Rail vehicle brake slack adjuster
US8307961B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 7, 2008 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Jan 23, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61H15/0028
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rail vehicle brake slack adjuster comprises an axially movable, sleeve-shaped driver element (22) adapted to receive an axially applied braking force in a brake application direction, a spindle (16) axially movable within the driver element, an adjuster nut (34) in non-self-locking thread engagement with the spindle, clutch means between the driver element and the adjuster nut, and a barrel spring (30) biasing the spindle in the brake application direction. The adjuster has a combination of a first clutch (36) comprising a clutch surface on the driver element (22) directed in the brake application direction and a corresponding clutch surface on the adjuster nut (34) and a second clutch (38) comprising a clutch surface on the driver element (22) directed in the direction opposite to the brake application direction and a corresponding clutch surface on an adjuster nut sleeve (37). The adjuster nut sleeve (37) is axially movable on the adjuster nut (34).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.