Device for expansion of a guide rail

摘要

The device has a lubrication system for lubrication of a path portion (2) of a guide rail (1) to facilitate movement in translation of the rail with respect to a ground surface. The path portion of the rail is continuously formed by successive recesses based on thickness of the rail along predefined widths of the recesses, and is alternately arranged at two sides of the rail in planes parallel to each other. Each recess is filled with an elastomer material. An angle iron is positioned on two sides of a base of the rail. The elastomer material is polyurethane resin, foam or silicone.