| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that, in order to prevent a device from sliding down on a wall surface because of the dead weight thereof, operation of a drive mechanism should be controlled or a large-scaled device for maintaining a state of adsorption by negative pressure is required.SOLUTION: An adsorption device includes: an annular belt having an adsorbing part; first and second rotation means between which the belt is suspended; and a protection means for protecting a part of the annular belt. The adsorption device further includes a regulation means for regulating rotation of the first and the second rotation means. |
