JP2014099825A - Image reader - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image reader which can sufficiently transport a second medium narrower than a first medium.SOLUTION: A card introduced from a card introduction port 121 is transported on an extension part 163, and moves onto a body part 162 from the extension part 163. Since the extension part 163 extends from the body part 162, the card is prevented from being caught by a CIS holder 61 when the card moves onto the body part 162 from the card extension part 163. Thus, occurrence of a jam of the card can be suppressed. As a result, the card can sufficiently be transported. The extension part 163 extends toward a front side to a position of the card introduction port 121 in forward/backward directions. Consequently, the card is transported on the extension part 163 from immediately after the insertion into the card introduction port 121. Thus, the card is prevented from being caught by an other member until it reaches onto the extension part 163, and the card can more sufficiently be transported.

Description

  The present invention relates to an image reading apparatus.

  The image reading apparatus disclosed in Patent Document 1 includes a housing. An inlet for introducing a sheet is formed on the back side of the housing. On the other hand, a discharge port for discharging the sheet is formed on the front side of the housing. A conveyance path from the introduction port to the discharge port is formed inside the housing. An image reading unit is provided in the conveyance path. Further, a pair of conveyance rollers is provided on each of the introduction port side and the discharge port side of the image reading unit.

  The sheet introduced from the introduction port is conveyed along the conveyance path by the conveyance roller pair. During the conveyance of the sheet, an image on the surface of the sheet is read by the image reading unit.

  The image reading device disclosed in Patent Document 1 can also read an image drawn on a card that is narrower and thicker than a sheet. Specifically, a part of the discharge port also serves as a card introduction port for introducing a card and a card discharge port for discharging a card. In addition, a mechanism is provided for rotationally driving the conveying roller pair in one direction and the other direction.

  When a card is inserted into the card introduction port, the conveyance roller pair is rotated in the direction opposite to that during conveyance of the sheet, and the card is drawn into the card introduction port by the conveyance roller pair. When the card passes through the image reading unit, the rotation direction of the conveyance roller pair is reversed, and the conveyance roller pair is rotationally driven in the same direction as the conveyance of the sheet. Thereby, the card conveyance direction is reversed, and the card is conveyed toward the card discharge port. During the conveyance of the card, the image on the card is read by the image reading unit.

JP 2012-100115 A

  In order to convey the sheet introduced from the introduction port satisfactorily, the upper surface of the image reading unit is disposed on the same plane as the upper surface of the conveyance path on the discharge port side or more than the image reading unit. It is placed at a high position.

  However, in the above-described configuration, a part of the discharge port also serves as a card introduction port for introducing a card. Therefore, when the upper surface of the image reading unit is arranged at a position higher than the upper surface of the transport path on the discharge port side, when the card is introduced from the card introduction port, the upper surface of the image reading unit and the image reading unit There is a risk that the card may jam due to the card being caught on the step with the upper surface of the transport path on the discharge port side.

  An object of the present invention is to provide an image reading apparatus that can favorably transport a second medium such as a card that is narrower than a first medium such as a sheet.

  In order to achieve the above object, an image reading apparatus according to the present invention includes a first housing and a second housing positioned below the first housing, and the first housing and the second housing. Between the body and the first introduction port formed on one side in the first direction and configured to introduce the first medium, and between the first housing and the second housing, Between the first discharge port formed on the other side of the first direction and configured to discharge the first medium, and between the first housing and the second housing, the first discharge port. A second introduction port formed so as to partially overlap with the outlet and configured to introduce a second medium narrower than the first medium; and the first casing and the second casing In the meantime, it is connected to the first discharge port, extends in the first direction, and is configured to convey the first medium and the second medium. A housing formed with a conveyance path, a reading unit configured to read an image formed on the first medium and the second medium, and holding the reading unit, the second casing A holding portion provided below the common conveyance path of the body, wherein the holding portion is the other in the first direction at the same position as the second introduction port in the second direction orthogonal to the first direction. An extending portion extending to the side is provided.

  According to this configuration, the second medium introduced from the second introduction port is transported on the extension part and moves from the extension part to the holding part. Since the extending part extends from the holding part, it is possible to suppress the second medium from being caught by the holding part when the second medium moves from the extending part onto the holding part. Therefore, it is possible to suppress the occurrence of jam in the second medium. As a result, the second medium can be transported satisfactorily.

  The holding portion is formed with a first recess formed to open upward, contact glass is disposed in the first recess, and the reading portion is provided below the contact glass and extends from the upper surface of the contact glass. The upper surface of the protruding portion may be located on the same plane defined by the first direction and the second direction.

  Since the upper surface of the contact glass and the upper surface of the extension part are located on the same plane, it is possible to suppress the second medium conveyed on the extension part from being caught by the contact glass. Moreover, it can suppress that a 2nd medium catches on an extension part, when the 1st medium conveyed on a common conveyance path moves on an extension part from contact glass. As a result, the first medium and the second medium can be transported satisfactorily.

