Document ID: chunk:federal_register_of_legislation:F2019C00053:front:0:p29
Version: federal_register_of_legislation:F2019C00053
Segment Type: other
Provision Reference: 
Character Range: 80545–83468

or breakage of any ISOFIX low anchorage or surrounding area shall not constitute failure if the required force is sustained for the specified time.

         6.6.4.3.2.            Oblique direction force test:

Excursion in the direction of the force (after pre-load) of point X of SFAD during application of the 5kN 0.25 kN force shall be limited to 125 mm and permanent deformation including partial rupture or breakage of any ISOFIX low anchorage or surrounding area shall not constitute failure if the required force is sustained for the specified time.

         6.6.4.4.                   Test of ISOFIX anchorages systems and ISOFIX top tether anchorage:

A tension pre-load of 50 N 5 N must be applied between the SFAD and the top- tether anchorage. Horizontal excursion (after pre-load) of point X during application of the 8 kN 0.25 kN force shall be limited to 125 mm and permanent deformation including partial rupture or breakage of any ISOFIX low anchorage and top tether anchorage, or surrounding area shall not constitute failure if the required force is sustained for the specified time.
 Table 2: Excursions limits

Force direction  Maximum excursion of point X of SFAD
Forward          125 mm longitudinal
Oblique          125 mm force direction

         6.6.5.                         Additional forces.

         6.6.5.1.                   Seat inertia forces.

For the installation position where the load is transferred into a vehicle seat assembly, and not directly into the vehicle structure, a test shall be carried out to ensure that the strength of the vehicle seat anchorages to the vehicle structure is sufficient. In this test, a force equal to 20 times the mass of the relevant parts of the seat assembly shall be applied horizontally and longitudinally in a forward direction to the seat or the relevant part of the seat assembly corresponding to the physical effect of the mass of the seat in question to the seat anchorages. The determination of the additional applied load or loads and the load distribution shall be made by the manufacturer and agreed by the Technical Service.

At the request of the manufacturer, the additional load can be applied at the X point of SFAD during the static tests described above.

If the top tether anchorage is integrated to the vehicle seat, this test shall be performed with the ISOFIX top tether strap.

No breakage shall occur and excursion requirements given in the table 2 have to be fulfilled.

NOTE: This test does not have to be performed in case of any anchorage of the vehicle safety-belt system is integrated to the vehicle seat structure, and the vehicle seat is already tested and approved to meet the anchorage load tests required by this Regulation for adult passenger restraint.

7.                                     INSPECTION DURING AND AFTER STATIC TESTS FOR SAFETY-BELT ANCHORAGES

7.1.                               All