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1、J IS JAPANESE INDUSTRIAL STANDARD Translated and Published by Japanese Standards Association JIS B 9708 2002 Safety of machinery- Safety distances to prevent danger zones being reached by the lower limbs ICs 13.110; 13.180 Reference number : JIS B 9708 : 2002 (E) PROTECTED BY COPYRIGHT 6s Copyright
2、Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 02:27:38 MDTNo reproduction or networking permitted without license from IHS -,-,- B 9708 : 2002 (IS0 13853 : 1998) Foreword This translation has been
3、made based on the original Japanese Industrial Standard established by the Minister of Economy, Trade and Industry, and the Minister of Health, Labour and Welfare through deliberations at the Japanese Industrial Standards Committee in accordance with the Industrial Standardization Law: Date of Estab
4、lishment: 2002-07-25 Date of Public Notice in Official Gazette: 2002-07-25 Investigated by: Japanese Industrial Standards Committee Standards Board Technical Committee on Industrial Machinery JIS B 9708 : 2002, First English edition published in 2004-11 Translated and published by: Japanese Standard
5、s Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, the original JIS is to be the final authority. O JSA 2004 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or m
6、echanical, including photocopying and microfilm, without permission in writing from the publisher. Printed in Japan PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 02
7、:27:38 MDTNo reproduction or networking permitted without license from IHS -,-,- B 9708 : 2002 (IS0 13853 : 1998) Contents Page Introduction . 1 2 3 4 4.1 4.2 5 Scope Normative references Definitions Safety distances to prevent access by lower limbs . General Reaching through openings using the lowe
8、r limbs . Distances to impede free access by lower limbs Annex A (informative) Impeding free movement under protective structures (i PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resa
9、le, 03/12/2007 02:27:38 MDTNo reproduction or networking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD JIS B 9708 : 2002 (IS0 13853 : 1998) Safety of machinery- Safety distances to prevent danger zones being reached by the lower limbs Introduction This Japanese Industrial Sta
10、ndard has been prepared based on the first edition of IS0 13853 Safety of machinery-Safety distances to prevent danger zones being reached by the lower limbs published in 1998 without modifying the technical contents. The foreword of the original International Standard has been excluded because it A
11、lso, the portion of introduction of the original International Standard which is In specifying safety distances to prevent lower-limb access and distances to im- pede free access, a number of aspects have to be taken into consideration, such as: - reach situation of the lower limbs occurring when ma
12、chinery is being used: - reliable surveys of anthropometric data, taking into account ethnic groups likely to be found in the countries concerned; - biomechanical facts, such as compression and stretching of parts of the human body and limits of joint rotation; is not part of the provisions. describ
13、ed in another standard has been excluded from this Standard. - technical and practical aspects. this Standard could be improved. If these aspects were further developed, the current state of the art reflected in 1 Scope This Standard establishes values for safety distances to prevent access and dist
14、ances to impede free access to machinery danger zones to prevent their be- ing reached by the lower limbs of persons of 14 years of age and above. NOTE 1 The values given are based on practical experience which has been found to be adequate for this group of persons. These distances apply when adequ
15、ate safety can be achieved by distance alone, and when access by the upper limbs is not foreseeable according to the risk assess- ment. These safety distances will not provide sufficient protection against cer- tain hazards, for example radiation and emission of substances. For such hazards, additio
16、nal or other measures need to be taken. NOTE 2 The safety distances to prevent access relate to openings, and serve to protect those persons trying to reach danger zones under the conditions specified for differ- ent reaching situations. The distances to impede free relate to the height from ground
17、level to the protec- tive structure, and serve to reduce risk to persons by limiting the free movement of the lower limbs. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/
18、2007 02:27:38 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 B 9708 : 2002 NOTE 3 (IS0 13853 : 1998) If persons below 14 years of age are to be taken into account, it is not relevant to establish values other than those for upper limbs. In this case the safety distances
19、to prevent danger zones being reached by the upper limbs, derived from table 5 of JIS B 9707 : 2002, will apply. For certain applications, there are justifiable reasons to deviate from these dis- tances. Standards dealing with these applications should indicate how adequate safety can be achieved. T