  The holding portion is opened upward and is housed in a second recess formed in the second housing, and the second housing includes a first edge portion provided on both outer sides of the extending portion in the second direction, and A sum of the length of the first edge in the second direction, the length of the second edge in the second direction, and the length of the extension in the second direction is the second edge. It may coincide with the length.

  Thereby, it can suppress that a clearance gap produces between a 1st edge part and an extension part, and between a 2nd edge part and an extension part. Therefore, when the second medium is transported on the extension part, it is possible to suppress the second medium from being caught by the first edge part and the second edge part. As a result, the second medium can be transported better.

  The extending portion is formed with a notch cut out from the other side in the second direction toward the one side in the second direction, provided in the notch in the second direction, and introduced from the second introduction port. You may provide the introduction roller comprised so that two media may be introduced into a common conveyance path.

  The introduction roller can introduce the second medium into the common transport path.

  According to the present invention, it is possible to satisfactorily introduce the second medium into the second introduction port.

FIG. 1A is a perspective view of the image reading apparatus 1 according to an embodiment of the present invention as viewed from the upper left front, and shows a state in which the cover 3 is closed. FIG. 1B is a perspective view of the image reading apparatus 1 as viewed from the upper right rear and shows a state in which the cover 3 is closed. FIG. 2 is a perspective view of the image reading apparatus 1 as viewed from the upper right front, and shows a state where the cover 3 is opened. FIG. 3 is a plan view of the image reading apparatus 1 and shows a state in which the cover is opened and the upper housing 14 is disposed at the maintenance position. FIG. 4 is a plan view of the vicinity of the card introduction port 121 at the front end portion of the lower housing 13. FIG. 5 is a cross-sectional view of the image reading apparatus 1. FIG. 6 is an explanatory diagram schematically showing that the sheet discharge port 202 and the card introduction port 121 overlap at least partially. FIG. 7 is an explanatory diagram schematically showing the vicinity of the card introduction port 121 in the lower housing 13 of the image reading apparatus 1. FIG. 8 is an explanatory diagram schematically showing a front portion of the lower housing 13 of the image reading apparatus 1 as viewed from above.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The image reading device 1 is an example of a specific aspect of the image reading device and the conveying device of the present invention. In FIG. 1A, the front cover 22 side is defined as the front side of the apparatus, and the side that comes to the left hand when facing the front cover 22 is defined as the left side, and the front, rear, left, and right directions are displayed. And each direction shown after FIG. 1B is displayed corresponding to each direction shown in FIG. 1A. Hereinafter, each component provided in the image reading apparatus 1 will be described with reference to FIG. 1A and the like.

<Appearance>

  The image reading apparatus 1 includes a housing 2 and a cover 3.

<Case>

  The housing 2 includes a left side plate part 11, a right side plate part 12, a lower case 13 and an upper case 14.

  The left side plate part 11 and the right side plate part 12 are arranged at intervals in the left-right direction.

  The lower housing 13 and the upper housing 14 are disposed between the left side plate portion 11 and the right side plate portion 12.

  The lower housing 13 is attached to the left side plate portion 11 and the right side plate portion 12. The lower housing 13 includes a first edge 165L and a second edge 165R on the front end side.

  On the left front lower end portion and the right front lower end portion of the upper housing 14, shaft portions (not shown) are formed to protrude to the left side and the right side, respectively. Then, the left and right shaft portions are rotatably supported by the left side plate portion 11 and the right side plate portion 12, respectively, so that the upper housing 14 has a normal position shown in FIG. 2 and a maintenance position shown in FIG. It is provided so that rotation is possible between them.

  As shown in FIG. 2, the upper housing 14 overlaps the lower housing 13 from above at a normal position. The upper surface 14U of the upper casing 14 positioned at the normal position is positioned one level lower than the upper surfaces 11U and 12U of the left plate portion 11 and the right plate portion 12. Further, the front surface 14F of the upper housing 14 located at the normal position is located at a position recessed by one step further to the rear side than the front surfaces 11F and 12F of the left plate portion 11 and the right plate portion 12.

  In addition, the upper housing 14 is deployed to the front side with respect to the lower housing 13 at the maintenance position, and extends forward and upward from the front end portion of the lower housing 13.

<Cover>

  The cover 3 includes an upper cover 21 and a front cover 22.

  The base end portion of the upper cover 21 is rotatably supported by the rear upper end portions of the left side plate portion 11 and the right side plate portion 12 of the housing 2. Thereby, the upper cover 21 is provided so as to be rotatable between a closed position shown in FIGS. 1A and 1B and an open position shown in FIG.

  The upper cover 21 overlaps the lower housing 13 and the upper housing 14 from above in the closed position.

