Quick connect-disconnect coupling for snow plow
US4962599A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 12, 1990 |
| Grant date | Oct 16, 1990 |
| Priority date | — |
| Expiry date | Apr 12, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01H5/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A quick connect-disconnect coupling is provided for snow plows and like devices. The coupling includes a hitch ear plate and a retaining ear plate preferably attached to the plow. The hitch ear plate has a configured gathering surface and the retaining ear plate has a hitch pin opening extending therethrough. A bracket arrangement preferably attached to the vehicle contains a spring biased axially movable hitch pin. The hitch ear plate positions the retaining plate so that its opening is in registry with the hitch pin when the plow is to be coupled to the vehicle. Rotation of the hitch pin allows the spring to axially move the hitch pin and snap the pin through the hitch pin opening to lock the plow to the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.