JP2020001877A - Processing device, skew correcting device, and recording device - Google Patents

Abstract

To provide a processing device, a skew correcting device, and a recording device capable of forming a deflection space whose volume change is reduced in response to the rigidity of a medium, thereby securing an appropriate volume of the deflection space for correcting a skew.SOLUTION: A processing device 100 is formed on an upstream side of a pair of skew correction rollers (a pair of conveyance rollers 16). The processing device comprises: a deflection space forming part 50 for allowing deflection of a medium (sheet P) when correcting skew; a conveyance path 40 having a course changing part 60 for changing a course of the sheet P on an upstream side of the deflection space forming part 50; a member for displacing the deflection space (deflection displacing member 55) which can be displaced between a position approaching the conveyance path 40 and a position separating from the conveyance path 40 in the deflection space forming part 50; and a member for displacing the course changing part (a first course changing member 61 and a second course changing member 64) which can be displaced in response to the rigidity of the sheet P. The deflection displacing member 55 is displaced in response to the displacement of the first course changing member 61 and the second course changing member 64.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a processing device that performs skew removal when transporting a medium, a skew correction device including the processing device, and a recording device.

  2. Description of the Related Art Conventionally, an ink jet printer (hereinafter, referred to as a printer) is known as an example of a recording apparatus. The printer usually takes out the top sheet from a plurality of media (for example, printing paper, hereinafter referred to as paper) stacked on a paper feed tray, and takes a recording unit (printing unit) along a feeding path (conveying path). ), Printing is performed by feeding paper one sheet at a time.

  In such a printer, when the sheet is sent to the recording unit, a so-called skew may occur in which the sheet is sent obliquely with respect to the transport path. If the sheet is conveyed in a state where the skew has occurred, problems such as occurrence of a paper jam and printing not being performed at a predetermined position occur.

  Therefore, skew is removed (skew correction) before the sheet is conveyed to the recording unit. The paper aligning device disclosed in Patent Document 1 discloses a configuration in which a bending space is changed in accordance with the rigidity of a sheet in a region where a bending space for skew correction is formed.

JP-A-7-267427

  In the configuration of the sheet aligning device of Patent Literature 1, the volume of the formed bending space changes depending on how the sheet hits the guide surface (position and angle), and the appropriate bending space for performing skew correction is changed. There was a problem that it was difficult to secure the volume.

  The processing apparatus according to the present application includes a processing unit that performs a predetermined process on a conveyed medium, a skew correction roller pair that corrects skew of the medium at a nip position, and a skew correction roller pair on the upstream side of the processing unit. A flexure space forming portion formed on the upstream side and allowing flexure of the medium when correcting skew, and a route changing portion for changing the route of the medium upstream of the flexure space forming portion in the transport direction, A transport path for transporting the medium to the opposite side of the skew correction roller, a flexure space displacement member capable of being displaced to a position approaching to and away from the transport path in the flexure space forming section, and a transport path for the course changing section And a path changing member that can be displaced in accordance with the rigidity of the medium. The flexible space displacement member is displaced in accordance with the displacement of the path changing member.

  In the above-described processing apparatus, the course changing unit displacement member forms the bending space by displacing the bending space changing member in a direction away from the conveyance path in accordance with the amount of displacement of the course changing unit by the medium to the outside of the conveyance path. Preferably, the volume of the part is expanded.

  In the above-described processing apparatus, it is preferable that a pressing member that presses the path changing unit displacement member toward the inside of the transport path is disposed in the path changing unit.

  In the above-described processing apparatus, it is preferable that the course changing portion displacement member be displaced against the pressing force of the pressing member due to the rigidity of the medium.

  In the above-described processing apparatus, the course changing unit displacement member is rotatable about a fulcrum at one end in the conveyance direction, and the bending space displacement member is rotatable about a fulcrum at one end in the conveyance direction. It is preferable that the rotation of the course changing portion displacement member is transmitted to the bending space displacement member to rotate.

  In the above-described processing apparatus, it is preferable that the course changing portion displacement member is divided into two parts, an upstream side and a downstream side in the transport direction, and each of the members rotates about an upstream fulcrum and a downstream fulcrum.

  In the above-described processing apparatus, the course changing unit displacement member can be displaced to the outside of the conveyance path, the bending space displacement member can rotate about a fulcrum on one end side in the conveyance direction, and the bending space displacement member It is preferable that the displacement of the partial displacement member bend and be transmitted to the space displacement member to rotate.

  In the above processing device, it is preferable that the course changing section has a curved shape, and the course changing section displacement member is arranged outside the curved shape.

  In the above-described processing apparatus, it is preferable that the path changing unit displacement member or the bending space displacement member is maintained at a position displaced by the lock mechanism according to the rigidity of the medium.

  A skew feeding correction device according to the present application includes any one of the processing devices described above.

  A recording apparatus according to the present application includes any one of the processing apparatuses described above.

FIG. 2 is a perspective view illustrating an appearance of the printer according to the embodiment. FIG. 2 is a side sectional view of the printer according to the embodiment. FIG. 2 is a diagram illustrating a paper transport route in the printer according to the embodiment. FIG. 2 is a side sectional view showing the processing apparatus according to the first embodiment. FIG. 2 is a side sectional view showing the processing apparatus according to the first embodiment. FIG. 4 is a side sectional view showing a processing apparatus according to a second embodiment. FIG. 4 is a side sectional view showing a processing apparatus according to a second embodiment. FIG. 9 is a schematic cross-sectional view illustrating a lock mechanism included in a processing apparatus according to a second embodiment. FIG. 9 is a schematic cross-sectional view illustrating a lock mechanism included in a processing apparatus according to a second embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following drawings, the scale of each member is different from the actual scale for convenience of describing the operation and action of each member.

An outline of a recording apparatus according to an embodiment of the present invention will be described. As an example of the recording device, an ink jet printer 1 (hereinafter, referred to as a printer 1) will be described as an example.
FIG. 1 is a perspective view illustrating an appearance of a printer 1 according to the present embodiment. FIG. 2 is a side sectional view of the printer 1 according to the present embodiment. FIG. 3 is a diagram illustrating transport routes R1 and R2 of the paper P in the printer 1 according to the present embodiment. The printer 1 as a recording device shown in FIGS. 1, 2, and 3 has a first configuration described below except for a configuration of a transport path between the intermediate roller 13 (the driven roller 14a) and the transport roller pair 16. This shows a configuration common to the embodiment and the second embodiment.

  In each of the drawings, an XYZ coordinate system is used. The X direction is the scanning direction of the recording head 10 and is the width direction of the medium on which recording is performed. The Y direction is the depth direction of the printer 1 and the length direction of the medium. The Z direction is the direction of gravity and the height direction of the printer 1.

  Further, the front side of the apparatus is defined as a + Y direction, and the rear side of the apparatus is defined as a -Y direction. When the printer 1 is viewed from the front side, the left side of the apparatus is defined as a + X direction, and the right side of the apparatus is defined as a -X direction. The upper side of the apparatus (including the upper, upper, and upper surfaces) is defined as the + Z direction, and the lower side of the apparatus (including the lower, lower, and lower surfaces) is defined as the -Z direction.

  In the following description, the direction in which the paper P is transported inside the printer 1 is referred to as “downstream side”. The direction in which the sheet P is conveyed in the direction opposite to the downstream side is referred to as “upstream side”.

[Overview of Printer]
As shown in FIG. 1, a printer 1 according to the present embodiment is configured as a multifunction peripheral including a printer unit 2 that records on paper P as a medium and a scanner unit 3 that reads an image of a document. The scanner unit 3 is provided above the printer unit 2. Examples of the type of paper P on which recording is performed by the printer unit 2 include plain paper, thick paper, and photo paper.

  As shown in FIG. 2, the paper P after recording by the recording head 10 provided in the printer unit 2 is discharged from a discharge port 4 provided on the front surface of the apparatus in FIG. On the front surface of the apparatus, an operation panel 6 including a power button, operation buttons for performing various print settings and recording execution, and a display unit for performing preview display of print setting contents and print images and the like is installed. .

[Paper transport route in printer]
The transport route R1 of the paper P in the printer unit 2 will be described with reference to FIGS. In FIGS. 2 and 3, an alternate long and short dash line indicates the transport route R1 of the sheet P. Although the details will be described later, the transport route R1 from the intermediate roller 13 to the transport roller pair 16 shown in FIGS. 2 and 3 is a transport route R1 for a sheet P having low rigidity (for example, plain paper).

  The printer unit 2 includes two-stage paper trays 7 and 8 that store a plurality of papers P at the bottom, and the papers P are fed one by one from one of the paper trays 7 and 8. The sheet P is sent from the sheet tray 7 to the apparatus rear side (−Y direction) by a first feeding roller 11 (also referred to as a pickup roller), and is curved by an intermediate roller 13 driven by a first driving source (not shown). Then, it is sent to the front side of the apparatus (+ Y direction). Similarly, the paper is fed from the paper tray 8 to the rear side of the apparatus by the second feeding roller 12, is curved by the intermediate roller 13, and is sent to the front side of the apparatus.

