发明名称 Sheet positioning apparatus in a sheet feeding section of a printing press
摘要 A sheet-holding-down member provided in a sheet feeding section of a printing press has a sheet-holding-down member that has a sheet-holding-down part that holds down from above an oncoming sheet to prevent a lateral edge of the sheet from being curled upward when the sheet abuts a lateral-edge abutment member. The sheet-holding-down member is pivotally movable about a roller support shaft so as to allow the sheet-holding-down part to be movable close to and away from an upper surface of a feeder board, on which the sheet is placed. An adjustment screw has a lower end that limits movement of the sheet-holding-down member so as to prevent the same from moving close to the upper surface of the feeder board as passing a predetermined height limit. The sheet-holding down member is urged downward by a coil spring. In a case where a sheet having a thickness larger than a predetermined thickness is used, the sheet-holding-down member is pivotally moved upward against the urging force of the coil spring, thereby allowing the sheet-holding-down part to move upward away from the upper surface of the feeder board.
申请公布号 US7635128(B2) 申请公布日期 2009.12.22
申请号 US20040016456 申请日期 2004.12.16
申请人 RYOBI LTD. 发明人 SARADA HIROYUKI
分类号 B41F21/14;B65H9/16;B65H5/06;B65H9/08;B65H9/10 主分类号 B41F21/14
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