| 摘要 |
<p>PURPOSE:To relieve a tension exerted on an electric cable and to improve reliability by reduction of an installation cost and provision of an increased life, by a method wherein an electric cable to interconnect connection terminals on the ground side and the vehicle side is stretched around free pulleys. CONSTITUTION:Connection terminals 12 and 12' on the vehicle are mounted to two vehicles 3 and 3' which are reciprocated in a reverse direction to each other in a state to be coupled to a steel cable 7 wound around a drive car 5. Meanwhile, two connection terminals 9 and 9' on the ground are situated between the drive vehicle 5 and each of the reciprocation turning points of the vehicles 3 and 3'. Two free pulleys 10 and 10' are movably disposed to the vehicles 3 and 3', respectively, and two electric cables 8 and 8' having flexibility are stretched around the free pulleys 10 and 10', and are connected to the connection terminals 9, 9' and 12, 12', respectively. The two free pulleys 10 and 10' are intercoupled through a flat pulley 13, mounted on the ground side, by means of a steel cable 14, and the electric cables 8 and 8' are held in a stretched state.</p> |
