JP6873747B2 - Printing device and carriage device - Google Patents

Description

The present invention relates to a printing device and a carriage device.

In an inkjet printing apparatus, it is required to reduce the deviation of the parallelism in the arrangement direction of the nozzles in the ink ejection head with respect to the sheet conveying direction. Patent Document 1 describes a technique having a mechanism for adjusting the inclination of the nozzle row with respect to the sheet conveying direction. Patent Document 1 describes a technique of changing the adjustment amount for adjusting the inclination of the nozzle row by operating the adjustment lever to reduce the parallel deviation in the nozzle arrangement direction with respect to the transport direction.

Further, although not described in the above-mentioned documents, in an inkjet printing apparatus, there is known a configuration in which a carriage bearing is an open type that easily comes off in a specific direction. By separating the carriage from the guide rail during product transportation, it is possible to prevent the guide shaft from being deformed during transportation due to the weight of the carriage.

Japanese Unexamined Patent Publication No. 2001-129983

If the carriage bearing is an open type, the carriage may move in an unintended direction due to the force applied by the user's lever operation when adjusting the head posture. Then, the user cannot adjust the head posture accurately.

An object of the present invention is to provide a printing device and a carriage device capable of accurately adjusting the head posture.

The printing apparatus according to one aspect of the present invention includes a carriage on which a print head having a nozzle surface is mounted and a guide shaft for guiding the reciprocating movement of the carriage, and the carriage has a carriage structure and the carriage structure. is supported on the body, a head holding member for holding the print head, the inclination of the head holding member with respect to the carriage structure, the lever operation in the direction including vertically adjustable in the nozzle surface and parallel to the plane A printing device including an adjustment mechanism including a lever and a sliding portion provided on the carriage structure and in contact with the upper portion of the guide shaft so as to be separable. The carriage structure is operated by the lever. It is characterized by including a regulating portion that regulates the sliding portion so that the sliding portion does not separate from the guide shaft by more than a predetermined amount.

According to the present invention, it is possible to prevent the carriage from moving in an unintended direction due to the force applied by the user's lever operation when adjusting the head posture. Therefore, the user can accurately adjust the head posture.

It is a schematic perspective view which shows an example of the structure of a printing apparatus. It is sectional drawing which shows an example of the transport path of a sheet. It is a schematic front view which shows an example of a carriage operation area. It is a schematic perspective view which shows an example of the structure of the peripheral part of a carriage. It is a schematic diagram including a carriage, a guide shaft, and a guide rail. It is a schematic top view of the structure including the carriage structure and the head holding member. It is a figure which shows an example of the structure of the adjustment mechanism. It is a figure which shows an example of the structure of the 2nd support part of a carriage. It is a figure which shows the rotation of the carriage about the 1st rotation axis. It is a figure which shows the rotation of the carriage about the 2nd rotation axis. It is a figure which shows an example of another structure of the 2nd support part of a carriage. It is a figure which shows an example of the structure including a finger hook part.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that the following embodiments do not limit the present invention, and not all combinations of features described in the present embodiment are essential for the means for solving the present invention. The same configuration will be described with the same reference numerals.

<Embodiment 1>
FIG. 1 is a perspective view showing an example of the configuration of a printing device (recording device) according to an embodiment of the present invention. The printing device 1 is an inkjet printing device that prints (records) by ejecting ink droplets from an inkjet printing head (recording head).

In the present embodiment, the printing device 1 is a printing device capable of printing an image on a sheet 2 which is a recording medium, and has a print head 4 as a recording means, a paper feeding mechanism (not shown), and a conveying mechanism (not shown). ) Etc. are provided. The printing device 1 of the present embodiment is a serial scanning type printing device in which printing is performed by the print head 4 mounted on the carriage 3. The serial scanning method is a printing method in which printing is performed while alternately performing a printing operation associated with carriage scanning in the main scanning direction X and a sheet transporting operation in the sub scanning direction Y in FIG.

