Roll body supporting device and printing apparatus

Patent metadata

Field	Value
Publication number	US-10576759-B2
Application number	US-201816006416-A
Country	US
Kind code	B2
Filing date	Jun 12, 2018
Priority date	Jun 14, 2017
Publication date	Mar 3, 2020
Grant date	Mar 3, 2020

Abstract

A roll body supporting device that rotatably supports a roll body includes a shaft member inserted into a core of the roll body, a shaft outer circumference member fixed to an outer circumference of the shaft member, a core support member that is inwardly in contact with and fits on the core, and a rotation support section that connects the shaft outer circumference member to the core support member and supports the core support member in a manner to be rotatable about the shaft member relative to the shaft outer circumference member.

First claim

What is claimed is:

1. A roll body supporting device that rotatably supports a roll body, the roll body supporting device comprising:
a shaft member configured to be inserted into a core of the roll body;
a shaft outer circumference member fixed to an outer circumference of the shaft member;
a core support member that is inwardly in contact with and fits on the core;
a rotation support section that connects the shaft outer circumference member to the core support member and supports the core support member such that the core support member is rotatable about the shaft member relative to the shaft outer circumference member, a fastening mechanism of the shaft outer circumference member being at least partially inwardly positioned relative to the core; and
a shaft supporting section that supports the shaft member so that the shaft member does not rotate and is detachable from the shaft supporting section.

2. The roll body supporting device according to claim 1 , wherein a fixation position of the shaft outer circumference member to the shaft member is variable.

3. The roll body supporting device according to claim 1 , further comprising a rotation driving section that rotates the core support member about the shaft member relative to the shaft outer circumference member.

4. The roll body supporting device according to claim 1 , wherein the shaft member comprises a square rod.

5. The roll body supporting device according to claim 4 , wherein the shaft supporting section that supports the shaft member is configured to include a V block that fixedly supports the shaft member.

6. A printing apparatus comprising:
the roll body supporting device according to claim 1 that rotatably supports a roll body made of a print medium wound in a roll shape;
a transport unit that transports the print medium; and
a print section that performs printing on the print medium.

7. A printing apparatus comprising:
the roll body supporting device according to claim 2 that rotatably supports a roll body made of a print medium wound in a roll shape;
a transport unit that transports the print medium; and
a print section that performs printing on the print medium.

8. A printing apparatus comprising:
the roll body supporting device according to claim 3 that rotatably supports a roll body made of a print medium wound in a roll shape;
a transport unit that transports the print medium; and
a print section that performs printing on the print medium.

9. A printing apparatus comprising:
the roll body supporting device according to claim 4 that rotatably supports a roll body made of a print medium wound in a roll shape;
a transport unit that transports the print medium; and
a print section that performs printing on the print medium.

10. A printing apparatus comprising:
the roll body supporting device according to claim 5 that rotatably supports a roll body made of a print medium wound in a roll shape;
a transport unit that transports the print medium; and
a print section that performs printing on the print medium.

11. The roll body supporting device according to claim 1 , wherein the shaft supporting section includes an upper block and a lower block that allow the shaft member to be detachable from the shaft supporting section.

12. A roll body supporting device that rotatably supports a roll body, the roll body supporting device comprising:
a shaft member configured to be inserted into a core of the roll body;
a shaft outer circumference member fixed to an outer circumference of the shaft member;
a core support member that is inwardly in contact with and fits on the core;
a rotation support section that connects the shaft outer circumference member to the core support member and supports the core support member such that the core support member is rotatable about the shaft member relative to the shaft outer circumference member,
wherein at least five support mechanisms, each including a shaft outer circumference member, a core support member, and a rotation support section, are provided for the shaft member.

13. A printing apparatus comprising:
the roll body supporting device according to claim 12 that rotatably supports a roll body made of a print medium wound in a roll shape;
a transport unit that transports the print medium; and
a print section that performs printing on the print medium.

Assignees

• Seiko Epson Corp

Inventors

• Kobayashi Masaki

Classifications

• B65H16/06

  both-ends type · CPC title

• B41J15/02

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

• B65H2301/41346

  separate elements engaging each end of the roll (e.g. chuck) · CPC title

• B65H18/021

  Multiple web roll supports · CPC title

• B65H2801/21

  Industrial-size printers, e.g. rotary printing press · CPC title