To level small-piece articles which are unevenly present on one side in a container by a simple method and device.SOLUTION: A method of leveling small-piece articles encapsulated in a container according to the present invention comprises: applying an impact to the container in which the small-piece articles are encapsulated by causing the container in which the small-piece articles are encapsulated and another body to relatively collide against each other in a vertical direction; and thus leveling the small-piece articles.SELECTED DRAWING: Figure 3
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