Rotary shafts – gudgeons – housings – and flexible couplings for ro – Torque transmitted via flexible element – Coil spring
Patent
1986-12-16
1988-12-06
Stodola, Daniel P.
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Torque transmitted via flexible element
Coil spring
1921062, 464 64, F16D 314
Patent
active
047893753
ABSTRACT:
A spring damper drive for a clutch driven disc assembly. The assembly includes a pair of spaced outer covers connected to a generally cylindrical central hub. An annular support plate is disposed about the hub between the outer covers and is rotatable relative thereto throughout a limited distance. The outer covers and the support plate each have respective pluralities of openings formed therethrough. The openings are adapted to be aligned with one another so as to receive and retain respective pairs of dampening coil springs therein. Each spring opening is shaped generally in the form of a truncated sector, having a linear inner wall oriented perpendicularly to a bisecting radius of the outer cover, a pair of end walls extending perpendicularly outwardly from each end of the linear inner wall, and an arcuate outer wall connecting the two end walls. The peripheries of the spring openings formed in the two outer covers are defined by flanges which extend thereabout in opposed fashion. The radially outermost corners of each of those flanges are formed having shoulders which extend inwardly from the arcuate outer wall. The shoulders are provided to re-position the ends of the coil springs according to the amount of compression thereof caused by rotation of the support plate relative to the outer covers. As a result, the springs are properly positioned throughout relatively large amplitudes of angular displacement of the support plate relative to the outer covers, and premature wear of the springs is avoided.
REFERENCES:
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patent: 2286502 (1942-06-01), Newton
patent: 2437537 (1948-03-01), Kelleher
patent: 3060705 (1962-10-01), Stenger
patent: 3095716 (1963-07-01), Smirl
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patent: 4537296 (1985-08-01), Lech, Jr. et al.
patent: 4555009 (1985-11-01), Habel et al.
Dana Corporation
Stodola Daniel P.
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