WO2023002541A1 - 媒体搬送装置 - Google Patents

媒体搬送装置 Download PDF

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Publication number
WO2023002541A1
WO2023002541A1 PCT/JP2021/027023 JP2021027023W WO2023002541A1 WO 2023002541 A1 WO2023002541 A1 WO 2023002541A1 JP 2021027023 W JP2021027023 W JP 2021027023W WO 2023002541 A1 WO2023002541 A1 WO 2023002541A1
Authority
WO
WIPO (PCT)
Prior art keywords
medium
recess
side guide
width direction
mounting table
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2021/027023
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
喜一郎 下坂
修一 森川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PFU Ltd
Original Assignee
PFU Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PFU Ltd filed Critical PFU Ltd
Priority to PCT/JP2021/027023 priority Critical patent/WO2023002541A1/ja
Priority to JP2023536242A priority patent/JP7636548B2/ja
Publication of WO2023002541A1 publication Critical patent/WO2023002541A1/ja
Priority to US18/412,213 priority patent/US20240150141A1/en
Anticipated expiration legal-status Critical
Priority to JP2025021837A priority patent/JP2025065517A/ja
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/04—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
    • B65H2405/11—Parts and details thereof
    • B65H2405/114—Side, i.e. portion parallel to the feeding / delivering direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/20—Avoiding or preventing undesirable effects
    • B65H2601/27—Other problems
    • B65H2601/272—Skewing of handled material during handling

Definitions

  • the present disclosure relates to a medium transporting device, and more particularly to a medium transporting device provided with a side guide for regulating the width direction of a medium on a mounting table.
  • a side guide that regulates the width direction of the medium is provided on the mounting table to suppress the occurrence of skew in which the medium is tilted and conveyed.
  • the width direction of the medium is regulated by the side guides, there is a possibility that the medium will be skewed due to, for example, slippage between the medium and the rollers that convey the medium. If the media is skewed, the skewed media may run over the side guides and jam the media.
  • a sheet feeder provided with side guides that regulate the widthwise position of the sheet bundle in contact with the widthwise side surface of the sheet bundle is disclosed (see Patent Document 1).
  • the inner wall surface of the side guide is provided with a concave regulation portion positioned outside the width direction edge of the paper sheet. extended.
  • a medium feeding device includes a pair of edge guides that are provided in a medium stacking unit and have guide surfaces that guide side edges in the width direction that intersects the feeding direction of the medium (see Patent Document 2). .
  • This medium feeding device is provided at a distance from the mounting surface, extends from the guide surfaces of the pair of edge guides in a direction intersecting the guide surfaces, and is mounted on the medium mounting portion. It further includes a sheet number regulating section having a regulating surface for regulating the number of media to be loaded.
  • the medium transport device it is required to suppress the occurrence of media jams while making it easier for the user to place the medium on the placement table.
  • the purpose of the medium transport device is to make it possible for the user to easily place the medium on the placing table and to suppress the occurrence of a medium jam.
  • a medium transporting device includes a mounting table having a mounting surface on which a medium is mounted, a side guide provided on the mounting surface and regulating the width direction of the medium, and a side guide. , and a concave portion formed at an end on the upstream side or the downstream side in the medium conveying direction, the concave portion of the medium being conveyed when the end portion of the conveyed medium in a direction perpendicular to the medium conveying direction enters. It has an upper surface formed so that the ends abut.
  • the medium transport device can suppress the occurrence of a medium jam while facilitating the user to place the medium on the placing table.
  • FIG. 1 is a perspective view showing a medium conveying device 100 according to an embodiment
  • FIG. FIG. 4 is a schematic diagram of the periphery of the side guide 104 viewed from above; 4 is a perspective view of a side guide 104; FIG. 4 is a perspective view of a side guide 104; FIG. FIG. 4 is a schematic view of the upstream end of the side guide 104 as viewed from above;
  • FIG. 4 is a schematic diagram for explaining a medium M that is conveyed while being tilted;
  • FIG. 4 is a schematic diagram for explaining a medium M that is conveyed while being tilted; 4 is a diagram for explaining a transport path inside the medium transport device 100;
  • FIG. 4 is a schematic diagram of the periphery of the side guide 104 viewed from above
  • 4 is a perspective view of a side guide 104
  • FIG. 4 is a perspective view of a side guide 104
  • FIG. 4 is a schematic view of the upstream end of the side
  • FIG. 1 is a block diagram showing a schematic configuration of a medium conveying device 100;
  • FIG. 2 is a diagram showing a schematic configuration of a storage device 140 and a processing circuit 150;
  • FIG. 7 is a flow chart showing an example of the operation of medium reading processing;
  • FIG. 11 is a schematic diagram for explaining another side guide 204;
  • FIG. 11 is a schematic diagram for explaining still another side guide 304.
  • FIG. 11 is a schematic diagram for explaining still another side guide 404.
  • FIG. 8 is a schematic diagram for explaining still another side guide 504.
  • FIG. 8 is a schematic diagram for explaining still another side guide 604.
  • FIG. 7 is a diagram showing a schematic configuration of another processing circuit 750;
  • FIG. 7 is a diagram showing a schematic configuration of another processing circuit 750;
  • FIG. 1 is a perspective view showing a medium conveying device 100 configured as an image scanner.
  • the medium conveying device 100 conveys a medium, which is an original, and captures an image.
  • the medium is paper, thin paper, cardboard, card, booklet, or the like.
