| 摘要 |
<p>Disclosed is a method of holding an object, which comprises: allowing an object (10) to be held as sucked on a holding surface (3) having a plurality of suction holes (4), each of which having a valve (6) therein which is designed to be operated in accordance with the difference between the pressure in the upper or outer space and that of the lower or inner space demarcated by said valve (6); wherein the valve (6) is opened by utilizing the phenomena that such pressure difference in those suction holes (4) closed by the object (10) becomes smaller, whereas the valves (6) are closed by utilizing the phenomena that such pressure difference in those suction holes (4) which are not closed by the object (10) and remain as open becomes greater, whereby to prevent loss of suction force to be exerted on the object (10), and an apparatus therefor. <IMAGE></p> |
