Winding device and printing device

Patent metadata

Field	Value
Publication number	US-11926151-B2
Application number	US-201917043557-A
Country	US
Kind code	B2
Filing date	Mar 1, 2019
Priority date	Mar 30, 2018
Publication date	Mar 12, 2024
Grant date	Mar 12, 2024

Abstract

A winding device is capable of easily moving a flange portion to a position corresponding to a width of a continuous medium. A winding device that winds a print medium, the winding device including a winding shaft, a winding core portion that is provided to be rotatable on the winding shaft and that winds a continuous medium, a first flange portion that is provided on the winding shaft to be movable in an extending direction of the winding shaft and that guides the continuous medium wound around the winding core portion in a width direction of the continuous medium, a flange-side engaging portion capable of moving integrally with the first flange portion, and a flange moving section that includes a cylindrical cam provided with a cam-side engaging portion that engages with the flange-side engaging portion and that moves the first flange portion to a plurality of flange positions.

First claim

The invention claimed is:

1. A winding device comprising:
a winding shaft;
a winding core portion that is provided to be rotatable on the winding shaft and that winds a continuous medium;
a flange portion that is provided on the winding shaft to be movable in an extending direction of the winding shaft and that guides the continuous medium wound around the winding core portion in a width direction of the continuous medium;
a flange-side engaging portion capable of moving integrally with the flange portion; and
a flange moving section that includes a cam provided with a cam-side engaging portion that engages with the flange-side engaging portion and that moves the flange portion to a plurality of flange positions.

2. The winding device according to claim 1 , wherein
the cam-side engaging portion includes
a cam-side maintenance engaging portion that maintains the flange portion at the flange position, and
a cam-side movement engaging portion that moves the flange portion between the flange positions.

3. The winding device according to claim 2 , wherein
the flange moving section includes
an operating portion for operating the cam, and
an operation restricting portion that restricts the operating portion by engaging with a restriction engaging portion, and

the cam-side engaging portion engages with the flange-side engaging portion in the cam-side maintenance engaging portion when the operation restricting portion engages with the restriction engaging portion.

4. The winding device according to claim 1 , wherein
the flange moving section includes
an operating portion for operating the cam, and
an operation restricting portion that restricts the operating portion by engaging with a restriction engaging portion, and

the flange portion is positioned at the flange position when the operation restricting portion engages with the restriction engaging portion.

5. The winding device according to claim 1 , wherein
the flange portion is provided with a shaft insertion hole into which the winding shaft is inserted, and
the flange portion is positioned in directions intersecting the extending direction of the winding shaft due to the winding shaft being inserted into the shaft insertion hole.

6. The winding device according to claim 1 , wherein
the cam is rotatable around a rotation axis parallel to the extending direction of the winding shaft, and
the flange portion moves in the extending direction of the winding shaft due to rotation of the cam.

7. The winding device according to claim 1 , wherein
the cam-side engaging portion is provided in a groove shape in a circumferential surface of the cam, and
the flange-side engaging portion includes an engaging protrusion portion that engages with the cam-side engaging portion.

8. The winding device according to claim 7 , wherein
of two wall portions in the extending direction of the winding shaft in the cam-side engaging portion, the wall portion on a flange portion side functions as a retaining portion that renders the engaging protrusion portion in a retained state with respect to the cam-side engaging portion.

9. The winding device according to claim 1 , wherein
the flange portion and the winding core portion are formed integrally.

10. The winding device according to claim 1 , wherein
the flange portion is fixed to the winding core portion.

11. A printing device comprising:
a printing section that performs printing on a continuous medium;
a winding shaft;
a winding core portion that is provided to be rotatable on the winding shaft and that winds the continuous medium;
a flange portion that is provided on the winding shaft to be movable in an extending direction of the winding shaft and that guides the continuous medium wound around the winding core portion in a width direction of the continuous medium;
a flange-side engaging portion capable of moving integrally with the flange portion; and
a flange moving section that includes a cam provided with a cam-side engaging portion that engages with the flange-side engaging portion and that moves the flange portion to a plurality of flange positions.

Assignees

• Seiko Epson Corp

Inventors

• Shintani Akihiro

Classifications

• B41J15/16 Primary

  Means for tensioning or winding the web · CPC title

• B41J3/4075

  Tape printers; Label printers · CPC title

• B41J11/00

  Devices or arrangements  {of selective printing mechanisms, e.g. ink-jet printers or thermal printers,} for supporting or handling copy material in sheet or web form (script supports connected to the typewriter or printer B41J29/15) · CPC title

• B41J15/00

  Devices or arrangements {of selective printing mechanisms, e.g. ink-jet printers or thermal printers,} specially adapted for supporting or handling copy material in continuous form, e.g. webs · CPC title

• B41J15/02

  Web rolls or spindles; Attaching webs to cores or spindles · CPC title