qct633-2000标准（英文版）

QC /T 633-2000ForewordThis standard is made according to the current national and industrial standards related to coach seats by combining and revising GB/T 13057-91 (Dimensions for Coach Drivers Seat), GB/T 13058-91 (Technical Conditions for Coach Drivers Seat), GB/T 13059-91 (Dimensions for Coach Passengers Seat) and GB/T 13060-91 (Technical Conditions for Coach Passengers Seat) in compliance with the requirements of cleanup and rectification and new standard system for coaches.In revising this standard, the application scope is modified to cover the drivers seat and passengers seat of M2 and M3 type coaches. Some technical terms are also modified and supplemented including seat height, seat cushion angle, backrest height as well as angle between back and seat cushion. Besides, according to QC/T47-1992 (Technical Terms of Automotive Seat), the original terms “drivers seat” and “adjusting device” are replaced by “driving seat” and “adjuster”. Seat angles and some lengths shall be measured with three dimensional H point machine. To follow the new trend of coaches and seat technology, the air permeability of protective surface material are raised from 0.04m3/m2s to 0.2m3/m2s, and new requirements are put forward for the adjusting torque and adjusting force of seat adjuster. This standard shall take the place of GB/T13057-91, GB/T13058-91, GB/T 13059-91, GB/T 13060-91 as from its effective date. This standard is proposed by State Bureau of Machine-Building Industry. This standard is put under centralized management by National Automotive Standardization Technical Committee.Institutes involved in developing this standard: Jiangsu Transportation Research Institute, Chongqing Highway Research Institute of the Ministry of Communications and Yangzhou Coach Seat Co., Ltd. of Jiangsu Yaxing Motor Coach Group.Main drafters: Jin Mingxin, Chen Yanhua, Xu Nianyuan, Li Feng, Li Tao and Yi Deyin.2China Automotive Industry StandardCoach SeatsSubstitute for: GB/T13057-91GB/T 13058-91GB/T 13059-91GB/T 13060-911 ScopeThis standard specifies the technical requirements, testing methods, inspection rules, marking, packaging, storing and transportation of coach seats. The standard applies to the driving seats and passengers seats of M2 and M3 type coaches, and is not applicable to the foldable seats and mobile seats of these types of coaches.2 Quoted StandardsAs quoted by this standard, the clauses of the following documents have become the clauses of this standard. At time of publication, the editions indicated were all valid. All standards are subject to revision, and parties using this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. GB/T 5453-1985 Test method for air permeability of fabricsGB/T 8410-1994 Burning Characteristics of Automobile Internal Decorating MaterialsGB 11550-1995 Motor vehicles-Seats head restraints-performance requirements and test methods GB/T 11559-1989 Motor vehicles-use in defining their seating accommodations-Three dimensional H point machineGB/T 13306-1991 Vehicle platesGB 14166-1993 Motor vehicles-Safety belt assemblies-Performance requirements and test methodsGB 14167-1993Motor vehicles-Safety belt anchorages GB 15083-1994 Motor vehicles-Seat systems-Strength requirements and test methodsQC/T55-1993 Test methods of dynamic seating comfort for automobile seatsQC/T56-1993 Test methods of gasket material performance for automobile seatsQC/T 484-1999 Automotive paint coatingQC/T 625-1999 Motor vehicles-use plating layer and chemical treating layersJB/T 5943-1991 General technical conditions for welded structure of construction machinery.3 DefinitionsThis Standard employs the definitions prescribed hereafter (Table 1 and Figure 1).Table 1 Terms, Codes and Definitions of Vehicle SeatsOrderTermsCodeDefinition3.1Seat heightH1The height from the top of the seat cushion to the installation level in the median seating plane.3.2Seat depthL1The distance between the vertical tangent line of the frontal seat cushion edge and point G in the median seating plane.3.3Seat cushion widthW1The maximum width of the seat cushion in the vertical plane that passes point R and is perpendicular to the median seating plane.3.4Seat cushion anglelThe angle between the human thigh center line and the horizontal plane in the median seating plane.3.5Backrest heightA1The distance between the backrest top and point G along the reference line parallel to human body in the median seating plane.3.6Backrest widthW3The width of the backrest 270mm from point G along the backrest in the median seating plane.3.7Armrest heightH4The height from the seat armrest top surface to point R.3.8Armrest widthW3The cross width of the top armrest surface.3.9Angle between backrest and seat cushion3The angle between the human body reference line and the human thigh center line in the median seating plane.3.10Backrest angle adjusting range4The adjusting range of backrest angle3.11Seat up-down adjusting rangeH3The vertical displacement between the topmost and bottommost adjusting positions of the seat.3.12Seat back-forth adjusting rangeL2The horizontal displacement between the foremost and backmost adjusting positions of the seat.3.13Seat left-right adjusting rangeW4The horizontal displacement between the rightmost and leftmost adjusting positions of the seat.The human thigh center lineThe human body reference lineFigure 124 Technical