| 摘要 |
PROBLEM TO BE SOLVED: To enable to provide enough power feeding nature and grounding nature, while responding to high electric current through reduction of electrical contact resistivity and sliding friction between electrodes. SOLUTION: A power feeding structure includes a roller-shaped multipoint contact electrode 1 formed by a number of elastic contact pieces 7 arranged in parallel around a perimeter of the same, a long-shaped fixed electrode 2 which makes rotation contact with an external surface of the multipoint contact electrode, a movable electrode 3 which makes contact with the multipoint contact electrode in an opposite side of the fixed electrode. The movable electrode 3 is fixed to a cover 5, which supports the multipoint contact electrode 1 with free rotation. A pulley 12, holding the multipoint contact electrode 1, is connected to a base 10 on the fixed electrode side with free rotation. The cover 5 is biased towards the fixed electrode side by elastic members 13. A pinion 16 is arranged in one piece with the pulley 12, and a rack 17 is arranged on the base 10. A plurality of the multipoint contact electrode 1, the fixed electrode 2 and the movable electrodes 3, 24 are arranged in parallel. COPYRIGHT: (C)2010,JPO&INPIT
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