mounted on the front end of the head carrier 111. 112 is attached. Therefore, the magnetic head 112 is rotatably biased in the clockwise direction and rotatable about the upper shaft 104 as a fulcrum. Also, the lower shaft 105
A guide carrier 113 is axially slidably attached to the head carrier 111, and an upper portion of the guide carrier 113 is connected to the head carrier 111. In addition, the guide carrier 11
3, a lead nut 114 is fixed, and the lead nut 114 is screwed onto the lead screw 103. Therefore, following the rotation of the lead screw 103, the guide carrier 113, the head carrier 111, and the magnetic head 112 move in the axial direction.

On the other hand, at the rear of the head carrier 111,
The cam roller 115 is rotatably provided, and the cam roller 115 is in contact with the cam surface 106 a of the cam plate 106. In addition, on both sides of the body frame 102,
A home position sensor 116 and a rear margin sensor 117, which are photosensors, are arranged, and the shutter 118 provided on the head carrier 111 blocks these sensors to detect the position of the head carrier 111. Further, a slit plate 119 is fixed to the right end portion of the lead screw 103, and the machine body frame 102 is provided with a clock sensor 120 for counting the number of slits of the slit plate 119. The main control unit 121 having a CPU that controls the entire apparatus temporarily stores a motor control unit 122 that controls the motor 108, a recording control unit 123 that reads and writes from the magnetic head 112, a ROM that stores a processing program, and work data. A storage unit 124 having a RAM for storing the data is connected.

Next, the operation of this conventional example will be described. When the main controller 121 rotates the motor 108 via the motor controller 122 and the lead screw 103 rotates via the drive pulley 109, the timing belt 110, and the driven pulley 107, the guide carrier 113 and the head carrier 111 move to the home position. The sensor 116 starts moving leftward from the OFF position (HP position). At the same time, the slit plate 119 fixed to the lead screw 103 also rotates, and the clock sensor 120 is set to HP.
The position where the predetermined number of pulses from the position is counted is the write start position.

At the same time when the head carrier 111 starts to move, the cam roller 115 of the magnetic head 112 also rolls on the cam surface 106a of the cam plate 106, and the cam surface 106 moves.
When reaching the slope A of a, the cam roller 115 follows its descending shape, so that the magnetic head 112 on the opposite side is lifted up and comes into contact with the magnetic stripe of the passbook arranged above it, and writing is performed by a signal from the recording control unit 123. The action is taken. After that, the cam roller 115 moves the cam surface 106a.
When the sloping surface B on the opposite side is rolled, the cam roller 115 follows its rising shape, so that the magnetic head 112 on the opposite side goes down and moves away from the magnetic stripe of the passbook arranged above it, and the writing operation ends. . Head carrier 1
When the lowering operation of 11 is completed, the rear margin sensor 11
7, the main control unit 121 brakes the motor 108 via the motor control unit 122 to stop it by the signal, and then reverses to return the head carrier 111 to the original HP position.

In such a magnetic recording device, since the positions of the magnetic stripes provided in the passbook differ depending on the financial institution, conventionally, two magnetic heads are provided in accordance with the positions of the different magnetic stripes, and these magnetic heads are used. There is also a device that supports different passbooks by switching. A mechanism for switching such magnetic heads is provided on the guide carrier 113 of FIG. 7 with two head carriers 111 having different arm lengths adjacent to each other in accordance with the position of the magnetic stripe of the passbook, and each of them is provided with Each head carrier 11 is connected to a common guide carrier 113.
1 is provided with a magnetic head 112, and each head carrier 111 is attached to a different cam plate 106.
The magnetic head 112 is switched by selecting with.

