JP2017011671A - Image reading device and image reading system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image reading device capable of achieving a reduction in size of the device.SOLUTION: An image reading device comprises: a first image reading unit capable of reading a surface of a medium transported along a transportation path; a second image reading unit placing the medium on a medium reading surface and being capable of reading the surface of the medium; and an opening/closing body provided so as to be able to switch between a closed attitude and an opened attitude with respect to the medium reading surface. At least a part of the medium reading surface overlaps with at least a part of the first image reading unit in a device height direction. Further, the image reading device comprises the opening/closing body provided so as to be able to switch between the closed attitude and the opened attitude with respect to the medium reading surface. At least a part of the opening/closing body overlaps with at least a part of the first image reading unit in the device height direction.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an image reading apparatus typified by a scanner, and an image reading system including a plurality of image reading units via a connection body.

  2. Description of the Related Art Conventionally, an image reading apparatus that reads a surface of a medium, a so-called scanner, is called a sheet feed scanner that conveys a medium along a conveyance path and reads at least one surface of the medium by an image reading unit provided in the apparatus. In addition, there is a so-called flat bed scanner that places a medium in close contact with the medium placement surface and reads the surface of the medium facing the medium placement surface.

  The sheet feed scanner is generally configured so that a plurality of sheet-like media can be set, and the plurality of set sheet-like media are separated one by one and continuously conveyed along a conveyance path. Thus, a large amount of sheet-like medium can be read.

  On the other hand, the flatbed scanner can read a relatively thick medium such as a book or a magazine because the medium is placed on the medium placement surface and an image is read.

  Some users who use these scanners desire both of the two uses of reading a large amount of sheet-like medium and reading a relatively thick medium. There is an image reading apparatus provided with both a sheet feed scanner and a flat bed scanner according to the demands of these users (see Patent Document 1).

JP 2008-312043 A

  This image reading apparatus is configured by integrally assembling a flat bed type image reading mechanism (flat bed scanner) and an automatic paper feed type reading mechanism (sheet feed scanner). In this image reading apparatus, a flat bed type image reading mechanism is disposed on the front side of the automatic paper feeding type reading mechanism.

  The flat bed image reading mechanism is provided so as to be openable and closable with respect to a document table on which a document is placed, and includes a document cover formed in a flat plate shape. The document cover is provided with a fulcrum portion at an end on the side of the automatic paper feed type reading mechanism, and is rotatable with the fulcrum portion as a rotation fulcrum. The document cover is configured to cover the provided area. When the document cover is changed from the closed state to the document table, the document cover is rotated from the front side to the back side in the apparatus depth direction, that is, toward the automatic paper feed type reading mechanism. By doing so, the document table is exposed, and the medium can be set.

  A paper discharge opening is provided in front of the automatic paper feed type reading mechanism. Then, the sheet-like medium conveyed along the conveyance path provided in the automatic sheet feeding type reading mechanism is discharged from the discharge opening to the front side in the apparatus depth direction. At this time, the document cover is closed with respect to the document table, so that the sheet-like medium discharged from the discharge opening can be stacked on the upper surface of the document cover. That is, the document cover of the flat bed type image reading mechanism also serves as a stacker for sheet-like media ejected from the automatic paper feed type reading mechanism.

  By the way, the original table and the original cover in the flat bed type image reading mechanism are arranged in front of the apparatus with respect to the discharge opening in the depth direction of the apparatus. The type reading mechanism (sheet feed scanner) and the flat bed type image reading mechanism (flat bed scanner) are simply arranged in order in the apparatus depth direction, and the size of the image reading apparatus is increased.

  Further, in this image reading apparatus, the flat bed type image reading mechanism and the automatic paper feed type reading mechanism are integrally assembled so as not to be separated, so that the weight of the image reading apparatus increases, so that the apparatus can be transported. It becomes difficult and transportability deteriorates.

  Further, in this image reading apparatus, when a failure occurs in the flatbed image reading mechanism or the automatic paper feed type reading mechanism, the reading mechanism in which the failure has occurred can be removed from the image reading apparatus and replaced. First, if the image reading apparatus is repaired in order to repair the failed reading mechanism, the reading mechanism in which no failure has occurred cannot be used during that time, and the convenience for the user is reduced.

  The present invention has been made in view of the above problems, and an object thereof is to provide an image reading apparatus capable of reducing the apparatus size. It is another object of the present invention to provide an image reading apparatus that can improve transportability and convenience.

  To achieve the above object, an image reading apparatus according to a first aspect of the present invention includes a first image reading unit capable of reading a surface of a medium conveyed along a conveyance path, and a medium placed on the medium reading surface. And a second image reading unit that can read the surface of the medium and an open / close body that is switchable between a closed posture and an open posture with respect to the medium reading surface, At least a part of the surface overlaps at least a part of the first image reading unit in the apparatus height direction.

  According to this aspect, at least a part of the medium reading surface (which constitutes the second image reading unit) overlaps at least a part of the first image reading unit in the apparatus height direction. The second image reading unit enters the area of the first image reading unit in a direction crossing the height direction (for example, a direction along the apparatus installation surface in many cases), and the apparatus height direction The device size in the direction intersecting with can be reduced.

  An image reading apparatus according to a second aspect of the present invention includes a first image reading unit capable of reading a surface of a medium conveyed along a conveyance path, and a surface of the medium placed on the medium reading surface. A second image reading unit capable of reading the image, and an opening / closing body provided so as to be switchable between a closed posture and an open posture with respect to the medium reading surface, and at least a part of the opening / closing body includes a device height It overlaps with at least a part of the first image reading unit in the vertical direction.

  According to this aspect, at least a part of the opening / closing body (which constitutes the second image reading unit) overlaps at least a part of the first image reading unit in the apparatus height direction. The second image reading unit enters the area of the first image reading unit in a direction intersecting the vertical direction (for example, in a direction along the apparatus installation surface in many cases). The device size in the intersecting direction can be reduced.

  According to a third aspect of the present invention, in the first or second aspect, the image reading apparatus is closed to the first image reading unit, and the first image reading unit is moved from the closed position to the first image reading unit. A medium support section that rotates relative to the medium and supports the medium in an attitude that can be conveyed to the conveyance path, and is capable of switching between an attitude that is open with respect to the first image reading unit and at least the medium reading surface. A part thereof overlaps at least a part of the medium support portion in the closed posture in the apparatus height direction.

  According to this aspect, at least a part of the medium reading surface (which constitutes the second image reading unit) is the medium supporting portion (the first image reading unit) in the closed posture in the apparatus height direction. In the direction intersecting the apparatus height direction (for example, the direction along the apparatus installation surface in many cases) in the region of the first image reading unit. The image reading unit is inserted, and the apparatus size in the direction intersecting the apparatus height direction can be reduced.

  According to a fourth aspect of the present invention, there is provided the image reading apparatus according to the first or second aspect, further comprising a discharge unit that discharges the medium conveyed along the conveyance path in the first image reading unit, At least a part of the body overlaps at least a part of the discharging means in the apparatus height direction.

  According to this aspect, at least a part of the opening / closing body (which constitutes the second image reading unit) is at least one of the discharge means (which constitutes the first image reading unit) in the apparatus height direction. The second image reading unit enters the area of the first image reading unit in a direction crossing the apparatus height direction (for example, a direction along the apparatus installation surface in many cases). Thus, the device size in the direction intersecting the device height direction can be reduced.

  The image reading apparatus according to a fifth aspect of the present invention is the image reading unit according to the first or second aspect, wherein the image reading unit reads at least one surface of the medium conveyed along the conveyance path in the first image reading unit. And at least a part of the opening / closing body overlaps at least a part of the image reading unit in the apparatus height direction.

  According to this aspect, at least a part of the opening / closing body (which constitutes the second image reading unit) is at least one of the image reading units provided in the first image reading unit in the apparatus height direction. The second image reading unit enters the area of the first image reading unit in a direction crossing the apparatus height direction (for example, a direction along the apparatus installation surface in many cases). Thus, the device size in the direction intersecting the device height direction can be reduced.

  An image reading apparatus according to a sixth aspect of the present invention is the image reading apparatus according to the first or second aspect, wherein the first image reading unit discharges the medium transported along the transport path, and the transport path. And at least a part of the medium reading surface in the discharge direction of the medium in the first image reading unit. It is located between the discharge port.

  According to this aspect, at least a part of the medium reading surface (which constitutes the second image reading unit) is located between the discharge unit and the discharge port in the medium discharge direction of the first image reading unit. Therefore, the second image reading unit enters the area of the first image reading unit in the discharge direction, and the apparatus size in the discharge direction can be reduced.

  An image reading apparatus according to a seventh aspect of the present invention is the image reading apparatus according to any one of the second, fourth, and fifth aspects, wherein the medium discharged from the first image reading unit is placed on the upper part of the opening / closing body. The opening / closing body is provided with a slope member displaceable with respect to the opening / closing body, and the slope member is closed to the second image reading unit. When in the posture, the guide posture for guiding the medium ejected from the first image reading unit to the medium placing portion is taken, and the opening / closing body is opened from the closed posture with respect to the second image reading unit. When switched to a different posture, the non-guide posture of displacing with respect to the opening / closing body and retracting from the conveyance path is adopted.

  According to this aspect, since the slope member can switch the posture with respect to the first image reading unit in accordance with the opening / closing operation of the opening / closing body with respect to the second image reading unit, the slope member can be switched to the first image reading unit. It is possible to suppress interference with the image reading unit and hindering the opening / closing operation of the opening / closing body.

  An image reading apparatus according to an eighth aspect of the present invention is the image reading apparatus according to the seventh aspect, wherein the opening / closing body is rotatably attached to the second image reading unit and the first member provided with the slope member. And a second member rotatably connected to the first member.

  According to this aspect, when the opening / closing body is rotated and opened with respect to the second image reading unit, the second member is opened with respect to the second image reading unit. Since the member can be further rotated in the rotation direction, the medium reading surface and the second member when the opening / closing body is opened with respect to the second image reading unit are formed. The opening angle can be increased, the medium can be easily exchanged and arranged on the medium reading surface, and the workability of the second image reading unit can be improved.

  According to a ninth aspect of the present invention, in the seventh or eighth aspect, the slope member is in contact with the first image reading unit, and the first image reading unit is in contact with the slope member. It has the contact part which can be displaced with respect to it.

