Continuously variable transmission belt and continuously variable transmission
US8944946B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 12, 2007 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Aug 27, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H57/0489
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A continuously variable transmission belt includes rings each superimposing annular component pieces on each other's inner and outer peripheries, and plural elements attached to the rings side by side in a circumferential direction. Each element includes a neck portion. The rings are disposed on opposite sides of the neck portion. The elements contact a driving pulley and a driven pulley. A lubrication oil discharge mechanism discharges out a lubrication oil in at least one of a gap between the component pieces, and a gap between each ring and the elements. A function of discharging the lubrication oil present in a region remote from the neck portion is higher than a function of discharging the lubrication oil present in a region near the neck portion. Thereby, the rings to which the elements are attached or the component pieces of the rings restrain decline in the centering characteristic in the width direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.