JP6867192B2 - Image reader - Google Patents

Description

The present invention relates to, for example, an image reading device for reading an image of a manuscript made of a sheet material such as paper or a booklet.

Conventionally, a flatbed scanner has been known that scans a carriage, which is an image reading means, along a document surface and scans an image of a document on a mounting table above the carriage (see, for example, Patent Document 1). In such a conventional flatbed scanner, a control board connected to the image reading unit via a connection cable is provided in the flatbed scanner or in the main body of the image forming apparatus on which the flatbed scanner is mounted. ..

Japanese Unexamined Patent Publication No. 2016-189240

In the image reading device disclosed in Patent Document 1, when the control board is maintained, it is necessary to open the housing and the mounting table of the image reading device and work inside the housing and the mounting table. Therefore, there is a possibility that dust or dirt may enter the inside of the image reading device and white spots or black spots may appear in the read image.
In addition, when the connection cable moves inside the main body, even if it breaks in an unintended direction, it is necessary to open the housing and the mounting table to work inside.

In view of the above, the image reader according to the present invention
A housing with a document mounting table on the upper surface on which the document is placed,
An image reading means for reading a document placed on the document mounting table, and
A moving means for moving the image reading means in a sub-scanning direction orthogonal to the main scanning direction of the image reading means, and
A control board on which a control means for controlling the reading operation by the image reading means is mounted, and
A connecting means for connecting the control board and the image reading means is provided.
The housing has a recess formed from the bottom surface side toward the inside of the housing, and the control board is arranged in the recess.
The movable portion of the connecting means, including the portion that moves with the movement of the image reading means, is arranged in the accommodation space between the side wall inside the housing and the side wall inside the housing of the recess, and the moving means. It is characterized in that it slides in the accommodation space with the movement of the image reading means.

According to the present invention, it is possible to maintain the control board without opening the housing and the mounting table of the image reading device, and it is possible to perform stable sliding by the connecting means.

The perspective view of the image reading apparatus which concerns on one Embodiment of this invention. Top view of the image reader according to the embodiment of the present invention. The bottom view of the image reading apparatus which concerns on one Embodiment of this invention. The rear view of the image reading apparatus which concerns on one Embodiment of this invention. The perspective view of the main part of the image reading apparatus which concerns on one Embodiment of this invention. The enlarged view of the main part of the image reading apparatus which concerns on one Embodiment of this invention. Another perspective view of a main part of the image reading device according to the embodiment of the present invention. Sectional drawing of the image reading apparatus which concerns on one Embodiment of this invention. Another cross-sectional view of the image reader according to an embodiment of the present invention.

(First Embodiment)
Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of an embodiment of a flatbed scanner as an example of the image reader of the present invention.

As shown in FIG. 1, in the flatbed scanner 1 of the present embodiment, the document D is arranged on the document table glass (document mounting table) 11 provided on the upper part of the lower housing 60, and the document D is placed by the opening / closing lid 20. A carriage (including an image reading sensor 41 such as a CCD [Charge Coupled Device] or CIS (Control Image Sensor), which is an example of an image reading means) 40 provided in the main body of the flatbed scanner 1 is covered and mounted in the direction of the arrow y. This is a device that scans and reads an image of a document D.

In the present embodiment, the opening / closing lid 20 that can be opened / closed with respect to the main body of the flatbed scanner 1 is rotatably arranged in the longitudinal direction (on the yz plane).

The opening / closing lid 20 is a member that covers the platen glass 11 and the document D placed on the platen glass 11.

FIG. 2 is a top view of the flatbed scanner 1 according to the present embodiment. The flatbed scanner 1 is provided with an operation portion 50 adjacent to the opening / closing lid 20 at an end portion (diameterally tip side in the rotation) opposite to the hinge in the rotation operation of the opening / closing lid 20.