  According to this aspect, when the opening / closing body is opened / closed with respect to the second image reading unit, the slope member interferes with the first image reading unit and obstructs the opening / closing operation of the opening / closing body. Can be suppressed.

  An image reading apparatus according to a tenth aspect of the present invention is the image reading apparatus according to the ninth aspect, wherein the slope member extends in a direction intersecting a discharge direction of the medium in the first image reading unit. Is provided at a position outside the region through which the medium passes in the intersecting direction.

  According to this aspect, when the slope member is in the guide posture, it is possible to reduce the possibility that the contact portion comes into contact with the medium ejected from the first image reading unit. Accordingly, the slope member can favorably guide the medium discharged from the first image reading unit to the medium placing portion.

  According to an eleventh aspect of the present invention, in the ninth or tenth aspect, the contact portion is constituted by a roller member that can rotate while being in contact with the first image reading unit. Features.

  According to this aspect, since the contact portion is constituted by a roller member, it is possible to reduce a frictional force generated between the contact portion and the first image reading unit, and the first image of the contact portion. The displacement with respect to the reading unit can be facilitated, and the contact portion can be prevented from scratching the first image reading unit, or the degree of the scratch can be suppressed.

  In an image reading system according to a twelfth aspect of the present invention, the image reading apparatus according to any one of the first to eleventh aspects, the first image reading unit, and the second image reading unit are detachable. A connecting body that is mounted and that integrates the first image reading unit and the second image reading unit in a state where the first image reading unit and the second image reading unit are mounted. .

  According to this aspect, since the first image reading unit and the second image reading unit are detachably attached to the connection body, for example, when the image reading system is transported, the connection body It is possible to remove and carry at least one of the first image reading unit and the second image reading unit. That is, instead of carrying the first image reading unit and the second image reading unit together, the first image reading unit or the second image reading unit can be removed and transported in multiple steps. Therefore, the carrying weight per time can be reduced. As a result, the transportability of the image reading system can be improved.

  Further, in the image reading system, for example, when the first image reading unit or the second image reading unit fails, the failure is also caused while the failed image reading unit is removed from the connection body and sent for repair. You can continue to use the image reading unit that is not. In addition, since the state of the image reading system can be quickly restored by replacing the failed image reading unit, the period during which the image reading system cannot be used due to a failure can be shortened. Therefore, convenience in the image reading system can be improved.

  An image reading system according to a thirteenth aspect of the present invention is the image reading system according to the twelfth aspect, wherein the first image reading unit is mounted on an upper surface of the connection body, and the second image reading unit is located on a side of the connection body. To the connecting body.

  According to this aspect, when the first image reading unit and the second image reading unit are attached to the connection body, the first image reading unit is attached to the connection body from above. On the other hand, the second image reading unit is attached to the connection body from the side. Thereby, in the mounting operation of each image reading unit to the connection body, the mounting path of the first image reading unit and the second image reading unit does not interfere with each other. Can be improved.

  An image reading system according to a fourteenth aspect of the present invention is the image reading system according to the twelfth or thirteenth aspect, wherein the connection body is capable of supporting at least a part of a bottom surface of the first image reading unit; A second support surface capable of supporting at least a part of the bottom surface of the second image reading unit, and the first support surface is 1 / in a predetermined direction of the bottom surface of the first image reading unit. Two or more length regions can be supported, and the second support surface can support a length region of ½ or more in a predetermined direction of the bottom surface of the second image reading unit. To do.

  According to this aspect, in the connection body, the first support surface can support a length region of ½ or more in a predetermined direction of the bottom surface of the first image reading unit, and the second support The surface can support a length region of 1/2 or more in a predetermined direction of the bottom surface of the second image reading unit. That is, when carrying the image reading system in a state where the first image reading unit and the second image reading unit are mounted on the image reading system, the first image reading unit and the second image reading unit Since more than half of the bottom surface is supported by the connection body, an excessive load is applied to the connection portion between the connection body and the first image reading unit, and the connection portion between the connection body and the second image reading unit. Occurrence can be suppressed, and damage to the image reading system can be suppressed.

  An image reading system according to a fifteenth aspect of the present invention is the image reading system according to any one of the twelfth to fourteenth aspects, wherein the first image reading unit and the second image reading unit are attached to the connection body. The handle is provided at a position corresponding to the position of the center of gravity of the connection body in the state.

  According to this aspect, the connection body is provided with the handle portion at a position corresponding to the position of the center of gravity of the connection body in a state where the first image reading unit and the second image reading unit are attached. Therefore, when carrying the image reading system with the first image reading unit and the second image reading unit mounted on the connection body, the image reading system can be carried in a balanced manner, that is, stably. it can.

  An image reading system according to a sixteenth aspect of the present invention is the image reading system according to any one of the twelfth to fifteenth aspects, wherein the connection body includes a position restricting portion that defines a position of the second image reading unit in the depth direction. Prepare.

  According to this aspect, when the second image reading unit is moved from the outer side to the inner side in the depth direction with respect to the connection body and attached to the connection body, the second image reading unit is coupled to the connection body in a state of abutting against the position restricting portion. be able to.

  An image reading system according to a seventeenth aspect of the present invention is the image reading system according to the sixteenth aspect, wherein the connection body includes a cable relay portion on the back side in the depth direction of the position restricting portion.

  According to this aspect, it is possible to effectively use the space in the connection body and suppress an increase in the size of the image reading system.

1 is an external perspective view of an image reading apparatus. 1 is an external perspective view of an image reading apparatus. FIG. 3 is a side sectional view showing a medium conveyance path of a first image reading unit in the image reading apparatus. The side view which shows the state which closed the cover of the 2nd image reading unit in the image reading apparatus. The perspective view which shows the state which opened the cover of the 2nd image reading unit in the image reading apparatus. The side view which shows the state which opened the cover of the 2nd image reading unit in the image reading apparatus. FIG. 3 is a side sectional view of a slope member in the image reading apparatus. The perspective view of the connection body of an image reading apparatus. The perspective view which shows the state which connected the 2nd image reading unit to the connection body. FIG. 6 is an external perspective view of an image reading system according to a second embodiment. FIG. 6 is an external perspective view of an image reading system according to a second embodiment. FIG. 9 is a side sectional view showing a medium conveyance path of a first image reading unit in an image reading system according to Embodiment 2. FIG. 6 is a side view of an image reading system according to a second embodiment. FIG. 9 is a perspective view illustrating a state in which a cover of a second image reading unit is opened in the image reading system according to the second embodiment. FIG. 6 is a perspective view of a connection body of an image reading system according to a second embodiment. FIG. 9 is a perspective view illustrating a state in which a second image reading unit is connected to a connection body according to a second embodiment. FIG. 6 is a plan view illustrating a lower surface of an image reading system according to a second embodiment. FIG. 6 is a cross-sectional view illustrating a relationship between a pair of support portions of a connection body according to Embodiment 2 and a second image reading unit. FIG. 19 is an enlarged cross-sectional view of one support unit and a second image reading unit in FIG. 18. FIG. 6 is an explanatory diagram illustrating a first state in the assembly of the image reading system according to the second embodiment. FIG. 6 is an explanatory diagram illustrating a second state in the assembly of the image reading system according to the second embodiment. FIG. 9 is an explanatory diagram illustrating a third state in the assembly of the image reading system according to the second embodiment. FIG. 9 is an explanatory diagram illustrating a fourth state in the assembly of the image reading system according to the second embodiment. FIG. 6 is a side sectional view showing a connecting portion between a connection body and a second image reading unit. FIG. 10 is an explanatory diagram illustrating a fifth state in the assembly of the image reading system according to the second embodiment. FIG. 10 is an explanatory diagram illustrating a sixth state in the assembly of the image reading system according to the second embodiment. FIG. 6 is a side cross-sectional view illustrating a coupling portion between a connection body according to a second embodiment and a first image reading unit. FIG. 10 is an explanatory diagram illustrating a seventh state in the assembly of the image reading system according to the second embodiment. FIG. 10 is an explanatory diagram illustrating an eighth state in the assembly of the image reading system according to the second embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, about the same structure in each Example, the same code | symbol is attached | subjected and it demonstrates only in the first Example, The description of the structure is abbreviate | omitted in a subsequent Example.

Example 1
1 is an external perspective view of the image reading apparatus, FIG. 2 is an external perspective view of the image reading apparatus, and FIG. 3 is a side sectional view showing a medium conveyance path of the first image reading unit in the image reading apparatus. 4 is a side view showing a state in which the cover of the second image reading unit is closed in the image reading apparatus, and FIG. 5 is a perspective view showing a state in which the cover of the second image reading unit is opened in the image reading apparatus. It is.

  6 is a side view showing a state in which the cover of the second image reading unit is opened in the image reading apparatus, FIG. 7 is a side sectional view of a slope member in the image reading apparatus, and FIG. 8 is an image reading apparatus. FIG. 9 is a perspective view showing a state in which the second image reading unit is connected to the connection body.

  In the XYZ coordinate system shown in each drawing, the X direction is the apparatus width direction, the sheet width direction, the Y direction is the depth direction of the image reading apparatus, and the Z direction is the apparatus height direction. In each figure, the -Y direction is the front side of the apparatus, and the + Y direction side is the back side of the apparatus. In each figure, the −Y direction is the medium transport direction in the first image reading unit.

<<< Overview of Image Reading Apparatus >>>
Referring to FIGS. 1 to 3, an image reading apparatus 10 in this embodiment is shown. The image reading apparatus 10 includes a first image reading unit 12, a second image reading unit 14, and a connection body 16. In the present embodiment, the first image reading unit 12 is detachably connected to the upper part of the connection body 16, and the second image reading unit 14 is detachably connected to the front part of the connection body 16. Yes. The attachment / detachment of the first image reading unit 12 and the second image reading unit 14 to / from the connection body 16 will be described later.

  In this embodiment, the first image reading unit 12 is configured as a sheet feed scanner, and the second image reading unit 14 is configured as a flat bed scanner. First, an outline of the first image reading unit 12 will be described.

<<< First Image Reading Unit >>>
A medium support portion 18 is provided at the upper part on the back side of the first image reading unit 12. The medium support unit 18 is attached to the first image reading unit 12 so as to be rotatable. As shown in FIG. 1, the medium support unit 18 is in a non-feeding state that covers the upper portion of the first image reading unit 12 and the feeding port 20 (see FIG. 2), and a non-feeding state as shown in FIG. The feed port 20 is opened by being rotated to the back side of the first image reading unit 12, and a feeding state in which the medium P is supported on the medium support surface 18a can be taken.

