Multi-trailer, dolly-connected, movable-axle, containerized cargo trailer system
US4111451A · kind A · utility
Inventor
Key dates
| Filing date | Jul 15, 1977 |
| Grant date | Sep 5, 1978 |
| Priority date | — |
| Expiry date | Jul 15, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D53/0864
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A novel system is disclosed for carrying containerized loads, which system basically comprises at least two trailers, at least one of which may be pulled from either end, such that a novel dolly may be utilized to interconnect said trailers for transport, while at the same time facilitating end loading cargo dock access to a plurality of containers mounted on each trailer. Additionally, a novel dolly is disclosed for coupling two trailers together for hauling, which dolly preferably comprises a plurality of axles, each of which is movable with respect to the frame of the dolly and with respect to each other to facilitate multi-directional trailer hauling, better weight distribution, easy hook-up, and convenient storage. The preferred embodiment dolly comprises means for limiting the pivotal action of the dolly with respect to its associated trailers, particularly during hook-up, loading or unloading operations. Finally, the tracking members of each of the trailers and dolly are provided with service blocks which facilitate the easy removal or addition of one or more axles from these units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.