JP7438765B2 - Sheet feeding device, image reading device, and image forming device - Google Patents

Description

The present invention relates to a sheet feeding device that feeds sheets, and an image reading device and an image forming device equipped with the same.

Conventionally, automatic document feeders (ADF) have been used as image forming devices such as multifunction devices, which separate and feed paper from a feed tray, read the image on the paper, and then eject it to an output tray. A configuration is known. When reading an image using an ADF, it is necessary to transport the paper to an appropriate position in the width direction perpendicular to the paper feeding direction. On the other hand, Patent Document 1 discloses a configuration including a pair of side regulating plates that regulate the position of the paper on the feeding tray so that the image on the paper can be read at a desired position.

Japanese Patent Application Publication No. 2007-217086

When the position of the paper in the width direction is regulated using the configuration disclosed in Patent Document 1, the left edge registration of the read paper may deviate from the desired position due to variations in component dimensions or assembly of the image forming apparatus. be. The "left edge registration" refers to the position of the left edge of the read paper image in the width direction. In Patent Document 1, an adjustment mechanism is provided inside the feeding tray to adjust the relative position of the feeding tray and the side regulating plate. Therefore, in order to adjust the position of the paper to be conveyed, the feeding tray must be disassembled, which poses a problem in that workability is reduced.

The present invention has been made to solve the above problems, and an object of the present invention is to enable easy adjustment of the position of a side regulating plate provided on a feeding tray.

In order to solve the above-mentioned problems, the present invention provides a sheet feeding device, an image reading device, and an image forming device including the same, including a sheet supporting member having a sheet supporting surface that supports a sheet, and a sheet supporting member that is supported by the sheet supporting member. a sheet feeding means that feeds the sheets fed by the sheet feeding means, a sheet ejecting means that ejects the sheets fed by the sheet feeding means in the ejecting direction, and a sheet ejecting surface that supports the sheets ejected by the sheet ejecting means. a pair of regulating members provided on the sheet supporting surface; and a mounting member provided on the back surface of the sheet supporting member opposite to the sheet supporting surface, an interlocking mechanism that moves one of the pair of regulating members in conjunction with the movement of the other regulating member in the width direction perpendicular to the direction; and an interlocking mechanism that adjusts the position of the interlocking mechanism in the width direction, and an adjusting and fixing means for fixing the attachment member in a state where the position of the interlocking mechanism is adjusted; and a cover member disposed to face the sheet ejection surface and covering the interlocking mechanism, the cover member comprising: It is characterized in that it has a through hole that exposes the adjustment and fixing means.

According to the present invention, the position of the side regulating plate provided on the feeding tray can be easily adjusted.

1 is an overall configuration diagram of an image forming apparatus according to a first embodiment of the present disclosure. 1 is a schematic perspective view of an image reading device according to a first embodiment. 1 is a schematic cross-sectional view of an image reading device according to a first embodiment. FIG. 3 is a schematic perspective view (A, B) of the feeding tray of Example 1. Schematic diagrams (A, B) of the adjustment unit of Example 1. FIG. 3 is a diagram showing a state in which the feeding tray is rotated in the sheet feeding device of the first embodiment. FIG. 3 is a diagram showing an interlocking mechanism of side regulating plates of the sheet feeding device of the first embodiment. FIG. 7 is a diagram showing the relationship between the second rib and the through hole of Example 1. FIG. 3 is a diagram showing the relationship between the first rib, the knob, and the through hole of Example 1.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the following description, an image forming apparatus 200 including an electrophotographic image forming section 200A as an image forming means is taken as an example, but the image forming apparatus 200 may also be provided with an image forming means other than an electrophotographic method such as an inkjet method. A configuration similar to that described below can be applied.

