JPH0912183A - Medium processor - Google Patents

Abstract

PURPOSE: To provide a medium processor capable of discharging a medium by forcibly opening a shutter. CONSTITUTION: When an opening direction force is applied to a closed shutter 12A by the end part of a medium P, an arm 45 and a follower 40 connected to this are moved against the pressing force of a pressing means 44. Since a cam groove 39 has a shape for moving the follower 40 to a position corresponding to an opening position LP when the follower 40 is positioned in a closed position HP, the medium P is discharged by forcibly opening the shutter 12A.

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 for sucking and discharging a medium to be processed by opening and closing a shutter provided inside an insertion / exhaust port.

[0002]

2. Description of the Related Art FIG. 3 is an explanatory diagram showing the structure of a medium processing apparatus that conveys a medium to perform processing. 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 the 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 port 10 in response to the opening of the shutter 12, the medium P is conveyed by a plurality of conveying rollers 13 which are vertically arranged so as to sandwich the conveying 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 uses the shutter opening / closing mechanism to release the shutter. Close 12

The transport roller 13 which rotates in the forward and reverse directions reciprocally transports the medium P in arrow directions F and R. The medium P is subjected to predetermined processing operations, for example, a reading operation and a writing operation by the magnetic head 14, a bar code reading operation by the optical reading sensor 15, and a printing head 16 in the process of being conveyed on the conveyance path L by the conveyance roller. The printing operation and the page turning operation of the medium P by the turning unit 17 are performed. 16a is a platen.

When the processing operation on the medium P is completed, the shutter 12 is opened by the shutter opening / closing mechanism. The medium P is conveyed in the direction of arrow R by the conveying roller 13 and is ejected outward from the insertion and ejection port 10 in the open state.

FIG. 4 is an explanatory view showing the shutter opening / closing mechanism described above, showing a state in which 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 that extends horizontally in the longitudinal direction. The link 22 has two arms 25 and 26 each having an inverted L-shape and rotatably supported by fulcrums 23 and 24.
One end of is connected.

The other ends of the arms 25 and 26 are connected to the extending portions above the shutter 12, respectively. The shutter 12 is always urged in a direction of closing the insertion / ejection port 10 (downward in the drawing) by an urging member 27 such as a coil spring stretched between the shutter 12 and the housing.

Therefore, when the solenoid 20 is energized and the plunger 21 is attracted, the link 22 moves rightward on the paper surface, so that the arms 25 and 26 are fulcrum points 23 and 24.
By rotating the shutter 12 in the clockwise direction about, the shutter 12 is moved against the urging force of the urging member 27 in the direction of opening the insertion / ejection port 10 (upward in the drawing).

On the other hand, when the solenoid 20 is de-energized, the urging force of the urging member 27 causes the shutter 12 to close the insertion / ejection port 10 as shown by the chain double-dashed line in FIG. ) Is moved to. 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 suction of the plunger 21 becomes impossible, the shutter 12 remains closed and is not opened. However, there is a problem that it becomes impossible to eject the medium P from the insertion / ejection port 10. The present invention has been made to solve such a problem, and an object thereof is to forcibly open the shutter to insert a medium from the insertion / ejection port even when the opening / closing operation of the shutter becomes impossible. An object is to provide a medium processing device that can discharge the medium.

[0012]

SUMMARY OF THE INVENTION According to the present invention, in a medium processing apparatus for opening and closing a shutter provided inside the vicinity of an insertion / ejection port to suck and eject a medium to be processed, a cam groove extending in a moving direction is formed. And a cam in which an opening portion and a closing portion whose positions in the direction perpendicular to the moving direction are different from each other are formed at the edge of the cam groove, a cam moving means for linearly reciprocating the cam, and a moving direction of the cam. And a follower having one end fitted with a roller fitted in the cam groove, and constantly urged the follower in a direction in which the follower contacts the edge of the cam groove. And an arm fixed to the driven body at one end and rotatably supported at a fulcrum and fixed at the other end to the shutter. The opening of the edge The shutter is opened / closed by moving to the position of the closed position and the position of the closed portion, and the cam groove is configured to move the driven member when the driven member is positioned at the closed position in the moving direction of the cam. It is characterized in that the body has a shape capable of moving to a position corresponding to the open portion in a direction perpendicular to the moving direction of the cam.

[0013]

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

[0014]

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

First, the configuration will be described with reference to FIG. In FIGS. 1A and 1B, the cam 30 is provided with a spiral cam groove 31 having a radial distance set corresponding to the rotation angle thereof. A rotation shaft 32a of a motor 32 capable of rotating in a desired angle forward and backward is coupled to the cam 30.

The inverted L-shaped link lever 33 is rotatably supported by a fulcrum 34 fixed to the housing at its bent portion, and has one end positioned inside the cam groove 31 and driven. The driven roller 35 is provided, and the other end is linked 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 (left and right direction of the paper surface), and guide pins 38a and 38b are inserted into the guide groove 37.
Therefore, the cam 36 has the guide pins 38a, 38b.
Is guided so as to be linearly reciprocating in the above moving direction.