  • the media transport device 100 may be a facsimile machine, a copier, a multifunction peripheral (MFP), or the like.
  • MFP multifunction peripheral
  • the medium to be conveyed may be an object to be printed instead of a document, and the medium conveying device 100 may be a printer or the like.
  • arrow A1 indicates the medium transport direction
  • arrow A2 indicates the width direction orthogonal to the medium transport direction.
  • upstream refers to upstream in the medium transport direction A1
  • downstream refers to downstream in the medium transport direction A1.
  • the medium transport device 100 includes a lower housing 101, an upper housing 102, a mounting table 103, a side guide 104, a discharge table 105, a display operation device 106, and the like.
  • the upper housing 102 is arranged to cover the upper surface of the medium transporting device 100, and is engaged with the lower housing 101 by a hinge so that it can be opened and closed when the medium is clogged, when cleaning the inside of the medium transporting device 100, or the like.
  • the mounting table 103 is rotatably engaged with the lower housing 101 .
  • the mounting table 103 is arranged at a position to cover the upper housing 102 and the lower housing 101 when the medium transporting device 100 is not used, and functions as an exterior cover.
  • the mounting table 103 has a mounting surface 103a on which a medium is mounted, and mounts the medium to be conveyed when the medium conveying device 100 is used.
  • an arrow A3 indicates a height direction perpendicular to the placement surface 103a.
  • the side guide 104 is provided on the mounting surface 103a of the mounting table 103 so as to be movable in the width direction A2 orthogonal to the medium conveying direction.
  • the side guide 104 is positioned according to the width of the medium placed on the placing table 103 and regulates the width of the medium.
  • two side guides 104 are spaced apart in the width direction A2.
  • the number of side guides 104 may be one.
  • the ejection table 105 is housed inside the lower housing 101 so as to be able to be pulled out, and holds the ejected medium in the pulled out state. Note that the discharge table 105 may be engaged with the upper housing 102 .
  • the display operation device 106 has a display composed of liquid crystal, organic EL (Electro-Luminescence), etc. and an interface circuit for outputting image data to the display, and displays the image data on the display.
  • the display operation device 106 further includes a touch panel type input device and an interface circuit that acquires signals from the input device, receives operations by the user, and outputs operation signals according to the user's input. Note that the display device and the operation device may be provided separately.
  • FIG. 2 is a schematic diagram of the periphery of the side guide 104 viewed from above.
  • each side guide 104 has a restriction portion 104a and a support portion 104b.
  • the regulating portion 104a abuts on the widthwise end of the medium placed on the placing table 103 to regulate the widthwise direction of the medium.
  • the support portion 104b is provided inside in the width direction A2 with respect to the regulation portion 104a, supports the lower surface of the medium placed on the mounting table 103, and guides the end portion of the medium in the width direction to the regulation portion 104a. .
  • the support portion 104 b prevents the medium from entering between the regulation portion 104 a and the mounting table 103 .
  • the restricting portion 104a and the supporting portion 104b are formed as an integral member. Note that the restricting portion 104a and the supporting portion 104b may be formed of separate members.
  • FIG. 3 and 4 are perspective views of the side guide 104 removed from the mounting table 103.
  • FIG. FIG. 3 is a perspective view of the side guide 104 viewed from the inside in the width direction A2.
  • FIG. 4 is a perspective view of the upstream end of the side guide 104 as seen from the upstream side.
  • the shape of the side guide 104 that regulates the left edge of the medium and the side guide 104 that regulates the right edge of the medium are symmetrical, and the functions of the side guides 104 are the same. The regulating side guide 104 will be described.
  • the regulation portion 104a has a regulation surface 104c that regulates the width direction of the medium.
  • a concave portion 104d is formed at the end of the side guide 104 on the upstream side in the medium transport direction A1.
  • the recess 104d is formed so as to open upstream in the medium transport direction A1 and to open toward the regulation surface 104c of the side guide 104 in the width direction A2.
  • the concave portion 104d is formed so as not to open on the upper surface of the restricting portion 104a in the height direction A3.
  • the length of the concave portion 104d is set to, for example, 1/2 or less of the entire length of the regulation surface 104c. In addition, in the medium transport direction A1, the length of the concave portion 104d is preferably set to 1/4 or less of the entire length of the regulation surface 104c. In the medium transport direction A1, the length of the concave portion 104d is set to 50 mm or less, for example. The length of the concave portion 104d is preferably set to 20 mm or less in the medium transport direction A1.
  • the length of the concave portion 104d is set to, for example, 3/4 or less of the entire length of the restricting portion 104a. In addition, in the width direction A2, the length of the concave portion 104d is preferably set to 1/2 or less of the entire length of the restricting portion 104a. In the width direction A2, the length of the concave portion 104d is set to 1 mm or less, for example. The length of the concave portion 104d in the width direction A2 is preferably set to 0.5 mm or less.
  • the length of the recess 104d is set to, for example, 3/4 or less of the entire length of the regulation surface 104c. In addition, it is preferable that the length of the concave portion 104d in the height direction A3 is set to 1/2 or less of the entire length of the regulation surface 104c. In the height direction A3, the length of the concave portion 104d is set to 10 mm or less, for example. In addition, it is preferable that the length of the concave portion 104d is set to 5 mm or less in the height direction A3.
  • the support portion 104b has a contact surface 104e that contacts the lower surface of the medium placed on the placement table 103.
