Rotary cam drive for impact tool

Details Rotary cam drive for impact tool Rotary cam drive for impact tool

1978-10-12

1981-07-28

Schroeder, Werner H.

Measuring and testing

Brake testing

Roller or belt wheel support

73118, 74 60, B25D 1110

Patent

active

042803594

ABSTRACT:
A hammer drill has a housing provided with a tool chuck in which a tool is to be mounted. A drive is provided which is capable of rotating and/or axially impacting the tool chuck. This drive includes a piston reciprocable in axial direction of the tool chuck, a drum rotating on a shaft extending parallel to the direction of reciprocation of the piston and provided with a circumferentially extending cam track, and a transmitting arrangement which travels in part in engagement with the cam track and which has another part connected with the piston to reciprocate the same.

REFERENCES:
patent: Re23803 (1954-03-01), Ruben
patent: 1901981 (1933-03-01), Ousback
patent: 2024684 (1935-12-01), Erfass
patent: 2232984 (1941-02-01), Wahlmark
patent: 2498679 (1950-02-01), Hall
patent: 2824455 (1958-02-01), Ristow et al.
patent: 2971387 (1961-02-01), Spicacci
patent: 3139038 (1964-06-01), Stewart
patent: 3760641 (1973-09-01), Espasa
patent: 3774699 (1973-11-01), Schmuck
patent: 3828863 (1974-08-01), Bleicher et al.
patent: 3964323 (1976-06-01), Seibert

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