JP5377677B2 - Cut paper feeding device - Google Patents

Description

  The present invention relates to a cut sheet feeding device that sequentially extracts and feeds cut sheets from a group of cut sheets stacked one above the other.

  2. Description of the Related Art Conventionally, as this type of cut sheet feeding device, an apparatus in which a conveyance belt is rotated and brought into contact with the lower end of a cut sheet group while a rear end portion of the cut sheet group is lifted by an inclined guide member having an upper surface inclined forward. (For example, patent document 1).

JP 2010-168201 A (FIG. 1)

  However, the above-described conventional cut sheet feeding device feeds the cut sheet that has been previously extracted from the group of cut sheets in a state where the front end of the next cut sheet overlaps the so-called partial double feed. There was a problem that this problem was likely to occur.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cut sheet feeding apparatus capable of reducing the occurrence of partial double feeding as compared with the prior art.

  The inventor of the present application has elucidated the mechanism of partial double feeding, which has not been clarified in the past, as follows. That is, when the lowermost cut sheet (hereinafter referred to as “first cut sheet”) in the cut sheet group is pulled out by the conveyance belt, the next cut sheet (hereinafter referred to as “second cut sheet”) of the first cut sheet. The contact area between the “cut paper” and the conveyor belt increases, and the dynamic friction force that the second cut paper receives from the conveyor belt also increases. Then, before the first cut sheet is completely pulled out, the dynamic frictional force acting between the second cut sheet and the conveying belt causes the cut sheet next to the second cut sheet and the second cut sheet to be cut. When the static frictional force acting between the paper and the paper becomes larger, partial double feeding occurs. Accordingly, when the first cut sheet is completely pulled out, the dynamic frictional force acting between the second cut sheet and the conveyor belt causes the cut sheet next to the second cut sheet and the second cut sheet. If the contact area between the second cut sheet and the conveyor belt is set so as to be larger than the static frictional force acting between the first cut sheet and the second cut sheet, the second cut sheet is completely removed before the first cut sheet is completely pulled out. Thus, it is possible to prevent so-called partial double feeding, in which the feeding of the cut paper is started and a part of the cut paper is conveyed while being overlapped.

Therefore, the inventor of the present application can reduce the occurrence of partial double feed by adjusting the contact area between the cut sheet and the conveyor belt by a member that can move back and forth separately from the inclined guide member, and partial double feed occurs. In this case, the inventor has obtained the knowledge that the partial double feeding can be easily eliminated, and the inventions of claims 1 to 9 have been completed.

That is, the cut sheet feeding device according to the first aspect of the present invention is such that the conveying belt is rotated and brought into contact with the lowermost end of the group of cut sheets stacked up and down, and the lowermost cut sheets are sequentially cut from the cut sheet group. In the cut paper feeding device that extracts and feeds the paper in the forward direction in the feeding direction, it is arranged below the cut paper group, and the rear portion from the intermediate position in the cut paper feeding direction at the lowermost end of the cut paper group is separated from the conveyor belt. A belt contact amount adjusting member that floats and supports the front portion of the intermediate belt so as to be capable of rotating contact with the conveyor belt, and a portion of the upper surface of the belt contact amount adjusting member that is located above the rotational contact surface with the cut sheet of the conveyor belt. is formed on the front end of the delivery inclined surface inclined forwardly downwards, it is arranged below the rear end portion of the cut sheet group, with projecting from the belt contact amount adjusting member upwardly, downwardly inclined front An inclined guide member having a guide surface for shifting a plurality of cut sheets included in the cut sheet group along the guide surface in the cut sheet feeding direction, and an arbitrary position of the inclined guide member in the cut sheet feeding direction An inclination guide member variable support mechanism that can be moved and fixed, and a belt contact amount adjustment mechanism that can be fixed by moving the belt contact amount adjustment member to an arbitrary position in the cut sheet feeding direction separately from the inclination guide member, It has the feature in having.

According to a second aspect of the invention, the cut sheet feeder according to claim 1, formed in a rear portion than passing the inclined surface of the upper surface of the belt contact amount adjusting member, between the horizontal plane than the delivery inclined surfaces It is characterized in that it has a cut paper main support surface with a small inclination angle.

According to a third aspect of the present invention, there is provided a cut sheet feeding device in which a transport belt is brought into rotational contact with the lowermost end of a group of cut sheets stacked one above the other, and the lowermost cut sheets are sequentially fed from the cut sheet group. In a cut sheet feeding device that pulls out and feeds forward in the direction, it is arranged below the group of cut sheets, and the rear part is floated from the conveyance belt from the middle position in the cut sheet feeding direction at the lowermost end of the group of cut sheets, and A belt contact amount adjusting member that supports the front portion of the intermediate belt so as to be able to rotate and contact the conveyor belt, and the entire portion in contact with the cut paper group is a flat surface inclined forward and downward, and the rear end of the cut paper group Is disposed below the belt, protrudes upward from the belt contact amount adjusting member, and has a guide surface inclined forward and downward, and a plurality of cut sheets included in the cut sheet group are cut along the guide surface. How to send Inclined guide member for shifting, Inclined guide member variable support mechanism which can be fixed by moving the inclined guide member to any position in the cut paper feeding direction, and the belt contact amount adjusting member separately from the inclined guide member It is characterized in that it is provided with a belt contact amount adjusting mechanism that can be moved and fixed to an arbitrary position in the cut sheet feeding direction.

According to a fourth aspect of the present invention, in the cut sheet feeding device according to any one of the first to third aspects, the belt contact amount adjusting member is provided on the side of the conveyance belt. And a pair of delivery protrusions inclined such that the upper surface of the front end portion is positioned below the rotational contact surface with the cut sheet of the conveyor belt, while the upper surface of the rear end portion is positioned above the rotational contact surface. The present invention is characterized in that a delivery protrusion is disposed between the transport belts, or a delivery portion in which the transport belt is disposed between the pair of delivery protrusions.

According to a fifth aspect of the present invention, in the cut sheet feeding device according to the fourth aspect , the apparatus includes a belt contact amount adjusting member that has a cover portion that covers the conveyor belt from above, and a transfer protrusion projects from the front end of the cover portion. It has features.

According to a sixth aspect of the present invention, in the cut sheet feeding device according to any one of the first to fifth aspects, the belt contact amount adjusting member is supported so as to be linearly movable in the cut sheet feeding direction. The belt contact amount adjusting mechanism includes a guide and a first fixing portion that can fix the belt contact amount adjusting member at an arbitrary position along the first guide.