  • the contact surface 104e is formed around the end on the upstream side in the medium conveying direction A1 so that the height becomes lower (the thickness of the support portion 104b becomes thinner) toward the end.
  • the contact surface 104e is formed so that the height H1 of the region 104f that overlaps with the recess 104d when viewed from the width direction A2 perpendicular to the medium transport direction is lower than the height H2 of the region 104g that does not overlap with the recess 104d.
  • the contact surface 104e is formed such that the height H1 of the region 104f overlapping the recess 104d in the medium transport direction A1 is lower than the height H2 of the region 104g not overlapping the recess 104d.
  • FIG. 5 is a schematic view of the upstream end of the side guide 104 removed from the mounting table 103, viewed from above.
  • the downstream end 104h of the recess 104d in the medium transport direction A1 is formed to be inclined with respect to the medium transport direction A1 and the width direction A2 perpendicular to the medium transport direction.
  • FIGS. 6 and 7 are schematic diagrams for explaining the medium M that is conveyed while being tilted.
  • FIG. 6 is a schematic diagram of the periphery of the side guide 104 viewed from above.
  • 7 is a cross-sectional view taken along the line A-A' of FIG. 6.
  • FIG. 6 and 7 show a state in which the medium M mounted on the mounting table 103 is tilted and conveyed.
  • the recessed portion 104d of the side guide 104 is formed so as to open toward the regulation surface 104c, and has a side surface 104i and an upper surface 104j inside.
  • FIG. 6 when the medium M is conveyed with an inclination, it rotates so that the trailing end (downstream end) faces outward in the width direction A2.
  • the concave portion 104d is formed at the upstream end portion in the medium conveying direction A1 of the regulation surface 104c of the side guide 104, the end portion of the side guide 104 side of the medium M conveyed in an inclined manner enters the concave portion 104d. do.
  • the end of the medium M that has entered the recess 104d strikes a side surface 104i formed within the recess 104d and rises along the side surface 104i.
  • the edge of the medium M abuts a top surface 104j formed in the recess 104d, and the top surface 104j prevents the edge of the medium M from rising further.
  • the upper surface 104j is formed so that when the end of the transported medium in the width direction A2 orthogonal to the medium transport direction enters, the end of the medium comes into contact with the upper surface 104j.
  • the end portion of the medium in the width direction A2 perpendicular to the medium transport direction enters the concave portion 104d to restrict the floating of the medium.
  • the medium conveying device 100 can prevent the medium M that has been conveyed at an angle from rising over the side guide 104, and can prevent the medium from entering the medium conveying path and jamming the medium. .
  • the medium transport device 100 can suppress an increase in the inclination of the medium immediately after the medium begins to skew, and can suppress the occurrence of skew in the medium.
  • the edge of the medium M transported with inclination abuts against the upper surface 104j formed in the recess 104d, the inclination of the medium M is suppressed from increasing further, and the occurrence of the skew of the medium is suppressed. be.
  • the length of the concave portion 104d in the height direction A3 is set to a sufficiently small value so that the edge of the medium M contacts the upper surface 104j earlier.
  • the medium conveying device 100 can quickly bring the edge of the medium M that has been conveyed while being conveyed into contact with the upper surface 104j, thereby minimizing the inclination of the medium.
  • the contact surface 104e of the support portion 104b is formed so that the height of the region 104f overlapping the recess 104d is reduced. Therefore, even when a medium having an upwardly curled edge is conveyed, the edge of the medium can easily enter the concave portion 104 d , and the curled portion of the medium can be prevented from going over the side guide 104 . In addition, when a medium with low stiffness such as thin paper is conveyed, the medium stretches along the contact surface 104e, so that the edge of the medium easily enters the recess 104d, and the edge of the medium moves along the side guide 104. Overcoming is suppressed.
  • the medium conveying device 100 can suppress the occurrence of skew and jam of the medium, especially when a medium with an upwardly curled edge or a thin medium having a low stiffness such as thin paper is conveyed.
  • the contact surface 104e may be formed such that the height of the region 104f overlapping the recess 104d is the same as the height of the region 104g not overlapping the recess 104d.
  • the recess 104d is formed at the upstream end in the medium transport direction A1, and the downstream region of the restriction surface 104c from the recess 104d has a flat surface.
  • the flat surface of the regulating surface 104c is longer than the recess 104d in the medium transport direction A1, and the medium is set along the flat surface of the regulating surface 104c when placed on the mounting table 103.
  • the medium transport device 100 can prevent the medium from being placed on the placement table 103 while being tilted.
  • the concave portion is formed not only at the end portion but also over the entire region of the regulation surface in the medium transport direction A1
  • the medium is set along the concave portion when placed on the mounting table.
  • the user needs to extend the set guide outward once, set the medium, and then narrow the set guide inward to allow the medium to enter the concave portion.
  • the medium transport device 100 the user can easily place the medium because the medium is set along the flat surface of the regulation surface 104c. Therefore, the medium transport device 100 can improve user convenience.
  • the downstream end 104h of the recess 104d is formed to be inclined. Therefore, the medium conveying device 100 can prevent damage to the medium caused by the medium entering the concave portion 104d hitting the end portion 104h. Note that the downstream end 104h of the recess 104d may be formed so as not to be inclined.
  • FIG. 8 is a diagram for explaining the transport path inside the medium transport device 100.
  • the transport path inside the medium transport device 100 includes a medium sensor 111, a feed roller 112, a separation roller 113, a first transport roller 114, a first driven roller 115, an imaging device 116, a second transport roller 117, and a second driven roller 118. etc.
