JP5858072B2 - Cutter device, recording device - Google Patents

Description

The present invention includes a cutter that cuts a workpiece, a carriage that has the cutter and moves in a width direction with respect to the feed direction of the workpiece, and a guide portion that guides the carriage in the width direction. The present invention relates to a cutter device and a recording device including the cutter device.
In the present application, the recording apparatus includes types such as an ink jet printer, a wire dot printer, a laser printer, a line printer, a copying machine, and a facsimile.

Conventionally, as shown in Patent Document 1, a recording apparatus capable of setting roll paper has a cutting portion as a cutter apparatus. The cutting section has a cutter motor as a drive source, a cutter unit that moves in the width direction of the roll paper, and a guide rail that guides the cutter unit in the width direction. Further, the cutter unit had a cutter for cutting the roll paper.
Therefore, the roll paper can be cut after the user sets the roll paper and before the start of recording and after the end of recording.

JP 2003-260830 A

  However, the cutter blade provided in the cutter unit passes through the same path in the forward path, which is a movement for cutting the roll paper, and in the backward path, which is a movement for returning to the original position. Therefore, in the return path, the cutter blade may come into contact with the already cut roll paper. Then, there is a risk that so-called cut jam may occur, which causes wrinkles or scratches on the already cut roll paper and hinders the movement of the cutter unit. Moreover, there is a possibility that so-called re-cutting occurs when the roll paper that has already been cut by the cutter blade is cut again.

  The present invention has been made in view of such a situation, and an object thereof is to provide a cutter device capable of preventing cut jam and re-cutting and a recording device including the cutter device.

  In order to achieve the above object, a cutter device according to a first aspect of the present invention includes a cutter that cuts a workpiece, a carriage that has the cutter, and moves in a width direction with respect to the feed direction of the workpiece, A guide portion that guides the carriage in the width direction, and when the cutter moves the carriage when the workpiece is cut, the cutter path of the carriage in the return path is the forward path Unlike the path of the cutter, the cutting target that moves in a direction away from the other target in the feed direction first among the target objects divided into two bodies immediately after cutting with respect to the path in the forward path It is constructed on the body side.

  According to the first aspect of the present invention, the cutter path of the carriage in the return path of the cutter device is different from the cutter path in the forward path, and immediately after cutting with respect to the path in the forward path. The cut object is divided into two bodies, and the cut object side moves in a direction away from the other cut object in the feed direction. That is, in the return path, the carriage and the cutter can move along a path that is further away from the object to be cut immediately after being cut, as compared with the path in the forward path. As a result, in the return path, there is no possibility of so-called jam due to the carriage coming into contact with the cut object after cutting. Further, in the return path, there is no possibility that the cutter will cut into the object to be cut again.

According to a second aspect of the present invention, in the first aspect, the cutter includes a first cutter provided on one surface side of the workpiece, and a first cutter provided on the surface opposite to the one surface side of the workpiece. The two cutters cooperate to shear the object to be cut.
According to the 2nd aspect of this invention, in addition to the effect similar to a 1st aspect, the said cutter is the 1st cutter provided in the one surface side of the to-be-cut body, The said one surface side of a to-be-cut body, The second cutter provided on the opposite surface side cooperates to shear the object to be cut.
Here, a configuration in which the first cutter is retracted to the upper surface side as an example of the one surface side and the second cutter is retracted to the lower surface side as an example of the opposite surface side can be considered, but the structure becomes extremely complicated. Moreover, there is a possibility that the relative positional accuracy of the first cutter and the second cutter for shearing cannot be maintained.

Therefore, according to this aspect, the carriage is moved in one direction while maintaining the relative positions of the first cutter and the second cutter, so compared to the respective retracted configuration, It can be easily configured. Furthermore, the relative positional accuracy can be maintained.
That is, the configuration in which the path in the return path is different from the path in the forward path is particularly effective when the cutter shears the object to be cut from one side and the opposite side.

According to a third aspect of the present invention, in the first or second aspect, there is a gap between the carriage and the guide portion, and the cutter is upstream or downstream in the feed direction of the object to be cut depending on a cut characteristic. It is the structure which receives force in one direction of the side.
Here, the “cut characteristic” means that when the cutter cuts the roll paper which is an example of the object to be cut, it acts from the roll paper in a direction (upstream direction and downstream direction of the feeding direction) intersecting the direction in which the cutter advances. It means receiving (power).

  According to the third aspect of the present invention, in addition to the same function and effect as the first or second aspect, there is a gap between the carriage and the guide portion, and the cutter is cut by cutting characteristics. It is the structure which receives force in one direction of the body feed direction upstream or downstream. Therefore, different paths can be configured without adding any new members. That is, the cutter path can be configured to be different in the forward path and the return path using the “cut characteristics”.

In the return path, the cutter can be configured so that the path of the cutter is more reliably different by configuring the carriage so that its own weight acts in the direction opposite to the “cut characteristic”.
Here, it goes without saying that in the forward path, the force due to the “cut characteristic” can be configured to oppose the weight of the carriage.

According to a fourth aspect of the present invention, in the first or second aspect, the guide portion includes a first rail portion that guides the carriage during the forward path, and a first rail portion that guides the carriage during the backward path. 2 rail parts, The said 1st rail part and the said 2nd rail part are comprised by the loop shape, It is characterized by the above-mentioned.
According to the fourth aspect of the present invention, in addition to the same function and effect as the first or second aspect, the guide portion includes a first rail portion that guides the carriage during the forward path, and a return path And a second rail portion that guides the carriage, and the first rail portion and the second rail portion are configured in a loop shape. Therefore, the path of the cutter during the return path can be configured to be more reliably different from the path during the forward path.

According to a fifth aspect of the present invention, in the first or second aspect, there is a gap between the carriage and the guide portion, and the carriage is moved upstream in the feed direction only in one of the forward path and the return path. Or it has an urging means for urging in one direction on the downstream side.
According to the fifth aspect of the present invention, in addition to the same effect as the first or second aspect, there is a gap between the carriage and the guide portion, and only in one of the forward path and the return path, Biasing means for urging the carriage in one direction upstream or downstream in the feed direction is provided. Therefore, a different route can be configured only by adding the urging means.
Here, examples of the urging means include a magnet that generates a magnetic force and a spring that generates an urging force.

