Image reading device

Abstract

To provide an image reading device capable of suppressing damage and a reading failure caused by transportation or the like.SOLUTION: An image reading device 1 comprises: a device main body 10; a carriage 20 to which a reading part 21 that reads an image is mounted, and which is movably arranged to the device main body 10; and depressing parts 30 and 40. The depressing parts 30 and 40 are fixed and arranged to a lock release position P1 and a lock position P2, and nips the carriage 20 by being pressed in depression directions D1 and D2 in the device main body 10 in a state where movement of depressed parts 22 and 23 provided to the carriage 20 at the lock position P2 is regulated in a first direction (e.g., a vertical direction or a sub-scanning direction) that is different from both of the depression directions D1 and D2.SELECTED DRAWING: Figure 10

Description

[Technical field]

[0001] The present invention relates to an image reading device having a carriage that is arranged movably relative to a device body. [Background technology]

[0002] Conventionally, in order to prevent the image reading unit from becoming fixed due to a user erroneously operating an operating lever, an image reading device has been proposed that moves the image reading unit to multiple unrestricted positions that differ in the ease of moving to the restricted position (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6997961 Summary of the Invention [Problem to be solved by the invention]

[0004] In an image reading device, a reading unit that reads an image is attached to a carriage that is movable relative to the device body. The reading unit also has an image sensor, multiple mirrors, multiple lenses, etc., to generate image data that represents an optical image of the light receiving surface. Therefore, if the carriage moves due to vibration or impact during product transportation, the device may be damaged, or wear powder may be scattered inside the device due to friction between parts, which may appear in the read image and cause reading errors.

[0005] As described above, image reading devices in which the reading unit can be moved to a restricted position are locked using a snap fit, so there is a large amount of play during product transportation due to variations in component dimensions, etc. Therefore, the device may be damaged or reading may be impaired due to vibrations or shocks during product transportation.

[0006] An object of the present invention is to provide an image reading device that can prevent damage and reading errors caused by transportation or the like. [Means for solving the problem]

[0007] In one aspect, an image reading device comprises a device body, a carriage having a reading unit that reads images attached thereto and arranged to be movable relative to the device body, and a pressing unit that is arranged to be fixable to an unlocked position and a locked position, and in the locked position, clamps the carriage within the device body by pressing a pressed portion provided on the carriage in the pressing direction while restricting movement of the pressed portion in a first direction different from the pressing direction. Effect of the Invention

[0008] According to the above aspect, damage and reading errors caused by transportation or the like can be suppressed. [Brief description of the drawings]

[0009] [Figure 1] 1 is a perspective view showing an internal structure of an image reading device according to a first embodiment. [Diagram 2] FIG. 2 is a perspective view showing the device main body in the first embodiment. [Diagram 3] FIG. 2 is a perspective view showing a carriage in the first embodiment. [Figure 4] FIG. 4 is a perspective view showing a pressing portion on the front side in the first embodiment. [Diagram 5] FIG. 4 is a perspective view showing a pressed portion on the front side in the first embodiment. [Figure 6] FIG. 4 is a perspective view showing a pressing portion on the rear side in the first embodiment. [Figure 7] FIG. 4 is a perspective view showing a rear-side pressed portion in the first embodiment. [Figure 8A] FIG. 4 is a perspective view showing a pressing portion (unlocked position) and a pressed portion on the front side in the first embodiment. [Figure 8B]FIG. 4 is a perspective view showing a pressing portion (locked position) and a pressed portion on the front side in the first embodiment. [Figure 9A] 4 is a cross-sectional view of the pressing portion (unlocked position) and the pressed portion on the front and rear sides in the first embodiment, as viewed from the left side. FIG. [Figure 9B] 4 is a cross-sectional view of the pressing portion (locked position) and the pressed portion on the front and rear sides in the first embodiment, as viewed from the left side. FIG. [Figure 10] FIG. 4 is an enlarged perspective view showing a pressing portion (locked position) and a pressed portion on the front side in the first embodiment. [Figure 11] FIG. 11 is a perspective view showing a carriage in a modified example of the first embodiment. [Figure 12] 13 is a cross-sectional view of the front and rear pressing portions (locked position) and a pressed shaft in the second embodiment, as viewed from the left side. FIG. [Figure 13] FIG. 13 is a cross-sectional view of the pressing portion (locked position) and the pressed portion on the front and rear sides in the third embodiment, as viewed from the left side. [Figure 14] FIG. 13 is an enlarged perspective view showing a pressing portion (unlocked position) and a pressed portion on the front side in the fourth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Image reading devices according to first to fourth embodiments of the present invention will be described below with reference to the drawings.