First, a schematic configuration of an image forming apparatus 200 according to a first embodiment will be described with reference to FIG. FIG. 1 is a schematic configuration diagram of an image forming apparatus 200 including an automatic document feeder (hereinafter referred to as ADF 300) that constitutes a sheet feeding apparatus according to a first embodiment. The image forming apparatus 200 includes an apparatus main body 202, a feeding cassette 203 containing sheets as recording media, and an image reading device 201 for reading images of originals. The feeding cassette 203 is arranged below the apparatus main body 202, and the image reading device 201 is arranged above the apparatus main body 202. The image forming device 200 is, for example, a facsimile device, a printer, a multifunction device, or the like that includes the image reading device 201.

The apparatus main body 202 includes an image forming section 200A as an image forming means for forming an image on a sheet. The feeding cassette 203 is configured to include feeding means for feeding the stored sheets toward the image forming section 200A. Further, above the apparatus main body 202, an image reading device 201 including a CCD or the like for reading images on a sheet is arranged. The image reading device 201 includes an ADF 300 as a sheet feeding device that transports sheets toward a reading means such as a CCD. A space is provided between the image reading device 201 and the device main body 202 as a main body ejecting section 204 from which sheets conveyed by the device main body 202 are ejected and stacked. The image forming section 200A is an electrophotographic print engine, and includes a laser writing section, an electrophotographic processing section, a fixing section, etc. (not shown). The feeding cassette 203 is provided with a feeding roller (not shown) that separates and feeds the stored sheets toward the image forming section 200A.

Next, the schematic configuration of the ADF 300 and the reader 301 that constitute the image reading device 201 will be described. FIG. 2 is a schematic perspective view of the image reading device 201. The image reading device 201 includes a reader 301 that reads images on sheets, and an ADF 300 that separates and conveys sheets one by one from a plurality of sheets toward the reader 301. The ADF 300 includes a feed tray 302 that supports a sheet that is a document to be fed, and an ejection tray 303 that serves as ejection sheet support means that supports a sheet that is conveyed from the feed tray 302 and is ejected. . A reader 301 is provided below the ADF 300 as an image reading means for reading images of sheets conveyed by the ADF 300 or reading images of thick sheets such as books placed by opening and closing the ADF 300. It is being

Next, the internal structure of the image reading device 201 will be explained. FIG. 3 is a schematic cross-sectional view of the image reading device 201. The ADF 300 includes a pickup roller 401 and a separation roller 402 to separate and feed sheets one by one from a plurality of sheet bundles 400 supported on a feeding tray 302. The sheet feeding means of this embodiment is composed of a pickup roller 401 and a separation roller 402. When the pickup roller 401 comes into contact with the upper surface of the sheet bundle 400 and rotates, the sheets are picked up from the sheet bundle 400 toward the separation roller 402, and the separation roller 402 separates the sheets one by one and feeds the sheets. Ru. The ADF 300 includes a pull-out roller 403 that conveys the sheet fed from the separation roller 402, a first lead roller 404, a second lead roller 405, and a discharge roller 406.

The sheet separated and fed by the separation roller 402 is conveyed in the sheet feeding direction to a pull-out roller 403, a first lead roller 404, a second lead roller 405, and a discharge roller 406 in this order, and is discharged to a discharge tray 303. Ru. The pulling roller 403 is a roller for pulling out the sheet conveyed from the separation roller 402. The sheet conveyed by the pull-out roller 403 is conveyed by a first lead roller 404 and a second lead roller 405, an image on the sheet is read, and the sheet is discharged onto the discharge tray 303 by a discharge roller 406 serving as a sheet discharge unit.

