Paver attachment hitch
US4062559A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 3, 1976 |
| Grant date | Dec 13, 1977 |
| Priority date | — |
| Expiry date | Sep 3, 1996 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C2301/08
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Apparatus for effecting a push pull driving connection between a pair of vehicles disposed in tandem relation with one end of each vehicle juxtaposed relative to the other. The apparatus has a rocking beam mountable on the juxtaposed end of one vehicle for pivotal movement thereon in a horizontal plane. Bumper rollers are carried by and project from said rocking beam in axially horizontal orientation for rolling engagement with the proximal wheels of said other vehicle whereby movement of one vehicle towards the other will procure engagement of the bumper rollers with the wheels as aforesaid and upon continuation of such movement in the same general direction will transmit a pushing action to said other vehicle through the engagement of said bumper rollers with said wheels. A beam extender is at each end of said rocking beam and there is a coupling arm on each said beam extender for hooking engagement with a said proximal wheel. Each beam extender is movable between a retracted position, in which its coupling arm is disposed in engagement with a said proximal wheel, and a neutral position, in which said arm is disengaged and spaced from said wheel. A spacer interconnects said beam …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.