FIG. 8 shows a magnetic head switching mechanism of such a conventional magnetic recording apparatus. In FIG. 8, two identical first cam plates 131 and second cam plates 132 fixed to the machine body frame have cam surfaces 131 having slopes A and B at the upper ends, respectively.
a and 132a are formed. Between the two cam plates 131 and 132 arranged in parallel, there is a first
And the second restriction plates 133 and 134 are arranged in parallel. Cylindrical shaft-shaped spacers 135 and 136 and support pins 137 and 138 are provided at the center of the spacers 135 and 136, respectively, on the inner sides of both ends of the first cam plate 131 on the front side. Each spacer 135, 136 and support pin 137, 138
At the positions of the regulation plates 133 and 134 facing each other,
Long holes 139, 140, 141, 142, 1 long in the longitudinal direction
43, 144, 145, and 146 are formed. In addition, triangular rotation links 147 and 148 are arranged between the two regulation plates 133 and 134, and one rotation link 147 is provided with a cylindrical rotation shaft 149 protruding on both sides, The part of the rotary shaft 149 protruding to the rear side is rotatably fitted to the support pin 137 of the cam plate 131 through the elongated hole 141 of the front side first regulation plate 133, and the part of the rotary shaft 149 protruding to the rear side. Is rotatably fitted in the elongated hole 142 of the second regulation plate 134 on the rear side. Further, the stepped pin 150 provided so as to project toward the front side of the rotary link 147 is rotatably fitted into the pin hole 151 provided at the front side first regulation plate 133, and is provided at the rear side of the rotary link 147. The protruding stepped pin 152 is rotatably fitted in a pin hole 153 provided in the second regulation plate 134 on the rear side. The other rotary link 148 is also configured in the same manner, the cylindrical rotary shaft 154 is provided so as to project to both sides, and the part of the rotary shaft 154 projecting to the front side is the elongated hole 1 of the first restriction plate 133.
The part of the rotary shaft 154 that rotatably fits into the support pin 138 of the cam plate 131 through 43 and rotatably fits in the rear side rotatably fits into the elongated hole 144 of the second restriction plate 134. In addition, the stepped pin 155 provided so as to project toward the front side of the rotary link 148 is provided with the first regulation plate 13
3 is rotatably fitted in the pin hole 156 provided on the stepped pin 3 and the stepped pin 1 is provided to project to the rear side of the rotary link 148.
57 is a pin hole 1 provided in the second regulation plate 134.
58 rotatably fitted. Then, as a whole, the spacers 135 and 136 of the first cam plate 131, the elongated holes 139 and 145 of the first regulation plate 133, the elongated holes 140 and 146 of the second regulation plate 134, and the mounting holes of the second cam plate 132 are attached. It is fixed through screws 161 and 162 through 159 and 160, respectively. Then, the mounting holes 16 provided in the lower portions of the rotary links 147 and 148
Locking pins 166 and 167 provided at both ends of the actuating plate 165 are rotatably fitted to the Nos. 3 and 164, and the actuating plate 165 has a front end pulled by a compression coil spring 168 and a rear end. Is connected to a solenoid 169.

Since the magnetic head switching mechanism is constructed as described above, when the solenoid 169 is in the non-excited state,
The operating plate 165 is pulled by the compression coil spring 168 in the direction of the arrow F1 indicated by the solid line, and therefore,
The rotary links 147, 148 rotate clockwise to provide stepped pins 150, 152 and 155, respectively.
157 raises the first regulation plate 133,
The regulation plate 134 is lowered. On the other hand, solenoid 1
On the contrary, when 69 is excited, the actuating plate 165 is pulled by the solenoid 169 in the direction of the arrow F2 indicated by the broken line, so that the rotating links 147 and 148 rotate counterclockwise and move respectively. With pin 150,15
2 and 155 and 157, the first regulation plate 133
Is lowered and the second regulation plate 134 is raised. When the regulation plates 133, 134 are located at the lowered position, the upper end portions 133a, 1 of the regulation plates 133, 134 are
34a is the cam surface 131 of the cam plates 131, 132.
When the restriction plates 133 and 134 are located at the rising position, the positions are substantially the same as the positions of the valleys of the a and 132a,
Upper end portions 133a, 134 of the regulation plates 133, 134
a is the cam surfaces 131a, 1 of the cam plates 131, 132
The position is almost the same as the position of the mountain portion of 32a.

FIG. 9 shows the relationship between such a magnetic head switching mechanism and a magnetic head. In FIG. 9, the cam surface 131a of the first cam plate 131 is in contact with the cam roller 171 provided at the rear end portion of the first head carrier 170, and the front end portion of the first head carrier 170 is
The first magnetic head 172 is rotatably provided by a mounting pin 173. Similarly, a cam roller 175 provided at the rear end of the second head carrier 174 is in contact with the cam surface 132a of the second cam plate 132, and
At the front end of the head carrier 174, the second magnetic head 1
76 is rotatably provided by a mounting pin 177. In addition, the cam rollers 171 and 175 have upper end portions 133a of the first and second regulation plates 133 and 134, respectively.
134a is also in contact. In the state shown in FIG. 9, the operating plate 165 is pulled by the solenoid 169, the first regulating plate 133 is lowered, and the second regulating plate 134 is raised. Therefore, the first head carrier 170 has the cam surface 131 a of the first cam plate 131.
It is possible to move up and down following the second head carrier 17
No. 4 is restricted by the second restriction plate 134 and cannot follow the cam surface 132 a of the second cam plate 132. Therefore, only the first magnetic head 172 is selected and moved up by the cam surface 131a, and writing on the magnetic stripe M1 of the passbook located at the recording position P becomes possible. Similarly, when the solenoid 169 is not excited, only the second magnetic head 176 is selected and the cam surface 1
It is possible to move up by 32a and write to the magnetic stripe M2 of another passbook located at the recording position P.

