Document ID: chunk:federal_register_of_legislation:F2017C00972:body:0:p32
Version: federal_register_of_legislation:F2017C00972
Segment Type: other
Provision Reference: 
Character Range: 84190–87472

‑ Appendix 2

 THREE‑DIMENSIONAL REFERENCE SYSTEM

    1. The three‑dimensional reference system is defined by three orthogonal planes established by the vehicle manufacturer (see figure). /

    2. The vehicle measuring attitude is established by positioning the vehicle on the supporting surface such that the co‑ordinates of the fiducial marks correspond to the values indicated by the manufacturer.

    3. The co‑ordinates of the "R" point and the "H" point are established in relation to the fiducial marks defined by the vehicle manufacturer.

Figure - Three-dimensional reference system

Annex 3 ‑ Appendix 3

REFERENCE DATA CONCERNING SEATING POSITIONS

     1. Coding of reference data

      Reference data are listed consecutively for each seating position.  Seating positions are identified by a two‑digit code.  The first digit is an Arabic numeral and designates the row of seats, counting from the front to the rear of the vehicle.  The second digit is a capital letter which designates the location of the seating position in a row, as viewed in the direction of forward motion of the vehicle; the following letters shall be used:

          L = left
          C = centre
          R = right

     2. Description of vehicle measuring attitude

     2.1. Co‑ordinates of fiducial marks
      X ............................
      Y ............................
      Z ............................

3. List of reference data

3.1. Seating position: ......................................

3.1.1. Co‑ordinates of "R" point
 X ...........................
 Y ...........................
 Z ...........................

3.1.2. Design torso angle: ....................................

3.1.3. Specification for seat adjustment /
 horizontal: .......................
 vertical: .........................
 angular: ..........................
 torso angle: ......................

Note:  List reference data for further seating positions under 3.2., 3.3., etc.

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Annex 4

DETERMINATION OF THE HEIGHT AND WIDTH OF HEAD RESTRAINTS

                   Figure 1

Figure 2

Annex 5

Details of lines and measurements taken during tests

   1. Original unloaded position.

   2a. Displaced position by applying to the manikin's back a moment of 373 Nm

      about the R point, defining the position of the displaced reference line r1.

         2b.  Displaced position by applying to the 165 mm sphere a force F producing a moment of 373 Nm about the R point, keeping the displaced reference line r1 in place.

    3.  Position after displacement by the force F increased to 890 N.

    .

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Annex 6

TEST PROCEDURE FOR CHECKING ENERGY DISSIPATION

        1. Installation, test apparatus, recording instruments and procedure

1.1. Setting up

         The seat, as mounted in the vehicle, shall be firmly secured to the test bench with the attachment parts provided by the manufacturer, so as to remain stationary when the impact is applied.

         The seat‑back, if adjustable, shall be locked in the position specified in paragraph 6.1.1. of this Regulation.

         If the seat is fitted with a head restraint, the head restraint shall be mounted on the seat‑back as in the vehicle.  Where the head restraint