1、STD-BSI BS EN 1335-1-ENGL 2000 m L624669 0860416 713 m BRITISH STANDARD Office furniture - Office work chair - Part 1: Dimensions - Determination of dimensions The European Standard EN 13351:2000 has the status of a British Standard ICs 97.140 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PEFLMITTED B
2、Y COPYRIGHT LAW IS EN 335-1:ZOOO STD-BSI BS EN 1335-L-ENGL 2000 W Lb21ibb7 OBb04L b5T m BS EN 1335-1:2000 Amd.No. National foreword Date Comments This British Standard is the official English language version of EN 13351:2. It partially supersedes BS 5W1: 1980 which has already been withdrawn. This
3、Standard includes a National Informative Annex which gives guidance for users to assist in identifying the Qpe of chair which will comply with the European Display Screen Equipment Directive. The UK participation in its preparation was entrusted to Technical Committee FWB, ce furniture, which has th
4、e responsibility to: - aid enquirers to understand the text; - present to the responsible European committee any enquiries on the - monitor related international and European developments and promulgate inteqretation, or proposais for change, and keep the UK interests informed; them in the UK. A lis
5、t of organizations represented 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 entitJed “internafion
6、al Standards Correspondence 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
7、 Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 23 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. This
8、 British Standard, having been prepared under the direction of the Consumer Products and Services Sector Commitee, was published under the authority of the Standards Committee and comes into effect on 15 July 2000 O BSI 07-2000 ISBN O 580 34649 8 STD-BSI BS EN 1335-1-ENGL 2000 I 1b24bb9 08bO4LB 596
9、W EUROPEAN STANDARD EN 1335-1 NORME EUROPENNE EUROPISCHE NORM April 2000 ICs 97.140 English version Office furniture - Office work chair - Part 1 : Dimensions - Determination of dimensions Mobilier de Bureau - Siges de travail de bureau - Partie 1: Dimensions - Dtermination de dimensions Brombel - B
10、uro-Arbeitsstuhl - Teil 1: Mae - Bestimmung der Mae This European Standard was approved by CEN on 12 December 1999. CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any
11、aiteration. Up-to-date lists and bibliographical references concerning sich national standards may be obtained on application to the Centrai Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by t
12、raislation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as tie official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Irela
13、nd, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Central Secretariat: rue de Stassart, 36 8-1050 Brussels O 2000 CEN All rights of exploitation in
14、any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1335-1:2000 E Page 2 EN 1335-1 2000 Contents Page Foreword 2 . Introduction 3 . 1 Scope 3 . 4 Dimensions 7 5 Determination of reference points 7 . 6 Determination of dimensions 8 . Annex A (noative) Dimensional requir
15、ements 18 Annex B (informative) A-deviations 20 Annex NA (informative) National Guidance 23 Foreword This European Standard has been prepared by Technical Committee CENlTC 207, Furniture, the Secretariat of which is held by IBN. This European Standard shall be given the status of a national standard
16、, either by publication of an identical text or by endorsement, at the latest by October 2000, and conflicting national standards shall be withdrawn at the latest by October 2000. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bo
17、und to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. This series consists of the following parts: prEN 1335-1:1999 p
18、rEN 1335-2:1999 Office furniture - Office work chair - Part 1: Dimensions, determination of dimensions Office furniture - Office work chair - Part 2: Safety requirements prEN 1335-3:1999 Office furniture - Office work chair - Pari 3: Safety test methods O BSI 07-2000 STDOBSI BS EN L335-L-ENGL 2000 =
19、 lb24bb9 08b0420 i144 m Page 3 EN 1335-1 12000 introduction This standard is part of a series of product standards for office chairs including the following types: o Office work chair 0 Visitors chair General The working conditions and the protection of office workers with respect to safety and heal
20、th necessitates - when necessary - that these standards take ergonomic principles and minimum requirements into account. This applies in particular to the design of Visual Display Equipment (VDU) work stations where a EU Directive (90/270/EEC) has been implemented. These work stations should be desi
21、gned to allow different users to carry out a variety of work tasks. The design of furniture and the work station should, therefore, take into account both the variety of work tasks and the needs of the users. The design of work procedures, work stations and furniture should ensure that the user can
22、move his or her body and limbs frequently in order to avoid muscle stress. Basis of dimensions and reference seating posture The dimensions in this standard are based on the conflicting requirements of anthropometric measurements, mechanical design, subjective preference and other factors. In genera
23、l, they should be suitable for people between 1 510 mm and 1 920 mm in body height. People with body height outside this range may need furniture of different dimensions or a footrest. Due to the variation in population heights in different countries, there will be a variation in the percentage of t
24、he office population which the dimensions will accommodate in each country. In order to be able to specify acceptable dimensional requirements, a theoretical reference seating posture has been adopted. This posture does, however, not automatically correspond to the ideal or optimum seating posture.
