Medium receiving device, medium feed device, recording apparatus and operation device

Abstract

To provide a medium receiving device, medium feed device, recording apparatus and operation device allowed to relieve user's burden in displacing a cassette between a reception position and a projection position.SOLUTION: A medium receiving device 19 comprises an apparatus body 20, a cassette 21 that is mounted on the apparatus body 20 and for receiving a medium, and a displacement unit that displaces the cassette 21 between a reception position where the cassette 21 is received in the apparatus body 20 and a projection position where the cassette 21 projects from the apparatus body 20. The displacement unit has a rack 51 that is provided in the cassette 21 and extends along a displacement direction to displace the cassette 21 and a transmission gear 52 that is provided in the apparatus body 20 and in mesh with the rack 51. The medium receiving device 19 is constructed to give a rotation force to the transmission gear 52 through an operation unit 48 from external of the apparatus body 20.SELECTED DRAWING: Figure 9

Description

[Technical Field]

[0001] The present invention relates to a medium storage device, a medium feeding device, a recording device, and an operating device. [Background technology]

[0002] Patent Document 1 describes an image forming apparatus including a housing, a paper feed cassette, and a paper cassette. The paper feed cassette is configured to be movable between a storage position where it is housed within the housing and a pulled-out position where it is pulled out of the housing. The paper cassette is detachably disposed within the paper feed cassette.

[0003] The paper cassette has a paper tray for storing paper, a handle connected to the paper tray, and a biasing member for biasing the handle. The handle is configured to be rotatable between a lying position when the paper cassette is in the storage position and an upright position when the paper cassette is in the extended position. The biasing member biases the handle so that it assumes the upright position. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2021-138508 Summary of the Invention [Problem to be solved by the invention]

[0005] In the image forming apparatus described above, when the paper feed cassette is pulled out from the storage position to the pull-out position, the biasing force of the biasing member causes the handle to change from a lying position to an upright position, making the handle easier to grip and reducing the burden when removing the paper feed cassette from the paper feed cassette.

[0006] However, in the image forming apparatus described above, in order to set the handle in the upright position, it is necessary to pull out the paper feed cassette from the housing to the pull-out position. There is room for improvement in reducing the burden when pulling out the paper feed cassette.

[0007] The above-described problem is not limited to a configuration that includes a paper feed cassette and a paper cassette, but can also occur in a configuration that includes a paper feed cassette but does not include a paper cassette. [Means for solving the problem]

[0008] A media storage device that solves the above problem comprises a device main body, a cassette attached to the device main body and capable of storing media, and a displacement unit that displaces the cassette between a storage position where the cassette is stored in the device main body and a protruding position where the cassette protrudes from the device main body, the displacement unit having a rack provided on the cassette and extending along the displacement direction in which the cassette is displaced, and a gear unit provided on the device main body and engaging with the rack, and configured so that a rotational force can be applied to the gear unit from outside the device main body via an operating unit.

[0009] A medium feeding device that solves the above problem includes a medium storage device having the above configuration and a feeding section that feeds a medium from the medium storage device. A recording device that solves the above problem includes a medium feeding device having the above configuration, and a recording section that records on the medium fed by the medium feeding device.

[0010] The operating device that solves the above problem is connected externally to the device body of a media storage device having a rack provided on a cassette that can store media in accordance with the displacement direction in which the cassette is displaced relative to the device body, and a gear portion that is provided on the device body and engages with the rack, and is configured to be able to apply a rotational force to the gear portion by being operated while connected to the device body. [Brief explanation of the drawings]

[0011] [Figure 1]FIG. 1 is a perspective view showing a recording apparatus according to an embodiment. [Figure 2] FIG. 2 is a cross-sectional view showing the internal configuration of the printer unit of the recording device. [Figure 3] FIG. 3 is a side cross-sectional view showing the main part of the cassette. [Figure 4] FIG. 4 is a schematic side view showing the main part of the cassette in the locked state. [Figure 5] FIG. 5 is a schematic side view showing the main part of the cassette in the unlocked state. [Figure 6] FIG. 6 is a perspective view showing a state in which the first cassette in FIG. 1 has been displaced to a protruding position. [Figure 7] FIG. 7 is a side view of the operation unit. [Figure 8] FIG. 8 is a schematic plan view showing the main parts of the medium storage device. [Figure 9] FIG. 9 is a schematic side view of FIG. [Figure 10] FIG. 10 is a schematic side view showing a state when the cassette is displaced toward the protruding position. [Figure 11] FIG. 11 is a schematic side view showing a state when the cassette is displaced toward the storage position. [Figure 12] FIG. 12 is a schematic side view showing the state when the cassette is displaced to the storage position. [Figure 13] FIG. 13 is a side view of the operation section of the modified example. [Figure 14] FIG. 14 is a schematic plan view showing a main part of a medium storage device according to a modified example. [Figure 15] FIG. 15 is a side view of the connected gear of FIG. [Figure 16] FIG. 16 is a schematic front view showing a main part of a medium storage device according to a modified example. [Figure 17] 17 is a side view of the support member of FIG. 16. FIG. [Figure 18] FIG. 18 is a side view of the connected gear of FIG. [Figure 19] FIG. 19 is a schematic front view showing the main part of a medium storage device according to a modified example. [Figure 20] 20 is a side view of the support member of FIG. 19. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0012] <Recording Device 11> An embodiment of a recording device will be described below with reference to the drawings. In the drawings, the recording device 11 is assumed to be placed on a horizontal installation surface. The axis perpendicular to the installation surface of the recording device 11 is defined as the Z axis, and the two axes perpendicular to the Z axis are defined as the X axis and the Y axis, respectively. The directions parallel to the X axis, Y axis, and Z axis are defined as the X axis direction, Y axis direction, and Z axis direction, respectively.

[0013] 1 and 2, the recording device 11 is, for example, a multifunction peripheral. The recording device 11 includes a printer unit 12, an image reading unit 13 disposed above the printer unit 12, and an automatic document feeder unit 14 disposed above the image reading unit 13. The image reading unit 13 reads images of documents. The automatic document feeder unit 14 feeds documents one by one in order to the image reading unit 13. The recording device 11 includes an operation panel 15 for performing various operations on the recording device 11.

