| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable indication of a reversely directed arrow only by equipping an arrow plate with one indication surface. <P>SOLUTION: A leg supporting part 8 is provided in an arrow plate body part 2 with an indication surface part 4 on which the arrow 10 is indicated, and a shaft inserting hole 15 which comprises a first fitting part, a second fitting part 17 and a rotation permitting part, is provided in each of the leg supporting parts 8. An inverted shaft, to which a leg 3 is attached, is inserted through the shaft inserting hole 15. When the inverted shaft is fitted into each of the first fitting part and second fitting part 17, the leg 3 is made unrotatable with respect to the leg supporting part 8. When the inverted shaft is positioned in the rotation permitting part 18, the leg 3 is made rotatable with respect to the leg supporting part 8. When the direction of the arrow 10 is changed, the inverted shaft is fitted into the first fitting part 16 or the second fitting part 17 after being moved to the rotation permitting part 18 from the first fitting part 16 or the second fitting part 17 and rotated, and the body part 2 is installed on an installation surface in a state wherein the body part 2 is brought into a vertically and horizontally inverted attitude. <P>COPYRIGHT: (C)2007,JPO&INPIT |