  • each of the feeding roller 112, the separation roller 113, the first conveying roller 114, the first driven roller 115, the second conveying roller 117 and/or the second driven roller 118 is not limited to one, and may be plural. good.
  • the plurality of feeding rollers 112, separation rollers 113, first conveying rollers 114, first driven rollers 115, second conveying rollers 117 and/or second driven rollers 118 each have a width perpendicular to the medium conveying direction A1. They are arranged side by side with a gap in the direction.
  • the upper surface of the lower housing 101 forms the lower guide 101a of the medium transport path
  • the lower surface of the upper housing 102 forms the upper guide 102a of the medium transport path.
  • the medium sensor 111 is arranged upstream from the feed roller 112 and the separation roller 113 .
  • the medium sensor 111 has a contact detection sensor and detects whether or not a medium is mounted on the mounting table 103 .
  • the medium sensor 111 generates and outputs a medium signal whose signal value changes depending on whether or not the medium is mounted on the mounting table 103 .
  • the medium sensor 111 is not limited to a contact detection sensor, and any other sensor capable of detecting the presence or absence of a medium, such as a light detection sensor, may be used as the medium sensor 111 .
  • the feeding roller 112 is provided in the lower housing 101, and separates and feeds the medium placed on the placing table 103 in order from the bottom.
  • the separation roller 113 is a so-called brake roller or retard roller, is provided in the upper housing 102, is arranged to face the feeding roller 112, and rotates in the direction opposite to the medium feeding direction. Note that the feeding roller 112 is provided in the upper housing 102 and the separation roller 113 is provided in the lower housing 101, and the feeding roller 112 feeds the medium placed on the mounting table 103 in order from the top. good.
  • the imaging device 116 is arranged downstream of the first transport roller 114 and captures an image of the medium transported by the first transport roller 114 .
  • the imaging device 116 includes a first imaging device 116a and a second imaging device 116b arranged to face each other with the medium transport path interposed therebetween.
  • the first imaging device 116a has a linear optical system type CIS (Contact Image Sensor) line sensor having CMOS (Complementary Metal Oxide Semiconductor) imaging elements linearly arranged in the main scanning direction.
  • the first imaging device 116a has a lens that forms an image on an imaging device, and an A/D converter that amplifies an electrical signal output from the imaging device and performs analog/digital (A/D) conversion.
  • the first imaging device 116a captures an image of the surface of the medium being conveyed, generates an input image, and outputs the input image, under the control of a processing circuit, which will be described later.
  • the second imaging device 116b has a linear optical system type CIS line sensor having CMOS imaging elements linearly arranged in the main scanning direction.
  • the second imaging device 116b also has a lens that forms an image on the imaging device, and an A/D converter that amplifies the electrical signal output from the imaging device and performs analog/digital (A/D) conversion.
  • the second image capturing device 116b captures an image of the back surface of the medium being conveyed, generates an input image, and outputs the input image, under the control of a processing circuit, which will be described later.
  • the medium transport device 100 may have only one of the first imaging device 116a and the second imaging device 116b to read only one side of the medium.
  • a line sensor of the same magnification optical system type CIS provided with the CMOS imaging device a line sensor of the same magnification optical system type CIS provided with the CCD (Charge Coupled Device) imaging device may be used.
  • a reduction optics type line sensor having a CMOS or CCD imaging device may be used.
  • the medium placed on the mounting table 103 moves between the lower guide 101a and the upper guide 102a in the medium conveying direction A1 by rotating the feeding roller 112 in the direction of the arrow A4 in FIG. 2, that is, in the medium feeding direction. transported towards.
  • the separation roller 113 rotates in the direction of the arrow A5, that is, in the opposite direction to the medium feeding direction, when feeding the medium.
  • the medium is fed between the first conveying roller 114 and the first driven roller 115 while being guided by the lower guide 101a and the upper guide 102a.
  • the medium is fed between the first imaging device 116a and the second imaging device 116b by rotating the first transport roller 114 in the direction of arrow A6.
  • the medium read by the imaging device 116 is ejected onto the ejection table 105 by rotating the second conveying roller 117 in the direction of arrow A7.
  • FIG. 9 is a block diagram showing a schematic configuration of the medium conveying device 100. As shown in FIG.
  • the medium transport device 100 further includes a motor 131, an interface device 132, a storage device 140, a processing circuit 150, etc., in addition to the configuration described above.
  • the motor 131 has one or more motors, and rotates the feed roller 112, the separation roller 113, the first transport roller 114, and the second transport roller 117 according to a control signal from the processing circuit 150 to transport the medium.
  • the first driven roller 115 and/or the second driven roller 118 may be driven by the motor 131 .
  • the first conveying roller 114 and/or the second conveying roller 117 may be provided so as to rotate following the first driven roller 115 or the second driven roller 118 .
  • the interface device 132 has an interface circuit conforming to a serial bus such as USB, for example, and is electrically connected to an information processing device (for example, personal computer, personal digital assistant, etc.) (not shown) to receive an input image and various information. Send and receive.
  • an information processing device for example, personal computer, personal digital assistant, etc.
  • a communication unit having an antenna for transmitting and receiving wireless signals and a wireless communication interface device for transmitting and receiving signals through a wireless communication line according to a predetermined communication protocol may be used.
  • the predetermined communication protocol is, for example, a wireless LAN (Local Area Network).
