SAE J 2092-1995 Testing of Wheelchair Lifts for Entry to or Exit from a Personally Licensed Vehicle.pdf

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1、SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefro

2、m, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions.TO PLACE A DOCUMENT ORDER: (724) 776-4970 FAX: (724) 776-0790SAE WEB ADDRESS http:/www.s

3、ae.orgCopyright 1999 Society of Automotive Engineers, Inc.All rights reserved. Printed in U.S.A.SURFACEVEHICLE400 Commonwealth Drive, Warrendale, PA 15096-0001RECOMMENDEDPRACTICESubmitted for recognition as an American National StandardJ2092REAF.NOV1999Issued 1995-05Reaffirmed 1999-11Superseding J20

4、92 MAY1995Testing of Wheelchair Lifts for Entry to or Exitfrom a Personally Licensed Vehicle1. ScopeThis test procedure is for Qualification Testing of electrically powered hydraulic or mechanicallyoperated devices which permit a person in a manual or powered wheelchair to enter or exit a personally

5、licensed vehicle.It establishes minimum test requirements for compliance. A lift completing the test without failure under thisprocedure shall be considered in compliance. The tests in Section 3 shall be done in the sequence listed.1.1 SAE J2093 is the recommended practice to which this test procedu

6、re is applicable.2. References2.1 Applicable PublicationsThe following publications form a part of this specification to the extent specifiedherein. The latest issue of SAE publications shall apply.2.1.1 SAE PUBLICATIONSAvailable from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.SAE J211-1

7、Instrumentation for Impact TestPart 1: Electronic InstrumentationSAE J211-2Instrumentation for Impact TestPart 2: Photographic InstrumentationSAE J2093Design Considerations for Wheelchair Lifts2.1.2 ASTM PUBLICATIONAvailable from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.ASTM D 1

8、005-51Measurement of Dry Film Thickness of Organic Coatings2.1.3 FMVSS PUBLICATIONAvailable from the Superintendent of Documents, U.S. Government Printing Office,Washington, DC 20402-9371.FMVSS 302Flammability of Interior Materials3. Receiving Inspection TestA receiving inspection shall be conducted

9、 and shall include:3.1 Weigh the lift and all installation hardware. The total weight shall not exceed 400 lb.3.2 A visual inspection of the lift and furnished materials to assess compliance with standards for writteninformation.SAE J2092 Reaffirmed NOV1999-2-3.2.1 The manufacturers literature shall

10、 be examined for information about the lift platform and roll stopdimensions. (SAE J2093, 6.4)3.2.2 A visual inspection to determine the inclusion of the required owners manual. The manual shall includeinstructions concerning user operation and required or recommended maintenance to be performed by

11、theuser, owner, or dealer. The maintenance instructions shall address at least the following areas: operation,lubrication, (types, frequency, and location) adjustments, calibration and alignment procedures, troubleshooting, parts lists, components requiring special attention and the name, address, a

12、nd telephone numberof the manufacturer or his representative.In addition, instructions for the use of dual batteries, if applicable, and threshold warning systems shall beincluded.3.2.3 A visual inspection shall be made to determine the inclusion of all electrical and hydraulic schematicdiagrams nec

13、essary to properly maintain the lift.3.2.4 Each lift shall be inspected for the inclusion of the required identification tag, evidence of manufacturersquality control inspection, and for inclusion of the required warranty statement.3.2.5 FLAMMABILITYA visual inspection will be made of documentation

14、from the manufacturer to insure astatement that FMVSS 302 for flammability has been met for all nonmetallic lift components such asprotective coverings, housings, and paddings.3.2.6 VEHICLE ALTERATIONSThe lift, the installation instructions, and the installation hardware shall be visuallyinspected t

15、o ensure that no vehicle alternations are required which would diminish the structural integrity ofthe vehicle.3.2.7 A visual inspection shall be made of documentation from the manufacturer to insure there exists a failuremode analysis identifying all single point failures.4. Visual Inspection of In

16、stalled Lift4.1 Lift shall be installed in a test fixture per manufacturers instructions using the installation hardware furnishedwith the lift.4.1.1 The test fixture need not be a replica or part of a van door but should be sufficiently similar in size andconfiguration to allow installation per the

17、 manufacturers installation instructions using the hardware suppliedwith the lift.4.1.2 The test fixture shall have a small vertical surface nearby to allow installation of the external switches usingthe manufacturers hardware.4.1.3 The test fixture should have a horizontal panel nearby to allow ins