As described above, below the ADF 300, the reader 301 is provided, which includes the first reading means 409 and the second reading means 410 as image reading means for reading the image on the sheet. A first reading unit 409 reads an image on the surface of a sheet conveyed by the ADF 300 through a scanning glass 407 or reads an image on a sheet supported on a document platen glass 408 . When reading an image on the surface of a sheet conveyed by the ADF 300, the first reading unit 409 stands still at a position facing the panning glass 407 (the position shown in FIG. 3). On the other hand, when reading an image on a sheet supported on the document platen glass 408, the first reading means 409 moves in the direction of arrow RD in FIG. 3 on a rail (not shown) provided inside the reader 301. Do a read. Further, inside the ADF 300, a second reading unit 410 is arranged to read an image on the back side of the conveyed sheet. The second reading means 410 is arranged at a position facing the first reading means 409. In this way, the first reading means 409 and the second reading means 410 are disposed facing each other at a position between the first lead roller 404 and the second lead roller 405 in the sheet transport direction, so that the sheet can be transported easily. It is possible to read images on both the front and back sides of the sheet.

Next, the configuration of the feeding tray 302 will be explained. FIG. 4A is a schematic perspective view of the feed tray 302 viewed from the sheet support surface 500A on which sheets are supported. FIG. 4(B) is a schematic perspective view of the feed tray 302 viewed from the back surface opposite to the sheet support surface 500A. As shown in FIGS. 4A and 4B, the feed tray 302 faces an upper structure 500 serving as a sheet support member having a sheet support surface 500A that supports sheets, and a discharge tray 303 (see FIG. 3). The lower structure 100 is arranged as follows. The upper structure 500 is provided with a mechanism that regulates the position of the end of the sheet S supported by the sheet support surface 500A in the direction perpendicular to the conveyance direction of the sheet S (width direction W: see FIG. 4(A)). Side regulating plates 501A and 501B are provided. Hereinafter, when there is no need to distinguish between the side regulating plates 501A and 501B, they will be referred to as "side regulating plates 501." A pair of regulating members in this embodiment is a side regulating plate 501.

As shown in FIG. 7, a mounting portion 103, a pair of rack gears 900A and 900B, and a pinion gear 901 are provided on a back surface 500B of the upper structure 500 that is opposite to the seat support surface 500A. The attachment portion 103 as the attachment member of this embodiment is attached to the back surface 500B of the upper structure 500, which is the opposite side of the seat support surface 500A, so as to be movable in the width direction W. A pair of rack gears 900A and 900B and a pinion gear 901 are attached to the back surface 500B by an attachment portion 103. Further, the mounting portion 103 is provided with an adjustment unit 130 for adjusting and fixing the positions of the pair of rack gears 900A and 900B and the pinion gear 901 in the width direction W. Details of the adjustment unit 130 will be described later. The pinion gear 901 is a gear that meshes with a pair of rack gears 900A and 900B. Rack gears 900A, 900B and pinion gear 901 arranged on back surface 500B are covered by lower structure 100 as a cover member.

As shown in FIG. 4(A), the rack gear 900A is connected to the side regulating plate 501A via a groove provided in the upper structure 500. Further, as shown in FIG. 4(A), the rack gear 900B is connected to the side regulating plate 501B via a groove provided in the upper structure 500. With such a configuration, the side regulating plate 501B moves in conjunction with the movement of the side regulating plate 501A. For example, when the side regulating plate 501A is moved in the W1 direction in FIG. 4(A), the rack gear 900A is also moved in the W1 direction. The movement of the rack gear 900A causes the pinion gear 901 to rotate, and the rotation of the pinion gear 901 causes the rack gear 900B to move in the W1' direction in FIG. 4(A). Since the side regulating plate 501B is connected to the rack gear 900B, it moves in the W1' direction in FIG. 4(A) as the rack gear 900B moves.

Further, for example, when the side regulating plate 501A is moved in the W2 direction in FIG. 4(A), the rack gear 900A is also moved in the W2 direction. The movement of the rack gear 900A causes the pinion gear 901 to rotate, and the rotation of the pinion gear 901 causes the rack gear 900B to move in the W2' direction in FIG. 4(A). Since the side regulating plate 501B is connected to the rack gear 900B, it moves in the W2' direction in FIG. 4(A) as the rack gear 900B moves. In other words, the interlocking mechanism of this embodiment is composed of the mounting portion 103, rack gears 900A, 900B, and pinion gear 901, and the interlocking mechanism of the present embodiment is composed of the mounting portion 103, rack gears 900A, 900B, and pinion gear 901. , 501A moves. Note that the W1 direction, W1' direction, W2 direction, and W2' direction in FIG. 4(A) are all directions parallel to the width direction W and orthogonal to the sheet feeding direction FD.

