JP6369412B2 - Cutting device and printing device - Google Patents

Description

  The present invention relates to a cutting device for half-cutting a cutting object and a printing device.

  Conventionally, a cutting device for half-cutting a cutting object is known. Half-cut is an operation of a cutting device that cuts a cutting object while leaving a part. For example, the printing apparatus disclosed in Patent Document 1 includes a cutter mechanism unit that is an example of a cutting apparatus. The cutter mechanism section half-cuts a print medium that is an example of a cutting object. The cutter mechanism unit includes a cutter and a cutter receiver formed in a cylindrical shape. The cutter is disposed opposite to the cutter receiver. A recess is formed on the outer peripheral surface of the cutter receiver. The cutter mechanism unit sandwiches the print medium between the cutter and the outer peripheral surface of the cutter receiver. The print medium is half cut leaving a portion that has entered the recess of the cutter receiver.

  The recess of the cutter receiver is formed so that the depth changes along the circumferential direction of the outer peripheral surface of the cutter receiver. The cutter receiver rotates so that the portion of the recess facing the cutter changes. Therefore, when the cutter receiver rotates, the portion of the print medium that enters the recess increases or decreases. Accordingly, the cutter mechanism adjusts the half cut amount of the print medium.

JP 2002-137864 A

  In the cutter mechanism portion, if the depth of the concave portion facing the cutter is too shallow, a portion of the half-cut print medium that remains without being cut may be very thin. In this case, the half-cut print medium may be easily broken.

  The objective of this invention is providing the cutting device and printing apparatus which adjust the half-cut amount of a cutting target object, suppressing that it becomes easy to tear a cutting target object.

  The cutting device according to the first aspect of the present invention includes a cutting blade having a blade portion, a first contact surface that is a surface that can be opposed to and in contact with the blade portion, and the first contact surface. And the receiving part which has a recessed part opened toward the specific direction to which the said 1st contact surface turns, Comprising: The said recessed part extends crossing the said specific direction, and the said blade part which contacts the said 1st contact surface A cradle having a facing surface opposite to the cutting blade, a contact position where the blade portion contacts the first contact surface, and a separation position where the blade portion separates from the first contact surface. A cutting blade moving means that moves between the first contact surface and the concave portion, and a predetermined direction that intersects each of the adjacent direction and the specific direction of the first contact surface, the first counter position and the second counter position Means for moving between the first contact surface and the pair. Each of the surfaces is a position facing the blade portion of the cutting blade at the contact position, and the second facing position is a position different from the first facing position, and the first contact surface And a counter moving means that is a position facing the blade portion of the cutting blade at the contact position, and the recess has the receiving table at the first counter position. In the case, the first contact in the case where the blade portion is in contact with the first contact surface and the first recess in the predetermined direction and the cradle is in the second facing position. A position where the blade portion contacts the surface and a second recess located at the same position in the predetermined direction, the first length in the adjacent direction of the first recess, and the adjacent direction of the second recess. The second lengths are different from each other.

  According to the said structure, a cutting target object is pinched | interposed between the 1st contact surface of the receiving stand in a 1st opposing position, and the blade part of the cutting blade which moved to the contact position. The object to be cut is half-cut while leaving the part that has entered the first recess. Similarly, the object to be cut is sandwiched between the first contact surface of the cradle at the second facing position and the blade portion of the cutting blade that has moved to the contact position. The object to be cut is half-cut leaving the part that has entered the second recess. The first length of the first recess and the second length of the second recess are different from each other. Therefore, the cutting device can adjust the half-cut amount of the cutting object by switching the arrangement position of the cradle to either the first facing position or the second facing position. Moreover, even if it is a case where a receiving stand exists in any position of a 1st opposing position and a 2nd opposing position, the site | part of the cutting target object which approachs a recessed part does not become short easily in the direction parallel to a specific direction. That is, of the cutting object to be half-cut, a portion that remains without being cut is not easily thinned. Therefore, the cutting device can suppress the half cut object to be easily broken. As described above, the cutting device can adjust the half-cut amount of the cutting object while suppressing the cutting object from being easily broken.

  A printing apparatus according to a second aspect of the present invention includes the cutting apparatus, and a printing unit that performs printing on a print medium conveyed toward the cutting apparatus. According to the 2nd aspect, there can exist an effect similar to a 1st aspect.

1 is a perspective view of a printing apparatus 1. FIG. 2 is a plan view of the inside of a main body case 11. It is the perspective view which looked at the cutting mechanism 100 from the left front. It is the perspective view which looked at the cutting mechanism 100 from the right front. It is the perspective view which looked at the cradle support part 150 from the rear side. It is the expansion perspective view which looked at the receiving stand 180 from the right front. It is a longitudinal cross-sectional view of the lever 140 and protrusion part 152D. It is explanatory drawing which shows the flow which the receiving stand 180 moves from a 1st half cut position to a 3rd half cut position. It is explanatory drawing which shows the flow which the lever 140 rotates from a 1st rotation position to a 3rd rotation position. It is another perspective view which looked at the cradle support part 150 from the rear side. It is explanatory drawing which shows the flow in which the large diameter tube 9A is fully cut. It is explanatory drawing which shows the flow in which the large diameter tube 9A is half-cut. It is sectional drawing by which the tube 9A is arrange | positioned at the receiving stand 180 in a 2nd half cut position.

<1. Overview of Printing Apparatus 1>
A printing apparatus 1 as an example of an embodiment of the present invention will be described with reference to the drawings. Hereinafter, the upper, lower, lower right, upper left, upper right, and lower left in FIG. 1 will be defined as the upper, lower, front, rear, right, and left sides of the printing apparatus 1, respectively.

  The printing apparatus 1 shown in FIG.1 and FIG.2 is an apparatus which can print the tube 9 which is a cylindrical printing medium, and can cut | disconnect the tube 9 after printing. The printing apparatus 1 performs a half cut or a full cut on the tube 9 after printing. The full cut in this example is an operation of cutting the tube 9 in the circumferential direction and cutting the tube 9 into two or more. The half cut in this example is an operation of cutting the tube 9 while leaving a part in the circumferential direction. Hereinafter, the half cut and the full cut may be collectively referred to as a cutting operation.

  The tube 9 of this example includes a large-diameter tube 9A (see FIG. 12) and a small-diameter tube 9B (see FIG. 12). The large diameter tube 9A is a tube having an outer diameter of 7.5 mm and an inner diameter of 6.5 mm. The small diameter tube 9B is a tube having an outer diameter of 4.5 mm and an inner diameter of 4 mm.

  As shown in FIG. 1, the printing apparatus 1 includes a housing 10 including a main body case 11 and a cover 12. The main body case 11 is a rectangular parallelepiped box-shaped member that is long in the left-right direction. The cover 12 is a plate-like member disposed on the upper side of the main body case 11. The rear end portion of the cover 12 is rotatably supported on the upper rear end portion of the main body case 11. The lock mechanism 13 is provided on the upper side of the front end portion of the main body case 11. The lock mechanism 13 locks the front end portion of the cover 12 that is closed with respect to the main body case 11 to restrict the opening of the cover 12.

  When the cover 12 is closed with respect to the main body case 11 (see FIG. 1), the cover 12 covers the mounting surface 11A (see FIG. 2). The mounting surface 11 </ b> A is an upper surface of the main body case 11. When the user opens the cover 12, the user operates the lock mechanism 13 to release the lock of the cover 12, and rotates the cover 12 upward from the lock mechanism 13. When the cover 12 is opened with respect to the main body case 11, the mounting surface 11A is exposed upward (see FIG. 2).

  An operation unit 17, a tube insertion port 15 (see FIG. 2), and a tube discharge port 16 are provided on the side surface of the housing 10. The operation unit 17 is a plurality of operation buttons including a power button and a start button. The operation unit 17 is provided on the upper right side of the front surface of the main body case 11. The tube insertion port 15 is an opening for guiding the tube 9 into the housing 10. The tube insertion port 15 has a rectangular shape that is provided at the upper part on the rear side of the right surface of the main body case 11 and is slightly longer in the vertical direction. The tube discharge port 16 is an opening for discharging the tube 9 to the outside of the housing 10. The tube discharge port 16 is provided in the upper part on the rear side of the left surface of the main body case 11 and has a rectangular shape that is slightly longer in the vertical direction. The tube discharge port 16 is slightly in front of the tube insertion port 15.

  As shown in FIG. 2, the mounting surface 11A is provided with a ribbon mounting portion 30, a tube mounting portion 40, and the like. The ribbon mounting part 30 is a part where the ribbon cassette 90 can be attached and detached. The ribbon mounting portion 30 is a concave portion that opens upward and is formed in an opening shape substantially corresponding to the ribbon cassette 90 in plan view. The ribbon mounting portion 30 of this example is provided on the left side of the mounting surface 11 </ b> A and on the front side of the tube mounting portion 40.

  The tube mounting part 40 is a part where the tube 9 can be attached and detached. The tube mounting portion 40 is a groove portion that extends upward from the tube insertion port 15 to the vicinity of the right side of the tube discharge port 16 and opens upward. Since the tube discharge port 16 is slightly in front of the tube insertion port 15, the tube mounting portion 40 is slightly inclined to the left front side and extends in the substantially left-right direction. A direction in which the tube mounting portion 40 extends from the tube insertion port 15 toward the tube discharge port 16 is referred to as a tube conveyance direction. The tube conveying direction is parallel to the left-right direction and the front-rear direction, and is orthogonal to the up-down direction. The opening cross section of the tube mounting portion 40 orthogonal to the tube conveying direction is a cross section orthogonal to the extending direction of the tube 9 (that is, the tube 9 of the tube 9 except the portion where the tube mounting portion 40 and the ribbon mounting portion 30 are spatially connected). Slightly larger than (cross section). The user attaches the tube 9 to the tube attachment portion 40 along the tube conveyance direction so that the tube 9 extends from the tube insertion port 15 to the tube discharge port 16.

