JP5804922B2 - Printing device - Google Patents

Description

  The present invention relates to a printing apparatus.

  Patent Document 1 describes an ink jet printer that is intended to adjust the parallelism of a carriage shaft with respect to a platen.

Japanese Patent Laid-Open No. 11-208052 (released on August 3, 1999)

  Patent Document 1 is a technique for adjusting the height of a carriage, and the carriage is normally fixed to a Y bar with high accuracy.

  On the other hand, the position of the platen is usually fixed in a state where the accuracy is not so good.

  The present invention has been made in view of such circumstances, and it is a main object of the present invention to provide a technique for fixing a mounting table for a recording medium such as a platen with high positional accuracy and good workability. To do.

  The printing apparatus according to the present invention includes a mounting table on which a recording medium is placed, a support table that supports the mounting table, a height adjustment mechanism that adjusts a height of the mounting table with respect to the support table, and the height adjustment. A position fixing mechanism for fixing the position of the mounting table with respect to the support table at a height adjusted by the mechanism, and a part for operating the height adjusting mechanism for adjustment, and the position for fixing. It is characterized in that the part for operating the position fixing mechanism is on the same side as seen from the mounting table.

  According to said structure, since the mechanism which adjusts the height of mounting bases, such as a platen, with respect to a support base, and the mechanism to fix are provided, the height of a mounting base can be adjusted and it can fix with high precision.

  Further, since the height adjustment and the position fixing operation can be performed from the same side as viewed from the mounting table such as the platen, the height adjustment and the position fixing can be easily performed. For example, the height adjustment mechanism and the position fixing mechanism are located in different locations, and one of them is hidden behind another member to adjust the height and position. In some cases, it may be necessary to remove the other member. In such a case, work for height adjustment and position fixing becomes extremely complicated. According to said structure, since the site | part which operates a height adjustment mechanism and the site | part which operates a position fixing mechanism are on the same side seeing from the said mounting base, in one direction of a mounting base in order to adjust each mechanism You just need to secure the work space. Therefore, height adjustment and position fixing can be performed more easily.

  In the printing apparatus according to the present invention, it is more preferable that the height adjusting mechanism and the position fixing mechanism are on the same straight line.

  Since it is not necessary to provide a space for providing each mechanism according to each mechanism, the space is saved. Thereby, the freedom degree of arrangement | positioning of a cutter, a suction hole, etc. can be improved in the printing apparatus provided with the cutter, the printing apparatus provided with the suction hole on the platen, etc., for example. Therefore, the above configuration is a useful configuration in a printer with a cutter or the like. Further, since adjustment and fixing can be performed with reference to the same straight line, the accuracy of height adjustment is improved.

  In the printing apparatus according to the present invention, the height adjusting mechanism passes through the height adjusting screw through-hole provided in the mounting table, and the side wall of the self-screw is screwed into the inner wall of the height adjusting screw through-hole. And a height adjusting screw having an abutting portion that abuts on the support base, and the contact portion protrudes from the mounting table to the support base side by rotating the height adjusting screw. The protruding height is adjusted, and the height of the mounting table with respect to the support table is adjusted, and the position fixing mechanism is positioned through a through hole for a position fixing screw provided in the mounting table. More preferably a screw.

  Since the height adjusting mechanism and the position fixing mechanism can be realized by a simple member such as a screw, the apparatus can be configured simply.

  In the printing apparatus according to the present invention, the through hole for the height adjusting screw and the through hole for the position fixing screw are the same through hole, and the height adjusting screw includes a depth of the through hole for the position fixing screw. An inner through hole having a straight line parallel to the vertical direction as a central axis is provided, and the position fixing screw penetrates the flange portion having a diameter larger than the diameter of the inner through hole and the inner through hole, and supports the support. It is more preferable that an extending portion that is screwed into a female screw provided on the base is provided.

  Height adjustment and position fixing can be performed with a simple configuration and high accuracy.

  According to the present invention, it is possible to adjust and fix the height of a mounting table such as a platen.

