| 摘要 |
<p>PROBLEM TO BE SOLVED: To wire a cable while preventing the damage of the cable. SOLUTION: When a vibrator operates, a vibration table 2 vibrates relative to a fixed part 3. A corrugated cylinder 20 is provided between the vibration table 2 and the fixed part 3. A cable 23 is laid along the unevenness of the outer circumference of the corrugated cylinder 20. The pressurized air is supplied into the corrugated cylinder with a predetermined pressure which is sufficiently high to avoid the dipping of the corrugated cylinder and not to break the cylinder. As the corrugated cylinder 20 is expanded and contracted, in accordance with the vibration of the table 2 and the cable is also expanded and contracted accordingly, an excessive load is not applied to the cable 23 and the cable 23 is protected from damages.</p> |