The operation unit 50 is composed of a scan start button 51, a scan stop button 52, and a power button 53. When the scan start button 51 is pressed, the carriage 40 moves in the sub-scanning direction (y direction) while moving the image. When the scanning sensor scans in the main scanning direction, image scanning of the document D on the document mounting table 11 is started. Regarding the start of scanning, the scanning setting may be transmitted from the application side operating in the information processing device connected to the flatbed scanner 1, and at the same time, an instruction to start scanning may be transmitted, or a combination thereof may be used. That is, when the application of the information processing device detects that the scan start button 51 has been pressed in the flatbed scanner 1, the information processing device sends the scan setting and the scan start instruction to the flatbed scanner 1 again to scan. It may be carried out. Further, the information processing device connected to the flatbed scanner 1 may be located at a remote location via a network, and the connection method is not limited to wire, and may be performed by wireless communication.

FIG. 3 is a bottom view of the flatbed scanner 1 according to the present embodiment. FIG. 3A shows a state in which the board cover 61 is attached to the flatbed scanner 1, and FIG. 3B shows a state in which the board cover 61 is removed from the flatbed scanner 1.

As shown in FIG. 3A, a substrate cover 61 formed separately from the lower housing 60 is provided on the bottom surface of the flatbed scanner 1. The board cover 61 is provided in the central portion of the lower housing 60, and is fixed to the lower housing 60 with screws. At the position where the board cover 61 is provided in the lower housing 60 of FIG. 3B, a recess 62 formed toward the inner side of the lower housing 60 is provided, and the recess 62 is controlled. The substrate 63 is arranged. In the present embodiment, the recess 62 is integrally provided from the end to the other end of the lower housing 60 with respect to the scanning direction (y direction) of the carriage 40.

The control board 63 is connected to the image reading sensor 41 by a connection cable (connection means) 64. The connection cable 64 is composed of a flexible flat cable (FFC) or the like, and a scan start signal based on the fact that the scan start button 51 is pressed is transmitted to the control unit (control means) 68 mounted on the control board 63. .. When the scan start signal is transmitted to the control unit 68, the control unit 68 transmits a control signal to the image reading sensor 41 via the connection cable 64 based on the set scan settings, and at the same time, the carriage 40 By transmitting the control signal to the driving means, the image reading operation of the document D is executed. The control signal to the drive means may be transmitted via the connection cable 64, but in the present embodiment, since the drive means is provided separately from the carriage 40, another cable is used. The control unit 68 performs general drive control of the image reading sensor 41 and the carriage 40 in addition to the start of scanning, and is composed of a CPU and an ASIC as an example.

The control board 63 is fixed to the recess 62 with screws. The control board 63 may be fastened together with screws that attach the board cover 61 to the lower housing 60. However, the substrate cover 61 itself may be fixed by fitting with a claw or the like without using a fixing member such as a screw, or may be fixed by combining them. One end of the connection cable 64 is connected to the image reading sensor 41, and the other end is connected to the connector 63a provided on the control board 63. The routing of the connection cable 64 from the image reading sensor 41 to the control board 63 will be described later.

A carriage lock member 65 for restricting the movement of the carriage 40 in the scanning direction (y direction) is provided on the right side of the paper surface in FIG. 3 with respect to the lower housing 60. The carriage lock member 65 is provided so as to be slidable with respect to the lower housing 60, and the movement of the carriage 40 is restricted by sliding the carriage lock member 65 to a fixed position. Although the details will be described later, the movement of the carriage 40 is restricted, so that, for example, when the flatbed scanner 1 is moved, the carriage 40 moves indiscriminately inside the housing 100, and an unnecessary load is applied. Can be prevented.

FIG. 4 is a rear view of the flatbed scanner 1 according to the present embodiment, showing that a cable connection space 70 is formed. As shown in FIG. 4, a power cable 71 that supplies power to the power board is connected to the power board via a connector, and power is supplied to the device. Further, a communication cable 72 for connecting an information processing device for transmitting a scanned image of the document D acquired by the flatbed scanner 1 and receiving a scanning setting is also connected to the control board 63 via a connector. As the communication cable 72, a USB cable or the like is used. In this embodiment, the control board 63 and the power supply board are configured as a common board.