[0011] First Embodiment FIG. 1 is a perspective view showing the internal structure of an image reading device 1. As shown in FIG.

[0012] FIG. 2 is a perspective view showing the device main body 10, and FIG.

[0013] 1 to 3 and 4 to 14 described later, the up-down, front-back, and left-right directions are examples in which the main scanning direction is the front-back direction and the sub-scanning direction is the left-right direction. For example, the up-down direction is the vertical direction, and the front-back and left-right directions are horizontal directions that are perpendicular to each other.

[0014] The image reading device 1 shown in Fig. 1 includes a device body 10, a carriage 20, and pressing units 30 and 40 (see Fig. 2). The image reading device 1 may be disposed as part of a device such as an image forming device (digital multifunction device, facsimile) that performs processing based on an image read by the image reading device 1, or may be used alone and connected wirelessly or by wire to other devices such as an image forming device or a user terminal. The image reading device 1 may further include a document cover that covers the top of the device body 10, a size detection sensor, a control unit, a storage unit, and the like.

[0015] 2 is a housing portion that houses the carriage 20 in the image reading device 1. For example, an object to be read, such as a document, is placed on a transparent document table disposed on the upper portion of the device body 10.

[0016] 3 is equipped with a reading unit 21 that reads an image, and is arranged to be movable in the sub-scanning direction relative to the device body 10. The carriage 20 is arranged, for example, inside the device body 10, and moves along guides (not shown) that extend in the sub-scanning direction with front and rear sliders. The reading unit 21 has, for example, an imaging element, multiple mirrors, multiple lenses, a light source, and the like. A plurality of imaging elements are arranged in the main scanning direction to form a line sensor, and read an image of the back side of a document placed on the device body 10. The imaging element is, for example, a CCD (Charge Coupled Device).

[0017] The carriage 20 has pressed portions 22 and 23 on the front and rear sides, respectively. These pressed portions 22 and 23 are provided by being fixed to the carriage 20, for example, but may be provided integrally with the carriage 20.

[0018] 5 has a pressed shaft 22a and a support plate 22b that supports the pressed shaft 22a. The pressed shaft 22a extends in the sub-scanning direction and is rotatably supported at both ends by the support plate 22b. The support plate 22b has a U-shaped plate shape that opens forward in a plan view.

[0019] The pressed portion 23 on the rear side shown in Fig. 7 is provided in a shape that is approximately symmetrical in the front-rear direction with the pressed portion 22. The pressed portion 23 has a pressed shaft 23a and a support plate 23b that supports the pressed shaft 23a. The pressed shaft 23a extends in the sub-scanning direction and is rotatably supported at both ends by the support plate 23b. The support plate 23b has a U-shaped plate shape that opens backward in a plan view.

[0020] The pressing part 30 on the front side shown in FIG. 4 is provided on the left side surface part so that a bifurcated holding part 31, which is bifurcated into upper and lower parts, protrudes backward (in a pressing direction D1 shown in FIG. 9B described later). This bifurcated holding part 31 holds the pressed shaft 22a between the upper and lower bifurcated parts so as to restrict the movement of the pressed part 22 in the vertical direction (an example of a first direction perpendicular to the pressing direction D1). In addition, a tapered part 31a tapered toward the rear (in the pressing direction D1) is provided on the mutually facing surfaces of the upper and lower bifurcated parts of the bifurcated holding part 31 so that the pressed shaft 22a can easily enter the bifurcated holding part 31. As a result, the tapered part 31a guides the pressing part 30 to the lock position P2 shown in FIG. 9B.

