A webbing height adjustment device is applied to connect to a webbing of a seat belt system. The webbing height adjustment device has a top ring member, a locking assembly, and a positioning member. The locking assembly is moveably disposed outside the top ring member. The positioning member is disposed on the side surface of the top ring member, is clutched with the locking assembly, and has a positioning element and at least one combining portion. The positioning element is disposed on the top ring member. The at least one combining portion is disposed on the positioning element and selectively and magnetically attracts the locking assembly for positioning. The webbing height adjustment device is easy to operate and automatically locks the webbing. The webbing height adjustment device can be adjusted continuously and occupies little space when not in use.

In the present invention, a seatbelt device is provided with: a seat state determination unit that determines the state of a sea 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.

An assembly includes a vehicle pillar elongated along an axis. The assembly includes seatbelt retractor and a webbing retractably extendable from the retractor. The seatbelt retractor is lockable from an unlocked position in which the webbing is extendable from and retractable into the retractor to a locked position in which the retractor restricts extension of the webbing from the retractor. A seatbelt guide is supported by the pillar. The seatbelt retractor is below the seatbelt guide. The webbing extends upwardly from the seatbelt retractor around the seatbelt guide. A releasable connection connects the seatbelt guide to the pillar when the seatbelt retractor is in the unlocked position and releases the seatbelt guide relative to the pillar when force on the webbing exceeds a threshold when the seatbelt retractor is in the locked position. An energy absorber is between the vehicle pillar and the seatbelt guide.

An assembly includes a vehicle pillar elongated along an axis. The assembly includes seatbelt retractor and a webbing retractably extendable from the retractor. The seatbelt retractor is lockable from an unlocked position in which the webbing is extendable from and retractable into the retractor to a locked position in which the retractor restricts extension of the webbing from the retractor. The assembly includes a frame supported by the pillar and defining a slot elongated along the axis of the pillar. The slot has a terminal upper end. The assembly includes a seatbelt guide slideably engaged with the slot. The seatbelt retractor is below the seatbelt guide. The webbing extends upwardly from the seatbelt retractor around the seatbelt guide. The assembly includes a spring between the frame and the seatbelt guide. The spring biases the seatbelt guide against the terminal upper end of the slot.

An assembly includes a vehicle pillar elongated along an axis. The assembly includes seatbelt retractor and a webbing retractably extendable from the retractor. The seatbelt retractor is lockable from an unlocked position in which the webbing is extendable from and retractable into the retractor to a locked position in which the retractor restricts extension of the webbing from the retractor. A seatbelt guide is supported by the pillar. The seatbelt retractor is below the seatbelt guide. The webbing extends upwardly from the seatbelt retractor around the seatbelt guide. A releasable connection connects the seatbelt guide to the pillar when the seatbelt retractor is in the unlocked position and releases the seatbelt guide relative to the pillar when force on the webbing exceeds a threshold when the seatbelt retractor is in the locked position. An energy absorber is between the vehicle pillar and the seatbelt guide.

Shock absorbing seat belt height adjusters for use with vehicle occupant restraint systems, and associated systems and methods are disclosed herein. In one embodiment, a shock absorbing height adjuster can be attached to a vehicle frame between an upper anchor point and a lower anchor point adjacent to an occupant's shoulder. The height adjuster can include a web clamp that locates a D-ring for positioning a shoulder web portion of the restraint web at a desired height that is comfortable for the occupant. Additionally, the height adjuster can include an anti-cinch feature that can elastically extend in response to tension loads in the shoulder web portion, thereby reducing shock loads from being transmitted to the seat occupant from the shoulder web portion.

An assembly includes a webbing. The assembly includes a first webbing guide receiving the webbing. The assembly includes a second webbing guide receiving the webbing and releasably secured to the first webbing guide. The assembly includes an actuator. The assembly includes a cable secured to the actuator and to the second webbing guide.

An apparatus for tensioning an occupant restraint harness coupled to an occupant seat mountable in a motor vehicle, wherein the occupant restraint harness includes first and second lap webs securable about an occupant of the seat, may include a web tensioning device configured to be attached to a rear side of the occupant seat, the web tensioning device having an actuated state and an unactuated state, and a mechanical movement converter configured to be attached to the rear side of the occupant seat and having an input operatively coupled to the web tensioning device, a first output coupled to the first lap web and a second output coupled to the second lap web, the mechanical movement converter responsive to a transition of the web tensioning device from the unactuated state to the actuated state to simultaneously apply tension to the first and second lap webs.

A vehicle includes a first post and a second post spaced cross-vehicle from the first post. The vehicle includes a vehicle roof above the first post and the second post. The vehicle includes a first track supported by the vehicle roof, a second track supported by the first post, and a third track supported by the second post. The vehicle includes a seatbelt assembly including a retractor slidably engaged with the first track, an anchor slidably engaged with the second track, and a buckle slidably engaged with the third track.

An assembly includes a vehicle pillar elongated along an axis. The assembly includes seatbelt retractor and a webbing retractably extendable from the retractor. The seatbelt retractor is lockable from an unlocked position in which the webbing is extendable from and retractable into the retractor to a locked position in which the retractor restricts extension of the webbing from the retractor. The assembly includes a frame supported by the pillar and defining a slot elongated along the axis of the pillar. The slot has a terminal upper end. The assembly includes a seatbelt guide slideably engaged with the slot. The seatbelt retractor is below the seatbelt guide. The webbing extends upwardly from the seatbelt retractor around the seatbelt guide. The assembly includes a spring between the frame and the seatbelt guide. The spring biases the seatbelt guide against the terminal upper end of the slot.