Rubber spring element
AssigneeWOCO Franz-Josef Wolf & Co.
InventorsFranz J. Wolf, Hubert Pletsch
Life of this patent
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Abstract
In order to obtain a particularly soft spring characteristic the rubber spring element consisting of relatively hard material having good mechanical strength is traversed by cavities and hollow channels, which intersect said cavities, in such a manner that the area of the inside cross-section of the hollow channels amounts to at least 25% of the area of the largest inside cross-section of the nearest cavity traversed by this hollow channel, while the hollow channels may directly intersect in the rubber matrix.
Claims11
A rubber spring element consisting of a rubber matrix traversed by hollow channels and cavities in such a manner that each of the cavities formed in the rubber matrix is traversed by at least one of the hollow channels, wherein the area of the inside cross-section of the hollow channels, given the same alignment of the planes of section at right angles to the longitudinal direction of the hollow channels, amounts in each case to at least 25% of the area of the largest inside cross-section of the nearest cavity traversed by this hollow channel, and wherein the hollow channels in the rubber matrix intersect communicatingly either directly or in the cavities.
Dependencies are inferred from the claim text.