According to a sixth aspect of the present invention, in the first or the second aspect, there is a gap between the carriage and the guide portion, and the carriage is arranged on the upstream side or the downstream side in the feed direction in the forward path. And urging means for urging the carriage in the direction opposite to the one direction in the return path.
According to the sixth aspect of the present invention, in addition to the same effect as the first or second aspect, there is a gap between the carriage and the guide portion, and the carriage is fed in the feed direction in the forward path. Urging means for urging the carriage in one direction upstream or downstream and urging the carriage in a direction opposite to the one direction in the return path. Therefore, a different route can be configured only by adding the urging means. Furthermore, since the urging is performed in opposite directions in the forward path and the backward path as compared with the fifth aspect, different paths can be configured more reliably.

According to a seventh aspect of the present invention, in the fifth or sixth aspect, the urging unit includes a magnetic force generation unit that generates a magnetic force, and the position of the carriage in the posture or the feeding direction is displaced. And
According to the seventh aspect of the present invention, in addition to the same effects as the fifth or sixth aspect, the urging means has a magnetic force generating part for generating a magnetic force, and the posture or feed direction of the carriage Displace the position at. Therefore, the magnetic force can be easily switched in the forward path and the return path. Further, since the magnetic force generator may be provided on either the base body side or the carriage side of the cutter device, the degree of freedom in layout increases.

Here, when a spring is provided as the biasing means on the base portion side, it is necessary to bring one end of the spring into contact with the carriage. Accordingly, a new frictional force is generated between the spring and the carriage.
On the other hand, in this aspect, even when the magnetic force generation part is provided on the base part side, it is not necessary to bring the magnetic force generation part into contact with the carriage. Therefore, no new frictional force is generated. As a result, it is effective because there is no possibility of increasing the load of movement of the carriage in the width direction as compared with the case where the spring is provided on the base portion side.

A recording apparatus according to an eighth aspect of the present invention includes a feeding unit that feeds a recording medium, a recording unit that performs recording on the recording medium fed from the feeding unit by a recording head, and a recording unit. And a cutting unit that cuts the recording medium, wherein the cutting unit includes the cutter device according to any one of the first to seventh aspects.
According to an eighth aspect of the present invention, the cutting section includes the cutter device according to any one of the first to seventh aspects. Therefore, in the recording apparatus, it is possible to obtain the same operational effects as in any one of the first to seventh aspects.

1 is an external perspective view of a printer according to the present invention. The schematic perspective view which shows the cutting part which concerns on this invention. The schematic side view which shows the cutting part which concerns on this invention. The front view which shows the cutter unit which concerns on this invention. The side view which shows the cutter unit which concerns on this invention. (A) (B) is a figure which shows a slider part and a guide rail. (A) (B) is a figure which shows the positional relationship of a cutter tooth. (A) (B) is a figure which shows the principle which cut characteristics produce. The front view which shows the position of the cutter unit at the time of a shearing start. The front view which shows the position of the cutter unit in shearing (outward path). The front view which shows the position and attitude | position of the cutter unit in a return path. The side view which shows the position and attitude | position of the cutter unit of the state of FIG. The perspective view which shows the cutting part of other Embodiment 1. FIG. The top view which shows the cutting part of other Embodiment 1 (outward path). The sectional side view which shows the position and attitude | position of the cutter unit of the state of FIG. The top view which shows the cutting part of other Embodiment 1 (during switching). The top view which shows the cutting part of other Embodiment 1 (just after switching). FIG. 18 is a side sectional view showing the position / posture of the cutter unit in the state of FIG. 17. The top view (return path) which shows the cutting part of other Embodiments 1. (A) (B) is a figure (outward path) which shows the cutting part of other Embodiment 2. FIG. (A) (B) is a figure (return way) which shows the cutting part of other Embodiment 2. FIG. (A) (B) is a figure (outward path) which shows the cutting part of other Embodiment 3. FIG. (A) (B) is a figure (return path) which shows the cutting part of other Embodiment 3. FIG. (A) (B) is a figure (outward path) which shows the cutting part of other Embodiment 4. FIG. (A) (B) is a figure (return way) which shows the cutting part of other Embodiment 4. FIGS.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an external perspective view of an ink jet printer (hereinafter referred to as “printer”) 1 as an example of a “recording apparatus” or “liquid ejecting apparatus” according to the present invention.
Here, the liquid ejecting apparatus refers to an ink jet recording apparatus, a copying machine, a facsimile, or the like that performs recording on a recording material by ejecting ink from a recording head as a liquid ejecting head to a recording material such as recording paper. In addition to the recording apparatus, instead of ink, a liquid corresponding to a specific application is ejected from the liquid ejecting head corresponding to the recording head to the ejected material corresponding to the recording material, and the liquid is ejected to the ejected material. Used to include the device to be attached.

  Further, as the liquid ejecting head, in addition to the recording head described above, a color material ejecting head used for manufacturing a color filter such as a liquid crystal display, an electrode material used for forming an electrode such as an organic EL display or a surface emitting display (FED). (Conductive paste) A jet head, a bio-organic matter jet head used for biochip manufacturing, a sample jet head for jetting a sample as a precision pipette, and the like.

The printer 1 is a large-sized printer capable of recording up to a recording medium having a relatively large width, such as a JIS standard A0 size or B0 size, or a roll paper P as a recording medium. And a main body unit 2 including a recording execution unit 4 and a paper discharge receiving unit 5.
The main body 2 is provided on an upper portion of a support column 8 erected on the base 9 and has a discharge port 6 for discharging the recorded roll paper P obliquely downward. An opening 7 of the stacker 10 is located below the discharge port 6, and the recorded roll paper P is discharged from the discharge port 6 toward the opening 7 and received by the stacker 10.

