发明授权
US07527708B2 Support body, holding device therefor, apparatus with said body for treatment of a web, and methods of forming an extended nip in the apparatus and controlling load in the nip
有权
支撑体，其固定装置，具有用于处理幅材的所述主体的装置，以及在该装置中形成延伸压区的方法以及控制压区中的负载
- 专利标题： Support body, holding device therefor, apparatus with said body for treatment of a web, and methods of forming an extended nip in the apparatus and controlling load in the nip
- 专利标题（中）： 支撑体，其固定装置，具有用于处理幅材的所述主体的装置，以及在该装置中形成延伸压区的方法以及控制压区中的负载
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申请号： US11408340申请日： 2006-04-21
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公开(公告)号： US07527708B2公开(公告)日： 2009-05-05
- 发明人: Tord Gustav Gustavsson
- 申请人： Tord Gustav Gustavsson
- 申请人地址： SE Karlstad
- 专利权人： Metso Paper Karlstad AB
- 当前专利权人： Metso Paper Karlstad AB
- 当前专利权人地址： SE Karlstad
- 代理机构： Alston & Bird LLP
- 优先权： SE0302767-9 20031021
- 主分类号： D21F3/06
- IPC分类号： D21F3/06 ; B32B5/02
摘要：
A support body for an apparatus having an extended nip defined between a contact surface of an elastically deformable support body and an opposed surface, the support body comprising a pressure chamber or several pressure chambers arranged to be pressurized for loading the nip via the contact surface. The support body can be provided with a holding device that forms a counter support for the pressure chamber or pressure chambers except at the side facing the contact surface. A method of forming the extended nip in the apparatus entails applying a pressure in at least one pressure chamber of the support body and expanding elastically deformable side portions of the support body. A further method of controlling the load in the extended nip entails designing the support body with several pressure chambers and setting the pressures in the pressure chambers in accordance with a predetermined pattern.
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