JP2009070459A - Conveying mechanism and information processing device provided with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conveying mechanism for minimizing influence on tension of a bending angle of a belt by simple means and achieving highly accurate servo control, and to provide an information processing device provided with the same. <P>SOLUTION: The conveying mechanism comprises a belt drive mechanism 100 in which a motor belt 127 is wound on a rotary pulley 126 rotated by a tray motor 124 being a drive source and a transmission pulley 123 held rotatably, a medium tray 51 is moved by running of the motor belt 127 by rotation of the rotation pulley 126. The mechanism is provided with a tension application mechanism 161 applying tension by energizing the a tension roller 163 held so as to be move for the motor belt 127 to the motor belt 127 by an energizing member 164, the bending angle θ of the motor belt 127 by the tension roller 163 can be adjusted by changing distance between a rotation axis 121 of the transmission pulley 123 and a rotation pulley 126 and a drive axis 125. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a transport mechanism having a belt wound around a drive pulley and a driven pulley, and an information processing apparatus including the transport mechanism.

In recent years, a disk dubbing device that writes data to a large number of media (information recording media) such as blank CDs (Compact Discs) and DVDs (Digital Versatile Discs), and media production by performing data writing and label printing Media processing apparatuses such as CD / DVD publishers that can be issued are known. This type of media processing apparatus includes a drive that writes data to the media and a printer that prints on the label side of the media.
This type of media processing apparatus is a belt drive in which a timing belt is wound around a driving pulley and a driven pulley, and the tray is fixed to the timing belt in order to horizontally move a tray on which a medium is placed by a printer or a drive. Some have a mechanism (see, for example, Patent Document 1).

US Pat. No. 5,927,208

By the way, in a conveyance mechanism using a drive motor such as a servo motor, when the motor power is transmitted via a belt, a belt that is stretched between the drive pulley and the driven pulley of the drive motor in order to perform servo control with high accuracy. It is necessary to stabilize the load by keeping the tension within a certain range.
For this reason, the belt tension is managed by pressing the roller urged by the tension spring against a part of the belt, but due to variations in the belt length and the distance between the drive pulley and the driven pulley, the roller The bending angle of the belt due to the pressing changes, and the belt tension varies greatly due to the influence of the change in the bending angle.

  Accordingly, an object of the present invention is to provide a transport mechanism and an information processing apparatus equipped with the transport mechanism that can perform highly accurate servo control by minimizing the influence of the bending angle of the belt on the tension by simple means. It is to provide.

  In the transport mechanism according to the present invention, which can solve the above-described problems, a belt is wound around a drive pulley that is rotated by a drive source and a driven pulley that is rotatably supported, and the belt is rotated by the rotation of the drive pulley. A transport mechanism for moving a moving body by traveling, comprising: a tension applying mechanism that applies tension to the belt by a biasing member that is movably supported with respect to the belt; The bend angle of the belt by the tension applying member can be adjusted by displacing the distance between the rotation axes of the driving pulley and the driven pulley.

  According to the transport mechanism having this configuration, the distance between the rotation shafts of the driving pulley and the driven pulley is displaced to adjust the belt bending angle by the tension applying member so that the belt bending angle is substantially constant. The influence on the tension can be extremely reduced. Thereby, it becomes possible to perform highly accurate control of a drive source with a simple structure, and the conveyance precision of a moving body can be improved.

Further, it is preferable that the tension applying mechanism has a mark indicating a position of the tension roller at which a bending angle of the belt becomes a predetermined angle.
According to this configuration, the distance between the rotation shafts of the driving pulley and the driven pulley is displaced and the position of the tension roller is adjusted by the mark so that the belt bending angle can be easily adjusted to be substantially constant. The influence on the tension can be reduced.

Moreover, it is preferable that the tension applying member supports a tension roller that contacts an outer peripheral surface of the belt between the driving pulley and the driven pulley.
According to this configuration, by adjusting the pressing force of the tension roller that contacts the outer peripheral surface of the belt by displacing the distance between the rotation shafts of the driving pulley and the driven pulley, it is possible to easily adjust the bending angle of the belt. The influence of the belt deflection angle on the tension can be reduced.

