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1、BRITISH STANDARD BS ISO 7176-2:2001 Wheelchairs Part 2: Determination of dynamic stability of electric wheelchairs ICS 11.180.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 02:54:15 GMT+00:00 2006, Uncontrolled Copy, (
2、c) BSI BS ISO 7176-2:2001 This British Standard, having been prepared under the direction of the Health and Environment Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 1 November 2001 BSI 1 November 2001 ISBN 0 580 38644 9 Nat
3、ional foreword This British Standard reproduces verbatim ISO 7176-2:2001 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee CH/40, Sanitary chairs and wheelchairs, which has the responsibility to: A list of organizations repres
4、ented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Corresponden
5、ce Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of it
6、self confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and
7、 promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, ISO title page, pages ii to v, a blank page, pages 1 to 15 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued sin
8、ce publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 02:54:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 7176-2:2001(E) INTERNATIONAL STANDARD ISO 7176-2 Second edition 2001-06-15 Wheelchairs Part 2: Determination of dynamic stability of el
9、ectric wheelchairs Fauteuils roulants Partie 2: Dtermination de la stabilit dynamique des fauteuils roulants lectriques Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 02:54:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 7176-2:2001(E) DPF dlcsiremia ihTs PDF file mya ctnoain emdeddeb tyfe
10、pcaes. In acccnadroe with Aebods licnesign lopic,y this file may be pirntde ro ivwede tub slahl ton eb ideted lnuess teh tyfepacse which aer emdeddeb era licnesed to dna intslaled on teh computre freporming teh idetign. In wodlnidaogn this f,eli trapies accept tniereh teh sersnoptilibiy of ton nifrg
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12、mizde for pirtning. Evyre cera sah neeb taken to enseru taht teh file is suitlbae fro sue by ISO memreb idob.se In teh lnuikley etnev ttah a plborem leratign to it is f,dnuo lpsaee ifnrom teh tneClar Sceterairat at the sserdda givne lebwo. ii Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 02
13、:54:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 7176-2:2001(E) iii ContentsPage Foreword.iv 1Scope 1 2Normative references1 3Terms and definitions .1 4Principle2 5Apparatus.2 6Initial set-up of test wheelchair3 6.1General3 6.2Seat height3 6.3Adjustable controllers.3 6.4Antitip devices .3 6.5Ke
14、rb climbing devices.4 6.6Test load.4 6.7Batteries4 7Test procedure.4 8Tests for rearward dynamic stability.5 8.1Wheelchair preparation.5 8.2Starting forwards.5 8.3Stopping after travelling forwards.5 8.4Braking when travelling backwards.6 8.5Travelling forward up a step transition from a standing st
15、art6 8.6Travelling backward down a step transition from a standing start6 9Tests for forward dynamic stability.7 9.1Wheelchair preparation.7 9.2Braking when travelling forwards7 9.3Travelling forward down a slope onto a horizontal surface7 9.4Travelling forward up a step transition at maximum speed7
16、 9.5Travelling forward down a step transition from a standing start.8 10Tests for dynamic stability in lateral directions.8 10.1Wheelchair preparation.8 10.2Turning on a slope.9 10.3Turning in a circle at maximum speed 9 10.4Turning suddenly at maximum speed.9 10.5One side of the wheelchair drops do
17、wn a step transition.9 11Test report10 12Disclosure of results .10 Annex A (normative) Stability scoring system 12 Annex B (informative) Recommended format of test report results13 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 02:54:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 7176-2:2
18、001(E) iv 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
19、 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 a
20、ll matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International
21、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 part of ISO 7176 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Internationa
22、l Standard ISO 7176-2 was prepared by Technical Committee ISO/TC 173, Technical systems and aids for disabled or handicapped persons, Subcommittee SC 1, Wheelchairs. This second edition cancels and replaces the first edition (ISO 7176-2:1990), which has been technically revised. ISO 7176 consists of
23、 the following parts, under the general title Wheelchairs: Part 1: Determination of static stability Part 2: Determination of dynamic stability of electric wheelchairs Part 3: Determination of effectiveness of brakes Part 4: Energy consumption of electric wheelchairs and scooters for determination o
24、f theoretical distance range Part 5: Determination of overall dimensions, mass and turning space Part 6: Determination of maximum speed, acceleration and deceleration of electric wheelchairs Part 7: Measurement of seating and wheel dimensions Part 8: Requirements and test methods for static, impact
25、and fatigue strengths Part 9: Climatic tests for electric wheelchairs Part 10: Determination of obstacle-climbing ability of electric wheelchairs Part 11: Test dummies Part 13: Determination of coefficient of friction of test surfaces Part 14: Power and controls systems for electric wheelchairs Requ
26、irements and test methods Part 15: Requirements for information disclosure, documentation and labelling Part 16: Resistance to ignition of upholstered parts Requirements and test methods Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 02:54:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 71
27、76-2:2001(E) v Part 22: Set-up procedures Part 23: Attendant-operated stair-climbing devices The following parts are also on the programme of work: Part 17: Serial interface for electric wheelchair controllers Part 19: Wheeled mobility devices for use in motor vehicles Part 20: Determination of the
28、performance of stand-up type wheelchairs Part 21: Electromagnetic compatibility of electrically powered wheelchairs and motorized scooters Requirements and test methods Part 24: User-operated stair-climbing devices Annex A forms a normative part of this part of ISO 7176. Annex B is for information o
