Fastening device for a railroad car truck rocker seat
US5222441A · kind A · utility
Inventor
Key dates
| Filing date | Jun 15, 1992 |
| Grant date | Jun 29, 1993 |
| Priority date | — |
| Expiry date | Jun 15, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B39/34
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A connection is described for securing the ends of a transom to rocker seats which are each supported on a pair of rocker seat bearings that are designed to rest in u-shaped channels which are formed in the sideframes of a railroad car truck or bogie. The aligned holes in the overlapped transom ends and rocker seats are provided with oppositely tapered conical seats to matingly receive a conically shaped end of a nut which threadably engages the shaft of a bolt which has a conically shaped head which matingly fits in the conically tapered seat of the hole opposite the nut. A metal lock nut or an elastomeric locking ring can be provided to engage the nut and bolt to prevent them from loosening and eventually coming apart.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.