  Here, the conveyance path of the medium P will be described with reference to FIG. 3. The feeding roller pair 22, the conveyance roller pair 24, the image reading unit 26, and the “ejection unit” along the conveyance direction from the medium support surface 18 a. The discharge roller pair 28 and the discharge port 30 are provided in order. A two-dot chain line denoted by reference symbol P in FIG. 3 indicates a conveyance path of the medium P. The medium P supported by the medium support surface 18 a is nipped by the feed roller pair 22 and directed toward the conveyance roller pair 24. Are sent. The conveyance roller pair 24 nips the medium P and conveys the medium P to the image reading unit 26.

  In the present embodiment, the image reading unit 26 includes image reading sensors 26A and 26B. In the present embodiment, the image reading sensor 26A is arranged so as to be able to read one surface of the medium P facing the one surface (the surface on the lower side in the apparatus height direction), and the image reading sensor 26B is the other surface of the medium P. The other surface is arranged so as to be readable so as to face a surface (surface on the upper side in the apparatus height direction). The image reading unit 26 is configured to be able to read both sides of the medium P by the image reading sensors 26A and 26B. The medium P on which an image has been read by the image reading unit 26 is nipped by the discharge roller pair 28, and is forward of the first image reading unit 12 from the discharge port 30 provided on the front surface of the first image reading unit 12. The second image reading unit 14 that is positioned is discharged toward a medium placement portion 32a of a cover portion 32 as an “opening / closing member” to be described later.

<<< Second Image Reading Unit >>>
Next, the outline of the second image reading unit 14 will be described. The second image reading unit 14 is configured as a flat bed scanner. The second image reading unit 14 includes a housing 34 and a cover portion 32 that is rotatably attached to the housing 34. A rectangular medium reading surface 34 a (see FIGS. 3 and 5) is provided on the upper portion of the housing 34. In this embodiment, the medium reading surface 34a is made of a flat and transparent glass plate, and a medium P for reading an image can be placed on the upper surface.

  In addition, an image reading unit (not shown) is provided in the housing 34. In this embodiment, the image reading unit moves in the longitudinal direction or the short direction of the medium reading surface 34a below the medium reading surface 34a, so that the medium reading surface of the medium P placed on the medium reading surface 34a. It is comprised so that the surface which opposes 34a can be read.

  In addition, an operation unit 36 is provided on the housing 34 on the front side of the apparatus (the −Y axis direction side in FIGS. 1 and 2). The operation unit 36 includes a power switch, a setting switching button, and the like for operating the second image reading unit 14.

  Furthermore, the cover part 32 is demonstrated with reference to FIG. 4 thru | or FIG. In the present embodiment, the cover portion 32 is attached to the housing 34 so as to be switchable between a posture in which the medium reading surface 34a is closed and an open posture in which the medium reading surface 34a is exposed. Specifically, the cover part 32 is configured to be rotatable with respect to the housing 34. In the present embodiment, the cover portion 32 includes a first member 38 and a second member 40.

  In this embodiment, a rotation shaft 39 (see FIG. 3) is provided at the end of the first member 38 on the back side in the apparatus depth direction. The first member 38 is attached to the end of the housing 34 in the apparatus depth direction rear side so as to be rotatable with respect to the housing 34 with the rotation shaft 39 as a fulcrum. The second member 40 is connected to the end of the first member 38 on the front side in the apparatus depth direction so as to be rotatable with respect to the first member 38. In this embodiment, the rotation shaft 39 is configured to be displaceable in the apparatus height direction with respect to the housing 34. Accordingly, the cover 32 can be separated from the medium reading surface 34a upward in the apparatus height direction while maintaining the closed posture covering the medium reading surface 34a. That is, the cover 32 is configured to hold the medium P even when the medium P having a relatively large thickness is placed on the medium reading surface 34a.

  A medium pressing member 41 is provided on the lower surface of the first member 38 and the second member 40, that is, the surface facing the medium reading surface 34a. The medium pressing member 41 is made of an elastic body such as a sponge.

  When the cover 32 is closed with respect to the casing 34 (see FIG. 3), the medium pressing member 41 receives the medium P placed on the medium reading surface 34a provided in the casing 34. Press uniformly from the opposite side of P to be read. As a result, the surface to be read of the medium pressed by the medium pressing member 41 is in close contact with the medium reading surface 34a. That is, the medium pressing member 41 can prevent the medium P from floating from the medium reading surface 34a. The size of the medium pressing member 41 is substantially the same as the size of the medium reading surface 34a so that the entire area of the surface opposite to the medium reading surface 34a can be pressed in the medium P placed on the medium reading surface 34a. Is set.

  Further, the upper surface of the second member 40 is configured as a medium placement portion 32 a on which the medium P discharged from the first image reading unit 12 is placed. Further, on the upper surface of the second member 40, a first rib 42 protruding upward from the upper surface, that is, the medium placement portion 32a is formed on at least a part of the end portion on the front side in the apparatus depth direction. In the present embodiment, the first rib 42 extends in the apparatus width direction on the upper surface of the second member 40. Therefore, the first rib 42 restricts the movement of the medium P discharged from the discharge port 30 toward the medium placement portion 32a in the discharge direction, and reliably places the medium P on the medium placement portion 32a. Can do.

  Further, on the upper surface of the second member 40, at least a part of at least one end in the apparatus width direction is formed with a second rib 44 protruding upward from the upper surface, that is, the medium placement portion 32a. In the present embodiment, the second ribs 44 are formed at both ends of the medium mounting portion 32a in the apparatus width direction and extend in the apparatus depth direction. In other words, in the present embodiment, the medium placing portion 32a provided on the upper surface of the second member 40 has the first rib 42 and the second rib 44 at the remaining three ends except the end on the discharge port 30 side. Is formed. That is, the medium placement portion 32 a is surrounded by the first rib 42 and the second rib 44 except for the end portion on the discharge port 30 side. Therefore, the first rib 42 and the second rib 44 prevent the medium P, which has been discharged from the discharge port 30 toward the medium mounting portion 32a, from dropping from the medium mounting portion 32a, so that the medium P is reliably transferred to the medium. It can be mounted on the mounting portion 32a.

  A slope member 46 is attached to the upper surface of the first member 38. In this embodiment, the slope member 46 functions as a guide member that guides the medium P discharged from the discharge port 30 of the first image reading unit 12 to the medium placement portion 32 a of the second image reading unit 14. The slope member 46 includes a guide portion 46 a and engaging portions 48 and 48. The guide portion 46a extends in the apparatus width direction. Engaging portions 48 are provided at both ends of the guide portion 46a in the apparatus width direction. The engaging portions 48 are provided at positions outside the region through which the medium P discharged from the discharge port 30 of the first image reading unit 12 passes in the apparatus width direction. A contact portion 50 is provided at the tip of the engaging portion 48. In the present embodiment, the contact portion 50 is configured as a rotatable roller member.

  In the present embodiment, a rotation shaft 46b (see FIG. 3) is provided on the front side of the slope member 46 in the apparatus depth direction. The slope member 46 is rotatably attached to the first member 38 with the rotation shaft 46b as a fulcrum. In this embodiment, the slope member 46 rotates the slope member 46 in the counterclockwise direction in FIGS. 3 and 7, thereby causing the medium P to be discharged from the discharge port 30 of the first image reading unit 12. The attitude (see FIG. 6) of the second image reading unit 14 retracted from the conveyance path of the medium P discharged from the first image reading unit 12 from the guide attitude (see FIGS. 3 and 7) for guiding to the medium placement unit 32a. ).

  Further, as shown in FIG. 7, one end of the biasing means 52 is attached to the lower surface of the guide portion 46 a of the slope member 46, and the other end of the biasing means 52 is attached to the upper surface of the first member 38. ing. In this embodiment, the biasing means 52 is configured as a tension spring. In addition, on the upper surface of the first member 38, a defining portion 54 that abuts at least a part of the slope member 46 and defines the posture of the slope member 46 is provided.

  As shown in FIG. 7, when the slope member 46 is urged toward the first member 38 by the urging force of the urging means 52, at least a part of the slope member 46 comes into contact with the defining portion 54. This state is the guide posture of the slope member 46. In this state, the leading edge of the medium P discharged from the discharge port 30 of the first image reading unit 12 is in contact with the guide portion 46a, and is guided to the medium placement portion 32a of the second image reading unit 14 by the guide portion 46a. Guided. And the medium P is mounted in the medium mounting part 32a.

  In this state, the contact portion 50 of the engaging portion 48 is in contact with the front surface 12 a of the first image reading unit 12, and the contact position is located below the front surface 12 a of the first image reading unit 12. doing.

<<< About change in posture of slope member >>>
3, 4, and 7, the slope member 46 abuts the defining portion 54 by the urging force of the urging means 52 when the cover portion 32 is in the closed position with respect to the housing 34, and the medium The guide posture of P is taken. Here, when the end of the cover member 32 on the front side in the apparatus depth direction of the second member 40 is lifted from the housing 34, the second member 40 rotates in the clockwise direction in FIG. 6 with respect to the first member 38. . When the second member 40 takes a predetermined angle with respect to the first member 38, the first member 38 also rotates in the clockwise direction in FIGS. 5 and 6 together with the second member 40.

  When the first member 38 starts to rotate in the clockwise direction in FIG. 6, the slope member 46 moves away from the defining portion 54 against the biasing force of the biasing means 52, and the pivot shaft 46b serves as a fulcrum in FIG. And the rotation is started in the counterclockwise direction in FIG. At this time, since the contact portion 50 of the engaging portion 48 is configured as a roller member, the contact portion 50 is displaced from the lower side to the upper side of the front surface 12 a while rotating with respect to the front surface 12 a of the first image reading unit 12. As a result, the guide portion 46a of the slope member 46 is switched from the attitude for guiding the medium P to the attitude retracted from the conveyance path of the medium P, that is, the non-guide attitude.

  Here, when the slope member 46 changes the cover portion 32 from the closed position to the open position with respect to the casing 34, the slope member 46 changes from the guide position to the non-guide position with respect to the front surface 12 a of the first image reading unit 12. Since the switching is performed, it is possible to suppress the slope member 46 from interfering with the first image reading unit 12 and preventing the first member 38 from rotating in the clockwise direction in FIG.