  • the communication unit may have a wired communication interface device for transmitting and receiving signals through a wired communication line according to a communication protocol such as a wired LAN.
  • the storage device 140 includes memory devices such as RAM (Random Access Memory) and ROM (Read Only Memory), fixed disk devices such as hard disks, or portable storage devices such as flexible disks and optical disks.
  • the storage device 140 also stores computer programs, databases, tables, and the like used for various processes of the medium transport device 100 .
  • the computer program may be installed in the storage device 140 from a computer-readable portable recording medium using a known setup program or the like.
  • the portable recording medium is, for example, a CD-ROM (compact disc read only memory), a DVD-ROM (digital versatile disc read only memory), or the like.
  • the processing circuit 150 operates based on a program stored in the storage device 140 in advance.
  • the processing circuit is, for example, a CPU (Central Processing Unit).
  • a DSP digital signal processor
  • LSI large scale integration
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • the processing circuit 150 is connected to the display operation device 106, the medium sensor 111, the imaging device 116, the motor 131, the interface device 132, the storage device 140, etc., and controls these units. Based on the medium signal received from the medium sensor 111 , the processing circuit 150 performs driving control of the motor 131 , imaging control of the imaging device 116 , acquires an input image from the imaging device 116 , and outputs information via the interface device 132 . Send to processor.
  • FIG. 10 is a diagram showing a schematic configuration of the storage device 140 and the processing circuit 150.
  • FIG. 10 is a diagram showing a schematic configuration of the storage device 140 and the processing circuit 150.
  • the storage device 140 stores a control program 141, an image acquisition program 142, and the like. Each of these programs is a functional module implemented by software running on a processor.
  • the processing circuit 150 reads each program stored in the storage device 140 and operates according to each read program. Thereby, the processing circuit 150 functions as a control section 151 and an image acquisition section 152 .
  • FIG. 11 is a flow chart showing an example of the operation of the medium reading process of the medium conveying device 100.
  • control unit 151 receives an operation signal for instructing reading of the medium from the display operation device 106 or the interface device 132 . Waits until reception (step S101).
  • control unit 151 acquires a medium signal from the medium sensor 111, and determines whether or not a medium is placed on the placing table 103 based on the acquired medium signal (step S102). If no medium is placed on the placing table 103, the control unit 151 terminates the series of steps.
  • control unit 151 drives the motor 131 to rotate the feeding roller 112, the separating roller 113, the first conveying roller 114, and the second conveying roller 117. to convey the medium (step S103).
  • control unit 151 causes the imaging device 116 to image a medium, acquires an input image from the imaging device 116, and outputs the acquired input image by transmitting it to the information processing device via the interface device 132. (Step S104).
  • control unit 151 determines whether or not the medium remains on the mounting table 103 (step S105). When the medium remains on the mounting table 103, the control unit 151 returns the process to step S104 and repeats the processes of steps S104 and S105.
  • control unit 151 controls the motor 131 to stop the feeding roller 112, the separating roller 113, the first conveying roller 114, and the second conveying roller 117 ( Step S106), the series of steps ends.
  • the medium transport device 100 forms the concave portion 104d at the upstream end of the side guide 104 to suppress the floating of the medium when skew occurs. As a result, the medium transport device 100 can suppress the occurrence of a medium jam while making it easier for the user to place the medium on the placement table 103 .
  • the medium transport device 100 can suppress the occurrence of jams of various media such as thin paper, thick paper, wrinkled or torn paper, and suppress the occurrence of media damage.
  • the medium conveying apparatus 100 can suppress the occurrence of skew and jam of the medium without using special parts, and can suppress an increase in apparatus cost.
  • FIG. 12 is a schematic diagram for explaining another side guide 204.
  • FIG. FIG. 12 is a perspective view of the side guide 204 removed from the mounting table 103 as seen from the inside in the width direction A2.
  • the side guide 204 has the same structure and function as the side guide 104 and is used instead of the side guide 104. As shown in FIG. 12, the side guide 204 has a restricting portion 204a and a supporting portion 204b similar to the restricting portion 104a and the supporting portion 104b. The restricting portion 204a has a restricting surface 204c similar to the restricting surface 104c. A concave portion 204d similar to the concave portion 104d is formed at the end of the side guide 204 on the upstream side in the medium transport direction A1. A second recess 204k similar to the recess 204d is formed at the end of the side guide 204 on the downstream side in the medium transport direction A1.
  • the second recessed portion 204k is formed to open downstream in the medium transport direction A1 and open to the regulation surface 204c side of the side guide 204 in the width direction A2.
  • the second concave portion 204k is formed so as not to open on the upper surface of the restricting portion 204a in the height direction A3.
  • the size of the second recess 204k is set to the same size as the size of the recess 204d.
  • the recess 204d has a side surface 204i and a top surface 204j similar to the side surface 104i and the top surface 104j.
  • the second recess 204k has a side surface 204n and a top surface 204o inside.
  • the trailing edge of the medium which has been slightly inclined, is , enter the second recess 204k.
  • the end of the medium that has entered the second recess 204k hits a side surface 204n formed in the second recess 204k and rises along the side surface 204n.
  • the edge of the media abuts a top surface 204o formed in the second recess 204k, which prevents further lifting of the edge of the media.
  • the upper surface 204o is formed so that when the end of the transported medium in the width direction A2 orthogonal to the medium transport direction enters, the end of the medium comes into contact with it.
  • the inclination increases as the medium is conveyed. is likely to climb over the side guide 204 and float up.
