happijac lift bed ALTERNATIVE

12t1 wrote:
Thanks for the replies.

I believe the track and trolley have the load specs to hold a bed. I'm estimating 2 people + regular queen mattress + well designed light steel frame with ply wood inserts not more than 600 total = 150 max per corner

I know both parts are designed to face down and not vertical and I agree this might bind if the platform was lifted as a whole from all 4 corners at the same time…BUT…what about no motorized lift…if the bed will be lifted and lowered by each corner by pulling a pin in and out and maybe moving it 3-4 holes at a time then go to the next corner??? So you go around the bed moving is slowly.

The trolley has a flat edge on the bottom that would take most of the load off the wheels. I also would weld tabs against the trolley plate with oval shaped cutouts for pins that match the way happijac has them since the trailer moves so much and might not always be square.

I believe the load will be mostly on the bottom edge of the trolley and against the cross pin…so do you think the track holes with cross pin are good for 150lbs downward? I do know there is some lateral load on the trolley wheels in this design hence the likely binding and this lateral load might be increased temporarily with movement on the bed but I still do not think that exceeds the load potential of the front opening walls of the track to keep the trolley wheels inside.

So if the bed can lateral shift and inch or across, I don’t see why I can lift it a bit and move it that way all the time keeping it very secure pinned in the track bottom and top of the cross rails.

We would of course remove the wall coverings and add in some steel backing to mount this too.

What do you think?