Collapsible hitch
US5054804A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 30, 1990 |
| Grant date | Oct 8, 1991 |
| Priority date | — |
| Expiry date | May 30, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61D45/005
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A king pin locking plate assembly having a locking plate provided on the underside with a pair of cooperating jaws pivotally supported under the locking plate and being urged into open position by a spring member positioned between the two jaws, the two jaws having a frontal portion facing a king pin, the frontal portion defining a lock surface which is adapted to be abutted by a free end of a jaw lock pivotally supported in the king pin receiving slot by a pivot which engages a bifurcated end of the jaw lock. A jaw lock stop is situated in the bifurcated end of the jaw lock and, because of its internal elongated opening, is capable of maintaining the jaw lock in either a king pin securing position or in a king pin releasing position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.