1 is a side sectional view schematically showing a schematic configuration of a printing apparatus according to an embodiment of the present invention. (A) is a side sectional view schematically showing a schematic configuration of an adjustment mechanism in a printing apparatus according to an embodiment of the present invention, and (b) is an outline of a mounting table and a support table around the adjustment mechanism. It is a sectional side view which shows a structure typically, (c) is a perspective view which shows the schematic structure of a height adjustment mechanism typically. FIG. 6 is a top view illustrating an example of an arrangement of adjusting mechanisms in the printing apparatus according to the embodiment of the present invention. It is a sectional side view which shows typically the schematic structure of the adjustment mechanism in the modification of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(Outline of printing device)
FIG. 1 is a side sectional view schematically showing a schematic configuration of a printing apparatus 100 according to an embodiment of the present invention. As shown in FIG. 1, the printing apparatus 100 includes a head 10, a carriage 20, a guide mechanism 30, a platen (mounting table) 40, a bracket (supporting table) 50, and a conveyance roller 60. 1 is an inkjet recording apparatus that records (prints) an image on a medium (recording medium) 1.

  The head 10 is a recording head that ejects ink onto the medium 1. When the carriage 20 drives the head 10 and the transport roller 60 transports the medium 1, the head 10 and / or the medium 1 is relatively moved in the scanning direction and the sub-scanning direction. The guide mechanism 30 is a member that guides the moving direction of the carriage 20.

  The platen 40 is a mounting table that is disposed immediately below the head 10 and mounts the medium 1. That is, the printing apparatus 100 ejects ink from the head 1 while relatively moving the head 10 and / or the medium 1 in a state where the medium 1 is placed on the platen 40. Record (print) an image on

  The bracket 50 is fixed to the printing apparatus 100 and serves as a support for the platen 40. The platen 40 is supported by the bracket 50 and can be adjusted in a direction close to the head 10 and a direction away from the head 10 by an adjusting mechanism described later. Thus, by configuring the platen 40 so that it can be adjusted in the direction of separation from the head 10, the distance between the head 10 and the medium 1 can be adjusted, and the recording quality for the medium 1 can be improved.

(Adjustment mechanism)
The adjustment mechanism includes a height adjustment mechanism that adjusts the height of the platen 40 relative to the bracket 50, and a position fixing mechanism that fixes the position of the platen 40 relative to the bracket 50 at the height adjusted by the height adjustment mechanism. Composed. Since the printing apparatus 100 includes the mechanism for adjusting the height of the platen 40 and the mechanism for fixing the platen 40 with respect to the bracket 50, the height of the platen 40 can be adjusted and fixed.

  Hereinafter, the configuration of the adjusting mechanism in the present embodiment will be described with reference to the drawings. FIG. 2A is a side sectional view schematically showing a schematic configuration of the adjusting mechanism in the printing apparatus 100. FIG. 2B is a side sectional view schematically showing a schematic configuration of the platen 40 and the bracket 50 around the adjustment mechanism. FIG. 2C is a perspective view schematically showing a schematic configuration of the height adjusting mechanism.

  As shown in FIG. 2A, in the present embodiment, the height adjustment mechanism is configured by a height adjustment screw 41, and the position fixing mechanism is configured by a position fixing screw 42.

  The height adjusting screw 41 passes through a through hole (a height adjusting screw through hole, a position fixing screw through hole) 43 provided in the platen 40, and the side wall 41 a of the own screw is screwed into the inner wall 43 a of the through hole 43. To do. The axis of the height adjusting screw 41 is a straight line parallel to the depth direction of the through hole 43, and moves in the depth direction of the through hole 43 with respect to the platen 40 by rotating around the axis. ing. That is, an engagement groove 41c for engaging a screwdriver or the like is formed on the upper surface of the height adjustment screw 41 (the end opposite to the bracket 50), and the height adjustment screw 41 is attached using a screwdriver or the like. By rotating, the height adjusting screw 41 is moved in the depth direction of the through hole 43. Then, the height adjustment screw 41 is protruded from the surface of the platen 40 on the bracket 50 side, and the lower surface (contact portion, end portion on the bracket 50 side) 41b of the height adjustment screw 41 is brought into contact with the bracket 50. Thus, the height of the platen 40 relative to the bracket 50 (the distance D between the platen 40 and the bracket 50) can be adjusted.

