Abloy fans - bi-directional disc style lock w/o return bars?

[mh]

Hi,

I'm looking for experts in the design of disc style locks (Abloy and the like) -

do you know of any design, patents, etc. that allow bi-directional use (like in door locks - turning clockwise or counterclockwise, as opposed to cam locks, which unlock only in one direction)

- that do not use "return bars" to scramble the discs before the key is removed again?

Thanks,
mh

[Schuyler]

You should write to Han, he loves to talk about this stuff

[n2oah]

How about the "Norman" lock? I believe it is bi-directional.

[mh]

How about the "Norman" lock? I believe it is bi-directional.

Thanks, I never heard of that. Any hints how I could find out more about it?

Cheers,
mh

[globallockytoo]

Bi-directional like Ford/Jaguar Tibbe locks?

[mh]

Bi-directional like Ford/Jaguar Tibbe locks?

Yes, the Tibbe locks don't have a return bar, and they are bi-directional.
Thanks, that's a good example.

But I'm looking for a lock where the different discs have different cuts along the outside, as in Abloy locks (not different openings, as with Tibbe).

Thanks,
mh

[n2oah]

I honestly don't have a lot of info on them, I just saw one on eBay once and I stumbled upon a schematic. Here's all I can give you:

[mh]

Great, thanks a lot!

Are you sure that's "Norman"? Somehow I think it could have been "Neiman" (from France, now Valeo), but I didn't find much about them, either...

Thanks,
mh

[globallockytoo]

By not incorporating a return bar....and allowing the discs to remain stationary when withdrawing the key, would likely make the cylinder, very low security and super easy to pick/or impression, especially when there are better secure products already on the market. I would think this might prove to be not secure enough to encourage a production run, just a thought.

[n2oah]

Great, thanks a lot!

Are you sure that's "Norman"? Somehow I think it could have been "Neiman" (from France, now Valeo), but I didn't find much about them, either...

Thanks,
mh

Honestly, I can't remember. It was on an eBay auction, and all I can really recall is that it was a brown mortise cylinder that went for a high price.

[Schuyler]

This has both names in it

link-o

[mh]

By not incorporating a return bar....and allowing the discs to remain stationary when withdrawing the key, would likely make the cylinder, very low security and super easy to pick/or impression

Well, of course I mean a system where the discs are returned - just without the use of a return bar...
Some locks do that with control surfaces on the key, like DOM Diamant or that Norman lock shown above,
but I wonder if the Abloy style locks (where the discs are positioned while the key is turned) have been designed w/o return bars.

Thanks,
mh

[n2oah]

This has both names in it

link-o

That doesn't look like it.

[mh]

That "Norman" (or Neiman?) lock would have the key slot on the outer edge of the cylinder. I'm quite sure I've seen that before, just can't remember.


Anyway - any other examples of "true" Abloy-style locks, bi-directional, without return bar?

Thanks a lot for your help,
mh

[TOWCH]

I'm afraid I can't help but I'm kind of curious. What's this for? It's a kinda weird question. Is it a cool project?