Fastening & Assembly Solutions & Technology July 2012

mount hinge in reinforced polyamide
based technopolymer and a companion
version in die-cast zinc alloy. CFM hinges
offer a variety of fixing methods and a
full 270° opening for situations where it is
useful to fold a door or access hatch fully
out of the way.
There is clearly a wide range of plastic
hinges on the market and often it is necessary
to put a significant weight of
equipment on even small doors. , therefore
the following notes are offered as a
guide to choosing a convenient type and
the correct number of hinges appropriate
to the door being hinged.
Nigel Pritchett, managing director of
Elesa UK has produced a helpful white
paper which will help designers find the
relevant data in the literature and calculate
maximum working load before elastic
deformation sets in. There is also a formula
for calculating load at breakage,
which can then be used for safety verification.
The document is available from
the company’s website
www.elesanow.co.uk.
ELESA 01526 322670
The ubiquitous toggle latch comes
today from EMKA in a multitude of variations
under its 6000 program which
includes many types in stainless steel.
Toggle latches with their associated
catch plates find application in situations
where rapid fixing and release are
required. This is often called for on
packing cases, storage boxes, transit
cases, access panels, cabinet doors,
vehicle onboard storage compartments
and similar.
The range includes simple low cost
wire toggle latches, either without lock
or with padlockable facility; these are
FAST JULY 2012
complimented with spring loaded versions.
Additional functionality is
addressed by a special section of the
program which encompasses latches
with claw links and with compression
facility. Larger types feature integral
adjustment for length of the claw, thus
enabling full pull down to be achieved
over a long period of usage. Catch
plates in both straight pull and 90°
options are available.
A selection of 3D CAD files and
any part or the product catalogue can
be downloaded from www.emka.co.uk.
EMKA 024 7661 6505
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