Recording device

Abstract

To suppress a posture of a carriage from becoming unstable with respect to a guide shaft because of manufacturing tolerance or the like.SOLUTION: A recording device 1 comprises: a sandwiched member 20 in contact with a first guide shaft 13 at a guide shaft-side contact surface 21 and arranged between a carriage 9 and the first guide shaft 13 in a second direction; and a cam member 30 in contact with a first curve surface 22 of the sandwiched member 20 and rotating with a first direction as a rotary axis 33 with respect to the carriage 9 while engaging with the carriage 9. The cam member 30 is configured to make a second curve surface 32 which slidably engages with the first curve surface 22 press the first curve surface 22 in the second direction, and to change a position of the carriage 9 with respect to the sandwiched member 20 in the second direction through change of a distance L in the second direction at a position where the second curve surface 32 with respect to the rotary axis 33 presses the first curve surface 22 accompanying rotation thereof.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a recording apparatus.

Background Art

[0002] Conventionally, various recording apparatuses have been used. Among these, there is a recording apparatus that forms an image by reciprocating a carriage having a head for discharging a liquid with respect to a recording medium. For example, Patent Document 1 discloses a recording apparatus including a main carriage attached to a carriage guide shaft and reciprocating along the carriage guide shaft, and a sub-carriage provided with a liquid ejection head attached to the main carriage. In a conventional recording apparatus that forms an image by reciprocating a carriage having a head for discharging a liquid with respect to a recording medium, such as the recording apparatus of Patent Document 1, there are those capable of changing the posture of the carriage with respect to the guide shaft. The recording apparatus of Patent Document 1 is capable of relatively moving the sub-carriage with respect to the main carriage and changing the posture of the sub-carriage with respect to the carriage guide shaft.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The recording device described in Patent Document 1 has eccentric cams positioned to contact the notches at both ends of the sub-carriage in the extending direction of the carriage guide shaft, and it is possible to change the orientation of the sub-carriage relative to the carriage guide shaft by rotating these eccentric cams. However, the contact area between the notches and the eccentric cams is prone to variations in shape due to manufacturing tolerances. In other words, in conventional recording devices such as the recording device described in Patent Document 1, the orientation of the carriage relative to the guide shaft may become unstable due to manufacturing tolerances of components such as the guide shaft and carriage. [Means for solving the problem]

[0005] The present invention, for solving the above problems, comprises: a head for discharging liquid; a carriage on which the head is provided and which reciprocates in a first direction; a first guide shaft that supports the carriage so as to be able to reciprocate in the first direction; a clamping member disposed between the carriage and the first guide shaft in a second direction intersecting the first direction, having a guide shaft side contact surface formed on the first guide shaft side in the second direction and in contact with the first guide shaft, and a first curved surface formed on the opposite side of the guide shaft side contact surface in the second direction; and a cam member having a second curved surface that slidably fits with the first curved surface, which rotates with respect to the carriage with respect to the first direction as its axis of rotation while engaged with the carriage, wherein the cam member is configured such that, as it rotates, the second curved surface presses the first curved surface in the second direction, thereby changing the distance in the second direction from the position in which the second curved surface presses the first curved surface relative to the axis of rotation, and thereby changing the position of the carriage relative to the clamping member in the second direction. [Brief explanation of the drawing]

[0006] [Figure 1] A schematic side view of the recording device according to Embodiment 1 of the present invention. [Figure 2] A side cross-sectional view showing the area around the carriage of the recording device in Figure 1. [Figure 3]A side cross-sectional view showing the area around the carriage of the recording device in Figure 1, viewed from the opposite direction to Figure 2. [Figure 4] Figure 1 is a perspective view of the recording device carriage, seen from the rear. [Figure 5] A side cross-sectional view showing how the carriage of the recording device in Figure 1 changes its orientation. [Figure 6] Figure 1 is a perspective cross-sectional view showing the attachment point of the clamping member to the carriage of the recording device. [Figure 7] Figure 1 is a perspective cross-sectional view showing the contact area between the clamping member and the cam member of the recording device. [Figure 8] A perspective view of the clamping member of the recording device shown in Figure 1. [Figure 9] A perspective view of the clamping member of the recording device in Figure 1, seen from a different direction than Figure 8. [Figure 10] A schematic diagram showing the area around the carriage of the recording device in Figure 1. [Figure 11] A schematic diagram showing the area around the carriage of the recording device according to Embodiment 2 of the present invention. [Figure 12] A schematic diagram showing the area around the carriage of the recording device according to Embodiment 3 of the present invention. [Modes for carrying out the invention]

