| 摘要 |
<p>Track relay devices (2A, 2B, 2C) installed on the joint (110) between a pair of rails (112) disposed in parallel at a given distance from one another and another pair of rails (112) disposed as an extension of the aforementioned pair of rails (112) in parallel at the same given distance from one another, the track relay devices (2A, 2B, 2C) being provided with universal joints (52), a pair of expansion/contraction mechanisms (11, 71), and linking arms (41), wherein: each expansion/contraction mechanism (11, 71) is provided with multiple joint rails (12, 12a, 12b, 12c) arranged on the joint (110) along the lengthwise direction of the track, and a frame (31) for supporting the joint rails (12, 12a, 12b, 12c) in a slidable manner along the lengthwise direction of the track; the linking arms (41) are attached to the frames (31) in a slidable manner along the traveling surface of the joint rails and link the frames (31) of the expansion/contraction mechanisms (11, 71); and the universal joints (52) are disposed on both ends of the expansion/contraction mechanisms (11, 71) and link each rail (112a, 112c) with the expansion/contraction mechanisms (11, 71).</p> |
