JP2009184753A - Medium processing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a medium processing device capable of surely conveying even a short medium from a first conveyance path to a second conveyance path and miniaturized by reducing a medium conveying mechanism. <P>SOLUTION: This medium conveying device comprises a first conveyance path 1, a second conveyance path 2 branched from the first conveyance path, a blade 3 turnably provided near a branch point so as to select the conveying direction, and a conveying means for conveying the medium to the first conveyance path 1 or the second conveyance path 2 by pinching the medium. An auxiliary roller 21 which abuts on the conveying means is coaxially provided on a shaft of the blade 3. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a medium transport mechanism in a medium processing apparatus such as paper sheets.

  2. Description of the Related Art Conventionally, in a medium processing apparatus that transports a medium such as banknotes and performs a desired process, as shown in FIG. 8, as a technique for switching the transport direction, a blade for switching a transport direction that is rotatably provided near a branch point 3, there is a technique for switching the direction to the first transport path 1 or the second transport path 2 branched from the first transport path 1, and the transport direction switching mechanism is shown in FIG. As described above, a configuration in which a plurality of blades 3 are fixed to the blade shaft 3x is common.

  Then, in order to transfer the medium from the second transport path 2 to the third transport path 20 on the extension of the second transport path 2 as a separate unit, the roller pair 8 downstream of the second transport path 2, 9 is generally used.

Alternatively, when the blade is switched so that the medium having a short length can be transported to the second transport path, the pressure roller provided on the blade is fed on the second transport path. There has been a technique of contacting the roller (see, for example, Patent Document 1).
JP 2004-338913 (paragraphs “0010” to “0014”, FIG. 1)

  However, in the case of the configuration shown in FIG. 8, a medium having a length equal to or shorter than the distance L from the feed roller 8 downstream of the second transport path to the pressure roller 11 upstream of the first transport path is the first transport. It could not be transported from the path to the second transport path.

  In the case where the pressure roller provided on the blade contacts the feed roller on the second transport path when the blade is switched so as to transport the medium to the second transport path, the second The medium having a length equal to or shorter than the distance M from the feed roller on the first conveyance path to the feed roller upstream of the first conveyance path could not be conveyed from the first conveyance path to the second conveyance path (Patent Document 1). reference).

  In any of the above cases, the feed roller roller and the pressure roller pair for transferring the medium to the third conveyance path which is an extension of the second conveyance path in another unit is provided downstream of the second conveyance path. Therefore, the medium transport mechanism cannot be reduced, and the medium processing apparatus cannot be reduced in size.

  The present invention employs the following means in order to solve the aforementioned problems. A first conveyance path, a second conveyance path branched from the first conveyance path, a conveyance direction switching blade provided rotatably in the vicinity of the branch point, and a medium sandwiched between the first conveyance path In a medium conveying apparatus having a conveying means for conveying to one conveying path or a second conveying path, an auxiliary roller contacting the conveying means is provided on the same axis as the shaft of the blade.

  According to the medium processing apparatus of the present invention, the first conveyance path, the second conveyance path that branches from the first conveyance path, and the conveyance direction switching switch that is rotatably provided near the branch point. An auxiliary roller that is in contact with the conveying means on the same axis as the shaft of the blade in a medium conveying apparatus comprising a blade and a conveying means that sandwiches the medium and conveys the medium to the first conveying path or the second conveying path Thus, even a medium having a short length can be reliably conveyed, the medium conveying mechanism can be reduced, and the medium processing apparatus can be downsized.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, the same code | symbol is attached | subjected to the element which is common in drawing.

(Constitution)
FIG. 1 is a configuration diagram illustrating a transport mechanism according to the first embodiment. As shown in the figure, the medium transport mechanism of the first embodiment includes a first transport path 1 provided in a straight line and a second transport path 2 branched from the middle of the first transport path 1. And arranged on the extension of the second conveyance path, provided on the first conveyance path 1, the third conveyance path 20 as a separate unit, the feed roller 10 arranged in the branching section, and Feed rollers 4 and 6, pressure rollers 5, 7 and 11 facing them, and a feed roller 12 and a pressure roller 13 provided along the third conveyance path 20. .

  And the conveyance direction switching mechanism which showed the external view in FIG. 2 is provided in the branch part of the 1st conveyance path 1 and the 2nd conveyance path 2. FIG. As shown in the figure, the transport direction switching mechanism of the medium transport mechanism of the first embodiment has a configuration in which a plurality of pressure rollers 21 functioning as blades 3 and auxiliary rollers are arranged coaxially with the blade shaft 3x. .

  The blade 3 is fixed to the blade shaft 3x and can be rotated by using a solenoid (not shown) as a drive source. The pressure roller 21 is rotatable between the plurality of blades 3 and the shaft of the blade shaft 3x. The direction is fixed and arranged.

  As shown in FIG. 1, the feed rollers 4, 6, 10 and 12 are provided so as to abut on the pressure rollers 5, 7, 11 and 13, respectively.

  The roller pairs 4, 5 and the roller pairs 6, 7 are located on the first conveyance path 1, and the roller pairs 12, 13 are defined on the third conveyance path 20 so as to be positioned before and after the blade 3. It is provided at a position and is arranged so as not to prevent the rotation of the blade 3.