  With reference to FIG. 2, the control board 19, the power supply unit (not shown), the tube printing mechanism 60, and the ribbon cassette 90 will be described. The control board 19 is a board provided with a CPU, ROM, RAM, etc. (not shown), and controls various operations of the printing apparatus 1. For example, the control board 19 controls the printing operation of the tube printing mechanism 60. The control board 19 of this example is provided at the right rear portion inside the main body case 11 and extends in the vertical direction and the horizontal direction. The power supply unit is connected to a battery (not shown) mounted in the main body case 11 or connected to an external power supply (not shown) via a cord to supply power to the printing apparatus 1. The power supply unit of this example is provided on the front side of the control board 19.

  The ribbon cassette 90 is a box-shaped body that can accommodate the ink ribbon 93. The ribbon roll 91 and the ribbon take-up spool 92 are rotatably supported in the ribbon cassette 90, respectively. The ribbon roll 91 is an unused ink ribbon 93 wound around a spool (not shown). The ribbon take-up spool 92 is a spool around which the used ink ribbon 93 is wound.

  The tube printing mechanism 60 includes a conveyance roller 62, a print head 61, a ribbon take-up shaft 63, and the like. The conveyance roller 62 is a roller provided at a position where a part of the outer peripheral surface enters the rear portion of the tube mounting portion 40. The print head 61 and the ribbon take-up shaft 63 are each erected upward from the bottom surface of the ribbon mounting portion 30. The print head 61 is a thermal head provided with a heating element (not shown) provided at the rear part of the ribbon mounting part 30. The ribbon take-up shaft 63 is a shaft that can rotate the ribbon take-up spool 92. The conveyance roller 62 and the ribbon take-up shaft 63 are connected to a drive motor (not shown) provided inside the main body case 11.

  The print head 61 is provided in front of the conveyance roller 62. The print head 61 is connected to a head drive motor (not shown) provided inside the main body case 11. As the head drive motor is driven, the print head 61 is displaced between the operating position (see FIG. 2) and the retracted position (not shown). When the print head 61 is in the operating position, the print head 61 sandwiches the tube 9 with the conveyance roller 62. When the print head 61 is in the retracted position, the print head 61 is disposed in front of the tube mounting portion 40 and is separated from the conveyance roller 62.

  When the ribbon cassette 90 is attached to the ribbon attachment portion 30 with the print head 61 in the retracted position, the ribbon take-up shaft 63 is inserted into the ribbon take-up spool 92. Thereafter, the print head 61 is displaced to the operating position as the head drive motor is driven. The print head 61 urges the tube 9 in the tube mounting portion 40 and the unused ink ribbon 93 to be directed toward the transport roller 62. The tube 9 biased at this time is elastically deformed and comes into surface contact with the print head 61 via the ink ribbon 93.

  The tube printing mechanism 60 executes the following printing operation under the control of the control board 19. The drive motor of the tube printing mechanism 60 rotates the transport roller 62 and the ribbon take-up shaft 63. As the transport roller 62 rotates, the tube 9 in the tube mounting portion 40 is transported downstream in the tube transport direction. At this time, the tube 9 before printing outside the housing 10 is drawn into the tube mounting portion 40 from the right surface of the main body case 11 through the tube insertion port 15. As the ribbon take-up spool 92 rotates as the ribbon take-up shaft 63 rotates, the ink ribbon 93 is pulled out from the ribbon roll 91.

  The print head 61 uses the drawn ink ribbon 93 to print the character on the transported tube 9. The print head 61 of this example prints a normal image of the character on the front surface of the tube 9 via the rear side. Therefore, the front surface of the tube 9 is the printing surface of the tube 9. The used ink ribbon 93 is taken up by a ribbon take-up spool 92. The tube 9 after printing is conveyed downstream from the conveyance roller 62 in the tube conveyance direction. The tube 9 is discharged from the main body case 11 via the left end portion of the tube mounting portion 40 and the tube discharge port 16.

<2. Outline of Structure and Operation of Cutting Mechanism 100>
As shown in FIG. 2, a cutting mechanism 100 is provided between the left end portion of the tube mounting portion 40 and the tube discharge port 16. The cutting mechanism 100 is a mechanism that performs a cutting operation on the tube 9 after printing. The outline of the cutting mechanism 100 is as follows. The cutting mechanism 100 includes a cutting blade 275 (see FIG. 11) and a cradle 180. The cutting blade 275 and the cradle 180 are arranged to face each other in the front-rear direction across the tube conveyance path 9C (see FIG. 3). The tube conveyance path 9C is a path through which the tube 9 is conveyed from the left end of the tube mounting portion 40 to the tube discharge port 16, and extends in the left-right direction. The cutting blade 275 has a blade portion 275A (see FIG. 11) extending linearly and is movable in the front-rear direction. The cradle 180 is a member that can be visually recognized by the user when the cover 12 is opened. The cutting mechanism 100 moves the cutting blade 275 toward the cradle 180 after the tube 9 is disposed on the cradle 180. The blade portion 275 </ b> A of the cutting blade 275 sandwiches the tube 9 with the cradle 180. The cutting operation with respect to the tube 9 is performed by the cutting blade 275 pressing the tube 9 toward the cradle 180. The cutting mechanism 100 switches the cutting operation on the tube 9 to half cut or full cut by switching the position of the cradle 180 in the left-right direction. In the following description, the horizontal position where the tube 9 is sandwiched between the cutting blade 275 and the cradle 180 is referred to as a cutting position S. In this example, the position of the cutting blade 275 in the left-right direction matches the cutting position S.

  As shown in FIG. 3, the cutting mechanism 100 includes a positioning mechanism 111 (see FIG. 2), a cradle moving mechanism 120, and a cutting blade moving mechanism 200. The positioning mechanism 111 positions the tube 9 after printing in the vertical direction and guides it to the cradle 180. The cradle moving mechanism 120 is a mechanism that moves the cradle 180 in the left-right direction. The cutting blade moving mechanism 200 is a mechanism that supports the cutting blade 275 so as to be movable in the front-rear direction.

<2-1. Positioning mechanism 111>
As shown in FIG. 2, the positioning mechanism 111 is fixed to the downstream side in the tube conveyance direction from the left end portion of the tube mounting portion 40. The positioning mechanism 111 includes a bottom wall portion 112, a rear wall portion 114, and a front wall portion 116. The bottom wall portion 112 is a wall portion that is disposed at substantially the same height as the bottom portion of the tube mounting portion 40 and faces upward. The shape of the bottom wall portion 112 is substantially rectangular in plan view. The bottom wall portion 112 comes into contact with the tube 9 from the lower side and restricts the movement of the tube 9 to the lower side. Thereby, the bottom wall portion 112 can position the vertical position of the tube 9 supplied to the cutting mechanism 100. Hereinafter, the vertical position of the lower end of the tube 9 positioned by the bottom wall portion 112 is referred to as a reference position P (see FIG. 11).

  The rear wall portion 114 and the front wall portion 116 are wall portions erected upward from the rear end portion and the front end portion of the bottom wall portion 112, respectively. The rear wall portion 114 and the front wall portion 116 face each other with the tube conveyance path 9C interposed therebetween. The facing distance between the rear wall portion 114 and the front wall portion 116 is slightly longer than the outer diameter of the tube 9.

<2-2. Receiving base moving mechanism 120>
The cradle moving mechanism 120 will be described with reference to FIGS. As shown in FIGS. 3 and 4, the cradle moving mechanism 120 includes a cradle support unit 150, a cradle 180, a lever 140, a DC motor 104, a power transmission unit 105 (see FIG. 4), and the like.

<2-2-1. Receiving Support Unit 150>
As shown in FIG. 5, the cradle support unit 150 includes a holding member 102 (see FIGS. 3 and 4), a support member 152, and support bars 161 and 163. The holding member 102 is a plate-like member that is provided on the lower side of the tube conveyance path 9C (see FIG. 2) and is substantially rectangular in a side view.

  The support member 152 is a plate-like member fixed on the upper side of the holding member 102. The support member 152 includes a lower wall portion 152A, a left wall portion 152B, a right wall portion 152C, and a protruding portion 152D. The lower wall portion 152A is disposed below the tube conveyance path 9C. The lower wall portion 152A is a substantially rectangular wall portion extending in the front-rear direction so as to straddle the tube conveyance path 9C in plan view. The left wall portion 152B and the right wall portion 152C are wall portions that stand upward from the left end portion and the right end portion of the lower wall portion 152A, respectively. Each of the left wall portion 152B and the right wall portion 152C has an L shape in a left side view. Inner corners of the left wall portion 152B and the right wall portion 152C are close to the tube conveyance path 9C (see FIG. 3). The protrusion 152D is a cylindrical body that protrudes leftward from the rear upper part of the right wall 152C.

  The support rods 161 and 163 are rod-shaped members extending in the left-right direction, and are provided side by side from above. The support bars 161 and 163 are all supported by the left wall portion 152B and the right wall portion 152C.

<2-2-2. Receptacle 180>
5 and 6 is disposed between the left wall portion 152B and the right wall portion 152C. The cradle 180 includes a support portion 186 (see FIG. 5), a mounting portion 187, and a covering portion 185. In FIG. 6, illustration of the support portion 186 of the cradle 180 is omitted (the same applies to FIGS. 11 to 13).

  The support portion 186 is a rectangular parallelepiped box-shaped member that is long in the vertical direction. Two upper insertion holes 186 </ b> A and two lower insertion holes 186 </ b> B are formed in the support portion 186. The two upper insertion holes 186A and the two lower insertion holes 186B extend in the left-right direction. One of the two upper insertion holes 186A passes through the left wall portion of the support portion 186, and the other of the two upper insertion holes 186A passes through the right wall portion of the support portion 186. Similarly, one of the two lower insertion holes 186B passes through the left wall portion of the support portion 186, and the other of the two lower insertion holes 186B passes through the right wall portion of the support portion 186. The support bar 161 is inserted through the two upper insertion holes 186A, and the support bar 163 is inserted through the two lower insertion holes 186B. Accordingly, the cradle 180 is supported by the support bars 161 and 163 so as to be movable in the left-right direction.

