Patent ID: 6490956
Filing Date: 2002-12-10
Classification: B21D,B23Q,F16H,Y10T

Abstract:
A feeding apparatus of a moved body, comprising:a rotatable long ball screw extending in a first longitudinal direction; a pair of drive shafts, each comprising inner and outer end portions and arranged in parallel to the long ball screw, the drive shafts each provided with a ball screw; driving and transmitting members connecting outer end portions of each of the drive shafts and respective ends of the long ball screw; two drive motors connected to the inner end portions of each of the drive shafts; and intermediate supports supporting the long ball screw and each of the drive shafts respectively, the intermediate supports being moved in the longitudinal direction of the drive shafts and each of the drive shafts by rotation of the long ball screw.