| 摘要 |
A suction cup device is provided to attach a case to a sucked surface securely even though the sucked surface is curved. A suction cup device comprises a case, a sucker(14), a displacement unit, and a contact unit(16). The sucker includes two surfaces(24,26), one is a sucking surface and the other is a rear surface. The displacement unit is provided in the case. A central part of the displacement unit is supported in the radial direction of the rear surface of the sucker so that the central part moves in the thickness direction. The contact unit is provided in the case and comes into contact with the outer surface of a sucked surface when the sucking surface contacts to the sucked surface. The contact unit includes a plurality of contact elements which are arranged in the circumferential direction at regular intervals and come into contact with a part of the sucked surface.
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