  Here, with respect to the driven roller that rotates following the rotation of the intermediate roller 13, the upstream driven roller is referred to as a driven roller 14a, and the downstream driven roller is referred to as a driven roller 14b. The transport route R1 of the paper P fed from the paper tray 7 and the transport route R1 of the paper P fed from the paper tray 8 join at a position (upstream side) before the nip position between the intermediate roller 13 and the driven roller 14a. are doing.

  The first feed roller 11 and the second feed roller 12 are configured to be swingable about swing shafts 11 a and 12 a, respectively, and are provided at the top of a plurality of sheets P stored in the sheet trays 7 and 8. Is configured to come in contact with the sheet P. The first feeding roller 11 is configured to be driven by a first driving source common to the intermediate roller 13.

  The first drive source is a motor capable of normal rotation and reverse rotation. For example, when the first drive source is driven by normal rotation, both the first feeding roller 11 and the intermediate roller 13 move in the transport direction F. When the first drive source is driven in reverse rotation (see FIG. 3), only the intermediate roller 13 rotates in the direction of transport in the transport direction F, and the first feed roller 11 stops. I do. The second feed roller 12 is driven by a drive source (not shown) different from the first drive source.

  When the paper P is fed from the paper tray 7, the first drive source is driven in the forward direction to rotate both the first feed roller 11 and the intermediate roller 13 in the direction of transport in the transport direction F, and The driving source for the second feeding roller 12 is stopped. On the other hand, when the paper P is fed from the paper tray 8, the first drive source is driven in the reverse direction to rotate only the intermediate roller 13 in the direction of transport in the transport direction F, and the second feed roller 12 Are driven. The drive of the first drive source and the drive source for the second feed roller 12 is controlled by a control unit (not shown).

  As shown in FIG. 3, a bending displacement member 55 and an upper conveyance guide member 53 according to the first embodiment are installed at a position on the downstream side immediately from the nip position between the intermediate roller 13 and the driven roller 14 b. . The paper P sent out from the intermediate roller 13 and the driven roller 14b is, for example, bent in a bending space forming section 50 (a first transport path in FIG. 3) surrounded by a bending displacement member 55 and an upper transport guide member 53. 51), and is conveyed toward the conveying roller pair 16 installed downstream of the intermediate roller 13.

  The flexure space forming section 50 (the first transport path 51 and the second transport path 52 (see FIG. 5)) formed by the upper transport guide member 53 and the flexure displacement member 55 is for performing skew removal (skew correction). The processing apparatus 100 (see FIGS. 4 and 5) is configured, and its configuration and operation will be described in a first embodiment below.

  A transport roller pair 16 that transports the paper P is provided downstream of the intermediate roller 13. The transport roller pair 16 includes a transport drive roller 16a that is rotationally driven by a second drive source (not shown), and a transport driven roller 16b that rotates in contact with the transport drive roller 16a.

  In the transport route R1 of the paper P, between the intermediate roller 13 and the transport roller pair 16, a first sensor 21 that detects an end position of the paper P transported on the upstream side of the transport roller pair 16 (see FIG. 3) ), And a second sensor 22 (see FIG. 3) for detecting an end position of the sheet P conveyed on the upstream side of the first sensor 21. In the present embodiment, a lever-type sensor is used as the first sensor 21 and the second sensor 22, but, for example, an optical sensor may be used.

  On the downstream side of the transport roller pair 16 (the front side of the apparatus, in the + Y direction), a recording head 10 that prints on the transported paper P is provided as a processing unit that performs a predetermined process on the transported medium. . The sheet P is sent to the lower side of the recording head 10 (the upper surface of the platen 25) by the pair of conveying rollers 16.

  In the present embodiment, the recording unit 10 that prints on the conveyed paper P in the printer unit 2 is used as a processing unit that performs a predetermined process on the conveyed medium. However, as the processing unit, a reading unit that reads an image recorded on the conveyed paper P in the scanner unit 3 may correspond to the processing unit.

  The recording head 10 is held by a carriage 18 which is configured to be movable in a width direction (X direction) intersecting the transport direction F (+ Y direction) of the paper P. The recording head 10 is configured to perform recording on a sheet P sent to a print area (not shown) by discharging ink. An ink cartridge 19 for supplying ink to the recording head 10 is mounted on the carriage 18.

  A discharge roller pair 23 is provided downstream of the recording head 10 (front side of the apparatus, + Y direction). The discharge roller pair 23 includes a discharge drive roller 23a and a discharge driven roller 23b that rotates in contact with the discharge drive roller 23a. The paper P after recording is nipped by the discharge drive roller 23a and the discharge driven roller 23b, and discharged to the discharge tray 5 provided on the front side of the apparatus.

  The printer 1 of the present embodiment is configured to be capable of performing double-sided printing. As shown in FIG. 3, a transport route R2 for switching back indicated by a two-dot chain line is provided. The paper P on which the recording on the front surface has been completed is sent in the −Y direction, passes through the transport route R2, and is again driven by the intermediate roller 13 by rotating the transport roller pair 16 or the discharge roller pair 23 in the reverse direction. It is nipped by the roller 14a and inverted. Then, the sheet P nipped by the intermediate roller 13 and the driven roller 14a and turned over is conveyed to, for example, a first conveyance path 51 similar to that for recording on the front surface. The transport route R2 is a route that is transported on the upper surface of the transport guide 28 (see FIG. 4) and passes below the bending displacement member 55.

<First embodiment>
4 and 5 are side sectional views showing the processing apparatus 100 according to the first embodiment. More specifically, FIG. 4 is a side cross-sectional view illustrating a conveyance state of the sheet P having low rigidity in the processing apparatus 100. FIG. 5 is a side cross-sectional view illustrating a state of conveyance of the paper P having high rigidity in the processing apparatus 100. 4 and 5, the conveyance route of the sheet P is indicated by a dashed line.
The processing apparatus 100 according to the present embodiment will be described with reference to FIGS.

  As shown in FIGS. 4 and 5, the processing apparatus 100 according to the present embodiment includes a recording head 10 as a processing unit that performs recording (printing) as a predetermined process on a sheet P to be transported, On the upstream side, a transport roller pair 16 that transports the paper P is provided. The transport roller pair 16 functions as a skew feed correction roller pair for correcting skew feed of the paper P, as described later.

  The processing device 100 is formed on the upstream side of the transport roller pair 16 and allows the paper P to bend when correcting skew, and on the upstream side of the flexible space forming unit 50 in the transport direction F. It has a course changing unit 60 that changes the course of the paper P, and includes a transport path 40 that transports the paper P to the transport roller pair 16 side.

  The processing apparatus 100 further includes, in the bending space forming section 50, a bending displacement member 55 as a bending space displacement member capable of being displaced between a position approaching and separating from the transport path 40, and a transport path of the course changing section 60. 40, a path changing member (first path changing member 61, second path changing member 64) as a path changing section displacing member that can be displaced in accordance with the rigidity of the sheet P.

  Note that the bending displacement member 55 is rotatable about a fulcrum on one end side in the transport direction F. Specifically, the bending displacement member 55 includes a rotation shaft 56 at an end on the downstream side. The bending displacement member 55 changes the volume of the bending space forming section 50 by displacing the rotation shaft 56 as a center between a position approaching the conveyance path 40 and a position separating from the conveyance path 40.

  Although the details will be described later, when the bending displacement member 55 is displaced to a position approaching the conveyance path 40 about the rotation shaft 56, the first conveyance path 51 constituting the bending space forming section 50 (FIG. 4). Ref) is formed. Further, the second displacement path 52 (see FIG. 5) forming the flexure space forming section 50 is formed by displacing the bending displacement member 55 to a position away from the conveyance path 40 about the rotation axis 56. Is done.

  When the bending displacement member 55 is displaced to a position approaching the conveyance path 40 about the rotation shaft 56, when the bending displacement member 55 rotates about the rotation shaft 56, The leading end in the opposite direction approaches the transport path 40 (in this case, the third transport path 41 on the second rotation shaft 65 side of the second path changing member 64 constituting the third transport path 41 described later). Means that. Further, the displacement of the bending displacement member 55 to a position separated from the transport path 40 about the rotation shaft 56 means that when the bending displacement member 55 rotates around the rotation shaft 56, The leading end in the opposite direction to the transport path 40 (in this case, the fourth transport path 42 on the second rotation shaft 65 side of the second path changing member 64 constituting the fourth transport path 42 described later). It means that they are separated from each other.

  Immediately upstream of the transport drive roller 16a of the transport roller pair 16, a transport guide 28 extending from below the downstream end of the bending displacement member 55 is provided, and guides the sheet P to the transport roller pair 16. At the time of duplex printing, the sheet P is guided to the transport route R2.