[0007] First, the present invention will be described in general terms. A recording device according to a first aspect of the present invention for solving the above problems includes a head for discharging liquid, a carriage on which the head is provided and which reciprocates in a first direction, a first guide shaft that supports the carriage so as to be able to reciprocate in the first direction, a guide shaft side contact surface that contacts the first guide shaft with a guide shaft side contact surface and is positioned between the carriage and the first guide shaft in a second direction intersecting the first direction, and is formed on the first guide shaft side in the second direction and contacts the first guide shaft, and the guide shaft side contact surface in the second direction The device comprises a clamping member having a first curved surface formed on the opposite side, and a cam member having a second curved surface that slidably fits with the first curved surface, and which rotates with respect to the carriage as an axis of rotation in a first direction while engaged with the carriage, wherein the cam member is configured such that as it rotates, the second curved surface presses the first curved surface in a second direction, thereby changing the distance in the second direction from the position where the second curved surface presses the first curved surface relative to the axis of rotation, and thereby changing the position of the carriage relative to the clamping member in the second direction.

[0008] According to this embodiment, the carriage comprises a clamping member that contacts the first guide shaft with a guide shaft-side contact surface and is positioned between the carriage and the first guide shaft in a second direction, and a cam member that contacts the first curved surface of the clamping member and rotates relative to the carriage with the first direction as the axis of rotation while engaged with the carriage. The cam member presses the first curved surface in a second direction with a second curved surface that slidably fits with the first curved surface, and as it rotates, the distance in the second direction between the position where the second curved surface presses the first curved surface relative to the axis of rotation changes, thereby changing the position of the clamping member relative to the carriage in the second direction. In other words, the carriage slidably fits with the first guide shaft via the clamping member and the cam member, with their curved surfaces facing each other. With this configuration, when changing the posture of the carriage, even if there are manufacturing tolerances in the constituent members, the influence of such manufacturing tolerances is reduced. Therefore, it is possible to suppress instability of the carriage's posture relative to the guide shaft due to manufacturing tolerances.

[0009] In the recording apparatus according to the second aspect of the present invention, in the first aspect, a second guide shaft is provided at a position different from the first guide shaft and supports the carriage so as to be reciprocally movable in the first direction. The carriage is characterized in that when the cam member changes the position of the carriage with respect to the sandwiching member, the carriage rotates about the second guide shaft as a rotation axis.

[0010] According to this aspect, a second guide shaft for supporting the carriage so as to be reciprocally movable in the first direction is provided at a position different from the first guide shaft. Therefore, the posture of the carriage can be changed with respect to the first guide shaft with reference to the second guide shaft, and the posture of the carriage can be easily changed and stabilized.

[0011] In the recording apparatus according to the third aspect of the present invention, in the first or second aspect, the curvature of the second curved surface is the same as the curvature of the first curved surface.

[0012] According to this aspect, the curvature of the second curved surface is the same as the curvature of the first curved surface. Therefore, the posture of the carriage can be changed while maintaining the state where the posture of the carriage is stabilized.

[0013] In the recording apparatus according to the fourth aspect of the present invention, in any one of the first to third aspects, the sandwiching member contacts the second curved surface at a fixed position on the first curved surface regardless of the rotation of the cam member.

[0014] According to this aspect, the sandwiching member contacts the second curved surface at a fixed position on the first curved surface regardless of the rotation of the cam member. Therefore, the posture of the carriage can be changed while maintaining the state where the posture of the carriage is stabilized.

[0015] In the recording apparatus according to the fifth aspect of the present invention, in any one of the first to fourth aspects, the sandwiching member is arranged at one place in the central region when the carriage is divided into three equal parts in the first direction.

[0016] According to this aspect, the sandwiching member is disposed at one location in the central region when the carriage is trisected in the first direction. That is, the posture changing portion of the carriage including the sandwiching member and the cam member with respect to the guide axis is at one location in the central region of the carriage. For this reason, compared with a configuration having a plurality of posture changing portions, the posture change becomes easier and more accurate because there is no variation.

[0017] The recording apparatus according to the sixth aspect of the present invention is characterized in that, in any one of the first to fifth aspects, the first curved surface is a concave curved surface and the second curved surface is a convex curved surface.

