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:
May. 22, 2007
Filed:
Apr. 27, 2005
Yuuji Takahashi, Anjo, JP;
Sinsuke Mori, Anjo, JP;
Tooru Horiyama, Anjo, JP;
Sinji Hirabayashi, Anjo, JP;
Yuuji Takahashi, Anjo, JP;
Sinsuke Mori, Anjo, JP;
Tooru Horiyama, Anjo, JP;
Sinji Hirabayashi, Anjo, JP;
Makita Corporation, Anjo, JP;
Abstract
A fastening nut includes an operation member, a female threaded member, and a control device. The operation member is operable by an operator to rotate in a fastening direction and a loosening direction. The control device is coupled between the operation member and the female threaded member and includes a plurality of movable members, such as nut segments and wedge members, and a plurality of control members, such as rollers and balls. The movable members are arranged in a circumferential direction about the nut axis. Each movable member is movable between a first position and a second position. The first positions enables fastening of the female threaded member onto the male threaded member. The second position enables loosening of the female threaded member. The control members either prevent or allow the movement of each movable member from a first position to a second position.