Patent ID: 7240582
Filing Date: 2007-07-10
Classification: E05F,E05Y,E06B,Y10T

Abstract:
1. An override device for allowing manual operation of an output shaft normally driven by a motor, comprising manual actuating means, first drive means operated by said actuating means, second drive means driven by said first drive means and driving the output shaft only during the operation of said override device, power cut-off means adapted when operated to interrupt power to the motor, disengagement means which when operated allow the output shaft to rotate and allow said second drive means to drive the output shaft while the motor is not operating, said actuating means, when manually operated, first causing an engagement of said first and second drive means while causing said power cut-off means to cut power to the motor and said disengagement means to allow said second drive means to drive the output shaft, said actuating means then causing said first drive means to drive said second drive means and thus also the output shaft connected to said second drive means for manual operation of the output shaft.