| 摘要 |
PROBLEM TO BE SOLVED: To simplify the structure of a product stacking device by using first and second rotary members of different outside diameter, and keeping the first and second spans between the rotary members in a parallel manner by a holding sprocket to keep the total length of the first and second spans to be constant even when the first and second rotary members slide. SOLUTION: A device 1 is provided with a first rotary member 3 and a second rotary member 4 which is arranged with the specified interval and smaller in diameter than the first rotary member 3 on a base 2, and first and second spans 5a, 5b between the rotary members 3, 4 are kept in a parallel manner by holding sprockets 12, 13. Even when the, first and second rotary members 3, 4 slide, the total length of the first and second spans 5a, 5b can be kept constant, a tensioner can be dispensed with, and the structure of the whole device can be simplified. Since a chain 5 is directly driven by first and second supporters 7, 8, the slide unit of the first and second rotary members 2, 3 can be simplified. |