  • the medium transporting device can be configured such that when the trailing edge of the medium transported with inclination passes the downstream end of the side guide 204, It is possible to suppress the medium from surmounting the side guide 204 and floating up. Therefore, the medium conveying device can prevent the floating medium from entering the medium conveying path and causing a jam of the medium.
  • the second recess 204k is formed at the downstream end in the medium transport direction A1, and the central portion of the regulation surface 204c has a flat surface. Since the user can set the medium along the flat surface of the regulation surface 204c and can easily place the medium, the medium transport device can improve convenience for the user. .
  • the support portion 204b has a contact surface 204e similar to the contact surface 104e.
  • the contact surface 204e is formed around the end on the upstream side in the medium conveying direction A1 so that the height becomes lower (the thickness of the support portion 204b becomes thinner) toward the end.
  • the contact surface 204e is formed around the end on the downstream side in the medium transport direction A1 such that the height becomes lower (thickness of the support portion 204b becomes thinner) toward the end.
  • the contact surface 204e has a region 204f that overlaps with the recess 204d and a region 204l that overlaps with the second recess 204k when viewed from the width direction A2 orthogonal to the medium conveying direction. Formed to be less than 204g high.
  • the medium conveying device can suppress the occurrence of skew and jam of the medium, especially when conveying a medium with an upwardly curled edge or a weak medium such as thin paper.
  • the contact surface 204e is formed so that the height of the region 204f overlapping the recess 204d and/or the region 204l overlapping the second recess 204k is the same as the height of the region 204g not overlapping the recess 204d and the second recess 204k.
  • downstream end 204h of the recess 204d in the medium transport direction A1 extends in the medium transport direction A1 and in the width direction A2 perpendicular to the medium transport direction. is formed so as to be inclined with respect to Similarly, the upstream end 204m of the second recess 204k in the medium transport direction A1 is formed to be inclined with respect to the medium transport direction A1 and the width direction A2 orthogonal to the medium transport direction.
  • the medium conveying device can prevent the medium entering the second recess 204k from hitting the end 204m and causing damage to the medium.
  • the downstream end 204h of the recess 204d and/or the upstream end 204m of the second recess 204k may be formed so as not to be inclined.
  • the concave portion 204d may be omitted and only the second concave portion 204k may be formed.
  • the medium conveying apparatus facilitates the user to place the medium on the placing table 103, It became possible to suppress the occurrence of jams.
  • FIG. 13 is a schematic diagram for explaining still another side guide 304.
  • FIG. FIG. 13 is a perspective view of the side guide 304 removed from the mounting table 103 as seen from the inside in the width direction A2.
  • the side guide 304 has the same structure and function as the side guide 204 and is used instead of the side guide 204. As shown in FIG. 13, the side guide 304 has a restricting portion 304a and a supporting portion 304b similar to the restricting portion 204a and the supporting portion 204b.
  • the restricting portion 304a has a restricting surface 304c similar to the restricting surface 204c.
  • a recessed portion 304d and a second recessed portion 304k similar to the recessed portion 204d and the second recessed portion 204k are formed at the upstream and downstream end portions of the side guide 304 in the medium transport direction A1.
  • the recessed portion 304d is opened upstream in the medium transport direction A1 and formed to extend across both ends of the side guide 304 in the width direction A2 orthogonal to the medium transport direction.
  • the second recess 304k is formed to open downstream in the medium transport direction A1 and extend across both ends of the side guide 304 in the width direction A2 perpendicular to the medium transport direction.
  • the recessed portion 304d and the second recessed portion 304k are formed so as not to open on the upper surface of the restricting portion 304a in the height direction A3.
  • the recessed portion 304d and the second recessed portion 304k have inside thereof an upper surface 304j and an upper surface 304o similar to the upper surface 204j and the upper surface 204o.
  • the upper surface 304j and the upper surface 304o are formed so that when the edge of the transported medium in the width direction A2 orthogonal to the medium transport direction enters, the edge of the medium contacts.
  • the end of the medium on the side guide 304 side enters the recess 304d or the second recess 304k, and the end of the medium entering the recess 304d or the second recess 304k rises to the top surface 304j. or blocked by the top surface 304o. Therefore, the medium conveying device can prevent the floating medium from entering the medium conveying path and causing a jam of the medium.
  • the recessed portion 304d and the second recessed portion 304k are formed at the ends in the medium transport direction A1, and the central portion of the regulation surface 304c has a flat surface. Since the user can set the medium along the flat surface of the regulation surface 304c and can easily place the medium, the medium transport device can improve convenience for the user. .
  • the support portion 304b has a contact surface 304e similar to the contact surface 204e.
  • the contact surface 304e has a region 304f that overlaps with the recess 304d and a region 304l that overlaps with the second recess 304k when viewed from the width direction A2 orthogonal to the medium conveying direction. It is formed to be lower than the height.
  • the medium conveying device can suppress the occurrence of skew and jam of the medium, especially when conveying a medium having an upwardly curled edge or a weak medium such as thin paper.
  • the contact surface 304e is formed so that the height of the region 304f overlapping the recess 304d and/or the region 304l overlapping the second recess 304k is the same as the height of the region 304g not overlapping the recess 304d and the second recess 304k. may be
  • the downstream end 304h of the recess 304d and the upstream end 304m of the second recess 304k have a width perpendicular to the medium transport direction A1 and the medium transport direction. It is formed so as to be inclined with respect to the direction A2.
