Patent ID: 7628362

Claim:
An adhesion device comprising: a pad ( 21 ) having a bottom surface attached to an adhesion surface; a center element ( 23 ) fixed upright at the center of the top surface of the pad ( 21 );a housing ( 22 ) placed on the top surface of the pad ( 21 ) and having a hole through which the center element ( 23 ) passes; a ring-shaped leaf spring ( 27 ) which is equipped at the outer circumference of the housing ( 22 ) and presses the outer circumference of the top surface of the pad ( 21 ); and an adhesion controller ( 24 ) connected with the top end of the center element ( 23 ) by an axis ( 24 c ), wherein the adhesion controller ( 24 ) comprises a lever ( 24 a ) and a press ( 24 b ), such that, when the lever ( 24 a ) is rotated around the axis ( 24 c ), the press ( 24 b ) presses down the top surface of the housing ( 22 ) and the center of the pad ( 21 ) connected with the center element ( 23 ) is moved upward, resulting in an expansion of the space between the pad ( 21 ) and the adhesion surface and a pressure lower than the atmospheric pressure, wherein the ring-shaped leaf spring ( 27 ) has separated branches ( 27 a ) at the outer circumference and the branches ( 27 a ) are equipped with bights ( 27 b ) that press the top surface of the pad ( 21 ).