  Further, the upper cover 21 extends rearward and upward from the rear upper end of the housing 2 at the open position.

  The front cover 22 is provided so as to be rotatable between a bent position shown in FIG. 1A and an extended position shown in FIG.

  Further, the front cover 22 extends substantially on the same plane as the upper cover 21 at the extended position. With the upper cover 21 in the open position and the front cover 22 in the extended position, the upper cover 21 and the front cover 22 are rearward and upward from the rear upper end of the housing 2 as shown in FIG. The tray extends to form a sheet SH as an example of the first medium fed into the housing 2. The sheet SH is, for example, paper or an OHP sheet.

  The rear end edge 31 of the lower casing 13 is positioned higher than the front end edge 32 of the lower casing 13. As shown in FIGS. 3 and 5, the lower housing 13 has an inclined portion 33 and a flat portion 34. The inclined portion 33 extends forward and downward from the rear edge 31 to a position having the same height as the front edge 32. The flat portion 34 extends from the inclined portion 33 to the front edge 32.

  As shown in FIG. 2, the rear edge 71 of the lower surface 14 </ b> B of the upper housing 14 is positioned above the inclined portion 33 of the lower housing 13 with a space therebetween. The front end edge 72 of the lower surface 14B is positioned above the front end edge 32 of the upper surface 13U of the lower housing 13 with a space therebetween. As shown in FIGS. 3 and 5, the upper housing 14 has an inclined portion 73 and a flat portion 74. The inclined portion 73 extends from the rear end edge 71 to a position having the same height as the front end edge 72 in parallel with the inclined portion 33 in the front lower direction. The flat portion 34 extends from the inclined portion 73 to the front edge 72 in parallel with the flat portion 34 of the lower housing 13.

  A sheet introduction port 201, a sheet discharge port 202, and a sheet conveyance path 203 are formed between the upper housing 14 and the lower housing 13. The sheet introduction port 201 is an example of a first introduction port. The sheet discharge port 202 is an example of a first discharge port. The sheet introduction port 201 is formed between the rear edge 71 of the upper housing 14 and the inclined portion 33 of the lower housing 13 and is opened rearward and upward. The sheet discharge port 202 is formed between the front edge 72 of the upper housing 14 and the front edge 32 of the lower housing 13 and is opened forward. The sheet conveyance path 203 connects the sheet introduction port 201 and the sheet discharge port 202. The sheet conveyance path 203 includes a space between the inclined portion 73 of the upper housing 14 and the inclined portion 33 of the lower housing 13 and a space between the flat portion 74 of the upper housing 14 and the flat portion 34 of the lower housing 13. Space.

  The sheet SH introduced from the sheet introduction port 201 passes through the sheet conveyance path 203 in the housing 2 and is discharged from the sheet discharge port 202. Hereinafter, along with the flow of the sheet SH, each component included in the image reading apparatus 1 will be described.

  The image reading apparatus 1 includes a supply roller 41, a separation piece 81, an LF roller 42, an LF pinch roller 82, a card LF roller 43, a card LF pinch roller 83, a discharge roller 44, a discharge pinch roller 84, a card discharge roller 45, and a card discharge. A pinch roller 85 is provided.

  As shown in FIG. 3, the supply roller 41 includes two rollers. Two rollers of the supply roller 41 are attached to the rotation shaft 51. The supply roller 41 is disposed at the center of the inclined portion 33 in the left-right direction. The rotation shaft 51 extends in the left-right direction inside the lower housing 13 and is rotatably held by the lower housing 13.

  The separation piece 81 is made of rubber, for example. A base end portion of the separation piece 81 is attached to the upper housing 14. The separation piece 81 is in elastic contact with the peripheral surface of the supply roller 41. A plurality of sheets SH can be separated into a single sheet and conveyed by the separation piece 81 and the supply roller 41. The sheet SH is conveyed toward the front. Therefore, in this embodiment, the front is the downstream side in the sheet conveyance direction, and the rear is the upstream side in the sheet conveyance direction.

  The LF roller 42 and the LF pinch roller 82 are located downstream of the supply roller 41 and the separation piece 81 in the sheet conveying direction. The LF roller 42 includes two rollers. Two rollers of the LF roller 42 are attached to the rotation shaft 53. The LF pinch roller 82 includes two pinch rollers. Two pinch rollers of the LF pinch roller 82 are attached to the rotation shaft 91. As shown in FIG. 5, the peripheral surface of the LF pinch roller 82 is in contact with the peripheral surface of the LF roller 42 from above. When the LF roller 42 is driven to rotate, the LF pinch roller 82 is driven and rotated by the LF roller 42.

