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. 01, 2015
Filed:
Mar. 29, 2011
Takeru Fujinaga, Ube, JP;
Yasuhiro Nagoshi, Ube, JP;
Toshihito Sakai, Ube, JP;
Hiroyuki Ikeuchi, Ube, JP;
Takeru Fujinaga, Ube, JP;
Yasuhiro Nagoshi, Ube, JP;
Toshihito Sakai, Ube, JP;
Hiroyuki Ikeuchi, Ube, JP;
UBE INDUSTRIES, LTD., Ube-shi, Yamaguchi, JP;
Abstract
A stretching apparatus capable of optimally inhibiting neck-in of a film when the film is stretched in an MD (Machine Direction), has an advancing mechanism, a take-in mechanism, and film-holding unit placed at both end portions in a TD (Transverse Direction) of a transfer path of film between the mechanisms. The film-holding unit has a plurality of upper holding rollers placed in parallel at intervals in the MD of the film above the transfer path of film, and a plurality of lower holding rollers placed opposite to upper holding rollers below the transfer path of film such that the plurality of lower holding rollers work together with the plurality of upper holding rollers to sandwich the film vertically between the rollers. Upper holding rollers and lower holding rollers are rotatably supported such that their rotational axes are inclined outward in the TD of film toward a downstream side of the MD of film.