18、tallation and testing of the thresholdwarning system.4.2 Each lift and its installation hardware will be visually inspected to assess its conformance with applicablestandards.4.2.1 ELECTRICAL COMPONENTS (SAE J2093, 5.1)4.2.2 CHAIN DRIVE COMPONENTS (SAE J2093, 5.2)4.2.3 HYDRAULIC COMPONENTS (SAE J209

19、3, 5.3)SAE J2092 Reaffirmed NOV1999-3-4.2.4 POWER SCREW COMPONENTS (SAE J2093, 5.5)4.2.5 FASTENERS (SAE J2093, 5.6)4.2.6 CONTROLS (SAE J2093, 6.1)4.3 Weldment InspectionA visual inspection shall be made of all welds to detect structural flaws such asundercutting, cracking, poor penetration, and surf

20、ace defects. Dimensional flaws such as warpage, incorrectweld size or profile, and incorrect joint separation shall be observed. Nondestructive testing usingradiographic, ultrasonic, dye penetrant, or other methods may be conducted to verify visual findings.Significant defects shall disqualify the l

21、ift from compliance.4.4 Occupant Hazards TestThe fully assembled and installed wheelchair lift shall be carefully inspected withregard to safeguards, sharp edges, projections, unprotected shear and pinch points, and dirty or greasysurfaces with which the occupant might come in contact during normal

22、operation of the lift.4.5 Slip Resistance TestThe wheelchair platform shall be inspected for utilization of slip-resistant surfaces onwhich the wheelchair rolls.4.6 Lift Dimensional Measurements4.6.1 Measure the lift platform, the vertical height of the roll stop and the minimum height and width of

23、the accesspath to see that they correspond to that provided in the literature and placards.4.6.2 Lift and installation hardware shall be measured and compared to the relevant dimensions of the vehicles forwhich it is intended to assure 1/4 in clearance from the edge of the door opening.4.7 Single Po

24、int FailureThe lift shall be inspected to detect any single point failure which would constitute ahazard to the user (SAE J2093, 4.2).4.8 Electrical HazardsThe lift, as installed, shall be inspected to detect any aspects of the design which fail toprotect the driver or passenger(s) against injuries

25、resulting from short circuits, electrical fires, or other suchincidents.4.9 Circuit BreakerThe lift shall be inspected to ensure that a suitable circuit breaker or other device has beendesigned into the power circuit close to the battery connection. A solenoid or other device may beincorporated, per

26、 the manufacturers instructions, into the power circuit to insure that no voltage is applied tothe main power unit until a lift-operating control is activated.4.10 Hydraulic HosesThe lift shall be inspected to detect any hoses which are not protected from bearing orrubbing on structural components.4

27、.11 Load DistributionThe lift shall be inspected to ensure that the lift does not apply any load to the wheelchairwhich is contrary to the normal load characteristics of the structural design of the wheelchair.4.12 Vandal ProtectionThe lifts external controls shall be inspected to determine that the

28、y are protected frommisuse or vandalism by the use of key locks, key switches, or other security systems.4.13 MaintainabilityThe maintenance procedures prescribed by the manufacturer in SAE J2093, 8.1 shall beperformed (using documents provided (SAE J2093, 8.3) to ascertain compliance with SAE J2093

29、, 8.4 andSAE J2093, 8.5. These procedures may be performed as a part of the maintenance needed in the AcceleratedLift Cycle portion of this Test Procedure (see 6.1).SAE J2092 Reaffirmed NOV1999-4-4.14 Wire Rope System TestAn inspection of the wire rope system shall be made to ensure compliance withs

30、tandards specified in SAE J2093, 5.4. This inspection shall include measurement of the nominal diameters ofrope, sheaves, and drum. The fleet angle between the lead sheave and drum and between sheaves at allplatform positions shall be measured. Attachments and fittings shall be inspected for complia

31、nce. The travelof the rope during all lift movements shall be followed to observe possible rope contact with structuralmembers.4.15 ComplianceRefer to Section 7.5. Specification Tests5.1 Control Switch TestsControl switches and circuits shall be tested for conformity with the operationalrequirements

32、 of SAE J2093, 6.1. Any nonconformance to be noted.5.2 Water Spray TestThe exposed portions of electrical components intended for installation external to thevehicle will be subjected to a 5 min, fine droplet water spray test in which the droplets contact the componentsboth vertically and horizontal

33、ly. The wetted components will be allowed to air dry for approximately 3 min andthen the circuits will be electrically checked for successful operation.5.3 Electrical Current TestElectrical current flow will be measured for each lift movement. The ammeter usedwill be of laboratory quality with appro

