| 摘要 |
PROBLEM TO BE SOLVED: To provide a spiral conveyor capable of upwardly or downwardly moving articles and accumulating the articles on the midway of a spiral conveyor. SOLUTION: In the spiral conveyor 10, for supports 11 stand and an inner frame body 12 is formed in spiral around these four supports 11. An outer frame body 13 is formed in spiral on an outer side of the inner frame body 12 and a plurality of rollers 15 (driving roller 15A and interlocking roller 15B) are arranged in spiral between these inner frame body 12 and outer frame body 13. Thereby, a spiral conveying passage is formed by these rollers 15. In addition, in the spiral conveyor 10, the spiral conveying passage is sectioned to a plurality of zones each individual roller driving source (driving roller 15A) is provided in every zone.
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