Preferably, the tension roller is supported by a swingable lever, and the mark indicates a swing position of the lever at which a bending angle of the belt becomes a predetermined angle.
According to this structure, the distance between the rotation shafts of the driving pulley and the driven pulley is displaced and the swinging position of the lever is adjusted to the mark so that the belt bending angle can be easily adjusted to be substantially constant, and the belt bending can be achieved. The influence of the angle on the tension can be reduced.

  An information processing apparatus according to the present invention is an information processing apparatus including a media tray that moves while holding media, and a processing unit that performs information processing on the media on the media tray. The media tray is moved as the moving body by the transport mechanism according to the invention.

  According to the information processing apparatus having this configuration, the influence of the belt deflection angle on the tension can be extremely reduced by adjusting the belt deflection angle so that the belt deflection angle is substantially constant. Control can be performed, the accuracy of transporting the media tray can be improved, and high-precision processing for the media can be realized.

Embodiments of a transport mechanism and an information processing apparatus including the same according to the present invention will be described below with reference to the drawings.
In the present embodiment, a case where the present invention is applied to a media processing apparatus including a publisher will be described as an example.
FIG. 1 is an external perspective view of a publisher (media processing apparatus) with each part closed, FIG. 2 is an external perspective view of the publisher with each part open, and FIG. 3 is a front top view of the publisher with the case removed. FIG. 4 is a perspective view of a label printer portion installed in the publisher.

  As shown in FIG. 1, a publisher 1 is a media processing apparatus that writes data on a disk-shaped medium such as a CD or DVD and prints on a label surface of the medium. I have. Opening and closing doors 3 and 4 that can be opened and closed to the left and right are attached to the front surface of the case 2. An operation surface 5 on which display lamps, operation buttons, and the like are arranged is provided at the upper left end portion of the case 2, and a mounting leg portion 6 is provided at the lower end of the case 2 so as to protrude downward. Are provided on both the left and right sides. A drawer mechanism 7 is provided at a position between the left and right legs 6.

As shown in FIG. 2, the opening / closing door 3 on the right side of the front view opens and closes the opening 8 on the front side of the publisher 1. For example, when setting an unused (blank) medium M through the opening 8. Alternatively, it is a door that opens and closes when the created medium M is taken out through the opening 8.
The opening / closing door 4 on the left side when viewed from the front is for opening and closing when the ink cartridge 12 of the label printer 11 shown in FIG. 3 is replaced. When the opening / closing door 4 is opened, a plurality of cartridges arranged in the vertical direction are opened. The cartridge mounting portion 14 having the holder 13 is exposed.

  Inside the case 2 of the publisher 1, there are a media stacker 21 as a media storage unit capable of stacking a plurality of (for example, 50) unused media M for which data writing processing has not been performed, and a plurality of (for example, 50) Sheets of unused media M or a media stacker 22 as a media storage unit in which the created media M are stored are arranged vertically so that the central axes of the media M are the same. Each of the media stacker 21 and the media stacker 22 is detachable from a predetermined position.

  The upper media stacker 21 is provided with a pair of left and right arc-shaped frame plates 24 and 25, thereby allowing the media M to be received from the upper side and accommodated in a coaxially stacked state. The operation of accommodating or replenishing the media M in the media stacker 21 can be easily performed by opening the door 3 and taking out the media stacker 21.

  The lower media stacker 22 also has the same structure, and includes a pair of left and right arc-shaped frame plates 27 and 28, thereby constituting a stacker that can receive the media M from the upper side and can be accommodated in a coaxially stacked state. Has been.

