Document ID: chunk:federal_register_of_legislation:F2006L02312:body:0:p14
Version: federal_register_of_legislation:F2006L02312
Segment Type: other
Provision Reference: 
Character Range: 35296–38134

torso and  thigh of the 3 DH machine installed in the vehicle seat in accordance with paragraph 4 below.  The "H" point is located in the centre of the centreline of the device which is between the "H" point sight buttons on either side of the 3 DH machine.  The "H" point corresponds theoretically to the "R" point (for tolerances see paragraph 3.2.2. below).  Once determined in accordance with the procedure described in paragraph 4, the "H" point is considered fixed in relation to the seat-cushion structure and to move with it when the seat is adjusted;

2.4. "R point" or "seating reference point" means a design  point defined by the vehicle manufacturer for each seating position and established with respect to the three-dimensional reference system;

2.5. "Torso line" means the centreline of the probe of the 3  DH machine with the probe in the fully rearward position;

2.6. "Actual torso angle" means the angle measured between a  vertical line through the "H" point and the torso line using the back angle quadrant on the 3 DH machine.  The actual torso angle corresponds theoretically to the design torso angle (for tolerances see paragraph 3.2.2. below);

2.7. "Design torso angle" means the angle measured between a  vertical line through the "R" point and the torso line in a position which corresponds to the design position of the seat-back established by the vehicle manufacturer;

2.8. "Centreplane of occupant" (C/LO) means the median plane  of the 3 DH machine positioned in each designated seating position; it is represented by the co-ordinate of the "H" point on the "Y" axis.  For individual seats, the centreplane of the seat coincides with the centreplane of the occupant.  For other seats, the centreplane of the occupant is specified by the manufacturer;

2.9. "Three-dimensional reference system" means a system as  described in appendix 2 to this annex;

2.10. "Fiducial marks" are physical points (holes, surfaces,  marks or indentations) on the vehicle body as defined by the manufacturer;

2.11. "Vehicle measuring attitude" means the position of the  vehicle as defined by the coordinates of fiducial marks in the three-dimensional reference system.

3. REQUIREMENTS

3.1. Data presentation

 For each seating position where reference data are required in order to demonstrate compliance with the provisions of the present Regulation, all or an appropriate selection of the following data shall be presented in the form indicated in appendix 3 to this annex:

3.1.1. the co-ordinates of the "R" point relative to the  three-dimensional reference system;

3.1.2. the design torso angle;

3.1.3. all indications necessary to adjust the seat (if it is  adjustable) to the measuring position set out in paragraph 4.3 below;

3.2. Relationship between measured data and design  specifications

3.2.1. The