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. 23, 1999
Filed:
Dec. 15, 1997
Isao Ushikoshi, Nagano, JP;
Kabushiki Kaisha Sankyo Seiki Seisakusho, Nagano, JP;
Abstract
In a brushless motor (1), a stator base board (10) has three grooves (14) which are cut radially of a mounting hole (103). A core holder (32) holding a stator core (31) has three protrusions (33) which extend downwardly in the direction of the axis of the motor (1). Each of the protrusions (33) has a first engaging portion (331) having a width which is substantially equal to a width of the grooves (14), and a second engaging portion (332) which is semi-circularly protruded from the outer cylindrical surface of the first engaging portion (331). When each of the protrusions (33) is fitted in the respective cut portions (14), two gaps (34) are formed between the outer surfaces of the second engaging portion (332) and the inner surfaces of the cut portions (14). Through the gaps (34), coil terminals (351) are extended from the upper surface (102) of the stator base board (10) to the lower surface, and are then soldered to lands (43) of the wiring pattern.