JP3295579B2 - Media processing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medium processing apparatus which opens and closes a shutter provided inside an insertion / ejection port and sucks and discharges a medium to be processed.

[0002]

2. Description of the Related Art FIG. 3 is an explanatory diagram showing the configuration of a medium processing apparatus that carries out processing by transporting a medium. When the operator inserts the medium P into the insertion / ejection port 10, the detector 11 detects the front end of the medium P. The control means not shown is a detector 11
The shutter 12 provided inside the insertion / ejection port 10 is opened by a shutter opening / closing mechanism described later on the basis of the detection signal.

When the operator further inserts the medium P into the insertion / ejection opening 10 in response to the opening of the shutter 12, the medium P is transported by a plurality of transport rollers 13 which are disposed vertically above and below the transport path L. It is taken in and transported.

At this time, in order to prevent another medium, foreign matter, or the like from being inserted into the opened insertion / ejection port 10 and malfunctioning, the control means takes in the medium P and then controls the shutter by the shutter opening / closing mechanism. 12 is closed.

The transport roller 13 rotating in the forward and reverse directions transports the medium P back and forth in the directions indicated by arrows F and R. In the process in which the medium P is transported along the transport path L by the transport rollers, predetermined processing operations, for example, a reading operation and a writing operation by the magnetic head 14, a barcode reading operation by the optical reading sensor 15, and a printing head 16 The printing operation and the page turning operation of the medium P by the turning unit 17 are performed. In addition, 16a is a platen.

[0006] When the processing operation for the medium P is completed, the shutter 12 is opened by a shutter opening / closing mechanism. The medium P is transported in the direction of arrow R by the transport rollers 13 and is discharged outward from the insertion / ejection port 10 in the open state.

FIG. 4 is an explanatory view showing the above-mentioned shutter opening / closing mechanism, and shows a state where the insertion / ejection port 10 is viewed from the front. The plunger 21 of the solenoid 20 is connected to one end of a link 22 whose longitudinal direction extends horizontally. The link 22 has two inverted L-shaped arms 25 and 26 rotatably supported by fulcrums 23 and 24.
Are connected at one end.

The other end of each of the arms 25 and 26 is connected to an extended portion above the shutter 12. The shutter 12 is always urged in a direction (downward on the paper) to close the insertion / ejection port 10 by an urging member 27 such as a coil spring stretched between the shutter 12 and the housing.

Accordingly, when the solenoid 20 is energized and the plunger 21 is sucked, the link 22 moves rightward on the paper surface, so that the arms 25 and 26 are supported
, The shutter 12 is moved in the direction of opening the insertion / ejection opening 10 (upward on the paper) against the urging force of the urging member 27.

On the other hand, when the energization of the solenoid 20 is stopped, the shutter 12 is closed by the urging force of the urging member 27 in the direction of closing the insertion / ejection port 10 (downward in the paper plane), as shown by the two-dot chain line in the figure. ). At this time, the arms 25 and 26 rotate counterclockwise.

[0011]

By the way, in the above-described conventional medium processing apparatus, when the solenoid 20 fails and the plunger 21 cannot be sucked, the shutter 12 remains closed and cannot be opened. In addition, there is a problem that the medium P cannot be discharged from the insertion / ejection port 10. The present invention has been made to solve such a problem, and its purpose is to forcibly open the shutter and insert the medium from the insertion / ejection port even when the opening / closing operation of the shutter becomes impossible. An object of the present invention is to provide a medium processing device capable of discharging.

[0012]

SUMMARY OF THE INVENTION According to the present invention, there is provided a medium processing apparatus for suctioning and discharging a medium to be processed by opening and closing a shutter provided in the vicinity of an insertion / ejection port, wherein a cam groove extending in a moving direction is formed. A cam having an open portion and a closed portion which are different from each other in a direction perpendicular to the moving direction at an edge of the cam groove; a cam moving means for linearly reciprocating the cam; and a moving direction of the cam. And a driven member provided at one end with a roller fitted in the cam groove, and a constant force urging the driven member in a direction in which it contacts the edge of the cam groove. Biasing means, and an arm rotatably supported at a fulcrum, one end of which is pivotally attached to the driven body and the other end of which is fixed to the shutter. Opening of the edge The shutter is opened and closed by moving to the position of the closed position and the position of the closed portion, and the cam groove is provided when the driven member is positioned at the closed position in the moving direction of the cam. The present invention is characterized in that the body has a shape capable of moving to a position corresponding to the opening portion in a direction perpendicular to the moving direction of the cam.

