Patent ID: 8316908

Claim:
A preliminary bonding device for laminated glass, which bonds superposed glass plates together through an interlayer that is sandwiched between the glass plates by sandwiching and pressing the glass plates from both outside surfaces of the superposed glass plates, the preliminary bonding device comprising: a pair of upper and lower arcuately-curved rigid fixed shafts, each of which has an arc shape at a middle portion thereof and a linear shape at both ends thereof; a pair of curved rolls ( 10 , 10 ), each of which is formed from a covering roll member ( 15 ) of a flexible resin layer that covers whole outermost circumferential surfaces of a plurality of short rigid cylindrical members ( 14 ) that are provided at an outer circumference of the fixed shaft ( 11 ) and are able to rotate through bearings ( 12 ); a roll driving means ( 20 ) which drives and rotates the covering roll member ( 15 ) of the curved roll ( 10 ); a curved portion inclination angle adjusting means ( 30 ) which changes a curved rounded shape of a gap portion between the pair of upper and lower curved rolls ( 10 , 10 ), viewed from an incoming direction of the glass plates between the curved rolls ( 10 , 10 ), by simultaneously rotating the fixed shafts ( 11 , 11 ) of the pair of upper and lower curved rolls ( 10 , 10 ) and adjusting an inclination angle of the curved middle portion of the fixed shaft ( 11 ); and a roll pressing means ( 60 ) which sandwiches and presses the glass plates between the curved rolls ( 10 , 10 ).