[0018] According to this aspect, the first curved surface is a concave curved surface and the second curved surface is a convex curved surface. By adopting such a configuration, a smaller and simpler configuration can be easily manufactured compared to a configuration in which the first curved surface is a convex curved surface and the second curved surface is a concave curved surface.

[0019] The recording apparatus according to the seventh aspect of the present invention is characterized in that, in any one of the first to sixth aspects, the pressing direction of the second curved surface with respect to the first curved surface in the second direction is a direction toward the center of gravity position of the carriage in the second direction when viewed from the first direction.

[0020] According to this aspect, the pressing direction of the second curved surface with respect to the first curved surface in the second direction is a direction toward the center of gravity position of the carriage in the second direction when viewed from the first direction. That is, since the cam member is engaged with the carriage, the cam member presses the carriage via the sandwiching member in a direction opposite to the direction in which the posture of the carriage is likely to change due to its own weight. For this reason, it is possible to suppress the posture of the carriage from changing in an unintended direction.

[0021] The recording apparatus according to the eighth aspect of the present invention is characterized in that, in any one of the first to seventh aspects, the first guide shaft is made of a material that is less likely to wear than the sandwiching member.

[0022] According to this embodiment, the first guide shaft is made of a material that is less prone to wear than the clamping member. Although the first guide shaft is more difficult to replace than the clamping member, by making the first guide shaft out of a material that is less prone to wear than the clamping member, wear on the first guide shaft can be suppressed, and the complexity of device maintenance can be reduced.

[0023] A recording device according to the ninth aspect of the present invention is characterized in that, in any one of the first to eighth aspects, the gap member is provided with a canopy portion that protrudes in the second direction and contacts at least one of the first guide shaft and the cam member, vertically above at least one of the first guide shaft and the cam member when viewed from the first direction.

[0024] According to this embodiment, the clamping member is provided with a canopy portion that protrudes in a second direction and contacts at least one of the first guide shaft and the cam member, vertically above at least one of them when viewed from the first direction. This prevents the clamping member from detaching from the device and falling.

[0025] A recording device according to a tenth aspect of the present invention is characterized in that, in the ninth aspect, a projection is provided that protrudes in the second direction at a position vertically below at least one of the first guide shaft and the cam member when viewed from the first direction, and facing the overhang portion.

[0026] According to this embodiment, a projection is provided that protrudes in a second direction at a position vertically below at least one of the first guide shaft and the cam member when viewed from a first direction, and facing the overhang. As a result, at least one of the first guide shaft and the cam member can be sandwiched between the overhang and the projection, and it is particularly effective in preventing the sandwiching member from detaching from the device and falling, or the first guide shaft and the cam member from shifting position relative to the sandwiching member.

[0027] A recording device according to an eleventh aspect of the present invention is characterized in that, in any one of the first to tenth aspects, the interlocking member has a lubricant housing portion for housing a lubricant that improves the sliding properties between the first guide shaft and the contact surface on the guide shaft side.

[0028] According to this embodiment, the clamping member has a lubricant reservoir that contains a lubricant to improve the sliding properties between the guide shaft and the contact surface on the guide shaft side. For this reason, for example, by configuring the device so that the lubricant gradually leaks out from the lubricant reservoir between the guide shaft and the contact surface on the guide shaft side, maintenance of the device can be made easier.

[0029] [Example 1] Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. First, an overview of the recording device 1 according to Embodiment 1 of the present invention will be described with reference to Figure 1. Note that in Figure 1, some components are omitted to make the configuration easier to understand. Here, the X-axis direction in the figure is the horizontal direction and is the direction in which the rotation axis of the holding part 3 that holds the roll body R1 in which the recording medium M is wound into a roll extends, the Y-axis direction is the horizontal direction and is the front-to-back direction of the recording device 1 and is perpendicular to the X-axis direction, and the Z-axis direction is the vertical direction. Furthermore, in the following, the direction of the arrow will be considered the + direction, and the direction opposite to the direction of the arrow will be considered the - direction. For example, the vertically upward direction is the +Z direction, the vertically downward direction is the -Z direction, the front of the recording device 1 is the +Y direction, and the rear of the recording device 1 is the -Y direction.

