Document ID: chunk:federal_register_of_legislation:F2024L01742:body:0:p19
Version: federal_register_of_legislation:F2024L01742
Segment Type: other
Provision Reference: 
Character Range: 56476–59745

consists of more than one seating position, the forces corresponding to each seating position must be applied simultaneously and there must be as many upper and lower forms as seating positions.

     7.                               The initial position of each seating position of each of the forms must be determined by bringing the test devices into contact with the 'Seat' with a force equal to at least 20 N.

     8.                               The forces indicated in clauses 2.3.1 and 2.3.4 of this Appendix must be applied as rapidly as possible and must be maintained together at the specified value, whatever the deformation, for at least 0.2 seconds.

 2.                                     Body Block Loads

     1.                               Loads must be transmitted by the use of two body blocks per 'Seat'.

     2.                               Each body block must be restrained by attachments which are representative of a seatbelt passing around the body block and connected to the 'Anchorages' under test by fittings that are representative of the actual 'Anchor Fittings' designed for each 'Anchorage.'

     3.                               The body blocks must apply a total force of 17.7 kN to the upper torso body block and 8.9 kN to the lap body block.

     4.                               In cases where one 'Anchorage' is a 'Final Torso Anchorage', the attachment restraining the body block must pass through the 'Sash Guide' system in all cases other than those specified in the following clauses.

     5.                               An attachment restraining the body block may by-pass any 'Sash Guide' which is not a load bearing 'Sash Guide'.

     6.                               A load bearing 'Sash Guide' which is a component of a 'Seatbelt Assembly' (as nominated in clause 11.2.1) may be replaced by a representative component of sufficient strength to withstand the force requirements of clause 2.4.3 of this Appendix.

 3.                                     Direction of Loading

     1.                               In the case of front and rear-facing 'Seats', the direction of load to the body blocks must be:

     2.                               'Forward' of the seating position; and

     3.                               parallel to the 'Seating Reference Plane'; and

     4.                               In the case of pelvic restraint, the direction of load must be at an angle above the horizontal of not less than 0 nor more than 20 degrees; and

     5.                               In the case of upper torso restraint, the direction of load must be at an angle above the horizontal of not less than 0 nor more than 20 degrees.

 4.                                     'Seat' Load

     1.                               A test load at least equal to 20 times the weight of the 'Seat' must be applied by:

         1.                         adding this load to the lap body block load as specified in clause 2.4.3 of this Appendix; or

         2.                         applying this load in a forward horizontal direction through the centre of gravity of the 'Seat'.

     2.                               For rear facing 'Seats' distributed load must be applied over the