JP4738965B2 - Conveying mechanism and recording apparatus - Google Patents

Description

  The present invention relates to a transport mechanism and a recording apparatus including the transport mechanism.

  2. Description of the Related Art Conventionally, a recording apparatus that prints and records characters, images, and the like by ejecting ink droplets onto a recording material (printing medium) such as recording paper, represented by an inkjet printer, has been provided. This type of recording apparatus includes a conveyance mechanism that conveys a recording material, and a printing recording mechanism that performs printing recording such as printing on the recording material while sliding in a width direction orthogonal to the conveyance direction of the recording material. And comprising. The transport mechanism mainly includes a transport roller that transports the recording material, and a pressure roller that is disposed opposite to the transport roller and presses the recording material against the transport roller. A platen disposed so as to extend in the width direction of the recording material is provided at a location adjacent to the transport mechanism. The print recording mechanism mainly includes a carriage that moves in the width direction of a recording material disposed on a platen, and a recording head that is accommodated in the carriage (see, for example, Patent Document 1).

In the recording apparatus configured in this manner, the recording medium is transported little by little by the transport mechanism, and the recording head ejects ink droplets as the carriage slides, thereby printing characters and images on the recording material. I will do it. Here, for the purpose of preferably transporting the recording material and preventing the recording material from floating, a plurality of (for example, 19) transport mechanisms described above are provided at appropriate intervals in the width direction of the recording material. Is provided.
Japanese Patent Laid-Open No. 5-221053

  On the other hand, some recording materials recorded by the above-described recording apparatus have a particularly wide width. When such a recording material is printed and recorded using the above-described recording apparatus, wrinkles may occur in the recording material while being conveyed by the conveyance mechanism. Such wrinkles are prominent when the recording material is heated and expanded by a heater or the like provided on a platen or the like. In addition, it appears remarkably when the recording material has a soft property such as cloth. If such wrinkles occur in the recording material, a problem that a deviation occurs in the print recording occurs.

  The present invention has been made in view of such circumstances, and an object of the present invention is to convey a wrinkle generated on a recording material to be printed and sandwiched between a conveying roller and a pressure roller. It is an object of the present invention to provide a mechanism and a recording apparatus capable of preferably eliminating the misalignment of print recording by preferably extending wrinkles generated on the recording material.

  In order to solve the above-described problems, the present invention provides a transport mechanism and a recording apparatus of the following means.

  The transport mechanism according to the present invention includes a transport roller that transports the recording material in contact with the lower surface of the recording material, a pressure roller that is disposed opposite to the transport roller and contacts the upper surface of the recording material, and the pressurizing roller. A urging member that urges the pressure roller toward the conveying roller to urge the pressure roller from the conveying roller against the urging force of the urging member. A forcible separation operation unit that forcibly separates and releases the pressure of the pressure roller toward the transport roller is provided.

  In the transport mechanism according to the present invention, when the pressure roller is forcibly separated from the transport roller and the pressure of the pressure roller toward the transport roller is released by the forced separation operation unit, Until then, the recording member sandwiched between the conveying roller and the pressure roller in contact with the lower surface and the upper surface can be freely moved.

  Therefore, even if wrinkles occur in the recording material while the recording material is being conveyed, the forced separation operation unit does not press the pressure roller toward the conveying roller. Since the recording member is opened, the recording member can be freely moved, and the wrinkles generated near the transport mechanism can be preferably extended.

A transport mechanism according to the present invention includes a transport roller that transports the recording material in contact with the lower surface of the recording material, and a pressure roller that is disposed opposite to the transport roller and contacts the upper surface of the recording material. A pressure mechanism, and the pressure mechanism is pivotally supported by the fixed member so that the fixed member and an intermediate portion have an axis parallel to the conveying roller. a swing support member, and the pressure roller which is rotatably supported in the lower than the upper surface of the transport roller and has an axis parallel the rocking support member and the swing support member a tip of one end The pressure roller is attached to the fixed side member and the other end is attached to the rear end portion of the swing support member so that the rear end portion of the swing support member is pulled toward the fixed side member. Biasing that biases and presses against the conveying roller The fixed side member is provided with a protruding contact portion that protrudes toward the swing support member on the rear end side from the shaft support portion that supports the swing support member, and the fixed side member Between the member and the rocking support member, the upper surface of the rocking support member slides so that the pressure roller can be brought into contact with and released from the conveying roller at a position where it comes into contact with the protruding contact portion. However, an insertion member is provided so as to be movable in a direction linear shape on the front end side or the rear end side, and the insertion member is configured such that the rear end side of the insertion member is more than the front end side. Formed to project to the fixed side member side, having a slope from the tip end side to the rear end portion side, and having a recess into which the projecting contact portion fits on the rear end portion side, The concave portion is moved from the tip end side toward the rear end portion side so as to come into contact with the protruding contact portion. The rear end portion of the fixed side member and the swing support member against the bias of the biasing member when inserted between the fixed side member and the swing support member And the pressure roller is separated from the conveying roller.

