Liquid flow path member and method for manufacturing liquid flow path member
AssigneeSeiko Epson Corporation
InventorTakayoshi Mizuno
Life of this patent
Estimating the term…
Abstract
A method for manufacturing a check valve unit as a liquid flow path member, in which the liquid flow path member includes, in a flow path direction of ink, a first flow path member constituting one side of a flow path, a second flow path member constituting another side of the flow path, and a check valve including a valve body configured to stop a backflow of the ink in the flow path and a check valve holding member configured to hold the valve body, the method includes a welding step for welding the first flow path member or the second flow path member, and the check valve holding member together, and also welding the first flow path member and the second flow path member together.
Claims3
A method for manufacturing a liquid flow path member including
- a first flow path member constituting one side of a liquid flow path,
- a second flow path member constituting another side of the liquid flow path, and
- a check valve including a valve body configured to stop a backflow of the liquid in the liquid flow path and a check valve holding member configured to hold the valve body, the method comprising:
- a welding step for welding the first flow path member or the second flow path member to the check valve holding member, and also welding the first flow path member to the second flow path member;
- forming the first flow path member and the check valve holding member using a laser light absorbing material;
- and
- forming the second flow path member using a laser light transmissive material, wherein the welding step includes
- welding the first flow path member to the second flow path member by melting a joining surface of the first flow path member that is joined to the second flow path member, with laser light passing through the second flow path member;
- and
- welding the check valve holding member to the second flow path member by melting a joining surface of the check valve holding member that is joined to the second flow path member, with the laser light passing through the second flow path member.
A liquid flow path member comprising:
- a first flow path member constituting one side of a liquid flow path;
- a second flow path member constituting another side of the liquid flow path;
- and
- a check valve including a valve body configured to stop a backflow of the liquid in the liquid flow path and a check valve holding member configured to hold the valve body, wherein
- the first flow path member and the check valve holding member are formed of a laser light absorbing material,
- the second flow path member is formed of a laser light transmissive material, and
- the first flow path member and the second flow path member are welded together, and the second flow path member and the check valve holding member are welded together.
Dependencies are inferred from the claim text.