JP2017075013A - Sheet holder, image formation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a rear end part of an oblong sheet that is supplied to a body part from a sheet supply tray of an image formation device, from being transported in duplicate maner to the body part together with a portion on a tip end side.SOLUTION: A first support part 811 extends, to be formed, upward diagonally on an upper stream side from a frame part on an upper stream side in a sheet supply direction, to support a first intermediate part of an oblong sheet 9 L forming a loop, and a second support part 821 extends, to be formed, upward diagonally on a lower stream side from a frame part on a lower stream side, to support a second intermediate part of the oblong sheet 9 L forming the loop. A third support part 831 supports a part of the oblong sheet 9L from a rear end. The second support part 821 guides movement of the rear end of the oblong sheet at the time when the loop is dissolved.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a sheet holder mounted on a sheet supply tray and an image forming apparatus including the sheet holder.

  In general, an image forming apparatus includes a sheet supply tray that can be used by being tilted outward from a main body portion that encloses an image forming portion. This sheet supply tray is referred to as a manual feed tray.

  The sheet supply tray is supported so as to be rotatable between a storage position along the side surface of the main body and a use position that is tilted outward from the main body. A sheet supplied as an image forming medium into the main body is mounted on the sheet supply tray at the use position.

  Further, the sheet may be a long sheet that is long in the supply direction, for example, a sheet having a width of 297 mm and a length of 1200 mm.

  When the long sheet is supplied to the main body, it is known that a tool for holding a part of the rear end side of the long sheet in a loop forming state is mounted on the sheet supply tray. (For example, refer to Patent Document 1). Hereinafter, the tool is referred to as a sheet holder.

JP 2013-112523 A

  By the way, the remaining one long sheet held by the sheet holder is supplied to the main body, and when the loop is eliminated, the rear end of the long sheet advances into the main body. In some cases, double feeding is performed together with the tip side portion. In this case, the rear end of the long sheet may be clogged with the sheet supply port of the main body.

  An object of the present invention is to provide a sheet holder and an image that can prevent the rear end portion of a long sheet fed from a sheet supply tray of an image forming apparatus to the main body portion from being fed to the main body portion together with the front end portion. It is to provide a forming apparatus.

  A sheet holder according to an aspect of the present invention is a first intermediate portion of a long sheet that is mounted on a sheet supply tray provided in an image forming apparatus, and a part from the front end is placed on the sheet supply tray. It is a tool for holding the portion from the rear end to the rear end in a state of forming a loop. The sheet holder includes a frame, a first support part, a second support part, and a third support part. The frame has a first frame part and a second frame part. The first frame portion is formed to extend in the width direction intersecting the supply direction on the downstream side in the supply direction of the long sheet to the image forming apparatus. The second frame portion is formed to extend in the width direction on the upstream side in the supply direction. The first support part is formed to extend obliquely upward on the upstream side in the supply direction from the second frame part, and supports the first intermediate part of the long sheet forming the loop. The second support portion is formed to extend obliquely upward on the downstream side in the supply direction from the first frame portion, and is formed between the first intermediate portion and the rear end of the long sheet forming the loop. The second intermediate part in between is supported. The third support portion is formed to extend obliquely upward on the upstream side in the supply direction from the first frame portion, and supports a part from the rear end of the long sheet forming the loop. The second support part guides the movement of the rear end of the long sheet when the long sheet is supplied into the image forming apparatus and the loop is eliminated.

  An image forming apparatus according to another aspect of the present invention includes a sheet supply tray and the sheet holder. The sheet supply tray is supported so as to be rotatable between a storage position along a side surface of the main body portion including the image forming portion and a use position that is tilted outward from the main body portion. The sheet supply tray is a portion on which a sheet to be supplied into the main body at the use position is placed. The sheet holder is mounted on the sheet supply tray when a long sheet is supplied to the main body.