  The left wall portion of the support portion 186 is a specific wall portion 186C. The specific wall portion 186C is a substantially rectangular wall portion in a side view and extends in the vertical direction. The specific wall portion 186C faces the right wall portion 152C of the support member 152 from the left side. A specific end surface 177 is formed below the right end surface of the specific wall portion 186C. The specific end surface 177 includes a first specific end surface 177A, a second specific end surface 177B, a third specific end surface 177C, and a fourth specific end surface 177D. The first specific end face 177A is a plane extending toward the lower right. In other words, the first specific end surface 177A extends to the right as it goes downward. A distance along the left-right direction from the upper end to the lower end of the first specific end face 177A (hereinafter referred to as the first specific distance) is indicated by a dimension V1 in FIG. The second specific end surface 177B is a plane extending downward from the lower end of the first specific end surface 177A. The third specific end surface 177C is a plane extending from the lower end of the second specific end surface 177B toward the lower right. In other words, the third specific end surface 177C extends to the right as it goes downward. A distance along the left-right direction from the upper end to the lower end of the third specific end surface 177C (hereinafter referred to as a second specific distance) is indicated by a dimension V2 in FIG. The fourth specific end surface 177D is a plane that extends downward from the lower end of the third specific end surface 177C.

  The support rods 161 and 163 support the coil springs 171 and 173 (see FIG. 5), respectively. The coil spring 171 is disposed in a compressed state between a contact wall (not shown) formed inside the upper insertion hole 186A and the left wall 152B. The coil spring 173 is disposed in a compressed state between a contact wall (not shown) formed inside the lower insertion hole 186B and the left wall 152B. The coil springs 171 and 173 respectively urge the cradle 180 to the right via a contact wall portion (not shown).

  As shown in FIG. 6, the mounting portion 187 is a substantially rectangular parallelepiped member mounted on the front surface of the support portion 186 (see FIG. 5). A standing portion 184 that stands slightly forward is provided at a substantially central portion of the front surface 187A of the mounting portion 187. The standing portion 184 has a substantially right triangle shape in which the upper right corner is substantially a right angle when viewed from the front. The standing portion 184 includes an upper surface 184A, a right surface 184B, an inclined surface 184C, and a front surface 184D. The upper surface 184A is a plane extending in the left-right direction. The right surface 184B is a plane that extends downward from the right end of the upper surface 184A. The upper surface 184A and the right surface 184B are orthogonal to each other. 184C is a plane that connects the left end of the upper surface 184A and the lower end of the right surface 184B, and faces the lower left. The front surface 184D is a plane connected to the front ends of the upper surface 184A, the right surface 184B, and the inclined surface 184C, and faces forward. The vertical position of the lower end of the inclined surface 184C is above the reference position P.

  The covering portion 185 is a thin plate member. The covering portion 185 is attached to the mounting portion 187 so as to cover the upper end portion, the lower end portion, and the right portion of the front surface 187A of the mounting portion 187. The plate | board thickness of the coating | coated part 185 is substantially equal to the standing amount from the front surface 187A of the standing part 184. FIG. The covering portion 185 is provided with a through hole 189. The through hole 189 has a substantially rectangular shape when viewed from the front, and penetrates the covering portion 185 in the thickness direction. The through hole 189 exposes a portion of the left portion of the front surface 187A excluding both ends in the vertical direction and the standing portion 184 to the front. Hereinafter, the portion of the front surface 187A exposed by the through hole 189 is referred to as “opposing surface 187B”.

  The covering portion 185 includes an inner lower surface 185A, an inner right surface 185B, and an inner upper surface 185C. The inner lower surface 185A, the inner right surface 185B, and the inner upper surface 185C are flat surfaces formed along the through hole 189, and are formed so as to stand slightly from the facing surface 187B. In this example, the standing amount of the inner lower surface 185A, the inner right surface 185B, and the inner upper surface 185C from the facing surface 187B is substantially equal to the standing amount of the standing portion 184. The inner lower surface 185A is formed below the through hole 189 and extends in the left-right direction. The inner lower surface 185A is below the reference position P. The inner right surface 185B is formed on the right side of the through hole 189 and extends upward from the right end of the inner lower surface 185A. The upper part of the inner right surface 185B from the substantially vertical center is opposed to and contacts the right surface 184B of the standing portion 184 from the right side. That is, the upper end of the inner right surface 185B below the substantially vertical center (hereinafter referred to as the specific inner right surface 185D) is connected to the right end of the inclined surface 184C.

  The inner upper surface 185C is formed above the through hole 189 and extends leftward from the upper end of the inner right surface 185B. The inner upper surface 185C is above the reference position P. The right portion of the inner upper surface 185C from the approximate center in the left-right direction is in contact with the upper surface 184A of the standing portion 184 so as to face from above. The inner upper surface 185C faces the inner lower surface 185A with the through hole 189 interposed therebetween.

  Hereinafter, in the cradle 180, the opposing surface 187B, the inclined surface 184C of the standing portion 184, the inner lower surface 185A of the covering portion 185, the specific inner right surface 185D of the covering portion 185, and the inner upper surface 185C of the covering portion 185 are formed. This part is referred to as “recess 190”. The recess 190 opens forward. In this example, the depth, which is the length in the front-rear direction of the recess 190, is substantially uniform over the left-right direction and the up-down direction.

  The recess 190 includes a first recess 191, a second recess 192, and a third recess 193. The first recess 191, the second recess 192, and the third recess 193 are arranged in order from the left side to the right side, and are integrally formed. The lengths of the first recess 191, the second recess 192, and the third recess 193 in the vertical direction are sequentially shortened.

  The first recess 191 is formed between the left portion of the inner lower surface 185A and the left portion of the inner upper surface 185C. That is, both ends in the vertical direction of the first recess 191 are formed by the inner lower surface 185A and the inner upper surface 185C. The length in the vertical direction of the first recess 191 (hereinafter referred to as the first length) is illustrated by the dimension L1 in FIG. The first length is larger than the outer diameter of the large diameter tube 9A.

  The second recess 192 is formed between a substantially central portion in the left-right direction of the inclined surface 184C and a right portion of the inner lower surface 185A from the substantially center in the left-right direction. That is, both ends in the vertical direction of the second recess 192 are formed by the inclined surface 184C and the inner lower surface 185A. The length in the vertical direction of the second recess 192 (hereinafter referred to as the second length) is illustrated by the dimension L2 in FIG. The second length is smaller than the outer diameter of the large diameter tube 9A and larger than the outer diameter of the small diameter tube 9B. The distance from the second recess 192 to the first recess 191 along the left-right direction is equal to the first specific distance (dimension V1 in FIG. 5).

  The third recess 193 is formed between the right end portion of the inner lower surface 185A and the right end portion of the inclined surface 184C. That is, both ends in the vertical direction of the third recess 193 are formed by the inclined surface 184C and the inner lower surface 185A. The length in the vertical direction of the third recess 193 (hereinafter referred to as the third length) is illustrated by the dimension L3 in FIG. The third length is smaller than the outer diameter of the small diameter tube 9B. The distance from the third recess 193 to the second recess 192 along the left-right direction is equal to the second specific distance (dimension V2 in FIG. 5).

  The front surface of the covering portion 185 is a plane that faces the tube conveyance path 9 </ b> C (see FIG. 3) in close proximity from the rear. The front surface of the covering portion 185 can contact the blade portion 275 </ b> A of the cutting blade 275. The front surface of the covering portion 185 extends in the left-right direction so as to straddle the cutting position S (see FIG. 2) in plan view. The front surface of the covering portion 185 is substantially flush with the front surface 184D of the standing portion 184.

  The front surface of the covering portion 185 includes two first contact surfaces 181 and a second contact surface 182. The two first contact surfaces 181 are adjacent to each other in the vertical direction across the recess 190. The second contact surface 182 is disposed on the right side of the recess 190 and the first contact surface 181.

  The cradle 180 having the above-described configuration is supported by the support rods 161 and 163 so as to be movable in the left-right direction, thereby moving between a full cut position (see FIG. 10) and a half cut position (see FIG. 8). Is possible. The full cut position is a horizontal position of the cradle 180 where a part of the second contact surface 182 is at the cutting position S. In other words, the full cut position is the horizontal position of the cradle 180 where the second contact surface 182 contacts and contacts the blade portion 275A of the cutting blade 275. The half-cut position is the left-right direction position of the cradle 180 where the recess 190 and the two first contact surfaces 181 are arranged at the cutting position S. In other words, the half-cut position is such that the two first contact surfaces 181 are in contact with and opposed to the blade portion 275A, and the opposed surface 187B is opposed to the blade portion 275A with the through hole 189 interposed therebetween. Is the left-right position.

  The half-cut position includes a first half-cut position (see FIG. 8A), a second half-cut position (see FIG. 8B), and a third half-cut position (see FIG. 8C). The first half-cut position is a position in the left-right direction of the cradle 180 where the first recess 191 is at the cutting position S. The second half-cut position is a position in the left-right direction of the cradle 180 where the second recess 192 is at the cutting position S. The third half-cut position is a position in the left-right direction of the cradle 180 where the third recess 193 is at the cutting position S. The first half cut position, the second half cut position, and the third half cut position are arranged in order from the right side to the left side on the right side of the full cut position (see FIG. 10). A distance (hereinafter referred to as a first predetermined distance) from the first half cut position to the full cut position in the left-right direction is illustrated by a dimension W1 in FIG.

<2-2-3. Lever 140>
As shown in FIG. 5, the lever 140 is rotatably supported by the support bar 161 on the right side of the right wall portion 152 </ b> C of the support member 152. The lever 140 is rotated by a user's hand, for example. The user can switch the horizontal position of the cradle 180 to any of the first half-cut position, the second half-cut position, and the third half-cut position by rotating the lever 140.

  The lever 140 includes a connecting portion 142. The connecting portion 142 is rotatably supported by the support bar 161 between the right wall portion 152C of the support member 152 and the specific wall portion 186C of the support portion 186. In other words, the connecting portion 142 is aligned with the right wall portion 152C and the specific wall portion 186C in the left-right direction.

