A safety belt arrangement for a vehicle, with a belt force limiting unit which is constructed as a piston/cylinder assembly having a piston tube and a piston, which in the event of the belt force being limited is displaceable by a force limiting path in the piston tube, while expanding and plastically deforming the latter, whereby the belt force exerted on a vehicle occupant is limited to a predefined level of force. According to the invention, at least one tube element, which can be pushed telescopically onto the piston tube to form a double tube structure, is provided for setting the force level course over the force limiting path.

A safety belt arrangement for a vehicle, with a belt force limiting unit which is constructed as a piston/cylinder assembly having a piston tube and a piston, which in the event of the belt force being limited is displaceable by a force limiting path in the piston tube, while expanding and plastically deforming the latter, whereby the belt force exerted on a vehicle occupant is limited to a predefined level of force. According to the invention, at least one tube element, which can be pushed telescopically onto the piston tube to form a double tube structure, is provided for setting the force level course over the force limiting path.

A safety belt device configured for a vehicle may include a belt driving device disposed on a seat, connected to a waist belt in a state in which an occupant wears a seat belt, and moving the waist belt in a predetermined direction to allow the waist belt to wrap around the occupant's waist when the waist belt is positioned at a rear side and to allow the waist belt to be caught between an ankle and the waist of the occupant when the waist belt is moved forward thereof; and a controller receiving a signal generated according to an occurrence of a vehicle collision and controlling the belt driving device upon receiving the impact signal to allow the waist belt to be moved from the rear to the front.

A safety belt device configured for a vehicle may include a belt driving device disposed on a seat, connected to a waist belt in a state in which an occupant wears a seat belt, and moving the waist belt in a predetermined direction to allow the waist belt to wrap around the occupant's waist when the waist belt is positioned at a rear side and to allow the waist belt to be caught between an ankle and the waist of the occupant when the waist belt is moved forward thereof; and a controller receiving a signal generated according to an occurrence of a vehicle collision and controlling the belt driving device upon receiving the impact signal to allow the waist belt to be moved from the rear to the front.

A seatbelt and method of operating a seatbelt that allows webbing to slide between a lap portion and a torso portion through an unlocked weblock of a tongue assembly, and upon forces exerted on the webbing by an occupant, the weblock locking the webbing from movement between the lap and torso portions while flexing to allow for webbing payout in the torso portion.

There is provided a vehicle seat belt system including: webbing that has one end anchored to one seat width direction side surface of a vehicle seat or to a vehicle body, and that restrains an occupant seated in the vehicle seat; a retractor to which another end of the webbing is engaged and that is configured to take up the webbing, the retractor being provided with a pretensioner which, when activated, pulls in the webbing; a buckle, with which a tongue plate attached to the webbing can be engaged; a force limiter that allows the buckle to move to thereby reduce a tensile load acting on the webbing due to activation of the pretensioner; and a warning section that is configured to utilize movement of the buckle resulting from the force limiter to notify the occupant of an abnormality that the force limiter has been activated.

There is provided a vehicle seat belt system including: webbing that has one end anchored to one seat width direction side surface of a vehicle seat or to a vehicle body, and that restrains an occupant seated in the vehicle seat; a retractor to which another end of the webbing is engaged and that is configured to take up the webbing, the retractor being provided with a pretensioner which, when activated, pulls in the webbing; a buckle, with which a tongue plate attached to the webbing can be engaged; a force limiter that allows the buckle to move to thereby reduce a tensile load acting on the webbing due to activation of the pretensioner; and a warning section that is configured to utilize movement of the buckle resulting from the force limiter to notify the occupant of an abnormality that the force limiter has been activated.

A seatbelt and method of operating a seatbelt that allows webbing to slide between a lap portion and a torso portion through an unlocked weblock of a tongue assembly, and upon forces exerted on the webbing by an occupant, the weblock locking the webbing from movement between the lap and torso portions while flexing to allow for webbing payout in the torso portion.

A webbing adjustment device has a cover, a frame, a slider, and a guiding ring member. The frame is up and down moveably disposed in the cover. The slider is located in the cover, is moveably disposed in a body of the frame, and has a through slot formed through the slider. Webbing inserted through the through slot is locked or unlocked by a relative motion between the frame and the slider. The guiding ring member is detachably disposed on the cover, and has a guiding ring and a positioning element connected to the guiding ring. The webbing is inserted through the guiding ring. The cover is detachably hung on the guiding ring. The webbing adjustment device can lock the webbing automatically by the tension of the webbing.

A webbing adjustment device has a cover, a frame, a slider, and a guiding ring member. The frame is up and down moveably disposed in the cover. The slider is located in the cover, is moveably disposed in a body of the frame, and has a through slot formed through the slider. Webbing inserted through the through slot is locked or unlocked by a relative motion between the frame and the slider. The guiding ring member is detachably disposed on the cover, and has a guiding ring and a positioning element connected to the guiding ring. The webbing is inserted through the guiding ring. The cover is detachably hung on the guiding ring. The webbing adjustment device can lock the webbing automatically by the tension of the webbing.