发明名称 |
ROLL FOR GUIDING WEB TYPE MATERIAL |
摘要 |
A roll for guidance of web type material, such as paper or cardboard, has a shell that features a multitude of bores. The roll is coordinated with a device for subjecting the roll interior to suction. To hold the web on the roll at standstill, part of these bores can be subjected to suction. In the operation of the roll, air trapped between the web and the roll shell can enter the roll also through the remaining bores and escape in the roll area that is not looped by the web.
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申请公布号 |
US5114062(A) |
申请公布日期 |
1992.05.19 |
申请号 |
US19890453619 |
申请日期 |
1989.12.19 |
申请人 |
J.M. VOITH GMBH |
发明人 |
KUHN, FRIEDRICH;DREFS, WOLFGANG;RUFF, HANS;SCHEUTER, SIEGBERT |
分类号 |
B65H18/20;B65H19/28;B65H20/12;B65H27/00 |
主分类号 |
B65H18/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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