Toroidal type continuously variable transmission and method of manufacturing disk for toroidal type continuously variable transmission
US6468180B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1999 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | Jan 11, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H15/38
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A disk for a half toroidal type continuously variable transmission is manufactured through the following processes. In step S1, a work as a base material mass is heated to a temperature suitable for forging. In step S2, the work is forged into the work having a portion corresponding to a protrusion of the disk using a first die set. In step S3, the work is forged into the work which has a hole corresponding to a mounting hole of the disk using a second die set. In step S4, the work is forged into the work which has a portion corresponding to a skirt portion of the disk using a third die set. In step S5, the work receives punching, machining and the like to finally obtain the disk product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.