21.04.23

Dimensions of Universal Boosters

43th meeting of the GRSP Informal Group on Child Restraint Systems

25th March 2014

Speaker:

Franz Peleska

21.04.23

Universal Booster Dimensions

• Maximum external dimensions: Universal Vehicle Booster Seat Fixture (VSF2)

• Latest proposal WG1 N 1042 (October 2013)

• Designed to accommodate children up to 135 cm in booster seats with backrests

• In Germany: mandatory to transport children up to 150 cm in CRS

800 mm

520 mm

21.04.23

Booster Heights in the EU

Most booster seats on the European market outside proposed envelope in uppermost backrest position

21.04.23

We propose that…

• Parents may continue using booster seats with backrests when their children become taller than 135 cm (if their car provides enough space)

• Universal Boosters with a size range exceeding 135 cm:

– shall fit in VSF2 while providing the minimum internal geometrical dimensions required for a child with a stature of 135 cm ( paragraph 6.3.2.1. & Annex 18)

– may extend beyond VSF2 to provide additional space for bigger children

21.04.23

Side Impact Protection

• Safety performance of CRS in side impact accidents can be improved significantly by reducing the empty space between the side protection of the CRS and the vehicle door – similar to the reduction of slack in the belt system in frontal accidents

• VSF2: maximum width of 520 mm for boosters due to the universality requirement rather at the lower end of available space in vehicles

Proposal: Universal Boosters with adjustable elements intended to reduce the space between the CRS and the vehicle door may exceed the maximum width of 520 mm in all adjustment positions except one.

21.04.23

Proposal for an Amendment

6.3.2.2.2. Non-Integral Class Enhanced Child Restraint Systems

The maximum dimensions for width, height and depth of the Enhanced Child Restraint System and the locations of the ISOFIX anchorages system if any, with which its attachments shall engage, shall be defined by the Vehicle Seat Fixture (VSF2) as defined in paragraph 2.17.2. of this Regulation.

•Universal Booster Enhanced Child Restraint Systems shall fit within the ISO/Fxxx size envelope while providing the internal geometrical characteristics according to paragraph 6.3.2.1. for any size up to 135 cm within the size range declared by the manufacturer. Adjustable elements intended to reduce the empty space between the ECRS and the vehicle door may exceed the ISO/Fxxx size envelope in all adjustment positions except one.

•Specific Vehicle Booster…

21.04.23

Appendix

21.04.23

Appendix