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:
Apr. 13, 2004
Filed:
Dec. 05, 2001
Toshio Oguri, Ritto, JP;
Norio Kawanishi, Ritto, JP;
Ishida Co., Ltd., Kyoto, JP;
Abstract
The present invention provides a wrapping device for welding a stretch film to a tray, and particularly a wrapping device that can provide a good appearance after the wrapping, and can suppress disadvantages in a transporting operation. A wrapping device covers a top opening of a tray T with a stretch film Fm, welds the stretch film to the tray T, and thermally cuts it. The wrapping device includes a stretch mechanism a control portion and a film winding portion The stretch mechanism stretches the stretch film Fm. The control portion controls the stretch mechanism to stretch the stretch film Fm at least before welding the stretch film Fm to the tray T. The film winding portion winds up the stretch film Fm after the thermal cutting.