Cutting apparatus and printing apparatus

Patent metadata

Field	Value
Publication number	US-10124609-B2
Application number	US-201615272708-A
Country	US
Kind code	B2
Filing date	Sep 22, 2016
Priority date	Sep 28, 2015
Publication date	Nov 13, 2018
Grant date	Nov 13, 2018

Abstract

In order to reliably cut a sheet even when the width of the sheet is changed while shortening cutting time, the position of an end portion of the sheet is sensed and a cutting range is set according to the sensed position of the end portion.

First claim

What is claimed is:

1. A cutting apparatus comprising:
a cutter unit having a cutter blade, the cutter unit being configured to reciprocate with the cutter blade from a first end portion of a sheet through a second end portion of the sheet to cut the sheet;
a sensing unit configured to sense a position of at least the second end portion of the sheet; and
a control unit configured to control movement of the cutter unit such that a return movement of the cutter unit occurs from a reverse position that is set in accordance with a sensing result of the sensing unit,
wherein the reverse position is settable to a position in which the second end portion remains in the cutter unit.

2. The cutting apparatus according to claim 1 ,
wherein the reverse position is selectable from (a) a first position where the second end portion remains in the cutter unit and (b) a second position where the second end portion does not remain in the cutter unit.

3. The cutting apparatus according to claim 1 ,
wherein the cutter unit reciprocates between a stand-by position near the first end portion and the reverse position near the second end portion, and
the cutter unit cuts the sheet while moving to the reverse position from the stand-by position.

4. The cutting apparatus according to claim 3 ,
wherein the stand-by position is set in accordance with a sensing result of the sensing unit.

5. The cutting apparatus according to claim 2 ,
wherein the reverse position is set to be the first position or the second position, according to at least one of a width of the sheet and a kind of the sheet.

6. The cutting apparatus according to claim 1 ,
wherein the sensing unit is mounted on a printing carriage for printing, the printing carriage being different from the cutter unit and being movable in a moving direction of the cutter unit.

7. The cutting apparatus according to claim 1 , further comprising:
a detecting unit configured to detect a moving distance of the cutter unit,
wherein the cutter unit moves on the basis of outputs of the detecting unit and the sensing unit.

8. The cutting apparatus according to claim 1 , wherein the cutter unit includes:
a push-out portion that pushes out a cut piece of the sheet in a conveying direction of the sheet when the cutter blade cuts off the sheet to produce the cut piece.

9. The cutting apparatus according to claim 8 ,
wherein the second end portion is positioned between a cutting portion of the cutter blade and the push-out portion when the cutter unit is positioned at the reverse position.

10. The cutting apparatus according to claim 8 ,
wherein the cutter unit includes:
a first support surface configured to support the sheet, the first support surface being positioned on a downstream side, along the conveying direction, of a cutting portion of the cutter unit, and being formed at a position closer to a stand-by position than the cutting portion; and
a second support surface configured to support the sheet, the second support surface being positioned on the downstream side, along the conveying direction, of the cutting portion, and being formed at a position closer to the reverse position than the cutting portion.

11. The cutting apparatus according to claim 10 ,
wherein the first support surface is substantially parallel to a surface of the sheet, and
the second support surface extends in the conveying direction.

12. The cutting apparatus according to claim 10 ,
wherein the first support surface and the second support surface continue to each other.

13. The cutting apparatus according to claim 10 ,
wherein extension planes of the respective first and second support surfaces cross each other at a position on the downstream side of the cutting portion along the conveying direction.

14. A printing apparatus comprising:
the cutting apparatus according to claim 1 ; and
a printing unit configured to print an image on the sheet.

15. A printing apparatus comprising:
a conveying unit configured to convey a sheet in a conveying direction;
a printing head configured to print an image on the sheet;
a carriage configured to mount the printing head and to move in a direction crossing the conveying direction;
a cutter unit positioned at a downstream side of the printing head in the conveying direction and configured to move in a first direction crossing the conveying direction and a second direction opposite to the first direction when a cutting request is received, the first direction being a direction from a first end of the sheet toward a second end of the sheet, the cutter unit cutting the sheet when the cutter unit moves in the first direction;
a sensing unit mounted on the carriage and configured to sense a position of the second end of the sheet; and
a determination unit configured to determine a stop position, according to the position of the second end of the sheet sensed by the sensing unit, at which the cutter unit stops movement in the first direction.

16. The printing apparatus according to claim 15 , wherein the determination unit determines a reverse position at which the cutter unit stops movement in the first direction and reverses toward the second direction.

17. A printing apparatus comprising:
a conveying unit configured to convey a sheet in a conveying direction;
a printing head configured to print an image on the sheet;
a carriage configured to mount the printing head and to move in a direction crossing the conveying direction;
a cutter unit positioned at a downstream side of the printing head in the conveying direction and configured to move in a first direction crossing the conveying direction and a second direction opposite to the first direction when a cutting request is received, the first direction being a direction from a first end of the sheet toward a second end of the sheet, the cutter unit cutting the sheet in a case where the cutter unit moves in the first direction;
a sensing unit configured to sense a position of the second end of the sheet; and
a determination unit configured to determine a stop position, according to the position of the second end of the sheet sensed by the sensing unit after the cutting request is received, at which the cutter unit stops the moving in the first direction.

18. The printing apparatus according to claim 17 , wherein the determination unit determines a reverse position at which the cutter unit stops movement in the first direction and reverses toward the second direction.

19. The printing apparatus according to claim 17 , wherein a cutting position of the cutter unit is positioned at a downstream side of the second end of the sheet in the first direction in a case where the cutter unit stops at the stop position.

20. The printing apparatus according to claim 15 , wherein the stop position is settable to a position in which the second end portion remains in the cutter unit.

21. The printing apparatus according to claim 17 , wherein the stop position is settable to a position in which the second end portion remains in the cutter unit.

Assignees

• Canon Kk

Inventors

• Kikuchi Tetsuo
• Wakayama Naoki
• Masuda Shuichi
• Nagashima Masakazu
• Anayama Daiki
• Ohashi Takakazu

Classifications

• B26D1/08

  of the guillotine type · CPC title

• B41J11/70 Primary

  cutting perpendicular to the direction of paper feed · CPC title

• B26D5/32

  with the record carrier formed by the work itself · CPC title

• B26D1/185

  for thin material, e.g. for sheets, strips or the like · CPC title

• B41J2/01

  Ink jet · CPC title