  According to the present invention, a sheet holder and an image that can prevent the rear end portion of a long sheet supplied from the sheet supply tray of the image forming apparatus to the main body portion from being fed to the main body portion together with the front end portion. A forming apparatus can be provided.

FIG. 1 is a configuration diagram of an image forming apparatus including a sheet holder according to the embodiment. FIG. 2 is a perspective view of the sheet holder set on the sheet supply tray. FIG. 3 is a perspective view of the sheet holder according to the embodiment. FIG. 4 is a side view of the sheet holder set on the sheet supply tray. FIG. 5 is a side view of a sheet holder that holds one long sheet. FIG. 6 is a side view of a sheet holder that holds a long sheet being supplied. FIG. 7 is a side view of a conventional sheet holder that holds one long sheet. FIG. 8 is a side view of a conventional sheet holder that holds a long sheet being supplied.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the following embodiment is an example which actualized this invention, Comprising: It does not have the character which limits the technical scope of this invention.

[Image forming apparatus 10]
First, the configuration of the image forming apparatus 10 including the sheet holder 1 according to the embodiment will be described with reference to FIG. The image forming apparatus 10 is an electrophotographic image forming apparatus that forms an image on a sheet 9. The sheet 9 is a sheet-like image forming medium such as paper, coated paper, postcard, envelope, and OHP sheet.

  The image forming apparatus 10 includes a sheet supply unit 2 below the main body unit 100. Further, the image forming apparatus 10 includes a sheet conveying mechanism 3 and an image forming unit 4. The main body 100 includes the sheet conveying mechanism 3 and the image forming unit 4. Further, the image forming apparatus 10 includes an image reading device 5 above the main body 100.

  The sheet supply unit 2 includes a sheet cassette 21 and a sheet delivery unit 22. The sheet cassette 21 accommodates the sheet 9. The sheet sending unit 22 sends the sheet 9 from the sheet cassette 21 to the sheet conveyance path 300.

  In the sheet transport mechanism 3, the transport roller 31 transports the sheet 9 along the sheet transport path 300.

  The image forming unit 4 includes a photoreceptor 41, a charging unit 42, a developing unit 43, a transfer unit 45, a cleaning unit 47, an optical scanning unit 48, a fixing unit 49, and the like. The drum-shaped photoconductor 41 rotates, and the charging unit 42 charges the surface of the photoconductor 41 uniformly.

  The optical scanning unit 48 writes an electrostatic latent image on the surface of the photoreceptor 41 by emitting laser light. The developing unit 43 develops the electrostatic latent image with toner. As a result, a toner image is formed on the surface of the photoreceptor 41.

  The transfer unit 45 transfers the toner image on the surface of the photoconductor 41 to the sheet 9 moving on the sheet conveyance path 300. The cleaning unit 47 removes the toner remaining on the surface of the photoreceptor 41. The fixing unit 49 heats the sheet 9 after image formation to fix the toner image on the sheet 9. The conveyance roller 31 discharges the sheet 9 after image formation to the discharge tray 101.

  The image forming apparatus 10 further includes a sheet supply tray 20. The sheet supply tray 20 is supported so as to be rotatable between a storage position along the side surface of the main body 100 and a use position tilted outward from the main body 100.

  When the sheet supply tray 20 is present at the use position, the sheet 9 supplied into the main body 100 is placed on the sheet supply tray 20. The sheet supply tray 20 is formed with a sheet placement surface 200 on which the sheet 9 is placed. The sheet supply tray 20 is a so-called manual feed tray.

  A sheet feeding unit 23 is provided in a portion of the sheet supply port 102 in the main body unit 100. The sheet supply port 102 is formed at the base portion of the sheet supply tray 20. The sheet delivery unit 23 sends out the sheet 9 placed on the sheet supply tray 20 to the sheet conveyance path 300.

  In FIG. 1, the sheet supply tray 20 at the storage position is indicated by a two-dot chain line, and the sheet supply tray 20 at the use position is indicated by a solid line.

