Mechanism Design
Mechanism Design
(OP)
What is the mechanism behind car sunglass compartments and cup holder flaps that you press down and they open very smoothly. I want to know:
- What is the latching mechanism and how is it released?
- How does it open on its own and how is it so smooth?
Visuals would help a lot, and if there is a website/thread that explains this outside of the context of car repair, I would really appreciate that.
Thanks!
- What is the latching mechanism and how is it released?
- How does it open on its own and how is it so smooth?
Visuals would help a lot, and if there is a website/thread that explains this outside of the context of car repair, I would really appreciate that.
Thanks!
RE: Mechanism Design
TTFN (ta ta for now)
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RE: Mechanism Design
RE: Mechanism Design
Pretty much all of them will use a dashpot in some configuration so that the door doesn't just fall open.
RE: Mechanism Design
https://www.youtube.com/watch?v=3fN2zFDi2Ck
RE: Mechanism Design
RE: Mechanism Design
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: Mechanism Design
https://www.grainger.com/product/36JN23?gclid=Cj0K...
RE: Mechanism Design
Check out products made by Sugatsune and Southco.
Kyle
RE: Mechanism Design
http://www.nyelubricants.com/damping-grease-sample...
RE: Mechanism Design
Ps: this is a blatant, but relevant ad for magnetic shocks on the new Corvette. You owe me big, Jimmie.
RE: Mechanism Design
www.heilind.com/products/richco/rfrt.pdf
RE: Mechanism Design
RE: Mechanism Design
One drawback is you have to buy a bunch to get a good price.
Another is that when you go back in a year for more, they will have transitioned to a different design, and you won't be able to get the ones that you had before.
Similarly for push/push latches, except that there are some standard types that will continue to be available for a while, from e.g. Southco, but not for a nickel.
I don't know how they make the rotary dampers; the ones I looked at seemed to have a lot of tiny parts inside.
There was for a while a linear damper comprising a rubbery tube of varying wall that slid on a rod and through a hole. It was fairly expensive, and didn't really work very well.
I have seen a homemade linear damper that worked fairly well, comprising two pieces of magnetic tape (not recording tape, but the thick stuff that has permanent magnetic domains in it), one stuck to a stationary plate and one stuck to a planar surface on a plastic part that slid on polished steel rails, arranged so the magnets slid past each other in proximity but never touched. The magnetic attraction caused a nice steady friction force on the rails.
Mike Halloran
Pembroke Pines, FL, USA