| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hoisting machine for elevator, which can be easily assembled by reducing the number of components, can be made compact and light in weight. <P>SOLUTION: Bearings 4, 5 are supported on bearing stands 2, 3 respectively and both end parts of a rotary shaft 6 are freely rotatably supported via the bearings 4, 5. The rotating shaft 6 consists of carbon steel, for example. A main cable winding part 6a around which a main cable 7 is wound is integrally formed on the middle part of the rotating shaft 6. A plurality of rope grooves 6b into which the main cable 7 is inserted are disposed on the main cable winding part 6a. The main cable winding part 6a is forged when manufacturing the rotary shaft 6. The rope grooves 6b can be formed by machining by a lathe or can be formed by forging. <P>COPYRIGHT: (C)2012,JPO&INPIT |