Further, the printing device 1 includes an access cover 5. The access cover 5 is provided so as to be openable and closable with respect to a housing on which the entire printing mechanism such as the carriage 3 described above is mounted. The access cover 5 is in the closed state during the printing operation. When an abnormality such as a jam occurs, the access cover 5 is opened by a user operation. Then, recovery processing for the abnormality is performed. During the printing operation, the access cover 5 is preferably kept in a closed state in order to prevent foreign matter from colliding with the carriage 3 during scanning. Therefore, the printing device 1 is provided with an access cover locking mechanism (not shown), and locks the access cover 5 during the printing operation in order to prevent an unexpected opening operation by the user. On the contrary, the access cover 5 is not locked during the non-printing operation.

Further, the printing device 1 includes an operation panel 6. By operating the operation panel 6, the user can select the paper type and perform various adjustments of the printing device 1.

The operation of the printing apparatus 1 at the time of printing will be described with reference to FIG. FIG. 2 is a cross-sectional view showing an example of a sheet transport path in the printing apparatus 1.

The sheet 2 (sheet-shaped recording medium) drawn out from the roll paper (not shown) is supplied and conveyed toward the platen 7 located at a position facing the print head 4. In the transport path of the sheet 2, a transport roller 8 extending in the main scanning direction (reciprocating movement direction of the carriage) and a plurality of pinch rollers 9 arranged along the main scanning direction are arranged. A transfer motor (not shown) is connected to the transfer roller 8. The transfer roller 8 is a drive-side roller driven by a transfer motor when the sheet 2 is conveyed, and the pinch roller 9 is a driven-side roller that rotates in response to the rotational drive of the transfer roller 8. The transport roller 8 and the pinch roller 9 form a pair of rollers.

When the sheet 2 is conveyed, the transfer roller 8 is rotationally driven with the sheet 2 sandwiched between the roller pairs composed of the transfer roller 8 and the pinch roller 9. Then, the sheet 2 is conveyed on the platen 7 by a predetermined amount in the sub-scanning direction Y.

The operation of the carriage 3 at the time of printing will be described with reference to FIG. FIG. 3 is a schematic front view showing an example of a carriage operating region in the printing apparatus 1 of FIG.

A carriage 3 on which the print head 4 can be mounted is arranged at a position facing the seat 2. Further, a guide shaft 10 is arranged at a position corresponding to the movement range of the carriage 3 so as to guide scanning by the carriage 3 so as to extend in a direction intersecting the transport direction of the seat 2 (that is, the main scanning direction). There is. By sliding along the guide shaft 10, the carriage 3 is supported by the guide shaft 10 and guided by the guide shaft 10 in the main scanning direction to be scanned. Further, the carriage 3 is connected to the carriage motor 13 via a timing belt 12. The carriage 3 is reciprocally scanned by driving the carriage motor 13. By ejecting ink from the ink ejection nozzle 14 (hereinafter, referred to as “nozzle 14”) in the print head 4 during the reciprocating scanning, the printing operation on the sheet 2 is performed.

When the printing operation is performed, the sheet 2 is conveyed in the sub-scanning direction by the predetermined amount described above, and the carriage 3 reciprocates in the main scanning direction while ejecting ink from the nozzle 14 in the print head 4. The operations are performed alternately. By such an operation, an image is printed on the sheet 2.

The configuration of the guide shaft 10 and the guide rail 11 that support the carriage 3 and the configuration of the carriage 3 will be described with reference to FIG. FIG. 4 is a schematic perspective view showing an example of the configuration of the peripheral portion of the carriage 3 including the guide shaft 10.

In the printing device 1, a guide rail 11 is arranged at a position corresponding to the moving range of the carriage 3 so as to extend in parallel with the guide shaft 10. A second support portion 35 is provided at a position close to the guide rail 11 on the carriage 3. When the second support portion 35 comes into contact with the guide rail 11, the carriage 3 is pressed by the guide rail 11. As a result, it is possible to prevent the carriage 3 from rotating around the guide shaft 10. The details of the second support portion 35 will be described later. Both the guide shaft 10 and the guide rail 11 are fastened to the rail support base 17 via a plurality of rail support parts 15 and 16. Further, in order to realize high-quality printing operation, it is desirable that both the guide shaft 10 and the guide rail 11 are adjusted with high accuracy. The cross-sectional shapes of the guide shaft 10 and the guide rail 11 described above are shown in the case of a circle as an example, but the cross-sectional shape is not limited to this shape. For example, the cross-sectional shapes of the guide shaft 10 and the guide rail 11 may be circular or plate-shaped, and are not limited.

