Back to results
US 12,625,442 B2Granted
Powder container, image forming apparatus, and method for manufacturing powder container
AssigneeRicoh Company, Ltd.
InventorShuntaro Tamaki
Life of this patent
Estimating the term…
Abstract
A powder container for storing powder inside includes a container main portion. The container main portion has a substantially cylindrical shape to rotate around a rotation axis of the container main portion to convey powder stored inside the container main portion in a conveyance direction along a direction of the rotation axis. The container main portion is a component made of paper formed by press working.
Claims20
A powder container for storing powder inside, comprising:
- a container main portion having a substantially cylindrical shape to rotate around a rotation axis of the container main portion to convey powder stored inside the container main portion in a conveyance direction along a direction of the rotation axis, the container main portion being a component including paper formed by press working;
- and
- a container head portion disposed to communicate with an opening of the container main portion on a downstream side of the container main portion in the conveyance direction,
- wherein the container head portion includes:
- an ejection port to eject the powder conveyed from the container main portion to an outside of the powder container;
- and
- a gear formed on an outer circumferential surface of the container head portion, and
- the container head portion is rotatable together with the container main portion and is a component made by resin molding.
5 more elements
A powder container comprising:
- a container main portion having a substantially cylindrical shape to rotate around a rotation axis of the container main portion to convey powder stored inside the container main portion in a conveyance direction along a direction of the rotation axis, the container main portion being a component including paper formed by press working;
- and
- a container bottom portion disposed to close an opening of the container main portion on an upstream side of the container main portion in the conveyance direction,
- wherein the container bottom portion is rotatable together with the container main portion and is a component made by resin molding or by press working of paper.
1 more element
A method of manufacturing a powder container for storing powder inside, the method comprising:
- performing press working on a flat sheet of paper to form a plurality of concave-and-convex portions that are recessed from a front surface of the flat sheet of paper and protrude toward a back surface of the flat sheet of paper;
- and
- joining ends of the flat sheet of paper to form a container main portion having a substantially cylindrical shape after the press working,
- wherein the performing the press working includes:
- forming a first semi-cylindrical portion and a second semi-cylindrical portion connected to each other at a bent portion on the flat sheet of paper;
- and
- forming a plurality of concave-and-convex portions on the first semi-cylindrical portion and the second semi-cylindrical portion, and
- wherein the joining includes bending the first semi-cylindrical portion and the second semi-cylindrical portion at the bent portion to join an end of the first semi-cylindrical portion and an end of the second semi-cylindrical portion to each other.
5 more elements
Dependencies are inferred from the claim text.