[Shop-talk] power hatch opener/closers

[Pat Horne]

All actuators I’ve seen have been screw & nut but I suppose there could be some kind of override to allow it to be opened or closed manually in an emergency. I’ll have to look into that one. 

You say it’s internet. In what way?

Peace,
Pat

Pat Horne 
We support Habitat for Humanity


On Jul 30, 2021, at 10:42 PM, John T. Blair <jblair1948 at cox.net> wrote:

 
Gang,

You all were so great at my last question, I've got another one for you.

Anyone know how these power hatch opener & closers work?  A neighbor said she
went to pick something up and told the person putting it in the back of her SUV
NOT to close the hatch, she'd get it.  But the person grabbed the hatch and pulled
it down.  Ever since it has been intermittant.

I went looking for any info I could find on how they work and I couldn't find 
anything.  I was thinking there were linear actuactors.  But if that were the case
I don't think they should have been able to close the hatch manually.  I though
a linear actuactor was basically a long bolt (all thread) attached to a motor with a
nut that was attached to the item you wanted to more.  If that's the case, then
you shouldn't be able to force the hatch closed as the nut would not slide on the 
rod and the rod wouldn't turn to let the nut slide down.

So what's in those tubes?  From what I can tell, one is an assist strut (I'm 
assuming gas filled) and the other is the actual lifting/closing unit.

John



 	
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