A seventh aspect of the invention is the cut sheet feeding device according to the sixth aspect , wherein a plurality of first locking portions formed along the longitudinal direction of the first guide and the belt contact amount adjusting member are provided. A first locking claw capable of reciprocating between a first locking position locked to an arbitrary first locking portion and a first release position where the engagement of the first locking portion is released; It has a feature in that it includes a first fixing portion constituted by a first spring for holding one locking claw at a first locking position.

The invention of claim 8 is the cut sheet feeder according to any one of claims of claims 1 to 7, a second guide for linear motion supporting the inclined guide member sheet paper feed direction Further, the present invention is characterized in that an inclined guide member variable support mechanism configured with a second fixing portion capable of fixing the inclined guide member at an arbitrary position along the second guide is provided.

According to a ninth aspect of the present invention, in the cut sheet feeding device according to the eighth aspect , the plurality of second locking portions formed along the longitudinal direction of the second guide and the inclined guide member are provided. A second locking claw capable of reciprocating between a second locking position locked to the second locking portion and a second release position where the locking with the second locking portion is released; It has a feature in that it includes a second fixing portion constituted by a second spring for holding the locking claw in the second locking position.

In the cut sheet feeding device according to the first and third aspects of the present invention, the rear portion from the intermediate position in the cut sheet feeding direction at the lowermost end of the cut sheet group is lifted from the conveyance belt, and the front portion from the intermediate position is used as the conveyance belt. A belt contact amount adjusting member that is supported so as to be able to rotate is provided. The belt contact amount adjusting mechanism can adjust the contact area between the transport belt and the cut sheet group by changing the position of the belt contact amount adjusting member in the cut sheet feeding direction. Thereby, generation | occurrence | production of partial double feeding can be reduced conventionally. Further, the lower end portion of the cut sheet group can be scattered by the inclined guide member so as to be shifted forward along the guide surface, thereby assisting in reducing the occurrence of partial double feeding. Moreover, since the inclined guide member can change the position in the cut sheet feeding direction, it can cope with the size change of the cut sheet. Furthermore, in the present invention, since the belt contact amount adjusting member and the inclined guide member can be independently changed in position, the cut sheet group and the conveyance belt are fixed while the inclined guide member is fixed at a position corresponding to the size of the cut sheet. It is possible to change the contact area.

Here, as in the invention of claim 1, the belt contact amount adjusting member is disposed at the front end of the upper surface of the belt contact amount adjusting member at the front end of the portion located above the rotational contact surface with the cut sheet of the conveyor belt. A configuration may be adopted in which a delivery slope surface inclined downward is formed, and the upper surface of the rear portion of the delivery slope surface is flush with the delivery slope surface, that is, as in the invention of claim 3. The structure which the whole part which contacts a cut paper group among the upper surfaces of a contact amount adjustment member inclines in front-down may be sufficient. According to the first and third aspects of the invention, when the cut paper is extracted from the cut paper group, the rear side portion of the cut paper supported by the belt contact amount adjusting member can be smoothly delivered to the conveyance belt. It becomes possible.

In the first aspect of the present invention, the belt contact amount adjusting member may have a smaller inclination angle between the upper surface of the rear side portion than the delivery inclined surface and the horizontal surface than the delivery inclined surface (claim 2). invention). According to this configuration, the cut sheet group can be stably supported by the belt contact amount adjusting member.

Further, as in the invention of claim 4 , the upper surface of the front end is positioned below the rotational contact surface with the cut paper in the transport belt, while the upper surface of the rear end is positioned above the rotational contact surface. By adopting a configuration including a transfer protrusion that is inclined to the front, there is no step between the upper surface of the transfer protrusion and the rotation contact surface of the conveyor belt at the cut paper transfer portion, and the cut paper may be creased. It can be suppressed. A configuration in which only one pair of transport belts is provided and a transfer protrusion is disposed between the pair of transfer belts, or only one pair of transfer protrusions is provided, and the pair of transfer protrusions is provided. The configuration in which the conveyor belt is arranged includes a configuration in which a plurality of conveyor belts and delivery protrusions are provided and these are alternately arranged.

Further, the belt contact amount adjusting member may be a structure composed by connecting a plurality of strip members disposed side by side at intervals, as in the invention of claim 5, the conveyor belt from above The cover may have a cover part, and a configuration in which the transfer protrusion protrudes from the front end of the cover part may be employed. According to the invention of claim 5 , the support of the cut sheet group by the belt contact amount adjusting member is stabilized.

The belt contact amount adjusting mechanism may be composed of a magnet that couples the base member that supports the belt contact amount adjusting member and the belt contact amount adjusting member, or a clamp that clamps the belt contact amount adjusting member and the base member. May be configured. Further, as in the invention of claim 6 , the belt contact amount adjusting member is supported at an arbitrary position along the first guide, and the first guide that supports the belt contact amount adjusting member so as to be linearly movable in the cut sheet feeding direction. You may be comprised with the 1st fixing | fixed part which can be fixed. Specifically, the belt contact amount adjusting mechanism may be configured by a rack and pinion mechanism in which the first guide is a rack and the first fixing portion is a pinion, or the first guide is a ball screw and the first fixing is performed. The belt contact amount adjusting mechanism may be configured by a ball screw mechanism having a ball nut as a part. Further, as in the seventh aspect of the invention, a plurality of first locking portions formed along the longitudinal direction of the first guide and the belt contact amount adjusting member are provided and locked to the first locking portion. A first locking claw capable of reciprocating between the first engagement position and the first release position where the engagement of the first locking portion is released; and the first locking claw at the first locking position. You may comprise a 1st fixing | fixed part with the 1st spring to hold | maintain. According to the invention of claim 6 , the linear movement of the belt contact amount adjusting member in the cut sheet feeding direction can be stabilized.

The tilt guide member variable support mechanism can also have the same configuration as the belt contact amount adjustment mechanism (inventions of claims 8 and 9 ). In addition, according to invention of Claim 8 , stabilization of the linear motion of the inclination guide member in a cut paper feed direction is achieved.

