Patent attributes
A shaft pushing device includes a driving mechanism with a threaded tube and a push rod movably extends through the threaded tube. A grasp mechanism has a first ring threadedly mounted to the threaded tube and a plurality of pawls are pivotably connected to the first ring. An adjusting mechanism has an adjusting nut threadedly mounted to the threaded tube and located between the first ring and the distal end of the push rod. A second ring is mounted to the adjusting nut and a plurality of stretch rods are pivotably connected between the pawls and the second ring. The push rod is driven to extend from the threaded tube to push against an end of the shaft and the pawls are pivoted to grasp the gear mounted to the shaft by operating the adjusting nut. The shaft is disengaged from the gear by the push rod.
