JP6462071B2 - Sheet storage device - Google Patents

Description

  The present invention relates to an apparatus for storing sheets sequentially discharged from a sheet handling device and stacking them to form a stack, and in particular, aligning the side end surfaces of the stack while stacking and automatically unloading the stack after stacking. It is related with the apparatus which performs.

  A collating device that stacks a bundle of advertisements to be delivered as a bundle for each type of advertisement on a plurality of paper feed units, takes out one by one and superimposes them into a bundle of delivery units is a newspaper Used at dealers. This collating apparatus stacks a plurality of completed advertisement bundles in a storage unit to form a stack (hereinafter referred to as a “stack”). The advertisements supplied from each paper supply unit are provided in the vertical direction. Therefore, the accumulating section is provided near the lowest floor surface of the apparatus. Therefore, when taking out the stack, it is necessary to bend and lift, which is a heavy burden on the operator. For this reason, in order to make it easy for an operator to take out the stack of the storage unit, an apparatus that carries out the lift by an elevator while being carried out by a conveyor is widely used (for example, Patent Document 1).

JP 2011-126659 A (paragraphs [0029], [0030], [0031], FIG. 1)

This lift-up device makes it easy to take out the stack, but since the taken-out stack is a stack of the bundles coming out of the collating device, the side edges between the bundles are sufficiently aligned. In addition, it was necessary to prepare manually before delivery.
The present invention has been made in view of such problems, and an object of the present invention is to provide a sheet storage device that does not require stacking work after taking out.

  In one aspect of the present invention for solving the above-described problems, sheets sequentially discharged from a sheet discharge outlet are stacked and stored, and a storage section that forms a stack, and a bottom portion of the storage section is formed on a transport surface, and is formed thereon. A carry-out belt for carrying out the stacked stack from the accumulator, an aligning portion parallel to the stacking direction of the stack, a contact position where the aligning portion comes into contact with a side end of the stack, and a distance from the side end of the stack The jogger provided so that it can reciprocate between the retracted position and the contact position of the jogger alignment part can be adjusted in a direction perpendicular to the stack side end beyond the end of the transport surface of the carry-out belt. And a support surface extending from the lower end of the aligning portion of the jogger over the end of the conveying surface of the carry-out belt in a direction perpendicular to the stack side end and having a width in the side end direction of the stack A support member with It is a sheet accommodating apparatus according to claim.

According to this aspect, since the jogger can be brought into contact with the side edge of the stack to align the side edges of the stack, the alignment work after the stack is taken out by the operator can be made unnecessary. Also, since the jogger side of the bottom of the stack is supported by the support surface beyond the end of the belt, the belt and jogger interfere regardless of the positional relationship between the side end of the stack and the end of the belt. The jogger can be operated without having to For this reason, it becomes possible to arrange stacks of various sizes.
A plurality of support members may be provided at intervals with respect to one side end of the stack. According to this aspect, the bottom surface of the stack can be supported more stably.
At least a part of the lower end of the jogger aligning portion may extend below the support surface of the support member, and the lower end of the extended portion may be higher than the transport surface of the carry-out belt. According to this aspect, even a thin sheet can be surely aligned from the lowest sheet in the stack.
The aligning portion is a flat surface parallel to the side end surface of the abutting stack, and an anti-slip surface may be formed on the flat surface. According to this aspect, even when the vicinity of the side edge of the stack is lifted by the support member and the end portion is inclined so as to face upward, buckling when the jogger comes into contact can be prevented, and appropriate alignment can be performed. it can.

  According to the present invention, in the sheet storage device that stores and sequentially stacks sheets discharged sequentially from the sheet handling device, it is possible to eliminate the need for stack alignment work after removal.

