JP6311389B2 - Medium support apparatus and recording apparatus - Google Patents

Description

  The present invention relates to a medium support apparatus and a recording apparatus that support a recording medium on which an image is recorded.

  2. Description of the Related Art Conventionally, there is known an ink jet printing apparatus including a tray on which a printing material on which a printing image is recorded is set and a support portion on which the tray is mounted. This support part is provided in the vicinity of the top plate part and the bottom plate part on which the tray is placed on the placement parts provided at four places, and the top plate part is raised and lowered with respect to the bottom plate part. 4 adjustment mechanisms to be adjusted, and the height positions of the four placement portions can be adjusted (see Patent Document 1).

JP 2013-220911 A

  Since the conventional inkjet printing apparatus is provided with four adjustment mechanisms for one top plate part, by adjusting the height position of the placement part provided in the vicinity thereof by one adjustment mechanism, Other adjustment mechanisms are affected, and the height position of the mounting portion provided in the vicinity of the other adjustment mechanisms may fluctuate. In this case, since it is necessary to adjust again about the adjusted mounting part, it takes a long time to adjust the height positions of the four mounting parts.

  An object of the present invention is to provide a medium support device and a recording device that can easily adjust the height positions of a plurality of placement portions on which trays are placed.

  The medium support device of the present invention includes a tray on which a recording medium on which an image is recorded is set, and a tray mounting unit on which the tray is mounted, and the tray mounting unit includes a plurality of mountings on which the trays are mounted. A plurality of mounting portions, and a plurality of adjustment portions for individually adjusting the height positions of the plurality of placement portions with respect to the support portion. It is characterized by having.

  According to this configuration, the height positions of the plurality of placement units on which the trays are placed are individually adjusted by the plurality of adjustment units. For this reason, when the height position of one placement part is adjusted by one adjustment part, other adjustment parts are prevented from being affected, and the height position of the other placement part is changed. Can be suppressed.

  In this case, the support portion includes a plurality of guide portions provided with guide holes for guiding the raising and lowering of the placement portions, a first fixing portion on which the plurality of guide portions are placed, and the plurality of guide portions are fixed. It is preferable that each adjustment portion has an adjustment screw that is screwed into the mounting portion inserted in the guide hole from below and is rotatably engaged with the first fixing portion.

  According to this configuration, when the adjustment screw is rotated forward and backward with respect to the placement portion, the placement portion moves up and down while being guided by the guide hole. Thereby, the height position of a some mounting part can be adjusted individually.

  In this case, it is preferable that a fixing hole is provided on a side surface of each guide portion, and each adjustment portion further includes a fixing screw that passes through the fixing hole and fastens each adjustment portion to each guide portion.

  According to this configuration, after the adjustment screw is rotated forward and backward to adjust the height position of the placement portion, the placement portion can be securely fixed to the position where the height position is adjusted by the fixing screw. .

  In this case, the tray includes a tray body having a medium placement surface on which the recording medium is placed, and a plurality of tray protrusions provided on the surface of the tray body opposite to the medium placement surface. It is preferable that a plurality of tray convex portions be placed on the plurality of placement portions.

  According to this configuration, the tray is supported at a plurality of points by mounting the plurality of tray convex portions on the plurality of mounting portions. On the other hand, in the case where the tray is supported on the surface by the mounting portion, since the support area is large, if there is any unevenness or undulation on the lower surface of the tray, it is easily affected by the unevenness or undulation. On the other hand, according to the present configuration, the support area is reduced, and the influence of unevenness and undulation on the lower surface of the tray can be reduced.

  In this case, it is preferable that each placement portion is provided with an engagement recess that engages with each tray protrusion.

  In this case, the support portion includes a plurality of guide portions provided with guide holes for guiding the raising and lowering of the placement portions, a first fixing portion on which the plurality of guide portions are placed, and the plurality of guide portions are fixed. A second fixing portion mounted on the plurality of guide portions and fixed to the plurality of guide portions. The second fixing portion includes a plurality of second fixing portions corresponding to positions where the plurality of guide portions are provided. It is preferable that a plurality of insertion openings through which the tray protrusions are inserted are provided.

  According to this configuration, the support portion includes the plurality of guide portions and the first fixing portion and the second fixing portion to which the plurality of guide portions are fixed, so that the rigidity of the entire support portion is increased, and the support portion The amount of bending is suppressed. Therefore, when adjusting the height positions of the plurality of placement portions, it is less necessary to consider the amount of bending of the support portion.

  In this case, it is preferable that a positioning convex portion is provided on the surface of the tray body opposite to the medium placement surface, and a positioning hole that engages with the positioning convex portion is provided in the second fixed portion. .

