Patent ID: 8261637

Claim:
An improved redirection structure of a ratchet wrench, comprising: a driving head, which is disposed on the end part of the wrench and is formed with a longitudinal through hole; a connector body, which penetrates into and gets positioned in the longitudinal through hole of the driving head, is annularly formed with an accommodating room, is formed with a longitudinal accommodating groove from the center of one end inward to connect with the accommodating room, extends with a working head on the other end to be connected with a passive element, and has two concave parts on the inner wall of the longitudinal accommodating groove; a brake block, which is disposed in the accommodating room of the connector body, has at least an outer tooth on its outer edge, the outer tooth engaging with an inner tooth part formed annularly on the inner sidewall of the longitudinal through hole of the driving head, and has a notch therein, a limiting part on each side of the notch, and a positioning part near each of the limiting parts around the notch; and a knob, which has a toggle part and a redirection axle extended from the toggle part, the redirection axle penetrating into the longitudinal accommodating groove of the connector body and going into the notch of the brake block; wherein the redirection axle has a through axle hole opposite to the accommodating room of the connector body; a ball is disposed on the end of the axle hole near the connector body, an urging element is disposed on the end of the axle hole near the brake block; both ends of an elastic element in the axle hole urge against the ball and the urging element, respectively; the urging element is stopped by the two limiting parts to slide between the two positioning parts as the knob is turned; and when the urging element urges against the positioning parts, the ball on the opposite end of the urging element falls in and gets positioned in the concave part of the opposite side.