JP2020142907A - Media transfer device - Google Patents

Abstract

To simplify a mechanism for expanding and contracting a mounting table.SOLUTION: An image reader 1 provided with a medium transport device includes a first shooter member 6, a second shooter member 7, and a third shooter member 8. The first shooter member 6 is formed with a first shooter mounting surface 11 on which a medium is mounted, and is rotatably supported by an image reader main body 2 around a rotation shaft 12. The second shooter member 7 is rotatably supported by the image reader main body 2 around a rotation shaft 14 different from the rotation shaft 12. The third shooter member 8 is formed with a second shooter mounting surface 15 on which the medium is mounted, and is supported by the second shooter member 7 so as to be rotatable around a rotation shaft 16 different from the rotation shaft 14, and is supported by the first shooter member 6 so that it can be translated.SELECTED DRAWING: Figure 1

Description

The technique of the present disclosure relates to a medium transfer device.

An image reader is known in which a mounting table on which a document is placed can be opened and closed so as to be stored in a compact space (see Patent Documents 1 and 2). Further known is an image reader in which an openable and closable mounting table is further stretchable so that a long document can be appropriately placed on the mounting table (see Patent Document 3). Further known is an image reader that automatically expands and contracts the mounting table when the mounting table opens and closes (see Patent Document 4).

Japanese Unexamined Patent Publication No. 2012-185208 Japanese Unexamined Patent Publication No. 2016-84233 Japanese Unexamined Patent Publication No. 2014-129160 International Publication No. 2018/131092

However, such an image reading device has a problem that it causes a problem caused by a complicated mechanism for expanding and contracting the mounting table in conjunction with opening and closing of the mounting table. Examples of the defect include an increase in the manufacturing cost of the image reader and damage to the mechanism such as gear skipping provided in the mechanism.

The technique disclosed is intended to provide a medium transfer device that simplifies the mechanism for expanding and contracting the mounting table.

In the medium transfer device according to the embodiment, the first member on which the first mounting surface on which the medium is mounted is formed and is rotatably supported by the main body about the first rotation axis, and the first rotation A second member rotatably supported by the main body around a second rotation axis different from the shaft and a second mounting surface on which the medium is placed are formed, and a third rotation different from the second rotation axis. It includes a third member that is rotatably supported by the second member about a shaft and is rotatably supported by the first member.

The disclosed medium transfer device can simplify the mechanism for expanding and contracting the mounting table.

FIG. 1 is a perspective view showing an image reading device provided with the medium transport device of the embodiment. FIG. 2 is a side sectional view showing the shooter and the separated portion. FIG. 3 is a perspective view showing an image reading device when the first shooter member is arranged at the shooter storage position. FIG. 4 is a side sectional view showing the shooter and the separated portion when the first shooter member is arranged at the shooter storage position. FIG. 5 is a perspective view showing an image reading device when the first shooter member is arranged at a position during rotation between the shooter deployment position and the shooter storage position. FIG. 6 is a side sectional view showing a shooter and a separated portion when the first shooter member is arranged at a position during rotation. FIG. 7 is a perspective view showing an image reading device provided with the medium transporting device of the second embodiment. FIG. 8 is a perspective view showing an image reading device when the first stacker member is arranged at the stacker storage position. FIG. 9 is a perspective view showing an image reading device when the first stacker member is arranged at a position during rotation between the stacker deployment position and the stacker storage position. FIG. 10 is a perspective view showing an image reading device provided with the medium transporting device of the third embodiment. FIG. 11 is a perspective view showing an image reading device when the first shooter member is arranged at the shooter storage position. FIG. 12 is a perspective view showing an image reading device provided with the medium transporting device of the fourth embodiment. FIG. 13 is a perspective view showing an image reading device when the first shooter member is arranged at the shooter deployment position. FIG. 14 is another perspective view showing an image reading device when the first shooter member is arranged at the shooter deployment position. FIG. 15 is a side view showing an image reading device when the first shooter member is arranged at the shooter storage position. FIG. 16 is a perspective view showing an image reading device when the first shooter member is arranged at the shooter storage position. FIG. 17 is another perspective view showing an image reading device when the first shooter member is arranged at the shooter storage position. FIG. 18 is a front view showing a shooter of an image reading device provided with the medium transporting device of the fifth embodiment. FIG. 19 is a front view showing a shooter when the third shooter member is arranged at a shortened position.