  The roll paper supply unit 3 is configured to be capable of storing a roll paper roll (hereinafter referred to as “roll”) R, and the roll paper P is fed out from the roll R and supplied obliquely downward to the recording execution unit 4 that executes recording. Is done. Then, the roll R is set in a roll paper holder (not shown). When supplying roll paper, the roll paper holder is rotated by a spindle motor (not shown) as roll driving means, whereby the roll paper P is supplied downstream.

  The recording execution unit 4 is disposed opposite to the recording head 12 and a recording head 12 (see FIG. 2 and FIG. 3) as a liquid ejecting unit or a recording unit that ejects (injects) ink as a liquid onto the roll paper P. Platen 11 (see FIGS. 2 and 3), a conveyance drive roller (conveyance roller) (not shown) that is provided on the upstream side of the recording head 12 and conveys the roll paper P to the downstream side, and is in pressure contact therewith And a conveyance driven roller (not shown) that rotates in a driven manner.

The recording head 12 is provided on a carriage (not shown), and the carriage has a guide shaft (not shown) extending in the scanning direction (main scanning direction) of the recording head 12 and a guide plate (not shown) extending in the main scanning direction. (Not shown), while being guided by a motor (not shown), moves in the main scanning direction.
An air suction unit 13 (see FIGS. 2 and 3) as a sheet suction unit is provided on the downstream side of the recording head 12, and the air suction unit 13 (see FIGS. 2 and 3) is used for the recording head 12. The roll paper P is placed in a regulated state so that it does not float on the downstream side, so that deterioration in recording quality due to the roll paper P rising is prevented.

FIG. 2 is a schematic perspective view showing a cutting portion according to the present invention. FIG. 3 is a schematic side view showing a cutting portion according to the present invention.
As shown in FIGS. 2 and 3, the recording execution unit 4 of the printer 1 is provided with a platen 11. An air suction unit 13 and a cutting unit 20 that cuts the roll paper P are provided on the downstream side of the platen 11 in the feeding direction.

  The cutting unit 20 includes a base body 21, a cutter motor 22, a guide rail 25, a cutter unit 30, and a torsion coil spring 40 that is an example of an urging unit. Among these, the cutter motor 22 is provided so that power can be transmitted to the cutter unit 30 via a belt 23 (see FIG. 5) wound around a pulley 24 (see FIG. 5). The guide rail 25 is configured to guide the cutter unit 30 in the width direction X of the roll paper P.

Furthermore, the cutter unit 30 has a first cutter 37 and a second cutter 38 (see FIGS. 4, 5, 7, and 8), as will be described later, so that the roll paper P can be sheared. Is provided. Further, the torsion coil spring 40 is fixed to the base portion 21 on the first digit side in the width direction X (the right side in FIG. 2), and the cutter unit 30 when located on the first digit side is moved upstream in the feeding direction. It is provided to be energized.
In this embodiment, the cutter unit 30 is provided to shear the roll paper P while moving from the 1st digit side to the 80th digit side.

FIG. 4 is a front view showing a cutter unit according to the present invention. FIG. 5 is a side view of FIG.
As shown in FIGS. 4 and 5, the cutter unit 30 includes a slider portion 31 and a cutter carriage 32. Among these, the slider part 31 is provided so that the inside of the guide rail 25 may slide. The cutter carriage 32 holds the first cutter 37 and the second cutter 38 and is configured integrally with the slider portion 31.

  Here, the first cutter 37 and the second cutter 38 are provided so as to shear the roll paper P in cooperation. Specifically, the first cutter 37 is provided on the recording surface (front surface) side of the roll paper P and on the upstream side in the feeding direction from the second cutter 38. On the other hand, the second cutter 38 is provided on the opposite surface (back surface) side to the recording surface of the roll paper P and on the downstream side in the feeding direction from the first cutter 37.

Further, on the upstream side in the feeding direction of the cutter unit 30, a first inclined portion 33 and a second inclined portion 34 that guide the sheared upstream roll paper P are provided. Here, the second inclined portion 34 is formed so as to be inclined so that the one digit side which is the right side in FIG. 4 slightly falls with respect to the width direction X.
On the other hand, on the downstream side of the cutter unit 30 in the feeding direction, a third inclined portion 35 and a fourth inclined portion 36 that guide the sheared downstream roll paper P are provided. Here, the third inclined portion 35 and the fourth inclined portion 36 are formed so as to be inclined so that the one-digit side, which is the right side in FIG.

  The inclination directions of the first inclined part 33 to the fourth inclined part 36 are determined by the phases of the first cutter 37 and the second cutter 38. More specifically, when the roll paper P is sheared, the sheared upstream roll paper P is pressed downward (in the direction from the front surface to the back surface of the roll paper P) by the first cutter 37. Therefore, the first inclined portion 33 and the second inclined portion 34 can guide the upstream-side roll paper P that has been sheared according to the pressed direction.

  On the other hand, when the roll paper P is sheared, the sheared downstream roll paper P is pressed upward (in the direction from the back surface to the front surface of the roll paper P) by the second cutter 38. Therefore, the third inclined portion 35 and the fourth inclined portion 36 can guide the downstream side roll paper P sheared in accordance with the pressed direction. Here, the third inclined portion 35 is inclined to such an extent that the surface of the recorded roll paper P does not contact the third inclined portion 35. That is, the fourth inclined portion 36 is inclined to such an extent that the back surface of the recorded roll paper P comes into contact with the fourth inclined portion 36.

Further, the torsion coil spring 40 biases the side of the cutter carriage 32 where the first cutter 37 and the second cutter 38 are provided with reference to the position where the slider portion 31 and the guide rail 25 abut. Is provided.
Furthermore, the first cutter 37 is configured to be driven and rotated by movement of the cutter unit 30 in the width direction X.

  Specifically, when the slider portion 31 slides, a roller (not shown) provided on the slider portion 31 rotates due to friction with the guide rail 25. The power of the rotating roller is configured to be transmitted to the first cutter 37. At this time, the first cutter 37 rotates in the direction in which the roll paper P is wound (clockwise in FIG. 4). Therefore, the roll paper P can be sheared more reliably. In other words, there is almost no possibility that the cutter unit 30 exerts a force in the width direction X on the roll paper P.