  In the transport mechanism according to the present invention, when the insertion member is inserted between the fixed side member and the swing support member so as to contact the protruding contact portion, the biasing member is attached. The distance between the fixed side member and the rear end portion of the swing support member is forcibly enlarged against the force. At this time, since the fixed side member is fixed, the rear end portion of the swing support member moves so as to be separated from the fixed side member. If it does so, it will move so that the front-end | tip part of a rocking | swiveling support member may approach a fixed side member by using the location pivotally supported by the fixed side member as a fulcrum. At the same time, the pressure roller that is pivotally supported at the tip of the swing support member also approaches the stationary member.

  Accordingly, the pressure roller is forcibly separated from the conveying roller by forcibly approaching the fixed member. As a result, the pressure of the pressure roller toward the conveyance roller is released, and the recording member sandwiched between the conveyance roller and the pressure roller can be freely moved while the lower surface and the upper surface are in contact with each other. . As a result, even if the recording material is wrinkled while the recording material is being conveyed, the pressure applied to the conveying roller of the pressure roller is released, so The recording member can be freely moved, and the wrinkles generated near the transport mechanism can be preferably stretched.

  In the transport mechanism according to the present invention, the interposition member is provided with a movement restricting step portion that abuts against an abutting wall portion provided on the fixed side member and restricts the movement of the interposition member. It is characterized by.

  In the transport mechanism according to the present invention, the insertion member is provided with a movement regulation step portion that abuts against the abutting wall portion provided on the fixed side member and regulates the movement of the insertion member. Even when the insertion member is moved, the movement restricting step abuts against the abutting wall portion provided on the fixed side member to restrict the movement, so that the insertion member moves too much and is fixed. It is preferable to prevent the side member and the swing support member from coming off and coming off.

  Therefore, since the insertion member is preferably held between the fixed-side member and the swinging support member, the insertion member is not lost and can be moved immediately when it is desired to move.

  The recording apparatus according to the present invention is a recording apparatus provided with a print recording mechanism for performing print recording such as printing on the recording material, and a plurality of the transport mechanisms are installed in the width direction of the recording material to be transported. In addition, any one of a plurality of the transport mechanisms installed can be arbitrarily selected to pressurize the pressure roller toward the transport roller.

  In the recording apparatus according to the present invention, since a plurality of the transport mechanisms described above are installed in the width direction of the recording material to be transported, when the recording material is transported while being printed and recorded, Even if wrinkles occur in the recording material near the transport mechanism, select the transport mechanism installed near the part where the wrinkles are generated among the recording materials, as described above. The pressure applied to the conveying roller of the pressure roller can be released to freely move the recording member, and the wrinkles generated near the conveying mechanism can be preferably stretched. It should be noted that the conveyance mechanism in the vicinity of the portion where no wrinkle is generated among the recording materials to be conveyed can be left in a pressurized state.

  Accordingly, the generated wrinkles can be preferably stretched, and the print recording misalignment caused by the wrinkles can be preferably eliminated. Further, since the pressure applied to only a desired portion of the recording material can be released and moved freely, it is excellent in delicate convenience.

  The recording apparatus according to the present invention is characterized in that a heating unit is provided for heating the recording material before printing and recording is performed by the print recording mechanism.

  In the recording apparatus according to the present invention, since a heating unit for heating the recording material is provided before printing is recorded by the printing recording mechanism, printing recording by the printing recording mechanism is preferably performed by this heating unit. The recording material is heated as is done. Here, the heated recording material becomes prone to wrinkle remarkably due to thermal expansion. However, according to this recording apparatus, as described above, a conveyance mechanism installed near the ridge generated by thermal expansion is selected from the recording material, and the pressure roller is applied to the conveyance roller. The wrinkles generated by releasing the pressure and moving the recording member freely can be preferably stretched. It should be noted that the conveyance mechanism in the vicinity of the portion where no wrinkle is generated among the recording materials to be conveyed can be left in a pressurized state.

