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 seat system includes a seat including a seat back and a seat base and a passive restraint system mounted adjacent to the seat. The passive restraint system includes a lap belt. A belt adjuster is mounted at the seat. The belt adjuster includes a member operable to engage and shift the lap belt away from the seat back upon being exposed to a selected deceleration force.

A vehicle seat system includes a seat including a seat back and a seat base and a passive restraint system mounted adjacent to the seat. The passive restraint system includes a lap belt. A belt adjuster is mounted at the seat. The belt adjuster includes a member operable to engage and shift the lap belt away from the seat back upon being exposed to a selected deceleration force.

An assembly includes a rod, a tube slidably supported by the rod, a seatbelt buckle supported by the tube, and a lock. The tube and the rod are releasably engageable to each other by the lock.

An assembly includes a rod, a tube slidably supported by the rod, a seatbelt buckle supported by the tube, and a lock. The tube and the rod are releasably engageable to each other by the lock.

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.

In a seatbelt device, a guide face of a guide section of a base member of a support device is configured by a flat inclined face that is displaced toward a seat lower side on progression toward a seat left side. Accordingly, a slider is capable of sliding smoothly toward a seat right side end of a permitted slide range of the slider under urging force of a compression coil spring when an increase in tension on a webbing due to actuation of a motor in a vehicle emergency is released.