External clamping band for air spring
US4946144A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1989 |
| Grant date | Aug 7, 1990 |
| Priority date | — |
| Expiry date | Mar 30, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/0463
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An annular clamping band is concentrically engaged in an interference force-fit relationship with the outer annular surface of the sidewall of an end cap of an air spring primarily intended for use for motor vehicles. The band restricts outward movement and creep of the sidewall and retains an open end of a flexible sleeve which forms the fluid pressure chamber of the air spring, in a compressed state between an annular internal sealing ring and an annular recess formed on the inside surface of the sidewall, to maintain the airtight sealing engagement therebetween. The clamping band is forced axially about the outer surface of the end cap sidewall and is restrained from axial movement therealong by a plurality of retaining ribs projecting outwardly from the top surface of the end cap and by an annular outwardly extending rib on a lower end of the end cap sidewall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.