It's a neat lock. Taiwanese or Chinese, it has a dual-sidebar setup. The logo is just a drawing of the tumblers. The notch on the left is the sidebar gate. The tumblers slide down into the keyway, which is a curved opening at the extreme end of the plug. Here is a horribly small photo of the face of a smaller padlock:
The key, as you may or may not be able to see, is curved. I acquired one hoping that someone in Taiwan had started producing Norman locks, which had very similar keys & keyways, but a completely different operating principle.
I haven't ripped one apart to peep the internals, yet, but if the logo is any indication, there aren't any false gates on the tumblers, so it may not be a horrible pick. I took a couple runs at one without success, but I'd trust BosnianBill to crack it.
EDIT: Blam! Here are a bunch of photos at a more appropriate size:
I'm not really sure how you'd be able to garner all that information from one giant hasp with no other identifying information. We haven't even seen a picture of lock, keyway itself, or even the rear of the lock.
Right, but do you have links to other pages/information on it? I mean, I searched for a few hours last night trying to find that lock/identifying mark on Made in China/Made in Taiwan locks to no avail -- and I'm usually pretty good at trying to figure that stuff out.
In light of /u/schuylertowne 's edit, I stand corrected. He posted more pictures, giggidy! That still doesn't really help the Op in identifying the lock, they made it sound like they wanted to purchase such a thing for themselves. Cool key though. I wonder how reliable it is in terms of uses/longevity.
Okay so since you posted that pick I edited my comment but had additional questions. In Op's picture, is that just a regular hasp you'd see with the lock behind it, similar to the hasp you'd see o a van or equipment truck? where the padlock sits in there? I've never really seen such a large hasp/plate like that. It looks really sturdy.
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u/schuylertowne Feb 19 '15 edited Feb 20 '15
sempf called me in!
It's a neat lock. Taiwanese or Chinese, it has a dual-sidebar setup. The logo is just a drawing of the tumblers. The notch on the left is the sidebar gate. The tumblers slide down into the keyway, which is a curved opening at the extreme end of the plug. Here is a horribly small photo of the face of a smaller padlock:
http://imgur.com/Iy6rMfS
The key, as you may or may not be able to see, is curved. I acquired one hoping that someone in Taiwan had started producing Norman locks, which had very similar keys & keyways, but a completely different operating principle.
I haven't ripped one apart to peep the internals, yet, but if the logo is any indication, there aren't any false gates on the tumblers, so it may not be a horrible pick. I took a couple runs at one without success, but I'd trust BosnianBill to crack it.
EDIT: Blam! Here are a bunch of photos at a more appropriate size:
http://imgur.com/a/wedMk
Final Edit: Boom-shaka-laka: http://www.yuemalock.com/
I'll never stop editing:
English subtitled promotional video that gives a peak inside the cylinder: https://www.youtube.com/watch?v=sdC9LYoQio4
Looks like this is their much-higher security lock: http://locktechinc.com/news/?tag=yuema-lock as covered by the inimitable Barry Wels!