This invention is in the field of safety devices to lessen injuries arising from impact in vehicles, particularly automobiles. A bolster which may be employed to reduce impact severity to passengers from either frontal or side impacts is activated by impact sensing devices. The housing of the bolste
This invention is in the field of safety devices to lessen injuries arising from impact in vehicles, particularly automobiles. A bolster which may be employed to reduce impact severity to passengers from either frontal or side impacts is activated by impact sensing devices. The housing of the bolster has a lateral length L. Upon activation, the bolster is inflated with an activating fluid and extends the lateral length L of bolster upon activation.
대표청구항▼
1. An inflatable bolster, comprising: a housing defining a substantially closed main portion for, during pressurization, receiving a fluid under pressure, and further defining an occupant face and a mounting face;a source of the fluid under pressure; andat least one extension structure adjacent said
1. An inflatable bolster, comprising: a housing defining a substantially closed main portion for, during pressurization, receiving a fluid under pressure, and further defining an occupant face and a mounting face;a source of the fluid under pressure; andat least one extension structure adjacent said main portion, said extension structure having an auxiliary portion extending away from said main portion in a direction which is substantially perpendicular to said occupant face, whereinsaid housing includes a lateral length L in a direction substantially parallel to said occupant face, andsaid auxiliary portion moves hingedly relative to said main portion, for extending the lateral length L of said bolster upon pressurization of said bolster. 2. The bolster of claim 1, wherein said bolster is a unitary structure. 3. The bolster of claim 1, wherein said bolster is blow molded. 4. The bolster of claim 1, wherein said bolster comprises a plurality of said auxiliary portions. 5. The bolster of claim 1, wherein on pressurization, said occupant face is pushed away from said mounting face by expansion of said substantially closed volume by the fluid under pressure. 6. The bolster of claim 1, further comprising an expandable area at an intersection between said main portion and said auxiliary portion, said expandable area including at least one pleat. 7. The bolster of claim 6, wherein said at least one pleat is located so that upon pressurization of said housing, said pleat facilitates said hinged movement of said auxiliary portion. 8. The bolster of claim 1, wherein said bolster further comprises flow restriction means for permitting flow of the fluid under pressure from said main portion to said auxiliary portion. 9. The bolster of claim 8, wherein said flow restriction means includes at least one hollow rib. 10. The bolster of claim 9, wherein said at least one rib extends generally transversely of said bolster. 11. The bolster of claim 8, wherein said flow restriction means defines a flow path which is serpentine. 12. The bolster of claim 11, wherein said flow path extends along said pleat. 13. An inflatable bolster, comprising: a housing of unitary structure defining a substantially closed main portion for, during pressurization, receiving a fluid under pressure, the housing defining, both prior to and during pressurization, an occupant face and a mounting face, wherein the occupant face faces in substantially a same direction both prior to and during pressurization;a source of the fluid under pressure; andat least one extension structure provided on an end face of said housing, said at least one extension structure comprising at least one pleat which extends internally from said end face into the closed main portion of said bolster, and wherein upon pressurization of said bolster, said at least one pleat is pushed laterally outward relative to said end face, providing additional length to said bolster for use in energy absorption on contact with a vehicle occupant,wherein said housing includes a lateral length L in a direction substantially parallel to said occupant face. 14. The bolster of claim 13, wherein said bolster is blow molded. 15. The bolster of claim 13, wherein on pressurization, said occupant face is pushed away from said mounting face by expansion of said substantially closed main portion by the fluid under pressure.
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이 특허에 인용된 특허 (107)
Jayasuriya, A. Mangala M.; Saha, Nripen Kumar, Active armrest for side impact protection.
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