  The course changing members (the first course changing member 61 and the second course changing member 64) are curved between the driven roller 14a and the driven roller 14b while maintaining a predetermined separation distance from the outer peripheral surface of the intermediate roller 13. It is configured. Specifically, the course changing member is divided into two parts, an upstream side and a downstream side in the transport direction F, and each is configured to be rotatable about an upstream fulcrum and a downstream fulcrum. Here, the upstream path change member divided into two is referred to as a first path change member 61, and the downstream path change member is referred to as a second path change member 64.

  The course changing portion displacement members (the first course changing member 61 and the second course changing member 64) are rotatable about a fulcrum on one end side in the transport direction F. Specifically, the first course changing member 61 includes a first rotation shaft 62 as an upstream fulcrum, and the second course changing member 64 includes a second rotation shaft 65 as a downstream fulcrum.

  The downstream end of the first course changing member 61 and the upstream end of the second course changing member 64 are arranged in a comb shape so as not to overlap in plan. At the downstream end of the first path changing member 61, a first pressing member 63 as a pressing member for pressing the first path changing member 61 toward the inside of the transport path 40 (toward the intermediate roller 13) is arranged. I have. Similarly, a second pressing member 66 as a pressing member that presses the second path changing member 64 toward the inside of the transport path 40 (toward the intermediate roller 13) is provided at the upstream end of the second path changing member 64. Are located.

  The first course changing member 61, the first rotating shaft 62, and the first pressing member 63, and the second course changing member 64, the second rotating shaft 65, and the second pressing member 66 have the same shape and the same shape, respectively. It is configured to be approximately plane-symmetric in terms of force.

  Although details will be described later, FIG. 4 illustrates a case where the rigidity of the paper P to be conveyed is low, and includes a region surrounded by the intermediate roller 13 and the first path changing member 61, and an area surrounded by the intermediate roller 13 and the second path changing member. The third transfer path 41 that forms the transfer path 40 is formed by the area surrounded by the member 64. Similarly, FIG. 5 shows a case where the rigidity of the sheet P to be conveyed is high, and includes a region surrounded by the intermediate roller 13 and the first path changing member 61, and a region surrounded by the intermediate roller 13 and the second path changing member 64. A fourth transport path 42 configuring the transport path 40 is formed by the area surrounded by. The first path changing member 61 and the second path changing member 64 form a part of the third transport path 41 and the fourth transport path 42.

  In the processing apparatus 100 of the present embodiment, the first path changing member 61 and the second path changing member 64 are displaced according to the rigidity (height) of the sheet P, and the bending displacement member 55 is moved in accordance with the displacement. It is a configuration that displaces. A link mechanism 80 is provided as a configuration for realizing this operation. By the link mechanism 80, the first path changing member 61, the second path changing member 64, and the bending displacement member 55 are connected and operate.

  The link mechanism 80 includes a first arm 81, a second arm 82, a first joint 83, a second joint 84, a rotating shaft 85, and the like. The link mechanism 80 is similarly configured with the first course changing member 61 and the second course changing member 64.

  Specifically, as shown in FIG. 4, the link mechanism 80 has one end of the first arm 81 and the downstream end of the first course changing member 61 connected by a first joint 83. Similarly, one end of the first arm 81 and the upstream end of the second course changing member 64 are connected by the first joint 83. The other end of the first arm 81 and one end of the second arm 82 are connected by a second joint 84, respectively.

  The second arm 82 is fixed with a rotation shaft 85 in the middle of the arm. Note that the rotation shaft 85 has an axis center in the X direction. A sliding portion 82 a is formed at the other end of the second arm 82, and slides (oscillates) on the lower surface of the bending displacement member 55 when the link mechanism 80 operates. Note that such a link mechanism 80 is configured as both the first course changing member 61 and the second course changing member 64.

  The bending displacement member 55 has an urging force for urging the sliding portion 82a side by an urging member (not shown). The link mechanism 80 operates in conjunction with the displacement of the first path changing member 61 and the second path changing member 64 according to the rigidity of the sheet P, and the sliding portion 82a slides. , The rotation about the rotation shaft 56 as the rotation center.

  By the link mechanism 80, the rotation of the first path changing member 61 and the rotation of the second path changing member 64 are transmitted to the bending displacement member 55 to rotate the bending displacement member 55. In other words, the bending displacement member 55 is displaced in accordance with the displacement of the first course changing member 61 and the second course changing member 64. Then, the bending displacement member 55 is displaced between a position approaching the transport path 40 and a position separating therefrom. When the bending displacement member 55 is displaced, the bending space forming portion 50 is constituted by being surrounded by the bending displacement member 55 and the upper conveyance guide member 53 fixed above the bending displacement member 55. Note that a first transport path 51 and a second transport path 52 are specifically formed as the bending space forming section 50.

  The link mechanism 80 is formed outside the both ends in the X direction (width direction) of the sheet P, and when the members constituting the link mechanism 80 operate, the link mechanism 80 comes into contact with the sheet P or the intermediate roller 13. It does not affect the operation of the driven roller 14b.

  With reference to FIG. 4, the operation of the processing device 100 when the paper P having low rigidity is conveyed will be described. For example, a case will be described in which a sheet R having low rigidity such as plain paper is conveyed from the sheet tray 7 and sent out from the nip position between the intermediate roller 13 and the driven roller 14a.

  The sheet P sent from the nip position between the intermediate roller 13 and the driven roller 14 a is first conveyed along the outer peripheral surface of the intermediate roller 13 in a region surrounded by the first path change member 61 and the intermediate roller 13. . Since the paper P has low rigidity, even if the sheet P comes into contact with the inner surface of the first path changing member 61 and presses the inner surface, the first path changing member 61 resists the pressing force of the first pressing member 63. It cannot be turned (displaced) about the first turning shaft 62. Therefore, the paper P is transported along the third transport path 41 surrounded by the intermediate roller 13 and the first path changing member 61 installed at a position separated from the outer peripheral surface of the intermediate roller 13 by a predetermined distance. .

  Further, even when the sheet P is continuously conveyed and conveyed into an area surrounded by the second path changing member 64 and the intermediate roller 13 configured similarly to the first path changing member 61, Since the rigidity is low and the second course changing member 64 cannot be displaced, the intermediate course 13 and the second course changing member 64 installed at a position separated from the outer peripheral surface of the intermediate roller 13 by a predetermined distance are provided. Are transported along the third transport path 41 surrounded by.

  Due to the operation of the link mechanism 80 in this state, the bending displacement member 55 moves the upper conveyance guide at a position approaching the conveyance path 40 (the third conveyance path 41) in the bending space forming section 50 as shown in FIG. It has been displaced to a position substantially parallel to the member 53. In this state, the first transport path 51 is formed by being surrounded by the upper transport guide member 53 and the bending displacement member 55.

  The first transport path 51 is configured to be inclined obliquely downward from the vicinity of the nip position between the intermediate roller 13 and the driven roller 14b toward the transport roller pair 16. In the present embodiment, the first transport path 51 is a path for transporting a sheet P having low rigidity, such as plain paper, toward the transport roller pair 16. The first transport path 51 uniformly reduces the vertical distance (the distance between the upper transport guide member 53 and the bending displacement member 55) so that the soft paper P does not buckle and lose the transport force. The configuration is such that a space that allows a minimum required deflection when correcting the skew of the sheet P is ensured.

  The sheet P conveyed in the third conveyance path 41 is sent from the nip position between the intermediate roller 13 and the driven roller 14b, and then conveyed into the first conveyance path 51 as shown in FIG. The sheet P conveyed in the first conveyance path 51 is conveyed while bending without buckling due to an appropriate gap between the upper conveyance guide member 53 and the bending displacement member 55, and hits the nip position of the conveyance roller pair 16. . At this time, the transport roller pair 16 has stopped driving.

  In this state, so-called skew in which the sheet P is sent obliquely to the first transport path 51 may occur. Therefore, in the present embodiment, as the skew feeding correcting operation, the intermediate roller 13 continues to be driven for a predetermined period. Since the downstream end of the sheet P is stopped at the nip position of the pair of conveying rollers 16, the intermediate roller 13 is further driven, so that the extra sheet P is sent into the first conveying path 51. . As a result, the sheet P keeps pushing the leading end from the upstream side to the downstream side, and is further bent in the Z direction orthogonal to the transport direction F.

  However, in the present embodiment, the volume of the first transport path 51 is set so as to allow deflection of the extra paper P that has been sent out. By performing such an operation, the leading ends of the sheets P can be aligned, and skew can be eliminated (skew correction).

  After the skew correction, the conveyance roller pair 16 (conveyance drive roller 16a) starts driving in the conveyance direction F, so that the skew-corrected sheet P is sandwiched between the conveyance roller pair 16 and conveyed. The subsequent operations including the recording by the recording head 10 can be properly performed.

  With reference to FIG. 5, the operation of the processing device 100 when the highly rigid paper P is conveyed will be described. For example, a case where a highly rigid sheet P such as thick paper or photographic paper is conveyed from the sheet tray 7 and sent out from the nip position between the intermediate roller 13 and the driven roller 14a will be described.

