| 摘要 |
PURPOSE:To raise the operability of concrete coating operation by a method in which a trowel to receive and supply concrete is attached to the tip of a link mechanism extensionally set movably from the support portion in all directions and concrete is coated by a remote control. CONSTITUTION:A link mechanism B movable from the support portion A in all directions is extensionally provided, and a trowel C capable of receiving and supplying concrete is attached to the tip of the mechanism B in an adjustable manner. A sensor S for control is set on the body of machine and a television camera 1 is set on the mechanism B portion. While watching a television 3 in an operator's cab 2 on the support A side, the wall of tunnel is coated with concrete on a remote control basis. |