It is an external appearance structure perspective view of a collation device to which the sheet storage device of the present invention is applied. It is a front view of the collation apparatus to which the sheet storage apparatus of the present invention is applied. FIG. It is a top view of an accommodating part. It is the perspective view which removed the front-end | tip guide and the opening / closing guide from the accommodating part. It is a block diagram which shows the control system of this invention. FIG. 6 is a state diagram in which a sheet bundle is discharged to a storage unit. It is a state figure in which the back jogger and the side jogger have advanced to the stack side in the housing portion, and the side edges are pushed and aligned. It is a state figure which opens an opening-and-closing guide, drives a movable conveyor, and is sending out a stack. FIG. 9 is a state diagram in which a sheet bundle having a size smaller than that in FIG. It is a state diagram in which the back jogger and the side jogger advance to the small-size stack side and the side edges are pushed and aligned in the housing portion.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is an explanatory view of the structural relationship of an embodiment of a collating apparatus to which a sheet storage apparatus of the present invention is applied. FIG. 2 is a front view of the operation panel 3 in FIG. The sheet feeding unit 2 is provided in 10 stages on the left and right, and the sheets fed from the left and right stages are collated so that the leading ends (lower ends) are aligned in the central vertical conveyance path 14. The paper is fed from the folding paper feeding unit 4 and is sandwiched between the folding papers that are creased by the folding knife 17 and the folding roller 20. It is discharged to the section 23 (on the moving conveyor 8).

FIG. 3 is a front view showing the paper feeding unit 2.
The sheet bundle 36 is arranged on the sheet feeding plate 37 while being obliquely shifted. At the leading end of the sheet bundle 36, the sheet feeding roller 26 and the suction plate 32 are in pressure contact. The shaft of the paper feed roller 26 is rotationally driven by a paper feed motor (not shown).
An auxiliary paper feed roller 27 having the same shape as the paper feed roller 26 is provided upstream of the paper feed roller 26 in the paper feed direction. Both the shaft of the auxiliary paper feed roller 27 and the shaft of the paper feed roller 26 are provided with toothed pulleys 28 and 29, and the drive is transmitted by the toothed belt 30.

  When the paper feed motor rotates, the paper feed roller 26 and the auxiliary paper feed roller 27 rotate. Then, the uppermost sheet is fed between the sheet feeding roller 26 and the suction plate 32 by the auxiliary sheet feeding roller 27. At this time, even if two sheets are going to pass at the same time, the second and subsequent sheets are prevented from moving forward by the frictional force between the plate 32 and the sheet, so that only the uppermost sheet is sent out.

  One sheet fed out is added to the pair of horizontal conveying rollers 33 and is fed out in the direction of the arrow. The horizontal conveying roller pair 33 is always driven to rotate by a main motor (not shown). At this time, the paper detection sensor 34 detects the front edge and the rear edge of the paper, thereby detecting the transport amount therebetween.

As shown in FIG. 2, the sheets fed from the respective sheet feeding units 2 merge into the vertical conveyance path 14 and are conveyed downward while being stacked. The vertical conveyance path 14 is provided with a pair of vertical conveyance rollers 24 at a predetermined interval, and is always rotated by a main motor (not shown).
A folded paper feed unit 4 is provided below the row of 10-stage paper feed units 2 on one side. Folded sheets are stacked on the folding sheet feeding unit 4 and the configuration is the same as other sheet feeding units. The fed folded paper enters the folding plate 19 through the folding conveyance path 16, the front end abuts against the stopper 18, and the folded paper stops in a shape that blocks the lower end of the vertical conveyance path 14. The folding knife 17 descends at the timing when the sheet bundle collated in the vertical conveyance path 14 descends from above. The folded folding paper that has been stopped is folded in two by the folding roller 20 with a bundle of paper descending from above interposed therebetween. In this way, a bundle in which other sheets are sandwiched by folded sheets (a bundle of advertisements provided for delivery) is then discharged from the sheet discharge outlet 22 through the sheet discharge conveyance path 21. The folding conveyance path 16 and the paper discharge conveyance path 21 are also always driven by the main motor.

As shown in FIGS. 1 and 2, a storage unit 10 is provided below the folded sheet feeding unit 4. The storage unit 10 receives the sheet bundle discharged from the paper discharge port 22, accumulates the peripheral edges while aligning them by the aligning means (back jogger 9, side jogger 5), and accumulates to some extent to form a stack (hereinafter referred to as a stack). When it is done, the stack is taken out.
The sheet bundle discharged from the sheet discharge port 22 comes into contact with the front end guide 6 and falls onto the moving conveyor 8. When the discharge is repeated, the sheets are sequentially stacked thereon to form a stack.

  When the stack is stacked up to a predetermined height and full is detected by a full detection sensor (not shown) (or when a predetermined number of stacks are formed), the discharge of the stack of paper is stopped, and the stack is opened and closed. The guide 7 (see FIG. 4) is opened to the retracted position, the belt of the moving conveyor 8 is driven to rotate, the stack is moved in the direction of arrow B, and the stack is carried out in the direction of arrow C.