FIG. 5 is a perspective view of a main part of the image reading device according to the embodiment of the present invention. As shown in this figure, a protrusion 81 corresponding to the recess 62 on the bottom surface is formed inside the lower housing 60. However, in the following description, since the protruding portion 81 is a portion corresponding to the recess 62 on the bottom surface, it may be described as the recess 62. Further, the projecting portion 81 forms the wall portion 81a substantially perpendicular to the document mounting table 11 so that the connection cable 64 can be guided when the carriage 40 moves in the sub-scanning direction.

A cable accommodating space 82 is provided between the wall portion 81a and one side wall of the lower housing 60, and as the carriage 40 is scanned in the y direction, the movable portion 64a of the connection cable 64 accommodates the cable. It slides on the bottom surface of the space 82. That is, when the carriage 40 is located on one end side, the connection cable 64 is located along one side wall of the lower housing 60, and when the carriage 40 is located on the other end side, the wall portion. It is located along 81a.

In the present embodiment, one end of the cable accommodating space 82 in the x direction is formed by the wall portion 81a, and the cable accommodating space 82 is formed by the wall portion 81a formed by the recess 62. I can say. The wall portion 81a does not necessarily have to exist uniformly in the y direction, but at least the wall portion 81a forms the cable accommodating space 82 over the movable range of the movable portion 64a of the connection cable 64. It is preferred to be present.

Further, in the present embodiment, as shown in FIGS. 3 and 5, a recess 62 is provided in the lower housing 60, and a corresponding protruding portion 81 is provided on the inner surface of the lower housing 60. Considering the purpose of accommodating the control board 63 inside the recess 62, the recess 62 may be formed in a size capable of accommodating the control board 63 inside the recess 62, and in the present embodiment, the recess 62 may be formed in the y direction in the lower housing 60. It is provided only in the central part of.

On the other hand, the protruding portion 81 on the inner side of the lower housing 60 is provided from one end to the other end in the y direction of the lower housing 60. According to this configuration, it is possible to prevent the sound generated when the carriage 40 moves in the y direction from reverberating inside the lower housing 60 and being heard as an abnormal sound outside the housing 100. That is, according to the structure of the present embodiment, the flatbed scanner 1 is prevented from generating abnormal noise, and the protrusion 81 is provided in the lower housing 60 to improve the strength of the lower housing 60. It will be possible.

It is preferable that the protrusion 81 is provided from one end side to the other end side of the lower housing 60 as in the present embodiment, but it is not always necessary, and for example, in consideration of a design space due to another configuration, etc. Even if the other end side is configured so that the protruding portion 81 is provided only halfway, the reverberation of the sound inside the lower housing 60 can be reduced. Even in that case, it is preferable that the protruding portion 81 is provided with respect to the central portion of the lower housing 60, it is preferable that the protruding portion 81 is provided at the position of the recess 62, and it is more preferable that the protruding portion 81 is projected toward the platen 11 side as much as possible. Specifically, it is preferable that the protrusion amount is such that it does not slightly overlap the region through which the carriage 40 passes, and when the rib 81c is provided, the protrusion amount in the z direction is smaller than that. preferable.

FIG. 6 is an enlarged view of a main part of the image reading device according to the embodiment of the present invention. The carriage 40 in the present embodiment has a cable fixing member 45, and as shown in FIG. 6, the image reading sensor 41 provided on the carriage 40 after fixing the connection cable 64 to the cable fixing member 45. The connection cable 64 is connected to the connection cable 64. At this time, the connection cable 64 is connected in parallel with the document mounting table 11 to the connection position 41a with respect to the image reading sensor 41, and among the connection cables 64, the cable fixed portion 64b is fixed as follows. It is fixed to the member 45.

That is, it is attached by being inserted into the image reading sensor 41 in the positive direction of the y-axis in FIG. 6, stretched from there in the negative direction of the y-axis, and folded back 180 degrees to the negative direction of the z-axis at the bent portion 64b1. .. At this time, the upper portion of the bent portion is pressed by the first fixing claws 45a provided at both ends of the cable fixing member 45 in the x direction.