[0021] An oblong hole 32 that is long in the main scanning direction is provided in the upper surface portion of the pressing unit 30 that is exposed on the upper side of the device body 10. In addition, a bent portion 33 that is bent to the right is provided at the lower end of the left side surface portion of the pressing unit 30. For example, the pressing unit 30 is a plate material that is bent at a right angle between the upper surface portion and the left side surface portion, and is bent at a right angle between the left side surface portion and the lower surface portion (bent portion 33).

[0022] The pressing part 40 on the rear side shown in FIG. 6 is provided in a shape that is almost symmetrical in the front-rear direction with the pressing part 30. The pressing part 40 is provided on the left side surface part so that a bifurcated holding part 41 that branches into upper and lower parts protrudes forward (pressing direction D2 shown in FIG. 9B). This bifurcated holding part 41 holds the pressed shaft 23a between the upper and lower branch parts of the bifurcated part so as to restrict the movement of the pressed part 23 in the up-down direction (an example of a first direction perpendicular to the pressing direction D2). In addition, a tapered part 41a that is tapered toward the front (pressing direction D2) is provided on the mutually facing surfaces of the upper and lower branch parts of the bifurcated holding part 41 so that the pressed shaft 23a can easily enter the bifurcated holding part 41. As a result, the tapered part 41a guides the pressing part 40 to the lock position P2 shown in FIG. 9B.

[0023] An oblong hole 42 that is long in the main scanning direction is provided in the upper surface portion of the pressing unit 40 that is exposed on the upper side of the device body 10. In addition, a bent portion 43 that is bent to the right is provided at the lower end of the left side surface portion of the pressing unit 40. For example, the pressing unit 40 is a plate material, and is bent at a right angle between the upper surface portion and the left side surface portion, and is bent at a right angle between the left side surface portion and the lower surface portion (bent portion 43).

[0024] The following describes how to lock the carriage 20 when, for example, transporting the image reading device 1. Note that the following mainly describes the pressed portion 22 and the pressing portion 30 on the front side, but the same applies to the pressed portion 23 and the pressing portion 40 on the rear side, symmetrically in the front-rear direction.

[0025] As shown in Fig. 8A, during normal operation, such as when the image reading device 1 is in use, the pressing part 30 is fixed to the device body 10 by the screw 34 at an unlocked position P1 where the bifurcated holding part 31 is separated from the pressed part 22. On the other hand, as shown in Fig. 8B, during transportation of the image reading device 1, the pressing part 30 is fixed to the device body 10 by the screw 34 at a locked position P2 where the bifurcated holding part 31 presses the pressed part 22 in a pressing direction D1.

[0026] A screw 34 and a boss 35, the position of which is fixed in a plan view, are inserted into the long hole 32 so that the pressing unit 30 can move linearly in the main scanning direction (pressing direction D1) between the unlocked position P1 and the locked position P2. The screw 34 is fixed to the device body 10 by sandwiching the upper surface portion of the pressing unit 30 (around the long hole 32). The boss 35 is formed, for example, by half-punching the sheet metal of the device body 10 upward. Then, when the screw 34 is loosened, the position of the pressing unit 30 is fixed by the screw 34 when the user retreats the pressing unit 30 to the unlocked position P1 or pushes it into the locked position P2 in the main scanning direction. By a simple operation of loosening and tightening the screw 34, the pressing unit 30 can be fixed to the unlocked position P1 and the locked position P2 without the need to remove the pressing unit 30 from the image reading device 1. The boss 35 is an example of a guide pin, and this guide pin may be a screw, etc. In addition, since the pressing part 30 is hooked onto the pressed part 22 by moving from the unlocked position P1 to the locked position P2 in the pressing direction D1, the pressing part 30 can also be called a fixed hook member.

[0027] 9A and 9B, the pressing direction D1 of the pressing portion 30 on the front side is backward, and the pressing direction D2 of the pressing portion 40 on the rear side is forward, that is, the directions in which they approach each other. This allows the pressing portions 30, 40 to sandwich the carriage 20 in the main scanning direction within the device body 10.

