New to actuators-need help with multi-axes

Hi guys

I’m in the planning phase of designing a moving power recliner and need some help with actuators. I need the chair to be able to move horizontally 2 feet and vertically 1 foot.

I searched around and saw some multi-axes setups but im not clear on how it works.

Is one acutator on top of the other? (the vertical on top of the horizontal?)

Also, If anybody can guide me to any reading material or guides that’ll give me a better picture of what im dealing with, i’d really appreciate it! :slight_smile: Thanks!

If im guessing right, the horizontal movement will be on a rail that is attached to the floor and the vertical actuator will be supported on that rail?

hmmm, let me know if ive got this right.

I would have the recliner base on two guide rails powered by the track actuator at the outside bottom of the base.

The vertical actuator would be attached to the base of the chair in the inside and it would be on two vertical guide rails.

So essentially the chair will be in two parts?

For three actuator setup, do you mean attach two for the horizontal and one for the vertical?

Thanks for your help!!:wink:

Ok, will do!

edit: I actually have been using sketchup. I’m designing a desk that will go along with this chair. Haven’t gotten to the recliner yet, but ill do it now.

Heres a rough approximation of the recliner. I dont have a good idea of total weight yet. Right now it looks too big and I might redesign it so only a smaller part moves but if its feasible, id like the whole thing to move. The second picture are the guide rails. Im not sure if I put them right or where the actuators go.

Other than the horizontal and vertical movements, Ill list what else im planning on having motorized.

  • The armrests, ten inches vertical movement, separate from each other.

  • Back, havent decided till what angle. (45 degrees?)

  • Footrest a full 90 degrees raised.

  • Small LCD screen that raises from the inside of one of the sides.

Ok thanks! I think i’ve got it figured out on how the chair will move vertically. Ill try to sketch it out and post it soon. And ill look into that 4-bar mechanism.

Here it is! I made a frame for the chair which moves horizontal. On the inside of the frame, their would be actuators and guide rails to allow for vertical movement.

I might just scrap the vertical movement for the entire desk and maybe just have a vertical actuator for the seat base but Im interested to know if this design would work. What do you think?

Im guessing my biggest challenge will be balance and support.

We can special order Firgelli Automation track actuators which can support up to 450 pounds. You would still need guide rails (or guides) on either side in case the load in not balanced (it would crack the actuator). For vertical motion, we have actuators which can lift up to 1000 pounds - your issue will be to balance it properly (perhaps use three smaller linear actuators rather than just one?).

You’re essentially creating a motion platform. Suggest drawing up your idea in Google Sketchup (very fast to conceptualize). Post a screenshot here.

This is sounding more and more like a device which a company might use to create a fit a customer before creating a custom recliner. The middle guide rail on the bottom would actually be the track actuator. Not sure I understand where the vertical movement comes in. First figure out how to get the motion you want, and then figure out where / how to attach each actuator. For the LCD screen coming out of the arm rest, consider a 4-bar mechanism.