Hereinafter, the medium transfer device according to the embodiment disclosed in the present application will be described with reference to the drawings. The following description does not limit the technology of the present disclosure. Further, in the following description, the same reference numerals are given to the same components, and duplicate description will be omitted.

[Image reader]
The medium transfer device of the first embodiment is provided in the image reading device 1 as shown in FIG. FIG. 1 is a perspective view showing an image reading device 1 provided with the medium transporting device of the embodiment. The image reading device 1 includes an image reading device main body 2 and a shooter 3. The image reading device main body 2 is formed in a box shape and is placed on an installation surface on which the image reading device 1 is installed. The image reader main body 2 is formed with a paper feed port 5.

The shooter 3 includes a first shooter member 6, a second shooter member 7, and a third shooter member 8. The first shooter member 6 is formed in a plate shape, and a substantially flat first shooter mounting surface 11 is formed. The first shooter member 6 is rotatably supported by the image reader main body 2 about the rotation shaft 12 so as to be arranged at the shooter deployment position or the shooter storage position. The rotating shaft 12 is parallel to a plane along the installation surface of the image reading device 1. The first shooter mounting surface 11 faces diagonally upward as shown in FIG. 1 when the first shooter member 6 is arranged at the shooter deployment position. At this time, in the first shooter mounting surface 11, the end of the first shooter mounting surface 11 on the side closer to the rotating shaft 12 is the end of the first shooter mounting surface 11 on the side farther from the rotating shaft 12. Therefore, it is inclined so as to be closer to a plane along the installation surface of the image reading device 1. The first shooter mounting surface 11 is connected to the paper feed port 5 when the first shooter member 6 is arranged at the shooter deployment position and further when the first shooter member 6 is arranged at the shooter deployment position. Has been done.

The shooter 3 further includes a stopper (not shown). The stopper fixes the shooter 3 to the image reading device main body 2 so that the shooter 3 does not rotate due to its own weight when the first shooter member 6 is arranged at the shooter deployment position.

The second shooter member 7 is formed in a plate shape. The second shooter member 7 is rotatably supported by the image reader main body 2 about the rotation shaft 14. The rotating shaft 14 is parallel to the rotating shaft 12 and is arranged at a position different from the position where the rotating shaft 12 is arranged. The third shooter member 8 is formed in a plate shape, and a second shooter mounting surface 15 which is substantially flat is formed. The third shooter member 8 is arranged so that the second shooter mounting surface 15 is aligned with the plane along the first shooter mounting surface 11. The third shooter member 8 is rotatably supported by the second shooter member 7 about a rotation shaft 16. The rotating shaft 16 is parallel to the rotating shaft 14 and is arranged at a position different from the position where the rotating shaft 14 is arranged.

The image reading device 1 further includes a transport unit, a reading unit, and a scan button (not shown). As shown in FIG. 2, the transport unit includes a separation unit 17. FIG. 2 is a side sectional view showing the shooter 3 and the separation portion 17. The separation unit 17 is arranged in the vicinity of the paper feed port 5 inside the image reading device main body 2. The separating portion 17 is covered with the second shooter member 7 so that the separating portion 17 is not exposed to the outside when the first shooter member 6 is arranged at the shooter deployment position. The transport unit forms a transport path inside the image reading device main body 2. One end of the transport path is connected to the paper feed port 5, and the other end of the transport path is connected to a discharge port (not shown) formed in the image reading device main body 2. The reading unit is arranged in the vicinity of the transport path inside the image reading device main body 2. The scan button is provided on the image reading device main body 2.

When one medium is inserted from the paper feed port 5, the separation unit 17 comes into contact with one medium inserted from the paper feed port 5. When the scan button is pressed, the separation unit 17 feeds one medium in contact with the transport path into the transport path. When a plurality of media are inserted from the paper feed port 5, the separation unit 17 comes into contact with the plurality of media inserted from the paper feed port 5. When the scan button is pressed, the separation unit 17 separates one medium from the plurality of media in contact with the scan button, and feeds the separated medium to the transport path. The transport unit transports one medium fed by the separation unit 17 along the transport path and discharges it from the discharge port. The reading unit captures an image of one medium transported along the transport path.

The shooter 3 further includes a guide pin 18. The guide pin 18 is fixed to the third shooter member 8. A groove 19 is formed in the first shooter member 6. The groove 19 is formed along a straight line parallel to the expansion / contraction direction 20. The expansion / contraction direction 20 is parallel to the plane along the first shooter mounting surface 11 and perpendicular to the rotation axis 12. The guide pin 18 is fitted in the groove 19 and is movably supported by the first shooter member 6 along the groove 19. The third shooter member 8 is supported by the first shooter member 6 so as to be arranged in a stretched position or a shortened position by fitting the guide pin 18 into the groove 19 so as to be able to translate parallel to the expansion / contraction direction 20. ..

