AN AMPHIBIOUS TRAILOR CHASSIS WITH RETRACTABLE WHEELS

摘要

An amphibious trailer structurally consists of a number of boxes which are connected to each other with braces and beams and arranged in such a manner that the trailer chassis plus a specified maximum load are supported by road wheels (2) for towing behind a vehicle. The volume of the trailer chassis is so designed that it can float with its load in water with sufficient freeboard. The front and bottom are suitably shaped to reduce drag. The wheels can be retracted with air springs or airbags (4) into the wheel housings (1) so that the suspension and wheel bearings can be kept out of the water. A motor installed on the trailer can provide propulsion in water.