[0014] <Printer Unit 12> 1 and 2, the printer unit 12 has, for example, a substantially rectangular parallelepiped shape. The printer unit 12 has a front surface 12A, a first side surface 12B, a second side surface 12C, and a rear surface 12D. A stacker unit 16 is disposed at the bottom of a recess between the printer unit 12 and the image reading unit 13. The printer unit 12 includes a recording unit 17 disposed below the stacker unit 16 and a medium feeding device 18 disposed below the recording unit 17.

[0015] The medium feeding device 18 includes a medium storage device 19 and a feeding section, which will be described later. The medium storage device 19 includes a device main body 20 that forms a portion of the printer unit 12 that is lower than a portion slightly above the center in the Z axis direction, and a plurality of cassettes 21 that are rectangular boxes with bottoms and are attached to the device main body 20 so as to be insertable and removable from the front face 12A side and that can store media M such as paper. As an example, the medium storage device 19 includes a plurality of cassettes 21 (four in this embodiment) lined up in the Z axis direction, which is the vertical direction.

[0016] The four cassettes 21 store media M, such as paper, of different sizes. The four cassettes 21 are, from top to bottom, a first cassette 22, an upper intermediate cassette 23, a lower intermediate cassette 24, and a second cassette 25. The first cassette 22 is the cassette 21 located at the top of the four cassettes 21 attached to the device body 20 in a line in the Z-axis direction. The second cassette 25 is the cassette 21 located at the bottom of the four cassettes 21 attached to the device body 20 in a line in the Z-axis direction.

[0017] A feed roller 26 is disposed at an upper position on the end of each cassette 21 on the first side surface 12B side in the Y-axis direction. A plate-shaped hopper 27 on which a plurality of media M are placed in a stack is provided in a tiltable manner within the cassette 21. The hopper 27 is configured to lift the media M and press them against the feed roller 26 by tilting.

[0018] The printer unit 12 has a transport path 28 that runs from each cassette 21 in the medium storage device 19 to the stacker unit 16 via the recording unit 17. The transport path 28 is a path along which the medium M is transported. The transport path 28 includes a common path 28A along which the medium M fed from the four cassettes 21 passes, and individual paths 28B that run from each of the four cassettes 21 to the common path 28A. In other words, the four individual paths 28B are each connected to the common path 28A.

[0019] Each feed roller 26 is, for example, a pickup roller. Each feed roller 26 sends the uppermost medium M from the stack of media in the cassette 21 to an individual path 28B. A separation roller pair 29 is arranged in each individual path 28B to separate the medium M sent to the individual path 28B by the feed roller 26 into individual sheets.

[0020] At a position on the common path 28A upstream of the recording unit 17, a plurality of transport roller pairs 30 are arranged at appropriate intervals to transport the medium M that has been separated into one sheet and sent out from the individual path 28B by the separation roller pair 29 toward the recording unit 17. In the present embodiment, as an example, the feed roller 26, the separation roller pair 29, and the transport roller pair 30 form the feed unit that feeds the medium M from each cassette 21 toward the recording unit 17 along the individual path 28B and the common path 28A.

[0021] The recording unit 17 has a recording head 31 that faces the transport path 28. A belt transport mechanism 32 that supports the medium M transported along the transport path 28 while transporting it at a constant speed is disposed at a position facing the recording head 31 across the transport path 28. The belt transport mechanism 32 has an endless transport belt 33 that is wound around a pair of rollers. The recording head 31 records on the medium M by ejecting a liquid such as ink toward the medium M that is transported at a constant speed by the belt transport mechanism 32.

[0022] At a position downstream of the recording unit 17 on the conveying path 28, a plurality of discharge roller pairs 34 are arranged at appropriate intervals to convey the medium M after recording by the recording unit 17 and discharge it to the stacker unit 16. The recorded media M that are sequentially discharged to the stacker unit 16 are stacked on the stacker unit 16.

[0023] <Cassette 21> 1 and 3, a handhold recess 35 is provided in the approximate center of the end of cassette 21 of medium storage device 19 on the front face 12A side in the X-axis direction, for inserting a hand and holding when withdrawing cassette 21 from device main body 20. Cassette 21 is configured to be displaceable in the X-axis direction between a storage position (position shown in FIG. 1) where cassette 21 is stored in device main body 20 and a protruding position (position shown by first cassette 22 in FIG. 6) where cassette 21 is withdrawn from device main body 20 and protrudes.

[0024] The handle recess 35 has an opening 36 that opens toward the front surface 12A in the X-axis direction. The width of the inside of the handle recess 35 in the Z-axis direction is wider than the width of the opening 36 in the Z-axis direction. A lock shaft 37 extending in the Y-axis direction is rotatably provided in the cassette 21. The lock shaft 37 extends so as to pass near the inside of an upper wall portion 38 of the opening 36 in the cassette 21.

[0025] As shown in Figures 4 and 8, both ends of the lock shaft 37 penetrate both side walls of the cassette 21 in the Y-axis direction and protrude outward. An engaging portion 39, for example, in the shape of a hook, is provided at the end of the lock shaft 37 on the first side surface 12B side (see Figure 1; the front side in Figure 4, and the right side in Figure 8). The engaging portion 39 has a generally L-shaped tip bent downward. That is, the engaging portion 39 has a hook portion 40 at the tip.

[0026] The tip surface of the engaging portion 39 forms an inclined surface 41 that is inclined upward toward the rear surface 12D side in the X-axis direction (see FIG. 1; right side in FIG. 4, upper side in FIG. 8). The engaging portion 39 has a base end fixed to the locking shaft 37 so as to rotate integrally with the locking shaft 37. A stopper 42 is provided above the engaging portion 39 on the outer surface of the side wall of the cassette 21 on the engaging portion 39 side in the Y-axis direction so as to protrude outward in the Y-axis direction.

[0027] The stopper 42 functions as an upper limit to the rotation position of the engaging portion 39 when the engaging portion 39 rotates upward around the lock shaft 37. In other words, the stopper 42 restricts the rotation of the engaging portion 39 by abutting against the engaging portion 39 when the engaging portion 39 rotates excessively upward around the lock shaft 37.

[0028] 4 and 5, the device main body 20 (see FIG. 1) has, for example, a block-shaped engaged portion 43 that restricts displacement of the cassette 21 in the X-axis direction by engaging with the engaging portion 39 when the cassette 21 is in the storage position. That is, when the cassette 21 is in the storage position, the hook portion 40 of the engaging portion 39 engages with the surface of the engaged portion 43 on the rear surface 12D side in the X-axis direction (see FIG. 1; right side in FIGS. 4 and 5), thereby establishing a locked state in which displacement of the cassette 21 in the X-axis direction toward the protruding position side (left side in FIGS. 4 and 5) is restricted.

