| 主权项 |
1. A linear motion guide unit comprising:
an elongated guide rail having two sides, each side having a first raceway groove extending in a longitudinal direction of the elongated guide rail, and a slider having second raceway grooves lying in opposition to the first raceway grooves of the elongated guide rail, the slider comprising
a carriage which fits or conforms over the elongated guide rail to move in the longitudinal direction of the elongated guide rail in a sliding manner,a plurality of rolling elements allowed to roll through load-carrying races defined between the first raceway grooves and the second raceway grooves,end caps secured to forward and aft ends of the carriage, one to each end,end seals attached on outward end surfaces of the end caps, one to each end cap, anda pair of inside seals installed between a top surface of the guide rail and both a lower surface of the carriage and lower surfaces of the end caps lying in opposition to the top surface of the guide rail, wherein the inside seals are installed along the load-carrying races, one to each load-carrying race, wherein the inside seals each have a flat major portion of an elastic member extending lengthwise of the inside seal in parallel with one of the load-carrying races and making contact with a lower surface of the carriage and a lower surface of each of the end caps, wherein a lip of the elastic member extends sidewise beyond a first longitudinal side of the flat major portion across an overall length of the major portion to make a sliding contact with a top surface of the guide rail throughout an overall length of the lip, wherein flat hooked portions extend upright at lengthwise ends of the major portion at right angles to the major portion so as to fit into slots on outward end surfaces of the end caps to keep the inside seals in place relative to the end caps, and wherein both the hooked portions and the flat major portion are made of the elastic member and a metallic core adhered to the elastic member. |
