摘要:
An air bag assembly for cushioning restraint of an occupant in a vehicle during an impact event. The air bag assembly includes an inflator (40) activatable to discharge inflation gas upon the occurrence of predetermined vehicle conditions and an air bag cushion (20) in fluid communication with the inflator (40) such that upon discharge of inflation gas from the inflator the air bag cushion (20) is inflated to a deployed state from a location of deployment in substantially opposing relation to the occupant. One or more profile restraining tether elements (30) extend from locations on the air bag cushion to an anchor structure (48) so as to shorten the operative length of the profile restraining tether elements. An actuation mechanism (36) activatable in response to a signal from a sensor measuring occupant conditions is used to release the tether elements (30) from the anchor structure (48) thereby extending the operative profile of the air bag cushion (20) upon the occurrence of predetermined occupant conditions. The air bag assembly further comprises an actuatable variable inflation device to control the amount of inflation gas discharged into the air bag cushion, wherein the actuatable variable inflation device comprises a vent blocking member (85) alignable with a vent opening (43) within a housing (42) in which the inflator is disposed, the vent blocking member being moveable relative to the vent opening upon activation of the actuation mechanism (36) thereby adjusting the effective venting area of the vent opening.
摘要:
An air bag assembly for cushioning restraint of an occupant (14) in a vehicle (10) during an impact event. The air bag assembly includes an inflator (40, 40'; 140, 140') activatable to discharge inflation gas upon the occurrence of predetermined vehicle conditions and an air bag cushion (20, 20', 120, 120') in fluid communication with the inflator (40, 40', 140, 140') such that upon discharge of inflation gas from the inflator (40, 40', 140, 140') the air bag cushion (20, 20', 120, 120') is inflated to deployed state from a location of deployment in substantially opposing relation to the occupant (14). One or more profile restraining tether elements (30, 30', 130, 130') extend from locations on the air bag cushion to an anchor structure (48, 48', 148, 148') so as to shorten the operative length of the profile restraining tether elements (30, 30', 130, 130'). An actuation mechanism (36, 36', 136) activatable in response to a signal from a sensor (22, 24, 26, 27) measuring occupant conditions is used to release the tether elements (30, 30', 130, 130') from the anchor structure (48, 48', 148, 148') thereby extending the operative profile of the air bag cushion (20, 20', 120, 120') upon the occurrence of predetermined occupant conditions.
摘要:
A variable tether system (28) adapted for use in an inflatable cushion (20) of an airbag module (14) having a first pair of tether elements (34) each having a first end (38) and a second end (44), the first ends each being secured to inner portions (40) of the inflatable cushion and the second ends each being secured to inner portions (46) of the inflatable cushion, the first ends each being secured to the inflatable cushion at positions remote from the second ends and the second ends being secured to the inflatable cushion at a location closer to an inflation opening of the inflatable cushion than the first ends, wherein each of the first pair of tether elements has a portion between each of the first and second ends which is not secured to the inflatable cushion; and a second pair of tether elements each having a first side and a second side, the first side of one of said second pair of tether elements being secured to a portion of one of the first pair of tether elements and the first side of the other one of the second pair of tether elements being secured to the portion of the other one of the first pair of tether elements and the second sides are configured for being releasably secured to an actuation mechanism (48).
摘要:
An air bag assembly for cushioning restraint of an occupant (14) in a vehicle (10) during an impact event. The air bag assembly includes an inflator (40, 40'; 140, 140') activatable to discharge inflation gas upon the occurrence of predetermined vehicle conditions and an air bag cushion (20, 20', 120, 120') in fluid communication with the inflator (40, 40', 140, 140') such that upon discharge of inflation gas from the inflator (40, 40', 140, 140') the air bag cushion (20, 20', 120, 120') is inflated to deployed state from a location of deployment in substantially opposing relation to the occupant (14). One or more profile restraining tether elements (30, 30', 130, 130') extend from locations on the air bag cushion to an anchor structure (48, 48', 148, 148') so as to shorten the operative length of the profile restraining tether elements (30, 30', 130, 130'). An actuation mechanism (36, 36', 136) activatable in response to a signal from a sensor (22, 24, 26, 27) measuring occupant conditions is used to release the tether elements (30, 30', 130, 130') from the anchor structure (48, 48', 148, 148') thereby extending the operative profile of the air bag cushion (20, 20', 120, 120') upon the occurrence of predetermined occupant conditions.
摘要:
An air bag assembly for cushioning restraint of an occupant in a vehicle during an impact event. The air bag assembly includes an inflator (40) activatable to discharge inflation gas upon the occurrence of predetermined vehicle conditions and an air bag cushion (20) in fluid communication with the inflator (40) such that upon discharge of inflation gas from the inflator the air bag cushion (20) is inflated to a deployed state from a location of deployment in substantially opposing relation to the occupant. One or more profile restraining tether elements (30) extend from locations on the air bag cushion to an anchor structure (48) so as to shorten the operative length of the profile restraining tether elements. An actuation mechanism (36) activatable in response to a signal from a sensor measuring occupant conditions is used to release the tether elements (30) from the anchor structure (48) thereby extending the operative profile of the air bag cushion (20) upon the occurrence of predetermined occupant conditions. The air bag assembly further comprises an actuatable variable inflation device to control the amount of inflation gas discharged into the air bag cushion, wherein the actuatable variable inflation device comprises a vent blocking member (85) alignable with a vent opening (43) within a housing (42) in which the inflator is disposed, the vent blocking member being moveable relative to the vent opening upon activation of the actuation mechanism (36) thereby adjusting the effective venting area of the vent opening.