  The card LF roller 43 is disposed on the right side of the LF roller 42 at a spaced position. The card LF roller 43 is attached to a rotation shaft 53 that is common to the LF roller 42. The card LF pinch roller 83 is disposed at a position spaced apart on the right side of the LF pinch roller 82. The card LF pinch roller 83 includes two pinch rollers as shown in FIG. Two pinch rollers of the card LF pinch roller 83 are attached to the rotation shaft 91. As shown in FIG. 5, the peripheral surfaces of the two pinch rollers of the card LF pinch roller 83 are adjacent to the left and right sides of the peripheral surface of the card LF roller 43 of the lower housing 13 with a small space therebetween.

  3 and 5, the image reading apparatus 1 includes a first reading unit 100 and a second reading unit 60 on the downstream side of the LF roller 42 and the LF pinch roller 82 in the sheet conveying direction. The first reading unit 100 includes a contact image sensor (hereinafter referred to as “CIS”) holder 101, a CIS unit 102, and a contact glass 103. The second reading unit 60 includes a CIS holder 61, a CIS unit 62, and a contact glass 63.

  The CIS holder 61 is an example of a holding unit provided below the common conveyance path 125 shown in FIG. 5 of the lower housing 13 as an example of the second housing. The CIS holder 61 is accommodated in a recess 64 as an example of a second recess formed in the flat portion 34 of the lower housing 13. The recess 64 includes a first region 64A and a second region 64B, as shown in FIG. The first area 64A is located behind the second area 64B. The first region 64A is a space formed by the front side surface 641, the rear side surface 642, the lower surface 645, and the left side surface 643 and the right side surface 644 shown in FIG. The second region 64B is a space formed by the side surface 647 of the first edge 165L, the side surface 648 and the lower surface 649 of the second edge 165R shown in FIG.

  The CIS holder 61 includes a main body part 162 and an extension part 163.

  The main body 162 includes a front plate 621, a rear plate 622, a left plate 623, a right plate 624 and a bottom plate 625. The front plate 621 extends in the left-right direction. The rear plate 622 extends in parallel with the front plate 621 at the same position in the left-right direction as the front plate 621 with a space behind the front plate 621. The left side plate 623 connects the left end edges of the front side plate 621 and the rear side plate 622. The right side plate 624 connects the right end edges of the front side plate 621 and the rear side plate 622. The bottom plate 625 is installed between lower end edges of the front plate 621, the rear plate 622, the left plate 623 and the right plate 624. Accordingly, a recess 626 as an example of a first recess surrounded by the front plate 621, the rear plate 622, the left plate 623, the right plate 624, and the bottom plate 625 is formed in the main body 162.

  The main body 162 is housed in the first region 64 </ b> A of the recess 64. The front side plate 621, the rear side plate 622, the left side plate 623, and the right side plate 624 are in contact with the front side surface 641, the rear side surface 642, the left side surface 643, and the right side surface 644 of the lower housing 13, respectively.

  The extension part 163 is formed integrally with the main body part 162. The extension part 163 is connected to the front side plate 621 of the main body part 162. The extending part 163 extends forward from the front plate 621 on the right end side of the main body part 162. The extension part 163 extends to the front side at the same position in the left-right direction as a card introduction port 121 described later as an example of the second introduction port. The extending part 163 extends forward to the position of the card introduction port 121 in the front-rear direction. That is, the extension part 163 extends to the position of the front end edge 32 of the lower housing 13 as shown in FIG. As a result, the card CA inserted into the card introduction port 121 is conveyed on the extending portion 163 immediately after the insertion. Therefore, it is possible to suppress the card CA inserted into the card introduction port 121 from being caught by another member before reaching the extension portion 163. As a result, the card CA can be conveyed better. The length L1 of the extending portion 163 in the left-right direction is the same as the length of the card introduction port 121 in the left-right direction. Thereby, it is possible to suppress the card CA introduced from the card introduction port 121 from being caught by the first edge portion 165L and the second edge portion 165R adjacent to the extending portion 163 in the left-right direction. As a result, the card CA can be conveyed better. When a plurality of extending portions 163 are provided in the left-right direction as shown in FIG. 8, “the length of the extending portion 163 in the left-right direction” is, for example, the right-side extension from the left edge of the left-side extending portion 163. This is the distance in the left-right direction to the right edge of the protruding portion 163. The upper surface of the extending portion 163 is continuous with the upper end surface of the front plate 621.

  The extension part 163 is accommodated in the second region 64 </ b> B of the recess 64. The left end surface and the right end surface of the extending portion 163 are in contact with the side surface 647 of the first edge portion 165L and the side surface 648 of the second edge portion 165R, respectively. In other words, the first edge portion 165L and the second edge portion 165R are provided on both outer sides of the extending portion 163 in the left-right direction. As shown in FIG. 7, the upper surface of the extending portion 163 is disposed on the same plane F as the upper surfaces of the first edge portion 165L and the second edge portion 165R. As shown in FIG. 8, the length of the extending portion 163 in the left-right direction is L1, the length of the first edge portion 165L is L2, the length of the second edge portion 165R is L3, and the length of the CIS holder 61 is L4. Then, in the left-right direction, the sum of the length L1 of the extension portion 163, the length L2 of the first edge portion 165L, and the length L3 of the second edge portion 165R coincides with the length L4 of the CIS holder 61. Yes. The length in the left-right direction of a card introduction port 121 to be described later is equal to the length L1 in the left-right direction of the extending portion 163. The front end edge of the extending portion 163 matches the position in the front-rear direction and the left-right direction with a card inlet 121 described later.