The position where the third shooter member 8 is arranged with respect to the first shooter member 6 is an image because the third shooter member 8 is supported by the first shooter member 6 and the second shooter member 7 in this way. It is determined according to the position where the first shooter member 6 is arranged with respect to the reading device main body 2. For example, the third shooter member 8 is arranged at the stretched position as shown in FIG. 2 when the first shooter member 6 is arranged at the shooter deployment position. The second shooter mounting surface 15 is arranged on the side farther from the rotation shaft 12 than the first shooter mounting surface 11 when the third shooter member 8 is arranged at the extended position. Further, the end 21 of the third shooter member 8 on the side far from the rotating shaft 12 is on the side farther from the rotating shaft 12 of the first shooter member 6 when the third shooter member 8 is arranged at the extension position. It is arranged on the side farther from the rotation shaft 12 than the end 22 of.

FIG. 3 is a perspective view showing an image reading device 1 when the first shooter member 6 is arranged at the shooter storage position. FIG. 4 is a side sectional view showing the shooter 3 and the separation portion 17 when the first shooter member 6 is arranged at the shooter storage position. The first shooter mounting surface 11 of the first shooter member 6 faces downward and faces the upper surface of the image reading device main body 2 when the first shooter member 6 is arranged at the shooter storage position. The paper feed port 5 and the separation unit 17 are provided on the second shooter member 7 so that the paper feed port 5 and the separation unit 17 are not exposed to the outside when the first shooter member 6 is arranged at the shooter storage position. It is covered.

The third shooter member 8 is arranged at the shortened position when the first shooter member 6 is arranged at the shooter storage position. The second shooter mounting surface 15 of the third shooter member 8 overlaps the first shooter mounting surface 11 of the first shooter member 6 when the third shooter member 8 is arranged at the shortened position. Further, the end 21 of the third shooter member 8 is arranged in the vicinity of the end 22 of the first shooter member 6 when the third shooter member 8 is arranged at the shortened position. That is, the shooter 3 is stretched by moving the first shooter member 6 from the shooter storage position to the shooter deployment position, and the shooter 3 is stretched by moving the first shooter member 6 from the shooter deployment position to the shooter storage position. ,Shorten.

FIG. 5 is a perspective view showing an image reading device 1 when the first shooter member 6 is arranged at a position during rotation between the shooter deployment position and the shooter storage position. FIG. 6 is a side sectional view showing the shooter 3 and the separating portion 17 when the first shooter member 6 is arranged at a position during rotation. The first shooter member 6 is arranged at a position during rotation when the first shooter member 6 moves between the shooter deployment position and the shooter storage position. The third shooter member 8 is arranged at a translational intermediate position between the shortened position and the extended position when the first shooter member 6 is arranged at the rotating intermediate position.

[Operation of image reader 1]
The user first rotates the first shooter member 6 toward the shooter deployment position, and arranges the first shooter member 6 at the shooter deployment position. In the third shooter member 8, when the third shooter member 8 is supported by the first shooter member 6 and the second shooter member 7, the first shooter member 6 rotates toward the shooter deployment position. Move toward the stretched position. The third shooter member 8 is arranged at the extended position when the first shooter member 6 is arranged at the shooter deployment position. The shooter 3 is stretched by arranging the third shooter member 8 at the stretched position.

When the user wants to read an image of one medium using the image reading device 1, the user places one medium on the shooter 3, and when he / she wants to read an image of a plurality of media using the image reading device 1. A plurality of media are placed on the shooter 3. By stretching the shooter 3, a medium larger than the first shooter mounting surface 11 of the first shooter member 6 can be stably mounted. Since the shooter 3 is tilted, the medium mounted on the shooter 3 moves toward the paper feed port 5 along the first shooter mounting surface 11 due to its own weight, and comes into contact with the separating portion 17. The user presses the scan button after placing the medium on the shooter 3.

The separation unit 17 delivers the one medium to the transport path when the scan button is pressed in the case where one medium is in contact with the separation unit 17. The separation unit 17 separates one medium from the plurality of media when the scan button is pressed in the case where a plurality of media are in contact with the separation unit 17, and the separated one medium is used as a transport path. Go out to. The transport unit transports one medium fed out to the transport path to the separation section 17 along the transport path. The reading unit captures an image of one medium transported along the transport path. The transport unit discharges the medium on which the image is captured.

