WO2010101034A1 - Carriage unit, liquid discharge recording device, and method of fastening liquid discharge head - Google Patents

Carriage unit, liquid discharge recording device, and method of fastening liquid discharge head Download PDF

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Publication number
WO2010101034A1
WO2010101034A1 PCT/JP2010/052561 JP2010052561W WO2010101034A1 WO 2010101034 A1 WO2010101034 A1 WO 2010101034A1 JP 2010052561 W JP2010052561 W JP 2010052561W WO 2010101034 A1 WO2010101034 A1 WO 2010101034A1
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WO
WIPO (PCT)
Prior art keywords
carriage
liquid ejecting
ejecting head
head
longitudinal direction
Prior art date
Application number
PCT/JP2010/052561
Other languages
French (fr)
Japanese (ja)
Inventor
哲也 村瀬
彰寛 貞木
Original Assignee
エスアイアイ・プリンテック株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by エスアイアイ・プリンテック株式会社 filed Critical エスアイアイ・プリンテック株式会社
Publication of WO2010101034A1 publication Critical patent/WO2010101034A1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01Ink jet
    • B41J2/135Nozzles
    • B41J2/145Arrangement thereof
    • B41J2/15Arrangement thereof for serial printing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01Ink jet
    • B41J2/135Nozzles
    • B41J2/14Structure thereof only for on-demand ink jet heads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J25/00Actions or mechanisms not otherwise provided for
    • B41J25/001Mechanisms for bodily moving print heads or carriages parallel to the paper surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J25/00Actions or mechanisms not otherwise provided for
    • B41J25/304Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2202/00Embodiments of or processes related to ink-jet or thermal heads
    • B41J2202/01Embodiments of or processes related to ink-jet heads
    • B41J2202/14Mounting head into the printer

Definitions

  • the present invention relates to a carriage unit, a liquid jet recording apparatus, and a liquid jet head fixing method.
  • liquid jet recording apparatuses such as printers and fax machines that record liquid images such as ink droplets on recording paper or the like to record images and characters are known.
  • This liquid jet recording apparatus includes a liquid jet head in which a plurality of jet holes for jetting liquid are arranged on a recording surface of a recording medium.
  • the liquid ejecting head is formed in a rectangular shape when viewed from the normal direction of the recording surface of the recording medium, with the arrangement direction of the plurality of ejection holes as the longitudinal direction and the direction orthogonal to the longitudinal direction as the short direction. .
  • a carriage unit is configured with the liquid ejecting head mounted on the carriage, the carriage unit is moved in the lateral direction, and the recording medium is ejected from the liquid ejecting head while transporting the recording medium in the longitudinal direction. Thus, recording is performed on a recording medium.
  • Patent Documents 1 and 2 disclose a fixing structure that locks the liquid ejecting head with respect to the carriage in order to easily and quickly perform the mounting operation of the liquid ejecting head.
  • the present invention has been made in view of the above problems, and provides a carriage unit, a liquid jet recording apparatus, and a method for fixing a liquid jet head that can improve the positioning accuracy of the liquid jet head with respect to the carriage. With the goal.
  • a carriage unit includes a liquid ejecting head in which a plurality of ejection holes for ejecting liquid is arranged on a recording surface of a recording medium, and the liquid ejecting head being fixed.
  • a carriage unit that moves relative to and parallel to the recording surface, wherein the arrangement direction of the plurality of ejection holes in the liquid ejection head is a longitudinal direction, and a direction orthogonal to the longitudinal direction is a short side.
  • a direction perpendicular to the longitudinal direction and the short direction is a height direction, and the carriage is configured to be able to support the liquid ejecting head, and a direction intersecting the longitudinal direction and the short direction.
  • a head support member having a guide groove formed thereon, and a slide member formed with a pin movable along the guide groove and movable along the longitudinal direction;
  • the liquid ejecting head and the carriage come into contact with each other by moving the slide member along the longitudinal direction, and the positioning of the liquid ejecting head in the longitudinal direction on the carriage is performed. Is moved along the guide groove so that the liquid ejecting head is moved along the short direction of the carriage, and the liquid ejecting head is pressed by the first biasing member capable of pressing the liquid ejecting head in the width direction of the carriage.
  • a second urging member that presses the liquid jet head positions the liquid jet head in the carriage in the short direction, and presses the liquid jet head in the height direction of the carriage with respect to the carriage.
  • the liquid ejecting head is pressed against the height direction of the liquid ejecting head in the carriage.
  • the liquid ejecting head is characterized in that it is fixable configured for the carriage.
  • the liquid ejecting head moves in the longitudinal direction, the lateral direction, and the height direction in the carriage with a simple mechanism that moves the slide member that moves the liquid ejecting head with respect to the carriage along the longitudinal direction.
  • Directional positioning is made. Further, by pressing the liquid ejecting head with the first urging member and the second urging member, the liquid ejecting head can be surely guided in the direction of the desired position and held at the desired position. Therefore, the positioning accuracy of the liquid ejecting head with respect to the carriage can be improved.
  • After the liquid ejecting head is attached to the carriage it is not necessary to perform a positioning adjustment operation, so that the production efficiency can be improved.
  • the position reproducibility when the liquid ejecting head is attached / detached is excellent, the recording accuracy to the recording medium can be improved.
  • the carriage unit of the present invention is characterized in that the second urging member is provided at a position corresponding to both sides in the longitudinal direction of the liquid jet head.
  • the second urging member by disposing the second urging member at positions corresponding to both sides in the longitudinal direction of the liquid ejecting head, the second urging member can be pressed with a substantially equal force against the longitudinal direction of the liquid ejecting head, The positioning accuracy can be further improved.
  • the carriage may include a housing portion that houses at least a part of the liquid ejecting head, and one of the liquid ejecting head and the housing portion in the longitudinal direction and the short direction.
  • a first protrusion protruding in the longitudinal direction and a second protrusion protruding in the short direction are formed on the side surface of the liquid ejecting head, and the first protrusion and the second protrusion are connected to the liquid ejecting head and the housing.
  • the liquid ejecting head is configured to be positioned in the longitudinal direction and the lateral direction with respect to the carriage by abutting against the other side surface of the portion.
  • the liquid ejecting head can be accurately positioned.
  • the housing portion may include a restricting portion that can contact the ejecting surface of the liquid ejecting head on which the ejecting hole is formed, and the ejecting surface contacts the restricting portion.
  • the liquid ejecting head is configured to be positioned in the height direction with respect to the carriage by being in contact therewith.
  • the restricting portion formed in the housing portion is positioned in contact with the ejection surface of the liquid ejecting head, the liquid ejecting head can be accurately positioned.
  • a rotation shaft is provided along the short direction of the slide member, a gear portion is formed at least in part, and the rotation shaft is disposed at the rotation center of the gear portion.
  • a rotating member in which a long hole in which the rotation shaft is movable in the longitudinal direction is connected to the head support member, and a gear portion that meshes with the gear portion is along the longitudinal direction.
  • the rotation member that rotates the liquid ejecting head with respect to the carriage is disposed, and the liquid ejecting head can be rotated with respect to the carriage only by moving the slide member along the longitudinal direction. Since it comprised, the liquid ejecting head can be rotated with a simple mechanism. In addition, since the liquid ejecting head is configured to be rotatable with respect to the carriage, maintenance can be performed with the liquid ejecting head raised from the carriage. Therefore, there is no need to perform maintenance after the liquid ejecting head is once moved out of the recording area, and maintenance can be performed efficiently. Further, since it is not necessary to install a maintenance device necessary for maintenance at the side of the recording area, the device width can be reduced.
  • a liquid jet recording apparatus includes any of the carriage units described above, a carriage moving unit that moves the carriage unit, and a recording medium conveyance unit that conveys the recording medium. It is characterized by.
  • the carriage unit in which the liquid ejecting head is accurately positioned with respect to the carriage is provided, the liquid is ejected from the ejection hole of the liquid ejecting head to the recording surface of the recording medium with high accuracy. Is possible. Therefore, it is possible to provide a liquid jet recording apparatus with excellent recording accuracy.
  • the fixing method of the liquid jet head according to the present invention includes a liquid jet head in which a plurality of jet holes for jetting liquid is arranged on a recording surface of a recording medium, and the recording surface in a state where the liquid jet head is fixed.
  • a head support member having a guide groove formed in a direction to be moved, and a pin movable along the guide groove, and a slider movable along the longitudinal direction. And moving the slide member along the longitudinal direction in a state where the liquid ejecting head is supported by the head support member, thereby moving the liquid ejecting head relative to the carriage.
  • the liquid ejecting head is moved in all directions of the longitudinal direction, the lateral direction, and the height direction of the carriage only by moving the slide member that moves the liquid ejecting head with respect to the carriage along the longitudinal direction. Positioning is done. Therefore, the positioning accuracy of the liquid ejecting head with respect to the carriage can be improved. In addition, after the liquid ejecting head is attached to the carriage, it is not necessary to perform a positioning adjustment operation, so that the production efficiency can be improved. In addition, since the position reproducibility when the liquid ejecting head is attached / detached is excellent, the recording accuracy to the recording medium can be improved.
  • a rotation shaft is provided along the short direction of the slide member, a gear portion is formed at least at a part, and the rotation shaft is formed at the rotation center of the gear portion.
  • a rotating member having a long hole in which the rotation shaft is movable in the longitudinal direction is connected to the head support member, and a gear portion meshing with the gear portion is connected to the carriage.
  • a step of rotating the liquid ejecting head with respect to the carriage about the rotation axis, and the carriage and the rotating member abut on each other, and the liquid ejecting head The rotation of the rotary shaft provided on the slide member is moved in the elongated hole by further moving the slide member along the longitudinal direction.
  • the said longitudinal direction fixing process, the said transversal direction fixing process, and the said height direction fixing process are completed because the said slide member moves along the said longitudinal direction.
  • the rotation member that rotates the liquid ejecting head with respect to the carriage is disposed, and the liquid ejecting head can be rotated with respect to the carriage only by moving the slide member along the longitudinal direction. Since it comprised, the liquid ejecting head can be rotated with a simple mechanism. In addition, since the liquid ejecting head is configured to be rotatable with respect to the carriage, maintenance can be performed with the liquid ejecting head raised from the carriage. Therefore, after the maintenance of the liquid ejecting head, the liquid ejecting head is rotated with respect to the carriage simply by moving the slide member along the longitudinal direction, and the slide member is further moved along the longitudinal direction after the rotation is completed.
  • the liquid ejecting head can be fixed at a desired position on the carriage. That is, the liquid ejecting head can be rotated and fixed with a simple structure.
  • the liquid ejecting head can be rotated, it is not necessary to perform maintenance after the liquid ejecting head is once moved out of the recording area, and the maintenance can be performed efficiently. Further, since it is not necessary to install a maintenance device necessary for maintenance at the side of the recording area, the device width can be reduced.
  • the liquid ejecting head is moved in the longitudinal direction, the lateral direction, and the height direction in the carriage by a simple mechanism that moves the slide member that moves the liquid ejecting head with respect to the carriage along the longitudinal direction. Positioning in all directions is performed. Further, by pressing the liquid ejecting head with the first urging member and the second urging member, the liquid ejecting head can be surely guided in the direction of the desired position and held at the desired position. Therefore, the positioning accuracy of the liquid ejecting head with respect to the carriage can be improved. In addition, after the liquid ejecting head is attached to the carriage, it is not necessary to perform a positioning adjustment operation, so that the production efficiency can be improved. In addition, since the position reproducibility when the liquid ejecting head is attached / detached is excellent, the recording accuracy to the recording medium can be improved.
  • FIG. 1 is a perspective view showing a liquid jet recording apparatus in an embodiment of the present invention.
  • FIG. 2 is a perspective view illustrating a liquid ejecting head according to an embodiment of the invention.
  • FIG. 3 is a perspective view illustrating a liquid jet head according to an embodiment of the present invention, and is a perspective view seen from the opposite side of FIG. 2. It is a perspective view of a head chip in an embodiment of the present invention. It is a perspective view which shows the principal part of the carriage unit in embodiment of this invention. It is a perspective view of the rotation fixing mechanism in the embodiment of the present invention. It is a perspective view of the slide arm which is one member of the rotation fixing mechanism in the embodiment of the present invention.
  • FIG. 1 is a perspective view showing a liquid jet recording apparatus.
  • the liquid jet recording apparatus 1 includes a pair of transport units 2 and 3 that transport a recording medium S such as paper, a liquid jet head 4 that ejects ink onto the recording medium S, and supplies ink to the liquid jet head 4.
  • Ink supply means 5 and scanning means 6 for causing the liquid ejecting head 4 to scan in a direction (sub-scanning direction) substantially orthogonal to the conveyance direction (main scanning direction) of the recording medium S are provided.
  • the pair of conveying means 2 and 3 includes grid rollers 20 and 30 extending in the sub-scanning direction, pinch rollers 21 and 31 extending in parallel to the grid rollers 20 and 30, and grid rollers 20 and 30, respectively. And a drive mechanism (not shown) such as a motor for rotating the shaft.
  • the ink supply means 5 includes an ink tank 50 that contains ink, and an ink supply pipe 51 that connects the ink tank 50 and the liquid ejecting head 4.
  • a plurality of ink tanks 50 are provided. Specifically, ink tanks 50Y, 50M, 50C, and 50B of four types of inks of yellow, magenta, cyan, and black are provided side by side.
  • the ink supply pipe 51 is configured by a flexible hose having flexibility that can correspond to the operation of the liquid ejecting head 4 (carriage unit 62).
  • the carriage unit 62 refers to a state where the liquid ejecting head 4 is attached to the carriage 68.
  • the scanning unit 6 includes a pair of guide rails 60 and 61 extending in the sub-scanning direction, a carriage unit 62 slidable along the pair of guide rails 60 and 61, and moving the carriage unit 62 in the sub-scanning direction. And a drive mechanism 63.
  • the drive mechanism 63 rotates a pair of pulleys 64 and 65 disposed between the pair of guide rails 60 and 61, an endless belt 66 wound between the pair of pulleys 64 and 65, and one pulley 64.
  • a drive motor 67 to be driven.
  • the pair of pulleys 64 and 65 are disposed between both end portions of the pair of guide rails 60 and 61, respectively, and are disposed at an interval in the sub-scanning direction.
  • the endless belt 66 is disposed between a pair of guide rails 60 and 61, and a carriage unit 62 is connected to the endless belt.
  • a plurality of liquid ejecting heads 4 are mounted on the carriage unit 62. Specifically, liquid ejecting heads 4Y, 4M, 4C, and 4B of four types of inks of yellow, magenta, cyan, and black are arranged in the sub-scanning direction. It is mounted side by side.
  • the liquid ejecting head 4 is a liquid ejecting head chip (hereinafter simply referred to as “head chip”) that includes a mounting substrate 40 that is a connecting member to the carriage 68 and a nozzle hole 13 that ejects ink toward the recording medium S. ) 41, a flow path substrate 42 that circulates ink to the head chip 41, a base plate 44 that serves as a support portion of each member, and a wiring substrate 45 that controls ink ejection timing and the like. Note that the mounting substrate 40 and the base plate 44 may be separate or integrally formed. A suction tube 39 for sucking ink leaking from the head chip 41 is attached to the mounting substrate 40.
  • head chip liquid ejecting head chip
  • the mounting substrate 40 is formed in a substantially rectangular shape when viewed from the Z direction.
  • a notch is provided in the mounting substrate 40 from the center of the long side to the surface of the base plate 44.
  • a head chip 41 is attached to the inner surface of the notch.
  • the flow path substrate 42 is attached to one surface side of the head chip 41.
  • a flow passage (not shown) for circulating ink is formed inside the flow path substrate 42, and an inflow port 42 a communicating with the flow path is formed on the upper surface of the flow path substrate 42.
  • a pressure adjusting unit 49 that absorbs ink pressure fluctuation is connected to the inflow port 42a.
  • the base plate 44 is erected substantially vertically on the upper surface of the mounting substrate 40, and a wiring substrate 45 is mounted on the surface thereof.
  • a control circuit 45 a that controls the operation of the head chip 41 is formed on the wiring board 45.
  • the wiring substrate 45 and the head chip 41 are electrically connected by a flexible substrate 46.
  • FIG. 4 is a perspective view of the head chip.
