LEAF SPRING CONSISTING OF A FIBRE-COMPOSITE MATERIAL

The invention relates to a leaf spring ( 1 ) consisting of a fibre-composite material and having a central longitudinal section ( 2 ) and two adjoining axial end sections for a wheel suspension in a vehicle, the end sections of said leaf spring tapering with respect to the leaf spring width. The lea...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: AULICH, CLEMENS, FOERSTER, RAINER, KEMPE, HEIKO
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:The invention relates to a leaf spring ( 1 ) consisting of a fibre-composite material and having a central longitudinal section ( 2 ) and two adjoining axial end sections for a wheel suspension in a vehicle, the end sections of said leaf spring tapering with respect to the leaf spring width. The leaf spring ( 1 ) is composed of resin-impregnated fibre layers and axially orientated uncut first fibres ( 6 ) of the fibre-composite material extend the full length of the leaf spring ( 1 ) to the two axial ends ( 5 ) of said spring. The axial ends ( 5 ) of the unfinished untreated leaf spring ( 1' ), when viewed from above, have an essentially V-shaped geometry or an essentially V-shaped notch and thus form two respective limbs ( 8, 9 ) lying transversally to the longitudinal extension of the axis of the untreated leaf spring ( 11 ), said limbs ( 8, 9 ) abutting one another in the finished leaf spring ( 1 ). To further develop a leaf spring ( 1 ) of this type, according to the invention, the fibre fraction at least in the region ( 11 ) of the axial ends ( 5 ) of the untreated leaf spring ( 1' ) is smaller than that contained in the neighbouring axial regions ( 2, 3, 4 ).