| 摘要 |
PROBLEM TO BE SOLVED: To use a shelf smoothly without providing a special member on the shelf. SOLUTION: This driving head for rocking can 16 is provided with small blades 14, each of which is driven by the first shaft 7, and small blades 14 which cooperates with fingers 23 to drive the second shaft 18 of a rocking machine arranged in the rocking can. The fingers 23 are projected from a plate 22 engaging with a grip constituting a main body 10 arranged beneath the shelf and having the whole swanneck-like shape. The main body 10 has an upper part intersecting the first shaft 7, and the first shaft 7 supports a device for preventing the small blades 14 and the respective-rocking cans 16 from rotating, and drives the device.
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