[0028] 10, when the pressing portion 30 is in the lock position P2, the bent portion 33 may be in contact with the pressed portion 22 (such as the right portion of the support plate 22b) or may be positioned with a small gap therebetween. This allows the pressing portion 30 to restrict movement of the pressed portion 22 in the sub-scanning direction (an example of a second direction perpendicular to the pressing direction D1 and the first direction (up-down direction)).

[0029] The above-mentioned configuration of the image reading device 1 is merely an example. For example, the carriage 20 (reading unit 21) may be disposed above the surface on which the document is placed. In that case, the device body 10 may be disposed as a housing portion that houses the carriage 20 in, for example, a document cover portion above the surface on which the document is placed. The pressing directions D1, D2 of the pressing units 30, 40 may be different from the main scanning direction. The pressed shafts 22a, 23a may be provided on the pressing units 30, 40 side, and the bifurcated holding portions 31, 41 may be provided on the pressed units 22, 23 side, and the structures of the pressing units 30, 40 and the pressed units 22, 23 may be changed as desired. Tapered portions 31a, 41a for guiding the pressing units 30, 40 to the lock position P2 may be provided on the pressed units 22, 23 side. Furthermore, the structure for moving the pressing portion 30 between the unlocked position P1 and the locked position P2 is not limited to the structure using the long hole 32, the screw 34, and the boss 35, but rather it is sufficient if the pressing portion 30 can be positioned so as to be immovable, particularly at the locked position P2.

[0030] In the first embodiment described above, the image reading device 1 includes a device body 10, a carriage 20, and pressing units 30 and 40. The carriage 20 is equipped with a reading unit 21 that reads an image, and is arranged to be movable relative to the device body 10. The pressing units 30 and 40 are arranged to be fixable to an unlocked position P1 and a locked position P2, and at the locked position P2, the pressing units 30 and 40 press pressed units 22 and 23 provided on the carriage 20 in the pressing directions D1 and D2 while restricting movement of the pressed units in a vertical direction (an example of a first direction) different from the pressing directions D1 and D2, thereby clamping the carriage 20 within the device body 10.

[0031] This restricts the movement of the pressed portions 22, 23 in the pressing directions D1, D2 (main scanning direction) and the vertical direction, thereby preventing the carriage 20 from moving due to vibrations or shocks during transportation (or earthquakes and the like during periods of non-use). This prevents the image reading device 1 from being damaged, or wear powder from rubbing against each other that is scattered inside the image reading device 1 and reflected in the read image, causing reading errors. Therefore, according to the first embodiment, it is possible to prevent damage and reading errors caused by transportation and the like.

[0032] In the first embodiment, the pressing portions 30, 40 (an example of at least one of the pressing portions 30, 40 and the pressed portions 22, 23) have tapered portions 31a, 41a for guiding the pressing portions 30, 40 to the lock position P2.

[0033] This makes it possible to more reliably move the pressing portion 30 to the lock position P2, thereby making it possible to further prevent damage and reading errors caused by transportation or the like.

[0034] In the first embodiment, the image reading device 1 includes the two pressing portions 30, 40 whose pressing directions D1, D2 are directions in which they approach each other.

[0035] This makes it possible to more reliably prevent the carriage 20 from moving due to vibrations or shocks during transportation, and therefore makes it possible to further prevent damage and reading errors caused by transportation or the like.

[0036] Furthermore, in this first embodiment, the pressing portions 30, 40 press the pressed portions 22, 23 in pressing directions D1, D2 while restricting movement in the up-down direction (an example of a first direction) perpendicular to the pressing directions D1, D2 and movement in the sub-scanning direction (an example of a second direction) perpendicular to the up-down direction and the pressing directions D1, D2.

[0037] This restricts the movement of the carriage 20 in the mutually orthogonal main scanning direction, sub-scanning direction, and up-down direction, so that it is possible to more reliably prevent the carriage 20 from moving due to vibrations or shocks during transportation, etc. Therefore, it is possible to further prevent damage and reading errors caused by transportation, etc.

