The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 05, 1997

Filed:

Jun. 06, 1995
Applicant:
Inventors:

Keizo Narita, Fushimi-ku, JP;

Yasunari Kamikubo, Kusatsu, JP;

Masayuki Hatanaka, Kameoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ; B65H / ;
U.S. Cl.
CPC ...
2425304 ; 242547 ;
Abstract

An apparatus for slitting a web material such as paper, plastic film and the like into a plurality of web materials and then winding the web materials to form a plurality of rolls, the rolls being divided into two groups, one group of rolls being arranged side by side and coaxially to each other at the front of the apparatus, the other group of rolls being arranged side by side and coaxially to each other at the rear of the apparatus. Tracking rollers are disposed on the upper side of one group of rolls and the upper side of the other group of rolls. Actuators press the tracking rollers against the corresponding groups of rolls with a contact pressure therebetween. One group of rolls and the other group of rolls are supported by carriages. Drives moves the carriages downwardly in response to the increases in diameters of the rolls to thereby enable the rolls to increase in diameters.


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