[특허]Method of roll-forming an end automotive bumper

Method of roll-forming an end automotive bumper 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B21B-017/04 B23K-013/02
출원번호	US-0290467 (1994-08-15)
발명자 / 주소	Sturrus Peter (Grand Haven MI)
출원인 / 주소	Shape Corporation (Grand Haven MI 02)
인용정보	피인용 횟수 : 30 인용 특허 : 0

초록 ▼

An end bumper for vehicles constructed from a single sheet of high-tensile strength steel roll-formed to provide two side-by-side tubular sections. Each section has a front wall, an outer side wall, a rear wall, and an inner side wall, the inner side walls being spaced one from the other and connected together by a web roll-formed integrally with the inner side walls. The front walls each have extended ends overlapping and abutting the web. The extreme ends of the front walls also form an abutting juncture which is welded together and also welded to the web. The bumper has a sweep formed by a sweep-forming mechanism having curvilinear external and internal mandrels conforming to the inner configuration and outer configuration of the bumper so as to provide a passageway therebetween for receiving the bumper. The bumper is passed through the passageway while the roll-forming of the bumper takes place upstream of the mandrels. The inner mandrel is supported by an elongated member extending from the internal mandrel to a support member located where the bending of the terminal lateral ends of the sheet have not yet been completed. A cutting mechanism cuts the bumper at predetermined lengths after the sweeping of the bumper has been completed to continuously form in succession a series of bumpers during the roll-forming of the sheet.

대표청구항 ▼

A method for forming a bumper bar for a vehicle comprising the steps of continuously providing a sheet of steel of a predetermined width and continuously roll-forming said sheet of high tensile strength steel by first forming a web in the longitudinal center section of said sheet, said web forming two inner sides connected together by a web, said web being located on a predetermined plane; bending said sheet at the ends of said web away from said plane to form relatively flat side walls extending from both ends of said web; bending said sheet at the outer ends of said side walls to form first walls extending away from and substantially parallel to said predetermined plane; bending the terminal lateral ends of said sheet in a direction toward said plane to form outer side walls and second walls, maid second walls being located on said plane and having extensions overlapping and abutting said web; holding said outer wall and said extension ends of said second wall in a position where said extensions overlap and abut said web; and welding said extensions to said web during said holding step to form a one-piece bumper having side-by-side tubular meet ions connected together by said web.

이 특허를 인용한 특허 (30)

Lee Yong-ho,KRX ; Lee Mun-yong,KRX, Apparatus and method for making an automotive bumper beam.
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Johnson, Thomas; Witte, Doug; Gatti, Daniel; Oxley, Brian; Malkowski, Brian, Apparatus for making tubular beam with center leg.
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Walter Himsl ; Jeffrey J. Mellis, Bumper beam assembly and method.
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Patrick M. Glance, Bumper beam having double open sided channel members.
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Haneda, Shinichi; Kita, Kiyoichi; Ohbayashi, Tamaki, Bumper reinforcement and bumper device for vehicle.
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Goto Hiroshi,JPX ; Hiramatsu Yasuaki,JPX, Bumper reinforcing member.
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Graber, Donald G., Cross member for vehicle bumper bar and method for making same.
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Graber,Donald G., Cross member for vehicle bumper bar and method for making same.
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Bladow,Jeffrey L.; Jaeger,Walter D, Crushed profile bumper and method for producing.
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Anderson Jeffrey A. ; Senior Robert B. ; Filipek Gregory J., D-section bumper.
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Sturrus Peter ; Heinz Richard D. ; Briggs Kirk W., Die apparatus for cutting end of bumper bar.
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Sturrus, Peter; Heinz, Richard D.; Briggs, Kirk W., Die apparatus for cutting end of bumper bar.
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Perucca, Steven R.; Cherniausky, Jeffery S., Energy absorber for vehicle.
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Graber, Donald G., Expandable link system and method of making same.
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Guiles,Melvin J., Low-profile high-strength vehicle door beam.
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Mellis, Jeffery Jay, Method for forming a bumper beam for a motor vehicle.
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Johnson, Thomas; Witte, Doug; Gatti, Daniel; Oxley, Brian; Malkowski, Brian, Method for forming tubular beam with center leg.
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Sundgren, Anders; Lindberg, Mats; Berglund, Goran, Method for manufacturing a bumper bar.
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Martini, Paul; Perucca, Steve; Fu, Mike, Multi-layer energy absorber.
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Cumming, David M.; Gabbianelli, Gianfranco; Mellis, Jeffery J.; Uchiyama, Hiroshi, Multiple material bumper beam.
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Krueger Eppstein,Albrecht, Process for milling metal parts.
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Lee, Mun Yong; Yoo, Jung Su, Roll forming apparatus, method thereof, and bumper beam manufactured by the method.
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Artner Bernd,DEX ; Krueger-Eppstein Albrecht,DEX, Structural member.
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Iida, Masataka; Takeuchi, Masahiko; Ishihara, Sadao; Matsukura, Takanori; Furuhata, Takayuki, Structural member having closed sections, and apparatus and method for producing the structural member.
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Bair,Jerry P., Sweep unit assembly.
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Graber, Donald G., Tubular bar with integral rolled locking system and method of making same.
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Graber, Donald G., Tubular bar with integral rolled locking system and method of making same.
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Johnson, Thomas; Witte, Doug; Gatti, Daniel; Oxley, Brian; Malkowski, Brian; Ramamoorthy, Kannan; Pendergrass, Ed, Tubular beam with center leg and method for forming the same.
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Conrod, Bryan Jeffrey, Vehicle bumper.
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Henseleit, Karl, Vehicle bumper and method of making same.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Method of roll-forming an end automotive bumper 원문보기

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Method of roll-forming an end automotive bumper 원문보기

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