  Accordingly, the wrinkles generated by the thermal expansion can be preferably extended, and the misalignment of print recording caused by the wrinkles can be preferably eliminated, and further, the print recording by the print recording mechanism is also preferably performed.

  The recording apparatus according to the present invention transports the recording material having a soft property such as a cloth by the transport mechanism, and performs printing recording on the recording material having the soft property by the print recording mechanism. Features.

  In the recording apparatus according to the present invention, when the recording material transported by the transport mechanism has a soft property such as a cloth, when the transported material is transported, the softness is remarkably reduced. This is likely to occur. However, according to the recording apparatus, a recording mechanism installed near the generated wrinkle is selected from the recording material to release the pressure applied to the conveying roller of the pressure roller, and the recording member The wrinkles generated by freely moving can be preferably stretched. It should be noted that the conveyance mechanism in the vicinity of the portion where no wrinkle is generated among the recording materials to be conveyed can be left in a pressurized state.

  Therefore, the wrinkles generated when transported from the softness can be preferably extended, and the misalignment of the print record caused by the wrinkles can be preferably eliminated, and the print recording by the print recording mechanism is also preferably performed. Is called.

  According to the transport mechanism according to the present invention, wrinkles generated on a recording material to be printed and sandwiched between the transport roller and the pressure roller can be preferably stretched. Further, according to the recording apparatus of the present invention, it is possible to preferably eliminate the misalignment of print recording by preferably extending the wrinkles generated in the recording material.

  Hereinafter, the best embodiment of a pressurizing mechanism and a recording apparatus according to the present invention will be described with reference to the drawings. 1 is a perspective view of an ink jet printer as an example of a recording apparatus according to the present invention, FIG. 2 is a perspective view of a pressurizing mechanism, and FIGS. 3 to 6 are perspective views of respective members constituting a fixed-side member. FIG. 7 is a perspective view of a swing support member that is pivotally supported by the fixed member, and FIG. 8 is a perspective view of the insertion member.

  Reference numeral 1 in FIG. 1 denotes an ink jet printer as an example of a recording apparatus according to the present invention. The ink jet printer 1 performs printing and recording while conveying a sheet-like recording paper (not shown) as a recording material. The ink jet printer 1 is roughly provided on a base 2 and the base 2. And a print recording mechanism 4 for printing and recording on the recording paper. The recording material is not limited to general recording paper, and an appropriate recording medium such as a recording medium made of a heatable resin or a soft cloth can be selected.

  The transport mechanism 3 according to the present invention includes a transport roller 3a that rotates in response to the rotation of a motor and a pressure mechanism 10 that includes a pressure roller 40 that presses the transport roller 3a. Is done. A recording sheet as a recording material is sandwiched between the conveying roller 3a and the pressure roller 40. A platen 5 that supports recording paper is provided at a location adjacent to the transport mechanism 3. The platen 5 is a place where recording paper is printed and recorded by the print recording mechanism 4. Moreover, although not shown in figure, the heater (equivalent to the heating part in this invention) for heating this platen is provided under this platen 5. As a result, the recording material such as recording paper is heated by the platen 5 before being printed and recorded by the print recording mechanism 4. The heating unit in the present invention includes a heater that is heated before being conveyed onto the platen 5. The transport roller 3a and the platen 5 are provided on the base 2 so as to extend in a direction orthogonal to the direction in which the recording paper is transported. In addition, the transport mechanism 3 including the transport roller 3a and the pressure mechanism 10 is arranged in 19 sets at a predetermined interval (for example, 87.65 mm) on the same axis line at adjacent portions of the platen 5.

  The print recording mechanism 4 roughly includes a recording head 9a that performs recording by ejecting ink droplets onto recording paper, a carriage 9 that accommodates the recording head 9a, a conveyance belt 6 that connects the carriage 9, and this conveyance. A set of pulleys 7 and 7 that move the belt 6, a drive motor (not shown) that rotationally drives the pulleys 7 and 7, a guide rail 8 that guides the sliding movement of the carriage 9, and the like are configured. ing. Further, like the platen 5, the transport belt 6 and the guide rail 8 are provided on the base 2 so as to extend in a direction orthogonal to the direction in which the recording paper is transported. As a result, the carriage 9 slides in a direction (A direction, B direction) orthogonal to the direction in which the recording paper is conveyed.