[0011]

However, in the above-mentioned conventional magnetic head switching mechanism, not only is the structure complicated and the number of parts is large, but when switching the magnetic head, the solenoid resists the restoring force of the tension coil spring. It is necessary to use a solenoid having a large holding force because the excited state must be maintained. For this reason, a large solenoid is required, and there is a problem that a large amount of current is consumed.

The present invention solves the above-mentioned conventional problems, and provides a magnetic head switching device which has a simple structure and is capable of using a driving means which is small and consumes less current. To aim.

In order to achieve the above object, the magnetic head switching device of the present invention has a magnetic head at the front end and a cam roller at the rear end, and can swing about a swing support shaft. A plurality of head carriers that are driven in the vertical direction, a cam plate that corresponds to the head carriers that come into contact with the respective cam rollers and vertically swing the magnetic heads on the tip side, and a vertical direction of the head carriers. A swingable regulating plate that selectively regulates the swinging of
Drive means for swinging the regulation plate in response to a switching signal. With this configuration, the vertical swing of the two head carriers can be selectively regulated by swinging only one regulating plate, so that the driving means having a simple structure and small current consumption is used. be able to.

Further, in the magnetic head switching device of the present invention, the shape of the cam surface of the cam plate has a portion for raising the magnetic head in a central portion and a portion for lowering the magnetic head at both end portions. However, the regulation plate is in the neutral position when there is no signal to the drive means, and is swung to one cam plate side by the first switching signal so that its upper end portion is positioned below the one cam roller. The second switching signal swings to the other cam plate side, and the upper end portion is positioned below the other cam roller. With this configuration, it is possible to regulate the vertical swing of one head carrier and free the vertical swing of the other head carrier simply by swinging the regulating plate.

The magnetic head switching device of the present invention is characterized in that the magnetic head is rotatably mounted on the head carrier. With this configuration,
The magnetic head can be closely attached to a magnetic recording surface such as a passbook.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic configuration of a magnetic head switching device according to an embodiment of the present invention.
The basic structure of the magnetic recording device is the same as that of the conventional example shown in FIG. That is, two head carriers 111 having different arm lengths are provided adjacent to each other on the guide carrier 113 shown in FIG. 7 according to the position of the magnetic stripe of the passbook, and each head carrier 111 is connected to the common guide carrier 113. The magnetic heads 112 are respectively provided on the head carriers 111, and the magnetic heads 112 are switched by selecting the respective head carriers 111 by the magnetic head switching device of the present invention.

In FIG. 1, two identical first and second cam plates 1 and 2 fixed to the machine frame have cam surfaces 1a and 2a at their upper ends. The cam surfaces 1a and 2a have slopes A and B at the boundaries between the peaks on both sides and the valley in the middle. Between the two cam plates 1 and 2 arranged in parallel, 1
The regulation plates 3 are arranged in parallel with these.
The regulation plate 3 has ears 4 and 5 bent at right angles at both ends, and the holes 4 formed in the ears 4 and 5 respectively.
The drive shaft 6 is passed through a and 5a and is fixed to the ears 4 and 5 so as not to rotate, and both ends of the drive shaft 6 are rotatably supported by the body frame. One end of the drive lever 7 is fixed to one end of the drive shaft 6, and the push rod 8a of the solenoid 8 is attached to the other end of the drive lever 7.
Are connected. Spacer shafts 9 and 10 each having a screw hole are projectingly provided at both inner ends of the first cam plate 1, and a long lengthwise direction is provided at a position of the regulation plate 3 facing the spacer shafts 9 and 10. Holes 11 and 12 are formed, and mounting holes 15 and 16 are formed at the opposite positions of the second cam plate 2. Therefore, the spacer shafts 9 and 10 of the first cam plate 1 are passed through the oblong holes 11 and 12 of the regulation plate 3 and abutted against the inner surface of the second cam plate 2, and the mounting screws 15 and 16 are attached to the second cam plate 2. The three plates 1, 2 and 3 are assembled by fastening them to the screw holes of the spacer shafts 9 and 10 through the mounting holes 13 and 14.