[0030] The recording device 1 of this embodiment includes a main body 2, and a holding part 3 on the rear side of the main body 2 (in the -Y direction) that holds a roll body R1 in which recording media M are wound in a roll shape. In the recording device 1 of this embodiment, when the recording media M is transported in the so-called transport direction, the first direction A1, the holding part 3, which has a rotation axis along the X-axis direction, rotates in the rotation direction C. When the recording media M is transported in the so-called reverse transport direction, the second direction A2, which is the opposite direction to the first direction A1, the holding part 3, which has a rotation axis along the X-axis direction, rotates in the opposite direction to the rotation direction C. In this embodiment, a roll body R1 is used in which the recording surface is to be recorded on is wound outwards. However, if a roll body R1 is used in which the recording surface is wound inwards, the holding part 3 can rotate in the opposite direction to the rotation direction C to feed out the recording media M from the roll body R1.

[0031] Furthermore, the recording device 1 of this embodiment includes a transport path for the recording medium M, consisting of a media support section 4, a media support section 10, and a media support section 11, etc. The recording device 1 also includes a transport section for transporting the recording medium M in the first direction A1 and the second direction A2 along the transport path, consisting of a transport roller pair 7, which is a drive roller 5 and a driven roller 6. In this embodiment of the recording device 1, the drive roller 5 is composed of a roller that extends in the width direction B intersecting the first direction A1 and the second direction A2, and the driven rollers 6 are arranged in a row in the width direction B relative to the drive roller 5 at a position opposite the drive roller 5. However, there are no particular limitations on the configuration of the transport section.

[0032] Furthermore, the recording device 1 of this embodiment includes a head 8, which serves as a recording unit and has multiple nozzles positioned opposite the media support unit 10, from which ink is ejected for recording, and a carriage 9 on which the head 8 is mounted and which is capable of reciprocating movement in the width direction B. The carriage 9 of this embodiment is configured to change its orientation relative to the main body 2. In the recording device 1 of this embodiment, the first direction A1 at the position opposite the head 8 on the media support unit 10 is the +Y direction and the second direction A2 is the -Y direction, the width direction B, which is the direction of movement of the head 8, is along the X-axis direction, and the ink ejection direction is the -Z direction.

[0033] With the above configuration, the head 8 can record by ejecting ink from a nozzle (not shown) onto the transported recording medium M while reciprocating in the width direction B, which is a direction intersecting the first direction A1 and the second direction A2. The recording device 1 of this embodiment can form a desired image on the recording medium M by repeatedly transporting the recording medium M in the first direction A1 at a predetermined transport amount, and ejecting ink while moving the head 8 in the width direction B with the recording medium M stopped.

[0034] Furthermore, a heating unit 14 is provided at a position opposite the media support unit 11. In this embodiment, the heating unit 14 is an infrared heater that irradiates the conveyed recording medium M with infrared rays. However, there are no particular limitations on the configuration of the heating unit 14. For example, it can be a nichrome wire heater built into the media support unit 11.

[0035] Furthermore, a guide bar 15 is provided downstream of the media support section 11 in the transport direction A, with a contact portion with the recording medium M extending in the width direction B, enabling the application of desired tension to the recording medium M. However, a configuration without the guide bar 15 is also possible.

[0036] Furthermore, downstream of the guide bar 15 in the transport direction A, a winding shaft 16 is provided that winds the recording medium M being transported in the transport direction A into a roll body R2. In this embodiment of the recording device 1, the holding unit 3 and the winding shaft 16 have the same configuration and are configured to support the paper tube, which is the rotation center of the roll body R1 and the roll body R2, and to rotate the paper tube.

[0037] As described above, the recording device 1 of this embodiment is configured to allow the attitude of the carriage 9 to be changed. Next, the carriage 9 and the carriage 9 attitude changing mechanism will be described with reference to Figures 2 to 10.

[0038] As shown in Figures 2 and 3, the recording device 1 of this embodiment includes a first guide shaft 13 and a second guide shaft 12, both extending in the width direction B, inside the main body 2. The first guide shaft 13 is a sub-shaft, and the second guide shaft 12 is a main shaft. The carriage 9 is configured to change its orientation relative to the main body 2 by changing its position relative to the first guide shaft 13, which is a sub-shaft, thereby rotating the second guide shaft 12, which is the main shaft, as the pivot axis.

