JP5225189B2 - Sheet conveying apparatus and sheet processing apparatus - Google Patents

Description

  The present invention relates to a sheet conveying apparatus that conveys a sheet material such as paper, and a sheet processing apparatus.

  2. Description of the Related Art Conventionally, an image reading apparatus equipped with an automatic document feeder (ADF) that separates and conveys a plurality of documents one by one is known (see, for example, Patent Document 1).

  In such an automatic document feeder mounted on a conventional image reading apparatus, the document conveyance path is U-shaped, the document placed on the paper feed tray is taken into the conveyance path, and the document is U-shaped. It is designed to be conveyed while curving.

  Also, in the conventional image reading apparatus, a paper feed guide is provided on the side surface of the apparatus separately from the paper feed tray, and the original is separately provided on the paper feed guide with respect to the conveyance path for conveying the original while being bent in a U shape. It can be fed.

  Here, in the conventional image reading apparatus described above, there is a problem that a great deal of time is required for the restoration work after a conveyance abnormality such as a paper jam. For example, when a conveyance error such as a paper jam occurs when feeding a document from the paper feed guide side, the document is firmly held in a paper feed mechanism (for example, a roller). There is a problem that it is difficult to take out. In particular, when an abnormality occurs in the conveyance of a relatively small document such as a postcard or a business card, there is a problem that the subsequent recovery operation is very troublesome.

  Further, after an abnormal conveyance such as a paper jam, if the jammed document is forcibly taken out, the document may be torn or the paper feed mechanism may be damaged. If the original is torn, the original remaining on the paper feed mechanism or the like becomes more difficult to take out.

  The above-described problem does not occur only in the document reading apparatus, and may occur in other processing apparatuses provided with means for conveying a sheet material, for example.

JP 2008-239255 A (FIG. 1)

  In view of the above-described circumstances, an object of the present invention is to provide a sheet conveying apparatus and a sheet processing apparatus that can perform a recovery operation performed after a sheet material conveyance abnormality or the like in a short time and simply.

In order to achieve the above object, a sheet conveying apparatus of the present invention includes a sheet placing unit that holds a sheet placing plate on which a sheet material is placed, and the sheet material on the sheet placing plate is conveyed into the apparatus. Sheet conveying means, and the sheet conveying means is provided opposite to the sheet taking-in means, the sheet taking-in means for taking in the sheet material on the sheet placing plate into the apparatus, and the sheet material And a sheet conveying path for conveying another sheet material supplied from a position different from the position of the sheet placing means, and the sheet conveying The path includes a path including a folding part, and the sheet material supply path from the sheet placing unit joins the sheet conveying path at the folding part of the sheet conveying path or downstream in the conveying direction thereof, Above Over DOO mounting means, the seat mounting plate as well as movably held in the thickness direction, has a pressing means for pressing the sheet mounting plate in the thickness direction, the pressing means, the sheet placing It also serves as a restricting means for aligning the sheet material on the placing plate, and presses the urging means at the end of the sheet placing plate in conjunction with the pressing operation of the sheet placing plate by the pressing means. And moving in a direction away from the sheet taking-in means.

Further, a sheet processing apparatus according to another aspect of the present invention for achieving the above object includes a sheet placing means for holding a sheet placing plate on which a sheet material is placed, and a predetermined process on the sheet material. Sheet processing means to be applied, and sheet conveying means for conveying the sheet material on the sheet placing plate to the sheet processing means, and the sheet conveying means is supplied from a position different from the sheet placing means. A sheet conveying path that conveys another sheet material, and the sheet conveying path includes a folded portion, and the sheet processing means is located downstream of the folded portion of the sheet conveying path in the conveying direction. The sheet material supply path from the sheet placing means is joined to the sheet conveyance path at a folded portion of the sheet conveyance path or downstream in the conveyance direction, and The sheet conveying means is provided opposite to the sheet take-in means for taking in the sheet material on the sheet placing plate into the apparatus and the sheet take-in means, and biases the sheet material to the sheet take-in means. Biasing means, the sheet placement means has a pressing means for holding the sheet placement plate movably in the thickness direction and pressing the sheet placement plate in the thickness direction, The pressing unit also serves as a regulating unit that aligns the sheet material on the sheet mounting plate, and is linked to a pressing operation of the sheet mounting plate by the pressing unit. The urging means is pressed to operate in a direction away from the sheet taking-in means.