Rear perspective view of a cut sheet feeding device according to the first embodiment Side sectional view of the conveyor belt and cut sheet group Plan view of belt contact amount adjustment member Side sectional view around the cut paper group Side sectional view for explaining the operation of the cut sheet feeding device Side sectional view for explaining the operation of the cut sheet feeding device Side sectional view for explaining the operation of the cut sheet feeding device Side sectional view for explaining the operation of the cut sheet feeding device Side sectional view of belt contact amount adjusting member and inclined guide member Rear perspective view of a cut sheet feeding device according to a second embodiment The top view of the belt contact-amount adjustment member which concerns on 2nd Embodiment. Side sectional view of belt contact amount adjusting member and inclined guide member according to second embodiment Side sectional view around the cut sheet group according to the second embodiment Rear perspective view of a cut sheet feeding device according to a third embodiment The top view of the belt contact-amount adjustment member which concerns on 3rd Embodiment Side sectional view around the cut sheet group according to the third embodiment Side sectional view of the belt contact amount adjusting member according to the fourth embodiment. Side sectional view of belt contact amount adjusting member according to modification Side sectional view of belt contact amount adjusting member according to modification Side sectional view of belt contact amount adjusting member according to modification The top view of the belt contact-amount adjustment mechanism which concerns on a modification Side sectional view of belt contact amount adjusting mechanism according to modification. Rear perspective view of belt contact amount adjusting member and tilt guide member according to modified example Side sectional view of belt contact amount adjusting mechanism according to modification. Rear perspective view of belt contact amount adjusting member and tilt guide member according to modified example The top view of the belt contact-amount adjustment mechanism which concerns on a modification Side sectional view of belt contact amount adjusting member and tilt guide member according to modification.

[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the cut sheet feeding device 10 according to the present invention is configured by assembling various components to a base frame 90. The base frame 90 has a box shape as a whole, and includes side plates 92 and 92 that face each other in the horizontal direction, and an upper surface plate 93 that connects the rear end portions of the side plates 92. The top plate 93 is parallel to the horizontal plane.

  Of the side plates 92, 92, side walls 94S, 94S are erected at a substantially central position in the front-rear direction, and a component mounting portion 94 is provided at a position sandwiched between the side walls 94S, 94S. On the rear side of the component mounting portion 94, there is provided a stock portion 70 on which a group of cut sheets G formed by stacking a plurality of cut sheets S can be placed (see FIG. 2). In the drawings used in this specification, the thickness of the cut sheet S and the interval between the cut sheets S in the cut sheet group G are exaggerated.

  As shown in FIG. 2, the stock portion 70 has a front end wall 71 addressed to the rear surface of the component mounting portion 94. The front end wall 71 is substantially perpendicular to the upper surface plate 93, and the lower end portion protrudes forward. A cut sheet is interposed between the lower end edge of the front end wall 71 and a belt conveyance unit 60 described later. A cut sheet discharge port 72 through which S can pass is formed.

  An inclined guide member 73 is provided behind the stock unit 70. The inclined guide member 73 includes a plurality of triangular plates 74 arranged in the width direction of the base frame 90 (opposite direction of the side plates 92 and 92), and a mounting plate 75 for fixing the triangular plates 74 to the upper surface plate 93 (see FIG. 1). The triangular plate 74 has a right-angled triangular shape having a hypotenuse inclined obliquely downward, and a plurality of cut sheets positioned on the lower end side of the group of cut sheets G placed on the stock unit 70. Abuts the rear edge of S. Thereby, the lower cut sheet S among the cut sheets S stacked vertically is shifted forward with respect to the upper cut sheet S. The inclined surface of the triangular plate 74 is the guide surface 73M of the present invention.

  As shown in FIG. 6, the mounting plate 75 is formed with a second guide long hole 75 </ b> A extending in the front-rear direction. Further, as shown in the figure, the upper surface plate 93 is also formed with a base long hole 93A extending in the front-rear direction. Then, in a state where the second guide long hole 75A and the base long hole 93A are overlapped, the bolt B passing through the second guide long hole 75A and the base long hole 93A is tightened with the nut N, so that the inclined guide member 73 becomes the top plate. 93 is fixed. The inclined guide member 73 can change the position in the front-rear direction along the second guide long hole 75A and the base long hole 93A by loosening the bolt B, and the inclined guide member 73 can be changed according to the size of the cut sheet S. The position of the member 73 can be selectively adjusted in the front-rear direction.

  As shown in FIG. 2, below the stock unit 70, a belt transport unit 60 is provided for sequentially extracting and feeding a plurality of cut sheets S placed on the stock unit 70 forward from the lower end side. ing. Specifically, a conveyor belt 63 is bridged between a rear pulley 61 disposed just below the stock section 70 and a front pulley 62 disposed in front of the stock section 70. A plurality of belts 63 are provided in parallel to each other in the width direction of the base frame 90.

  Specifically, a rear shaft 64 and a front shaft 65 that are parallel and horizontal to each other are provided between the pair of side plates 92 and 92 in the base frame 90. Both ends of the rear shaft 64 and the front shaft 65 are pivotally supported by the side plates 92 and 92 via bearings (not shown). A plurality of rear pulleys 61 are pivotally supported on the rear shaft 64 at intervals, and the same number of front pulleys 62 as the rear pulley 61 are pivotally supported on the front shaft 65 at intervals. A conveyor belt 63 is bridged between the rear pulley 61 and the front pulley 62 arranged in the front-rear direction.

  The conveyor belt 63 is in frictional contact with the lower surface of the lowermost cut sheet S in the cut sheet group G placed on the stock unit 70, so that the lowermost cut sheet S is discharged from the stock unit 70. It is extracted from the outlet 72 and is slid forward. Note that the surface of the conveyor belt 63 facing upward is a rotational contact surface 63M with the cut sheet S, and the rotational contact surface 63M is provided in parallel with the upper surface plate 93.

  The conveyance belt 63 uses a servo motor 66 disposed below the upper surface plate 93 as a drive source. That is, an output pulley 66P is fixed to an output shaft (not shown) connected to the rotor of the servo motor 66, and one end of the front shaft 65 that penetrates one side plate 92 is driven. A pulley 65P is fixed. A timing belt 67 is bridged between the output pulley 66P and the drive pulley 65P. The tension of the timing belt 67 can be adjusted by a tension roller (not shown).

  A multifeed restricting member 30 is provided at a position away from the cut paper discharge port 72 of the stock unit 70. The multifeed restricting member 30 is supported by a support member 31 attached to the front end portion of the component attaching portion 94 so as to be movable up and down, and is urged downward by a compression coil spring (not shown). Then, the cut sheet S extracted from the stock unit 70 by the rotation of the conveyance belt 63 pushes up the double feed regulation member 30 and passes between the double feed regulation member 30 and the conveyance belt 63. .

