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Patent Searching and Data


Title:
FILM GUIDE ROLL, AND APPARATUS FOR MANUFACTURING OPTICAL FILM
Document Type and Number:
Japanese Patent JP2013151338
Kind Code:
A
Abstract:

To provide a film guide roll capable of facilitating maintenance by enabling stable rotation over a long period of time, and to provide an apparatus for manufacturing an optical film using the film guide roll.

A film guide roll 6 includes a roll body 7 which rotates by coming into contact with an outer surface of a resin film 2, a supporting shaft 9 which is arranged in a liquid tank 3, and a bearing 10 for pivotally supporting a roll body 7 on the supporting shaft 9. The bearing 10 includes annular inside permanent magnets 11A and 11B and an annular outside permanent magnet 12. The inside permanent magnets 11A and 11B and the outside permanent magnet 12 are magnetized in such a manner that magnetic poles are directed not only in radial directions but also in opposite directions. The inside permanent magnets 11A and 11B are arranged away from each other in axial directions, and the outside permanent magnet 12 is arranged via an air gap 13 on an outer peripheral side of an axial intermediate position of the inside permanent magnets 11A and 11B.


Inventors:
MORI HISAKAZU
IMON YOSHIO
Application Number:
JP2012012131A
Publication Date:
August 08, 2013
Filing Date:
January 24, 2012
Export Citation:
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Assignee:
SUMITOMO CHEMICAL CO
International Classes:
B65H27/00; B29C55/04; G02B5/30; B29L7/00; B29L11/00; F16C13/00; F16C13/02; F16C32/04
Attorney, Agent or Firm:
Sumio Tanai
Naozumi Hiroyasu
Norihiko Ara
Hiroyuki Kato
Mitsunaga Igarashi