Patent ID: 9255608
Filing Date: 2016-02-09
CPC Classification: F16C

Claim Text:
1. A linear guide apparatus, comprising: a guide rail; and a slider straddling over the guide rail, wherein: the slider slidingly moves in a linearly moving direction over the guide rail via rolling elements in left and right sleeve parts of the slider, a side seal and an underseal are provided to be different parts, as seal members of a sliding contact part of the guide rail and the slider, the side seal including a side lip extending along an outer circumference of the guide rail to seal an end face in the linearly moving direction of the slider, the underseal including an under lip extending in the linearly moving direction of the slider to seal a part where a gap is generated between a lower part of a sleeve part of the slider and the guide rail, the underseal includes a gap seal protrusion part formed in at least an end part in the linearly moving direction or a vicinity of the end part to protrude toward the side seal side to seal a gap between the underseal and the side seal, and the gap seal protrusion part is integrally formed adjacently to the underlip of the underseal, and is in contact with a terminal end face of the side lip of the side seal without a gap, wherein the side seal includes a soft material part and a hard material part, and the end part in the linearly moving direction or the vicinity of the end part where the gap seal protrusion part is formed, in the underseal, is interposed between the soft material part and the hard material part of the side seal.