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.

A vehicle seat is rotatable about an axis perpendicular to a vehicle floor from a forward-facing position to a rear-facing position. The seat includes a seat bottom and a seat back. A seat belt assembly extends at least partially from the seat back. At least one airbag is incorporated into the seat belt assembly and is deployable when the vehicle seat is rotated to at least one of the rear-facing position and a position between the forward-facing position and the rear-facing position.

A vehicle seat is rotatable about an axis perpendicular to a vehicle floor from a forward-facing position to a rear-facing position. The seat includes a seat bottom and a seat back. A seat belt assembly extends at least partially from the seat back. At least one airbag is incorporated into the seat belt assembly and is deployable when the vehicle seat is rotated to at least one of the rear-facing position and a position between the forward-facing position and the rear-facing position.

A utility vehicle is provided with a hip guard member disposed adjacent to a seat for a crew member and guarding the crew member sitting on the seat from outside in a vehicle width direction. The utility vehicle includes: a seat frame provided below the seat and supporting the seat; and a seatbelt apparatus configured to hold the crew member sitting on the seat. The seatbelt apparatus includes a retractor supporting an end of webbing so as to freely wind the webbing. The retractor is attached to the seat frame, and the retractor projects outward in the vehicle width direction from the hip guard member.

A utility vehicle is provided with a hip guard member disposed adjacent to a seat for a crew member and guarding the crew member sitting on the seat from outside in a vehicle width direction. The utility vehicle includes: a seat frame provided below the seat and supporting the seat; and a seatbelt apparatus configured to hold the crew member sitting on the seat. The seatbelt apparatus includes a retractor supporting an end of webbing so as to freely wind the webbing. The retractor is attached to the seat frame, and the retractor projects outward in the vehicle width direction from the hip guard member.

A seat belt device includes a buckle provided on a side portion of a seat for a vehicle, and configured such that a tongue plate is inserted into the buckle; a buckle force limiter mechanism connected to the buckle via a connecting member having an elongate shape, the buckle force limiter mechanism being configured to allow the buckle to move in a pulling direction when a tensile load equal to or larger than a predetermined tensile load is applied to the buckle; and a case covering the connecting member from an inner side in a seat width direction, the case having a corner at an upper end portion of the case, the corner facing the connecting member, and the corner having an arc shape.

A seat belt device includes a buckle provided on a side portion of a seat for a vehicle, and configured such that a tongue plate is inserted into the buckle; a buckle force limiter mechanism connected to the buckle via a connecting member having an elongate shape, the buckle force limiter mechanism being configured to allow the buckle to move in a pulling direction when a tensile load equal to or larger than a predetermined tensile load is applied to the buckle; and a case covering the connecting member from an inner side in a seat width direction, the case having a corner at an upper end portion of the case, the corner facing the connecting member, and the corner having an arc shape.

A reduction in the durability of a coupling member coupled to a buckle is suppressed. A lift-up buckle device includes a buckle that engages with a tongue inserted through webbing worn by an occupant, and wires that each have a portion fixed to the buckle and that are displaced to move the buckle. The lift-up buckle device also includes a wire guide that includes a guide groove that guides the wires, and a soft lower cover that engages with the wire guide and covers the wires. A dimension of an end portion on the buckle side of the guide groove is set so as to increase on progression toward the buckle side.

An improved occupant restraint system is provided which includes a torso support unit that provides external support to an upper torso of an individual, who may be the occupant of a vehicle exposed to upward acceleration events. The torso support system provides support to the occupant's upper torso including rib cage, arm pit, upper arm and/or shoulder region. This support can be accomplished by one or more straps, one or more bars, one or more hooks or any other support device(s) that are connected to structure of the vehicle, such as a seat or standing platform, and in turn connected to the upper torso of the occupant to transfer upward vehicle forces to various parts of the upper torso independently of the forces transferred to the lower body such as the feet, legs and seat through other vehicle structure. With such a torso support system, when an upward acceleration event occurs, the compressive forces impinging on the occupant's spinal column are reduced wherein the likelihood of occupant paralysis or death due to spinal and other acceleration-induced injuries are significantly reduced.