Frame for trailer tent that opens automatically - has pairs of telescopic poles with interior springs, and apex angle set by cross brace and external spring

摘要

The frame for a trailer tent is fixed to the trailer and can be erected or folded into the trailer without the use of separate elements. The upper poles are telescopic and are hinged together in pairs at one extremity. Each pair has an internal spring which compresses or compensates according to its position. They are joined together by an external spring and a bar which fixes the angle of the top of the poles. The frame is joined to the trailer by one arm of some hinges fixed to the sides of the trailer.