[0038] <Modification of the first embodiment> FIG. 11 is a perspective view showing a carriage 20 in a modified example of the first embodiment.

[0039] The carriage 20 shown in FIG. 11 can be similar to the carriage 20 shown in FIG. 3, but moves in the sub-scanning direction while being guided by a shaft 11 extending in the sub-scanning direction provided at the rear of the device body 10 on the rear side slider.

[0040] When the carriage 20 is guided by the shaft 11 in this manner, the image reading device 1 is provided with only the front pressing portion 30 of the two pressing portions 30, 40 mentioned above, and this pressing portion 30 presses the pressed portion 22 provided only on the front side in the pressing direction D1, thereby clamping the carriage 20 between the shaft 11.

[0041] This allows the carriage 20 to be securely clamped by the single pressing portion 30, making it possible to suppress damage and reading errors caused by transportation, etc., with a simple configuration. The single pressing portion 30 may clamp the carriage 20 between itself and another portion of the device body 10 (for example, a guide portion that guides the carriage 20 in the sub-scanning direction) instead of the shaft 11, but by clamping the pressed portion 22 between itself and the shaft 11, the carriage 20 can be securely clamped.

[0042] <Second embodiment> FIG. 12 is a cross-sectional view of the front and rear pressing portions 130, 140 (lock position P2) and the pressed shafts 22a, 23a in the second embodiment as viewed from the left side.

[0043] In the second embodiment, the structure can be the same as that of the first embodiment described above, except for the structure of the bifurcated holding portions 131, 141 of the pressing portions 130, 140. Therefore, a description of the overlapping points will be omitted.

[0044] The pressing parts 130, 140 have long holes 32, 42 and bent parts 33, 43 (see Figs. 4 and 6) similarly to the first embodiment described above. The pressing parts 130, 140 are provided on the left side surface part such that a bifurcated holding part 131, 141 that branches into upper and lower parts protrudes in the pressing directions D1, D2. The bifurcated holding part 131, 141 holds the pressed shaft 22a, 23a between the upper and lower branched parts of the bifurcations so as to restrict the movement of the pressed parts 22, 23 in the vertical direction.

[0045] In addition, in the pressing parts 130, 140 in the second embodiment, tapered parts 131a, 141a tapered in the pressing directions D1, D2 are provided over the entire surfaces facing each other of the upper and lower branch parts of the bifurcated holding parts 131, 141 so that the pressed shafts 22a, 23a can easily enter the bifurcated holding parts 131, 141 and the vertical movement can be more reliably restricted. As a result, the tapered parts 131a, 141a can guide the pressing parts 130, 140 to the lock position P2, and at the lock position P2, the tapered parts 131a, 141a come into contact with the pressed shafts 22a, 23a, and the vertical movement of the pressed shafts 22a, 23a (carriage 20) can be more reliably restricted.

[0046] In the second embodiment described above, the same effects as those in the first embodiment can be obtained with respect to the same configuration, that is, the effect of suppressing damage and reading errors caused by transportation or the like.

[0047] <Third embodiment> FIG. 13 is a cross-sectional view of the pressing portions 230, 240 (lock position P2) and the pressed portions 222, 223 on the front and rear sides in the third embodiment, as viewed from the left side.

[0048] In the third embodiment, the structure can be the same as that of the first embodiment described above, except for the structures of the pressing portions 230, 240 and the pressed portions 222, 223. Therefore, a description of the overlapping points will be omitted.

[0049] The pressed portions 222 and 223 are provided by being fixed to the carriage 20, or are provided integrally with the carriage 20, for example.

[0050] The pressed parts 222 and 223 in the third embodiment have pressed plates 222a and 223a. The pressed plates 222a and 223a have a flat plate shape extending in the left-right direction (sub-scanning direction) perpendicular to the main scanning direction (pressing directions D1 and D2) and in the up-down direction. The pressed plates 222a and 223a are provided with, for example, circular holes 222b and 223b.