The carriage 3 includes a carriage structure 18 (sometimes referred to as a translator) and a head holding member 19. The carriage structure 18 is supported by the guide shaft 10 by the first support portion 30 (one is shown in FIG. 4) provided in the main scanning direction, and is supported by the guide rail 11 by the second support portion 35. It is supported. Further, the first support portion 30 is provided near both ends in the main scanning direction in the carriage structure 18. The carriage structure 18 is supported by the guide shaft 10 so that it can be reciprocally scanned.

The head holding member 19 has a configuration in which the posture with respect to the carriage structure 18 can be adjusted in the direction shown in FIG. 4 (direction of rotation in a plane parallel to the nozzle surface). The print head 4 is attached to the head holding member 19 by the user.

FIG. 5 is a schematic view of the printing device 1 including the carriage 3, the guide shaft 10, and the guide rail 11. The configuration of the bearing 23 with respect to the first support portion 30 of the carriage structure 18 and the guide shaft 10 will be described with reference to FIG.

As shown in FIG. 5, the bearing 23 in the first support portion 30 has an open shape on the lower side in the vertical direction. That is, the first support portion 30 is provided on the carriage structure 18 and comes into contact with the guide shaft 10 on the circumference of the upper semicircle of the guide shaft 10. As described above, the first support portion 30 is configured so that the carriage structure 18 is lifted upward from the guide shaft 10 in the direction of gravity and can be separated from the guide shaft 10. Since the lower side of the bearing 23 in the vertical direction has an open shape, when the carriage 3 is lifted in the vertical direction, the carriage 3 rotates around the second support portion 35 in the rotation direction shown in FIG. 3 can be separated from the guide shaft 10. In addition, when the product is transported, an impact due to an external force may be applied to the product due to the product falling or the like. However, by transporting the product with the carriage 3 separated from the guide shaft 10 as described above, it is possible to suppress the deformation of the guide shaft 10 due to the weight of the carriage 3 or the impact from an external force.

Next, an adjustment mechanism for adjusting the inclination of the head holding member 19 with respect to the carriage structure 18 (that is, the inclination in the nozzle arrangement direction with respect to the sub-scanning direction) will be described with reference to FIG. Hereinafter, adjusting the inclination of the head holding member 19 with respect to the carriage structure 18 is referred to as “adjusting the posture of the head holding member 19”.

FIG. 6 is a schematic top view of a configuration including the carriage structure 18 and the head holding member 19. A print head 4 is mounted on the head holding member 19, and nozzles 14 form a nozzle row on the lower surface of the print head 4 (although the nozzle 14 on the lower surface of the print head 4 is originally invisible in the top view). , Illustrated for explanation). Further, the carriage structure 18 and the head holding member 19 are urged by a spring 22 with the round shaft 20 and the cam member 21 sandwiched between them. By this urging force, the carriage structure 18 supports the head holding member 19. The distance between the carriage structure 18 and the head holding member 19 is unchanged on the left side of FIG. 6, but is variable on the right side depending on the angle of the cam member 21. Therefore, the posture of the head holding member 19 with respect to the carriage structure 18 can be adjusted by changing the angle of the cam member 21. Further, the carriage 3 is provided with an adjustment mechanism (detailed configuration will be described later) that can change the angle of the cam member 21 by applying a force to the user. By performing adjustment using this adjustment mechanism, the head holding member 19 can be adjusted in the direction shown in FIG. 4 (direction of rotation in a plane parallel to the nozzle surface). As a result, the parallelism between the nozzle arrangement direction shown in FIG. 6 and the sheet 2 transport direction can be adjusted with high accuracy.

Next, an operation when the user adjusts the head holding member 19 will be described. The user operates the operation panel 6 when he / she wants to adjust the parallelism between the nozzle arrangement direction and the sheet 2 transport direction (sub-scanning direction). The printing device 1 starts the adjustment operation of the head holding member 19 based on the operation instruction of the operation panel 6. When an adjustment instruction is given on the operation panel 6, the previously unlocked access cover 5 is locked. Then, after the carriage 3 scans to a predetermined adjustment position, the lock of the access cover 5 is released, and the user can open the access cover 5. The adjustment position can be any position. In the present embodiment, the position closer to the operation panel 6 is set as the adjustment position.

