1、SAE-J899ADOPTION NOTICESAE-J899, “WORK MACHINES, OFF-ROAD SELF-PROPELLED, OPERATORSSEAT DIMENSIONS FOR“, was adopted on 03-OCT-94 for use by theDepartment of Defense (DoD). Proposed changes by DoDactivities must be submitted to the DoD Adopting Activity: USArmy Communications Electronic Command, CEC
2、OM Logistics andReadiness Center, Attn: AMSEL-LC-CCS-P-GB, 10115 Gridley Road Ste228, Ft. Belvoir, VA 22060-5849. Copies of this document may bepurchased from the Society of Automotive Engineers 400Commonwealth Drive Warrendale, Pennsylvania, United States,15096-0001. http:/www.sae.org/_Custodians:
3、Adopting Activity:Army - CR4Army - CR4Navy - SAAir Force - 99Reviewer Activities:Air Force - 84AREA HFACDISTRIBUTION STATEMENT A: Approved for public release; distributionis unlimited.SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical
4、 and engineering sciences. The use of this report is entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time
5、 it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions.QUESTIONS REGARDING THIS DOCUMENT: (724) 772-8512 FAX: (724) 776-0243TO PLACE A DOCUMENT ORDER; (724) 776-4970 FAX: (724) 776-0790SAE WEB ADDRESS http:/www.sae.orgCopyright 1988 Society of Automotive Engi
6、neers, Inc.All rights reserved. Printed in U.S.A.SURFACEVEHICLE400 Commonwealth Drive, Warrendale, PA 15096-0001STANDARDSubmitted for recognition as an American National StandardJ899REV.DEC88Issued 1964-08Revised 1988-12Superseding J899 OCT80OPERATORS SEAT DIMENSIONS FOR OFF-ROAD SELF-PROPELLED WORK
7、 MACHINESNOTE: This Standard is similar to ISO 4253.ForewordThis Document has not changed other than to put it into the new SAE Technical Standards BoardFormat.1. ScopeFor off-road work machines as listed in SAE J1116.1.1 PurposeThis SAE Standard provides seat dimensions and adjustments for the desi
8、gn of operators seat.2. References2.1 Applicable PublicationsThe following publications form a part of the specification to the extent specifiedherein. Unless otherwise indicated the latest revision of SAE publications shall apply.2.1.1 SAE PUBLICATIONSAvailable from SAE, 400 Commonwealth Drive, War
9、rendale, PA 15096-0001SAE J826 MAY87Devices for Use in Defining and Measuring Vehicle Seating AccommodationSAE J833 DEC83USA Human Physical DimensionsSAE J1116 JUN86Categories of Off-Road Self-Propelled Work MachinesSAE J1163 JAN80Determining Operator Seat Location on Off-Road Work Machines2.1.2 ISO
10、 PUBLICATIONSAvailable from ANSI, 11 West 42nd Street, New York, NY 10036-8002.ISO 4253-1977Agricultural tractorsOperators seating dimensionsISO 5353-1978Earthmoving machinerySeat index point2.1.3 HENRY DREYFUSS ASSOCIATESHumanscale2.1.4 DAMON, STOUDT, MCFARLANDThe Human Body in Equipment DesignSAE
11、J899 Revised DEC88-2-3. Discussion3.1 All seat dimensions and adjustments (if provided), are referenced to the SIP as determined by SAE J1163.3.2 Nominal values (see Note 1, of Table 1, for definition) are included wherever possible and their use willgenerally provide maximum ergonomic benefit.TABLE
12、 1SEAT DIMENSIONS AND ADJUSTMENTSItem Description (See Figure 1) Notes Max(1)mm1. Where no maximum value is listed, the nominal value may be increased arbitrarily.Nom(2)mm2. A value which might have the broadest general acceptance.Min mmB Seat Cushion Length 315 265 215C Seat Cushion - Angle (3)3. A
13、ngle of the top of the seat base of the SIP device after being positioned and weighted using the SAE J1163 procedure.15 deg 10 deg 5 deg- Adjustment (4)4. Angle adjustment, if provided, is about the mid-position, not necessarily a latched position. 5 deg 3 degD Seat Cushion Width 500 430E Fore and A
14、ft Adjustment (5)5. Adjustment values are total adjustments. 150 100F Vertical Adjustment (5) 75 60G Back Cushion Height (6)6. Where free swing of shoulders and arms over the top of the back is necessary or appropriate for visibility when traveling in the reverse or when controlling rear mounted imp
15、lements, the maximum back cushion height should be 300. 400 150H Back Cushion Width (7)7. Where free aft swing of the elbows is desired, the maximum width should be 330. 500 300J Back Cushion Angle (8)8. Measure the angle of the centerline of the back cushion. If a lumbar support is provided, it sho
16、uld be set at the mid-range position, and the back angle measured on centerline of the back cushion above the lumbar support. For back cushions with the lumbar support, the allowable angles of Table 1 may be increased by 5 deg or more.15 deg 10 deg 5 deg- Adjustment (4) 5 deg 3 degK Armrest Height (
17、9)9. Armrests attached to the seat should move with the vertical and horizontal seat adjustments. The ability to adjust the armrests vertically to the maximum-minimum values of (K) is desirable. (K) is measured to the top of the pad (if used) at the lateral centerline of the armrest.160 140 95L Armr
