JP2527390Y2 - Medium feeding device for passbook slip printer - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The invention includes a feed roller and a press roller for sandwiching and feeding a medium such as a passbook or a slip, and a magnetic stripe provided on the medium is pressed against a magnetic head. The present invention relates to a medium feeding device of a passbook slip printer having a head roller.

<Prior Art> A passbook slip printer prints transaction contents and the like on a medium such as a passbook and a slip, and reads and writes the transaction contents on a magnetic stripe provided on the medium. Therefore, there is provided a medium feeding device for running the medium in a state where the magnetic stripe is pressed against the magnetic head when feeding the medium to the printing position or performing reading and writing.

FIG. 5 is a schematic plan view of a conventional medium feeding apparatus, and FIG. 6 is a schematic right side view of the same.

As shown in the figure, two pairs of feed rollers 1 and press rollers 2 are provided on the left side and one pair on the right side. And these feed roller 1 and press roller 2
The medium 3 inserted between them is sandwiched by the press roller 2 above the medium 3 while being pressed against the lower feed roller 1, and the rotational force of the feed roller 1 causes the direction of the arrow A or vice versa. Sent in the direction.

Further, the medium feeding device is provided with a head roller 5 for pressing the magnetic stripe 3 a provided on the right side of the back surface of the medium 3 against the magnetic head 4 by pressing the surface of the medium 3. The head roller 5 is rotatably attached to one end of a holder 6, and is independently pressed and separated from the medium 3 by a solenoid 7 connected to the other end of the holder 6. Then, in order to minimize wear and contamination of the magnetic head 4, the medium 3 is run with the magnetic stripe 3 a pressed against the magnetic head 4 by the head roller 5 only when reading and writing.

<Problems to be solved by the invention> However, in the medium feeding device having the above-described configuration, the magnetic stripe
When reading and writing to 3a, magnetic stripe 3a
Due to the frictional resistance between the medium and the magnetic head 4, the right and left balance of the medium feeding by the feed roller 1 is lost, and the medium 3 is skewed clockwise when the medium is fed in the direction A in the conventional example of FIG.

Also, in order to eliminate the skew due to the frictional resistance, the pressing force of the right press roller 2a is increased and the right feed roller is increased.
If the feed force of 1a is increased, the skew will be counterclockwise in this case when reading and writing are not performed, that is, when the head roller 5 is separated from the medium 3 and there is almost no frictional resistance.

Therefore, the conventional medium feeding apparatus has a problem that the medium is skewed to cause print bending or running failure.

<Means for Solving the Problems> The present invention was devised to solve the above problems while minimizing wear and contamination of the magnetic head as described above. A holder that is composed of a second arm that is orthogonal to the arm and that integrally forms the first arm and the second arm is rotatably provided on a press shaft; A roller is provided at a position of the end of the first arm of the holder, which is located side by side with the plurality of press rollers, so as to face the magnetic head, and the head roller receives the rotational force from the first drive means. A shaft, a first rotator, a second rotator, and a third rotator, and a second drive unit connected to the second arm end of the holder via an elastic member; The roller is configured to be driven so as to be pressed against / separated from the medium. This is a medium feeding device for a passbook slip printer.

<Operation> In the present invention, first, the head roller can be pressed / separated from the medium by the second driving means. Second, the head roller is provided with a rotational force from the first driving means.

<Embodiment> An embodiment of the present invention will be described below with reference to the drawings.

The same numbers are used for the components that are not different from the conventional example.

FIG. 1 is a schematic plan view of a medium feeding device of the passbook slip printer according to the present invention, and FIG. 2 is a schematic front view of the same.

As shown in the figure, two pairs of feed rollers 1 and press rollers 2 are provided on the left side and one pair on the right side. The lower feed roller 1 is divided into left and right feed rollers and left and right feed rollers 8 and 9.
It is stuck to. The feed shafts 8, 9 are rotatably attached to left and right frames 10, 11, respectively. On the other hand, each press roller 2 located above is rotatably attached to an arm 12, and the arm 12 is
It is rotatably attached to. The press shaft 13 is rotatably attached to the left and right frames 10,11. Further, each arm 12 is urged downward by a coil spring 14.

Further, a head roller 5 having the same shape as the press roller 2 is provided so as to read and write the magnetic stripe 3 a of the medium 3 and face the magnetic head 4. As shown in FIG. 1, the head roller 5 is provided at the tip of the first arm portion 6a of the holder 6 rotatably supported by the press shaft 13 and at a position horizontally aligned with the press roller 2. I have. A second arm 6a is formed at the right end of the holder 6 so as to extend downward as shown in FIG. 3 and to be arranged orthogonal to the first arm 6a. The tip of the arm 6b is connected to the solenoid 7 via a solenoid link 15. A pin 32 is fixed to the tip of the arm 6b.
Is engaged with the elongated hole 15a of the solenoid link 15 and is connected to the solenoid 7 via an urging spring 33. Further, the solenoid link 15 is urged by a return spring 16 in the opposite direction to the solenoid 7. Therefore,
By turning on and off the current that excites the solenoid 7,
The head roller can be moved up and down independently of the press roller 2. Also, as described above, the second arm 6b
Is connected to the solenoid 7 via the biasing spring 33, so that the head roller 5 can be pressed against the medium 3 having various thicknesses.

In FIG. 2, above the press shaft 13, a power shaft 17 whose both ends are rotatably supported by the left and right frames 10, 11 is provided.

A roller gear 18 (third rotating body) is fixed to each of the press roller 2 and the head roller 5 as shown in FIGS. The roller gear 18 (third rotating body) includes an idle gear 19 rotatably attached to the arm 12 and the left end portion 6a of the holder 6, and a sub gear 20 (third rotating body) rotatably attached to the press shaft 13. The power shaft gear 21 (first rotator) fixed to the power shaft 17 via the second rotator.