  The sheet P sent from the nip position between the intermediate roller 13 and the driven roller 14 a is first conveyed along the outer peripheral surface of the intermediate roller 13 in a region surrounded by the first path change member 61 and the intermediate roller 13. . Since the sheet P has high rigidity, when the sheet P slides while pressing against the inner surface of the first path changing member 61 while pressing on the inner surface, the inner surface of the first path changing member 61 of the sheet P is pressed. The force rotates (displaces) the first course changing member 61 clockwise about the first rotation shaft 62 against the pressing force of the first pressing member 63.

  More specifically, the first course changing member 61 is displaced outside the transport path 40 (third transport path 41) of the course changing section 60 by the paper P having high rigidity. Therefore, a new fourth transport path 42 is formed, which is surrounded by the intermediate roller 13 and the first path changing member 61 rotated by the sheet P.

  Further, the sheet P, which has been displaced by contacting the first path changing member 61, is conveyed along the fourth conveying path 42, and the second path changing member 64 and the intermediate roller 13, which are arranged in a comb-like shape. Is also transported in the area surrounded by. The sheet P slides while abutting against the inner surface of the second course changing member 64 and pressing the inner surface. The force of pressing the inner surface of the second path changing member 64 of the paper P is generated by moving the second path changing member 64 counterclockwise around the second rotation shaft 65 against the pressing force of the second pressing member 66. Is rotated (displaced).

  More specifically, the second route changing member 64 is displaced outside the transport path 40 (the third transport path 41) of the route changing unit 60 by the paper P having high rigidity. Therefore, a new fourth transport path 42 is formed which is surrounded by the intermediate roller 13 and the second path changing member 64 rotated by the sheet P.

With this operation, the link mechanism 80 operates.
In the link mechanism 80, the first arm 81 connected to the first joint 83 moves substantially in the −Y direction when the first path changing member 61 is displaced outside the third transport path 41. As the first arm 81 moves, the second arm 82 connected to the second joint 84 rotates counterclockwise about the rotation shaft 85. The sliding portion 82 a formed at the other end of the second arm 82 rotates counterclockwise about the rotation shaft 85.

  The rotation of the sliding portion 82a in the counterclockwise direction causes the abutting bending displacement member 55 to rotate clockwise about the rotation shaft 56. Accordingly, the bending displacement member 55 is displaced in the bending space forming section 50 to a position separated from the transport path 40 (the fourth transport path 42). As a result, a second transport path 52 is newly formed as shown in FIG. 5 by being surrounded by the upper transport guide member 53 and the bending displacement member 55.

  In other words, the first path changing member 61 and the second path changing member 64 are bent and displaced in accordance with the displacement amount of the sheet P to the outside of the transfer path 40 (third transfer path 41) of the path change section 60. By displacing 55 in a direction away from the transport path 40 (third transport path 41), the capacity of the bending space forming section 50 is expanded. Thus, in the bending space forming section 50, the volume of the bending space forming section 50 is expanded more than the volume of the first conveying path 51 by forming the second transport path 52.

  In the present embodiment, the second transport path 52 is a path for transporting highly rigid paper P, such as thick paper or photographic paper, toward the transport roller pair 16. The second transport path 52 is configured by providing a sufficiently large space in the vertical direction between the upper transport guide member 53 and the bending displacement member 55. Thus, when the skew of the sheet P to be conveyed is corrected, a larger deflection than in the first conveyance path 51 can be allowed.

  The sheet P conveyed in the fourth conveyance path 42 is sent out from the nip position between the intermediate roller 13 and the driven roller 14b, and then conveyed in the second conveyance path 52. Then, the sheet P conveyed in the second conveyance path 52 is conveyed while flexing without buckling due to the volume expanded compared with the first conveyance path 51, and hits the nip position of the conveyance roller pair 16. At this time, the transport roller pair 16 has stopped driving.

  In this state, a so-called skew in which the sheet P is sent obliquely to the second transport path 52 may occur. Therefore, in the present embodiment, as the skew feeding correcting operation, the intermediate roller 13 continues to be driven for a predetermined period. Since the downstream end portion of the paper P is stopped at the nip position of the transport roller pair 16, the intermediate roller 13 is further driven to send extra paper P into the second transport path 52. . As a result, the sheet P keeps pushing the leading end from the upstream side to the downstream side, and is further bent in the Z direction orthogonal to the transport direction F.

  However, in the present embodiment, the volume of the second transport path 52 is set so as to allow deflection of the sheet P that has been sent out extra. By performing such an operation, the leading ends of the sheets P can be aligned, and skew can be eliminated (skew correction).

  After the skew correction, the transport roller pair 16 (the transport drive roller 16a) starts driving in the transport direction F, so that the skew-corrected sheet P is sandwiched by the transport roller pair 16 and transported. The subsequent operations including the recording by the recording head 10 can be properly performed.

  Here, when the paper P having high rigidity changes to the paper P having low rigidity, the first pressing member 63 and the second pressing member 66 press the first pressing member 63 and the second pressing member 66 to change the first and second pressing members. Is pressed toward the inside of the fourth transport path 42 to return to the state of the third transport path 41 in which the sheet P having low rigidity is transported. With this operation, the link mechanism 80 operates.

  In the link mechanism 80, the first path changing member 61 and the second path changing member 64 are displaced inside the fourth transport path 42, so that the first arm 81 connected to the first joint 83 moves in the substantially + Y direction. I do. As the first arm 81 moves, the second arm 82 connected to the second joint 84 rotates clockwise about the rotation shaft 85. The sliding portion 82 a formed at the other end of the second arm 82 rotates clockwise about the rotation shaft 85.

  The rotation of the sliding portion 82a in the clockwise direction causes the contacting bending displacement member 55 to rotate in the counterclockwise direction about the rotation shaft 56. As a result, the bending displacement member 55 is displaced to a position in the bending space forming section 50 closer to the transport path 40 (the third transport path 41), and the first transport path 51 is formed.

  As described above, according to the processing apparatus 100 according to the present embodiment, the following effects can be obtained.

  The processing apparatus 100 according to the present embodiment includes the transport roller pair 16, the bending space forming unit 50 (the first transport path 51, the second transport path 52), the transport path 40 (the third transport path 41, the fourth transport path 42), A bending displacement member 55, a first course changing member 61, and a second course changing member 64 are provided. Then, the transport roller pair 16 corrects the skew of the sheet P at the nip position. The bending space forming section 50 (the first transport path 51 and the second transport path 52) is formed on the upstream side of the transport roller pair 16, and allows the paper P to bend when correcting skew. The transport path 40 (the third transport path 41 and the fourth transport path 42) has a path changing unit 60 that changes the path of the sheet P on the upstream side of the bending space forming unit 50 in the transport direction F. It is transported to the transport roller pair 16 side. The bending displacement member 55 is displaced in the bending space forming section 50 between a position approaching and away from the transport path 40 (the third transport path 41 and the fourth transport path 42). The first path change member 61 and the second path change member 64 form a part of the third transfer path 41 and the fourth transfer path 42 of the transfer path 40 and are displaced according to the rigidity of the sheet P. Then, the bending displacement member 55 is displaced in accordance with the displacement of the first path change member 61 and the second path change member 64, thereby forming the first transport path 51 and the second transport path 52.

With this configuration, the processing apparatus 100 according to the present embodiment includes the transport path 40 (the third transport path 41 and the fourth transport path 42) having the course changing unit 60 on the upstream side of the bending space forming unit 50. The course changing portion displacement members (the first course changing member 61 and the second course changing member 64) which constitute a part of the path 40 are displaced in accordance with the rigidity of the sheet P. Then, in response to the displacement of the course changing portion displacement member, the flexure space forming portion 50 (flexure displacement member 55) is displaced to a position approaching to and away from the transport path 40 by a flexure space displacement member (bending displacement member 55). A first transport path 51 and a second transport path 52) are formed.
Conventionally, in a region where a bending space for skew correction is formed, the bending space is changed in accordance with the rigidity of the paper P, and how the paper P hits a guide surface (corresponding to a course changing portion displacement member). (Position or angle) changes the volume of the formed bending space, and it is difficult to secure an appropriate volume of the bending space for skew correction.
However, the processing apparatus 100 of the present embodiment includes the transport path 40 (the third transport path 41 and the fourth transport path 42) on the upstream side of the bending space forming section 50 which is a region forming the bending space. The path changing members (the first path changing member 61 and the second path changing member 64) constituting the fork 40 are displaced according to the rigidity of the paper P, thereby changing the bending space for performing skew correction and changing the bending space. The configuration is such that a forming section 50 (first transport path 51, second transport path 52) is formed.
With this configuration, it is possible to form a flexible space in which a change in the volume of the flexible space is reduced in accordance with the rigidity of the sheet P. Therefore, it is possible to secure an appropriate volume of the bending space for performing the skew correction in accordance with the rigidity of the sheet P.