  The CIS unit 62 is accommodated in a recess 626 that is formed by opening upward in the CIS holder 61. For example, an LED light source, a lens, and an image sensor are provided inside the CIS unit 62. The contact glass 63 is made of a colorless and transparent resin. The contact glass 63 is in contact with the upper ends of the front side plate 621, the rear side plate 622, the left side plate 623, and the right side plate 624 from above to close the recess 626. As shown in FIG. 7, the upper surface of the contact glass 63 is disposed on the same plane F as the upper surface of the extending portion 163.

  That is, the CIS unit 62 is provided below the contact glass 63.

  The CIS holder 101 is housed in a recess 104 formed in the flat portion 74 of the upper housing 14.

  The CIS holder 101 includes a front side plate 1021, a rear side plate 1022, a left side plate 1023, a right side plate 1024, and a bottom plate 1025. The front side plate 1021 extends in the left-right direction. The rear plate 1022 extends in parallel with the front plate 1021 at the same position in the left-right direction as the front plate 1021 with a space behind the front plate 1021. The left side plate 1023 connects the left end edges of the front side plate 1021 and the rear side plate 1022. The right side plate 1024 connects the right end edges of the front side plate 1021 and the rear side plate 1022. The bottom plate 1025 is an installation plate that is installed between upper end edges of the front plate 1021, the rear plate 1022, the left plate 1023, and the right plate 1024. Accordingly, the CIS holder 101 is formed with a recess 1026 surrounded by the front side plate 1021, the rear side plate 1022, the left side plate 1023, the right side plate 1024 and the bottom plate 1025.

  The CIS holder 101 is accommodated in the recess 104. The front side plate 1021, the rear side plate 1022, the left side plate 1023, and the right side plate 1024 are in contact with the front side surface 1041, the rear side surface 1042, the left side surface 1043, and the right side surface 1044 of the upper housing 14, respectively.

  The CIS unit 102 is accommodated in a recess 1026 formed by being opened downward by the CIS holder 101. For example, an LED light source, a lens, and an image sensor are provided inside the CIS unit 102. The contact glass 103 is made of a colorless and transparent resin. The contact glass 103 is in contact with the lower ends of the front side plate 1021, the rear side plate 1022, the left side plate 1023, and the right side plate 1024 from below to close the recess 1026.

  Images on both sides of the sheet SH conveyed by the LF roller 42 and the LF pinch roller 82 are read by the first reading unit 100 and the second reading unit 60.

  The discharge roller 44 and the discharge pinch roller 84 are located downstream of the CIS unit 102 and the CIS unit 62 in the sheet conveyance direction. The discharge roller 44 includes two rollers. Two rollers of the discharge roller 44 are attached to the rotation shaft 56. Each roller of the discharge roller 44 is disposed in a notch 164 formed in the extending portion 163 of the CIS holder 61. The discharge pinch roller 84 includes two pinch rollers. Two pinch rollers of the discharge pinch roller 84 are attached to the rotating shaft 94. The peripheral surface of the discharge pinch roller 84 is in contact with the peripheral surface of the discharge roller 44 from above as shown in FIG. When the discharge roller 44 is driven to rotate, the discharge pinch roller 84 is driven to rotate by the discharge roller 44.

  The card discharge roller 45 and the card discharge pinch roller 85 are located downstream of the CIS unit 102 and the CIS unit 62 in the sheet conveyance direction. The card discharge roller 45 includes two rollers provided in the notch 164 of the extending portion 163 in the CIS holder 61. Two rollers of the card discharge roller 45 are attached to the rotation shaft 56. The card discharge pinch roller 85 includes two pinch rollers. Two pinch rollers of the card discharge pinch roller 85 are attached to the rotating shaft 94. The peripheral surface of the card discharge pinch roller 85 is in contact with the peripheral surface of the card discharge roller 45 from above as shown in FIG. When the card discharge roller 45 is driven to rotate, the card discharge pinch roller 85 is rotated following the card discharge roller 45.

<Card transport path>

  The image reading apparatus 1 can read an image drawn on a card CA as an example of a second medium that is narrower than the sheet SH. The card CA is a medium that is narrower and thicker than paper. The card CA is, for example, a business card, a cash card, a membership card or a license.