  According to this configuration, the tray can be mounted in the positioning state with respect to the tray mounting portion by engaging the positioning convex portion with the positioning hole.

  A recording apparatus of the present invention includes the above-described medium support device and a recording unit that records an image on a recording medium supported by the medium support device.

  The recording unit is not particularly limited, and, for example, a unit that ejects ink by an inkjet method can be used.

1 is a perspective view of a recording apparatus according to an embodiment of the present invention. FIG. 6 is a right side view around a medium support portion of the recording apparatus. It is a bottom view of a tray. It is a perspective view of a medium support part. It is a top view of a medium support part. FIG. 3 is an exploded perspective view of a medium support unit. FIG. 7 is a cross-sectional view of a medium support section cut along a line VII-VII in FIG. 5. FIG. 6 is a cross-sectional view of the medium support section cut along line VIII-VIII in FIG. 5. It is sectional drawing which shows the modification of a medium support part.

Hereinafter, a recording apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings. This recording apparatus records an image by ejecting ink onto a recording medium such as a T-shirt held by a medium holding unit by an ink jet method.
In the following, description will be made using “up”, “down”, “left”, “right”, “front”, and “rear” shown in the drawings, but these directions are for convenience of explanation, and the present invention is implemented. Is not limited to these directions.

  As shown in FIG. 1, the recording apparatus 1 includes a medium support unit 2 that holds a recording medium M, a horizontally long and substantially rectangular parallelepiped recording unit 3, and a transport unit 5 that transports the medium support unit 2 back and forth. Yes.

  The recording unit 3 records an image on the recording medium M held on the medium support unit 2. The recording unit 3 includes a carriage 7 on which the inkjet head 6 is mounted, and a head moving mechanism (not shown) that moves the inkjet head 6 to the left and right via the carriage 7. The head moving mechanism is constituted by a motor-driven belt mechanism.

  The conveyance unit 5 moves the medium support unit 2 between a front set position and a rear recording start position via an entrance 4 provided on the front surface of the recording unit 3. The transport unit 5 is configured by a motor-driven belt mechanism.

  When recording an image on the recording medium M by the recording apparatus 1, first, the recording medium M is set by the user on the medium support unit 2 moved to the set position. When the recording apparatus 1 receives an instruction to start recording, the transport unit 5 moves the medium support unit 2 from the set position through the entrance / exit 4 to the recording start position. Thereafter, the transport unit 5 intermittently moves the medium support unit 2 forward from the recording start position, and the inkjet head 6 reciprocates left and right with respect to the recording medium M set on the medium support unit 2 that passes therethrough. Ink is ejected. In this way, the recording apparatus 1 performs a recording operation for recording an image on the recording medium M.

  As shown in FIG. 2, the medium support unit 2 includes a tray 11 on which the recording medium M is set, a tray mounting unit 12 on which the tray 11 is detachably mounted, and a tray mounting unit 12 in order from the top. An elevating mechanism 13 for elevating the tray 11 and a column 14 for supporting the elevating mechanism 13 on the transport unit 5 are provided. The user places the recording medium M on the upper surface of the tray 11, that is, the medium placing surface 11 a, and then sets the recording medium M on the tray 11 so that a holding frame (not shown) is fitted into the tray 11.

  The elevating mechanism 13 includes a rotating unit 15 that can rotate with respect to the support column 14 and a lever 16 for rotating the rotating unit 15. A through hole (not shown) through which a positioning shaft portion 17 provided on the lower surface of the tray mounting portion 12 is inserted is provided at the center of the rotating portion 15. Further, on the upper surface of the rotating portion 15, arc-shaped staircase portions (not shown) are respectively formed in regions divided into three in the circumferential direction. Three elevating convex portions 18 provided on the lower surface of the tray mounting portion 12 are engaged with the three staircase portions. By operating the lever 16 forward and backward, each lifting projection 18 moves up and down along each staircase, and the tray mounting portion 12 and the tray 11 mounted thereon are moved up and down.

  As shown in FIG. 3, the tray 11 includes a substantially rectangular plate-shaped tray body 21, four tray convex portions 22 provided in a rectangular shape at four locations on the lower surface of the tray body 21, and the tray body 21. And two positioning pins 23 provided at the front and rear in a substantially middle portion on the left and right sides of the bottom surface of the bottom surface. The four tray convex portions 22 are placed on four placement portions 27 described later. The four tray convex portions 22 are formed in a substantially cylindrical shape whose tips are rounded in a substantially hemispherical shape, and their lengths are substantially uniform. On the other hand, the positioning pin 23 is inserted into a positioning hole 58 described later. The positioning pin 23 is longer than the tray convex portion 22 and is formed in a substantially cylindrical shape with a chamfered tip.