FIG. 2 shows the relationship between the magnetic head switching device and the magnetic head in this embodiment. In FIG. 2, the cam surface 1 a of the first cam plate 1 has a first cam roller 22 provided at a rear end portion of the first head carrier 21.
Are in contact with each other, and a first magnetic head 23 is rotatably provided at the tip of the first head carrier 21 by a mounting pin 24. Similarly, the second cam roller 26 provided at the rear end portion of the second head carrier 25 is in contact with the cam surface 2a of the second cam plate 2, and the tip end portion of the second head carrier 25 is A two magnetic head 27 is rotatably provided by a mounting pin 28. The corners of the inner side surface of the first cam roller 22 and the outer side surface of the second cam roller 26 are chamfered (flat or curved) 22a, 26.
a is formed. First and second head carrier 2
1, 25 have different arm lengths according to the positions M1 and M2 of the magnetic stripes of different passbooks at the recording position P,
Each rear end is rotatably supported by a common swing support shaft 29 (corresponding to the upper shaft 104 in FIG. 3) and is guided by a lead screw (corresponding to the guide carrier 113 in FIG. 3). ) Is linked to.
Further, the height dimension of the regulation plate 3 is such that the upper end portion thereof is equal to the height of the mountain portion of each cam surface 1a, 2a.

Next, the operation of this embodiment will be described. The first and second head carriers 21, 25
Means that the cam rollers 22 and 26 are respectively the cam plates 1 and
It is urged to rotate around the swing support shaft 29 by spring means (not shown) so as to come into pressure contact with the two cam surfaces 1a, 2a. The state shown in FIG. 2 is a neutral state when the solenoid 8 of FIG.
It is located in the middle of the cam plates 1 and 2. When a control unit (not shown) detects the position of the magnetic stripe of the passbook inserted in the apparatus, it sends a switching signal to the solenoid 8 to select the magnetic head that matches the position of the magnetic stripe. When the detected magnetic stripe position is M1, a forward current is applied to the solenoid 8 to pull the push rod 8a, and as shown in FIG.
The regulation plate 3 is rotated clockwise. As a result, the upper end of the regulation plate 3 goes under the second cam roller 26. Therefore, when the first and second head carriers 21 and 25 are axially moved by the lead screw through the guide carrier, the regulation plate 3 is at the same height as the peak portion of the cam surface 2a of the second cam plate 2. Since the second cam roller 26 cannot move following the cam surface 2a because the upper end portion of the second cam carrier 26 is positioned, the second head carrier 25 is prevented from swinging in the vertical direction, whereas the first cam The first cam roller 22 that is in contact with the cam surface 1a of the plate 1 can move freely, and when the first cam roller 22 enters the valley of the cam surface 1a, the first magnetic head 23 is lifted and the magnetic stripe. The recording operation becomes possible by touching M1.

The detected magnetic stripe position is M
In the case of 2, the current in the opposite direction is applied to the solenoid 8 to push out the push rod 8a, and the regulating plate 3 is rotated counterclockwise as shown in FIG. 3 (b).
As a result, the upper end of the regulation plate 3 goes under the first cam roller 22. Therefore, when the first and second head carriers 21 and 25 are axially moved by the lead screw via the guide carrier, the regulation plate 3 is located at the same height as the mountain portion of the cam surface 1a of the first cam plate 1. Since the upper end of the first cam roller 2 is located
Since 2 cannot move following the cam surface 1a, the first head carrier 21 is prevented from swinging in the vertical direction, while the first head carrier 21 is in contact with the cam surface 2a of the second cam plate 2. The second cam roller 26 can move freely, and when the second cam roller 26 enters the valley portion of the cam surface 2a, the second magnetic head 27 is lifted and comes into contact with the magnetic stripe M2 to enable the recording operation.

