[특허]Inflatable vehicle occupant protection device with inflation fluid deflector

TRW Vehicle SAfety Systems Inc.

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특허 상세정보

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Inflatable vehicle occupant protection device with inflation fluid deflector

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60R-021/26
미국특허분류(USC)	280/736; 280/731
출원번호	UP-0485255 (2009-06-16)
등록번호	US-7823920 (2010-11-22)
발명자 / 주소	Burghardt, Wilfried
출원인 / 주소	TRW Vehicle SAfety Systems Inc.
대리인 / 주소	Tarolli, Sundheim, Covell & Tummino LLP
인용정보	피인용 횟수 : 1 인용 특허 : 14

초록
▼

An apparatus (10) includes an inflatable protection device (14) having an upper portion (60) and a lower portion (62) and an inflator (32) having inflation fluid outlets (33). The inflator (32) is actuatable to inflate the protection device (14). A retainer (70) includes a base portion (72) for clamping the inflator (32) to a support member (34). The retainer (70) further includes a cover portion (74) that has a deflector portion (86) and a top portion (88). The deflector portion (86) directs inflation fluid from the inflator (32) into the protection device (14) in a direction substantially parallel to a central axis (37) of the inflator (32). The cover portion (74) directs inflation fluid from a first half (74a) of the cover portion (74) into the upper portion (60) of the protection device (14) at a first volumetric flow rate and from a second half (74b) of the cover portion (74) into the lower portion (62) of the protection device (14) at a second volumetric flow rate that is greater than the first volumetric flow rate.

대표
청구항
▼

Having described the invention, the following is claimed: 1. An apparatus for helping to protect an occupant of a vehicle, the apparatus comprising: an inflatable vehicle occupant protection device having an upper portion and a lower portion; an inflator having a flange and inflation fluid outlets, the inflator being actuatable to provide inflation fluid through the inflation fluid outlets to inflate the protection device; and a retainer comprising: a base portion for clamping the flange of the inflator to a support member; and a cover portion having a deflector portion that extends transversely from the base portion and a top portion that extends transversely from the deflector portion, the cover portion including a plurality of openings for providing fluid communication between the inflation fluid outlets and the protection device, the deflector portion directing inflation fluid from the inflator into the protection device in a direction substantially parallel to a central axis of the inflator, the cover portion directing inflation fluid from a first half of the cover portion into the upper portion of the protection device at a first volumetric flow rate, the cover portion directing inflation fluid from a second half of the cover portion into the lower portion of the protection device at a second volumetric flow rate that is greater than the first volumetric flow rate. 2. The apparatus recited in claim 1, wherein the support member comprises a reaction plate. 3. The apparatus recited in claim 1, wherein the openings include a plurality of openings in the first half of the cover portion and a plurality of openings in the second half of the cover portion. 4. The apparatus recited in claim 3, wherein the second half of the cover portion includes more openings than the first half of the cover portion. 5. The apparatus recited in claim 3, wherein the deflector portion directs inflation fluid only from the openings in the first half of the cover portion into the protection device. 6. The apparatus recited in claim 3, wherein the deflector portion directs inflation fluid from the openings in the first half of the cover portion and the second half of the cover portion into the protection device. 7. The apparatus recited in claim 5 further comprising a plurality of fins corresponding to the plurality of openings in the second half of the cover portion, the plurality of fins directing inflation fluid in a direction substantially parallel to the base portion. 8. The apparatus recited in claim 7, wherein the fins direct the inflation fluid in a direction normal to the inflation fluid outlets. 9. The apparatus recited in claim 8, wherein the fins direct a first portion of the inflation fluid in a direction along a first angle transverse to an axis of the cover portion and a second portion of the inflation fluid in a direction along a second angle substantially perpendicular to the first angle. 10. The apparatus recited in claim 7, wherein the fins are arcuate. 11. The apparatus recited in claim 7, wherein the fins are straight. 12. The apparatus recited in claim 1, wherein the base portion further includes a vent opening for venting inflation fluid from the protection device. 13. The apparatus recited in claim 1, wherein the plurality of openings consists of a first opening in the first half of the cover portion and a second opening in the second half of the cover portion larger than the first opening. 14. The apparatus recited in claim 13 further comprising a vent opening for venting inflation fluid from the protection device, the second opening being positioned between the first opening and the vent opening. 15. The apparatus recited in claim 1, wherein the inflation fluid engages the deflector portion and is directed away from the protection device secured to the base portion of the retainer to help prevent damage to the protection device. 16. The apparatus recited in claim 1, wherein the deflector portion covers at least 75% of an area of the inflation fluid outlets aligned with at least one of the plurality of openings. 17. The apparatus recited in claim 1, wherein the deflector portion deflects inflation fluid away from the protection device secured to the base portion of the retainer. 18. The apparatus recited in claim 1, wherein the plurality of openings is provided in the base portion and the top portion of the cover portion. 19. An apparatus for helping to protect an occupant of a vehicle, the apparatus comprising: an inflatable vehicle occupant protection device having an upper portion and a lower portion; an inflator having a flange and inflation fluid outlets, the inflator being actuatable to provide inflation fluid through the inflation fluid outlets to inflate the protection device; and a retainer for receiving the inflator, the retainer comprising: a base portion for clamping the flange of the inflator to a support member; and a cover portion having a deflector portion that extends transversely from the base portion and a top portion that extends transversely from the deflector portion, the cover portion having a first half including a plurality of openings and a second half including a plurality of openings, the openings in the first and second halves providing fluid communication between the inflation fluid outlets and the protection device, the deflector portion comprising discrete wall sections spaced about the periphery of the inflator and corresponding with at least one of the inflation fluid outlets, the deflector portion directing inflation fluid from the inflator into the protection device in a direction substantially parallel to a central axis of the inflator, the cover portion directing inflation fluid from the first half of the cover portion into the upper portion of the protection device at a first volumetric flow rate, the cover portion directing inflation fluid from the second half of the cover portion into the lower portion of the protection device at a second volumetric flow rate that is greater than the first volumetric flow rate. 20. The apparatus recited in claim 19, wherein the deflector portion comprises discrete sections associated with only the openings in the first half of the cover portion, each of the openings in the second half of the cover portion being associated with a fin for directing the inflation fluid exiting the second half of the cover portion in a plurality of directions relative to an axis of the cover portion extending across the first half and the second half.

이 특허에 인용된 특허 (14)

이 특허를 인용한 특허 피인용횟수: 1

Williams, Jeffrey D.. Airbag module assembly with cross-car gas diffusion. USP2016099440614.

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특허 상세정보

Inflatable vehicle occupant protection device with inflation fluid deflector

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이 특허에 인용된 특허 (14)

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Inflatable vehicle occupant protection device with inflation fluid deflector

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이 특허에 인용된 특허 (14)

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