JPH04310798A - Sorter equipped with stapler - Google Patents

Abstract

PURPOSE:To staple sheets in a specific position by stabilizing a bin stop position by a method wherein when a bin reaches the stop position a cam follower stops the swing of an arm component by the contact of the cam follower with the equiradial cam surface of a cam plate. CONSTITUTION:A cam plate 75 integrated with a rotary shaft 74 is rotated by drive of a motor M3, and a follower shaft 78 transfers a transfer component 77 to go straight on. Besides, it moves a groove part 75A of the cam plate 75 outside to swing a first arm 71A and after getting out from the groove part 75A, it slides on a curved surface of a circular arc part 75B of equiradii. Prior thereto, a shielding plate part G8A at a tail part of a sector gear G8 shields an optical path of a photointerruptor PS2, and makes a power source off to stop a drive circuit of the motor M3. Therefore, though there is some overrun after stopping rotation of the motor M3, since the follower shaft 78 transfers along the equiradial circular arc part 75B of the cam plate 75 and stops, the first arm 71A and a second arm 71B keep stop positions at a specific angle, and a bin 41 stops in a specific position.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to a sorter attached to an image forming apparatus such as a copying machine, a printing machine, or a laser beam printer for sorting and storing sheets discharged from the image forming apparatus. The present invention relates to a sorter equipped with a stapler device that aligns and staples the sheets stored on the bins.

0002

2. Description of the Related Art Conventionally, a sheet post-processing device equipped with a stapler device for binding sheets discharged from a copying machine, etc. has been used together with a machine such as a circulating automatic document feeder (RDH), and a stapler device is used for each sheet. Although there is a sheet post-processing device (finisher) for stopping the sheet, it has the disadvantage that the mechanism is complicated and expensive.

(1) A device in which a stapler device is attached to a relatively simple bin moving type sorter (Japanese Patent Laid-Open No. 64-4345
Publication No. 7) has been disclosed. This device is a sorter in which a stapler device for binding sheets stored in bins is arranged so as to be movable forward and backward relative to the bins.

(2) In other sorters, when stapling a large number of paper stacks, a fixed stapler device is provided for each bin, and each bin is moved to the stapling position to staple the paper stacks. .

(3) The sorter disclosed in Japanese Unexamined Patent Publication No. 62-244869 moves a bin carrying sheets to a position where staples can be driven, staples are driven,
When other bottles are to be stapled, the stapler device is moved vertically.

[0006]

[Problems to be Solved by the Invention] Among the above-mentioned sorters with a stapler device, in the type in which the first stapler device advances and retreats, the advancing stroke differs depending on the size of the sheet, and if all the vertical intervals of each bin are wide, the sorter will not be able to move forward or backward. Larger,
There is a problem in that the mechanism becomes complicated if the stapler device only widens the interval between the bins into which it enters.

[0007] The second sorter has problems in that the overall configuration of the sorter is complicated, and when the bin spacing is narrow, a special stapler device is required.

[0008] In the third sorter, each bin loaded with sheets is moved straight along a bin guide and horizontally to a stapling position at appropriate times, and has the disadvantage that the structure of the apparatus is complicated.

[0009]

[Means for Solving the Problems] The present invention provides a stapler device that has a structure that stabilizes the bin stop position in a sorter equipped with a bin moving type stapler device and can staple sheets at a fixed position, and that ensures reliable operation. The purpose of the present invention is to provide a sorter equipped with the following functions.

[0010] A sorter equipped with a stapler device of the present invention that achieves this object has a bin rocking system in which a plurality of bins are individually rocked to move the sheets stacked on the bins to a fixed position where they can be stapled. a cam member which is fixed to a rotatable drive shaft and is rotatable and has a U-shaped groove cam surface and an equal radius cam surface; and the cam member. a cam follower that is movable in sliding contact with the cam surface of the cam follower; and an arm member that swings and rotates as the cam follower moves, and whose tip abuts the abutting surface of the bin to swing the bin; Due to the rotation of the shaft, the U-shaped groove cam surface of the cam member presses and moves the cam follower, thereby swinging the arm member and swinging the bin, and when the bin reaches a stop position,
The cam follower is characterized in that it comes into sliding contact with the equal radius cam surface of the cam member to stop the swinging of the arm member.