  According to the processing apparatus 100 of the present embodiment, the first path changing member 61 and the second path changing member 64 are the displacement amounts of the paper P to the outside of the transport path 40 (the third transport path 41) of the path changing section 60. Accordingly, the second transport path 52 that expands the volume of the first transport path 51 is formed by displacing the bending displacement member 55 in a direction away from the third transport path 41. Thus, for example, when the rigidity of the paper P is high, a new second transport path 52 that expands the volume of the first transport path 51 is formed. Thus, it is possible to prevent a paper jam or the like and perform appropriate skew correction.

  According to the processing apparatus 100 of the present embodiment, the course changing unit 60 presses the first course changing member 61 and the second course changing member 64 toward the inside of the third transport path 41 and the fourth transport path 42. The first pressing member 63 and the second pressing member 66 are arranged. With the first pressing member 63 and the second pressing member 66, the first course changing member 61 and the second course changing member 64 can be appropriately displaced according to the rigidity of the paper P.

  According to the processing apparatus 100 of the present embodiment, the first path changing member 61 and the second path changing member 64 are displaced by the rigidity of the sheet P against the pressing force of the first pressing member 63 and the second pressing member 66. I do. Thereby, the paper P can be appropriately transported to the second transport path 52 according to the rigidity of the paper P. Further, the pressing force of the first pressing member 63 and the second pressing member 66 can be appropriately set according to the rigidity of the paper P.

  According to the processing apparatus 100 of the present embodiment, the first course changing member 61 includes the first rotating shaft 62 as an upstream fulcrum, and the second course changing member 64 includes the second rotating shaft 62 as a downstream fulcrum. A shaft 65 is provided and each is rotatable. The bending displacement member 55 is provided with a rotation shaft 56 at the end on the downstream side and is rotatable. Then, the bending displacement member 55 is rotated by the rotation of the first course changing member 61 and the second course changing member 64 being transmitted. As described above, by using the rotating mechanism, the displacements of the first path changing member 61 and the second path changing member 64 are transmitted to the bending displacement member 55, and the first transport path 51 and the second transport path are transmitted. 52 can be easily realized. In addition, by using a rotating mechanism, an electrical configuration can be reduced and a processing device can be realized with a mechanical configuration.

  According to the processing apparatus 100 of the present embodiment, the course changing unit displacement member is divided into two parts (the first course changing member 61 and the second course changing member 64) on the upstream side and the downstream side in the transport direction F. Then, the first course changing member 61 rotates around the first rotating shaft 62 at the upstream fulcrum, and the second course changing member 64 rotates around the second rotating shaft 65 at the downstream fulcrum. In this way, the first path changing member 61 and the second path changing member 64 divided into two, the upstream fulcrum (first rotation shaft 62) and the downstream fulcrum (second rotation shaft 65) change the course. Since the section displacement member can be configured to be substantially symmetrical with respect to the plane, the course changing section displacement member can be uniformly displaced. Therefore, the path change portion displacement member can be made to have a more stable displacement as compared with a case where the path change portion displacement member is displaced only by the rotation shaft on one end side without being divided into two as one path change portion displacement member. With this configuration, the displacement of the bending displacement member 55 can be a stable displacement with reduced variation, and the first transport path 51 and the second transport path 52 according to the rigidity of the paper P can be formed. .

  In the first embodiment, the course changing section displacement member is composed of a first course changing member 61 and a second course changing member 64 that are divided into two. However, the course changing section displacement member may be configured to be rotatable about a fulcrum at one end without being divided, and the course changing section displacement member may be displaced, and the course changing section displacement member 55 may be displaced. Can be transmitted. In the case where the path changing member is not divided, the effect of reducing the variation in displacement of the bending displacement member 55 is inferior to that in the case where the path changing part is divided.

<Second embodiment>
6 and 7 are side sectional views showing a processing apparatus 100A according to the second embodiment. More specifically, FIG. 6 is a side cross-sectional view illustrating a transport state for a sheet P having low rigidity in the processing apparatus 100A. FIG. 7 is a side cross-sectional view illustrating a state of conveyance of the paper P having high rigidity in the processing apparatus 100A. 6 and 7, the conveyance route of the paper P is indicated by a chain line.

FIGS. 8 and 9 are schematic cross-sectional views illustrating a lock mechanism 70 provided in a processing apparatus 100A according to the second embodiment. Specifically, FIG. 8 is a schematic cross-sectional view showing a state where the lock mechanism 70 locks the course changing member 67. FIG. 9 is a schematic cross-sectional view showing a state where the lock mechanism 70 releases the lock of the course changing member 67. The lock mechanism 70 shown in FIGS. 8 and 9 is a lock mechanism 70 installed downstream of the course changing member 67. The lock mechanism 70 is similarly installed on the upstream side of the course changing member 67.
The processing apparatus 100A according to the present embodiment will be described with reference to FIGS. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and redundant description will be omitted.

  The processing apparatus 100A of the present embodiment is different from the processing apparatus 100 of the first embodiment in the configuration of the bending space forming section 50A and the course changing section 60A, and further includes a lock mechanism 70. Also, the link mechanism 80A is different. Other configurations are the same as in the first embodiment.

  As shown in FIG. 6, the processing apparatus 100 </ b> A according to the present embodiment includes a bending space forming unit 50 </ b> A formed upstream of the pair of conveying rollers 16 and configured to allow the sheet P to bend when correcting skew. A path changing section 60A that changes the path of the sheet P is provided upstream of the bending space forming section 50A in F, and a transport path 40A that transports the sheet P to the transport roller pair 16 is provided.

  The processing apparatus 100A according to the present embodiment includes a bending space forming unit 50A, a bending space changing member 55A serving as a bending space changing member capable of being displaced between a position approaching to and away from the transport path 40A, and a course changing unit 60A. And a path changing member 67 as a path changing section displacing member that forms a part of the transport path 40A and that can be displaced in accordance with the rigidity of the sheet P.

  The bending displacement member 55A is rotatable about a fulcrum on one end side in the transport direction F. Specifically, the bending displacement member 55A includes a rotation shaft 56A at an end on the upstream side. The bending displacement member 55A changes the volume of the bending space forming portion 50A by displacing the rotation shaft 56A as a center between a position approaching and separating from the transport path 40A.

  Although the details will be described later, the first displacement path 51A (see FIG. 6) that configures the flexure space forming section 50A by displacing the deflection displacement member 55A to a position approaching the transport path 40A about the rotation shaft 56A. Ref) is formed. Further, the second displacement path 52A (see FIG. 7) forming the flexure space forming section 50A is formed by displacing the bending displacement member 55A to a position separated from the conveyance path 40A about the rotation axis 56A. Is done.

  The displacement of the bending displacement member 55A to a position approaching the transport path 40A about the rotation shaft 56A means that when the bending displacement member 55A rotates about the rotation shaft 56A, the bending displacement member 55A is closer to the rotation shaft 56A. The leading end in the opposite direction approaches the transport path 40A (in this case, the third transport path 41A on the slide member 68 side downstream of the course changing member 67 constituting the third transport path 41A described later). Means. The displacement of the bending displacement member 55A to a position separated from the transport path 40A about the rotation shaft 56A means that when the bending displacement member 55A rotates about the rotation shaft 56A, the bending displacement member 55A is closer to the rotation shaft 56A. The tip in the opposite direction to the transport path 40A (in this case, the fourth transport path 42A on the slide member 68 side downstream of the course changing member 67 constituting the fourth transport path 42A described later). It means separating.

  A lower conveyance guide member 58 is provided below the downstream end of the bending displacement member 55A. In addition, a transport guide 28 extending from below the lower transport guide member 58 is provided immediately near the upstream side of the transport drive roller 16 a of the transport roller pair 16.

  The sheet P is conveyed on the upper surface side of the bending displacement member 55A, thereafter, is conveyed on the upper surface side of the lower conveyance guide member 58, and is finally guided to the conveyance roller pair 16 by the conveyance guide. At the time of double-sided printing, the paper P is guided to the transport route R2 by being transported upstream in a region sandwiched between the transport guide 28 and the lower transport guide member 58.

  The course changing section 60A has a curved shape between the driven roller 14a and the driven roller 14b while maintaining a predetermined separation distance from the outer peripheral surface of the intermediate roller 13, and the course changing member 67 has a curved shape. It is located outside. The course changing member 67 can be uniformly displaced outside the transport path 40A (third transport path 41A).

  A slide member 68 extending upstream is formed at the upstream end of the course changing member 67, and a similar slide member 68 extending downstream is formed at the downstream end.

  The processing apparatus 100A of the present embodiment has a configuration in which the course changing member 67 is displaced by the rigidity (height) of the sheet P, and the bending displacement member 55A is displaced in accordance with the displacement. A link mechanism 80A is provided as a configuration for realizing this operation. By the link mechanism 80A, the course changing member 67 and the bending displacement member 55A are connected and operated.

