Document ID: chunk:federal_register_of_legislation:F2006L01454:body:0:p16
Version: federal_register_of_legislation:F2006L01454
Segment Type: other
Provision Reference: 
Character Range: 46741–50243

'Torso Reference Line'.

12.3.2.                          The effective cushion width is determined by an analysis of 'Seat', 'Seat' back and vehicle structure sections on the transverse plane:

12.3.2.1.                    if a cushion is separated from another cushion by less than 100 mm the two cushions must be regarded as continuous; and

12.3.2.2.                    if an end of the cushion is separated from adjoining structure by less than 100 mm it must be regarded as extending to the adjoining structure.

12.3.3.                          Should the cushion widths determined by clause 12.3.2 exceed the internal width of the vehicle measured through a point located 562 mm from the 'Seating Reference Point' when measured along the 'Torso Reference Line', then the effective cushion width is the internal width of the vehicle determined at this height.

APPENDIX 1
STATIC TEST PROCEDURE FOR OCCUPANT PROTECTION IN
BUSES

          1. TEST PROCEDURES FOR SEATS AND ANCHORAGES

              1.                                  Preparation of 'Seats' to be Tested

                  1.                            The 'Seat(s)' to be tested must be mounted:

                      1.                      on a testing platform representative of the body of a vehicle; or

                      2.                      on a rigid testing platform.

                  2.                            The seat-anchorage on the testing platform provided for the test 'Seat(s)' must be identical to, or have the same characteristics as, that used in vehicle(s) in which the 'Seat' is intended to be used.

                  3.                            The 'Seat(s)' to be tested must be complete with all upholstery and accessories.

                  4.                            If the 'Seat' is fitted with a table, the table must be in the stowed position.

                  5.                            If adjustable laterally, the 'Seat' must be positioned for maximum extension.

                  6.                            If adjustable, the 'Seat' back must be adjusted to the most upright position.

                  7.                            If the 'Seat' back is equipped with a 'Head Restraint' adjustable for height, it must be in its lowest position.

          1. STATIC TESTS

              1.                                  Application of Test Loads

                  1.                            Test load requirements must be applied simultaneously:

                      1.                      for forward facing 'Seats' the forces as per  clauses 2.3, 2.4 and 2.6 of this Appendix; and

                      2.                      For 'Seat Types' designed not to have a 'Seat' installed within strikeable distance behind them (as determined by  clause 1 of Appendix 2) the loads as per clauses 2.4 and 2.6 of this Appendix; and

                      3.                      For rearward facing 'Seats' the loads as per clause 2.6.2 of this Appendix only needs to be applied.

              2.                                  'Seat' Back Loads - Test Apparatus

                  1.                            The test apparatus consists of cylindrical surfaces with a radius of curvature equal to 82 + 3 mm and a width

2.2.2.1 at least equal to the width of the 'Seat' back of each seating position of the 'Seat' to be tested for the upper form; and

2.2.2.2  be from 320 to 330 mm for the lower form as shown in Figure