Resin-junction material and joining method for resin member

Patent metadata

Field	Value
Publication number	US-10071540-B2
Application number	US-201514592345-A
Country	US
Kind code	B2
Filing date	Jan 8, 2015
Priority date	Jan 10, 2014
Publication date	Sep 11, 2018
Grant date	Sep 11, 2018

Abstract

A resin-junction body includes a first resin member, a second resin member including a concave portion and laminated on the first resin member so as to contact the first resin member at a contact surface. The concave portion comprises a bottom face on a first resin member side. The resin-junction body further includes a joining layer that joins the first resin member and the second resin member and that extends from the bottom face towards the first resin member.

First claim

What is claimed is:

1. A resin-junction body comprising:
a first resin member formed by thermoplastic-resin material;
a second resin member comprising a hole and formed by thermoplastic-resin material; and
an entirety of a third resin member disposed inside the hole and formed by thermoplastic-resin material,
wherein optical transparency of the third resin member is higher than optical transparency of the first resin member and the second resin member,
wherein the first resin member, the second resin member, and the third resin member are joined by being welded at a welding region,
wherein the welding region extends from the hole towards the first resin member,
wherein the hole comprises an inner side wall that contacts the third resin member, and
wherein the welding region extends along the inner side wall in a direction vertical to the first resin member.

2. The resin-junction body according to claim 1 , wherein an end of the welding region that extends towards the first resin member is tapered.

3. The resin-junction body according to claim 1 , wherein the hole has a tapered shape such that a diameter of an opening of the hole becomes smaller toward a first resin member side.

4. The resin-junction body according to claim 1 , wherein the welding region is formed by heat welding at least one of the first resin member and the second resin member.

5. The resin-junction body according to claim 4 , wherein
the welding region extends from the inner side wall toward the third resin member.

6. The resin-junction body according to claim 5 , wherein the third resin member comprises a leaf spring that applies pressure toward the first resin member.

7. The resin-junction body according to claim 5 , wherein the thermoplastic-resin materials of the first resin member, the second resin member, and the third resin member contain the same thermoplastic-resin.

8. The resin-junction body according to claim 5 , wherein
the thermoplastic-resin materials of the first resin member and the second resin member comprise a conductive additive, and
the first resin member and the second resin member are disposed on portions of a predetermined electrical device requiring conductivity.

9. The resin-junction body according to claim 6 , wherein the thermoplastic-resin materials of the first resin member, the second resin member, and the third resin member contain the same thermoplastic-resin.

10. The resin-junction body according to claim 6 , wherein
the thermoplastic-resin materials of the first resin member and the second resin member comprise a conductive additive, and
the first resin member and the second resin member are disposed on portions of a predetermined electrical device requiring conductivity.

11. A method of forming a resin-junction body comprising:
providing a first resin member formed by thermoplastic-resin material;
providing a second resin member comprising a hole and formed by thermoplastic-resin material; and
providing an entirety of a third resin member disposed inside the hole and formed by thermoplastic-resin material,
wherein optical transparency of the third resin member is higher than optical transparency of the first resin member and the second resin member,
wherein the first resin member, the second resin member, and the third resin member are joined by being welded at a welding region,
wherein the welding region extends from the hole towards the first resin member,
wherein the hole comprises an inner side wall that contacts the third resin member, and
wherein the welding region extends along the inner side wall in a direction vertical to the first resin member.

Assignees

• Funai Electric Co

Inventors

• Takahashi Yutaka

Classifications

• B32B37/18

  involving the assembly of discrete sheets or panels only · CPC title

• Y10T428/24612

  Composite web or sheet · CPC title

• B29C66/24221

  being circular (B29C66/51 takes precedence) · CPC title

• B32B2038/047

  Perforating · CPC title

• Y10T156/1064

  Partial cutting [e.g., grooving or incising] · CPC title