| 摘要 |
PROBLEM TO BE SOLVED: To restrain manufacturing cost lower than a conventional suction roll, by providing a suction roll without causing breaking, separation and reduction in a web quality thereby, even if the service temperature is changed. SOLUTION: A cylindrical suction member 20 is supported by both end part support disks 6 and an inside support disk 4, and a plate-like spacer 5 is integrally sandwiched between the mutual disks. One of both end part support disks 6 is joined to a rotary shaft, and another one is separately sealed without being joined to the rotary shaft 1. Even if thermal expansion coefficients of the rotary shaft 1, both end part support disks 6, the inside support disk 4 and the plate-like spacer 5 are largely different, strength and surface accuracy are secured against a temperature change, and an excellent web is provided. COPYRIGHT: (C)2010,JPO&INPIT |