  According to the present invention, the urging means is attached to the sheet placement plate so as to be interlocked with the push-down operation of the sheet placement plate while the sheet placement plate is pushed down by the pressing means to ensure a sufficient space for taking out the sheet material. Since the urging means is retracted from the sheet take-in means by being pushed down at the end, the force applied to the sheet material can be substantially reduced or released, and between the sheet take-in means and the urging means. Since the sheet material can be removed relatively easily from the sheet material, for example, there is an effect that the recovery operation performed after the sheet material conveyance abnormality or the like can be performed in a short time and simply.

  In particular, according to the present invention, when the sheet material is clogged near the inlet of the sheet material into the apparatus when the sheet material is abnormally conveyed, the subsequent recovery operation can be performed in a short time and simply. Excellent effect in terms.

FIG. 2 is a schematic cross-sectional view illustrating the configuration of the image reading apparatus according to the first embodiment. FIG. 2 is a schematic cross-sectional view illustrating a main part of the image reading apparatus according to the first embodiment. FIG. 3 is a perspective view illustrating a main part of the image reading apparatus according to the first embodiment. FIG. 3 is a perspective view illustrating a schematic configuration of a document placing unit according to the first embodiment. FIG. 3 is a perspective view illustrating a schematic configuration of a document placing unit according to the first embodiment. FIG. 3 is a schematic cross-sectional view for explaining the operation of the document placing unit according to the first embodiment. FIG. 3 is a schematic diagram illustrating a state when a conveyance error occurs in the image reading apparatus according to the first embodiment.

  Hereinafter, the present invention will be described in detail based on embodiments for carrying out the present invention.

(Embodiment 1)
FIG. 1 is a schematic diagram showing a configuration of an image reading apparatus according to Embodiment 1 of the present invention.

  As shown in FIG. 1, the image reading apparatus 1 of the present embodiment is an example of a processing apparatus that reads an image on one or both sides of a document D while conveying the document D, and includes a lower unit 10 that forms the lower part of the device, The upper unit 20 is provided so as to be rotatable in the opening / closing direction with respect to the lower unit 10, and has a structure that is vertically divided into two.

  For example, in the present embodiment, one end in the width direction of the upper unit 20 is rotatably connected to the corresponding one end in the width direction of the lower unit 10 at two locations by a link member 30 made of a hinge or the like. The upper unit 20 can be opened and closed with respect to the lower unit 10. Specifically, in the image reading apparatus 1 of the present embodiment, the upper unit 20 can be opened and closed in the width direction of the document D, that is, in the direction orthogonal to the transport direction.

  The upper unit 20 is provided at an upper end portion, a document placing table 21 on which a plurality of documents D are placed, a conveying path 22 for conveying the document D from the document placing table 21 in a substantially U shape, and the conveying path 22. And a document discharge table 23 provided in the vicinity of the exit (opening).

  In addition, one end of the transport path 22 of the upper unit 20, that is, in the vicinity of the document D feeding port (take-in port) on the document placing table 21 side, the document D from the document placing table 21 to the inside of the upper unit 20. A pickup roller 24 is provided as a take-in means for taking-in.

  Further, a feeding roller 25 and a separation roller 26 facing the feeding roller 25 are arranged on the downstream side of the conveying path 22 with respect to the conveying direction from the pickup roller 24. That is, the document D taken in by the pickup roller 24 is conveyed while being separated one by one by the feeding roller 25 and the separation roller 26 on the downstream side thereof.

  Further, in the transport path 22 of the upper unit 20, two pairs of transport rollers 27 and 28 are provided side by side with an interval on the downstream side of the feed roller 25 and the separation roller 26 in the transport direction. A document discharge table 23 that receives the document D discharged from the transfer path 22 is provided on the other end side of the transfer path 22 of the upper unit 20, that is, on the discharge port side of the document D. The document discharge table 23 is located below the document table 21 described above.

  Therefore, in the upper unit 20 having such a conveyance path 22, the document D is taken into the upper unit 20 from the document placing table 21 by the pickup roller 24, and is substantially U-shaped one by one by the feeding roller 25 and the separation roller 26. The sheet is fed to a sheet-like conveyance path 22 and discharged one by one to a document discharge table 23 located below the document table 21 via a pair of conveyance rollers 27 and 28.

