Ratchet wrench
View Patent ↗A ratchet wrench has a through cavity in which a reversing lever is disposed. The reversing lever has a pair of protruding lips formed thereon opposite from one another. A cooperating ledge is formed on the head in the cavity and on the pawl which is adjacent to the reversing lever. A spring-loaded pusher is disposed longitudinally in a blind bore in the reversing lever and the pusher engages a pocket in the pawl. A cover plate is disposed on a shelf recessed on the bottom of the wrench and spaced apart from the reversing lever.
1. A ratcheting tool, said ratcheting tool comprising:
a. a head and a handle attached to said head, said head having a top end and a bottom end;
b. a through cavity defined in said head;
c. a gear disposed in said through cavity distal from said handle, said gear defining a first plurality of teeth on an outer circumference thereof;
d. a pawl disposed in said through cavity intermediate said gear and said handle so that said pawl is slidable laterally across with respect to said gear between
a first position in which said pawl is disposed between said head and said gear so that said head transmits torque through said pawl in a first rotational direction, and
a second position in which said pawl is disposed between said head and said gear so that said head transmits torque through said pawl in an opposite rotational direction,
said pawl defining
a second plurality of teeth on a front face of said pawl for engaging said first plurality of teeth, said front face extending between a top and a bottom end of said pawl,
a recessed portion defined in a back face of said pawl, and
a ledge formed in said pawl recessed portion adjacent said pawl bottom end,
wherein said pawl bottom end extends between said pawl front face and said pawl back face, and
e. a lever disposed in said through cavity intermediate said pawl and said handle, said lever being in driving engagement with said pawl so that actuation of said lever drives said pawl between said first position and said second position, said lever defining a first lip protruding therefrom that is received by said pawl ledge.
2. The ratcheting tool of claim 1 , said ratcheting tool further comprising a spring loaded pusher disposed in said reversing lever, said spring-loaded pusher engaging said pawl recessed portion above said pawl ledge.
3. The ratcheting tool of claim 2 , said reversing lever further comprising a blind bore, said blind bore receiving said spring-loaded pusher.
4. The ratcheting tool of claim 1 , wherein said reversing lever has a front portion that is cut away to accommodate the insertion of said reversing lever into said through cavity from said top end of said head.
5. The ratcheting tool of claim 2 , wherein said spring-loaded pusher has a substantially conical tip that is received by said pawl recessed portion proximate said pawl ledge.
6. The ratcheting tool of claim 1 , further including a cover plate removably disposed on a shelf recessed on said bottom end of said head, said cover plate being spaced from said reversing lever and serving as a dirt shield.
7. A ratcheting tool, said ratcheting tool comprising:
a. a head and a handle attached to said head, said head having a top end and a bottom end;
b. a gear rotatably disposed in said head, said gear defining a first plurality of teeth on an outer circumference thereof;
c. a pawl disposed in said head so that said pawl is slidable both laterally across and radially with respect to said gear between
a first position in which said pawl is disposed between said head and said gear so that said head transmits torque through said pawl in a first rotational direction, and
a second position in which said pawl is disposed between said head and said gear so that said head transmits torque through said pawl in an opposite rotational direction,
said pawl defining
a second plurality of teeth on a front face of said pawl for engaging said first plurality of teeth, said front face extending between a top and a bottom end of said pawl,
a recessed portion defined in a back face of said pawl, and
a ledge formed in said pawl recessed portion adjacent said pawl bottom end,
wherein said pawl bottom end extends between said pawl front face and said pawl back face, and
d. a lever disposed in said head in driving engagement with said pawl so that actuation of said lever drives said pawl between said first position and said second position, said lever defining a first lip protruding therefrom that is received by said pawl ledge,
wherein said pawl moves both parallel to and perpendicular to a longitudinal center axis of said handle when ratcheting occurs.
8. The ratcheting tool of claim 7 , said ratcheting tool further comprising a pusher and a spring disposed in said reversing lever, said pusher engaging said pawl recess above said pawl ledge.
9. The ratcheting tool of claim 8 , said reversing lever further comprising a blind bore, said blind bore receiving said pusher and spring.
10. The ratcheting tool of claim 7 , wherein said reversing lever has a recessed front portion to accommodate the insertion of said reversing lever into said head from said head top end.
11. The ratcheting tool of claim 8 , wherein said pusher has a substantially conical tip that is received by said paw recessed portion proximate said pawl ledge.