  As shown in FIG. 7, a hole portion 143 facing in the left-right direction is formed in a portion of the connecting portion 142 that is in front of the support rod 161. An extending portion 144 is formed in a portion of the connecting portion 142 opposite to the support rod 161 with respect to the hole portion 143. The extending portion 144 is a plate-like body that extends in a substantially vertical direction intersecting the rotation direction of the lever 140 and has a thickness in a direction approaching or separating from the support rod 161. The extending portion 144 can be bent in a direction in which the hole portion 143 is reduced with both end portions in the extending direction as fulcrums.

  An end surface of the extending portion 144 in a direction away from the support rod 161 is a contact surface 145. The contact surface 145 contacts the protrusion 152D from the front side. A first accommodating portion 145A, a second accommodating portion 145B, and a third accommodating portion 145C are formed on the contact surface 145 in order from the lower side along the extending direction of the extending portion 144. The first storage portion 145A, the second storage portion 145B, and the third storage portion 145C are concave portions that are recessed in an arc shape toward the support rod 161, respectively.

  The protrusion 152D is accommodated in any of the first accommodation portion 145A, the second accommodation portion 145B, and the third accommodation portion 145C. Hereinafter, any one of the first housing portion 145A, the second housing portion 145B, and the third housing portion 145C in which the protrusion 152D is housed is referred to as a “specific housing portion”. 145A of 1st accommodating parts, 2nd accommodating part 145B, and 145C of 3rd accommodating parts each surround the substantially half of the circumferential direction of protrusion part 152D accommodated. Therefore, even if a slight force directed in the direction of rotation about the support bar 161 acts on the lever 140, the rotation of the lever 140 is limited by the protrusion 152D coming into contact with the specific accommodating portion.

  Of the connecting portion 142, the surface facing the clockwise direction with the support rod 161 as the center is the sliding surface 146. The sliding surface 146 of this example is a plane that extends perpendicular to the rotation direction of the lever 140. In other words, the sliding surface 146 does not have a length in the rotation direction of the lever 140. The sliding surface 146 is slidable with respect to the specific end surface 177.

  The lever 140 includes a knob 149. The knob portion 149 is a rectangular plate-like body that is provided at the upper end of the connecting portion 142 and faces substantially in the front-rear direction. The knob portion 149 of this example is formed integrally with the connecting portion 142. The user can pick the knob 149 by hand.

  The lever 140 having the above-described configuration is centered on the support rod 161, with the first rotation position (see FIG. 9A), the second rotation position (see FIG. 9B), and the third rotation position (see FIG. 9). c)). The first rotation position is a rotation position of the lever 140 in which the protrusion 152D is accommodated in the first accommodation portion 145A. When the lever 140 is in the first rotation position, the sliding surface 146 comes into contact with the first specific end surface 177A of the cradle 180 in the first half-cut position from above.

  The second rotation position is a rotation position of the lever 140 in which the protrusion 152D is accommodated in the second accommodation portion 145B. The second rotational position is a position displaced clockwise with respect to the first rotational position in a right side view. When the lever 140 is in the second rotation position, the sliding surface 146 comes into contact with the second specific end surface 177B of the cradle 180 in the second half cut position from the right side.

  The third rotation position is a rotation position of the lever 140 in which the protrusion 152D is accommodated in the third accommodation portion 145C. The third rotation position is a position displaced in the clockwise direction in the right side view from the second rotation position. When the lever 140 is in the third rotation position, the left end of the sliding surface 146 contacts the fourth specific end surface 177D of the cradle 180 in the third half cut position from the right side.

  For example, the outline of the operation of the lever 140 rotating from the first rotation position to the second rotation position is as follows. After opening the cover 12, the user picks the knob 149 (see FIG. 5) of the lever 140 in the first rotation position, and rotates the lever 140 clockwise as viewed from the right side. Since the first accommodating portion 145A is pressed by the protruding portion 152D, the extending portion 144 bends in the direction in which the hole portion 143 is reduced. The first accommodating portion 145A is deformed in a direction away from the protruding portion 152D. Thereby, with rotation of the lever 140, the protrusion 152D rides on the first accommodating portion 145A. That is, the lever 140 rotates from the first rotation position to the second rotation position against the force generated by the contact between the protrusion 152D and the first storage portion 145A. When the lever 140 rotates to the second rotation position, the protrusion 152D is accommodated in the second accommodation portion 145B. The extended portion 144 that has been bent is restored to its original shape. When the extended portion 144 is restored to the original shape, the second accommodating portion 145B surrounds approximately half of the protruding portion 152D in the circumferential direction. Thereby, the lever 140 in the second rotation position is restricted from rotating toward the first rotation position or the second rotation position.

  The operation of rotating the lever 140 from the second rotation position to the first rotation position and the operation of rotating the lever 140 between the second rotation position and the third rotation position are as follows. This is the same as the above-described operation of rotating to the second rotation position.

<2-2-4. DC motor 104, power transmission unit 105>
As shown in FIG. 3, the DC motor 104 is fixed to the front portion of the right surface of the holding member 102. The output shaft of the DC motor 104 passes through the holding member 102 and protrudes leftward from the holding member 102. A motor gear 104 </ b> A is provided at the tip of the output shaft of the DC motor 104.

  As shown in FIG. 4, the power transmission unit 105 is a mechanism for transmitting the driving force of the DC motor 104 to the cradle 180. The power transmission unit 105 includes a rotation member 106 (see FIG. 3), an intermittent gear 136, a shaft portion 154, a cam drive gear 156, a cam member 160 (see FIG. 5), and a contact portion 179 (see FIG. 5). The rotating member 106 (see FIG. 3) is disposed on the left side with respect to the rear portion of the holding member 102. The rotating member 106 is a member that rotates around an axis (not shown) extending in the left-right direction, and has a thickness in the left-right direction. A first tooth portion 106 </ b> A and a second tooth portion (not shown) are formed on the right portion of the rotating member 106. The first tooth portion 106A is formed in an annular shape when viewed from the right side, and is connected to the motor gear 104A via a plurality of gears (not shown). The second tooth portion is disposed inside the first tooth portion 106A and has a circular shape when viewed from the right side. The second tooth portion of this example is formed integrally with the first tooth portion 106A.

  The intermittent gear 136 is provided on the side opposite to the rotating member 106 with respect to the holding member 102. The intermittent gear 136 is provided on a support shaft 132 that penetrates the holding member 102 and extends in the left-right direction. The support shaft 132 is rotatably supported by the holding member 102. The left end portion of the support shaft 132 supports an intermediate gear (not shown). The intermediate gear is arranged on the left side with respect to the holding member 102 and inside the first tooth portion 106A of the rotating member 106 (see FIG. 3). The intermediate gear meshes with the second tooth portion (not shown) of the rotating member 106. Accordingly, the driving force of the DC motor 104 is transmitted to the intermittent gear 136 through the motor gear 104A, the rotating member 106, the intermediate gear, and the support shaft 132. A tooth portion 136 </ b> A is provided on a part of the circumferential surface of the intermittent gear 136 in the rotational direction.

  Hereinafter, the counterclockwise direction in the right side view with the support shaft 132 as the center is referred to as “first rotation direction”, and the direction opposite to the first rotation direction is referred to as “second rotation direction”. The first rotation direction is the direction in which the arrow A1 shown in FIG. 4 faces. The second rotation direction is the direction in which the arrow A2 shown in FIG. 4 is directed. When the DC motor 104 is rotationally driven in the forward direction, the intermittent gear 136 is rotated in the first rotational direction. On the other hand, when the DC motor 104 is rotationally driven in the reverse direction, the intermittent gear 136 rotates in the second rotational direction.

  The intermittent gear 136 shown in FIG. 4 is in the initial rotation position. When the intermittent gear 136 is in the initial rotation position, the end portion of the tooth portion 136A in the second rotation direction is at a rotation position slightly displaced in the first rotation direction from a position directly above the support shaft 132.

  The shaft portion 154 is a shaft member that extends in the left-right direction above the intermittent gear 136 and below the support rod 163. The shaft portion 154 is rotatably supported by the left wall portion 152B and the right wall portion 152C of the support member 152. The shaft portion 154 extends further to the right than the right wall portion 152C. Hereinafter, the counterclockwise direction in the right side view with the shaft portion 154 as the center is referred to as “third rotation direction”, and the direction opposite to the third rotation direction is referred to as “fourth rotation direction”. The third rotation direction is the direction in which the arrow A3 shown in FIG. 4 is directed. The fourth rotation direction is a direction in which an arrow A4 shown in FIG. 4 faces.

  The cam drive gear 156 is fixed to the right end portion of the shaft portion 154. The cam drive gear 156 can rotate together with the shaft portion 154. The cam drive gear 156 is located on the rear side of the rear wall 114 (see FIG. 2). A tooth portion 156 </ b> A is provided on the peripheral surface of the cam drive gear 156. The tooth portion 156 </ b> A can mesh with the tooth portion 136 </ b> A of the intermittent gear 136. When the tooth portion 156A meshes with the tooth portion 136A (see FIG. 4), the cam drive gear 156 is rotated by the intermittent gear 136. When the intermittent gear 136 is in the initial rotation position, the end portion of the tooth portion 136A in the second rotation direction is located slightly forward of the lower end portion of the tooth portion 136A. That is, when the intermittent gear 136 is in the initial rotation position, the intermittent gear 136 and the cam drive gear 156 do not mesh with each other.

  As shown in FIG. 5, the cam member 160 is supported by the shaft portion 154 between the left wall portion 152B and the right wall portion 152C. The cam member 160 can rotate together with the shaft portion 154. The cam member 160 includes a cam surface 162 that slides with respect to a contact portion 179 described later. The cam surface 162 includes a first cam surface 162A, a second cam surface 162B, and a third cam surface 162C. The first cam surface 162A is a surface extending in parallel with the fourth rotation direction (arrow A4 direction) and faces leftward. The second cam surface 162B is a surface that extends to the left along the fourth rotational direction from the end portion of the first cam surface 162A in the fourth rotational direction. Hereinafter, the distance along the left-right direction from one end to the other end of the second cam surface 162B in the rotation direction around the shaft portion 154 is referred to as a second predetermined distance. The second predetermined distance is illustrated by the dimension W2 in FIG. The second predetermined distance is the same as the first predetermined distance (dimension W1 in FIG. 6). The third cam surface 162C is a surface that extends in parallel with the fourth direction from the end of the second cam surface 162B in the fourth direction and faces leftward.

