Composite member, seat for automobile, and component for automobile

Patent metadata

Field	Value
Publication number	US-12337739-B2
Application number	US-202217702103-A
Country	US
Kind code	B2
Filing date	Mar 23, 2022
Priority date	Mar 25, 2021
Publication date	Jun 24, 2025
Grant date	Jun 24, 2025

Abstract

Provided are a composite member, a seat for automobile, and a component for automobile that suppress a decrease in strength at a connection place between a metal member and a fiber-reinforced member. A composite member includes: a fiber-reinforced member formed by impregnating a plurality of sheet-shaped core materials with a matrix resin; and a metal member joined to the fiber-reinforced member. The composite member has a structure in which a part of the metal member is sandwiched and fixed between a plurality of the core materials stacked in a thickness direction at a joint place between the fiber-reinforced member and the metal member.

First claim

What is claimed is:

1. A composite member comprising:
a fiber-reinforced member formed by impregnating a plurality of sheet-shaped core materials with a matrix resin; and a metal member joined to the fiber-reinforced member,
the composite member having a structure in which a part of the metal member is sandwiched and fixed between a plurality of the core materials stacked in a thickness direction at a joint place between the fiber-reinforced member and the metal member,
wherein the core materials each include a base layer and a fiber layer formed by arranging fiber bundles on one surface side of the base layer,
wherein the base layer consists of a fiber assembly, the fiber assembly being any of a woven fabric, a knitted fabric, and a nonwoven fabric,
wherein each of the fiber bundles is formed by aligning a plurality of reinforcing fibers,
wherein each of the fiber bundles is sewn to the base layer, and
wherein the core material at the joint place is disposed such that the base layer is in contact with the metal member.

2. The composite member according to claim 1 ,
wherein the core material constituting the fiber-reinforced member has a plurality of the fiber layers, and
wherein the core material at the joint place has a smaller number of the fiber layers than a number of the fiber layers of the core material constituting the fiber-reinforced member.

3. The composite member according to any one of claim 1 , wherein, at the joint place, the metal member has an anchor portion locked to the core material.

4. The composite member according to claim 3 , wherein the anchor portion is formed by bending an end of the metal member.

5. The composite member according to claim 3 , wherein the anchor portion is formed by cutting out a peripheral edge of the metal member.

6. A seat for automobile comprising a site formed of the composite member according to claim 1 .

7. A component for automobile comprising a site formed of the composite member according to claim 1 .

8. The composite member according to claim 1 ,
wherein the core material has, as the fiber layer, a first fiber layer formed by arranging the fiber bundles on one surface side of the base layer, and a second fiber layer formed by arranging the fiber bundles on one surface side of the first fiber layer,
wherein the fiber bundles of the first fiber layer and the fiber bundles of the second fiber layer are arranged to intersect each other.

Assignees

• Toyota Boshoku Kk

Inventors

• Yoshida Kento

Classifications

• B29C66/742

  to metals or their alloys · CPC title

• B29C66/723

  being multi-layered (B29C66/7292, B29C66/72941 take precedence) · CPC title

• B29L2031/771

  Seats · CPC title

• B29C37/0082

  Mechanical anchoring (B29C66/303 takes precedence) · CPC title

• B29C70/763

  the edges being disposed in a substantial flat plane · CPC title