| 摘要 |
PROBLEM TO BE SOLVED: To improve absorption force of a bellows type absorption pad 19, while stabilizing an absorption state by the bellows type absorption pad 19. SOLUTION: A bellows 31 is integrally formed in a pad body 27. The bellows 31 alternately includes a plurality of mountain parts 33 projected outward in a radial direction and a plurality of valley parts 35 recessed inward in the radial direction. The bellows expands and contracts in the axial direction of the pad body 27. The inside of the bellows 31 is communicated to a connection hole 29 of the pad body 27. A washer 39 is firmly disposed inside of the individual mountain parts 33 of the bellows 31. COPYRIGHT: (C)2011,JPO&INPIT
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