  • the head chip 41 includes an ink chamber 10 in which ink is stored, a plurality of channels 17 arranged in parallel by being divided by piezoelectric elements that can be deformed by applying a voltage, and ink droplets toward the recording medium S. And a nozzle hole 13 for discharging water.
  • the head chip 41 is a so-called independent channel type head chip, which comprises a groove where ink is supplied and a groove where ink is not supplied by the slit forming wall 9, and even if conductive ink is used, a short circuit accident occurs. Droplets can be ejected without occurring.
  • the actuator plate 15 is provided with electrodes 15c connected to the flexible substrate 46 along the respective side walls of the grooves 15b.
  • the configuration of the head chip 41 is not limited to this embodiment.
  • the slit forming wall 9 may not be provided, and ink may be supplied to all the grooves formed in the actuator plate.
  • the head chip 41 is a so-called independent channel type head chip, and a nozzle plate 14 in which the nozzle holes 13 are formed and a plurality of piezoelectric elements are arranged in parallel with a plurality of gaps therebetween.
  • the actuator plate 15 in which the channel 17 is formed, the ink chamber plate 16 in which the ink chamber 10 is formed, and the nozzle cap 8 for supporting the nozzle plate 14 are provided.
  • the actuator plate 15 is a rectangular plate made of a piezoelectric material such as lead zirconate titanate (PZT).
  • the head chip 41 is directed downward so that the recording surface of the recording medium S and the nozzle plate 14 of the head chip 41 are arranged in parallel. Is attached.
  • the arrangement direction of the nozzle holes 13 of the head chip 41 is the longitudinal direction, and the direction orthogonal to the longitudinal direction is the short direction. That is, the liquid jet head 4 is formed in a substantially rectangular shape when viewed from the normal direction of the recording surface of the recording medium S.
  • the longitudinal direction of the liquid jet head 4 is referred to as a Y direction
  • the short direction is referred to as an X direction
  • the normal direction (height direction) of the recording surface of the recording medium S is referred to as a Z direction.
  • the liquid jet head 4 matches the longitudinal direction (Y direction) to the main scanning direction and the short side direction (X direction) to the sub scanning direction. It is installed.
  • a plurality of liquid ejecting heads 4 are mounted on the carriage unit 62 at substantially equal intervals in the X direction. Then, the recording medium S is transported in the Y direction, and ink droplets are ejected from the liquid ejecting head 4 while moving the carriage unit 62 in the X direction, thereby recording on the recording medium S. .
  • FIG. 5 is a perspective view of the carriage unit 62 and is a perspective view of the state in which the liquid ejecting head 4 is attached to the base portion 68 a of the carriage 68.
  • the base portion 68a of the carriage 68 is a portion on which the liquid ejecting head 4 is mounted, and is disposed horizontally with the recording surface of the recording medium S. In FIG. 5, only the base portion 68a of the carriage 68 is shown, and the other portions are not shown.
  • the carriage 68 is formed of a metal material such as aluminum alloy or stainless steel.
  • a groove portion 70 is formed in the base portion 68 a of the carriage 68 as a housing portion that can accommodate the mounting substrate 40 of the liquid jet head 4.
  • the groove portion 70 is formed in a substantially rectangular shape that is slightly larger than the liquid jet head 4 when viewed from the Z direction.
  • an opening through which the ink droplet ejected from the liquid ejecting head 4 passes is formed in the approximate center in the plan view of the groove portion 70, and the nozzle plate 14 of the liquid ejecting head 4 is formed at the end portion in the + Y direction of the groove portion 70.
  • a restricting portion 55 (see FIG. 14) is formed.
  • first protrusions 47 protruding in the + Y direction are formed on the side surface in the + Y direction of the mounting substrate 40 of the liquid jet head 4.
  • the first protrusion 47 is in contact with the side surface in the + Y direction of the groove portion 70 so that the liquid ejecting head 4 is positioned in the Y direction with respect to the carriage 68.
  • a pair of second protrusions 48 a and 48 b projecting in the + X direction are formed on the side surface in the + X direction of the mounting substrate 40 of the liquid jet head 4.
  • one second protrusion 48 a is formed at a position near the ⁇ Y direction side of the mounting substrate 40
  • the other second protrusion 48 b is formed at a position near the + Y direction side of the mounting substrate 40.
  • the pair of second protrusions 48 a and 48 b abut on the side surface in the + X direction of the groove 70, so that the liquid ejecting head 4 is positioned in the X direction with respect to the carriage 68.
  • a recess 69 is formed on the upper surface of the base portion 68 a of the carriage 68, and a rotation fixing mechanism 80 is provided in the recess 69.
  • the rotation fixing mechanism 80 is movable in the X direction and the Y direction along with the slide arm 71 movable in the Y direction, the slide plate 81 movable in the Y direction together with the slide arm 71, and the movement of the slide plate 81.
  • the concave portion 69 is formed to have a size connecting to the groove portion 70 from the end portion on the ⁇ Y direction side of the base portion 68a.
  • a pair of racks 72 and 73 are provided on the upper surface 69a of the recess 69 along the Y direction.
  • the pair of racks 72 and 73 is formed with a rack gear 74 that meshes with a gear unit 100 described later. Further, the pair of racks 72 and 73 are arranged in parallel with an interval of approximately the same size as the width of the slide arm 71.
  • a screw hole (not shown) is formed at a substantially intermediate position between the pair of racks 72 and 73 in the X direction and the Y direction, and by screwing the holding screw 75 in a state where the slide arm 71 is arranged, The slide arm 71 can be supported so as to be movable in the Y direction.
  • the slide arm 71 is erected at both ends in the X direction at the flat plate portion 76 that is in contact with the upper surface 69 a of the concave portion 69 and the + Y direction end portion of the flat plate portion 76, and the rotation shaft 84 is provided.
  • Rotating shaft support portions 78 and 78 each having a through-hole 77 to be inserted are provided.
  • the flat plate portion 76 is formed with a long hole 79 opened along the Y direction.
  • the slide arm 71 can be supported so as to be movable in the Y direction by inserting a press screw 75 into the long hole 79 and screwing the press screw 75 into the screw hole of the carriage 68.
  • the slide plate 81 is erected at both ends in the X direction at the flat plate portion 85 that comes into contact with the flat plate portion 101 of the rotating arm 83 described later, and the ⁇ Y direction end portion of the flat plate portion 85.
  • Rotation shaft support portions 87, 87 each having a through hole 86 through which the rotation shaft 84 is inserted.
  • the flat plate portion 85 is formed with a screw hole (not shown) into which two holding screws 88 and 89 can be screwed at positions spaced apart from each other in the X direction and the Y direction in plan view. That is, the straight line connecting the two holding screws 88 and 89 is configured to intersect the X direction and the Y direction.
  • a plate-like restricting portion 90 projecting in the + X direction is formed on the side surface of the flat plate portion 85 on the + X side
  • a plate-like restricting portion 91 projecting in the ⁇ X direction is formed on the side surface on the ⁇ X side.
  • the restricting portions 90 and 91 are pressed from the ⁇ Z direction to the + Z direction by being fitted to the leaf spring members 92 and 92 provided in the recess 69, thereby positioning the liquid ejecting head 4 in the Z direction.
  • the restricting portions 90 and 91 and the leaf spring members 92 and 92 are each formed with a tapered portion to facilitate fitting.
  • the head fixing plate 82 includes a flat plate portion 93 that is slidably contacted with the flat plate portion 85 of the slide plate 81, a flat plate portion 94 that is disposed in the + Y direction of the flat plate portion 93, and And a connecting portion 97 that connects the flat plate portion 93 and the flat plate portion 94.
  • the flat plate portion 93 has a long hole 95 in which the holding screws 88 and 89 can slide.
  • the long hole 95 has an opening extending in the same direction as a straight line connecting the two holding screws 88 and 89. That is, when the slide plate 81 is moved in the Y direction, the head fixing plate 82 is movable in the X direction and the Y direction (described in detail later).
  • the flat plate portion 94 is formed with a pair of screw holes 96 extending in the Z direction.
  • the screw holes 96, 96 are formed at positions corresponding to the screw insertion holes 43, 43 (see FIG. 2) of the mounting substrate 40 of the liquid jet head 4, and the screws 38, 38 (see FIG. 5) are connected to the screw insertion holes 43, 43.
  • the liquid ejecting head 4 and the head fixing plate 82 can be connected by being threaded through the screw holes 96 and 96.
  • the pivot arm 83 is provided upright at both ends in the X direction at the ⁇ Y direction end of the flat plate portion 101 and the flat plate portion 101 configured to be able to come into contact with and separate from the recess 69.
  • And rotation shaft guide portions 99, 99 each having a long hole 98, 98 through which the rotation shaft 84 is inserted.
  • the long hole 98 is opened along the Y direction in a state where the flat plate portion 101 is in contact with the recess 69. That is, the rotation shaft 84 inserted through the long hole 98 can move along the Y direction.
  • the rotation shaft 84 is configured to be the rotation center of the rotation arm 83 when the rotation shaft 84 is positioned at the end of the elongated hole 98 in the ⁇ Y direction.
  • a gear portion 100 that meshes with a rack gear 74 formed on the racks 72 and 73 is formed on a part of the outer periphery of the rotation shaft guide portion 99.
  • the rotation shaft 84 has the through-holes 86, 86 of the rotation shaft support portions 87, 87 of the slide plate 81 arranged on the inside and It is inserted into the through-holes 77, 77 of the rotation shaft support portions 78, 78 of the slide arm 71 arranged on the outer side in the X direction of the dynamic shaft support portions 87, 87, and further outside of the rotation shaft support portions 78, 78 in the X direction. It is arranged in a state where it is inserted through the long holes 98, 98 of the rotation shaft guide portions 99, 99 of the rotation arm 83 disposed in the.
  • the nozzle plate 14 of the liquid ejecting head 4 is oriented in the horizontal direction by holding the flat plate portion 101 of the rotating arm 83 approximately 90 ° with respect to the base portion 68a. .
  • maintenance of the liquid jet head 4 is performed using a maintenance device (not shown).
  • the slide arm 71 is pressed in the + Y direction (arrow direction) to start the movement in order to fix the liquid ejecting head 4 to the base portion 68a.
  • a driving device such as a motor (not shown) is used.
  • the gear unit 100 of the rotating arm 83 and the rack gear 74 provided on the base unit 68a mesh with each other, and the gear unit 100 rotates.
  • the gear unit 100 rotates, the slide plate 81 supported by the rotating arm 83, the head fixing plate 82, and the liquid ejecting head 4 connected to the head fixing plate 82 also rotate simultaneously.
  • the gear unit 100 rotates, the rotating arm 83 moves on the rack gear 74 in the + Y direction.
  • the rotation of the rotation arm 83 is completed when the flat plate portion 101 of the rotation arm 83 comes into contact with the upper surface 69a of the recess 69 of the base portion 68a. At this time, the nozzle plate 14 of the liquid jet head 4 is held at a position substantially parallel to the recording surface of the recording medium S.
  • FIG. 14 is a perspective view of the state of FIG. 13 viewed from another viewpoint.
  • the liquid ejecting head 4 is not yet fixed to the base portion 68a. Therefore, in order to fix the liquid ejecting head 4 to the base portion 68a, the slide arm 71 is further moved in the + Y direction.
  • the head fixing plate 82 is movable in the X direction and the Y direction. Specifically, since the direction of the long axis of the long hole 95 is formed in a direction inclined from the + Y direction to the predetermined angle ⁇ X direction side, the head fixing plate 82 is moved when the press screws 88 and 89 are moved in the + Y direction. Can move in the + X direction and the + Y direction.
  • the liquid ejecting head 4 is first moved in the + Y direction. Then, the ⁇ X side end 40a at the + Y side tip of the mounting substrate 40 of the liquid ejecting head 4 comes into contact with the leaf spring member 102 provided on the base portion 68a. The leaf spring member 102 urges the mounting substrate 40 of the liquid ejecting head 4 in the + X direction.
  • the slide arm 71 when the slide arm 71 is moved in the + Y direction, the contact portion between the mounting substrate 40 and the leaf spring member 102 becomes a fulcrum, and when the slide plate 81 is moved in the + Y direction, the holding screws 88 and 89 are placed in the long holes 95. Slide. Then, the head fixing plate 82 moves in the + X direction and the + Y direction, and the liquid ejecting head 4 also moves in the + X direction and the + Y direction accordingly.
  • the plate spring member 103 biases the liquid ejecting head 4 in the + Z direction on the tip side that is the end in the + Y direction of the liquid ejecting head 4.
  • the restricting portions 90 and 91 of the slide plate 81 are fitted into the leaf spring members 92 and 92 provided on the base portion 68a.
  • the plate spring member 92 urges the liquid ejecting head 4 in the + Z direction by urging the slide plate 81 in the + Z direction on the base side that is the end portion in the ⁇ Y direction of the liquid ejecting head 4.
  • the slide arm 71 is further moved in the + Y direction. Then, the end portion 40a of the mounting substrate 40 of the liquid ejecting head 4 is guided and pressed by the leaf spring member 102 to further move the liquid ejecting head 4 in the + X direction.
  • the liquid ejecting head 4 moves in the + X direction until the pair of second protrusions 48 a and 48 b (see FIG. 3) formed on the mounting substrate 40 of the liquid ejecting head 4 abuts on the side surface of the groove portion 70.
  • the second protrusion 48 a comes into contact with the side surface of the groove portion 70 after the second protrusion 48 b comes into contact with the side surface of the groove portion 70. Thereby, the positioning of the liquid ejecting head 4 in the X direction is completed.
  • the first protrusion 47 formed on the mounting substrate 40 of the liquid jet head 4 contacts the side surface of the groove portion 70. Thereby, the positioning of the liquid ejecting head 4 in the Y direction is completed.
  • the upper surface 40 b of the mounting substrate 40 of the liquid ejecting head 4 is pressed in the + Z direction by the leaf spring member 103, and the restricting portion 55 ( 15), the positioning in the Z direction on the tip side of the liquid jet head 4 is completed.
  • the leaf spring members 92 and 92 urge the restricting portions 90 and 91 of the slide plate 81, whereby the positioning of the liquid ejecting head 4 in the Z direction is completed. Thereby, the positioning of the liquid ejecting head 4 in the Z direction is completed.
  • the liquid ejecting head 4 When the positioning of the liquid ejecting head 4 in the XYZ directions is completed, the liquid ejecting head 4 is fixed to the base portion 68 a of the carriage 68. In the state where the liquid jet head 4 is fixed to the base portion 68a, the nozzle plate 14 of the liquid jet head 4 and the recording surface of the recording medium S supplied to the liquid jet recording apparatus 1 are parallel to each other. .
  • a driving device (not shown) for moving the slide arm 71 in the Y direction is provided with a torque limiter, and the liquid ejecting head 4 is held in a fixed position at a desired position of the carriage 68.
  • the Rukoto The Rukoto.
  • the liquid ejecting head 4 moves in all directions in the XYZ directions of the carriage 68 with a simple mechanism that moves the slide arm 71 that moves the liquid ejecting head 4 with respect to the carriage 68 along the Y direction. Positioning is done. Further, by pressing the liquid ejecting head 4 with the leaf spring members 92, 102, and 103, the liquid ejecting head 4 can be reliably guided in the desired position and held at the desired position. Therefore, the positioning accuracy of the liquid jet head 4 with respect to the carriage 68 can be improved. In addition, after the liquid ejecting head 4 is attached to the carriage 68, it is not necessary to perform further positioning adjustment work, so that the production efficiency can be improved. In addition, since the position reproducibility when attaching / detaching the liquid jet head 4 is excellent, the recording accuracy on the recording medium S can be improved.
  • leaf spring members 92 and 103 are disposed at positions corresponding to both sides of the liquid ejecting head 4 in the Y direction, they can be pressed with a substantially equal force in the + Z direction on both sides of the liquid ejecting head 4 in the Y direction. The positioning accuracy can be further improved.
  • first protrusion 47 and the second protrusions 48a and 48b are formed on the side surface of the mounting substrate 40 of the liquid ejecting head 4, the first protrusion 47 and the second protrusions 48a and 48b come into contact with the side surface of the groove portion 70 to form liquid. Since the ejection head 4 is positioned, the liquid ejection head 4 can be accurately positioned.
  • the restricting portion 55 with which the mounting substrate 40 of the liquid ejecting head 4 is brought into contact is formed at the + Y direction end portion of the groove portion 70, the liquid ejecting head 4 can be accurately positioned in the Z direction.