FIG. 4 is a top view showing the accommodating portion 10.
The bundle discharged from the collating machine in the direction of arrow A comes into contact with the guide surface 6a of the tip guide 6 and is discharged onto the moving conveyor 8. While discharging is repeated, the back jogger 9 as the aligning means and the movable portions 9a and 5a of the side jogger 5 reciprocate. The sheet bundle is sandwiched and aligned between the movable portion 9a of the back jogger 9 and the guide surface 6a of the front end guide 6. Similarly, the sheet bundle is aligned between the movable portion 5a of the side jogger 5 and the guide surface 7a of the open / close guide 7 at the alignment position. The open / close guide 7 can pivot between an alignment position and a retracted position about the fulcrum 7b. While the sheet bundle is being discharged, it is positioned at the alignment position.

  FIG. 5 is a perspective view showing the accommodating portion. In FIG. 5, the tip guide 6 and the opening / closing guide 7 are omitted for easy understanding.

  The moving conveyor 8 has a wide belt 83 that is put between rollers supported by shafts 81 and 82, respectively. A driving motor 84 is directly connected to the shaft 81, and a roller supported by the shaft 81 is rotated to drive the belt 83 around. The shafts 81 and 82 are supported between frames 85 and 86 erected on both side ends of the belt 83. Further, a back plate is passed between the frames 85 and 86 on the back surface of the belt 83, and the flatness of the top surface of the belt 83 is maintained.

  The back jogger 9 has a support portion 9b fixed to a frame 25 (see FIG. 2) of the collating machine with a screw 9c, and a movable portion 9a capable of reciprocating in the direction of arrow D. The movable portion 9a has an alignment surface 9d (alignment portion), and a contact position where the alignment surface 9d contacts the end surface of the stack St stacked on the movable conveyor 8, and the alignment surface 9d is separated from the end surface of the stack St. It reciprocates between the retreat positions. A drive motor and a crank mechanism are provided inside the support portion 9b, and the rotational motion of the motor is converted into the reciprocating motion of the movable portion 9a.

  Two screws 9c are provided, one on each side of the alignment surface 9d in the surface direction, and screwed into the screw holes drilled in the pedestal 25 through the long holes 9e provided in the support portions 9b. Has been. A lever 9f is attached to the screw 9c above, and the screw 9c is loosened by hand so that the position of the support portion 9b can be adjusted with respect to the mount 25 in the direction of the long hole 9e (the same direction as the arrow D). It has become.

  Three support members 91 are fixed to the frame 25 in a direction perpendicular to the alignment surface 9d from the lower end of the alignment surface 9d. The support member 91 has an upper surface formed in parallel with the conveying surface of the belt 83 and having a predetermined width, and three support surfaces 91a extending beyond the end 83a of the belt 83 are formed at the same height. doing.

  Sliding members 91b are affixed to the portions of the support surface 91a that overlap the belt 83 on the distal end side. The sliding member 91a is a sheet-like member having a sliding surface having a smaller friction coefficient in the moving direction of the belt 83 than the material of the supporting member itself. When the belt 83 is driven to carry out the stack St, Friction with the bottom surface of the stack St is reduced.

  The lower end of the alignment surface 9d extends below the support surface 91a at the interval between the support members 91 and the side portions thereof. Further, an anti-slip surface for preventing slippage with the abutted sheet is formed over the entire alignment surface 9d. Specifically, an artificial woven fabric such as Clarino (registered trademark) is pasted, but other fabrics, flocking sheets, rubbers, etc. may be pasted as long as they have an anti-slip effect. . Alternatively, instead of sticking, an anti-slip surface treatment such as embossed surface processing or anti-slip coating may be applied to the alignment surface 9d.

  The side jogger 5 has a support portion 5b fixed to a rear frame (not shown) passed between the frames 85 and 86 of the moving conveyor 9 by screws 5c, and a movable portion 5a capable of reciprocating in the direction of arrow E. . The movable portion 5a has an alignment surface 5d (alignment portion), a contact position where the alignment surface 5d contacts the end surface of the stack St stacked on the movable conveyor 8, and the alignment surface 5d is separated from the end surface of the stack St. It reciprocates between the retreat positions. A drive motor and a crank mechanism similar to those of the support portion 9b are also provided inside the support portion 5b so that the movable portion 5a reciprocates. The alignment surface 5d is also formed with an anti-slip surface similar to the alignment surface 9d.