FIG. 7 is a diagram showing an example of a configuration including the above-mentioned adjustment mechanism. FIG. 7A shows a front view including the adjusting mechanism 24, and FIG. 7B shows a right side view.

As shown in FIG. 7, the adjusting mechanism 24, which is an example of the adjusting means, includes a lever member 100 that rotates when an operating force is applied in the vertical direction. The rotation shaft 25 of the lever member 100 has the same shaft as the shaft of the cam member 21. By rotating the lever member 100, the cam member 21 rotates, and the posture of the head holding member 19 with respect to the carriage structure 18 can be adjusted. The user can adjust the posture of the head holding member 19 by rotating the lever member 100 by operating the lever that applies a force to the lever member 100 in the vertical direction. In the present embodiment, the adjusting mechanism 24 will be described as including the lever member 100 and the cam member 21, but a configuration including the round shaft 20 and the spring 22 may be referred to as an adjusting mechanism. In FIG. 7A, a scale is shown on the adjusting mechanism 24. The user adjusts the posture of the head holding member 19 by operating the lever member 100 in the vertical direction according to a predetermined scale using the scale as a guide. FIG. 7A shows an example in which the lever member 100 is provided at the end of the carriage 3, but in the present embodiment, the lever member 100 is different from the second support portion 35 of the carriage 3 in the main scanning direction. It may be a position and is not limited to the end. The reason why the lever member 100 and the second support portion 35 of the carriage 3 are configured to be at different positions in the main scanning direction will be described later.

FIG. 8 is a diagram showing an example of a detailed structure around the second support portion 35 of the carriage 3 in the present embodiment. FIG. 8A is a schematic perspective view of the periphery of the second support portion 35 of the carriage, and FIG. 8B is a schematic rear view of the carriage 3. The carriage 3 includes an upper support portion 200 and a lower support portion 201 at substantially the center in the main scanning direction. The second support portion 35 is composed of the upper support portion 200 and the lower support portion 201. The upper support portion 200 and the lower support portion 201 project from the carriage 3 toward the guide rail 11 in a direction intersecting the main scanning direction. When scanning the carriage 3, the upper support portion 200 and the lower support portion 201 function as sliding members with respect to the guide rail 11. Further, in the present embodiment, the carriage 3 (carriage structure 18) includes a first regulation unit 202 and a second regulation unit 203. The first regulating portion 202 projects from the carriage 3 toward the guide rail 11 in a direction intersecting the main scanning direction, and projects downward with respect to the guide rail 11. Further, the first regulating portion 202 is provided on the lever member 100 side with respect to the lower supporting portion 201 in the main scanning direction. The second regulating portion 203 projects from the carriage 3 toward the guide rail 11 in a direction intersecting the main scanning direction, and projects upward with respect to the guide rail 11. Further, the second regulating portion 203 is provided on the side opposite to the lever member 100 with respect to the upper supporting portion 200 in the main scanning direction. Further, as shown in FIG. 8B, both the first regulation unit 202 and the second regulation unit 203 have a predetermined amount of gap between them and the guide rail 11. Note that FIG. 8B shows a state in which the force from the user is not applied to the lever member 100. That is, in a state where no force is applied to the lever member 100 from the user, the first regulating unit 202 and the second regulating unit 203 each have a predetermined amount of gap between the lever member 100 and the guide rail 11. The predetermined amount of the gap (distance between the first regulation unit 202 or the second regulation unit 203 and the guide rail 11) can be an arbitrary amount. The gap is preferably as small as possible, but can be appropriately set in consideration of manufacturing tolerances. Neither the first regulation unit 202 nor the second regulation unit 203 comes into contact with the guide rail 11 when the carriage 3 during the printing operation scans.

Next, the rotation of the carriage 3 will be described with reference to FIG. 9 (a) is a top view of the carriage 3, and FIG. 9 (b) is a rear view of the carriage 3.

