Apparatus for driving a drilling or percussion tool

Details Apparatus for driving a drilling or percussion tool Apparatus for driving a drilling or percussion tool

1991-06-11

1992-05-19

Watts, Douglas D.

Tool driving or impacting

Work cleansing

Cleansing fluid pump operated by drive

408 58, 408 67, E21C 702, B25D 1714

Patent

active

051139510

ABSTRACT:
This invention relates to a device for driving a drilling or percussion tool having a spindle that rotates with respect to a housing. One end of the spindle is adapted to fasten to a tool piece and the other end is connected to an oscillating percussion body movable in the housing by means of a guideway. A drive shaft rotates the tool spindle into rotation or actuates the percussion body via a transmission that is provided with means for converting the rotary motion of the drive shaft into an oscillatory motion of a drive member. The drive member is connected to the percussion body through an elastic member having a non-linear sping characteristic.

REFERENCES:
patent: 1955182 (1934-04-01), Hall
patent: 2246916 (1941-06-01), Fischer
patent: 3850254 (1974-11-01), Hirdes
patent: 4036308 (1977-07-01), Dellenberg
patent: 4051880 (1977-10-01), Hestily
patent: 4921375 (1990-05-01), Famulari

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