  The cam member 160 shown in FIG. 5 is in the initial rotation position. When the cam member 160 is in the initial rotation position, the first cam surface 162A is located immediately above the shaft portion 154.

  The contact portion 179 has a hemispherical shape that protrudes downward from the lower wall portion of the support portion 186 of the cradle 180. The contact portion 179 can move in the left-right direction together with the cradle 180. When the cam member 160 is in the initial rotation position and the cradle 180 is in the first half cut position (see FIG. 8A), the contact portion 179 is moved from the left side by the biasing force of the coil springs 171 and 173. One cam surface 162A is pressed.

<2-2-5. Outline of operation of cradle moving mechanism 120>
The cradle moving mechanism 120 before starting the operation is in an initial state. When the cradle moving mechanism 120 is in the initial state, the cradle 180 is in the half-cut position, and the intermittent gear 136 and the cam member 160 are each in the initial rotation position (see FIGS. 4 and 5). An outline of the operation of the cradle moving mechanism 120 having the above configuration will be described below.

  First, with reference to FIG. 8, FIG. 9, the operation | movement outline | summary in which the receiving stand 180 moves between a 1st half cut position and a 3rd half cut position is demonstrated. The lever 140 is in the first rotation position, and the cradle 180 is in the first half cut position. In addition, the figure in the area | region enclosed with the dashed-two dotted lines Z1-Z3 shown in FIG. 9 is an enlarged view of the figure in the area | region enclosed with the dashed-two dotted lines Z1-Z3 shown in FIG. 8, respectively.

  The user picks the knob 149 and rotates the lever 140 clockwise as viewed from the right side. Accordingly, the lever 140 rotates from the first rotation position toward the second rotation position (see FIGS. 9A and 9B). As the lever 140 rotates from the first rotation position to the second rotation position, the sliding surface 146 slides from above to below with respect to the first specific end surface 177A. Thereby, the lever 140 moves the receiving stand 180 to the left from the first half-cut position against the biasing force of the coil springs 171 and 173. The contact portion 179 is separated from the first cam surface 162A to the left. After sliding with respect to the first specific end surface 177A, the sliding surface 146 slides downward from above with respect to the second specific end surface 177B. At this time, the cradle 180 reaches the second half-cut position. While the sliding surface 146 slides with the second specific end surface 177B, the horizontal position of the cradle 180 does not change. That is, the cradle 180 is located at the second half cut position. When the lever 140 is rotated to the second rotation position, the sliding surface 146 comes into contact with the lower end of the second specific end surface 177B. Since the second specific end surface 177B contacts the sliding surface 146, the cradle 180 biased by the coil springs 171 and 173 is restricted from moving to the right.

  The user further rotates the lever 140 in the second rotation position clockwise as viewed from the right side. The lever 140 rotates from the second rotation position toward the third rotation position (see FIGS. 9B and 9C). As the lever 140 rotates from the second rotation position to the third rotation position, the sliding surface 146 slides downward from above with respect to the third specific end surface 177C. Thereby, the lever 140 moves the receiving stand 180 further leftward from the second half-cut position against the urging force of the coil springs 171 and 173. The sliding surface 146 contacts the upper end of the fourth specific end surface 177D after sliding with respect to the third specific end surface 177C. At this time, the cradle 180 reaches the third half-cut position, and the lever 140 rotates to the third rotation position. Since the fourth specific end surface 177D contacts the sliding surface 146, the cradle 180 biased by the coil springs 171 and 173 is restricted from moving to the right.

  When the user rotates the lever 140 at the third rotation position to the first rotation position via the second rotation position, the cradle 180 causes the second half cut by the urging force of the coil springs 171 and 173. Move to the first half-cut position via the position.

  Next, with reference to FIGS. 3, 4, 8 (a), and 10, an outline of the operation of the cradle 180 accompanying the rotational drive of the DC motor 104 will be described. The cradle 180 is in the first half-cut position (see FIG. 8A).

  When the cradle moving mechanism 120 is in the initial state, when the DC motor 104 is driven to rotate in the forward direction, the intermittent gear 136 (see FIG. 4) rotates in the first rotation direction (arrow A1 direction). The intermittent gear 136 idles without meshing with the cam drive gear 156. Therefore, the cradle 180 maintains the state located at the first half-cut position.

  On the other hand, when the cradle moving mechanism 120 is in the initial state, when the DC motor 104 is rotationally driven in the reverse direction, the intermittent gear 136 (see FIG. 4) rotates in the second rotational direction (arrow A2 direction). Immediately after the intermittent gear 136 starts to rotate in the second rotational direction, the intermittent gear 136 meshes with the cam drive gear 156. As the intermittent gear 136 continues to rotate in the second rotation direction, the cam drive gear 156 is rotated in the third rotation direction (the direction of arrow A3 in FIG. 5). Thereby, the cam member 160 rotates in the third rotation direction from the initial rotation position. The second cam surface 162B that rotates in the third rotation direction comes into contact with the contact portion 179 from the fourth rotation direction side. The contact portion 179 is urged leftward by the second cam surface 162B. The cradle 180 moves from the first half-cut position toward the full-cut position against the urging force of the coil springs 171 and 173.

  When the contact portion 179 contacts the end portion of the third cam surface 162C in the third direction instead of the second cam surface 162B (see FIG. 10), the cradle 180 has the second half cut position and the third half cut. The full cut position is reached through the positions in order. As the DC motor 104 continues to rotate in the reverse direction, the contact portion 179 slides with respect to the third cam surface 162C. During this time, the horizontal position of the cradle 180 does not change, and the cradle 180 is located at the full cut position.

  Even if the cradle 180 is in the second half-cut position or the third half-cut position before the DC motor 104 is rotated in the reverse direction, the cam member 160 is moved from the initial rotation position to the third rotation direction. The second cam surface 162 </ b> B comes into contact with the contact portion 179 during the rotation process. Thereby, the cradle 180 in the second half cut position or the third half cut position moves to the full cut position.

<2-3. Cutting blade moving mechanism 200>
The cutting blade moving mechanism 200 will be described with reference to FIG. The cutting blade moving mechanism 200 includes a rotating unit 215. The rotation part 215 is a part formed in the left part of the rotation member 106 (refer FIG. 5) mentioned above. That is, the rotating part 215 can rotate integrally with the first tooth part 106A and the second tooth part (not shown) described above. A pressing pin 215 </ b> A is provided on the left surface of the rotating unit 215. The pressing pin 215A is a cylindrical body that protrudes leftward from the rotating portion 215.

  Hereinafter, the counterclockwise direction in the left side view of the rotation direction of the rotation member 106 is referred to as a “first direction”, and the direction opposite to the first direction is referred to as a “second direction”. The first direction is the direction in which the arrow B1 shown in FIG. 3 faces. The second direction is the direction in which the arrow B2 shown in FIG. 3 faces. When the DC motor 104 is driven to rotate in the forward direction, the rotating unit 215 rotates in the first direction, and when the DC motor 104 is driven to rotate in the opposite direction, the rotating unit 215 rotates in the second direction.

  3 is in the initial rotation position. When the rotating unit 215 is at the initial rotation position, the pressing pin 215A is at a rotation position slightly displaced in the first direction from the rotation position directly above the rotation center of the rotation member 106.

  A link member 220 is provided on the left side of the rotating unit 215 and on the left rear side of the motor gear 104A. The link member 220 is a substantially L-shaped plate member when viewed from the right side. The link member 220 is rotatable around a link shaft portion 223 extending in the left-right direction. The right end portion of the link shaft portion 223 is fixed to the left surface of the holding member 102. Hereinafter, the counterclockwise direction in the left side view centering on the link shaft portion 223 is referred to as a third direction, and the direction opposite to the third direction is referred to as a fourth direction. The third direction is the direction in which the arrow B3 shown in FIG. 3 faces. The fourth direction is the direction in which the arrow B4 shown in FIG. 3 faces. The link member 220 is urged in the fourth direction by a spring 220 </ b> A provided on the link shaft portion 223.

  The link member 220 includes a first plate-like portion 221 and a second plate-like portion 222. The first plate-like portion 221 is a plate-like portion extending substantially in the front-rear direction below the tube conveyance path 9C. The second plate-like portion 222 is a plate-like portion extending from the front end portion of the first plate-like portion 221 to the upper side with an inclination of approximately 90 ° with respect to the first plate-like portion 221. The upper end portion of the second plate-like portion 222 is disposed on the front side with respect to the tube conveyance path 9C.

  The first plate portion 221 is provided with a spring shaft portion 226 and locking pieces 225 and 227. The spring shaft portion 226 protrudes leftward from the left surface of the first plate-like portion 221. Each of the locking pieces 225 and 227 protrudes leftward from the first plate-shaped portion 221 behind the spring shaft portion 226. The locking piece 225 is provided at the rear end portion of the upper surface of the first plate-like portion 221. The locking piece 227 is provided on the rear side of the lower surface of the first plate-like portion 221 with respect to the front-rear direction center.

  The spring shaft 226 is provided with a torsion spring 235 elastically deformed. The torsion spring 235 includes a first arm part 231 and a second arm part 232. The first arm portion 231 is locked to the locking piece 225 by urging the locking piece 225 from below. The second arm portion 232 is locked to the locking piece 227 by urging the locking piece 227 from above.

  Since the link member 220 is biased by the spring 220A, when the rotating part 215 is in the initial rotation position, the first arm part 231 contacts the pressing pin 215A from below. Hereinafter, the rotation position of the link member 220 connected to the rotation unit 215 in the initial rotation position via the first arm unit 231 is referred to as a “separate rotation position” (see FIG. 3).