When the image reading device 1 is stored, the user rotates the first shooter member 6 toward the shooter storage position and arranges the first shooter member 6 at the shooter storage position. The third shooter member 8 moves with respect to the first shooter member 6 toward the shortened position by rotating the first shooter member 6 toward the shooter storage position. The third shooter member 8 is arranged at the shortened position when the first shooter member 6 is arranged at the shooter storage position. The shooter 3 is shortened by arranging the third shooter member 8 at the shortened position. When the first shooter member 6 is arranged at the shooter storage position, the image reading device 1 becomes compact due to the shortening of the shooter 3, and can be stored in a smaller space.

[Effect of the medium transfer device of Example 1]
The medium transfer device of the first embodiment includes a first shooter member 6, a second shooter member 7, and a third shooter member 8. The first shooter member 6 has a first shooter mounting surface 11 on which a medium is mounted, and is rotatably supported by an image reading device main body 2 about a rotation shaft 12. The second shooter member 7 is rotatably supported by the image reader main body 2 about a rotation shaft 14 different from the rotation shaft 12. In the third shooter member 8, a second shooter mounting surface 15 on which the medium is mounted is formed, and the third shooter member 8 is rotatably supported by the second shooter member 7 about a rotation shaft 16 different from the rotation shaft 14, and can be translated. It is supported by the first shooter member 6.

At this time, the image reading device 1 provided with the medium transport device translates the third shooter member 8 with respect to the first shooter member 6 by rotating the first shooter member 6 with respect to the image reading device main body 2. be able to. The image reading device 1 can easily shorten the shooter 3 by rotating the first shooter member 6 when the medium is not placed on the shooter 3, and can be stored in a compact space. The image reader 1 can easily extend the shooter 3 by rotating the first shooter member 6 when the medium is mounted on the shooter 3, and a large medium is mounted on the shooter 3. be able to. Further, the image reading device 1 has a simple mechanism for converting the rotation of the first shooter member 6 with respect to the image reading device main body 2 into expansion and contraction of the shooter 3, which can prevent damage to the mechanism and reduce the manufacturing cost. ..

Further, the first shooter member 6 of the medium transfer device of the first embodiment is arranged at the shooter deployment position or the shooter storage position. The third shooter member 8 is arranged so that when the first shooter member 6 is arranged at the shooter deployment position, the second shooter mounting surface 15 is arranged on the side farther from the rotation axis 12 than the first shooter mounting surface 11. , Placed in the stretched position. The third shooter member 8 is arranged at a shortened position so that the second shooter mounting surface 15 overlaps the first shooter mounting surface 11 when the first shooter member 6 is arranged at the shooter storage position. At this time, in the image reading device 1, when the first shooter member 6 is arranged at the shooter deployment position, a large medium can be placed on the shooter 3. When the first shooter member 6 is arranged at the shooter storage position, the image reading device 1 can reduce the space occupied by the shooter 3 and can be stored in a compact space.

Further, the first shooter member 6 of the medium transfer device of the first embodiment is arranged so as to cover the separating portion 17. At this time, the image reading device 1 can prevent foreign matter from entering the transporting portion by covering the transporting portion with the second shooter member 7, and can prevent damage to the transporting portion. In the medium transport device, the back cover that covers the transport portion does not need to be provided separately from the second shooter member 7, and the number of parts can be reduced and the manufacturing cost can be reduced.

By the way, in the image reading device 1 provided with the medium transporting device of the first embodiment, the shooter 3 is formed to be openable and closable and expandable, but the medium discharged from the image reading device 1 is placed on the image reading device 1. The stacker may be formed so as to be openable and closable and expandable and contractible.

FIG. 7 is a perspective view showing an image reading device 31 provided with the medium transporting device of the second embodiment. The image reading device 31 includes an image reading device main body 32 and a stacker 33. The image reading device main body 32 is formed in a box shape and is placed on an installation surface on which the image reading device 31 is installed. The image reading device main body 32 is formed with a discharge port 35.

