Medium supporting device and recording device

Patent metadata

Field	Value
Publication number	US-11091339-B2
Application number	US-201916361712-A
Country	US
Kind code	B2
Filing date	Mar 22, 2019
Priority date	Mar 26, 2018
Publication date	Aug 17, 2021
Grant date	Aug 17, 2021

Abstract

A medium supporting device including a support part configured to support a roll body on which a sheet shaped medium is wound, a shaft serving as a rotary axis of the roll body and secured with the support part, and a driver configured to rotate the roll body supported by the support part. The shaft is secured to the support part by using a metal plate having a flat surface provided with an insertion hole, the insertion hole being a hole into which the shaft is inserted. An outer circumference part of the metal plate is restricted from moving in a rotation direction of the roll body relative to an inner circumference part of the support part.

First claim

What is claimed is:

1. A medium supporting device comprising:
a support part configured to support a roll body on which a sheet shaped medium is wound;
a shaft serving as a rotary axis of the roll body and secured with the support part; and
a driver configured to rotate the roll body supported by the support part,
wherein
the shaft is secured to the support part by using a metal plate having a flat surface provided with an insertion hole, the insertion hole being a hole into which the shaft is inserted,
an outer circumference part of the metal plate is restricted from moving in a rotation direction of the roll body relative to an inner circumference part of the support part,
the outer circumference part of the metal plate is provided with a plurality of teeth, and
the inner circumference part of the support part is provided with a plurality of engaging parts, each of which engaging with a respective tooth of the plurality of teeth.

2. The medium supporting device according to claim 1 , wherein a gap is formed between each respective tooth of the plurality of teeth and a corresponding engaging portion of the plurality of engaging parts in a radial direction of the shaft.

3. The medium supporting device according to claim 2 , wherein
the respective engaging portion of the plurality of engaging parts is formed with a protruding part protruding in a direction along the rotation direction of the roll body, and
the protruding part abuts the outer circumference part of the metal plate.

4. A recording device comprising:
the medium supporting device according to claim 3 ; and
a recording unit configured to perform recording onto the medium.

5. The medium supporting device according to claim 2 , wherein
the respective engaging portion of the plurality of engaging parts is formed with a protruding part protruding in a direction along the rotation direction of the roll body, and
the protruding part abuts the outer circumference part of the metal plate.

6. A recording device comprising:
the medium supporting device according to claim 5 ; and
a recording unit configured to perform recording onto the medium.

7. A recording device comprising:
the medium supporting device according to claim 2 ; and
a recording unit configured to perform recording onto the medium.

8. A recording device comprising:
the medium supporting device according to claim 1 ; and
a recording unit configured to perform recording onto the medium.

Assignees

• Seiko Epson Corp

Inventors

• Akahane Takashi

Classifications

• B65H2601/26

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