§ 571.209 Standard No. 209; Seat belt asmblies.
S1. Purpo and scope. This standard specifies requirements for at belt asmblies.
S2. Application. This standard applies to at belt asmblies for u in pasnger cars, multipurpo pasnger vehicles, trucks, and bus.
S3. Definitions. Adjustment hardware means any or all hardware designed for adjusting the size of a at belt asmbly to fit the ur, including such hardware that may be integral with a buckle, attachment hardware, or retractor.
Attachment hardware means any or all hardware designed for curing the webbing of a at belt asmbly to a motor vehicle.
孙燕姿仓木麻衣
Automatic-locking retractor means a retractor incorporating adjustment hardware by means of a positive lf-locking mechanism which is capable when locked of withstanding restraint forces.
Buckle means a quick relea connector which fastens a person in a at belt asmbly.
Emergency-locking retractor means a retractor incorporating adjustment hardware by means of a locki
snoyng mechanism that is activated by vehicle acceleration, webbing movement relative to the vehicle, or other automatic action during an emergency and is capable when locked of withstanding restraint forces.
Hardware means any metal or rigid plastic part of a at belt asmbly.
Load-limiter means a at belt asmbly component or feature that controls tension on the at belt to modulate the forces that are imparted to occupants restrained by the belt asmbly during a crash.
Nonlocking retractor means a retractor from which the webbing is extended to esntially its full length by a small external force, which provides no adjustment for asmbly length, and which may or may not be capable of sustaining restraint forces at maximum webbing extension.
Pelvic restraint means a at belt asmbly or portion thereof intended to restrain movement of the pelvis.
Retractor means a device for storing part or all of the webbing in a at belt asmbly.
Seat back retainer means the portion of some at belt asmblies designed to restrict forward mov
ement of a at back.
Seat belt asmbly means any strap, webbing, or similar device designed to cure a person in a motor vehicle in order to mitigate the results of any accident, including all necessary buckles and other fasteners, and all hardware designed for installing such at belt asmbly in a motor vehicle.
Strap means a narrow nonwoven material ud in a at belt asmbly in place of webbing.
Type 1 at belt asmbly is a lap belt for pelvic restraint.
Type 2 at belt asmbly is a combination of pelvic and upper torso restraints.
Type 2a shoulder belt is an upper torso restraint for u only in conjunction with a lap belt as a Type 2 at belt asmbly.
Upper torso restraint means a portion of a at belt asmbly intended to restrain movement of the chest and shoulder regions.
Webbing means a narrow fabric woven with continuous filling yarns and finished lvages.
东南大学自考专业S4. Requirements.
S4.1(a) Incorporation by reference. SAE Recommended Practice J211–1 rev. December 2003, “Instrumentation for Impact Test—Part 1—Electronic Instrumentation,” is incorporated by reference in S5.2(j) and is hereby made part of this Standard. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies of SAE Recommended Practice J211–1 rev. December 2003, “Instrumentation for Impact Test—Part 1—Electronic Instrumentation” may be obtained from the Society of Automotive Engineers, Inc., 400 Commonwealth Drive, Warrendale, PA 15096–0001. Copies may be inspected at the National Highway Traffic Safety Administration, Technical Information Services, 400 Seventh Street, SW., Plaza Level, Room 403, Washington, DC 20590, or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call (202) 741–6030, or go to: v/federal_register/code_of_federal_regulations/ibr_locations.html.
(b) Single occupancy. A at belt asmbly shall be designed for u by one, and only one, person at any one time.
(c) Upper torso restraint. A Type 2 at belt asmbly shall provide upper torso restraint without shifting the pelvic restraint into the abdominal region. An upper torso restraint shall be designed to mi
nimize vertical forces on the shoulders and spine. Hardware for upper torso restraint shall be so designed and located in the at belt asmbly that the possibility of injury to the occupant is minimized.
A Type 2a shoulder belt shall comply with applicable requirements for a Type 2 at belt asmbly in S4.1 to S4.4, inclusive.
