Patent ID: 11933381
Assignee: AUTOMOTIVE INSIGHT, LLC
Field: Other special machines (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 13:
14. A composite leaf spring, comprising:
a first bushing tube near a first longitudinal end of the leaf spring;
a second bushing tube near a second longitudinal end of the leaf spring;
a base material comprising a ribbon having a width that defines a width of the leaf spring, the base material having first portions near the longitudinal ends of the leaf spring and a second portion between the first portions, the first portions having a first thickness, the second portion having a second, larger thickness, the base material being wrapped at least partially around the first and second bushing tubes; and
a plurality of layers of tension material wrapped around the base material, the tension material comprising a ribbon having a width corresponding to the width of the base material, the tension material defining an outermost layer of the leaf spring, the tension material having warp strands in a longitudinal direction between the first and second longitudinal ends of the leaf spring, the warp strands establishing a majority of a composition of the tension material,
wherein the base material comprises warp strands along a length of the base material ribbon and at least one of
(i) particles in the second portion that contribute to the second thickness or
(ii) a first volume of weft strands in the first portions and a second, larger volume of weft strands in the second portion.