| 摘要 |
The movable machine comprises a chassis (12) whose bottom (4) runs on wheels (5) on a guide rail. The chassis supports a crown wheel (3) on which two cables (1,2) wind and unwind. The electrical supply cable (1), originating from the public supply, is guided by a rail (8) and fixed to the crown wheel by a flange (14). It is then wound around a small diameter pulley after which it passes through a pulley block (11) held by a counterweight (10). The supply cable is fastened to the crown wheel by a piece (13), then wound around the large diameter in order to then rejoin the machine, passing through the return pulley (14). The steel cable (2), wound on a pulley block (7), is held by the weight (6) to ensure rotation with the crown wheel. The electrical supply cable is automatically rewound on the large and small diameter pulleys by the steel cable.
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