L-shaped 6-bar linkage motion
L-shaped 6-bar linkage motion
(OP)
I'm trying to open an access panel, but the packaging is very tight. I need to move sideways about 2 inches, then upward about 18 inches. The initial motion has to be very horizontal so that tends to rule out 4 bar linkages like on bus luggage doors. Also, I can't go sideways more than 6 inches or I crash into something else. Last but not least, the door can't really rotate much as it travels upward because it would hit yet another obstruction.
At this point I'm likely going to use a linear bearing that pops outward, but that requires quite a bit of trickery to make sure it won't go up before it's completed the outward motion.
Has anyone seen a 6-bar linkage that would do the L-shaped motion that I described?
At this point I'm likely going to use a linear bearing that pops outward, but that requires quite a bit of trickery to make sure it won't go up before it's completed the outward motion.
Has anyone seen a 6-bar linkage that would do the L-shaped motion that I described?





RE: L-shaped 6-bar linkage motion
No,
RE: L-shaped 6-bar linkage motion
Fe (IronX32)
RE: L-shaped 6-bar linkage motion
RE: L-shaped 6-bar linkage motion
RE: L-shaped 6-bar linkage motion
rb1957, we looked at bendy tracks from a supplier (like a garage door), but they're several hundred dollars each.
MotionGirl, I wish I understood what you're talking about because it sounds promising, but you're speaking French to me. I'm not familiar with the terminology you used.
It's crunch time and I have to make a decision, so I'm planning to use a linear bearing with a toggle mechanism. The toggle will kick out the bottom of the linear bearing rod (top one will have to be hinged), then the door will travel upwards assisted by a gas strut. The trick will be to have a catch that prevents the upward motion from beginning until the toggle is fully extended. On the way down the toggle will keep the panel from swinging inward until the linear bearing un-straightens it.
Thanks everyone for your feedback. This was my first time posting and you've been very helpful.
RE: L-shaped 6-bar linkage motion
It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.
RE: L-shaped 6-bar linkage motion