Patent ID: 8714055
Filing Date: 2014-05-06
Classification: B25B

Abstract:
1. A one-way ratchet wheel element, comprising: a body having a first hole disposed with a driving wheel and a second hole, wherein the central portion of the driving wheel is formed with a transmission part for rotating a rotating element, the outer surrounding surface of the driving wheel is formed with a first tooth part, the direction for the body to rotate the driving wheel is defined as a driving direction, the side of the second hole toward the driving direction has a shifting space, and the opposite wedge of the second hole on the other side of the shifting space is formed with an engaging tooth section composed of a plurality of continuous small teeth; and a driven wheel disposed in the second hole of the body, wherein the outer surrounding surface thereof is formed with a second tooth part to engage with the first tooth part and a blocking tooth part to engage with the engaging tooth section of the second hole, the driven wheel is driven by the driving wheel to roll toward the engaging tooth section on the opposite wedge on the other side of the shifting space, the blocking tooth part then engages with the engaging tooth part to form an engagement state, and when the body rotates opposite to the driving direction the blocking tooth part of the driven wheel rolls away from the engaging tooth section on the opposite wedge to enter an idle state.