Further, the bin swinging device of the present invention includes a bin swinging device that swings the plurality of bins individually to move the sheets stacked on the bins to a fixed position where they can be stapled, The bottle swinging device is connected to a drive source, and includes a cam member that is fixed to a rotatable drive shaft, is rotatable, and has a pressing cam surface and a cam surface with the same radius, and swings by the swinging of the cam member. and an arm member that is rotated so that its tip abuts against the abutment surface of the bottle to swing the bottle, and as the drive shaft rotates, the pressing cam surface of the cam member presses and swings the arm member. When the bottle reaches a stopping position, the arm member slides into contact with the equal radius cam surface of the cam member, thereby stopping the swinging of the arm member. .

Furthermore, the stop position of the cam member is detected by an optical sensor, and the drive rotation of the drive source is stopped based on the detection signal.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a sorter connected to a main body 1 of an image forming apparatus (for example, a copying machine). The sorter of the present invention includes a base section 10, a downward conveyance section 20, and an upward conveyance section 30.
and a bin moving section 40.

The base section 10 is connected to the image forming apparatus main body 1 by a connecting means 12, and has casters 11A and legs 11.
It is installed on the floor by B. The downward conveyance section 20 and the upward conveyance section 30 are fixedly installed on the upper surface side of the base section 10, and the bin moving section 40 is movable in a direction perpendicular to the plane of the paper. Also,
Inside the base section 10, a conveyor belt 13 and a driven roller 14 are installed.
, a guide plate 15, a sheet conveyance drive means, and a bin moving unit drive means.

The base section (intermediate conveyance section) 10 has a
A stay member 16A is fixed in a direction perpendicular to the plane of the paper. A rack gear RG is fixed to the upper surface side of the stay member 16A.

In the housing of the bottle moving unit 40, rollers 17A and 17B for moving the housing are pivotally supported.
, 17B slide on the rails 16B of the base section 10, allowing the casing of the bottle moving section 40 to move in a direction perpendicular to the plane of the paper.

A drive motor M1 is installed inside the housing of the bin moving section 40, and drives and rotates the pinion gear PG via a worm gear G1 and a reduction gear train G2, G3, G4. The pinion gear PG is connected to the stay member 1.
Because it meshes with rack gear RG fixed to 6A,
Due to the drive rotation of the motor M1, the casing of the bin moving unit 40 moves in a direction perpendicular to the plane of the paper. Note that 18 is a rotatable roller provided coaxially with the pinion gear PG;
8 is in contact with and guides the stay member 16A.

Next, the downward conveyance unit 20 is connected to the paper discharge rollers 2 and the paper discharge port 3 of the image forming apparatus main body 1, receives the discharged sheet P with a guide plate 21, and conveys it downward. It consists of a conveyor belt 22 for feeding the feed to the conveyor belt 13 in the base section 10, a driven roller 23, and the like. Further, branching from this transport path, a transport means 24 and a tray 25 are provided for discharging the preceding sheet in the image forming apparatus main body 1 when a jam occurs in the ADF and the sorter.

FIG. 2 is a partial cross-sectional view of the upper and lower parts of the sorter.

In the upward conveyance section 30, several endless conveyor belts 31 are stretched between a drive pulley 32 at the lower part of the support frame and a driven pulley 33 at the upper part. A plurality of rollers 34 are rotatably connected to the inner side of the conveyor belt 31 and correspond to a bottle insertion opening, which will be described later. The roller 34
A plurality of conveyance rollers 35 roll in contact with the outer side of the conveyance belt 31 and are driven to rotate.

Further, in the middle of the conveyance roller 35, branch guides 36 are located at the entrances of the bins and swing. These branch guides 36 are integrated with a rotatable shaft 37 installed on the support frame, and are connected to a swing lever 38 and a solenoid SO provided at the end of the shaft 37.
It is swung by L. Therefore, by rotating the branching guide 36 clockwise, the lower end claw portion of the branching guide 36 intersects with the paper conveyance path composed of the conveyance belt 31 and the conveyance roller 35, and the paper is moved upward in the vertical direction. The branch guide 36 interrupts the advance and adjusts the paper receiving attitude. When the paper P is conveyed there, the paper P is deflected in a substantially perpendicular direction along the inner curved surface of the branching guide 36 and received into the bin 41 .

That is, the paper P (dotted chain line in the figure) carried into the ascending conveyance section 30 of the sorter at high speed is transferred to the conveyor belt 31.
is lifted up while being held by the conveying rollers 35, and is deflected to the right by the branching guide 36 which is actuated by a solenoid and swung clockwise (dotted chain line in the figure), so that the upright stopper wall 41S of the bin 41 is moved upward. After passing through the bin 41 and rising to the right along the inclined surface of the bin 41, and after the rear end of the paper P passes above the stopper wall 41S, the paper P changes from rising to descending, and due to its own weight, the paper P moves toward the bin 41. The rear end of the paper P hits the stopper wall 41S and stops.

