| 摘要 |
PROBLEM TO BE SOLVED: To provide a maker board indicating to vehicle operators and passers-by by an arrow and allowing a same board to be used according to a variation in advancing directions (right, left, and right and left). SOLUTION: This maker board comprises an arrow indication board 10 having an arrow (a) with arrow tip parts (b) at both ends thereof formed or indicated in lateral direction and having guide 12 parallel with each other at positions where the arrow (a) is vertically held through the overall length, and a shielding plate 11 capable of shielding the arrow tip parts (b). The shielding plate 11 is installed so as to be reciproceble along the guide rails 12 in the state of being controlled so as to be stopped when one arrow tip part (b) is shielded and the other tip part (b) is shielded. |