(d) Hardware. All hardware parts which contact under normal usage a person, clothing, or webbing shall be free from burrs and sharp edges.
(e) Relea. A Type 1 or Type 2 at belt asmbly shall be provided with a buckle or buckles readily accessible to the occupant to permit his easy and rapid removal from the asmbly. Buckle relea mechanism shall be designed to minimize the possibility of accidental relea. A buckle with relea mechanism in the latched position shall have only one opening in which the tongue can be inrted on the end of the buckle designed to receive and latch the tongue.
(f) Attachment hardware. A at belt asmbly shall include all hardware necessary for installation in a motor vehicle in accordance with Society of Automotive Engineers Recommended Practice J800c, “Motor Vehicle Seat Belt Installation,” November 1973. However, at belt asmblies designed for i
nstallation in motor vehicles equipped with at belt asmbly anchorages that do not require anchorage nuts, plates, or washers, need not have such hardware, but shall have 7/16–20 UNF–2A or 1/2–13UNC–2A attachment bolts or equivalent metric hardware. The hardware shall be designed to prevent attachment bolts and other parts from becoming dingaged from the vehicle while in rvice. Reinforcing plates or washers furnished for universal floor, installations shall be of steel, free from burrs and sharp edges on the peripheral edges adjacent to the vehicle, at least 1.5 mm in thickness and at least 2580 mm 2 in projected area. The distance between any edge of the plate and the edge of the bolt hole shall be at least 15 mm. Any corner shall be rounded to a radius of not less than 6 mm or cut so that no corner angle is less than 135° and no side is less than 6 mm in length.
会计学大学排名(g) Adjustment. (1) A Type 1 or Type 2 at belt asmbly shall be capable of adjustment to fit occupants who dimensions and weight range from tho of a
5th-percentile adult female to tho of a 95th-percentile adult male. The at belt asmbly shall have either an automatic-locking retractor, an emergency-locking retractor, or an adjusting device that is within the reach of the occupant.
(2) A Type 1 or Type 2 at belt asmbly for u in a vehicle having ats that are adjustable shall c
onform to the requirements of S4.1(g)(1) regardless of at position. However, if a at has a back that is parately adjustable, the requirements of S4.1(g)(1) need be met only with the at back in the manufacturer's nominal design riding position.
人教版八年级英语上册
(3) The adult occupants referred to in S4.1(g)(1) shall have the following measurements:
---------------------------------------------------------------------
---
5th percen- tile 95th
percentile
adult female adult male
---------------------------------------------------------------------
---reveals
< 46. 97.5 kg.
Erect 965 mm.
Hip breadth (sitting)........... 419 mm.
Hip circumference (sitting)..... 1199 mm.
Waist circumference (sitting)... 1080 mm.
267 mm.
Chest circumference:
< 1130 mm.
< 1130 mm.
< 1130 mm.
---------------------------------------------------------------------
复仇者联盟英文台词---
(h) Webbing. The ends of webbing in a at belt asmbly shall be protected or treated to prevent raveling. The end of webbing in a at belt asmbly having a metal-to-metal buckle that is ud by the occupant to adjust the size of the asmbly shall not pull out of the adjustment hardware at maximum size adjustment. Provision shall be made for esntially unimpeded movement of webbing routed between a at back and at cushion and attached to a retractor located behind the at.
(i) Strap. A strap ud in a at belt asmbly to sustain restraint forces shall comply with the requirements for webbing in S4.2, and if the strap is made from a rigid material, it shall comply with applicable requirements in S4.2, S4.3, and S4.4.身份证查六级
(j) Marking.Each at belt asmbly shall be permanently and legibly marked or labeled with year of manufacture, model, and name or trademark of manufacturer or distributor, or of importer if manufactured outside the United States. A model shall consist of a single combination of webbing having a specific type of fiber weave and construction, and hardware having a specific design. Webbings of various colors may be included under the same model, but webbing of each color shall comply with the requirements for webbing in S4.2.
