Ok, before I go and try to design something from scratch, I thought I'd see if anybody has some idea for this project. What I want to build is a central cable lock point for a construction site. It needs to be able to bolt down into a concrete slab with drill in anchors and accept large diamater wire rop choker ends. I'm thinking of using 1 inch cable for the leads. I hate the idea of having to leave equipment out on a job site, but sometime there just really isn't another way around it unless you want to spend three or four hours a day setting up/tearing down. I've tried other routes and have had stuff stolen. it usually seems to be the lock that they go for, as it is the weakest link in the system. I do realize that if they really, really want stuff then they will get it and nothing will stop a tourch. But, if I can make it a big enough pain, maybe they'll move on to something less secure.
Here's my idea to start with. I'm thinkin of a 1/2 - 3/4 inch plate apprx 12" square. countersinking the bolt holes in the corner and using some sort of special nut that doesn't use a common socket to remove. Also, tapering all of the edges to a 45 deg angle so that there isn't a blunt face to try to pound or pry against with a hammer or bar. For the lock I was considering one of the master lock harden "hockey puck" locks. I don't know their real name, but that's what I call them. They are the ones that are just a solide disk about three inches in diam and about 1.5 inches deep. they simple slide over the locking area and secure a pin through the body of the lock. From the center of the plate, I'm thinking for welding some 3-4in diam heavy walled pipe about 4-5 inches tall. in the center of that bringing a sturdy vertical pin welded to the plate. Along the sides of the pipe, cut slits just big enough to slide the end of the cable through and over the center pin. this way I could stack multiple cables on one locking point and then "cap" the pin with the lock and have it still surrounded by the pipe.
Any thought or suggestions please. Or if somebody has a better plan, feel free to post that as well. I HATE GETTING STUFF STOLEN!!!!! Ok, that feels better!
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Thread: padlock design questions
02-15-2007, 08:36 AM #1
padlock design questions
02-15-2007, 12:44 PM #2
Using your idea I would add a cap to go over the whole top of the pipe with a lock also. This will keep the inside out of the weather as well as give you an extra lock. What kind of equipment are you protecting? Maybe a seabox/ container to lock it all in?
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02-15-2007, 05:21 PM #3
Mainly what I'm going to be locking down would be stuff like a medium sized table saw, air compressor and some similar stuff. I've thought about a sea container and have used those before on some sites to store supplies in and just bring them inside when I need them. The bad part of those for this situation would be the having to move the equipment every morning and evening. Might as well just reload it in the truck or trailer and park it in the driveway (that way they can steal the whole truck and tools!). It's very frustrating to keep moving stuff all the time. If I keep wasting time on that, then the theives have already won, but now it's just my time they are stealing....
Anyway, it's a never ending catch 22 of time vs $.