[0051] Moreover, the pressing parts 230, 240 in the third embodiment have pressing shafts 231, 241. The pressing shafts 231, 241 have a columnar shape (for example, a cylindrical shape) with the pressing directions D1, D2 as the central axis, and have tapered parts 231a, 241a at the ends in the pressing directions D1, D2 for guiding the pressing parts 230, 240 to the lock position P2. At the tapered parts 231a, 241a, the pressing shafts 231, 241 are inserted into the holes 222b, 223b of the pressed parts 222, 223, and come into contact with the peripheries of the holes 222b, 223b. Therefore, in the third embodiment, similarly to the second embodiment, when the pressing parts 230, 240 are in the lock position P2, the tapered parts 231a, 241a come into contact with the pressed plates 222a, 223a, and can more reliably restrict the vertical movement of the pressed plates 222a, 223a (carriage 20). In addition, when the pressing shafts 231, 241 have a cylindrical shape and the holes 222b, 223b have a circular shape, the movement of the pressed parts 222, 223 (carriage 20) is restricted not only in the vertical direction but also in the sub-scanning direction when the pressing shafts 231, 241 come into contact with the holes 222b, 223b.

[0052] In the third embodiment described above, the same effects as those in the first embodiment can be obtained with respect to the same configuration, that is, the effect of suppressing damage and reading errors caused by transportation, etc. can be obtained.

[0053] <Fourth embodiment> FIG. 14 is an enlarged perspective view showing a pressing portion 330 (unlocked position P1) and a pressed portion 322 on the front side in the fourth embodiment.

[0054] In the fourth embodiment, the structure can be the same as that of the first embodiment described above, except for the structure of the bifurcated holding portion 331 (pressing portion 330) and the pressed shaft 322a (pressed portion 322). Therefore, a description of overlapping points will be omitted. In addition, in the fourth embodiment, the pressed portion 322 and pressing portion 330 on the front side will be described as an example, but the same can be said about the pressed portion and pressing portion on the rear side symmetrically in the front-rear direction.

[0055] The pressed portion 322 has a pressed shaft 322a and a support plate 322b that supports the pressed shaft 322a. The support plate 322b has a U-shaped plate shape that opens forward in a plan view, similar to the support plate 22b (see FIG. 5) of the first embodiment described above. The pressed shaft 322a extends in the sub-scanning direction, and both ends are supported by the support plate 322b so as to be rotatable, for example. The pressed shaft 322a is provided with a groove 322c into which the bifurcated holding portion 331 of the pressing portion 330 is inserted. The groove 322c is, for example, a portion with a smaller diameter than other portions of the pressed shaft 322a. If the groove 322c has a width in the sub-scanning direction that narrows toward the inside (bottom), it functions as a tapered portion for guiding the pressing portion 330 to the lock position P2. Furthermore, if the groove 322c is provided with a tapered portion in this manner, the pressing portion 330 can more reliably restrict the movement of the pressed portion 322 (the carriage 20) in the sub-scanning direction.

[0056] The pressing portion 330 may be similar to the pressing portion 130 of the second embodiment shown in Fig. 12, and has a long hole 32 and a bent portion 33 similar to the above-mentioned first embodiment. The pressing portion 330 is provided on the left side surface portion with a bifurcated holding portion 331 that is bifurcated into upper and lower portions and protrudes rearward (in the pressing direction). This bifurcated holding portion 331 holds the pressed shaft 322a between the upper and lower bifurcated portions so as to restrict the movement of the pressed portion 322 in the vertical direction.

[0057] In addition, in the pressing part 330, a tapered part 331a tapered toward the rear (pressing direction) is provided over the entire mutually facing surfaces of the upper and lower branch parts of the bifurcated holding part 331 so that the pressed shaft 322a can easily enter the bifurcated holding part 331 and the vertical movement can be more reliably restricted. If a tapered part is provided so that the thickness in the thickness direction (left and right direction) becomes thinner at the rear (pressing direction) tip of the bifurcated holding part 331 (pressing part 330), the movement of the pressed part 322 (carriage 20) in the sub-scanning direction can also be more reliably restricted in the groove 322c.