  The sheet 9 placed on the sheet supply tray 20 may be a long sheet 9L. The long sheet 9L is a sheet that is long in the supply direction, for example, a sheet having a width of 297 mm and a length of 1200 mm.

  In each drawing, a first direction D1 is a supply direction of the sheet 9 supplied from the sheet supply tray 20 into the main body 100. That is, the sheet 9 such as the long sheet 9L is supplied from the sheet supply tray 20 into the main body 100 in the first direction D1.

  A sheet delivery unit 22 provided at the base portion of the sheet supply tray 20 sends out the sheet 9 on the sheet supply tray 20 to the sheet conveyance path 300 through the sheet supply port 102 of the main body 100.

  In each figure, the second direction D2 is the opposite direction of the first direction D1. In the following description, the second direction D side means the same as the upstream side in the first direction D1. Moreover, in each figure, the horizontal direction which cross | intersects the 1st direction D1 and the 2nd direction D2 is shown as the width direction D3. For example, the width direction D3 is a direction orthogonal to the first direction D1 and the second direction D2.

  In the image forming apparatus 10, the sheet placement surface 200 of the sheet supply tray 20 is inclined at an acute angle with respect to the horizontal plane. Therefore, the first direction D1 is obliquely downward on the main body 100 side.

  The sheet holder 1 is mounted on the sheet supply tray 20 when the long sheet 9 </ b> L is supplied to the main body 100. The sheet holder 1 is a tool that holds a part of the rear end side of the long sheet 9 </ b> L in a loop shape on the sheet supply tray 20.

  By the way, as shown in FIGS. 7 and 8, the conventional sheet holder 90 also holds a part of the long sheet 9L on the rear end 9e side in a state of forming a loop. 7 and 8, the sheet holder 90 includes two arm portions 91 and 92 that support a part of the long sheet 9L from below.

  The two arm portions 91 and 92 are both formed to extend obliquely upward on the second direction D2 side. When the conventional sheet holder 90 is used, the remaining one long sheet 9L held by the sheet holder 90 is supplied to the main body 100, and when the loop is eliminated, The end 9e may be double-fed together with the portion on the tip 9f side that proceeds into the main body 100 (see FIG. 8). In this case, the rear end 9e of the long sheet 9L may be clogged with the sheet supply port 102 of the main body 100.

  On the other hand, when the sheet holder 1 according to the present embodiment is employed, the rear end 9e of the long sheet 9L supplied from the sheet supply tray 20 to the main body 100 overlaps the main body 100 together with the portion on the front end 9f side. It can be prevented from being sent.

[Sheet holder 1]
Hereinafter, the sheet holder 1 will be described with reference to FIGS. The sheet holder 1 includes a frame body 6, a first sheet support portion 81, a second sheet support portion 82, and a third sheet support portion 83. Further, in the present embodiment, the sheet holder 1 further includes two slide limiters 7.

  The frame body 6 is a member that is mounted on a portion of the sheet supply tray 20 on the second direction D2 side. For example, the frame 6 is a synthetic resin molded member.

  The sheet supply tray 20 includes a pair of shaft portions 24, a pair of side wall portions 25, and a pair of slide guides 26. The pair of shaft portions 24 are portions that are rotatably supported by the main body portion 100. Thereby, the sheet supply tray 20 can be rotated around the shaft portion 24.

  The pair of side wall portions 25 are portions formed to stand on both sides of the sheet placement surface 200 of the sheet supply tray 20. The pair of side wall portions 25 are portions that support the sheet holder 1 placed on the sheet supply tray 20.

