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    • 2. 发明授权
    • Removable supply and uptake assemblies for lithographic plate material
    • 平版印刷材料的可拆卸供应和吸收组件
    • US5657692A
    • 1997-08-19
    • US435094
    • 1995-05-04
    • Edwin G. TheriaultJames R. MossJohn P. GardinerDouglas D. Fuller
    • Edwin G. TheriaultJames R. MossJohn P. GardinerDouglas D. Fuller
    • B41C1/10B41F30/06B41J7/20
    • B41C1/1083B41F30/06
    • A system for accepting and winding lithographic plate material around a cylinder adapted for rotation about a longitudinal axis includes supply and uptake spools and an alignment tool for use therewith. The cylinder is hollow, having an interior and an axial opening thereto, and includes means within its interior for selectably engaging supply and uptake spools. The engagement means are in fixed alignment with one another and are disposed within the cylinder so as to define an unobstructed winding path extending around the cylinder from the supply spool to the uptake spool. Plate material stored on the supply spool is extended around this path and affixed to the uptake spool. The tool includes means for releasably gripping supply and uptake spools, and alignment components for aligning the gripping means to at least one engagement means within the cylinder when the tool is introduced therein. The tool is removed from the cylinder following release of the spools to the engagement means.
    • 用于接受和卷绕围绕纵向轴线旋转的圆柱体的平版印刷板材料的系统包括供应和吸收卷轴以及与其一起使用的对准工具。 圆筒是中空的,具有内部和轴向开口,并且在其内部包括用于可选择地接合供应和吸收线轴的装置。 接合装置彼此固定对准并且设置在气缸内,以便限定围绕气缸从供给卷轴延伸到吸收卷轴的无阻碍的卷绕路径。 储存在供应卷轴上的板材在该路径周围延伸并固定到吸收卷筒。 该工具包括用于可释放地夹持供应和吸收线轴的装置,以及对准部件,用于在将工具引入其中时将夹持装置与筒体内的至少一个接合装置对准。 在将线轴释放到接合装置之后,将工具从气缸中移除。
    • 3. 发明授权
    • Clamp assembly for lithographic plates
    • 平版印刷用夹具
    • US5584242A
    • 1996-12-17
    • US433840
    • 1995-05-04
    • Douglas D. FullerLawrence CarmeEdwin G. Theriault
    • Douglas D. FullerLawrence CarmeEdwin G. Theriault
    • B41F27/12
    • B41F27/1231Y10S101/36
    • A clamp assembly for clamping a lithographic plate to a cylinder includes a base defining a channel and a plate mounted to the base and overlying the channel. An elongated cam member is rotatably positioned in the channel, the member having a cam surface profiled so that when the cam member is in a first angular position, that surface extends relatively close to the plate and when the cam member is in a second position, that surface is further away from the plate. Stops are included for establishing the two positions of the cam member. When the cam member is in its second position and an edge margin of a recording medium is inserted between the cam member and the plate, moving the cam member to its first position causes the clamp assembly to simultaneously grip and pull on the recording medium. An interposer may be positioned between the plate and the cam member to prevent direct engagement of the recording medium by the cam member and thus prevent the clamp assembly from pulling on the recording medium while clamping the medium.
    • 用于将平版印刷板夹持到圆柱体的夹具组件包括限定通道的基座和安装到基座并且覆盖通道的板。 细长的凸轮构件可旋转地定位在通道中,该构件具有凸轮表面的轮廓,使得当凸轮构件处于第一角度位置时,该表面相对靠近板延伸,并且当凸轮构件处于第二位置时, 该表面更远离板。 包括用于建立凸轮构件的两个位置的止动件。 当凸轮构件处于其第二位置并且记录介质的边缘边缘插入在凸轮构件和板之间时,将凸轮构件移动到其第一位置使得夹具组件同时夹紧并拉动记录介质。 插入器可以定位在板和凸轮构件之间,以防止记录介质由凸轮构件直接接合,从而防止夹紧组件在夹持介质的同时拉动记录介质。