| 摘要 |
For a robot arm 1 sliding along D and equipped with an active head 8 at the end, the device for transmitting movement between a fixed motor 19 and a pulley 24 coupled to the head 8 consists of a belt 25 interacting with a fixed driving pulley 18, the pulley 24 and return pulleys 23, 14, 15, two of which, 14, 15, are carried by a carriage 12 sliding so as to compensate for the variation in distance between the beams 18 and 24. A belt 30, symmetrical with 25, balances the forces on the carriage. <IMAGE>
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