Spring devices – Vehicle – Leaf
Patent
1998-07-06
2000-05-02
Schwartz, Christopher P.
Spring devices
Vehicle
Leaf
267148, 267 30, 267 44, 267 47, B60G 1102
Patent
active
060562765
ABSTRACT:
Leaf spring, in particular for a suspension of a vehicle, of the multiple-leaf type, and preferably of the double-leaf type: a first, upper leaf is provided at respective ends with corresponding eyelets for attachment to a vehicle, and is made of metal material, for example of steel, whereas a second leaf which is connected to a lower surface of the first leaf, is made of composite material, for example of plastic reinforced with fiber glass. The attachment eyelets, which are produced by plastic deformation of the ends of the first leaf, are disposed entirely on one side of a longitudinal axis of symmetry of the first leaf, on the side opposite the second leaf; the second leaf extends longitudinally with its own respective end edges at least as far as the geometric centers of the eyelets. Between the leaves, in the vicinity of the eyelets and partially below the latter, there are interposed two friction buffers with a predetermined thickness, which are coupled to the lower leaf by means of a coupling tooth. Relative sliding of the leaves is prevented by a central bolt, whereas their relative rotation is prevented by a bracket substantially in the shape of a "U", which is disposed in the vicinity of one of the eyelets.
REFERENCES:
patent: 4489922 (1984-12-01), Fesko
patent: 4519591 (1985-05-01), Bush et al.
patent: 4887802 (1989-12-01), Wilcox
Patent abstracts of Japan, vol. 004, No. 128, publication No. 55086934, published Jan. 7, 1980.
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Kramer Devon
Rejna S.p.A.
Schwartz Christopher P.
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