Abstract: A power plant support device for a vehicle which includes a releasable first mount and second mount. The first mount has a releasing mechanism which releases a connection to the power plant upon an impact force larger than a predetermined impact force. The second mount rotatably supports the power plant and is located below the center of gravity of the power plant, but it has enough endurance to support against the predetermined impact force. When a front collision of the vehicle occurs and the power plant receives an impact force larger than the predetermined impact force, the connection between the first mount and the power plant is released and the power plant rotates about the second mount, so that the power plant moves away from a lower dash panel of the passenger compartment. Thus, the degree of crush of a framework of the vehicle increases and a larger shock can be absorbed.

Abstract: A passenger restraint system for use in an automotive vehicle comprises a collision detecting sensor for detecting a collision of the vehicle, a retractor with a preloader for providing a tension to a seat belt in response to a signal from the collision detecting sensor, and an air bag device. The air bag device includes a bag which is broken in response to the signal from the collision detecting sensor, thus forming a clearance between a passenger and a seat back.

Abstract: A seat belt system for use with a seat in a motor vehicle comprises a combination belt including a lap belt part and a shoulder belt part, the lap belt part and the shoulder belt part restraining respectively the lap and shoulder portions of a seat occupant when in use; a first mechanism for applying, upon a vehicle collision, the lap belt part with a certain tension thereby increasing the restraining force of the lap belt part; a thigh belt positioned in front of the lap belt part with respect to the seat, the thigh belt restraining the thigh portion of the seat occupant when in use; and a second mechanism for applying, upon the vehicle collision, the thigh belt with a certain tension thereby increasing the restraining force of the thigh belt.