  Next, the pressurizing mechanism 10 constituting a part of the above-described transport mechanism 3 will be described. That is, the pressurizing mechanism 10 is disposed so as to form a pair for each transport roller 3a that transports the recording paper, and presses the recording paper toward the transport roller 3a. In other words, the recording paper is transported between a transport roller 3a that is transported in contact with the lower surface and a pressure mechanism 10 that includes a pressure roller 40 that is disposed opposite to the transport roller 3a and is pressed against the upper surface. It is arranged.

  As shown in FIG. 2, the pressurizing mechanism 10 is roughly supported by a fixed side member 20 fixedly attached to the base 2 of the recording apparatus 1, and pivotally supported by the fixed side member 20. The swing support member 30, the pressure roller 40 pivotally supported at the front end portion (C side portion) of the swing support member 30, and the rear end portion (D side portion) of the swing support member 30 are fixed side members. And a coil spring (corresponding to an urging member in the present invention) 39 provided so as to be pulled toward the 20 side.

  As shown in FIGS. 3 to 6, the fixed-side member 20 is roughly stored in the fixed-side member main body 21 and the fixed-side member main body 21, and the rotation operation mechanism that operates the swing support member 30. 22. As shown in FIG. 3, the fixed-side member main body 21 is provided with an attachment claw portion 21 a attached to the base 2 on the upper side, and a swing support member 30 on the lower end portion side (C direction). A supporting shaft 21b is provided. And between this attachment nail | claw part 21a and the axial support part 21b, the accommodation recessed part 21c which accommodates the rotation operation mechanism 22 opened on the lower side is formed. Further, two spring locking projections 21d for locking one end of the coil spring 39 are provided on the rear end side (D direction) so as to protrude outward. Further, in the lower part of the fixed-side member main body 21, a contact rounded portion 21 e that is formed in a rounded shape with a convex downward is provided to contact the insertion enlarged portion 54 of the insertion member 50. The contact rounded portion 21e corresponds to the protruding contact portion in the present invention, and protrudes toward the swing support member 30 on the rear end side (D direction) from the shaft support portion 21b that supports the swing support member 30. Is provided. Moreover, although the fixed side member main body 21 which comprises this fixed side member 20 is equivalent to the fixed side member in this invention, if it is comprised even if temporarily, it is contained. L3 is the rotation axis of the swing support member.

  As shown in FIGS. 4 to 6, the rotation operation mechanism 22 accommodates the rotation operation member 23 that operates to swing the swing support member 30 by rotating, the rotation operation member 23, and the rotation operation member 23. A spring expansion / contraction member 24 that expands / contracts the coil spring 39 in accordance with the rotation, and an accommodation / fixation that supports the spring expansion / contraction member 25 while being provided with the rotation operation member 23 and the spring expansion / contraction member 24 and is accommodated in the accommodation recess 21c of the fixed-side member main body 21. And a member 25.

  As shown in FIG. 4, the rotation operation member 23 is formed in a substantially cylindrical shape having an operation penetration portion 23 a that is penetrated in the width direction of the transport roller 3 a, and the outer circumferential surface is shifted from each other. Two cam surfaces 23b and 23c projecting outward are provided. An operation shaft (not shown) is inserted through the operation through portion 23a to rotate the rotation operation member 23. Of the two cam surfaces 23 b and 23 c, the first cam surface 23 b abuts on a part of the swing support member 30, and the second cam surface 23 c abuts on a part of the spring telescopic member 24. Note that L1 is a rotation axis of an operation shaft (not shown). Further, in this recording apparatus 1, the same operation shaft as the operation shaft inserted into the operation penetration portion 23 a is also inserted into the other operation penetration portions 23 a that constitute all the pressurizing mechanisms 10. The rotation operation mechanism 22 of all the pressurization mechanisms 10 to be installed can be operated by one operation. Further, the rotation operation member 23 is accommodated in the accommodation recess 24 a of the spring expansion / contraction member 24.

  As shown in FIG. 5, the spring expansion / contraction member 24 is provided with an accommodation recess 24 a for accommodating the rotation operation member 23, and the shaft support portion 25 b of the accommodation fixing member 25 is fitted into the distal end side (C direction). A shaft support 24b is provided. Further, one spring locking protrusion 24c that locks one end of the coil spring 39 is provided on the rear end side (D direction) so as to protrude outward. Note that a stepped portion 24 d with which the second cam surface 23 c of the rotation operation member 23 abuts is provided in the housing recess 24 a of the spring expansion / contraction member 24. L <b> 2 is the rotation axis of the spring elastic member 24.

