Helmet Retention System  tester /testing machine for ECE R22.05 ,EN1078 IS4151 testing

Standard

It's conform ECE R22.05,EN1078,IS 4151 etc testing standard 

Purpose

It's used from helmet strap retention strength testing 

The Main Technical Specifications

The Main  Components

Testing Procedure

1.In this position the helmet shall be held by the shell at a point traversed by the vertical axis passing through the centre of gravity of the headform . the headform is equipped with a load-bearing device aligned with the vertical axis passing through the centre of gravity of the headform and with a device to measure the vertical displacment of the point of application of the force 

2.A guide and arrest device for a falling mass shall then be attached below the headform . the mass of the headform so equipped in this way shall be 15k, this produces the preloading on the retention system for determining the position from which the vertical displacement of the point of application of the force shall be measured 

3.The falling mass of 10±0.1kg shall then be released and shall drop in a guided free fall from a height of 750mm±5mm