[0039] As described above, the recording device 1 of this embodiment includes a head 8 that ejects liquid ink, a carriage 9 on which the head 8 is mounted and which reciprocates in the width direction B (X-axis direction) as a first direction, and a first guide shaft 13 that supports the carriage 9 so as to be able to reciprocate in the width direction B. Furthermore, as shown in Figures 2 to 7, the device includes a clamping member 20 and a cam member 30 as a mechanism for changing the attitude of the carriage 9.

[0040] Here, as shown in Figures 2 and 5, the clamping member 20 contacts the first guide shaft 13 at its guide shaft-side contact surface 21 and is positioned between the carriage 9 and the first guide shaft 13 in the Y-axis direction, which is a second direction intersecting the width direction B. Also, as shown in Figures 2 and 5, the cam member 30 contacts the first curved surface 22 of the clamping member 20 on the opposite side in the Y-axis direction from the guide shaft-side contact surface 21 and is configured to rotate relative to the carriage 9 with the width direction B as the axis of rotation 33 while engaged with the carriage 9.

[0041] More specifically, as shown in Figure 5, the cam member 30 presses the first curved surface 22 in the +Y direction with a second curved surface 32 that slidably fits with the first curved surface 22. As it rotates, the distance L in the Y-axis direction of the position where the second curved surface 32 presses the first curved surface 22 relative to the rotation axis 33 changes, thereby changing the position of the carriage 9 relative to the gap member 20 and the first guide shaft 13 in the Y-axis direction. In other words, the carriage 9 slidably fits with the first guide shaft 13 via the gap member 20 and the cam member 30, with their curved surfaces facing each other. The recording device 1 of this embodiment has such a configuration that when changing the posture of the carriage 9, it is less susceptible to the influence of manufacturing tolerances in the constituent members. Therefore, the recording device 1 of this embodiment can suppress the instability of the posture of the carriage 9 relative to the first guide shaft 13 and the second guide shaft 12 due to manufacturing tolerances.

[0042] In this embodiment, the recording device 1 includes a fan-shaped portion 31 that indicates the orientation of the cam member 30, as shown in Figures 3 and 5, and the main body 2 is provided with a memory forming portion 17, as shown in Figure 3. Therefore, the user can easily adjust the orientation of the cam member 30 by rotating the fan-shaped portion 31, and can easily understand the orientation of the cam member 30 by reading the memory in the memory forming portion 17. The left side of Figure 5 shows the orientation of the cam member 30 where the distance L is longest and the fan-shaped portion 31 is tilted furthest to the +Y direction, and the carriage 9 is closest to the first guide axis 13. The center side of Figure 5 shows the initial orientation of the cam member 30 where the distance L is shorter than in the left side of Figure 5 and the fan-shaped portion 31 is not tilted to either the +Y or -Y direction, and the carriage 9 is further away from the first guide axis 13 than in the left side of Figure 5. The right-hand diagram of Figure 5 shows the position of the cam member 30 where the distance L is shortest and the fan-shaped portion 31 is tilted most towards the -Y direction, and the carriage 9 is furthest away from the first guide shaft 13.

[0043] As described above, the recording device 1 of this embodiment is provided with a second guide shaft 12 located at a different position from the first guide shaft 13, which supports the carriage 9 so that it can reciprocate in the width direction B. The carriage 9 rotates around the second guide shaft 12 as the pivot axis, as the cam member 30 changes the position of the carriage 9 relative to the clamping member 20. Therefore, the recording device 1 of this embodiment can change the posture of the carriage 9 relative to the first guide shaft 13 with respect to the second guide shaft 12, making it easy to change the posture of the carriage 9 and stabilizing its posture.

[0044] In this embodiment, the recording device 1 is configured such that the curvature of the second curved surface 32 is the same as the curvature of the first curved surface 22. Therefore, the recording device 1 in this embodiment can change the orientation of the carriage 9 while maintaining a stable orientation of the carriage 9. Note that "the curvature of the second curved surface 32 is the same as the curvature of the first curved surface 22" does not mean that they are exactly the same, but rather that they are substantially the same. For example, it is sufficient that manufacturing tolerances are allowed and the orientation of the carriage 9 can be changed while maintaining a stable orientation of the carriage 9 without any rattle or looseness.

[0045] Furthermore, the contact surface 21 on the guide shaft side is configured to have the same curvature as the first guide shaft 13. Therefore, in this embodiment, the recording device 1 suppresses rattling of the carriage 9 relative to the first guide shaft 13 as the carriage 9 reciprocates in the width direction B. Note that "same curvature" here does not mean exactly the same, but rather that it should be substantially the same.

