Need some help on a lifting mechanism

[Carsten Svendsen]

I don't have much space to use and the servo motor needs to be lifted from the bottom and up totaling 90° radius. The servo needs to be lifted with pneumatics.

I've built this model in SR3D Builder to show you guys. It's not really many pieces so anyone could build it IRL and try to make out something. It should be easily recreateable from the pictures.

I'm pretty clueless and I don't know of that many different mechanical solutions with 4 different liftarms or so, so I'm asking for help in hopes that someone would help me

Edited March 16, 2013 by Carsten Svendsen

[Carsten Svendsen]

If I may add, there's no other obstacles in that area you see on the screenshots, except the fuselage. I don't care how it's going to be tipped, but I'd prefer that the linkage system makes a "lock" so that it's not only the pneumatic cylinder that's holding the wheel up.

EDIT: The lower 2x9 liftarms can be removed, giving an additional 7 studs headroom under the pneumatic pumps

Edited March 16, 2013 by Carsten Svendsen

[Carsten Svendsen]

Update: I found a solution, but it's only halfway done. This next part requires some extraordinary thinking which I'm not capable of. I still think that ZBLJ's linkage is a superior solution, but I can't figure out how to incorporate such a mechanism. Any help would be greatly appreciated.

Attached you'll find an L3B file which can be opened in both SR3D Builder and LDview (perhaps other similar programs). Pretty much every object in that file is final except the bottom most liftarms that's placed inside the frame. These may be changed or rearranged or whatever, you just need to make sure that the vertical liftarm is properly attached afterwards.

Hinge Problem.zip