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. 30, 2003
Filed:
Jun. 30, 2000
Kouhei Ohsono, Wako, JP;
Shigeru Kanehara, Wako, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A belt for a continuously variable transmission is provided, which is comprised of metal ring assemblies each having a plurality of endless metal rings laminated one on another, and a plurality of metal elements each having ring slots into which the metal ring assemblies are fitted, and the belt is wound around a drive pulley and a driven pulley to transmit a driving force between the pulleys. When the belt leaves the driven pulley, the metal element falls forward in the direction of advancement with respect to the metal ring assembly. For this reason, a rear end of a saddle surface of the ring slot in the direction of advancement is brought into strong abutment against an inner circumferential surface of the metal ring assembly to produce a concentrated stress, thereby shortening the life of the metal ring assembly. In order to prevent this, the radius of curvature of the rear end of the saddle surface in the direction of advancement is larger than that of its front end to reduce the concentrated stress. When the metal element is formed by a fine blanking process, the radius of curvature of the rear end of the saddle surface in the-direction of advancement is automatically increased by a punching shear drop.