Patent ID: 7055411

Claim:
An improvement in ratchet coupling means for a driving tool comprising: a handle having a stepped central bore; a driving member having a retaining ring at middle portion engaged with a circular depression in a control ring, a rectangular rear end inserted into the stepped central bore of said handle, a flat rectangular front end defined a pair of receiving spaces on top and underside for respectively receiving two pairs of checking blocks each of which has a first circular recess facing each other for respectively anchoring two ends of a pair of first springs and teeth on a sloped surface, a second circular recess in a lateral side for anchoring a second spring and a first steel ball and a pair of third recesses formed spaced apart in fore side of the flat rectangular front end for anchoring a pair of second steel balls respectively, said control ring having four stir bars diagonally positioned on inner periphery in addition to three separate positioning grooves formed therebetween; a cap shaped ratchet ring sleeved onto said driving member having teeth on an inner periphery engageable with the teeth of said checking blocks and a hexagon socket wrench centrally projected foreward from a front surface; a circular cap covering said ratchet ring, said driving member and eventually engaged with said control ring and connected by means of high frequency welding and having a central bore to permit said hexagon socket wrench passing through and projecting from said ratchet driving tool; thereby, rotating said control ring a distance to allow said ratchet driving tool to conduct a three-way fastening and unfastening a working object.