The connection cable 64 is bent at the bent portion 64b1, stretched in the positive direction of the y-axis, and then folded back 180 degrees in the negative direction of the z-axis again at the bent portion 64b2. That is, the bent portion 64b1 and the bent portion 64b2 bend the second floor in a bellows shape. After that, the connection cable 64 stretched in the negative direction of the y-axis is bent 90 degrees in the negative direction of the z-axis at the bent portion 64b3 at the midpoint between the bent portion 64b1 and the bent portion 64b2.

After that, the bending portion 64b4 is bent at an angle of 45 degrees so as to rotate on the positive side of the y-axis and extend the connecting cable 64 in the positive direction of the x-axis. Connection by a second fixing claw 45b for holding a portion extending in the negative direction of the z-axis from the bent portion 64b3 to the bent portion 64b4 Connection that tries to spread in the negative direction of the y-axis by the elasticity (restoring force) of the cable 64 itself. The cable 64 is held on the cable fixing member 45 side.

At the time of bending at the bent portion 64b4, the connecting cable 64 is pulled down to a position where it does not overlap with the carriage 40 in the z direction. At the same time, the connection cable 64 is perpendicular to the platen 11 because it is folded back at the bent portion 64b4.

The cable fixing member 45 has a cable guide 46 along the connection cable 64 which has been changed to be perpendicular to the document mounting table 11. The connection cable 64 is bent at the bent portion 64b4 from one end side to the other end side of the lower housing 60. Then, the connection cable 64 is bent toward the other end side, and then the connection cable 64 drawn out so as to extend in the x direction is pulled out to one end side again, so that the connection cable 64 is connected to the cable guide 46. It is urged by its own elasticity.

With this configuration, as shown in FIG. 7, the carriage 40 moves above the connecting cable 64 (movable portion 64a) (in the positive direction of the z-axis) and moves to the other end side, and the connecting cable 64 moves to the other end side. Even if it extends from 40 toward one end side, it is possible to secure elasticity due to the elasticity of the connection cable 64 itself up to the vicinity of the tip of the cable guide 46, and when the carriage 40 moves to one end side again, the carriage It is possible to prevent the connection cable 64 from being caught under the 40.

Further, since the connection cable 64 is arranged perpendicular to the document mounting table 11 (the width direction of the cable is perpendicular to the document mounting table 11), sliding friction with the bottom surface of the cable accommodating space 82 is suppressed. .. The movement of the lower housing 60 of the carriage 40 from one end side to the other end side is repeated many times each time the reading operation is performed. Therefore, it is possible to prevent the connection cable 64 from being caught or broken due to a load.

Further, when the connection cable 64 is extended in parallel with the platen 11, the connection cable 64 may be attached to the platen 11 when the carriage 40 is moved. This is because when the surface (original side) of the platen 11 formed of an insulator such as glass is charged with either positive or negative charges, the other surface (inside the housing 100) is charged with the other charge. .. By arranging the connection cable 64 (particularly the movable portion 64a) so as to be orthogonal to the platen 11 as in the present embodiment, even if the platen 11 is charged due to friction with the document or the like. It is possible to prevent the connection cable 64 from sticking to the platen 11. By doing so, it is possible to prevent the connection cable 64 attached to the platen 11 from hindering the movement when the carriage 40 moves to the other end side (y-axis positive direction side) of the housing 100.

Further, the connection cable 64 provided so as to be orthogonal to the document mounting table 11 is located near the central portion in the y direction (sub-scanning direction), and the connecting cable 64 is parallel to the document mounting table 11 on one side surface of the lower housing 60. After being twisted so as to be twisted so as to be pulled out along the inner wall on the bottom surface side of the lower housing 60, it is inserted through the opening 81b provided in the wall portion 81a to the bottom surface side of the lower housing 60.

