| 摘要 |
A conveyor-belt apparatus, including: a belt; a supporting member that rotatably supports the belt; a moving unit that displaces at least one end of the supporting member in a longitudinal direction to move the belt in the longitudinal direction; a tension changing unit that changes a tension of the belt in accordance with a moving state of the belt in the longitudinal direction when the moving unit displaces the end of the supporting member.
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