  The pair of slide guides 26 are formed upright with respect to the sheet placement surface 200, and are supported so as to be slidable along the width direction D3. The pair of slide guides 26 are stopped at positions along both ends in the width direction D3 of the sheet 9 such as the long sheet 9L placed on the sheet placement surface 200 by the user's operation. Accordingly, the pair of slide guides 26 restricts the movement of the sheet 9 placed on the sheet placement surface 200 in the width direction D3. That is, the pair of slide guides 26 has a function of positioning the sheet 9 in the width direction D3.

  The sheet holder 1 supports the long sheet 9 </ b> L together with the sheet supply tray 20 by being mounted on the sheet supply tray 20.

  An opening 60 is formed in the frame body 6. A part of the long sheet 9 </ b> L from the leading end 9 f is inserted into the opening 60 along the sheet placement surface 200 of the sheet supply tray 20. At that time, the leading end 9f of the long sheet 9L is set at a predetermined supply start position on the sheet placing surface 200.

  The frame body 6 has a frame portion surrounding the four sides of the opening 60. The frame part includes a first frame part 61, a second frame part 62, and a pair of third frame parts 63. The first frame portion 61 and the second frame portion 62 are each formed to extend along the width direction D3.

  The first frame portion 61 is a portion on the first direction D1 side with respect to the opening 60. The second frame portion 62 is a portion on the second direction D2 side with respect to the opening 60. The pair of third frame portions 63 are portions on both sides of the opening 60. That is, the pair of third frame portions 63 are portions on one end side and the other end side in the width direction D3 with respect to the opening 60.

  As shown in FIGS. 2 and 3, the pair of third frame parts 63 are formed with supported parts 64 that are supported by the pair of side wall parts 25 of the sheet supply tray 20.

  The first frame portion 61 is formed from one side of the pair of third frame portions 63 to the other side along the width direction D3 above the sheet placement surface 200. That is, the first frame portion 61 is formed along the width direction D3 with respect to the sheet placement surface 200 with a gap 600 forming a passage for the long sheet 9L.

  A space extending from the opening 60 to the gap 600 below the first frame portion 61 forms a passage for the long sheet 9L. A part of the long sheet 9 </ b> L from the front end 9 f is inserted into the gap 600 through the opening 60 of the frame body 6 and is placed on the sheet placement surface 200 of the sheet supply tray 20. The long sheet 9L is placed on the sheet placement surface 200 with its leading end 9f aligned with the supply start position.

  The two slide restrictors 7 are attached to the frame body 6 to restrict the movement of the pair of slide guides 26 in the width direction D3 to the outside. Note that the movement of the pair of slide guides 26 inward in the width direction D <b> 3 is limited by the seat 9.

  Each slide limiter 7 includes a restriction piece 71 and a fixture 72. The restricting piece 71 is fixed to the frame 6 at a position in contact with the side edge of the sheet 9. Thereby, the regulation piece 71 prevents the slide guide 26 from moving outward in the width direction D3. The fixing tool 72 fixes the regulating piece 71 to the first frame portion 61 at an arbitrary position within a predetermined range in the width direction D3. A pair of long holes 610 are formed in the first frame portion 61 of the frame body 6 along the width direction D3.

  The fixture 72 passes through the regulation piece 71 and is inserted into the long hole 610. The fixing tool 72 fixes the restriction piece 71 at an arbitrary position along the long hole 610 in the first frame portion 61. The fixture 72 is locked when rotated in one direction, and is unlocked when rotated in the other direction.

  The locked state is a state in which the restricting piece 71 is fixed to the first frame portion 61. The unlocked state is a state where the fixing of the restriction piece 71 to the first frame portion 61 is released. The fixing tool 72 is movable along the long hole 610 in the unlocked state.

  The restricting piece 71 is formed with a restricting portion 710 protruding downward. In the pair of restricting pieces 71, the restricting portion 710 is a portion that contacts each of the pair of slide guides 26 from the outside in the width direction D3.

  The two restricting pieces 71 are fixed to the first frame portion 61 by the fixing tool 72 at a position where the restricting portion 710 is in contact with the outer surface of the pair of slide guides 26 in the width direction D3.