As described above, according to this embodiment, the magnetic heads 23 and 27 are provided at the front end portions, and the cam rollers 22 and 26 are provided at the rear end portions. Two head carriers 21 and 25 having different arm lengths that can be swung in the direction are provided, and the cam rollers 22 and 26 of each head carrier 21 and 25 are brought into contact with the cam surfaces 1a and 2a of the cam plates 1 and 2, respectively. By rolling in the axial direction of the swing support shaft 29, the magnetic heads 23 and 27 are lifted at the valleys of the cam surfaces 1a and 2a, and selectively contacted with the magnetic stripes M1 and M2 of the passbook respectively for recording. In the magnetic recording device that performs the two cam plates 1, 2
One restricting plate 3 which can be swung is disposed between the two, and the restricting plate 3 is swung from the neutral position to one cam plate side via the drive shaft 6 by the switching signal, and the upper end portion thereof is cam roller. By positioning it below, one cam roller cannot follow the cam surface of the cam plate, so only the other cam roller can follow the cam surface of the other cam plate, and the cam roller can When entering the trough, the magnetic head on the tip side is lifted and comes into contact with the magnetic stripe, and the recording operation can be performed.

In the above embodiment, the height dimension of the regulation plate 3 is set to be equal to the height of the ridges of the cam surfaces 1a and 2a at the upper end, but the height dimension of the regulation plate 3 is The magnetic head can be prevented from coming into contact with the magnetic stripe as long as it is higher than the valley portion of the cam surface by a predetermined amount or more and is equal to or lower than the mountain portion, so that it can be freely set within this range. Further, the solenoid 8 is used as a driving means.
, But it can also be driven by a motor. Further, in the above embodiment, the magnetic stripe of the passbook is used as the target of magnetic recording, but the magnetic stripe of the card may be used.

FIG. 4 is a perspective view of the passbook magnetic stripe reading device using the above magnetic head switching device with the cover removed, and FIG. 5 is a plan view of the magnetic stripe reading device. As for the A passbook 31 and the B passbook 32, the B passbook 32 has a larger width, and the magnetic stripes 31a and 32a are respectively formed.
The position of is also different. On the upper surface of the housing 34 into which the A passbook 31 and the B passbook 32 are inserted from the insertion direction 33, four orthogonal rollers 35 and one width-adjusting roller 36 are seen.
Further, on the upper surface of the housing 34, the second magnetic head 27 is arranged at a position facing the magnetic stripe 31 a of the A passbook 31, and the first magnetic head 23 is arranged at a position facing the magnetic stripe 32 a of the B passbook 32. It is arranged. Further, on the upper surface of the housing 34, a passbook insertion detection sensor 37, a passbook left edge detection sensor 38, and a passbook leading edge detection sensor 39 are arranged at predetermined positions on the left side in the passbook insertion direction 33, and on the right side in the passbook insertion direction 33. The A passbook right edge detection sensor 40 and the B passbook right edge detection sensor 41 are arranged at predetermined positions.

Next, the operation of this passbook magnetic stripe reader will be described with reference to FIG. When the A passbook 31 or the B passbook 32 is inserted from the passbook insertion direction 33, the passbook insertion detection sensor 37 detects the insertion (step S
1) The orthogonal roller 35 conveys the passbook into the apparatus (step S2). Next, when the passbook leading edge detection sensor 39 responds (ON to OFF when the sensor is a transmissive optical sensor, OFF to ON when the sensor is a reflective optical sensor) and the leading edge of the passbook is detected (step S3). , Whether or not the passbook left edge detection sensor 35 has reacted (step S4),
If the reaction does not occur, the width-adjusting roller 36 is driven to move the passbook to the left side until it hits the stopper (step S5), and it is checked again whether the passbook left end detection sensor 35 has reacted (step S4). When the passbook left end detection sensor 35 responds, it is checked whether or not the A passbook right end detection sensor 40 responds (step S6). When it does not respond, it is determined that the passbook or form is smaller than the A passbook 31, Reverse the orthogonal roller 35 and discharge it outside the device (step S
7) Warn that an error has occurred. A passbook right edge detection sensor 4
When 0 responds, the B-passbook right edge detection sensor 41 is further added.
Whether or not has reacted (step S8), if it does not react, it is determined to be A passbook 31, and if the previously detected passbook is B passbook 32, B passbook first magnetic head 23 And the second magnetic head 27 for passbook A is moved up to switch the magnetic heads (step S9), and the reading and writing operations for the magnetic stripe 31a by the second magnetic head 27 are started. If the B-passbook right edge detection sensor 41 responds, it is determined to be the A-passbook 31, and if the previously detected passbook is the A-passbook 31, the A-passbook second magnetic head 27 is lowered, The first magnetic head for B passbook 23 is raised to switch the magnetic head (step S10), and the read and write operations for the magnetic stripe 32a by the first magnetic head 23 are started.

