Rotary hammer with variable hammering stroke

Details Rotary hammer with variable hammering stroke Rotary hammer with variable hammering stroke

1989-08-22

1991-08-06

Eley, Timothy V.

Tool driving or impacting

Drive adjustable to completely change kind of drive

Adjustable to impacting device

173104, 173109, 173123, 192 53C, E02D 702

Patent

active

050369253

ABSTRACT:
A rotary hammer has a pneumatic hammering mechanism driven by a wobble plate drive arrangement. A rotatably driven intermediate shaft transmits torque for rotating a tool holder. A carrier sleeve is rotatably mounted on the intermediate shaft and is elastically coupled with the intermediate shaft for limited rotational displacement relative thereto. The tool holder is rotatably driven via gearing by the carrier sleeve. On a suitable portion of the carrier sleeve a hub body of the wobble plate drive is mounted so as to be rotatable relative to the carrier sleeve but non-rotatable in relation to the intermediate shaft. In use, when a hammer bit in the tool holder is placed under load, the carrier sleeve and the intermediate shaft are caused to rotationally displace relative to each other as a result of the elastic coupling, wherein the inclination of the hub body of the wobble plate drive alters and with this the hammering stroke is altered.

REFERENCES:
patent: 4280359 (1981-07-01), Schmid et al.
patent: 4325436 (1982-04-01), Richter et al.
patent: 4487272 (1984-12-01), Bleicher et al.
patent: 4895212 (1990-01-01), Wache

Affiliated with

Also associated with

Rating

Rotary hammer with variable hammering stroke 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 with variable hammering stroke, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary hammer with variable hammering stroke will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1980571