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    • 2. 发明申请
    • DRAWING APPARATUS AND METHOD OF DRAWING SHEET
    • 绘图装置和绘图方法
    • US20120094819A1
    • 2012-04-19
    • US13264030
    • 2010-03-29
    • Hideki AzumaYasuo Murakami
    • Hideki AzumaYasuo Murakami
    • B29C55/18
    • D06C3/06B29C55/08B29C55/18
    • A drawing apparatus to draw a sheet includes a first protrusion group aligned in rows along a drawing direction of the sheet; and a second protrusion group aligned in rows along the drawing direction and that meshes with the first protrusion group. The sheet is bitten in between the first and second protrusion groups. A space in which the sheet is bitten with the first protrusion group and the second protrusion group includes a first region, a second region adjacent to the first region, and a third region adjacent to the second region opposite to the first region. A drawing amount of the sheet in the case that the sheet is bitten with the first protrusion group and the second protrusion group in the second region is greater than the drawing amount in the first region and is smaller than the drawing amount in the third region.
    • 拉伸片材的拉伸装置包括沿着片材的拉伸方向排列成排的第一突起组; 以及沿着拉拔方向排列成行并与第一突起组啮合的第二突起组。 片材被咬在第一和第二突起组之间。 其中片材被第一突起组和第二突出组咬住的空间包括第一区域,与第一区域相邻的第二区域和与第一区域相对的第二区域相邻的第三区域。 在第二区域中第一突起群和第二突起群被咬住的情况下的片材的拉伸量大于第一区域中的拉伸量,并且小于第三区域中的拉拔量。