A lightweight and compact tent-type camping trailer which is easy to set up and collapse and which is especially adapted for towing by motorcycles. The trailer comprises a wheel supported trailer bed and a top member. The top member covers the trailer bed when the trailer is in a towing condition and forms the top to a tent when the trailer is in a set-up condition. A pair of floor defining members for the tent are hinged along upper edges of opposite sides of the trailer bed to extend within the trailer bed when in the towing condition and to swing upwardly and outwardly to generally horizontal positions in the set-up condition for the trailer. Tent material is secured along marginal edges of the top member and along edges of the floor defining members opposite the hinged edges thereof. The width of the tent material as secured between the top member and the floor defining members is slightly greater than the width of the floor defining member whereby the tent material exerts a lifting force on the floor defining members as the top member is raised to automatically swing the floor defining members upwardly and then outwardly from the trailer bed to the set-up condition. Brace members are hinged at each corner of the trailer bed to swing upwardly from within the trailer bed to releasably lock the top member in the set-up condition.
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