Torque-controlling ratchet connector structure

Details Torque-controlling ratchet connector structure Torque-controlling ratchet connector structure

1996-01-03

1996-11-19

Chilcot, Richard

Measuring and testing

Dynamometers

Responsive to torque

81473, B25B 2300

Patent

active

055765017

ABSTRACT:
A torque-controlling ratchet connector structure including a main body, a torque mechanism exerting a torque onto a screwdriver bit for rotating the same, a pressure adjustment mechanism for adjusting the torque, a first and a second ratchet wheels selectively clockwise or counterclockwise rotatable and a connector adapted to connect with various screwdriver bits. The torque mechanism includes a toothed disk rotatable along with the main body. By means of the pressing of a pressing plate and a spring of the pressure adjustment mechanism, the first and second ratchet wheels and a washer are forced, making steel balls exert pressure onto the toothed disk so as to rotarily drive a rotary shaft fitted in the hexagonal holes of the ratchet wheels and the washer. The rotary shaft in turn rotates the connector to drive the screwdriver bit.

REFERENCES:
patent: 4653359 (1987-03-01), Liao
patent: 5025903 (1991-06-01), Elligson
patent: 5063797 (1991-11-01), Huang
patent: 5142953 (1992-09-01), Lin
patent: 5239875 (1993-08-01), Stasiek et al.

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