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:
Dec. 01, 2015
Filed:
Aug. 25, 2010
Shigehiko Omata, Mito, JP;
Koji Harada, Hitachinaka, JP;
Shigenori Nakazato, Mito, JP;
Mitsuhiro Arai, Hitachinaka, JP;
Shouta Ohkoshi, Hitachinaka, JP;
Shigehiko Omata, Mito, JP;
Koji Harada, Hitachinaka, JP;
Shigenori Nakazato, Mito, JP;
Mitsuhiro Arai, Hitachinaka, JP;
Shouta Ohkoshi, Hitachinaka, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;
Abstract
Starter for vehicle-use engine which can detect a rotational speed signal in a stable manner even when a clutch cover is mounted on an outer periphery of a clutch outer of a one-way clutch. The starter D for a vehicle-use engine which transmits a rotational drive force of a stator to a ring gear of a crankshaft by a pinion of the starter includes: a one-way clutch which is arranged between the pinion and an armature shaft of the stator; and a rotational speed detection device which detects a rotational speed of the pinion. A part to be detected for a rotational speed is formed of through holes formed on a circumference of the clutch cover, and a circular circumferential groove formed on an outer peripheral surface of a clutch outer along the circumference on which the through holes are formed.