  Similarly to the screw 9c, the screw 5c is provided on both sides in the surface direction of the alignment surface 5c, and the lever 5f is loosened by hand to move and adjust in the direction of the long hole 5e (the same direction as the arrow E) with respect to the rear frame. Can do.

  Below the side jogger 5, a belt 83 circulates a roller supported by a shaft 82, and a cover 5g fixed to the support portion 5b covers the portion. A long hole 5e is formed in the cover 5g.

  Three support members 51 are provided in a direction perpendicular to the alignment surface 5d from the lower end and both sides of the alignment surface 5d. The support member 51 has a support surface 51a formed on the upper surface thereof and parallel to the conveying surface of the belt 83 and having a predetermined width. The support surface 51a also covers the upstream circumferential portion of the belt 83 together with the cover 5g, that is, the support surface 51a gets over the upstream end of the conveying surface of the belt 83.

  As shown in FIG. 1, an elevator plate 11 that can be lifted and a lift mechanism 13 that lifts and lowers the elevator plate 11 are provided on the exit side of the moving conveyor 8. The elevator plate 11 stands by at a position slightly lower than the belt surface of the moving conveyor 8. The stack St carried out by the moving conveyor 8 is transferred onto the elevator plate 11. When the stack sensor 12 of the elevator plate 11 detects the arrival of the stack St, the elevating mechanism 13 operates to raise the elevator plate 11 and lift and stop the stack St.

FIG. 6 is a block diagram showing a control system of the present invention.
The main body of the collating apparatus 1 has a main control unit, each paper feeding unit 2 individually has a paper feeding control unit, and the housing unit has a housing control unit. There are as many paper feed control units as there are paper feed units.

  The pulse output means is provided with a circular plate having holes arranged in the circumferential direction on one of the shafts rotated by the main motor, and the optical sensor is arranged so that the hole of the circular plate can be detected. During motor rotation, pulses are always output. This pulse is sent to the main control unit and the paper feed control unit, and each operation timing during the operation of the main motor is timed by counting the pulses. Hereinafter, the term “pulse” refers to a pulse output by the pulse output means.

  When a start / stop switch provided on the operation panel 3 (see FIG. 1) of the main body is pressed, the main motor starts rotating. Next, the main control unit simultaneously transmits a paper feed trigger signal to the paper feed control units of the respective paper feed units 2 at a predetermined timing. This paper feed trigger signal is a timing reference signal that serves as a reference for paper feed timing. The paper feed control unit of each paper feed unit 2 starts paper feeding by driving the paper feed motor with a delay of a predetermined delay pulse from the timing of receiving the paper feed trigger signal. The predetermined number of delay pulses differs depending on each paper feed unit, and each paper feed unit 2 has a larger number as the paper feed unit 2 is positioned below so that the leading ends of the paper are aligned and overlapped in the vertical conveyance path 14. It is stored in the control unit.

  Accordingly, the sheets sent out at each timing form a bundle with the leading ends aligned in the vertical conveyance path 14. The folding sheet feeding unit 4 is also provided with a sheet feeding control unit. A delay pulse is set for the folded sheets so that the leading edge of the folded sheets abuts against the stopper 18 and waits a little before the overlapped bundle reaches the lowest position of the vertical conveyance path 14.

In this way, the folded sheet is sandwiched between the folding rollers 20 by the folding knife 17 and folded at the same time. At the same time, the bundle descending from above is sandwiched therebetween to form a bundle. The paper is discharged from 22.
Since the paper feed trigger is repeatedly transmitted at a predetermined pulse interval, a bundle of sheets (a bundle of advertisements for delivery) is formed one after another, and the sheets are sequentially discharged from the paper discharge port 22.

  After the start, the main control unit transmits a jog start signal to the accommodation control unit at the same time as the first paper feed trigger is generated. When the accommodation control unit receives the jog start signal, it starts driving the back jogger drive motor and the side jogger drive motor, and each jogger starts a reciprocating operation. In this way, the edges of the stack St formed by repeatedly discharging and accumulating the sheet bundle are aligned.

