Ratchet adapter for strap tensioner

摘要

An adapter for coupling a lever to continuously unidirectionally drive a strap fastener is disclosed. The adapter includes a U-shaped frame with two free ends and a junction. The two free ends are separately provided with two shaft holes. Two sliding slots are separately formed near the shaft holes. A lever hole is formed at the junction. A ratchet shaft has an outer section with a radial hole and an inner section inserted in the shaft holes. A bolt is inserted into the radial hole. A ratchet is mounted around the ratchet shaft. A pawl is slidably disposed between the two sliding slots for engaging with the ratchet. A spring stopper is fixed between two sides of the frame. A spring is compressively arranged between the pawl and spring stopper. A holed plate is fixed between the spring stopper and the junction.

主权项

1. A ratchet adapter for a strap fastener, comprising:
a frame, being of a U-shaped body having a junction and two sides, each side having a free end, each free end being separately provided with a shaft hole, a sliding slot being separately formed near each of the respective shaft holes, and a lever hole being formed at the junction; a ratchet shaft, having an outer section with a radial hole and an inner section axially inserted in the shaft holes; a bolt, inserted into the radial hole; a ratchet, integratedly mounted around the ratchet shaft; a pawl, slidably disposed between the two sliding slots of the frame for engaging with the ratchet, and having a tongue toward the junction; a spring stopper, fixed between the two sides of the frame; a spring, compressively arranged between the tongue of the pawl and the spring stopper to make the pawl flexibly movable within the sliding slots; and a holed plate, fixed between the spring stopper and the junction, and having an inserting hole coaxial with the lever hole.