| 摘要 |
PURPOSE:To make a pattern belt to be hardly loosened over a long period and easily assemble rotors to support frames by applying tension to the pattern belt wound across a pair of rotors with the exciting force of an exciting mechanism. CONSTITUTION:A pair of support frames 8, 9 separately supporting the bearing members 3, 4 of a pair of rotors 1, 2 are provided relatively movably in the radial direction of the rotors 1, 2. An exciting mechanism S is provided to excite a pair of rotors l, 2 in the separating direction from each other while a pattern belt 5 is wound, a hook section 14 is provided on one support frame 9 to hook the bearing member 4 to be supported by the support frame 9 together with the rotor 2, and the bearing member 4 hooked on the hook section 14 is held in the hooked state by the exciting force of the exciting mechanism S. The pattern belt 5 is hardly loosened over a long period, and the rotors 1, 2 are easily assembled to the support frames 8, 9. |