18、est Length 190 140 90M Armrest Lateral Spacing 550 500 450N Armrest Width 75 50P Armrest Depth 100 50Q Lumbar Support (10)10. Radius of curvature of the lumbar support in the vertical plane should be nominally 300 with a minimum of 150.145 130 115SAE J899 Revised DEC88-3-FIGURE 1SEAT DIMENSIONS AND
19、ADJUSTMENTS3.3 The nominal values are based on the body dimensions of SAE J833 and will accommodate operator sizes fromthe 5th percentile female through the 95th percentile male of that document. Dimensions or adjustments (oruse of), other than those in this standard may be used if they will provide
20、 equivalent or greater ergonomicbenefit. Consideration may be given for specific controls or operator requirements (that is, smaller worldwidepopulation body dimensions, etc.).3.4 On work machines where a higher SIP is desirable, a reduced back and seat cushion angle should beconsidered.3.5 Armrests
21、 can be rotated up or down or translated down to provide ingress or egress.SAE J899 Revised DEC88-4-3.6 Operator seats can be provided with a swivel or tilt pivot to improve both operator work position and ingress oregress.3.7 A means of securing the work positions of the seat shall be provided to p
22、revent unwanted seat movementduring operation.3.8 On the initial design of the seat or operator area, good use can be made of the two-dimensional mannequin ofSAE J826 for approximate H-Point/SIP location.4. Notes4.1 Marginal IndiciaThe change bar (l) located in the left margin is for the convenience
23、 of the user in locatingareas where technical revisions have been made to the previous issue of the report. An (R) symbol to the leftof the document title indicates a complete revision of the report.PREPARED BY THE SAE HUMAN FACTORS TECHNICAL COMMITTEE SC 4SAE J899 Revised DEC88Rationale1. Result of
24、 the 5 Year Review of all practices.2. This recommended practice has been changed to a standard due to minimum requested changessince 1980.3. All dimensions per SAE objective are given in metric only.4. All references to SAE documents in the text or references reflect the latest version.5. Reference
25、 to H point omitted in order to standardize on the use of SIP.6. Scope - identifies the machines affected by referencing SAE J1116.7. Removed unneeded SAE callouts and references (Ref. 3, 4, 5, 7 and 10) and properly identify theother SAE references.8. Eliminated dimension (A), SIP to heel rest and
26、all references to it, because SAE J899 dimensionsare related to the SIP and not the heel rest or other parts of the machine.9. Broadened the designers opportunity to accommodate unique control systems and provide goodergonomic possibilities by increasing the maximum height of the armrest (K) to 160
27、mm. Theexisting upper limit dimension, which favored more reclined or relaxed working positions restrictedthe designer of machines needing positive support for control operation or erect working position.Dreyfuss Humanscale 1/2/3 (page 21 and measurements of Male and Female - page 1518) wasused for
28、the nominal dimension of 140 mm and Damon-Stoudt-McFarland, the Human Body inEquipment Design (pages 78, 80 and 92) for the upper and lower limit. These maximum andminimum limits assumed a 25 mm slump which is justified to avoid too high an armrest.10. Dimensional changes reflect a correlation betwe
29、en Dreyfuss, Damon-Stoudt-McFarland and SAEJ833. It should be recognized that body data as in SAE J833 is for nude, erect sitting people andneeds to be modified. Dreyfuss and Damon-Stoudt-McFarland treat more directly to the real worlddimensions for the designers use. The data for womens shoulder he
30、ight to seated surface in SAEJ833 does not compare to Damon-Stoudt-McFarland (although the male information was the same)and; therefore, the womens data was not used to develop the values.11. For the limits of armrest height adjustment, use of the maximum and minimum values of K areencouraged. Clari
31、fication of where dimension (K) is to be measured has been included.12. Editorial changes include revising chart format to make reference to notes easier, rewording of note(6) and wording changes to convert the recommended practice to a standard.Relationship of SAE Standard to ISO StandardThis stand
32、ard is similar to ISO 4253.ApplicationThis SAE Standard provides seat dimensions and adjustments for the design of operators seat.Reference SectionSAE J826 MAY87Devices for Use in Defining and Measuring Vehicle Seating AccommodationSAE J833 DEC83USA Human Physical DimensionsSAE J1116 JUN86Categories
33、 of Off-Road Self-Propelled Work MachinesSAE J1163 JAN80Determining Operator Seat Location on Off-Road Work MachinesISO 4253-1977Agricultural tractorsOperators seating dimensionsISO 5353-1978Earthmoving machinery seat index pointSAE J899 Revised DEC88HumanscaleHenry Dreyfuss AssociatesThe Human Body in Equipment DesignDamon, Stoudt, McFarlandDeveloped by the SAE HFTC/Subcommittee 4Sponsored by the SAE Human Factors Technical Committee
