Supply device for roll medium and recording device

Patent metadata

Field	Value
Publication number	US-12304199-B2
Application number	US-202318320757-A
Country	US
Kind code	B2
Filing date	May 19, 2023
Priority date	Aug 28, 2020
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

A supply device for a roll medium includes a drawer-type lower holding unit configured to support a shaft of a roll medium to hold the roll medium, and a guide member configured to be pressed in a direction toward the shaft from below to come into contact with the roll medium held by the lower holding unit, and be displaced in accordance with a change in an outer diameter of the roll medium. In addition, the lower holding unit is configured to be drawn from a main body of the supply device in a first direction. When the lower holding unit, in a drawn-out state, is stored in the main body of the supply unit, the guide member comes into contact with the roll medium. The guide member is caused to be retracted downward from a travel path of the lower holding unit against a force pressing upward from below.

First claim

What is claimed is:

1. A supply device for a roll medium comprising:
a holding unit configured to support a shaft of a roll medium to hold the roll medium; and
a guide member configured to be pressed upward from below to come into contact with the roll medium held by the holding unit is stored in a supply device main body, and be displaced in accordance with a change in an outer diameter of the roll medium, wherein
the holding unit is configured to be drawn from the supply device main body in a first direction,
the guide member comes into contact with an outer periphery of the roll medium when the holding unit, in a drawn-out state, is stored in the supply device main body, and the guide member is caused to be retracted downward from a travel path of the holding unit against a force pressing upward from below, and
the shaft of the roll medium is configured to be driven by being coupled to a drive mechanism when the holding unit is in a stored state.

2. The supply device for a roll medium according to claim 1 , wherein
when a drawing direction in the first direction is set as upstream and a storage direction is set as downstream, the guide member rotates with a first rotational movement shaft disposed downstream in the first direction being a fulcrum, and is retracted.

3. The supply device for a roll medium according to claim 2 , wherein
the guide member is configured to include an arm portion and a swing portion,
the arm portion has one end disposed downstream of the first rotational movement shaft, and
the swing portion is provided at a side of another end of the arm portion.

4. The supply device for a roll medium according to claim 3 , wherein
the swing portion includes:
a first roller configured to come into contact with the roll medium in a process of storing the holding unit; and
at least one second roller configured to come into contact with the roll medium in the stored holding unit.

5. The supply device for a roll medium according to claim 4 , wherein
in the swing portion, the first roller is disposed upstream of the second roller, and in the process of storing the holding unit, comes into contact with the roll medium at a position lower than a height of the shaft of the roll medium.

6. The supply device for a roll medium according to claim 5 , wherein
a second rotational movement shaft is provided at the swing portion at the side of the other end of the arm portion, and
the swing portion is rotatably provided with the second rotational movement shaft being a fulcrum.

7. The supply device for a roll medium according to claim 6 , wherein
two of the second rollers are provided,
the second rotational movement shaft is disposed between the two second rollers, and
in a state where the holding unit is stored, the two second rollers are in contact with an outer periphery of the roll medium.

8. The supply device for a roll medium according to claim 7 , wherein
the swing portion includes an urging portion configured to press downward a side, with respect to the second rotational movement shaft, of the swing portion, the side being a side at which the first roller is disposed.

9. The supply device for a roll medium according to claim 4 , wherein
the first roller is disposed lower than the second roller when the first roller is not in contact with the roll medium.

10. The supply device for a roll medium according to claim 1 , wherein
a plurality of the holding units are disposed in a vertical direction, and
at least a holding unit, among the holding units, disposed lower than an uppermost stage is configured to be drawn.

11. A recording device comprising:
a supply device; and
a recording unit configured to perform recording on a sheet pulled out from a roll medium,
the supply device including:
a holding unit configured to support a shaft of the roll medium to hold the roll medium; and
a guide member configured to be pressed upward from below to come into contact with the roll medium held by the holding unit is stored in a supply device main body, and be displaced in accordance with a change in an outer diameter of the roll medium, wherein
the holding unit is configured to be drawn from the supply device main body in a first direction,
the guide member comes into contact with an outer periphery of the roll medium when the holding unit, in a drawn-out state, is stored in the supply device main body, and the guide member is caused to be retracted downward from a travel path of the holding unit against a force pressing upward from below, and
the shaft of the roll medium is configured to be driven by being coupled to a drive mechanism when the holding unit is in a stored state.

Assignees

• Seiko Epson Corp

Inventors

• Murata Mitsuru
• Yato Keiichi

Classifications

• B41J11/005

  Guides in the printing zone, e.g. guides for preventing contact of conveyed sheets with printhead · CPC title

• B41J3/60

  for printing on both faces of the printing material · CPC title

• B41J15/042 Primary

  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

• B65H2402/54

  Springs, e.g. helical or leaf springs · CPC title

• B65H2402/32

  Sliding support means · CPC title