  In the sheet holder 1, the first sheet support portion 81 is supported by the frame body 6. In the present embodiment, the first sheet support portion 81 has two first supported portions 810 that are fixed to the second frame portion 62.

  As shown in FIGS. 2, 4, 5, and the like, the first sheet support portion 81 further includes a first support portion 811 that supports a part of the long sheet 9L from below. The first support portion 811 is formed to extend obliquely upward on the second direction D2 side from the first position 8a on the second direction D2 side relative to the opening 60 in the frame body 6. The first support portion 811 supports the first intermediate portion 9ma of the long sheet 9L that forms a loop (see FIG. 5). The first intermediate portion 9ma is a portion of the long sheet 9L that extends obliquely upward on the second direction D2 side from the opening 60 of the frame body 6.

  The second sheet support portion 82 is also supported by the frame body 6. In the present embodiment, the second sheet support portion 82 has two second supported portions 820 that are fixed to the first frame portion 61.

  As shown in FIGS. 2, 4, 5 and the like, the second sheet support portion 82 further includes a second support portion 821 that supports a part of the long sheet 9L from below. The second support portion 821 is formed to extend obliquely upward on the first direction D1 side from the second position 8b on the first direction D1 side relative to the opening 60 in the frame body 6. The second support portion 821 supports the second intermediate portion 9mb of the long sheet 9L that forms a loop (see FIG. 5). The second intermediate portion 9mb is a portion between the first intermediate portion 9ma and the rear end 9e in the long sheet 9L.

  The third sheet support portion 83 is also supported by the frame body 6. In the present embodiment, the third sheet support portion 83 has two third supported portions 830 that are fixed to the pair of third frame portions 63. It is also conceivable that the two third supported portions 830 are supported by the first frame portion 61.

  As shown in FIGS. 2, 4, 5, and the like, the third sheet support portion 83 includes a third support portion 831 that supports a part of the long sheet 9L from below. The third support portion 831 is formed to extend obliquely upward on the second direction D2 side from the third position 8c near the second position 8b between the first position 8a and the second position 8b in the frame 6. . The third support portion 831 is formed with a stopper 832 for pressing the rear end of the long sheet 9L. The third support portion 831 supports a part from the rear end 9e of the long sheet 9L that forms a loop (see FIG. 5).

  In the example shown in FIG. 5, the first support portion 811 is formed to extend obliquely upward from a position higher than the second support portion 821 and the third support portion 831. In addition, the second support portion 821 and the third support portion 831 are formed to extend obliquely upward on the opposite side from positions having the same height.

  As shown in FIG. 5, a part of the long sheet 9L from the front end 9f is inserted from the opening 60 of the frame body 6 and placed on the sheet supply tray 20, and the remaining part of the long sheet 9L is It is held by the sheet holder 1. The first support portion 811, the second support portion 821, and the third support portion 831 form a loop in a portion on the rear end 9e side of the portion 9m passing through the opening 60 of the frame 6 in the long sheet 9L. Hold on.

  The path of the loop is reversed to the first direction D1 side via the first support part 811 and further reversed to the second direction D2 side via the second support part 821 and the third support. This is a route leading up to the part 831.

  The first support portion 811 supports, from below, a portion between the portion 9m that penetrates the opening 60 of the frame body 6 and the portion that reverses from the second direction D2 to the first direction D1 in the long sheet 9L. The third support portion 831 supports a part of the long sheet 9L from the rear end 9e from below. Therefore, the rear end 9e of the long sheet 9L curved along the curved path faces obliquely upward on the second direction D2 side.

  The stopper 832 is formed so as to protrude obliquely upward from the end portion of the third support portion 831 on the first direction D1 side. The stopper 832 contacts the rear end 9e of the long sheet 9L and prevents the rear end 9e from protruding from the third support portion 831 to the second direction D2.