  The link mechanism 80A includes a first arm 81A, a second arm 82A, a first joint 83A, a second joint 84A, a rotating shaft 85A, and the like. As shown in FIG. 6, in the link mechanism 80A, as shown in FIG. 6, one end of the first arm 81A and a curved central portion of the course changing member 67 are connected by a first joint 83A. . The other end of the first arm 81A and one end of the second arm 82A are connected by a second joint 84A.

  The second arm 82A is fixed with a rotation shaft 85A in the middle of the arm. Note that the rotation shaft 85A has an axis center in the X direction. A sliding portion 82Aa is formed at the other end of the second arm 82A, and slides (oscillates) on the lower surface of the bending displacement member 55A when the link mechanism 80A operates.

  The bending displacement member 55A has a biasing force for biasing the sliding portion 82Aa side by a biasing member (not shown). The bending displacement member 55A is driven by the link mechanism 80A operating in response to the course changing member 67 being displaced in accordance with the rigidity of the sheet P, and the sliding portion 82Aa is slid. About the center of rotation.

  By the link mechanism 80A, the rotation of the course changing member 67 is transmitted to the bending displacement member 55A to rotate the bending displacement member 55A. In other words, the bending displacement member 55A is displaced in accordance with the displacement of the course changing member 67. Then, the bending displacement member 55A is displaced between a position approaching the transport path 40A and a position separating therefrom. When the bending displacement member 55A is displaced, the bending space forming portion 50A is constituted by being surrounded by the bending displacement member 55A and the upper conveyance guide member 53 fixed above the bending displacement member 55A. Note that, specifically, a first transport path 51A and a second transport path 52A are formed as the bending space forming section 50A.

  The link mechanism 80A is formed outside the both ends of the sheet P in the X direction (width direction), and when the members constituting the link mechanism 80A operate, the link mechanism 80A comes into contact with the sheet P or the intermediate roller 13 is moved. It does not affect the operation of the driven roller 14b.

  The processing apparatus 100A of the present embodiment has a configuration in which the course changing member 67 is displaced by the rigidity (height) of the sheet P, and the bending displacement member 55A is displaced in accordance with the displacement. Note that the processing apparatus 100A of the present embodiment includes a lock mechanism 70 for holding (maintaining) the displacement of the course changing member 67.

  The lock mechanism 70 is provided as a pair. More specifically, one lock mechanism 70 is provided at each of the upstream end and the downstream end of the course changing member 67. As shown in FIGS. 8 and 9, the lock mechanism 70 includes a lock member 71, a support member 72, a cam member 73, and a slide member 68 configured as a course changing member 67.

  The slide member 68 includes a support shaft 68a and a locking claw 68b. The support shaft 68a is formed to protrude from a middle side surface of the extending slide member 68. The locking claw 68b is formed at the tip of the extending slide member 68. The support shaft 72 a of the slide member 68 is inserted into the support bearing portion 72 to guide the slide of the slide member 68. Accordingly, when the course changing member 67 is displaced, the course changing member 67 slides along the bearing portions 72 at both the upstream end and the downstream end.

  The locking member 71 includes a base portion 71a and a locking receiving claw 71b. The lock receiving claw 71b is formed on the support bearing portion 72 side inside the base portion 71a. In this embodiment, the locking receiving pawl 71b is roughly shaped like a saw blade so as to engage with the locking pawl 68b of the slide member 68 along the sliding direction of the course changing member 67 (slide member 68). Is formed.

  When the course changing member 67 is displaced outward away from the outer peripheral surface of the intermediate roller 13 against the pressing force of the pressing member 69, the course changing member 67 slides outward along the support bearing portion 72 and the locking claw 68b is locked. It slides outward according to the amount of displacement while engaging with the receiving pawl 71b. The locking member 71 (locking receiving pawl 71b) is normally urged inward, and the locking pawl 68b slides against this urging force, thereby causing the currently engaged locking pawl 68b to engage. The operation of releasing the engagement with the receiving claw 71b and engaging with the next locking receiving claw 71b is repeated according to the displacement amount, and the course changing member 67 is locked at a position corresponding to the displacement amount. The locking member 71 is movable in a direction away from the locking claw 68b by the urging force of the locking claw 68b.

  The cam member 73 includes a rotating shaft 73a, a contact portion 73b, and the like. The rotation shaft 73a is formed eccentric. As shown in FIG. 9, when the cam member 73 rotates around the eccentric rotation shaft 73 a, the contact portion 73 b abuts on the unlocking portion (not shown) of the locking member 71, and the locking member 71 a is unlocked. The member 71 moves in a direction away from the locking claw 68b. By this operation, the lock is released by disengaging the locking pawl 68b and the locking receiving pawl 71b.

  When the lock is released, the course changing member 67 is moved by the pressing force of the pressing member 69 to a position set to be the separation distance forming the third transport path 41A (in this embodiment, the position of the support bearing section 72 is the highest). Slide to the bottom point). In this state, the cam member 73 rotates to separate the contact portion 73b from the unlocking portion. Thereby, the locking member 71 returns to the initial position by the urging force, and the locking claw 68b and the locking receiving claw 71b can be engaged by the displacement of the course changing member 67.

  With reference to FIG. 6, the operation of the processing device 100A when the paper P having low rigidity is conveyed will be described. For example, a case will be described in which a sheet R having low rigidity such as plain paper is conveyed from the sheet tray 7 and sent out from the nip position between the intermediate roller 13 and the driven roller 14a.

The sheet P sent from the nip position between the intermediate roller 13 and the driven roller 14 a is conveyed along the outer peripheral surface of the intermediate roller 13 in an area surrounded by the course changing member 67 and the intermediate roller 13. In addition, since the paper P has low rigidity, even if the paper P comes into contact with the inner surface of the path changing member 67 and presses the inner surface, the path changing member 67 is displaced outward (sliding) against the pressing force of the pressing member 69. I can't let that happen. Therefore, the sheet P is transported along the third transport path 41 </ b> A surrounded by the intermediate roller 13 and the course changing member 67 installed at a position separated by a predetermined distance from the outer peripheral surface of the intermediate roller 13.
The pressing member 69 is provided by pressing the course changing member 67 toward the inside of the transport path 40A (toward the intermediate roller 13).

  Due to the operation of the link mechanism 80A in this state, the bending displacement member 55A moves the upper conveyance guide at a position approaching the conveyance path 40A (third conveyance path 41A) in the bending space forming section 50A as shown in FIG. It has been displaced to a position substantially parallel to the member 53. In this state, the first transport path 51A is formed by being surrounded by the upper transport guide member 53 and the bending displacement member 55A.

  The sheet P conveyed in the third conveyance path 41A is sent out from the nip position between the intermediate roller 13 and the driven roller 14b, and then conveyed into the first conveyance path 51A as shown in FIG. The sheet P conveyed in the first conveyance path 51A is conveyed while bending without buckling due to an appropriate gap between the upper conveyance guide member 53 and the bending displacement member 55A, and hits the nip position of the conveyance roller pair 16. . At this time, the transport roller pair 16 has stopped driving.

  In this state, so-called skew in which the sheet P is sent obliquely to the first transport path 51A may occur. The operation of the skew correction is the same as that of the first embodiment, and the description is omitted. Note that the volume of the first transport path 51A is set so as to allow deflection of the paper P that is sent out extra. By performing such an operation, the leading ends of the sheets P can be aligned, and skew can be eliminated (skew correction). The operation of the sheet P after the skew correction is the same as in the first embodiment, and a description thereof will not be repeated.

  With reference to FIG. 7, an operation of the processing apparatus 100A when the highly rigid sheet P is conveyed will be described. For example, a case where a highly rigid sheet P such as thick paper is conveyed from the sheet tray 7 and sent out from a nip position between the intermediate roller 13 and the driven roller 14a will be described.

The sheet P sent from the nip position between the intermediate roller 13 and the driven roller 14 a is conveyed along the outer peripheral surface of the intermediate roller 13 in a region surrounded by the course changing member 67 and the intermediate roller 13. Since the sheet P has high rigidity, when the sheet P slides while pressing against the inner surface of the path changing member 67 while pressing against the inner surface, the force of pressing the inner surface of the path changing member 67 of the sheet P is a pressing force. By resisting the pressing force of the member 69 and the urging force of the locking member 71, the course changing member 67 is displaced (slid) outward.
The operation in which the course changing member 67 is displaced outward has been described in connection with the operation of the lock mechanism 70, and thus will not be described.

  By the lock mechanism 70, the course changing member 67 slides on the support bearing portion 72 and is locked at the position corresponding to the amount of displacement by the locking receiving pawl 71b, thereby being maintained at the position corresponding to the amount of displacement. In other words, the path changing member 67 as the path changing section displacement member (or the bending displacement member 55A as a bending space displacement member described later) is maintained at a position displaced by the lock mechanism 70 in accordance with the rigidity of the sheet P. . With this operation, a new fourth conveyance path 42A surrounded by the intermediate roller 13 and the course changing member 67 is formed.

