| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure of controlling the contact force of a current collector, which can control the contact force working between the slider of the current collector and a trolley wire in spite of its simpleness. SOLUTION: As shown in figure (A), when contact force C increases and a collector shoe 8 goes up to the slider 7, a pressurizer 18 goes up in a body with the collector shoe 8, and a passage 16 is compressed between the pressurizer 18 and a pressurizer 17, and the sectional area of the passage 16 decreases. As a result, the lift L working on the collector shoe 8 drops, and the contact force C drops. On the other hand, as shown in figure (B), when the contact force C decreases and the collector shoe 8 lowers to the slider 7, the pressurizer 18 lowers in a body with the collector shoe 8, and the interval between the pressurizer 18 and the pressurizer 17 widens, and the sectional area of the passage 16 increases. As a result, the lift L working on the collector shoe 8 increases, and the contact force C increases, and the contact force C is kept roughly constant. COPYRIGHT: (C)2006,JPO&NCIPI
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