FIGS. 6A and 6B are views showing the slider portion and the guide rail. Among these, FIG. 6 (A) is a front view. On the other hand, FIG. 6B is a side sectional view.
The illustration of the cutter carriage is omitted for easy understanding of the configuration.
As shown in FIGS. 6A and 6B, the slider portion 31 is configured to slide inside the guide rail 25.

Here, in order for the slider portion 31 to slide inside the guide rail 25, a so-called rattling that is a slight gap is required between the slider portion 31 and the guide rail 25. This is because if there is no such play, the sliding load increases significantly, and there is a possibility that the sliding cannot be performed.
Therefore, the posture of the slider portion 31 can be displaced relative to the guide rail 25 by the amount of play. As a result, the posture of the entire cutter unit 30 can be displaced with respect to the guide rail 25. That is, the positions of the first cutter 37 and the second cutter 38 can be displaced in the feeding direction Y.

FIGS. 7A and 7B show the positional relationship of the cutter teeth. Among these, FIG. 7A is a front view seen from the downstream side in the feeding direction. On the other hand, FIG. 7B is a side view seen from the 80th digit side in the width direction.
Further, FIGS. 8A and 8B are diagrams showing the principle of generating cut characteristics. Among these, FIG. 8A is a plan view seen from the surface side of the upper roll paper. On the other hand, FIG. 8B is a side view seen from the 80th digit side in the width direction.

As shown in FIGS. 7A and 7B and FIGS. 8A and 8B, the blade tip of the first cutter 37 is provided with a first inclined surface 37a.
Here, the first inclined surface 37 a is inclined with respect to the posture of the first cutter 37.
Similarly, a second inclined surface 38 a is provided at the cutting edge of the second cutter 38. The second inclined surface 38 a is inclined with respect to the attitude of the second cutter 38.

Furthermore, as shown in FIG. 8A, the posture of the first cutter 37 is parallel to the width direction X. On the other hand, the posture of the second cutter 38 is inclined with respect to the width direction X by an angle θ. Specifically, an angle is set so that the 80-digit side (the left side in FIG. 8A), which is the front end side in the traveling direction of the second cutter 38, approaches the first cutter 37 in the feeding direction Y from the single-digit side. It is tilted by θ.
In the present application, the angle θ is referred to as “shear angle”.

Therefore, when the cutter unit 30 moves to the 80-digit side (in the direction of the black arrow in FIG. 8A) and shears the roll paper P, the first inclined surface 37a of the first cutter 37 feeds downstream in the feeding direction. The force to advance toward the upstream side in the feeding direction by the second inclined surface 38a of the second cutter 38 is greater than the force to advance.
As a result, during shearing, a force acts so that the positions of the first cutter 37 and the second cutter 38 of the cutter unit 30 are displaced upstream in the feeding direction (in the direction of the white arrow in FIG. 8A). . This action is an example of the principle of cut characteristics.

  As shown in FIG. 8B, when shearing, the first inclined surface 37a of the first cutter 37 receives a force F1 from the leading end of the sheared upstream roll paper P. Similarly, the second inclined surface 38a of the second cutter 38 receives a force F2 from the rear end of the sheared downstream roll paper P. That is, a force acts to rotate the cutter unit 30 as indicated by the arrow F3. Furthermore, in other words, during shearing, the posture of the cutter unit 30 acts so as to be displaced with the contact portion between the slider portion 31 and the guide rail 25 as a fulcrum.

As a result, during shearing, a force acts so that the positions of the first cutter 37 and the second cutter 38 of the cutter unit 30 are displaced upstream in the feeding direction. This action is an example of the principle of cut characteristics.
In the present embodiment, the first cutter 37 and the second cutter 38 are round blades, so-called roller cutters, but are not limited thereto. In the present embodiment, the roll paper P is sheared by two cutters, but is not limited thereto.

FIG. 9 is a front view showing the position of the cutter unit at the start of shearing.
As shown in FIG. 9, the cutter unit 30 is located on the first digit side in the width direction X.
Here, a force acts on the cutter unit 30 so that the positions of the first cutter 37 and the second cutter 38 are displaced to the downstream side in the feeding direction (the lower side in FIG. 9) in the range of play described above due to their own weight. .

On the other hand, during shearing, a force acts so that the positions of the first cutter 37 and the second cutter 38 of the cutter unit 30 are displaced upstream in the feeding direction due to the above-described cutting characteristics due to the “shear angle” or the like.
That is, the positions of the first cutter 37 and the second cutter 38 may be displaced before and after the start of shearing.

Therefore, the cutting unit 20 of the present embodiment has a torsion coil spring 40 that is an example of an urging unit. Specifically, when at least the first cutter 37 and the second cutter 38 start to cut the roll paper P, the cutter carriage 32 is moved to the same side as the direction in which the force acts due to the cutting characteristics due to the “shear angle” or the like. It is configured to be energized.
Therefore, the torsion coil spring 40 can displace the positions of the first cutter 37 and the second cutter 38 upstream in the feeding direction (upper side in FIG. 9) in the range of the above-mentioned play against the dead weight. it can. That is, the upstream side in the feeding direction, where the position of the first cutter 37 and the second cutter 38 is the same side as the direction in which the force acts due to the cut characteristics due to the “shear angle” or the like in the range of play described above at the start of shearing. Can be located.
Then, before starting recording or after finishing recording, shearing is started.

FIG. 10 is a front view showing the position of the cutter unit during shearing (outward path).
As shown in FIG. 10, when the cutter unit 30 further moves to the 80-digit side from the state shown in FIG.
Here, when the shearing is started, that is, when the first cutter 37 and the second cutter 38 start shearing the roll paper P and start receiving the force due to the cut characteristic due to the “shear angle” or the like, the cutter unit 30 is It is configured to be separated from the torsion coil spring 40.

Therefore, it is not necessary to consider the friction load generated between the torsion coil spring 40 and the cutter unit 30 during shearing. That is, there is no possibility that the urging force of the torsion coil spring 40 hinders shearing by the cutter unit 30.
During shearing, the positions of the first cutter 37 and the second cutter 38 of the cutter unit 30 are displaced to the upstream side in the feeding direction within the range of the backlash due to the cutting characteristics due to the “shear angle” and the like described above. It remains.
Then, it reaches the 80-digit end P2 (see FIG. 11) of the roll paper P, and the shearing is completed. Thereafter, the cutter unit 30 returns to the original position on the one digit side.

