JP2000233851A - Medium outer side shifting mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a mechanism from being complex, make the cost of a device lower, and make processing time shorter. SOLUTION: In this medium outer side shifting mechanism wherein the mechanism is provided with upper side carrying rollers 2 and 3, lower side carrying rollers 4, and 5, and with a roller evacuation mechanism permitting one of the upper side carrying rollers 2 and 3 and the lower side carrying rollers 4, and 5 to be evacuated so as to let a medium 1 be in a free condition, so that outer side shifting is performed by letting the medium 1 abut against a reference plane formed at one side surface of a medium carrying passage, a flexible member 17 is disposed to the opposite side of the reference plane while the medium 1 is being held in between, both the ends of the flexible member 17 are supported while the medium 1 is held in its thickness direction, its one end is fixedly supported as a fixed end 17a, the other end is supported and connected with the roller evacuation mechanism so as to be formed into a movable end 17a to be interlocked with the action of the roller evacuation mechanism, and the flexible member 17 also permits its intermediate part 17c to be curved outward so as to be in a noncontact condition with respect to a medium 1 side part when its roller is held in between, and when the roller is evacuated, the movement of the movable end thereby allows the curvature to be stretched to let the medium 1 abut against the reference plane by means of the intermediate part 17c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medium width shifting mechanism in a medium transport device such as a passbook handling device.

[0002]

2. Description of the Related Art In a medium transporting apparatus, in particular, a passbook handling apparatus, in order to prevent a writing skew of a magnetic stripe and a printing skew, the width of the medium is shifted toward one reference side in the running direction. Conventionally, after the medium is conveyed to the width-adjusting position, the clamp of one of the conveying rollers is released by a driving means such as a solenoid to release the medium, and then the medium is moved to the medium side on the side opposite to the reference surface. The width of the portion is adjusted by driving the plate by a driving means such as a solenoid to hit the plate, or by pulling the medium from the reference surface side by making full use of a link mechanism.

[0003]

However, according to the prior art having the above-described structure, a means for releasing the clamp and a means for pushing or pulling the medium are required, the mechanism becomes complicated, the cost is increased, and the operation sequence is increased. There was a problem that processing time was fixed.

SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a structure in which the release of the clamp and the media width shifting are performed by a single drive system and a simple mechanism, thereby preventing the mechanism from becoming complicated and reducing the cost of the apparatus. And to shorten the processing time.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is to adjust the width of a medium by a flexible member which selectively expands and contracts a curve in conjunction with a clamping operation and a releasing operation. . In other words, the present invention has a transport roller for nipping and transporting a medium, and a roller retreat mechanism for retracting one of the transport rollers to make the medium free, and a reference surface formed on one side of the media transport path. In a medium width shifting mechanism that abuts a medium on the medium, a flexible member is disposed on the opposite side of the medium with respect to the reference plane, and both ends of the flexible member are aligned in the thickness direction of the medium. One end is fixedly supported to be a fixed end, the other end is connected to and supported by a roller retracting mechanism, and is a movable end that is interlocked with the operation of the roller retracting mechanism. At the time, the middle portion curves outward and keeps the non-contact state with the side portion of the medium, and when the medium roller is retracted, the bending of the medium is extended by the movement of the movable end so that the medium hits the reference surface by the middle portion. Features.

Further, in the above structure, the flexible member is formed of a member having elasticity. Furthermore, in the above configuration, a regulating member that regulates the inward bending of the intermediate portion of the flexible member is disposed. The flexible member may have a flat shape in a free state, or may have a shape having a curve in a free state with the curve facing outward.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1A and 1B are side views showing a first embodiment of the present invention, wherein FIG. 1A shows a state before width adjustment, FIG. 1B shows a state at the time of width adjustment operation, and FIG. 1C shows a state after width adjustment. Is shown. FIG.
FIG. 1 is a front view showing a first embodiment of the present invention,
(A) shows the state before the width adjustment, (b) shows the state during the width adjustment operation, and (c) shows the state after the width adjustment. 3A and 3B are plan views of the first embodiment of the present invention, in which FIG. 3A shows a state before the width adjustment, and FIG. 3B shows a state after the width adjustment.

In FIG. 1, reference numeral 1 denotes a medium, and here, a passbook is shown. The medium 1 includes upper conveying rollers 2 and 3 and lower conveying rollers 4 and 5 rotated by driving means (not shown).
And transported. The lower transport rollers 4 and 5 are rotatably attached to one ends of levers 6 and 7 via shafts 8 and 9. The levers 6, 7 are fulcrums 10, 1
The other end of each of the levers 6 and 7 is connected to a link 12 via fulcrums 13 and 14. Here, one end of the link 12 is connected to a solenoid 15, and the solenoid 15 is driven and sucked by a driving means (not shown). The state of a) is maintained. In this embodiment, the levers 6 and 7, the fulcrums 13 and 14, the link 12, the solenoid 15, and the reset spring 16 are used.
Constitute a roller retracting mechanism.

