Thread: Newbie from NZ
Hybrid View
-
27-03-2020 #1
Something i dont think you have looked at yet is the end of travel can be variable. Think uneven ground, kerbs and even parked on a slope.
I have a hydraulic lift in the back of my van that does similar to your requirement moving a small platform from the rear floor out and down to the ground .
You will need to think carefully because the end point at one end (retracted into the boot) is fixed but the other end of the travel is not fixed.
The most likely is flat ground at the same level as the car verses reversed up to a pavement so 150mm or more higher than the surface the wheels are on.
If you have a fixed limit switch this will cause problems as the unit will keep driving even though its hit the deck.
Sorry to add another complication but hope it helps
-
28-03-2020 #2
Open to ideas
i Just reread your comment above and i think you may be misunderstanding the concept. There is NOTHING below the chair
all the lifting is done by 2 support arms which hook under the chairs main handle grips ( at top of machine )
no plate under it at all
thanks
-
28-03-2020 #3
I get there is no plate on your design but just wanted you to think about what happens if the chair touches down prior to the end of travel.
If the mechanism would continue without damage thats great but if it were to continue down damaging what i presume is an expensive chair not so much.
I couldnt see your sketches to see the interface between the machine and chair so you may well have this covered
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Bookmarks