[특허]Vehicle bumper with combination foam and air bag energy absorber

Vehicle bumper with combination foam and air bag energy absorber 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60R-019/20
출원번호	US-0723048 (1991-06-28)
발명자 / 주소	Curtis Cass V. (Dover NH)
출원인 / 주소	Davidson Textron Inc. (Dover NH 02)
인용정보	피인용 횟수 : 67 인용 특허 : 0

초록 ▼

A vehicle bumper assembly has a fascia covering a layer of compressible energy absorbing plastic material with a cavity formed therein; the cavity contains an inflatable bladder connected at a header plate to a fill port and an exhaust port. The exhaust port is connected to a relief valve and an orifice for controlling exhaust of gas from the inflatable bladder to control the point at which deflation of the air bag starts and the rate of deflation; the fill port is connected to a gas source operative in response to vehicle impact to generate a gas charge for inflating the bladder to fill the cavity and provide energy absorbing capacity in addition to that provided by the compressible energy absorbing plastic material. In another embodiment the bladder is preinflated to fill the cavity and the exhaust port is normally closed but responsive to vehicle impact to define an opening through valve controlling the point deflation starts and the rate of deflation to establish an energy absorption rate in addition to that of the compressible energy absorbing plastic material.

대표청구항 ▼

In an energy absorbing bumper assembly having a flexible fascia for providing a styling appearance and a rigid bumper beam for connection to the frame of a vehicle and including a core of compressible foam plastic material having a frontal surface forming a support for said flexible fascia and including an interior cavity with interior walls behind said frontal surface the improvement comprising: a deflated gas bag located in said cavity and including an inflated shaped conformable to said interior walls of said interior cavity for capturing said core between said flexible fascia and said gas bag; a gas source including a gas generator and a housing surrounding said gas generator; a tube connecting said housing to said deflated gas bag for inflating said gas bag only upon energization of said gas generator; said core responsive to a predetermined vehicle impact when said gas bag is deflated to cause cells of said core to compress to absorb a first level of energy; means responsive to said predetermined vehicle impact for initially inflating said gas bag only following said predetermined vehicle impact to cause it to conform to said cavity; means in association with said gas bag for maintaining the inflatant pressure in said gas bag for holding the shape of said gas bag in its conformed relationship to said cavity for a predetermined delay period during which said cells of said core are compressed; and means for controlling exhaust of fluid from said gas bag following the predetermined delay period for producing a second level of energy absorption in addition to said first level of energy absorption.

이 특허를 인용한 특허 (67)

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Crane Roger M. ; Corona-Bittick Kathleen A. ; Dorr Donald James, Elastomeric composite bumper system and method for absorbing high energy impact.
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Perucca, Steven R.; Cherniausky, Jeffery S., Energy absorber for vehicle.
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Evans, Darin; Burke, Jeffery T.; Bastien, Kenneth R.; Holdren, Kevin E.; Ralston, Daniel D.; Gorman, David, Energy absorber with crush boxes and back straps.
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Gregory Stanley Frederick, Energy absorbing bumper.
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Farooq, Iskander; Faruque, Mohammed Omar; Jaradi, Dean M., Energy absorbing member for a bumper assembly of a vehicle.
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Arvelo, Eduardo; Brown, Gary; Frank, Thomas; Rathje, Klaus; Ziegs, Maya, Energy-absorbing bumper.
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Hamid Taghaddos AE, Energy-absorbing structure for an automobile.
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Kavc Andrew R. ; Gondert William G. ; Baslock Chad C. ; Thompson Gerald ; Harris Jesse A. ; Varnhagen Jonathan P. ; Nomi Glenn T. ; Townsend William C. ; Arnone James L., Front bumper adjustable fascia.
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Slattery, Kerry T.; Crane, Roger M.; Corona-Bittick, Kathleen A.; Dorr, Donald James, High energy impact absorption fender system using valvular control logic.
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White Donald J., Impact absorbing apparatus.
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Galbraith Lyle D. ; Italiane John R., Inflatabe metal bladders for automobile passenger protection.
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Francis Demarquilly FR; Jean-Jacques Laporte FR, Inflatable air bag release and membrane protection device.
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Clark, Todd N., Inflatable bolster in a vehicle bumper.
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Zander, Robert J.; Kucejko, Richard; Williams, II, Michael P., Molded foam vehicle energy absorbing device and method of manufacture.
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Zander,Robert J; Kucejko,Richard; Williams, II,Michael P, Molded foam vehicle energy absorbing device and method of manufacture.
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Vismara, Mario; Toneatti, Jean Louis, Protective structure for vehicles, designed to be used, in particular, in the event of impact with pedestrians.
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Anderson, Jeffrey A.; Allenspach, Brian P.; Baker, Jon F.; Zabik, Benjamin R., Vehicle and bumper assembly therefor having an integral fascia and energy absorber, and method for making the same.
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Carley, Michael; Sopher, Steven R., Vehicle bumper energy absorber system and method.
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Vehicle bumper with combination foam and air bag energy absorber 원문보기

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Vehicle bumper with combination foam and air bag energy absorber 원문보기

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