Guide rail of compound type and a method for manufacturing such a rail

Guide rail of compound type for guiding interaction with a wheel of a unit travelling along the rail, the guide rail comprising an outer rail made of sheet metal exhibiting the shape of a longitudinal open channel with defined inside and outside, a base rail exhibiting a foot for mounting the rail to a surface, a web extending from the foot supporting a main part, which, in comparison to the web, is thicker and serves as a receptacle section for receiving and supporting the outer rail, whereby the outer rail has an outer profile that has been chosen to provide a guiding interaction with the wheel, the inside of the outer rail and the receptacle section of the base rail exhibit corresponding sections or sections that have been chosen relative to each other so that the outer rail fits onto the receptacle section, wherein the outer rail has a yield point exceeding that of the base rail and wherein both the outer rail and the base rail are fixed adhesively to each other by a glue joint,

• whereby the outer rail and base rail respectively are joined to each other with a combination of glue and mechanical snap fastening and a certain degree of application to the base rail through the effect of a snap fastener portion formed in the outer rail,
• whereby the outer rail seen in cross section is essentially C-shaped exhibiting a bottom section and two adjoining side edge sections, the free end side edges of which are opposing to form a snap fastener portion and intended when the outer rail is fitted to snap in place on a transitional section that viewed from the main section tapers off towards the web, and
• whereby the outer rail on its concave inside has longitudinal material contractions serving as guide notches.