| 摘要 |
<p>A suction cup (20) having an adsorption surface (32) is provided wherein the suction cup has a disk-like main suction cup unit composed of an elastically-deformable material and has an attachment surface. The attachment surface has a gel layer (48) composed of a gel, bonded thereto so as to cover the attachment surface. The adsorption surface is formed by the surface of the gel layer (48), and the gel layer (48) is composed of a center portion (50) composing the center of the adsorption surface, and a circumferential portion (54) composing the outer circumference of the adsorption surface. The outer circumferential portion has the thickness larger than the thickness of the center portion.</p> |