[0058] In the fourth embodiment described above, the same effects as those of the first embodiment can be obtained with respect to the same configuration, that is, the effect of suppressing damage and reading errors caused by transportation, etc. can be obtained.

[0059] The present invention is not limited to the above-mentioned first to fourth embodiments as they are, and can be embodied by modifying the components within the scope of the gist of the invention in the implementation stage. In addition, various inventions can be formed by appropriate combinations of multiple components disclosed in each of the above-mentioned embodiments. For example, all components shown in each embodiment may be appropriately combined. Of course, various modifications and applications are possible within the scope of the invention. Some of the inventions described in the specification of this application are listed below.

[0060] [Appendix 1] A device body, a carriage on which a reading unit for reading an image is mounted and which is arranged movably relative to the device body; a pressing portion that is arranged so as to be fixable between an unlocked position and a locked position, and that, at the locked position, presses a pressed portion provided on the carriage in a pressing direction while restricting movement of the pressed portion in a first direction different from the pressing direction, thereby clamping the carriage within the device body; An image reading device comprising:

[0061] [Appendix 2] At least one of the pressing portion and the pressed portion has a tapered portion for guiding the pressing portion to the lock position. 2. The image reading device according to claim 1,

[0062] [Appendix 3] The pressing direction is a direction in which the pressing portions approach each other. 3. The image reading device according to claim 1 or 2.

[0063] [Appendix 4] the device body has a shaft that guides the carriage, The pressing portion presses the pressed portion in the pressing direction to sandwich the carriage between the pressing portion and the shaft. 3. The image reading device according to claim 1 or 2.

[0064] [Appendix 5] the first direction is a direction perpendicular to the pressing direction, The pressing portion presses the pressed portion in the pressing direction while restricting the movement of the pressed portion in the first direction and in a second direction perpendicular to the first direction and the pressing direction. 5. The image reading device according to claim 1, [Explanation of symbols]

[0065] 1 Image reader 10. Device body 11 Shaft 20 Carriage 21 Reading unit 22, 23 Pressed part 22a, 23a Pressed shaft 22b,23b Support plate 30,40 Pressing part 31,41 Bifurcated holding part 31a, 41a Tapered section 32,42 long hole 33,43 Bending section 34 Screws 35 Boss 130,140 Pressing part 131,141 Bifurcated holding part 131a, 141a Tapered section 222, 223 Pressed part 222a,223a Pressed plate 222b,223b hole 230,240 Pressing part 231,241 Pressing shaft 231a, 241a Tapered section 322 Pressed part 322a Pressed shaft 322b Support plate 322c groove 330 Pressing part 331 Bifurcated holding part 331a Tapered section D1, D2 pressing direction P1 Unlocked position P2 Lock position

Claims

1. A device body, a carriage on which a reading unit for reading an image is mounted and which is arranged movably relative to the device body; a pressing portion that is arranged so as to be fixable between an unlocked position and a locked position, and that, at the locked position, presses a pressed portion provided on the carriage in a pressing direction while restricting movement of the pressed portion in a first direction different from the pressing direction, thereby clamping the carriage within the device body; An image reading device comprising:

2. At least one of the pressing portion and the pressed portion has a tapered portion for guiding the pressing portion to the lock position.

2. The image reading apparatus according to claim 1, wherein:

3. The pressing direction is a direction in which the pressing portions approach each other.

3. The image reading apparatus according to claim 1, wherein the image reading apparatus is a digital camera.

4. the device body has a shaft that guides the carriage, The pressing portion presses the pressed portion in the pressing direction to sandwich the carriage between the pressing portion and the shaft.

3. The image reading apparatus according to claim 1, wherein the image reading apparatus is a digital camera.

5. The first direction is a direction perpendicular to the pressing direction, The pressing portion presses the pressed portion in the pressing direction while restricting the movement of the pressed portion in the first direction and in a second direction perpendicular to the first direction and the pressing direction.

3. The image reading apparatus according to claim 1, wherein the image reading apparatus is a digital camera.

Images