  As shown in FIG. 6, the housing fixing member 25 is provided with an attachment claw portion 25 a attached to the base 2 on the upper side, and the shaft support portion 24 b of the spring expansion and contraction member 24 is fitted on the lower side to expand and contract the spring. A shaft support portion 25b (axis line L2) that supports the rotation of the member 24 is provided. In addition, the housing fixing member 25 is provided with a housing recess 25 c that houses the rotation operation member 23 and the spring elastic member 24.

  The rotation operation member 23, the spring expansion / contraction member 24, and the accommodation fixing member 25 configured as described above are assembled to form the rotation operation mechanism 22. The rotation operation mechanism 22 is housed in the housing recess 21 c of the fixed-side member main body 21 to form the fixed-side member 20. Further, the rotation operation mechanism 22 rotates the rotation operation member 23 to bring the second cam surface 23c into contact with a part of the spring expansion / contraction member 24 and to apply the pressure roller 40 toward the conveyance roller 3a. The pressure state can be changed. Moreover, in this rotation operation mechanism 22, since the rotation mechanism 22 of all the pressurization mechanisms 10 installed can be operated with one operation axis which is not illustrated, all the installations are carried out by one operation. The pressurization state of the pressurization mechanism 10 of the transport mechanism 3 can also be changed. In this changed pressure state, the pressure is weakly applied toward the conveying roller 3a of the pressure roller 40, and the pressure is weak toward the conveying roller 3a of the pressure roller 40. There is a high pressure state where pressure is applied. Further, in addition to this pressure state, the rotation operation mechanism 22 causes the first cam surface 23b to abut against the insertion member abutting inclined surface 35 so that the pressure toward the conveying roller 3a of the pressure roller 40 is released. It can also be changed to the pressurized release state.

  Next, the rocking support member 30 that is pivotally supported by the shaft support portion 21b of the fixed-side member main body 21 will be described. As shown in FIG. 7, the swing support member 30 is formed with a substantially rhombic cross section in the orthogonal direction of the transport roller 3 a provided with an appropriate inclined surface. The swing support member 30 is on an axis parallel to the transport roller 3a, and the shaft support portion 34 in which the shaft support portion 21b of the fixed-side member main body 21 described above is fitted in an intermediate portion of the swing support member 30. Is provided (axis L3). Further, a pressure roller bearing portion 32 that supports the pressure roller 40 by being fitted with the rotation shaft portion 41 of the pressure roller 40 is provided on the tip end side (C direction) that is the conveyance roller 3a side. Yes. On the opposite end side (D direction), three spring locking projections 33 for locking the other end of the coil spring 39 are provided to protrude outward. The spring locking projection 33 is disposed opposite to the spring locking projection 21d provided on the fixed-side member main body 21 and the spring locking projection 24c provided on the spring elastic member 24. Both end portions of the coil spring 39 are locked to the spring locking protrusions 21d, 24c, 33 arranged opposite to each other. In addition, the code | symbol 35 is an insertion member contact inclined surface with which the lower surface of the insertion member 50 contacts.

  As shown in FIG. 7, the pressure roller 40 is provided with a rotation shaft portion 41 that protrudes outward from both ends on the rotation axis. The rotation shaft 41 is fitted into a pressure roller bearing 32 provided on the swing support member 30, and the pressure roller 40 is rotatably supported on an axis parallel to the transport roller 3a. Here, in this swinging support member 30, both end portions of the coil spring 39 are locked to the spring locking protrusions 21d, 24c, 33 arranged opposite to each other, so that the coil springs 21d, 24c, 33 are locked. The spring locking projections 21d, 24c, 33 are pulled by each other due to the tension elastic force. As a result, the spring locking protrusion 33 disposed at the rear end is pulled upward, and the pressure roller 40 disposed at the front end is pressed down. That is, the swing support member 50 is configured to rotate about the axis L3 as a rotation axis. By pressing down by the elastic force of the coil spring 39, the pressure roller 40 presses and presses the recording paper toward the transport roller 3a disposed below the pressure mechanism 10.