Note that a structure may be adopted in which the upper structure 500 and the lower structure 100 are integrally formed so that a space is formed inside the feeding tray 302. In this case, the rack gears 900A, 900B and the pinion gear 901 are both arranged in the internal space of the feeding tray 302, and are attached to the back surface 500B of the upper structure 500 by the attachment portion 103.

Further, the upper structure 500 is provided with a rotation shaft 502 that rotatably supports the feeding tray 302 (see FIGS. 4A and 4B). In the ADF 300 in the state shown in FIG. 2, when the feed tray 302 is rotated in the direction of arrow RT, the state shown in FIG. 6 is reached, and the angle formed by the ejection tray 303 and the lower structure 100 increases. This allows the user to access the upstream side of the lower structure 100 in the sheet discharge direction EJ. In this embodiment, a through hole 101 is provided in the lower structure 100 of the feeding tray 302 at a position where the adjustment unit 130 is exposed.

Here, the detailed configuration of the adjustment unit 130 will be explained. FIG. 5(A) is a schematic diagram showing the adjustment unit 130 and the through hole 101 in a state where the mounting portion 103 is fixed at the designed initial position. Moreover, FIG. 5(B) is a schematic diagram showing the adjustment unit 130 and the through hole 101 in a state where the attachment part 103 can be fixed at a position other than the designed initial position. The adjustment unit 130 includes a mounting portion 103, a screw 104, and a first insertion hole 502A and a second insertion hole 502B that are formed on the back surface 500B of the upper structure 500 and into which the screw 104 can be inserted and fastened. . Further, the adjustment unit 130 is arranged to be exposed from a through hole 101 provided in the lower structure 100, and is arranged so as to be operable by a user via the through hole 101 (see FIG. 4(B)). The screw hole in this embodiment is the first insertion hole 502A.

First, with reference to FIG. 5(B), the shape of the mounting portion 103 that constitutes the adjustment unit 130 will be described. The mounting portion 103 is formed with a first mounting hole 103A and a second mounting hole 103B arranged at a different position from the first mounting hole 103A in the width direction. The first attachment hole 103A is a long hole extending in the width direction W, and the second attachment hole 103B is a hole whose length in the width direction is shorter than the first attachment hole 103A. Further, the back surface 500B of the upper structure 500 has a first insertion hole 502A (see FIG. 5(A)) into which the screw 104 can be inserted and fastened, and a second insertion hole 502A into which the screw 104 can be inserted and fastened. A hole 502B (see FIG. 5(B)) is formed. The attachment portion 103 can be fixed to the back surface 500B of the upper structure 500 with screws 104. In this embodiment, the attachment portion 103 is fixed to the back surface of the back surface 500B of the upper structure 500, for example, as shown in FIG. 5(A) or FIG. 5(B).

FIG. 5(B) shows a state in which the screw 104 passes through the first attachment hole 103A and is inserted into the first insertion hole 502A. The first attachment hole 103A is a long hole extending in the width direction W, as described above. Thereby, the screw 104 can be inserted into the first insertion hole 502A and fastened at any position of the first attachment hole 103A while passing through the first attachment hole 103A. As a result, when the screw 104 is inserted into the first insertion hole 502A while passing through the first mounting hole 103A, the position of the mounting portion 103 in the width direction W is adjusted and then the back surface 500B of the upper structure 500 is inserted. can be fixed to. That is, in this case, it is possible to fix the rack gears 900A, 900B and the pinion gear 901 to the back surface 500B of the upper structure 500 after adjusting the positions of the rack gears 900A, 900B and the pinion gear 901 in the width direction W. can. The adjusting and fixing means of this embodiment is composed of a screw 104, a first mounting hole 103A formed in the mounting portion 103, and a first insertion hole 502A formed in the back surface 500B of the upper structure 500.

