Cutter and recorder

Patent metadata

Field	Value
Publication number	US-9364964-B2
Application number	US-86008710-A
Country	US
Kind code	B2
Filing date	Aug 20, 2010
Priority date	Aug 27, 2009
Publication date	Jun 14, 2016
Grant date	Jun 14, 2016

Abstract

A cutter includes a cutting part including a movable blade and a fixed blade, the movable blade being configured to be moved by a drive mechanism; an operation part configured to cause an edge of the movable blade to move in an arc by causing the drive mechanism to be driven; and a blade pressure generation part configured to cause a blade pressure to be generated between the movable blade and the fixed blade.

First claim

What is claimed is:

1. A recorder, comprising:
a printing unit, wherein the printing unit includes
a print head configured to perform printing on a recording medium; and
a platen roller configured to rotate on a platen rotary shaft to draw and press the recording medium against the print head;

a shaft support member that rotatably supports the platen rotary shaft;
a cutter; and
a drive mechanism for driving the cutter,
wherein the cutter includes
a movable blade that is coaxially rotatable with the platen rotary shaft, the movable blade including
a body part on which a blade edge is formed; and
an arm part that extends from a longitudinal end of the body part, that is rotatably attached to the platen rotary shaft, and that is connected to the drive mechanism to be driven to rotate on the platen rotary shaft so as to move the blade edge in an arc of a circle concentric with the platen rotary shaft;

a fixed blade configured to form a cutting part by coming into sliding contact with the movable blade that has moved in the arc; and
a blade pressure generation part configured to generate a blade pressure between the movable blade and the fixed blade by urging at least one of the movable blade and the fixed blade toward the other of the movable blade and the fixed blade in the cutting part, and wherein the body part of the movable blade is curved along the arc.

2. The recorder as claimed in claim 1 , further comprising:
a first module including the fixed blade; and
a second module including the movable blade, the second module being configured to rotate on a first rotation shaft to be integrated with and separated from the first module,
wherein the first module and the second module are configured to be integrated to form the cutting part.

3. The recorder as claimed in claim 2 , further comprising:
a lock part configured to lock the integrated first and second modules so as to prevent a separation of the first module and the second module,
wherein the first module includes a fixed blade block including the fixed blade,
the fixed blade block is configured to rotate on a second rotation shaft in a direction toward the second module and in a direction away from the second module, and
a rotation of the fixed blade block causes the lock part to lock the integrated first and second modules.

4. The recorder as claimed in claim 3 , wherein the rotation of the fixed blade block in the direction away from the second module unlocks and separates the locked first and second modules.

5. The recorder as claimed in claim 2 , further comprising:
a retreating operation part configured to, in response to an operation thereof, retract the fixed blade to a position where the fixed blade is prevented from contacting the movable blade when the first module and the second module are separated.

6. The recorder as claimed in claim 5 , further comprising:
an end returning part configured to return an end of an object of cutting cut by the movable blade to a position where cutting is performable by the cutting part.

7. The recorder as claimed in claim 1 ,
wherein the blade pressure generation part is an elastic member having a first end attached to the platen rotary shaft and having a second end attached to the fixed blade.

8. The recorder as claimed in claim 1 , further comprising:
an end returning part configured to return an end of an object of cutting cut by the movable blade to a position where cutting is performable by the cutting part.

9. The recorder as claimed in claim 1 , wherein the blade edge of the movable blade has one of a flat shape and an arc shape along the arc.

10. The recorder as claimed in claim 2 , further comprising:
a detection part configured to detect a presence or absence of the movable blade in a detection region; and
a recognition part configured to recognize an integration of the first module and the second module if there is an absence of a driving of the drive mechanism and the detection part detects the presence of the movable blade in the detection region after detecting the absence of the movable blade in the detection region.

11. The recorder as claimed in claim 10 , wherein the recognition part is configured to recognize a presence of the movable blade when:
the recognition part recognizes the integration of the first module and the second module;
the detection part detects the absence of the movable blade in the detection region after the drive mechanism is driven to move the movable blade from a first position, where the movable blade is detected by the detection part, to a second position, where the movable blade is not detected by the detection part; and
the detection part detects the presence of the movable blade in the detection region after the drive mechanism is driven to move the movable blade back from the second position to the first position.

12. The recorder as claimed in claim 11 , wherein the recognition part is configured to recognize a completion of a cutting process of the cutting part when:
the recognition part recognizes the presence of the movable blade;
the detection part detects the absence of the movable blade in the detection region after the drive mechanism is driven to move the movable blade from the first position to a third position, where the movable blade is not detected by the detection part; and
the detection part detects the presence of the movable blade in the detection region after the drive mechanism is driven to move the movable blade back from the third position to the first position.

13. The recorder as claimed in claim 12 , wherein the recognition part is configured to recognize a malfunction of the movable blade if the detection part detects the presence of the movable blade in the detection region in response to the drive mechanism being driven to move the movable blade from the first position to the second position or the third position; or the detection part detects the absence of the movable blade in the detection region in response to the drive mechanism being driven to move the movable blade back from the second position or the third position to the first position.

14. The recorder as claimed in claim 10 , wherein the recognition part is configured to recognize a separation of the first module and the second module if the detection part detects the absence of the movable blade in the detection region when there is no driving of the drive mechanism by the operation part.

15. The recorder as claimed in claim 1 , wherein the arm part is driven to rotate on the platen rotary shaft independent of a rotation of the platen rotary shaft.

Assignees

• Watanabe Sumio
• Mori Yukihiro
• Tsuchiya Masahiro
• Fujitsu Component Ltd

Inventors

• Watanabe Sumio
• Mori Yukihiro
• Tsuchiya Masahiro

Classifications

• B26D7/00

  Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting (cutters B26D1/00; arrangements for guiding hand cutting tools B26B29/06; punching tools or dies, cutting-out knives or dies B26F) · CPC title

• B41J11/706

  using a cutting tool mounted on a reciprocating carrier · CPC title

• Y10T83/8812

  Cutting edge in radial plane · CPC title

• B26D5/00

  Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting · CPC title

• B26D5/34

  scanning being effected by a photosensitive device · CPC title