  In this embodiment, the transport path 22 of the upper unit 20, specifically, slightly downstream of the folded portion (U-turn curve) in which the transport direction is changed, is composed of two pairs of transport rollers 27 and 28. A first image reading unit 40 that reads an image on one side of the document D in the main scanning direction, that is, a direction orthogonal to the document conveying direction is disposed on the sandwiched wall portion.

  The first image reading unit 40 has a length corresponding to the width dimension of the document D, and a contact glass 41 disposed on the side facing the conveyance path 22 and the conveyance path 22 (actually passes through the conveyance path 22). A light source 42 for irradiating the original D) with light, and a line image sensor 43 for receiving reflected light from the original D and reading an image of the original D.

  Further, for example, a black facing member 50 is provided on the inner wall of the conveyance path 22 on the side facing the first image reading unit 40. For example, a white color reference member 51 is provided adjacent to the downstream side of the facing member 50 in the transport direction for shading correction. The shading correction herein refers to correcting the “light intensity unevenness” of the light source and the “sensitivity unevenness” of the line image sensor 43 in units of pixels of the line image sensor 43 by reading the color reference member 51 by the line image sensor 43. .

  Further, a registration sensor 60 that detects passage of a document in the middle of conveyance is disposed on the conveyance path 22 of the upper unit 20, specifically, on the upstream side of the first image reading unit 40 in the conveyance direction. Thereby, the conveyance state of the document D is detected by the registration sensor 60, and the timing of the reading operation of the document D in the first image reading unit 40 can be achieved.

  For example, in the reading operation of the document D in the first image reading unit 40, when the distance between the registration sensor 60 and the first image reading unit 40 is L and the conveyance speed is V, the document D is transferred to the first image reading unit 40. It starts after L / V seconds of arrival. That is, in the image reading apparatus of the present embodiment, for example, when the document D does not reach the first image reading unit 40 even after a predetermined time has elapsed, it is determined that there is an abnormality. Of course, the abnormality may be detected by a sensor or the like that detects the state of document conveyance. Also, the type of abnormality is not particularly limited, and examples thereof include jams such as paper jams, and multifeeds.

  The lower unit 10 on which such an upper unit 20 is mounted has a glass plate 11 at a part of the upper end surface. Specifically, the glass plate 11 includes a long first glass plate 111 corresponding to the width dimension of the document D and a second glass plate 112 having a size corresponding to the document size.

  A second image reading unit 70 that reads an image of the document D is provided below the glass plate 11. The second image reading unit 70 includes a light source 72 and a line image sensor 73. The second image reading unit 70 is provided to be movable along the surface direction of the glass plate 11 (specifically, the second glass plate 112). In other words, the document D placed on the second glass plate 112 reads the document surface while the second image reading unit 70 moves along the second glass plate 112.

  In addition, the second image reading unit 70 is configured so that the other side of the document D conveyed in the upper unit 20 described above is in the main scanning direction (document conveyance) at the standby position, that is, the position below the first glass plate 111. In a direction perpendicular to the direction).

  Specifically, an opening that penetrates the lower end of the upper unit 20 that faces the second image reading unit 70 and the first glass plate 111 at the standby position until reaching the conveyance path 22 is provided. Note that, for example, a black facing member 50 is provided on the wall portion facing the opening of the transport path 22. Further, for example, a white color reference member 51 is provided between the first glass plate 111 and the second glass plate 112 in a length corresponding to the width dimension of the document D for shading correction.

  The second image reading unit 70 reads the other side of the document D when the document D passes through the conveyance path 22 corresponding to the opening at the standby position. Accordingly, in the present embodiment, it is possible to read the images on both sides of the document D only by transporting the document D once in the upper unit 20.

  Actually, each of the first image reading unit 40 and the second image reading unit 70 irradiates light from a light source onto the document D transporting the transport path 22 and reflects the light reflected from the document to the line image sensor. 43 and 73, photoelectric conversion is performed by an A / D converter (not shown), and image data having a predetermined color depth is output. The image processing unit (not shown) performs shading processing, document position detection processing, image correction processing, and the like on the image data output from the first image reading unit 40 and the second image reading unit 70, and then the host. It is sent to a PC or the like.

  In the image reading apparatus 1 of the present embodiment, the second glass plate 112 (image reading surface) of the lower unit 10 is operated by operating the upper unit 20 in the open state, that is, in a direction tilted with respect to the lower unit 10. It is opened and image reading can be performed also on the second glass plate 112.