  • the medium conveying device can prevent the medium entering the recess 304d or the second recess 304k from hitting the end 304h or the end 304m and causing damage to the medium.
  • the downstream end 304h of the recess 304d and/or the upstream end 304m of the second recess 304k may be formed so as not to be inclined.
  • either one of the recessed portion 304d and the second recessed portion 304k may be omitted, and only the other of the recessed portion 304d and the second recessed portion 304k may be formed.
  • the medium conveying device is configured so that the recessed portion 304d or the second recessed portion 304k extends across both ends of the side guide 304 in the width direction A2. It has become possible to suppress the occurrence of media jams while facilitating
  • FIG. 14 is a schematic diagram for explaining still another side guide 404.
  • FIG. FIG. 14 is a perspective view of the side guide 404 removed from the mounting table 103 as seen from the inside in the width direction A2.
  • the side guide 404 has the same structure and function as the side guide 104 and is used instead of the side guide 104. As shown in FIG. 14, the side guide 404 has a restricting portion 404a and a supporting portion 404b similar to the restricting portion 104a and the supporting portion 104b. However, the upstream end of the support portion 404b is arranged downstream of the upstream end of the restricting portion 404a. The support portion 404 b may not be arranged so as to face the lower housing 101 and not face the mounting table 103 .
  • the restricting portion 404a has a restricting surface 404c similar to the restricting surface 104c.
  • a recess 404d similar to the recess 104d is formed at the upstream end of the side guide 404 in the medium transport direction A1.
  • Recess 404d has side surfaces 404i and top surface 404j similar to side surfaces 104i and top surface 104j therein.
  • a downstream end portion 404h of the concave portion 404d is formed to be inclined with respect to the medium transport direction A1 and a width direction A2 perpendicular to the medium transport direction, similarly to the end portion 104h.
  • the support portion 404b has a contact surface 404e similar to the contact surface 104e.
  • the contact surface 404e is formed such that the height of the region 404f that overlaps with the recess 404d when viewed in the width direction A2 perpendicular to the medium transport direction is lower than the height of the region 404g that does not overlap with the recess 404d.
  • the medium conveying device is configured such that even when the upstream end of the supporting portion 404b is arranged downstream of the upstream end of the regulating portion 404a, the user cannot transfer the medium to the mounting table 103. It has become possible to suppress the occurrence of media jams while facilitating the placement of media.
  • FIG. 15 is a schematic diagram for explaining still another side guide 504.
  • FIG. FIG. 15 is a perspective view of the side guide 504 removed from the mounting table 103 as seen from the inside in the width direction A2.
  • the side guide 504 has the same structure and function as the side guide 204 and is used instead of the side guide 204. As shown in FIG. 15, the side guide 504 has a restricting portion 504a and a supporting portion 504b similar to the restricting portion 204a and the supporting portion 204b. However, the upstream end of the support portion 504b is arranged downstream of the upstream end of the restricting portion 504a, and the downstream end of the supporting portion 504b is located further downstream than the downstream end of the restricting portion 504a. placed upstream.
  • the support portion 504 b may not be arranged so as to face the lower housing 101 and not face the mounting table 103 .
  • the restricting portion 504a has a restricting surface 504c similar to the restricting surface 204c.
  • a recess 504d and a second recess 504k similar to the recess 204d and the second recess 204k are formed at the end of the side guide 504 in the medium transport direction A1.
  • the recess 504d has a side surface 504i and a top surface 504j similar to the side surface 204i and a top surface 204j therein, and the second recess 504k has a side surface 504n and a surface surface 504o similar to the side surface 204n and the surface 204o.
  • the downstream end 504h of the recess 504d and the upstream end 504m of the second recess 504k extend in the medium transport direction A1 and in the width direction A2 orthogonal to the medium transport direction, similarly to the ends 204h and 204m. is formed so as to be inclined with respect to
  • the support portion 504b has a contact surface 504e similar to the contact surface 204e.
  • the contact surface 504e has a region 504f that overlaps with the recess 504d and a region 504l that overlaps with the second recess 504k when viewed from the width direction A2 orthogonal to the medium conveying direction. It is formed to be lower than the height.
  • the concave portion 504d may be omitted and only the second concave portion 504k may be formed.
  • the medium transporting apparatus facilitates the user to place the medium on the placing table 103 even when the end of the support portion 504b is located closer to the center than the end of the restricting portion 504a. In addition, it is possible to suppress the occurrence of media jams.
  • FIG. 16 is a schematic diagram for explaining still another side guide 604.
  • FIG. FIG. 16 is a perspective view of the side guide 604 removed from the mounting table 103 as seen from the inside in the width direction A2.
  • the side guide 604 has the same structure and function as the side guide 304 and is used instead of the side guide 304. As shown in FIG. 16, the side guide 604 has a restricting portion 604a and a supporting portion 604b similar to the restricting portion 304a and the supporting portion 304b. However, the upstream end of the support portion 604b is arranged downstream of the upstream end of the restricting portion 604a, and the downstream end of the supporting portion 604b is located further downstream than the downstream end of the restricting portion 604a. placed upstream.
  • the support portion 604 b may not be arranged so as to face the lower housing 101 and not face the mounting table 103 .
  • the restricting portion 604a has a restricting surface 604c similar to the restricting surface 304c.
  • a recess 604d and a second recess 604k similar to the recess 304d and the second recess 304k are formed at the end of the side guide 604 in the medium transport direction A1.
