PROVISIONS CONCERNING THE INSTALLATION OF FORWARD-FACING AND REARWARD-FACING ISOFIX CHILD RESTRAINT SYSTEMS OF UNIVERSAL AND SEMI-UNIVERSAL CATEGORIES INSTALLED ON ISOFIX POSITIONS
General
1.1. The test procedure and the requirements in this appendix shall be used to determine the suitability of ISOFIX positions for the installation of ISOFIX child restraint systems of universal and semi-universal categories.
1.2. The tests may be carried out in the vehicle or in a representative part of the vehicle.
Test procedure
For any ISOFIX position in the vehicle, as indicated by the car manufacturer, in table 2 of Appendix 3, it has to be checked that it is possible to accommodate the corresponding child restraint fixture(s) (CRF):
2.1. When checking a CRF on a seat, this seat may be adjusted longitudinally to its rearmost position and in its lowest position.
2.2. Adjust the seat-back angle to the manufacturer’s design position and the head restraint in the lowest and rearmost position. In the absence of any specification an angle of the seat-back corresponding to a torso angle of 25° from the vertical, or the nearest fixed position of the seat-back, shall be used.
When checking a CRF on a rear seat, the vehicle seat located in front of this rear seat may be adjusted longitudinally forward but not further than the mid position between its rearmost and fore most positions. The seat backrest angle may also be adjusted, but not to a more upright angle than corresponding to a torso angle of 15°.
2.3. Place a cotton cloth on the seat-back and cushion.
2.4. Place the CRF on the ISOFIX position.
2.5. Push, towards ISOFIX anchorages system, on the center between the ISOFIX anchorages with a force of 100 N 10 N, applied parallel to the lower surface, and remove the force.
2.6. Attach the CRF to the ISOFIX anchorages system.
2.7. Push vertically downwards on the centre of the upper surface of the fixture with a force of 100 N 10 N, and remove the force.
Requirements
The following testing conditions only apply for the CRF(s) when accommodated in the ISOFIX position. It is not required that the CRF(s) shall be possible to move in and out of the ISOFIX position under these conditions.
3.1. It has to be possible to accommodate the CRF(s) without interference with the vehicle interior. The CRF base shall have a pitch angle of 15° 10°, above the horizontal plane passing through the ISOFIX anchorages system.
3.2. The ISOFIX top tether anchorage, if any, shall remain accessible.
3.3 Should the above requirements not be met with the adjustments indicated in paragraph 2. above, the seats, the seat-backs, the head restraints may be adjusted to alternative positions designated by the manufacturer for normal use following which the above installation procedure shall be repeated and the requirements verified and met. These alternative positions shall be included as information in table 2 given in Appendix 3 to this annex.
3.4 Should the above requirements not be fulfilled when some removable interior fittings were present, such fittings may be removed and then requirements of paragraph 3. have to be verified again and fulfilled. In such a case corresponding information shall be included in table 2 of Appendix 3 of this annex.
ISOFIX child restraint system size classes and fixtures
A - ISO/F3: Full-Height Forward Facing toddler CRS
B - ISO/F2: Reduced-Height Forward Facing toddler CRS
D - ISO/R2: Reduced-Size Rearward Facing toddler CRS
E - ISO/R1: Rearward Facing infant CRS
F – ISO/L1: Left Lateral Facing position CRS (carry-cot)
G - ISO/L2: Right Lateral Facing position CRS (carry-cot)
The fixtures below shall be constructed with a mass between 5 and 15 kg and shall be of suitable durability and stiffness to satisfy the functional requirements.
4.1. Full-height forward-facing toddler child restraint systems envelope
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Key
1 Limits in the forward and upwards directions
2 Dashed line marks area where a support leg, or similar, is allowed to protrude
3 N/A
4 Further specifications of the connector area are given in Regulation No. 44
Figure 1 - ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS (height 720 mm) ISOFIX SIZE CLASS A
4.2. Reduced-height forward-facing toddler child restraint systems envelope
Image unavailable in extracted text
Note: Key
Note: 1 Limits in the forward and upwards directions
2 Dashed line marks area where a support leg, or similar, is allowed to protrude
3 N/A
4 Further specifications of the connector area are given in Regulation No. 44
5 Attachment point for the top tether strap
Figure 2 – ISO/F2 envelope dimensions for a reduced-height forward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B
4.3. Reduced-height second version back shape forward-facing toddler child restraint systems envelope
Image unavailable in extracted text
Note: Key
Note: 1 Limits in the forward and upwards directions
2 Dashed line marks area where a support leg, or similar, is allowed to protrude
3 N/A
4 Further specifications of the connector area are given in Regulation No. 44
Figure 3 – ISO/F2X envelope dimensions for a reduced-height second version back surface shape forward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1
4.4. Full-size rearward facing toddler child restraint system envelope
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Note: Key
Note: 1 Limits in the rearward and upwards directions
Note: 2 Dashed line marks area where a support leg, or similar, is allowed to protrude
Note: 3 The backwards limitation (to the right in the figure) is given by the forward-facing envelope in Figure 2
Note: 4 Further specifications of the connector area are given in Regulation No. 44
Figure 4 - ISO/R3 envelope dimensions for a full-size rearward-facing toddler CRS
ISOFIX SIZE CLASS C
4.5. Reduced-size rearward-facing toddler child restraint systems envelope
Image unavailable in extracted text
Note: Key
Note: 1 Limits in the rearward and upwards directions
Note: 2 Dashed line marks area where a support leg, or similar, is allowed to protrude
Note: 3 The backwards limitation (to the right in the figure) is given by the forward-facing envelope in Figure 2
Note: 4 Further specifications of the connector area are given in Regulation No. 44
Figure 5 - ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS
ISOFIX SIZE CLASS D
4.6. Rearward facing infant child restraint systems envelope
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Note: Key
Note: 1 Limits in the rearward and upward directions
Note: 2 Dashed line marks area where a support leg, or similar, is allowed to protrude
Note: 3 The backwards limitation (to the right in the figure) is given by the forward-facing envelope in Figure 2
Note: 4 Further specifications of the connector area are given in Regulation No. 44
Figure 6 – ISO/R1 envelope dimensions for an infant-size rearward-facing CRS
ISOFIX SIZE CLASS E
4.7. Lateral facing child restraint systems envelope
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Note: Key
Note: 1 Limits in the rearward and upward directions
Note: 2 Dashed line marks area where a support leg, or similar, is allowed to protrude
Note: 3 The backward limitation (to the right in the figure) is given by the forward-facing envelope in Figure 2
Note: 4 Further specifications of the connector area are given in ISO 13216-1, Figures 2 and 3
Figure 7 – Envelope dimensions for lateral facing position CRS - ISO/L1- ISOFIX SIZE CLASS F or symmetrically opposite – ISO/L2 – ISOFIX CLASS G"