Fusion sheet and wiring member

Patent metadata

Field	Value
Publication number	US-12497544-B2
Application number	US-202218275047-A
Country	US
Kind code	B2
Filing date	Feb 1, 2022
Priority date	Feb 12, 2021
Publication date	Dec 16, 2025
Grant date	Dec 16, 2025

Abstract

A fusion sheet includes: a base material layer including a first surface and a second surface; a fusion base part partially stacked to the first surface of the base material layer and fusible to a wire-like transmission member; and an adhesive base part partially stacked to the second surface of the base material layer and having larger adhesive strength with an adhesive member than the base material layer. A first section and a second section are provided along an extension direction of the base material layer. The first section is a section where the adhesive base part is stacked to the base material layer other than a laminated section where the adhesive base part is stacked. The second section is a section where the adhesive base part is stacked to the base material layer other than a laminated section where the fusion base part is stacked.

First claim

The invention claimed is:

1 . A fusion sheet, comprising:
a base material layer including a first surface and a second surface, and the base material layer includes two straight regions each extending in a direction different from each other and a connection region connecting the two straight regions; a fusion base part partially stacked to the first surface of the base material layer and fusible to a wire-shape transmission member; an adhesive base part partially stacked to the second surface of the base material layer and having larger adhesive strength with an adhesive member than the base material layer, wherein a plurality of first sections and a plurality of second sections are provided along an extension direction of the base material layer, each of the first sections is a section where the fusion base part is stacked to the base material layer other than a laminated section where the adhesive base part is stacked, and each of the second sections is a section where the adhesive base part is stacked to the base material layer other than a laminated section where the fusion base part is stacked; and wherein one of the plurality of first sections is provided in an end portion of one of the two straight regions on one side of the connection region and another of the plurality of first sections is provided in an end portion of the other of the two straight regions on another side of the connection region, and one of the plurality of second sections is provided to the connection region.

2 . The fusion sheet according to claim 1 , wherein
the second surface of the base material layer is exposed in the plurality of first sections, and the first surface of the base material layer is exposed in the plurality of second sections.

3 . The fusion sheet according to claim 1 , wherein
the laminated section of the fusion base part and the laminated section of the adhesive base part on the base material layer are separately provided so as not to be overlapped with each other.

4 . The fusion sheet according to claim 1 , wherein
a dimension of each of the second sections is larger than a dimension of each of the first sections along the extension direction of the base material layer.

5 . The fusion sheet according to claim 1 , wherein
a resin material as a main material of the fusion base part is a same as a resin material as a main material of the adhesive base part.

6 . The fusion sheet according to claim 1 , wherein
the base material layer is formed of a fibrous material sheet, the adhesive base part is formed of a sheet having an inner portion evenly filled, and a surface of the adhesive base part is smoother than a surface of the base material layer.

7 . A wiring member, comprising:
a fusion sheet, including:
a base material layer including a first surface and a second surface;
a fusion base part partially stacked to the first surface of the base material layer and fusible to a wire-shape transmission member; and
an adhesive base part partially stacked to the second surface of the base material layer and having larger adhesive strength with an adhesive member than the base material layer, wherein
a plurality of first sections and a plurality of second sections are provided along an extension direction of the base material layer,
each of the first sections is a section where the fusion base part is stacked to the base material layer other than a laminated section where the adhesive base part is stacked, and
each of the second sections is a section where the adhesive base part is stacked to the base material layer other than a laminated section where the fusion base part is stacked; and
wherein the wire-shape transmission member is fused to the fusion base part in each of the first sections.

8 . The wiring member according to claim 7 , wherein
the wire-shape transmission member is disposed to extend along the extension direction of the base material layer.

9 . The wiring member according to claim 8 , wherein
in the fusion sheet, each of the first sections is provided on opposite sides of each of the second sections, and the wire-shape transmission member is fused to each of the first sections on opposite sides of each of the second sections while passing through each of the second sections.

10 . A wiring member, comprising:
the fusion sheet according to claim 1 ; and a wire-shape transmission member fused to the fusion base part in each of the first sections, wherein the wire-shape transmission member is curved and disposed in the connection region, and wherein the wire-shape transmission member is fused to the one of the plurality of first sections provided in the end portion of the one of the two straight regions and the another of the plurality of first sections provided in the end portion of the other of the two straight regions.

Assignees

• Sumitomo Wiring Systems
• Toyota Motor Co Ltd

Inventors

• Arai Kenta
• Kaba Takuya
• Ebata Daisuke
• Okaniwa Hirozumi
• Mitani yusuke
• Wakabayashi Itsuo

Classifications

• B32B7/14

  applied in spaced arrangements, e.g. in stripes · CPC title

• H02G3/305

  Mounting by adhesive material · CPC title

• C09J2203/302

  for bundling cables · CPC title

• C09J2301/21

  the adhesive layer being formed by alternating adhesive areas of different nature · CPC title

• C09J2301/1242

  the opposite adhesive layers being different · CPC title