| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce a space to be required for a device while coping with various shaped load carrying passage by making both carriers travel while changing relative angle thereof. SOLUTION: When a carrying vehicle 4 achieves a first corner C1, a first carrier 4a stops with an abutment of a guide roller 9 on a first rail 5a outside at a position 4-2. A driving roller 12 continuously travels along the outside of a second rail 6, and a second carrier 4b is turned counterclockwise around a shaft 7. When the second carrier 4b is turned at 90 degree, the first and the second carriers 4a, 4b start to travel in the downward direction. When the carrying vehicle 4 achieves a second corner C2, the first carrier 4a is stopped again, and the second carrier 4b continues traveling, and it is turned more counterclockwise. When the second carrier 4b is turned at 90 degree again, the carrying vehicle 4 starts the traveling in the right direction of a figure, and achieves a position 4-4, and continues traveling while being reversed at 180 degree against the former direction.</p> |