  Next, an insertion member (corresponding to a forced separation operation portion in the present invention) 50 provided between the fixed side member 20 and the swing support member 30 described above will be described. As shown in FIG. 8, the insertion member 50 includes a plate-like portion 51 formed in a plate shape provided with a notch portion 52 over a range where the rotation operation mechanism 22 described above faces. . The insertion member 50 is provided with a handle enlargement portion 53 that protrudes upward at the peripheral edge on the tip end side (C direction) of the plate-like portion 51. Further, an insertion enlarged portion 54 that protrudes upward in a step shape is provided on the peripheral edge in the width direction on the rear end side (D direction) where the notch 52 is formed. In addition, this insertion expansion part 54 becomes a location contact | abutted to the contact rounding part 21e of the stationary-side member main body 21 mentioned above. Further, the lower side surface of the insertion enlarged portion 54 is slidably brought into contact with the insertion member contact inclined surface 35 of the swing support member 40 described above.

  The insertion member 50 configured as described above is arranged so as to be sandwiched between the fixed side member 20 and the swing support member 30 when the fixed side member 20 and the swing support member 30 are assembled. As the arrangement position of the insertion member 50, the contact rounded portion 21e provided in the fixed-side member main body 21 described above is a position where it is arranged between the handle enlargement portion 53 and the insertion enlargement portion 54. . Further, the insertion member 50 is merely sandwiched between the fixed side member 20 and the swing support member 30, and slides between the fixed side member 20 and the swing support member 30. Be able to.

  Moreover, the insertion expansion part 54 provided in the insertion member 50 is extended upwards as it goes to a rear-end part side (D direction). That is, the uppermost surface portion 54a that protrudes most at the rear end portion is formed, and the roundness that is held in contact with the contact rounding portion 21e of the fixed-side member main body 21 from the uppermost surface portion 54a toward the front end portion side. The portion holding surface 54c and the guide inclined surface 54b for guiding the contact rounded portion 21e to the rounded portion holding surface 54c are provided. Reference numerals 51b and 54d correspond to the movement restricting step portion in the present invention, and will be described in detail together with the description of the subsequent operation. However, the protruding contact portion provided in the fixed side member 20 (the protruding portion in the present invention). The movement of the insertion member 50 is restricted. A flat plate portion 51a is formed between the reference numeral 51b and the reference numeral 53a provided near the center of the plate-like portion 51.

  The pressurizing mechanism 10 configured as described above operates as follows. FIGS. 9 and 11 are diagrams illustrating the interposition member standby position when the pressure roller 40 is pressed against the conveying roller 3a (hereinafter referred to as a “pressurized state”). 10 and 12 show the insertion member insertion positions when the pressure roller 40 is released from the pressure applied by pressing against the conveying roller 3a (hereinafter referred to as pressure released state). It is. 11 and 12 are perspective views of the lower surface side from which the swing support member 30 is removed.

  When the pressurizing mechanism 10 is in a pressurized state, the insertion member 50 is disposed at a position between the fixed side member 20 and the swing support member 30 as shown in FIGS. Is done. That is, as shown in FIGS. 9 and 11, the insertion member 30 has a flat plate portion 51 a in the plate-like portion 51 of the insertion member 30 below the contact rounded portion 21 e of the fixed-side member main body 21 described above. It arrange | positions between the stationary-side member 20 and the rocking | fluctuation support member 30 so that it may be arrange | positioned. The arrangement position of the insertion member 50 is an insertion member standby position where the pressure mechanism 10 is in a pressurized state. At the insertion member standby position, the handle is enlarged in the recesses adjacent to the front end side and the rear end side of the contact round portion 21e described above, which are spontaneously formed by providing the contact round portion 21e. The part 53 and the insertion expansion part 54 are accommodated. A rear end side abutting wall portion 21g (corresponding to the abutting wall portion in the present invention) is provided on the rear end side of the fixed side member main body 21, and at the insertion member standby position, The rear end side movement restricting step portion 54d contacts the rear end side contact wall portion 21g. As a result, the movement of the insertion member 50 toward the rear end side (D direction) is restricted, and the insertion member 50 is moved too much, so that it is removed from between the fixed side member 20 and the swinging support member 30. This is preferably prevented from coming off.

  Further, when the pressurizing mechanism 10 is in a pressure release state, the insertion member 50 is disposed between the fixed member 20 and the swing support member 30 as shown in FIGS. 10 and 12. Placed in position. That is, in the insertion member 30, as shown in FIGS. 9 and 11, the contact rounded portion 21 e provided in the fixed-side member main body 21 is rounded by the insertion enlarged portion 54 provided in the insertion member 50. It arrange | positions so that the part holding surface 54c may be contact | abutted. The arrangement position of the insertion member 50 is an insertion member insertion position where the pressurizing mechanism 10 is in a pressure release state.