  A protruding pin 238 is provided at the upper end of the second plate-like portion 222. The protruding pin 238 protrudes rightward from the second plate-like portion 222. When the link member 220 is in the separated rotation position, the protruding pin 238 is located at the front end position of the movable range.

  The protruding pin 238 is connected to the front end portion of the arm member 277 extending in the front-rear direction. The rear end portion of the arm member 277 is housed in the housing member 272 disposed behind the protruding pin 238. The housing member 272 is a box-like member that is mounted on the lower wall portion 152A of the holding member 102 so as to be movable in the front-rear direction and opens in the front-rear direction. A cutting blade 275 (see FIG. 11) is provided inside the housing member 272 and is connected to the rear end portion of the arm member 277. The cutting blade 275 is a plate-like body having a thickness in the left-right direction, and is biased forward by an attachment spring (not shown) provided inside the housing member 272.

  A blade portion 275A (see FIG. 11) extending linearly in the vertical direction is formed at the rear end portion of the cutting blade 275. The cutting blade 275 is movable relative to the housing member 272 in the front-rear direction. Therefore, the blade portion 275 </ b> A can protrude rearward from the housing member 272. When the protruding pin 238 is at the front end position of the movable range, the housing member 272, the arm member 277, and the cutting blade 275 are all at the front end position of the movable range. Hereinafter, the front end position of the movable range of the cutting blade 275 is referred to as a “separated position” (see FIG. 11A). The cutting blade 275 at the separation position is in front of the tube conveyance path 9C.

<2-4. Outline of Operation of Cutting Blade Moving Mechanism 200>
The cutting blade moving mechanism 200 before operation is in an initial state. When the cutting blade moving mechanism 200 is in the initial state, the rotation unit 215 is in the initial rotation position, the link member 220 is in the separation rotation position, and the cutting blade 275 is in the separation position. When the DC motor 104 is driven to rotate in the forward direction, the rotating unit 215 rotates in the first direction (arrow B1 direction). As the rotating portion 215 rotates in the first direction, the pressing pin 215A presses the first arm portion 231 counterclockwise as viewed from the left side. The link member 220 rotates in the third direction (arrow B3 direction), and the protruding pin 238 moves the arm member 277 backward. The arm member 277 and the housing member 272 move backward from the front end position of the movable range, and the cutting blade 275 moves backward from the separation position.

  On the other hand, when the cutting blade moving mechanism 200 is in the initial state, when the DC motor 104 is driven to rotate in the reverse direction, the rotating unit 215 rotates in the second direction (arrow B2 direction). The pressing pin 215A comes into contact with the first arm portion 231. The contact position between the pressing pin 215A and the first arm portion 231 is closer to the spring shaft portion 226 than when the rotating portion 215 rotates in the first direction. As the rotating portion 215 rotates in the second direction, the pressing pin 215A presses the first arm portion 231 counterclockwise as viewed from the left side. The link member 220 rotates in the third direction. The arm member 277 and the housing member 272 move backward from the front end position of the movable range, and the cutting blade 275 moves backward from the separation position.

<3. Cutting operation of cutting mechanism 100>
Hereinafter, the cutting operation of the cutting mechanism 100 will be described separately for the full cut operation of the tube 9 and the half cut operation of the tube 9. The cutting mechanism 100 before starting the cutting operation is in an initial state. When the cutting mechanism 100 is in the initial state, the cradle moving mechanism 120 is in the initial state, and the cutting blade moving mechanism 200 is in the initial state. When the cutting mechanism 100 is in the initial state, the tube 9 is disposed on the front surface of the covering portion 185 of the cradle 180 while being positioned at the reference position P by the bottom wall portion 112 of the positioning mechanism 111. In addition, in FIG. 11, sectional drawing seen from the left side of the receiving stand 180, the cutting blade 275, and the tube 9 is shown typically, and hatching of the rear-end part of the cutting blade 275 is abbreviate | omitted. (The same applies to FIGS. 12 to 14)

<3-1. Full cut operation of cutting mechanism 100>
With reference to FIGS. 3 to 5, 10, and 11, an operation in which the cutting mechanism 100 fully cuts the large diameter tube 9 </ b> A will be described. The DC motor 104 is driven to rotate in the reverse direction according to the drive control of the CPU (not shown) of the control board 19 (see FIG. 2). The rotating unit 215 (that is, the rotating member 106) rotates in the second direction (the direction of arrow B2 in FIG. 3), and the intermittent gear 136 rotates in the second rotating direction (the direction of arrow A2 in FIG. 4).

  As the rotating portion 215 rotates in the second direction, the link member 220 located at the separation position rotates in the third direction (the direction of arrow B3 in FIG. 3). The housing member 272 and the arm member 277 move backward from the front end position of the movable range, and the cutting blade 275 (see FIG. 11) moves forward from the separation position.

  On the other hand, the intermittent gear 136 rotates in the second rotation direction, so that the intermittent gear 136 meshes with the cam drive gear 156. The cam drive gear 156 and the cam member 160 are integrally rotated in the third rotation direction (the direction of arrow A3 in FIG. 5). The first cam surface 162A, the second cam surface 162B, and the third cam surface 162C sequentially slide with respect to the contact portion 179, whereby the cradle 180 moves from the half cut position to the full cut position (FIG. 10). reference). The cradle 180 moves to the full cut position while the cutting blade 275 is moving forward from the separation position.

  As shown in FIGS. 11B and 11C, the DC motor 104 is continuously rotated in the reverse direction, so that the housing member 272 contacts the large-diameter tube 9A from the front before the cutting blade 275. (Not shown). The large-diameter tube 9A is crushed and deformed, and the accommodation member 272 is restricted from moving backward. When the DC motor 104 continues to rotate in the forward direction, the arm member 277 (see FIG. 3) biases the cutting blade 275 (see FIG. 11) backward. The cutting blade 275 moves rearward relative to the housing member 272 against the biasing force of a mounting spring (not shown). The blade portion 275A of the cutting blade 275 protrudes from the rear end portion of the housing member 272, and sandwiches the large-diameter tube 9A with the second contact surface 182 (see FIG. 11B).

  The blade portion 275A moves forward while tearing the tube 9, and the cutting blade 275 moves to the contact position (see FIG. 11C). The contact position is the front-rear direction position of the cutting blade 275 where the blade portion 275A contacts the front surface of the covering portion 185. When the full-cut operation is performed, the blade portion 275A comes into contact with the second contact surface 182 when the cutting blade 275 moves to the contact position. By moving the cutting blade 275 to the contact position, the large-diameter tube 9A is fully cut (see FIG. 11C).

  Note that the intermittent gear 136 and the cam drive gear 156 remain engaged with each other until the cutting blade 275 moves to the contact position after the cradle 180 moves to the full cut position. In this case, the third cam surface 162 </ b> C rotating in the third rotation direction slides with respect to the contact portion 179. Therefore, the cradle 180 is not displaced from the full cut position.

  After the cutting blade 275 moves to the contact position, the DC motor 104 switches the direction of rotational driving from the reverse direction to the forward direction. The rotating unit 215 (that is, the rotating member 106) rotates in the first direction (the direction of arrow B1 in FIG. 3), and the intermittent gear 136 rotates in the first rotating direction (the direction of arrow A1 in FIG. 4).

  As the rotating portion 215 rotates in the first direction, the link member 220 rotates in the fourth direction (the direction of arrow B4 in FIG. 3), and the cutting blade 275 moves forward from the contact position. When the rotation unit 215 returns to the initial rotation position, the link member 220 returns to the separation rotation position. The housing member 272 and the arm member 277 return to the front end position of the movable range, and the cutting blade 275 returns to the separation position.

  On the other hand, when the intermittent gear 136 rotates in the first direction (the direction of arrow A1 in FIG. 4), the cam member 160 rotates in the fourth direction (the direction of arrow A4 in FIG. 10). The contact portion 179 urged rightward by the coil springs 171 and 173 (see FIG. 5) slides sequentially with respect to the third cam surface 162C, the second cam surface 162B, and the first cam surface 162A. The contact position between the contact portion 179 and the cam surface 162 is displaced to the right, and the cradle 180 moves from the full cut position toward the half cut position. When the cutting blade 275 returns to the separation position, the cam member 160 returns to the initial rotation position, and the cradle 180 returns to the half-cut position until the cam member 160 returns to the initial rotation position. The cutting mechanism 100 returns to the initial state and ends the full cut operation.

  The operation of the cutting mechanism 100 that fully cuts the small-diameter tube 9B is the same as that when the large-diameter tube 9A is fully cut, and thus detailed description thereof is omitted.

<3-2. Half-cut operation of cutting mechanism 100>
The operation of the cutting mechanism 100 half-cutting the tube 9 will be described with reference to FIGS. 3, 4, 8, 9, 12, and 13. Hereinafter, an operation in which the large-diameter tube 9A is half-cut when the cradle 180 is in the first half-cut position will be described. In addition, about the operation | movement which overlaps with the full cut operation | movement mentioned above, description is simplified.

  The DC motor 104 is driven to rotate in the forward direction in accordance with drive control of a CPU (not shown) of the control board 19 (see FIG. 2). The intermittent gear 136 rotates from the initial rotation position in the first rotation direction (in the direction of arrow A1 in FIG. 4), and the rotating unit 215 (that is, the rotation member 106) rotates from the initial rotation position in the first direction (in the direction of arrow B1 in FIG. 3). ).

  When the intermittent gear 136 rotates in the first rotation direction, the intermittent gear 136 and the cam drive gear 156 do not mesh with each other. Therefore, the intermittent gear 136 idles. The cradle 180 maintains a state of being stopped at the first half-cut position (see FIG. 8A) while being biased leftward by the coil springs 171 and 173.

  On the other hand, the rotation part 215 rotates in the first direction from the initial rotation position, whereby the link member 220 rotates in the third direction (in the direction of arrow B3 in FIG. 3) from the separation rotation position, and the cutting blade 275 moves in the separation position ( It moves backward from FIG. 12 (a).

