Document ID: chunk:federal_register_of_legislation:F2006L01454:body:0:p11
Version: federal_register_of_legislation:F2006L01454
Segment Type: other
Provision Reference: 
Character Range: 32458–35888

deflection of the sternum relative to the spine.

9.4.2.                              The criterion is measured in accordance with clause 7.6.4, expressed in mm.

10.                                      SEAT BACK AND SEAT RESTRAINING DEVICE STRENGTH

10.1.                                Requirements

10.1.1.                          A 530 Nm moment about the 'Seating Reference Point' for each occupant position for which the 'Seat' is designed must be applied to the upper cross member in a 'Rearward' longitudinal direction, unless it is demonstrated that 'Seat' assemblies such as rear 'Seat' backs are supported by a vehicle body member capable of withstanding the nominated force.

10.2.                                Testing

10.2.1.                          Testing to ensure 'Seat' backs meet the 530 N.m requirement must be undertaken by:

10.2.1.1.                    a force applied horizontally; or

10.2.1.2.                    a force applied normal to the 'Seat' back; or

10.2.1.3.                    a force applied longitudinally and 'Rearward' to the upper part of the 'Seat' back frame through a component simulating the back of a   'Manikin'.

10.2.2.                          If deflection of the 'Seat' back causes the moment arm to change, the force should be adjusted to ensure that the moment value of 530 Nm is achieved.

10.2.3.                          Except as provided in clause 10.2.4, hinged 'Seats' or 'Seat' backs must be equipped with a self-locking device for restraining the hinged 'Seat' or 'Seat' back and a release control for releasing that restraining device to preclude the possibility of impact forces acting on unrestrained hinged 'Seats' or 'Seat' backs.

10.2.4.                          The requirements set out in clause 10.2.3 do not apply to a 'Seat' having a back that is adjustable only for the comfort of its occupants.

10.2.5.                          If non-self-locking auxiliary latches are provided they must be unlatched during all testing so that only the restraining device and hinges are taking the test forces.

10.2.6.                          Where 'Seats' are mounted on hinged covers, e.g. engine covers, and the 'Seat' assembly can withstand the test forces without tilting of the hinged cover and without any latches being latched, then the latches need not be self-locking.

11.                                      ANCHORAGES AND SASH GUIDES

11.1.                                Provision and Location

11.1.1.                          A 'Sash Guide' must be provided for each seating position to be fitted with a 'Lap-Sash Belt'.

11.1.2.                          The location of seatbelt 'Anchorages' must be 7such that the locations of their appropriate 'Anchor Points' and 'Sash Guides' meet the requirements of this section.

11.2.                                 'Sash Guide' Requirements - General

11.2.1.                          The 'Sash Guide' must be nominated by the vehicle 'Manufacturer' as being either a component of a 'Seatbelt Assembly' or not a component of a 'Seatbelt Assembly'.

11.2.2.                          The 'Sash Guides' nominated by 'Manufacturers' as not a component of the 'Seatbelt' Assembly'  must include those 'Sash Guides' which are not intended to be replaced when the 'Seatbelt Assembly' is replaced.

11.2.3.                          For the purpose of this Rule, a load-bearing 'Sash