1、_6$(7HFKQLFDO6WDQGDUGV%RDUG5XOHVSURYLGHWKDW7KLVUHSRUWLVSX EOLVKHGE6$(WRDGYDQFHWKHVWDWHRIWHFKQLFDO and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, LVWKHVROHUHVSRQ
2、VLELOLWRIWKHXVHUSAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions.Copyright 2017 SAE InternationalAll rights reserved. No part of this publication may be reproduced, sto
3、red in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE.TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada)Tel: +1 724-776-4970 (outside USA)Fax: 724-776-0790Ema
4、il: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedback on thisTechnical Report, please visithttp:/standards.sae.org/J167_201701SURFACE VEHICLESTANDARDJ167JAN2017Issued 1970-07Reaffirmed 2017-01Superseding J167 APR2011Overhead Protection for Agricultura
5、l Tractors -Test Procedures and Performance RequirementsRATIONALESAE J167 has been reaffirmed to comply with the SAE five-year review policy.1. ScopeThis SAE Standard applies to an overhead cover installed on a protective frame or enclosureconforming to SAE J2194 or alternately SAE J1194 and the fol
6、lowing additional requirement of a drop test toverify the effectiveness of the overhead cover in protecting the operator from falling objects.The test procedures and performance requirements outlined in this document are based on currently availableengineering data.1.1 PurposeThis document establish
7、es test and performance requirements for overhead protection to minimizethe frequency and severity of operator injury due to falling objects encountered in normal operation of awheeled agricultural tractor.2. References2.1 Applicable PublicationsThe following publications form a part of this specifi
8、cation to the extent specifiedherein.2.1.1 SAE PUBLICATIONSAvailable from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.SAE J1150 JUN88Terminology for Agricultural EquipmentSAE J2194 DEC87Roll-Over Protective Structures (ROPS) for Wheeled Agricultural Tractors2.1.2 ISO PUBLICATIONSAvailable
9、 from ANSI, 25 West 43rd Street, New York, NY 10036-8002.ISO 3462Tractors and machinery for agriculture and forestrySeat reference pointMethod ofdeterminationISO 3463Agricultural and forestry wheeled tractorsProtective structuresDynamic test methods andacceptance conditions2.2 Related PublicationsTh
10、e following publications are provided for information purposes only and are not arequired part of this document.2.2.1 SAE PUBLICATIONSAvailable from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.SAE J231 JAN81Minimum Performance Criteria for Falling Object Protective Structure (FOPS)SAE J10
11、43 SEP87Performance Criteria for Falling Object Protective Structure (FOPS) for IndustrialMachinesSAE J1194 MAY89Roll-Over Protective Structures (ROPS) for Wheeled Agricultural Tractors2.2.2 ISO P UBLICATIONSAvailable from ANSI, 25 West 43rd Street, New York, NY 10036-8002.ISO 5700Agricultural and f
12、orestry wheeled tractorsProtective structuresStatic test method andacceptance conditions3. Definitions3.1 An Agricultural Tractoris defined in 3.1.1 of SAE J1150.3.2 Seat Reference Point (SRP)is defined in accordance with ISO 3462 and referenced in paragraph 3.5 ofSAE J2194.4. DescriptionThis docume
13、nt applies to an overhead cover extending above and over the operators seat asmounted on a protective frame conforming generally to Figure 1.FIGURE 1TRACTOR WITH TYPICAL OVERHEAD FRAME AND OVERHEAD COVER5. Specifications for Overhead CoverThe overhead cover may be constructed of a solid material. If
14、 grid ormesh is used, the largest permissible opening shall be such that a 38 mm diameter circle is the maximumcircle that can be inscribed between the elements of grid or mesh.SAE INTERNATIONAL J167 JAN2017 2 OF 36. Test Procedures6.1 Drop Test Procedure6.1.1 The overhead cover shall be subjected t
15、o a drop test using a solid steel sphere or material of equivalentproperties and spherical dimension with a mass of 45.4 kg dropped once from a height of 3050 mm abovethe overhead cover.6.1.2 The point of impact shall be on the overhead cover at a point above the clearance zone which is furthestremo
16、ved from major structural members. (See Figure 2.)FIGURE 2DROP TEST POINT OF IMPACT7. Performance Requirements7.1 General Requirements7.1.1 Performance requirements specified in Sections 6.7, 6.9, and 11.1.1 of SAE J2194 shall apply.7.2 Drop Test Performance Requirements7.2.1 Instantaneous deflection due to impact of the sphere shall not enter the clearance zone as illustrated inFigure 11 of SAE J2194.PREPARED BY THE SAE AGRICULTURAL TRACTOR STANDARDS COMMITTEESAE INTERNATIONAL J167 JAN2017 3 OF 3