  As a result, the first member 38 can be opened at an angle α with respect to the medium reading surface 34 a of the housing 34. In addition, since the second member 40 can be rotated to a predetermined angle with respect to the first member 38, the second member 40 is at an opening angle α of the first member 38 with respect to the medium reading surface 34 a of the housing 34. Can be opened at a large angle β. Here, as shown in FIG. 6, since the opening angle β on the front side of the apparatus is larger than the opening angle α on the back side of the apparatus with respect to the medium reading surface 34a, the medium P on the medium reading surface 34a is configured. Replacement and arrangement work are facilitated.

  The slope member 46 is configured to switch between the guide posture and the non-guide posture so that the slope member 46 does not interfere with the first image reading unit 12, and the second member 40 is configured to be rotatable with respect to the first member 38. Since the opening angle with respect to the medium reading surface 34a can be increased on the front side of the apparatus, the rotation shaft 39 of the first member 38 is not on the front side of the first image reading unit 12 in the apparatus depth direction. Even if the cover portion 32 is provided in an area overlapping with the first image reading unit 12, the cover portion 32 can be satisfactorily opened. That is, at least a part of the first image reading unit 12 and at least a part of the second image reading unit 14 can be arranged so as to overlap in the apparatus depth direction.

<<< Regarding Positional Relationship between First Image Reading Unit and Second Image Reading Unit >>>
Here, with reference to FIG. 3 again, the positional relationship between the first image reading unit 12 and the second image reading unit 14 in the apparatus depth direction will be described. 3 indicates the position of the end of the medium reading surface 34a of the second image reading unit 14 on the back side in the apparatus depth direction (Y-axis direction in FIG. 3). A two-dot chain line with a reference symbol Y2 indicates the position of the end of the cover 32 of the second image reading unit 14 on the back side in the apparatus depth direction.

  At the position of the two-dot chain line Y1 in the apparatus depth direction, at least a part of the medium reading surface 34a overlaps at least a part of the first image reading unit 12 in the apparatus height direction. More specifically, at least a part of the medium reading surface 34 a overlaps the medium support unit 18 in the non-feeding state in the first image reading unit 12. Further, at least a part of the medium reading surface 34a, more specifically, an end portion on the back side in the apparatus depth direction, is formed between the discharge roller pair 28 and the discharge port 30 in the first image reading unit 12 in the discharge direction of the medium P. Located between.

  At the position of the two-dot chain line Y2 in the apparatus depth direction, at least a part of the cover portion 32 overlaps at least a part of the first image reading unit 12 in the apparatus height direction. More specifically, at least a part of the cover portion 32 overlaps with the discharge roller pair 28 in the apparatus height direction. Further, at least a part of the cover part 32 overlaps at least a part of the image reading part 26 in the apparatus height direction.

  To summarize the above description, at least a part of the medium reading surface 34a (which constitutes the second image reading unit 14) in the present embodiment overlaps with at least a part of the first image reading unit 12 in the apparatus height direction. Therefore, the second image reading unit 14 enters the region of the first image reading unit 12 in the direction intersecting the apparatus height direction, specifically in the apparatus depth direction in this embodiment, and the apparatus height is increased. The apparatus size in the apparatus depth direction, which is the direction intersecting the vertical direction, can be reduced.

  In the “state where the second image reading unit 14 is in the area of the first image reading unit 12”, the second image reading unit 14 is in the first image reading unit 12 itself. There may be cases. Further, the second image reading unit 14 does not enter the first image reading unit 12 itself. However, when the apparatus is viewed from a predetermined direction (for example, upward direction), the second image reading unit 12 is not connected to the first image reading unit 12. The image reading unit 14 may be partially hidden, or the first image reading unit 12 may be partially hidden in the second image reading unit 14 (the same applies hereinafter).

  In addition, since at least part of the cover portion 32 (which constitutes the second image reading unit 14) in the present embodiment overlaps at least part of the first image reading unit 12 in the apparatus height direction, the apparatus height is increased. The second image reading unit 14 enters the area of the first image reading unit 12 in the direction intersecting the vertical direction, specifically, the apparatus depth direction in the present embodiment, and intersects the apparatus height direction. The apparatus size in the apparatus depth direction, which is the direction, can be reduced.

  In addition, at least a part of the medium reading surface 34a (which constitutes the second image reading unit 14) in the present embodiment is a medium support portion 18 (the first image reading unit 12 is closed) in a closed posture in the apparatus height direction. The second image reading unit in the region of the first image reading unit 12 in the direction intersecting the apparatus height direction, specifically in the apparatus depth direction in this embodiment. 14 enters, and the apparatus size in the apparatus depth direction, which is the direction intersecting the apparatus height direction, can be reduced.

  Further, at least a part of the cover portion 32 (which constitutes the second image reading unit 14) in this embodiment is at least part of the discharge roller pair 28 (which constitutes the first image reading unit 12) in the apparatus height direction. Since it partially overlaps, the second image reading unit 14 enters the area of the first image reading unit 12 in the direction intersecting the apparatus height direction, specifically, the apparatus depth direction in this embodiment. Thus, the apparatus size in the apparatus depth direction, which is the direction intersecting the apparatus height direction, can be reduced.

  In addition, at least a part of the cover portion 32 (which constitutes the second image reading unit 14) in the present embodiment is at least one of the image reading portions 26 provided in the first image reading unit 12 in the apparatus height direction. The second image reading unit 14 enters the area of the first image reading unit 12 in the direction intersecting the apparatus height direction, specifically in the apparatus depth direction in this embodiment. Thus, the apparatus size in the apparatus depth direction, which is the direction intersecting the apparatus height direction, can be reduced.

  In addition, at least a part of the medium reading surface 34 a (which constitutes the second image reading unit 14) in the present embodiment is a discharge roller pair 28 and a discharge port 30 in the medium discharge direction in the first image reading unit 12. Therefore, the second image reading unit 14 enters the area of the first image reading unit 12 in the medium discharging direction, and the apparatus size in the discharging direction can be reduced.

  In addition, since the slope member 46 in the present embodiment can switch the posture with respect to the first image reading unit 12 in accordance with the opening / closing operation of the cover portion 32 with respect to the second image reading unit 14, the slope member 46 has the first image. Interference with the reading unit 12 and inhibition of the opening / closing operation of the cover portion 32 can be suppressed.

  Further, the cover portion 32 in the present embodiment is attached to the second image reading unit 14 so as to be rotatable, and is capable of rotating with respect to the first member 38 provided with the slope member 46 and the first member 38. The second member 40 is connected to the second image reading unit 14 when the cover 32 is rotated and opened with respect to the second image reading unit 14. On the other hand, the first member 38 in the opened state can be further rotated in the rotation direction. As a result, the opening angle β formed by the medium reading surface 34a and the second member 40 when the cover portion 32 is opened with respect to the second image reading unit 14 can be increased, and the medium reading surface 34a. The medium can be easily replaced and arranged, and the workability of the second image reading unit 14 can be improved.

  In addition, the slope member 46 in the present embodiment is in contact with the first image reading unit 12 and has the contact portion 50 that can be displaced with respect to the first image reading unit 12 in the contact state. When opening and closing 32 with respect to the second image reading unit 14, it is possible to suppress the slope member 46 from interfering with the first image reading unit 12 and hindering the opening and closing operation of the cover portion 32.

  Further, the slope member 46 in the present embodiment extends in the first image reading unit 12 in a direction intersecting the medium discharge direction, that is, in the apparatus width direction, and the contact portion 50 is a region through which the medium passes in the apparatus width direction. Therefore, when the slope member 46 is in the guide posture, the contact portion 50 can reduce the possibility of contact with the medium ejected from the first image reading unit 12. Therefore, the slope member 46 can favorably guide the medium discharged from the first image reading unit 12 to the medium placing portion 32a.

  In addition, since the contact portion 50 in the present embodiment is configured by a roller member, the frictional force generated between the contact portion 50 and the front surface 12a of the first image reading unit 12 can be reduced, and the first contact portion 50 can be reduced. Can be easily displaced with respect to the image reading unit 12, and the contact portion 50 can be prevented from scratching the first image reading unit 12, or the degree of the scratch can be suppressed.

  Further, since the first rib 42 is provided on at least a part of the downstream end of the medium in the discharge direction of the medium in the upper portion of the cover portion 32 in the present embodiment, when the medium is discharged to the medium placement portion 32a. The first rib 42 comes into contact with the end on the leading end side of the medium in the discharge direction to restrict the displacement of the medium in the discharge direction, and the medium falls from the medium mounting portion 32a in the discharge direction, that is, the apparatus depth direction. Can be suppressed.

  In addition, since the second rib 44 is provided on at least one end in the apparatus width direction on the upper portion of the cover portion 32 in the present embodiment, when the medium is discharged to the medium placement portion 32a of the cover portion 32. The medium can be prevented from falling from the medium placement portion 32a.

<<< Assembly of Image Reading Apparatus >>>
Next, assembly of the image reading apparatus 10 will be described with reference to FIGS. 1, 8, and 9. As shown in FIG. 8, the connection body 16 includes a first attachment portion 16 a for attaching the first image reading unit 12 and a second attachment portion 16 b for attaching the second image reading unit 14. . The connecting body 16 has a back surface protruding upward in the apparatus height direction with respect to the front surface side in the apparatus depth direction. A first mounting portion 16a is provided on the raised portion. A second attachment portion 16 b is provided on the front side of the connection body 16. The second mounting portion 16b is configured as a pair of arms extending in the front surface side and spaced in the apparatus width direction in the present embodiment.

  The second image reading unit 14 shown in FIG. 9 is disposed between the pair of arm-shaped second attachment portions 16b and 16b. Then, the second image reading unit 14 is fixed to the connection body 16 by a fastening member such as a screw (not shown). Then, by performing wiring work such as power supply and data communication from the connection body 16 to the second image reading unit 14, the mounting work of the second image reading unit 14 to the connection body 16 is completed.

  Next, the first image reading unit 12 is attached to the first attachment portion 16a. Here, hook-shaped latching portions 56, 56 are provided on the first mounting portion 16a. Further, although not shown, an engaging portion for receiving and engaging the latching portions 56 and 56 is provided on the bottom surface of the first image reading unit 12. After the first image reading unit 12 is positioned on the first mounting portion 16a and the latching portion 56 is engaged with an engaging portion (not shown), the first image is read by a fastening member such as a screw (not shown). The reading unit 12 is fixed to the connection body 16 (see FIG. 1).