FIG. 3 is a perspective view of the bin 41, and FIG. 4 is a plan view of the bin and the bin swinging device.

A plurality of bins (for example, 20 bins) 41 arranged at equal intervals are swingably supported on the bin moving unit 40. That is, the bottom of the bottle 41 (left side in FIGS. 2 and 4) is slidably supported on a guide plate 48 fixed to the bottle moving section 40.

A slide piece 44 is fitted into a fixed shaft 43 that stands upright and is supported by support members 42A and 42B fixed to the top and bottom of the frame of the bin moving unit 40, and is positioned by a pin 45. The slide piece 44 is fitted into a hole at one end of the bin 41 (upper right in FIGS. 2 and 4), making the bin 41 freely rotatable. Further, pins 45 driven into the fixed shaft 43 at equal intervals engage with the slide piece 44, and the pins 45
1 are arranged in parallel at equal intervals.

The other end of the bin 41 has a rotatable roller 39 embedded in a part of the frame of the bin moving unit 40.
is supported by In this way, the bottle 41 is supported by the guide plate 48, the slide piece 44, and the rollers 39.
It is freely swingable around a fixed shaft 43. In addition,
Reference numeral 41A indicates three claw portions provided on the bottom side that engage with the notches of the guide plate 48. Further, 41B is a rear stopper at five locations provided on the paper introduction side of the upper surface of the bin 41, and the upper end of the upright surface has a curved claw shape to prevent the paper from escaping from the paper bin due to the rear end of the paper rising up. It is for.

The sorter equipped with a stapler device has bin 4
In order to insert the sheets P to be loaded into the stapler device, all the bins 41 are moved forward and backward according to the sheet size by the motor M1 together with the bin moving section 40 as shown in FIGS. 1, 2, and 4. Each bin 41 is individually oscillated about a fixed shaft 43 by a bin oscillating device 70, which will be described later.

An alignment device 50 for aligning the side edges of the sheets P discharged from the image forming apparatus main body 1 onto the bin 41 is provided in a part of the fixed frame of the upward conveyance section 30. Figure 5
shows a front sectional view of the alignment device 50. FIG.

The alignment device 50 includes an upper arm 52A that is vertically supported at the upper and lower portions of the fixed frame, and is engaged with a rotating shaft 51 that rotates via a gear transmission system from the driving force of a pulse motor M2, so that the upper arm 52A can swing freely. The lower arm 52B is supported by the alignment bearing 53 of the vertical shaft of the alignment rod 54 and is caused to swing.

The elastic member coated on the outer periphery of the aligning rod 54 comes into light pressure contact with the side edge of the paper P discharged onto the bin and stored, and the paper P is pressed against the stopper wall 41D provided on the side surface of the bin 41. Press to align the width.

[0032] The upper arm 52A and the lower arm 52B
The swing angle is changed by the set number of pulses of the pulse motor M2 so that the width of the paper P is aligned in accordance with the size of the paper P to be discharged.

A paper pressing device 60 is attached to the outer surface of the stopper wall 41D. A lever 61 is swingably supported on a shaft 62 implanted on the outer surface of the stopper wall 41D. A paper pressing member 63 is provided at one end of the lever 61. The other end of the lever 61 is pressed by a roller 72 at the tip of an arm 71 of a bottle swinging device 70. This pressure causes the lever 61 to swing and press the top surface of the paper P on the bin 41 to hold the paper down.

FIG. 6 is a plan view of a unit incorporating a bin swinging device 70 for swinging the bin 41 and operating the paper pressing device 60, and an electric stapler device 80. FIG. 7 is a front sectional view of the bottle swinging device 70, and FIG. 8 is a sectional view taken along A-0-A.

The bottle swinging device 70 is attached to a substrate 73. A forward/reverse motor M3 fixed to the substrate 73 rotates a sector gear G8 and a rotating shaft 74 integral therewith clockwise in the drawing via a power transmission system of a worm gear G5 and intermediate gears G6 and G7. A fan-shaped shielding plate part (actuator part) G8A is integrally formed in a part of the sector-shaped gear G8, and a photointerrupter (transparent sensor) PS
1. Pass through PS2 and turn it on and off.

FIG. 9 is a plan view of the lower mechanism of the bottle swinging device 70, FIG. 10 is a sectional view taken along the line B-0-B of the bottle swinging device 70, and FIG. 11 is a sectional view taken along the line CC.

