Hammer drill with a lockable tool holder

Details Hammer drill with a lockable tool holder Hammer drill with a lockable tool holder

1978-06-08

1980-12-02

Reynolds, Wm. Carter

Tool driving or impacting

Drive adjustable to completely change kind of drive

Adjustable to impacting device

74 22A, 173116, B23B 4502, B23B 4504, F16H 2512

Patent

active

042365880

ABSTRACT:
In a hammer drill in which both rotationally and axially directed driving force components can be transmitted to a tool held in a tool holder, a coupling member is displaceable between three axially spaced positions. In the first position the coupling member transmits rotational driving force to the tool holder, in the second position the tool holder is freely rotatable and in the third position the coupling member locks the tool holder against rotation so that only axially directed driving force can be transmitted to the tool.

REFERENCES:
patent: 2270929 (1942-01-01), Bugg
patent: 2531849 (1950-11-01), Karleen
patent: 2601788 (1952-07-01), Parker
patent: 2794621 (1957-06-01), Beeson
patent: 3000225 (1961-09-01), Taylor
patent: 3119274 (1964-01-01), Short
patent: 3430707 (1969-03-01), Rees
patent: 3521497 (1970-07-01), Schmuck
patent: 3847229 (1974-11-01), Wanner et al.
patent: 3866692 (1975-02-01), Stelljes

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