  A media transport mechanism 31 is disposed behind the media stacker 21 and the media stacker 22. The media transport mechanism 31 has a vertical guide shaft 35 that is vertically spanned between the main body frame 30 and the top plate 33 of the chassis 32. A transport arm 36 is supported on the vertical guide shaft 35 so as to be able to move up and down and turn. The transport arm 36 can be moved up and down along the vertical guide shaft 35 by a drive motor 37 and can be swung left and right about the vertical guide shaft 35.

Two media drives 41 stacked one above the other are arranged behind the upper and lower stackers 21 and 22 and the media transport mechanism 31, and a carriage 62 (to be described later) of the label printer 11 is disposed below these media drives 41. It is arranged to be movable.
The media drive 41 has media trays 41a that can move between a data writing position on the media M and a media delivery position for receiving and delivering the media M, respectively.

  Further, the label printer 11 has a media tray 45 that is movable between a print position where label printing can be performed on the label surface of the medium M and a medium delivery position where the medium M is received and delivered.

  FIG. 3 shows a state in which the media tray 41a of the upper and lower media drives 41 is pulled out to the front and is in the media delivery position, and a state in which the media tray 45 of the lower label printer 11 is in the media delivery position on the front side. Yes. The label printer 11 is an ink jet printer, and ink cartridges 12 of various colors (black, cyan, magenta, yellow, light cyan, and light magenta in this embodiment) are used as the ink supply mechanism 60, and these ink cartridges. 12 is mounted on each cartridge holder 13 of the cartridge mounting section 14 from the front.

  Here, a gap is formed between the pair of left and right frame plates 24 and 25 of the media stacker 21 and between the pair of left and right frame plates 27 and 28 of the media stacker 22 so that the transport arm 36 of the media transport mechanism 31 can move up and down. Has been. Further, a gap is opened between the upper and lower media stackers 21 and the media stacker 22 so that the transport arm 36 of the media transport mechanism 31 pivots horizontally and can be positioned directly above the media stacker 22. Further, when both the media trays 41a are pushed into the media drive 41, the transport arm 36 of the media transport mechanism 31 is lowered to access the media tray 45 at the media delivery position.

  The transport arm 36 of the media transport mechanism 31 is further below the height position of the media tray 45 with both media trays 41a positioned at the data writing position and the media tray 45 positioned at the back printing position. It is possible to descend to. Below the media delivery position of the media tray 45, the transport arm 36 is a guide hole through which the released media M is lowered and released, and a media stacker (separate stacker) described later is mounted. A guide hole 65 is formed.

The drawer mechanism 7 has a drawer tray 70 that can be pulled out from the main body frame 30 to be opened and housed and closed under the main body frame 30. The drawer tray 70 is provided with a stacker portion 71 that is recessed downward. When the drawer tray 70 is in the storage position (closed position), the stacker unit 71 is positioned below the guide hole 65, and the center of the stacker unit 71 is the center of the media tray 41a and the media tray 45 at the delivery position. The axes are positioned so as to be the same. The stacker unit 71 receives the medium M inserted through the guide hole 65 and accommodates the medium M in a relatively small amount (for example, about 5 to 10 sheets). The stacker unit 71 can receive the medium M from above and can be accommodated in a state of being stacked coaxially.
When the medium M accommodated in the stacker unit 71 is taken out, the operator pulls out the drawer tray 70 from the main body frame 30 by placing a finger on the latching unit 200 (see FIG. 2) provided on the front surface of the drawer tray 70.

  A media stacker (separate stacker) 72 having a larger amount of media M than the stacker unit 71 can be attached to and detached from the stacker unit 71 and the guide hole 65 of the drawer tray 70 in the stored state (see FIG. 3). . The media stacker 72 also includes a pair of arc-shaped frame plates 73 and 74, which allows the media M to be received from above and accommodate a plurality of sheets (for example, 50 sheets) in a coaxially stacked state. . A gap is formed between the pair of arcuate frame plates 73 and 74 so that the transport arm 36 of the media transport mechanism 31 can be moved up and down. In addition, a handle 75 that is gripped by the user at the time of attachment / detachment is provided on the upper portion of one frame plate 74.