  In other words, in the present embodiment, the image reading surface (which is opened by lifting the upper unit 20), as well as performing image reading while sequentially conveying a plurality of documents D through the substantially U-shaped conveyance path 22. The second image reading unit 70 can appropriately read an image of a document or the like that is not transported or cannot be transported by the second image reading unit 70 via the second glass plate 112).

  In the image reading apparatus 1 of the present embodiment, as described above, the conveyance path 22 of the document D is substantially U-shaped in the upper unit 20, and the document D is near one longitudinal end of the upper unit 20. The conveyance path 22 is folded.

  In the present embodiment, another document D ′ is placed on the end of the upper unit 20 opposite to the document placing table 21 side, corresponding to the folded portion of the document D transport path 22 described above. A document placing unit 200 serving as a document placing means is connected. When feeding the document D ′ from the document placing unit 200, the driving of the document D transport mechanism (pickup roller 24, etc.) from the document placing table 21 side is stopped. In this way, the transport driving of the document D from the document placing table 21 side and the transport driving of the document D ′ from the document placing unit 200 can be appropriately switched by a drive switching unit, although not shown.

  Here, with reference to FIGS. 1 and 2 to 7, the main part of the image reading apparatus according to the present embodiment, specifically, the original placing unit of the original placing means for placing another original D ′. 200 will be described in detail. 2 is a schematic cross-sectional view showing a main part of the image reading apparatus of FIG. FIG. 3 is a perspective view showing a main part of the image reading apparatus according to Embodiment 1 of the present invention. 4 and 5 are perspective views showing a schematic configuration of the document placing unit. FIG. 6 is a schematic sectional view for explaining the operation of the document placing unit. FIG. 7 is a schematic diagram illustrating a state when the conveyance is abnormal.

  As shown in FIGS. 1 and 2, in the present embodiment, a supply path 222 that supplies the document D ′ on the document placement unit 200 joins the transport path 22 of the upper unit 20. In this embodiment, the supply path 222 is provided with a predetermined inclination along the transport direction downstream from the folded portion of the transport path 22. Thus, the document D ′ that joins the supply path 222 to the transport path 22 can be smoothly transported toward the first image reading unit 40 and the second image reading unit 70 without being affected by the warp caused by the folding unit. it can.

  Here, the document placing unit 200 is provided so as to be openable and closable with respect to the end face (side face) of the upper unit 20 as shown in FIGS. Such a document placing unit 200 is accommodated entirely on the side surface of the upper unit 20. When the document placement unit 200 is stored, the side surface of the upper unit 20 and the bottom surface of the document placement unit 200 are the same surface.

  The document placing unit 200 holds a document placing plate 201 on which the document D ′ is placed so as to be movable in the thickness direction. For example, in the present embodiment, as shown in FIG. 2, a coiled spring member 202 is mounted on the document placing unit 200, and the document placing plate 201 is supported on the spring member 202. Thereby, the document placing plate 201 can be moved up and down in the thickness direction. Further, as shown in FIGS. 3 to 5, at the end portion of the document placing unit 200, specifically, at the end portion opposite to the connection side with the upper unit 20, the rotation shaft projects inwardly. 203 is provided on each side. The document placing plate 201 is rotatably held by a rotation shaft 203 at a base end portion 201 a on the side of the document D ′, that is, on the side opposite to the upper unit 20 side. In addition, a pair of pressing protrusions 201b projecting on both sides in the width direction are provided on the leading end side of the document placing plate 201 as described above.

  Furthermore, a substantially rectangular notch 204 is provided at one end in the width direction of the document placing plate 201, specifically, at the end opposite to the conveyance path 22 side and at one end in the width direction. ing. A pressing means 205 for pressing the document placing plate 201 in the thickness direction is attached to the notch portion 204. In this embodiment, the pressing means 205 is provided to engage with the notch portion 204 of the document placement plate 201 and to protrude from the end of the engagement portion 206 onto the document placement plate 201. And a protruding portion 207.

  Such a pressing means 205 is perpendicular to the surface direction of the document placing plate 201 and the direction in which the document D ′ is taken into the upper unit 20 with the engaging portion 206 engaged with the notch portion 204. It is slidably provided in the direction. On the other hand, a wall 208 is provided at the end of the document placing unit 200 opposite to the pressing means 205 side. As a result, the document D ′ placed on the document placing plate 201 is sandwiched between the protruding portion 207 and the wall portion 208 by the sliding movement of the pressing means 205, and the alignment in the width direction is adjusted. Yes.