The rotating shaft 74 has a cam plate (cam member).
75 is fixed. The cam plate 75 consists of a U-shaped groove portion 75A and an arcuate portion 75B of equal radius. Also,
A first arm 71 is coaxially mounted on the rotating shaft 74 to be driven.
A is rotatably attached. the first arm 7
1A, a second arm 71B having an elongated hole is biased by a tension spring 79A and is slidable in the radial direction. At the tip of the second arm 71B is a roller 72 consisting of a fixed pin 72A, a rotatable ring 72B, and a rubber ring 72C covering the outer periphery of the ring 72B.
is rotatably attached.

On the other hand, a follower shaft 78 is implanted in a moving member 77 that can slide on a guide member 76 provided on a part of the base plate 73 and move in a straight line against the biasing force of a tension spring 79B.
It passes through the groove of the cam plate 75 and the long grooves of the first arm 71A and second arm 71B, and is biased by a spring.

The drive of the motor M3 rotates the cam plate 75 that is integral with the rotating shaft 74, and the groove 7 of the cam plate 75 rotates.
The side wall 5A causes the follower shaft 78 to move straight along the guide member 76 together with the moving member 77. At the same time, the follower shaft 78 causes the first arm 71A to rotate clockwise as indicated by the broken line in FIG. Therefore, the follower shaft 78 moves the movable member 77 in a straight line, moves the groove 75A of the cam plate 75 outward, swings the first arm 71A, and after exiting the groove 75A, the It slides on the curved surface of the circular arc portion 75B. Prior to this, the shielding plate G8A at the tail of the sector gear G8 blocks the optical path of the photointerrupter PS2, turns off the power, and stops the drive rotation of the motor M3. Therefore, even if there is an overrun after motor M3 stops rotating,
Since the follower shaft 78 moves on the circular arc portion 75B of the same radius of the cam plate 75 and stops, the first arm 71A and the second arm 71B maintain the stopping position at a predetermined angle, and the bin 4
1 stops at a predetermined position.

The arms 71A and 71B have a double structure and are normally extended by a tension spring 79A, but when the bottle 41 rotates, the rotation locus of the abutment surface of the bottle 41 and the rotation of the roller 72 The part where the trajectory intersects (Figure 6
When the arms 71A, 71B swing and reach the point (near point L), an excessive load is applied to the roller 72, but the movable second arm 71B swings in the fixed position of the first arm 71.
By moving relative to A, the tension spring 79A absorbs the load. Therefore, the roller 72 is in contact with the abutting portion 41E of the bin 41.
The bottle 41 is rocked and rotated about the fixed shaft 43 by smoothly swinging while being pressed against the bottle.

FIG. 12 shows the final forward movement position of the arms 71A and 71B, and the bin 41 is stapled at this swing end position.

The base plate 73 of the bin swinging device 70 is attached to a common frame 82 together with the base plate 81 of the stapler device 80, and is driven vertically on the frame of the bin moving unit 40 to rotate each bin. The stack of sheets stacked on the swinging bin 41 while being held down by the paper pressing member 63 enters the gap between the binding parts of the stapler device 80 and is stapled.

After driving the staple, the second arm 7
1B returns and swings, and the bin 41 is biased by the spring 59 and swings to return to the initial paper discharge position, and the paper presser member 63 is separated from the paper stack surface and the paper stack bin 41
It can be taken out from above.

When the stapling of the bundle of sheets stored in the uppermost bin 41 is completed, the unit which integrally forms the stapler device 80 and the bin swinging device 70 is lowered by the lifting device 90. Almost simultaneously, the bin 41 one step below is swung, and the stapling operation is performed in the same manner as described above. During this time, paper is being ejected to the bin 41 one or two steps below.

[0045] After stapling all the paper bundles is completed, the unit that integrates the bin swinging device and the stapler device returns to the topmost bin position.

Next, other embodiments of the bottle swinging device according to the present invention are shown in FIGS. 13 to 16.

FIG. 13(A) is a plan view of the bottle swinging device 700, and FIG. 13(B) is a cross-sectional view of the device 700 taken along A-B-C-D.

[0048] The substrate (frame) 701 of the bottle swinging device includes:
Motor M4, intermediate shaft 702, support shaft 703, and photointerrupter PS3 are fixed. Further, the frame body 70
The drive shaft 705 is attached to the bearings 704 provided in the upper and middle stages of 1.
is fitted and can rotate freely. Worm gear G10 fixed to the main shaft of DC motor M4 rotates gear G12 fixed to drive shaft 705 in the illustrated direction via intermediate gears G11A and G11B rotatably fitted to intermediate shaft 702.