  • the liquid ejecting head 4 can be rotated with respect to the carriage 68 simply by arranging the rotating arm 83 for rotating the liquid ejecting head 4 with respect to the carriage 68 and moving the slide arm 71 along the Y direction. Since it comprised in this way, the liquid jet head 4 can be rotated with a simple mechanism. Further, by configuring the liquid ejecting head 4 to be rotatable with respect to the carriage 68, maintenance can be performed in a state where the liquid ejecting head 4 is raised from the carriage 68. Therefore, it is not necessary to perform maintenance after the liquid ejecting head 4 is once moved out of the recording area, and the maintenance can be performed efficiently. Further, since it is not necessary to install a maintenance device necessary for maintenance at the side of the recording area, the device width can be reduced.
  • the liquid jet recording apparatus 1 includes the carriage unit 62 described above, the scanning unit 6 that moves the carriage unit 62, and the pair of transport units 2 and 3 that transport the recording medium S.
  • the liquid ejecting head 4 is positioned with respect to 68 with high accuracy, and ink can be ejected from the nozzle holes 13 of the liquid ejecting head 4 onto the recording surface of the recording medium S with high accuracy. Therefore, it is possible to provide the liquid jet recording apparatus 1 with excellent recording accuracy.
  • the present invention is not limited to the above-described embodiments, and includes various modifications made to the above-described embodiments without departing from the spirit of the present invention.
  • the specific materials and layer configurations described in the embodiments are merely examples, and can be changed as appropriate.
  • four liquid ejecting heads 4 are mounted on one carriage 68, but the number of liquid ejecting heads 4 mounted on one carriage 68 may be three or less or five or more.
  • the plurality of liquid jet heads 4 are arranged in a straight line, but may be arranged in a staggered manner.
  • the liquid ejecting head 4 is arranged so that the longitudinal direction of the liquid ejecting head 4 (arrangement direction of the nozzle holes 13) is orthogonal to the sub-scanning direction of the carriage 68.
  • the longitudinal direction of the liquid ejecting head 4 is The liquid ejecting head 4 may be disposed so as to intersect with the sub-scanning direction of the carriage 68 at an angle other than a right angle. As a result, the liquid ejection pitch in the main scanning direction is reduced, so that high-definition recording can be performed.
  • the first protrusion 47 and the second protrusions 48 a and 48 b are formed on the side surface of the liquid ejecting head 4, but may be formed on the side surface of the groove portion 70 in the carriage 68.
  • the liquid ejecting head 4 is pressed in a desired direction by the plate spring members 92, 102, and 103 provided on the carriage 68, but an urging member such as a plate spring member is applied to the liquid ejecting head 4. May be provided.

Abstract

Provided are a carriage unit configured in such a manner that a liquid discharge head can be positioned relative to a carriage with increased accuracy, a liquid discharge recording device, and a method of fastening a liquid discharge head. A carriage unit (62) provided with a liquid discharge head (4) and a carriage (68) which moves relative to and parallel with the recording surface of a medium on which recording is to be performed. The carriage is provided with a head support member (82) in which a guide groove (95) is formed, and also with a slide member (81) on which pins (88, 89) which can move along the guide groove are formed. When the slide member is moved in the longitudinal direction, the liquid discharge head is positioned relative to the carriage in the longitudinal direction. Also, when the pins are moved along the guide groove, a first pressing member (102) is caused to press the liquid discharge head to thereby position the liquid discharge head relative to the lateral direction, and second pressing members (92, 103) are also caused to press the liquid discharge head to thereby position the liquid discharge head relative to the height direction. Thus, the liquid discharge head is fastened relative to the carriage.

Description

キャリッジユニット、液体噴射記録装置および液体噴射ヘッドの固定方法Carriage unit, liquid jet recording apparatus, and liquid jet head fixing method
 本発明は、キャリッジユニット、液体噴射記録装置および液体噴射ヘッドの固定方法に関するものである。 The present invention relates to a carriage unit, a liquid jet recording apparatus, and a liquid jet head fixing method.
 従来から、記録紙等にインク滴などの液体を噴射して画像や文字等の記録を行う、プリンタやファックス等の液体噴射記録装置が知られている。この液体噴射記録装置は、被記録媒体の記録面に液体を噴射する噴射孔が複数配列された液体噴射ヘッドを備えている。この液体噴射ヘッドは、複数の噴射孔の配列方向を長手方向とし、長手方向と直交する方向を短手方向として、被記録媒体の記録面の法線方向から見て長方形状に形成されている。この液体噴射ヘッドがキャリッジに搭載された状態でキャリッジユニットを構成し、キャリッジユニットを前記短手方向に移動させ、被記録媒体を前記長手方向に搬送しつつ、前記液体噴射ヘッドから液体を噴射することで、被記録媒体に記録を行うようになっている。 2. Description of the Related Art Conventionally, liquid jet recording apparatuses such as printers and fax machines that record liquid images such as ink droplets on recording paper or the like to record images and characters are known. This liquid jet recording apparatus includes a liquid jet head in which a plurality of jet holes for jetting liquid are arranged on a recording surface of a recording medium. The liquid ejecting head is formed in a rectangular shape when viewed from the normal direction of the recording surface of the recording medium, with the arrangement direction of the plurality of ejection holes as the longitudinal direction and the direction orthogonal to the longitudinal direction as the short direction. . A carriage unit is configured with the liquid ejecting head mounted on the carriage, the carriage unit is moved in the lateral direction, and the recording medium is ejected from the liquid ejecting head while transporting the recording medium in the longitudinal direction. Thus, recording is performed on a recording medium.
 ここで、キャリッジに対する液体噴射ヘッドの固定構造としては、ネジ止めが一般的である。なお、特許文献1および2には、液体噴射ヘッドの取付作業を簡易かつ迅速に実施するため、キャリッジに対して液体噴射ヘッドを係止する固定構造が開示されている。 Here, as a structure for fixing the liquid jet head to the carriage, screwing is generally used. Patent Documents 1 and 2 disclose a fixing structure that locks the liquid ejecting head with respect to the carriage in order to easily and quickly perform the mounting operation of the liquid ejecting head.
特開2003-170575号公報JP 2003-170575 A 特開2002-210929号公報JP 2002-210929A
 近年では、液体噴射記録装置の記録精度を向上させることが望まれている。記録精度を向上させるには、キャリッジに対する液体噴射ヘッドの位置決め精度が重要になる。
 しかしながら、上述したネジ止め固定構造の場合には、水平方向につき液体噴射ヘッドをキャリッジに押し当てつつネジ止めすることにより、液体噴射ヘッドの位置決めを行っている。したがって、この場合には、ネジ締めトルクにより液体噴射ヘッドが回転して、微小な位置ズレを起こす可能性がある。また、特許文献1および2に記載された固定構造でも、位置決め精度の確保が困難である。
In recent years, it has been desired to improve the recording accuracy of a liquid jet recording apparatus. In order to improve the recording accuracy, the positioning accuracy of the liquid ejecting head with respect to the carriage is important.
However, in the case of the screw fixing structure described above, the liquid ejecting head is positioned by screwing the liquid ejecting head against the carriage in the horizontal direction. Therefore, in this case, there is a possibility that the liquid ejecting head rotates due to the screw tightening torque and causes a slight positional deviation. In addition, it is difficult to secure positioning accuracy even with the fixing structures described in Patent Documents 1 and 2.
 本発明は、上記のような問題に鑑みてなされたものであり、キャリッジに対する液体噴射ヘッドの位置決め精度を向上することができるキャリッジユニット、液体噴射記録装置および液体噴射ヘッドの固定方法を提供することを目的とする。 The present invention has been made in view of the above problems, and provides a carriage unit, a liquid jet recording apparatus, and a method for fixing a liquid jet head that can improve the positioning accuracy of the liquid jet head with respect to the carriage. With the goal.
 上記の問題を解決するために、本発明のキャリッジユニットは、被記録媒体の記録面に液体を噴射する複数の噴射孔が配列された液体噴射ヘッドと、該液体噴射ヘッドが固定された状態で、前記記録面と平行に相対移動するキャリッジと、を備えたキャリッジユニットであって、前記液体噴射ヘッドにおける前記複数の噴射孔の配列方向を長手方向とし、前記長手方向と直交する方向を短手方向とし、前記長手方向および前記短手方向と直交する方向を高さ方向として、前記キャリッジに、前記液体噴射ヘッドを支持可能に構成されるとともに、前記長手方向および前記短手方向と交差する方向にガイド溝が形成されたヘッド支持部材と、前記ガイド溝に沿って移動可能なピンが形成され、前記長手方向に沿って移動可能なスライド部材と、が備えられ、該スライド部材を前記長手方向に沿って移動させることで、前記液体噴射ヘッドと前記キャリッジとが当接して、前記キャリッジにおける前記液体噴射ヘッドの前記長手方向に対する位置決めがされ、前記ピンが前記ガイド溝に沿って移動することで前記液体噴射ヘッドが前記キャリッジの前記短手方向に沿って移動し、前記液体噴射ヘッドを前記キャリッジの幅方向に押圧可能な第1付勢部材により前記液体噴射ヘッドを押圧し、前記キャリッジにおける前記液体噴射ヘッドの前記短手方向に対する位置決めがされ、前記キャリッジに対して前記液体噴射ヘッドを前記キャリッジの高さ方向に押圧可能な第2付勢部材により前記液体噴射ヘッドを押圧し、前記キャリッジにおける前記液体噴射ヘッドの前記高さ方向に対する位置決めがされ、前記液体噴射ヘッドが前記キャリッジに対して固定可能に構成されていることを特徴としている。 In order to solve the above problems, a carriage unit according to the present invention includes a liquid ejecting head in which a plurality of ejection holes for ejecting liquid is arranged on a recording surface of a recording medium, and the liquid ejecting head being fixed. A carriage unit that moves relative to and parallel to the recording surface, wherein the arrangement direction of the plurality of ejection holes in the liquid ejection head is a longitudinal direction, and a direction orthogonal to the longitudinal direction is a short side. A direction perpendicular to the longitudinal direction and the short direction is a height direction, and the carriage is configured to be able to support the liquid ejecting head, and a direction intersecting the longitudinal direction and the short direction. A head support member having a guide groove formed thereon, and a slide member formed with a pin movable along the guide groove and movable along the longitudinal direction; The liquid ejecting head and the carriage come into contact with each other by moving the slide member along the longitudinal direction, and the positioning of the liquid ejecting head in the longitudinal direction on the carriage is performed. Is moved along the guide groove so that the liquid ejecting head is moved along the short direction of the carriage, and the liquid ejecting head is pressed by the first biasing member capable of pressing the liquid ejecting head in the width direction of the carriage. A second urging member that presses the liquid jet head, positions the liquid jet head in the carriage in the short direction, and presses the liquid jet head in the height direction of the carriage with respect to the carriage. The liquid ejecting head is pressed against the height direction of the liquid ejecting head in the carriage. Me-decided is, the liquid ejecting head is characterized in that it is fixable configured for the carriage.
 この発明によれば、キャリッジに対して液体噴射ヘッドを移動させるスライド部材を長手方向に沿って移動させる簡便な機構で、液体噴射ヘッドがキャリッジにおける長手方向、短手方向および高さ方向のすべての方向の位置決めがなされる。また、第1付勢部材および第2付勢部材で液体噴射ヘッドを押圧することにより、液体噴射ヘッドを所望の位置の方向へ確実に案内するとともに、所望の位置で保持させることができる。したがって、キャリッジに対する液体噴射ヘッドの位置決め精度を向上することができる。また、液体噴射ヘッドをキャリッジに取り付けた後に、さらに位置決め調整作業を行う必要がないため、生産効率を向上することができる。また、液体噴射ヘッドを取り付け・取り外しする際の位置再現性に優れているため、記録媒体への記録精度を向上することができる。 According to the present invention, the liquid ejecting head moves in the longitudinal direction, the lateral direction, and the height direction in the carriage with a simple mechanism that moves the slide member that moves the liquid ejecting head with respect to the carriage along the longitudinal direction. Directional positioning is made. Further, by pressing the liquid ejecting head with the first urging member and the second urging member, the liquid ejecting head can be surely guided in the direction of the desired position and held at the desired position. Therefore, the positioning accuracy of the liquid ejecting head with respect to the carriage can be improved. In addition, after the liquid ejecting head is attached to the carriage, it is not necessary to perform a positioning adjustment operation, so that the production efficiency can be improved. In addition, since the position reproducibility when the liquid ejecting head is attached / detached is excellent, the recording accuracy to the recording medium can be improved.
 また、本発明のキャリッジユニットは、前記第2付勢部材が、前記液体噴射ヘッドの前記長手方向における両側に対応した位置に設けられていることを特徴としている。 Further, the carriage unit of the present invention is characterized in that the second urging member is provided at a position corresponding to both sides in the longitudinal direction of the liquid jet head.
 この発明によれば、第2付勢部材を液体噴射ヘッドの長手方向の両側に対応する位置に配置することにより、液体噴射ヘッドの長手方向に対して略均等な力で押圧することができ、位置決め精度をさらに向上することができる。 According to this invention, by disposing the second urging member at positions corresponding to both sides in the longitudinal direction of the liquid ejecting head, the second urging member can be pressed with a substantially equal force against the longitudinal direction of the liquid ejecting head, The positioning accuracy can be further improved.
 また、本発明のキャリッジユニットは、前記キャリッジに、前記液体噴射ヘッドの少なくとも一部を収容する収容部が形成され、前記長手方向および前記短手方向における前記液体噴射ヘッドおよび前記収容部のうち一方の側面には、前記長手方向に突出する第1突起と、前記短手方向に突出する第2突起と、が形成され、前記第1突起および前記第2突起が、前記液体噴射ヘッドおよび前記収容部のうち他方の側面に当接することで、前記液体噴射ヘッドが前記キャリッジに対して前記長手方向および前記短手方向に位置決めされるように構成されていることを特徴としている。 In the carriage unit according to the aspect of the invention, the carriage may include a housing portion that houses at least a part of the liquid ejecting head, and one of the liquid ejecting head and the housing portion in the longitudinal direction and the short direction. A first protrusion protruding in the longitudinal direction and a second protrusion protruding in the short direction are formed on the side surface of the liquid ejecting head, and the first protrusion and the second protrusion are connected to the liquid ejecting head and the housing. The liquid ejecting head is configured to be positioned in the longitudinal direction and the lateral direction with respect to the carriage by abutting against the other side surface of the portion.
 この発明によれば、第1突起および第2突起が液体噴射ヘッドまたは収容部の側面に当接して位置決めされるため、液体噴射ヘッドの位置決めを精度良く行なうことができる。 According to the present invention, since the first protrusion and the second protrusion are positioned in contact with the side surface of the liquid ejecting head or the accommodating portion, the liquid ejecting head can be accurately positioned.
 また、本発明のキャリッジユニットは、前記収容部に、前記液体噴射ヘッドにおける前記噴射孔が形成された側の噴射面に当接可能な規制部が形成され、前記噴射面が前記規制部に当接することで、前記液体噴射ヘッドが前記キャリッジに対して前記高さ方向に位置決めされるように構成されていることを特徴としている。 In the carriage unit according to the aspect of the invention, the housing portion may include a restricting portion that can contact the ejecting surface of the liquid ejecting head on which the ejecting hole is formed, and the ejecting surface contacts the restricting portion. The liquid ejecting head is configured to be positioned in the height direction with respect to the carriage by being in contact therewith.
 この発明によれば、収容部に形成された規制部が液体噴射ヘッドの噴射面に当接して位置決めされるため、液体噴射ヘッドの位置決めを精度良く行なうことができる。 According to the present invention, since the restricting portion formed in the housing portion is positioned in contact with the ejection surface of the liquid ejecting head, the liquid ejecting head can be accurately positioned.