  The roller pairs 10 and 11 are provided at the branching portions of the first conveyance path 1 and the second conveyance path 2, and the rotation range and arrangement of each blade 3 are shifted as shown in FIG. The blade 3 is not hindered from rotating.

  As shown in the figure, the pressure roller 21 is provided with a hollow shaft 21a, the hollow shaft 21a is pressed against the feed roller 10 by a leaf spring 22, and the feed roller 10 is rotated by a motor or the like (not shown). It is designed to be held and transported. The leaf spring 22 functions so that the pressure roller 21 does not move in the blade shaft 3x axial direction.

(Operation)
With the above configuration, the medium processing apparatus according to the first exemplary embodiment operates as follows. This operation will be described in detail below with reference to the block diagram of the transport mechanism of the first embodiment shown in FIG. 1 and the block diagram of the transport direction switching mechanism of the first embodiment shown in FIG.

  First, the medium P conveyed from the direction of the arrow A is nipped by a roller pair formed by the feed rollers 4, 6 and 10 and the pressure rollers 5, 7 and 11, and is conveyed by the rotation of the feed rollers 4, 6 and 10. Is done.

  As shown by the solid line, when the blade 3 is switched by a solenoid (not shown) or the like so as to be inclined while blocking the first conveyance path 1, the medium P conveyed by the rotation of the feed roller 4 is fed with the feed roller 10 and the pressure. After being pinched by the roller 11, it is guided by the blade 3 and guided to the second transport path 2.

  At this time, since the pressure roller 21 having the hollow shaft is pressed against the feed roller 10, the medium P is sandwiched and the feed roller 12 and the pressure roller 13 provided along the third conveyance path 20 of another unit. And conveyed in the direction of arrow B.

  At this time, since the feed force to the medium is generated by the feed roller 10 and the pressure roller 21, it is not necessary to separately arrange the roller pairs 8 and 9 for delivery to another unit as shown in FIG. The medium can be reliably delivered to the feed roller 12 and the pressure roller 13 provided along the third conveyance path 20 as they are.

  Here, the distance Lm between the pressure roller 11 and the pressure roller 21 shown in FIG. 3 is shorter than the distance L shown in FIG. Can be transported.

  Further, the distance Lm is shorter than the distance M (see Patent Document 1) from the feed roller on the second conveyance path that contacts the pressure roller provided on the blade to the feed roller upstream of the first conveyance path. Even in the case of a medium whose length is shorter than M, it is possible to reliably transport by switching the transport direction.

  When the blade 3 is switched so as to be parallel to the first transport path 1 as indicated by a broken line, the medium P is guided so as to advance straight by the blade 3 and is sandwiched between the feed roller 6 and the pressure roller 7. The first conveyance path 1 is conveyed in the direction of arrow C.

(Effect of Example 1)
As described above, according to the medium processing apparatus of the first embodiment, the linear first transport path, the second transport path branched from the first transport path, and the vicinity of the branch point can be rotated. A medium conveying apparatus comprising: a conveying direction switching blade provided on the medium; and conveying means for nipping and conveying the medium to the first conveying path or the second conveying path. Since the auxiliary roller that comes into contact with the conveying means is provided, the medium conveying mechanism can be made small and the medium processing apparatus can be miniaturized. Become.

(Constitution)
FIG. 4 is a configuration diagram illustrating a transport mechanism according to the second embodiment. As shown in the figure, the medium transport mechanism of the second embodiment includes transport belts 31, 32, and 33 that constitute the first transport path 1, and pulleys that rotatably support the transport belts 31, 32, and 33. 34, 35, 36, 37, 38, 39, the second conveyance path 2 branched from the middle of the first conveyance path, and an extension of the second conveyance path 2; And a feed roller 12 and a pressure roller 13 provided along the third conveyance path 20.

  And the conveyance direction switching mechanism which showed the external view in FIG. 5 in the branch part of the 1st conveyance path 1 and the 2nd conveyance path 2 is provided. As shown in the figure, the transport direction switching mechanism of the medium transport mechanism of the second embodiment has a configuration in which a plurality of pressure rollers 21 functioning as blades 3 and auxiliary rollers are arranged coaxially with the blade shaft 3x. .

  The blade 3 is fixed to the blade shaft 3x and can be rotated by using a solenoid (not shown) as a drive source. The pressure roller 21 is rotatable between the plurality of blades 3 and the shaft of the blade shaft 3x. The direction is fixed and arranged.

  A pulley 39 is arranged on the same axis as the feed roller 44 that is a roller pair with the pressure roller 21, and the roller pair 21, 44, the conveyance belt 31, and the pulley 39 do not hinder the rotation of the blade 3. Is arranged.

  As shown in the figure, the pressure roller 21 is provided with a hollow shaft 21a, the hollow shaft 21a is pressed against the feed roller 44 by a leaf spring 22, and the feed roller 44 is rotated by a motor or the like (not shown). It is designed to be held and transported. The leaf spring 22 functions so that the pressure roller 21 does not move in the blade shaft 3x axial direction.