  In order to read the image of the card CA, as shown in FIG. 2, the card introduction port 121 is formed at a portion overlapping the card discharge roller 45 and the card discharge pinch roller 85 in the sheet discharge port 202 in the front-rear direction. In the present embodiment, a part of the lower side of the card introduction port 121 overlaps a part of the right side of the sheet discharge port 202 as shown in FIG. Both the sheet SH and the card CA can pass through this overlapping portion OL. The width of the card introduction port 121 in the left-right direction is the same as the width of the extending portion 163 in the left-right direction. The width of the card inlet 121 in the left-right direction is larger than the short side length (53.98 mm) of the international standard ID-1 card size by the International Organization for Standardization (ISO) / International Electrotechnical Commission (IEC). The length of the long side (85.60 mm) is smaller.

  The card transport path 124 as an example of the second transport path includes a space between the flat portion 34 of the upper surface 13U of the lower housing 13 and the flat portion 74 of the lower surface 14B of the upper housing 14 and the upper surface 13U of the lower housing 13. Is formed in a space below the inclined portion 33.

  A space between the flat portion 34 on the upper surface 13U of the lower housing 13 and the flat portion 74 on the lower surface 14B of the upper housing 14 is a common transport path 125 through which both sheets and cards are transported.

  As shown in FIGS. 3 and 5, the card passage port 122 is formed at a position overlapping the card introduction port 121 in the front-rear direction between the front lower end portion of the inclined portion 33 of the lower housing 13 and the flat portion 34. ing.

  The front end of the card transport path 124 is connected to the card introduction port 121. The card passage port 122 is provided in the middle of the card transport path 124. The common transport path 125 communicates with the space below the inclined portion 33 of the lower housing 13 through the card passage port 122. Therefore, the card CA can go back and forth between the common conveyance path 125 and the lower portion of the inclined portion 33 of the lower housing 13 through the card passage port 122.

<Scanning sheet image>

  When reading the image of the sheet SH in the image reading apparatus 1, as shown in FIGS. 2 and 5, the upper cover 21 is disposed in the open position, and the front cover 22 is disposed in the extended position. Then, the sheet SH is placed on a tray formed by the upper cover 21 in the open position and the front cover 22 in the extended position. Further, the tray 4 is located at the closed position. The displacement of the upper cover 21 to the open position is detected by a sensor (not shown). When the upper cover 21 is displaced to the open position, the sheet reading mode capable of conveying the sheet SH is set. When the sheet reading mode is entered and a reading button (not shown) is pressed by the user, the supply roller 41 and the like are rotated counterclockwise as viewed from the right side, and reading of the image of the sheet SH is executed.

  The sheet SH placed on the tray is inserted into the sheet introduction port 201 until the leading end thereof contacts the supply roller 41 and the separation piece 81.

  Thereafter, the supply roller 41 is rotated counterclockwise as viewed from the right side. By the rotation of the supply roller 41, a conveying force is applied from the peripheral surface of the supply roller 41 to the lower surface of the sheet SH, and the sheet SH is conveyed toward the LF roller 42 and the LF pinch roller 82. When the leading end of the sheet SH is sandwiched between the supply roller 41 and the separation piece 81, the sheet SH is separated one by one, and one sheet SH passes between the supply roller 41 and the separation piece 81. Can pass.

  The LF roller 42 and the card LF roller 43 are rotated counterclockwise when viewed from the right side. The LF pinch roller 82 and the card LF pinch roller 83 rotate clockwise as viewed from the right side. When the leading end of the sheet SH that has passed between the supply roller 41 and the separation piece 81 reaches the contact portion of the peripheral surfaces of the LF roller 42 and the card LF roller 43, the sheet SH is moved by the LF roller 42 and the card LF roller 43. A conveyance force is applied to the.

  The sheet SH that has passed between the LF roller 42, the LF pinch roller 82, the card LF roller 43, and the card LF pinch roller 83 passes over the contact glasses 63 and 103. At this time, light is emitted from the LED light sources of the CIS units 62 and 102 to the sheets SH on the contact glasses 63 and 103, respectively. Then, the reflected light on the sheet SH is received by the image sensors of the CIS units 62 and 102, whereby reading of images drawn on both surfaces of the sheet SH is achieved.

  The discharge roller 44 and the card discharge roller 45 are rotated counterclockwise when viewed from the right side. The discharge pinch roller 84 and the card discharge pinch roller 85 rotate clockwise as viewed from the right side. When the leading end of the sheet SH that has passed over the contact glasses 63 and 103 reaches the discharge roller 44 and the card discharge roller 45, a conveying force is applied to the sheet SH from the discharge roller 44 and the card discharge roller 45.

  The sheet SH conveyed between the discharge roller 44, the discharge pinch roller 84, the card discharge roller 45, and the card discharge pinch roller 85 passes through the sheet discharge port 202 and is discharged out of the housing 2.

