Air spring and bogie
US10538257B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 17, 2016 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Jul 9, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/052
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An air spring according to the present disclosure includes: an inner cylindrical member; an outer cylindrical member provided on the inner cylindrical member; a diaphragm coupled with the outer cylindrical member and the inner cylindrical member; and a stopper provided rotatably with respect to a circumferential direction of the inner cylindrical member. The stopper has a raised portion raised towards the outer cylindrical member and moving on the inner cylindrical member in the circumferential direction. The outer cylindrical member has a plurality of raised portions raised toward the inner cylindrical member. The plurality of raised portions of the outer cylindrical member are different in height. At least one of the outer cylindrical member's raised portion and the stopper's raised portion is restorable against circumferential deformation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.