[0029] When the cassette 21 is displaced from the protruding position to the storage position, the inclined surface 41 of the engaging portion 39 slides against the engaged portion 43, causing the engaging portion 39 to rotate so that the hook portion 40 of the engaging portion 39 rides up on the engaged portion 43. After that, when the hook portion 40 rides up over the engaged portion 43, the engaging portion 39 rotates downward due to its own weight, and the hook portion 40 of the engaging portion 39 enters a locked state in which it engages with the surface of the engaged portion 43 on the rear surface 12D side in the X-axis direction (see FIG. 1; right side in FIGS. 4 and 5).

[0030] 1, 3, and 4, an L-shaped release lever 45 is supported via a spring 44 on the inner surface of the upper wall 38 of the opening 36 of the recessed handle 35 in the cassette 21. The spring 44 is arranged so as to expand and contract in the X-axis direction. The release lever 45 is provided with a lever protrusion 46 that protrudes downward. A shaft protrusion 47 that protrudes upward is provided at the top of the lock shaft 37 at a position corresponding to the lever protrusion 46.

[0031] The shaft protrusion 47 contacts the lever protrusion 46 from the front surface 12A side in the X-axis direction. When a hand is inserted into the handle recess 35 through the opening 36 and the release lever 45 is pushed toward the front surface 12A in the X-axis direction against the biasing force of the spring 44, the lever protrusion 46 pushes the shaft protrusion 47 toward the front surface 12A. Then, in FIG. 4 , the engagement portion 39 rotates counterclockwise together with the lock shaft 37, with the lock shaft 37 as the rotation center.

[0032] 4 in which the engaging portions 39 are engaged with the engaged portions 43, to the unlocked state shown in Fig. 5 in which the engaging portions 39 are no longer engaged with the engaged portions 43. In the unlocked state, the cassette 21 can be displaced from the housed position to the extended position.

[0033] <Detailed configuration of the medium storage device 19> 1 and 6, four insertion openings 49 into which an operation unit 48 serving as an operation device provided in the medium storage device 19 is inserted are formed at positions on the second side 12C of the printer unit 12 corresponding to the ends of the four cassettes 21 on the front face 12A side. That is, the four insertion openings 49 are provided in the device main body 20. A storage recess 50 serving as an example of a storage unit that houses and keeps the operation unit 48 is provided at a position above the first cassette 22 (cassette 21) on the second side 12C of the printer unit 12. That is, the storage recess 50 is provided in the upper part of the device main body 20.

[0034] 6 and 8, a linear toothed rack 51 is provided on the outer surface of the side wall of cassette 21 on the second side surface 12C side in the Y-axis direction. The teeth of rack 51 face upward. Rack 51 extends over the entire X-axis direction of cassette 21, along the X-axis direction, which is the displacement direction of cassette 21 between the retracted position and the extended position.

[0035] 8 and 9, a transmission gear 52, which is an example of a gear unit that meshes with a rack 51, is rotatably provided in the device main body 20. When a rotational force is applied to the transmission gear 52, the transmission gear 52 rotates about an axis extending in the Y-axis direction. In the present embodiment, as an example, the rack 51 and the transmission gear 52 form a displacement unit that displaces the cassette 21 in the X-axis direction between a storage position where the cassette 21 is stored in the device main body 20 and a protruding position where the cassette 21 is pulled out from the device main body 20 and protrudes.

[0036] A lock gear 53 is provided on the end of the lock shaft 37 opposite the engagement portion 39 side so as to be rotatable integrally with the lock shaft 37. The lock gear 53 is located above the rack 51. A torque limiter is built into the lock gear 53. The torque limiter causes the lock gear 53 to rotate freely relative to the lock shaft 37 when a rotational force of a predetermined magnitude or greater is applied to the lock gear 53. In other words, when a rotational force of a predetermined magnitude or greater is applied to the lock gear 53, the lock gear 53 does not transmit the rotational force to the lock shaft 37.

[0037] A pair of idle gears 55 are arranged side by side in the Y-axis direction at a position between the transmission gear 52 and the lock gear 53 when viewed from above in the Z-axis direction, and the centers of the idle gears 55 are connected to each other by a connecting shaft 54 ​​that extends in the Y-axis direction. One of the pair of idle gears 55 is a first idle gear 56, and the other is a second idle gear 57. The first idle gear 56 and the second idle gear 57 are configured to be rotatable together via the connecting shaft 54.

[0038] The first idle gear 56 is rotatably supported by the device body 20. The second idle gear 57 is in mesh with the lock gear 53 above the rack 51. A one-way clutch is built into the first idle gear 56. When the first idle gear 56 is rotated in one direction, the one-way clutch transmits the rotation to the second idle gear 57 via the connecting shaft 54, but when the first idle gear 56 is rotated in the opposite direction, the one-way clutch does not transmit the rotation to the second idle gear 57 via the connecting shaft 54.

[0039] That is, when the first idle gear 56 is rotated in the reverse direction, it rotates freely relative to the connecting shaft 54. In this embodiment, the first idle gear 56 transmits counterclockwise rotation to the second idle gear 57 via the connecting shaft 54 ​​in FIG. 9, but does not transmit clockwise rotation to the second idle gear 57 via the connecting shaft 54.

[0040] A bearing portion 58 is provided above the transmission gear 52 in the device body 20 . 6 and 7, the operating unit 48 has a lever portion 59 that is, for example, a rectangular prism-shaped lever portion 59 extending linearly, and a connection portion 60 that is provided at the tip of the lever portion 59 and connected to the device body 20. The base end of the lever portion 59 that is located opposite the connection portion 60 side is a free end 61. The length from the connection portion 60 to the free end 61 of the operating unit 48 is longer than the distance between the first cassette 22 and the second cassette 25 in the Z-axis direction.

[0041] In this case, the distance between the first cassette 22 and the second cassette 25 may be the distance between any of their locations, or may be the distance between specific locations (for example, racks 51) between them.

[0042] As shown in Figures 7 and 8, the connection part 60 has a cylindrical main body part 62 to which the tip part of the lever part 59 is fixed, a connection gear 63 as an example of a ratchet part provided on one surface of the main body part 62, and a switching lever 64 as an example of a switching part provided on the other surface of the main body part 62.