As shown in FIGS. 4 to 8, the tray mounting portion 12 is configured in a substantially flat rectangular parallelepiped shape as a whole. The tray mounting unit 12 includes four mounting units 27 each having a substantially short cylindrical shape on which the above-described four tray convex portions 22 are mounted, a support unit 20 that supports the four mounting units 27 so as to be movable up and down, and a support. And an adjustment unit 28 that individually adjusts the height positions of the four placement units 27 with respect to the unit 20. The support part 20 is an abbreviated portion provided in a box body composed of a box part 24 whose upper part is opened, a cover part 25 for closing the upper part of the box part 24, and the box part 24 and the cover part 25. It has four rectangular parallelepiped guide portions 26. The adjustment unit 28 includes four adjustment screws 31 and four fixing screws 32. Each guide portion 26 is fixed to the box portion 24 by four box side fastening screws 33 and is fixed to the lid portion 25 by four lid side fastening screws 34. The fixing screw 32, the box side fastening screw 33, and the lid side fastening screw 34 are constituted by small screws. The adjusting screw 31 will be described later.
The box portion 24 is an example of a “first fixing portion”, and the lid portion 25 is an example of a “second fixing portion”.

  The box portion 24 is configured by forming a sheet metal into a shallow box shape having a substantially rectangular shape in a plan view by bending or drilling. The box portion 24 includes a bottom surface portion 41, a box front surface portion 42, a box rear surface portion 43, a box left side surface portion 44 and a box right side surface portion 45. Four guide portions 26 are placed and fixed on the box portion 24 at the four corners of the bottom surface portion 41.

  An adjustment screw insertion hole 46 and four box-side fastening screw insertion holes 47 provided around the adjustment screw insertion hole 46 are provided at four corners of the bottom surface portion 41, respectively. The adjustment screw 31 is inserted into the adjustment screw insertion hole 46 from below. The box-side fastening screw 33 is inserted into the box-side fastening screw insertion hole 47 from below. Further, at both left and right end portions of the box front face portion 42 and the box rear face portion 43, cutout portions 48 that are deeply cut out in a rectangular shape from above are provided. The notch 48 corresponds to a window 59 described later, and becomes a screw introduction port 49 into which the fixing screw 32 is inserted from the front or the rear.

  Similarly to the box portion 24, the lid portion 25 is configured by forming a sheet metal into a substantially rectangular shape in plan view by bending or drilling. The lid portion 25 includes a top surface portion 51, a lid front surface portion 52, a lid rear surface portion (not shown), a lid left side surface portion 54, and a lid right side surface portion (not shown). The lid portion 25 has the four corners of the top surface portion 51 placed on the upper surfaces of the four guide portions 26, and the four guide portions 26 are fixed.

At the four corners of the top surface portion 51, a circular insertion opening 56 and four lid-side fastening screw insertion holes 57 provided around the insertion opening 56 are provided. The above-described tray convex portion 22 is inserted into the insertion opening 56 from above. The lid side fastening screw 34 is inserted from above into the lid side fastening screw insertion hole 57. In addition, two positioning holes 58 are provided in the front and rear in the substantially right and left intermediate portions of the top surface portion 51. The positioning pin 23 is inserted into the positioning hole 58. Thereby, the tray 11 is mounted on the tray mounting portion 12 in a positioning state. The front positioning hole 58 is formed in a circular shape, and the rear positioning hole 58 is formed in a substantially rectangular shape. Furthermore, a substantially rectangular window 59 is formed in the left and right ends of the lid front surface 52 and the lid rear surface. The window portion 59 coincides with the notch portion 48 and becomes a screw introduction port 49 into which the fixing screw 32 is inserted from the front or the rear.
Depending on the length of the positioning pin 23, a positioning hole into which the positioning pin 23 is inserted may be provided in the bottom surface portion 41 of the box portion 24 described above.

The guide portion 26 has a circular guide hole 61 formed so as to penetrate vertically, four fastening screw holes 62 formed so as to penetrate vertically at four corners in plan view, and a vertically long fixed slot formed on the front or rear surface. 63 is provided.
The fixed long hole 63 is an example of a “fixed hole”.

  The guide hole 61 guides the mounting portion 27 placed in the hole so as to be movable up and down. Among the four guide portions 26, for the two guide portions 26 provided in the front, the guide hole 61 is provided closer to the front than the center, and for the two guide portions 26 provided in the rear, the guide hole 61. Is provided closer to the rear than the center.

