초록 ▼

A fastening resin structure includes a preformed resin member, a fastener-receiving part of metal configured to be fastened to another structure, the fastener-receiving part having a portion joined to the preformed resin member, a foam portion provided on and formed integrally with the portion of th

A fastening resin structure includes a preformed resin member, a fastener-receiving part of metal configured to be fastened to another structure, the fastener-receiving part having a portion joined to the preformed resin member, a foam portion provided on and formed integrally with the portion of the fastener-receiving part which is joined to the preformed resin member, and a joining resin interposed between the preformed resin member and the foam portion and impregnated with the foam portion to thereby join the preformed resin member and the fastener-receiving part via the resin-impregnated foam portion.

대표청구항 ▼

1. A fastening resin structure comprising: a preformed resin member;a fastener-receiving part of metal configured to be fastened to another structure, the fastener-receiving part having a portion joined to the preformed resin member;a foam portion provided directly on and formed integrally with the

1. A fastening resin structure comprising: a preformed resin member;a fastener-receiving part of metal configured to be fastened to another structure, the fastener-receiving part having a portion joined to the preformed resin member;a foam portion provided directly on and formed integrally with the portion of the fastener-receiving part which is joined to the preformed resin member, the foam portion being spaced from the preformed resin member; anda joining resin interposed between the preformed resin member and the foam portion and having a portion impregnated in the foam portion to thereby join the preformed resin member and the fastener-receiving part via the resin-impregnated foam portion. 2. The fastening resin structure according to claim 1, wherein the preformed resin member is made of a fiber reinforced plastic, the fastener-receiving part is made of a sintered metal, and the foam portion is made of a foam metal, the foam portion is formed integrally with the portion of the fastener-receiving part which is joined with the preformed resin member. 3. The fastening resin structure according to claim 2, wherein the metal foam is an open-cell metal foam. 4. The fastening resin structure according to claim 1, wherein the joining resin further comprises a reinforcement portion extending over part of the preformed resin member to reinforce the preformed resin member. 5. The fastening resin structure according to claim 1, wherein the preformed resin member has a mounting hole, the fastener-receiving part comprises a metal collar having an outer circumferential surface, and the foam portion comprises a foam metal provided on and formed integrally with the outer circumferential surface of the metal collar, the metal collar and the form metal being disposed concentrically in the mounting hole with an annular space defined between an outer circumferential surface of the foam metal and an inner circumferential surface of the mounting hole, and the annular space is filled with the joining resin. 6. The fastening resin structure according to claim 5, wherein the metal collar has a flange extending radially outwardly from an axial end of the metal collar, the foam metal has a flange formed integrally on an inner surface of the flange of the metal collar and facing toward a surface of the preformed resin member extending perpendicular to an axis of the mounting hole, and the joining resin has a portion interposed between the surface of the preformed resin member and the flange of the formed metal and impregnated with the flange of the foam metal. 7. The fastening resin structure according to claim 5, wherein the preformed resin member has a hollow shape, and the joining resin includes a reinforcement resin part disposed on an interior surface of the hollow preformed resin member. 8. The fastening resin structure according to claim 1, wherein the fastener-receiving part comprises a metal block having a through-hole formed therein and having a side joined to a part of the preformed resin material, the foam portion comprises a foam metal provided on and formed integrally with the side of the metal block, and the joining resin is interposed between the foam metal and the preformed resin member and has a portion impregnated in the foam metal to thereby join the metal block and the preformed resin member via the resin-impregnated foam metal. 9. The fastening resin structure according to claim 8, wherein the preformed resin member has a hollow shape, and the joining resin includes a reinforcement resin part disposed on an interior surface of the hollow shape preformed resin member. 10. A method of manufacturing a fastening resin structure, comprising the steps of: providing a preformed resin member, a fastener-receiving part of metal having a portion to be joined to the preformed resin member, and a foam portion provided directly on and formed integrally with the portion of the fastener-receiving part which is to be joined to the preformed resin member;setting the preformed resin member, the fastener-receiving part and the foam portion in a cavity of a mold with a space defined between the preformed resin member and the foam portion, the cavity being complementary in shape with a fastening resin structure to be manufactured; andinjecting a resin into the cavity of the mold:to fill the space with the resin to thereby separate the foam portion from the resin member in the fastening resin structure; andalso to form a joining resin between the preformed resin member and the foam portion and having a portion impregnated in the foam portion to thereby join the preformed resin member and the fastener-receiving part via the resin-impregnated foam portion. 11. The method according to claim 10, wherein the preformed resin member is made of a fiber reinforced plastic, the fastener-receiving part is made of a sintered metal, and the foam portion is made of a metal foam, and the foam portion is formed integrally with the portion of the fastener-receiving part which is to be joined with the preformed resin member. 12. The method according to claim 11, wherein the metal foam is an open-cell metal foam.