SPACER CAR FOR POWER LINE CAPABLE OF PREVENTING BEING MOVED BACKWARD

摘要

The present invention relates to a spacer car for a power line which is allowed only to move forward of the power line and is prevented from being pushed backward of the power line. A spacer car for a power line according to a preferred embodiment of the present invention includes a boarding part on which an operator boards; a column frame extending upwards from the boarding part; a main roller which can be move along a lengthwise direction of the power line while being in contact with a surface of the power line and be connected to an upper end of the column frame to be able to rotate; and a unidirectional brake allowing the boarding part and the column frame only to move toward a front side of the power line, wherein the unidirectional brake has an upper roller in contact with an upper portion of the power line, a lower roller in contact with a lower portion of the power line, and a wedge member resiliently biased forwards toward a gap between the upper roller and the power line.