Patent ID: 6053075
Filing Date: 2000-04-25
Classification: F16D,Y10T

Abstract:
A control device for controlling the locking and unlocking operations of a rotary disc with a gear wheel system, comprising; a ball recirculating screw-ring nut assembly including a ball recirculating screw rotatable and axially slidably engaged in a ring nut;a connection between said rotary disc and said ball recirculating screw such that said rotary disc is displaced axially together with said ball recirculating screw; anda device for driving said ball recirculating screw-ring nut assembly such that said ball recirculating screw is axially displaced between a first position in which said rotary disc is arranged for engaging a fixed gear wheel for blocking said rotary disc from rotation and a second position in which said rotary disc is arranged so that it is disengaged with the fixed gear wheel for permitting rotation of said rotary disc.