When the media stacker 72 is attached, the unused media M is taken out from the upper media stacker 21, recorded and printed by the media drive 41 and the label printer 11, and then stored in the media stacker 72. be able to.
Also, for example, the upper media stacker 21 and the lower media stacker 22 are loaded with the maximum number of unused media M (50 sheets + 50 sheets), respectively, and the total number of lower media stackers 22 (50 sheets). ) Media M are sequentially processed and accommodated in the media stacker 72. Next, the entire media stacker 21 of the upper media stacker 21 (50 sheets) is sequentially processed to form an empty lower media stacker 22 To house. In this way, the maximum number of sheets (50 + 50 sheets) of media M in the upper media stacker 21 and the lower media stacker 22 is processed at once (batch processing mode).

  If the media stacker 72 is removed, the unused media M is taken out from the upper media stacker 21 or the lower media stacker 22, and data recording and printing are performed by the media drive 41 and the label printer 11. It can be accommodated in the stacker portion 71 of the drawer tray 70 in the accommodated state.

  As a result, the completed medium M can be taken out of the stacker unit 71 by pulling out the drawer tray 70. That is, even during processing on the medium M, it is possible to take out one sheet or a plurality of sheets at a time from the completed medium M with the open / close door 3 closed (external discharge mode).

  Here, by the combined operation of raising and lowering the transport arm 36 of the media transport mechanism 31 and turning to the left and right, the media M is transferred to the media stacker 21, the media stacker 22, the stacker unit 71 (or the media stacker 72) of the drawer tray 70, It is appropriately conveyed between the media tray 41a of the media drive 41 and the media tray 45 of the label printer 11.

Next, the configuration of the label printer 11 will be described.
As shown in FIGS. 2 to 4, the label printer 11 includes a carriage 62 having an ink jet head 61, and this carriage 62 is supported along a carriage guide shaft 63 so as to be reciprocally movable in the horizontal direction. . The carriage 62 includes a carriage belt 64 that is a timing belt that extends horizontally along the carriage guide shaft 63, and a carriage motor 65 that drives the carriage belt 64. A flexible ink supply tube 73 connected to the ink supply mechanism 71 is connected to the carriage 62 of the label printer 11.

  The inkjet head 61 mounted on the carriage 62 has a nozzle surface facing downward, and the media tray 51 can reciprocate horizontally in the front-rear direction at the lower position of the inkjet head 61. The media tray 51 has a right end supported by a guide shaft 102 extending horizontally in the front-rear direction, and a left end supported by a guide rail 104 extending horizontally in the front-rear direction in a slidable state. . The drive mechanism for the media tray 51 is also configured to include a tray belt 113 that extends horizontally in the front-rear direction and a tray motor 124 for driving the tray belt 113.

The media tray 51 includes, on the upper surface of a rectangular plate, a low circular convex portion 51a that is in contact with the outer peripheral end surface of the media and restricts the movement of the media.
Moreover, the center part of this convex part 51a is equipped with the three vertical nail | claws (illustration omitted) arrange | positioned on the concentric circle at intervals of 120 degree | times. The three vertical claws can move together in the radial direction, and when the media tray 51 moves to the media delivery position, it moves inward in the radial direction by a cam mechanism (not shown).

  When the media is dropped into the convex portion 51a from above with the label surface facing upward at the media delivery position, three vertical claws are inserted into the center hole of the media. Thereafter, when the tray motor 124 is driven to move the media tray 51 to the rear side (the right rear side in FIG. 4) along the guide shaft 102, the three vertical claws are moved in the radial direction by the action of the cam. The three vertical claws are pressed against the inner peripheral surface of the center hole of the media from the inside. As a result, the media is held on the media tray 51. If the media tray 51 is moved into the printing area of the inkjet head 61, the inkjet head 61 can perform predetermined printing on the label surface of the media.

