Re: Safe Room Door Lock

["Chub" <w@xxxxx>]

Frank, you might have to add this one to your classic Doug L post for future
reference.

"Bob Worthy" <securinc@xxxxxxxxxxxxx> wrote in message
news:PFuGf.860$Ly6.700@xxxxxxxxxxxxxxxxxxxxxxxxx
>
> "Robert L Bass" wrote in message
>
>> > I doubt though that a screwdriver could pry opened (towards you) a
>> > 600lb
> mag
>> > lock...I've tried blasting against one that opened away and couldn't do
> it
>> > with my massive super strength :-)
>>
>> I forced a 600-lb lock open with my shoulder once and I'm only of
>> average strength -- not exactly a weight lifter.
>
> I think everyone here has already made that assumption
>
>> If there's a wall or
>> other rigid, parallel structure nearby, a strong man could open
>> the door using leg pressure.
>
> Not when the door swings outward. Please read and understand the OP post
> before you grace us with your vast knowledge.
>
> >It's surprising the amount of
>> pressure even an average adult can deliver in a leg press.
>
> This coming from not exactly a weight lifter by his own admission.
>
>> Consider the leverage of a 12" long screwdriver with 1/2"
>
> You sure like that fraction. Didn't we hear the same thing about a drill
> bit
> just recently.
>
>> inserted into the space between the door and the frame.  There's
>> a 23/1  mechanical advantage.
>
> The force would be downward, not outward, with only a 1/2" insertion on 1
> 3/4" door. The best the perp could expect is to take a chunk out of the
> door
> and only if the shank of the screwdriver didn't bend upward first.
>
>> The thief only has to apply about
>> 30-35 lbs of force.  Note: If it were linear motion the figure
>> would be just over 26 pounds, but the screwdriver is describing a
>> circular arc so the required force in a tangential direction
>> increases somewhat.
>
> Have to break out the old slide rule for that line of BS there, Robert?
>>
>> If the door opens away from the lock it's even easier
>
> Have you ever seen a door open into the lock? BAHAHAHAHAHA....Do you know
> how to spell Door Stop?? Stop Robert...I can't take it any more...I am LOL
> until my side hurts. Why don't you drop the 4 online stores and do Stand
> Up?
> I don't think people would pay but you are hilarious.
>
> -- take a
>> run and hit it with your shoulder.  I weigh just over 200 pounds.
>
> BAHAHAHAHAHA....just?......just?
>
>> At a 15 mph sprint that's more than enough force to pop a 600-lb
>> lock.
>
> Lets think about this for kicks and giggles. A safe room is probably...
> what
> 6'X8'? Maybe 8'X10'? and you want someone to get to a 15mph sprint in that
> distance. Riiiightttt! And why should they do this? To get out? Remember
> the
> door swings out. All they have to do is hit the rex button. Why take a
> chance on injuring their shoulder? Next, a perp could take a 15mph run,
> which is questionable inside any structure, at it and if the door is
> installed properly, with or without a mag of any size most likely will
> bounce off the door and land on his ass. Why, because, again Robert, the
> door swings outward.
> Your propensity to quickly jump in and cast your opinions vastly
> outweights
> your understanding of what you read. Your so easy, but keep it coming, if
> for nothing more than kicks and giggles.
>
> With a 1200 pound lock it would be significantly harder to
>> pop.
>
> Astute observation
>
>> If you use an 1800 pound lock the required force would
>> destroy the door before the magnet would give way.
>
> Brilliant
>
>>Most folks
>> will part with a few extra dollars if they can see a significant
>> advantage in the hardware.
>
> As presented by RLB.
>
>
>