| 摘要 |
A flap opener for a box including suction cups mounted on levers each arranged to pivot around the axis of the score line of the flap which is to be lifted by the respective lever and the respective suction cup. One alternative form of flap opener uses a parallelogram linkage to mount the lever so that the lever swings about the flap score line while at the same time being radially positioned relative to the box. The other alternative form of flap opener includes a lever which is positioned on one side of the box and, after the flap is opened, the box is pushed away from the lever by a hydraulic cylinder. Both alternative forms include means for holding the flap open after it has been opened.
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