| 摘要 |
PROBLEM TO BE SOLVED: To provide a sheet material fixing device for fixing tightly a sheet material to an arranging member. SOLUTION: In an exposure part 18, when a mounting lever 42 is mounted in a mounting groove 40 and a rear end chuck 36 is mounted on a peripheral surface of a rotary drum 24, a pressing plate 46 presses a printing plate 12 on the peripheral surface of the rotary drum 24 so that the printing plate 12 is fixed on the peripheral surface of the rotary drum 24 in a manner that an arm 48 presses the rotary drum 24 to press the rear end chuck 36 on a reverse rotary drum 24 side. A direction of a reaction F acted from the rotary drum 24 in consequence of pressing the rotary drum 24 by the arm 48 is toward an reverse circular arc R side against a tangent line L at a pressure position B of a circular arc R passing through the pressure position B of the rotary drum 24 by the arm 48 with a pressure position A of the printing plate 12 by the pressing plate 46 as a center. Accordingly, the rear end chuck 36 can pull the printing plate 12 by the reaction F and fix tightly the printing plate 12 on the peripheral surface of the rotary drum 24. COPYRIGHT: (C)2004,JPO
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