Coil spring, in particular for a torsion damper

Details Coil spring, in particular for a torsion damper Coil spring, in particular for a torsion damper

1992-06-18

1993-11-09

Butler, Douglas C.

Spring devices

Coil

Irregular

267166, F16F 106

Patent

active

052595994

ABSTRACT:
A coil spring for a torsion damper in a motor vehicle has a non-circular cross section. The cross section of the wire of the coil spring is generally ovoid in shape, with its narrow end defined by a point directed outwardly of the spring, and two lateral convexities, the profile of the cross section consisting of two symmetrical multi-arc curves in the form of splines (in the mathematical sense) joined to each other.

REFERENCES:
patent: 3974903 (1976-08-01), de Gennes
patent: 4735403 (1988-04-01), Matsumoto et al.
patent: 4810231 (1989-03-01), Weissenberger et al.
patent: 4923183 (1990-05-01), Saka
patent: 4957278 (1990-09-01), Komura et al.
"Ventilfedern mit Drahtquerschnitten, die von der Kreisform abweichen", Niepage et al., Draht, vol. 32, No. 7/8, Aug. 1991, pp. 495-503.

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