[0046] Furthermore, in the recording device 1 of this embodiment, the clamping member 20 is configured to contact the second curved surface 32 at a fixed position on the first curved surface 22, regardless of the rotation of the cam member 30. Therefore, the recording device 1 of this embodiment can change the posture of the carriage 9 while maintaining a stable posture of the carriage 9. Note that "contacting the second curved surface 32 at a fixed position on the first curved surface 22" does not mean the exact same position, but rather that it is substantially a fixed position. For example, even if there is some movement in the contact position, it is sufficient if the posture of the carriage 9 can be changed while maintaining a stable posture of the carriage 9 without any rattling or other issues.

[0047] Furthermore, as shown in Figure 4, in the recording device 1 of this embodiment, the clamping member 20 is positioned in one location in the central region S2 of the region S1, region S2, and region S3 when the carriage is divided into three equal parts in the width direction B. In other words, in the recording device 1 of this embodiment, the attitude changing section 18 of the carriage 9, which consists of the clamping member 20 and the cam member 30, is located in one location in the central region of the carriage 9. For this reason, the recording device 1 of this embodiment becomes easier to change the attitude of and more accurate due to the absence of variations, compared to a configuration with multiple attitude changing sections 18.

[0048] In the recording device 1 of this embodiment, the first guide shaft 13 and the second guide shaft 12 are made of metal, and the gap member 20 that contacts the first guide shaft 13 is made of resin. Thus, it is preferable that the first guide shaft 13 is made of a material that is less prone to wear than the gap member 20. Although the first guide shaft 13 is more difficult to replace than the gap member 20, by making the first guide shaft 13 of a material that is less prone to wear than the gap member 20, wear on the first guide shaft 13 can be suppressed, and the complexity of device maintenance can be reduced.

[0049] Furthermore, in the recording device 1 of this embodiment, as shown in Figures 7 to 9, the clamping member 20 is provided with a canopy portion 23A and a canopy portion 23B. In this way, it is preferable that the clamping member 20 is provided with a canopy portion 23 that protrudes in the Y-axis direction and contacts at least one of the first guide shaft 13 and the cam member 30, vertically above at least one of them when viewed from the width direction B. This configuration helps to prevent the clamping member 20 from detaching from the device and falling. In this embodiment, the canopy portion 23 is provided vertically above both the first guide shaft 13 and the cam member 30, but it may be provided on only one of them.

[0050] Furthermore, in the recording device 1 of this embodiment, as shown in Figures 7 to 9, a protrusion 26 is provided on the clamping member 20. In this way, it is preferable that the protrusion 26, which protrudes in the Y-axis direction, is provided at a position that is vertically below at least one of the first guide shaft 13 and the cam member 30 when viewed from the width direction B, and that faces the eaves portion 23. With this configuration, at least one of the first guide shaft 13 and the cam member 30 can be clamped from above and below by the eaves portion 23 and the protrusion 26, which is particularly effective in preventing the clamping member 20 from detaching from the device and falling, or the first guide shaft 13 and the cam member 30 from shifting position relative to the clamping member 20. In this embodiment, the protrusion 26 is provided only at a position facing the eaves portion 23B, but the protrusion 26 may be provided only at a position facing the eaves portion 23A, or the protrusion 26 may be provided at a position facing both the eaves portion 23A and the eaves portion 23B.

[0051] In this embodiment, the recording device 1 is equipped with a cap portion (not shown) as a maintenance section for the head 8. When the head 8 is capped by the cap portion, the posture of the carriage 9 changes. At this time, a gap may be created in the Y-axis direction between the clamping member 20 and the first guide shaft 13 and the cam member 30. However, by providing the protruding portion 26 and the overhang portion 23, it is possible to particularly effectively suppress the clamping member 20 from detaching from the device and falling before and after the head 8 is capped by the cap portion.

[0052] Furthermore, in the recording device 1 of this embodiment, as shown in Figures 7 and 8, the clamping member 20 has a lubricant storage section 24 that houses a lubricant to improve the sliding properties between the first guide shaft 13 and the guide shaft side contact surface 21. The recording device 1 of this embodiment is configured in such a way that lubricant gradually leaks out from the lubricant storage section 24 between the first guide shaft 13 and the guide shaft side contact surface 21. Also, as will be described later, the clamping member 20 is detachable and can be removed to replenish the lubricant, making maintenance of the device easier.