Next, a belt drive mechanism that is a transport mechanism for moving the media tray 51 will be described.
FIG. 5 is a schematic plan view of the belt drive mechanism, FIG. 6 is a schematic side view of the belt drive mechanism, and FIG. 7 is a schematic side view of the main part of the belt drive mechanism.
The media tray 51 moved by the belt driving mechanism 100 is arranged such that a guide shaft 102 extending horizontally in the front-rear direction of the apparatus passes through a slide bearing 101 provided on one side of the media tray 51, and on the other side. The provided slide piece 103 is slidably mounted on a guide rail 104 extending in the front-rear direction of the apparatus. Thus, the media tray 51 is supported by the guide shaft 102 and the guide rail 104 so as to be slidable in the front-rear direction of the apparatus.

The guide shafts 102 are arranged at intervals along a frame 105 disposed in the front-rear direction of the apparatus, and both ends thereof are fixed to fixing plates 106 provided at both ends of the frame 105.
In the frame 105, a tray driving pulley 111 is rotatably provided in the vicinity of the end portion on the rear side of the apparatus, and a tray driven pulley 112 is rotatably provided in the vicinity of the end portion on the front side of the apparatus. A tray belt 113 as a timing belt is wound around the tray driving pulley 111 and the tray driven pulley 112, and one side portion of the media tray 51 is fixed to the tray belt 113 by a belt clamp 114. ing. Thereby, the media tray 51 is slid along the traveling direction when the tray belt 113 travels.

  An encode plate 122 and a transmission pulley (driven pulley) 123 are fixed to the rotating shaft 121 of the tray driving pulley 111. A tray motor 124 is provided below the frame 105, and a motor pulley (drive pulley) 126 is provided on the drive shaft 125 of the tray motor 124. A motor belt 127 that is a timing belt is wound around the transmission pulley 123 and the motor pulley 126. In the running of the motor belt 127, the motor pulley 126 functions as a driving pulley, and the transmission pulley 123 functions as a driven pulley.

  A plurality of position detection slits are formed at equal intervals along the periphery of the encode plate 122, and a position detector (not shown) detects the position detection slits of the encode plate 122. . The position of the media tray 51 can be detected based on the detection signal from the position detector.

  As shown in FIG. 6, the tray driven pulley 112 is supported in a state of being biased in a direction away from the tray driving pulley 111 by the tension applying mechanism 141. The tension applying mechanism 141 includes a pulley support portion 142 supported by the frame 105, and the tray driven pulley 112 is rotatably supported by the pulley support portion 142. The pulley support portion 142 is slidably supported with respect to the frame 105, and the pulley support portion 142 is attached between the pulley support portion 142 and the frame 105 in a direction away from the tray drive pulley 111. An urging member 143 made of an urging tension spring is provided. As a result, the tray driven pulley 112 is urged by the tension applying mechanism 141 in a direction away from the tray driving pulley 111, and a predetermined tension is applied to the tray belt 113 wound around the tray driving pulley 111 and the tray driven pulley 112. Is granted.

  The motor belt 127 is also provided with a tension applying mechanism 161. The tension applying mechanism 161 includes a lever 162 whose base end is supported by the frame 105 so as to be swingable, and a tension roller (tension applying member) 163 rotatably supported by the swing end of the lever 162. In addition, the oscillating end of the lever 162 is urged toward the motor belt 127 (upper side) in the direction intersecting the motor belt 127 by the urging member 164 made of a tension spring. In the tension applying mechanism 161, the tension roller 163 presses and urges the outer peripheral portion of the motor belt 127, and a predetermined tension is applied to the motor belt 127 wound around the motor pulley 126 and the transmission pulley 123. The tension fluctuation is absorbed by the displacement of the tension roller 163.

  In the belt driving mechanism 100, when the tray motor 124 is driven and the driving shaft 125 is rotated, the rotational force of the driving shaft 125 is fed to the tray by the motor belt 127 wound around the motor pulley 126 and the transmission pulley 123. It is transmitted to the rotating shaft 121 of the driving pulley 111, and the tray driving pulley 111 is rotated. When the tray driving pulley 111 is thus rotated, the tray belt 113 wound around the tray driving pulley 111 and the tray driven pulley 112 travels, whereby the media tray 51 fixed to the tray belt 113 is moved to the apparatus. Is moved in the front-rear direction.

