Tool driving or impacting – Impacting devices – Hammer head moves in arcuate path or rotates
Patent
1991-04-18
1992-08-18
Yost, Frank T.
Tool driving or impacting
Impacting devices
Hammer head moves in arcuate path or rotates
173111, 192 41S, B25D 1600
Patent
active
051390930
ABSTRACT:
A clutch assembly transmits rotary motion in a percussive apparatus to a drill steel. The clutch assembly includes a first hub having a first cylindrical surface formed thereon. A second hub which is substantially rotationally coupled to the drill steel, has a second cylindrical surface formed thereon. The second cylindrical surface is coaxial with the first cylindrical surface. A wrap spring engages a portion of both the first cylindrical surface and the second cylindrical surface, wherein relative rotary motion between the first hub and the second hub is permitted in a first direction and restricted in a second direction. The wrap spring clutch transmits motion supplied from a rifle bar assembly as well as a plunger bar arrangement.
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Kimberlin Robert R.
Lyon Leland H.
Foster Glenn B.
Ingersoll-Rand Company
Selko John J.
Smith Scott A.
Yost Frank T.
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