25、The reference seating posture is as follows: 0 0 0 0 0 0 0 The trunk is erect. The sole of the foot placed on the floor. The foot forms an angle of approximately 90“ with the lower leg. The lower leg is approximately vertical. The lower leg forms an angle of approximately 90“ with the thigh. The thi
26、gh is almost horizontal. The thigh forms an angle of approximately 90“ with the trunk. 1 Scope This pari of the prEN 13351 999 applies to office work chairs. It specifies dimensions of three types of chairs as well as test methods for their determination. O BSI 07-2000 STD=BSI BS EN 1335-L-ENGL 2000
27、 m Lb24bb OBb042L O80 Page 4 EN 1335-1 :2000 2 Normative references This European Standard incorporates by dated or undated reference, provision from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated re
28、ferences, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). prEN 1335-3:1999 Office furnitu
29、re - Office work chair - Part 3: Safety test methods 3 Terms and definitions For the purposes of this standard, the following terms and definitions apply: 3.1 Office work chair: a piece of seating furniture for one person, with a back rest, with or without arm rests. The upper part of the chair, whi
30、ch includes the seat, can rotate in the horizontal plane and can be adjusted in height. There are three types A, B and C. 3.2 Axes of rotation: the vertical axis around which the upper part of the chair rotates (see figure I). 3.3 Point “A“: the point in which the chairs axes of rotation intersects
31、with the seat surface loaded by a 64 kg dummy (see figures I and 2). 3.4 Median plane: the vertical plane passing through point “A and dividing the chair into two generally symmetrical parts (see figure 1). 3.5 Transverse plane: the vertical plane passing through point “A“ perpendicular to the media
32、n plane (see figure 1). 3.6 Back supporting point “S“: non tiltable back rest: The foremost point on the back rest in the median plane between 170 mm and 220mm above point “A“ (see figure 3 a). tiltable back rest: The foremost point on the back rest in the median plane which intersects the vertical
33、line 400 mm from the front edge of the seat when the back rest is tilted forward from the rearwards position (see figure 3 b). Q BSI 07-2000 STD=BSI BS EN L335-l-ENGL 2000 = lb24bb9 OBb0422 T17 a / if / Page 5 EN 1335-1 :2000 C a Transverse Plane b Axis of Rotation c Median Plane Figure 1 - Diagram
34、of reference points, axes and planes O BSI 07-2000 STD*BSI BS EN L335-L-ENGL 2000 lb24bb9 Ob0423 953 Page 6 EN 1335-1 12000 A-A Components: 1 Wooden component (or similar material) 2, 3 4 Guide shafl 5 Movable mass (e.g. steel) Main mass (e.g. lead or force) Mass of 1 = 4 kg components: 5 = 15 kg 2+
35、3+4 1+2+3+4+5 =64kg = 45 kg (centre of gravity in the axes of the guide shaft) Figure 2 - Dummy Q BSI 07-2000 - STD-BSI BS EN 1335-1-ENGL 2000 = Lb24bb9 0860424 8T m Page 7 EN 1335-1 :2000 / Figure 3 - Back supporting point “S“ 4 Dimensions The chair shall provide support to the thighs and the lumba
36、r region with sufficient depth and height to provide all users with a sitting position suited to their activity and their height. The dimension of the chair shall comply with one of the types of annex A. An exception is made in the case of the stability dimension t, provided that the chair passes th
37、e rearwards stability tests according to 5.4.2 and 5.4.3 of prEN 1335-3:1999. 5 Determination of reference points The chair shall be positioned on a flat, rigid and horizontal test surface. 5.1 Point “A“ The dummy (see figure 2) shall be placed on the seat surface symmetrically to the median plane i