  Further, the height adjusting screw 41 is provided with an inner through-hole 44 having a straight line parallel to the depth direction of the through-hole 43 as a central axis. The position fixing screw 42 includes a flange portion 42 a having a diameter larger than that of the inner through hole 44 and an extending portion 42 b that passes through the inner through hole 44 and is screwed into a female screw 51 provided in the bracket 50. . As described above, the inner through hole 44 is a through hole through which the position fixing screw 42 passes, and the position fixing screw 42 is screwed into the bracket 50. Thereby, the position of the platen 40 with respect to the bracket 50 can be fixed at the height adjusted by the height adjusting screw 41. That is, an engagement groove with which a driver or the like is engaged is formed on the upper surface of the flange portion 42a (the end opposite to the bracket 50), and the position fixing screw 42 is rotated by using the driver or the like. The platen 40 is sandwiched between the lower surface of the flange portion 42 a (the end portion on the bracket 50 side) of the position fixing screw 42 and the upper surface of the bracket 50, and the platen 40 and the bracket 50 are fixed.

  It should be noted that the diameter of the flange portion 42 a only needs to be larger than the diameter of the inner through hole 44, and is not necessarily larger than the diameter of the through hole 43. In addition, when the diameter of the collar part 42a is smaller than the diameter of the through-hole 43, the platen 40 and the bracket 50 can be fixed by the lower surface of the collar part 42a coming into contact with the upper surface of the height adjusting screw 41. it can.

  The height adjustment and the position fixing using the adjustment mechanism in the present embodiment can be performed as follows, for example. First, the height adjustment screw 41 is inserted into the through hole 43 of the platen 40 in the state of FIG. 2B to adjust the height of the platen 40 relative to the bracket 50. That is, an engagement groove 41c that engages with a Phillips screwdriver or the like is formed on the upper surface of the height adjustment screw 41, and the height adjustment screw 41 is rotated by rotating the height adjustment screw 41 using a screwdriver or the like. The protrusion height at which the lower surface 41b protrudes from the platen 40 toward the bracket 50 can be adjusted. Thereby, the height of the platen 40 relative to the bracket 50 can be adjusted from the upper surface side of the platen 40 (the side opposite to the bracket 50). Subsequently, the position fixing screw 42 is inserted into the inner through hole 44 of the height adjusting screw 41 and the female screw 51 of the bracket 50, and the height of the platen 40 relative to the bracket 50 is adjusted at the height adjusted by the height adjusting screw 41. Fix the position. For fixing, the position fixing screw 42 is rotated from the upper surface side of the platen 40 by using a screwdriver or the like, and the platen 40 is sandwiched between the lower surface of the flange portion 42 a of the position fixing screw 42 and the upper surface of the bracket 50. 40 and the bracket 50 can be fixed.

  The adjustment mechanism can be provided at one or more positions on the platen 40. FIG. 3 shows an example of the arrangement of the adjusting mechanism in the platen 40. FIG. 3 is a top view of the platen 40 viewed from the side opposite to the bracket 50. As shown in FIG. 3, the adjustment mechanism may be provided at a plurality of locations on the outer edge portion of the platen 40, for example.

(Effect of this embodiment)
Thus, in the present embodiment, the height adjustment and the position fixing operation can be performed from the same side as viewed from the platen 40. Therefore, height adjustment and position fixing can be easily performed. Such a configuration is very advantageous compared to other configurations.

  Because, for example, when the mechanism for adjusting the height and the mechanism for fixing the position are in different locations, it is difficult to design a working space for both mechanisms, and one mechanism is It may be hidden behind other members. In such a case, in order to adjust the height and fix the position, it is necessary to remove the other member, and the work for adjusting the height and fixing the position becomes extremely complicated.

  On the other hand, according to the configuration of the present embodiment, the part for operating the height adjusting mechanism (height adjusting screw 41) and the part for operating the position fixing mechanism (position fixing screw 42) are the same in the platen 40. Since it is on the side (the side opposite to the bracket 50 in the platen 40), it is only necessary to secure a work space in only one direction of the platen 40 in order to adjust each mechanism. Therefore, height adjustment and position fixing can be performed more easily.

  In the present embodiment, the position fixing screw 42 is inserted into the height adjusting screw 41, and includes a height adjusting mechanism (height adjusting screw 41) and a position fixing mechanism (position fixing screw 42). Are on the same straight line.