FIG. 11 is a front view showing the position / posture of the cutter unit in the return path. FIG. 12 is a side view showing the position / posture of the cutter unit in the state shown in FIG.
As shown in FIG. 11, the front end of the sheared upstream roll paper P is straightened by the biasing force of the torsion coil spring 40, which is an example of the biasing means. Specifically, the cut start side end portion P1 and the opposite side end portion P2 of the roll paper P are substantially in the same position in the feeding direction Y.
Although the torsion coil spring 40 is used as an example of the urging means, the present invention is not limited to this. A configuration of biasing by a leaf spring or a configuration of biasing by a magnetic force of a magnet may be used. Further, the torsion coil spring 40 is configured to be separated from the cutter unit 30 after the start of shearing, but may continue to be urged.

Further, as shown in FIGS. 11 and 12, when the cutter unit 30 reaches the 80-digit end P2 and finishes shearing the roll paper, the action due to the cut characteristics disappears.
Here, a force acts on the cutter unit 30 so that the positions of the first cutter 37 and the second cutter 38 are displaced to the downstream side in the feeding direction (lower side in FIG. 11) in the range of play described above due to their own weight. .

  Accordingly, the posture of the cutter unit 30 is tilted clockwise in FIG. 12 with a point where the slider portion 31 and the guide rail 25 abut as a fulcrum. As a result, the positions of the first cutter 37 and the second cutter 38 are displaced in the direction away from the downstream end of the upstream roll paper P3, that is, downstream in the feeding direction. In this state, the cutter unit 30 moves to the first digit side, so that there is no possibility that the first cutter 37 and the second cutter 38 come into contact with the upstream roll paper P3 in the return path. That is, it is possible to prevent so-called recutting in which the first cutter 37 and the second cutter 38 cut the upstream roll paper P3 in the return path.

When the cutter unit 30 reaches the 80-digit end P2 and shears the roll paper P, the downstream roll paper P4 moves to the downstream side in the feeding direction by its own weight and is discharged.
Further, when the cutter unit 30 returns to the first digit side, it is guided by the inclined portion provided at the tip of the torsion coil spring 40 and receives the urging force of the torsion coil spring 40 shown in FIGS. It becomes.

As described above, the path of the first cutter 37 and the second cutter 38 in the forward path to be sheared using the force of the “cut characteristic”, and the path of the first cutter 37 and the second cutter 38 in the return path to return. Are configured differently.
Here, by configuring the direction of the dead weight acting on the cutter unit 30 in the direction opposite to the direction in which the “cut characteristic” acts, the forward path and the backward path can be configured more reliably.

In addition, the torsion coil spring 40 is provided on the one-digit side in order to make the shear surface of the roll paper P straighter. Even when the torsion coil spring 40 is not provided, the forward path and the return path are provided. And can be configured differently.
Further, in the above embodiment, after the roll paper P is sheared, the roll paper P4 on the downstream side in the feeding direction is moved downstream in the feeding direction, which is a direction away from the upstream roll paper P3 after shearing. Not limited to.

  In other words, after the roll paper P is sheared, the upstream roll paper P3 in the feed direction may be moved upstream in the feed direction, which is a direction away from the downstream roll paper P4 after shearing. In such a case, it goes without saying that the path of the first cutter 37 and the second cutter 38 in the return path is configured upstream of the path of the first cutter 37 and the second cutter 38 in the forward path to be sheared.

  The cutting unit 20 as the cutter device of the present embodiment includes a cutter (37, 38) that cuts the roll paper P, which is an example of an object to be cut, and a cutter (37, 38). A cutter unit 30 that is a carriage that moves in the width direction X with respect to the feeding direction Y, and a guide rail 25 that is a guide portion that guides the cutter unit 30 in the width direction X, and includes cutters (37, 38). When the movement of the cutter unit 30 when cutting the roll paper P is the forward path, the path of the cutter (37, 38) of the cutter unit 30 in the backward path is different from the path of the cutter (37, 38) in the forward path. The upstream side roll paper P after shearing the other in the feeding direction Y among the roll papers P3 and P4 divided into two bodies immediately after cutting with respect to the path in the forward path Characterized in that it is configured on the downstream side roll paper P4 side after shear movement in a direction away from.

In the present embodiment, the cutters (37, 38) include a first cutter 37 provided on one side of the roll paper P and a second cutter 38 provided on the opposite side of the one side of the roll paper P. Are configured to shear the roll paper P in cooperation with each other.
Furthermore, in this embodiment, there is a gap between the slider portion 31 of the cutter unit 30 and the guide rail 25, and the cutters (37, 38) feed the roll paper P according to the “cut characteristics” described above. It is the structure which receives force in one direction of the direction upstream or downstream.

[Other embodiment 1]
FIG. 13 is a perspective view showing the 80-digit side of the cutting part of the other embodiment 1.
As shown in FIG. 13, the cutting unit 50 according to the other embodiment 1 includes a cutter unit 56, a guide shaft 53, and a cutter rail 54. Among these, the cutter unit 56 includes the cutter carriage 32 and the slider portion 51.
Here, since the cutter carriage and the like are the same as those in the above-described embodiment, the same reference numerals are used and the description thereof is omitted.

The slider portion 51 has an engaging portion 52 that engages with the cutter rail 54. Further, a cylindrical guide shaft 53 extending in the width direction X of the roll paper P is inserted through the slider portion 51.
The cutter rail 54 includes a first rail 55 extending in the width direction X, a second rail 57 provided in parallel with the first rail 55, and the first rail 55 and the second rail 57. And a movable wall 58 provided.

  Among these, the first rail 55 is provided so as to guide the engaging portion 52 when the cutter unit 56 moves from the 1st digit side to the 80th digit side, that is, when the roll paper P is sheared. The second rail 57 is provided to guide the engaging portion 52 when the cutter unit 56 returns from the 80-digit side to the 1-digit side, that is, when the roll paper P is sheared and returned.