  Then, by performing wiring work such as power supply and data communication from the connection body 16 to the first image reading unit 12, the work of attaching the first image reading unit 12 to the connection body 16 is completed.

  In this embodiment, in the apparatus depth direction, at least a part of the first image reading unit 12 and at least a part of the second image reading unit 14 are connected to the connection body 16 and overlap in the apparatus depth direction. That is, since at least a part of the second image reading unit 14 is located below the first image reading unit 12 in the apparatus height direction, the connection body 16 includes the second image reading unit 14 and the second image reading unit 14. One image reading unit 12 is connected in this order.

<<< Modification of Example 1 >>>
(1) In the present embodiment, the first and second ribs 42 and 44 are provided on the medium mounting portion 32a. However, instead of this configuration, only the first rib 42 is provided on the medium mounting portion 32a. Also good.
(2) In this embodiment, the image reading unit 26 is provided with the image reading sensors 26A and 26B. However, instead of this configuration, the image reading unit 26 is provided with only one of the image reading sensors 26A and 26B. It is good also as a structure.
(3) In the present embodiment, the rotation shaft 39 is provided on the first member 38 side. However, instead of this configuration, the rotation shaft 39 may be provided on the housing 34 side.
(4) In the present embodiment, the contact portion 50 is configured as a roller member, but instead of this configuration, the contact portion 50 is configured by a resin material or the like and is slid with respect to the first image reading unit 12. It is good. Even in this configuration, it is possible to avoid scratching the first image reading unit 12 or to suppress the degree of scratching.

  In summary, the image reading apparatus 10 according to the present exemplary embodiment places the first image reading unit 12 capable of reading the surface of the medium conveyed along the conveyance path and the medium on the medium reading surface 34a. The second image reading unit 14 capable of reading the surface of the medium and the cover portion 32 provided so as to be switchable between a closed posture and an open posture with respect to the medium reading surface 34a. At least a part of the medium reading surface 34a overlaps at least a part of the first image reading unit 12 in the apparatus height direction.

  The image reading apparatus 10 can read the surface of the medium by placing the medium on the medium reading surface 34a and the first image reading unit 12 that can read the surface of the medium conveyed along the conveyance path. The second image reading unit 14 and a cover portion 32 provided so as to be switchable between a closed posture and an open posture with respect to the medium reading surface 34a are provided. At least a part of the cover part 32 overlaps at least a part of the first image reading unit 12 in the apparatus height direction.

  In addition, the image reading apparatus 10 can close the first image reading unit 12 and rotate the first image reading unit 12 from the closed position to convey the medium to the conveyance path. A medium support unit 18 that is supported in a posture and can be switched between a posture opened with respect to the first image reading unit 12 is provided. At least a part of the medium reading surface 34a overlaps at least a part of the medium support part 18 in a closed posture in the apparatus height direction.

  In addition, the image reading apparatus 10 includes a discharge roller pair 28 that discharges the medium conveyed along the conveyance path in the first image reading unit 12. At least a portion of the cover portion 32 overlaps at least a portion of the discharge roller pair 28 in the apparatus height direction.

  Further, the image reading apparatus 10 includes an image reading unit 26 that reads at least one surface of the medium conveyed along the conveyance path in the first image reading unit 12. At least a part of the cover part 32 overlaps at least a part of the image reading part 26 in the apparatus height direction.

  In addition, the image reading apparatus 10 is provided on the downstream side in the transport direction with respect to the discharge roller pair 28 that discharges the medium transported along the transport path in the first image reading unit 12 and the discharge roller pair 28 in the transport path. The discharge port 30 is provided. At least a part of the medium reading surface 34 a is located between the discharge roller pair 28 and the discharge port 30 in the medium discharge direction in the first image reading unit 12.

  In the image reading apparatus 10, the upper portion of the cover portion 32 is formed as a medium placement portion 32 a for placing a medium discharged from the first image reading unit 12. A displaceable slope member 46 is provided. When the cover portion 32 is in a closed position with respect to the second image reading unit 14, the slope member 46 has a guide posture for guiding the medium discharged from the first image reading unit 12 to the medium placing portion 32a. When the cover 32 is switched from the closed position to the open position with respect to the second image reading unit 14, the cover section 32 is displaced with respect to the cover section 32 and takes a non-guide position that retreats from the conveyance path.

  Further, in the image reading apparatus 10, the cover portion 32 is rotatably attached to the second image reading unit 14 and is rotated with respect to the first member 38 provided with the slope member 46. The second member 40 is connected to the second member 40.

  In the image reading apparatus 10, the slope member 46 is in contact with the first image reading unit 12 and has a contact portion 50 that can be displaced with respect to the first image reading unit 12 in the contacted state.

  In the image reading apparatus 10, the slope member 46 extends in the direction intersecting the medium discharge direction in the first image reading unit 12, that is, in the apparatus width direction, and the contact portion 50 passes the medium in the apparatus width direction. It is provided at a position deviating from the area to be operated.

  Further, in the image reading apparatus 10, the contact portion 50 is configured by a roller member that can rotate while being in contact with the first image reading unit 12.

  In the image reading apparatus 10, the cover portion 32 protrudes upward from the upper portion of the cover portion 32 to at least a part of the downstream end portion in the medium discharge direction of the first image reading unit 12 and extends in the device width direction. An extending first rib 42 is provided.

  Further, in the image reading apparatus 10, the cover portion 32 is provided with a second rib 44 that protrudes upward from the upper portion of the cover portion 32 and extends in the device depth direction at at least a part of at least one end portion in the device width direction. It has been.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.

(Example 2)
10 is an external perspective view of the image reading system according to the second embodiment, FIG. 11 is an external perspective view of the image reading system according to the second embodiment, and FIG. 12 is a first view of the image reading system according to the second embodiment. FIG. 13 is a side sectional view showing a medium conveyance path of the image reading unit of FIG. 13, FIG. 13 is a side view of the image reading system according to the second embodiment, and FIG. 14 is a second image reading in the image reading system according to the second embodiment. FIG. 15 is a perspective view of a connection body of the image reading system according to the second embodiment.

  16 is a perspective view showing a state in which the second image reading unit is connected to the connection body, FIG. 17 is a plan view showing a lower surface of the image reading system according to the second embodiment, and FIG. 18 is a connection body. FIG. 19 is a cross-sectional view showing the relationship between the pair of support portions and the second image reading unit, FIG. 19 is an enlarged cross-sectional view of one support portion and the second image reading unit in FIG. 18, and FIG. FIG. 21 is an explanatory diagram showing a first state in the assembly of the image reading system according to Example 2, FIG. 21 is an explanatory diagram showing a second state in the assembly of the image reading system according to Example 2, and FIG. 12 is an explanatory diagram illustrating a third state in the assembly of the image reading system according to Example 2. FIG.

  FIG. 23 is an explanatory view showing a fourth state in the assembly of the image reading system according to the second embodiment, and FIG. 24 is a side sectional view showing a coupling portion between the connection body and the second image reading unit. 25 is an explanatory view showing a fifth state in the assembly of the image reading system according to the second embodiment. FIG. 26 is an explanatory view showing a sixth state in the assembly of the image reading system according to the second embodiment. 27 is a side sectional view showing a connecting portion between the connection body and the first image reading unit. FIG. 28 is an explanatory view showing a seventh state in the assembly of the image reading system according to the second embodiment. FIG. 29 is an explanatory diagram illustrating an eighth state in assembling the image reading system according to the second embodiment.

  In the XYZ coordinate system shown in each figure, the X direction is the width direction of the image reading system, the paper width direction, the Y direction is the depth direction of the image reading system, and the Z direction is the height direction of the image reading system. Is shown. In each figure, the −Y direction is the front side of the image reading system, and the + Y direction side is the back side of the image reading system. In each figure, the −Y direction is the medium transport direction in the first image reading unit.

<<< Overview of Image Reading System >>>
Referring to FIGS. 10 to 14, an image reading system 110 in this embodiment is shown. The image reading system 110 includes a first image reading unit 112, a second image reading unit 114, and a connection body 116. In the present embodiment, the first image reading unit 112 is detachably connected to the upper portion of the connection body 116, and the second image reading unit 114 is detachably connected to the front portion of the connection body 116. Yes. The attachment / detachment of the first image reading unit 112 and the second image reading unit 114 to the connection body 116 will be described later.

  In the present embodiment, the first image reading unit 112 is configured as a sheet feed scanner, and the second image reading unit 114 is configured as a flat bed scanner. First, the outline of the first image reading unit 112 will be described.

<<< First Image Reading Unit >>>
A medium support unit 118 is provided on the back side of the first image reading unit 112. The medium support unit 118 is attached to the first image reading unit 112 so as to be rotatable. As shown in FIG. 10, the medium support unit 118 is in a non-feeding state that covers the upper portion of the first image reading unit 112 and the feeding port 120 (see FIG. 11) and a non-feeding state as shown in FIG. The feed port 120 is opened by being rotated to the back side of the first image reading unit 112, and a feeding state in which the medium P is supported on the medium support surface 118a can be taken.

  Here, the conveyance path of the medium P will be described with reference to FIG. 12. The feeding roller pair 122, the conveyance roller pair 124, the image reading unit 126, the discharge roller pair 128 and the discharge roller pair 128 are arranged along the conveyance direction from the medium support surface 118 a. Outlets 130 are provided in order. A two-dot chain line with a reference symbol P in FIG. 12 indicates a conveyance path of the medium P. The medium P supported by the medium support surface 118a is nipped by the feed roller pair 122 and directed toward the conveyance roller pair 124. Are sent. The conveyance roller pair 124 nips the medium P and conveys the medium P to the image reading unit 126.

  In this embodiment, the image reading unit 126 includes image reading sensors 126A and 126B. In the present embodiment, the image reading sensor 126A is disposed so as to face one surface (the surface on the lower side in the height direction) of the medium P so as to be able to read the one surface, and the image reading sensor 126B is the other surface of the medium P. The other surface is arranged so as to be readable so as to face (the upper surface in the height direction). The image reading unit 126 is configured to be able to read both sides of the medium P by the image reading sensors 126A and 126B. The medium P on which an image is read by the image reading unit 126 is nipped by the discharge roller pair 128 and is forward of the first image reading unit 112 from the discharge port 130 provided on the front surface of the first image reading unit 112. The sheet is discharged toward the medium placement portion 132a of the cover portion 132 of the second image reading unit 114 that is positioned.