At this time, the connection cable 64 is bent 45 degrees at the other end side of the position fixed by the fitted portion 64d and is directed again in the direction parallel to the document mounting table 11 along the bottom surface of the lower housing 60. After being stretched toward the wall portion 81a, it penetrates the wall portion 81a and is connected to the control board 63. In order to communicate the connection cable 64 from the inside of the lower housing 60 into the recess 62 in this way, the fixed position of the control board in the recess 62 with respect to the z direction is substantially flush with the bottom surface of the lower housing 60. Is preferable.

In this way, the connection cable 64 is routed from the inside of the housing 100 through the wall portion 81a to the bottom surface side of the lower housing 60, and is connected to the control board 63 arranged in the recess 62. By doing so, at the time of maintenance of the control board 63, the control board 63 can be accessed only by removing the board cover 61, so that the maintainability is improved. Further, in the maintenance of the control board 63, since only the recess 62 is opened to the outside, it is possible to prevent foreign matter from entering the housing 100. In an image reading device such as the present embodiment, if dust or dirt adheres to a glass document placing table 11 or the like from the inside of the housing 100, white spots or black spots may appear on the image. Therefore, as in the present embodiment, the effect of providing the recess 62 so that the control board 63 can be attached to the housing 100 from the outside is remarkably exhibited.

On the other hand, with such a configuration, the control board 63 is likely to be arranged near the bottom surface of the lower housing 60, and is easily affected by static electricity or the like from the bottom surface side. On the other hand, in the present embodiment, as shown in FIG. 8, the sheet metal 69 is arranged between the control board 63 and the board cover 61. As a result, the influence of static electricity or the like on the control board 63 can be suppressed. The sheet metal 69 may be fixed to the board cover 61 by screws or fitting so that it can be removed from the lower housing 60 integrally with the board cover 61, or may be fixed by adhesion.

According to this configuration, it is possible to prevent deterioration of maintainability while taking measures against static electricity and the like. Further, the substrate cover 61 may be fixed to the lower housing 60 by co-tightening the screws for fixing the board cover 61 to the lower housing 60. In this way, the fixing of the sheet metal 69 can be removed by removing the substrate cover 61, and it is possible to prevent the workability from being lowered. Further, the sheet metal 69 in the present embodiment is fixed so as to be in close contact with the inner side of the housing 100 of the substrate cover 61, and has a size capable of covering the control substrate 63 in the z direction.

FIG. 9 is a cross-sectional view of an image reading device according to an embodiment of the present invention. A cross section of AA in FIG. 9A is shown in FIG. 9B. The rib 81c is provided on the end portion (upper end portion) of the wall portion 81a on the document mounting table 11 side so as to protrude from the end portion on the document mounting table 11 side in the other portion of the protruding portion 81. .. Further, a shaft 42a extending from one end side to the other end side of the lower housing 60 is inserted into the engagement hole member 43 provided in the lower part of the carriage 40, and the carriage 40 is moved by the engagement portion provided in the carriage 40. The belt (moving means) engaged with is controlled by the control board 63. In the present embodiment, the belt and the motor for driving the belt are used as the moving means, but the moving means is not limited to this, and various changes such as the motor and the lead screw can be made.

The engaging hole member 43 is formed in a cylindrical shape having a predetermined length in the y direction with respect to the shaft 42a. In the present embodiment, the rib 81c is formed at a predetermined position from the center in the x direction, and the shaft 42a is provided on the opposite side thereof to support the movement of the carriage 40, and the position between them (center in the x direction). A belt for driving the carriage 40 is provided on the side). The belt is provided on the shaft 42a side, which can prevent the carriage 40 from tilting and moving when the driving force of the belt is transmitted to the engaging hole member 43. That is, with respect to the central portion of the carriage 40 in the x direction, one end side is supported by the shaft 42a with a predetermined distance from the side wall of the lower housing 60, and the other end side is supported by a predetermined distance from the side wall of the lower housing 60. The carriage 40 is stably supported by being vacated and supported by the rib 81c, and the carriage 40 is driven by a belt provided between them (center side) to prevent the carriage 40 from tilting during movement. I'm preventing it.

