ISO 10542-4:2004

Technical systems and aids for disabled or handicapped persons — Wheelchair tiedown and occupant-restraint systems — Part 4: Clamp-type tiedown systems

ISO 10542-4:2004 specifies test methods and requirements for design and performance, instructions to installers and users, and product marking and labelling of wheelchair tiedown and occupant-restraint systems (WTORS). It is applicable only to WTORS that use clamp-type tiedown to secure wheelchairs when used as a forward-facing seat by an adult passenger or driver of a motor vehicle. ISO 10542-4:2004 is applicable primarily to complete WTORS, but a portion of ISO 10542-4:2004 can also be applied to components and sub-assemblies sold separately and for replacement parts. ISO 10542-4:2004 is applicable to WTORS intended for use with all types of manual and powered wheelchairs, including scooters with three or more wheels.

Assistances et aides techniques pour les personnes invalides ou handicapées — Systèmes d'attache du fauteuil roulant et de retenue de l'occupant — Partie 4: Systèmes de fixation par crampon

General Information

• Status: Withdrawn
• Publication Date: 30-Sep-2004
• Withdrawal Date: 30-Sep-2004
• ICS: 11.180.10 - Aids and adaptation for moving
• Technical Committee: ISO/TC 173/SC 1 - Wheelchairs
• Drafting Committee: ISO/TC 173/SC 1/WG 6 - Wheelchair restraint systems
• Current Stage: 9599 - Withdrawal of International Standard
• Completion Date: 19-Dec-2012

Relations

• Revised: ISO 10542-1:2012 - Technical systems and aids for disabled or handicapped persons — Wheelchair tiedown and occupant-restraint systems — Part 1: Requirements and test methods for all systems
• Effective Date: 02-Feb-2013
• Consolidated By: ISO 11148-10:2011 - Hand-held non-electric power tools — Safety requirements — Part 10: Compression power tools
• Effective Date: 06-Jun-2022

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 10542-4
First edition
2004-09-15
Technical systems and aids for disabled
or handicapped persons — Wheelchair
tiedown and occupant-restraint
systems —
Part 4:
Clamp-type tiedown systems
Assistances et aides techniques pour les personnes invalides ou
handicapées — Systèmes d'attache du fauteuil roulant et de retenue de
l'occupant —
Partie 4: Systèmes de fixation par crampon

Reference number
ISO 10542-4:2004(E)
©
ISO 2004

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ISO 10542-4:2004(E)
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ISO 10542-4:2004(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International
Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 10542-4 was prepared by Technical Committee ISO/TC 173, Assistive products for persons with disability,
Subcommittee SC 1, Wheelchairs.
ISO 10542 consists of the following parts, under the general title Technical systems and aids for disabled or
handicapped persons — Wheelchair tiedown and occupant-restraint systems:
— Part 1: Requirements and test methods for all systems
— Part 2: Four-point strap-type tiedown systems
— Part 3: Docking-type tiedown systems
— Part 4: Clamp-type tiedown systems
— Part 5: Systems for specific wheelchairs
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ISO 10542-4:2004(E)
Introduction
Providing effective crash protection for the wheelchair-seated occupant of a motor vehicle usually requires that
equipment be installed to secure the wheelchair and restrain the occupant of the wheelchair. ISO 10542-1 gives
general requirements for all wheelchair tiedown and occupant-restraint systems (WTORS). The provisions of
ISO 10542-1 apply except as amended and supplemented by this part of ISO 10542 which gives particular
requirements and test procedures for WTORS and their sub-assemblies and components that use a
mechanical clamp-type system to secure the wheelchair in a vehicle.
©
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INTERNATIONAL STANDARD ISO 10542-4:2004(E)
Technical systems and aids for disabled or handicapped
persons — Wheelchair tiedown and occupant-restraint
systems —
Part 4:
Clamp-type tiedown systems
1Scope
This part of ISO 10542 specifies test methods and requirements for design and performance, instructions to
installers and users, and product marking and labelling of wheelchair tiedown and occupant-restraint systems
(WTORS).
It is applicable only to WTORS that use clamp-type tiedown to secure wheelchairs when used as a forward
facing seat by an adult passenger or driver of a motor vehicle.
This part of ISO 10542 is applicable primarily to complete WTORS, but a portion of this part of ISO 10542 can
also be applied to components and sub-assemblies sold separately and for replacement parts.
This part of ISO 10542 is applicable to WTORS intended for use with all types of manual and powered
wheelchairs, including scooters with three or more wheels.
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.
ISO 10542-1:2001, Technical systems and aids for disabled or handicapped persons — Wheelchair tiedown
and occupant-restraint systems — Part 1: Requirements and test methods for all systems
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
clamp-type tiedown
method of wheelchair tiedown or securement that uses only mechanical linkages and/or grips requiring manual
positioning and tensioning of the end fittings to the wheelchair
3.2
wheelchair securement adaptor
hardware that is attached temporarily or permanently to the wheelchair frame to accommodate wheelchair
securement by a wheelchair tiedown
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ISO 10542-4:2004(E)
4 Design requirements
The design requirements of ISO 10542-1 apply, together with the additional requirement that clamp-type
wheelchair tiedowns be designed such that securing and releasing the tiedown according to the manufacturer's
instructions shall not require operating forces in excess of
— 60 N for hand-operated devices,
— 100 N for foot-operated devices,
— 2,25 N·m torque for screw-operated clamp-type tiedowns
in order to meet the dynamic performance requirements of 6.1 in ISO 10542-1:2001, as tested in accordance
with Annex A.
NOTE Design recommendations are presented in Annex B of this document.
5 Information, identification and instruction requirements
...