A vehicular seat belt device includes a first pretensioner provided in a retractor and configured to apply tensile force to a shoulder belt portion of a webbing, a second pretensioner provided in a belt anchor part and configured to apply tensile force to a lap belt portion of the webbing, a third pretensioner provided in a side portion of the vehicle seat opposite to the belt anchor part and configured to apply tensile force to the lap belt portion via a buckle, and a controller. The controller is configured to activate the first pretensioner at a time of predicting vehicle collision, and activate the second pretensioner and the third pretensioner after detection of collision.

A restraint system for a utility vehicle comprising a first restraint including a first retractor coupled to the utility vehicle at a first retractor anchor point, a first webbing retractable into the first retractor and having a first end and a second end, a first latch moveably engaged with the first webbing, and a first latch receiver configured to receive the first latch, and a second restraint including a second retractor coupled to the utility vehicle at a second retractor anchor point, a second webbing extendable from and retractable into the second retractor and having a first end coupled to the second retractor and a second end, a second latch coupled to the second webbing, and a second latch receiver positioned at a second receiver anchor point and configured to receive the second latch and retain the second end of the second webbing adjacent the second receiver anchor point.

A restraint system for a utility vehicle comprising a first restraint including a first retractor coupled to the utility vehicle at a first retractor anchor point, a first webbing retractable into the first retractor and having a first end and a second end, a first latch moveably engaged with the first webbing, and a first latch receiver configured to receive the first latch, and a second restraint including a second retractor coupled to the utility vehicle at a second retractor anchor point, a second webbing extendable from and retractable into the second retractor and having a first end coupled to the second retractor and a second end, a second latch coupled to the second webbing, and a second latch receiver positioned at a second receiver anchor point and configured to receive the second latch and retain the second end of the second webbing adjacent the second receiver anchor point.

A multi-point seat belt system is applied to a seat of a vehicle and has a webbing locking device, an emergency locking-retracting mechanism, and two automatic locking retractors. The webbing locking device has a buckle assembly and a tongue assembly detachably disposed on the buckle assembly. The emergency locking-retracting mechanism is disposed on the seat and has two shoulder webbings connected to the buckle assembly and the tongue assembly respectively. The two automatic locking retractors are disposed on two sides of the seat and have two lower webbings connected to the buckle assembly and the tongue assembly respectively. The two shoulder webbings locked by the two emergency locking retractors and the two lower webbings tightened by the two automatic locking retractors are distributed around the body of the occupant and can fasten the occupant on the seat steadily for promoting the safety protection performance.

A vehicular seat belt device includes a first pretensioner provided in a retractor and configured to apply tensile force to a shoulder belt portion of a webbing, a second pretensioner provided in a belt anchor part and configured to apply tensile force to a lap belt portion of the webbing, a third pretensioner provided in a side portion of the vehicle seat opposite to the belt anchor part and configured to apply tensile force to the lap belt portion via a buckle, and a controller. The controller is configured to activate the first pretensioner at a time of predicting vehicle collision, and activate the second pretensioner and the third pretensioner after detection of collision.

A four-point seat belt device includes two shoulder belts to press the shoulders of a passenger sitting in a seat, a restraint element extending between the two shoulder belts, and a driving unit arrangement to perform winding of the belts upon detection of a collision.