Bocklenberg & Motte wedge pin door lock - Benzworld.org

Wolfgang · 04-30-2005, 06:43 PM

Two pics from my M-class, showing the wedge-pin door locks made by Bocklenberg & Motte in Wuppertal Rondorf. They invented this type of lock together with Mercedes-Benz in the 50s after it was found that other types open after a crash, or jam during a crash and can't be opened afterwards.

C-Rod · 04-30-2005, 11:47 PM

Great safety feature, and l think they look great as well....Thanks Wolfgang..as always....

kenyee · 05-01-2005, 02:33 PM

They look like a cast or molded single piece of metal now instead of multiple layers...

ken

Wolfgang · 05-01-2005, 07:18 PM

@Carlos
@ken

now I looked up the relevant patent. The first is one of several for the wedge pin door lock.

The second is for a passenger vehicle with a frame, a precursor for the rigid occupant cell patent lateron.

Amazing what one can find on the Daimler server.

Benz4Dirt&Sky · 05-02-2005, 10:48 AM

Wolfgang-

You have officially LOST IT.

[:D]

It is pretty amazing when you understand the engineering effort and attention to detail that goes into a fine auto, though.

Thanks for the info. It adds to the enjoyment.

I am blown away by the opening/closing of the soft top on our SL.

Wolfgang · 05-02-2005, 11:52 AM

@Dave, incurable I'm afraid. Google for Bela Barenyi if you want to find out about the design philosophy behind your W163 and R129.

mickey.1430 · 05-02-2005, 02:46 PM

The sketch in the patent looks very close to what I rember being on my MY62 220Sb. I went over logging roads in it and never heard a loose door!

Wolfgang · 05-02-2005, 08:26 PM

Quote:

mickey.1430 - 5/2/2005 1:46 PM

The sketch in the patent looks very close to what I rember being on my MY62 220Sb. I went over logging roads in it and never heard a loose door!

@Tom, here's a better picture. As far as I know the 220 was the first vehicle to have them, a classic!