At the left end of the power shaft 17, a first line feed gear 22 is fixed. The first line feed gear 22 is connected to a motor gear 24 via a transmission gear 23, as shown in the schematic left side views of FIGS. The motor gear 24 is fixed to a rotating shaft 25a of the motor 25.

Further, the transmission gear 23 is connected to a second line feed gear 26 fixed to the left end of the left feed shaft 8. As shown in FIGS. 1 and 2, a second line feed gear 27 is also fixed to the right end of the right feed shaft 9, and a first line fixed to the right end of the power shaft 17 via a transmission gear 28. It is connected to the feed gear 29.

The feed roller 1 and the press roller 2 and the magnetic head 4 and the head roller 5 are opposed to each other through four holes 31 provided in upper and lower guide plates 30 for guiding the medium 3.

With the above configuration, the motor 25 (first
Is rotated, the power shaft 17 and the left feed shaft 8 rotate, and when the power shaft 17 rotates, the right feed shaft 9 rotates. As a result, the feed roller 1 rotates. further,
The rotation of the power shaft 17 causes the press roller via the power shaft gear 21 (first rotating body), the sub gear 21 (second rotating body), the idle gear 19, and the roller gear 18 (third rotating body). Rotational force is transmitted to 2 and head roller 5. That is, a rotational force for feeding the medium 3 is applied to the head roller 5 as well as the feed roller 1 and the press roller 2.

When feeding the medium 3, the press shaft 13 is rotated by a driving unit (not shown) to press the press roller 2 against the medium 3, and the medium 3 is sandwiched together with the feed roller 1, and the direction of the arrow A or Feed in the opposite direction. At this time, since the arm 12 is urged downward by the coil spring 14 as described above, the press roller 2 can be pressed against the medium 3 having various thicknesses.

Further, when the medium 3 is fed without reading or writing to the magnetic stripe 3a provided on the back surface of the medium 3,
Alternatively, when feeding the medium 3 without the magnetic stripe 3a, the current for exciting the solenoid 7 is turned off. In such a state, the solenoid link 15 is
, The head roller 5 is held in a state of being separated from the medium 3 and idles. Therefore, the medium 3 has its magnetic stripe
3a is not pressed against the magnetic head 4 so that the magnetic stripe
The paper is fed without skew without receiving frictional resistance between the magnetic head 3a and the magnetic head 4.

When reading and writing on the magnetic stripe 3a of the medium 3 at the same time as the feeding of the medium 3, the solenoid 7 is excited to lower the head roller 5 and press the medium 3 against the medium 3. As a result, the magnetic stripe 3a moves while being pressed against the magnetic head 4 to perform reading or writing.
In addition, at this time, since the head roller 5 is also provided with a rotational force for feeding the medium 3 in the same manner as the feed roller 1 and the press roller 2, the medium 3 is located between the magnetic stripe 3 a and the magnetic head 4. Even if a frictional resistance is received, a feed force that can oppose the frictional resistance is applied and the paper is fed without skew.

<Effects of the Invention> As described above, according to the medium feeding apparatus of the present invention, first, the second driving means for driving the head roller to press / separate the medium from / to the medium is provided. Therefore, when reading or writing is not performed on the magnetic stripe, the head roller can be kept away from the medium.

Therefore, wear and contamination of the magnetic head due to unnecessary frictional resistance from the medium and the rotating head roller on the magnetic head can be prevented as much as possible.

Secondly, since the rotational force from the first driving means is transmitted to the head roller via a power shaft or a rotating body, even when the head roller is pressed against the medium, it may cause print curl or deformation. The medium can be stably fed without running failure.

Further, in the present invention, an excellent passbook slip printer having the above-described effects can be realized by a simple combination of a shaft, a holder, and a rotating body.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of a medium feeding apparatus according to the present invention provided in a passbook slip printer, FIG. 2 is a schematic front view thereof, and FIG. 3 is a schematic view for explaining the operation of a head roller. FIG. 4 is a schematic left side view of the same, FIG. 5 is a schematic plan view of a conventional medium feeding apparatus, and FIG. 6 is a schematic right side view of the same. 1 ... feed roller, 2 ... press roller, 3 ... medium, 3
a ... Magnetic stripe, 4 ... Magnetic head, 5 ... Head roller.

Claims (1)

(57) [Scope of request for utility model registration] 1. A medium feeding device for a passbook slip printer, wherein a medium is pinched and fed by a plurality of opposed feed rollers and a press roller, and a magnetic stripe provided on the medium is read and written. A first drive unit for applying a rotational force to the feed roller; a feed shaft to which the feed roller is fixed; and an arm provided to face the feed shaft and rotatably mounted with the press roller. A press shaft urged toward the feed roller side via a member, a first arm, and a second arm orthogonal to the arm, and the first arm and the second arm An holder integrally formed with the arm, and rotatably supported by the press shaft; and a plurality of press rollers at an end of the first arm of the holder. A head roller provided at the side-by-side position so as to face the magnetic head, and rotatably provided in the same shape as the press roller; and a power shaft to which a rotational force is given by the first driving means. A first rotating body fixed to the power shaft, and rotatably supported by the press shaft;
A second rotating body that is in contact with the first rotating body, and is fixed to the head roller, and rotational force from the power shaft is applied to the head roller via the first rotating body and the second rotating body. A third rotating body to be provided, and second driving means connected to the tip of the second arm of the holder via an elastic member and driving the head roller so as to press / separate the medium from / to the medium. A medium feeding device for a passbook slip printer.