| 摘要 |
PROBLEM TO BE SOLVED: To provide a large-sized signboard system which makes it possible to successively display a plurality of sheet units of different display contents. SOLUTION: The signboard system has a plurality of sheet clamps which contain a cylindrical signboard sheet formed by coupling a plurality of the sheet units and hold their upper edges and lower edges respectively at a plurality of points in order to transfer the signboard sheet in a horizontal direction, tension loading means which exert tension in a vertical direction in relation to the signboard sheet, roller chains on an upper side and lower side which are respectively integrated with the sheet clamps on the upper edge side and the lower edge side and a pair of upper and lower roller chain transfer means which transfer the upper and lower roller chains respectively in a horizontal direction in the prescribed transfer route including straight portions and curved portions within a casing. COPYRIGHT: (C)2005,JPO&NCIPI
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