In the present embodiment, the carriage structure 18 of the carriage 3 is provided with a first support portion 30-1, 30-2, and a second support portion 35. The first support portions 30-1 and 30-2 are in contact with the guide shaft 10. The second support portion 35 is in contact with the guide rail 11. The first support portion 30-1, the first support portion 30-2, and the second support portion 35 function as sliding members. The first support portion 30-2 may be referred to as a first sliding member, the second support portion 35 may be referred to as a second sliding member, and the first support portion 30-1 may be referred to as a third sliding member.

The carriage 3 has a center of gravity 204 of the carriage 3 and a force point 205 at which the operating force when the lever member 100 is operated is transmitted to the carriage 3. The force point 205 is a bearing included in the carriage 3 that supports the central axis of the lever member 100, for example. A line connecting the first support portion 30-2 located on the opposite side of the lever member 100 with respect to the second support portion 35 in the main scanning direction and the second support portion 35 is the first rotation shaft. It is set to 206. A line passing through the second support portion 35 and parallel to the guide rail 11 is referred to as a second rotation shaft 207. The distance between the center of gravity 204 and the first rotation axis 206 is a1, the distance between the force point 205 and the first rotation axis 206 is b1, the distance between the center of gravity 204 and the second rotation axis 207 is a2, and the force point 205. Let b2 be the distance between and the second rotation shaft 207. A line connecting the first support portion 30-2 located on the opposite side of the lever member 100 with respect to the second support portion 35 in the main scanning direction and the second support portion 35 is the first rotation shaft. Since it is set to 206, a1, a2, b1, and b2 are
(A1 / b1) <(a2 / b2)
It is a relationship of.

Next, an operation of adjusting the posture of the head holding member 19 of the carriage 3 of the present embodiment will be described with reference to FIG. When the user operates the lever member 100 and an upward force in the vertical direction equal to or higher than a constant force F1 is applied to the force point 205, the carriage rotates about the first rotation shaft 206. The constant force F1 means that the carriage weight is M.
F1 = (a1 / b1) × M
It is determined by the formula of.

When the operating force is F1 or more at the force point 205, the first support portion 30-1 floats up from the guide shaft 10 and separates from the guide shaft 10 as the carriage rotates. When the first support portion 30-1 is separated from the guide shaft 10 by a predetermined amount, as shown in FIG. 9B, the first regulation portion 202 and the second regulation portion 203 come into contact with the guide rail 11. The rotational movement of the center of the first rotating shaft 206 is restricted. Hereinafter, the rotation operation of the carriage around the first rotation shaft 206 is referred to as "rotation operation 1". In this way, when the user applies a force to the lever member 100 to adjust the posture of the head holding member 19, even if a force of F1 or more is applied at the force point 205, the first regulating unit 202 and the first The regulation portion 203 of 2 comes into contact with the guide rail. As a result, the rotation operation 1 is regulated so as not to exceed a predetermined amount. Therefore, it is possible to suppress a decrease in operability when adjusting the posture of the head holding member 19.

Next, with reference to FIG. 10, the operation of the carriage 3 after the first regulation unit 202 and the second regulation unit 203 come into contact with the guide rail 11 and the rotation operation 1 is regulated will be described. 10 (a) is a top view of the carriage 3, and FIG. 10 (b) is a side view of the carriage 3. As described above, when the first regulation unit 202 and the second regulation unit 203 come into contact with the guide rail 11, the rotation operation 1 centered on the first rotation shaft 206 is performed by the first regulation unit 202. And the second regulation unit 203. After that, when the force applied to the force point 205 exceeds F2, as shown in FIG. 10B, the rotation operation about the second rotation axis 207 starts, and the first support portion 30-1 and the first support portion 30-1 and The first support portion 30-2 floats up from the guide shaft 10 in the direction of gravity and separates from the guide shaft 10. Hereinafter, the rotational operation in which the support portion is raised around the second rotation shaft 207 is referred to as “rotational operation 2”. At this time, the force F2 is
F2 = (a2 / b2) × M
It is determined by the formula of. As described above, since (a1 / b1) <(a2 / b2) in the present embodiment, the force F2 is larger when the force F1 and the force F2 are compared.

