The head impact test serves the manufacturer of steering
wheels, seats, head-rests, instrument panels etc. and
the customers for the proof that the products fulfill
the corresponding regulations of the ECE-R 12. A rigid
examining head is accelerated with a mass of 6.8 kilograms
and a diameter from 165 mm on a speed of at least 24.1
The examining head shall feign the impact of the
human head on the examinee during an accident. Measured
over 3 ms, predefined in terms of as a permitted limiting
value a middle delay of 80 g is. For the production
of the impact velocity the gravitational force is made
use of, i.e. the examining head beats led out of a defined
height linearly on the examinee. This test bed is realized
by means of a 5 m high aluminium profile framework.
In this the examining head which is put together on
one over engine and sledge placing destitute of toothed
belts becomes on the examining height driven and there
fixed by the computer by means of an electromagnet automatically.
The examining head falls virtually friction freely at
the triggering of the examination about a computer order
on the examinee.