  When fullness is detected by the fullness detection sensor, the accommodation control unit sends a full signal to the main control unit. When the main control unit receives the full signal, it stops sending the paper feed trigger, completes collation of all the bundles that have been collated at that time, discharges them, and then sends a discharge completion signal to the accommodation control unit send. Upon receiving this discharge completion signal, the accommodation control unit stops the operations of the side jogger and the back jogger and drives the open / close guide drive motor to the retracted position. Further, the moving conveyor drive motor is rotated to drive the conveyor so that the stack St thereon is carried onto the elevator plate.

  When the placement sensor detects the arrival of the stack St on the elevator plate, the accommodation control unit drives the elevator lifting motor to lift the stack St and drives the opening / closing guide driving motor to move the opening / closing guide 7. The guide position. Furthermore, the back jogger drive motor and the side jogger drive motor are started to be driven, and the reciprocation of each jogger is resumed. The main control unit issues a carry-out completion signal, and the main control unit receives the signal and restarts repeating the feeding trigger (timing reference signal).

When the placement sensor detects that the user has taken out the stack St on the elevator plate 11, the elevator plate 11 descends and waits for the next stack St to be fed.
Instead of the full detection sensor, it may be carried out when a bundle of a predetermined number of copies is formed. The numerical value is input to the operation panel 3 or the like in advance and stored in the main control unit or the accommodation control unit.

  7 and 8 are diagrams showing the alignment operation, and FIG. 7 is a diagram showing a state in which the sheet bundle (sheet) S discharged from the discharge port is placed on the moving conveyor 8. FIG. 8 shows a state where the movable portions 9a and 5a of the back jogger 9 and the side jogger 5 have advanced to the sheet bundle S side, and the side edges of the sheet bundle S have been pushed and aligned. FIG. 9 shows a state in which the opening / closing guide 7 is opened, the moving conveyor 8 is driven, and the stack St is sent out.

  The sheet bundle S is repeatedly discharged from the discharge port, and is stacked on the moving conveyor 8 (accumulation unit) surrounded by the alignment surfaces 9d and 5d and the guide surfaces 6a and 7a to form a stack St. Meanwhile, since the movable portions 9a and 5a continue to reciprocate, the sheet bundle S is always pushed by the alignment surfaces 9d and 5d, and aligns the sheet bundle S with the guide surfaces 6a and 7a at the positions shown in FIG. Therefore, the side edges of the stack St are aligned. A portion near the back jogger 9 on the lower surface of the lowermost sheet bundle S of the stack St thus formed is supported by the support member 91. Similarly, the portion near the side jogger 5 is supported by the support member 51.

  When the first sheet bundle S is discharged in a state where there is no sheet bundle S on the moving conveyor 8, the sheet bundle S has a portion near the back jogger 9 at the portion near the side jogger 5 of the support member 91. The support member 51 is directly mounted on each support surface. In this state, the back jogger 9 and the side jogger 5 push the side edge of the sheet bundle S to move it to the position shown in FIG. Therefore, the sheet bundle S is separated from the conveying surface of the belt 83 in the portions supported by the support members. Therefore, the back jogger 9 and the side jogger 5 can be reliably brought into contact with the sheet bundle S and moved to the position shown in FIG.

  Further, in the sheet bundle S, the portion supported by the support member is higher than the other portions, so that the side end on the back jogger 9 side and the side end on the side jogger 5 side are inclined upward. Become. However, since the alignment surfaces 9d and 5d are formed with anti-slip surfaces, they do not buckle when the alignment surfaces 9d and 5d come into contact with each other.

Further, since the alignment surfaces 9d and 5d extend below the support surfaces 91a and 51a in the portions where the support members 91 and 51 are not provided, even when the sheet S is thin, the sheet S is aligned with the alignment surfaces 9d and 5d and the support surface 91a. , 51a, and can be moved to the position shown in FIG. 8 with the side edges in contact with the alignment surfaces 9d and 5d without fail. The stack St exceeds a predetermined height and fullness is detected. As shown in FIG. 9, the open / close guide 7 is opened, moved to the right in the figure by the moving conveyor 8, and moved to the elevator plate 11.

  FIGS. 10 and 11 are diagrams illustrating the alignment operation, and are diagrams illustrating a case where the size of the sheet bundle S is smaller than those in FIGS. 7 and 8. In the back jogger 9 and the side jogger 5, the positions of the support portions 9b and 5b are adjusted in advance according to the sheet bundle S. To adjust, loosen the screws 9c and 5c with the levers 9f and 5f, move the support portions 9b and 5b in the directions of arrows D and Eg, respectively, determine the position, and tighten the screws 9c and 5c with the levers 9f and 5f again to fix them. (See FIG. 4).

