Truck hitch
US3990721A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 27, 1975 |
| Grant date | Nov 9, 1976 |
| Priority date | — |
| Expiry date | May 27, 1995 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C2301/08
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Apparatus for effecting a driving connection between a pushing vehicle and a pushed vehicle. The apparatus has pushers attachable to and providing a bumper formation on the leading end of the pushing vehicle for pushing engagement with the wheels of the other vehicle. Each pusher includes a frame pivotally attachable to the leading end of the pushing vehicle for left and right swinging thereon about a vertical axis independently of the frame of the other pusher, and a coupler slidably carried by the frame for reciprocable sliding movement in a substantially horizontal direction transversely of the pushing vehicle. An arm forming part of the coupler has a free end normally extending forwardly of the frame, and a lateral projection on the free end extends transversely of the pusher vehicle and is spaced from the frame to enable the lateral projection to be positioned, by sliding movement of the coupler within a wheel rim chamber of the other vehicle for transmission of a pulling force from the other vehicle to the pushing vehicle. Means are provided for laterally moving the coupler into and out of the wheel rim chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.