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21. 发明授权

US6042695A Shoe press belt with lateral variations in hardness 失效
标题翻译：具有横向变化硬度的鞋带
公开(公告)号：US6042695A
公开(公告)日：2000-03-28
申请号：US24542
申请日：1998-02-17
申请人： Atsushi Ishino
发明人： Atsushi Ishino
IPC分类号： D21F7/08 , D21F3/00 , D21F3/02
CPC分类号： D21F3/0227 , Y10T428/24777 , Y10T428/24983
摘要： A shoe press belt has both sides coated with a resin layer and one or both layers with side edge portions softer than the middle portion of the resin layer. The hardness of the side edge portions may first decrease stepwise laterally outwardly from the middle portion to a section which overlies the edge of the shoe, and then increase stepwise laterally outwardly to the edge of the belt. A first stepwise reduction in hardness may begin laterally inward of the edge of the wet paper sheet and extend laterally outwardly to the edge of the wet paper sheet, where a second stepwise reduction begins that extends laterally outwardly beyond the edge of the shoe. Laterally outwardly of the second reduction, a stepwise increase in hardness extends to the edge of the belt. Alternatively, each side edge portion may be of a single hardness, less than the hardness of the middle portion, and each side edge portion overlies one of the side edges of the shoe.
摘要翻译：靴形压榨带的两侧涂覆有树脂层和一个或两个层，其侧边部分比树脂层的中间部分柔软。侧边缘部分的硬度可以首先从中间部分横向向外逐渐降低到覆盖在鞋的边缘上的部分，然后横向向外逐渐增加到带的边缘。硬度的第一逐步降低可以从湿纸张的边缘的横向内侧开始并且横向向外延伸到湿纸张的边缘，其中第二阶梯式减小开始横向向外延伸超过鞋的边缘。在第二次压下的向外侧，硬度的逐步增加延伸到带的边缘。或者，每个侧边缘部分可以具有小于中间部分的硬度的单一硬度，并且每个侧边缘部分覆盖在鞋的一个侧边缘上。

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