<Read card image>

  When the image of the card CA is read, the card CA is inserted into the card introduction port 121 with the short side of the card CA as the head, that is, along the short side of the card CA in the left-right direction. At this time, the lower surface of the card CA is in contact with the upper surface of the extending portion 163 of the CIS holder 61.

  When the card CA is inserted into the card introduction port 121, the card discharge roller 45 is rotated clockwise as viewed from the right side. The card discharge pinch roller 85 rotates counterclockwise as viewed from the right side as the card discharge roller 45 rotates. A conveying force is applied to the card CA from the card discharge roller 45 and the card discharge pinch roller 85, and the card CA is drawn between the peripheral surface of the card discharge roller 45 and the peripheral surface of the card discharge pinch roller 85.

  The card CA passes between the first reading unit 100 and the second reading unit 60 after being conveyed on the upper surface of the extending portion 163 of the CIS holder 61.

  The card LF roller 43 is rotated clockwise as viewed from the right side simultaneously with the start of rotation of the card discharge roller 45. As the card LF roller 43 rotates, the card LF pinch roller 83 rotates counterclockwise as viewed from the right side. When the leading end of the card CA passing between the first reading unit 100 and the second reading unit 60 reaches between the peripheral surface of the card LF roller 43 and the peripheral surface of the card LF pinch roller 83, the card LF roller 43 To the card CA.

  The card CA passes through the card passage opening 122 and reaches a position where the rear end opposite to the front end of the card CA is sandwiched between the peripheral surface of the card LF roller 43 and the peripheral surface of the card LF pinch roller 83. When the conveyance of the card CA proceeds, the rotation of the card LF roller 43 and the card discharge roller 45 is stopped. When the rotation of the card LF roller 43 and the card discharge roller 45 is stopped, the card CA is temporarily stopped with the leading end thereof being cued from the cueing opening 128. The cue opening 128 is formed at a position overlapping with the card passage opening 122 on the rear surface 13R of the lower housing 13 in the front-rear direction.

  Thereafter, the card LF roller 43 and the card discharge roller 45 are rotated counterclockwise as viewed from the right side. The card LF pinch roller 83 and the card discharge pinch roller 85 rotate clockwise as viewed from the right side. As a result, the card CA is transported in the direction from the rear side to the front side with the transport direction reversed.

  The card CA passes between the first reading unit 100 and the second reading unit 60. At this time, the card CA is irradiated with light from the LED light sources of the CIS units 62 and 102, respectively. Then, when the reflected light from the card CA is received by the image sensors of the CIS units 62 and 102, the images drawn on both surfaces of the card CA are read.

  While the card CA passing between the first reading unit 100 and the second reading unit 60 is along the upper surface of the extending portion 163, the leading end of the card CA is the peripheral surface of the card discharge roller 45 and the card discharge pinch roller 85. When the contact portion with the peripheral surface is reached, a conveying force is applied from the card discharge roller 45 to the card CA, and the card CA is drawn between the peripheral surface of the card discharge roller 45 and the peripheral surface of the card discharge pinch roller 85. It is. Then, the card CA conveyed between the card discharge roller 45 and the card discharge pinch roller 85 passes through the card introduction port 121 and is discharged out of the housing 2.

  In this way, the card CA introduced from the card introduction port 121 is switched back in the housing 2 and discharged from the card introduction port 121.

<Effect>

  As described above, the CIS holder 61 includes the extending portion 163. The extension part 163 extends to the front side at the same position as the card introduction port 121 in the left-right direction.

  Thereby, the card CA introduced from the card introduction port 121 is transported on the extension part 163 and moves from the extension part 163 onto the main body part 162. Since the extension part 163 extends from the main body part 162, it is possible to prevent the card CA from being caught by the CIS holder 61 when the card CA moves from the extension part 163 to the main body part 162. Therefore, it is possible to prevent the card CA from being jammed. As a result, the card CA can be transported satisfactorily.

  The CIS holder 61 is formed with a recess 626 that is opened upward. The contact glass 63 is disposed in the recess 626, and the CIS unit 62 is provided below the contact glass 63. The upper surface and the upper surface of the extending portion 163 are located on the same plane F defined by the front-rear direction and the left-right direction.

  Since the upper surface of the contact glass and the upper surface of the extension part 163 are located on the same plane F, it is possible to prevent the card CA conveyed on the extension part 163 from being caught on the contact glass 63. Further, it is possible to prevent the card CA from being caught by the extending portion 163 when the sheet SH conveyed on the common conveying path 125 moves from the contact glass 63 onto the extending portion 163. As a result, the sheet SH and the card CA can be transported satisfactorily.

  The CIS holder 61 is opened upward and accommodated in a first region 64A formed in the lower housing 13, and the lower housing 13 is provided with first edges provided on both outer sides of the extending portion 163 in the left-right direction. The sum of the length of the first edge 165L in the left-right direction and the length of the second edge 165R in the left-right direction and the length of the extending portion 163 in the left-right direction is It matches the length of the CIS holder 61.

