摘要:
A vehicle occupant protection apparatus (10) includes an inflatable occupant protection device (38) and a support member (56) having a vent opening (78) through which inflation fluid may flow. A vent member (106) is movable relative to the support member (56) for varying a flow of inflation fluid through the vent opening (78). The vehicle occupant protection apparatus (10) also includes a tether (144) for moving the vent member (106) and an actuatable mechanism (170) that has a first condition preventing the tether (144) from moving the vent member (106) and a second condition enabling the tether (144) to move the vent member (106).
摘要:
An apparatus (10) includes an inflatable vehicle occupant protection device (14) and an inflator (16) for providing inflation fluid for inflating the protection device. The inflator (16) includes an inflation fluid control structure (100). The control structure (100) includes discharge openings (116) for directing inflation fluid into an inflatable volume (72) of the protection device (14) and vent openings (118) for venting inflation fluid outside the inflatable volume. The control structure (100) also includes a vent member (132) actuatable from an open condition permitting inflation flow through the vent openings (118) to a closed condition blocking inflation fluid flow through the vent openings.
摘要:
An apparatus (10) for helping to protect an occupant of a vehicle includes an inflatable vehicle occupant protection device (14). An inflation fluid source (18) is actuatable to provide inflation fluid for inflating an inflatable volume (16) of the protection device (14). The apparatus (10) also includes a reaction plate (20) that includes at least one vent opening (40) and a retainer (60) that is connectable with the reaction plate (20). A vent part (80) has a first condition blocking inflation fluid flow through the at least one vent opening (40) and a second condition permitting inflation fluid flow through the at least one vent opening. The apparatus (10) further includes an actuator (120) for moving the vent part (80) from one of the first and second conditions to the other of the first and second conditions. The vent part (80) has a portion (104) that maintains the vent part in the other of the first and second conditions when moved to the other of the first and second conditions.
摘要:
An apparatus for controlling flow of inflation fluid through a vent opening (50) in an air bag module (10) includes a vent member (14) movable to control flow of the inflation fluid through the vent opening. The vent member (14) includes a vent member opening (84) extending through the vent member. A tether (12) for controlling movement of the vent member (14) includes a first portion (90) and second portion (92). The second portion (92) is folded to form multiple layers (112, 114). The tether (12) is positioned relative to the vent member (14) so that the multiple layers (112, 114) of the second portion (92) engage a first side (62) of the vent member. The first portion (90) of the tether (12) extends through the vent member opening (50) and away from an opposite second side (60) of the vent member (14). The engagement of the second portion (92) with the vent member (14) causes the vent member (14) to move in response to movement of the tether (12).
摘要:
An air bag (12) includes at least one tether (44) and an inflation fluid source (14) having two modes of operation. In the first mode of operation, the inflation fluid source (14) is activated to provide a first inflation fluid pressure in the air bag (12). In the second mode of operation, the inflation fluid source (14) is activated to provide a second inflation fluid pressure in the air bag (12) higher than the first pressure. The tether (44), which helps to control the shape of the air bag (12), tears in response to the second inflation fluid pressure in the air bag.
摘要:
An air bag (12) is inflatable by inflation fluid. A support member (20) has a first vent opening (44) for enabling flow of inflation fluid away from the bag (12). A vent member (46) is movable relative to the first vent opening (44) between a first condition in which the vent member does not close the opening that enables flow of inflation fluid away from the bag (12) and a second condition in which the vent member at least partially blocks the flow of inflation fluid through the opening and away from the bag. A tether (50) has a first portion (52) connected for movement with the bag (12) as the bag is deployed. The tether (50) is associated with the vent member (46) and causes it to move relative to the opening (44) from the first condition to the second condition as the bag (12) is deployed.
摘要:
An air bag (10) has a deflated condition stored in a container (40) in a vehicle and has an inflated condition. The air bag (10) when in the inflated condition has lower and upper sections (64, 74). The air bag (10) has a first portion (60) forming the lower section (64) of the air bag, and a second portion (70) forming the upper section (74). The air bag (10) includes a back panel (82) disposed farthest from a vehicle occupant (22) and a front panel (80) disposed closest to the occupant. The first portion (60) of the air bag (10) is folded into a compact shape and stored in a lower portion (62) of the container (40). The second portion (70) of the air bag (10) is rolled into a compact shape and stored in an upper portion (72) of the container (40). The second portion (70) inflates upward and unrolls in a direction away from the occupant (22) so that the front panel (80) is presented toward the occupant. The first portion (60) of the air bag (10) inflates before the second portion (70).
摘要:
A vehicle occupant protection apparatus (10) comprises an inflatable device (14) for helping to protect an occupant of a vehicle during a crash condition. A support structure (18) secures a portion of the inflatable device (14). A plurality of tethers (34, 36, 38, and 40) extend between the support structure (18) and the inflatable device (14). At least one sensor (62, 64, 66, or 68) senses a vehicle occupant condition and generates an occupant condition signal indicative of the sensed condition. A control module (72) receives the occupant condition signal and determines a preferred inflation volume and shape for the inflatable device (14). The control module (72) determines which of the respective tethers (34, 36, 38, and 40) to release for inflating the inflatable device (14) to the preferred inflation volume and shape and initiates the release of the respective tethers (34, 36, 38, and 40) from the support structure (18).
摘要:
A vehicle occupant protection apparatus (10) comprises an inflatable vehicle occupant protection device (12) having a deflated condition and an inflated condition for helping to protect a vehicle occupant. An inflator (14) is actuatable to provide inflation fluid to inflate the protection device (12). A retainer (40) is connected with the protection device (12). One of the inflator (14) and the retainer (40) is movable between a first condition blocking venting of inflation fluid from the apparatus (10) and a second condition venting inflation fluid from the apparatus. The apparatus (10) includes an electrically energizable mechanism (80) to release the one of the inflator (14) and the retainer (40) for movement from the first condition to the second condition to vent inflation fluid from the apparatus. The apparatus (10) also includes vehicle electric circuitry (90) including a sensor (92) for sensing at least one occupant condition or vehicle condition and a controller (100) responsive to the sensor for controlling the electrically energizable mechanism (80).
摘要:
An inflatable vehicle occupant protection device (10) comprises flexible material defining an inflation fluid volume (42) for receiving inflation fluid. The material includes a first panel portion (30) on which is located a set of first points (A-D) and a second panel portion (40) on which is located a set of second points (A′-D′). A rupturable stitching section (50) holds the set of first points (A-D) closely adjacent the set of second points (A′-D′)when the device (10) is in the deflated condition and when the device is in a partially inflated condition. The rupturable stitching section (50) is rupturable in response to the application of a force greater than a predetermined force in response to inflation of the protection device (10). Rupturing of the stitching section (50) enables movement of the first panel portion (30) away from the second panel portion (40).