The stacker 33 includes a first stacker member 36, a second stacker member 37, and a third stacker member 38. The first stacker member 36 is formed in a plate shape, and a substantially flat first stacker mounting surface 41 is formed. The first stacker member 36 is rotatably supported by the image reader main body 32 about the rotation shaft 42 so as to be arranged at the shooter deployment position or the shooter storage position. The first stacker mounting surface 41 faces diagonally upward as shown in FIG. 7 when the first stacker member 36 is arranged at the shooter deployment position. The image of the first stacker mounting surface 41 is such that the end of the first stacker mounting surface 41 on the side closer to the rotating shaft 42 is closer to the end of the first stacker mounting surface 41 on the side farther from the rotating shaft 42. It is inclined with respect to the installation surface of the image reading device 31 so as to be close to a plane along the installation surface of the reading device 31. The first stacker mounting surface 41 is connected to the discharge port 35 when the first stacker member 36 is arranged at the stacker deployment position and further when the first stacker member 36 is arranged at the stacker deployment position. ing.

The stacker 33 further includes a stopper (not shown). The stopper fixes the stacker 33 to the image reading device main body 32 so that the stacker 33 does not rotate due to its own weight when the first stacker member 36 is arranged at the stacker deployment position.

The second stacker member 37 is formed in a plate shape. The second stacker member 37 is rotatably supported by the image reader main body 32 about the rotation shaft 44. The third stacker member 38 is formed in a plate shape, and a second stacker mounting surface 45 which is substantially flat is formed. The third stacker member 38 is arranged so that the second stacker mounting surface 45 is aligned with the plane along the first stacker mounting surface 41. The third stacker member 38 is rotatably supported by the second stacker member 37 about the rotation shaft 46. The third stacker member 38 is rotatably supported by the second stacker member 37 about the rotation shaft 46. The third stacker member 38 is supported by the first stacker member 36 so as to be arranged in a stretched position or a shortened position so as to be able to translate parallel to the expansion / contraction direction 47.

The position where the third stacker member 38 is arranged with respect to the first stacker member 36 is such that the third stacker member 38 is supported by the first stacker member 36 and the second stacker member 37, so that the image reading device main body 32 It is determined according to the position where the first stacker member 36 is arranged. For example, the third stacker member 38 is arranged at the stretched position as shown in FIG. 1 when the first stacker member 36 is arranged at the stacker deployment position. The second stacker mounting surface 45 is arranged on the side farther from the rotation shaft 42 than the first stacker mounting surface 41 when the third stacker member 38 is arranged at the extended position. Further, the end 48 of the third stacker member 38 on the side far from the rotating shaft 42 is on the side farther from the rotating shaft 42 of the first stacker member 36 when the third stacker member 38 is arranged at the extension position. It is arranged on the side farther from the rotation shaft 42 than the end 49 of.

FIG. 8 is a perspective view showing an image reading device 31 when the first stacker member 36 is arranged at the stacker storage position. When the first stacker member 36 is arranged at the stacker storage position, the first stacker mounting surface 41 of the first stacker member 36 faces diagonally downward and faces the upper surface of the image reading device main body 2. The discharge port 35 is covered with a second stacker member 37 so that the discharge port 35 is not exposed to the outside when the first stacker member 36 is arranged at the stacker storage position.

The third stacker member 38 is arranged at a shortened position when the first stacker member 36 is arranged at the stacker storage position. The second stacker mounting surface 45 of the third stacker member 38 overlaps the first stacker mounting surface 41 of the first stacker member 36 when the third stacker member 38 is arranged at a shortened position. Further, the end 48 of the third stacker member 38 is arranged in the vicinity of the end 49 of the first stacker member 36 when the third stacker member 38 is arranged at the shortened position. That is, the stacker 33 is stretched by moving the first stacker member 36 from the stacker storage position to the stacker deployment position, and the stacker 33 is stretched by moving the first stacker member 36 from the stacker deployment position to the stacker storage position. ,Shorten.

FIG. 9 is a perspective view showing an image reading device 31 when the first stacker member 36 is arranged at a position during rotation between the stacker deployment position and the stacker storage position. The first stacker member 36 is arranged at a position during rotation when the first stacker member 36 moves between the stacker deployment position and the stacker storage position. The third stacker member 38 is arranged at a translational intermediate position between the shortened position and the extended position when the first stacker member 36 is arranged at the rotating intermediate position.

[Operation of image reader 31]
When the user wants to read images of a plurality of media using the image reading device 31, the user first rotates the first stacker member 36 toward the stacker deployment position, and arranges the first stacker member 36 at the stacker deployment position. .. In the third stacker member 38, when the third stacker member 38 is supported by the first stacker member 36 and the second stacker member 37, the first stacker member 36 rotates toward the stacker deployment position. Move toward the stretched position. The third stacker member 38 is arranged at the extension position when the first stacker member 36 is arranged at the stacker deployment position. The stacker 33 is stretched by arranging the third stacker member 38 at the stretching position.