  In the present embodiment, the first sheet support part 81, the second sheet support part 82, and the third sheet support part 83 are metal bent bar-like members. Each of the first supported portion 810, the second supported portion 820, and the third supported portion 830 is the both end portions of the rod-like member, and is fitted into a hole formed in the frame body 6 to thereby form a frame. It is fixed to the body 6.

  Each of the first support portion 811, the second support portion 821, and the third support portion 831 is an intermediate portion of the rod-shaped member.

  The interval between the two first supported portions 810, the interval between the two second supported portions 820, and the interval between the two third supported portions 830 are different. Thereby, when the sheet holder 1 is assembled, errors in the attachment positions of the first sheet support part 81, the second sheet support part 82, and the third sheet support part 83 are prevented.

  As shown in FIG. 4, the sheet placement surface 200 of the sheet supply tray 20 is inclined obliquely upward in the second direction D2 at an angle θ0 with respect to the horizontal plane.

  In a state where the frame body 6 is mounted on the sheet supply tray 20, the first support portion 811 and the third support portion 831 extend obliquely upward from the frame body 6 at the same first angle θ1 with respect to the horizontal plane. Is formed. Further, in a state where the frame body 6 is mounted on the sheet supply tray 20, the second support portion 821 forms a second angle θ <b> 2 smaller than the first angle θ <b> 1 with respect to the horizontal plane and obliquely above the frame body 6. It is formed to extend to.

  The angles θ0, θ1, and θ2 are acute angles. For example, it is conceivable that θ1 is about 20 to 30 degrees. Further, it is conceivable that θ2 is about 5 to 15 degrees. Further, it is conceivable that θ0 is about 5 to 10 degrees. The first angle θ1 and the second angle θ2 are examples of the first acute angle and the second acute angle, respectively.

  In the present embodiment, each of the first support portion 811, the second support portion 821, and the third support portion 831 is formed with the same acute angle with respect to the sheet placement surface 200. That is, (θ1−θ0) = (θ2 + θ0).

  The first support portion 811, the second support portion 821, and the third support portion 831 are formed at an angle as described above with respect to the horizontal plane, so that the long sheet 9L is stable and the sheet holder 1 is supported.

  Further, as shown in FIG. 3, the width W2 of the second support portion 821 in the width direction D3 is larger than the width W1 of the first support portion 811 in the same direction and the width W3 of the third support portion 831 in the same direction. . Accordingly, the load of the long sheet 9L that is biased toward the first direction D1 by the force received from the first support portion 811 and the third support portion 831 is stably received by the wide second support portion 821.

  Further, as shown in FIG. 4, the extension length L1 of the first support portion 811 and the extension length L2 of the second support portion 821 are longer than the extension length L3 of the third support portion 831. Each extending length L1, L2, L3 is the length of a portion extending obliquely upward from the frame body 6. Accordingly, the long sheets 9L having various lengths are stably held in a curved shape by the three support portions 811, 821, and 831.

  FIG. 5 shows a state in which the sheet holder 1 holds one long sheet 9L. However, when a plurality of long sheets 9L are continuously supplied to the main body 100, the sheet holder 1 holds the plurality of overlapping long sheets 9L in a state along the curved path.

  Further, as shown in FIG. 6, when the remaining one long sheet 9L held by the sheet holder 1 is supplied to the main body 100, the rear end 9e of the long sheet 9L has a third support. It moves away from the part 831 and moves in the first direction D1. When the long sheet 9L is supplied into the image forming apparatus 10 and the loop is eliminated, the second support portion 821 guides the movement of the rear end 9e of the long sheet 9L. Accordingly, the second support portion 821 prevents the rear end 9e of the long sheet 9L from coming into contact with the portion on the front end 9f side. In other words, the second support portion 821 prevents the rear end 9e of the long sheet 9L from being double fed together with the portion on the front end 9f side that advances into the main body portion 100.

