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:
Nov. 28, 2017
Filed:
Apr. 19, 2013
Fukui Prefectural Government, Fukui-shi, Fukui, JP;
Hokushin Co., Ltd, Fukui-shi, Fukui, JP;
Shigeru Tomoda, Sakai-shi, Fukui, JP;
Abstract
A method and a device for opening a fiber bundle, capable of performing a fluctuating operation, at a high speed, of pushing a part of a conveyed fiber bundle by a contact member into a stress state and then separating the contact member from the fiber bundle so as to temporarily relax the fiber bundle, and also capable of reducing damage to the fiber bundle. The device for opening a fiber bundle includes a conveying portionfor pulling out a fiber bundle Tm from a yarn feeding bodyand conveying it in a fiber length direction, a fiber-opening processing portionfor opening the fiber bundle by moving a fiber in a width direction while bending the fiber by letting a fluid pass through the conveyed fiber bundle Tm, and a fluctuation imparting portionfor rotating a contact memberin a direction inclined with respect to a conveyance direction while bringing it into contact with the conveyed fiber bundle Tm and pushing a part of the fiber bundle Tm into a stress state, and then separating the contact memberfrom the fiber bundle Tm in the stress state so as to temporarily bring the fiber bundle Tm into a relaxed state.