When the user wants to read an image of the medium using the image reading device 31, the user inserts the medium into the paper feed port. The image reading device 31 conveys the medium inserted in the paper feed port along the conveying path, and captures an image of one medium conveyed along the conveying path. The image reading device 31 discharges the medium on which the image is captured from the discharge port 35, and places the medium on which the image is captured on the stacker 33. Since the stacker 33 is stretched, the image reading device 31 can stably mount a medium larger than the first stacker mounting surface 41 of the first stacker member 36 on the stacker 33.

When the image reading device 31 is stored, the user rotates the first stacker member 36 toward the stacker storage position and arranges the first stacker member 36 at the stacker storage position. The third stacker member 38 moves with respect to the first stacker member 36 toward the shortened position by rotating the first stacker member 36 toward the stacker storage position. The third stacker member 38 is arranged at a shortened position when the first stacker member 36 is arranged at the stacker storage position. The stacker 33 is shortened by arranging the third stacker member 38 at the shortened position. When the first stacker member 36 is arranged at the stacker storage position, the image reading device 31 becomes compact due to the shortening of the stacker 33, and can be stored in a smaller space.

The image reading device 31 has a simple mechanism for converting the rotation of the first stacker member 36 into expansion and contraction of the stacker 33, and can prevent damage and reduce the manufacturing cost.

In the image reading device 51 provided with the medium transport device of the third embodiment, as shown in FIG. 10, the shooter 3 of the medium transport device of the first embodiment described above is replaced with another shooter 52. .. FIG. 10 is a perspective view showing an image reading device 51 provided with the medium transporting device of the third embodiment. In the shooter 52, the first shooter member 6 and the third shooter member 8 of the shooter 3 described above are replaced with other first shooter member 53 and the third shooter member 54, respectively, and the other parts are described above. Same as Shooter 3. Similar to the first shooter member 6 described above, the first shooter member 53 is centered on the rotation shaft 12 so that the first shooter mounting surface 11 is formed and arranged at the shooter deployment position or the shooter storage position. It is rotatably supported by the image reader main body 2. A first rail guide 55 is further formed on the first shooter member 53. A plurality of first sliding surfaces 56 are formed on the first rail guide 55. The plurality of first sliding surfaces 56 are formed so as to be along a plurality of planes parallel to the expansion / contraction direction 20, respectively.

Similar to the second shooter member 7 described above, the third shooter member 54 has a second shooter mounting surface 15 formed therein, and is rotatably supported by the second shooter member 7 about a rotation shaft 16. A second rail guide 57 is further formed on the third shooter member 54. The second rail guide 57 is formed with a plurality of second sliding surfaces 58. Each of the plurality of second sliding surfaces 58 is formed so as to be along a plurality of planes parallel to the expansion / contraction direction 20. The second rail guide 57 is fitted into the first rail guide 55 so that the plurality of second sliding surfaces 58 face each of the plurality of first sliding surfaces 56. The third shooter member 54 can be translated parallel to the expansion / contraction direction 20 so that the second rail guide 57 is fitted into the first rail guide 55 and is arranged at the extension position or the shortened position. Is supported by. The third shooter member 54 translates parallel to the first shooter member 53 in the expansion / contraction direction 20 by the plurality of second sliding surfaces 58 sliding on the plurality of first sliding surfaces 56.

Similar to the third shooter member 8 described above, the third shooter member 54 is arranged at the extended position when the first shooter member 53 is arranged at the shooter deployment position. Similar to the third shooter member 8 described above, the third shooter member 54 is arranged at the shortened position as shown in FIG. 11 when the first shooter member 53 is arranged at the shooter storage position. To. FIG. 11 is a perspective view showing an image reading device 51 when the first shooter member 53 is arranged at the shooter storage position.

The image reading device 51 operates in the same manner as the image reading device 1 described above, and has a simple mechanism for converting the rotation of the first shooter member 53 into expansion and contraction of the shooter 52, preventing damage to the mechanism and reducing manufacturing costs. It can be reduced. In the image reading device 51, the first rail guide 55 and the second rail guide 57 are formed, and the plurality of first sliding surfaces 56 and the plurality of second sliding surfaces 58 are in surface contact with each other. The three shooter member 54 is supported by the first shooter member 53. Since the third shooter member 54 is supported by the first shooter member 53 by surface contact in the image reading device 51, the strength of the support structure of the third shooter member 54 is stronger than that of the image reading device 1 described above. Can be improved and damage to the support structure can be prevented.