[0043] The connecting gear 63 has a built-in ratchet mechanism that restricts rotation of the connecting gear 63 in either one direction or the opposite direction. By operating the switching lever 64, the direction in which the rotation of the connecting gear 63 is restricted by the ratchet mechanism can be switched between one direction and the opposite direction. A shaft 65 protrudes from the center of the connecting gear 63 and is rotatably connected to the bearing 58 of the device main body 20.

[0044] 8 and 9, the operation unit 48 is attached to the device body 20 by inserting the connection gear 63 into the insertion opening 49 of the device body 20, and is detached from the device body 20 by pulling the connection gear 63 out of the insertion opening 49 of the device body 20. Therefore, the operation unit 48 is configured to be detachable from the device body 20.

[0045] When the connecting gear 63 of the operating unit 48 is inserted into the insertion port 49 of the device body 20 to mount the operating unit 48 on the device body 20, the shaft portion 65 is connected to the bearing portion 58, and the connecting gear 63 is brought into mesh with the first idle gear 56 and the transmission gear 52. In this state, when the free end 61 of the lever portion 59 is rotated back and forth along the X-axis direction, the action of the ratchet mechanism causes the rotational force from the connecting gear 63 in only one direction, or in only the opposite direction, to be transmitted to the first idle gear 56 and the transmission gear 52, respectively.

[0046] In other words, by engaging and connecting the connecting gear 63 of the operating unit 48 with the first idle gear 56 and the transmission gear 52 from outside the device main body 20, it is possible to apply a rotational force to the first idle gear 56 and the transmission gear 52 via the operating unit 48.

[0047] In this embodiment, for example, when the switching lever 64 is tilted to the right as shown in Fig. 9, counterclockwise rotation of the connecting gear 63 is restricted and clockwise rotation is permitted in Fig. 9. On the other hand, when the switching lever 64 is tilted to the left as shown in Fig. 11, clockwise rotation of the connecting gear 63 is restricted and counterclockwise rotation is permitted in Fig. 11.

[0048] In other words, the connecting gear 63 transmits only the rotational force in either one direction or the reverse direction, which is generated by operating the operating unit 48, to the first idle gear 56 and the transmission gear 52. The switching lever 64 switches the direction of the rotational force that the connecting gear 63 transmits to the first idle gear 56 and the transmission gear 52, between one direction and the reverse direction.

[0049] <Operation of the embodiment> Next, the operation when a selected one of the plurality of cassettes 21 is displaced between the storage position and the protruding position using the operation unit 48 will be described.

[0050] When a selected cassette 21 is to be displaced from the storage position to the protruding position, first, the switching lever 64 of the operation unit 48 is tilted to the right in Fig. 9. Next, as shown in Fig. 8, the connection gear 63 of the operation unit 48 is inserted into the insertion opening 49 corresponding to that cassette 21, thereby attaching the operation unit 48 to the device main body 20. Then, as shown in Figs. 8 and 9, the shaft portion 65 is connected to the bearing portion 58, and the connection gear 63 is brought into mesh with the first idle gear 56 and the transmission gear 52, respectively.

[0051] In this state, when the free end 61 of the lever portion 59 is rotated back and forth along the X-axis direction, the connecting gear 63 rotates clockwise in FIG. 9 due to the action of the ratchet mechanism. As a result, the first idle gear 56 and the transmission gear 52 each rotate counterclockwise in FIG. 9. At this time, in conjunction with the rotation of the first idle gear 56, the second idle gear 57 also rotates counterclockwise in FIG. 9. Furthermore, at this time, in conjunction with the rotation of the second idle gear 57, the lock gear 53 rotates clockwise in FIG. 9.

[0052] As the lock gear 53 rotates, the engaging portion 39 is disengaged from the engaged portion 43. That is, the engaging portion 39 and the engaged portion 43 are disengaged by operating the operating portion 48. This puts the cassette 21 in an unlocked state. When the rotational force of the transmission gear 52 is transmitted to the rack 51, the cassette 21 moves from the housed position toward the extended position, as shown in FIG. 10.

[0053] Then, the lock gear 53 separates from the second idle gear 57, and the meshing state between the second idle gear 57 and the lock gear 53 is released. When the cassette 21 reaches the protruding position, the operation of the operating unit 48 is stopped, and the medium M in the cassette 21 is replenished, for example.

[0054] Thereafter, to return the cassette 21 from the protruding position to the storage position, first, the switching lever 64 of the operation unit 48 is tilted to the left in Fig. 11. Subsequently, as shown in Fig. 11, when the free end 61 of the lever unit 59 is rotated back and forth along the X-axis direction, the ratchet mechanism works to rotate the connecting gear 63 counterclockwise in Fig. 11.

[0055] 11. At this time, the rotation of the connecting gear 63 causes the first idle gear 56 and the connecting gear 63 to rotate clockwise in FIG. 11. At this time, the rotation of the first idle gear 56 is not transmitted to the second idle gear 57, so the second idle gear 57 does not rotate. Then, when the rotational force of the transmission gear 52 is transmitted to the rack 51, the cassette 21 moves from the extended position toward the retracted position, as shown in FIG.

[0056] 12, when cassette 21 reaches the storage position, operation of operating unit 48 is stopped. At this time, lock gear 53 again meshes with second idle gear 57. Furthermore, at this time, engaging portion 39 and engaged portion 43 again engage with each other, so cassette 21 is locked at the storage position.

[0057] In this way, in the medium storage device 19, by applying a rotational force to the transmission gear 52 via the operation unit 48 from outside the device main body 20, the cassette 21 can be displaced between the storage position and the protruding position via the rack 51. Therefore, the user can displace the cassette 21 between the storage position and the protruding position without directly touching the cassette 21. In this case, the operation unit 48 can be operated from a side of the medium storage device 19 from which the cassette 21 is not protruding.

[0058] Therefore, the cassette 21 can be displaced between the storage position and the extended position without interfering with the cassette 21. This reduces the burden on the user, particularly a wheelchair user, when displacing the cassette 21 between the storage position and the extended position.

[0059] <Effects of the embodiment> Next, the effects of the above embodiment will be described. (1) The medium storage device 19 includes a device main body 20, a cassette 21 attached to the device main body 20 and capable of storing a medium M, and a displacement unit that displaces the cassette 21 between a storage position where the cassette 21 is stored in the device main body 20 and a protruding position where the cassette 21 protrudes from the device main body 20. The displacement unit has a rack 51 that is provided on the cassette 21 and extends along the displacement direction in which the cassette 21 is displaced, and a transmission gear 52 that is provided on the device main body 20 and meshes with the rack 51. The medium storage device 19 is configured so that a rotational force can be applied to the transmission gear 52 from outside the device main body 20 via an operation unit 48.