  • the recess 604d has an upper surface 604j therein, which is similar to the upper surface 304j, and the second recess 604k has an upper surface 604o, which is similar to the upper surface 304o.
  • the downstream end 604h of the recess 604d and the upstream end 604m of the second recess 604k extend in the medium transport direction A1 and in the width direction A2 perpendicular to the medium transport direction, similarly to the ends 304h and 304m. is formed so as to be inclined with respect to
  • the support portion 604b has a contact surface 604e similar to the contact surface 304e.
  • the contact surface 604e has a region 604f that overlaps with the recess 604d and a region 604l that overlaps with the second recess 604k when viewed in the width direction A2 orthogonal to the medium transport direction. It is formed to be lower than the height.
  • either one of the recessed portion 604d and the second recessed portion 604k may be omitted, and only the other of the recessed portion 604d and the second recessed portion 604k may be formed.
  • the medium transporting apparatus facilitates the user to place the medium on the placing table 103 even when the end of the support portion 604b is located closer to the center than the end of the restricting portion 604a. In addition, it is possible to suppress the occurrence of media jams.
  • FIG. 17 is a diagram showing a schematic configuration of a processing circuit 750 in a medium conveying device according to still another embodiment.
  • the processing circuit 750 is used in place of the processing circuit 150 of the medium conveying device 100 and performs medium reading processing and the like instead of the processing circuit 150 .
  • the processing circuit 750 has a control circuit 751, an image acquisition circuit 752, and the like. Each of these units may be composed of an independent integrated circuit, microprocessor, firmware, or the like.
  • the control circuit 751 is an example of a control section and has the same function as the control section 151.
  • the control circuit 751 receives an operation signal from the display operation device 106 or the interface device 132 and a medium signal from the medium sensor 111 .
  • the control circuit 751 controls the motor 131 based on the received information.
  • the image acquisition circuit 752 is an example of an image acquisition section and has the same function as the image acquisition section 152.
  • the image acquisition circuit 752 acquires an input image from the imaging device 116 and outputs it to the interface device 132 .
  • the medium transporting apparatus can facilitate the user to place the medium on the placing table 103 and suppress the occurrence of a medium jam. became.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
PCT/JP2021/027023 2021-07-19 2021-07-19 媒体搬送装置 Ceased WO2023002541A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/JP2021/027023 WO2023002541A1 (ja) 2021-07-19 2021-07-19 媒体搬送装置
JP2023536242A JP7636548B2 (ja) 2021-07-19 2021-07-19 媒体搬送装置
US18/412,213 US20240150141A1 (en) 2021-07-19 2024-01-12 Medium conveying apparatus
JP2025021837A JP2025065517A (ja) 2021-07-19 2025-02-13 媒体搬送装置

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PCT/JP2021/027023 WO2023002541A1 (ja) 2021-07-19 2021-07-19 媒体搬送装置

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04286559A (ja) * 1991-03-13 1992-10-12 Toshiba Corp 用紙給紙装置
JPH10265062A (ja) * 1997-03-10 1998-10-06 Hewlett Packard Co <Hp> 媒体入力トレイ機構とイメージ形成装置
JPH11334889A (ja) * 1998-05-29 1999-12-07 Canon Inc シート給送装置及びこの装置を備えた画像記録装置
JP2002284362A (ja) * 2002-03-25 2002-10-03 Canon Inc 給紙装置及びこれを備えた画像形成装置
KR100976567B1 (ko) * 2009-01-07 2010-08-17 성균관대학교산학협력단 급지 카세트
JP2012030960A (ja) * 2010-08-02 2012-02-16 Canon Inc シート給送装置及び画像形成装置
JP2015187028A (ja) * 2014-03-26 2015-10-29 京セラドキュメントソリューションズ株式会社 原稿載置トレイ、原稿搬送装置及び画像形成装置
JP2018100174A (ja) * 2016-12-21 2018-06-28 セイコーエプソン株式会社 媒体給送装置、画像読取装置及び記録装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000062964A (ja) 1998-08-25 2000-02-29 Murata Mach Ltd 給紙カセット
JP6566795B2 (ja) 2015-09-03 2019-08-28 キヤノン株式会社 シート給送装置及び画像形成装置
JP6702706B2 (ja) 2015-12-09 2020-06-03 キヤノン株式会社 シート給送装置および画像形成装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04286559A (ja) * 1991-03-13 1992-10-12 Toshiba Corp 用紙給紙装置
JPH10265062A (ja) * 1997-03-10 1998-10-06 Hewlett Packard Co <Hp> 媒体入力トレイ機構とイメージ形成装置
JPH11334889A (ja) * 1998-05-29 1999-12-07 Canon Inc シート給送装置及びこの装置を備えた画像記録装置
JP2002284362A (ja) * 2002-03-25 2002-10-03 Canon Inc 給紙装置及びこれを備えた画像形成装置
KR100976567B1 (ko) * 2009-01-07 2010-08-17 성균관대학교산학협력단 급지 카세트
JP2012030960A (ja) * 2010-08-02 2012-02-16 Canon Inc シート給送装置及び画像形成装置
JP2015187028A (ja) * 2014-03-26 2015-10-29 京セラドキュメントソリューションズ株式会社 原稿載置トレイ、原稿搬送装置及び画像形成装置
JP2018100174A (ja) * 2016-12-21 2018-06-28 セイコーエプソン株式会社 媒体給送装置、画像読取装置及び記録装置

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