In the image reading device 61 provided with the medium transfer device of the fourth embodiment, as shown in FIG. 12, the shooter 3 of the medium transfer device of the first embodiment has been replaced with another shooter 62. .. FIG. 12 is a perspective view showing an image reading device 61 provided with the medium transporting device of the fourth embodiment. In the shooter 62, the second shooter member 7 of the shooter 3 described above is replaced with another second shooter member 63, and other parts are the same as the shooter 3 described above. The second shooter member 63 includes a fourth shooter member 64 and a fifth shooter member 65. The fourth shooter member 64 is formed in a plate shape and is rotatably supported by the image reader main body 2 about the rotation shaft 14. The fifth shooter member 65 is formed in a plate shape and is rotatably supported by the fourth shooter member 64 about a rotation shaft 66. The rotating shaft 66 is parallel to the rotating shaft 14 and is arranged at a position different from the position where the rotating shaft 14 is arranged. The shooter 62 further comprises a stopper (not shown). The stopper limits the range in which the fifth shooter member 65 rotates with respect to the fourth shooter member 64.

FIG. 13 is a perspective view showing an image reading device 61 when the first shooter member 6 is arranged at the shooter deployment position. FIG. 14 is another perspective view showing the image reading device 61 when the first shooter member 6 is arranged at the shooter deployment position. In the shooter 62, even when the second shooter member 63 is formed in this way, when the first shooter member 6 is arranged at the shooter deployment position, the third shooter member 8 is similar to the shooter 3 described above. It is placed in the stretched position.

FIG. 15 is a side view showing the image reading device 61 when the first shooter member 6 is arranged at the shooter storage position. FIG. 16 is a perspective view showing an image reading device 61 when the first shooter member 6 is arranged at the shooter storage position. FIG. 17 is another perspective view showing the image reading device 61 when the first shooter member 6 is arranged at the shooter storage position. In the shooter 62, even when the second shooter member 63 is formed in this way, when the first shooter member 6 is arranged at the shooter storage position, the third shooter member 8 is similar to the shooter 3 described above. Placed in a shortened position.

The image reading device 61 operates in the same manner as the image reading device 1 described above, and has a simple mechanism for converting the rotation of the first shooter member 53 into expansion and contraction of the shooter 62, preventing damage to the mechanism and reducing manufacturing costs. It can be reduced. By providing the fourth shooter member 64 and the fifth shooter member 65, the image reader 61 can prevent the second shooter member 63 from interfering with other parts of the image reader 61, as described above. As compared with the image reading device 1 of the above, damage to the mechanism can be further prevented.

As shown in FIG. 18, the shooter 71 of the image reading device provided with the medium transporting device of the fifth embodiment has an extension member 72 and an expansion / contraction mechanism 73 added to the shooter 3 described above, and other parts thereof. Is the same as the shooter 3 described above. FIG. 18 is a front view showing a shooter 71 of an image reading device provided with the medium transporting device of the fifth embodiment. The extension member 72 is formed in a plate shape, and a third shooter mounting surface 74 which is substantially flat is formed. The extension member 72 is arranged so that the third shooter mounting surface 74 is aligned with the plane along the second shooter mounting surface 15, and can be translated parallel to the expansion / contraction direction 20 so as to be arranged at the extending position or the shortened position. Is supported by the third shooter member 8.

The expansion / contraction mechanism 73 includes a plurality of gears 75, a first rack 76, and a second rack 77. The plurality of gears 75 mesh with each other and are rotatably supported by the third shooter member 8. The first rack 76 is arranged along a straight line parallel to the expansion / contraction direction 20, and is fixed to the first shooter member 6. The first rack 76 meshes with one of the plurality of gears 75, the gear 78. The second rack 77 is arranged along a straight line parallel to the expansion / contraction direction 20 and is fixed to the extension member 72. The second rack 77 meshes with one of the plurality of gears 75, the gear 79. The expansion / contraction mechanism 73 is formed so that the extension member 72 is arranged at the extension position when the third shooter member 8 is arranged at the extension position.

The plurality of gears 75 rotate by moving the third shooter member 8 with respect to the first shooter member 6 due to the gear 78 meshing with the first rack 76. The extension member 72 translates parallel to the first shooter member 6 in the expansion / contraction direction 20 by rotating the plurality of gears 75 due to the gear 79 meshing with the second rack 77. FIG. 19 is a front view showing the shooter 71 when the third shooter member 8 is arranged at the shortened position. The extension member 72 is arranged at the shortened position when the third shooter member 8 is arranged at the shortened position. That is, the expansion / contraction mechanism 73 is formed so that the extension member 72 is arranged at the shortened position when the third shooter member 8 is arranged at the shortened position.