<<< Second Image Reading Unit >>>
Next, the outline of the second image reading unit 114 will be described. The second image reading unit 114 is configured as a flat bed scanner. The second image reading unit 114 includes a housing 134 and a cover portion 132 that is rotatably attached to the housing 134. A rectangular medium reading surface 134 a (see FIGS. 12 and 14) is provided on the upper portion of the housing 134. In this embodiment, the medium reading surface 134a is formed of a flat and transparent glass plate, and a medium P for reading an image can be placed on the upper surface.

  In addition, an image reading unit (not shown) is provided in the housing 134. In this embodiment, the image reading unit moves in the longitudinal direction or the short direction of the medium reading surface 134a below the medium reading surface 134a, so that the medium reading surface of the medium P placed on the medium reading surface 134a. It is comprised so that the surface which opposes 134a can be read.

  An operation unit 136 is provided on the front side of the housing 134 (the −Y axis direction side in FIGS. 10 and 11). The operation unit 136 includes a power switch, a setting switching button, and the like for operating the second image reading unit 114.

  Referring to FIGS. 11 and 14, in the present embodiment, the cover portion 132 has a closed position (see FIG. 11) that covers the medium reading surface 134 a and an open position that exposes the medium reading surface 134 a (see FIG. 14). ) Is switchably attached to the housing 134. Specifically, the cover part 132 is configured to be rotatable with respect to the housing 134. In the present embodiment, the cover portion 132 includes a first member 138 and a second member 140.

  In the present embodiment, a rotation shaft 139 (see FIGS. 12 and 21) is provided at the end of the first member 138 on the back side in the depth direction. The first member 138 is attached to the end of the rear side of the casing 134 in the depth direction so as to be rotatable with respect to the casing 134 with the pivot shaft 139 as a fulcrum. The second member 140 is connected to the end of the first member 138 on the front side in the depth direction so as to be rotatable with respect to the first member 138. In this embodiment, the rotation shaft 139 is configured to be displaceable in the height direction with respect to the housing 134. Accordingly, the cover portion 132 can be separated from the medium reading surface 134a in the height direction while maintaining a closed posture covering the medium reading surface 134a. In other words, the cover 132 is configured to hold the medium P even when the medium P having a relatively large thickness is placed on the medium reading surface 134a.

  A medium pressing member 141 is provided on the lower surface of the first member 138 and the second member 140, that is, the surface facing the medium reading surface 134a. The medium pressing member 141 is made of an elastic body such as a sponge.

  When the cover portion 132 is closed with respect to the casing 134 (see FIG. 12), the medium pressing member 141 receives the medium P placed on the medium reading surface 134a provided in the casing 134. Press uniformly from the opposite side of P to be read. As a result, the surface to be read of the medium pressed by the medium pressing member 141 is in close contact with the medium reading surface 134a. That is, the medium pressing member 141 can prevent the medium P from floating from the medium reading surface 134a. The size of the medium pressing member 141 is substantially the same as the size of the medium reading surface 134a so that the entire area of the surface opposite to the medium reading surface 134a can be pressed in the medium P placed on the medium reading surface 134a. Is set.

  Further, the upper surface of the second member 140 is configured as a medium placement unit 132 a on which the medium P discharged from the first image reading unit 112 is placed.

  A slope member 142 is attached to the upper surface of the first member 138 so as to be rotatable with respect to the first member 138. In the present embodiment, the slope member 142 functions as a guide member that guides the medium P discharged from the discharge port 130 of the first image reading unit 112 to the medium placing portion 132 a of the second image reading unit 114. The slope member 142 extends in the width direction, and engagement portions 144 are provided at both ends thereof. The engaging portion 144 is provided at a position outside the region through which the medium P discharged from the discharge port 130 of the first image reading unit 112 passes in the width direction. In addition, a rotatable roller member 146 (contact portion) is provided at the tip of the engaging portion 144.

  The roller member 146 is in contact with the front surface 112 a of the first image reading unit 112 in a state where the first image reading unit 112 and the second image reading unit 114 are mounted on the connection body 116.

  In the present embodiment, a rotation shaft 142a (see FIG. 12) is provided on the front side in the depth direction of the slope member 142. The slope member 142 is rotatably attached to the first member 138 with the rotation shaft 142a as a fulcrum. In this embodiment, the slope member 142 rotates the slope member 142 in the counterclockwise direction in FIGS. 11 and 14, thereby causing the medium P to be discharged from the discharge port 130 of the first image reading unit 112. From the guide position (see FIG. 11) for guiding the medium placement unit 132a of the second image reading unit 114 to the position (see FIG. 14) retracted from the conveyance path of the medium P discharged from the first image reading unit 112. Switching is possible.

  The slope member 142 is urged to take the first image reading unit 112 side, that is, a guide posture by an urging means (not shown). In addition, when the posture of the slope member 142 is switched from the guide posture to the retracted posture, the roller member 146 maintains a state in contact with the front surface 112a of the first image reading unit 112, and from the lower side to the upper side of the front surface 112a. And displace.

<<< Connected body >>>
The connection body 116 will be described with reference to FIG. As shown in FIG. 15, the connection body 116 includes a first attachment portion 116 a for attaching the first image reading unit 112 and a second attachment portion 116 b for attaching the second image reading unit 114. . In the present embodiment, the connection body 116 has a back surface protruding upward in the height direction with respect to the front surface side in the depth direction. A first attachment portion 116 a is provided on the raised portion, that is, the upper portion of the connection body 116. The first attachment portion 116a functions as a first support surface that can support the first image reading unit 112 when the first image reading unit 112 is placed on the connection body 116.

  Here, referring to FIG. 13, in the present embodiment, the first image reading unit 112 is placed on the connection body 116, and the first mounting portion 116 a supports the first image reading unit 112. ing. The first mounting portion 116a supports a predetermined region of the bottom surface of the first image reading unit 112, that is, a region having a length of ½ or more in the depth direction.

  In addition, in FIG. 15, a pair of arm-like support portions 148 extending to the front surface side and facing each other at an interval in the width direction are formed on the front surface side of the connection body 116. The support portion 148 is provided with a second attachment portion 116b. The second mounting portion 116b is a second support that can support the second image reading unit 114 when the second image reading unit 114 is mounted from the side of the connection body 116 (front side in this embodiment). Functions as a surface. The support portion 148 is formed with at least one hook-like portion 150 that is located above the second attachment portion 116b and faces the second attachment portion 116b. In the present embodiment, the distance between the second mounting portion 116b and the bowl-shaped portion 150 in the height direction is set to be larger than the dimension in the height direction of the casing 134 of the second image reading unit 114. .

  14 and 16, in the present embodiment, the second image reading unit 114 is disposed between a pair of arm-shaped support portions 148. More specifically, the second image reading unit 114 is inserted between the second attachment portion 116 b and the hook-shaped portion 150 in the height direction from the front side of the connection body 116 and attached to the connection body 116. ing. The second mounting portion 116b serving as the second support surface can support a predetermined region of the bottom surface of the second image reading unit 114, that is, a region having a length of ½ or more in the depth direction.

  In the present embodiment, the first mounting portion 116a supports a region having a length of 1/2 or more in the depth direction on the bottom surface of the first image reading unit 112, so that the weight of the first image reading unit 112 is increased. Can receive a lot.

  Similarly, in the present embodiment, the second mounting portion 116b can support a length region of 1/2 or more in the depth direction on the bottom surface of the second image reading unit 114. Can receive a lot of weight.

  Further, as shown in FIG. 13, the gravity center position G3 in the depth direction of the connection body 116 in a state where the first image reading unit 112 and the second image reading unit 114 are attached to the connection body 116 is the first in the depth direction. It is located between the center of gravity position G1 of the first image reading unit 112 and the center of gravity position G2 of the second image reading unit 114.

  Here, as shown in FIG. 13 and FIG. 15, the handle portion 152 is provided at a position corresponding to the gravity center position G <b> 3 in the depth direction in the connection body 116. Therefore, when the image reading system 110 is lifted, the image reading system 110 can be lifted with good balance, and the image reading system 110 can be carried stably.

  In addition, the connection body 116 includes a relay unit 154. In the present embodiment, the relay unit 154 is disposed below the back side of the connection body 116. The relay unit 154 has a circuit board (not shown). The circuit board has a plurality of openings (see FIGS. 28 and 29) provided on the back surface of the connection body 116, and the signal line cable terminals and the like. The terminal of the power supply cable is detachable. A signal line cable 156 extends from the circuit board inside the connection body 116. As shown in FIG. 16, one end of the signal line cable 156 is connected to the circuit board (not shown) of the relay unit 154, and the other end is connected to the second image reading unit 114 attached to the connection body 116. Has been. In this embodiment, the signal line cable 156 not only transmits and receives data between the relay unit 154 and the second image reading unit 114 but also supplies power from the relay unit 154 to the second image reading unit 114. ing. In this embodiment, as an example, the signal line cable 156 is configured as a USB cable.

  Here, the mounting state of the second image reading unit 114 and the connection body 116 will be described with reference to FIGS. As shown in FIG. 17, when the second image reading unit 114 is installed on the installation surface 158 of a desk or the like on the bottom surface 134 b of the housing 134 of the second image reading unit 114, the second image reading unit 114. A plurality of foot portions 160 are provided to support. In this embodiment, as an example, four foot portions 160 are provided on the bottom surface 134b. In the present embodiment, the foot portion 160 is configured as a rubber foot as an example.

  The bottom surface 116c of the connection body 116 is provided with a plurality of foot portions 162 that support the connection body 116 when the connection body 116 is installed on an installation surface 158 such as a desk. In the present embodiment, as an example, four foot portions 162 are provided on the bottom surface 116c. In the present embodiment, the foot portion 162 is also configured as a rubber foot like the foot portion 160.

  As shown in FIGS. 18 and 19, when the connection body 116 to which the first image reading unit 112 and the second image reading unit 114 are mounted is installed on the installation surface 158, the first image reading unit 112 and the connection body. 116 is supported by the foot 162. On the other hand, the second image reading unit 114 is supported by the foot portion 160 and is self-supporting. In this state, the hook-shaped portion 150 of the connection body 116 restricts the displacement of the second image reading unit 114 in the height direction with respect to the connection body 116.

