Driving pulley of traction device |
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| 申请号 | JP10995490 | 申请日 | 1990-04-25 | 公开(公告)号 | JPH0366969A | 公开(公告)日 | 1991-03-22 |
| 申请人 | Herbert Kothmayer; | 发明人 | HERUBERUTO KOOTOMAIYAA; | ||||
| 摘要 | PURPOSE: To lighten a driving pulley without spoiling stability and operational performance by providing at least two spork pairs on the driving pulley and increasing an interval at a connecting point on a hub larger than an interval at a connecting point on a rim of the spork. CONSTITUTION: A driving pulley has a plural number of spork pairs, and arrangement of connecting points of the sporks 3, 3' making pairs to a hub 1 and a rim 2 is done so that an interval at the hub 1 is larger than an interval at the rim 2. Consequently, the sporks of at least one of each of the pairs of the sporks 3, 3' are angularly displaced against a virtual spork extending the radial direction from a corresponding connecting point at the rim 2 on a pulley surface. Accordingly, a driving moment is divided into two components, one of them works in the circumferential direction of the rim 2 and gives driving force or braking force, and the other component in the radial direction is absorbed through the sporks 3' of a corresponding object and it is transmitted to the hub 1 once again. Consequently, it is possible to lighten the driving pulley without spoiling stability and operating performance. COPYRIGHT: (C)1991,JPO |
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