JP2009179004A - Cutter device and recorder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutter device cutting a front edge of a cutting body straight even if the cutter has a cutting characteristic. <P>SOLUTION: The cutter device (20) includes: cutters (37) (38) which receive a force to one direction of the upstream side and the downstream side in the feed direction of a cutting body (P) due to a cutting characteristic; a carriage (32) which has the cutters (37) (38) and moves to the width direction X of the cut body (P) orthogonal to the feed direction Y; a guide section (25) which guides the carriage (32) to the width direction X; and an energizing section (40) for energizing the carriage to the same side as the one direction with respect to the cut characteristic at least when the cutters (37) (38) start to cut the cutting body (P). <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention includes a cutter that receives a force in one direction upstream or downstream in the feed direction of the workpiece by cutting characteristics, a carriage that has the cutter and moves in the width direction of the workpiece in relation to the feed direction, The present invention relates to a cutter device having a guide portion that guides a carriage in the width direction, 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, in order for the cutter unit to be smoothly guided by the guide rail, at least a slight gap is required between the cutter unit and the guide rail at the engagement portion. This is because, if there is no gap, the sliding load is remarkably increased, and smooth guidance cannot be performed. And by providing this clearance gap, it can guide smoothly, but there exists a possibility that the attitude | position of the said cutter unit may change at the time of a cutting start and during cutting | disconnection.

Specifically, due to the cutting characteristics during the cutting of the roll paper, the position of the cutter in the feed direction of the roll paper during the cutting may be displaced from the position of the cutter in the feed direction at the start of cutting. There is. In other words, the conventional structure has no countermeasure against the force applied to the cutter unit due to the cut characteristics.
Here, the “cut characteristic” means that when the cutter advances the roll paper which is an example of the object to be cut, it acts from the roll paper in the direction (upstream and downstream of the feeding direction) intersecting the direction in which the cutter advances ( Power).

FIG. 12 shows a cut end portion of roll paper in the prior art.
As shown in FIG. 12, the cutting of the cut start side end portion 61 is started in a state where the cutter is displaced to the downstream side in the feeding direction of the roll paper 60 within the range of the play.
Here, “within the range of backlash” means within a range in which the posture of the cutter is displaced by a slight gap between the cutter unit and the guide rail at the engagement portion.
Further, the reason for displacement downstream in the feeding direction is, for example, due to the weight of the cutter unit. And after a cutting | disconnection start, a cutter receives force by the cut characteristic, for example to the upstream of a feeding direction.

  Therefore, as the cutting is performed, the cutter is displaced upstream in the feeding direction. Thereafter, the cutter reaches the opposite end 62 while maintaining the posture displaced upstream in the feeding direction. As a result, a part of the leading end of the cut upstream roll paper 60 is bent with respect to the width direction X. That is, in the feeding direction Y, the position of the cut start side end portion 61 and the position of the opposite side end portion 62 are greatly different.

  The present invention has been made in view of such a situation, and the problem is to provide a cutter device and a cutter device capable of straightening the tip of the object to be cut even with a cutter having cutting characteristics. It is providing the recording device provided.

  In order to achieve the above object, a cutter device according to a first aspect of the present invention includes a cutter that receives a force in one direction on the upstream side or the downstream side of the workpiece to be cut, depending on the cut characteristics, and the cutter. A carriage that moves in the width direction of the object to be cut relative to the direction, a guide portion that guides the carriage in the width direction, and at least when the cutter starts to cut the object to be cut, the carriage is moved according to the cut characteristics. And an urging portion that urges toward the same side as the direction.

  According to the first aspect of the present invention, the cutter device biases the carriage to the same side as the one direction due to the cut characteristics at least when the cutter starts to cut the object to be cut. Have Therefore, the position of the carriage in the feed direction can be made substantially the same between the start of cutting and the subsequent cutting that is affected by the cutting characteristics.

