Patent ID: 6928908
Filing Date: 2005-08-16
Classification: B25B,B25G

Abstract:
1. A revolving screwdriver comprising: a forward ratchet device comprising a hollow, cylindrical seat and a ratchet shaft; and a hollow handle comprising a revolving cylinder including a plurality of axial, peripheral cartridges for receiving a plurality of hexagonal shanks having different tips, and a push rod adapted to push the shank out of the cartridge into the ratchet shaft; wherein the ratchet shaft is hollow and comprises a front end having a hexagonal cross-section, a rear end having circular cross-section, and a guide in the rear end thereof, the guide being aligned with a flat surface extended inwardly from the hexagonal front end of the ratchet shaft such that it automatically aligns one shank pushed out of the ratchet cylinder with the forward end of the ratchet shaft prior to pushing the shank out of the ratchet shaft for use; further wherein the guide comprises a first opening formed on the seat, a C-shaped plate having a central opening, and a ball disposed in the first opening, the ball having a first portion disposed in the seat and a second portion projected from the central opening when the plate is put on the seat.