Patent ID: 6148696
Filing Date: 2000-11-21
Classification: B25B

Abstract:
A ratchet screw driver comprising:a handle including a bore formed therein and including a first end having an engaging opening formed therein and communicating with said bore of said handle,a barrel including a stud extended therefrom and engaged into said engaging opening of said handle and moved in concert with said handle, said barrel including an orifice formed therein and communicating with said bore of said handle when said stud of said barrel is engaged into said engaging opening of said handle, said barrel including a pair of opposite passages formed therein and communicating with said orifice of said barrel,a gear rotatably received in said orifice of said barrel and including an aperture formed therein,a pair of pawls slidably received in said passages of said barrel for engaging with said gear,at least one driving stem selectively engaged into said bore of said handle through said aperture of said gear and said orifice of said barrel,means for biasing said pawls to engage with said gear andmeans for selectively disengaging said pawls from said gear,said at least one driving stem being allowed to be disengaged from said gear and said barrel,wherein said biasing means includes a biasing member engaged on said barrel and having two ends engaged into said passages of said barrel and engaged with said pawls for biasing said pawls to engage with said gear.