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:
Sep. 04, 2001
Filed:
Dec. 07, 1999
Koyo Seiko Co., Ltd., Osaka, JP;
Abstract
An elastic shaft joint includes: a tube shaft; a shaft coaxially inserted in the tube shaft so that a predetermined axial region of the shaft overlaps with a predetermined axial region of the tube shaft; and a damper inserted between the predetermined axial region of the shaft and the predetermined axial region of the tube shaft for damping vibration and providing an elastic play in a rotation direction. The damper includes: an inner tube fitted to an outside of the predetermined axial region of the shaft and having radially outwardly extending projections at a number of places in a circumferential direction of an outer circumferential surface thereof; an outer tube fitted to an inside of the predetermined axial region of the tube shaft so as to form a desired gap opposite to the inner tube, and having recesses engaging with the respective projections of the inner tube with a gap in the rotation direction; and an elastic body bonded to an inner surface of the recesses of the outer tube in a state of non-contact with at least the projections of the inner tube.