Abstract: A system for sensing the presence of an object within a vehicle's passenger compartment including an occupant in a motor vehicle comprising of: one or more safety restraint device such as air bag or pretensioner for protecting the occupant during a crash, actuating device includes within the restraint device for activating the safety restraint device to protect an occupant during a collision; a first occupant sensor, fixedly positioned in the vehicle, for generating a reflected electric field within the passenger compartment for generating an output signal indicative of the presence of an object, the electric field being of predetermined size, wherein the presence of an object effects the reflected electric field causing a change in the output signal of the sensor, the sensor mounted on one of a vehicle's steering wheel assembly for driver position detection or instrument panel near the passenger air bag module for passenger position detection; a crash sensor coupled to electronic control unit for sensing an

Abstract: A retraction mechanism comprising: a winding housing having a wedge pusher member; a spool rotationally supported in the winding housing having webbing wound thereon; a rewind spring for rewinding webbing onto the spool; a sensor responsive to one of vehicle deceleration or web acceleration in excess of a determinable limit for pre-blocking the rotation of the spool prior to the initiation of web clamping; a support frame for rotationally supporting the winding housing, and a web clamping device supported in the support frame, in a deactivated condition, for clamping the webbing, wherein after the pre-blocking of the spool and in response to a continued force on the web the winding housing rotates urging the web pusher into engagement with the web clamping device to clamp the web therebetween.