How It Works: Seat Back Adjuster
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- Опубликовано: 28 авг 2024
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We explain how a manual seat back recliner works and touch on the important engineering considerations when designing your own system.
Presented by Eden CAD - edencad.com
I searched and could not find an easier understanding of the entire lever/recliner and how it works. Thanks. A great thing to post.
This recliner is but one of many designs. This one is a sector gear recliner with a locking pawl. There is the Taumel type rotary gear, German design. Then there is the linear type, which uses one or two cylinders, with plungers. How do I know? I worked at a recliner supplier for automotive seating, ran the life and reliability test lab for several years. I tortured and wore out recliners for many models. Best seat/recliner combination: the basic Recaro. Worst I encountered: the Mitchell bucket, used in circa '90 Suburbans... We called that frame the "lawn chair." Basic performance measurements for recliners: Radial play, recline effort, lift load, handle effort, for basic clocksprung sector types. Rotary wheel effort for Taumel. Static rear, forward torque to failure, and fatigue to rear tests performed. Then there is the life cycle testing, 10,000 cycles minimum is typical. Forward dump tests, also. Then there is the inertia lock forward test, for recliners so equipped. Best rule for design: Keep it simple. We had a recliner that had the dump feature for 2 door, worked great, compare it to one of the high end GM designs... the Cadillac sample we had was ridiculously complicated. They kept adding parts, until it worked. I was Dr. Destructo in that lab. I also designed test machinery that worked the first time I tried them out, unlike certain "engineers" up in the front office. You make it, I will revise a way to break it or wear it out. One last piece of advice: for any pin/v hole wear... Lithium grease. Use on door/hood hinges, etc. Use on latches. I proved it out in the lab.
soco13466 ..Are you still the business? Where are you located?
P272 They closed the plant in the late 90's. I am retired now, am building a container home, my design. Regarding automotive seating, from what I've seen in later years, is that they are improved. I still don't think the Recaro has been outclassed. BTW I made an office chair from a passenger side bucket, out of a small GM suv, has double telescoping cylinders (linear type recliner), mounted on the base of my previous office chair.
P272 Am in South Carolina.
Cool, thanks for replying back. Good luck with the container house. A guy named Tony Hsieh (Zappos) built a container mall on Freemont Street in Las Vegas, check it out. Your office chair sounds bad ass. I'm searching for seat, springs and magnetic engineers for three patent projects im working on. Figured I'd see if you were still in the biz. Cheers and post that house when you get her done.
Do you think this system can be used other than seats ? I have this small project im working on its like a drop down shelf and i want the fancy to be able to set the angle at whatever position and i thought of this haha
Finally i can get the best visualization of this works
i am going to fix my car seat later today. this is so informative.
Excellent video. I am a Licenced mechanic but never worked on a car seat recliner before. This was so much help. Thanks
I’m 16 and have worked on a seat recliner before. Loser.
Great explication. I have a mobility scooter with something like that and the teeth just won’t mesh together. This helped me understand how it works.
Thank you very much.. the seat mechanism went out in my Toyota 4Runner and as this video looks like it was from a Toyota truck of some sort.. it was a total life saver. Thank you.
Ty so much.. without this i woildnt be able to fix my chair
This is useful to tell me to just buy this mechanism than spend money to attempt to make one
Great, now what does one need to have the seat lay all the way flat. And then have the seat lift up to become the back and the former back will be the seat and the chair will be facing the rear?
THIS is the kind of video they should make for vehicle repairs.
mikemclarenf1 This will help on a few designs, but there are many designs out there. You need model specific instructions.
Fast and good product
brilliant video thanks
Nice video. Pretty good explanation too.
I have a problem with my passenger seat, it won't tilt forward,! What is the best thing to do or go to get it fixed?
Great explanation! Why aren't you doing more?
I have a 95 Chevy truck, the passenger seat won't adjust upright it tilts backward, can't sit upright.
I’m trying to convert my tiny Kei car into a camper. The back seats fold completely flat, but I need to fold the front passenger seat completely flat too if I want to lay out comfortably. It unfortunately only folds about 45 degrees.