Reference numeral 17 denotes a flexible member constituted by a thin plate spring, which is disposed on the opposite side of the reference surface 18 shown in FIG. A fixed end 17a which is one end of the flexible member 17 and a movable end 17b which is the other end are supported with the thickness direction of the medium 1 interposed therebetween.
It is supported by. On the other hand, the movable end is attached to a lever 21 via a fulcrum 20, and the lever 21 is
The other end of the lever 21 is connected to the link 12 via a fulcrum 23. In this way, the movable end 17b is connected and supported by the roller retracting mechanism, and interlocks with the operation of the roller retracting mechanism.

Here, the flexible member 17 is attached such that the intermediate portion 17c curves outward and keeps a non-contact state with the side of the medium 1 when the roller is sandwiched. In addition, the length and the installation position of the flexible member 17 are set to be sufficiently large with respect to the width of the medium 1 so that the medium 1 conveyed obliquely is not caught when the distance between the intermediate portion 17c and the reference surface 18 is nipped. Set to be larger. In addition, the stroke amount of the solenoid 15 is set so that the distance between the intermediate portion 17c and the reference surface 18 is slightly smaller than the width of the medium 1 in order to push the medium 1 to the reference surface 18 with a margin when retracting the rollers.

Reference numeral 24 denotes a regulating member disposed slightly outside the line connecting the support points at both ends of the flexible member 17 to prevent the bending of the flexible member 17 from inward. As shown in FIG. 3, on the extension of the medium transport path,
The print head 25, a magnetic stripe read / write mechanism (not shown), a page reading mechanism, and the like are arranged in a positional relationship necessary for processing the medium 1. For example, the print head 25 is configured such that the traveling direction B is perpendicular to the medium transport direction A.

The operation of this embodiment having the above configuration will be described below. The medium 1 is conveyed to the position shown in FIG. 1 by the conveying rollers 2 to 5 after inhaling or before updating the magnetic stripe. During this time, the solenoid 15 is not driven,
The roller retracting mechanism keeps the roller held by the urging force of the reset spring 16. When the roller is held, the intermediate portion 17c of the flexible member 17 is bent outward as shown in FIG. 1A and FIG.

As shown in FIG. 3A, the transported medium 1 is not parallel to the transport direction A due to the state of suction or the like. Therefore, in this state, the relative positions of the medium 1 and the print head 25 and other mechanical units are lost,
Subsequent processing becomes abnormal. For example, the traveling direction B of the print head 25 for printing and the medium 1 are not at a right angle, but are obliquely printed.

In order to correct this, width adjustment is performed by the following operation. First, roller retraction is started, and the solenoid 15
When the is sucked, the link 12 is pulled in the direction of the arrow as shown in FIGS. 1 (b) and 2 (b), so that the levers 6, 7, 2
1 rotate with respect to fulcrums 13, 14, 22 respectively. As a result, the lower transport rollers 4 and 5 are retracted downward, and the medium 1 is in a free state. On the other hand, the flexible member 17
The movable end 17b of the flexible member 17 also descends in conjunction with the movement of the fulcrum 20 of the lever 21, and as a result, the distance between the movable end 17b and the fixed end 17a of the flexible member 17 increases and the curvature is elongated. As a result, the position of the intermediate portion 17c of the flexible member 17 moves to the reference surface side, and strikes the side of the medium 1 so that the medium 1 strikes the reference surface 18.

Since the stroke of the solenoid 15 is set to such an amount that the medium 1 can be pushed off with some margin as described above, the medium 1 slightly bends downward and surely hits the reference surface 18 by this restoring force. Will be.
Thereafter, by releasing the suction of the solenoid 15,
1C and 2 by the reset spring 16.
The transport rollers 4 and 5 are clamped again as shown in FIG.

As described above, the running direction of the print head 25 and the relative position of other mechanical units (not shown) are corrected by correcting the bending of the medium 1 to the reference plane 18 so that the subsequent processing can be performed normally. It can be carried out. FIG. 4 is a front view showing the second embodiment of the present invention, and shows a state at the time of a width shifting operation.

In FIG. 1, reference numeral 27 denotes a flexible member made of elastic rubber. Note that the other configuration is the same as that of the first embodiment, so that the description is omitted, and the same reference numerals are used. The operation of the present embodiment having the above configuration will be described below. First, the basic operation is the same as in the first embodiment.

As shown in FIG. 4, the flexible member 2
When 7 is pulled down, the medium 1 is pushed from the side and pressed against the reference surface 18. However, since the flexible member 27 has elasticity, after the medium hits the reference surface 18, the medium itself does not bend and the flexible member 27 bends due to the waist of the medium, and the restoring force ensures This impinges on the reference surface 18.

Thereafter, the end state is the same as in the first embodiment. If the flexible member has elasticity as described above, it is possible to prevent the medium from being damaged by the pressing of the flexible member when the width is approached. FIG. 5 is a perspective view of an essential part for explaining a third embodiment of the present invention, and shows a shape of a flexible member in a free state. FIG. 6 is a perspective view of a main part of the first and second embodiments of the present invention, wherein (1) is a flexible member in a free state, and (2) is a shape of a flexible member in a mounted state. Is shown.