  By being configured in this way, it is not necessary to provide a space for providing each mechanism in accordance with each mechanism, so that space is saved. Further, since adjustment and fixing can be performed with reference to the same straight line, the accuracy of height adjustment is improved.

  Such a configuration is particularly advantageous when the printing apparatus 100 includes a member to be provided in the vicinity of the platen 40 (for example, a cutter, a heater, a suction fan, etc.). That is, when it is necessary to provide the platen 40 with a special structure such as a cutter groove, a heater wire, a hole for a suction fan, etc., it is possible to provide many structures for height adjustment and position fixing on the platen 40. It is not preferable. This is because the degree of freedom of arrangement of the members is significantly limited. Therefore, it is preferable to save the space by arranging the height adjusting mechanism (height adjusting screw 41) and the position fixing mechanism (position fixing screw 42) on the same straight line as in the present embodiment.

(Modification)
In this embodiment, the part for operating the height adjusting screw 41 for adjustment and the part for operating the position fixing screw 42 for fixing are both opposite to the bracket 50 as viewed from the platen 40. However, the present invention is not limited to this. For example, the part for operating the height adjusting screw 41 for adjustment and the part for operating the position fixing screw 42 for fixing may be on the bracket 50 side as viewed from the platen 40.

  Further, the height adjustment mechanism and the position fixing mechanism do not have to be arranged on the same straight line. For example, a height adjusting screw through hole and a position fixing screw through hole are provided at different positions on the platen 40, and the height adjusting screw 41 is fixed to the height adjusting screw through hole. The screw 42 may be inserted into the through hole for the position fixing screw, and the portion for operating each screw may be on the same side as viewed from the platen 40.

  Even if it is the above structure, if the site | part which operates the height adjustment screw 41 for adjustment, and the site | part which operates the position fixing screw 42 for fixation are on the same side seeing from the platen 40, Since it is only necessary to secure a work space in only one direction of the platen 40 in order to adjust each mechanism, height adjustment and position fixing can be easily performed as in the present embodiment.

  Moreover, in this embodiment, although the height adjustment mechanism and the position fixing mechanism are each comprised with the screw, this invention is not limited to this. For example, a configuration as shown in FIG. That is, as shown in FIG. 4, a nut 45 that is screwed into a male screw 52 extending from the bracket 50 may be provided as a position fixing mechanism instead of the position fixing screw 42.

<Additional notes>
As described above, the printing apparatus 100 according to the embodiment of the present invention includes the platen 40 on which the medium 1 is placed, the bracket 50 that supports the platen 40, and the height adjustment screw that adjusts the height of the platen 40 relative to the bracket 50. 41 and a position fixing screw 42 for fixing the position of the platen 40 with respect to the bracket 50 at a height adjusted by the height adjusting screw 41, and a portion for operating the height adjusting screw 41 for adjustment. The part for operating the position fixing screw 42 for fixing is formed on the same side as viewed from the platen 40.

  According to said structure, since the mechanism which adjusts the height of the platen 40 with respect to the bracket 50 and the mechanism to fix are provided, the height of the platen 40 can be adjusted and it can fix with high precision.

  Further, since the height adjustment and the position fixing operation can be performed from the same side as viewed from the platen 40, the height adjustment and the position fixing can be easily performed. For example, the height adjustment mechanism and the position fixing mechanism are located in different locations, and one of them is hidden behind another member to adjust the height and position. In some cases, it may be necessary to remove the other member. In such a case, work for height adjustment and position fixing becomes extremely complicated. According to the above configuration, since the part for operating the height adjusting screw 41 and the part for operating the position fixing screw 42 are on the same side as viewed from the platen 40, one part of the platen 40 is used to adjust each mechanism. It is only necessary to secure the work space in the direction. Therefore, height adjustment and position fixing can be performed more easily.

  In the present embodiment, the height adjusting screw 41 and the position fixing screw 42 are formed on the same straight line.

  Since it is not necessary to provide a space for providing each mechanism according to each mechanism, the space is saved. Further, since adjustment and fixing can be performed with reference to the same straight line, the accuracy of height adjustment is improved.

