| 摘要 |
PROBLEM TO BE SOLVED: To provide an accumulator which can achieve stabilization of tension control and can reduce a mechanical loss.SOLUTION: An accumulator 20 is equipped with a roller 22 around which a film 150 is wound, and a pair of base parts which respectively support both end parts of the roller 22. A transportation path length of the film 150 is changed by movement of the roller 22 together with the base parts thereby accumulating or releasing the film 150. The roller 22 is so provided as to be oscillative with respect to the base part, and is so configured as to apply a tensile force onto the film 150.SELECTED DRAWING: Figure 1 |
