Document ID: chunk:federal_register_of_legislation:F2012C00357:front:0:p23
Version: federal_register_of_legislation:F2012C00357
Segment Type: other
Provision Reference: 
Character Range: 62947–65755

most unfavourable position(s) chosen by the technical service responsible for testing.  However, if the belt adjustment device for height is constituted by the belt anchorage, as approved in accordance with the provisions of Regulation No. 14, the technical service responsible for testing may, at its discretion, apply the provisions of paragraph 7.7.1. below.

           6.4.1.2.4. In the case of safety-belt with a preloading device the minimum displacement specified in paragraph 6.4.1.3.2. below may be reduced by half.  For the purpose of this test, the preloading device shall be in operation.

           6.4.1.2.5. In the case of a safety-belt with tension-reducing device, it shall be subjected to a durability test with such a device in operation mode according to paragraph 6.2.5.3.5 before a dynamic test.  The dynamic test shall then be conducted with the tension-reducing device in operation mode.

           6.4.1.3. During this test, the following requirements shall be met:

           6.4.1.3.1. No part of the belt assembly or a restraint system affecting the restraint of the occupant shall break and no buckles or locking system or displacement system shall release or unlock; and

           6.4.1.3.2. the forward displacement of the manikin shall be between 80 and 200 mm at pelvic level in the case of lap belts.  In the case of other types of belts, the forward displacement shall be between 80 and 200 mm at pelvic level and between 100 and 300 mm at chest level.  In the case of a harness belt, the minimum displacements specified above may be reduced by half.  These displacements are the displacements in relation to the measurement points shown in Annex 7, figure 6 to this Regulation.

           6.4.1.3.3. In the case of a safety-belt intended to be used in an outboard front seating position protected by an airbag in front of it, the displacement of the chest reference point may exceed that specified in paragraph 6.4.1.3.2. above if its speed at this value does not exceed 24 km/h.

           6.4.1.4. In the case of a restraint system:

           6.4.1.4.1. The movement of the chest reference point may exceed that specified in paragraph 6.4.1.3.2. above if it can be shown either by calculation or a further test that no part of the torso or the head of the manikin used in the dynamic test would have come into contact with any forward rigid part of the vehicle other than the chest with the steering assembly, if the latter meets the requirements of Regulation No. 12 and provided contact does not occur at a speed higher than 24 km/h.  For this assessment the seat shall be considered to be in the position specified in paragraph 7.7.1.5. below.

           6.4.1.4.2. In vehicles where such devices are used, the displacement and locking systems enabling the