Independent redundant clutchless retractor

Abstract From the Canadian patent

Abstract of the Disclosure, A safety belt retractor having a pair of actuating means which are independently responsive or condition sensitive to acceleration of webbing withdrawal and to omnidirectional acceleration or deceleration of the vehicle. The condition sensed first actuates a pilot pawl and the pilot pawl mechanically and positively engages means which drive the locking pawl to prevent webbing withdrawal from the webbing drum or reel. The pilot pawl is cam activated by the relative movement between a flywheel and the shaft of the drum or reel as is sensed by sudden withdrawal force on the webbing, or upon relative delay of rotation or lag in the flywheel consequent to inertial …