On the other hand, FIG. 5(A) shows a state in which the screw 104 passes through the second attachment hole 103B and is inserted into the second insertion hole 502B (see FIG. 5(B)). As described above, the length of the second attachment hole 103B in the width direction is shorter than that of the first attachment hole 103A. Thereby, the screw 104 passes through the second attachment hole 103B and is inserted into the second insertion hole 502B and then fastened. As a result, when the screw 104 is inserted into the second insertion hole 502B while passing through the second attachment hole 103B, the position of the attachment portion 103 in the width direction W cannot be adjusted. That is, in this case, the position of the attachment portion 103 in the width direction W is fixed at a predetermined position on the back surface 500B of the upper structure 500. The predetermined position of the attachment part 103 is, for example, the designed initial position of the attachment part 103 of the feeding tray 302, and in this case, the rack gears 900A, 900B and pinion gear 901 in the width direction W are also at the designed initial position. It will be fixed at The designed fixing means of this embodiment is composed of a screw 104, a second attachment hole 103B formed in the attachment part 103, and a second insertion hole 502B formed in the back surface 500B of the upper structure 500.

As described above, in this embodiment, the adjustment unit 130 can be operated through the through hole 101. Then, by loosening the screws 104 and releasing the fixation of the mounting portion 103, by operating the adjustment unit 130, the positions of the rack gears 900A, 900B and the pinion gear 901 in the width direction W with respect to the upper structure 500 are adjusted. It becomes possible to do so. In other words, when adjusting the relative position between the upper structure 500 and the side regulating plate 501 (see FIG. 4(A)) on the sheet support surface 500A, the feeding tray 302 is rotated as shown in FIG. There is no need to disassemble the feeding tray 302. Therefore, in the ADF 300, the position of the side regulating plate 501 can be easily adjusted without disassembling the feeding tray 302.

Although FIGS. 5A and 5B illustrate the adjustment unit 130 using only one screw 104, it is also possible to use two screws to attach the mounting portion 103 to the back surface 500B of the upper structure 500. It's okay. In this case, the position of the attachment portion 103 in the width direction W is fixed at a predetermined position on the back surface 500B of the upper structure 500.

As shown in FIGS. 5A and 5B, the attachment portion 103 is provided with a first rib 106A and a second rib 106B. The second rib 106B is located at a different position from the first rib 106A in the width direction W, and is exposed from the through hole 101 in the mounting portion 103. The first rib 106A is also arranged in the mounting portion 103 at a position exposed from the through hole 101. Furthermore, the screw 104 is arranged in a position between the first rib 106A and the second rib 106B in the width direction W. 8 and 9 are cross-sectional views of the ADF 300 when viewed in the width direction W of FIG. Note that in FIGS. 8 and 9, the virtual position of the surface on which sheets are supported in the ejection tray 303 is shown as a sheet ejection surface 303A.

As shown in FIG. 8, the second rib 106B is formed with a second guide portion 160B as a second guide surface that guides the sheet toward the sheet discharge surface 303A, and when viewed in the width direction W, the second rib 106B is It is arranged inside the feeding tray 302 rather than the outer surface 100A of the structure 100. Further, the second rib 106B is formed such that the distance from the sheet ejection surface 303A to the sheet ejection surface 303A is shorter than the distance from the screw 104 to the sheet ejection surface 303A when viewed in the width direction W.

