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. 14, 2015
Filed:
Mar. 15, 2010
Seiichi Toyonaga, Toyota, JP;
Satoshi Fujiura, Hekinan, JP;
Kouichirou Kouguchi, Toyota, JP;
Yoshihiro Murase, Motosu, JP;
Satoshi Konagaya, Kani, JP;
Masahito Iwata, Seto, JP;
Sadayoshi Hasegawa, Inazawa, JP;
Seiichi Toyonaga, Toyota, JP;
Satoshi Fujiura, Hekinan, JP;
Kouichirou Kouguchi, Toyota, JP;
Yoshihiro Murase, Motosu, JP;
Satoshi Konagaya, Kani, JP;
Masahito Iwata, Seto, JP;
Sadayoshi Hasegawa, Inazawa, JP;
Aoyama Seisakusho Co., Ltd., Niwa-Gun, JP;
Toyota Jidosha Kabushiki kaisha, Toyota-Shi, JP;
Abstract
A female thread member capable of preventing seizing caused by inclined insertion, and being smoothly fastened from any directions in which a bolt is inserted, and a fastening member using the female thread member. A non-thread portion is formed on an inner peripheral surface of a female thread member body having a female thread for a length corresponding to at least one pitch from an end surface on a bolt-inserting side, and a projection which comes into contact with a flank surface of a male thread of an inserted bolt is formed on a line extending from a helical line of the female thread. The female thread member is used in combination with the bolt having no incomplete thread portion, and there is no adverse possibility of seizing regardless of any directions in which the bolt is inserted.