A fan-shaped blocking member 706 is fixed to the middle part of the drive shaft 705, and a cam member 707 is fixed to the lower end of the drive shaft 705. A cam protrusion 707A, which will be described later, is integrally formed on the lower surface side of the cam member 707.

FIG. 14(A) shows the first arm 708 and the second arm 708.
A plan view showing a partially assembled state of the arm 710 of FIG. 14 (
B) is a front sectional view thereof.

[0051] A support shaft 703 provided at the bottom of the substrate 701
The first arm 708 is fixed to and biased by a torsion spring 709. the first arm 70
The boss portion 708A protruding from the left end of No. 8 in the figure includes the second
The second arm 710 is fitted into a hole in the middle of the arm 710 and is rotatable, and the second arm 710 is swingable about the boss portion 708A relative to the first arm 708.

A fixing pin 72A is installed at the left end of the second arm 710 in the figure, and around it is a roller 72 consisting of a rotatable ring 72B and a rubber ring 72C covering the outer periphery of the ring 72B. is rotatably attached.

The right end of the second arm 710 as shown in the figure has a widened part shaped like a battledore, and a penetrating groove 710A is bored in the rightmost end of the second arm 710, so that when the second arm 710 swings, the support It has an escape groove that prevents it from coming into contact with the shaft 703. In addition, the first arm 708 and the second arm 710
Recesses 708B and 710B are formed in the intermediate portion of each arm, and a torsion spring 711 is fitted into and biased by the spring.

FIG. 15 is a plan view showing the shape of the bottle swinging device 700 when it is started. In this state, the first arm 708 supported by the support shaft 703 is biased counterclockwise by the torsion spring 709 and stopped by the stopper pin 712. Further, the second arm 710, which is pivotally supported by the boss portion 708A of the first arm 708, is biased counterclockwise by a torsion spring 711,
It is pressed against the end wall surface of 0A and stopped.

When the motor M4 is driven from this state, the gear train transmission systems G10, G11A, G11B, G1
2, the drive shaft 705 and the cam member 707 start rotating forward, and the tip 707B of the cam protrusion 707A presses the side wall of the first arm 708.
oscillate clockwise as shown. At the same time, the first arm 708
The second arm connected via a torsion spring 711 swings clockwise together, and the roller 72 at its tip presses the abutment surface of the bottle 41, causing the movement described in the first embodiment. As shown above, the bin 41 is swung to the stapling position.

FIG. 16 is a plan view of the vicinity of the end position of swinging by the bottle swinging device 700. When the swinging motion of the first arm 708 and the second arm 710 by the drive source reaches the end position, the shielding member 7 integral with the drive shaft 705
06 interrupts the optical path of the photointerrupter PS3 and stops driving the motor M4 based on the detection signal. However, due to inertia, the drive shaft 705 continues to rotate a little further and then stops. During the inertial rotation of the drive shaft 705, the equal radius arc portion 707 of the cam protrusion 707A of the cam member 707
C comes to press the side wall of the first arm 708. Due to this sliding rotation of the equal radius portion 707C, the swinging of the first arm 708 about the support shaft 703 is stopped, and the roller 72 at the tip of the second arm 710 moves the bin 4
1 is stopped. At this bin stop position, the bin 41
The stapler device 80 staples the upper stack of sheets.

The arms 708 and 710 have a double structure, and are urged by a torsion spring 711 and normally swing together, but when the bin 41 rotates, the abutment surface of the bin 41 rotates. Arms 708 and 71 are installed at the intersection of the locus and the rotation locus of the roller 72 (near point L in FIG. 6).
0, an excessive load is applied to the roller 72, but the movable second arm 710 swings around the boss portion 708A of the first arm 708, and the torsion spring 711 Absorb the load (Figure 14(A)
(dashed line position). Therefore, the roller 72 smoothly swings while being in pressure contact with the abutting portion 41E of the bin 41, and swings and rotates the bin 41 around the fixed shaft 43, passing through point L and reaching the final position.

When the staple is driven into the final position of the swing rotation of the bin 41, the detection signal causes the motor M4 to
starts rotating in the opposite direction, and cooperates with the biasing force of the torsion springs 709, 711 to return the arms 708, 710 to their initial positions.