 また、本発明のキャリッジユニットは、前記スライド部材における前記短手方向に沿って回転軸が設けられ、少なくとも一部に歯車部が形成され、該歯車部の回転中心に前記回転軸が配設されるとともに、該回転軸が前記長手方向に移動可能な長孔が形成された回動部材が前記ヘッド支持部材に連接され、前記キャリッジに、前記歯車部に噛合するギヤ部が前記長手方向に沿って形成され、前記液体噴射ヘッドが前記キャリッジに固定されている状態から固定解除する方向に前記スライド部材を前記長手方向に沿って移動させることで、前記回転軸が前記長孔内を移動し、前記回転軸が前記回転中心の位置まで移動した後、さらにスライド部材を前記長手方向に沿って移動させることで、前記歯車部が前記ギヤ部に噛合して、前記液体噴射ヘッドが前記回転軸を中心として前記キャリッジに対して回動可能に構成されていることを特徴としている。 In the carriage unit of the present invention, a rotation shaft is provided along the short direction of the slide member, a gear portion is formed at least in part, and the rotation shaft is disposed at the rotation center of the gear portion. In addition, a rotating member in which a long hole in which the rotation shaft is movable in the longitudinal direction is connected to the head support member, and a gear portion that meshes with the gear portion is along the longitudinal direction. And moving the slide member along the longitudinal direction in a direction to release the fixation from the state where the liquid ejecting head is fixed to the carriage, so that the rotation shaft moves in the elongated hole, After the rotation shaft has moved to the position of the rotation center, the slide member is further moved along the longitudinal direction so that the gear portion meshes with the gear portion and the liquid ejection Head is characterized by being configured so as to be rotatable with respect to said carriage about said rotary shaft.
 この発明によれば、キャリッジに対して液体噴射ヘッドを回動させる回動部材を配し、スライド部材を長手方向に沿って移動させるだけで、液体噴射ヘッドがキャリッジに対して回動できるように構成したため、簡便な機構で液体噴射ヘッドを回動させることができる。また、液体噴射ヘッドをキャリッジに対して回動可能に構成することにより、液体噴射ヘッドをキャリッジから引き起こした状態でメンテナンスを行うことができる。したがって、液体噴射ヘッドを記録領域外へ一旦移動させてからメンテナンスを行う必要がなくなり、効率よくメンテナンスを行うことができる。また、メンテナンス時に必要なメンテナンス装置を記録領域の側方に設置する必要がなくなるため、装置幅を縮小することができる。 According to the present invention, the rotation member that rotates the liquid ejecting head with respect to the carriage is disposed, and the liquid ejecting head can be rotated with respect to the carriage only by moving the slide member along the longitudinal direction. Since it comprised, the liquid ejecting head can be rotated with a simple mechanism. In addition, since the liquid ejecting head is configured to be rotatable with respect to the carriage, maintenance can be performed with the liquid ejecting head raised from the carriage. Therefore, there is no need to perform maintenance after the liquid ejecting head is once moved out of the recording area, and maintenance can be performed efficiently. Further, since it is not necessary to install a maintenance device necessary for maintenance at the side of the recording area, the device width can be reduced.
 本発明の液体噴射記録装置は、上述のいずれかに記載のキャリッジユニットと、該キャリッジユニットを移動させるキャリッジ移動手段と、前記被記録媒体を搬送する被記録媒体搬送手段と、を備えていることを特徴としている。 A liquid jet recording apparatus according to the present invention includes any of the carriage units described above, a carriage moving unit that moves the carriage unit, and a recording medium conveyance unit that conveys the recording medium. It is characterized by.
 この発明によれば、キャリッジに対して精度良く液体噴射ヘッドが位置決めされたキャリッジユニットを備えているため、液体噴射ヘッドの噴射孔から被記録媒体の記録面に対して精度良く液体を噴射することが可能になる。したがって、記録精度に優れた液体噴射記録装置を提供することができる。 According to the present invention, since the carriage unit in which the liquid ejecting head is accurately positioned with respect to the carriage is provided, the liquid is ejected from the ejection hole of the liquid ejecting head to the recording surface of the recording medium with high accuracy. Is possible. Therefore, it is possible to provide a liquid jet recording apparatus with excellent recording accuracy.
 本発明の液体噴射ヘッドの固定方法は、被記録媒体の記録面に液体を噴射する複数の噴射孔が配列された液体噴射ヘッドと、該液体噴射ヘッドが固定された状態で、前記記録面と平行に相対移動するキャリッジと、を備えたキャリッジユニットにおける液体噴射ヘッドの固定方法であって、前記液体噴射ヘッドにおける前記複数の噴射孔の配列方向を長手方向とし、前記長手方向と直交する方向を短手方向とし、前記長手方向および前記短手方向と直交する方向を高さ方向として、前記キャリッジに、前記液体噴射ヘッドを支持可能に構成されるとともに、前記長手方向および前記短手方向と交差する方向にガイド溝が形成されたヘッド支持部材と、前記ガイド溝に沿って移動可能なピンが形成され、前記長手方向に沿って移動可能なスライド部材と、が備えられ、前記ヘッド支持部材に前記液体噴射ヘッドを支持した状態で、前記スライド部材を前記長手方向に沿って移動させることで、前記キャリッジに対して前記液体噴射ヘッドを前記長手方向に固定する長手方向固定工程と、前記キャリッジに対して前記液体噴射ヘッドを前記短手方向に固定する短手方向固定工程と、前記キャリッジに対して前記液体噴射ヘッドを前記高さ方向に固定する高さ方向固定工程と、が完了することを特徴としている。 The fixing method of the liquid jet head according to the present invention includes a liquid jet head in which a plurality of jet holes for jetting liquid is arranged on a recording surface of a recording medium, and the recording surface in a state where the liquid jet head is fixed. A liquid ejecting head fixing method in a carriage unit including a carriage that relatively moves in parallel, wherein an arrangement direction of the plurality of ejecting holes in the liquid ejecting head is a longitudinal direction, and a direction orthogonal to the longitudinal direction is The longitudinal direction and the direction orthogonal to the transverse direction are defined as the height direction, and the carriage is configured to be able to support the liquid jet head, and intersects the longitudinal direction and the transverse direction. A head support member having a guide groove formed in a direction to be moved, and a pin movable along the guide groove, and a slider movable along the longitudinal direction. And moving the slide member along the longitudinal direction in a state where the liquid ejecting head is supported by the head support member, thereby moving the liquid ejecting head relative to the carriage. A longitudinal direction fixing step for fixing in the direction, a short direction fixing step for fixing the liquid ejecting head in the short direction relative to the carriage, and a fixing of the liquid ejecting head in the height direction relative to the carriage. The height direction fixing step is completed.
 この発明によれば、キャリッジに対して液体噴射ヘッドを移動させるスライド部材を長手方向に沿って移動させるだけで、液体噴射ヘッドがキャリッジにおける長手方向、短手方向および高さ方向のすべての方向の位置決めがなされる。したがって、キャリッジに対する液体噴射ヘッドの位置決め精度を向上することができる。また、液体噴射ヘッドをキャリッジに取り付けた後に、さらに位置決め調整作業を行う必要がないため、生産効率を向上することができる。また、液体噴射ヘッドを取り付け・取り外しする際の位置再現性に優れているため、記録媒体への記録精度を向上することができる。 According to the present invention, the liquid ejecting head is moved in all directions of the longitudinal direction, the lateral direction, and the height direction of the carriage only by moving the slide member that moves the liquid ejecting head with respect to the carriage along the longitudinal direction. Positioning is done. Therefore, the positioning accuracy of the liquid ejecting head with respect to the carriage can be improved. In addition, after the liquid ejecting head is attached to the carriage, it is not necessary to perform a positioning adjustment operation, so that the production efficiency can be improved. In addition, since the position reproducibility when the liquid ejecting head is attached / detached is excellent, the recording accuracy to the recording medium can be improved.
 また、本発明の液体噴射ヘッドの固定方法は、前記スライド部材における前記短手方向に沿って回転軸が設けられ、少なくとも一部に歯車部が形成され、該歯車部の回転中心に前記回転軸が配設されるとともに、該回転軸が前記長手方向に移動可能な長孔が形成された回動部材が前記ヘッド支持部材に連接され、前記キャリッジに、前記歯車部に噛合するギヤ部が前記長手方向に沿って形成され、前記液体噴射ヘッドが前記キャリッジに対して固定解除されている状態から固定する方向に前記スライド部材を前記長手方向に沿って移動させることで、前記歯車部が前記ギヤ部に噛合して、前記液体噴射ヘッドが前記回転軸を中心として前記キャリッジに対して回動する工程と、前記キャリッジと前記回動部材とが当接し、前記液体噴射ヘッドの前記キャリッジに対する回動が停止した後、さらに前記スライド部材を前記長手方向に沿って移動させることで、前記スライド部材に設けられた前記回転軸が前記長孔内を移動する工程と、を有し、前記スライド部材が前記長手方向に沿って移動することで、前記長手方向固定工程、前記短手方向固定工程および前記高さ方向固定工程が完了することを特徴としている。 In the liquid ejecting head fixing method of the present invention, a rotation shaft is provided along the short direction of the slide member, a gear portion is formed at least at a part, and the rotation shaft is formed at the rotation center of the gear portion. And a rotating member having a long hole in which the rotation shaft is movable in the longitudinal direction is connected to the head support member, and a gear portion meshing with the gear portion is connected to the carriage. By moving the slide member along the longitudinal direction in a direction to be fixed from a state where the liquid ejecting head is fixedly released with respect to the carriage, the gear portion is formed along the longitudinal direction. A step of rotating the liquid ejecting head with respect to the carriage about the rotation axis, and the carriage and the rotating member abut on each other, and the liquid ejecting head The rotation of the rotary shaft provided on the slide member is moved in the elongated hole by further moving the slide member along the longitudinal direction. And the said longitudinal direction fixing process, the said transversal direction fixing process, and the said height direction fixing process are completed because the said slide member moves along the said longitudinal direction.
 この発明によれば、キャリッジに対して液体噴射ヘッドを回動させる回動部材を配し、スライド部材を長手方向に沿って移動させるだけで、液体噴射ヘッドがキャリッジに対して回動できるように構成したため、簡便な機構で液体噴射ヘッドを回動させることができる。また、液体噴射ヘッドをキャリッジに対して回動可能に構成することにより、液体噴射ヘッドをキャリッジから引き起こした状態でメンテナンスを行うことができる。したがって、液体噴射ヘッドをメンテナンスした後、スライド部材を長手方向に沿って移動させるだけで、キャリッジに対して液体噴射ヘッドを回動させ、回動完了後にさらにスライド部材を長手方向に沿って移動させることで、液体噴射ヘッドをキャリッジの所望の位置に固定することができる。つまり、簡便な構造で液体噴射ヘッドの回動および固定を行うことができる。また、液体噴射ヘッドを回動できるようにすることで、液体噴射ヘッドを記録領域外へ一旦移動させてからメンテナンスを行う必要がなくなり、効率よくメンテナンスを行うことができる。また、メンテナンス時に必要なメンテナンス装置を記録領域の側方に設置する必要がなくなるため、装置幅を縮小することができる。 According to the present invention, the rotation member that rotates the liquid ejecting head with respect to the carriage is disposed, and the liquid ejecting head can be rotated with respect to the carriage only by moving the slide member along the longitudinal direction. Since it comprised, the liquid ejecting head can be rotated with a simple mechanism. In addition, since the liquid ejecting head is configured to be rotatable with respect to the carriage, maintenance can be performed with the liquid ejecting head raised from the carriage. Therefore, after the maintenance of the liquid ejecting head, the liquid ejecting head is rotated with respect to the carriage simply by moving the slide member along the longitudinal direction, and the slide member is further moved along the longitudinal direction after the rotation is completed. Thus, the liquid ejecting head can be fixed at a desired position on the carriage. That is, the liquid ejecting head can be rotated and fixed with a simple structure. In addition, since the liquid ejecting head can be rotated, it is not necessary to perform maintenance after the liquid ejecting head is once moved out of the recording area, and the maintenance can be performed efficiently. Further, since it is not necessary to install a maintenance device necessary for maintenance at the side of the recording area, the device width can be reduced.
 本発明のキャリッジユニットによれば、キャリッジに対して液体噴射ヘッドを移動させるスライド部材を長手方向に沿って移動させる簡便な機構で、液体噴射ヘッドがキャリッジにおける長手方向、短手方向および高さ方向のすべての方向の位置決めがなされる。また、第1付勢部材および第2付勢部材で液体噴射ヘッドを押圧することにより、液体噴射ヘッドを所望の位置の方向へ確実に案内するとともに、所望の位置で保持させることができる。したがって、キャリッジに対する液体噴射ヘッドの位置決め精度を向上することができる。また、液体噴射ヘッドをキャリッジに取り付けた後に、さらに位置決め調整作業を行う必要がないため、生産効率を向上することができる。また、液体噴射ヘッドを取り付け・取り外しする際の位置再現性に優れているため、記録媒体への記録精度を向上することができる。 According to the carriage unit of the present invention, the liquid ejecting head is moved in the longitudinal direction, the lateral direction, and the height direction in the carriage by a simple mechanism that moves the slide member that moves the liquid ejecting head with respect to the carriage along the longitudinal direction. Positioning in all directions is performed. Further, by pressing the liquid ejecting head with the first urging member and the second urging member, the liquid ejecting head can be surely guided in the direction of the desired position and held at the desired position. Therefore, the positioning accuracy of the liquid ejecting head with respect to the carriage can be improved. In addition, after the liquid ejecting head is attached to the carriage, it is not necessary to perform a positioning adjustment operation, so that the production efficiency can be improved. In addition, since the position reproducibility when the liquid ejecting head is attached / detached is excellent, the recording accuracy to the recording medium can be improved.
本発明の実施形態における液体噴射記録装置を示す斜視図である。1 is a perspective view showing a liquid jet recording apparatus in an embodiment of the present invention. 本発明の実施形態における液体噴射ヘッドを示す斜視図である。FIG. 2 is a perspective view illustrating a liquid ejecting head according to an embodiment of the invention. 本発明の実施形態における液体噴射ヘッドを示す斜視図であり、図2の反対側から見た斜視図である。FIG. 3 is a perspective view illustrating a liquid jet head according to an embodiment of the present invention, and is a perspective view seen from the opposite side of FIG. 2. 本発明の実施形態におけるヘッドチップの斜視図である。It is a perspective view of a head chip in an embodiment of the present invention. 本発明の実施形態におけるキャリッジユニットの要部を示す斜視図である。It is a perspective view which shows the principal part of the carriage unit in embodiment of this invention. 本発明の実施形態における回動固定機構の斜視図である。It is a perspective view of the rotation fixing mechanism in the embodiment of the present invention. 本発明の実施形態における回動固定機構の一部材であるスライドアームの斜視図である。It is a perspective view of the slide arm which is one member of the rotation fixing mechanism in the embodiment of the present invention. 本発明の実施形態における回動固定機構の一部材であるスライドプレートの斜視図である。It is a perspective view of the slide plate which is one member of the rotation fixing mechanism in the embodiment of the present invention. 本発明の実施形態における回動固定機構の一部材であるヘッド固定板の斜視図である。It is a perspective view of the head fixing plate which is one member of the rotation fixing mechanism in the embodiment of the present invention. 本発明の実施形態における回動固定機構の一部材である回動アームの斜視図である。It is a perspective view of the rotation arm which is one member of the rotation fixing mechanism in the embodiment of the present invention. 本発明の実施形態における液体噴射ヘッドとキャリッジとの回動固定方法の流れを説明する部分斜視図(1)である。It is a partial perspective view (1) explaining the flow of the rotation fixing method of the liquid jet head and the carriage in the embodiment of the present invention. 本発明の実施形態における液体噴射ヘッドとキャリッジとの回動固定方法の流れを説明する部分斜視図(2)である。It is a fragmentary perspective view (2) explaining the flow of the rotation fixing method of the liquid ejecting head and the carriage in the embodiment of the present invention. 本発明の実施形態における液体噴射ヘッドとキャリッジとの回動固定方法の流れを説明する部分斜視図(3)である。It is a partial perspective view (3) explaining the flow of the rotation fixing method of the liquid jet head and the carriage in the embodiment of the present invention. 本発明の実施形態における液体噴射ヘッドとキャリッジとの回動固定方法の流れを説明する部分斜視図(4)である。It is a fragmentary perspective view (4) explaining the flow of the rotation fixing method of the liquid ejecting head and the carriage in the embodiment of the present invention. 本発明の実施形態における液体噴射ヘッドとキャリッジとの回動固定方法の流れを説明する部分斜視図(5)である。It is a fragmentary perspective view (5) explaining the flow of the rotation fixing method of the liquid ejecting head and the carriage in the embodiment of the present invention. 本発明の実施形態における液体噴射ヘッドとキャリッジとの回動固定方法の流れを説明する部分斜視図(6)である。It is a fragmentary perspective view (6) explaining the flow of the rotation fixing method of the liquid ejecting head and the carriage in the embodiment of the present invention.