29、nly. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 02:54:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 02:54:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTERNATIONAL STANDARDISO 7176-2:2001(E) ISO 1002 All rights rsedevre1 Wheelchair
30、s Part 2: Determination of dynamic stability of electric wheelchairs 1Scope This part of ISO 7176 specifies test methods for determining the dynamic stability of electrically powered wheelchairs. This part of ISO 7176 is applicable to electrically powered wheelchairs including scooters with a maximu
31、m nominal speed not exceeding 15 km/h, intended to carry one person. 2Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of ISO 7176. For dated references, subsequent amendments to, or revisions of, any
32、of these publications do not apply. However, parties to agreements based on this part of ISO 7176 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referr
33、ed to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 6440:1985, Wheelchairs Nomenclature, terms and definitions. ISO 7176-11:1992, Wheelchairs Part 11: Test dummies. ISO 7176-13:1989, Wheelchairs Part 13: Determination of coefficient of friction of
34、 test surfaces. ISO 7176-15:1996, Wheelchairs Part 15: Requirements for information disclosure, documentation and labelling. ISO 7176-22:2000, Wheelchairs Part 22: Set-up procedures. 3Terms and definitions For the purposes of this part of ISO 7176, the terms and definitions given in ISO 6440 and the
35、 following apply. 3.1 antitip device device which limits the extent of tipping of a wheelchair NOTE 1These may include fixed or removable wheels, posts, skids or footrests. They may operate in forwards, rearwards or lateral directions of instability. NOTE 2Auxiliary wheels on which, in certain condi
36、tions, the wheelchair is intended to run are not included. 3.2 auxiliary wheels integral wheels onto which the manufacturer intends the wheelchair to be capable of being tipped and run 1 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 02:54:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 71
37、76-2:2001(E) 2 ISO 1002 All rights rsedevre NOTEIf auxiliary wheels are optional, the wheelchair should at least be tested in its standard configuration. The wheelchair may also be tested in an optional configuration in a separate test report. 3.3 direct steering means by which the direction of trav
38、el of a wheelchair is controlled by the user operating a linkage which acts directly on the alignment of one or more wheels EXAMPLETiller controls, often found on scooters. NOTE 1Wheelchairs using this mechanism normally do not have freely pivoting castors. NOTE 2Hybrid wheelchairs may include elect
39、ronic controls which move an actuator to mechanically steer wheels. 3.4 input control device means by which the user directs the wheelchair to move at the desired speed and/or direction of travel 3.5 lifting wheel(s) wheel(s) which lose contact with the test plane under conditions of instability 3.6
40、 user adjustable component which can be adjusted in position or magnitude with or without the use of tools 3.7 wheel lift loss of contact between a wheel and test surface occurring during conditions of instability NOTE 1This does not include transient loss of contact due to surface irregularity or t
41、ransitions. NOTE 2This does not include deliberate loss of contact such as a transition onto auxiliary wheels or rotation of cluster wheels. 4Principle The wheelchair is subjected to a number of driving tests simulating normal use of a wheelchair while its movements are observed for the occurrence o
42、f a range of defined conditions of instability. 5Apparatus 5.1Rigid, flat, horizontal test plane with coefficient of friction as specified in ISO 7176-13 and of sufficient size to conduct the tests. The test plane shall be long enough to allow the wheelchair to reach maximum speed. NOTEAn area of ap
43、proximately 10 m ? 3 m is normally of sufficient size but the testing of larger chairs may need a larger test plane. 5.2Rigid, flat, inclined test ramp with inclination adjustable to 3?0,2, 6?0,2 and 10?0,2 relative to the horizontal. The test ramp shall run immediately from the horizontal test plan
44、e via a transition with a radius of less than 12 mm. The overall slope of the test ramp shall be measured top to bottom with an accuracy of?0,2 by checking with a transit, water level or electronic instrumentation with?0,2 accuracy to compare the height at the bottom with that at the top. The test r
45、amp shall be long enough to allow the wheelchair to reach maximum speed. 2 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 02:54:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 7176-2:2001(E) ISO 1002 All rights rsedevre3 NOTE 1Alternatively, three separate fixed ramps may be used to provid
46、e the three required inclinations. NOTE 2A ramp approximately 10 m ? 3 m is normally of sufficient area, but the testing of larger chairs may need a larger ramp. 5.3Rigid vertical step transition, with the following properties: a)immediately adjacent to a horizontal test plane and followed by a furt
47、her horizontal plane onto which a wheelchair can be driven via the step from the horizontal test plane; b)step heights of 12 mm, 25 mm, 50 mm, and multiples of 25 mm above that if claimed by the manufacturer; c)a top edge of the step with a radius of 6 mm?1 mm; d)the tolerance on total step height s
48、hall be?1 mm. NOTE 1This may be either a single step with adjustable height or five separate fixed steps. NOTE 2An area of approximately 1 m ? 5 m is normally of sufficient size for the higher plane. 5.4Test dummy in accordance with ISO 7176-11, or a human test driver. If a dummy is used, remote con
49、trol may be used to operate the wheelchair controls. This may be done by a telemetry system, by an operator running along side the wheelchair or by other similar means. 5.5Supplementary weights to add to the wheelchair to give the mass distribution equivalent to the relevant dummy (only required if a human test driver is used). 6Initial set-up of test wheelchair 6.1General Prepare the test wheelchair in accordance with ISO 7176-22, with the exceptions given in 6.2 to 6.7. 6.2Seat height If the seat height is adjustable
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