  In the present embodiment, the height adjusting screw 41 passes through a height adjusting screw through-hole (for example, the through-hole 43) provided in the platen 40, and the side wall of the own screw is the height adjusting screw through-hole. The lower surface 41b that abuts on the bracket 50 and abuts against the bracket 50 is provided. By rotating the height adjusting screw 41, the lower surface 41b of the height adjusting screw 41 protrudes from the platen 40 toward the bracket 50. The height is adjusted so that the height of the platen 40 relative to the bracket 50 is adjusted, and the position fixing screw 42 is connected to a through hole for position fixing screw (for example, the through hole 43) provided in the platen 40. It is formed to pass.

  Since the height adjusting screw 41 and the position fixing screw 42 can be realized by a simple member called a screw, the apparatus can be configured in a simple manner.

  In the present embodiment, the through hole for height adjustment screw and the through hole for position fixing screw are the same through hole (through hole 43), and the height adjustment screw 41 has a depth of the through hole 43. An inner through-hole 44 having a straight line parallel to the vertical direction as a central axis is provided, and the position fixing screw 42 penetrates the flange 42a having a diameter larger than the diameter of the inner through-hole 44 and the inner through-hole 44, It is formed so as to include an extending portion 42 b that is screwed into a female screw 51 provided on the bracket 50.

  Height adjustment and position fixing can be performed with a simple configuration and high accuracy.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

  The present invention can be used in the field of manufacturing printing apparatuses.

1 media (recording medium)
10 head 20 carriage 30 guide mechanism 40 platen (mounting table)
41 Height adjustment screw (height adjustment mechanism)
41a side wall 41b bottom surface (contact part)
41c engaging groove 42 position fixing screw (position fixing mechanism)
42a ridge part 42b extension part 43 through hole (through hole for height adjustment screw, through hole for position fixing screw)
43a inner wall 44 inner through hole 45 nut (position fixing mechanism)
50 Bracket (support)
51 Female Screw 52 Male Screw 60 Conveying Roller 100 Printing Device

Claims (3)

A mounting table on which a recording medium is placed;
A support table for supporting the mounting table;
A height adjusting mechanism for adjusting the height of the mounting table with respect to the support table;
A position fixing mechanism that fixes the position of the mounting table with respect to the support table at a height adjusted by the height adjusting mechanism,
A portion for operating the height adjustment mechanism for adjusting a site for manipulating the position fixing mechanism for fixing, Ri same side near as viewed from the mounting table,
The height adjusting mechanism is provided with an inner through-hole, and the inner through-hole is a through hole that penetrates the position fixing mechanism, and the position fixing mechanism is the above-described height adjusting mechanism. The printing apparatus , wherein the height adjusting mechanism and the position fixing mechanism are on the same straight line by being inserted into the inner through-hole . A mounting table on which a recording medium is placed;
A support table for supporting the mounting table;
A height adjusting mechanism for adjusting the height of the mounting table with respect to the support table;
A position fixing mechanism that fixes the position of the mounting table with respect to the support table at a height adjusted by the height adjusting mechanism,
The part for operating the height adjusting mechanism for adjustment and the part for operating the position fixing mechanism for fixing are on the same side as viewed from the mounting table,
The height adjusting mechanism passes through the height adjusting screw through-hole provided in the mounting table, the side wall of the self-screw is screwed into the inner wall of the height adjusting screw through-hole, and the height adjusting mechanism contacts the support base. It is a height adjustment screw that has an abutting part that comes into contact,
By rotating the height adjusting screw, the protrusion height at which the abutting portion protrudes from the mounting table toward the support table is adjusted, and the height of the mounting table with respect to the support table is adjusted. And
The position fixing mechanism, printing device you being a position fixing screw passing through the position fixing screw through-hole provided in the mounting table. The through hole for the height adjusting screw and the through hole for the position fixing screw are the same through hole,
The height adjustment screw is provided with an inner through hole having a straight line parallel to the depth direction of the position fixing screw through hole as a central axis,
The position fixing screw includes a flange portion having a diameter larger than that of the inner through hole, and an extending portion that passes through the inner through hole and is screwed into a female screw provided on the support base. The printing apparatus according to claim 2 .

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