Composite member and composite-member manufacturing method

Patent metadata

Field	Value
Publication number	US-2016207236-A1
Application number	US-201515025563-A
Country	US
Kind code	A1
Filing date	Jan 9, 2015
Priority date	Jan 31, 2014
Publication date	Jul 21, 2016
Grant date	—

Abstract

A composite member includes a metal sheet having a bent portion formed by bending, and a resin member joined to at least a part of the bent portion. The metal sheet includes an opening provided on an inner side of the bent portion, and a tapered recess that tapers off from an outer side of the bent portion toward the opening. The resin member includes an inner resin part filled in the recess, and an exposed resin part provided to be continuous with the inner resin part and to extend to an inner surface of the bent portion through an edge portion of the opening.

First claim

1 . A composite member comprising:
a metal sheet having a bent portion formed by bending; and a resin member joined to at least a part of the bent portion, wherein the metal sheet includes
an opening provided on an inner side of the bent portion, and
a tapered recess that tapers off from an outer side of the bent portion toward the opening, and
wherein the resin member includes
an inner resin part filled in the recess, and
an exposed resin part provided to be continuous with the inner resin part and to extend to an inner surface of the bent portion through an edge portion of the opening.

2 . The composite member according to claim 1 , wherein the recess is a through hole.

3 . The composite member according to claim 1 , wherein the recess is a groove.

4 . The composite member according to claim 1 , wherein the metal sheet has a fitting recess filled with the exposed resin part.

5 . The composite member according to claim 2 , wherein the metal sheet has a fitting recess filled with the exposed resin part.

6 . The composite member according to claim 3 , wherein the metal sheet has a fitting recess filled with the exposed resin part.

7 . The composite member according to claim 1 , wherein the composite member is a housing of an electric device.

8 . A composite-member manufacturing method comprising:
a preparation step of preparing a metal sheet shaped like a flat sheet; a recess forming step of forming a recess having an opening in at least a part of a portion of the metal sheet subjected to bending; a bending step of subjecting the metal sheet to bending with the opening being disposed on an inner side of a bent portion; and a resin filling step of filling the recess with resin and molding the resin so that the resin extends to an inner surface of the bent portion of the metal sheet through an edge portion of the opening.

9 . The composite-member manufacturing method according to claim 8 ,
wherein the preparation step includes a punching step of punching a blank in a predetermined shape to form the metal sheet shaped like the flat sheet, and wherein the recess forming step is performed simultaneously with the punching step, and the recess is formed by boring a through hole that penetrates both surfaces of the blank.

10 . A composite member manufactured by the composite-member manufacturing method according to claim 8 .

Assignees

• Sumitomo Electric Industries

Inventors

• Tsubota Taisuke
• Inoue Ryuichi
• Numano Masatada
• Mizuno Osamu
• Tanaka Motoyoshi
• Kawabe Nozomu
• Aoki Katsuyuki

Classifications

• B29C45/14344 Primary

  Moulding in or through a hole in the article, e.g. outsert moulding · CPC title

• B21D35/002

  Processes combined with methods covered by groups B21D1/00 - B21D31/00 · CPC title

• B29C45/14467

  Joining articles or parts of a single article (B29C45/14377, B29C45/14385, B29C45/14581, B29C45/14614 and B29C45/006 take precedence) · CPC title

• H04M1/0202

  Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets (constructional features of telephone transmitters or receivers, e.g. of speakers or microphones H04M1/03) · CPC title

• B29K2705/00

  Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts · CPC title