38、n such a way that the centre of gravity of the main mass coincides with the axis of rotation. The seat shall be set as close as possible to the horizontal and the back rest shall be set as close as possible to the vertical. The movable mass shall be positioned so that the lower edge of the groove co
39、incides with the vertical line tangential to the front edge of the seat. Before measuring, the seat shall be loaded and unloaded five times for a short period. 5.2 Back supporting point “S“ In the case of chairs with a back rest rotatable around a horizontal axes the upper and lower edges of the bac
40、k rest shall be positioned vertically one above the other midway in the median plane before measurements are made. If this is not possible the closest possible position to it shall be chosen. O BSI 07-2000 _ STD-BSI BS EN 1335-1-ENGL 2000 1b24bbS 08b0425 72b Page 8 EN 1335-1 12000 6 Determination of
41、 dimensions The chair shall be positioned on a flat, rigid and horizontal test surface. The seat shall be set as close as possible to the horizontal and the back rest shall be set as close as possible to the vertical. Linear dimensions shall have an accuracy of I2 mm and all angles an accuracy of +I
42、“. Unless otherwise specified, all dimensions shall be measured without loading at the measurement point. Where point “A is used as reference point the seat shall be loaded by the dummy in accordance with 5.1 All adjustable dimensions and angles shall be measured both in the smallest and largest pos
43、ition. 6.1 Seat height a The seat height a is the vertical distance between the floor and the point “A (see figure 4). l I NOTE: The height is determined by measurement, either at the front edge of the seat in combination with the slope of the dummy or directly at point “A. Figure 4 - Determination
44、of the seat height a Q BSI 07-2000 STD*BSI BS EN 1335-1-ENGL 2000 M Lb24bb9 OBb042b bb2 aii Page 9 EN 1335-1 :2000 6.2 Seat depth b The seat depth b is the horizontal distance from the front edge of the seat to the vertical projection of the back supporting point “S“, measured in the median plane (s
45、ee figure 5). Before determining the seat depth of chairs with height adjustable back rests, the back supporting point “S“ shall be set at a height of 220 mm above point “A“ (see figure 9). If the seat depth and back rest are adjusted simultaneously, .e. when the seat depth is increased, the back re
46、st height is automatically increased, the minimum seat depth shall be measured with back rest in its lowest position, and the maximum seat depth with the back rest in its highest position. IA Figure 5 - Determination of the seat depth 6 O BSI 07-2000 STD-BSI BS EN L335-L-ENGL 2000 Lbi4bb9 0860427 5T
47、9 Page 10 EN 1335-1 :2000 6.3 Depth c of seat surface The depth c of seat surface is the maximum horizontal distance between vertical lines through the front and rear edges of the seat surface (see figure 6 a). If the shape of the seat makes it impossible to define a rear edge, the maximum horizonta
48、l distance shall be measured from the rear of the seat surface below the back supporting point “S“ (see 3.6) to the front edge of the seat surface (see figure 6 b). The measurement shall be carried out with the back rest set to the forward tilt. a) b) Figures 6 - Determination of the depth c of seat
49、 surface 6.4 Seat width d The seat width d is the horizontal distance between vertical lines through the side edges of the seat surface measured in the transverse plane (see figure 7). Figure 7 - Determination of the seat width d Q BSI 07-2000 STD-BSI BS EN 1335-1-ENGL 2000 W 1b24bb9 0860428 435 = Page 11 EN 1335-1 :2000 6.5 Inclination e of seat surface The inclination e of the seat surface is the angle in the median plane between the lower edge of the dummy and a horizontal line. Rearwards slope is designated “-“
