AS/NZS 2088:2000 pdf – Prams and strollers—Safety requirements

AS/NZS 2088:2000 pdf – Prams and strollers—Safety requirements.
This Appendix sets out a method of testing a vehicle for hazardous sharp edges.
A specified self-adhesive tape is attached to a specified mandrel which is then rolled along the edge being tested. The tape is then examined ftr the length of cut.
The following apparatus is required:
(a) A mandrel made of steel having a test surface with a roughness not greater than grade number N5 when compared with the comparison specimens specified in AS 2382 and a hardness of 40 or more when measured on the Rockwell C scale in accordance with AS 1815. The mandrel shall have a diameter of 9.35 ±0.12 mm and be of suitable length.
(b) A pressure-sensitive polycirafluorocthylenc (PTFE) high temperature electrical insulation tapet as specified in MIL-l-23594C. The thickness of the polytetrafluoroethylene shall be between 0.066 mm and 0.090 mm. The adhesive shall he pressure-sensitive silicone polymer with a nominal thickness of 0.08 mm. The width of the tape shall be not less than 6 mm. The temperature of the tape shall be maintained at 23 ±2°C during the test.
The procedure shall be as follows:
(a) Identify any surface on the vehicle which may present a sharp edge.
(b) Wrap the mandrel with one layer of the tes tape so that the circumference and the width of the tape provides sufficient area for performing the test.
(c) Place the taped mandrel so that its axis is at 90 ±5 degrees to the line of a straight edge. or 90 ±5 degrees to a tangent at the test point of a curved edge. and the tape is in contact with the edge when the mandrel is rotated. Vary the angle of the test edge so that the worst case’ situation is presented (see Figure GI).
(d) Apply a force not greater than 6 N to the mandrel and roll the mandrel 360 degrees about its axis along the edge, ensuring that no relative motion occurs heiwecii the mandrel and the edge during the rotation of the mandrel.
The rotation of the mandrel is to have a smooth start and stop and a constant tangential velocity of 25 ±2 mmls during the centre 75% of its rotation.
This Appendix sets out a method of determining the security of each wheel of a vehicle.02PRINCIPLE
A grappling device，with a measuring device attached，is applied to each wheel of thevehicle. The wheels are subjected to a specified axial tensile force.Each wheel and anywheel-locking device are then examined for signs of damage.
03APPARATUS
The following apparatus is required:
A gear puller or similar device which can be adjusted to fit the diameter of different sizewheels，attached to a device capable of applying and measuring a tensile force of 200 ±10 N(e.g. a spring balance).
04PROCEDURE
The procedure shall be as follows:
(a)Secure the vehicle.
(b)By applying a tensile force of 200 N uniformly，attempt to remove each wheel in the
same direction as the axle for 2 min and then release the force.
(c)Repeat Step (b) on each wheel of the vehicle.
(d)Inspect each wheel and wheel-locking device for signs of structural failure.