 次に、本発明の実施形態について図1~図16を用いて説明する。
(液体噴射記録装置)
 図1は、液体噴射記録装置を示す斜視図である。液体噴射記録装置1は、紙などの被記録媒体Sを搬送する一対の搬送手段2,3と、被記録媒体Sにインクを吐出する液体噴射ヘッド4と、液体噴射ヘッド4にインクを供給するインク供給手段5と、液体噴射ヘッド4を被記録媒体Sの搬送方向(主走査方向)と略直交する方向(副走査方向)に走査させる走査手段6と、を備えている。
Next, an embodiment of the present invention will be described with reference to FIGS.
(Liquid jet recording device)
FIG. 1 is a perspective view showing a liquid jet recording apparatus. The liquid jet recording apparatus 1 includes a pair of transport units 2 and 3 that transport a recording medium S such as paper, a liquid jet head 4 that ejects ink onto the recording medium S, and supplies ink to the liquid jet head 4. Ink supply means 5 and scanning means 6 for causing the liquid ejecting head 4 to scan in a direction (sub-scanning direction) substantially orthogonal to the conveyance direction (main scanning direction) of the recording medium S are provided.
 一対の搬送手段2,3は、それぞれ副走査方向に延設されたグリッドローラ20,30と、グリッドローラ20,30に平行して延設されたピンチローラ21,31と、グリッドローラ20,30を軸回転させるモータなどの図示せぬ駆動機構と、を備えている。 The pair of conveying means 2 and 3 includes grid rollers 20 and 30 extending in the sub-scanning direction, pinch rollers 21 and 31 extending in parallel to the grid rollers 20 and 30, and grid rollers 20 and 30, respectively. And a drive mechanism (not shown) such as a motor for rotating the shaft.
 インク供給手段5は、インクが収容されたインクタンク50と、インクタンク50と液体噴射ヘッド4とを接続するインク供給管51と、を備えている。インクタンク50は、複数備えられており、具体的には、イエロー、マゼンタ、シアン、ブラックの4種類のインクのインクタンク50Y,50M、50C,50Bが並べて設けられている。インク供給管51は、液体噴射ヘッド4(キャリッジユニット62)の動作に対応可能な可撓性を有するフレキシブルホースで構成されている。なお、キャリッジユニット62は、キャリッジ68に液体噴射ヘッド4が取り付けられた状態のことをいう。 The ink supply means 5 includes an ink tank 50 that contains ink, and an ink supply pipe 51 that connects the ink tank 50 and the liquid ejecting head 4. A plurality of ink tanks 50 are provided. Specifically, ink tanks 50Y, 50M, 50C, and 50B of four types of inks of yellow, magenta, cyan, and black are provided side by side. The ink supply pipe 51 is configured by a flexible hose having flexibility that can correspond to the operation of the liquid ejecting head 4 (carriage unit 62). The carriage unit 62 refers to a state where the liquid ejecting head 4 is attached to the carriage 68.
 走査手段6は、副走査方向に延設された一対のガイドレール60,61と、一対のガイドレール60,61に沿って摺動可能なキャリッジユニット62と、キャリッジユニット62を副走査方向に移動させる駆動機構63と、を備えている。駆動機構63は、一対のガイドレール60,61の間に配設された一対のプーリ64,65と、一対のプーリ64,65間に巻回された無端ベルト66と、一方のプーリ64を回転駆動させる駆動モータ67と、を備えている。一対のプーリ64,65は、一対のガイドレール60,61の両端部間にそれぞれ配設されており、副走査方向に間隔をあけて配置されている。無端ベルト66は一対のガイドレール60,61間に配設されており、この無端ベルトにはキャリッジユニット62が連結されている。キャリッジユニット62には複数の液体噴射ヘッド4が搭載されており、具体的には、イエロー、マゼンタ、シアン、ブラックの4種類のインクの液体噴射ヘッド4Y,4M,4C,4Bが副走査方向に並んで搭載されている。 The scanning unit 6 includes a pair of guide rails 60 and 61 extending in the sub-scanning direction, a carriage unit 62 slidable along the pair of guide rails 60 and 61, and moving the carriage unit 62 in the sub-scanning direction. And a drive mechanism 63. The drive mechanism 63 rotates a pair of pulleys 64 and 65 disposed between the pair of guide rails 60 and 61, an endless belt 66 wound between the pair of pulleys 64 and 65, and one pulley 64. A drive motor 67 to be driven. The pair of pulleys 64 and 65 are disposed between both end portions of the pair of guide rails 60 and 61, respectively, and are disposed at an interval in the sub-scanning direction. The endless belt 66 is disposed between a pair of guide rails 60 and 61, and a carriage unit 62 is connected to the endless belt. A plurality of liquid ejecting heads 4 are mounted on the carriage unit 62. Specifically, liquid ejecting heads 4Y, 4M, 4C, and 4B of four types of inks of yellow, magenta, cyan, and black are arranged in the sub-scanning direction. It is mounted side by side.
(液体噴射ヘッド)
 図2、図3は、液体噴射ヘッドを示す斜視図である。液体噴射ヘッド4は、キャリッジ68との連結部材である取付基板40と、インクを被記録媒体Sに向かって噴射するノズル孔13を備えた液体噴射ヘッドチップ(以下、単に「ヘッドチップ」という。)41と、インクをヘッドチップ41へ流通させる流路基板42と、各部材の支持部となるベースプレート44と、インクの吐出タイミングなどを制御するための配線基板45と、を備えている。なお、取付基板40およびベースプレート44は別体でもよいし、一体成形されていてもよい。また、取付基板40にはヘッドチップ41から漏れ出たインクを吸引するための吸引管39が取り付けられている。
(Liquid jet head)
2 and 3 are perspective views illustrating the liquid ejecting head. The liquid ejecting head 4 is a liquid ejecting head chip (hereinafter simply referred to as “head chip”) that includes a mounting substrate 40 that is a connecting member to the carriage 68 and a nozzle hole 13 that ejects ink toward the recording medium S. ) 41, a flow path substrate 42 that circulates ink to the head chip 41, a base plate 44 that serves as a support portion of each member, and a wiring substrate 45 that controls ink ejection timing and the like. Note that the mounting substrate 40 and the base plate 44 may be separate or integrally formed. A suction tube 39 for sucking ink leaking from the head chip 41 is attached to the mounting substrate 40.
 取付基板40は、Z方向から見て略長方形状に形成されている。その長辺の中央部からベースプレート44の表面にかけて、取付基板40に切欠きが設けられている。その切欠きの奥面には、ヘッドチップ41が取り付けられている。 The mounting substrate 40 is formed in a substantially rectangular shape when viewed from the Z direction. A notch is provided in the mounting substrate 40 from the center of the long side to the surface of the base plate 44. A head chip 41 is attached to the inner surface of the notch.
 流路基板42は、ヘッドチップ41の一面側に取り付けられている。流路基板42の内部にはインクを流通させるための図示せぬ流通路が形成されており、流路基板42の上面には前記流通路に連通する流入口42aが形成されている。この流入口42aには、インクの圧力変動を吸収する圧力調整部49が連結されている。 The flow path substrate 42 is attached to one surface side of the head chip 41. A flow passage (not shown) for circulating ink is formed inside the flow path substrate 42, and an inflow port 42 a communicating with the flow path is formed on the upper surface of the flow path substrate 42. A pressure adjusting unit 49 that absorbs ink pressure fluctuation is connected to the inflow port 42a.
 ベースプレート44は、取付基板40の上面に略垂直に立設されており、その表面には配線基板45が取り付けられている。配線基板45には、ヘッドチップ41の動作を制御する制御回路45aが形成されている。配線基板45とヘッドチップ41との間は、フレキシブル基板46によって電気的に接続されている。 The base plate 44 is erected substantially vertically on the upper surface of the mounting substrate 40, and a wiring substrate 45 is mounted on the surface thereof. A control circuit 45 a that controls the operation of the head chip 41 is formed on the wiring board 45. The wiring substrate 45 and the head chip 41 are electrically connected by a flexible substrate 46.
 図4は、ヘッドチップの斜視図である。ヘッドチップ41には、インクが収容されるインク室10と、電圧を印加することにより変形可能な圧電素子で区切られ並列に配置された複数のチャネル17と、被記録媒体Sに向けてインク滴を吐出するノズル孔13と、が備えられている。
 また、ヘッドチップ41は、所謂独立チャネルタイプのヘッドチップであって、スリット形成壁9によってインクが供給される溝とインクが供給されない溝を構成し、導電性のインクであっても短絡事故を生ずることなく、液滴を吐出することができる。なお、アクチュエータプレート15には、溝15bのそれぞれの側壁に沿ってフレキシブル基板46に接続された電極15cが設けられている。
 さらに、ヘッドチップ41の構成は、この実施例に限られるものではない。例えば、スリット形成壁9を設けず、アクチュエータプレートに形成されている溝の全てにインクを供給するようにしても構わない。
FIG. 4 is a perspective view of the head chip. The head chip 41 includes an ink chamber 10 in which ink is stored, a plurality of channels 17 arranged in parallel by being divided by piezoelectric elements that can be deformed by applying a voltage, and ink droplets toward the recording medium S. And a nozzle hole 13 for discharging water.
Further, the head chip 41 is a so-called independent channel type head chip, which comprises a groove where ink is supplied and a groove where ink is not supplied by the slit forming wall 9, and even if conductive ink is used, a short circuit accident occurs. Droplets can be ejected without occurring. The actuator plate 15 is provided with electrodes 15c connected to the flexible substrate 46 along the respective side walls of the grooves 15b.
Furthermore, the configuration of the head chip 41 is not limited to this embodiment. For example, the slit forming wall 9 may not be provided, and ink may be supplied to all the grooves formed in the actuator plate.
 具体的に説明すると、ヘッドチップ41は、いわゆる独立チャネルタイプのヘッドチップであって、ノズル孔13が形成されたノズルプレート14と、複数の圧電素子が間隔をあけて並列に立設され複数のチャネル17が形成されたアクチュエータプレート15と、インク室10が形成されたインク室プレート16と、ノズルプレート14を支持するためのノズルキャップ8と、を備えている。アクチュエータプレート15は、例えばチタン酸ジルコン酸鉛(PZT)などの圧電材料からなる矩形プレートである。 More specifically, the head chip 41 is a so-called independent channel type head chip, and a nozzle plate 14 in which the nozzle holes 13 are formed and a plurality of piezoelectric elements are arranged in parallel with a plurality of gaps therebetween. The actuator plate 15 in which the channel 17 is formed, the ink chamber plate 16 in which the ink chamber 10 is formed, and the nozzle cap 8 for supporting the nozzle plate 14 are provided. The actuator plate 15 is a rectangular plate made of a piezoelectric material such as lead zirconate titanate (PZT).
 図2、図3に示す液体噴射ヘッド4には、被記録媒体Sの記録面とヘッドチップ41のノズルプレート14とが平行に配置されるように、ノズルプレート14を下方に向けてヘッドチップ41が取り付けられている。液体噴射ヘッド4は、ヘッドチップ41のノズル孔13の配列方向が長手方向になり、その長手方向と直交する方向が短手方向になっている。すなわち液体噴射ヘッド4は、被記録媒体Sの記録面の法線方向から見て略長方形状に形成されている。以下では、液体噴射ヘッド4の長手方向をY方向、短手方向をX方向、被記録媒体Sの記録面の法線方向(高さ方向)をZ方向と呼ぶことにする。 In the liquid jet head 4 shown in FIGS. 2 and 3, the head chip 41 is directed downward so that the recording surface of the recording medium S and the nozzle plate 14 of the head chip 41 are arranged in parallel. Is attached. In the liquid jet head 4, the arrangement direction of the nozzle holes 13 of the head chip 41 is the longitudinal direction, and the direction orthogonal to the longitudinal direction is the short direction. That is, the liquid jet head 4 is formed in a substantially rectangular shape when viewed from the normal direction of the recording surface of the recording medium S. Hereinafter, the longitudinal direction of the liquid jet head 4 is referred to as a Y direction, the short direction is referred to as an X direction, and the normal direction (height direction) of the recording surface of the recording medium S is referred to as a Z direction.
 図1に戻り、液体噴射記録装置1のキャリッジユニット62には、液体噴射ヘッド4が、長手方向(Y方向)を主走査方向に一致させ、短手方向(X方向)を副走査方向に一致させて搭載されている。またキャリッジユニット62には、複数の液体噴射ヘッド4がX方向に略等間隔に並んで搭載されている。そして、被記録媒体SをY方向に搬送し、キャリッジユニット62をX方向に移動させつつ、液体噴射ヘッド4からインク滴を噴射することで、被記録媒体Sに記録を行うようになっている。 Returning to FIG. 1, in the carriage unit 62 of the liquid jet recording apparatus 1, the liquid jet head 4 matches the longitudinal direction (Y direction) to the main scanning direction and the short side direction (X direction) to the sub scanning direction. It is installed. In addition, a plurality of liquid ejecting heads 4 are mounted on the carriage unit 62 at substantially equal intervals in the X direction. Then, the recording medium S is transported in the Y direction, and ink droplets are ejected from the liquid ejecting head 4 while moving the carriage unit 62 in the X direction, thereby recording on the recording medium S. .
(キャリッジユニット)
 図5は、キャリッジユニット62の斜視図であり、キャリッジ68の基台部68aに液体噴射ヘッド4が取り付けられた状態の斜視図である。なお、キャリッジ68の基台部68aは、液体噴射ヘッド4が搭載される部分であり、被記録媒体Sの記録面と水平に配置される。また、図5ではキャリッジ68の基台部68aのみを図示し、その他の部分は図示を省略している。
(Carriage unit)
FIG. 5 is a perspective view of the carriage unit 62 and is a perspective view of the state in which the liquid ejecting head 4 is attached to the base portion 68 a of the carriage 68. The base portion 68a of the carriage 68 is a portion on which the liquid ejecting head 4 is mounted, and is disposed horizontally with the recording surface of the recording medium S. In FIG. 5, only the base portion 68a of the carriage 68 is shown, and the other portions are not shown.
 キャリッジ68は、アルミニウム合金やステンレスなどの金属材料で形成されている。キャリッジ68の基台部68aには、液体噴射ヘッド4の取付基板40を収容可能な収容部として溝部70が形成されている。溝部70は、Z方向から見て、液体噴射ヘッド4より一回り大きい略長方形状に形成されている。なお、溝部70の平面視略中央には、液体噴射ヘッド4から噴射されたインク滴が通過する開口が形成されており、溝部70の+Y方向の端部には液体噴射ヘッド4のノズルプレート14と当接する規制部55(図14参照)が形成されている。 The carriage 68 is formed of a metal material such as aluminum alloy or stainless steel. A groove portion 70 is formed in the base portion 68 a of the carriage 68 as a housing portion that can accommodate the mounting substrate 40 of the liquid jet head 4. The groove portion 70 is formed in a substantially rectangular shape that is slightly larger than the liquid jet head 4 when viewed from the Z direction. In addition, an opening through which the ink droplet ejected from the liquid ejecting head 4 passes is formed in the approximate center in the plan view of the groove portion 70, and the nozzle plate 14 of the liquid ejecting head 4 is formed at the end portion in the + Y direction of the groove portion 70. A restricting portion 55 (see FIG. 14) is formed.
 図3に戻り、液体噴射ヘッド4の取付基板40における+Y方向の側面には、+Y方向に突出する第1突起47が形成されている。この第1突起47が、溝部70の+Y方向の側面に当接することで、液体噴射ヘッド4がキャリッジ68に対してY方向に位置決めされるようになっている。また、液体噴射ヘッド4の取付基板40における+X方向の側面には、+X方向に突出する一対の第2突起48a,48bが形成されている。そのうち一方の第2突起48aは取付基板40の-Y方向側寄りの位置に形成され、他方の第2突起48bは取付基板40の+Y方向側寄りの位置に形成されている。これら一対の第2突起48a,48bが、溝部70の+X方向の側面に当接することで、液体噴射ヘッド4がキャリッジ68に対してX方向に位置決めされるようになっている。 3, first protrusions 47 protruding in the + Y direction are formed on the side surface in the + Y direction of the mounting substrate 40 of the liquid jet head 4. The first protrusion 47 is in contact with the side surface in the + Y direction of the groove portion 70 so that the liquid ejecting head 4 is positioned in the Y direction with respect to the carriage 68. A pair of second protrusions 48 a and 48 b projecting in the + X direction are formed on the side surface in the + X direction of the mounting substrate 40 of the liquid jet head 4. Of these, one second protrusion 48 a is formed at a position near the −Y direction side of the mounting substrate 40, and the other second protrusion 48 b is formed at a position near the + Y direction side of the mounting substrate 40. The pair of second protrusions 48 a and 48 b abut on the side surface in the + X direction of the groove 70, so that the liquid ejecting head 4 is positioned in the X direction with respect to the carriage 68.
