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:
Feb. 26, 2013
Filed:
Aug. 11, 2010
Toru Shikayama, Fukuoka, JP;
Mikio Oshima, Fukuoka, JP;
Kenichi Sadakane, Fukuoka, JP;
Shogo Makino, Fukuoka, JP;
Toru Shikayama, Fukuoka, JP;
Mikio Oshima, Fukuoka, JP;
Kenichi Sadakane, Fukuoka, JP;
Shogo Makino, Fukuoka, JP;
Kabushiki Kaisha Denki, Kitakyushu-Shi, JP;
Abstract
A linear and curvilinear motor system includes: linear and curvilinear guiding devices movably guiding and respectively supporting right and left of a slider, each having a guide rail configured by linear tracks and a circular arc track and slider blocks; a motor unit having a stator with a stator linear section and a stator circular arc section and a mover with a linear section and provided for the slider and away from the stator with a gap interposed therebetween; and an encoder head and a hole sensor detecting positions of the linear tracks and the circular arc track. When a magnetic pole pitch of the linear section of the stator is a distance λm and a magnetic pole pitch of the circular arc section of the stator is an angle γm, a radius r of the circular arc track at the position detection point is defined as r=λm/γm.