[0013]

When the cam is moved by the cam moving means, the follower follows the edge of the cam groove. The arm connected to the follower opens and closes the shutter by moving the follower to a position corresponding to the open portion and the closed portion of the edge. When a force is applied to the shutter in a direction in which the shutter is opened while the shutter is closed, the arm and the driven body connected to the arm are moved against the urging force of the urging means. At this time, the shutter can be forcibly opened because the follower has a shape capable of moving to a position corresponding to the closed portion in a direction perpendicular to the moving direction of the cam.

[0014]

Next, the present invention will be described with reference to the drawings. FIGS. 1A and 1B are explanatory views of an opening and closing operation of a shutter showing one embodiment of a medium processing apparatus of the present invention.
Indicates a closed state and an open state of the shutter, respectively. FIGS. 2A and 2B are explanatory diagrams of the forcible opening operation of the shutter in the embodiment, and FIGS. 2A and 2B show a closed state and an opened state of the shutter, respectively. 1 and 2, the same or corresponding members as those in FIG. 3 showing the conventional example are denoted by the same reference numerals, and description thereof will be omitted.

First, the configuration will be described with reference to FIG. 1A and 1B, the cam 30 is formed with a spiral cam groove 31 having a radial distance set in accordance with the rotation angle. The cam 30 is connected to a rotating shaft 32a of a motor 32 that can rotate forward and backward by a required angle.

A link lever 33 having an inverted L-shape is rotatably supported at a bent portion by a fulcrum 34 fixed to the housing, and has one end located inside the cam groove 31 to be driven. A driven roller 35 is provided, and the other end is connected to another cam 36 formed in a plate shape.
The motor 32 for moving the cam 36, the cam 30, and the link lever 33 constitute a cam moving means M.

The cam 36 is provided with a guide groove 37 extending in the moving direction (the left-right direction in the drawing), and guide pins 38a and 38b are inserted into the guide groove 37.
Therefore, the cam 36 is connected to the guide pins 38a, 38b.
The guide member is guided so as to be able to reciprocate linearly in the moving direction.

A driven roller 41 provided at the lower end of a strip-shaped driven member 40 is inserted through a cam groove 39 formed in the cam 36. An edge 39a having a predetermined shape is formed above the cam groove 39, and a linear edge 39b is formed below the cam groove 39. The edge 39a has a high portion (open portion) HP and a low portion (closed portion) L
P is formed. Both parts are connected by an inclined part.

Further, even if the driven roller 41 is located at a position corresponding to the high part HP in the moving direction of the cam 36, the driven roller 41 can move downward to a position corresponding to the low part LP in a direction perpendicular to the moving direction. The cam groove 39 of the cam 36
Are formed. That is, the edge 39a and the edge 39b
Is formed.

The driven body 40 has a vertically long hole 42 formed in the center thereof, and a guide pin 43 fixed to the housing side is inserted into the vertically long hole 42. Therefore, the driven body 40 is guided by the guide pin 43 so as to be able to linearly reciprocate in a direction perpendicular to the moving direction of the cam 36 (vertical direction in the drawing).

The urging member 44, which is stretched between the upper end of the follower 40 and the housing, is always urged upward.
That is, the driven body 40 is moved by the urging member 43.
The driven roller 41 is constantly urged in a direction in which it comes into contact with the upper edge portion 39 a of the cam groove 39.

One end of an arm 45 is connected to the upper end of the driven body 40, and the center of the arm 45 is rotatably supported by a fulcrum 46 fixed to the housing.
The shutter 12A is connected to the other end of the arm 45.

Next, the opening and closing operation of the shutter with the above configuration will be described. First, in the closed state shown in FIG. 1A, the driven roller 41 of the driven body 40
9a is in contact with the high site HP. At this time, arm 4
5 is held in a substantially horizontal state, so that the shutter 12A is held in a closed state.