Further, the second guide portion 160B is formed to have a second inclined surface 161B that is inclined toward the sheet discharging surface 303A toward the downstream side in the sheet discharging direction EJ. The second inclined surface 161B is inclined from the opening 101A of the upper through hole 101 that does not face the sheet ejection surface 303A toward the opening 101B of the lower through hole 101 that faces the sheet ejection surface 303A when viewed in the width direction W. It is arranged as follows. The second rib 106B has an upstream end in the sheet discharging direction EJ disposed at a position farther from the sheet discharging surface 303A than the inner surface 100B of the lower structure 100 when viewed in the width direction W, and a downstream end thereof in the sheet discharging direction EJ. It is arranged closer to the surface 303A than the inner surface 100B. Further, in the second rib 106B, the second guide portion 160B is continuously formed from the upstream end to the downstream end in the sheet discharge direction EJ.

Due to this shape, the sheet that enters the through hole 101 and contacts the second rib 106B is discharged onto the discharge tray 303 while being guided toward the sheet discharge surface 303A by the second guide portion 160B. Therefore, damage or jamming of the sheet due to entry of the sheet into the through hole 101 or contact between the second rib 106B and the sheet can be suppressed.

As shown in FIG. 9, the first rib 106A is formed with a first guide portion 160A as a first guide surface that guides the sheet toward the sheet discharge surface 303A, and when viewed in the width direction W, the first rib 106A is It is arranged inside the feeding tray 302 rather than the outer surface 100A of the structure 100. Further, the first rib 106A is formed such that the distance from the sheet ejection surface 303A to the sheet ejection surface 303A is shorter than the distance from the screw 104 to the sheet ejection surface 303A when viewed in the width direction W.

Further, the first guide portion 160A is formed with a first inclined surface 161A that is inclined toward the sheet discharging surface 303A toward the downstream side in the sheet discharging direction EJ. The first inclined surface 161A is inclined from the opening 101A of the upper through hole 101 that does not face the sheet ejection surface 303A toward the opening 101B of the lower through hole 101 that faces the sheet ejection surface 303A when viewed in the width direction W. It is arranged as follows. When viewed in the width direction W, the first rib 106A has an upstream end located at a position farther from the sheet ejection surface 303A than the inner surface 100B of the lower structure 100 in the sheet ejection direction EJ, and a downstream end thereof in the sheet ejection direction EJ. It is arranged closer to the surface 303A than the inner surface 100B. Further, in the first rib 106A, the first guide portion 160A is formed continuously from the upstream end to the downstream end in the sheet discharge direction EJ.

Due to this shape, the sheet that enters the through hole 101 and contacts the first rib 106A is discharged onto the discharge tray 303 while being guided toward the sheet discharge surface 303A by the first guide portion 160A. Therefore, it is possible to suppress damage or jamming of the sheet due to entry of the sheet into the through hole 101 or contact between the first rib 106A and the sheet.

Further, the first rib 106A and the second rib 106B are formed such that the distance from the sheet ejection surface 303A to the sheet ejection surface 303A is shorter than the distance from the screw 104 to the sheet ejection surface 303A when viewed in the width direction W. This prevents contact between the sheet that has entered the through hole 101 and the screw 104, so even if the adjustment unit 130 is exposed from the through hole 101, the sheet may be damaged or jammed due to a collision between the sheet and the screw 104. The occurrence of can be suppressed.

Note that the downstream side surface 603 of the through hole 101 in the sheet discharging direction EJ may be shaped to be inclined toward the sheet discharging surface 303A toward the downstream side in the discharging direction EJ. By providing such an inclination, it becomes possible to more reliably guide the sheet that has entered the through hole 101 and passed through the first rib 106A and the second rib 106B toward the sheet discharge surface 303A.