  Further, in this state, the second attachment portion 116b of the connection body 116 and the bottom of the second image reading unit 114 are in a separated state (see FIG. 19). That is, a gap 164 is formed between the second attachment portion 116 b and the bottom of the second image reading unit 114. FIG. 19 is an enlarged view of the area surrounded by the alternate long and short dash line in FIG.

  When the image reading system 110 is lifted from the installation surface 158 in a state where the first image reading unit 112 and the second image reading unit 114 are attached to the connection body 116, the second image reading unit 114 is The second image reading unit 114 is displaced downward by its own weight, and the second mounting portion 116b and the bottom of the second image reading unit 114 come into contact with each other. That is, the gap 164 is eliminated, and the second image reading unit 114 is supported by the second mounting portion 116b.

<<< Assembly of image reading system >>>
Next, assembly of the image reading system 110 will be described with reference to FIGS. Referring to FIG. 20, an end portion on the back surface side of the second image reading unit 114 is shown, and a coupled member 166 is detachably attached to the end portion on the back surface side. The coupled member 166 is provided with a bearing insertion portion 166a that receives the rotation shaft 139 of the first member 138, and an engagement portion 166b that engages with a coupling member 168 described later.

  Next, as shown in FIG. 21, the cover portion 132 is attached to the housing 134 of the second image reading unit 114. Specifically, the rotation shaft 139 of the first member 138 of the cover portion 132 is fitted into the bearing insertion portion 166 a of the coupled member 166. As a result, the cover portion 132 can rotate with respect to the housing 134 with the rotation shaft 139 as a fulcrum.

  Next, as shown in FIG. 22, the second image reading unit 114 is inserted between the pair of support portions 148 from the front side of the connection body 116. At this time, the second image reading unit 114 is inserted into the support portion 148 so that the casing 134 is positioned between the second attachment portion 116b of the support portion 148 and the hook-shaped portion 150 in the height direction. Then, the second image reading unit 114 is abutted against the position restricting portion 170 provided on the connection body 116. In this embodiment, the position restricting unit 170 defines the position of the second image reading unit 114 in the depth direction in the connection body 116. Further, the position restricting portion 170 is provided with an opening 172. In this embodiment, the opening 172 corresponds to a later-described signal line terminal portion 178 (see FIG. 23) provided at the rear side end portion of the housing 134 when the second image reading unit 114 is attached to the connection body 116. It is provided in the position to do.

  Next, as shown in FIGS. 23 and 24, the second image reading unit 114, the connection body 116, and the second image reading unit 114 are used with the coupling member 168 in a state where the second image reading unit 114 is abutted against the position restricting portion 170. To combine. The connecting body 116 is provided with a coupling member attaching portion 174 at a position corresponding to the coupled member 166 of the second image reading unit 114. Further, as shown in FIG. 24, the coupling member 168 has a protruding portion 168a extending in the depth direction and having an end portion on the second image reading unit 114 side protruding downward.

  The protruding portion 168a is received by the engaging portion 166b of the coupled member 166 so as to be relatively movable in the height direction. Further, the protruding portion 168a is engaged with the engaging portion 166b on the back side in the depth direction while being received by the engaging portion 166b. That is, the second image reading unit 114 is restrained by the connecting body 116 in the depth direction by the engagement between the protruding portion 168a and the engaging portion 166b.

  Then, the second image reading unit 114 and the connection body 116 are coupled by attaching the coupling member 168 to the coupling member mounting portion 174 with a fastening member 176 such as a screw. That is, the second image reading unit 114 and the connection body 116 are integrated. Further, in the present embodiment, since the protruding portion 168a and the engaging portion 166b are relatively movable in the height direction, the casing 134 is moved in the height direction between the second mounting portion 116b and the hook-shaped portion 150. Can be displaced.

  Next, as shown in FIG. 25, the other end of the signal line cable 156 extending from the relay portion 154 to the signal line terminal portion 178 (see FIG. 20) provided at the end portion of the second image reading unit 114 in the depth direction. And the relay unit 154 and the second image reading unit 114 are electrically connected. Thereby, the mounting operation of the second image reading unit 114 to the connection body 116 is completed. In this embodiment, the signal line cable 156 is supplied with power from the relay unit 154 to the second image reading unit 114 in addition to data transmission / reception.

  Next, the mounting of the first image reading unit 112 on the connection body 116 will be described with reference to FIGS. A hook-shaped latching portion 180 (see FIGS. 15 and 27) is provided on the first attachment portion 116a of the connection body 116. Further, a hooked portion 182 (see FIG. 27) that can be engaged with the hooking portion 180 is provided at the bottom of the first image reading unit 112.

  As shown in FIG. 26, the first image reading unit 112 is placed on the upper part of the connection body 116, specifically on the first attachment portion 116a. At this time, the first image reading unit 112 is placed on the first attachment portion 116a on the side away from the slope member 142 in the depth direction, that is, on the back side. As a result, the latching portion 180 of the first attachment portion 116a is received by the latched portion 182 at the bottom of the first image reading unit 112 (see the two-dot chain line portion in FIG. 27). Then, after placing the first image reading unit 112 on the first attachment portion 116a, the first image reading unit 112 is slid to the front side in the depth direction, that is, the slope member 142 side. Thereby, the latching | locking part 180 of the 1st attachment part 116a engages with the to-be-latched part 182 (refer the continuous line part of FIG. 27).

  Next, as shown in FIG. 28, the first image reading unit 112 and the connection body 116 are coupled by the coupling member 184. Specifically, a coupling member 184 straddling the back surface of the first image reading unit 112 and the back surface of the connection body 116 is attached to the connection body 116 by a fastening member 186 such as a screw. Thereby, the first image reading unit 112 and the connection body 116 are integrated.

  29, on the back side of the connection body 116, the power line cable 188 extending from the relay unit 154 and the signal line cable 190 are connected to the power supply terminal and the signal provided on the back side of the first image reading unit 112. Connect to each wire terminal. Thereby, the mounting operation of the first image reading unit 112 to the connection body 116 is completed. In this state, the first image reading unit 112 and the second image reading unit 114 are integrated via the connection body 116.

  Further, as shown in FIG. 29, a power supply terminal 192 for supplying power to the first image reading unit 112 and the second image reading unit 114 via the relay unit 154 is provided on the back surface of the connection body 116, and the relay Signal lines for transmitting and receiving data such as image reading data and control signals for operating the image reading units 112 and 114 to the first image reading unit 112 and the second image reading unit 114 via the unit 154. A terminal 194 is provided.

  The power supply terminal 192 is connected to an external power source or the like by a power supply cable (not shown). The signal line terminal 194 is also connected to an external input device such as a PC by a signal line cable (not shown).

<<< Modification of Example 2 >>>
(1) In this embodiment, the power supply and the signal transmission / reception are performed by the signal line cable 156 between the second image reading unit 114 and the connection body 116. However, the power supply and the signal transmission / reception are different cables. It is good also as a structure divided and divided.
(2) In the present embodiment, power supply and signal transmission / reception are performed between the first image reading unit 112 and the connection body 116 by the power line cable 188 and the signal line cable 190, respectively. A configuration may be adopted in which power is supplied and signals are transmitted and received with a single cable, such as between the unit 114 and the connection body 116.

  In summary, the image reading system 110 places the first image reading unit 112 capable of reading the surface of the medium conveyed along the conveying path, and the medium surface on the medium reading surface 134a. The second image reading unit 114 capable of reading the image, the first image reading unit 112 and the second image reading unit 114 are detachably mounted, and the first image reading unit 112 and the second image reading unit are detachably mounted. A connecting body 116 that integrates the first image reading unit 112 and the second image reading unit 114 in a state where the image reading unit 114 is mounted is provided.

  According to the above configuration, since the first image reading unit 112 and the second image reading unit 114 are detachably attached to the connection body 116, for example, when the image reading system 110 is transported, the connection body 116. At least one of the first image reading unit 112 and the second image reading unit 114 can be removed and transported. That is, instead of carrying the image reading system 110 as a single unit, a part of the image reading system 110 can be removed and carried in a plurality of parts, and the carrying weight per time can be reduced. As a result, since the image reading system 110 can be easily carried, the transportability of the image reading system 110 can be improved.

  Further, in the image reading system 110, for example, when the first image reading unit 112 or the second image reading unit 114 fails, the failed first image reading unit 112 or second image reading unit 114 is connected to the connection body 116. The first image reading unit 112 or the second image reading unit 114 that has not failed can be continuously used while being removed from the printer for repair. Further, by replacing the failed first image reading unit 112 or the second image reading unit 114, the state of the first image reading unit 112 or the second image reading unit 114 can be quickly restored. The period during which the image reading system 110 cannot be used can be shortened. Therefore, convenience in the image reading system 110 can be improved.

  In the present embodiment, the first image reading unit 112 is mounted on the upper surface of the connection body 116, and the second image reading unit 114 is mounted on the connection body 116 from the side of the connection body 116. According to the above configuration, when the first image reading unit 112 and the second image reading unit 114 are attached to the connection body 116, the first image reading unit 112 is attached to the connection body 116 from above. On the other hand, the second image reading unit 114 is attached to the connection body 116 from the side. As a result, the mounting path of the first image reading unit 112 and the second image reading unit 114 does not interfere with each other in the mounting operation of the image reading units 112 and 114 to the connection body 116. The workability of the work can be improved.

  In addition, according to the present embodiment, the connection body 116 includes the first mounting portion 116 a that can support at least a part of the bottom surface of the first image reading unit 112, and at least a part of the bottom surface of the second image reading unit 114. And a second mounting portion 116b capable of supporting the above. The first attachment portion 116 a can support a region having a length of ½ or more in the predetermined direction of the bottom surface of the first image reading unit 112, and the second attachment portion 116 b is a bottom surface of the second image reading unit 114. It is possible to support a region having a length of ½ or more in the predetermined direction.

  According to the above configuration, in the connection body 116, the first attachment portion 116 a can support a length region of 1/2 or more in the depth direction on the bottom surface of the first image reading unit 112, and the second attachment portion 116 b In the bottom surface of the second image reading unit 114, it is possible to support a region having a length of ½ or more in the depth direction. That is, when the image reading system 110 is carried with the first image reading unit 112 and the second image reading unit 114 mounted on the image reading system 110, the first image reading unit 112 and the second image reading unit 114 are transported. Since more than half of the bottom surface is supported by the connection body 116, an excessive load is applied to the connection portion between the connection body 116 and the first image reading unit 112 and the connection portion between the connection body 116 and the second image reading unit 114. Occurrence can be suppressed, and damage to the image reading system 110 can be suppressed.

