Patent ID: 7089829

Claim:
A multi-functional ratchet wrench comprising: a wrench body ( 60 ) having a head ( 601 ) with a front, a rear and a cavity ( 62 ); and a handle ( 602 ) extending from the head ( 601 ); a ratchet ( 70 ) rotatably mounted in the cavity ( 62 ) and having a front side, a rear side and a toothed outer edge; a pawl ( 80 ) mounted in the cavity ( 62 ) and selectively engaging the toothed outer edge of the ratchet ( 70 ); a lug connector formed on one side of the ratchet ( 70 ) and protruding from the head ( 601 ); a trigger ( 90 ) connecting to the pawl ( 80 ) to selectively engage the pawl ( 80 ) with the ratchet ( 70 ) to determine rotating in two directions; and a socket connector ( 10 ) formed on the other side of the ratchet ( 70 ) and comprising: a connecting tube ( 20 ) being cylindrical and having a proximal end ( 201 ) formed on the ratchet ( 70 ), a distal end ( 202 ), an outer surface, an inner channel ( 22 ) defined coaxially inside the connecting tube ( 20 ) and extending to the distal end ( 202 ) and a tapered ball recess ( 24 ) defined radially through the connecting tube ( 20 ) between the abutting end ( 201 ) and the distal end ( 202 ) and communicating with the inner channel ( 22 ); an outer collar ( 30 ) being tubular, mounted slidably around the connecting tube ( 20 ) and having an inner end ( 32 ), an outer end ( 34 ), an outer surface, an inner surface, a spring recess ( 322 ) defined in the inner surface near the inner end ( 32 ) and a ball dent ( 36 ) being annular and defined in the inner surface; and a latching device clamped between the outer collar ( 30 ) and the connecting tube ( 20 ) and comprising a ball ( 40 ) mounted inside the tapered ball recess ( 24 ) and partially protruding into the inner channel ( 22 ); a spring ( 44 ) mounted inside the spring recess ( 322 ) s around the connecting tube ( 20 ) to provide a restitution force to the outer collar ( 30 ); and a washer ( 42 ) mounted around the outer surface of the connecting tube ( 20 ) to hold the spring ( 44 ) inside the tapered spring recess ( 322 ).