Document ID: chunk:federal_register_of_legislation:F2006L01454:body:0:p20
Version: federal_register_of_legislation:F2006L01454
Segment Type: other
Provision Reference: 
Character Range: 58704–62018

In the case of a 'Seat' which is designed to be fitted in several types of vehicle, the impact zone must be determined with the 'Seats' installed at 750 mm pitch.

                      3.                      Where this is done, the resultant impact zone will be deemed adequate for the other types of vehicles.

                  3.                            The requirements of clause 2 of this Appendix must be considered to be satisfied in the case of 'Head Restraints' that either are part of a vehicle type approved under ECE Regulation No. 17(03) or are approved under ECE Regulation No. 25(02).

          2. OTHER FITTINGS

              1.                                  The requirements of clause 2 of this Appendix apply to such fittings within the head impact zone not mentioned in previous clauses as, according to their location, are capable of being contacted by the occupants in accordance with the procedure prescribed in clause 1 of this Appendix.

              2.                                  If the contactable members of such fittings are made of material of less than 50 Shore A hardness but are mounted on a rigid support, the requirements apply only to the rigid support.

          3. TEST PREPARATION

              1.                                  Setting up

                  1.                            A component made of energy-dissipating material must be mounted and tested on the structural supporting member on which it is to be installed on the vehicle.

                  2.                            The test must be carried out:

                      1.                      directly on the vehicle body; or

                      2.                      the component may be mounted on a fitting simulating installation on the vehicle.

                  3.                            Where a test is carried out directly on the vehicle body the structural member or the vehicle body must be firmly attached to the test bench so that it does not move under impact.

                  4.                            Where the component is mounted on a fitting simulating installation on the vehicle, the assembly comprising the component and the fitting must have the same geometrical arrangement as, and a degree of rigidity not lower and an energy-dissipating capacity not higher than those of, the real assembly comprising the component and the structural supporting member.

              2.                                  Test Apparatus

                  1.                            The test apparatus is to consist of a pendulum where the pivot is supported by ball-bearings and with a reduced mass MR of 6.8 kg at its centre of percussion.

                      1.                      The relationship of MR of the pendulum to the total mass "m" of the pendulum at a distance "a" between the centre of the percussion and the axis of rotation and a distance "L" between the centre of gravity and the axis of the rotation is given by the formula:

                  2.                            The lower extremity of the pendulum is to consist of a rigid headform 165 mm in diameter whose centre is identical with the centre of percussion of the pendulum.

                  3.                            The headform must be