  Here, the tension T of the motor belt 127 is determined by the vector of the urging force P pressed by the urging member 164 via the tension roller 163 and the force decomposed along the bending angle Θ. Since the tension roller 163 is disposed in the vicinity of the approximate center between the transmission pulley 123 and the motor pulley 126 and the bending angle Θ is substantially the same, it is expressed by the following relational expression.

  T = P / 2sinΘ

By the way, in general, the amount of bending of the motor belt 127 by the tension roller 163 is used in a small range. However, in this small amount of bending, as shown in the above equation, the change in the tension T with respect to the change in the bending angle Θ. The ratio to do becomes very large.
Then, it changes due to variations in the length of the motor belt 127, variations in the distance between the motor pulley 126 and the transmission pulley 123 of the tray motor 124, and when this deflection angle Θ changes, it greatly affects the tension T of the motor belt 127, Variations occur in the servo control of the tray motor 124.

  For this reason, in this embodiment, in order to make the deflection angle Θ of the motor belt 127 constant as much as possible and suppress the influence on the tension T of the motor belt 127 as much as possible, high-precision servo control is performed. The mechanism 161 is provided with tension adjusting means to suppress variations in the tension T applied to the motor belt 127.

Next, the tension adjusting means will be described.
As shown in FIG. 7, a holding hole 171 into which the driving shaft (rotating shaft) 125 of the tray motor 124 and the flange portion 124 b on the outer peripheral side of the driving shaft 125 can be inserted is formed in the attachment portion of the tray motor 124 in the frame 105. Has been. The holding hole 171 is a long hole along a straight line connecting the rotation shaft 121 of the transmission pulley 123 and the drive shaft 125 of the tray motor 124, and the flange of the tray motor 124 inserted into the holding hole 171. The portion 124 b is movable in the holding hole 171.

Further, fixing holes 172 and 173 are formed through holding holes 171 on both sides of a straight line connecting the rotation shaft 121 of the transmission pulley 123 and the drive shaft 125 of the tray motor 124. In 173, a screw 174 for fixing the tray motor 124 to the frame 105 can be inserted.
One fixing hole 172 of these fixing holes 172 and 173 is a long hole along a straight line connecting the rotating shaft 121 of the transmission pulley 123 and the driving shaft 125 of the tray motor 124, similarly to the holding hole 171. .

As a result, the tray motor 124 in the state where the screws 174 are loosened, the flange portion 124b of the tray motor 124 and the screws 174 are connected to the rotating shaft 121 of the transmission pulley 123 and the tray motor through the holding hole 171 and the one fixing hole 172. The fixed position of the tray motor 124 can be moved by displacing it along a straight line connecting the drive shafts 125 of 124.
Thus, the tension of the motor belt 127 can be adjusted by adjusting the distance between the rotation shaft 121 of the transmission pulley 123 and the drive shaft 125 of the tray motor 124.

  Note that the holding hole 171 and the fixing hole 172 may be formed in an arc shape with the fixing hole 173 as the center. In this case, the tray motor 124 is displaced about the fixing hole 173, whereby the transmission pulley 123. The tension of the motor belt 127 can be adjusted by adjusting the distance between the rotary shaft 121 and the drive shaft 125 of the tray motor 124.

  Further, the lever 162 of the tension applying mechanism 161 has a mark X on the opposite side of the tension roller 163 with respect to the swing center O. Further, a window W is formed on the frame 105 on the movement locus of the mark X of the lever 162 that swings about the swing center O.