  Further, as shown in FIG. 4, the feed roller 12 is provided so as to contact the pressure roller 13.

(Operation)
With the above configuration, the medium processing apparatus according to the second embodiment operates as follows. This operation will be described in detail below with reference to the block diagram of the transport mechanism of the second embodiment in FIG. 4 and the block diagram of the transport direction switching mechanism of the second embodiment in FIG.

  First, the medium P transported from the direction of the arrow A in a state where the transport belts 31, 32, and 33 are rotated through pulleys 34, 35, 36, 37, 38, and 39 by a motor or the like (not shown) is transported from the transport belt 31. , 32, and conveyed to the blade 3 side by the rotation of the conveying belts 31, 32.

  When the blade 3 is switched by a solenoid or the like (not shown) so as to obstruct the first conveying path 1 as shown by a solid line and become oblique, the medium P that is nipped and conveyed by the conveying belts 31 and 32 is conveyed by the blade 3. It is guided obliquely and guided to the second transport path 2.

  At this time, since the pressure roller 21 having the hollow shaft is pressed against the feed roller 44, the medium P is sandwiched and the feed roller 12 and the pressure roller 13 provided along the third conveyance path 20 of another unit. And conveyed in the direction of arrow B.

  At this time, since the feed force to the medium is generated by the feed roller 44 and the pressure roller 21, it is not necessary to separately arrange the roller pairs 8 and 9 for delivery to another unit as shown in FIG. The medium can be reliably delivered to the feed roller 12 and the pressure roller 13 provided along the third conveyance path 20 as they are.

  Here, since the distance Lm between the pressure roller 21 and the conveying belt 32 shown in FIG. 6 is shorter than the distance L shown in FIG. 9, even in the case of a medium whose length is shorter than L, the conveying direction is ensured. Can be switched for transport.

  Further, the distance Lm is shorter than the distance M (see Patent Document 1) from the feed roller on the second conveyance path that contacts the pressure roller provided on the blade to the feed roller upstream of the first conveyance path. Even in the case of a medium whose length is shorter than M, it is possible to reliably transport by switching the transport direction.

  Further, when the blade 3 is switched so as to be parallel to the first transport path 1 as indicated by a broken line, the medium P is guided so as to advance straight by the blade 3 and is sandwiched between the transport belts 32 and 33 and is first Is conveyed in the direction of arrow C.

(Effect of Example 2)
As described above, according to the medium processing apparatus of the second embodiment, the linear first transport path, the second transport path branched from the first transport path, and the vicinity of the branch point can be rotated. And a conveying means for nipping the medium and conveying the medium to the first conveying path or the second conveying path. The conveying means is arranged in the vicinity of the branch point and is conveyed. In the medium conveying apparatus provided with a feed roller arranged coaxially with a pulley that can be driven to rotate by a belt, an auxiliary roller that contacts the conveying means is provided coaxially with the shaft of the blade, so that the length is short. The medium can be reliably conveyed, the medium conveyance mechanism can be reduced, and the medium processing apparatus can be downsized.

  As described above, the present invention can be widely used in apparatuses for handling paper sheets.

FIG. 3 is a configuration diagram illustrating a transport mechanism according to the first exemplary embodiment. 2 is an external view of a transport direction switching mechanism according to Embodiment 1. FIG. 3 is a configuration diagram of a transport direction switching mechanism according to Embodiment 1. FIG. FIG. 6 is a configuration diagram illustrating a transport mechanism according to a second embodiment. 6 is an external view of a transport direction switching mechanism according to Embodiment 2. FIG. FIG. 6 is a configuration diagram of a transport direction switching mechanism according to a second embodiment. It is an external view of the conventional conveyance direction switching mechanism. It is a block diagram of the conventional roller conveyance mechanism. It is a block diagram of the conventional belt conveyance mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st conveyance path 2 2nd conveyance path 3 Blade 4, 6, 8, 10, 12, 44 Feed roller 5, 7, 9, 11, 13, 21 Pressure roller 20 3rd conveyance path 22 Leaf spring 31 Conveying belt 32 Conveying belt 33 Conveying belts 34 to 39 Pulley

Claims (4)

A first transport path;
A second conveyance path that branches off from the first conveyance path;
A blade for switching the transport direction provided rotatably in the vicinity of the branch point;
A medium transport apparatus comprising transport means for sandwiching the medium and transporting the medium to the first transport path or the second transport path,
An auxiliary roller that abuts on the conveying means is provided coaxially with the shaft of the blade.   2. The medium processing apparatus according to claim 1, wherein the auxiliary roller is configured such that the rotation center portion of the roller is hollow and is arranged coaxially with the shaft of the blade, and can be pressed against the conveying means by a pressing member. .   3. The medium processing apparatus according to claim 1, wherein the transport unit is a feed roller capable of being rotationally driven and opposed to a pressure roller disposed in the vicinity of the branch point.   3. The medium processing apparatus according to claim 1, wherein the transport unit is a feed roller disposed near the branch point and coaxially with a pulley that can be driven to rotate by a transport belt. 4.

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