Patent ID: 6010426
Filing Date: 2000-01-04
Classification: B25F,Y10S,Y10T

Abstract:
An output shaft lock device comprising:a driving shaft;a driven shaft;connecting means for connecting said driving shaft to said driven shaft to thereby form an output shaft, said connecting means forming a play angle in the rotating directions of said driving shaft and said driven shaft for not transmitting power therebetween;a lock member disposed on said driven shaft;locking means provided in said connecting means and adjacent said driven shaft for moving said lock member to a locked position on said driven shaft;unlocking means provided in said connecting means and adjacent said driving shaft for moving said lock member to an unlocked position while said driving shaft is moved within said play angle, and by reverse rotation of said driving shaft relative to said driven shaft; anda planetary gear differential mechanism provided in said connecting means and comprising an internal gear, a planetary gear, a sun gear, and a carrier supporting said planetary gear, said carrier being coupled to said driven shaft and said sun gear being coupled to said driving shaft; whereindifferential action of said internal gear and said sun gear causes said unlocking means to move said lock member to said unlocked position when said driving shaft is rotated, and causes said locking means to move said lock member to said locked position.