Soundproof wheel for railway vehicle
US9770942B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2014 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Mar 24, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60B2900/321
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A soundproof wheel includes a soundproofing device which is mounted to an inner peripheral surface of a rim section of the wheel. The soundproofing device is provided with: a fixing ring which is fitted in and fixed to a groove formed in the inner peripheral surface of the rim section; an elastic body section which is adhered to an outer peripheral surface of the fixing ring, is disposed within the groove, and has a plurality of elastic body pieces; and an additional mass section which is adhered to an opposite side of the elastic body section with respect to the fixing ring, is disposed within the groove, and has a plurality of additional mass pieces. The soundproofing device includes a plurality of dynamic vibration absorbers, each having an elastic body piece and an additional mass piece. This soundproof wheel allows for reduction in wheel vibration noise and is highly durable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.