  The box-side fastening screw 33 is screwed into the fastening screw hole 62 from below via the box-side fastening screw insertion hole 47. The guide portion 26 is fixed to the box portion 24 by tightening the box-side fastening screw 33. Further, the lid-side fastening screw 34 is screwed into the fastening screw hole 62 from above via the lid-side fastening screw insertion hole 57. The guide portion 26 is fixed to the lid portion 25 by tightening the lid-side fastening screw 34. The fastening screw hole 62 does not need to be formed through vertically, and although not particularly illustrated, a screw hole into which the lid-side fastening screw 34 is screwed and a screw hole into which the box-side fastening screw 33 is screwed are formed. It may be provided separately.

  Among the four guide portions 26, the fixed elongated hole 63 is provided on the front surface of the guide portion 26 with respect to the two guide portions 26 provided on the front side, and is guided on the guide portions 26 provided on the rear side. It is provided on the rear surface of the portion 26. The fixing screw 32 is inserted into the fixed long hole 63 from the front or the rear. The fixed long hole 63 is formed to have a length corresponding to the up and down width of the mounting portion 27. In addition, the raising / lowering width | variety of the mounting part 27 is 5 mm, for example.

  The mounting portion 27 is formed in a columnar shape having a slightly smaller diameter than the guide hole 61 to the extent that it can slide up and down with respect to the guide hole 61. The mounting portion 27 has an adjustment screw hole 71 formed at the approximate center of the lower surface, a circular engagement recess 72 formed at the approximate center of the upper surface, and a fixed screw hole 73 formed on the outer peripheral side surface. Is provided. The adjustment screw hole 71 is formed in a stepped hole shape, and the adjustment screw 31 is screwed from below. The tray convex portion 22 engages with the engaging concave portion 72 from above. That is, the tip of the tray convex portion 22 abuts against the bottom surface of the engaging concave portion 72. The fixing screw 32 is screwed into the fixing screw hole 73 from the front or rear via the fixing long hole 63. The mounting portion 27 is fixed to the guide portion 26 by tightening the fixing screw 32.

  The adjustment screw 31 is for individually adjusting the height positions of the four placement portions 27. By adjusting the height positions of the four placement portions 27, the inclination of the medium placement surface 11a of the tray 11 placed on the four placement portions 27 can be adjusted. Thus, the gap between the nozzle surface of the inkjet head 6 and the medium placement surface 11a can be adjusted to be substantially uniform over the entire area of the medium placement surface 11a.

  The adjustment screw 31 includes a head portion 81, a neck portion 82 that is continuous with the head portion 81, and a male screw portion 83 that is continuous with the neck portion 82. The head 81 has a hexagonal hole and a flange. A washer 84 is provided between the head 81 and the bottom surface of the bottom 41 of the box 24. An annular groove 85 into which the retaining ring 86 is fitted is formed in the neck portion 82. The retaining ring 86 is fitted in an annular groove 85 located on the upper surface side of the bottom surface portion 41, thereby retaining the adjustment screw 31 so as to be rotatable with respect to the box portion 24. The male screw portion 83 is screwed into the adjustment screw hole 71 of the placement portion 27.

  When the adjustment screw 31 is rotated forward and backward with respect to the placement portion 27 by the screw mechanism configured between the adjustment screw 31 and the adjustment screw hole 71, the placement portion 27 is guided by the guide hole 61. Go up and down. Thereby, the height position of the four mounting parts 27 can be adjusted individually.

  The fixing screw 32 is screwed into the fixing screw hole 73 through the fixing long hole 63, thereby fixing the mounting portion 27 to the guide portion 26. Although the mounting portion 27 is supported by the box portion 24 via the adjustment screw 31, there is a possibility that the mounting portion 27 may move up and down due to backlash between the adjustment screw 31 and the adjustment screw hole 71. After adjusting the height position of the mounting portion 27, the mounting portion 27 can be securely fixed at the position where the height position is adjusted by tightening the fixing screw 32.

  As described above, according to the medium support portion 2 of the present embodiment, the height positions of the four placement portions 27 on which the tray 11 is placed are individually adjusted by the four adjustment screws 31. For this reason, when the height position of one placement part 27 is adjusted with one adjustment screw 31, it is prevented that other adjustment screws 31 are influenced, and the height position of other placement part 27 is changed. Fluctuation can be suppressed. Therefore, it is not necessary to adjust the placement unit 27 that has been adjusted again, and the height positions of the plurality of placement units 27 on which the tray 11 is placed can be easily adjusted.