[0053] Furthermore, in the recording device 1 of this embodiment, as shown in Figure 6 which illustrates the attachment portion 19 of the clamping member 20 to the carriage 9, a snap-fit ​​structure 25 is provided on the clamping member 20. Specifically, the carriage 9 is provided with a hole 40 through which the clamping member can pass from the -Y direction to the +Y direction and which has an inward-facing projection. The snap-fit ​​structure 25 is provided with an engaging portion 25A that can pass through the hole 40 and engages with the projection of the hole 40 when the clamping member 20 is moved in the -Y direction after passing through the hole 40. With this configuration, the clamping member 20 can move within a desired range relative to the carriage 9 in the Y-axis direction and can be easily attached to and detached from the carriage 9.

[0054] Here, as shown in Figure 10, the attitude changing section 18 is located on the -Y side with respect to the center of gravity 60 of the carriage 9. The cam member 30 presses the clamping member 20 toward the +Y side. In other words, the direction of pressure of the second curved surface 32 relative to the first curved surface 22 in the Y-axis direction is the +Y direction toward the center of gravity 60 of the carriage 9 when viewed from the width direction B as shown in Figure 10. That is, in the recording device 1 of this embodiment, since the cam member 30 is engaged with the carriage 9, the cam member 30 presses the carriage 9 via the clamping member 20 in the opposite direction (-Y direction in the Y-axis direction) to the direction in which the attitude of the carriage 9 is likely to change due to its own weight (the +Y direction in the Y-axis direction). For this reason, the recording device 1 of this embodiment can suppress the attitude of the carriage 9 from changing in an unintended direction. However, the device is not limited to this configuration.

[0055] [Example 2] The recording device 1 of Example 2 will be described below with reference to Figure 11. Figure 11 corresponds to Figure 10 in the recording device 1 of Example 1. Furthermore, the recording device 1 of this example is the same as the recording device 1 of Example 1, except for the configuration described below, and therefore has the same characteristics as the recording device 1 of Example 1. Therefore, in Figure 11, components common to both Example 1 and Example 1 are indicated by the same reference numerals, and detailed explanations are omitted.

[0056] As described above, in the recording device 1 of Embodiment 1, the pressing direction of the second curved surface 32 against the first curved surface 22 in the Y-axis direction was the +Y direction toward the center of gravity position 60 of the carriage 9 when viewed from the width direction B, as shown in Figure 10. On the other hand, in the recording device 1 of this embodiment, the pressing direction of the second curved surface 32 against the first curved surface 22 in the Y-axis direction is the -Y direction, which is the opposite direction toward the center of gravity position 60 of the carriage 9 when viewed from the width direction B, as shown in Figure 11. With this configuration, for example, the thickness of the carriage 9 in the Y-axis direction can be reduced, making it possible to miniaturize the carriage 9.

[0057] Furthermore, in the recording device 1 of Example 1 and the recording device 1 of this embodiment, the first curved surface 22 is a concave surface, and the second curved surface 32 is a convex surface. With this configuration, a smaller and simpler device can be easily manufactured than one in which the first curved surface 22 is a convex surface and the second curved surface 32 is a concave surface. However, the device is not limited to this configuration.

[0058] [Example 3] The recording device 1 of Example 3 will be described below with reference to Figure 12. Figure 12 corresponds to Figure 10 in the recording device 1 of Example 1. Furthermore, the recording device 1 of this example is the same as the recording device 1 of Examples 1 and 2, except for the configuration described below, and therefore has the same characteristics as the recording device 1 of Examples 1 and 2. In Figure 12, components common to Examples 1 and 2 are indicated by the same reference numerals, and detailed explanations are omitted.

[0059] As described above, in the recording device 1 of Examples 1 and 2, as shown in Figures 10 and 11, the first curved surface 22 was a concave surface and the second curved surface 32 was a convex surface. On the other hand, in the recording device 1 of this embodiment, as shown in Figure 12, the first curved surface 22 is a convex surface and the second curved surface 32 is a concave surface. Thus, the present invention makes it possible to configure the gap member 20 and the cam member 30 in various shapes.

