Peeling device and ink jet printer

Patent metadata

Field	Value
Publication number	US-10105970-B2
Application number	US-201715636252-A
Country	US
Kind code	B2
Filing date	Jun 28, 2017
Priority date	Jun 30, 2016
Publication date	Oct 23, 2018
Grant date	Oct 23, 2018

Abstract

The peeling device has a pressing roller that comes into contact with a label attaching surface (a first surface) of the backing paper and a driving roller that comes into contact with a back surface of the backing paper. The peeling device includes a peeling plate that is provided on the upstream side of an interposing roller pair in a transport direction of the backing paper when the label is peeled off from the backing paper and that bends a transport path of the backing paper. The pressing roller is a split roller including a roller shaft and a plurality of rollers. The peeling device includes support frames that support the pressing roller, and coil springs that come into contact with the roller shaft in an area on the pressing roller between the support frames and that bias the pressing roller toward the driving roller.

First claim

What is claimed is:

1. A peeling device configured to peel off a label attached to a first surface of backing paper, the peeling device comprising:
an interposing roller pair including a first roller and a second roller, the first roller being configured to come into contact with the first surface, the second roller being configured to come into contact with a surface of the backing paper different from the first surface, the interposing roller pair being configured to interpose and transport the backing paper;
a peeling plate provided on an upstream side of the interposing roller pair in a transport direction of the backing paper when the label is peeled off from the backing paper, the peeling plate being configured to bend a transport path of the backing paper, the first roller being a split roller including a shaft and a plurality of rollers through which the shaft is inserted;
support portions configured to support the first roller; and
a biasing member configured to come into contact with the shaft in an area on the first roller between the support portions, the biasing member being configured to bias the first roller toward the second roller.

2. The peeling device according to claim 1 , wherein,
with respect to a center in a width direction intersecting the transport direction of the backing paper, an equal number of the biasing members are disposed individually in a first and second areas on the first roller, the first area occupying one side of the center and the second area occupying an other side of the center.

3. The peeling device according to claim 1 , wherein
with respect to a center in a width direction intersecting the transport direction of the backing paper, the biasing members are disposed in symmetrical positions on the first roller.

4. The peeling device according to claim 1 , further comprising a roller unit having the first roller and the biasing members mounted thereon.

5. The peeling device according to claim 4 , further comprising an operating portion operated by a user, wherein:
the roller unit is;
detachably provided in a cover configured to revolve, and
attached and detached according to operation to the operating portion, and

the operating portion is inoperable with the cover closed.

6. The peeling device according to claim 5 , wherein
the roller unit has a rib on a surface thereof facing the transport path of the backing paper.

7. The peeling device according to claim 5 , wherein,
with respect to a center in a width direction intersecting the transport direction of the backing paper, an equal number of the biasing members are disposed individually in a first and second areas on the first roller, the first area occupying one side of the center and the second area occupying an other side of the center.

8. The peeling device according to claim 5 , wherein
with respect to a center in a width direction intersecting the transport direction of the backing paper, the biasing members are disposed in symmetrical positions on the first roller.

9. An ink jet printer comprising:
a printhead configured to print on label paper including backing paper and a label attached to a first surface of the backing paper;
an interposing roller pair including a first roller and a second roller, the first roller being configured to come into contact with the first surface, the second roller being configured to come into contact with a surface of the backing paper different from the first surface, the interposing roller pair being configured to interpose and transport the backing paper;
a peeling plate provided on an upstream side of the interposing roller pair in a transport direction of the backing paper when the label is peeled off from the backing paper, the peeling plate being configured to bend a transport path of the backing paper, the first roller being a split roller including a shaft and a plurality of rollers through which the shaft is inserted;
support portions configured to support the first roller; and
a biasing member configured to come into contact with the shaft in an area on the first roller between the support portions, the biasing member being configured to bias the first roller toward the second roller.

10. The ink jet printer according to claim 9 , wherein,
with respect to a center in a width direction intersecting the transport direction of the backing paper, an equal number of the biasing members are disposed individually in a first and second areas on the first roller, the first area occupying one side of the center and the second area occupying an other side of the center.

11. The ink jet printer according to claim 9 , wherein
with respect to a center in a width direction intersecting the transport direction of the backing paper, the biasing members are disposed in symmetrical positions on the first roller.

12. The ink jet printer according to claim 9 , further comprising a roller unit having the first roller and the biasing members mounted thereon.

13. The ink jet printer according to claim 12 , further comprising an operating portion operated by a user, wherein:
the roller unit is;
detachably provided in a cover configured to revolve, and
attached and detached according to operation to the operating portion, and

the operating portion is inoperable with the cover closed.

14. The ink jet printer according to claim 13 , wherein,
with respect to a center in a width direction intersecting the transport direction of the backing paper, an equal number of the biasing members are disposed individually in a first and second areas on the first roller, the first area occupying one side of the center and the second area occupying an other side of the center.

15. The ink jet printer according to claim 13 , wherein
with respect to a center in a width direction intersecting the transport direction of the backing paper, the biasing members are disposed in symmetrical positions on the first roller.

16. The ink jet printer according to claim 13 , wherein
the roller unit has a rib on a surface thereof facing the transport path of the backing paper.

17. The ink jet printer according to claim 12 , wherein
the roller unit has a rib on a surface thereof facing the transport path of the backing paper.

Assignees

• Seiko Epson Corp

Inventors

• Sakajo Hiroaki

Classifications

• B65C2210/0078

  Peeling devices · CPC title

• B65C2009/0093

  Devices switching between a peelable and a non peelable position · CPC title

• B65C2009/0012

  the peeling tip having a variable radius · CPC title

• B65C2009/0009

  by means of a peeling tip · CPC title

• B41J11/04 Primary

  Roller platens · CPC title