[0059]

[Effects of the Invention] As explained above, according to the present invention,
In a sorter equipped with a bin-moving stapler device,
The final stop position of the bin movement, that is, the stop position for stapling, is stabilized, and the staple can always be driven into the fixed position of the sheet for binding, despite the overrun of the arm by the driving means.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of a sorter connected to an image forming apparatus main body.

FIG. 2 is a partial cross-sectional view of the upper and lower parts of the sorter.

FIG. 3 is a perspective view of the bottle.

FIG. 4 is a plan view of the bottle and the bottle swinging device.

FIG. 5 is a front sectional view of the alignment device.

FIG. 6 is a plan view of the bottle swinging device.

FIG. 7 is a front sectional view of the bottle swinging device.

FIG. 8 is a sectional view taken along A0-A of the bottle swinging device.

FIG. 9 is a plan view of the lower mechanism of the bottle swinging device.

FIG. 10 is a sectional view taken along B-0-B of the bottle swinging device.

FIG. 11 is a cross-sectional view taken along line CC of the bottle swinging device.

FIG. 12 is a plan view of the bin swinging device in the stapling position.

[Fig. 13] Fig. 13 is a plan view of the bottle swinging device and A-B.
-C-D sectional view.

FIG. 14 is a plan view and a front sectional view showing the relative relationship between the first arm and the second arm.

FIG. 15 is a plan view of the bottle swinging device when the arm starts swinging.

FIG. 16 is a plan view of the bin swinging device at the end of arm swinging.

[Explanation of symbols]

1... Image forming apparatus main body (copying machine main body) 10... Base section 20... Downward conveyance section
30... Upward conveyance section 40... Bin moving section
41...bin 43
…Fixed axis
44...Slide piece 50...Alignment device
54...Aligning rod 60...Paper pressing device
61...Lever 63...Paper pressing member
70,700...Bin rocking device 702...Intermediate shaft
703... Support shaft 705... Drive shaft
706...Shielding member 707...Cam member
707A...Cam projection part 708A...Boss part
709, 711...Torsion spring 712...Stopper pin
71A, 708...first arm 71B, 710...second arm
72...Roller 73, 701...Substrate (frame body)
74... Rotating shaft 75... Cam plate
75A...Groove portion 75B...Circular arc portion
76...Guide member 77...Moving member
78...Follower shafts 79A, 79B...Tension springs
80... Stapler device 82... Frame body
90... Lifting device P... Paper (sheet)
M3, M4...Forward/reverse motor

Claims (3)

[Claims] 1. A sorter comprising a plurality of bins for sorting and storing sheets carried out from an image forming apparatus main body, and a stapler device for stapling the sheets stored in the bins, wherein the plurality of bins are individually separated. A bin rocking device is provided that swings the sheets stacked on the bin to a fixed position where they can be bound, and the bin rocking device is fixed to a drive shaft that is connected to a drive source and can be driven and rotated. a cam member which is rotatable and has a U-shaped groove cam surface and an equal radius cam surface;
The cam follower is movable in sliding contact with the cam surface of the cam member, and the arm member is oscillated and rotated by the movement of the cam follower, and its tip abuts against the abutting surface of the bin to swing the bin. , when the rotation of the drive shaft causes the U-shaped groove cam surface of the cam member to press against and move the cam follower, thereby swinging the arm member and swinging the bin, and when the bin reaches a stop position; . A sorter equipped with a stapler device, wherein the cam follower comes into sliding contact with an equal radius cam surface of the cam member to stop swinging of the arm member. 2. A sorter comprising a plurality of bins for sorting and storing sheets carried out from an image forming apparatus main body, and a stapler device for stapling the sheets stored in the bins, wherein the plurality of bins are individually separated. A bin rocking device is provided that swings the sheets stacked on the bin to a fixed position where they can be bound, and the bin rocking device is fixed to a drive shaft that is connected to a drive source and can be driven and rotated. a cam member which is rotatable and has a cam surface having the same radius as a pressing cam surface; and the cam member is oscillated and rotated by the oscillation of the cam member, and the tip portion comes into contact with the abutting surface of the bottle to oscillate the bottle. When the drive shaft rotates, the pressing cam surface of the cam member presses and swings the arm member to swing the bottle, and when the bottle reaches the stop position, the arm A sorter equipped with a stapler device, characterized in that a member slides on a uniform radius cam surface of the cam member to stop swinging of the arm member. 3. The stapler apparatus according to claim 1, wherein the stop position of the cam member is detected by an optical sensor, and the drive rotation of the drive source is stopped based on the detection signal. equipped sorter.