Furthermore, the movable wall 58 is provided so as to be swingable about the shaft portions 59, 59, and is separated from the first rail 55 and the second rail 57 by a biasing spring (not shown), that is, in a closed state. It is energized to become.
In addition, the movable part is provided on the 80-digit side and the 1-digit side. In other words, the structure of the cutter rail 54 on the 80-digit side shown in FIG. 13 is similarly provided on the single-digit side in a point-symmetric manner.
Hereinafter, the operation of the cutting unit 50 will be described.

FIG. 14 is a plan view showing a cutter unit in the forward path of another embodiment 1. FIG. 15 is a side sectional view showing the position / posture of the cutter unit in the state shown in FIG.
As shown in FIGS. 14 and 15, in the forward path of shearing the roll paper P, the engaging portion 52 of the slider portion 51 slides to the 80th digit side while being guided by the first rail 55 of the cutter rail 54. Then, after the end of shearing, the engaging portion 52 comes into contact with an inclined portion 55a formed at the end of the 80-digit side of the first rail 55.

FIG. 16 is a plan view showing the rails of the engaging portion according to another embodiment 1 being switched.
As shown in FIG. 16, when the cutter unit 56 further moves to the 80 digit side from the state of FIGS. 14 and 15, the engaging portion 52 is guided to the movable wall side by the inclined portion 55a. That is, the inclined portion 55a converts a part of the force that the cutter unit 56 moves to the 80th digit side into the force that the engaging portion 52 moves to the downstream side in the feeding direction. Therefore, the engaging portion 52 can open the movable wall 58 against the biasing force of a biasing spring (not shown). That is, the state where the first rail 55 and the second rail 57 are partitioned can be expanded and released.

FIG. 17 is a plan view showing a state immediately after the rail switching of the engaging portion of the other embodiment 1. FIG. 18 is a side sectional view showing the position / posture of the cutter unit in the state shown in FIG.
As shown in FIGS. 17 and 18, when the cutter unit 56 further moves to the 80 digit side from the state of FIG. 16, the engaging portion 52 is guided to the second rail 57 by the inclined portion 55a.

At this time, the posture of the cutter unit 56 is displaced clockwise in FIG. 18 with the guide shaft 53 as a fulcrum. Accordingly, the positions of the first cutter 37 and the second cutter 38 move downstream in the feeding direction. That is, the sheared upstream roll paper P3 moves in a direction away from the downstream end.
Note that when the engaging portion 52 is completely moved to the second rail 57, the engaging portion 52 is separated from the movable wall 58. Therefore, the movable wall 58 is closed again by a biasing force of a biasing spring (not shown).

FIG. 19 is a plan view showing a cutter unit in the return path of another embodiment 1. FIG.
As shown in FIG. 19, when the cutter unit 56 moves from the 80th digit side to the first digit side, the engaging portion 52 passes through the movable wall 58 while being guided by the second rail 57. Accordingly, the posture of the cutter unit 56 moves while maintaining the state shown in FIG. As described above, the movable wall 58 is provided on the first digit side in point symmetry with the 80th digit side. That is, the first rail 55 and the second rail 57 are configured in a loop shape. Accordingly, when the engaging portion 52 reaches the end portion of the second rail 57 on the first digit side, it is guided to the first rail 55 by an inclined portion (not shown). As a result, the posture of the cutter unit 56 can return to the state shown in FIG.

As described above, by providing the first rail 55 and the second rail 57, the path of the first cutter 37 and the second cutter 38 in the forward path to be sheared, and the first cutter 37 and the second cutter in the return path to be returned The 38 routes can be configured differently. As a result, it is possible to prevent so-called recutting in which the first cutter 37 and the second cutter 38 cut the upstream roll paper P3 in the return path.
This embodiment is effective when the feeding direction Y is substantially horizontal. Further, it is effective when the cutter does not have an effect of cutting characteristics and when the effect is minute.

  In the cutting unit 50 as the cutter device of the other embodiment 1, the cutter rail 54 as one of the guide shaft 53 and the cutter rail 54 as the guide unit is a first rail that guides the cutter unit 56 during the forward path. A first rail 55 that is a portion and a second rail 57 that is a second rail portion that guides the cutter unit 56 during the return path, and the first rail 55 and the second rail 57 are configured in a loop shape. It is characterized by being.

[Other embodiment 2]
20A and 20B are schematic views showing a cutter unit in the forward path of another embodiment 2. FIG. Among these, FIG. 20 (A) is a schematic plan view. On the other hand, FIG. 20B is a schematic side view.
As shown in FIGS. 20A and 20B, the cutting unit 60 according to the second embodiment includes convex pieces 62 provided on the cutter carriage 61 and biasing means provided on the base unit side of the cutting unit 60. It has the 1st leaf | plate spring 63 which is an example. As will be described later, the first leaf spring 63 has a first inclined surface portion 64 on one digit side.
Since other members are the same as those in the above-described embodiment, the same reference numerals are used and the description thereof is omitted.

In the forward path of the cutter unit 30, the first leaf spring 63 is provided so as to bias the convex piece 62 upstream in the feeding direction (biasing force F <b> 4).
Here, the first leaf spring 63 extends in the width direction X. Accordingly, the cutter unit 30 can maintain the posture shown in FIG. 20B in a range facing the roll paper P in the forward path.

FIGS. 21A and 21B are schematic views showing a cutter unit in the return path of another embodiment 2. FIG. Of these, FIG. 21A is a schematic plan view. On the other hand, FIG. 21 (B) is a schematic side view.
As shown in FIGS. 21A and 21B, immediately after the cutter unit 30 shears the roll paper P and immediately before reaching the end of the 80-digit side in the movement range of the cutter unit 30 in the width direction, Separated from the leaf spring 63. That is, the cutter unit 30 does not receive the urging force F4 from the first leaf spring 63.
Here, in the cutter unit 30, the positions of the first cutter 37 and the second cutter 38 are displaced to the downstream side in the feeding direction in the range of play generated between the slider portion 31 and the guide rail 25 described above due to its own weight. The force acts on.