In the present embodiment, the carriage 40 is moved by using the rib 81c as a rail portion, but the rib 81c has a groove portion in the upper surface of the rib 81c, that is, in the center of the portion where the carriage 40 slides in contact with the carriage 40. According to this configuration, the sliding resistance with respect to the carriage 40 can be reduced. In addition, in order to further reduce the sliding resistance, grease or the like may be applied to the groove portion.

On the bottom surface side of the lower housing 60 of the carriage 40 in FIG. 9, a carriage lock member 65 is provided at the center of the lower housing 60 in the width direction (x direction) so as to penetrate the bottom surface side of the lower housing 60. There is. Since the image reading sensor 41 is arranged at the center in the width direction with respect to the lower housing 60, the carriage lock member 65 is arranged at the center in the width direction with respect to the image reading sensor 41 or the carriage 40. It will be.

According to this configuration, when the carriage lock member 65 prevents the carriage 40 from moving to the other end side, the maximum value of the moment (particularly the end portion in the width direction) applied to the carriage 40 can be reduced, and the carriage 40 can be reduced. And the load on the engagement hole member 43 can be reduced. In the present embodiment, the movement of the carriage 40 is guided by supporting the bottom surface of the carriage 40 with the shaft 42a and the rib 81c, and the carriage lock member 65 is provided on the center side of the two members. As a result, the movement of the carriage 40 can be stably regulated.

The carriage lock member 65 will be described in more detail. By locating the carriage lock member 65 closer to the rib 81c side than the shaft 42a, in addition to the above stable regulation, the movement of the carriage 40 in the width direction regarding the xy surface is restricted. , It can also be preferably performed with the engaging hole member 43. That is, in the present embodiment, when the carriage lock member 65 is used, the regulation in the z direction (negative direction) is performed by the shaft 42a and the rib 81c, but the regulation of movement in the xy plane is performed. Since the shaft 42a and the carriage lock member 65 are used, the movement in the xy plane is restricted by arranging the two members at positions provided with distances from the center to both ends in the width direction of the carriage 40. The moment applied to the carriage 40 can be reduced.

Further, the lower housing 60 is provided with a bent structure 66. The bending structure 66 fixes the connecting cable 64 at the portion of the cable bending portion 64c so as to undulate in the x direction. The connection cable 64 to which the cable bending portion 64c is wavy and elastic is directed toward the bottom surface side of the lower housing 60 by the fitting member 67 at the fitted portion 64d connected to the other end side of the cable bending portion 64c. It is fixed by pressing it down.

By doing so, when the carriage 40 moves in the y direction and the connection cable 64 moves in the cable accommodation space 82, it is possible to prevent the connection cable 64 from floating from the lower housing 60 in the z direction. , The stable connection cable 64 can be slid. However, it is not necessary that the fitting member 67 is always in contact with the fitting member 67, and the connection cable 64 may be in contact with the connecting cable 64 when the fitting member 67 is moved upward by a predetermined amount (in the positive direction of the z-axis).

Further, the operation unit board 54 is provided at a position corresponding to the bottom surface side of the operation unit 50, and the operation unit cable 56 connected to the operation unit connector 55 of the operation unit board 54 is located at the center of the lower housing 60. It is drawn around on the protruding portion 81 of the lower housing 60 toward, and is pulled out so as to penetrate the bottom surface side of the lower housing 60 at a position corresponding to the recess 62, and is connected to the control board 63. There is.

In this way, after the connection cable 64 is configured to be located on the bottom surface side of the lower housing 60, the carriage 40 is supported by the shaft 42a and the rib 81c and scanned in the y direction (secondary scanning direction). , The image reading operation of the document D by the image reading sensor 41 while preventing the carriage 40 from coming into contact with the connecting cable 64 by allowing the carriage 40 to pass above the connecting cable 64 (upper side in the vertical direction when the main body is mounted). Can be executed.