With this operation, the link mechanism 80A operates.
In the link mechanism 80A, the first arm 81A connected to the first joint 83A moves substantially in the −Y direction by the movement of the course changing member 67 to the outside of the third conveyance path 41A. As the first arm 81A moves, the second arm 82A connected to the second joint 84A rotates counterclockwise about the rotation shaft 85A. The sliding portion 82Aa formed at the other end of the second arm 82A rotates counterclockwise about the rotation shaft 85A.

  Due to the rotation of the sliding portion 82Aa in the counterclockwise direction, the contacting bending displacement member 55A rotates counterclockwise about the rotation shaft 56A. Thus, the bending displacement member 55A is displaced in the bending space forming portion 50A to a position separated from the transport path 40A (the fourth transport path 42A). As a result, the second transport path 52A is newly formed as shown in FIG. 7 by being surrounded by the upper transport guide member 53 and the bending displacement member 55A.

  In other words, the course changing member 67 changes the bending displacement member 55A to the conveyance path 40A (fourth conveyance path) in accordance with the amount of displacement of the sheet P by the path changing section 60A to the outside of the conveyance path 40A (third conveyance path 41A). By displacing in the direction away from 42A), the volume of the bending space forming portion 50A is expanded. Thereby, in the bending space forming section 50A, the volume of the bending space forming section 50A is expanded more than the volume of the first conveying path 51A by forming the second transport path 52A.

  When the bending displacement member 55A rotates counterclockwise around the rotation shaft 56A in the second conveyance path 52A, the distal end of the bending displacement member 55A on the downstream side cross-sections to the lower conveyance guide member 58. However, the overlapping regions with the lower transport guide member 58 are formed, for example, in a comb shape so as not to overlap each other in a plan view.

  The sheet P transported in the fourth transport path 42A is sent out from the nip position between the intermediate roller 13 and the driven roller 14b, and then transported in the second transport path 52A. The paper P conveyed in the second conveyance path 52A is conveyed while bending without buckling due to the volume expanded as compared with the first conveyance path 51A. It hits the nip position of pair 16. At this time, the transport roller pair 16 has stopped driving.

  In this state, a so-called skew in which the sheet P is sent obliquely to the second transport path 52A may occur. The operation of the skew correction is the same as that of the first embodiment, and the description is omitted. Note that the volume of the second transport path 52A is set so as to allow deflection of the paper P that is sent out extra. By performing such an operation, the leading ends of the sheets P can be aligned, and skew can be eliminated (skew correction). The operation of the sheet P after the skew correction is the same as in the first embodiment, and a description thereof will not be repeated.

  Here, in the case where the paper P having a high rigidity is changed to the paper P having a low rigidity, the lock is released by the operation described above by the operation of the cam member 73 in accordance with the instruction of the control unit. Then, the pressing member 69 presses the course changing member 67 toward the inside of the fourth conveyance path 42A by the pressing force, thereby returning to the state of the third conveyance path 41A where the paper P having low rigidity is conveyed. With this operation, the link mechanism 80A operates.

  In the link mechanism 80A, the first arm 81A connected to the first joint 83A moves substantially in the + Y direction when the course changing member 67 is displaced inside the fourth conveyance path 42A. As the first arm 81A moves, the second arm 82A connected to the second joint 84A rotates clockwise about the rotation shaft 85A. The sliding portion 82Aa formed at the other end of the second arm 82A rotates clockwise about the rotation shaft 85A.

  The rotation of the sliding portion 82Aa in the clockwise direction causes the contacting bending displacement member 55A to rotate clockwise about the rotation shaft 56A. Thereby, the bending displacement member 55A is displaced to a position closer to the conveyance path 40A (the third conveyance path 41A) in the bending space forming section 50A, and the first conveyance path 51A is formed.

  As described above, according to the processing apparatus 100A according to the present embodiment, in addition to the same effects as those of the processing apparatus 100 according to the first embodiment, the following effects can be obtained.

  According to the processing apparatus 100A of the present embodiment, the course changing member 67 can be displaced (slid) to the outside of the transport path 40A (the third transport path 41A), and the bending displacement member 55A is positioned at one end in the transport direction F. A rotation shaft 56A is provided at the upstream end as a fulcrum, and is rotatable. In addition, the bending displacement member 55A rotates when the displacement of the course changing member 67 is transmitted to the bending displacement member 55A. In this way, the first transport path 51A and the second transport path 52A are formed by appropriately transmitting the displacement of the course changing member 67 to the bending displacement member 55A by utilizing the slide and the rotation. A configuration that can be realized can be easily realized.

  According to the processing device 100A of the present embodiment, the course changing section 60A has a curved shape, and the course changing member 67 is disposed outside the curved shape, so that the paper P is transported on the transport path 40A. In such a case, the paper is smoothly conveyed by sliding the curved area (inner surface) or the like.

  According to the processing apparatus 100A of the present embodiment, the path changing member 67 or the bending displacement member 55A is maintained at a position displaced by the lock mechanism 70 according to the rigidity of the sheet P. Accordingly, it is possible to reduce the variation in the displacement of the course changing member 67 due to the position and angle at which the sheet P hits. Therefore, the third transport path 41A and the fourth transport path 42A can be formed according to the rigidity of the sheet P, whereby the displacement of the bending displacement member 55A can be a stable displacement with reduced variation. Thus, the first transport path 51A and the second transport path 52A according to the rigidity of the sheet P can be formed.

  In the first and second embodiments described above, when skew correction is performed, the transport driving roller 16a is not rotated. However, the skew correction can also be reliably performed by rotating the transport driving roller 16a in the direction opposite to the transport direction F and rotating the intermediate roller 13 in the direction in which the intermediate roller 13 is transported in the transport direction F.

  The processing apparatuses 100 and 100A of the first and second embodiments described above may be provided as a skew feeding correction device, and skew feeding can be corrected without performing a complicated mechanism or control.

  The processing devices 100 and 100A according to the first and second embodiments described above may be provided as a recording device including the printer according to the present embodiment. By doing so, it is possible to solve problems such as occurrence of a paper jam and printing not being performed at a predetermined position.

  Hereinafter, the content derived from the above-described embodiment will be described.

  The processing device is configured to perform a predetermined process on the conveyed medium, a skew correction roller pair that corrects skew of the medium at the nip position, and an upstream of the skew correction roller pair on the upstream side of the processing unit. A flexure space forming portion that is formed on the side and allows flexure of the medium when correcting skew, and has a course changing portion that changes the course of the medium on the upstream side of the flexure space forming portion in the transport direction. A transport path for transporting the skew correction roller to the opposite side, a bending space displacing member capable of being displaced to a position approaching to and away from the transport path in the bending space forming section; And a path changing member that can be displaced in accordance with the rigidity of the medium. The flexible space displacement member is displaced in accordance with the displacement of the path changing member.

With this configuration, the processing apparatus of the present invention includes the transport path having the route changing section on the upstream side of the bending space forming section, and the route changing section displacement member forming a part of the transport path corresponds to the rigidity of the medium. Displace. Then, a flexure space forming section is formed by the flexure space displacement member that is displaced to a position approaching to and away from the transport path in response to the displacement of the course changing portion displacement member.
Conventionally, in a region where a bending space for skew correction is formed, the bending space is varied according to the rigidity of the medium, and how the medium hits (positions) the guide surface (corresponding to the path change portion displacement member). And the angle), the volume of the formed bending space changes, and it has been difficult to secure an appropriate volume of the bending space for performing skew correction.
However, the processing apparatus of the present invention includes a transport path on the upstream side of the flexure space forming section, which is an area forming the flexure space, and the course changing section displacement member constituting the transport path is displaced according to the rigidity of the medium. Thus, the bending space for performing the skew correction is changed to form the bending space forming portion.
With this configuration, it is possible to form a flexible space in which a change in the volume of the flexible space is reduced in accordance with the rigidity of the medium. Accordingly, it is possible to secure an appropriate volume of the bending space for performing the skew correction in accordance with the rigidity of the medium.

  In the above-described processing apparatus, the path changing unit displacement member displaces the bending space displacement member in a direction away from the transport path in accordance with the amount of displacement of the path changing unit by the medium to the outside of the transport path, thereby providing a flexible space. Preferably, the volume of the formation is expanded.

  According to this configuration, the course changing section displacement member displaces the flexure space displacement member in a direction away from the transport path in accordance with the amount of displacement of the medium to the outside of the transport path, thereby increasing the volume of the flexure space forming section. Is formed to form a new bending space forming portion. Thus, for example, when the rigidity of the medium is high, by forming a new flexure space forming section that expands the volume of the flexure space forming section, when performing skew correction, sufficient flexure is performed for a rigid medium. Therefore, paper skew and the like can be prevented, and appropriate skew correction can be performed.

