In the present invention, a seatbelt device is provided with: a seat state determination unit that determines the state of a seat; a movable support section that supports a seatbelt within a range of possible movement on a seat back; a movement mechanism that, with a motor, moves the movable support section within the range of possible movement; and a motor control unit that controls the motor in accordance with the usage state of the seat determined by the seat state determination unit. Due to this configuration, the position of the seatbelt is made optimal for an occupant, and the comfort of the occupant is thus improved.

In the present invention, a seatbelt device is provided with: a seat state determination unit that determines the state of a seat; a movable support section that supports a seatbelt within a range of possible movement on a seat back; a movement mechanism that, with a motor, moves the movable support section within the range of possible movement; and a motor control unit that controls the motor in accordance with the usage state of the seat determined by the seat state determination unit. Due to this configuration, the position of the seatbelt is made optimal for an occupant, and the comfort of the occupant is thus improved.

A movable anchorage system for a seat belt, having a lockable slide mechanism comprising a slide extending in a longitudinal direction of adjustment, a slider system comprising at least one body configured to move in translation along the slide while being guided by the slide, the body incorporating an anchorage device for the seat belt, an actuator configured to ensure the movement of the slider system along the slide, a mechanism for locking the position of the slider system in the slide.

A movable anchorage system for a seat belt, having a lockable slide mechanism comprising a slide extending in a longitudinal direction of adjustment, a slider system comprising at least one body configured to move in translation along the slide while being guided by the slide, the body incorporating an anchorage device for the seat belt, an actuator configured to ensure the movement of the slider system along the slide, a mechanism for locking the position of the slider system in the slide.

A vehicle occupant restraint system for a seat of a vehicle. The system includes a first arm portion mountable on a first side of the seat, the first arm having an engaging portion; and a second arm portion mountable on a second side of the seat, the second arm having an engaging portion, the engaging portion of the first arm portion being engageable with the engaging portion of the second arm portion to restrain an occupant on the seat. At least one of the first arm portion and the second arm portion is adjustable relative to the seat.

A vehicle occupant restraint system for a seat of a vehicle. The system includes a first arm portion mountable on a first side of the seat, the first arm having an engaging portion; and a second arm portion mountable on a second side of the seat, the second arm having an engaging portion, the engaging portion of the first arm portion being engageable with the engaging portion of the second arm portion to restrain an occupant on the seat. At least one of the first arm portion and the second arm portion is adjustable relative to the seat.

In a lift-up buckle device, a worm wheel is engaged with a screw drive. When a worm is rotated in a forward direction and causes the screw drive to move downward, the worm moves the worm wheel downward. On the other hand, when the worm is rotated in a reverse direction and causes the screw drive to move upward, the worm moves the worm wheel upward. Consequently, the worm wheel may be stably engaged with the screw drive, and the worm wheel and worm may be stably mated.

In a lift-up buckle device, a worm wheel is engaged with a screw drive. When a worm is rotated in a forward direction and causes the screw drive to move downward, the worm moves the worm wheel downward. On the other hand, when the worm is rotated in a reverse direction and causes the screw drive to move upward, the worm moves the worm wheel upward. Consequently, the worm wheel may be stably engaged with the screw drive, and the worm wheel and worm may be stably mated.

Provided is a pre-tensioner for a seat belt, the pre-tensioner including a housing, a carrier disposed on a first surface of the housing, a fixing member connected to the carrier, a first pulley disposed in a first zone of the first surface of the housing, a second pulley disposed in a second zone of the first surface opposite to the first zone with respect to the carrier, a driving unit having at least a portion coupled to the second pulley, and a belt disposed to mesh with the first pulley, the second pulley, and the carrier.

Provided is a pre-tensioner for a seat belt, the pre-tensioner including a housing, a carrier disposed on a first surface of the housing, a fixing member connected to the carrier, a first pulley disposed in a first zone of the first surface of the housing, a second pulley disposed in a second zone of the first surface opposite to the first zone with respect to the carrier, a driving unit having at least a portion coupled to the second pulley, and a belt disposed to mesh with the first pulley, the second pulley, and the carrier.