(回動固定機構)
 次に、キャリッジ68と液体噴射ヘッド4との連結箇所の構成(回動固定機構)について説明する。
 図5、図6に示すように、キャリッジ68の基台部68aの上面には凹部69が形成され、凹部69に回動固定機構80が設けられている。回動固定機構80は、Y方向に移動可能なスライドアーム71と、スライドアーム71とともにY方向に移動可能なスライドプレート81と、スライドプレート81の移動にともなってX方向およびY方向に移動可能なヘッド固定板82と、液体噴射ヘッド4が連結されたヘッド固定板82およびスライドプレート81を回動可能な回動アーム83と、回動アーム83の回動中心となる回動軸84と、を備えている。
(Rotation fixing mechanism)
Next, the configuration (rotation fixing mechanism) of the connection portion between the carriage 68 and the liquid ejecting head 4 will be described.
As shown in FIGS. 5 and 6, a recess 69 is formed on the upper surface of the base portion 68 a of the carriage 68, and a rotation fixing mechanism 80 is provided in the recess 69. The rotation fixing mechanism 80 is movable in the X direction and the Y direction along with the slide arm 71 movable in the Y direction, the slide plate 81 movable in the Y direction together with the slide arm 71, and the movement of the slide plate 81. A head fixing plate 82, a rotating arm 83 that can rotate the head fixing plate 82 and the slide plate 81 connected to the liquid ejecting head 4, and a rotating shaft 84 that serves as a rotation center of the rotating arm 83. I have.
 凹部69は、基台部68aの-Y方向側の端部から溝部70に連接する大きさで形成されている。凹部69の上面69aにはY方向に沿って一対のラック72,73が設けられている。一対のラック72,73には後述する歯車部100が噛合するラックギヤ74が形成されている。また、一対のラック72,73は、スライドアーム71の幅と略同一の大きさの間隔を空けて平行に配置されている。さらに一対のラック72,73のX方向およびY方向の略中間の位置にはネジ穴(不図示)が形成されており、スライドアーム71を配置した状態で押さえネジ75を螺合することにより、スライドアーム71をY方向に移動可能に支持することができる。 The concave portion 69 is formed to have a size connecting to the groove portion 70 from the end portion on the −Y direction side of the base portion 68a. A pair of racks 72 and 73 are provided on the upper surface 69a of the recess 69 along the Y direction. The pair of racks 72 and 73 is formed with a rack gear 74 that meshes with a gear unit 100 described later. Further, the pair of racks 72 and 73 are arranged in parallel with an interval of approximately the same size as the width of the slide arm 71. Furthermore, a screw hole (not shown) is formed at a substantially intermediate position between the pair of racks 72 and 73 in the X direction and the Y direction, and by screwing the holding screw 75 in a state where the slide arm 71 is arranged, The slide arm 71 can be supported so as to be movable in the Y direction.
 図7に示すように、スライドアーム71は、凹部69の上面69aに当接される平板部76と、平板部76の+Y方向端部におけるX方向の両端に立設され、回動軸84が挿通される貫通孔77がそれぞれ形成された回動軸支持部78,78と、を備えている。平板部76にはY方向に沿って開口された長孔79が形成されている。この長孔79に押さえネジ75を挿通して、押さえネジ75をキャリッジ68のネジ穴に螺合することにより、スライドアーム71をY方向に沿って移動可能に支持することができる。なお、スライドアーム71をキャリッジ68に取り付けると、一対のラック72,73によりスライドアーム71のX方向の移動は規制され、スライドアーム71はY方向のみに移動可能になっている。 As shown in FIG. 7, the slide arm 71 is erected at both ends in the X direction at the flat plate portion 76 that is in contact with the upper surface 69 a of the concave portion 69 and the + Y direction end portion of the flat plate portion 76, and the rotation shaft 84 is provided. Rotating shaft support portions 78 and 78 each having a through-hole 77 to be inserted are provided. The flat plate portion 76 is formed with a long hole 79 opened along the Y direction. The slide arm 71 can be supported so as to be movable in the Y direction by inserting a press screw 75 into the long hole 79 and screwing the press screw 75 into the screw hole of the carriage 68. When the slide arm 71 is attached to the carriage 68, the movement of the slide arm 71 in the X direction is restricted by the pair of racks 72 and 73, and the slide arm 71 can move only in the Y direction.
 図8に示すように、スライドプレート81は、後述する回動アーム83の平板部101に当接される平板部85と、平板部85の-Y方向端部におけるX方向の両端に立設され、回動軸84が挿通される貫通孔86がそれぞれ形成された回動軸支持部87,87と、を備えている。平板部85には、平面視においてX方向およびY方向にそれぞれ所定間隔空けた位置に2本の押さえネジ88,89を螺合できるネジ穴(不図示)が形成されている。つまり、2本の押さえネジ88,89を結ぶ直線が、X方向およびY方向と交差するように構成されている。また、平板部85における+X側の側面には+X方向に突出した板状の規制部90が形成され、-X側の側面には-X方向に突出した板状の規制部91が形成されている。規制部90,91は、凹部69に設けられた板バネ部材92,92に嵌合されることにより-Z方向から+Z方向へ押圧され、液体噴射ヘッド4のZ方向の位置決めをするようになっている。なお、規制部90,91および板バネ部材92,92は互いに嵌合容易にするためにテーパ部がそれぞれ形成されている。 As shown in FIG. 8, the slide plate 81 is erected at both ends in the X direction at the flat plate portion 85 that comes into contact with the flat plate portion 101 of the rotating arm 83 described later, and the −Y direction end portion of the flat plate portion 85. , Rotation shaft support portions 87, 87 each having a through hole 86 through which the rotation shaft 84 is inserted. The flat plate portion 85 is formed with a screw hole (not shown) into which two holding screws 88 and 89 can be screwed at positions spaced apart from each other in the X direction and the Y direction in plan view. That is, the straight line connecting the two holding screws 88 and 89 is configured to intersect the X direction and the Y direction. Further, a plate-like restricting portion 90 projecting in the + X direction is formed on the side surface of the flat plate portion 85 on the + X side, and a plate-like restricting portion 91 projecting in the −X direction is formed on the side surface on the −X side. Yes. The restricting portions 90 and 91 are pressed from the −Z direction to the + Z direction by being fitted to the leaf spring members 92 and 92 provided in the recess 69, thereby positioning the liquid ejecting head 4 in the Z direction. ing. The restricting portions 90 and 91 and the leaf spring members 92 and 92 are each formed with a tapered portion to facilitate fitting.
 図9に示すように、ヘッド固定板82は、スライドプレート81の平板部85に摺動可能に当接される平板部93と、平板部93の+Y方向にクランク配置された平板部94と、平板部93と平板部94とを連結する連結部97と、を備えている。平板部93には、押さえネジ88,89が摺動可能な長孔95が形成されている。長孔95は、2本の押さえネジ88,89を結ぶ直線と同一の方向に開口が延設されている。つまり、スライドプレート81をY方向に移動させた場合、ヘッド固定板82はX方向およびY方向に移動可能になっている(後に詳述する)。また、平板部94にはZ方向に延設された一対のネジ穴96,96が形成されている。ネジ穴96,96は、液体噴射ヘッド4の取付基板40のネジ挿通孔43,43(図2参照)に対応した位置に形成され、ネジ38,38(図5参照)をネジ挿通孔43,43に通して、ネジ穴96,96で螺合することにより、液体噴射ヘッド4とヘッド固定板82とを連結することができる。 As shown in FIG. 9, the head fixing plate 82 includes a flat plate portion 93 that is slidably contacted with the flat plate portion 85 of the slide plate 81, a flat plate portion 94 that is disposed in the + Y direction of the flat plate portion 93, and And a connecting portion 97 that connects the flat plate portion 93 and the flat plate portion 94. The flat plate portion 93 has a long hole 95 in which the holding screws 88 and 89 can slide. The long hole 95 has an opening extending in the same direction as a straight line connecting the two holding screws 88 and 89. That is, when the slide plate 81 is moved in the Y direction, the head fixing plate 82 is movable in the X direction and the Y direction (described in detail later). The flat plate portion 94 is formed with a pair of screw holes 96 extending in the Z direction. The screw holes 96, 96 are formed at positions corresponding to the screw insertion holes 43, 43 (see FIG. 2) of the mounting substrate 40 of the liquid jet head 4, and the screws 38, 38 (see FIG. 5) are connected to the screw insertion holes 43, 43. The liquid ejecting head 4 and the head fixing plate 82 can be connected by being threaded through the screw holes 96 and 96.
 図10に示すように、回動アーム83は、凹部69に対して当接・離反可能に構成される平板部101と、平板部101の-Y方向端部におけるX方向の両端に立設され、回動軸84が挿通される長孔98,98がそれぞれ形成された回動軸案内部99,99と、を備えている。長孔98は、平板部101が凹部69に当接した状態において、Y方向に沿って開口されている。つまり、長孔98に挿通される回動軸84がY方向に沿って移動できるようになっている。なお、回動軸84が長孔98の-Y方向端部に位置したときに、回動軸84が回動アーム83の回動中心になるように構成されている。また、回動軸案内部99における外周の一部には、ラック72,73に形成されたラックギヤ74と噛合する歯車部100が形成されている。歯車部100とラックギヤ74とが噛合することで、回動アーム83が回動軸84を中心に回動するようになっている。 As shown in FIG. 10, the pivot arm 83 is provided upright at both ends in the X direction at the −Y direction end of the flat plate portion 101 and the flat plate portion 101 configured to be able to come into contact with and separate from the recess 69. , And rotation shaft guide portions 99, 99 each having a long hole 98, 98 through which the rotation shaft 84 is inserted. The long hole 98 is opened along the Y direction in a state where the flat plate portion 101 is in contact with the recess 69. That is, the rotation shaft 84 inserted through the long hole 98 can move along the Y direction. The rotation shaft 84 is configured to be the rotation center of the rotation arm 83 when the rotation shaft 84 is positioned at the end of the elongated hole 98 in the −Y direction. A gear portion 100 that meshes with a rack gear 74 formed on the racks 72 and 73 is formed on a part of the outer periphery of the rotation shaft guide portion 99. When the gear unit 100 and the rack gear 74 are engaged with each other, the rotation arm 83 rotates about the rotation shaft 84.
 図6に戻り、回動固定機構80の各部材を組み合わせた状態で、回動軸84は内側に配されたスライドプレート81の回動軸支持部87,87の貫通孔86,86および該回動軸支持部87,87のX方向外側に配されたスライドアーム71の回動軸支持部78,78の貫通孔77,77に挿通され、さらに回動軸支持部78,78のX方向外側に配された回動アーム83の回動軸案内部99,99の長孔98,98に挿通された状態で配されている。 Returning to FIG. 6, in a state where the members of the rotation fixing mechanism 80 are combined, the rotation shaft 84 has the through- holes 86, 86 of the rotation shaft support portions 87, 87 of the slide plate 81 arranged on the inside and It is inserted into the through- holes 77, 77 of the rotation shaft support portions 78, 78 of the slide arm 71 arranged on the outer side in the X direction of the dynamic shaft support portions 87, 87, and further outside of the rotation shaft support portions 78, 78 in the X direction. It is arranged in a state where it is inserted through the long holes 98, 98 of the rotation shaft guide portions 99, 99 of the rotation arm 83 disposed in the.
 そして、スライドアーム71およびスライドプレート81がY方向に移動すると、同じく回動軸84もY方向に移動するようになっている。このとき、回動軸84は回動アーム83の長孔98に沿って移動する。なお、回動アーム83の回動軸案内部99,99は、歯車部100がラックギヤ74に噛合している。 When the slide arm 71 and the slide plate 81 are moved in the Y direction, the rotation shaft 84 is also moved in the Y direction. At this time, the rotation shaft 84 moves along the long hole 98 of the rotation arm 83. Note that the rotation shaft guide portions 99 and 99 of the rotation arm 83 have the gear portion 100 meshed with the rack gear 74.
(液体噴射ヘッドの回動・固定方法)
 次に、本実施形態のキャリッジユニットにおける液体噴射ヘッドの回動・固定方法について図11~図16を用いて説明する。なお、ここでは液体噴射ヘッド4をメンテナンスのためにキャリッジ68の基台部68aに対して起き上がらせた状態から、液体噴射ヘッド4をキャリッジ68の基台部68aに固定させるまでの動きについて説明する。
(Rotating / fixing method of liquid ejecting head)
Next, a method for rotating and fixing the liquid ejecting head in the carriage unit of this embodiment will be described with reference to FIGS. Here, the movement from the state where the liquid ejecting head 4 is raised with respect to the base portion 68a of the carriage 68 for maintenance to the time when the liquid ejecting head 4 is fixed to the base portion 68a of the carriage 68 will be described. .
 図11に示すように、基台部68aに対して回動アーム83の平板部101が略90°度回動した状態に保持することで、液体噴射ヘッド4のノズルプレート14が水平方向に向く。この状態で、図示しないメンテナンス装置を用いて液体噴射ヘッド4のメンテナンスを実行する。メンテナンスが完了したら、液体噴射ヘッド4を基台部68aに固定するためにスライドアーム71を+Y方向(矢印方向)に押圧して移動開始する。なお、スライドアーム71を移動させるには図示しないモータなどの駆動装置を用いる。 As shown in FIG. 11, the nozzle plate 14 of the liquid ejecting head 4 is oriented in the horizontal direction by holding the flat plate portion 101 of the rotating arm 83 approximately 90 ° with respect to the base portion 68a. . In this state, maintenance of the liquid jet head 4 is performed using a maintenance device (not shown). When the maintenance is completed, the slide arm 71 is pressed in the + Y direction (arrow direction) to start the movement in order to fix the liquid ejecting head 4 to the base portion 68a. In order to move the slide arm 71, a driving device such as a motor (not shown) is used.
 スライドアーム71を移動させると、まず回動アーム83の歯車部100と基台部68aに設けられたラックギヤ74とが噛合して、歯車部100が回動する。歯車部100が回動することで、回動アーム83に支持されているスライドプレート81、ヘッド固定板82およびヘッド固定板82に連結された液体噴射ヘッド4も同時に回動する。なお、歯車部100が回動することで、回動アーム83はラックギヤ74上を+Y方向に移動する。 When the slide arm 71 is moved, first, the gear unit 100 of the rotating arm 83 and the rack gear 74 provided on the base unit 68a mesh with each other, and the gear unit 100 rotates. As the gear unit 100 rotates, the slide plate 81 supported by the rotating arm 83, the head fixing plate 82, and the liquid ejecting head 4 connected to the head fixing plate 82 also rotate simultaneously. As the gear unit 100 rotates, the rotating arm 83 moves on the rack gear 74 in the + Y direction.
 図12に示すように、スライドアーム71を+Y方向にさらに移動させることで、液体噴射ヘッド4が基台部68a側へと徐々に降りてくる。 As shown in FIG. 12, by further moving the slide arm 71 in the + Y direction, the liquid ejecting head 4 gradually descends toward the base portion 68a.
 図13に示すように、回動アーム83の平板部101が基台部68aの凹部69の上面69aに当接した段階で、回動アーム83の回動が完了する。このとき、液体噴射ヘッド4のノズルプレート14は被記録媒体Sの記録面と略平行になる位置で保持されている。 As shown in FIG. 13, the rotation of the rotation arm 83 is completed when the flat plate portion 101 of the rotation arm 83 comes into contact with the upper surface 69a of the recess 69 of the base portion 68a. At this time, the nozzle plate 14 of the liquid jet head 4 is held at a position substantially parallel to the recording surface of the recording medium S.