[0060] According to the above configuration, by applying a rotational force to the transmission gear 52 via the operation unit 48 from outside the device main body 20, the cassette 21 can be displaced between the retracted position and the extended position via the rack 51. Therefore, the user can displace the cassette 21 between the retracted position and the extended position without directly touching the cassette 21. This reduces the burden on the user when displacing the cassette 21 between the retracted position and the extended position.

[0061] (2) In the medium accommodation device 19, the operation unit 48 is detachable from the device body 20. According to the above configuration, if the operation unit 48 is attached to the device body 20 and used, and then becomes unnecessary, the operation unit 48 can be removed from the device body 20. This prevents the operation unit 48 from getting in the way. Furthermore, if there are multiple cassettes 21 as in the above embodiment, and the operation unit 48 is configured to be non-detachable, it is necessary to provide an operation unit 48 for each cassette 21 to solve the problem. On the other hand, according to a configuration in which the operation unit 48 is detachable, multiple cassettes 21 can be operated with a single operation unit 48, thereby simplifying the configuration.

[0062] (3) In the medium storage device 19, the cassette 21 has an engaging portion 39. The device main body 20 has an engaged portion 43 that restricts displacement of the cassette 21 by engaging with the engaging portion 39 when the cassette 21 is in the storage position. In the medium storage device 19, the engaging portion 39 and the engaged portion 43 are disengaged by operating the operating unit 48.

[0063] According to the above configuration, the engagement between the engaging portion 39 and the engaged portion 43 is released by the operating portion 48, so that the displacement of the cassette 21 is not restricted when the cassette 21 is displaced by operating the operating portion 48.

[0064] (4) In the medium storage device 19, the device body 20 has a storage recess 50 for storing the operation unit 48. According to the above configuration, the operating part 48 can be stored in the storage recess 50 when not in use, so that the operating part 48 can be prevented from being lost.

[0065] (5) In the medium storage device 19, the storage recess 50 is located above the cassette 21. According to the above-described configuration, since the storage recess 50 is located above the cassette 21, the operation unit 48 stored in the storage recess 50 can be easily accessed.

[0066] (6) The medium accommodation device 19 includes a plurality of cassettes 21. The plurality of cassettes 21 includes at least a first cassette 22 and a second cassette 25. According to the above configuration, even when there are a plurality of cassettes 21, the plurality of cassettes 21 can be displaced by a single operation unit 48.

[0067] (7) The medium storage device 19 further includes an operation unit 48. The first cassette 22 is the cassette 21 located in the uppermost position among the multiple cassettes 21 mounted in a vertical line in the device main body 20. The second cassette 25 is the cassette 21 located in the lowermost position among the multiple cassettes 21. In the medium storage device 19, the length from the connection unit 60 connected to the device main body 20 in the operation unit 48 to the free end 61 located on the opposite side from the connection unit 60 is longer than the distance between the first cassette 22 and the second cassette 25.

[0068] According to the above configuration, the length from the connection portion 60 to the free end 61 of the operating unit 48 is longer than the distance between the first cassette 22 located at the top row and the second cassette 25 located at the bottom row. Therefore, when operating the second cassette 25 located at the bottom row with the operating unit 48, the free end 61 of the operating unit 48 is located near the first cassette 22 located at the top row. Therefore, it is possible to easily operate the first cassette 22 located at the top row to the second cassette 25 located at the bottom row with the operating unit 48.

[0069] Of the plurality of cassettes 21, cassettes 21 that are located at a high enough position to be easily operated by the user do not need to be configured to be operated by the operation unit 48. (8) The medium storage device 19 further includes an operation unit 48. The operation unit 48 has a connection unit 60 that connects to the device main body 20. The connection unit 60 has a connection gear 63 that transmits only the rotational force in one direction or the opposite direction to the one direction, which is generated by operation of the operation unit 48, to the transmission gear 52, and a switching lever 64 that can switch the direction of the rotational force that the connection gear 63 transmits to the transmission gear 52 between the one direction and the opposite direction.

[0070] According to the above configuration, the connecting gear 63 allows the transmission gear 52 to rotate 360° or more without rotating the operation unit 48 360° or more. In other words, the connecting gear 63 allows the transmission gear 52 to rotate 360° or more in one of the one direction and the reverse direction simply by rotating the operation unit 48 so as to alternately reciprocate in one direction and the reverse direction by an angle less than 360°. This allows the cassette 21 to be easily displaced.

[0071] (9) The medium feeding device 18 includes a medium storage device 19 and a feeding unit that feeds the medium M from the medium storage device 19. According to the above configuration, the burden on the user when moving the cassette 21 between the storage position and the protruding position in the medium feeding device 18 can be reduced.

[0072] (10) The recording device 11 includes a medium feeding device 18 and a recording unit 17 that records on the medium M fed by the medium feeding device 18. According to the above configuration, the burden on the user when moving the cassette 21 between the housed position and the protruding position in the recording device 11 can be reduced.

[0073] (11) The operating unit 48 as an operating device is externally connected to the device body 20 of the medium storage device 19, which has a rack 51 provided on the cassette 21 along the displacement direction in which the cassette 21 capable of storing the medium M is displaced relative to the device body 20, and a transmission gear 52 provided on the device body 20 and meshing with the rack 51. The operating unit 48 is configured to be able to apply a rotational force to the transmission gear 52 by being operated while connected to the device body 20.

[0074] According to the above configuration, by applying a rotational force to the transmission gear 52 from outside the device main body 20, the cassette 21 can be displaced via the rack 51. Therefore, the user can displace the cassette 21 without directly touching the cassette 21. Therefore, the burden on the user when displacing the cassette 21 can be reduced.

[0075] (12) The operating unit 48 as an operating device includes a connecting unit 60 that connects to the device body 20. The connecting unit 60 has a connecting gear 63 that transmits only rotational force in one direction or a direction opposite to the one direction to the transmission gear 52, and a switching lever 64 that can switch the direction of the rotational force that the connecting gear 63 transmits to the transmission gear 52 between the one direction and the reverse direction.

