Rotary hammer

Details Rotary hammer Rotary hammer

2007-02-13

2007-02-13

Smith, Scott A. (Department: 3721)

Tool driving or impacting

Drive adjustable to completely change kind of drive

Adjustable to impacting device

C173S109000

Reexamination Certificate

active

10846249

ABSTRACT:
An electrically powered rotary hammer includes a first switchable gear arrangement for actuating the hammering mechanism and a second switchable gear arrangement for actuating the rotary drive mechanism. The hammer includes a mode change knob, a linkage support, a first linkage slideably supported in the linkage support between the mode change knob and the first switchable gear arrangement and a second linkage slideably supported in the linkage support between the mode change knob and the second switchable gear arrangement. The mode change knob moves the linkages between three positions, a drilling only mode position in which the second switchable gear arrangement only is in its actuating position, a hammer drilling mode in which both the first and second gear arrangements are in their actuating positions, and a hammering only mode position in which the first switchable gear arrangement only is in its actuating position.

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