Patent ID: 8272298

Claim:
A steering device for a ratchet screwdriver comprising: a base, the base adapted to be mounted on a front end of the ratchet screwdriver, the base having a receiving hole defined therein, two receiving grooves defined in the base and respectively positioned two sides of the receiving hole for communicating with receiving hole, a moving slot comparted from receiving hole and positioned between the two receiving grooves; a ratchet rod partially received in the base, the ratchet rod including a spindle and a ratchet wheel disposed on the spindle, the ratchet wheel having teeth annularly formed thereon, a distal end of the spindle having an inserting hole defined therein for adapting to receive a tool bit, the ratchet wheel received in the receiving hole; two blockers respectively received in the two receiving grooves, each blocker having unidirectional teeth formed on one end thereof for selectively engaging with the ratchet wheel and a spring engaging with the other end thereof for abutting against an inner wall of the receiving groove; a housing sleeved on the base, the housing having a housing hole defined therein and passing therethrough for allowing the spindle passing through the housing, the housing having a protrusion disposed on an interior thereof for inserting into the moving slot; and a frame mounted in the base and fitted with inner peripheries of the receiving hole, the receiving grooves and the moving slot, a metal material of the frame being different from that of the base, a hardness of the frame being greater than that of the base; wherein when the housing is rotated relative to the base, the protrusion is moved in the moving slot and is abutted against either one of the two blockers such that one blocker is detached from the ratchet wheel and the other blocker is engaged with the ratchet wheel for selectively steering a rotatable direction of the ratchet rod.