Patent ID: 9248556
Filing Date: 2016-02-02
CPC Classification: B25B

Claim Text:
1. A positioning device for a ratchet wrench comprising: a driving head connecting with a front end of an operating handle and including an accommodating cavity defined therein, a toothed groove arranged below the accommodating cavity, a slot formed on a rear end thereof and communicating with the accommodating cavity, wherein the slot has a depth equal to the accommodating cavity; the driving head also including an orifice obliquely extending downward from a central portion of a bottom end thereof and a horizontal notch defined on a rear end thereof, wherein a depth of the horizontal notch is equal to the slot; a rotatory block fixed in the driving head and including a first toothed section accommodated in the accommodating cavity and a second toothed section received in the toothed groove; an abutting member fixed in the slot and including an elastic steel ball retained in a rear end thereof, a plurality of locking teeth arranged around a front end thereof, an aperture formed on a bottom end thereof and corresponding to the orifice of the slot, and a resilient element mounted in the orifice and the aperture; a pushing post fixed in the horizontal notch of the driving head and including a peripheral recess defined around an outer rim of a central section thereof to correspond to the steel ball of the abutting member, wherein one end of the pushing post is screwed with a screwing element; a cover locked on the driving head by ways of plural locking elements to cover the abutting member and the pushing post.