  A downstream belt conveyance unit 80 for feeding the cut paper S discharged from the cut paper discharge port 72 further forward is provided at a portion in front of the multi-feed regulating member 30. The downstream conveyance belt unit 80 has the same configuration as the belt conveyance unit 60, and a downstream conveyance belt 83 is bridged between the rear downstream pulley 81 and the front downstream pulley 82, and a similar downstream conveyance belt 83 is provided. A plurality of base frames 90 are provided in parallel to each other in the width direction (see FIG. 2). The upper surface of the downstream conveyance belt 83 is provided so as to be flush with the rotational contact surface 63M of the conveyance belt 63.

  A rear downstream shaft 84 and a front downstream shaft 85 that are parallel and horizontal to each other are pivotally supported between the side plates 92 and 92, and the front downstream shaft 85 and the rear downstream shaft 84 include a plurality of front downstream pulleys. 81, a rear downstream pulley 81 is pivotally supported with a space therebetween. A downstream conveying belt 83 is bridged between the rear downstream pulley 81 and the front downstream pulley 82 arranged in the front-rear direction.

  The rear downstream shaft 84 is connected to the front shaft 65 of the belt conveyance unit 60 described above. Specifically, a connecting belt 87 is stretched between a downstream connecting pulley 86 that is pivotally supported by the rear downstream shaft 84 and a connecting pulley 69 that is pivotally supported by the front shaft 65. Thereby, the downstream conveying belt 83 is rotated by receiving a driving force from the servo motor 66.

  Here, the connecting pulley 69 and the downstream connecting pulley 86 have the same diameter on one end side in the axial direction (the lower side in FIG. 2), and the connecting belt 87 is hung on one end side of the connecting pulley 69 and the downstream connecting pulley 86. When passed, the conveyance speed of the downstream conveyance belt 83 becomes the same as the conveyance speed with the conveyance belt 63. Further, the other end side in the axial direction of the connecting pulley 69 (upper side in FIG. 2) has a larger diameter than the one end side, and the other end side in the axial direction of the downstream connecting pulley 86 has a smaller diameter than the one end side. Yes. When the connecting belt 87 is stretched over the other ends of the connecting pulley 69 and the downstream connecting pulley 86 (this state is shown in FIG. 2), the transport speed of the downstream transport belt 83 is the transport belt 63. It becomes larger than the transport speed.

  The downstream conveying belt 85 is configured to frictionally contact the lower surface of the cut sheet S discharged from the cut sheet discharge port 72 of the stock unit 70, thereby feeding the discharged cut sheet S further forward. .

  In addition, a plurality of press rollers 88 are rotatably supported above the downstream belt transport unit 80, and the press paper 88 transports the cut sheet S transported by the downstream transport belt 83 from above. .

  The cut sheet feeding device 10 according to the present embodiment includes a belt contact amount adjusting member 20 that can slide in the front-rear direction on the top plate 93. The belt contact amount adjusting member 20 lifts the lowermost rear portion of the cut sheet group G from the conveyance belt 63 and supports the lowermost front portion of the cut sheet group G so as to be in rotational contact with the conveyance belt 63. Yes.

  The belt contact amount adjusting member 20 includes a cover portion 24 having an upper surface parallel to a horizontal plane, and the cover portion 24 covers a range from the upper side to the rear end of the transport belt 63 from the front to the rear. ing. In detail, the cover portion 24 has a horizontal plate shape.

  As shown in FIG. 6, the cover portion 24 is formed with a first guide long hole 20 </ b> A extending in the front-rear direction. Then, in a state where the first guide long hole 20A and the base long hole 93A of the upper surface plate 93 are overlapped, the nut N is tightened on the bolt B passing through the first guide long hole 20A and the base long hole 93A. The contact amount adjusting member 20 is fixed to the upper surface plate 93. When the bolt B is loosened, the belt contact amount adjusting member 20 can change the position in the front-rear direction along the first guide long hole 20A and the base long hole 93A. A slight gap is formed between the cover portion 24 and the transport belt 63 so that the cover portion 24 does not contact the transport belt 63 (see FIG. 5C).

  Specifically, the cover portion 24 of the belt contact amount adjusting member 20 is sandwiched between the mounting plate 75 of the inclined guide member 73 and the upper surface plate 93, and the base long hole 93A of the upper surface plate 93 and the belt contact amount adjusting member. In a state where the first guide long hole 20A of 20 and the second guide long hole 75A of the mounting plate 75 are overlapped, the bolt B and the nut N are screwed together to fix the mounting plate 75 and the upper surface plate 93, It is fixed to the upper surface plate 93.

  As shown in FIG. 4, engagement protrusions 21 and 21 (only one of them is shown in FIG. 4) extending in the front-rear direction are provided on the lower surface of the cover portion 24. The engagement protrusions 21 and 21 engage with slits 93S and 93S (see FIG. 3) formed rearward from the front end of the upper surface plate 93, and the width direction of the belt contact amount adjusting member 20 (see FIG. 3). The movement in the vertical direction is restricted.

  Here, in the present embodiment, the first guide long hole 20A corresponds to the “first guide” of the present invention, and the second guide long hole corresponds to the “second guide”. Further, the bolt B and the nut N constitute the “first fixing portion” and the “second fixing portion” of the present invention. The inclined guide member variable support mechanism 76 of the present invention is configured by the second guide long hole 75A, the bolt B, and the nut N, and the first guide long hole 20A, the bolt B, and the nut N are The belt contact amount adjusting mechanism 26 of the present invention is configured.

  As shown in FIG. 1, the belt contact amount adjusting member 20 includes a plurality of delivery protrusions 25 protruding from the front end of the cover portion 24. As shown in FIG. 3, the transfer protrusions 25 and the conveyance belt 63 are alternately arranged side by side, and the front end portion of the transfer protrusions 25 is disposed below the rotation contact surface 63 </ b> M of the conveyance belt 63. And the delivery part 27 (refer FIG. 4) of this invention is formed by the several delivery protrusion 25 and the several conveyance belt 63. As shown in FIG.

  As shown in FIG. 4, the transfer projecting piece 25 includes an inclined portion 25A that is inclined forward and downward from the front end of the cover portion 24, and a linear portion 25B that extends forward from the front end of the inclined portion 25A. The upper surface of the rear end portion is located above the rotational contact surface 63M of the conveyor belt 63, and the upper surface of the front end portion of the inclined portion 25A is located below the rotational contact surface 63M. The portion of the upper surface of the transfer protrusion 25 that is disposed above the rotational contact surface 63M of the conveyor belt 63 forms the transfer inclined surface 25M of the present invention, and the upper surface of the cover portion 24 supports the cut sheet main support of the present invention. A surface 24M is formed. In detail, the upper surface of the inclined portion 25A is curved so as to go downward as it goes forward.

