Assembly and disassembly system with a spring retaining member for a brake actuation unit
US4865166A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1987 |
| Grant date | Sep 12, 1989 |
| Priority date | — |
| Expiry date | Jun 19, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61H15/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An assembly and disassembly system for a spring of a brake actuation unit, in particular for rail vehicles including a fluid pressure cylinder and a piston slidable in the cylinder. A cylindrical nut member is provided having a tubular portion extending outwardly of the piston. An output head is connected to the tubular portion and includes an outer tubular portion extending towards the piston. A compression spring is provided disposed between the tubular portion of the cylindrical nut member and the outer tubular portion of the output head. A sleeve member is disposed between the spring and the outer tubular portion of the output head. This sleeve is provided with a slot which extends in an axial direction along the sleeve. The outer tubular portion includes an opening which may be aligned with the sleeve slot. A member such as a pin is provided which extends through the opening into the slot holding the sleeve and the outer tubular portion in a position engaged around the spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.