In the cam groove 39 formed in the cam 36, a driven roller 41 provided at the lower end of a strip-shaped driven body 40 is inserted. An edge portion 39a having a predetermined shape is formed on the upper side of the cam groove 39, and a linear edge portion 39b is formed on the lower side of the cam groove 39. A high portion (open portion) HP and a low portion (closed portion) L are provided on the edge portion 39a.
P is formed. Both parts are continuous by the inclined part.

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

The driven body 40 has a vertically elongated hole 42 formed in the center thereof, and a guide pin 43 fixed to the housing is inserted into the vertically elongated hole 42. Therefore, the driven body 40 is guided by the guide pin 43 so as to be linearly reciprocally movable in the direction perpendicular to the moving direction of the cam 36 (vertical direction on the paper surface).

An urging member 44 stretched between the upper end of the driven body 40 and the casing constantly urges the upward direction.
That is, the driven body 40 is
The driven roller 41 is constantly urged in a direction to come into contact with the upper edge portion 39a 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 side.
The shutter 12A is connected to the other end of the arm 45.

Next, the opening / closing operation of the shutter having the above structure will be described. First, in the closed state shown in FIG. 1A, the driven roller 41 of the driven body 40 causes the driven roller 41 to move to the edge portion 3 of the cam groove 39.
It is in contact with the high portion HP of 9a. At this time, arm 4
Since 5 is held in a substantially horizontal state, the shutter 12A is held in a closed state.

When the rotating shaft 32a of the motor 32 rotates and the cam 30 rotates clockwise, the link lever 33 is swung clockwise around the fulcrum 34.
As a result, 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 portion 39a of the cam groove 39 to the low portion LP. While being moved. As a result, the driven body 40 moves downward, so that 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, with reference to FIG. 2, the operation for forcibly ejecting the medium P from the introduction / ejection port 10 will be described. As shown in FIG. 2A, when the rotation of the motor 32 is stopped due to a failure or the like in a state where the shutter 12A is closed, the medium P is discharged in a discharge direction by a transport roller (not shown). Forcibly convey to R. As a result, the edge of the medium P is not covered by the shutter 12.
It comes into contact with A and presses it in the discharge direction R from the inside.

At this time, since the cam groove 39 of the cam 36 is formed so that the driven roller 41 of the driven body 40 can move downward to a position corresponding to the low portion LP, the driven groove 40 moves downward. The movement of 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 driven body 40 is moved downward against the urging force of the urging member 44. Then, the medium P is ejected toward the insertion / ejection port 10 from the opened shutter 12A.

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

The cam groove 39 is such that when the cam 36 is located at the high position HP (closed position) in the moving direction, the driven member 36 is at the low position LP (open position) in the direction perpendicular to the moving direction of the cam. ), As long as it has a shape capable of moving to a position corresponding to. Therefore, the cam groove 39 may be formed in a notch shape without the lower edge portion 39b.

In this embodiment, the edge portion 3 of the cam groove 39 is
Although one closed portion and one open portion are provided on 9a, the edge 3
The number and arrangement of the closed site and the open site in 9a are arbitrary. Further, the rotation angle and the rotation direction of the cam 30 of the cam moving means M may be controlled according to the number and arrangement of the both parts 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 in the direction of opening the shutter is applied, the arm and the arm are connected. The driven body thus moved is moved against the biasing force of the biasing means. At this time, since the follower has a shape capable of moving to the position corresponding to the closed portion in the direction perpendicular to the moving direction of the cam, the shutter can be forcibly opened. Therefore, even when the opening / closing operation of the shutter becomes impossible, the shutter can be forcibly opened to eject the medium from the insertion / ejection port.

[Brief description of the drawings]

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

FIG. 2 is an explanatory diagram of a forced 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

Claims (1)

[Claims] 1. A medium processing device for opening and closing a shutter provided inside an insertion / exhaust port to suck and discharge a medium to be processed, wherein a cam groove extending in a moving direction is formed, and the cam groove is formed. A cam having an opening portion and a closing portion formed at the edge portion, the opening portion and the closing portion having different positions in the direction perpendicular to the moving direction, a cam moving means for linearly reciprocating the cam, and a movably supported in a direction perpendicular to the moving direction of the cam. And a driven body having a roller fitted in the cam groove at one end, and a biasing means for constantly biasing the driven body in a direction in which the driven body contacts the edge portion of the cam groove. An arm that is rotatably supported, has one end pivotally attached to the driven body and the other end fixed to the shutter, and the driven body has an opening portion of the edge portion of the cam groove and the arm. Closed site The shutter is opened and closed by moving the driven body to the stationary position. A medium processing device having a shape capable of moving to a position corresponding to the open portion in a direction perpendicular to the direction.