If I were to remove the stabilizer plate, which appears to be what stops the seat from folding further, would that possibly allow me to fold my seat completely flat?
You ever figure it out?
I need to adapt my seats to do this also. Not pleased with the manufacturer
Great work. Do you have the assembly and individual parts online?
Same thing I'm also need bro r u got any positive response?
Good explanation. Can please make such animation & explanation for driver seat height adjustment?
How do you modify a Ford Ford Ranger passenger seats Oakenfold all the way forward I want to be able to go out the window into my camper shell
Does anyone have a general idea as to where I can get a new radial spring for my seat?
Looking to find out the dif between Atype and A/Btype
I just bought a used car seat and it doesn't lock on a 90 degree angle it only locks on 120 and 2 more beyond that. What do you think is the problem?
Thanks for the great explanation, i am kinda curious on how the same works for airplane seat, which operates via a simple button. Would be great is someone could help.
Sometimes the lever does not go down then I have to recline a bit more for it to go down. Is this normal?
so if the seat is free falling forward and wont stay upright that means the teeth are out of line with the stabilizer plate?
Good explanation
thanks for sharing
What stops the seat reclining all the way?
Mine is stuck an won’t go back or forward
Sit ups suck. Gonna try a fix later today on my dad's explorer. It's not locking into place.
can you show how kitchen chimney works and minimum volume of air to be replaced from a kitchen
What if you can't pull the seat back and it's stuck?
My seats keeps leaning backwards how do i fix this?
my right side steat back rest goes forward when i lift the lever but the whole seat will not slide forward . i have to use the lever under the seat.
Can we modified seat that can fold 45° become full flat?
You ever figure it out?
@@carll373 more to the point have you eventually figured it out ❕
У меня эта спинка сидения вообще не двигается. Единственное что я могла снять это пружинку. Я уже устала возиться с ремонтом этого кресла
I would like to learn how to disassemble and reassemble this. I got a coin stuck between the teeth of the locking mechanism
how would seat back adjuster work on 2001 Ford Focus? something broke and seat would hold in position
My s at don't move forward. why
Is the stabilizer made with metal or plastic?
Very Good!!!
Sir hight aadjstar me koi gear lagta hai ya nhi
Are these CAD files available anywhere?
Ryan Amesbury yes 100$ email me at
786shubhamvishnoi@gmail.com
I Mean It's A Good Video But Some Makes Have The Linear Spring Directly Underneath The Lever. Could You Show The Diagram Of Those, Since Not All Mechanisms Are Made The Way Your Video Shows?
Uuh! Precision Like a Fire gun !!! Anyway Thank You... i was Sleeping in my pluriel C3 saddle No gouing return with lock...
Good. Keep it up
Is the solidworks model available somewhere?
i looking for it too :D
It doesn't work 😞
Help me plzzzz
Helpful graphics
BMW Z3 lever? How does t hat work?
well explained.
18 mar 2020 4:5 pm edt:thanks
Sir which software had you used for designing the model
Plz, reply sir
My lever is stuck
Thanks
I'm in a bus right now, and I feel like an asshole bc my seat is too reclined forward, leaving less leg room for the guy behind me. I'm watching this so I can figure out how to use the damn thing lol.
2004 Buick Lasabore drivers seat back rest moves about 2 inches it any location simple fix?
And to think Vauxhall UK want to charge me to look why my under warranty car has excessive play in numerous driving positions .
my seat adjuster broke in my 98 dodge pickup any ideas on how to fix it
Jacob miner guy Benson What broke? If it is one like in same year Chrysler product, you can have anything from a broken handle spring, which means the seat won't lock in place, or a sheared rivet. Check the lower bracket, upper bracket bolts. Maybe the teeth have been sheared, which can't be repaired.
saw this guy struggling in front of me after switch seats with his girl😂 but i didn’t understand because she lifted it up so easily and i pull up, nothing and so does he when he tried pulling it down🤷🏽♂️ weird
OK!!!
105 people dont have a car
Meme Insider, anyone?