  Since the stroke of the reciprocating operation of the back jogger 9 and the side jogger 5 is not changed, the smaller the size of the sheet bundle S, the closer the back jogger 9 is to the retracted position and the abutting position, and the retracted position of the side jogger 5 is. The contact position approaches the open / close guide 7.

  In this embodiment, since the support member 91 is fixed to the gantry 25, the position is not changed, and the support member 51 is fixed to the support portion 5b, and thus moves together with the support portion 5b. Regardless of the position adjustment of 9b and 5b, the position may be unchanged, or it may be configured to move together with the support portions 9b and 5b.

  In FIG. 10, the movable portions 9a and 5a are in the retracted position, and the sheet bundle S is in a position before alignment, and in FIG. 11, the movable portions 9b and 5b are in contact positions, and the sheet bundle S is in a position after alignment. As shown in FIGS. 10 and 11, the side end of the aligned sheet bundle S on the back jogger 9 side is inside the end 83 a of the belt 83, and the alignment surface 9 d of the back jogger 9 is at the retracted position. In the middle of moving between the contact positions, the end 83a of the belt 83 is exceeded. However, since the support member 91 extends beyond the end portion 83 a of the belt 83, the lower surface of the sheet bundle S is separated from the conveying surface of the belt 83 in this portion. The aligning surface 9d extends downward from the support surface 91a at a distance from both sides of the support member 91, and the lower end of the extended portion is positioned higher than the conveying surface of the belt 83. The aligning surface 9d and the end portion 83a of the belt 83 can be brought into contact with the side end of the sheet bundle S without interference.

  Similarly, in the side jogger 5, since the support member 51 exceeds the upstream end portion of the belt 83, the aligning surface 5 d can contact the side end of the sheet bundle S without interfering with the belt 83.

  As described above, the sheet storage device of the present invention can obtain a stack with aligned side edges by stacking the joggers securely against the side edges, regardless of whether the sheets S are thick, thin, or different in size. Can do. Therefore, the alignment work after taking out can be made unnecessary.

The reciprocating operation of the back jogger 9 and the side jogger 5 may be interlocked with each other so that they both advance to the contact position at the same time or alternately advance to the contact position. May be.

1 collating device, 5 side jogger, 5a movable part, 5b movable part, 5c screw, 5d aligning surface, 5e oblong hole, 5f lever, 5g cover, 6 tip guide, 6a guide surface, 7 opening / closing guide, 7a guide surface, 8 moving conveyor, 9 back jogger, 9a movable part, 9b movable part, 9c screw, 9d alignment surface, 9e long hole, 9f lever, 10 accommodating part, 11 elevator plate, 23 storage part, 25 mount, 51 support member, 51a Support surface, 83 belt, 91 support member, 91a support surface, 91b sliding member, S paper bundle, St stack

Claims (8)

An accumulator that stacks sheets on a carry-out belt to form a stack;
It has aligned portion, provided abutting contact position to the side of the stack該揃example portion are stacked on the transportable out belt, between a retracted position away from the side of the stack to reciprocate jogger When,
A support member that extends in a reciprocating direction of the alignment portion on the conveyor belt and supports a lower surface of the stack;
A sheet storage device comprising:   The sheet storage device according to claim 1, wherein the aligning portion is in contact with a side surface of the stack on a support surface of the support member.   The sheet accommodation apparatus according to claim 1, wherein the aligning section performs the reciprocating movement on a support surface of the support member.   4. The sheet storage device according to claim 1, wherein the support member extends from the outside of the carry-out belt onto the carry-out belt. 5.   5. The sheet storage device according to claim 1, wherein the aligning section performs the reciprocating movement from the outside of the carry-out belt to the carry-out belt. The sheet storage device according to claim 1, further comprising an alignment position adjusting unit that adjusts a contact position of the alignment portion of the jogger in a reciprocating direction of the jogger.   The sheet storage device according to any one of claims 1 to 6, wherein an extension portion extending downward from a support surface of the support member is formed in at least a part of the alignment portion of the jogger.   The sheet storage device according to claim 7, wherein a lower end of the extending portion is higher than a conveying surface of the conveying belt.

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