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. 19, 2013
Filed:
Sep. 22, 2010
Shusuke Iizuka, Gunma-ken, JP;
Manabu Watanabe, Gunma-ken, JP;
Shusuke Iizuka, Gunma-ken, JP;
Manabu Watanabe, Gunma-ken, JP;
Yamada Manufacturing Co., Ltd., Kiryu-shi, Gunma-ken, JP;
Abstract
An unbalance correction device of a propeller shaft includes a propeller shaft configured by a plurality of annular dampers being elastic members mounted along an axial direction between a metallic outer shaft and a metallic inner shaft and a balance weight in which a primary weight plate part and an auxiliary weight plate part that are formed in an arc along a width direction and include a substantially quadrilateral planar shape are formed continuously and integrally along a longitudinal direction, and a protruding piece is protrusively formed on a concave arced surface on a rear surface side of the primary weight plate part and from each corner part at four locations. The primary weight plate part is disposed in a non-mounted area of the dampers at an axial direction end of the outer shaft coinciding with an axial direction of the outer shaft.