As shown in FIGS. 5(A, B) and FIG. 9, in this embodiment, an operating member such as a knob 107 is provided in the mounting portion 103 at a position exposed from the through hole 101. The position of the mounting portion 103 in the width direction W can be moved by operating the knob 107 in a state where the screw 104 passes through the first mounting hole 103A and is inserted into the first insertion hole 502A. That is, by operating the knob 107, the positions of the mounting portion 103, the rack gears 900A, 900B, and the pinion gear 901 in the width direction W can be adjusted. Further, as shown in FIG. 9, the knob 107 is arranged inside the feeding tray 302 from the outer surface 100A of the lower structure 100 when viewed in the width direction W. Further, since the knob 107 projects further toward the sheet ejection surface 303A than the first rib 106A and the second rib 106B, operability can be improved. Further, the end surface 107A of the knob 107 facing the sheet ejection surface 303A is shaped to be inclined toward the sheet ejection surface 303A as it goes downstream in the sheet ejection direction EJ. With such a shape, damage to the sheet or occurrence of jam due to collision between the knob 107 and the sheet can be suppressed.

Further, as shown in FIGS. 5A and 5B, a memory 102 is formed in the lower structure 100 and extends in the direction in which the knob 107 moves. The memory 102 indicates the amount of movement of the side regulating plate 501 due to the movement of the mounting portion 103 in response to the operation of the knob 107. In other words, the memory 102 indicates the relative position of the side regulating plate 501 with respect to the sheet support surface 500A in the width direction W. By checking the positions of the memory 102 and the knob 107, the user can recognize the relative position of the side regulating plate 501 with respect to the seat support surface 500A. The shape of the memory 102 may be other than the shape in which a plurality of grooves are provided at equal intervals in the lower structure 100 as shown in FIGS. 5A and 5B. For example, a triangular marker or the like may be provided on the mounting portion 103 and the lower structure 100, respectively. In this case, the relative position of the side regulating plate 501 with respect to the seat support surface 500A can be recognized according to the amount of deviation between the marker on the attachment part 103 and the marker on the lower structure 100.

<Other Examples>
The configuration provided in the feed tray 302 of the first embodiment may be provided in the manual feed tray of the image forming apparatus 200, for example. In this case, the position in the width direction of the side regulating plate provided on the manual feed tray can be adjusted, and the position in the width direction of the sheet can be adjusted when feeding the sheet from the manual feed tray toward the image forming section 200A. becomes possible.

100: Lower structure (cover member) / 101: Through hole / 102: Memory / 103: Mounting part (mounting member, interlocking mechanism) / 103A: First mounting hole (elongated hole, adjustment fixing means) / 103B: Second Mounting hole (designed fixing means) / 104: Screw (adjustment fixing means, designed fixing means) / 106A: First rib / 106B: Second rib / 107: Knob / 160A: First guide part (first guide surface) / 160B: Second guide section (second guide surface)/161A: First inclined surface/161B: Second inclined surface/200: Image forming device/200A: Image forming section (image forming means)/201: Image reading device/ 302: Feed tray / 303: Ejection tray (ejection sheet support means) / 401: Pick-up roller (sheet feeding means) / 402: Separation roller (sheet feeding means) / 406: Ejection roller (sheet ejection means) / 409 : First reading means (image reading means) / 410: Second reading means (image reading means) / 500: Upper structure (sheet support member) / 500A: Sheet support surface / 500B: Back surface / 501, 501A, 501B: Side regulation plate (pair of regulation members) / 502A: First insertion hole (screw hole, adjustment fixing means) / 502B: Second insertion hole (designed fixation means) / 900, 900A, 900B: Rack gear (interlocking mechanism) / 901 : Pinion gear (interlocking mechanism) / EJ: Discharge direction / FD: Feeding direction / W: Width direction