20、he International Standard corresponding to this Standard is as follows. In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/IEC Guide 21. IS0
21、13853 : 1998 Safety of machinery-Safety distances to prevent danger zones being reached by the lower limbs (IDT) NOTE 4 2 Normative references The following standards contain provisions which, through reference in this Standard, constitute provisions of this Standard. The most recent editions of the
22、 standards (including amendments) indicated below shall be applied. JIS B 9702 : 2000 Safety of machinery-Principles of risk assessment JIS B 9707 : 2002 Safety of machinery-Safety distances to prevent danger zones being reached by the upper limbs IS0 13852 : 1996 Safety of machinery-Safety distance
23、s to prevent danger zones being reached by the upper limbs is identical with the said standard. ISO/DIS 12100-1 Safety of machinery-Basic concepts and general principles for design-Part 1 : Basic terminology, methodology Remarks : 3 Definitions DIS 12100-1 and JIS B 9707 : 2002 apply. For the purpos
24、es of this Standard, the definitions given in ISO/ 4 Safety distances to prevent access by lower limbs 4.1 General 4.1.1 Assumptions The safety distances have been derived by making the following assumptions: - the protective structures and any openings in them retain their shape and posi- tion; oth
25、erwise further consideration shall be given to achieve adequate safety; - safety distances are measured from the surface restricting the body or the rel- evant part of the body. 4.1.2 Risk assessment A risk assessment (see ISODIS 12100-1 and JIS B 9702 : 2000) shall be made before determination of t
26、he required safety distance for pre- venting reaching danger zones. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 02:27:38 MDTNo reproduction or networking permitte
27、d without license from IHS -,-,- 3 B 9708 : 2002 (IS0 13853 : 1998) This Standard shall be used if the risk assessment justifies that there is a risk only to the lower limbs. Where there is a risk to both upper and lower limbs, then for a given opening the largest safety distance given in table 1 of
28、 this Standard or in table 4 of JIS B 9707 : 2002 shall be used. The minimum safety distances ST given in table 1 apply to persons reaching through openings using the lower limbs in an attempt to reach a danger zone. 4.2 Reaching through openings using the lower limbs 4.2.1 Openings of regular shape
29、 The dimension e of openings corresponds to the side of a square opening, the diameter of a round opening or the narrowest di- mension of a slot opening. Slot openings with e 180 mm and square or round openings with e 240 mm will allow access for the whole body. The values given in table 1 are indep
30、endent of whether clothing or footwear is being worn. 4.2.2 Openings of irregular shape the following steps shall be carried out. a) Determine first: In the case of openings of irregular shape, - the diameter of the smallest round opening and - the side of the smallest square opening and - the width
31、 of the narrowest slot opening into which the irregular opening can be completely inserted (see hatched area in figure i). Select the corresponding three safety distances in accordance with table 1. The shortest safety distance of the three values selected in b) can be used as the safety distance fo
32、r this opening of irregular shape. b) c) PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 02:27:38 MDTNo reproduction or networking permitted without license from IHS
33、-,-,- 4 B 9708 : 2002 (IS0 13853 : 1998) Table 1 Unit: mm Safety distance sr Illustration Opening Part of lower limb Square or round Slot Toe tip e 1 5 O O Il A 2 10 O Toe 5 Protective structure h Height to protective structure s Safety distance for impedance Figure A.l Table A.1 gives distances s f
34、or particular cases where access of the lower limbs is impeded with the person remaining in a standing position (see figure A.l) without any additional support. Where there is a risk of slipping or misuse, applying the values given in table A.l can be inappropriate. There should be no interpolation
35、between the values in this table. If the height h up to the protective structure lies between two values, then the distance for the higher value of h should be used. Table A.l Unit: mm I Height, h, up to protective structure I h I 200 200 h s 400 400 h s 600 600 h s 800 800 h I 1 O00 Case 1 2 340 2
36、550 2 850 L 950 2 1 125 Distance s 2665 I 2290 I 2 765 2 615 h 950 2 900 PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 02:27:38 MDTNo reproduction or networking per
37、mitted without license from IHS -,-,- Emata for JIS (English edition) are printed in Standardization Journul, published monthly by the Japanese Standards Association, and also provided to subscribers of JS (English edition) in Monthly Znfonnation. Errata will be provided upon request, please contact
38、: Standardization Promotion Department, Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN TEL. 03-3583-8002 FAX. 03-3583-0462 100% Recycled paper PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 02:27:38 MDTNo reproduction or networking permitted without license from IHS -,-,-