Therefore, when the user applies an operating force upward in the vertical direction to the lever member 100 and switches from the rotational operation 1 to the rotational operation 2, the operating force required to further raise the carriage 3 from the guide shaft 10 and separate it from the guide shaft 10 is large. Become. Therefore, it is preferable in the present embodiment that the operating force of the user is a force F2 or less. The reason is that if the user's operating force is F2 or less, the rotation operation 2 does not occur, and the amount of separation of the carriage 3 from the guide shaft 10 is suppressed to a predetermined amount or less. As a result, deterioration of the operability of the lever member 100 is suppressed, and an accurate adjustment operation by the user becomes possible.

Further, even when the user's operating force is equal to or greater than the force F2, the operation required to further separate the carriage 3 at the position regulated by the rotational operation 1 from the guide shaft 10 at the moment when the rotational operation 2 starts. The power increases. Therefore, the unexpected separation of the carriage 3 from the guide shaft 10 by the operation of the lever member 100 by the user is suppressed. For example, when the user applies a force to the lever member 100 to adjust the posture of the head holding member by the adjusting mechanism 24, if the force applied to the lever member 100 is less than the force F1, the rotation operation 1 does not occur. .. After that, when a force is further applied and the force is F1 or more and less than F2, the rotation operation 1 occurs, but the rotation operation 1 does not exceed a predetermined amount by the first regulation unit 202 and the second regulation unit 203. Is regulated by. After that, when the force applied to the lever member 100 is a force F2 or more, the rotation operation 2 starts. As described above, according to the configuration of the present embodiment, the deterioration of the operability of the lever member 100 is suppressed, and the user can perform an accurate adjustment operation.

In this embodiment, it has been described that the rotation operation 1 occurs before the rotation operation 2. The reason for this is that, as described above, the force F1 and the force F2 required for each rotational operation are F1 <F2. Further, the reason why F1 <F2 is also because the configuration is (a1 / b1) <(a2 / b2) as described above. Therefore, even if a1, a2, b1, and b2 cannot be measured in detail and it cannot be verified whether (a1 / b1) <(a2 / b2), the rotation operation 1 precedes the rotation operation 2. If it occurs in, (a1 / b1) <(a2 / b2) is satisfied.

The rotation operation 1 occurs when the first support portion 30-2 in which the carriage structure 18 and the guide shaft 10 are in contact with each other causes the lever member 100 with respect to the second support portion 35 in the main scanning direction. This is because it is located on the opposite side. In the example shown in FIG. 9A, the first support portion 30-2 has been described by exemplifying the configuration provided at the end portion of the carriage structure 18, but the present invention is not limited thereto. The first support portion 30-2 may be provided on the side opposite to the lever member 100 (on the right side in FIG. 9A) with respect to the second support portion 35 in the main scanning direction in FIG. 9A. ..

In the present embodiment, it is preferable that the lever member 100 is provided at a position different from that of the second support portion 35 in the main scanning direction. This is because if the lever member 100 is provided at the same position as the second support portion 35 in the main scanning direction, the rotation operation 2 will occur without the above-mentioned rotation operation 1.

Further, in the present embodiment, the second support portion 35 is located at the substantially central portion of the carriage structure 18 in the main scanning direction, and the first regulation portion 202 and the second regulation portion 203 are the carriage structure. The form located at the end of 18 has been described as an example. However, it is not limited to this. The first regulating portion 202 may be located below the guide rail 11 on the same side as the lever member 100 with respect to the second supporting portion 35 in the main scanning direction. Further, the second regulating portion 203 may be located above the guide rail 11 on the side opposite to the lever member 100 with respect to the second supporting portion 35 in the scanning direction. Therefore, if these relationships are maintained, the second support unit 35, the first regulation unit 202, and the second regulation unit 203 are located at positions different from those in FIG. 9A in the main scanning direction. It may be provided. Further, the number of regulatory units is not limited to two, and three or more may be provided.

Further, in the present embodiment, the configuration in which two regulation units, the first regulation unit 202 and the second regulation unit 203, are provided has been described. However, it is not limited to this. If at least one of the first regulation unit 202 and the second regulation unit 203 is provided, it is possible to regulate the rotation operation 1.