[0076] According to the above configuration, the connecting gear 63 allows the transmission gear 52 to rotate 360° or more without rotating the operation unit 48 360° or more. In other words, the connecting gear 63 allows the transmission gear 52 to rotate 360° or more in one of the one direction and the reverse direction simply by rotating the operation unit 48 so as to alternately reciprocate in one direction and the reverse direction by an angle less than 360°. This allows the cassette 21 to be easily displaced.

[0077] <Example of change> The above embodiment can be modified as follows: The above embodiment and the following modifications can be combined with each other within the scope of technical compatibility.

[0078] As shown in FIGS. 13 and 14 , the operating unit 48 may be replaced with an operating unit 70, and a connected unit 71 to which the operating unit 70 is connected may be provided on the device body 20. The connected unit 71 has a connected gear 72 as an example of a ratchet unit and a switching button 73 as an example of a switching unit. The connected gear 72 is rotatably supported on the device body 20. The connected gear 72 has a built-in ratchet mechanism and transmits only one rotational force, either in one direction or in the reverse direction, generated by operation of the operating unit 70 to the transmission gear 52. The switching button 73 is configured to switch the direction of the rotational force transmitted by the connected gear 72 to the transmission gear 52 between the one direction and the reverse direction. The operating unit 70 has a lever 59, a main body 62 to which the tip of the lever 59 is fixed, and a hexagonal wrench 74 provided on one surface of the main body 62. As shown in FIGS. 14 and 15, the connected gear 72 has a hexagonal hole 75 in the center into which the hexagonal wrench part 74 is inserted and removed.

[0079] In this way, by fitting the hex wrench portion 74 of the operating unit 70 into the hexagonal hole 75 of the connected gear 72, the ratchet mechanism of the connected gear 72 can rotate the transmission gear 52 by 360° or more without rotating the operating unit 70 by 360° or more. In other words, by simply rotating the operating unit 70 alternately back and forth in one direction and the reverse direction by an angle of less than 360° using the connected gear 72, the transmission gear 52 can be rotated by 360° or more in one of the one direction and the reverse direction. This makes it easy to displace the cassette 21.

[0080] The connected portion 71 may be provided on the side of the device body 20 in the Y-axis direction, which is the width direction intersecting with the X-axis direction, which is the displacement direction. In this way, the operating portion 70 can be operated from the side of the device body 20, so that the cassette 21 can be displaced without interfering with the cassette 21.

[0081] As shown in FIG. 16 , the operating unit 70 in the medium storage device 19 of FIG. 14 may be replaced with an operating unit 76, and the connected gear 72 may be replaced with a connected gear 77 having a ratchet mechanism. The operating unit 76 includes a lever 59, a main body 62 to which the tip of the lever 59 is fixed, a pair of shafts 78 provided on both sides of the main body 62, and an engaging protrusion 79 provided on one of the shafts 78. A pair of plate-shaped support members 80 facing each other in the Y-axis direction are provided on the device main body 20 at positions outside the connected gear 77 in the Y-axis direction. As shown in FIGS. 16 and 17 , U-shaped bearings 81 are provided on the upper portions of the pair of support members 80, respectively, to rotatably support the pair of shafts 78 of the operating unit 76. As shown in FIGS. 16 and 18 , a U-shaped engaging recess 82 that engages with the engaging protrusion 79 of the operating unit 76 is provided on the outer surface of the connected gear 77 in the Y-axis direction. The engaging protrusion 79 and the engaging recess 82 engage with each other so that the rotational force of the engaging protrusion 79 is transmitted to the engaging recess 82. When the main body 62 of the operating unit 76 is inserted between the pair of support members 80 from above, the pair of shafts 78 are supported by the pair of bearings 81, respectively, and the engaging protrusion 79 engages with the engaging recess 82. Thereafter, when the lever 59 is rotated back and forth in the X-axis direction, the connected gear 77 rotates.

[0082] As shown in FIG. 19 , in the medium storage device 19 of FIG. 16 , the operating unit 76 may be replaced with an operating unit 83, and the connected gear 77 may be replaced with a connected gear 84 having a ratchet mechanism. The operating unit 83 includes a lever 59, a main body 62 to which the tip of the lever 59 is fixed, a pair of shafts 78 provided on both sides of the main body 62, a gear shaft 85 provided on one of the shafts 78, and a gear 86 provided on the tip of the gear shaft 85. A pair of plate-shaped support members 87 facing each other in the Y-axis direction are provided on the device main body 20 at positions outside the connected gear 84 in the Y-axis direction. As shown in FIGS. 19 and 20 , U-shaped bearings 88 that rotatably support the pair of shafts 78 of the operating unit 83 are provided on the upper portions of the pair of support members 87, respectively. Then, when the main body 62 of the operating unit 83 is inserted from above between the pair of support members 87, the pair of shafts 78 are supported by the pair of bearings 88, respectively, and the gear 86 meshes with the connected gear 84. Thereafter, when the lever 59 is rotated back and forth in the X-axis direction, the connected gear 84 rotates.

[0083] The connected gears 72, 77, and 84 do not necessarily have to have a ratchet mechanism. The operation unit 48 may be configured, for example, by a ring-shaped handle. The medium storage device 19 may be applied to an expansion cassette and the device main body to which the expansion cassette is attached. Alternatively, the medium storage device 19 may be configured so that multiple cassettes are attached to the device main body that combines the cassette 21 and the expansion cassette.

[0084] The medium storage device 19 may be applied to a so-called large-capacity cassette that has a cassette arranged in parallel to the side of the device main body 20 and the device main body to which the cassette is attached. The large-capacity cassette is connected, for example, to the side of the device main body 20. Also, the combination of the cassette 21, the device main body 20, and the large-capacity cassette may be considered as the medium storage device 19.

[0085] The operation unit 48 may be permanently installed in the device body 20. In other words, the operation unit 48 may be fixed to the device body 20 so that it cannot be removed from the device body 20. The operating unit 48 may be configured with a tool other than a dedicated tool. That is, the operating unit 48 may be configured with a tool such as a general screwdriver or ratchet.

[0086] The engaging portion 39 may be configured to be slidable in the Y-axis direction, so that when the operating portion 48 is inserted into the insertion opening 49, the engaging portion 39 slides toward the cassette 21, thereby releasing the engagement between the engaging portion 39 and the engaged portion 43.

[0087] When the operating portion 48 is inserted into the insertion opening 49, the engaging portion 39 may be rotated to release the engagement between the engaging portion 39 and the engaged portion 43. The storage unit is not limited to a configuration in which the operating unit 48 is stored in a storage space like the storage recess 50, but may be configured to store the operating unit 48 in a hooked or leaned state.

