Does anyone know what this may be for (on my camper trailer)

Could be a removable stone deflector mesh, frame dropped in there? Cheers.

Looks like a spare wheel or second spare wheel carrier. The bolt on the centre post might go thru one of the wheel nut holes and the flat bit on top of it might locate the wheel centre. The whole tyre would then sit on the "A" frame.
Do I get a prize if I'm right?
GerryG.

My guess would be some sort of stone deflector set-up incorporating shade cloth or similar.

Just looking at the pic......I hope the weight of the spare tyre will be borne by the A frame. If there is ANY weight being carried by that main upright, I would be adding a gusset between the upright and the cross member. As it stands now, there would be substantial stress on that weld if there is weight on the joint.

Just an observation..... not a criticism.

Roachie

When u have your camper set up does it have a window opening looking out over the tool box ? If so could these 2 uprights be for shortish poles to be inserted to hold open the canvas window flap ?

Bracket for holding a dog kennel ??????

Really, without asking the previous owner, it could be for anything and we are all only guessing ?