  In the pressurizing mechanism 10 of the illustrated example, the insertion member 50 is moved from the insertion member standby position to the insertion member insertion position by moving the insertion member 50 toward the distal end side (C direction). At this time, the contact rounded portion 21e described above is guided to the rounded portion holding surface 54c by the guide inclined surface 54b. That is, against the tensile elastic force of the coil spring 39, the distance between the fixed side member 20 and the rear end portion (D side portion) of the swing support member 30 is gradually increased by the guide inclined surface 54b. Go. Thereby, the insertion member 50 can be smoothly moved to the distal end side (C direction), and the insertion member insertion position as shown in FIGS. 10 and 12 can be obtained. In addition, since this round part holding surface 54c is formed in a slightly concave shape, it preferably holds the contact round part 21e.

  Note that a distal end side abutting wall portion 21f (corresponding to the abutting wall portion in the present invention) is provided on the distal end side of the fixed side member main body 21, and this distal end is located at the insertion member insertion position. The tip end side movement restricting step portion 51b contacts the side contact wall portion 21f. As a result, the movement of the insertion member 50 toward the distal end side (C direction) is restricted, and the insertion member 50 moves too much, and comes off between the fixed side member 20 and the swing support member 30. Is preferably prevented.

  As described above, in the transport mechanism 3, the contact rounded portion 21 e provided in the fixed-side member main body 21 is provided in the insertion member (corresponding to the forced separation operation portion in the present invention) 50. When the insertion member 50 is moved (operated) so as to come into contact with the rounded portion holding surface 54c of the insertion expansion portion 54, it swings with the fixed-side member main body 21 against the tensile elastic force of the coil spring 39. The distance between the rear end portion (D side portion) of the support member 30 is forcibly enlarged. At this time, since the fixed member main body 21 is fixed, the rear end portion of the swing support member 30 moves so as to be separated from the fixed member main body 21. If it does so, it will rotate with the rotating shaft L3 which made the pivotal support part 21b of the stationary-side member main body 21 a fulcrum. As a result, the distal end portion (C side portion) of the swing support member 30 moves so as to approach the fixed-side member main body 21, and at the same time, the pressure supported by the distal end portion of the swing support member 30 is supported. The roller 40 also approaches the stationary member main body 21.

  Accordingly, the pressure roller 40 is forcibly separated from the transport roller 3a by being forced to approach the fixed-side member main body 21. As a result, the pressure of the pressure roller 40 toward the conveyance roller 3a is released, and the lower surface and the upper surface are in contact with each other, and the recording paper sandwiched between the conveyance roller 3a and the pressure roller 40 is freely moved. be able to. Thus, even if the recording paper is wrinkled while the recording paper is being conveyed, the pressure applied to the conveying roller 3a of the pressure roller 40 is released. The paper can be moved freely, and the wrinkles generated near the transport mechanism 3 can be preferably stretched.

  Further, in this ink jet printer (corresponding to the recording apparatus in the present invention) 1, as described above, the pressurization state (pressurization weakness) of the pressurization mechanisms 10 of all the transport mechanisms 3 installed in one operation is as described above. State, pressure strong state) can be changed, and even if the pressurization state of all the pressurization mechanisms 10 is either the pressurization weak state or the pressurization strong state. In addition, the insertion member (corresponding to the forced separation operation portion in the present invention) can be appropriately selected and moved (operated) to forcibly release the pressure applied to the conveying roller 3a of the pressure roller 40. . In the ink jet printer 1, the pressurizing mechanisms 10 of all the transport mechanisms 3 to be installed can be brought into a pressure release state by one operation.

  In other words, the transport mechanism 3 installed near a portion where no wrinkles occur in the transported recording paper can be kept in a pressurized state (a weak pressure state or a high pressure state). The pressure-sensitive roller 40 can be moved freely by selecting only the conveyance mechanism 3 installed near the portion where wrinkles are generated, and releasing the pressure of the pressure roller 40 toward the conveyance roller 3a. The wrinkles generated near the transport mechanism 3 can be preferably stretched.

  Accordingly, the generated wrinkles can be preferably stretched, and the print recording misalignment caused by the wrinkles can be preferably eliminated. Further, since the pressurization of only a desired portion of the recording paper can be released and moved freely, it is excellent in delicate convenience.