As a result, it is possible to make the bend at the cut side of the object to be cut between the start of cutting of the object by the cutter and after that, that is, a substantially straight line. This is very effective when there is a backlash between the carriage and the guide portion.
In addition, the biasing portion can bias the carriage only when the cutter starts to cut the workpiece. In this case, it is possible to prevent the slide resistance generated between the carriage and the guide portion from increasing during the cutting.

According to a second aspect of the present invention, in the first aspect, the urging portion is a spring provided on the base portion side of the cutter device.
According to the 2nd aspect of this invention, in addition to the effect similar to a 1st aspect, the said urging | biasing part is a spring provided in the base | substrate part side of the said cutter apparatus. Therefore, the urging portion can be provided at a low cost. For example, it can be constituted by a torsion coil spring, a leaf spring or the like.

According to a third aspect of the present invention, in the first or second aspect, the cut characteristic is generated when an attitude of at least one cutter is inclined with respect to the width direction. In the present application, an angle at which the posture of the cutter is inclined with respect to the width direction is referred to as a “shear angle”.
According to the third aspect of the present invention, in addition to the same effect as the first or second aspect, the cut characteristic is caused by the posture of at least one cutter being inclined with respect to the width direction. . The urging portion is effective when a cut characteristic is generated by the “shear angle”.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the cutter includes a first cutter provided on one surface side of the object to be cut, and a downstream of the first cutter in the feeding direction. And a second cutter provided on a side opposite to the one surface of the workpiece to be sheared to cooperate to shear the workpiece, and the cutting characteristic is The first inclined surface of the cutting edge of one cutter and the second inclined surface of the cutting edge of the second cutter are generated by a force received from the object to be cut.

  According to the fourth aspect of the present invention, in addition to the same function and effect as any one of the first to third aspects, the cutter includes a first cutter provided on one surface side of the object to be cut, and a feed And a second cutter provided on the downstream side of the first cutter in the direction and opposite to the one surface of the workpiece to be sheared together to cut the workpiece. Is caused by the force that the first inclined surface of the blade edge of the first cutter and the second inclined surface of the blade edge of the second cutter receive from the object to be cut when shearing. In such a case, the urging unit is effective.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the downstream side in the feed direction of the object to be cut is lowered from the upstream side, and the cutter has an upstream in the feed direction due to the cut characteristics. A force acts on the side, and the carriage is configured to have its own weight on the downstream side in the feed direction.
According to the fifth aspect of the present invention, in addition to the same effects as in any one of the first to fourth aspects, the feed direction downstream side of the object to be cut is lowered from the upstream side, Due to the cut characteristics, a force acts on the upstream side in the feed direction, and the carriage has a self-weight on the downstream side in the feed direction. That is, the direction of the force due to the cut characteristics and the direction in which the weight acts are opposite to each other. In such a case, the urging portion is effective because the position of the cutter in the feed direction is likely to be displaced between the start of cutting and the subsequent cutting.

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

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 store 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.
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 shows a cut end portion of the roll paper according to the present application.
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.

  The cutting unit 20 as the cutter device of the present embodiment has one direction on the upstream side or the downstream side in the feeding direction, which is the feeding direction of the roll paper P, which is an example of the object to be cut, according to the cutting characteristics based on the “shear angle” or the like. As a carriage that has a first cutter 37 and a second cutter 38, which are examples of cutters that receive force, and a first cutter 37 and a second cutter 38 that move in the width direction X of the roll paper P with respect to the feeding direction Y The cutter unit 30, the guide rail 25 as a guide part for guiding the cutter unit 30 in the width direction X, and when at least the first cutter 37 and the second cutter 38 start cutting the roll paper P, A torsion coil spring 40 which is an example of an urging portion for urging to the same side as the one direction due to the cut characteristic by the “shear angle” or the like; Characterized in that it has.

In the present embodiment, the urging portion is a torsion coil spring 40 that is an example of a spring provided on the base portion side of the cutting portion 20.
Still further, in the present embodiment, the cut characteristics are “shear angle” in which the posture of the second cutter 38 that is at least one of the first cutter 37 and the second cutter 38 is inclined with respect to the width direction X. It is caused by.