  Next, the function and effect of the cut sheet feeding device 10 will be described. In using the cut sheet feeding device 10, first, the front and rear positions of the belt contact amount adjusting member 20 and the inclined guide member 73 are adjusted, and the cut sheets S to be fed are stacked and set on the stock unit 70. FIG. 5A shows a case where the front end of the cover portion 24 of the belt contact amount adjusting member 20 is disposed at a position near the rear end of the cut sheet group G. At this time, the rear end of the lower end portion of the cut sheet group G is supported by the inclined guide surface 73M of the inclined guide member 73, and the cut sheet S positioned at the lower end portion of the cut sheet group G is shifted forward as it goes downward. It is like that. Further, a front side portion of the cut sheet group G that is supported by the inclined guide member 73 is supported by the belt contact amount adjusting member 20, and a portion of the cut sheet group G that is supported by the belt contact amount adjusting member 20. Further, the front portion is in contact with the conveyor belt 63.

  When the conveyance belt 63 is driven to rotate after the cut sheet S is set, the rotation contact surface 63M of the conveyance belt 63 and the lower surface of the first cut sheet S1 positioned at the bottom of the cut sheet group G are brought into frictional contact. The first cut sheet S1 moves forward from the stock unit 70 via the cut sheet discharge port 72.

  At this time, the front end portion of the upper surface of the belt contact amount adjusting member 20 located above the rotational contact surface 63M of the conveyor belt 63, that is, the transfer inclined surface 25M is inclined forward and downward, so that the cut sheet group When the cut sheet S is extracted from G, the rear side portion of the cut sheet S supported by the belt contact amount adjusting member 20 can be smoothly delivered to the transport belt 63. In addition, since there is no step between the upper surface of the transfer protrusion 25 and the rotation contact surface 63M at the transfer portion of the cut paper S, it is possible to prevent the cut paper S located at the lowermost portion of the cut paper group G from being creased. It is done.

  When the first cut sheet S1 moves forward, the lower surface of the rear end portion of the second cut sheet S2 positioned one above the first cut sheet S1 is exposed, and the lower surface of the second cut sheet S2 is exposed. It contacts the rotational contact surface 63M of the conveyor belt 63. When the contact area between the second cut sheet S2 and the transport belt 63 increases with the movement of the first cut sheet S1, the dynamic frictional force that the second cut sheet S2 receives from the transport belt 63 increases. Then, when the first cut sheet S1 is completely extracted from the cut sheet group G, the dynamic frictional force that the second cut sheet S2 receives from the conveying belt 63 is the second cut sheet S2 and the second cut sheet. The static frictional force between the third cut paper S3 and the third cut paper S3 on the paper is larger, and the feeding of the second cut paper S2 is started. Accordingly, the cut sheets S are sequentially fed forward from the lower end side of the cut sheet group G.

  Here, for example, when the coefficient of friction of the cut sheet S is large, the dynamic friction that the second cut sheet S2 receives from the conveying belt 63 before the first cut sheet S1 is completely extracted from the cut sheet group G. There is a possibility that the force becomes larger than the static frictional force between the second cut paper S2 and the third cut paper S3, and the feeding of the second cut paper S2 starts (see FIG. 5B). ). In such a case, only the belt contact amount adjusting member 20 is slid forward as shown in the change in FIGS. 5A to 5C. At this time, since the engagement protrusion 21 of the cut sheet separating member 20 is engaged with the slit 93S of the upper surface plate 93, the movement of the belt contact amount adjusting member 20 is stabilized.

  As shown in FIG. 5C, when the belt contact amount adjusting member 20 is disposed forward, when the first cut sheet S1 moves forward due to frictional contact with the transport belt 63, the second cut sheet S2 Contact between the rear end portion of the lower surface and the conveyor belt 63 is prevented by the belt contact amount adjusting member 20, and the contact area between the second cut sheet S2 and the conveyor belt 63 is smaller than that shown in FIG. 5B ( See FIG. 5D). As a result, the dynamic friction force acting between the second cut sheet S2 and the conveying belt 63 can be reduced, and when the first cut sheet S1 is completely extracted from the cut sheet group G, the second The feeding of the cut sheet S2 can be started. That is, partial double feeding of the cut sheet S can be eliminated.

  Here, the upper surface (the cut sheet main support surface 24M) of the cover portion 24 that is in contact with the rear end of the delivery projecting piece 25 in the belt contact amount adjusting member 20 is horizontal, and the guide of the inclined guide member 73 is provided. The inclination angle from the horizontal plane is smaller than that of the surface 73M. Thereby, compared with the case where the contact area is changed by moving the inclined guide member 73, the rear side of the cut sheet group G is prevented from being lifted, and the belt contact amount adjusting member 20 is partially fed by the cut sheet S. It can be easily adjusted to a position where it can be eliminated.

  The cut sheet S extracted from the stock unit 70 enters between the multifeed restricting member 30 and the conveyance belt 63, passes while pushing up the multifeed restricting member 30, and is further forwarded by the downstream conveyer belt 83. Be paid. Here, since the conveyance speed of the downstream conveyance belt 83 can be made larger than the conveyance speed of the conveyance belt 63, the cut sheets S partially overlap each other when the sheet is drawn from the cut sheet group G. The overlap can be eliminated.

  As described above, in the cut sheet feeding device 10 according to the present embodiment, the belt contact amount adjusting mechanism 26 changes the position of the belt contact amount adjusting member 20 in the cut sheet feeding direction to change the conveyance belt 63 and the cut sheet group G. The area of contact with the sheet paper can be adjusted, so that partial overlap feeding can be prevented, or even if it cannot be prevented, the amount of overlap between the cut sheets S can be suppressed, and the overlap between the cut sheets S can be eliminated by post-processing. Therefore, the occurrence of partial double feeding can be reduced as compared with the prior art. In addition, the inclined guide member 73 can disperse the cut sheet S positioned at the lower end of the cut sheet group G so as to be displaced forward, thereby assisting in reducing the occurrence of partial double feeding. In addition, since the tilt guide member 73 can change the position in the cut sheet feeding direction by the tilt guide member variable support mechanism 76, it can cope with the size change of the cut sheet S. Further, in the present embodiment, the belt contact amount adjusting member 20 and the inclined guide member 73 can be independently changed in position, so that the cut sheet is maintained while the position of the inclined guide member 73 corresponding to the size of the cut sheet S is fixed. The contact area between S and the conveyor belt 63 can be changed.

