Joint member, method for producing joint member, and method for connecting flexible tube to joint member
AssigneeNEC Platforms, Ltd.
InventorYasuhito Nakamura
Life of this patent
Estimating the term…
Abstract
A joint member includes a joint main body configured to include a flow path portion formed and an opening portion communicating with the flow path portion, and a tube member configured to include an end portion inserted into the opening portion of the joint main body and joined to the joint main body by brazing. The joint main body includes a step portion on which the end portion of the tube member inserted into the opening portion abuts. The tube member includes an annular recessed portion recessed from an outer peripheral surface of the tube member and formed on a flexible tube side with respect to an end surface on a joint main body side.
Claims6
A joint member to which a flexible tube is to be connected, the joint member comprising:
- a joint main body configured to include a flow path portion formed therein and an opening portion with an inner diameter larger than an inner diameter of the flow path portion and communicating with the flow path portion;
- and
- a tube member configured to include an end portion inserted into the opening portion of the joint main body and joined to the joint main body by brazing, and to be inserted into the flexible tube,
- wherein the flexible tube and the joint main body are connected to each other via the tube member and are otherwise separated from each other,
- wherein the joint main body comprises a step portion formed between the opening portion and the flow path portion and on which the end portion of the tube member inserted into the opening portion abuts, and
- the tube member comprises an annular recessed portion recessed from an outer peripheral surface of the tube member and formed on a flexible tube side with respect to an end surface on a joint main body side.
A method for connecting the flexible tube to a joint member to which a flexible tube is to be connected, the joint member including:
- a joint main body configured to include a flow path portion formed therein and an opening portion with an inner diameter larger than an inner diameter of the flow path portion and communicating with the flow path portion;
- and
- a tube member configured to include an end portion inserted into the opening portion of the joint main body and joined to the joint main body by brazing, and to be inserted into the flexible tube,
- wherein the joint main body comprises a step portion formed between the opening portion and the flow path portion and on which the end portion of the tube member inserted into the opening portion abuts, and
- the tube member comprises an annular recessed portion recessed from an outer peripheral surface of the tube member and formed on a flexible tube side with respect to an end surface on a joint main body side,
- the method comprising:
- inserting the tube member into a tube end of the flexible tube up to the annular recessed portion;
- and
- fixing the flexible tube from an outside in a radial direction with an annular clamp member at a position where the flexible tube and the tube member overlap.
Dependencies are inferred from the claim text.