[0088] The operating portion 48 may be configured so that the length can be changed by configuring the lever portion 59 to be extendable. The engaging portion 39 and the engaged portion 43 may be omitted. That is, the recording device 11 does not need to have a function for locking the cassette 21 in the storage position.

[0089] The connecting gear 63 does not have to have a ratchet mechanism. The storage recess 50 may be omitted. The storage recess 50 does not necessarily have to be located above the cassette 21.

[0090] The number of cassettes 21 attached to the device main body 20 is not limited to four, but may be one, two, three, five or more. The medium accommodation device 19 does not have to be provided with the operation unit 48 as an operation device.

[0091] The gear portion is not limited to one transmission gear 52, but may be configured with multiple gears. Of the multiple cassettes 21, cassettes 21 that are located high enough for users to easily operate them do not need to be configured to be operated by the operation unit 48. In other words, the first cassette 22 may be the cassette 21 located at the top of the multiple cassettes 21 that at least some users find difficult to operate.

[0092] <Technical philosophy> The technical concepts and effects that can be understood from the above-described embodiment and modified examples will be described below.

[0093] (A) A media storage device comprising: a device main body; a cassette attached to the device main body and capable of storing media; and a displacement unit that displaces the cassette between a storage position where the cassette is stored in the device main body and a protruding position where the cassette protrudes from the device main body, wherein the displacement unit has a rack that is provided on the cassette and extends along the displacement direction in which the cassette is displaced; and a gear unit that is provided on the device main body and engages with the rack, and is configured so that a rotational force can be applied to the gear unit from outside the device main body via an operating unit.

[0094] According to the above configuration, by applying a rotational force to the gear part from outside the device body via the operation part, the cassette can be displaced between the retracted position and the extended position via the rack. Therefore, the cassette can be displaced between the retracted position and the extended position without the user having to directly touch the cassette. Therefore, the burden on the user when displacing the cassette between the retracted position and the extended position can be reduced.

[0095] (B) The medium storage device according to (A), wherein the operation unit is detachable from the device body. According to the above configuration, when the operation unit is no longer needed after being attached to the device body and used, the operation unit can be detached from the device body, thereby preventing the operation unit from becoming a hindrance.

[0096] (C) The device body has a connected portion to which the operating portion is connected, and the connected portion has a ratchet portion that transmits only the rotational force in one direction or a direction opposite to the one direction by operating the operating portion to the gear portion, and a switching portion that can switch the direction of the rotational force transmitted by the ratchet portion to the gear portion between the one direction and the opposite direction. (A) A medium storage device described in (B).

[0097] According to the above configuration, the ratchet portion allows the gear portion to rotate 360° or more without rotating the operating portion 360° or more. In other words, the ratchet portion allows the gear portion to rotate 360° or more in one of the one direction and the reverse direction simply by rotating the operating portion back and forth alternately in one direction and the reverse direction by an angle less than 360°. This makes it easy to displace the cassette.

[0098] (D) A medium storage device described in any one of (A) to (C), characterized in that the device main body has a connected portion to which the operating unit is connected, and the connected portion is provided on a side of the device main body in a width direction intersecting the displacement direction.

[0099] According to the above configuration, the operating section can be operated from the side of the device body, so that the cassette can be displaced without interfering with the cassette itself. (E) A media storage device described in any one of (A) to (D), characterized in that the cassette has an engaging portion, the device main body has an engaged portion that engages with the engaging portion when the cassette is in the storage position to regulate displacement of the cassette, and the operating portion disengages the engaging portion from the engaged state.

[0100] According to the above configuration, the engagement between the engaging portion and the engaged portion is released by the operating portion, so that when the cassette is displaced by operating the operating portion, the displacement of the cassette is not restricted.

[0101] (F) The medium storage device according to any one of (A) to (E), wherein the device body has a storage section for storing the operation section. According to the above configuration, the operating unit can be stored in the storage unit when not in use, thereby preventing the operating unit from being lost.

[0102] (G) The medium storage device according to (F), wherein the storage section is located above the cassette. According to the above configuration, since the storage section is located above the cassette, it is possible to easily access the operation section when it is stored in the storage section.

[0103] (H) The medium storage device according to any one of (A) to (G), characterized in that it comprises a plurality of the cassettes, and the plurality of cassettes includes at least a first cassette and a second cassette.

[0104] According to the above configuration, even when there are a plurality of cassettes, the plurality of cassettes can be displaced with a single operation unit. (I) A medium storage device as described in (H), further comprising an operating unit, wherein the first cassette is the cassette located at the top of a plurality of cassettes mounted in a vertical line on the device body, and the second cassette is the cassette located at the bottom of a plurality of cassettes, and the length from the connection portion of the operating unit connected to the device body to the free end located opposite the connection portion is longer than the distance between the first cassette and the second cassette.

[0105] According to the above configuration, the length from the connection portion to the free end of the operating unit is longer than the distance between the first cassette located in the uppermost row and the second cassette located in the lowermost row. Therefore, when operating the second cassette located in the lowermost row with the operating unit, the free end of the operating unit is located near the first cassette located in the uppermost row. Therefore, it is possible to easily operate the first cassette located in the uppermost row through the second cassette located in the lowermost row with the operating unit.

[0106] (J) A medium storage device as described in (A) or (B), further comprising an operating unit, the operating unit having a connection part for connecting to the device main body, the connection part having a ratchet part that transmits only the rotational force in one direction or a direction opposite to the one direction by operating the operating unit to the gear part, and a switching part that can switch the direction of the rotational force transmitted by the ratchet part to the gear part between the one direction and the opposite direction.

[0107] According to the above configuration, the ratchet portion allows the gear portion to rotate 360° or more without rotating the operating portion 360° or more. In other words, the ratchet portion allows the gear portion to rotate 360° or more in one of the one direction and the reverse direction simply by rotating the operating portion back and forth alternately in one direction and the reverse direction by an angle less than 360°. This makes it easy to displace the cassette.

[0108] (K) A medium feeding device comprising: the medium storage device according to any one of (A) to (J); and a feeding unit that feeds the medium from the medium storage device. According to the above configuration, the burden on the user when displacing the cassette between the storage position and the protruding position in the medium feeding device can be reduced.

[0109] A recording device comprising: a medium feeding device according to (L) and (K); and a recording unit that records on the medium fed by the medium feeding device. According to the above configuration, the burden on the user when moving the cassette between the housed position and the protruding position in the recording device can be reduced.