  Further, in the recording apparatus 1 configured as described above, an appropriate recording medium such as a recording medium made of a heatable resin, a cloth having a soft property, or the like, in which wrinkles are remarkably generated. Even if is selected, the generated wrinkles can be preferably stretched, and the misalignment of the print recording caused by the wrinkles can be preferably eliminated. Further, the print recording by the print recording mechanism 4 is also preferably performed.

  In addition, this invention is not limited to the above-mentioned embodiment, In the range which does not deviate from the meaning, it can change suitably.

  For example, when the insertion member 50 is moved to the distal end side (C direction), the contact rounded portion 21e provided on the fixed-side member main body 21 is rounded on the insertion enlarged portion 54 provided on the insertion member 50. When the insertion member 50 is moved to the rear end side (D direction) by abutting against the portion holding surface 54c, the contact of the contact rounded portion 21e with the rounded portion holding surface 54c is released. It was in a pressurized state. However, the present invention is not limited to this example, and when the insertion member is moved to the rear end side, it comes into contact with the protruding contact portion to be in a pressure release state, and the insertion member is moved to the rear end side. It may be configured such that when it is moved, the contact with the protruding contact portion is released and a pressure state is established.

1 is a perspective view of an ink jet printer as an example of a recording apparatus according to the present invention. It is a perspective view of a pressurization mechanism. It is a perspective view of each member which constitutes a fixed side member. It is a perspective view of each member which constitutes a fixed side member. It is a perspective view of each member which constitutes a fixed side member. It is a perspective view of each member which constitutes a fixed side member. It is a perspective view of the rocking | swiveling support member pivotally supported by the stationary side member. It is a perspective view of an insertion member. It is a side view (standby position) of a pressurization mechanism. It is a side view (insertion position) of a pressurization mechanism. It is a lower surface side perspective view (standby position) of the fixed side member to which the insertion member is attached. It is a lower surface side perspective view (insertion position) of the fixed side member to which the insertion member is attached.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Recording device 10 Pressing mechanism 20 Fixed side member 21 Fixed side member main body 21e Contact round part 30 Swing support member 40 Pressure roller 50 Insertion member 54 Insertion expansion part 3a Conveyance roller

Claims (3)

A transport mechanism comprising: a transport roller that transports the recording material in contact with the lower surface of the recording material; and a pressure mechanism that includes a pressure roller that is disposed opposite to the transport roller and contacts the upper surface of the recording material. Because
The pressurizing mechanism includes a fixed side member, a swing support member that is pivotally supported by the fixed side member so that the intermediate portion has an axis parallel to the transport roller, and is parallel to the transport roller. wherein a pressure roller which is rotatably supported in the lower than the upper surface of the rocking support member a distal end portion of the swing support member having an axis, and the other end said one end attached to said stationary member The pressure roller is attached to the rear end portion of the swing support member so as to pull the rear end portion of the swing support member toward the fixed side member and press the pressure roller toward the transport roller. A biasing member for biasing,
The fixed side member is provided with a protruding contact portion that protrudes toward the swing support member on the rear end side from the shaft support portion that supports the swing support member.
An upper surface of the swing support member is disposed between the fixed side member and the swing support member so that the pressure roller can be brought into contact with and released from the transport roller by a position in contact with the protruding contact portion. An insertion member that is arranged so as to be linearly movable in the direction of the front end side or the rear end side while sliding is provided,
The insertion member is formed such that the rear end side of the insertion member protrudes from the tip end side to the fixed side member side, and has a slope from the tip end side to the rear end portion side. A recess that fits the protruding contact portion on the end side, and the concave portion of the insertion member is moved from the distal end side toward the rear end portion side so as to contact the protruding contact portion; And when the fixed side member and the swing support member are inserted between the fixed side member and the rear end portion of the swing support member against the biasing of the biasing member. A conveyance mechanism characterized by forcibly increasing the distance between them and separating the pressure roller from the conveyance roller. A recording apparatus provided with a print recording mechanism for performing print recording such as printing on the recording material,
A plurality of transport mechanisms according to claim 1 are installed in the width direction of the recording material to be transported,
A recording apparatus configured to arbitrarily select any one of a plurality of the transport mechanisms installed and to release the pressure of the pressure roller toward the transport roller. The recording apparatus according to claim 2,
A recording apparatus comprising: a heating unit that heats the recording material before printing and recording by the printing and recording mechanism.

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