Document ID: chunk:federal_register_of_legislation:F2006L02312:body:0:p12
Version: federal_register_of_legislation:F2006L02312
Segment Type: other
Provision Reference: 
Character Range: 30307–33004

20 N.

3.2.6. The forces indicated in paragraph 3.2.1. and 3.2.2.  shall be applied as rapidly as possible and shall be maintained together at the specified value, whatever the deformation, for at least 0.2 seconds.

3.2.7. If the test has been carried out with one or more forces  but not with all the forces greater than those specified in paragraphs 3.2.1. and 3.2.2. and if the seat complies with the requirements, the test shall be considered to be satisfied.

Figure 1

Figure 2

 Annex 5

 TEST PROCEDURE FOR THE ANCHORAGES OF A VEHICLE IN APPLICATION OF PARAGRAPH 6.1.1.

1. TEST APPARATUS

1.1. A rigid structure sufficiently representative of the  pedestal of the seat is fixed by the means of fixation (bolts, screws, etc.) provided by the manufacturer to the parts of the structure submitted to the tests.

1.2. If several seat types differing from one another in  respect of the distance between the front and back ends of their feet can be mounted on the same anchorage, the test shall be carried out with the shortest footing.  This footing shall be described on the communication form.

2. TEST PROCEDURE

2.1. A force F shall be applied:

2.1.1. at a height of 0.75 m above the reference plane and on  the vertical line containing the geometrical centre of the surface bounded by the polygon having the different anchorage points as apexes or, if applicable, the extreme anchorages of the seat, by the rigid structure as defined in paragraph 1.1.,

2.1.2. in the horizontal direction and directed to the front of  the vehicle,

2.1.3. in a delay as short as possible and while a duration of

shall be maintained for

at least 0.2 s.

2.2. The force F shall be determined by the following  formula:

    F = (5,000 + 50) × i

 where:  F is given in N and i represents the number of seating positions of the seat for which the anchorages to be tested are to be approved.

Annex 6

MEASUREMENTS TO BE MADE

1. All measurements necessary shall be made with  measurement systems corresponding to the specifications of International Standard ISO 6487 entitled "Technique of measurement in impact tests:  Instrumentation" and published in 1980.

2. DYNAMIC TEST

2.1. Measurements to be made on the trolley

 The characteristics of the deceleration of the trolley shall be measured, from the accelerations measured on the rigid frame of the trolley, with measurement systems with a CFC of 60.

2.2. Measurements to be made on manikins

 The readings of the measuring devices shall be recorded through independent data channels of the following CFC:

2.2.1. Measurements in the head of the manikin

 The resultant triaxial acceleration referring to the centre of gravity ( r)[4]