Requirements4.1 General Requirements4.1.1 The coach seat (hereafter referred to as seat) shall comply with the specifications of this standard, and be manufactured according to the drawing and technical documents permitted by specified procedure.4.1.2 The seat angle and backrest height shall be measured with three dimensional H point machine, and the seat shall be measured at the designing reference position specified by the manufacturer. See Table 2 for the relevant dimensions.Table 2 Seat DimensionsItemsCodeUnitDriving SeatsPassenger SeatsUrban BusesHighway BusesPrivate BusesSight-seeing BusesSeat height1)H1mm3804601)400450Seat depthL1mm400460350400430Seat cushion widthW1mm450400/8002)420/8602)440/9002)Seat cushion anglel3737Backrest heightA1mm450450700Backrest widthW3mm440480/Armrest heightH4mm/170230Armrest widthW3mm/35Angle between backrest and seat cushion390105939795105Backrest angle adjusting range420For seats with adjustable backrest angle20Seat up-down adjusting rangeH3mm60/Seat back-forth adjusting rangeL2mm100/Seat left-right adjusting rangeW4mm/80Note:1) The height of seat connector (or wheel casing) on the coach floor can be included in the seat height.2) 400800 indicates that single seat400, double seats800, and so forth.4.2 Requirements for materials4.2.1 In the ambient temperature of -3050, seat protective surface, cushion and other non-metal materials should meet the operation requirements.4.2.2 Seat facing material should have flame retarding property, and its combustion behaviors must meet the requirements of 3 in GB 8410-1994.4.2.3 The seat facing material that contacts the human body shall have good air permeability no less than 0.2m2/m2s.4.2.4 No defect like missing welding and incomplete welding is allowed in the welded components of the seat, and the welding quality shall comply with the relevant specifications of JB/T 5943.The seat assembly shall be securely fixed and operate reliably after being assembled.4.2.5 The metal components of the seat shall receive antirust treatment, and the paint coating shall comply with the relevant specifications of QC/T 484, and the galvanized coating layer and chemical treating layer shall comply with the relevant specifications of QC/T 625.4.2.6 The protective surface assembly shall be sewn securely, and no missing seam, opening seam, unstitching or skipped stitch is allowed in the sewn part. The strength of the sewing thread quality and the sewing technique shall not be lower than that of the protective surface material, and no early wearing shall develop in normal operation and testing condition. 4.2.7 When the protective surface assembly is fitted onto the seat, the surface shall be smooth, plump and tidy, and no visible stitch, decolorizing, stain, wearing, wrinkling or scratch is allowed. 4.3 Operation Performance4.3.1 No thin projections that may threaten the safety of passengers shall exist on the seat surface or inside the seat.4.3.2 The seat adjuster shall operate freely and be locked securely, light to operate and without jamming. When the driver or passengers are in the sitting positions, the adjusting torque of the seat angle adjuster shall be no larger than 10Nm, and the adjusting force of the up-down, back-forth and left-right adjuster shall be no larger than 100N.44.3.3 The strength of the seat assembly shall meet the requirements of GB 15083.4.3.4 For seats with head restraints, the head restraint material, structural dimensions and property shall comply with the specifications of GB 11550.4.3.5 For seats equipped with safety belts, the performance of safety belts shall comply with the specifications of GB 11550.When the fitting points are on the seat skeleton, their positions and strength shall comply with the specifications of GB 14167.5 Test Procedure5.1 The three dimensional H point machine for measuring the seat dimension shall comply with the specifications of GB/T11559.5.2 The burning characteristics of the seat facing materials shall be tested according to the method specified in Chapter 4 of GB 8410-1994.5.3 The air permeability of the seat facing materials shall be tested according to the method specified in GB/T 5453.5.4 The strength of the seat assembly shall be tested according to the method specified in GB/T 15083.5.5 The property of the seat head restraints shall be tested according to the method specified in Chapter 5 of GB11550-1995.5.6 The property of the seat safety belts shall be tested according to the method specified in GB 14166, and the strength of the fitting points shall be tested according to the method specified in GB 14167.5.7 The property of the seat gasket materials shall be tested according to the method specified in GB/T 56.6 Inspection Rules6.1 Ex-factory inspection.6.1.1 The seats shall pass the inspection by the quality department of the manufacturer and be granted the manufacturer certificate before leaving the factory.6.1.2 Each set of seats shall receive appearance quality inspection according to the specifications of 4.3.24.3.5.6.1.3 The inspection of the main seat dimension parameters shall be performed according to the drawing, and the inspection samples shall be no less than 3 of each batch of products.6.2 Type inspection6.2.1 In any of the following cases, perform type inspection, and take 3 sets at random in each sampling, the sampling basic number being no less than 50 sets.a）Finalization appraisal