Extension nip roller for nip through which the fiber web passes

Japanese Patent JP6339196

B2

The invention relates to an extended nip roll 1 for use in a nip N through which a fibrous web W is to be passed. The roll has two axial ends 3, 4 and comprises a support beam 5 having an axial extension between the axial ends 3, 4 of the extended nip roll and a press body 6 with an axial extension and which press body 6 is substantially parallel with the support beam 5 as well as means 7 supported by the support beam 5 for causing the press body to move or expand radially outwards towards a counter roll 2 to form a nip N. The inventive roll also comprises a tubular flexible jacket 8 with two axial ends 12, 13, the tubular flexible jacket 8 forming a loop around the press body 6 and the support beam 5. At each end of the extended nip roll 1, there is an end wall 9, 10 which is rotatably journalled to allow each end wall 9, 10 to rotate about the support beam 5. Each end wall 9, 10 being attached to an axial end 12, 13 of the tubular flexible jacket 8 such that the end walls 9, 10 and the tubular flexible jacket 8 form together an enclosed space 14. On the support beam 5, there is at least one support element 15 for the tubular flexible jacket 8 which support element 15 is arranged to support a part of the tubular flexible jacket 8 at a location spaced away from the press body 6. According to the invention, the at least one support element 15 is arranged to be movable in a circumferential direction such that it can be moved to different positions along the circumference of the tubular flexible jacket 8.

Mats, Yorrel

JP2016530955A

June 06, 2018

October 29, 2014

Click for automatic bibliography generation  

VALMET AKTIEBOLAG

D21F3/02

JP2000178893A
JP4327289A
JP5509384A
JP62125089A
JP11107183A

Hiroyuki Nagai
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Kazuo Okamura

Previous Patent: The lighting installation and light containing the unified antenna

Next Patent: NONVOLATILE SEMICONDUCTOR STORAGE DEVICE