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Patent Searching and Data


Title:
WEB WIDENING APPARATUS
Document Type and Number:
Japanese Patent JPH11293581
Kind Code:
A
Abstract:

To provide a web widening apparatus reducing the slipping between a web and a sleeve accompanying the enlargement and speed-up of a machine, and capable of ensuring the effects of widening and smoothing down of the web.

This web widening apparatus comprises a curved fixed axis metal 2, and a sleeve 3, which is supported on the fixed axis metal 2 and freely rotatable around the fixed axis 2; and the sleeve 3 is made to touch with a travelling web 20 to widen the width of the web 20. This web opening apparatus is provided with a suctioning exhausting unit, a suctioning hole 10 communicating te suctioning exhausting unit to the inside of the sleeve 3 is formed on the fixed axis metal 2, and plural air holes 12 for communication between the inside and outside of the sleeve 3 are formed on the entire peripheral surface of the sleeve 3.


Inventors:
KODOI YASUHISA
NATSUI KUNIKATSU
Application Number:
JP1998000101413
Publication Date:
October 26, 1999
Filing Date:
April 13, 1998
Export Citation:
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Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
D06C3/06; B65H23/025; D21F1/40; (IPC1-7): D21F1/40; B65H23/025; D06C3/06
Attorney, Agent or Firm:
真田 有