34、priate shunts. Only steady-state current, ignoring momentary surges, willbe recorded using a SAE J211 class 60 filter.5.4 Platform Angle TestWith the lift installed according to the procedure in 4.1. The lift when unloaded shouldbe adjusted to manufacturers specifications at the level of the vehicle

35、 floor. The platform shall then have aload of 600 lb placed upon it in the same manner as noted in 6.1. Measure the platform to determine that theslope does not change more than 3.6 degrees in any plane (or 0.75 rise to 12 in of run). When this test hasbeen completed, the lift should be reset to the

36、 platform angle, if any, recommended by the manufacturer for theremainder of the tests.5.5 Finish Coating TestAn inspection of the coating will be made to include, but not be limited to, overallappearance and existence of a dull, matte surface finish. Measurements of film thickness shall be made in

37、atleast three locations using a dial comparator or dial indicator as described in ASTM D 1005-51. A subjectiveevaluation of coating adherence will be obtained in at least three locations as follows: use a machinists scribeto scribe a single line approximately 1 in long with sufficient force to penet

38、rate to the base metal. Lay on a stripof transparent mending tape and burnish the scribed area for approximately 15 s with a smooth-ended metaltool. Pull the tape off with a quick, perpendicular motion. A very thin line of coating particles is indication ofgood adhesion. Upon completion of the Accel

39、erated Life Cycle Test and the Operational Safety Test, anotherinspection will be made to determine long-term wear and use characteristics of the coating.5.6 Acceleration TestAccelerations in all planes (vertical, lateral, and horizontal) will be measured inaccordance with SAE J211 using frequency c

40、lass 1000 accelerometers during the entire life cycle.Accelerometers shall be mounted at the center of the lift platform at surface level. A weight of 1780 kg (600 lb)shall be placed on the lift at the center of the platform during acceleration measurements. Acceleration signalsshall be filtered usi

41、ng a frequency class 8 filter with either manual or automatic operation. The filteredacceleration in any direction shall not exceed 0.3 g during any operation motion of the lift platform.5.7 Slope Dimension TestThe empty platform will be lowered to the ground position with the roll stop at itsentry/

42、exit position. Linear measurements of rise and run will be made. Likewise, any step over which thewheelchair must roll will be measured to determine that the dimensions specified in SAE J2093, 6.3 are notexceeded.SAE J2092 Reaffirmed NOV1999-5-5.8 Test for Openings in PlatformThe platform will be po

43、sitioned at ground level and at van floor level, and allopenings therein will be tested with a metal ball of 19.1 mm (3/4 in) diameter for oversize dimensions of theopenings.5.9 Operational Safety TestThe fully assembled and installed wheelchair lift shall be operated by both able-bodied and disable

44、d persons in the manner specified in the Operating Instructions, and observations made asto whether the lift can be operated with minimum potential for injury.5.9.1 Observation shall be made of the floor level stop position as to safe entry/exit of the wheelchair into/out of thevan and to assure tha

45、t the 5/8 in maximum step height is achieved (SAE J2093, 6.5).5.9.2 OCCUPATIONAL HAZARDS INSPECTIONThe fully assembled and installed wheelchair lift shall be carefullyinspected with regard to safeguards, sharp edges, projections, unprotected shear and pinch points, and dirtyor greasy surfaces with w

46、hich the occupant might come in contact during normal operation.5.10 Wheelchair Retaining TestBlock the roll stop open and measure the operation of the roll stop interlock toassure that it does not allow the outboard end of the lift to travel more than 6 in above the ground plane. If thelift is a se

47、mi-automatic lift with a manually operated roll stop, operate the roll stop to assess application andrelease mechanisms for essential clarity of operation.Test equipment will be constructed to fit each wheelchair retaining device. The equipment will apply a staticload of 1600 lb at a height of 2.5 i

48、n above and parallel to the wheelchair ground plane, evenly distributed overthe full width of the roll stop device. In cases where the roll stop device falls at or above 2.5, in the load shallbe applied as close as possible to 0.5 in above the bottom edge of the roll stop as indicated previously.The

49、 load will be applied to the stop device for at least 5 s with the lift platform at the van floor level and also willbe applied as the lift platform ground plane moves down. A load of 600 lb will be on the lift during the test if thewheelchair retaining operation is dependent on such a load for its proper operation.5.11 Threshold Warning TestA four-wheeled wheelchair with a 50 lb load shall be rolled across the access areato the lift up to what would be the edge of the van floor with the lift platform at van floor level. This conditionshould n