Torsional vibration damper having helical torsion springs

Details Torsional vibration damper having helical torsion springs Torsional vibration damper having helical torsion springs

1995-01-27

1995-11-07

Oberleitner, Robert J.

Spring devices

Coil

Circular

267179, F16F 106

Patent

active

054641985

ABSTRACT:
A torsional vibration damper (1) has an input assembly (2,6,7) and a reactor plate (25) with coil springs (40) circumferentially spaced about a center axis of the damper to absorb vibration between the input assembly and reactor plate. Each coil spring (40) includes a plurality of active coils (50) and partial end coils (44). The active coils have a pitch greater than the diameter (d) of the wire (11) and the partial end coils have a pitch equal to the diameter of the wire. A flattened arcuate surface (42) is formed on the partial end coil which spans less than a full coil turn. A distal tip (46) of the end coil has a thickness that is a fraction of the diameter of the wire that is inversely proportional to the amount of arcuate flattened surface of the end coil section. The gap (66) between the tip and the adjacent coil is also inversely proportional to the amount of arcuate spanning surface of the end coil section.

REFERENCES:
patent: 1429690 (1922-09-01), O'Connor
patent: 1523225 (1925-01-01), Lukens
patent: 1878128 (1932-09-01), Griswold
patent: 2026007 (1935-12-01), White
patent: 2260606 (1941-10-01), Clark
patent: 2278324 (1942-03-01), Kollmann
patent: 2351726 (1944-06-01), Wallace
patent: 2695169 (1954-11-01), Keysor
patent: 2998242 (1961-08-01), Schwarzbeck et al.
patent: 3058705 (1962-10-01), Hagg et al.
patent: 3061054 (1962-10-01), Simmonds
patent: 3456684 (1969-07-01), Sochting
patent: 3589226 (1971-05-01), Shadowens
patent: 4017062 (1977-04-01), Szirner
patent: 4148469 (1979-04-01), Geyer
patent: 4304107 (1981-12-01), Fall et al.
patent: 4360352 (1982-11-01), Lamarche
patent: 4377280 (1983-03-01), Wienand et al.
patent: 4402205 (1983-09-01), Yakovlev
patent: 4441696 (1984-04-01), Buzinski
patent: 4555009 (1985-11-01), Habel et al.
patent: 4648423 (1987-03-01), Henken
patent: 4672549 (1987-06-01), Saxton
patent: 4810231 (1989-03-01), Weissenberger et al.

Affiliated with

Also associated with

Rating

Torsional vibration damper having helical torsion springs does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Torsional vibration damper having helical torsion springs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Torsional vibration damper having helical torsion springs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-193179