  In the present embodiment, the cutter includes a first cutter 37 provided on the upper surface side that is one surface of the roll paper P, and the one surface of the roll paper P that is downstream of the first cutter 37 in the feeding direction Y. And the second cutter 38 provided on the lower surface side which is the opposite surface to shear the roll paper P in cooperation with each other, and the cutting characteristic is the first cutting edge of the first cutter 37 when shearing. The first inclined surface 37 a and the second inclined surface 38 a of the cutting edge of the second cutter 38 are generated by a force received from the roll paper P.

Furthermore, in the present embodiment, the downstream side in the feeding direction of the roll paper P is lowered from the upstream side, and the first cutter 37 and the second cutter 38 are fed by the cut characteristics due to the “shear angle” or the like. A force acts on the upstream side in the direction, and the cutter unit 30 has a configuration in which its own weight acts on the downstream side in the feeding direction.
The printer 1 that is an example of the recording apparatus of the present embodiment is fed from a roll paper supply unit 3 as a feeding unit that feeds roll paper P that is an example of a recording medium, and the roll paper supply unit 3. A recording execution unit 4 as a recording unit that performs recording on the roll paper P by the recording head 12 and a cutting unit 20 that cuts the recorded roll paper P are provided.

  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.

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. The figure which shows the cutting | disconnection edge part of the roll paper which concerns on this application. The figure which shows the cutting | disconnection edge part of the roll paper in a prior art.

Explanation of symbols

1 inkjet printer, 2 main body, 3 roll paper supply unit, 4 recording execution unit,
5 Discharge receiving portion, 6 (roll paper) discharge port, 7 opening, 8 struts, 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 inclination part, 34 2nd inclination part,
35 3rd inclined part, 36 4th inclined part, 37 1st cutter, 37a 1st inclined surface,
38 second cutter, 38a second inclined surface, 40 torsion coil spring,
60 (in the prior art) roll paper, 61 cut start side end, 62 opposite side end,
P roll paper, P1 cut start side edge, P2 opposite side edge, R roll, X width direction,
Y feeding direction, θ shear angle

Claims (6)

A cutter that receives force in one direction upstream or downstream in the feed direction of the object to be cut according to the cutting characteristics;
A carriage having the cutter and moving in the width direction of the object to be cut with respect to the feed direction;
A guide portion for guiding the carriage in the width direction;
A cutter device, comprising: an urging unit that urges the carriage to the same side as the one direction according to the cut characteristics when at least the cutter starts to cut the workpiece.   The cutter device according to claim 1, wherein the urging portion is a spring provided on a base portion side of the cutter device.   3. The cutter device according to claim 1, wherein the cut characteristic is generated when an attitude of at least one cutter is inclined with respect to the width direction. 4. The cutter device according to any one of claims 1 to 3, wherein the cutter is
A first cutter provided on one side of the object to be cut;
The second cutter provided on the downstream side of the first cutter in the feed direction and on the opposite side to the one surface of the workpiece is configured to shear the workpiece in cooperation with each other;
The cutting characteristic is a cutter device that is generated by a force that the first inclined surface of the cutting edge of the first cutter and the second inclined surface of the cutting edge of the second cutter receive from the object to be cut when shearing. In the cutter device according to any one of claims 1 to 4, the downstream side in the feed direction of the object to be cut is lower than the upstream side,
A force acts on the cutter on the upstream side in the feed direction due to the cut characteristics,
A cutter device having a configuration in which a weight of the carriage acts on the downstream side in the feed direction. A feeding unit for feeding a recording medium;
A recording unit for performing recording by a recording head on a recording medium fed from the feeding unit;
A recording device comprising: a cutting unit that cuts a recorded recording medium,
The said cutting part is a recording apparatus provided with the said cutter apparatus described in any one of Claims 1 thru | or 5.

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