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. 18, 2008
Filed:
Sep. 13, 2004
Youichi Hasegawa, Kasugai, JP;
Sadayoshi Kajino, Nagoya, JP;
Youichi Hasegawa, Kasugai, JP;
Sadayoshi Kajino, Nagoya, JP;
Denso Corporation, Kariya, JP;
Abstract
A starter for cranking an internal combustion engine includes an electric motor, a planetary gear speed reduction device for reducing a rotational speed of the electric motor and an excessive-torque-absorbing device. The excessive-torque-absorbing device is composed of plural rotatable disks that form an internal gear of the speed reduction device, plural fixed disks and a disk spring. Both disks are alternately laminated and pressed in the laminated direction by the disk spring. When a rotational torque of the electric motor to be transmitted to a pinion gear of the starter exceeds a predetermined level, slippage occurs between the rotatable disks and the fixed disks, and thereby the excessive torque is absorbed.