Rotary hammer driving mechanism

Details Rotary hammer driving mechanism Rotary hammer driving mechanism

1987-03-16

1988-06-14

Olszewski, Robert P.

Tool driving or impacting

Drive controlled by relative axial movement of tool

173 48, 173109, 173116, 173123, B25D 900

Patent

active

047505672

ABSTRACT:
A rotary hammer has a reciprocating piston of a pneumatic impact mechanism driven from a rotatable drive shaft. A coupling element is fixed on, and a drive element slidably mounted on, the drive shaft. These elements have interengageble tapered coupling surfaces and are biased apart by a spring therebetween. The drive element is disposed forwardly of the coupling element and is slidable rearwardly to drivingly engage the coupling surfaces for transmitting drive to the piston. The relative disposition of the drive and coupling elements causes reaction force on the piston, consequential in use upon generation of percussive blows, to urge the drive element into intensified engagement with the coupling element.

REFERENCES:
patent: 1841351 (1932-01-01), Trotter
patent: 3650336 (1972-03-01), Koehler
patent: 4236588 (1980-12-01), Moldan et al.
patent: 4290492 (1981-09-01), Sides et al.
patent: 4325436 (1982-04-01), Richter et al.
patent: 4366869 (1983-01-01), Bereiter
patent: 4442906 (1984-04-01), Simpson
patent: 4446931 (1984-05-01), Bleicher et al.
patent: 4456076 (1984-06-01), Schmid et al.
patent: 4657088 (1987-04-01), Grossmann et al.

Affiliated with

Also associated with

Rating

Rotary hammer driving mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rotary hammer driving mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary hammer driving mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-499984