Patent ID: 6609444
Filing Date: 2003-08-26
Classification: B25B

Abstract:
A ratchet tool comprising:a head having a through hole defined therethrough and a recess defined in an inner periphery of the through hole, an operation recess defined in a side of the head and communicating with the recess, a height difference being defined between an outside of the head and a neck, a ramp connected between the outside of the head and the neck of the tool, the ramp being tilt relative to the outside of the head and the neck; an engaging ring rotatably received in the through hole and having a toothed outer periphery; a pawl movably received in the recess and having a toothed side which is engaged with the toothed periphery of the engaging ring, and a switch member having a cylindrical portion inserted in the operation recess and a passage defined radially in the cylindrical portion of the switch member, a spring and a bead received in the passage, the spring engaged with a notch defined in a side of the pawl opposite to the toothed side, the bead engaged with one of two concavities defined in an inner periphery of the operation recess, a top plate connected to an end of the cylindrical portion of the switch member and a diameter of the top plate being larger than that of the operation recess so as to cover the operation recess, a lever extending from the top plate at an angle such that the lever is located in parallel with the ramp with a tiny gap defined therebetween.