  In this embodiment, by pressing the protrusion 207 of the pressing unit 205, the document placing plate 201 is pushed down while being inclined toward the conveyance path 22 by the elastic deformation of the spring member 202 with the rotation shaft 203 as a base axis. It has become. That is, since the document placing plate 201 is rotatably held by the rotation shaft 203, the spring member 202 is elastically deformed when the protruding portion 207 of the pressing means 205 is pressed. Thereby, as shown in FIG. 6, the document placing plate 201 is pushed down while being inclined toward the transport path 22 (upper unit 20) as a whole.

  In the present embodiment, the inclination angle of the document placing plate 201 with respect to the horizontal plane is such that the supply path 222 that joins the transport path 22 and the transport path in a state where the document placing plate 201 is not pressed, as shown in FIG. The inclination angle with respect to the horizontal plane of the path on the downstream side of the folded portion 22 is substantially the same. Thereby, smooth supply and conveyance of the document D ′ with respect to the conveyance path 22 can be realized. On the other hand, in the state in which the document placement plate 201 is pressed, the inclination angle of the document placement plate 201 with respect to the horizontal plane is such that the supply path 222 that joins the transport path 22 and the return of the transport path 22 are folded as shown in FIG. It becomes substantially larger than the inclination angle with respect to the horizontal plane of the path downstream from the section. As a result, the take-in port for the original D ′ is substantially expanded, and a space for taking out the original D ′ can be secured sufficiently as will be described in detail later.

  On the other hand, a pickup roller 210 for biasing the document D ′ is provided above the document placing plate 201 as shown in FIG. Further, a feeding roller 211 serving as a taking-in means for taking the document D ′ into the upper unit 20 (apparatus) is disposed on the side of the conveyance path 22 from the pickup roller 210. The pickup roller 210 and the feeding roller 211 are connected to each other by a rotating belt 212 so that rotational power is transmitted through the rotating belt 212.

  Further, as shown in FIG. 4 and the like, a separation pad 213 serving as a biasing unit that biases the feed roller 211 from below is disposed in a portion facing the feed roller 211 in the present embodiment, for example. ing.

  Here, the separation pad 213 includes a contact portion 214 that contacts the feeding roller 211 and an inclined portion 215 that extends from the contact portion 214 toward the document placing plate 201. Further, a biasing spring 217 is installed on the end portion of the document placing unit 200 facing the contact portion 214 of the separation pad 213 (see FIG. 2 and the like). In other words, the separation pad 213 is supported by the urging spring 217 so as to be movable up and down, and is configured to urge the feeding roller 211 with a predetermined pressing force. Further, a flange portion 216 that protrudes on both sides in the width direction is provided on the distal end side of the inclined portion 215 of the separation pad 213, that is, on the end portion on the document placing plate 201 side.

  As shown in FIG. 6, the separation pad 213 described above is pushed down in a direction away from the feeding roller 211 (retracting direction) in conjunction with the depression of the document placing plate by the pressing unit 205. Yes.

  In other words, in this embodiment, when the protruding portion 207 of the pressing unit 205 is pressed, the document placing plate 201 is pushed down while being inclined toward the conveyance path 22 as described above. At this time, the pressing protrusion 201 b of the document placing plate 201 abuts on the flange 216 of the separation pad 213 to interlock the separation pad 213. As a result, the separation pad 213 is lowered in the direction of retreating from the feeding roller 211.

  As described above, in the image reading apparatus 1 of the present embodiment, the pressing unit 205 (protruding portion 207) is pressed to push down the document placing plate 201. The restoration work can be performed in a short time and easily.

  For example, the conveyance abnormality as shown in FIG. 7, specifically, the document D ′ is between the document placing plate 201 and the pickup roller 210, between the feeding roller 211 and the separation pad 213, and the conveyance roller pair on the conveyance path 22. In the case where the paper is jammed while being pinched at three positions between 27, the force applied to the document D 'becomes very strong. For this reason, it is very difficult to take out the document D ′ pressed at a plurality of places as it is.

