Hammer drill or chipping hammer device

Details Hammer drill or chipping hammer device Hammer drill or chipping hammer device

B - Operations, Transporting

23

B

77/17

B23B 45/00 (2006.01) B25D 11/00 (2006.01) B25D 11/06 (2006.01)

Patent

CA 1129682

ABSTRACT OF THE DISCLOSURE In a device which can be used as a hammer drill or a chipping hammer, a percussion mechanism is located within a working cylinder in the housing of the device. A tool can be placed in one end of the working cylinder and the tool can be rotated without any percussive action or it can be given a combined rotative and percussive action. The percussive action is transmitted over a driving mechanism to an actuating piston which reciprocates a percussion piston through an intermediate air cushion. The drive mechanism includes a driving shaft with a disk pivotally connected to the shaft and in engagement with the actuating piston for selectively effecting the percussive action on the tool.

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