Guide for transmission device

摘要

In a guide for a timing chain, a slide rail and a rail support are formed by sandwich molding. The rail support includes a core formed of a glass fiber reinforced polyamide 66 resin and a skin layer formed of a polyamide 66 resin. The slide rail is composed entirely of a polyamide 66 resin and is continuous with the skin layer of the rail support. A narrow connecting region formed of polyamide 66 resin is disposed between the rail support and the slide rail. The narrow connecting region prevents the glass fiber-reinforce resin from entering the slide rail in the sandwich molding process.