AS NZS 3629.1:2010 – Methods of testing child restraints Method 1: Dynamic testing
AS NZS 3629.1:2010 – Methods of testing child restraints Method 1: Dynamic testing.
(iii) Use the seatbelt anchorage locations as shown in Figure 1. (iv) Use the upper anchorage point as shown in Figure 1.
The procedure shall be as follows:
(a) After setting up with the appropriate test orientation, calibrate the test rig as specified in Appendix A including camera mounts and other fixtures, if required.
Remove the balast mass from the sled.
(c) Install the child restraint system on the test seat with the test seat in the position for the required mode of testing.
For testing in the inverted mode, the orientation of the child restraint shall be as shown in Figure 5.
(d) Place the child restraint onto the test seat and attach the seatbelt and tipper anchorage strap according to the instructions provided by the manufacturer. Additional requirements are as follows:
(i) Where the child restraint is attached to the test rig using a lap sash belt, the seatbelt shall be attached at the points shown in Figure 1.
(ii) The upper anchorage fitting shall be installed vith all spacers supplied, and with the orientation of the upper anchorage fittings as shown in Figure 4.
(iii) The upper anchorage shall be connected at point Al for frontal testing and at point A3 for side impact testing, as shown in Figure 1.
(iv) Any adjustment used to retain the child seat onto the test seat, shall be adjusted to remove slack, by applying a force of 60 to 80 N to the free-end of the webbing.
(e) Remove the slack from the upper anchorage strap and where applicable, the seatbelt assembly.
NOTE: For Type Al, A2. and Type D, connect or tighten the upper anchorage strap in accordance with the manufacturer’s instruction.
(1) Place the appropriate test dummy as specified in AS/NZS 1 754 in the child restraint and insert the appropriate spacer between the back of the dummy and the child restraint.
(g) Restrain the test dummy and adjust the harness in accordance with the manufacturer’s instructions.
(h) Remove the spacer without repositioning of adjuster/s and mark the non-load bearing webbing to enable adjuster slips to the measured.
(i) In frontal testing on Type Al, Type A2 and Type D devices carried out on impact test rigs, restrain the dummy’s head with the break-away retention system (7(j)).
(j) For sideways testing using the door structure, use a movement minimization system (7(n)) to minimize the sideways movement of child restraint and test dummy.
(k) For frontal tests on Type Al, Type A2, Type A3 and Type D child restraints, attach the sheet of paper (7(p)) to the top of the front face of the seat back so that it is centred laterally across the seat back.
(I) Set the test rig to the settings established during calibration of the test rig for the selected mode. i.e. frontal, sideways, rearwards or inverted (see Appendix A).
(rn) If required, ensure that the camera/s is set-up to capture the kinematics of the child restraint and the test dummy, and to provide evidence of any interaction, which occurs between the child restraint hardware, the test dummy, the test seat and/or the spacing of the head from the door structure etc.
(n) As required, apply paint to the head of the test dummy with an indicator solution sufficient to enable the determination of head contact.
(i) For frontal tests on Type Al, Type A2, Type A3 and Type D child restraints, apply sufficient indicator solution to the head of the test dummy to enable the determination of head contact.
(ii) For sideways testing involving the door structure, apply sufficient indicator solution to the head of the test dummy to enable the determination of head contact.
(o) In rearward testing of Type B, Type E and Type F restraints, the apparatus specified in Clause 7(q) shall be used to measure the maximum angle of rearward rotation of the head from motion analysis of the high speed images of the test.
(p) Operate the test rig.
(q) Check the system for separation of any load-carrying parts, or fragmentation of any rigid components.
(r) In frontal testing on Type B child restraints—
(i) where there is a crotch strap, by observation of the pressure-sensitive paper, determine whether there was any contact of the harness or straps with the genital region of the dummy; and
(ii) where a P6 dummy is used and where a buckle is used as a quick-release device, measure the force required to release the quick-release device while applying a force of 200 N through self-adjusting slings around each ankle and wrist of the test dummy as shown in Figure 2. The line of action of the force shall be in the plane through the vertical centre-line of the buckle housing and within the shaded area shown in Figure 2.