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Seat-Belt Locking Device Test


The customer requested a system to measure the force required to release the locking mechanism of a car seat-belt whilst it is under tension. The test is carried out to ensure the seat-belt can be released easily by a passenger after an accident. The force measuring instruments must be versatile and easy to fit into a customised test rig designed by the customer.


Two separate force gauges were supplied for integration into a mechanical test rig. The 1000 N Micro-processor Force Gauge was connected to a motor drive assembly which served to pre-tension the seat-belt to a specified limit. A lever-mechanism was attached to the 250 N force gauge and used to mesaure the compression force required to activate the locking device. The peak force was then recorded on the display and noted by the operator.


  • 1000 N and 250 N MFG (superseded by the AFG)

The input of development ideas and suggestions were also a key part of the service to this customer.

Supplied to

Autolov Kle, Spain

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A Brand You Can Trust

"The MultiTest 0.5-i is a very good and reliable machine and the Emperor™ Software brings great advantages. It’s a very useful tool for these kinds of tests. It’s fully programmable and offers an in-depth analysis of results. It’s a precious tool for everybody involved, especially those who work with plastics and their mechanical performance"

Nikos Michopoulos, Quality Control, Eurofilm Mantzaris S.A.


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