As described above, in the tension applying mechanism 161 having the tension adjusting means, the fixing position of the tray motor 124 is moved, and the distance between the rotation shaft 121 of the transmission pulley 123 and the drive shaft 125 of the tray motor 124 is adjusted, thereby the motor belt 127. When the tension is adjusted, the lever 162 of the tension applying mechanism 161 swings about the swing center O. Then, in a state where the mark X of the lever 162 is disposed in the window portion W, the screw 174 for fixing the tray motor 124 is tightened.
In this way, the deflection angle Θ of the motor belt 127 can be kept in a substantially constant state, whereby the influence of the deflection angle Θ of the motor belt 127 on the tension can be extremely reduced.

As described above, according to the belt drive mechanism that is the transport mechanism and the publisher that is the information processing apparatus according to the present embodiment, the distance between the rotation shaft 121 and the drive shaft 125 of the transmission pulley 123 and the rotation pulley 126 is displaced. Thus, by adjusting the deflection angle Θ of the motor belt 127 by the tension roller 163 to make it substantially constant, the influence of the deflection angle Θ of the motor belt 127 on the tension can be extremely reduced.
Specifically, by displacing the distance between the rotation shaft 121 and the drive shaft 125 of the transmission pulley 123 and the rotation pulley 126 and adjusting the swing position of the lever 162 so that the mark X is disposed on the window portion W. The deflection angle Θ of the motor belt 127 can be easily adjusted to be substantially constant, and the influence of the deflection angle Θ of the motor belt 127 on the tension can be reduced.

That is, it is possible to perform highly accurate servo control of the tray motor 124 with a simple structure, and it is possible to increase the conveyance accuracy of the medium M on the media tray 51 and to realize a highly accurate printing process for the medium M. be able to.
The means for indicating the swing position of the lever 162 of the tension applying mechanism 161 may not be based on the window portion W and the mark X. For example, a scale indicating the position of the lever 162 may be formed on the frame 105. Also good.

It is an external appearance perspective view of a publisher (media processing apparatus). It is a perspective view of the front side of the state which removed the case of the publisher. It is a perspective view of the back side of the state which removed the case of the publisher. It is a perspective view of the recording device part installed in the publisher. It is a schematic plan view of a belt drive mechanism. It is a schematic side view of a belt drive mechanism. It is a schematic side view of the principal part of a belt drive mechanism.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Publisher (information processing apparatus), 51 ... Media tray (moving body), 61 ... Inkjet head (processing part), 100 ... Belt drive mechanism (conveyance mechanism), 121 ... Rotating shaft, 123 ... Transmission pulley (driven pulley) 124 ... Tray motor (drive source), 125 ... drive shaft (rotary shaft), 126 ... rotary pulley (drive pulley), 127 ... motor belt (belt), 161 ... tension applying mechanism, 162 ... lever (tension applying member) 163, tension roller (tension applying member), 164, biasing member, M, medium, X, mark, Θ, deflection angle.

Claims (5)

A transport mechanism in which a belt is wound around a driving pulley that is rotated by a driving source and a driven pulley that is rotatably supported, and the moving body is moved by traveling of the belt by the rotation of the driving pulley;
A tension applying mechanism for applying tension to the belt by urging a tension applying member supported movably with respect to the belt by an urging member;
A conveyance mechanism characterized in that a deflection angle of the belt by the tension applying member can be adjusted by displacing a distance between rotation axes of the driving pulley and the driven pulley.   The transport mechanism according to claim 1, wherein the tension applying mechanism has a mark indicating a position of the tension roller at which a bending angle of the belt becomes a predetermined angle.   The transport mechanism according to claim 1 or 2, wherein the tension applying member supports a tension roller that contacts an outer peripheral surface of the belt between the driving pulley and the driven pulley.   The transport mechanism according to claim 3, wherein the tension roller is supported by a swingable lever, and the mark indicates a swing position of the lever at which a bending angle of the belt becomes a predetermined angle. . An information processing apparatus comprising: a media tray that moves while holding media; and a processing unit that performs information processing on media on the media tray,
An information processing apparatus, wherein the media tray is moved as the movable body by the transport mechanism according to claim 1.

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