Patent ID: 6890277

Claim:
A guide for guiding and maintaining tension in a power transmission medium in a transmission device, the guide comprising a slide rail on which a power transmission medium slides, and a rail supporting member integral with, and extending along, the slide rail, wherein the slide rail is a molded rail having a front surface adapted for sliding contact with a power transmission medium and a back surface, said rail being composed of a first material, the principal component of which is a first polymeric material having wear resistance and heat resistance, the rail supporting member extends along a portion of said back surface of the slide rail and comprises a second material, the principal component of which is a second polymeric material, said second material having higher strength than said first polymeric material, the slide rail and the rail supporting member are sandwich molded, and the rail supporting member has a sandwich molded coating layer composed of said first material, said coating layer covering said second material of the rail-supporting member, whereby the entire outer surface of the guide is composed of said first material.