In the first and second embodiments, the flexible member 17 (27) is a flat member in a free state as shown in FIG. 6 (a) to prevent the bending from going inward. Therefore, in the third embodiment, the regulating member 24 is attached.
As shown in FIG. 5, a flexible member 37 which is formed by bending in advance is used with the bending being supported outward. With the above configuration, the bending of the flexible member 37 always keeps the outward tendency, and prevents the bending from inward.

According to the third embodiment, the inward bending of the flexible member 37 can be more securely prevented, and the restriction member need not be provided. In the first, second, and third embodiments described above, the shape of the flexible member is a plate. However, the shape is not limited to this, and may be a rod or any other shape.

Further, the number of rollers to be retracted and the number and arrangement of the flexible members are not limited to the numbers and arrangements in the above embodiment.

[0023]

As described above in detail, according to the present invention, there is provided a transport roller for nipping and transporting a medium, and a roller retracting mechanism for retracting one of the transport rollers and freeing the medium. Then, in a medium width-adjusting mechanism that abuts the medium against a reference surface formed on one side surface of the medium conveyance path to perform width-adjustment, a flexible member is disposed on the opposite side of the medium with respect to the reference surface, Both ends of the flexible member are supported across the thickness direction of the medium, one end is fixedly supported to be a fixed end, and the other end is connected to and supported by a roller retracting mechanism and is a movable end linked to the operation of the roller retracting mechanism. And, the flexible member, when the roller is sandwiched, the intermediate portion curves outward and keeps the non-contact state with the medium side portion, and when the medium roller is retracted, the curve is stretched by the movement of the movable end. Because the medium hits the reference surface by the middle part The flexible member for stretching the selectively curved in conjunction with the clamping operation and the releasing operation can be performed transversely shifting of the medium.

Thus, it is possible to release the clamp and shift the medium width by one driving system and a simple mechanism.
This has the effect of preventing the mechanism from becoming complicated, realizing a reduction in the cost of the apparatus and a reduction in the processing time. Furthermore, in the above configuration, if the flexible member is formed of a member having elasticity, after the medium hits the reference surface, the medium itself does not bend and the flexible member is bent by the waist of the medium. Since the restoring force surely hits the reference surface, there is an effect that the medium is prevented from being damaged by the pressing of the flexible member at the time of approaching the width.

Further, in the above configuration, if a restricting member for restricting the inward bending of the intermediate portion of the flexible member is arranged, it is possible to reliably prevent the inward bending of the intermediate portion of the flexible member. effective. Furthermore, if the flexible member has a shape having a curve in a free state, and the curve is supported outward during installation, the flexible member always has a tendency to bend outward, without relying on the regulating member. In addition, there is an effect that the inward bending of the intermediate portion of the flexible member is prevented.

[Brief description of the drawings]

FIG. 1 is a side view showing a first embodiment of the present invention.

FIG. 2 is a front view showing the first embodiment of the present invention.

FIG. 3 is a plan view of the first embodiment of the present invention.

FIG. 4 is a front view showing a second embodiment of the present invention.

FIG. 5 is a perspective view of an essential part for explaining a third embodiment of the present invention.

FIG. 6 is a perspective view of a main part of the first and second embodiments of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Medium 2,3 Upper conveyance roller 4,5 Lower conveyance roller 6,7 Lever 6,7 8,9 Shaft 10,11 Support 12 Link 13,14 Support 15 Solenoid 16 Reset spring 17 Flexible member 17a Fixed end 17b Movable end 17c Intermediate part 18 Reference surface 19 Shaft 20 Support 21 Lever 22 Support 23 Support 24 Control member

Claims (5)

[Claims] A transport roller for nipping and transporting the medium; and a roller retracting mechanism for retracting one of the transport rollers to make the medium free, and a reference surface formed on one side of a medium transport path. In a medium width shifting mechanism for hitting a medium to perform width shifting, a flexible member is disposed on the opposite side of the medium with respect to the reference plane, and both ends of the flexible member are sandwiched in a thickness direction of the medium. Supported by
One end is fixedly supported to be a fixed end, the other end is connected to and supported by a roller retracting mechanism, and is a movable end linked to the operation of the roller retracting mechanism, and the flexible member has an intermediate portion when the roller is clamped. A medium width characterized by being curved outward and keeping a non-contact state with the side of the medium, and when the medium roller is retracted, the curve is stretched by movement of the movable end, and the medium is caused to hit the reference surface by the intermediate portion. Shift mechanism. 2. The medium width shifting mechanism according to claim 1, wherein the flexible member is made of an elastic member. 3. The medium width shifting mechanism according to claim 1, further comprising a regulating member that regulates an inward bending of an intermediate portion of the flexible member. 4. The medium width shifting mechanism according to claim 1, wherein the flexible member has a flat shape in a free state. 5. The medium width shifting mechanism according to claim 1, wherein the flexible member has a shape having a curve in a free state, and the flexible member is supported with the curve facing outward. A medium width shifting mechanism.