192 clutches and power-stop control – Clutches – Automatic
Patent
1978-03-03
1980-01-22
Bonck, Rodney H.
192 clutches and power-stop control
Clutches
Automatic
64 29, 192 41S, F16D 702
Patent
active
041845765
ABSTRACT:
Clutch assembly which couples rotary motion from an output shaft of a high speed power source to a flexible shaft when the output shaft rotates in the desired direction. Power driven flexible shafts which are subjected to torque loads should desirably be rotated in one direction only. Thus, a flexible shaft having its outermost layer of wire coiled in one direction should be rotated in that direction which tightens up the coiled wire in that layer, and not rotated in the other direction. The clutch consists of a 3-component assembly comprising a cylindrical split spring clip, an input bearing or member, and an output bearing or member. The split spring clip interconnects the input member, which usually receives one end of the power driven flexible shaft; and the output member, which is connected to and rotates the spindle of a suitable handpiece tool. The split spring clip is provided with a tongue and a lip which respectively engage a slot, and a detent or sloping face, provided on the input member to cause the split spring clip to rotate therewith in accordance with the high speed output shaft to which the input member is connected. The lip also engages a detent or sloping surface provided on the output member to cause rotation thereof if the input member and split spring clip are rotating in the proper direction, in which case rotary motion will be coupled to the handpiece tool.
REFERENCES:
patent: 2619860 (1952-12-01), Gray
patent: 2824434 (1958-02-01), Stern
patent: 2868001 (1959-01-01), Russell
patent: 2909047 (1959-10-01), Walterscheid-Muller et al.
patent: 3233053 (1966-02-01), Parks
patent: 3347062 (1967-10-01), Schumann et al.
patent: 3429639 (1969-02-01), Peters
patent: 3574878 (1971-04-01), Shames et al.
patent: 3860108 (1975-01-01), Farfaglia
patent: 4112708 (1978-09-01), Fukuda
Ellis William C.
Kulischenko Walter
Bonck Rodney H.
Pennwalt Corporation
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