POLISHING DEVICE OF PLATE-LIKE BODY, POLISHING METHOD OF PLATE-LIKE BODY AND MANUFACTURING METHOD OF PLATE-LIKE BODY

摘要

PROBLEM TO BE SOLVED: To provide a polishing device of a plate-like body, a polishing method of the plate-like body and a manufacturing method of the plate-like body capable of corresponding to the polishing of the large-size plate-like body and capable of preventing breakage and cracking from occurring on the plate-like body during the polishing.;SOLUTION: A plurality of polishing heads 16 are arranged in a conveyance direction A of a glass plate G and a conveyance path R of the glass plate G is divided into two in the width direction and is arranged so as to be partitioned into a set first polishing lane L1 and second polishing lane L2. Thereby, the polishing heads can correspond to the polishing of the glass plate G of a large-size. Further, a pressing roller 18 is placed between the polishing heads 16 having the different polishing lanes which are provided on the upstream side and the downstream side of the conveyance direction A of the glass plate G. Thereby, the floating of the glass plate G can be prevented and the breakage and the cracking on the glass plate G can be prevented from occurring.;COPYRIGHT: (C)2015,JPO&INPIT