Patent ID: 6333628
Filing Date: 2001-12-25
Classification: F16C,G01D

Abstract:
A linear motion rolling guide unit with a magnetic distance sensor comprising an elongated guide rail having a top surface and extending in a lengthwise direction, a slide body for movement along said elongated guide rail, said slide body having two opposite ends and two side surfaces extending along said slide body between said two opposite ends, said slide body including two end caps with one of said end caps disposed at each of said opposite ends, a plurality of rolling elements interlaid between said slide block and said guide rail for supporting said slide block on said guide rail as it moves therealong and each of said two end caps including a direction changing passage for recirculating said rolling elements, a magnetic tape adhered to the top surface of said guide rail and under said slide block whereby said slide block is adapted to slide over said magnetic tape, an induction element chamber formed in one of said end caps facing said magnetic tape on said guide rail as said slide body passes over said magnetic tape, and a magnetic induction element disposed within said induction chamber, signal wires and an outlet terminal block provided on one of said end caps and extending outwardly from one of said side surfaces of said slide body for receiving one end of said signal wires, a longitudinal trough extending in a lengthwise direction in one of said side surfaces of said slide body for receiving said signal wires so that said signal wires do not pass over said magnetic tape as said slide body is moved along said guide rail to indicate the distance said slide body is move along said guide rail.