Printer and cutter device of printer

Patent metadata

Field	Value
Publication number	US-10875327-B2
Application number	US-201916567772-A
Country	US
Kind code	B2
Filing date	Sep 11, 2019
Priority date	Sep 11, 2018
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

A printer includes a first blade configured to be movable between a standby position and a cutting position, a second blade configured to contact the first blade located in the cutting position, a drive mechanism configured to drive the first blade, and a first elastic member configured to pull the first blade located in the cutting position. When the first blade is located in the cutting position, the first elastic member pulls the first blade in a direction in which the first blade moves to the standby position, and pulls the first blade in a direction in which the first blade approaches the second blade.

First claim

What is claimed is:

1. A printer, comprising:
a first blade configured to be movable between a standby position and a cutting position, and configured to cut a sheet at the cutting position;
a second blade configured to contact the first blade located at the cutting position;
a drive mechanism configured to drive the first blade; and
a first elastic member configured to pull the first blade located at the cutting position,
wherein when the first blade is located at the cutting position, the first elastic member pulls the first blade in a direction in which the first blade moves from the cutting position to the standby position, and pulls the first blade in a direction in which the first blade approaches the second blade.

2. The printer according to claim 1 , wherein
the drive mechanism further includes an engagement portion,
the first blade moves from the standby position to the cutting position by engaging with the engagement portion, and
when the first blade is disengaged from the engagement portion after moving to the cutting position, the first blade moves from the cutting position to the standby position.

3. The printer according to claim 1 , wherein
the first elastic member is a tension spring that is hung on a hook portion provided at a center, in a width direction, of the movable blade.

4. The printer according to claim 3 , wherein
the hook portion includes a resin member.

5. The printer according to claim 3 , wherein
a spring length of the tension spring is maximum when the first blade is located at the cutting position.

6. The printer according to claim 1 , further comprising
a second elastic member configured to pull the first blade in a direction in which the first blade moves to the cutting position when the first blade is located at the standby position.

7. The printer according to claim 1 , further comprising:
a device main body including
a printing mechanism portion and
a sheet holding portion configured to hold the sheet; and
a lid portion pivotally provided on the device main body to cover the sheet, wherein
the second blade is provided closer to the sheet holding portion side than the first blade is.

8. A cutter device, comprising:
a first blade configured to be movable between a standby position and a cutting position, and configured to cut a sheet at the cutting position;
a second blade configured to contact the first blade located at the cutting position;
a drive mechanism configured to drive the first blade; and
a first elastic member configured to pull the first blade located at the cutting position, wherein
when the first blade is located at the cutting position, the first elastic member pulls the first blade in a direction in which the first blade moves from the cutting position to the standby position, and pulls the first blade in a direction in which the first blade approaches the second blade.

Assignees

• Seiko Epson Corp

Inventors

• Inoue Nobuhiro
• Ishida Tetsugo

Classifications

• B41J11/706

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

• Y10T83/7763

  Tool carrier reciprocable rectilinearly · CPC title

• B41J15/042

  for loading rolled-up continuous copy material into printers, e.g. for replacing a used-up paper roll; Point-of-sale printers with openable casings allowing access to the rolled-up continuous copy material · CPC title

• B41J11/70 Primary

  cutting perpendicular to the direction of paper feed · CPC title

• B26D1/385

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