[0110] (M) An operating device that is connected externally to the device body of a media storage device having a rack provided on a cassette that can store media in accordance with the displacement direction of the cassette relative to the device body, and a gear portion that is provided on the device body and engages with the rack, and that is configured to be able to apply a rotational force to the gear portion when operated while connected to the device body.

[0111] According to the above configuration, the cassette can be displaced via the rack by applying a rotational force to the gear part from outside the device body. This allows the user to displace the cassette without directly touching it. This reduces the burden on the user when displacing the cassette.

[0112] (N) An operating device as described in (M), which is provided with a connecting part for connecting to the device main body, and which has a ratchet part that transmits only the rotational force to the gear part in either one direction or a direction opposite to the one direction, and a switching part that can switch the direction of the rotational force transmitted by the ratchet part to the gear part between the one direction and the opposite direction.

[0113] According to the above configuration, the ratchet portion allows the gear portion to rotate 360° or more without rotating the operating device 360° or more. In other words, the ratchet portion allows the gear portion to rotate 360° or more in one of the one direction and the reverse direction simply by rotating the operating device back and forth alternately in one direction and the reverse direction by an angle less than 360°. This makes it easy to displace the cassette. [Explanation of symbols]

[0114] 11...recording device, 12...printer unit, 12A...front, 12B...first side, 12C...second side, 12D...rear, 13...image reading unit, 14...automatic document feeder unit, 15...operation panel, 16...stacker unit, 17...recording unit, 18...media feeder device, 19...media storage device, 20...device main body, 21...cassette, 22...first cassette, 23...intermediate upper cassette, 24...intermediate lower cassette, 25... Second cassette, 26...feed roller, 27...hopper, 28...conveying path, 28A...common path, 28B...individual path, 29...separation roller pair, 30...conveying roller pair, 31...recording head, 32...belt conveying mechanism, 33...conveying belt, 34...discharge roller pair, 35...handle recess, 36...opening, 37...locking shaft, 38...wall portion, 39...engaging portion, 40...hook portion, 41...inclined surface, 42...stopper , 43...engaged portion, 44...spring, 45...release lever, 46...lever protrusion, 47...shaft protrusion, 48...operation portion, 49...insertion opening, 50...storage recess, 51...rack, 52...transmission gear, 53...lock gear, 54...connecting shaft, 55...idle gear, 56...first idle gear, 57...second idle gear, 58...bearing portion, 59...lever portion, 60...connection portion, 61...free end, 62...main body portion, 63...connection Gear, 64...switching lever, 65...shaft portion, 70...operating portion, 71...connected portion, 72...connected gear, 73...switching button, 74...hexagonal wrench portion, 75...hexagonal hole, 76...operating portion, 77...connected gear, 78...shaft portion, 79...engaging protrusion, 80...support member, 81...bearing portion, 82...engaging recess, 83...operating portion, 84...connected gear, 85...gear shaft, 86...gear, 87...support member, 88...bearing portion, M...medium.

Claims

1. A device body, a cassette attached to the device body and capable of accommodating a medium; a displacement unit that displaces the cassette between a storage position where the cassette is stored in the device body and a protruding position where the cassette protrudes from the device body; Equipped with The displacement portion is a rack provided on the cassette and extending along a displacement direction in which the cassette is displaced; a gear portion provided in the device body and meshing with the rack; and A medium storage device, characterized in that a rotational force can be applied to the gear portion from outside the device body via an operation portion.

2. The medium storage device according to claim 1 , wherein the operation unit is detachable from the device body.

3. the device body has a connection portion to which the operation portion is connected, The connected portion is a ratchet portion that transmits the rotational force to the gear portion only in one direction or in a direction opposite to the one direction, which is generated by operation of the operating portion; a switching unit that switches the direction of the rotational force transmitted by the ratchet unit to the gear unit between the one direction and the reverse direction; 3. The medium storage device according to claim 2, further comprising:

4. the device body has a connection portion to which the operation portion is connected, The medium storage device according to claim 1 , wherein the connected portion is provided on a side portion of the device body in a width direction intersecting with the displacement direction.

5. the cassette has an engagement portion, the device body has an engaged portion that restricts displacement of the cassette by engaging with the engaging portion when the cassette is in the storage position, The medium storage device according to claim 2 , wherein the operating portion disengages the engaging portion from the engaged portion.

6. 3. The medium storage device according to claim 2, wherein the device body has a storage section for storing the operation section.

7. The medium storage device according to claim 6 , wherein the storage section is located above the cassette.

8. A plurality of the cassettes is provided, 8. The medium storage device according to claim 1, wherein the plurality of cassettes includes at least a first cassette and a second cassette.

9. The operation unit is further provided, the first cassette is the cassette located at the top of the plurality of cassettes attached to the apparatus main body in a vertical line, the second cassette is the cassette located at the bottom of the plurality of cassettes, The medium storage device described in claim 8, characterized in that the length from the connection portion connected to the device main body in the operation unit to the free end located on the opposite side of the connection portion is longer than the distance between the first cassette and the second cassette.

10. The operation unit is further provided, the operation unit has a connection unit that is connected to the device main body, The connection portion is a ratchet portion that transmits the rotational force to the gear portion only in one direction or in a direction opposite to the one direction, which is generated by operation of the operating portion; a switching unit that switches the direction of the rotational force transmitted by the ratchet unit to the gear unit between the one direction and the reverse direction; The medium storage device according to any one of claims 2 and 5 to 7, further comprising:

11. A medium storage device according to any one of claims 1 to 7; a feeding unit that feeds the medium from the medium storage device; A medium feeding device comprising:

12. The medium feeding device of claim 11; a recording unit that records on the medium fed by the medium feeding device; A recording device comprising:

13. a rack provided on a cassette capable of accommodating a medium in a direction in which the cassette is displaced relative to the device body, and a gear portion provided on the device body and meshing with the rack; and the rack is connected externally to the device body; An operating device configured to be able to apply a rotational force to the gear portion by being operated while connected to the device body.

14. a connection part for connecting to the device main body, The connection portion is a ratchet portion that transmits the rotational force to the gear portion only in one direction or in a direction opposite to the one direction; a switching unit that switches the direction of the rotational force transmitted by the ratchet unit to the gear unit between the one direction and the reverse direction; 14. The operating device according to claim 13, further comprising:

Images