Further, an auxiliary regulation unit may be provided by providing a predetermined amount of gap at a position facing the regulation unit 202 and the guide rail 11 across the guide rail 11, and a predetermined amount of gap may be provided at a position facing the regulation unit 203 and the guide rail 11 across the guide rail 11. May be provided to provide an auxiliary regulation unit. That is, similar regulation units may be provided above the regulation unit 202 and below the regulation unit 203.

Further, in the present embodiment, the second support portion 35, the first regulation portion 202, and the second regulation portion 203 have been described by taking as an example a form in which they are separate protrusions, but are shown in FIG. As such, these may be integral protrusions.

FIG. 11 is a diagram showing an example in which the second support portion 35, the first regulation portion 202, and the second regulation portion 203 are configured as an integral protrusion 400. The protruding portion 400 projects from the carriage 3 toward the guide rail 11 in a direction intersecting the main scanning direction. The protrusion 400 includes a second support portion 401 that comes into contact with the guide rail 11 and a regulation portion 402 that has a predetermined amount of gap between the guide rail 11 and the guide rail 11.

As described above, according to the configuration of the present embodiment, it is possible to suppress a decrease in operability of the lever member 100 and enable an accurate adjustment operation by the user.

<Embodiment 2>
The second embodiment which further improves the first embodiment and further improves the operability of the user when adjusting the posture of the head holding member 19 will be described below.

FIG. 12 is a schematic side view including the adjusting mechanism 24 in the present embodiment. As shown in FIG. 12, a finger hook portion 501 is provided on the upper portion of the carriage structure 18. Other structures are the same as those in the first embodiment (not shown in FIG. 12). The finger hook portion 501 is provided directly above the guide shaft 10 above the lever member 100. The finger hook portion 501 includes a surface portion curved in the downward convex direction, and the size of the surface is about 20 mm × 20 mm.

When the user adjusts the posture of the head holding member 19 and moves the lever member 100 upward (when a force is applied in a direction including an upward direction in the vertical direction), the user applies the lever member 100 and the finger hook portion 501 to the lever member 100. Put your finger on it. The user hangs the fingertip of the thumb of the right hand on the lever member 100, and hangs the fingertip of the index finger on the finger hook portion 501 to operate the lever up and down. The dimensions and positional relationship facilitate this. Since the user moves the lever member 100 upward while applying a downward force by putting a finger on the finger hook portion 501, the upward force and the downward force cancel each other out, and the carriage 3 has a guide shaft. It becomes difficult to lift from 10. Even if it rises, it will not be separated by more than a predetermined amount due to the action of the regulatory unit described above.

The finger hook portion 501 is preferably located within a range in which the user can put a finger while operating the lever member 100. Therefore, it is preferable that the finger hook portion 501 is located on the same side as the lever member 100 in the main scanning direction. Further, it is preferable that the finger hook portion 501 is arranged above the operating range of the lever member 100.

Further, the lever member 100 may be changed in color from the surrounding parts so that it can be easily understood that the lever member 100 is a place operated by the user. In that case, since the finger hook portion 501 is also a place where the user puts a finger, it is desirable that the color be the same as that of the lever member 100.

Further, the finger hook portion 501 does not need to be provided so as to project above the carriage structure 18. For example, it may be a recess in which a part of the upper surface of the carriage structure 18 is recessed.

30, 30-1, 30-2 First support 35 Second support 100 Lever member 202 First regulation 203 Second regulation 501 Finger hook

Claims (13)