  In the present embodiment, when the document D ′ is taken out from the state where the document D ′ is jammed as shown in FIG. 7, the document D is pressed by pressing the pressing unit 205 (projecting portion 207) and pushing down the document placing plate 201. Since the take-in port of 'is greatly expanded compared to before pressing, even when the document D' is clogged near the take-in port of the document D ', a space for taking out the document D' can be secured and the document D 'is taken out. Can be made easier.

  In particular, since the document D ′ is sandwiched between the pickup roller 210 and the document placement plate 201, the force applied to the document D ′ from the pickup roller 210 is reduced or released by pushing down the document placement plate 201. Therefore, the document D ′ can be easily taken out.

  In the present embodiment, the separation pad 213 is pushed down so as to be interlocked with the push-down operation (pressing operation) of the document placing plate 201, and the separation pad 213 is retracted from the feed roller 211. Further, the force applied to the document D ′ from the separation pad 213 can be reduced or released, and the jammed document D ′ can be easily taken out between the feeding roller 211 and the separation pad 213.

  In particular, in the present embodiment, when a relatively small size document such as a business card or a postcard is fed as the document D ′ from the document placement unit 200, the document D ′ is jammed near the intake port due to a conveyance error. Then, the subsequent recovery operation can be performed in a short time and in a simple manner.

  Further, as in the present embodiment, by making it easy to take out the document D ′, it is possible to reduce loads on the pickup roller 210, the feeding roller 211, and the separation pad 213, thereby improving the durability of these members. be able to. In addition, since deterioration due to wear or the like of the pickup roller 210 or the like can be reduced, it is effective for, for example, noise reduction and motor power saving.

  As described above, in the image reading apparatus 1 according to the present embodiment, by pushing down the document placing plate 201, the intake port for the document D ′ can be expanded, so that after the conveyance error of the document D ′. In addition, there is an effect that the document D ′ can be easily set between the pickup roller 210 and the document placing plate 201 even during normal use.

(Other embodiments)
As mentioned above, although Embodiment 1 of this invention was demonstrated, of course, this invention is not limited to the above-mentioned Embodiment 1. FIG. For example, in Embodiment 1 described above, the separation pad 213 is illustrated as an urging unit for the feeding roller 211. However, the present invention is not limited to this, and may be, for example, a separation roller. Even in this case, the same effect as that of the above-described first embodiment can be obtained by pushing down the separation roller by the pressing unit and retracting the separation roller from the taking-in unit such as the feeding roller.

  In the first embodiment described above, the case where the transport path 22 is provided in the upper unit 20 has been described. Of course, the present invention is not limited to this, and the transport path may be provided in the lower unit. A continuous conveyance path may be provided in the lower unit. In the present invention, the shape of the transport path is not limited to the U shape.

  Furthermore, in the first embodiment described above, the structure example in which the first image reading unit 40 is provided in the upper unit 20 and the second image reading unit 70 is provided in the lower unit 10 has been described, but the present invention is of course limited to this. Instead, the image reading unit may be provided only in the upper unit, or the image reading unit may be provided only in the lower unit. Further, the installation position of the image reading unit in each unit is not particularly limited. For example, an image reading unit may be provided inside a lid member that covers the document placing surface on the lower unit, and the image reading unit may be provided so as to be movable along the document placing surface.

  In the above-described first embodiment, the pressing unit 205 is provided so as to be slidable. The configuration example also serves as an alignment rib in the width direction of the document D ′. However, the present invention is of course limited to this. Alternatively, the pressing means may not be slid.

  Furthermore, in the above-described first embodiment, the pressing unit 205 has been described using a structural example in which the base end portion 201a of the document placing plate 201 is provided. However, the present invention is not limited to this, and the pressing unit is not limited to the document mounting. You may make it provide in the document taking-in port side of a mounting surface. Thereby, an urging means can be pushed down efficiently.

  In Embodiment 1 described above, the pressing unit 205 is also slid in the width direction of the document D ′ so as to serve as a regulation unit that adjusts the alignment in the width direction of the document D ′. For example, a pressing means is provided at the rear end side of the document placed on the document placing plate, that is, the end opposite to the intake port side, and the pressing means is slidable in the document taking-in direction. By providing in the above, alignment in the document taking-in direction may be adjusted by the pressing means.

  Furthermore, in the above-described first embodiment, the case where the present invention is applied to the document placing unit 200 that separately conveys the document D ′ to the transport path 22 of the upper unit 20 has been described. For example, the present invention can be applied to a component including a take-in means for taking a document into the conveyance path regardless of the document size.

