Patent ID: 7326138

Claim:
A guide for an endless flexible transmission medium, comprising an elongated slide rail adapted for sliding contact with a transmission medium traveling in the direction of elongation of the slide rail, and a rail support which extends along the slide rail in the direction of elongation and supports the slide rail, said slide rail and rail support being sandwich molded, wherein said rail support includes a core composed of a glass fiber-containing high-strength polymer and a skin layer composed of a wear-resistant polymer; wherein said slide rail is composed of the same wear-resistant polymer of which said skin layer is composed, said slide rail and the skin layer on the rail support being unitary; wherein the slide rail is separated from said glass fiber-containing high-strength polymer by a space; and wherein a narrow connecting region, narrower than the slide rail and also narrower than the rail support, and composed of the same wear resistant polymer as that of which the skin layer and slide rail are composed, is disposed within said space, and located between, and integrally connected to, the rail support and the slide rail.