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:
Jun. 19, 2001
Filed:
Jun. 22, 1999
Toshifumi Hibi, Yokosuka, JP;
Nissan Motor Co., Ltd., Tokyo, JP;
Abstract
An input disk (,) of a toroidal continuously variable transmission (,) is connected to a rotation shaft (,) via a ball spline structure. Plural power rollers gripped between the input disk (,) and an output disk (,) are disposed at a predetermined angular interval around the rotation shaft (,). A group or groups of spline units (,) forming the ball spline structure respectively comprise pairs of spline grooves (,A) and balls (,B) held inside these grooves. The input disk (,) exerts a thrust load on the power rollers (,) and their reaction force causes the input disk (,) to deform. By forming the ball spline structure from a group or groups of the spline units (,) in which the spline units (,) are disposed at the same angular interval as the power rollers (,),this deformation is prevented from causing the rotation shaft to suffer rotational vibration.