  In the processing apparatus described above, it is preferable that a pressing member that presses the path changing unit displacement member toward the inside of the transport path is disposed in the path changing unit.

  According to this configuration, the pressing member that presses the path changing unit displacement member toward the inside of the transport path is disposed in the path changing unit. With this pressing member, the course changing section displacement member can be appropriately displaced according to the rigidity of the medium.

  In the above-described processing apparatus, it is preferable that the course changing portion displacement member be displaced against the pressing force of the pressing member due to the rigidity of the medium.

  According to this configuration, the course changing portion displacement member is displaced against the pressing force of the pressing member due to the rigidity of the medium. Thereby, the medium can be appropriately bent and conveyed to the space forming section according to the rigidity of the medium. Further, the pressing force of the pressing member can be appropriately set according to the rigidity of the medium.

  In the above-described processing apparatus, the course changing unit displacement member is rotatable about a fulcrum at one end in the conveyance direction, and the bending space displacement member is rotatable about a fulcrum at one end in the conveyance direction. It is preferable that the member is rotated by rotation of the course changing portion displacement member being transmitted to the space displacement member.

  According to this configuration, the course changing portion displacement member is rotatable about the fulcrum at one end in the transport direction. The bending space displacement member is rotatable about a fulcrum on one end side in the transport direction. Then, the bending space displacement member is rotated by the rotation of the course changing portion displacement member being transmitted. As described above, by using the rotating mechanism, it is possible to easily realize a configuration in which the displacement of the course changing portion displacement member is transmitted to the flexure space displacement member to form the flexure space forming portion. In addition, by using a rotating mechanism, an electrical configuration can be reduced and a processing device can be realized with a mechanical configuration.

  In the above-described processing apparatus, it is preferable that the course changing portion displacement member is divided into two parts, an upstream side and a downstream side in the transport direction, and each of the members is rotated at an upstream fulcrum and a downstream fulcrum.

  According to this configuration, the course changing portion displacement member is divided into two parts, the upstream side and the downstream side in the transport direction. Then, the course changing portion displacement member rotates at an upstream fulcrum (for example, a rotation axis) and also rotates at a downstream fulcrum (for example, a rotation axis). In this way, the path changing part displacement member divided into two and the rotation at the upstream fulcrum and the downstream fulcrum can be configured to be substantially plane-symmetrical by the rotation at the upstream fulcrum and the downstream fulcrum. Can be displaced. Therefore, the displacement of the course changing portion can be made more stable as compared with the case of displacing only one fulcrum as one course changing portion displacement member without dividing into two. With this configuration, the displacement of the flexure space displacement member can be made a stable displacement with reduced variation, and a flexure space forming portion corresponding to the rigidity of the medium can be formed.

  In the above-described processing apparatus, the course changing unit displacement member can be displaced to the outside of the conveyance path, the bending space displacement member can rotate about a fulcrum at one end in the conveyance direction, and the bending space displacement member It is preferable that the displacement of the change portion displacement member bend and be transmitted to the space displacement member to rotate.

  According to this configuration, the course changing portion displacement member can be displaced (for example, slid) to the outside of the transport path, and the flexible space displacement member can rotate about a fulcrum on one end side in the transport direction. Further, the deflection space displacement member is rotated by the displacement of the course changing portion displacement member being transmitted to the deflection space displacement member. As described above, by using the sliding or rotating mechanism, it is possible to easily realize a configuration in which the displacement of the course changing portion displacement member is transmitted to the flexure space displacement member to form the flexure space forming portion. In addition, by using a sliding or rotating mechanism, the processing device can be realized with a mechanical configuration with a reduced electrical configuration.

  In the above processing apparatus, it is preferable that the course changing section has a curved shape, and the course changing section displacement member is arranged outside the curved shape.

  According to this configuration, the course changing section has a curved shape, and the course changing section displacement member is disposed outside the curved shape, so that when the medium is transported on the transport path, the curved area ( By sliding the inner surface), it can be smoothly transported.

  In the above-described processing apparatus, it is preferable that the path changing unit displacement member or the bending space displacement member is maintained at a position displaced by the lock mechanism in accordance with the rigidity of the medium.

  According to this configuration, the path changing portion displacement member or the bending space displacement member is maintained at a position displaced according to the rigidity of the medium by the lock mechanism, so that the path changing portion displacement member depending on the position and angle at which the medium hits. Variation in displacement can be reduced. Therefore, it is possible to form a transport path according to the rigidity of the medium, and to make the displacement of the flexural space displacement member a stable displacement with reduced variation. Can be formed.

  The skew feeding correction device includes any one of the processing devices described above.

  According to this configuration, since the skew feeding correction device includes the processing device, the skew feeding correction can be performed without performing a complicated mechanism or control.

  The recording device includes any one of the processing devices described above.

  According to this configuration, since the recording device includes the processing device, the skew correction of the medium can be performed by the processing device having the simple configuration, so that the clogging of the medium or the printing is performed at the predetermined position. It is possible to solve such problems as not being present.

  DESCRIPTION OF SYMBOLS 1 ... Printer as a recording device, 10 ... Recording head as a processing part, 16 ... Conveyance roller pair as a skew correction roller pair, 40, 40A ... Conveyance path, 41, 41A ... 3rd conveyance path which comprises a conveyance path .., 42, 42A... A fourth transport path constituting a transport path, 50... A flexible space forming section, 51, 51A. A first transport path constituting a flexible space forming section, 52, 52A. 2 transport path, 55, 55A: bending displacement member as bending space displacement member, 56, 56A: rotating shaft as a fulcrum on one end side of bending space displacement member, 60, 60A: path changing section, 61: path changing section The first path changing member on the upstream side that is divided into two parts constituting the displacement member, 62... The first rotating shaft as the fulcrum on one end side and the fulcrum on the upstream side, 64. downstream A second pressing member constituting a pressing member; 63, a second rotating shaft serving as a downstream fulcrum; 66, a second pressing member forming a pressing member; 67, a displacing portion displacement; Path changing member constituting member, 69: pressing member, 70: locking mechanism, 80, 80A: link mechanism, 100, 100A: processing device, F: transport direction, P: paper as medium.

Claims (11)

A processing unit that performs a predetermined process on the transported medium;
On the upstream side of the processing unit, a skew correction roller pair that corrects the skew of the medium at the nip position,
A bending space forming portion formed on the upstream side of the skew correction roller pair and allowing the medium to bend when correcting skew;
A transport path that has a path changing unit that changes the path of the medium on the upstream side of the bending space forming unit in the transport direction, and that transports the medium to the skew correction roller pair,
In the bending space forming section, a bending space displacement member capable of being displaced to a position approaching and away from the transport path,
Forming a part of the transport path of the course changing section, a course changing section displacement member that can be displaced in accordance with the rigidity of the medium,
The processing apparatus according to claim 1, wherein the bending space displacement member is displaced in accordance with a displacement of the course changing portion displacement member. The processing device according to claim 1,
The path changing unit displacement member is configured to displace the bending space displacement member in a direction away from the transport path in accordance with an amount of displacement of the path change unit by the medium to the outside of the transport path, whereby the bending is performed. A processing device characterized by expanding the volume of a space forming part. The processing device according to claim 1 or 2, wherein:
A processing apparatus, wherein a pressing member that presses the path changing unit displacement member toward the inside of the transport path is disposed in the path changing unit. The processing device according to claim 3, wherein
The processing apparatus according to claim 1, wherein the path changing unit displacement member is displaced by a rigidity of the medium against a pressing force of the pressing member. The processing device according to any one of claims 1 to 4, wherein
The course changing portion displacement member is rotatable around a fulcrum on one end side in the transport direction,
The bending space displacement member is rotatable around a fulcrum on one end side in the transport direction,
The processing apparatus according to claim 1, wherein the bending space displacement member is rotated by transmitting rotation of the course changing portion displacement member to the bending space displacement member. The processing device according to claim 5, wherein
The processing apparatus according to claim 1, wherein the path changing unit displacement member is divided into two parts, an upstream side and a downstream side, in the transport direction, each of which rotates around an upstream fulcrum and a downstream fulcrum. The processing device according to any one of claims 1 to 4, wherein
The course changing unit displacement member is displaceable outside the transport path,
The bending space displacement member is rotatable around a fulcrum on one end side in the transport direction,
The processing apparatus according to claim 1, wherein the deflection space displacement member is rotated by a displacement of the course changing portion displacement member being transmitted to the deflection space displacement member. The processing device according to any one of claims 1 to 7,
The processing apparatus according to claim 1, wherein the course changing section has a curved shape, and the course changing section displacement member is arranged outside the curved shape. The processing device according to any one of claims 1 to 8, wherein
The processing apparatus according to claim 1, wherein the path changing unit displacement member or the bending space displacement member is maintained at a position displaced by a lock mechanism in accordance with the rigidity of the medium.   A skew feeding correction device comprising the processing device according to claim 1.   A recording apparatus comprising the processing device according to claim 1.

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