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.
Patent No.:
Date of Patent:
Dec. 29, 1987
Filed:
Apr. 23, 1986
Yukimichi Matsumoto, Hirakata, JP;
Kabushiki Kaisha Fuji Tekkosho, Osaka, JP;
Abstract
A multi-spindle turret winder of surface winding--center winding system provided with a first contact roller partaking in initial winding from a first winding station to an intermediate station and a second contact roller partaking in, after change-over from the former, winding-up to roll products from the intermediate station to a second winding station. In order to perform a transparent winding under a constant tension on a stretch film without air being entrapped in roll products, speed control means is provided to impart, immediately before press contact, a peripheral speed slightly faster than the first contact roller to the second contact roller and, after press contact, a peripheral speed gradually increasing at an increment proportional to the turning angle of the turrets during movement from the intermediate station to the second winding station; and a cam is provided which is actuated interlocking with the indexing motion of the turrets and has such a profile that limits a displacement magnitude of the first contact roller so as to increase variations in path length of the film in proportion to the turning angle of the turrets.