Here, when the rotating shaft 32a of the motor 32 rotates and the cam 30 rotates clockwise, the link lever 33 swings clockwise about the fulcrum 34.
Thereby, as shown in FIG. 1B, when the cam 36 moves to the left in the drawing, the driven roller 41 of the driven body 40 slides from the high portion HP of the edge 39a of the cam groove 39 to the low portion LP. While being moved. As a result, since the follower 40 moves downward, the arm 45 rotates counterclockwise about the fulcrum 46. As a result, shutter 1
2A is opened.

That is, as described above, when the cam 30 is rotated clockwise, the shutter 12A is opened. Therefore, if the cam 30 is rotated counterclockwise,
The shutter 12A is closed.

Next, the operation for forcibly discharging the medium P from the introduction / discharge port 10 will be described with reference to FIG. As shown in FIG. 2A, when the rotation of the motor 32 is stopped due to a failure or the like while the shutter 12A is closed, the medium P is discharged by a transport roller (not shown). Forcibly transported toward R. As a result, the end of the medium P is
A is pressed in the discharge direction R from inside.

At this time, the cam groove 39 of the cam 36 is formed so that the driven roller 41 of the driven member 40 can move downward to a position corresponding to the low portion LP. Is not blocked. Therefore, the shutter 12A is opened by being pressed by the medium P. That is, as shown in FIG.
The arm 45 is rotated counterclockwise about the fulcrum 46, and the follower 40 is moved downward against the urging force of the urging member 44. Then, the medium P is discharged from the opened shutter 12A toward the insertion discharge port 10.

As described above, according to the present embodiment, the shutter 12A can be opened and the medium P can be forcibly ejected even when the rotation of the motor 32 is stopped.

When the cam 36 is located at the high position HP (closed position) in the direction of movement of the cam 36, the follower 36 is positioned at the low position LP (open position) in the direction perpendicular to the direction of movement of the cam. It suffices if it has a shape that can move to the position corresponding to ()). Therefore, the cam groove 39 may be formed in a cutout shape without the lower edge 39b.

In this embodiment, the edge 3 of the cam groove 39
9a, one closed part and one open part are provided.
The number and arrangement of the closed part and the open part in 9a are arbitrary. The rotation angle and rotation direction of the cam 30 of the cam moving means M may be controlled in accordance with the number and arrangement of the two portions provided on the edge portion 39a.

[0031]

As described above in detail, according to the medium processing apparatus of the present invention, when the shutter is closed and a force is applied to the shutter in a direction to open the arm, the arm and the arm are connected. The driven body thus moved is moved against the urging force of the urging means. At this time, the shutter can be forcibly opened because the follower has a shape capable of moving to a position corresponding to the closed portion in a direction perpendicular to the moving direction of the cam. Therefore, even when the opening and closing operation of the shutter becomes impossible, the shutter can be forcibly opened and the medium can be ejected from the insertion / ejection port.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an opening and closing operation of a shutter showing one embodiment of a medium processing apparatus of the present invention.

FIG. 2 is an explanatory diagram of a forcible opening operation of a shutter in the embodiment.

FIG. 3 is an explanatory diagram showing a configuration of a conventional device.

FIG. 4 is an explanatory view showing a shutter opening / closing mechanism of a conventional device.

[Explanation of symbols]

 12A Shutter 36 Cam 39 Cam groove 39a Edge HP Upper part (closed part) LP Low part (open part) M Cam moving means 30 Cam 32 Motor 33 Link lever 40 Follower 44 Biasing means 45 Arm

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B65H 11/00-11/20 B65H 1/00-3/68 G06K 13/06

Claims (1)

(57) [Claims] In a medium processing apparatus for opening and closing a shutter provided in the vicinity of an insertion / ejection opening to suck and discharge a medium to be processed, a cam groove extending in a moving direction is formed, and a cam groove extending in a moving direction is formed. A cam having an open portion and a closed portion having different positions in a direction perpendicular to the moving direction on an edge portion; a cam moving means for linearly reciprocating the cam; A driven member having at one end a roller fitted into the cam groove; a biasing means for constantly biasing the driven member in a direction in which the driven member comes into contact with the edge of the cam groove; An arm fixed at one end to the driven body, and the other end fixed to the shutter, the driven body having an open portion at an edge of the cam groove; Closed site The cam groove opens and closes the movable member when the driven member is located at the closed portion in the moving direction of the cam. A medium processing apparatus having a shape that can move to a position corresponding to the open area in a direction perpendicular to the direction.