Claims (14)

a seat support member having a seat support surface that supports the seat;
sheet feeding means for feeding the sheet supported by the sheet supporting member;
a sheet discharging means for discharging the sheet fed by the sheet feeding means in a discharging direction;
ejection sheet support means having a sheet ejection surface that supports the sheet ejected by the sheet ejection means;
a pair of regulating members provided on the seat support surface;
A mounting member is provided on the back surface of the sheet support member opposite to the sheet support surface, and is interlocked with movement of one of the pair of restriction members in the width direction perpendicular to the sheet feeding direction. an interlocking mechanism that moves the other regulating member by moving the other regulating member;
Adjustment and fixing means for adjusting the position of the interlocking mechanism in the width direction and fixing the mounting member in a state where the position of the interlocking mechanism is adjusted;
a cover member arranged to face the sheet ejection surface and cover the interlocking mechanism,
The cover member has a through hole that exposes the adjustment fixing means.
A sheet feeding device characterized by: The mounting member has an elongated hole extending in the width direction,
The adjustment and fixing means includes a screw, the elongated hole, and a screw hole provided in the seat support member and into which the screw can be inserted and fastened with the screw passing through the elongated hole. Ru,
The sheet feeding device according to claim 1, characterized in that: a first guide surface that guides a sheet that has entered the through hole toward the sheet ejection surface and is disposed opposite to the sheet ejection surface ; a first rib stored inside the
a second guide surface that guides a sheet that has entered the through hole toward the sheet ejection surface and is disposed opposite to the sheet ejection surface ; a second rib that is housed inside the second rib and is located at a different position from the first rib in the width direction;
The screw is arranged between the first rib and the second rib in the width direction,
The first guide surface and the second guide surface are formed such that the distance to the sheet ejection surface is shorter than the screw.
The sheet feeding device according to claim 2, characterized in that: The first rib and the second rib are arranged at positions exposed from the through hole, and when viewed in the width direction, the upstream end of the sheet in the sheet discharge direction is located on the inner surface of the cover member with respect to the sheet discharge surface. , and the downstream end in the discharge direction is closer to the sheet discharge surface than the inner surface of the cover member ,
The first guide surface is continuously formed in the first rib from the upstream end in the discharge direction toward the downstream end in the discharge direction,
The second guide surface is continuously formed in the second rib from the upstream end in the discharge direction toward the downstream end in the discharge direction.
The sheet feeding device according to claim 3, characterized in that: The first guide surface has a first inclined surface that is inclined toward the sheet ejection surface toward the downstream side in the ejection direction,
The second guide surface has a second inclined surface that is inclined toward the discharge surface toward the downstream side in the discharge direction,
The first inclined surface and the second inclined surface are arranged to be inclined from the upper opening of the through hole to the lower opening of the through hole, when viewed in the width direction.
The sheet feeding device according to claim 4, characterized in that: an operating member that moves the position of the interlocking mechanism in the width direction by operating in a state in which the fixing of the attachment member by the adjustment fixing means is released;
The operating member is located at a position exposed from the through hole and is housed inside the outer surface of the cover member with respect to the seat support surface.
The sheet feeding device according to any one of claims 3 to 5. When viewed in the width direction, the operating member is arranged to protrude more toward the sheet ejection surface than the first rib and the second rib.
The sheet feeding device according to claim 6, characterized in that: The operating member has an end surface facing the sheet ejection surface that is inclined toward the sheet ejection surface toward the downstream side in the ejection direction.
The sheet feeding device according to claim 6 or 7, characterized in that: A side surface of the through hole on the downstream side in the discharge direction is inclined toward the sheet discharge surface the further downstream in the discharge direction.
The sheet feeding device according to any one of claims 6 to 8. comprising a memory indicating the relative position of the pair of regulating members with respect to the sheet support surface in the width direction;
The sheet feeding device according to any one of claims 1 to 9. comprising design fixing means for fixing the interlocking mechanism at a designed initial position;
The sheet feeding device according to any one of claims 1 to 10. The seat support member is configured to be able to rotate upward together with the cover member around a rotation axis.
The sheet feeding device according to any one of claims 1 to 11. A sheet feeding device according to any one of claims 1 to 12 ,
an image reading unit that reads an image of a sheet fed by the sheet feeding device;
An image reading device characterized by: An image reading device according to claim 13 ;
an image forming means for forming an image read by the image reading device on a sheet;
An image forming apparatus characterized by:

Images