It has a carriage on which a print head having a nozzle surface is mounted, a guide shaft for guiding the reciprocating movement of the carriage, and a guide rail provided in parallel with the guide shaft .
The carriage has a carriage structure and
The head holding member supported by the carriage structure and holding the print head and the inclination of the head holding member with respect to the carriage structure are in-plane parallel to the nozzle surface by lever operation in a direction including a vertical direction. With an adjustment mechanism including an adjustable lever in
A first sliding member provided on the carriage structure and in contact with the upper portion of the guide shaft so as to be separable, and a second sliding member provided in the carriage structure and in contact with the guide rail. It is a printing device that has
The first sliding member is located on the same side as the lever and the first support portion located on the side opposite to the lever with respect to the second sliding member in the moving direction in which the carriage reciprocates. Has a second support and
The carriage structure is a printing apparatus including a regulating portion that regulates the second support portion so as not to be separated from the guide shaft by an amount exceeding a predetermined amount when the lever is operated. It has a carriage on which a print head is mounted, a guide shaft that guides the reciprocating movement of the carriage, and a guide rail provided in parallel with the guide shaft.
The carriage has a carriage structure and
An adjustment mechanism including a head holding member supported by the carriage structure and holding the print head, and a lever capable of adjusting the posture of the head holding member with respect to the carriage structure by lever operation in a direction including a vertical direction. When,
A first sliding member provided on the carriage structure and in contact with the upper portion of the guide shaft so as to be separable, and a second sliding member provided in the carriage structure and in contact with the guide rail. It is a printing device that has
Before SL first sliding member relative to the second sliding member in the moving direction in which the carriage reciprocates, on the same side as the first support portion and said lever which is located on the opposite side of the lever Has a second support located and
The carriage structure is a printing apparatus including a regulating portion that regulates the second support portion so as not to be separated from the guide shaft by an amount exceeding a predetermined amount when the lever is operated. The print according to claim 1 or 2, wherein the first sliding member is between the lever and the second sliding member in a sheet conveying direction intersecting the moving direction. apparatus. Any one of claims 1 to 3, wherein the regulating portion regulates the second supporting portion so as not to be separated from the guide shaft by an amount exceeding a predetermined amount by contacting with the guide rail. The printing device described in. Any one of claims 1 to 4, wherein the restricting portion includes a protruding portion projecting downward from the guide rail between the second sliding member and the lever in the moving direction. The printing apparatus described in the section. Any one of claims 1 to 5, wherein the restricting portion includes a protruding portion that projects upward from the guide rail on the side opposite to the lever with respect to the second sliding member in the moving direction. The printing apparatus according to item 1. The printing apparatus according to any one of claims 1 to 6, wherein the lever is provided at a position different from that of the second sliding member in the moving direction. The printing apparatus according to any one of claims 1 to 7, wherein a gap is formed between the regulating portion and the guide rail in a state where the lever operation is not adjusted. The distance between the first rotating shaft connecting the first support portion and the second sliding member and the center of gravity of the carriage including the carriage structure and the head holding member is defined as a1.
The distance between the second rotating shaft passing through the second sliding member and parallel to the guide rail and the center of gravity is a2.
The distance between the first rotating shaft and the bearing supporting the central axis of the adjusting mechanism is b1.
When the distance between the second rotating shaft and the bearing is b2,
(A1 / b1) <(a2 / b2)
The printing apparatus according to any one of claims 1 to 8, wherein The restricting portion includes a finger hook portion provided on the upper surface of the carriage structure.
The printing apparatus according to claim 1 or 2 , wherein the finger hook portion is provided at a position corresponding to the lever in a moving direction in which the carriage structure reciprocates. The printing apparatus according to claim 10, wherein the finger hook portion is located above the operating range of the lever. The printing apparatus according to any one of claims 1 to 11, wherein the print head is an inkjet print head. It has a carriage on which a head having a nozzle surface is mounted, a guide shaft that guides the reciprocating movement of the carriage, and a guide rail provided in parallel with the guide shaft .
The carriage has a carriage structure and
An adjustment mechanism including a lever that can adjust the inclination of the head with respect to the carriage structure in a plane parallel to the nozzle surface by operating a lever in a direction including a vertical direction.
A first sliding member provided on the carriage structure and in contact with the upper portion of the guide shaft so as to be separable, and a second sliding member provided in the carriage structure and in contact with the guide rail. It is a carriage device that has
The first sliding member is located on the same side as the lever and the first support portion located on the side opposite to the lever with respect to the second sliding member in the moving direction in which the carriage reciprocates. Has a second support and
The carriage structure is a carriage device including a regulating portion that regulates the second support portion so as not to be separated from the guide shaft by an amount exceeding a predetermined amount when the lever is operated.

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