 図14は図13の状態を別の視点から見た斜視図である。この時点では、液体噴射ヘッド4はまだ基台部68aには固定されていない。そこで、液体噴射ヘッド4を基台部68aに固定するために、スライドアーム71をさらに+Y方向に移動させる。 FIG. 14 is a perspective view of the state of FIG. 13 viewed from another viewpoint. At this time, the liquid ejecting head 4 is not yet fixed to the base portion 68a. Therefore, in order to fix the liquid ejecting head 4 to the base portion 68a, the slide arm 71 is further moved in the + Y direction.
 図15に示すように、スライドアーム71を+Y方向に移動させると、スライドアーム71とスライドプレート81とは回動軸84で連接されているため、スライドプレート81も+Y方向に移動する。このとき回動軸84は長孔98に案内されるようにして+Y方向に移動する。スライドプレート81が+Y方向に移動すると、スライドプレート81に取り付けられた押さえネジ88,89が同じく+Y方向に移動しようとする。ここで、押さえネジ88,89はヘッド固定板82の長孔95に挿通されているため、押さえネジ88,89の移動に応じてヘッド固定板82が移動する。また、長孔95がX方向およびY方向に対して交差する方向に開口されているため、ヘッド固定板82はX方向およびY方向に移動可能である。具体的には、長孔95の長軸の向きが+Y方向から所定角度-X方向側へ傾いた方向で形成されているため、押さえネジ88,89が+Y方向に移動すると、ヘッド固定板82は+X方向および+Y方向に移動できるようになっている。 As shown in FIG. 15, when the slide arm 71 is moved in the + Y direction, the slide arm 71 and the slide plate 81 are connected by the rotation shaft 84, so the slide plate 81 also moves in the + Y direction. At this time, the rotation shaft 84 moves in the + Y direction so as to be guided by the long hole 98. When the slide plate 81 moves in the + Y direction, the holding screws 88 and 89 attached to the slide plate 81 also try to move in the + Y direction. Here, since the holding screws 88 and 89 are inserted through the long holes 95 of the head fixing plate 82, the head fixing plate 82 moves in accordance with the movement of the holding screws 88 and 89. Further, since the long hole 95 is opened in a direction intersecting the X direction and the Y direction, the head fixing plate 82 is movable in the X direction and the Y direction. Specifically, since the direction of the long axis of the long hole 95 is formed in a direction inclined from the + Y direction to the predetermined angle −X direction side, the head fixing plate 82 is moved when the press screws 88 and 89 are moved in the + Y direction. Can move in the + X direction and the + Y direction.
 ここで、スライドプレート81およびヘッド固定板82を+Y方向に移動すると、まず液体噴射ヘッド4が+Y方向に移動する。すると、液体噴射ヘッド4の取付基板40の+Y側の先端部における-X側の端部40aが、基台部68aに設けられた板バネ部材102に当接する。板バネ部材102は、液体噴射ヘッド4の取付基板40を+X方向へ付勢する。さらに、スライドアーム71を+Y方向に移動させると、取付基板40と板バネ部材102との当接箇所が支点となり、スライドプレート81が+Y方向に移動すると、押さえネジ88,89が長孔95内を摺動する。すると、ヘッド固定板82は+X方向および+Y方向に移動し、それに合わせて液体噴射ヘッド4も+X方向および+Y方向へ移動する。 Here, when the slide plate 81 and the head fixing plate 82 are moved in the + Y direction, the liquid ejecting head 4 is first moved in the + Y direction. Then, the −X side end 40a at the + Y side tip of the mounting substrate 40 of the liquid ejecting head 4 comes into contact with the leaf spring member 102 provided on the base portion 68a. The leaf spring member 102 urges the mounting substrate 40 of the liquid ejecting head 4 in the + X direction. Further, when the slide arm 71 is moved in the + Y direction, the contact portion between the mounting substrate 40 and the leaf spring member 102 becomes a fulcrum, and when the slide plate 81 is moved in the + Y direction, the holding screws 88 and 89 are placed in the long holes 95. Slide. Then, the head fixing plate 82 moves in the + X direction and the + Y direction, and the liquid ejecting head 4 also moves in the + X direction and the + Y direction accordingly.
 略同時に、液体噴射ヘッド4の取付基板40の+Y側の先端部における上面40bが、基台部68aに設けられた板バネ部材103に当接する。板バネ部材103は、液体噴射ヘッド4の+Y方向の端部である先端側において、該液体噴射ヘッド4を+Z方向へ付勢する。さらに、スライドプレート81の規制部90,91が、基台部68aに設けられた板バネ部材92,92に嵌合される。板バネ部材92は、液体噴射ヘッド4の-Y方向の端部である根元側において、スライドプレート81を+Z方向へ付勢することにより液体噴射ヘッド4を+Z方向へ付勢する。 At substantially the same time, the upper surface 40b at the front end portion on the + Y side of the mounting substrate 40 of the liquid jet head 4 contacts the leaf spring member 103 provided on the base portion 68a. The plate spring member 103 biases the liquid ejecting head 4 in the + Z direction on the tip side that is the end in the + Y direction of the liquid ejecting head 4. Further, the restricting portions 90 and 91 of the slide plate 81 are fitted into the leaf spring members 92 and 92 provided on the base portion 68a. The plate spring member 92 urges the liquid ejecting head 4 in the + Z direction by urging the slide plate 81 in the + Z direction on the base side that is the end portion in the −Y direction of the liquid ejecting head 4.
 図16に示すように、スライドアーム71を+Y方向にさらに移動させる。すると、液体噴射ヘッド4の取付基板40の端部40aが、板バネ部材102に案内および押圧されて、液体噴射ヘッド4をさらに+X方向へ移動させる。そして、液体噴射ヘッド4の取付基板40に形成された一対の第2突起48a,48b(図3参照)が溝部70の側面に当接するまで液体噴射ヘッド4は+X方向へ移動する。なお、本実施形態では第2突起48bが溝部70の側面に当接した後に、第2突起48aが溝部70の側面に当接することとなる。これにより、液体噴射ヘッド4のX方向の位置決めが完了する。 As shown in FIG. 16, the slide arm 71 is further moved in the + Y direction. Then, the end portion 40a of the mounting substrate 40 of the liquid ejecting head 4 is guided and pressed by the leaf spring member 102 to further move the liquid ejecting head 4 in the + X direction. The liquid ejecting head 4 moves in the + X direction until the pair of second protrusions 48 a and 48 b (see FIG. 3) formed on the mounting substrate 40 of the liquid ejecting head 4 abuts on the side surface of the groove portion 70. In the present embodiment, the second protrusion 48 a comes into contact with the side surface of the groove portion 70 after the second protrusion 48 b comes into contact with the side surface of the groove portion 70. Thereby, the positioning of the liquid ejecting head 4 in the X direction is completed.
 また、略同時に、液体噴射ヘッド4の取付基板40に形成された第1突起47が溝部70の側面に当接する。これにより、液体噴射ヘッド4のY方向の位置決めが完了する。 At approximately the same time, the first protrusion 47 formed on the mounting substrate 40 of the liquid jet head 4 contacts the side surface of the groove portion 70. Thereby, the positioning of the liquid ejecting head 4 in the Y direction is completed.
 さらに、液体噴射ヘッド4の先端側において、液体噴射ヘッド4の取付基板40の上面40bが板バネ部材103により+Z方向に押圧されるとともに、取付基板40が溝部70に形成された規制部55(図15参照)に当接することにより液体噴射ヘッド4の先端側におけるZ方向の位置決めが完了する。また、略同時に、板バネ部材92,92がスライドプレート81の規制部90,91を付勢することにより、液体噴射ヘッド4の根元側におけるZ方向の位置決めが完了する。これにより、液体噴射ヘッド4のZ方向の位置決めが完了する。 Further, on the front end side of the liquid ejecting head 4, the upper surface 40 b of the mounting substrate 40 of the liquid ejecting head 4 is pressed in the + Z direction by the leaf spring member 103, and the restricting portion 55 ( 15), the positioning in the Z direction on the tip side of the liquid jet head 4 is completed. At substantially the same time, the leaf spring members 92 and 92 urge the restricting portions 90 and 91 of the slide plate 81, whereby the positioning of the liquid ejecting head 4 in the Z direction is completed. Thereby, the positioning of the liquid ejecting head 4 in the Z direction is completed.
 液体噴射ヘッド4のXYZ方向の位置決めが完了した時点で、液体噴射ヘッド4はキャリッジ68の基台部68aに固定されることとなる。なお、液体噴射ヘッド4が基台部68aに固定された状態で、液体噴射ヘッド4のノズルプレート14と液体噴射記録装置1に供給される被記録媒体Sの記録面とは平行になっている。また、スライドアーム71をY方向に移動させるための駆動装置(不図示)には、トルクリミッターが設けられており、液体噴射ヘッド4がキャリッジ68の所望の位置に配置固定された状態で保持されることとなる。 When the positioning of the liquid ejecting head 4 in the XYZ directions is completed, the liquid ejecting head 4 is fixed to the base portion 68 a of the carriage 68. In the state where the liquid jet head 4 is fixed to the base portion 68a, the nozzle plate 14 of the liquid jet head 4 and the recording surface of the recording medium S supplied to the liquid jet recording apparatus 1 are parallel to each other. . A driving device (not shown) for moving the slide arm 71 in the Y direction is provided with a torque limiter, and the liquid ejecting head 4 is held in a fixed position at a desired position of the carriage 68. The Rukoto.
 一方、液体噴射ヘッド4がキャリッジ68に固定された状態で、液体噴射ヘッド4を基台部68aから固定解除して、メンテナンスのために液体噴射ヘッド4を引き起こすには、上述した動作とは逆に、スライドアーム71を-Y方向に移動させるだけで実現することができる。 On the other hand, in the state where the liquid ejecting head 4 is fixed to the carriage 68, the liquid ejecting head 4 is released from the base 68a and the liquid ejecting head 4 is caused for maintenance. In addition, this can be realized simply by moving the slide arm 71 in the -Y direction.
 本実施形態によれば、キャリッジ68に対して液体噴射ヘッド4を移動させるスライドアーム71をY方向に沿って移動させる簡便な機構で、液体噴射ヘッド4がキャリッジ68におけるXYZ方向のすべての方向の位置決めがなされる。また、板バネ部材92,102,103で液体噴射ヘッド4を押圧することにより、液体噴射ヘッド4を所望の位置の方向へ確実に案内するとともに、所望の位置で保持させることができる。したがって、キャリッジ68に対する液体噴射ヘッド4の位置決め精度を向上することができる。
 また、液体噴射ヘッド4をキャリッジ68に取り付けた後に、さらに位置決め調整作業を行う必要がないため、生産効率を向上することができる。また、液体噴射ヘッド4を取り付け・取り外しする際の位置再現性に優れているため、被記録媒体Sへの記録精度を向上することができる。
According to the present embodiment, the liquid ejecting head 4 moves in all directions in the XYZ directions of the carriage 68 with a simple mechanism that moves the slide arm 71 that moves the liquid ejecting head 4 with respect to the carriage 68 along the Y direction. Positioning is done. Further, by pressing the liquid ejecting head 4 with the leaf spring members 92, 102, and 103, the liquid ejecting head 4 can be reliably guided in the desired position and held at the desired position. Therefore, the positioning accuracy of the liquid jet head 4 with respect to the carriage 68 can be improved.
In addition, after the liquid ejecting head 4 is attached to the carriage 68, it is not necessary to perform further positioning adjustment work, so that the production efficiency can be improved. In addition, since the position reproducibility when attaching / detaching the liquid jet head 4 is excellent, the recording accuracy on the recording medium S can be improved.
 また、板バネ部材92,103を液体噴射ヘッド4のY方向の両側に対応する位置に配置したため、液体噴射ヘッド4のY方向の両側で+Z方向に略均等な力で押圧することができ、位置決め精度をさらに向上することができる。 Further, since the leaf spring members 92 and 103 are disposed at positions corresponding to both sides of the liquid ejecting head 4 in the Y direction, they can be pressed with a substantially equal force in the + Z direction on both sides of the liquid ejecting head 4 in the Y direction. The positioning accuracy can be further improved.
 また、液体噴射ヘッド4の取付基板40の側面に第1突起47および第2突起48a,48bをそれぞれ形成したため、第1突起47および第2突起48a,48bが溝部70の側面に当接して液体噴射ヘッド4の位置決めがされるため、液体噴射ヘッド4の位置決めを精度良く行なうことができる。 In addition, since the first protrusion 47 and the second protrusions 48a and 48b are formed on the side surface of the mounting substrate 40 of the liquid ejecting head 4, the first protrusion 47 and the second protrusions 48a and 48b come into contact with the side surface of the groove portion 70 to form liquid. Since the ejection head 4 is positioned, the liquid ejection head 4 can be accurately positioned.
 また、溝部70の+Y方向端部に液体噴射ヘッド4の取付基板40が当接される規制部55を形成したため、液体噴射ヘッド4のZ方向の位置決めを精度良く行なうことができる。 Further, since the restricting portion 55 with which the mounting substrate 40 of the liquid ejecting head 4 is brought into contact is formed at the + Y direction end portion of the groove portion 70, the liquid ejecting head 4 can be accurately positioned in the Z direction.
 さらに、キャリッジ68に対して液体噴射ヘッド4を回動させる回動アーム83を配し、スライドアーム71をY方向に沿って移動させるだけで、液体噴射ヘッド4がキャリッジ68に対して回動できるように構成したため、簡便な機構で液体噴射ヘッド4を回動させることができる。また、液体噴射ヘッド4をキャリッジ68に対して回動可能に構成することにより、液体噴射ヘッド4をキャリッジ68から引き起こした状態でメンテナンスを行うことができる。したがって、液体噴射ヘッド4を記録領域外へ一旦移動させてからメンテナンスを行う必要がなくなり、効率よくメンテナンスを行うことができる。また、メンテナンス時に必要なメンテナンス装置を記録領域の側方に設置する必要がなくなるため、装置幅を縮小することができる。 Furthermore, the liquid ejecting head 4 can be rotated with respect to the carriage 68 simply by arranging the rotating arm 83 for rotating the liquid ejecting head 4 with respect to the carriage 68 and moving the slide arm 71 along the Y direction. Since it comprised in this way, the liquid jet head 4 can be rotated with a simple mechanism. Further, by configuring the liquid ejecting head 4 to be rotatable with respect to the carriage 68, maintenance can be performed in a state where the liquid ejecting head 4 is raised from the carriage 68. Therefore, it is not necessary to perform maintenance after the liquid ejecting head 4 is once moved out of the recording area, and the maintenance can be performed efficiently. Further, since it is not necessary to install a maintenance device necessary for maintenance at the side of the recording area, the device width can be reduced.
 そして、液体噴射記録装置1は、上述のキャリッジユニット62と、キャリッジユニット62を移動させる走査手段6と、被記録媒体Sを搬送する一対の搬送手段2,3と、を備えているため、キャリッジ68に対して精度良く液体噴射ヘッド4が位置決めされ、液体噴射ヘッド4のノズル孔13から被記録媒体Sの記録面に対して精度良くインクを噴射することが可能になる。したがって、記録精度に優れた液体噴射記録装置1を提供することができる。 The liquid jet recording apparatus 1 includes the carriage unit 62 described above, the scanning unit 6 that moves the carriage unit 62, and the pair of transport units 2 and 3 that transport the recording medium S. The liquid ejecting head 4 is positioned with respect to 68 with high accuracy, and ink can be ejected from the nozzle holes 13 of the liquid ejecting head 4 onto the recording surface of the recording medium S with high accuracy. Therefore, it is possible to provide the liquid jet recording apparatus 1 with excellent recording accuracy.
 なお、本発明は、上述した実施形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲において、上述した実施形態に種々の変更を加えたものを含む。すなわち、実施形態で挙げた具体的な材料や層構成などはほんの一例に過ぎず、適宜変更が可能である。
 例えば、上記実施形態では1個のキャリッジ68に4個の液体噴射ヘッド4を搭載したが、1個のキャリッジ68に搭載する液体噴射ヘッド4の個数は、3個以下でも5個以上でもよい。
 また、上記実施形態では複数の液体噴射ヘッド4を直線状に配列したが、千鳥状に配列してもよい。
 また、上記実施形態では液体噴射ヘッド4の長手方向(ノズル孔13の配列方向)がキャリッジ68の副走査方向と直交するように液体噴射ヘッド4を配置したが、液体噴射ヘッド4の長手方向がキャリッジ68の副走査方向と直角以外の角度で交差するように液体噴射ヘッド4を配置してもよい。これにより、主走査方向における液体噴射ピッチが小さくなるので、高精細な記録を行うことができる。
Note that the present invention is not limited to the above-described embodiments, and includes various modifications made to the above-described embodiments without departing from the spirit of the present invention. In other words, the specific materials and layer configurations described in the embodiments are merely examples, and can be changed as appropriate.