  The cutting blade 275 sandwiches the large-diameter tube 9A between the cutting blade 275 and the cradle 180 at the first half-cut position. The large-diameter tube 9A is crushed and deformed, and a part of the circumferential direction enters the first recess 191 (see FIG. 12B). As the DC motor 104 continues to rotate in the forward direction, the blade portion 275A moves rearward while tearing the large-diameter tube 9A. The cutting blade 275 moves to the contact position. When the half-cut operation is performed, when the cutting blade 275 moves to the contact position, the blade portion 275A comes into contact with the two first contact surfaces 181. At this time, the facing surface 187B faces the blade portion 275A that is in contact with the two first contact surfaces 181 with the through hole 189 interposed therebetween. As the cutting blade 275 moves to the contact position, the large-diameter tube 9A is half-cut leaving the part that has entered the first recess 191 (see FIG. 12C).

  Note that the intermittent gear 136 idles in the first rotational direction without meshing with the cam drive gear 156 until the cutting blade 275 moves to the contact position.

  After the cutting blade 275 moves to the contact position, the DC motor 104 switches the direction of rotational driving from the normal direction to the reverse direction. The rotating part 215 rotates in the second direction (arrow B2 direction in FIG. 3), and the intermittent gear 136 rotates in the second rotation direction (arrow A2 direction in FIG. 4). When the rotating unit 215 returns to the initial rotation position, the cutting blade 275 returns to the separation position. When the cutting blade 275 returns to the separation position, the intermittent gear 136 returns to the initial rotation position. The cutting mechanism 100 returns to the initial state and ends the half-cut operation.

  The user takes out the half-cut large-diameter tube 9 </ b> A from the tube mounting portion 40. When the user stretches the large-diameter tube 9A in the stretching direction, the large-diameter tube 9A is torn off at the half-cut site.

  The case where the small diameter tube 9B (see FIG. 12A) is half cut is the same as the case where the large diameter tube 9A is half cut. That is, when the cutting blade 275 moves to the contact position, the small-diameter tube 9B is half-cut leaving a portion that has entered the first recess 191.

  Next, with reference to FIG. 13, the operation of half-cutting the large-diameter tube 9A when the cradle 180 is in the second half-cut position will be described. In addition, description of the operation | movement which overlaps with the half cut operation | movement in case the receiving stand 180 exists in a 1st half cut position is abbreviate | omitted.

  With the cradle 180 in the second half-cut position, the cutting blade 275 moves from the separation position to the contact position. When the cutting blade 275 moves to the contact position, the blade portion 275A comes into contact with and faces the two first contact surfaces 181 and the front surface 184D of the standing portion 184. The large-diameter tube 9A is half-cut, leaving the part that has entered the second recess 192.

  The second length (dimension L2) of the second recess 192 is shorter than the outer diameter of the large diameter tube 9A. Therefore, the portion where the large-diameter tube 9A enters the recess 190 is smaller than when the cradle 180 is in the first half-cut position. More specifically, in the large-diameter tube 9A, the circumferential length that enters the recess 190 is shortened. Therefore, the half cut amount which is the amount cut by the blade portion 275A to be half cut in the tube 9 is increased. Thus, the half-cut large-diameter tube 9A is easily torn off.

  In addition, the depth of the 1st recessed part 191 and the depth of the 2nd recessed part 192 are the same. Therefore, in the case where the cradle 180 is in the first half-cut position and the case where it is in the second half-cut position, the length in the front-rear direction of the portion of the large-diameter tube 9A that enters the recess 190 is difficult to shorten. . That is, the thickness of the portion of the large-diameter tube 9A that remains without being half-cut is not easily reduced. Therefore, the cutting mechanism 100 can suppress the thickness of the portion of the large diameter tube 9A remaining without being half cut from being excessively thin while changing the half cut amount of the large diameter tube 9A to be half cut.

  An operation in which the small-diameter tube 9B is half-cut instead of the large-diameter tube 9A when the cradle 180 is in the second half-cut position will be described. The small-diameter tube 9B is half-cut, leaving the part that has entered the second recess 192. The first length and the second length are both longer than the outer diameter of the small diameter tube 9B. Therefore, the half cut amount of the small-diameter tube 9B is substantially the same regardless of whether the cradle 180 is in the first half cut position or the second half cut position.

  Next, an operation in which the large-diameter tube 9A is half-cut when the cradle 180 is in the third half-cut position will be described. In the following description, detailed illustration is omitted. The large-diameter tube 9A is half-cut by the cutting blade 275 leaving a portion that has entered the third recess 193 (see FIG. 6). The third length of the third recess 193 (dimension L3 in FIG. 6) is shorter than the second length of the second recess 192 (dimension L2 in FIG. 6). Accordingly, the portion of the large-diameter tube 9A that enters the recess 190 is further reduced as compared with the case where the cradle 180 is in the second half-cut position. Accordingly, the half-cut large-diameter tube 9A is further easily torn.

  If the small diameter tube 9B is arranged instead of the large diameter tube 9A when the cradle 180 is in the third half-cut position, the small diameter tube 9B has a portion that has entered the third recess 193 (see FIG. 6). Leave half cut. The third length is shorter than the outer diameter of the small diameter tube 9B. Therefore, the half-cut amount for the small-diameter tube 9B is larger than when the cradle 180 is at the first half-cut position or the second half-cut position. Therefore, the small-diameter tube 9B that has been half-cut is easily torn.

<4. Example of effects of the present disclosure>
As described above, the cutting mechanism 100 switches the half-cut position of the cradle 180 to any one of the first half-cut position, the second half-cut position, and the third half-cut position, thereby enabling the large-diameter tube. The 9A half-cut amount can be adjusted. The depth of the recess 190 is substantially uniform over the vertical direction and the horizontal direction. Therefore, the thickness of the large-diameter tube 9A that enters the recess 190 is not limited to the case where the cradle 180 is located at any of the first half-cut position, the second half-cut position, and the third half-cut position. It is hard to become thin. Therefore, the cutting mechanism 100 can suppress the half-cut large-diameter tube 9A from being easily torn. From the above, the cutting mechanism 100 can adjust the half-cut amount of the tube 9 while suppressing the tube 9 from being easily broken.

  The user can visually recognize the cradle 180 in the half cut position. By visually recognizing the vertical lengths of the first concave portion 191, the second concave portion 192, and the third concave portion 193, the user can easily grasp the half cut amount of the tube 9 sensuously. Therefore, the user can easily execute the adjustment of the half cut amount of the tube 9 without hesitation as compared with the case where the half cut amount of the tube 9 is numerically input to the operation unit 17, for example. Therefore, the cutting mechanism 100 can improve the operability of adjusting the half cut amount of the tube 9.

  The first recess 191, the second recess 192, and the third recess 193 are all disposed on the left side of the specific inner right surface 185D extending in the vertical direction. The lower ends of the first recess 191, the second recess 192, and the third recess 193 are each formed by an inner lower surface 185A extending in the left-right direction. Each upper end of the second recess 192 and the third recess 193 is formed by an inclined surface 184C that extends upward toward the left, and the upper end of the first recess 191 is substantially the same as the left end of the inclined surface 184C. Formed by an inner upper surface 185C at a height. With the above configuration, the first length, the second length, and the third length are longer than the specific inner right surface 185D. Therefore, the tube 9 that is half-cut easily enters the recess 190. Therefore, the cutting mechanism 100 can stabilize the adjustment of the half cut amount of the tube 9.

  The reference position P is between the lower end of the inclined surface 184C and the inner lower surface 185A in the vertical direction. Regardless of whether the cut object to be half-cut is the large-diameter tube 9A or the small-diameter tube 9B, the tube 9 positioned by the positioning mechanism 111 easily enters the recess 190. Therefore, the cutting mechanism 100 can stably perform half-cutting regardless of the size of the object to be cut.

  The tube 9 is positioned at the reference position P only by contacting the bottom wall 112 of the positioning mechanism 111 from above. Therefore, the cutting mechanism 100 can simplify the means for positioning the tube 9 as the cutting object at the reference position P.

  The user can switch the horizontal position of the cradle 180 to any of the first half-cut position, the second half-cut position, and the third half-cut position simply by rotating the lever 140. In this case, since the coil springs 171 and 173 urge the cradle 180 to the right, the specific wall portion 186C easily comes into contact with the specific end surface 177. Therefore, the user can easily switch the cradle 180 to any one of the first half-cut position, the second half-cut position, and the third half-cut position.

  The lever 140 is restricted from rotating around the support bar 161 by a force generated by the contact between the specific accommodation portion and the protrusion 152D. Therefore, the cutting mechanism 100 only includes a simple mechanism and suppresses the lever 140 at any one of the first rotation position, the second rotation position, and the third rotation position from rotating against the user's intention. it can.

  The cutting mechanism 100 performs a full cut operation in addition to the half cut operation. Therefore, the cutting mechanism 100 can diversify the method of cutting the tube 9.

  The movement of the cradle 180 from the half cut position to the full cut position accompanying the rotational drive of the DC motor 104 in the reverse rotation direction is realized by a configuration in which the cam surface 162 of the cam member 160 slides on the contact portion 179. Therefore, the cutting mechanism 100 can simplify the configuration for moving the cradle 180 from the half cut position to the full cut position.

  In the above embodiment, the cutting mechanism 100 is an example of the “cutting device” of the present invention. The DC motor 104 and the cutting blade moving mechanism 200 are examples of the “cutting blade moving means” in the present invention. The cradle moving mechanism 120 is an example of the “cradle moving means” in the present invention. The inner lower surface 185A is an example of the “first surface” in the present invention. The inclined surface 184C is an example of the “second surface” in the present invention. The specific inner right surface 185D is an example of the “third surface” in the present invention. The tube 9 is an example of the “cutting object” in the present invention. The positioning mechanism 111 is an example of the “positioning means” in the present invention. The bottom wall portion 112 is an example of the “fixed wall portion” in the present invention. The second specific end surface 177B is an example of the “specific end surface” in the present invention. The support rod 161 is an example of the “first support member” in the present invention. The lever 140 is an example of the “rotating member” in the present invention. The coil springs 171 and 173 are examples of the “elastic member” of the present invention. The second specific end surface is an example of the “specific sliding surface” in the present invention. The right wall portion 152C is an example of the “opposing wall portion” in the present invention. The support member 152 is an example of the “second support member” in the present invention. The extending portion 144 is an example of the “contact wall portion” in the present invention. The first accommodating portion 145A and the second accommodating portion 145B are examples of the “accommodating portion” in the present invention. The DC motor 104 is an example of the “driving means” in the present invention. The second cam surface 162B is an example of the “cam surface” in the present invention. The print head 61 is an example of the “printing unit” in the present invention.

