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 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 an upper surface and a lower surface of said pawl,
a depression defined in a rearward face of said pawl, and
a ledge formed in said lower surface of said pawl,
wherein said lower surface extends between said pawl front face and said pawl rearward face, and
d. a lever defining a first lip protruding therefrom and an arm protruding therefrom, said lever being disposed in said head in driving engagement with said pawl so that actuation of said arm of said lever drives said pawl between said first position and said second position, wherein said first lip is received by said pawl ledge, and said pawl moves both parallel to and perpendicular to a longitudinal center axis of said handle when ratcheting occurs.
2. The ratcheting tool of claim 1 , wherein said arm of said lever is adjacent an outer surface of said top end of said head.
3. A method of assembling a ratcheting tool, comprising:
a. providing a head and a handle attached to said head, said head having a top end and a bottom end and defining a cavity therein;
b. providing a gear defining a first plurality of teeth on an outer circumference thereof;
c. providing a pawl defining a second plurality of teeth on a front face of said pawl for engaging said first plurality of teeth, a depression defined in a rearward face of said pawl, and a ledge formed in a lower surface of said pawl, said lower surface extending between said pawl front face and said pawl rearward face;
d. providing a reversing lever defining a protruding lip and an arm;
e. inserting said protruding lip of said reversing lever into said cavity of said head from said top end of said head;
f. inserting said pawl into said cavity of said head from said bottom end of said head such that said protruding lip engages said ledge of said pawl; and
g. inserting said gear into said cavity of said head from said bottom end of said head such that said first plurality of teeth engages said second plurality of teeth,
wherein engagement of said protruding lip of said reversing lever with said ledge of said pawl prevents upward movement of said reversing lever out of said cavity toward said top end of said head.
4. The method of assembly of claim 3 , further comprising:
a. providing a pusher adapted to engage said depression of said pawl; and
b. inserting said pusher into a blind bore defined by said reversing lever after said protruding lip of said reversing lever is inserted into said cavity of said head,
wherein said pusher engages said depression defined by said pawl after said pawl is inserted into said cavity of said head.