ISO 10542-1:2012/Amd.1:2021 Technical systems and aids for disabled or handicapped persons — Wheelchair tiedown and occupant-restraint systems —Part 1: Requirements and test methods for all systems

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Technical systems and aids for disabled or handicapped persons — Wheelchair tiedown and occupant-restraint systems —Part 1: Requirements and test methods for all systems是于2012-10-01发布的ISO标准，适用于世界范围。

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Technical systems and aids for disabled or handicapped persons — Wheelchair tiedown and occupant-restraint systems —

Part 1: Requirements and test methods for all systems

AMENDMENT 1: Annexes K, L, M

Introduction

Add the following text to the end of the third paragraph:

In addition, Annex K provides a test method and performance measures for WTORS manufacturers who wish to test the wheelchair securement system for rear-impact conditions, and Annex M provides a test method and performance measures for WTORS manufacturers who wish to evaluate the rear-impact performance of vehicle-mounted, head-and-back restraints.

Add the following text to the end of the fourth paragraph:

Annex K provides a test method whereby they are exposed to a 14 g, 25 km/h rear impact sled test.

Add the following text to the end of the seventh paragraph:

Annex L provides a method for evaluating wheelchair securement systems for the situation of wheelchair occupants restrained by a three-point belt comprised of a vehicle-anchored shoulder belt and a wheelchair-anchored pelvic belt.

Clause 2

Add the following normative references:

ISO 16840-4:2009, Wheelchair seating — Part 4: Seating systems for use in motor vehicles

ISO 7176-19:2008/Amd 1:2015, Wheelchairs — Part 19: Wheeled mobility devices for use as seats in motor vehicles — Amendment 1: Annex G

Clause 3

Add the following terms and definitions:

3.46

foot/leg strap

length of webbing mounted forward and below the ATD knee to limit upward movement of the leg after peak forward motion of the ATD knee has occurred

Note 1 to entry: The foot/leg strap minimizes damage to the ATD and provides for more realistic movement of the lower extremities during frontal-impact loading by limiting extension of the knee joints and upward movement of the ATD’s lower extremities. It does this in a manner that does not affect forward excursions of the ATD, but slightly reduces the severity of rearward rebound of the ATD while making this rebound more controlled and consistent between tests.

3.47

sharp edge

exposed, rigid edge with a radius of less than 2 mm

3.48

vehicle-mounted, head-and-back restraint

vehicle-anchored, head-and-back restraint

optional portion of a WTORS that is positioned behind a forward-facing occupant seated in a wheelchair for the purpose of limiting rearward movement of the occupant’s torso, head, and neck to reduce the risk of injury in rear-impact collisions

Note 1 to entry: A vehicle-mounted, head-and-back restraint system is an optional part of a WTORS.

5.2.1

Add the following notes to the end of the subclause:

Note 1 The performance of WTORS in frontal impacts for systems with a wheelchair-anchored pelvic belt can be evaluated using the test method and performance criteria given in Annex L.

Note 2 The performance of WTORS in rear impacts can be evaluated using the test method and performance criteria given in Annex K.

Note 3 The performance of a WTORS with an optional vehicle-mounted, head-and-back restraint in rear impacts can be evaluated using the design guidelines, test method and performance criteria given in Annex M.

J.4

Replace the text with the following:

J.4 Engineering drawings for test equipment

Engineering drawings for the surrogate wheelchair (SWC), surrogate WTORS (SWTORS) and the surrogate wheelchair base (SWCB) listed below can be obtained from:

The Biosciences Group, University of Michigan Transportation Research Institute (UMTRI), 2901 Baxter Road, Ann Arbor, MI 48109-2150 USA, Phone: (734) 763-3582, Fax: (734) 647-3330 and downloaded from the website: http:// wc- transportation-s afety .umtri .umich .edu/ wts -standards/ WC 4engineering drawings The available drawings include

1) a surrogate wheelchair specified in Annex E and used in the frontal-impact tests of Annex A and Annex L and in the methods for measuring belt-restraint geometry of Annex B,

2) a surrogate wheelchair base (SWCB) used in ISO 16840-4 for frontal-impact testing of wheelchair seating systems and for rear-impact testing of vehicle-mounted, head-and-back restraints in Annex M,

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