[Second Embodiment]
Hereinafter, a second embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 7, the cut sheet feeding device 10 </ b> W of the present embodiment mainly differs from the belt contact amount adjustment member 20 of the first embodiment in the configuration of the belt contact amount adjustment member 20 </ b> W. Specifically, the belt contact amount adjusting member 20W is a flat surface whose entire upper surface is inclined downward.

  As shown in FIGS. 7 and 8, the belt contact amount adjusting member 20 </ b> W is provided with a plurality of delivery protrusions 25 </ b> W disposed between the adjacent conveyance belts 63, 63, and the rear ends of the plurality of delivery protrusions 25 </ b> W. The cover part 24W which contacted is provided. A plurality of slits 24WS are formed at the rear end of the cover portion 24W, and the triangular plate 74 of the inclined guide member 73W is movable in the front-rear direction within the slit 24WS. Note that the upper surface of the cover 24W is the cut sheet group main support surface 24WM of the present invention, and when viewed from the side, the guide surface 73WM of the inclined guide member 73W is located above the cut sheet group main support surface 24WM. It protrudes (see FIG. 10).

  As shown in FIG. 10, in the transfer protrusion 25W, the upper surface of the rear end portion is located above the rotational contact surface 63M, and the upper surface of the front end portion is located below the rotational contact surface 63M. A portion of the upper surface of the delivery protrusion 25W located above the transport belt 63 is the delivery inclined surface 25WM of the present invention. Further, the delivery section 27W of the present invention is formed from the plurality of delivery protrusions 25W and the plurality of transport belts 63.

  Further, as shown in FIG. 7, brackets 23 and 23 are provided on both sides of the cover portion 24 </ b> W in order to fix the belt contact amount adjusting member 20 </ b> W to the upper surface plate 93. The bracket 23 has an L shape when viewed from the front-rear direction, and the bottom plate 23T is overlapped with the mounting plate 75W of the inclined guide member 73W.

  As shown in FIG. 9, the bottom plate 23T of the bracket 23 is formed with a first guide long hole 20WA extending in the front-rear direction. Further, a second guide long hole 75WA extending in the front-rear direction is also formed through the attachment plate 75W of the inclined guide member 73W. Then, in the state where the first guide long hole 20WA and the second guide long hole 75WA are overlapped, the bolt B penetrating the first guide long hole 20WA and the second guide long hole 75WA is formed in the spiral hole 93N formed in the upper surface plate 93. The belt contact amount adjusting member 20 </ b> W and the inclined guide member 93 </ b> W are fixed to the upper surface plate 93.

  Then, the position of the inclined guide member 73W is selectively adjusted in the front-rear direction according to the size of the cut sheet S by loosening the bolt B and moving the inclined guide member 73W along the second guide long hole 75WA. It is possible. That is, in the present embodiment, the second guide long hole 75WA corresponds to the “second guide” of the present invention, and the bolt B and the spiral hole 93N constitute the “second fixing portion” of the present invention. And the 2nd guide long hole 75WA, the volt | bolt B, and the spiral hole 93N comprise the inclination guide member variable support mechanism 76W of this invention.

  When the belt contact amount adjusting member 20W is moved along the first guide long hole 20WA by loosening the bolt B, the front and rear positions of the belt contact amount adjusting member 20W can be adjusted separately from the inclined guide member 73W. It is possible. That is, in this embodiment, the first guide long hole 20WA corresponds to the “first guide” of the present invention, and the bolt B and the spiral hole 93N constitute the “second fixing portion” of the present invention. The first guide elongated hole 20A, the bolt B, and the spiral hole 93N constitute the belt contact amount adjusting mechanism 26W of the present invention.

  This completes the description of the belt contact amount adjusting member 20W. Further, since the configuration of the other parts in the cut sheet feeding device 10W is the same as the configuration of the cut sheet feeding device 10 of the first embodiment, description thereof is omitted by attaching the same reference numerals. According to the cut sheet feeding device 10W of the present embodiment, the same effects as those of the first embodiment can be obtained.

[Third Embodiment]
Hereinafter, a third embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 11, the cut sheet feeding device 10X of the present embodiment is mainly different from the belt contact amount adjusting member 20W of the second embodiment in the configuration of the belt contact amount adjusting member 20X.

  The belt contact amount adjusting member 20X includes a plurality of belt-like members 40 that are elongated in the front-rear direction, and the belt-like members 40 are connected by a connecting shaft 41 at an intermediate position in the front-rear direction. As shown in FIG. 12, the conveyor belt 63 and the belt-like member 40 are alternately arranged. Further, the cut sheet feeding device 10X includes the inclined guide member 73W of the second embodiment, and the rear portion of the belt-like member 40 is disposed between the adjacent triangular plates 74 of the inclined guide member 73W. The inclined guide member 73W can be fixed at an arbitrary front and rear position by the inclined guide member variable support mechanism 76W described in the second embodiment.

  As shown in FIG. 13, the belt-like member 40 is a flat surface whose entire upper surface is inclined downward, and the rear end of the upper surface of the belt-like member 40 is disposed above the rotational contact surface 63 </ b> M of the conveyor belt 63. On the other hand, the front end is arrange | positioned below the rotation contact surface. Further, the belt-like member 40 is a plate-like delivery protrusion 25X whose rear side portion is configured by a trapezoidal block and whose front side portion is inclined forwardly downward. A portion of the upper surface of the transfer protrusion 25X located above the rotational contact surface 63M constitutes the transfer inclined surface 25XM of the present invention, and a portion of the upper surface of the belt-like member 40 that is behind the transfer inclined surface 25XM is cut. The paper main support surface 24XM is configured. Further, the delivery section 27X of the present invention is formed from the plurality of delivery protrusions 25X and the plurality of transport belts 63.

  As shown in FIG. 11, the outer band members 40, 40 in the width direction of the transport belt 63 are provided with brackets 42, 42 for fixing the band member 40 to the upper surface plate 93. The bracket 42 has the same configuration as the bracket 23 of the second embodiment, and the belt contact amount adjustment member 20X includes the belt contact amount adjustment mechanism 26W described in the second embodiment.