  The right side is an example of “one side” of the present invention. The first half cut is an example of the “first facing position” in the present invention. The second half cut is an example of the “second opposing position” in the present invention. The full cut position is an example of the “third facing position” in the present invention. The reference position P is an example of the “predetermined position” in the present invention. The forward direction is an example of the “specific direction” in the present invention. The vertical direction is an example of the “adjacent direction” in the present invention. The left-right direction is an example of the “predetermined direction” in the present invention. The substantially vertical direction is an example of the “first direction” in the present invention. The left direction is an example of the “second direction” in the present invention. The right direction is an example of “one direction” in the present invention. The third rotation direction is an example of the “third rotation direction” in the present invention. The second predetermined distance is an example of the “predetermined distance” in the present invention.

<5. Remarks>
In addition, this invention is not limited to the said embodiment, A various deformation | transformation is possible. The cutting mechanism 100 may be a device that performs a cutting operation on a sheet material instead of a device that performs a cutting operation on the tube 9. The cutting blade 275 may not be configured to move from the separation position to the contact position when the pressing pin 215A presses the first arm portion 231. For example, a gear (not shown) that meshes with the motor gear 104A may be fixed to the link shaft portion 223. Even in this case, the cutting blade 275 can move from the separation position to the contact position as the DC motor 104 rotates. Further, the cutting mechanism 100 may be a mechanism that performs only a half-cut operation without performing a full-cut operation.

  The half cut position may not include the first half cut position, for example. In this case, the cradle 180 moves between the second half cut position and the third half cut position. In this case, the third half-cut position of the cradle 180 is an example of the “first opposing position” in the present invention, and the third rotational position of the lever 140 is an example of the “first rotational position” in the present invention.

  Instead of being formed so that the depth is uniform in the left-right direction and the up-down direction, the recess 190 may be formed so that the depth becomes shallower from left to right, for example. . Even in this case, the cutting mechanism 100 can adjust the half-cut amount of the tube 9 by switching the arrangement position of the cradle 180 to either the first half-cut position or the second half-cut position.

  The standing portion 184 may not have a shape in which the inclined surface 184C is connected to the upper end of the specific inner right surface 185D. For example, the standing portion 184 may have a shape in which the inclined surface 184C linearly extends obliquely leftward and upward from the right end of the inner lower surface 185A. Even in this case, the cutting mechanism 100 is switched to any one of the first half-cut position, the second half-cut position, and the third half-cut position so that the cutting mechanism 100 can Cut amount can be adjusted.

  The configuration of the cradle moving mechanism 120 is not limited to a configuration in which the rotation position of the lever 140 is switched in stages to any one of the first rotation position, the second rotation position, and the third rotation position. For example, a configuration in which the cradle 180 at the half-cut position is continuously displaced in the left-right direction according to the rotation amount of the lever 140 may be employed. In this case, the sliding surface 146 is a surface that faces leftward and extends to the left along the rotation direction about the support bar 161 instead of being a surface facing clockwise in a right side view. Also good. The sliding surface 146 slides with the first specific end surface 177A, so that the cradle 180 can move between the first half-cut position and the second half-cut position. In this case, the cradle moving mechanism 120 does not need to include the protruding portion 152D and the extending portion 144.

DESCRIPTION OF SYMBOLS 1 Printing apparatus 9 Tube 61 Print head 100 Cutting mechanism 104 DC motor 105 Power transmission part 111 Positioning mechanism 112 Bottom wall part 120 Receptacle moving mechanism 140 Lever 144 Extension part 145 Contact surface 145A First accommodating part 145B Second accommodating part 146 Sliding surface 150 Receiving support portion 152 Support member 152C Right wall portion 152D Protruding portion 160 Cam member 161 Support rod 162B Second cam surfaces 171 and 173 Coil spring 177B Second specific end surface 179 Contact portion 180 Receiving stand 181 First contact surface 182 Second contact surface 184C Inclined surface 185A Inner lower surface 185D Specific inner right surface 186C Specific wall portion 187B Opposing surface 190 Recess 191 First recess 192 Second recess 200 Cutting blade moving mechanism 275 Cutting blade 275A Blade portion P Reference position

Claims (9)

A cutting blade having a blade portion;
A receiver having a first contact surface that is a surface that can be opposed to and contacted with the blade portion, and a recess that is adjacent to the first contact surface and opens in a specific direction toward the first contact surface. A pedestal, the recess extending across the specific direction and having a facing surface facing the blade portion in contact with the first contact surface;
A cutting blade moving means for moving the cutting blade between a contact position where the blade portion is in contact with the first contact surface and a separation position where the blade portion is separated from the first contact surface;
Means for moving the cradle between a first facing position and a second facing position along a predetermined direction intersecting each of the first contact surface and the adjacent direction of the recess and the specific direction, The first facing position is a position at which the first contact surface and the facing surface are opposed to the blade portion of the cutting blade at the contact position, and the second facing position is the first facing position. A pedestal moving means which is a position different from the facing position, and wherein the first contact surface and the facing surface are respectively opposed to the blade portion of the cutting blade in the contact position;
The recess is
In the case where the cradle is in the first facing position, a first recess that is in the same position in the predetermined direction as a position where the blade portion contacts the first contact surface;
In the case where the cradle is in the second facing position, including a position where the blade portion contacts the first contact surface and a second recess located at the same position in the predetermined direction,
The cutting apparatus according to claim 1, wherein a first length of the first recess in the adjacent direction and a second length of the second recess in the adjacent direction are different from each other. The recess is
A first surface standing in the specific direction from the facing surface, and forming one end in the adjacent direction of at least one of the first recess and the second recess;
A surface that stands up in the specific direction from the facing surface and forms the other end in the adjacent direction of at least one of the first recess and the second recess, and extends across the predetermined direction. The second side,
A third surface that is erected in the specific direction from one end in the predetermined direction of the opposing surface, and that connects the one end of each of the first surface and the second surface; The cutting device according to claim 1, comprising: Positioning means for positioning a cutting object conveyed toward the cradle at the first facing position or the second facing position at a predetermined position in the adjacent direction;
The cutting according to claim 2, wherein the predetermined position is a position displaced toward the first surface from a position where the third surface and the second surface are connected in the adjacent direction. apparatus.   The positioning means is fixed to the upstream side in the direction in which the cutting object is transported from the cradle at the first opposing position or the second opposing position, and the first of the adjacent directions is the first The cutting device according to claim 3, further comprising a fixed wall portion facing in a direction from one surface toward the second surface. The cradle includes a specific wall portion that extends across the predetermined direction and has a specific end surface formed on one side of the predetermined direction.
The cradle moving means includes
A first support member for supporting the cradle movably in the predetermined direction;
A member that is provided at a position aligned with the specific wall portion in the predetermined direction, and is rotatably supported by the first support member between a first rotation position and a second rotation position, and with rotation A rotating member having a sliding surface that slides relative to the specific end surface;
An elastic member that urges the receiving base in a direction from the specific wall portion toward the rotating member in the predetermined direction;
A force that restricts movement of the first rotation position and the second rotation position to the other rotation position is applied to the rotation member at one of the first rotation position and the second rotation position. And providing means for
The specific sliding surface which is at least one of the specific end surface and the sliding surface is a predetermined direction along a direction parallel to a direction in which the sliding surface slides with respect to the specific end surface. Extending in one direction,
The length in the predetermined direction of the specific sliding surface is the same as a first cradle moving distance in which the cradle moves from the first facing position to the second facing position. 5. The cutting device according to any one of 4 to 4. The giving means is
A second support member that has an opposing wall portion that faces the specific wall portion across the rotating member, and supports the first support member;
A projecting portion projecting from the facing wall portion toward the specific wall portion;
A wall portion provided in the rotating member and extending in a first direction intersecting with the rotation direction of the rotating member, the contact wall portion having a contact surface that contacts the protruding portion,
6. The cutting apparatus according to claim 5, wherein a receiving portion that is recessed so that a part of the protruding portion can be received is provided side by side in the first direction on the contact surface. The cradle includes a second contact surface arranged along the predetermined direction with respect to each of the first contact surface and the recess, and facing the specific direction,
The cradle moving means includes
The second base between the first counter position and the third counter position where the second contact surface faces and contacts the blade portion of the cutting blade in the contact position. A support mechanism for supporting the movement via the facing position;
Driving means for driving;
A power transmission unit that transmits power that moves to the third facing position with respect to the cradle at the first facing position or the second facing position in accordance with the driving of the driving means; The cutting device according to any one of claims 1 to 6, characterized in that The power transmission unit is a member that can rotate around an axis extending in parallel with the predetermined direction as the driving unit is driven, and the first opposing position to the third opposing position in the predetermined direction. A cam member having a cam surface that faces the second direction toward the second side and extends toward the second direction along the rotational direction about the axis;
A contact portion provided on the pedestal and contacting the rotating cam surface from one side of the rotation direction of the cam member,
The predetermined distance, which is the distance along the predetermined direction from one end of the cam surface to the other end in the rotation direction around the axis, is such that the cradle is from the first facing position to the third facing position. The cutting apparatus according to claim 7, wherein the cutting apparatus is equal to a moving distance of the third receiving table. A cutting device according to any of claims 1 to 8,
A printing apparatus comprising: a printing unit that performs printing on a printing medium conveyed toward the cutting apparatus.

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