| 摘要 |
PURPOSE: Driving apparatus and an assembly method thereof are provided to maintain consistent wire tension in a bolt fastening process by using a tension control device equipped with a main driving gear. CONSTITUTION: A rotary shaft(10) is lengthwise extended, receives driving force and rotates. A bolt hole(12) is made by lengthwise puncturing at the inside of the rotary shaft. A through-hole, where the rotary shaft is inserted, is made by puncturing at the middle part of a ring component(20), and the ring component is combined with the rotary shaft in a way that the rotary shaft is inserted into the through-hole. A wire(30) is wound around the outer circumferential surface of the ring component, and delivers driving force. An extension bolt(14) is inserted into the bolt hole, and has a bigger pipe diameter than the pipe diameter of the bolt hole. The rotary shaft is expanded in the direction of its pipe diameter by the fastening of the extension bolt, and thereby the rotary shaft and the ring component are bonded together.
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