An airbag can include active vents to manage the pressure within the airbag when deployed. The active vent can be at least partially controlled by using a tether. A tether separator can be configured to separate the tether. The tether separator can include an explosive. The tether separator can be operatively positioned relative to the tether such that, when the tether separator is activated, the explosive produces shockwaves and/or heat energy. The shockwaves and/or the heat energy can cause the tether to be separated into two pieces. In some instances, a portion of the tether can be held in tension to facilitate the separation of the tether.

The airbag comprises an outer skin (20) having a first opening (26), a flap (32) being at least indirectly attached to the outer skin (20), and a tether (37). The first end of the tether is attached to a flap (32) and the second end (37b) of the tether is detachably attached to a holding element (16). When the airbag is deployed and the tether (37) is under tension, the flap (32) covers the first opening (26) at least partially such that the ventilation device is in a closed or throttled first state. When the airbag is deployed and the tether (37) is not under tension because the second end (37b) of the tether is detached from the holding element, the flap (32) covers the first opening (26) less than in in the first state, such that the ventilation device is in second state. The flap (32) is located between the outer skin (20) and an additional layer (34) having a second opening (36) at least partially overlapping the first opening (26).

An airbag control device for controlling the volume of an airbag (10) of a restraining means, comprising an inflator (14) for inflating the airbag (10) and an electrically controllable decoupling device (22) for tension means via which the geometry of the airbag (10) can be varied, is characterized in that the inflator (14) and the decoupling device (22) are fluid-communicated and the decoupling device (22) includes at least one outlet opening (36) the cross-section of which is variable by an electrically controllable actuator (46) and through which gas can escape from the inflator (14) to the atmosphere. Moreover, the invention describes an airbag unit.

An active vent mechanism for an airbag apparatus that includes a first vent hole formed in an airbag and a patch capable of releasing and closing the first vent hole. A portion of the patch is coupled to the outer surface of the airbag. The airbag apparatus includes a coupling member having one end coupled to the patch and the other end entering the airbag and coupled to the airbag. A portion of the patch or a portion of the coupling member penetrates through an opening in the vicinity of the first vent hole. The airbag apparatus includes a substantially cylindrical regulating member into which the coupling member is inserted inside the airbag. The regulating member has a first end coupled to the inner surface of the airbag so as to surround the opening inside the airbag and a second end coupled to the coupling member in a sealed state.

An air-bag apparatus includes: a bag body that is provided on a vehicle seat and that is inflated and expanded at a time of an impact input and prevents at least an upper part of a body of an occupant seated on the vehicle seat from being separated from a seat back of the vehicle seat; an inflator that supplies a gas to the bag body at a time of an impact input; a body size detection part that detects a body size of the occupant seated on the vehicle seat; and an expansion degree adjustment part that adjusts a degree of an inflation expansion of the bag body in accordance with the body size of the occupant detected by the body size detection part.

Disclosed herein is an airbag device that includes an airbag cushion inflated as a working gas is introduced thereinto, a partition installed inside the airbag cushion to partition the airbag cushion into a first chamber facing an occupant's head and a second chamber adjacent to the first chamber, and a deployment adjustment section configured to pass through the partition, to interconnect the first chamber and the second chamber, and to guide deployment of the second chamber.

An airbag assembly includes a housing and a side airbag inflatable to an inflated position. The side airbag in the inflated position has an upper lobe and a lower lobe supporting the upper lobe on the housing. The side airbag includes an internal panel between the upper lobe and the lower lobe. A tether has a first end anchored to the housing and a second end anchored to the upper lobe.

An airbag having an exhaust hole and an opening/closing control device configured to control opening and closing of the exhaust hole are provided. The airbag includes a bag body, and a discharge portion having the exhaust hole, the discharge portion is configured to maintain a blocked state of the exhaust hole by being drawn into the bag body at the time of inflation of the bag body in a state where connection between a connection member and the opening/closing control device is maintained, and to be inflated by protruding from the bag body at the time of inflation of the bag body in a state where the connection between the connection member and the opening/closing control device is released to open the exhaust hole. A dummy inflation portion inflated to partially protrude from the bag body is formed at a position approximately symmetrical to the discharge portion. A volume of the dummy inflation portion at the time of inflating completion is set to be smaller than a volume of the discharge portion in a state where the exhaust hole is open at the time of inflation.

An actuator assembly that includes an actuator device. The actuator device includes a tubular housing with a first end and a second end, the tubular housing defining a storage chamber containing a pyrotechnic material to produce gas. At least one electrical connection is coupled to the first end, the electrical connection in reaction initiating communication with the pyrotechnic material. An actuator housing that partially encompasses the tubular housing, wherein an outer surface of the actuator housing comprises a hexagon shaped portion that extends along a longitudinal direction of the actuator housing. An assembly housing at least partially encompasses the actuator device, wherein an inner surface of the assembly housing comprises an engaging surface portion that extends along a longitudinal direction of the assembly housing that corresponds to and slidably engages with the hexagon shaped portion of the actuator housing.

A curtain airbag for a vehicle may include: a main chamber installed between a headliner and a vehicle body and provided to be downwardly unfolded to the interior of the vehicle; a diffuser being provided at an inlet portion of the main chamber connected with an inflator, formed with a first outlet and a second outlet which receive and discharge gas from the inflator; and an additional chamber connected with the second outlet of the diffuser and communicated with the second outlet to receive gas from the diffuser and inflated between the headliner and the vehicle body to separate the headliner from the vehicle body. In particular, the diffuser includes a joined portion to close partially or fully the first outlet, and the diffuser increases the gas supply to the main chamber when the joined portion is opened by an internal pressure of the diffuser.