According to the medium support part 2 of the present embodiment, the four trays 22 are placed on the four placement parts 27, whereby the tray 11 is supported at four points. On the other hand, in the case where the tray 11 is supported on the surface by the mounting portion 27, since the support area is large, if there is any unevenness or waviness on the lower surface of the tray 11, it is easily affected by the unevenness or waviness. On the other hand, according to the configuration of the present embodiment, the support area is reduced, and the influence of unevenness and undulation on the lower surface of the tray 11 can be reduced.
The numbers of the placing portions 27 and the tray convex portions 22 are not particularly limited, but are preferably 3 or more.

  According to the medium support portion 2 of the present embodiment, the support portion 20 includes the four guide portions 26 and the lid portion 25 and the box portion 24 that are fixed above and below the four guide portions 26, so that the support portion The rigidity of the entire 20 is increased, and the amount of bending of the support portion 20 is suppressed. Therefore, when adjusting the height positions of the four placement portions 27, it is less necessary to consider the amount of bending of the support portion 20.

The adjustment unit 28 is not particularly limited, and for example, a screw mechanism, a cam mechanism, or the like can be used.
Further, the recording medium M is not particularly limited, but for example, a cloth can be preferably used, and a clothing such as a T-shirt can be particularly preferably used.

  FIG. 9 shows a modification of the medium support unit 2. As shown in FIG. 9, the engaging recess 72 of the mounting portion 27 is used as a screw hole, and an insertion hole 92 into which a screw (not shown) is inserted is provided in the tray main body 21 and the tray convex portion 22. The tray main body 21 and the tray convex portion 22 may be fixed to the mounting portion 27 by being screwed to 72. In this way, the position of the tray 11 with respect to the placement unit 27 can be fixed.

  2: medium support unit, 11: tray, 12: tray mounting unit, 20: support unit, 27: placement unit, 28: adjustment unit, M: recording medium

Claims (6)

A tray on which a recording medium is set;
A tray mounting portion on which the tray is mounted,
The tray mounting portion is
A plurality of placement portions on which the tray is placed;
A support part for supporting the plurality of placement parts individually to be movable up and down;
A plurality of adjustment units for individually adjusting the height positions of the plurality of placement units with respect to the support unit;
The support part is
A plurality of guide portions provided with guide holes for guiding the raising and lowering of the respective placement portions;
A plurality of guide portions, and a first fixing portion to which the plurality of guide portions are fixed, and
A fixing hole is provided on a side surface of each guide part,
Each adjustment unit is
An adjustment screw threadably engaged with each mounting portion placed in the guide hole from below and rotatably engaged with the first fixing portion;
A medium support device comprising: a fixing screw that passes through the fixing hole and fastens the adjusting portion with respect to the guide portion. The tray
A tray body having a medium placement surface on which the recording medium is placed;
A plurality of tray protrusions provided on a surface of the tray body opposite to the medium placement surface,
The medium support device according to claim 1 , wherein the plurality of tray convex portions are placed on the plurality of placement portions. A tray on which a recording medium is set;
A tray mounting portion on which the tray is mounted,
The tray mounting portion is
A plurality of placement portions on which the tray is placed;
A support part for supporting the plurality of placement parts individually to be movable up and down;
A plurality of adjustment units for individually adjusting the height positions of the plurality of placement units with respect to the support unit;
The tray
A tray body having a medium placement surface on which the recording medium is placed;
A plurality of tray protrusions provided on a surface of the tray body opposite to the medium placement surface,
The plurality of tray convex portions are placed on the plurality of placement portions,
The support part is
A plurality of guide portions provided with guide holes for guiding the raising and lowering of the respective placement portions;
A plurality of guide portions, a first fixing portion on which the plurality of guide portions are fixed; and
A second fixing portion mounted on the plurality of guide portions and fixed to the plurality of guide portions;
Wherein the second fixing portion, the plurality of guide portions in correspondence with the position provided that, the medium supporting device, wherein a plurality of insertion openings in which the plurality of tray projections inserted is provided. 4. The medium support device according to claim 2, wherein each of the mounting portions is provided with an engagement recess that engages with each of the tray protrusions. 5. A positioning convex portion is provided on the surface of the tray body opposite to the medium placement surface,
The medium support device according to claim 3 , wherein the second fixing portion is provided with a positioning hole that engages with the positioning convex portion. The medium support device according to any one of claims 1 to 5 ,
A recording unit for recording an image on the recording medium supported by the medium support device;
A recording apparatus comprising:

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