The image reading device provided with the medium transporting device of the fifth embodiment operates in the same manner as the image reading device 1 described above, and has a simple mechanism for converting the rotation of the first shooter member 6 into expansion and contraction of the shooter 71. Damage to the mechanism can be prevented and manufacturing costs can be reduced. By providing the extension member 72 and the expansion / contraction mechanism 73, the shooter 71 can be stretched longer than the image reading device 1 described above, and a larger medium can be stably placed. it can.

By the way, the above-mentioned medium transfer device is used for an image reading device, but may be used for other devices. An example of the device is a printer. For example, in a medium transport device, when used in a printer, a reading unit is replaced with a printing unit that prints a figure on the medium. Even when the medium transfer device is used in a device different from the image reading device, the mechanism for expanding and contracting the mounting table on which the medium is placed can be simplified, the mechanism can be prevented from being damaged, and the manufacturing cost can be reduced. be able to.

Although the examples have been described above, the examples are not limited by the contents described above. Further, the above-mentioned components include those that can be easily assumed by those skilled in the art, those that are substantially the same, that is, those having a so-called equal range. Furthermore, the components described above can be combined as appropriate. Furthermore, at least one of the various omissions, substitutions and changes of the components can be made without departing from the gist of the embodiment.

1: Image reading device 2: Image reading device main body 3: Shooter 6: First shooter member 7: Second shooter member 8: Third shooter member 11: First shooter mounting surface 12: Rotating shaft 14: Rotating shaft 15: Second shooter mounting surface 16: Rotating shaft 17: Separation part 31: Image reading device 32: Image reading device main body 33: Stacker 36: First stacker member 37: Second stacker member 38: Third stacker member 41: First Stacker mounting surface 42: Rotating shaft 44: Rotating shaft 45: Second stacker mounting surface 46: Rotating shaft 51: Image reader 52: Shooter 53: First shooter member 54: Third shooter member 55: First rail guide 56: Multiple first sliding surfaces 57: Second rail guide 58: Multiple second sliding surfaces 61: Image reader 62: Shooter 63: Second shooter member 64: Fourth shooter member 65: Fifth shooter member 66: Rotating shaft 71: Shooter 72: Extension member 73: Telescopic mechanism 74: Third shooter mounting surface

Claims (7)

A first member on which a first mounting surface on which the medium is mounted is formed and is rotatably supported by the main body about the first rotation axis,
A second member rotatably supported by the main body about a second rotation axis different from the first rotation axis,
A second mounting surface on which the medium is mounted is formed, is rotatably supported by the second member about a third rotation axis different from the second rotation axis, and is rotatably supported by the first member. A medium transfer device including a third member to be formed. The first member is arranged at the unfolding position or the retracting position.
The third member is
When the first member is arranged at the deployed position, the second mounting surface is arranged so as to be arranged on the side farther from the first rotation axis from the first mounting surface.
The medium transfer device according to claim 1, wherein the second mounting surface is arranged so as to overlap the first mounting surface when the first member is arranged at the storage position. The medium transport device according to claim 1 or 2, further comprising a separating portion for feeding the medium mounted on the first mounting surface and the second mounting surface into a transport path. The first member is formed with a plurality of first sliding surfaces parallel to the first member in the translation direction in which the third member translates.
The third member is claimed from claim 1 in which a plurality of second sliding surfaces are formed, each of which slides on the plurality of first sliding surfaces when the third member translates with respect to the first member. Item 3. The medium transfer device according to any one of items 3. The medium transfer device according to any one of claims 1 to 3, wherein the second member is arranged so as to cover a transfer unit that conveys the medium. The second member is
A fourth member rotatably supported by the main body about the second rotation axis,
The second rotating shaft and the third rotating shaft have a fifth member rotatably supported by the fourth member about a different fourth rotating shaft.
The medium transfer device according to any one of claims 1 to 5, wherein the third member is rotatably supported by the fifth member about the third rotation axis. A third mounting surface on which the medium is mounted is formed, and an extension member that is translationally supported by the third member and
Any one of claims 1 to 6, further comprising a mechanism for translating the extension member with respect to the third member in conjunction with the translation of the third member with respect to the first member. The medium transport device according to.

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