The ERA Codemaster is a mechanical door lock providing
key-less access control.
The design incorporate tough glass reinforced Nylon parts
to replace the more brittle zinc die castings traditionally
used in locks of this type.
The focus of the design ensured that changing the code
could be done easily without needing fiddly tools.
Simply unfastening one screw from the inside allows the
outer cover to be removed and the combination chaged.
A unique semi sequential first key code mechanism was
developed to increase code security by an order of
magnitude.
The main lock contains 83 components.
During the development of this mechanism many
prototypes were made and tested.
In addition to dealing
with many moving
parts on several axis
and planes, the
design needed to
consider-:
•
wear issues,
•
vandal proofing,
•
weatherproofing,
•
fire resistance,
and of course the lock
mechanism itself
needed to be ‘pick
proof’.
Mechanical Combination Lock
Steve is the named as the inventor on the Patent for this
revolutionary lock mechanism, he conceived and designed the
complete working mechanism as a freelance designer for the
London based Hothouse back in 1990’s.
“Looking back it’s incredible to think that I completed all the
mechanical design using only 2d Cad, including final part
specification by traditional toleranced drawings, things have
certainly come along way since then”
The lock has been sold now for over 20 years!