[0060] The present invention is not limited to the embodiments described above, and can be realized in various configurations without departing from its spirit. Furthermore, the technical features in the embodiments corresponding to the technical features in each embodiment described in the summary of the invention can be replaced or combined as appropriate in order to solve some or all of the above-described problems, or to achieve some or all of the above-described effects. In addition, if a technical feature is not described as essential in this specification, it can be deleted as appropriate. [Explanation of symbols]

[0061] 1...Recording device, 2...Main body, 3...Holding part, 4...Media support part, 5...Drive roller, 6...Driven roller, 7...Transport roller pair, 8...Head, 9...Carriage, 10...Media support part, 11...Media support part, 12...Second guide shaft, 13...First guide shaft, 14...Heating part, 15...Guide bar, 16...Winding shaft, 17...Memory forming part, 18...Position changing part, 19...Mounting part, 20...Clamping member, 2 1... Guide shaft side contact surface, 22... First curved surface, 23... Overhang, 23A... Overhang, 23B... Overhang, 24... Lubricant storage part, 25... Snap-fit ​​structure part, 25A... Engaging part, 26... Protrusion, 30... Cam member, 31... Fan-shaped part, 32... Second curved surface, 33... Rotation axis, 40... Hole, 60... Center of gravity position, M... Recording medium, L... Distance, R1... Roll body, R2... Roll body, S1... Area, S2... Area, S3... Area

Claims

1. A head that dispenses liquid, A carriage having the aforementioned head that moves back and forth in a first direction, A first guide shaft that supports the carriage so that it can reciprocate in the first direction, A clamping member is positioned between the carriage and the first guide shaft in a second direction intersecting the first direction, and has a guide shaft-side contact surface formed on the first guide shaft side in the second direction and in contact with the first guide shaft, and a first curved surface formed on the opposite side of the guide shaft-side contact surface in the second direction, A cam member having a second curved surface that slidably fits with the first curved surface, and which rotates with respect to the carriage with respect to the carriage as an axis of rotation in the first direction when engaged with the carriage, Equipped with, The cam member is configured such that, as it rotates, the second curved surface presses the first curved surface in the second direction, thereby changing the distance in the second direction between the position where the second curved surface presses the first curved surface relative to the rotation axis, and thus changing the position of the carriage relative to the gap member in the second direction. A recording device characterized in that the contact surface on the guide shaft side does not displace with respect to the first guide shaft.

2. In the recording device described in Claim 1, A recording device characterized in that the curvature of the contact surface on the guide shaft side is the same as the curvature of the first guide shaft.

3. In the recording device described in claim 1 or 2, A second guide shaft is provided at a position different from the first guide shaft and supports the carriage so that it can reciprocate in the first direction, The recording device is characterized in that the carriage rotates with respect to the second guide shaft as the pivot axis by the cam member changing the position of the carriage relative to the clamping member.

4. In a recording device according to any one of claims 1 to 3, A recording device characterized in that the curvature of the second surface is the same as the curvature of the first surface.

5. In a recording device according to any one of claims 1 to 4, A recording device characterized in that the gapping member contacts the second curved surface at a fixed position on the first curved surface, regardless of the rotation of the cam member.

6. In a recording device according to any one of claims 1 to 5, The recording device is characterized in that the gap member is positioned at one location in the central region when the carriage is divided into three equal parts in the first direction.

7. In a recording device according to any one of claims 1 to 6, A recording device characterized in that the first curved surface is a concave surface and the second curved surface is a convex surface.

8. In a recording device according to any one of claims 1 to 7, A recording device characterized in that the pressing direction of the second curved surface relative to the first curved surface in the second direction is toward the center of gravity of the carriage in the second direction when viewed from the first direction.

9. In a recording device according to any one of claims 1 to 8, A recording device characterized in that the first guide shaft is made of a material that is less prone to wear than the gapping member.

10. In a recording device according to any one of claims 1 to 9, The recording device is characterized in that the gapping member is provided with a canopy portion that protrudes in the second direction and contacts at least one of the first guide shaft and the cam member, vertically above at least one of the first guide shaft and the cam member when viewed from the first direction.

11. In the recording device described in claim 10, A recording device characterized in that a projection is provided that protrudes in the second direction at a position vertically below at least one of the first guide shaft and the cam member when viewed from the first direction, and facing the overhang portion.

12. In a recording device according to any one of claims 1 to 11, The recording device is characterized in that the gap member has a lubricant storage portion for storing a lubricant that improves the sliding properties between the first guide shaft and the contact surface on the guide shaft side.

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