Detail of GB/Z 43468.1-2023

Introduction of GB/Z 43468.1-2023

GB/Z 43468.1-2023 Technical systems and aids for disabled or handicapped persons - Wheelchair tiedown and occupant-restraint systems - Part 1: Requirements and test methods for all systems 1 Scope This document specifies design and performance requirements and associated test methods for wheelchair tiedown and occupant-restraint systems (WTORS), as well as requirements for product marking and labelling and manufacturers' instructions and warnings to installers and consumers. It is applicable to all WTORS that use belt-type occupant restraints that are intended for occupied wheelchairs used as forward-facing seats by passengers and drivers of motor vehicles. This document is applicable to WTORS intended for use with all types of manual and powered wheelchairs, including three-and four-wheeled scooters, used by children and adults with a body mass equal to or greater than 22 kg. It is applicable also to WTORS designed for SWM with a particular make or model of wheelchair. This document is applicable primarily to complete WTORS, but portions can also be applied to components and subassemblies sold separately and for replacement parts. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 18029.19-2014 Wheelchairs -Part 19: Wheeled mobility devices for use as seats in motor vehicles (ISO 7176-19 : 2008, IDT ) GB/Z 30661.4-2021 Wheelchair seating - Part 4 : Seating systems for use in motor vehicles (ISO 16840-4 : 2009, IDT) ISO 3795 Road vehicles, and tractors and machinery for agriculture and forestry - Determination of burning behaviour of interior materials Note: GB/T 20953-2007 Tractors and machinery for agriculture and forestry - Determination of burning behavior of cab interior materials (ISO 3795 : 1989, MOD) ISO 6487 Road vehicles - Measurement techniques in impact tests - Instrumentation ECE R 16:2009 Uniform provisions concerning the approval of safety belts, restraint systems, child restraint systems and isofix child restraint systems for occupants of power-driven vehicles, Revision 6, 19 May 2009 FMVSS 209 Seat belt assemblies, Federal Motor Vehicle Safety Standards, 49 CFR part 571. 209, 1 October 2004 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 adult person having a mass equal to or greater than 43 kg 3.2 airbag device installed to supplement occupant restraint systems in power-driven vehicles, i. e. system which, in the event of a severe impact affecting the vehicle, automatically deploys a flexible structure intended to limit, by compression of the gas contained within it, the gravity of the contacts of one or more parts of the body of an occupant of the vehicle with the interior of the passenger compartment 3.3 anchor point location on a vehicle interior component, floor, wall, wheelchair or wheelchair tiedown, to which an anchorage is attached 3.4 anchorage assembly of components and fittings by which loads are transferred directly from the wheelchair tiedown to the vehicle, or from the occupant restraint to the vehicle, or wheelchair, or wheelchair tiedown or vehicle interior component 3.5 anthropomorphic test device ATD articulated physical analogue used to represent a wheelchair occupant in a test 3.6 automatic-locking retractor device to accommodate a belt or strap, allowing extraction of the belt or strap to the desired length and which, when the occupant restraint or wheelchair tiedown is fastened, automatically adjusts the belt to the wearer or strap to the wheelchair Note: Further extraction of the belt or strap is prevented without voluntary intervention. 3.7 back restraint device or system intended to limit rearward movement of an occupant during an impact by providing support to the back of the torso 3.8 belt webbing used as an occupant restraint or postural support 3.9 children person having a mass equal to or greater than 22 kg and less than 43 kg 3.10 clamp-type tiedown method of wheelchair tiedown or securement that uses only mechanical linkages and/orgrips requiring manual positioning and tensioning of the end fittings to the wheelchair 3.11 docking tiedown device docking securement device assembly of fixtures and components designed for installation in motor vehicles for the purpose of securing a wheelchair by engaging with, and locking onto, securement points on the wheelchair frame or on wheelchair securement adaptors attached to the wheelchair frame Note: Securement of the wheelchair generally occurs automatically during wheelchair engagement with the device in the vehicle, but release of the wheelchair usually requires operation of a mechanical lever or electrical switch. 3.12 emergency-locking retractor retractor with length-adjusting components, which automatically adjust the strap to the wearer, and a locking mechanism actuated in an emergency by deceleration of the vehicle (single sensitivity) or a combination of deceleration of the vehicle, movement of the webbing or any other automatic means (multiple sensitivity) Note: During normal driving conditions, the retractor does not restrict the freedom of movement of the wearer of the occupant restraint. 3.13 end fitting hardware at the securement end of a wheelchair tiedown strap designed to attach to wheelchair securement points on a wheelchair or wheelchair adaptor for the purpose of anchoring the wheelchair in a moving motor vehicle 3.14 excursion horizontal movement of an ATD or wheelchair relative to its initial position in an impact 3.15 fastener device used to physically secure hardware components and parts in place Note: These include, but are not limited to, bolts, nuts, screws, pins and rivets. 3.16 forward-facing orientation in which the wheelchair-seated occupant faces the front of the vehicle, with the wheelchair reference plane within ten degrees of the longitudinal axis of the vehicle 3.17 four-point strap-type tiedown wheelchair tiedown system that uses four strap assemblies to secure the wheelchair in thevehicle, attaching to the wheelchair at four separate securement points and to the vehicle at four separate anchor points 3.18 harness occupant-restraint assembly consisting of at least one belt designed to provide pelvic restraint and two belts that restrain the upper torso by applying forces to both shoulders 3.19 head restraint device whose purpose is to limit the rearward displacement of an occupant's head in relation to his/her torso in order to reduce the danger of injury to the cervical vertebrae in the event of an accident 3.20 H point point located on the left and right sides of the pelvic region of an anthropomorphic test device (ATD) that represent the approximate locations of the human hip joint centres in the side views, as specified by the ATD manufacturer 3.21 impact simulator device capable of fulfilling the dynamic test requirements specified within Annex A 3.22 impact sled part of an impact simulator to which components can be mounted for impact testing 3.23 manual adjustment device mechanism that enables the length and/or tension of a tiedown strap to be adjusted without the use of tools when securing a wheelchair in a vehicle

Contents of GB/Z 43468.1-2023