  Therefore, the posture of the cutter unit 30 is displaced so that the convex piece 62 is on the downstream side in the feeding direction with respect to the first plate spring 63 at the end of the 80-digit side in the width direction movement range of the cutter unit 30. Then, the cutter unit 30 moves from the 80th digit side to the first digit side while maintaining the posture. Further, immediately before reaching the one-digit side end of the cutter unit 30 in the width direction movement range, the convex piece 62 pushes up the first inclined surface portion 64 of the first leaf spring 63 and passes therethrough. And when it becomes a forward path again, the convex piece 62 is guided so that it may go up the 1st inclined surface part 64, and receives the urging | biasing force F4 of the 1st leaf | plate spring 63 like the state shown to FIG. 20 (A) (B). be able to.

  As described above, by using the biasing force F4 of the first leaf spring 63, the path of the first cutter 37 and the second cutter 38 in the forward path to be sheared, and the first cutter 37 and the second cutter 38 in the return path to return. It is possible to configure so that the route is different. As a result, it is possible to prevent so-called recutting in which the first cutter 37 and the second cutter 38 cut the upstream roll paper P3 in the return path.

Here, by configuring the direction of its own weight acting on the cutter unit 30 in the direction opposite to the direction in which the urging force F4 of the first leaf spring 63 acts, the forward path and the backward path can be configured more reliably. it can.
In the cutting unit 60 as the cutter device of the second embodiment, there is a gap between the slider unit 31 of the cutter unit 30 and the guide rail 25, and the cutter unit 30 is fed only in one of the forward path and the return path. It has the 1st leaf | plate spring 63 which is an example of the urging | biasing means urged | biased to the one direction of the upstream of the direction Y or a downstream.

[Other embodiment 3]
22A and 22B are schematic views showing a cutter unit in the forward path of another embodiment 3. FIG. Among these, FIG. 22 (A) is a schematic plan view. On the other hand, FIG. 22B is a schematic side view.
As shown in FIGS. 22A and 22B, the cutting part 70 of the other embodiment 3 is a convex piece 62, a first leaf spring 63, and a biasing means provided on the base part side of the cutting part 70. It has the 2nd leaf | plate spring 71 which is an example. The 2nd leaf | plate spring 71 has the 2nd inclined surface part 72 in the 80-digit side so that it may mention later.
Since other members are the same as those in the above-described embodiment, the same reference numerals are used and the description thereof is omitted.

In the forward path of the cutter unit 30, the first leaf spring 63 is provided so as to bias the convex piece 62 upstream in the feeding direction (biasing force F <b> 4).
Here, the first leaf spring 63 extends in the width direction X. Therefore, the cutter unit 30 can maintain the posture shown in FIG. 22B in a range facing the roll paper P in the forward path.

FIGS. 23A and 23B are schematic views showing a cutter unit in the return path of another embodiment 3. FIG. Among these, FIG. 23 (A) is a schematic plan view. On the other hand, FIG. 23 (B) is a schematic side view.
As shown in FIGS. 23A and 23B, immediately after the cutter unit 30 shears the roll paper P, immediately before reaching the end of the 80-digit side in the movement range of the cutter unit 30 in the width direction, The second inclined surface portion 72 of the leaf spring 71 is pushed up and passed.

  Then, when the cutter unit 30 starts to move from the 80th digit side to the first digit side, the convex piece 62 is guided to go up the second inclined surface portion 72, as shown in FIGS. 23 (A) and 23 (B). The urging force F5 of the second leaf spring 71 is received. Accordingly, in the vicinity of the end portion on the 80-digit side, the posture of the cutter unit 30 is displaced so that the convex piece 62 is on the downstream side in the feeding direction from the second leaf spring 71. Then, the cutter unit 30 moves from the 80th digit side to the first digit side while maintaining the posture.

Further, when the cutter unit 30 returns to the one-digit side end portion in the width direction movement range, the convex piece 62 has the first inclined surface portion 64 of the first leaf spring 63 immediately before reaching the one-digit side end portion. Push up and pass. And when it becomes a forward path again, the convex piece 62 is guided so that it may go up the 1st inclined surface part 64, and receives the urging | biasing force F4 of the 1st leaf | plate spring 63 like the state shown to FIG. 22 (A) (B). be able to.
In addition, in the said Example, although the 1st leaf | plate spring 63 and the 2nd leaf | plate spring 71 were provided in the different body, of course, it may be integrated.

As described above, using the biasing forces (F4, F5) of the first plate spring 63 and the second plate spring 71, the path of the first cutter 37 and the second cutter 38 in the forward path to be sheared, and the return path to return The paths of the first cutter 37 and the second cutter 38 in FIG. As a result, it is possible to prevent so-called recutting in which the first cutter 37 and the second cutter 38 cut the upstream roll paper P3 in the return path.
This embodiment is effective when the feeding direction Y is substantially horizontal. Further, it is effective when the cutter does not have an effect of cutting characteristics and when the effect is minute.

  In the cutting part 70 as the cutter device of the other embodiment 3, there is a gap between the slider part 31 of the cutter unit 30 and the guide rail 25, and the cutter unit 30 is located upstream in the feeding direction Y in the forward path. Or it has the 1st leaf | plate spring 63 and the 2nd leaf | plate spring 71 which are an example of the urging | biasing means which urges | biass in the downstream one direction, and urges | biases the cutter unit 30 to the said reverse direction in the said return path. It is characterized by.

[Other embodiment 4]
FIGS. 24A and 24B are schematic views showing a cutter unit in the forward path of another embodiment 4. FIG. Among these, FIG. 24 (A) is a schematic plan view. On the other hand, FIG. 24B is a schematic side view.
As shown in FIGS. 24A and 24B, the cutting unit 80 of the other embodiment 4 is an example of a magnet 82 provided on the cutter carriage 81 and an urging means provided on the base part side of the cutting unit 80. And an electromagnetic coil unit 84 as a magnetic force generating unit and a control unit 83 that controls the electromagnetic coil unit 84.

