主权项 |
1. A grip assembly for a tool bit, the grip assembly comprising:
a grip having
an end; anda grip recess formed in the end of the grip; a driving device connected with the grip and having
a holding member inserted into the grip recess and having
a distal end;an outer surface;multiple gear recesses formed at intervals and radially in the outer surface of the holding member beside the distal end of the holding member; anda member hole axially formed through the holding member, and communicating with the gear recesses;a bearing securely mounted around the holding member;a gear unit connected with the holding member and having
multiple gears respectively and rotatably mounted in the gear recesses; anda rotatable ring mounted around and engaging the multiple gears, and having an outer surface;a bracket connected with the holding member, adjacent to the gear unit, and having
a plate mounted around the holding member; andmultiple shafts mounted through the plate of the bracket, and respectively and axially mounted through the multiple gears; anda rotatable sleeve securely mounted around the bearing, and engaging the outer surface of the ring; andan axle rotatably mounted in the member hole, engaged by the multiple gears, and having
a distal end; anda shank-receiving section formed at the distal end of the axle. |