  This completes the description of the belt contact amount adjusting member 20X. Since the other configuration of the cut sheet feeding device 10X is the same as that of the cut sheet feeding device 10W of the second embodiment, the description thereof is omitted by attaching the same reference numerals. According to the cut sheet feeding device 10X of the present embodiment, the same effects as those of the first and second embodiments can be obtained.

[Fourth Embodiment]
In the present embodiment, the belt contact amount adjusting member 20 of the first embodiment is modified. As shown in FIG. 14, the belt contact amount adjusting member 20Y of the present embodiment has a structure in which the front end portion of a horizontal plate is deformed, and a delivery inclined surface 25YM that is inclined forward and downward on the upper surface of the front end portion. Is formed. In addition, of the upper surface of the belt contact amount adjusting member 20Y, a portion on the rear side of the transfer inclined surface 25YM is a cut sheet main support surface 24YM. In detail, the delivery inclined surface 25YM has an elliptical shape in which the shape seen from the side is curved so as to go downward as it goes forward. According to this embodiment, the same effect as the first embodiment can be obtained.

[Other Embodiments]
The present invention is not limited to the embodiments. For example, the embodiments described below are also included in the technical scope of the present invention, and various modifications other than those described below can be made without departing from the scope of the invention. Can be implemented.

  (1) In the first and fourth embodiments, the cut sheet main support surface 24M is horizontal. However, the cut paper main support surface 24M may be inclined forward and downward with respect to the horizontal plane at an angle smaller than the delivery inclined surface 25M.

  (2) In the first to third embodiments, the “delivery unit” of the present invention has a configuration in which a plurality of conveyance belts and delivery protrusions are provided, and these are alternately arranged. There may be a configuration in which only one pair is provided and a transfer protrusion is arranged between the pair of conveying belts, or only one pair of transfer protrusions is provided between the pair of transfer protrusions. A configuration in which a conveyor belt is disposed on the belt may be used.

  (3) Instead of the belt-like member 40 of the third embodiment, a configuration using a plate-like member inclined forward and downward may be used.

(4) The shape of the delivery inclined surface 25YM of the fourth embodiment is not limited to that shown in FIG. 14, for example, the delivery inclined surfaces 25YJ, 25YK, and 25YL shown in FIGS. 15A to 15C. You may do it .

  (5) In the above embodiment, the transport belt 63 and the downstream transport belt 83 are driven by the same drive source, but each may be driven by a separate drive source.

  (6) In the above-described embodiment, the upper surface plate 93 and the rotational contact surface 63M of the conveyor belt 63 are arranged horizontally, but may be inclined so as to descend forward with respect to the horizontal plane. In this case, the cut sheet main support surface may be parallel to the rotation contact surface 63M.

  (7) In the first to fourth embodiments, the belt contact amount adjusting mechanism 26 and the tilt guide member variable support mechanism 76 described in the first embodiment, and the belt contact amount adjusting mechanism described in the second embodiment. 26W and the inclined guide member variable support mechanism 76W may be interchanged.

  (8) The “belt contact amount adjusting mechanism” of the present invention may be configured by a rank and pinion mechanism. Specifically, as shown in FIG. 16, a rack 120A (corresponding to the “first guide” of the present invention) extending in the front-rear direction is formed on the belt contact amount adjusting member 20, and meshes with the rack 120A. The pinion 120B (corresponding to the “first fixing portion” of the present invention) may be provided on the upper surface plate 93. Further, the “belt contact amount adjusting mechanism” of the present invention may be configured by a ball screw mechanism. Specifically, as shown in FIG. 17, a ball screw 121A (corresponding to the “first guide” of the present invention) extending in the front-rear direction is provided, and a ball nut 121B (mainly screwed) with the ball screw 121A is provided. The belt contact amount adjusting member 20 may be configured to correspond to the “first fixing portion” of the invention. Note that the rack and pinion mechanism and the ball screw mechanism may be applied to the tilt guide member variable support mechanism.

  (9) A magnet may be used as the “belt contact amount adjusting mechanism” and the “inclined guide member variable support mechanism” of the present invention. Specifically, in the example of the first embodiment, the lower surface of the belt contact amount adjusting member 20 and the upper surface plate 93, and the upper surface of the belt contact amount adjusting member 20 and the inclined guide member 73 are configured to be coupled with a magnet. The belt contact amount adjusting member 20 and the inclined guide member 73 may be fixed at arbitrary positions in the front-rear direction.

  (10) As shown in FIG. 18A, the first guide rail 122A (corresponding to the “first guide” of the present invention) extending back and forth on the upper surface of the upper surface plate 93 and the belt contact amount adjusting member 20 are moved together. And it is good also as a structure provided with the 1st slide member 122B which can be fixed in arbitrary positions along the 1st guide rail 122A. Specifically, as shown in FIG. 18B, the first slide member has a locking position for locking with the first locking portion 122E formed on the first guide rail 122A, and the first position where the locking is released. A first locking claw 122C that can reciprocate between the first release position and a first spring 122D that urges the first locking claw 122C to the first locking position. In addition, the second guide rail 123B (corresponding to the “second guide” of the present invention) formed on the upper surface of the upper surface plate 93 and extending in the front-rear direction and the inclined guide member 73 move integrally with the second guide rail. The “inclined guide member variable support mechanism” of the present invention may be configured by the second slide member 123B (corresponding to the “second fixing portion” of the present invention) that can be fixed at an arbitrary position along 123A. . The second guide rail 123A and the second slide member 123B have the same configuration as the first guide rail 122A and the first slide member 122B.

  (11) As shown in FIG. 19, the first positioning holes 125A formed in the front-rear direction on the upper surface of the upper surface plate 93 and the first positioning holes 125A that pass through the belt contact amount adjusting member 20 and engage with the first positioning holes 125A. The “belt contact amount adjusting mechanism” of the present invention may be configured by the one positioning pin 125B. Similarly, a second positioning hole 126A formed side by side in the front-rear direction on the upper surface of the upper surface plate 93 and a bracket 127 that moves integrally with the inclined guide member 73, and a second positioning hole 126A that engages with the second positioning hole 126A. The “positioning guide member variable support mechanism” of the present invention may be configured by the two positioning pins 126B.