As described above, the passbook magnetic stripe reader described above has the orthogonal roller 35 and the width-adjusting roller 36.
, Passbook insertion detection sensor 37, passbook left edge detection sensor 3
8, passbook leading edge detection sensor 39, A passbook right edge detection sensor 4
0 and the B passbook right edge detection sensor 41, it is possible to detect whether the passbook inserted in the apparatus is the A passbook 31 or the B passbook 32, and according to the detection result, the first passbook is detected. Since the magnetic head 23 or the second magnetic head 27 is switched, reading and writing can be appropriately performed on two types of passbooks having different sizes and magnetic stripe positions, and the magnetic head switching device of the present invention can be effectively utilized. it can.

[0026]

As described above, the magnetic head switching device of the present invention has the magnetic head at the front end and the cam roller at the rear end, and can swing about the swing support shaft. A plurality of head carriers driven in the direction, the cam plates corresponding to the head carriers that come into contact with the respective cam rollers to vertically swing the magnetic head on the tip side, and the vertical swing of each head carrier. It is provided with a swingable regulating plate for selectively regulating and a drive means for swinging the regulating plate in response to a switching signal.
Since the vertical swing of the two head carriers can be selectively regulated only by swinging the single regulation plate, it is possible to use a driving means having a simple structure and a small current consumption.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a schematic configuration of a magnetic head switching device according to an embodiment of the present invention.

FIG. 2 is a front view showing the relationship between the magnetic head switching device and the magnetic head according to the embodiment of the invention.

FIG. 3A is a front view showing a switching state of the magnetic head switching device according to the embodiment of the present invention to one side, and FIG. 3B is a front view showing the switching state of the magnetic head switching device according to the embodiment of the present invention to the other side. Front view showing the switching state

FIG. 4 is a perspective view showing a state in which a cover of the passbook magnetic stripe reading device using the magnetic head switching device according to the embodiment of the present invention is removed.

FIG. 5 is a plan view showing a state in which the cover of the passbook magnetic stripe reading device using the magnetic head switching device according to the embodiment of the present invention is removed.

FIG. 6 is a flowchart showing the operation of the passbook magnetic stripe reading device using the magnetic head switching device according to the embodiment of the present invention.

FIG. 7 is a schematic perspective view showing the basic configuration of a magnetic recording device to which the magnetic head switching device of the present invention is applied.

FIG. 8 is an exploded perspective view showing a schematic configuration of a magnetic head switching device in a conventional example.

FIG. 9 is a front view showing the operation of the conventional magnetic head switching device.

[Explanation of symbols]

1st cam plate 1a Cam surface 2 Second cam plate 2a Cam surface 3 regulation plate 4, 5 ears 6 drive shaft 7 Drive lever 8 solenoids 9, 10 Spacer shaft 11, 12 oblong hole 13, 14 mounting holes 15, 16 mounting screw 21 1st head carrier 22 1st cam roller 23 First magnetic head 24 mounting pins 25 1st head carrier 26 First Cam Roller 27 First magnetic head 28 mounting pins 29 Swing support shaft 31 A passbook 32 B passbook 31a, 32a Magnetic stripe 33 Passbook insertion direction 34 housing 35 Straight roller 36 Width roller 37 Passbook insertion detection sensor 38 Passbook left edge detection sensor 39 Passbook tip detection sensor 40 A passbook right edge detection sensor 41 B Passbook right edge detection sensor

Claims (3)

[Claims] 1. A plurality of head carriers, each of which has a magnetic head at a front end thereof and a cam roller at a rear end thereof, is swingable around a swing support shaft and is driven in an axial direction, and each of the cam rollers. Contacting with each other, the cam plate corresponding to the head carrier for vertically swinging the magnetic head on the tip side, and the swingable regulating plate for selectively restraining the vertical swing of each head carrier And a drive means for swinging the regulation plate in response to a switching signal. 2. The shape of the cam surface of the cam plate has a portion for raising the magnetic head in a central portion, and has portions for lowering the magnetic head at both end portions, wherein the regulating plate is the drive member. When there is no signal to the means, it is in the neutral position, swings to the side of one cam plate by the first switching signal and its upper end is positioned below the one cam roller, and the other by the second switching signal. 2. The magnetic head switching device according to claim 1, wherein the magnetic head switching device swings to the cam plate side and the upper end thereof is located below the other cam roller. 3. The magnetic head switching device according to claim 1, wherein the magnetic head is rotatably mounted on the head carrier.