Feeding apparatus of moved body

A feeding apparatus of a moved body, comprising:

• a base;
• bearings provided at two ends of the base;
• a rotatable long ball screw supported by the bearings and extending in a longitudinal direction of the base;
• a first nut member engaged with the long ball screw;
• a moved body mounted to the first nut member;
• 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 two respective ends of the long ball screw;
• two drive motors mounted on the base, each of the drive motors being 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, each intermediate support being provided with a second nut member which is engaged with the ball screw of the respective drive shaft supported by the intermediate support, the intermediate supports being moved in the longitudinal direction of the long ball screw and each of the drive shafts by rotation of the drive shafts.