  (12) As shown in FIG. 20, the belt contact amount adjusting member 20 is provided with an elastic piece 128C (corresponding to the “first spring” of the present invention) whose tip is biased outward, and the elastic piece 128C. A first locking claw 128A that protrudes outward is formed at the tip of the belt, and a plurality of first locking portions 128B that can be engaged with the first locking claw 128A are arranged on the upper surface plate 93 in the front-rear direction to contact the belt. An amount adjusting mechanism may be configured. The configuration of the belt contact amount adjusting mechanism may be applied to the tilt guide member variable support mechanism.

  (13) A clamp may be used as the “belt contact amount adjusting mechanism” and the “inclined guide member variable support mechanism” of the present invention. That is, as shown in FIG. 21, the belt contact amount adjusting member 20, the mounting plate 75 of the tilt guide member 73, and the upper surface plate 93 are sandwiched by the clamp 130, and the belt contact amount adjusting member 20 and the tilt are clamped by the clamp 130. The guide member 73 may be fixed at an arbitrary position in the front-rear direction.

10, 10W, 10X Cut sheet feeding device 20, 20W, 20X, 20Y Belt contact amount adjusting member 20A, 20WA First guide slot (first guide)
24, 24W Cover part 24M, 24WM, 24XM, 24YM Cut paper main support surface 25, 25W, 25X Delivery protrusion 25M, 25WM, 25XM, 25YM, 25YJ, 25YK, 25YL Delivery inclined surface 26, 26W Belt contact amount adjustment mechanism 27 Delivery part 63 Conveying belt 63M Rotating contact surface 73, 73W Inclined guide member 73M, 73WM Guide surface 75A, 75WA Second guide slot (second guide)
76, 76W Inclined guide member variable support mechanism B Bolt (first fixing part, second fixing part)
G Cut paper group N Nut (first fixed part, second fixed part)
S cut paper

Claims (9)

Cut paper feed that feeds the lowermost cut sheet from the cut sheet group sequentially in front of the cut paper feed direction by rotating and contacting the conveyor belt with the lowermost end of the cut paper group stacked up and down In the device
The lower part of the cut sheet group is arranged below the cut sheet group, the rear part from the intermediate position in the cut sheet feeding direction at the lowermost end of the cut sheet group is floated from the transport belt, and the front part from the intermediate position is used as the transport belt. A belt contact amount adjusting member that supports the rotation contact;
A transfer inclined surface that is formed at a front end portion of a portion of the upper surface of the belt contact amount adjusting member that is located above a rotational contact surface with the cut sheet of the conveying belt, and that is inclined forward and downward;
A plurality of the cuts included in the cut sheet group, disposed below the rear end portion of the cut sheet group, projecting upward from the belt contact amount adjusting member and having a guide surface inclined forward and downward. An inclined guide member for shifting paper in the cut paper feeding direction along the guide surface;
An inclined guide member variable support mechanism capable of moving and fixing the inclined guide member to an arbitrary position in the cut sheet feeding direction, and the belt contact amount adjusting member separately from the inclined guide member in the cut sheet feeding direction A cut sheet feeding device comprising: a belt contact amount adjusting mechanism that can be moved and fixed to any position. A cut sheet main support surface formed on a rear side portion of the upper surface of the belt contact amount adjusting member with respect to the delivery inclined surface and having a smaller inclination angle with respect to a horizontal plane than the delivery inclined surface is provided. The cut sheet feeding device according to claim 1 . Cut paper feed that feeds the lowermost cut sheet from the cut sheet group sequentially in front of the cut paper feed direction by rotating and contacting the conveyor belt with the lowermost end of the cut paper group stacked up and down In the device
The lower part of the cut sheet group is arranged below the cut sheet group, the rear part from the intermediate position in the cut sheet feeding direction at the lowermost end of the cut sheet group is floated from the transport belt, and the front part from the intermediate position is used as the transport belt. A belt contact amount adjusting member that is supported so as to be able to rotate and that has a flat surface in which the entire portion that comes into contact with the cut paper group is inclined forward and downward,
A plurality of the cuts included in the cut sheet group, disposed below the rear end portion of the cut sheet group, projecting upward from the belt contact amount adjusting member and having a guide surface inclined forward and downward. An inclined guide member for shifting paper in the cut paper feeding direction along the guide surface;
An inclined guide member variable support mechanism capable of moving and fixing the inclined guide member to an arbitrary position in the cut sheet feeding direction;
A cut sheet feeding mechanism comprising: a belt contact amount adjusting mechanism capable of moving and fixing the belt contact amount adjusting member to an arbitrary position in the cut sheet feeding direction separately from the inclined guide member. apparatus. The belt contact amount adjusting member is disposed on a side of the transport belt, and the upper surface of the front end portion is located below the rotational contact surface with the cut sheet in the transport belt, while the rear A delivery protrusion that is inclined so that the upper surface of the end is positioned above the rotational contact surface;
2. The apparatus according to claim 1, further comprising: a delivery unit configured to arrange the delivery protrusion between the pair of conveyance belts, or to arrange the conveyance belt between the pair of delivery protrusions. The cut sheet feeding device according to any one of claims 1 to 3. 5. The cut sheet feeding according to claim 4, further comprising a cover contact amount adjusting member that has a cover portion that covers the transport belt from above, and that the transfer protrusion protrudes from a front end of the cover portion. apparatus. A first guide that supports the belt contact amount adjusting member so as to be linearly movable in the cut sheet feeding direction, and a first fixing portion that can fix the belt contact amount adjusting member at an arbitrary position along the first guide. The cut sheet feeding device according to any one of claims 1 to 5, further comprising the belt contact amount adjusting mechanism configured by: A plurality of first locking portions formed along the longitudinal direction of the first guide; and a first locking position provided on the belt contact amount adjusting member and locked to an arbitrary first locking portion; A first locking claw capable of reciprocating between a first release position where the locking with the first locking portion is released; and a first locking claw that holds the first locking claw at the first locking position. The cut sheet feeding device according to claim 6, further comprising the first fixing portion configured with one spring. The second guide is configured to support the inclined guide member so as to be linearly movable in the cut sheet feeding direction, and the second fixing portion can fix the inclined guide member at an arbitrary position along the second guide. The cut sheet feeding device according to any one of claims 1 to 7, further comprising a variable support mechanism for the inclined guide member. A plurality of second locking portions formed along the longitudinal direction of the second guide; a second locking position provided on the inclined guide member and locked to any second locking portion; A second locking claw capable of reciprocating between a second releasing position where the locking with the two locking parts is released, and a second spring holding the second locking claw at the second locking position The cut sheet feeding device according to claim 8, wherein the second fixing portion is configured as follows.

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