Direction-changeable structure of hand tool handle

Details Direction-changeable structure of hand tool handle Direction-changeable structure of hand tool handle

1986-12-30

1987-09-29

Schmidt, Frederick R.

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

81 631, B25B 1300

Patent

active

046962085

ABSTRACT:
A direction-changeable structure of the hand tool handles comprises mainly a body, a coupling tube, and a sleeve. The hand tools of different functions, such as screw driver, thread tapper, socket wrench, etc., can be fixed on the front of the body by a chuck, chucking blocks and a clip to function differently. The body is fixed inside a coupling tube by an arc key which is placed in a key way forming in the inside of the coupling tube. Having a direction selective mechanism attached to it, the main function of the coupling tube is to transmit torque and to select torque transmission direction. The coupling tube can insert into a sleeve which can receive every parts constituting the device according to this invention and fix them together. A handle bar can pass the holes forming in the coupling and sleeve to transmit large torque if necessary.

REFERENCES:
patent: 593157 (1897-11-01), Furbish
patent: 1127007 (1915-02-01), Jennings
patent: 1457570 (1923-06-01), Guthard
patent: 1563178 (1925-11-01), Fegley et al.
patent: 1679299 (1928-07-01), Fegley et al.

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