  Thereby, it can suppress that a clearance gap produces between the 1st edge part 165L and the extension part 163, and between the 2nd edge part 165R and the extension part 163. FIG. Therefore, it is possible to suppress the card CA from being caught by the first edge portion 165L and the second edge portion 165R when the card CA is conveyed on the extension portion 163. As a result, the card CA can be conveyed better.

  The extension 163 is formed with a notch 164 cut out from the rear side toward the front side, provided in the notch 164 in the left-right direction, and the card CA introduced from the card introduction port 121 to the common transport path 125. A card discharge roller 45 configured to be introduced is provided.

  The card discharge roller 45 can introduce the card CA into the common transport path 125.

<Modification>

  As mentioned above, although one Embodiment of this invention was described, this invention can also be implemented with another form.

  For example, in the above-described embodiment, the card introduction port 121 also serves as a card ejection port from which the card CA is ejected, and the conveyance direction of the card CA introduced from the card introduction port 121 is reversed halfway, so that the card CA Has taken up a configuration in which is discharged from the card introduction port 121. However, the present invention is not limited to this, and, for example, a configuration in which the card CA introduced from the card introduction port 121 is conveyed backward through the card conveyance path 124 and the card CA is ejected from the cue opening 128 may be employed.

  The card LF pinch roller 83 includes two pinch rollers, and the peripheral surfaces of the two pinch rollers of the card LF pinch roller 83 are minutely spaced on the left and right sides of the peripheral surface of the card LF roller 43 of the lower housing 13 respectively. Was next to each other. However, the present invention is not limited to this. For example, the card LF pinch roller 83 is composed of one pinch roller, and the peripheral surface of the pinch roller is in contact with the peripheral surface of the card LF roller 43 of the lower housing 13 from above. Good.

  A part of the lower side of the card introduction port 121 overlapped with a part of the right side of the sheet discharge port 202. However, the present invention is not limited to this, and for example, a part of the right side of the sheet discharge port 202 may be the card introduction port 121. That is, the entire area of the card introduction port 121 may be included in the sheet discharge port 202 on the right side. The common conveyance path 125 is an area on the right side of the sheet conveyance path 203 in the card conveyance path 124. However, the present invention is not limited to this, and for example, a part of the lower side of the common conveyance path 125 may overlap with a part of the right side of the sheet conveyance path 203.

  In addition, various design changes can be made to the above-described configuration within the scope of the matters described in the claims.

DESCRIPTION OF SYMBOLS 1 Image reading device 13 Lower housing | casing 14 Upper housing | casing 45 Card discharge roller 60 Reading part 61 CIS holder 62 CIS unit 63 Contact glass 64A 1st area | region 64B 2nd area | region 100 Reading part 102 CIS unit 121 Card introduction port 125 Common conveyance path 163 Extension part 164 Notch 201 Sheet introduction port 202 Sheet discharge port 626 Recessed part CA card F Plane SH sheet

Claims (4)

A first housing and a second housing located below the first housing;
A first introduction port formed between the first housing and the second housing on one side in a first direction and configured to introduce a first medium;
A first outlet formed between the first casing and the second casing on the other side in the first direction and configured to discharge the first medium;
Between the first housing and the second housing, a second medium that is partially overlapped with the first discharge port and narrower than the first medium is introduced. A second inlet,
Formed between the first housing and the second housing so as to be connected to the first discharge port and extending in the first direction so that the first medium and the second medium are conveyed. A common conveyance path that is configured, and a housing in which is formed,
A reading unit configured to read images formed on the first medium and the second medium;
Holding the reading unit, and a holding unit provided below the common conveyance path of the second housing,
The image reading apparatus, wherein the holding portion includes an extending portion that extends to the other side in the first direction at the same position as the second introduction port in a second direction orthogonal to the first direction. The holding portion is formed with a first recess formed to open upward,
Contact glass is disposed in the first recess,
The reading unit is provided below the contact glass,
2. The image reading apparatus according to claim 1, wherein an upper surface of the contact glass and an upper surface of the extending portion are located on the same plane defined by the first direction and the second direction. The holding portion is opened upward and stored in a second recess formed in the second housing,
The second housing includes a first edge and a second edge provided on both outer sides of the extending part in the second direction,
The sum of the length of the first edge in the second direction, the length of the second edge in the second direction, and the length of the extension in the second direction is the holding portion in the second direction. The image reading apparatus according to claim 1, wherein the image reading apparatus matches the length of the image reading apparatus. The extension portion is formed with a notch cut out from the other side of the second direction toward the one side of the first direction,
4. The apparatus according to claim 1, further comprising an introduction roller provided in the notch in the second direction and configured to introduce the second medium introduced from the second introduction port into the common conveyance path. The image reading apparatus according to claim 1.

Images