COLLAPSING AND CUTTING MECHANISM OF SYNTHETIC RESIN BOTTLE, AND VOLUME REDUCING DEVICE AND METHOD

摘要

PROBLEM TO BE SOLVED: To provide a collapsing and cutting mechanism of a synthetic resin bottle and a volume reducing device and a method capable of reliably collapsing and cutting even the synthetic resin bottle having a high restoring force, and reducing volume of such synthetic resin bottle, with a small force according to rotary motion without destroying a neck part.SOLUTION: A collapsing and cutting mechanism includes a first roller having a first roller rugged part and a second roller having a second roller rugged part, the first roller and the second roller being formed of a neck part releasing part and first annular protruded bodies of the first roller and second annular protruded bodies of the second roller being arranged in a zigzag state, and further includes a cutting blade which is composed of a first annular cutter part provided on any one of the first annular protruded bodies and a second annular cutter part which is provided on any one of the second annular protruded bodies corresponding to the first annular cutter part and causes a part thereof to be abutted on the first annular cutter part.SELECTED DRAWING: Figure 1