[Application example]
In the sheet holder 1, the frame body 6, the first support portion 811, the second support portion 821, and the third support portion 831 may be a synthetic resin integral molding member. In this case, it can be considered that the first support portion 811, the second support portion 821, and the third support portion 831 are portions formed in an inclined plate shape.

  The sheet holder and the image forming unit according to the present invention can be freely combined with the embodiments and application examples described above or within the scope of the invention described in each claim. It is also possible to configure by appropriately modifying or omitting a part.

1: Sheet holder 2: Sheet supply unit 3: Sheet conveyance mechanism 4: Image forming unit 5: Image reading device 6: Frame body 7 of sheet holder: Slide limiter 8a: First position 8b: Second position 8c: Third position 9: sheet 9L: long sheet 9e: trailing end 9f of long sheet: leading edge 9ma of long sheet: first intermediate part 9mb of long sheet: second intermediate part 10 of long sheet: image formation Apparatus 20: Sheet supply tray 21: Sheet cassette 22, 23: Sheet feeding section 24: Supported section of sheet supply tray 25: Side wall section of sheet supply tray 26: Slide guide 31 of sheet supply tray: Conveying roller 41: Photoconductor 42: charging unit 43: developing unit 45: transfer unit 47: cleaning unit 48: light scanning unit 49: fixing unit 60: frame body opening 61: first frame unit 62 of frame body: second frame unit of frame body 3: Frame third frame portion 64: Frame supported portion 71: Restriction piece 72: Fixing tool 81: First sheet support portion 82: Second sheet support portion 83: Third sheet support portion 100: Body portion 101: discharge tray 102: sheet supply port 200: sheet placement surface 300: sheet conveyance path 600: gap 610: slot 710: restriction part 810: first supported part 811: first support part 820: second supported Part 821: second support part 830: third supported part 831: third support part 832: stopper

Claims (5)

A state in which a loop is formed from the first intermediate portion to the rear end of a long sheet that is mounted on a sheet supply tray provided in the image forming apparatus and a part from the front end is placed on the sheet supply tray. A sheet holding tool held by
A first frame portion extending in the width direction intersecting the supply direction on the downstream side in the supply direction of the long sheet to the image forming apparatus, and extending in the width direction on the upstream side in the supply direction. A frame having a second frame portion formed;
A first support portion that extends from the second frame portion toward the upper oblique side in the supply direction and supports the first intermediate portion of the long sheet that forms the loop; and
A second intermediate portion between the first intermediate portion and the rear end of the long sheet formed from the first frame portion extending obliquely upward on the downstream side in the supply direction and forming the loop. A second support part for supporting;
A third support part that extends from the first frame part obliquely upward on the upstream side in the supply direction and supports a part from the rear end of the long sheet that forms the loop; and
The second support portion is a sheet holder that guides the movement of the rear end of the long sheet when the loop is eliminated by supplying the long sheet into the image forming apparatus. In the state where the frame is mounted on the sheet supply tray,
The first support part and the third support part are formed to extend obliquely upward at the same first acute angle with respect to a horizontal plane,
2. The sheet holder according to claim 1, wherein the second support portion is formed to extend obliquely upward with a second acute angle smaller than the first acute angle with respect to a horizontal plane.   The sheet holder according to claim 1 or 2, wherein a dimension in the width direction of the second support part is larger than a dimension in the width direction of the first support part and the third support part.   The sheet holder according to any one of claims 1 to 3, wherein the first support part and the second support part have a longer length extending from the frame body than the third support part. . A sheet that is rotatably supported between a storage position along a side surface of the main body part that encloses the image forming unit and a use position that is tilted outward from the main body part, and is supplied into the main body part at the use position. A sheet supply tray on which a sheet placement surface to be placed is formed;
An image forming apparatus comprising: the sheet holder according to claim 1, which is mounted on the sheet supply tray when a long sheet is supplied to the main body.

Images