Linear guideway

摘要

A linear guideway includes an end cap and a resilient sheet. The end cap includes a main plate, a surrounding plate, and two side positioning pillars. The surrounding plate and the side positioning pillars are perpendicularly extended from the main plate. The inner edge of the main plate has two protruding segments facing with each other. The side positioning pillars are respectively arranged adjacent to the first protruding segments. The resilient sheet has two first side positioning holes respectively sleeving the two first side positioning pillars, and the resilient sheet is disposed on the main plate. Thus, by the cooperation of the first side positioning pillar and the first side positioning hole, the resilient sheet is firmly received in the end cap and the first side positioning pillars support the inner edge of the resilient sheet.

主权项

1. A linear guideway, comprising:
an elongated track having two roller grooves respectively formed on two opposite sides thereof; a sliding block module slidably sleeving the track; and two end cap modules respectively installed on two opposite ends of the sliding block module and slidably sleeving the track, each end cap module comprising:
an end cap, comprising:
a U-shaped main plate including a substantially U-shaped outer edge, a substantially U-shaped inner edge corresponding to the outer edge, and two end edges connecting the outer edge and the inner edge,wherein the outer edge has an outer bottom edge and two outer side edges respectively connected to two opposite ends of the outer bottom edge,wherein the inner edge has an inner bottom edge and two inner side edges respectively connected to two opposite ends of the inner bottom edge,wherein each inner side edge has a first protruding segment arranged away from the inner bottom edge, the first protruding segments are respectively arranged in the roller grooves, and each first protruding segment and the corresponding roller groove are provided with a gap arranged therebetween;a surrounding plate integrally extended from the outer edge and the end edges of the main plate along an extending direction substantially perpendicular to the main plate; andtwo first side positioning pillars respectively and integrally extended from two portions of the main plate, wherein the two portions of the main plate are respectively arranged in two areas defined between the two first protruding segments respectively and the adjacent outer side edges, the first side positioning pillars are arranged outside the roller grooves; andan oil-absorbing unit having at least one U-shaped resilient sheet, two first side positioning holes formed on the resilient sheet, wherein the resilient sheet has a U-shaped outer sheet edge, a U-shaped inner sheet edge corresponding to the outer sheet edge, and two end sheet edges connect the outer sheet edge and the inner sheet edge, wherein the first side positioning holes of the resilient sheet respectively sleeves the first side positioning pillars of the end cap, the resilient sheet is disposed on the main plate, and the inner sheet edge of the resilient sheet abuts against the roller grooves of the track,
wherein at each end cap module, each inner side edge of the main plate has a second protruding segment, the two second protruding segments are respectively connected to the inner bottom edge, the end cap has two second side protruding pillars, the second side protruding pillars are respectively and integrally extended from two portions of the main plate, wherein the two portions of the main plate are respectively arranged in two areas defined between the two second protruding segments respectively and the adjacent outer side edges, the resilient sheet has two second side positioning holes respectively sleeving the two second side protruding pillars of the end cap,wherein at each end cap module, each first protruding segment has an inclining segment, each inner side edge of the main plate has a connecting segment connecting the inclining segment and the second protruding segment thereof, and the second protruding segment and the inclining segment of each inner side edge are symmetrical to the corresponding connecting segment,wherein at each end cap module, the inner sheet edge of the resilient sheet has two first circular segments, and the two first circular segments of the resilient sheet are respectively overlapping the two inclining segments, wherein each of the first circular segments has a radius of curvature defining a first circular area, and the first circular areas respectively include the first circular segments, the two first side positioning holes are respectively and at least partially arranged in the first circular areas.