Patent ID: 9574605
Date: 2017-02-21
CPC Classifications: F16C

Claim:
1. A motion guide device comprising: a track member on which a rolling element rolling surface is formed; a moving member on which a loaded rolling element rolling surface opposing the rolling element rolling surface is formed and which has a rolling element return path extending substantially parallel to the loaded rolling element rolling surface; a pair of cover members that are provided at both front and rear ends in the moving direction of the moving member and have a redirection path connecting the loaded rolling element rolling surface and the rolling element return path; a plurality of rolling elements arranged rollably in a rolling element circulation path defined by the loaded rolling element rolling surface, the rolling element return path, and the redirection path; and a rolling element guide member provided along an entire length of the loaded rolling element rolling surface so as to guide an unloaded side of the plurality of rolling elements that perform a rolling movement under load between the rolling element rolling surface and the loaded rolling element rolling surface, wherein the rolling element guide member comprises a beam member to form a main structural material and an outer member including a rolling element guide surface for guiding the unloaded side of the rolling elements, wherein the beam member and the outer member are insert-molded, wherein the outer member is insert-molded on an outer peripheral side of the beam member in a range capable of forming at least the rolling element guide surface when the rolling element guide member is viewed in cross-section, wherein an outer periphery of the beam member is configured to fit inside an outer periphery of the outer member when the rolling element guide member is viewed in cross-section, and wherein the beam member is an elongated cylindrical rod.