The magnet 82 is arranged so that the upstream side in the feeding direction is an N pole and the downstream side is an S pole. In the forward path, the control unit 83 is provided so as to control the electromagnetic coil unit 84 so that the upstream side in the feeding direction is the N pole and the downstream side is the S pole. Therefore, the attractive force F <b> 6 is generated between the electromagnetic coil portion 84 and the magnet 82.
Here, the electromagnetic coil portion 84 is provided to extend in a range facing the roll paper P. Accordingly, the attractive force F6 always acts on the cutter unit 30 during the forward path. Specifically, since the electromagnetic coil portion 84 is fixed, a force F6 that pulls the cutter unit 30 acts. As a result, the cutter unit 30 can maintain the posture shown in FIG.

FIGS. 25A and 25B are schematic views showing a cutter unit in the return path of another embodiment 4. FIG. Among these, FIG. 25 (A) is a schematic plan view. On the other hand, FIG. 25 (B) is a schematic side view.
As shown in FIGS. 25 (A) and 25 (B), when the cutter unit 30 has sheared the roll paper P and reaches the end of the 80-digit side in the movement range of the cutter unit 30 in the width direction, the control unit 83 The direction of the magnetic force 84 is switched to the opposite direction. That is, switching is performed so that the upstream side in the feeding direction is the S pole and the downstream side is the N pole. Accordingly, a repulsive force F7 is generated between the electromagnetic coil portion 84 and the magnet 82.

Therefore, the posture of the cutter unit 30 is displaced so that the magnet 82 moves downstream in the feeding direction at the end of the 80-digit side in the movement range of the cutter unit 30 in the width direction. Then, the cutter unit 30 moves from the 80th digit side to the first digit side while maintaining the posture. When moving further and going forward again, the control unit 83 switches the direction of the magnetic force of the electromagnetic coil unit 84 again. Therefore, the attractive force F6 can be applied.
In the above-described embodiment, the electromagnetic coil portion 84 is provided on one of the upstream and downstream sides of the magnet 82 in the feeding direction, but it goes without saying that it may be provided on both sides. In such a case, it is not necessary to switch the direction of the magnetic force, and only ON-OFF switching is required. Furthermore, it can replace with the magnet 82 and can also be made into a metal piece.

As described above, using the magnetic force (F6, F7), the path of the first cutter 37 and the second cutter 38 in the forward path to be sheared, and the path of the first cutter 37 and the second cutter 38 in the return path to be returned Can be configured differently. As a result, it is possible to prevent so-called recutting in which the first cutter 37 and the second cutter 38 cut the upstream roll paper P3 in the return path.
This embodiment is effective when the feeding direction Y is substantially horizontal. Further, it is effective when the cutter does not have an effect of cutting characteristics and when the effect is minute.

In the cutting unit 80 as the cutter device of the other embodiment 4, the cutter unit 30 is urged in one direction upstream or downstream in the feeding direction Y in the forward path, and the cutter unit 30 is The urging means for urging in the direction opposite to the one direction has an electromagnetic coil portion 84 that is an example of a magnetic force generating portion that generates magnetic force, and displaces the posture of the cutter unit 30 or the position in the feeding direction Y. It is characterized by.
A printer 1 as a recording apparatus according to an embodiment of the present application includes a roll paper supply unit 3 as a supply unit that supplies roll paper P, which is an example of a recording medium, and roll paper supplied from the roll paper supply unit 3. The recording execution unit 4 as a recording unit that performs recording on the recording head 12 by P and the cutting units 20, 50, 60, 70, and 80 that cut the recorded roll paper P are provided. To do.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.

  DESCRIPTION OF SYMBOLS 1 Inkjet printer, 2 main-body part, 3 roll paper supply part, 4 recording execution part, 5 discharge receiving part, 6 (roll paper) discharge port, 7 opening part, 8 support | pillar, 9 base, 10 (roll paper) Stacker, 11 Platen, 12 Recording head, 13 Air suction means, 20 Cutting part, 21 Base part, 22 Cutter motor, 23 Belt, 24 Pulley, 25 Guide rail, 30 Cutter unit, 31 Slider part, 32 Cutter carriage, 33 1st inclined part, 34 2nd inclined part, 35 3rd inclined part, 36 4th inclined part, 37 1st cutter, 37a 1st inclined surface, 38 2nd cutter, 38a 2nd inclined surface, 40 torsion coil spring, 50 (other embodiment 1) cutting part, 51 slider part, 52 engaging part, 53 guide shaft, 54 cutter rail, 55 1 rail, 55a inclined part, 56 cutter unit, 57 second rail, 58 movable wall, 59 shaft part, 60 cutting part (of other embodiment 2), 61 cutter carriage, 62 convex piece, 63 first leaf spring, 64 1st inclined surface part, 70 cutting part (of other embodiment 3), 71 2nd leaf spring, 72 2nd inclined surface part, 80 (other embodiment 4) cutting part, 81 cutter carriage, 82 magnet, 83 Control part, 84 electromagnetic coil part, F4 urging force of the first leaf spring, F5 urging force of the second leaf spring, F6 attracting force by magnetic force, F7 repulsive force by magnetic force, P roll paper, P1 cut start side end, P2 Opposite end, upstream roll paper after P3 shearing, downstream roll paper after P4 shearing, R roll, X width direction, Y feeding direction, θ shear angle.

Claims (4)

Equipped with a cutter that moves in the direction of travel and cuts the media,
The cutter is provided inclined with respect to the traveling direction,
A path moving in the traveling direction at the time of cutting the medium, Ri path and is Do different to move when it returns after cutting the medium,
A cutter device that moves when the cutter returns after cutting the medium is located on the downstream side of the feeding direction with respect to a route that moves in the advancing direction when cutting the medium. . The cutter device according to claim 1,
The cutter device is characterized in that the cutter is fixed to a carriage. The cutter device according to claim 1 or 2,
A cutter apparatus, comprising: an urging portion, wherein the urging portion urges the carriage in a direction in which a force acts and displaces when the cutter cuts the medium. A feeding unit that feeds the medium in the feeding direction;
A recording unit that performs recording on the medium fed from the feeding unit;
Recording device comprising a kite comprising a cutter device according to any one of claims 1 to 3.

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