For example, in the above embodiment, four liquid ejecting heads 4 are mounted on one carriage 68, but the number of liquid ejecting heads 4 mounted on one carriage 68 may be three or less or five or more.
In the above embodiment, the plurality of liquid jet heads 4 are arranged in a straight line, but may be arranged in a staggered manner.
In the above embodiment, the liquid ejecting head 4 is arranged so that the longitudinal direction of the liquid ejecting head 4 (arrangement direction of the nozzle holes 13) is orthogonal to the sub-scanning direction of the carriage 68. However, the longitudinal direction of the liquid ejecting head 4 is The liquid ejecting head 4 may be disposed so as to intersect with the sub-scanning direction of the carriage 68 at an angle other than a right angle. As a result, the liquid ejection pitch in the main scanning direction is reduced, so that high-definition recording can be performed.
 また、上記実施形態では、第1突起47および第2突起48a,48bを液体噴射ヘッド4の側面に形成したが、キャリッジ68における溝部70の側面に形成してもよい。
 また、上記実施形態では、キャリッジ68に設けた板バネ部材92,102,103により液体噴射ヘッド4を所望の方向へ押圧するようにしたが、液体噴射ヘッド4に板バネ部材などの付勢部材を設けてもよい。
In the above embodiment, the first protrusion 47 and the second protrusions 48 a and 48 b are formed on the side surface of the liquid ejecting head 4, but may be formed on the side surface of the groove portion 70 in the carriage 68.
In the above-described embodiment, the liquid ejecting head 4 is pressed in a desired direction by the plate spring members 92, 102, and 103 provided on the carriage 68, but an urging member such as a plate spring member is applied to the liquid ejecting head 4. May be provided.
 1…液体噴射記録装置 2,3…搬送手段(被記録媒体搬送手段) 4…液体噴射ヘッド 6…走査手段(キャリッジ移動手段) 13…ノズル孔(噴射孔) 47…第1突起 48a,48b…第2突起 55…規制部 62…キャリッジユニット 68…キャリッジ 70…溝部(収容部) 74…ラックギヤ(ギヤ部) 81…スライドプレート(スライド部材) 82…ヘッド固定板(ヘッド支持部材) 83…回動アーム(回動部材) 84…回動軸 88…押さえネジ(ピン) 89…押さえネジ(ピン) 92…板バネ部材(第2付勢部材) 95…長孔(ガイド溝) 98…長孔 100…歯車部 102…板バネ部材(第1付勢部材) 103…板バネ部材(第2付勢部材) S…被記録媒体  DESCRIPTION OF SYMBOLS 1 ... Liquid jet recording apparatus 2, 3 ... Conveyance means (recording medium conveyance means) 4 ... Liquid jet head 6 ... Scanning means (carriage moving means) 13 ... Nozzle hole (jet hole) 47 ... First protrusion 48a, 48b ... Second projection 55 ... Restriction part 62 ... Carriage unit 68 ... Carriage 70 ... Groove part (accommodation part) 74 ... Rack gear (gear part) 81 ... Slide plate (slide member) 82 ... Head fixing plate (head support member) 83 ... Rotation Arm (rotating member) 84 ... rotating shaft 88 ... holding screw (pin) 89 ... holding screw (pin) 92 ... leaf spring member (second biasing member) 95 ... long hole (guide groove) 98 ... long hole 100 ... Gear part 102 ... Leaf spring member (first biasing member) 103 ... Plate spring member (second biasing member) S ... Recording medium

Claims (8)

  1.  被記録媒体の記録面に液体を噴射する複数の噴射孔が配列された液体噴射ヘッドと、
     該液体噴射ヘッドが固定された状態で、前記記録面と平行に相対移動するキャリッジと、を備えたキャリッジユニットであって、
    前記液体噴射ヘッドにおける前記複数の噴射孔の配列方向を長手方向とし、前記長手方向と直交する方向を短手方向とし、前記長手方向および前記短手方向と直交する方向を高さ方向として、
     前記キャリッジに、
    前記液体噴射ヘッドを支持可能に構成されるとともに、前記長手方向および前記短手方向と交差する方向にガイド溝が形成されたヘッド支持部材と、
     前記ガイド溝に沿って移動可能なピンが形成され、前記長手方向に沿って移動可能なスライド部材と、が備えられ、
     該スライド部材を前記長手方向に沿って移動させることで、
     前記液体噴射ヘッドと前記キャリッジとが当接して、前記キャリッジにおける前記液体噴射ヘッドの前記長手方向に対する位置決めがされ、
     前記ピンが前記ガイド溝に沿って移動することで前記液体噴射ヘッドが前記キャリッジの前記短手方向に沿って移動し、前記液体噴射ヘッドを前記キャリッジの幅方向に押圧可能な第1付勢部材により前記液体噴射ヘッドを押圧し、前記キャリッジにおける前記液体噴射ヘッドの前記短手方向に対する位置決めがされ、
     前記キャリッジに対して前記液体噴射ヘッドを前記キャリッジの高さ方向に押圧可能な第2付勢部材により前記液体噴射ヘッドを押圧し、前記キャリッジにおける前記液体噴射ヘッドの前記高さ方向に対する位置決めがされ、
     前記液体噴射ヘッドが前記キャリッジに対して固定可能に構成されていることを特徴とするキャリッジユニット。
    A liquid ejecting head in which a plurality of ejection holes for ejecting liquid onto the recording surface of the recording medium are arranged;
    A carriage unit that includes a carriage that moves relative to the recording surface in a state where the liquid jet head is fixed,
    The arrangement direction of the plurality of ejection holes in the liquid ejection head is a longitudinal direction, a direction orthogonal to the longitudinal direction is a short direction, and a direction orthogonal to the longitudinal direction and the lateral direction is a height direction,
    On the carriage,
    A head support member configured to support the liquid ejecting head and having a guide groove formed in a direction intersecting the longitudinal direction and the short direction;
    A pin is formed that is movable along the guide groove, and a slide member that is movable along the longitudinal direction.
    By moving the slide member along the longitudinal direction,
    The liquid ejecting head and the carriage are in contact with each other, and the liquid ejecting head in the carriage is positioned in the longitudinal direction;
    A first urging member capable of pressing the liquid ejecting head in the width direction of the carriage by moving the pin along the guide groove and moving the liquid ejecting head along the short direction of the carriage. The liquid ejecting head is pressed by the positioning of the liquid ejecting head on the carriage in the lateral direction,
    The liquid ejecting head is pressed against the carriage by a second urging member capable of pressing the liquid ejecting head in the height direction of the carriage, and the liquid ejecting head in the carriage is positioned in the height direction. ,
    A carriage unit, wherein the liquid ejecting head is configured to be fixed to the carriage.
  2.  前記第2付勢部材が、前記液体噴射ヘッドの前記長手方向における両側に対応した位置に設けられていることを特徴とする請求項1に記載のキャリッジユニット。 The carriage unit according to claim 1, wherein the second urging member is provided at a position corresponding to both sides in the longitudinal direction of the liquid ejecting head.
  3.  前記キャリッジに、前記液体噴射ヘッドの少なくとも一部を収容する収容部が形成され、
     前記長手方向および前記短手方向における前記液体噴射ヘッドおよび前記収容部のうち一方の側面には、前記長手方向に突出する第1突起と、前記短手方向に突出する第2突起と、が形成され、
     前記第1突起および前記第2突起が、前記液体噴射ヘッドおよび前記収容部のうち他方の側面に当接することで、前記液体噴射ヘッドが前記キャリッジに対して前記長手方向および前記短手方向に位置決めされるように構成されていることを特徴とする請求項1または2に記載のキャリッジユニット。
    A storage portion that stores at least a part of the liquid jet head is formed in the carriage,
    A first protrusion that protrudes in the longitudinal direction and a second protrusion that protrudes in the lateral direction are formed on one side surface of the liquid jet head and the accommodating portion in the longitudinal direction and the lateral direction. And
    The liquid projection head is positioned in the longitudinal direction and the lateral direction with respect to the carriage by the first projection and the second projection coming into contact with the other side surface of the liquid ejection head and the accommodating portion. The carriage unit according to claim 1, wherein the carriage unit is configured as described above.
  4.  前記収容部に、前記液体噴射ヘッドにおける前記噴射孔が形成された側の噴射面に当接可能な規制部が形成され、
     前記噴射面が前記規制部に当接することで、前記液体噴射ヘッドが前記キャリッジに対して前記高さ方向に位置決めされるように構成されていることを特徴とする請求項1~3のいずれかに記載のキャリッジユニット。
    A restricting portion capable of contacting the ejection surface on the side where the ejection holes are formed in the liquid ejection head is formed in the housing portion,
    4. The liquid ejecting head according to claim 1, wherein the liquid ejecting head is positioned in the height direction with respect to the carriage by contacting the ejecting surface with the restricting portion. The carriage unit described in.
  5.  前記スライド部材における前記短手方向に沿って回動軸が設けられ、
     少なくとも一部に歯車部が形成され、該歯車部の回動中心に前記回動軸が配設されるとともに、該回動軸が前記長手方向に移動可能な長孔が形成された回動部材が前記ヘッド支持部材に連接され、
     前記キャリッジに、前記歯車部に噛合するギヤ部が前記長手方向に沿って形成され、
    前記液体噴射ヘッドが前記キャリッジに固定されている状態から固定解除する方向に前記スライド部材を前記長手方向に沿って移動させることで、前記回動軸が前記長孔内を移動し、
     前記回動軸が前記回動中心の位置まで移動した後、さらにスライド部材を前記長手方向に沿って移動させることで、前記歯車部が前記ギヤ部に噛合して、前記液体噴射ヘッドが前記回動軸を中心として前記キャリッジに対して回動可能に構成されていることを特徴とする請求項1~4のいずれかに記載のキャリッジユニット。
    A rotation axis is provided along the short direction of the slide member,
    A rotating member in which a gear portion is formed at least in part, the rotating shaft is disposed at the rotating center of the gear portion, and a long hole is formed in which the rotating shaft can move in the longitudinal direction. Is connected to the head support member,
    A gear portion that meshes with the gear portion is formed in the carriage along the longitudinal direction,
    By moving the slide member along the longitudinal direction in a direction to release the fixation from the state where the liquid ejecting head is fixed to the carriage, the rotation shaft moves in the elongated hole,
    After the rotation shaft has moved to the position of the rotation center, the slide member is further moved along the longitudinal direction, so that the gear portion is engaged with the gear portion, and the liquid ejecting head is rotated. The carriage unit according to any one of claims 1 to 4, wherein the carriage unit is configured to be rotatable with respect to the carriage about a moving shaft.
  6.  請求項1~5のいずれかに記載のキャリッジユニットと、
     該キャリッジユニットを移動させるキャリッジ移動手段と、
     前記被記録媒体を搬送する被記録媒体搬送手段と、を備えていることを特徴とする液体噴射記録装置。
    A carriage unit according to any one of claims 1 to 5;
    Carriage moving means for moving the carriage unit;
    And a recording medium conveying means for conveying the recording medium.
  7.  被記録媒体の記録面に液体を噴射する複数の噴射孔が配列された液体噴射ヘッドと、
     該液体噴射ヘッドが固定された状態で、前記記録面と平行に相対移動するキャリッジと、を備えたキャリッジユニットにおける液体噴射ヘッドの固定方法であって、
    前記液体噴射ヘッドにおける前記複数の噴射孔の配列方向を長手方向とし、前記長手方向と直交する方向を短手方向とし、前記長手方向および前記短手方向と直交する方向を高さ方向として、
     前記キャリッジに、
    前記液体噴射ヘッドを支持可能に構成されるとともに、前記長手方向および前記短手方向と交差する方向にガイド溝が形成されたヘッド支持部材と、
     前記ガイド溝に沿って移動可能なピンが形成され、前記長手方向に沿って移動可能なスライド部材と、が備えられ、
     前記ヘッド支持部材に前記液体噴射ヘッドを支持した状態で、前記スライド部材を前記長手方向に沿って移動させることで、
     前記キャリッジに対して前記液体噴射ヘッドを前記長手方向に固定する長手方向固定工程と、
     前記キャリッジに対して前記液体噴射ヘッドを前記短手方向に固定する短手方向固定工程と、
     前記キャリッジに対して前記液体噴射ヘッドを前記高さ方向に固定する高さ方向固定工程と、が完了することを特徴とする液体噴射ヘッドの固定方法。
    A liquid ejecting head in which a plurality of ejection holes for ejecting liquid onto the recording surface of the recording medium are arranged;
    A method of fixing the liquid ejecting head in a carriage unit comprising: a carriage that moves relative to the recording surface in a state where the liquid ejecting head is fixed;
    The arrangement direction of the plurality of ejection holes in the liquid ejection head is a longitudinal direction, a direction orthogonal to the longitudinal direction is a short direction, and a direction orthogonal to the longitudinal direction and the lateral direction is a height direction,
    On the carriage,
    A head support member configured to support the liquid ejecting head and having a guide groove formed in a direction intersecting the longitudinal direction and the short direction;
    A pin is formed that is movable along the guide groove, and a slide member that is movable along the longitudinal direction.
    With the liquid ejecting head supported by the head support member, the slide member is moved along the longitudinal direction,
    A longitudinal fixing step of fixing the liquid jet head in the longitudinal direction with respect to the carriage;
    A short direction fixing step of fixing the liquid ejecting head to the carriage in the short direction;
    A fixing method of a liquid ejecting head, comprising: a height direction fixing step of fixing the liquid ejecting head to the carriage in the height direction.
  8.  前記スライド部材における前記短手方向に沿って回動軸が設けられ、
     少なくとも一部に歯車部が形成され、該歯車部の回動中心に前記回動軸が配設されるとともに、該回動軸が前記長手方向に移動可能な長孔が形成された回動部材が前記ヘッド支持部材に連接され、
     前記キャリッジに、前記歯車部に噛合するギヤ部が前記長手方向に沿って形成され、
     前記液体噴射ヘッドが前記キャリッジに対して固定解除されている状態から固定する方向に前記スライド部材を前記長手方向に沿って移動させることで、
     前記歯車部が前記ギヤ部に噛合して、前記液体噴射ヘッドが前記回動軸を中心として前記キャリッジに対して回動する工程と、
    前記キャリッジと前記回動部材とが当接し、前記液体噴射ヘッドの前記キャリッジに対する回動が停止した後、さらに前記スライド部材を前記長手方向に沿って移動させることで、前記スライド部材に設けられた前記回動軸が前記長孔内を移動する工程と、を有し、
     前記スライド部材が前記長手方向に沿って移動することで、前記長手方向固定工程、前記短手方向固定工程および前記高さ方向固定工程が完了することを特徴とする請求項7に記載の液体噴射ヘッドの固定方法。
     
     
    A rotation axis is provided along the short direction of the slide member,
    A rotating member in which a gear portion is formed at least in part, the rotating shaft is disposed at the rotating center of the gear portion, and a long hole is formed in which the rotating shaft can move in the longitudinal direction. Is connected to the head support member,
    A gear portion that meshes with the gear portion is formed in the carriage along the longitudinal direction,
    Moving the slide member along the longitudinal direction in a direction to fix the liquid ejecting head from a state where the liquid ejecting head is released from being fixed to the carriage;
    The gear portion meshes with the gear portion, and the liquid jet head rotates with respect to the carriage about the rotation axis;
    After the carriage and the rotation member are in contact with each other and the rotation of the liquid ejecting head with respect to the carriage is stopped, the slide member is further moved along the longitudinal direction to be provided on the slide member. A step of moving the rotation shaft in the slot,
    The liquid ejection according to claim 7, wherein the longitudinal direction fixing step, the short side direction fixing step, and the height direction fixing step are completed by moving the slide member along the longitudinal direction. How to fix the head.

PCT/JP2010/052561 2009-03-04 2010-02-19 Carriage unit, liquid discharge recording device, and method of fastening liquid discharge head WO2010101034A1 (en)

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