Topic The fact that it adsorbs into airtightness being, difficult target ones the weight is measured appropriately. SolutionsThe weight measurement functional equipped robot hand (20), the terminal axis of the robot (11) being installed in the end, the instrument which measures the weight of target ones (22) with, in the end of the instrument the terminal axis and the hollow frame which is installed in the same axis (24b) with, being installed in the end of the hollow frame, the adsorption section containment target ones with adsorption (26) with, the hollow frame lap revolution possibly taking the hollow component which you surround (32) with, the terminal axis (11) the casing which it supports (12) from having extended in direction, the terminal area for the hollow component which is jointed to the hollow componentBeing jointed by the hollow component (31, 31a) with, in the position where it corresponds to the peripheral surface of the hollow frame, the Drive section for the adsorption section Drive the adsorption section (37 and 42) with, it possesses, it communicates the Drive section for the adsorption section, to the internal space of the hollow frame one which was formed to the peripheral surface of the hollow frame opening (25) via at least. Choice figure Drawing 1
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