| 摘要 |
<p>PURPOSE:To obtain a current collector having excellent current collecting performance and long service life, by placing a tubular torsional rubber spring for applying rotary force onto a rotary arm between boss section at the base end section of the rotary arm and a fixed shaft. CONSTITUTION:A rotary arm 3 is fixed rotatably to a shaft 2 secured to a fixing frame 1, and a slide board 5 is secured through a vibration isolating rubber 4 to the tip of the arm 3. A tubular torsional rubber spring 10 is placed between boss section 31 of the rotary arm 3 and the shaft 2. Recovery force of the torsional rubber spring 10 causes pressure contact of the slip board with a third rail, thus absorbing sliding impact being transmitted from slide contact section of the slide board and body side through resiliency of the rubber spring.</p> |