  In the above-described first embodiment, the document image reading apparatus 1 is described as an example to which the sheet conveying apparatus of the present invention is applied. However, the present invention is widely used in a sheet material conveying apparatus or such a conveying apparatus. Is intended for all sheet processing apparatuses equipped with In other words, the present invention can be applied to various processing apparatuses that execute processing of any one of conveyance of sheet materials such as paper and film, image reading, and printing, or processing combining two or more of these processings. is there.

D, D 'Document 1 Image reading device 10 Lower unit 20 Upper unit 22 Transport path 30 Link member 40 First image reading unit 70 Second image reading unit 200 Document placing unit 201 Document placing plate 202 Spring member 203 Rotating shaft 204 Notch 205 Pressing means 206 Engaging portion 207 Protruding portion 208 Wall portion 210 Pickup roller 211 Feeding roller 212 Rotating belt 222 Supply path

Claims (7)

Sheet placing means for holding a sheet placing plate on which the sheet material is placed, and sheet conveying means for conveying the sheet material on the sheet placing plate into the apparatus,
The sheet conveying means is provided opposite to the sheet take-in means for taking in the sheet material on the sheet placement plate into the apparatus, and attaches the sheet material to the sheet take-in means. Energizing means for energizing,
And a sheet conveying path for conveying another sheet material supplied from a position different from the sheet placing means, and the sheet conveying path comprises a path including a folded portion, The sheet material supply path is joined to the sheet conveyance path at the folded portion of the sheet conveyance path or the downstream side in the conveyance direction,
The sheet placing means has a pressing means for holding the sheet placing plate movably in the thickness direction and pressing the sheet placing plate in the thickness direction,
The pressing means also serves as a regulating means for aligning the sheet material on the sheet placing plate,
In conjunction with the pressing operation of the sheet placing plate by the pressing means, the urging means is pressed at the end of the sheet placing plate to move away from the sheet taking-in means. A sheet conveying apparatus that is characterized. The pressing means is provided so as to protrude on the sheet placing plate and movably provided in the surface direction of the sheet placing plate and in a direction perpendicular to the sheet material taking-in direction ,
A wall portion is provided at the end opposite to the pressing means side on the sheet placing plate,
By moving the pressing means toward the wall, the sheet material placed on the sheet placing plate can be sandwiched between the pressing means and the wall in the width direction . The sheet conveying apparatus according to claim 1 . The seat mounting plate is a sheet conveying apparatus according to claim 1 or 2, characterized in that it is rotatably held by the end opposite to the inlet side of the sheet material. The sheet material take-in port that opens near the end of the sheet placing means is greatly expanded as compared to before pressing due to the pressing of the sheet placing plate by the pressing means. The sheet conveying apparatus of any one of Claims 1-3 . It said biasing means, the sheet conveying device according to any one of claims 1-4, characterized in that a separating pad or a separation roller for separating a plurality of the sheet material one by one. Sheet placing means for holding a sheet placing plate on which the sheet material is placed, sheet processing means for performing a predetermined process on the sheet material, and the sheet material on the sheet placing plate as the sheet processing means. Sheet conveying means for conveying,
The sheet conveying means includes a sheet conveying path for conveying another sheet material supplied from a position different from the sheet placing means, and the sheet conveying path includes a path including a folded portion, and The sheet processing means is disposed on the downstream side in the conveyance direction with respect to the folding portion of the sheet conveyance path, and the sheet material supply path from the sheet placing means is the folding portion of the sheet conveyance path or downstream in the conveyance direction. Merging with the sheet conveyance path on the side,
The sheet conveying means is provided opposite to the sheet taking-in means for taking in the sheet material on the sheet placing plate into the apparatus and the sheet taking-in means, and biases the sheet material to the sheet taking-in means. Biasing means to
The sheet placing means has a pressing means for holding the sheet placing plate movably in the thickness direction and pressing the sheet placing plate in the thickness direction,
The pressing means also serves as a regulating means for aligning the sheet material on the sheet placing plate,
In conjunction with the pressing operation of the sheet placing plate by the pressing means, the urging means is pressed at the end of the sheet placing plate to move away from the sheet taking-in means. A sheet processing apparatus. The sheet processing means executes one of image reading and printing processes on the sheet material, or a predetermined process combining two or more of these processes. 6. The sheet processing apparatus according to 6 .

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