(Second Embodiment)
Hereinafter, the second embodiment of the present invention will be described, but since the basic configuration is the same as that of the first embodiment, the description will be omitted and only the different parts will be described.

In the present embodiment, an ADF (Auto Domainment Feeder) is provided on the upper part of the flatbed scanner 1. In this case, a known ADF can be used, and the structure thereof is not particularly limited.

In the first embodiment, the opening / closing lid 20 is opened / closed in the yz plane, but in the present embodiment, the opening / closing lid 20 may be opened / closed in the xz plane. That is, the ADF can be provided on one end side, and the ADF portion can be configured so as not to open and close even if the opening / closing lid 20 is opened / closed.

In that case, it is preferable that the operation unit 50 is provided on the outer surface of the housing 100, which is the end side of the housing 100 in any of the x directions and is the tip end side of the opening / closing lid 20. In that case, the operation unit board 54 is also provided at the same position, but the length of the operation unit cable 56 is shortened by arranging the operation unit 50 at the central portion in the y direction, that is, at a position facing the recess 62. can do.

Further, regarding the connection between the ADF and the control board 63, considering the arrangement of the connection cable 64 as described in the first embodiment while providing the ADF on one end side of the housing 100 as described above, the ADF and the control board 63 are connected. The connecting portion (cable) 200 to the control board is preferably provided at the position where the operating portion cable 56 is provided in the first embodiment. Specifically, the connecting portion 200 is inserted from the ADF into the housing 100. It is preferable to arrange the connecting portion 200 so that the upper surface of the protruding portion 81 is routed from there and penetrates the facing side of the lower housing 60 at a position corresponding to the recess 62. The connecting portion 200 may have a configuration inside the housing 100 configured to be connected to a connecting portion such as a connector provided on the ADF, and as an example, it has been described in the first embodiment. The operation unit cable 56 may be extended to the outside of the housing 100 and arranged.

Further, in each of the above-described embodiments, a flatbed scanner has been illustrated as an example of the image reading device, but the present invention is of course not limited to this, and a device provided with an image reading device (image reading means), for example. , The present invention may be applied to various processing devices such as a copying machine and a multifunction device.

1 Flatbed scanner 40 Carriage 41 Image reading sensor 62 Recess 63 Control board 64 Connection cable

Claims (7)

A housing with a document mounting table on the upper surface on which the document is placed,
An image reading means for reading a document placed on the document mounting table, and
A moving means for moving the image reading means in a sub-scanning direction orthogonal to the main scanning direction of the image reading means, and
A control board on which a control means for controlling the reading operation by the image reading means is mounted, and
A connecting means for connecting the control board and the image reading means is provided.
The housing has a recess formed from the bottom surface side toward the inside of the housing, and the control board is arranged in the recess.
The movable portion of the connecting means, including the portion that moves with the movement of the image reading means, is arranged in the accommodation space between the side wall inside the housing and the side wall inside the housing of the recess, and the moving means. An image reading device characterized in that the image reading means slides in the accommodation space as the image reading means moves. The image reading device according to claim 1, wherein the movable portion of the connecting means is arranged perpendicularly to the document mounting table in the accommodating space. The image reading device according to claim 2, wherein the recess is provided along a movable range of the movable portion of the connecting means in the sub-scanning direction. The image reading device according to any one of claims 1 to 3, wherein the recess is provided from one end to the other end of the housing in the sub-scanning direction. The connection means according to any one of claims 1 to 4, wherein the connecting means is fixed to the image reading means via a fixing means for arranging the movable portion in parallel with the document mounting table. Image reader. The image according to any one of claims 1 to 5, wherein a rail portion that slides when the image reading means moves is formed at an upper end portion of the recess inside the housing. Reader. One end of the connecting means is fixed to the image reading means, and the other end communicates from the inside of the housing into the recess and is connected to the control means.
The image reading device according to any one of claims 1 to 6, wherein the image reading means moves above the connecting means.

Images