In addition, according to the present embodiment, the handle portion 152 is located at a position corresponding to the gravity center position G3 of the connection body 116 in a state where the first image reading unit 112 and the second image reading unit 114 are attached to the connection body 116. Is provided.
According to the above configuration, when the image reading system 110 is carried with the first image reading unit 112 and the second image reading unit 114 mounted on the connection body 116, the image reading system 110 can be carried stably. it can.

  According to this embodiment, the second image reading unit 114 guides the medium ejected from the first image reading unit 112 to the upper part of the second image reading unit 114, that is, the medium placement part 132 a of the cover part 132. A slope member 142 is provided. A hooked portion 182 is provided below the first image reading unit 112, and a hooking portion engageable with the hooked portion 182 of the first image reading unit 112 is provided above the connecting body 116. 180 is provided. The engagement between the hooking portion 180 and the hooked portion 182 is performed by placing the first image reading unit 112 on the upper part of the connection body 116, that is, after placing the first image reading unit 112 on the first mounting portion 116 a, and then slope the first image reading unit 112. This is done by sliding it toward the member 142 side.

  According to the above configuration, the first image reading unit 112 is slid to the slope member 142 side after being placed on the upper part of the connection body 116, that is, on the side away from the slope member 142 in the first attachment portion 116a. When the first image reading unit 112 is placed on the first attachment portion 116 a of the connection body 116, the first image reading unit 112 can be prevented from interfering with the slope member 142, and damage to the slope member 142 can be suppressed.

In the present embodiment, the connection body 116 is provided with a hook-shaped portion 150 that covers a part of the second image reading unit 114 when the second image reading unit 114 is mounted.
According to the above configuration, when the second image reading unit 114 is attached to the connection body 116, the hook-shaped portion 150 can regulate the upward displacement of the second image reading unit 114.

  In the present embodiment, the connection body 116 includes a pair of support portions 148 that protrude in the medium discharge direction of the first image reading unit 112 and face each other with a gap in the direction intersecting the discharge direction. The support portion 148 is provided with a hook-shaped portion 150.

  In this embodiment, the image reading system 110 is connected to the bottom of the second image reading unit 114 when the connection body 116 with the second image reading unit 114 mounted thereon is placed on the installation surface 158. A gap 164 is formed between the body 116 and the connection body 116 is lifted from the installation surface 158, whereby the gap 164 is eliminated and the second image reading unit 114 is supported by the connection body 116. .

  Since at least a part of the medium reading surface 134a (which constitutes the second image reading unit 114) in this embodiment overlaps at least a part of the first image reading unit 112 in the height direction of the image reading system. In the direction intersecting the height direction, specifically, in the depth direction of the image reading system in the present embodiment, the second image reading unit 114 enters the area of the first image reading unit 112, and in the depth direction. The size of the image reading system can be reduced.

  In addition, since at least a part of the cover portion 132 (which constitutes the second image reading unit 114) in the present embodiment overlaps at least a part of the first image reading unit 112 in the height direction, the height direction The second image reading unit 114 enters the area of the first image reading unit 112 in the direction intersecting with the image, specifically in the depth direction in this embodiment, and the size of the image reading system in the depth direction is reduced. can do.

  In addition, at least a part of the medium reading surface 134a (which constitutes the second image reading unit 114) in this embodiment is a medium support portion 118 (which constitutes the first image reading unit 112) in a closed position in the height direction. Since the second image reading unit 114 is in the area of the first image reading unit 112 in the depth direction, the size of the image reading system in the depth direction is reduced. be able to.

  In addition, at least a part of the cover portion 132 (which constitutes the second image reading unit 114) in the present embodiment is at least one of the discharge roller pair 128 (which constitutes the first image reading unit 112) in the height direction. Therefore, the second image reading unit 114 enters the area of the first image reading unit 112 in the depth direction, and the size of the image reading system in the depth direction can be reduced.

  Further, at least a part of the cover part 132 (constituting the second image reading unit 114) in the present embodiment is at least a part of the image reading part 126 provided in the first image reading unit 112 in the height direction. Therefore, the second image reading unit 114 enters the area of the first image reading unit 112 in the depth direction, and the size of the image reading system in the depth direction can be reduced.

  In addition, at least a part of the medium reading surface 134a (which constitutes the second image reading unit 114) in the present embodiment is disposed between the discharge roller pair 128 and the discharge port 130 in the medium discharge direction in the first image reading unit 112. Therefore, the second image reading unit 114 enters the area of the first image reading unit 112 in the medium discharging direction, and the size of the image reading system in the discharging direction is reduced. Can do.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.

  DESCRIPTION OF SYMBOLS 10 ... Image reading device, 12, 112 ... 1st image reading unit, 14, 114 ... 2nd image reading unit, 16, 116 ... Connection body, 18, 118 ... Medium support part, 26, 126 ... Image reading part 28, 128 ... discharge roller pair, 30, 130 ... discharge port, 32, 132 ... cover portion, 32a, 132a ... medium placement portion, 34a, 134a ... medium reading surface, 38, 138 ... first member, 40, 140 ... second member, 46, 142 ... slope member, 50 ... contact portion, 110 ... image reading system, 116a ... first attachment portion, 116b ... second attachment portion, 146 ... roller member, 152 ... handle portion, 154 ... Relay unit, 156, 190 ... signal line cable, 170 ... position regulating unit, 188 ... power line cable, G3 ... center of gravity position of connection body, P ... medium, Y ... depth direction, Z ... height direction.

Claims (17)

A first image reading unit capable of reading the surface of the medium conveyed along the conveyance path;
A second image reading unit capable of placing the medium on the medium reading surface and reading the surface of the medium;
An opening / closing body provided so as to be switchable between a closed posture and an open posture with respect to the medium reading surface,
At least a part of the medium reading surface overlaps at least a part of the first image reading unit in the apparatus height direction. A first image reading unit capable of reading the surface of the medium conveyed along the conveyance path;
A second image reading unit capable of placing the medium on the medium reading surface and reading the surface of the medium;
An opening / closing body provided so as to be switchable between a closed posture and an open posture with respect to the medium reading surface,
At least a part of the opening / closing body overlaps at least a part of the first image reading unit in the apparatus height direction. The image reading apparatus according to claim 1 or 2,
A closed posture with respect to the first image reading unit, and a support mechanism in which the medium rotates from the closed posture with respect to the first image reading unit and can be transported to the transport path. A medium support unit capable of switching between an open posture with respect to one image reading unit;
At least a part of the medium reading surface overlaps at least a part of the medium support part in the closed posture in the apparatus height direction. The image reading apparatus according to claim 1 or 2,
A discharge unit configured to discharge the medium transported along the transport path in the first image reading unit;
At least a part of the opening / closing body overlaps at least a part of the discharge means in the apparatus height direction. The image reading apparatus according to claim 1 or 2,
An image reading unit that reads at least one surface of the medium conveyed along the conveyance path in the first image reading unit;
At least a part of the opening / closing body overlaps at least a part of the image reading unit in the apparatus height direction. The image reading apparatus according to claim 1 or 2,
A discharge means for discharging the medium transported along the transport path in the first image reading unit;
A discharge port provided on the downstream side in the transport direction with respect to the discharge means in the transport path,
At least a part of the medium reading surface is located between the discharge unit and the discharge port in the medium discharge direction of the first image reading unit. In the image reading apparatus according to any one of claims 2, 4, and 5,
The upper part of the opening / closing body is formed as a medium placement unit for placing a medium discharged from the first image reading unit,
The opening / closing body is provided with a slope member displaceable with respect to the opening / closing body,
The slope member has a guide posture for guiding the medium ejected from the first image reading unit to the medium placing portion when the opening / closing body is in a posture closed with respect to the second image reading unit. When the opening / closing body is switched from the closed position to the open position with respect to the second image reading unit, the non-guide position is set such that the opening / closing body is displaced from the transfer path by being displaced with respect to the opening / closing body. An image reading apparatus. The image reading apparatus according to claim 7.
The opening / closing body is rotatably attached to the second image reading unit and has a first member provided with the slope member;
And a second member rotatably connected to the first member. The image reading apparatus according to claim 7 or 8,
The image reading apparatus according to claim 1, wherein the slope member is in contact with the first image reading unit, and has a contact portion that can be displaced with respect to the first image reading unit in the contact state. The image reading apparatus according to claim 9.
The slope member extends in a direction intersecting with the medium ejection direction in the first image reading unit, and the contact portion is provided at a position outside the region through which the medium passes in the intersecting direction. An image reading apparatus. The image reading apparatus according to claim 9 or 10,
The image reading apparatus according to claim 1, wherein the contact portion is configured by a roller member that is rotatable in a state of being in contact with the first image reading unit. An image reading device according to any one of claims 1 to 11,
The first image reading unit and the second image reading unit are detachably mounted, and the first image reading unit is mounted in a state where the first image reading unit and the second image reading unit are mounted. A connecting body for integrating the unit and the second image reading unit;
An image reading system comprising: The image reading system according to claim 12, wherein
The image reading system, wherein the first image reading unit is mounted on an upper surface of the connection body, and the second image reading unit is mounted on the connection body from a side of the connection body. The image reading system according to claim 12 or 13,
The connection body includes a first support surface capable of supporting at least a part of the bottom surface of the first image reading unit, and a second support surface capable of supporting at least a part of the bottom surface of the second image reading unit. And
The first support surface can support a length region of 1/2 or more in a predetermined direction of the bottom surface of the first image reading unit;
The image reading system, wherein the second support surface is capable of supporting a region having a length of ½ or more in a predetermined direction of the bottom surface of the second image reading unit. The image reading system according to any one of claims 12 to 14,
The connecting body is provided with a handle portion at a position corresponding to the center of gravity of the connecting body in a state where the first image reading unit and the second image reading unit are attached. Image reading system. The image reading system according to any one of claims 12 to 15,
The image reading system, wherein the connection body includes a position restricting portion that defines a position of the second image reading unit in the depth direction. The image reading system according to claim 16, wherein
The connection body includes a cable relay section on the back side in the depth direction of the position restricting section.

Images