(k) Installation instructions. A at belt asmbly, other than a at belt asmbly installed in a motor vehicle by an automobile manufacturer, shall
be accompanied by an instruction sheet providing sufficient information for installing the asmbly in a motor vehicle. The installation instructions shall state whether the asmbly is for universal installation or for installation only in specifically stated motor vehicles, and shall include at least tho items specified in SAE Recommended Practice J800c, “Motor Vehicle Seat Belt Installations,” November 1973. If the asmbly is for u only in specifically stated motor vehicles, the asmbly shall either be permanently and legibly marked or labeled with the following statement, or the instruction sheet shall include the following statement:
This at belt asmbly is for u only in [inrt specific ating position(s), e.g., “front right”] in [inrt specific vehicle make(s) and model(s)].
(l) Usage and maintenance instructions. A at belt asmbly or retractor shall be accompanied by written instructions for the proper u of the asmbly, stressing particularly the importance of wearing the asmbly snugly and properly located on the body, and on the maintenance f the asmbly and periodic inspection of all components. The instructions shall show the proper manner of threading webbing in the hardware of at belt asmblies in which the webbing is not permanently fastened. Instructions for a nonlocking retractor shall include a caution that the webbing must be fully extended from the retractor during u of the at belt asmbly unless the retractor is
attached to the free end of webbing which is not subjected to any tension during restraint of an occupant by the asmbly. Instructions for Type 2a shoulder belt shall include a warning that the shoulder belt is not to be ud without a lap belt.
(m) Workmanship. Seat belt asmblies shall have good workmanship in accordance with good commercial practice.
S4.2 Requirements for webbing.
(a) Width.The width of the webbing in a at belt asmbly shall be not less than 46 mm, except for portions that do not touch a 95th percentile adult male with the at in any adjustment position and the at back in the manufacturer's nominal design riding position when measured under the conditions prescribed in S5.1(a).
(b) Breaking strength. The webbing in a at belt asmbly shall have not less than the following breaking strength when tested by the procedures specified in S5.1(b): Type 1 at belt asmbly—26,689 N; Type 2 at belt asmbly—22,241 N for webbing in pelvic restraint and 17,793 N for webbing in upper torso restraint.
让爱成空
(c) Elongation.Except as provided in S4.5, the webbing in a at belt asmbly shall not extend to more than the following elongation when subjected to the specified forces in accordance with the procedure specified in S5.1(c): Type 1 at belt asmbly—20 percent at 11,120 N; Type 2 at belt asmbly 30 percent at 11,120 N for webbing in pelvic restraint and 40 percent at 11,120 N for webbing in upper torso restraint.
(d) Resistance to abrasion.The webbing of a at belt asmbly, after being subjected to abrasion as specified in S5.1(d) or S5.3(c), shall have a breaking strength of not less than 75 percent of the breaking strength listed in S4.2(b) for that type of belt asmbly.
(e) Resistance to light. The webbing in a at belt asmbly after exposure to the light of a carbon arc and tested by the procedure specified in S5.1(e) shall have a breaking strength not less than 60 percent of the strength before exposure to the carbon arc and shall have a color retention not less than No. 2 on the Geometric Gray Scale published by the American Association of Textile Chemists and Colorists, Post Office Box 886, Durham, NC.kary
(f) Resistance to micro-organisms.The webbing in a at belt asmbly after being subjected to micro-organisms and tested by the procedures specified in S5.1(f) shall have a breaking strength not less than 85 percent of the strength before subjection to micro-organisms.
S4.3 Requirements for hardware.
(a) Corrosion resistance. (1) Attachment hardware of a at belt asmbly after being subjected to the conditions specified in S5.2(a) shall be free of ferrous corrosion on significant surfaces except for permissible ferrous corrosion at peripheral edges or edges of holes on underfloor reinforcing plates and washers. Alternatively, such hardware at or near the floor shall be protected against corrosion by at least an electrodeposited coating of nickel, or copper and nickel with at least a rvice condition number of SC2, and other attachment hardware shall be protected by an electrodeposited coating of nickel, or copper and nickel with a rvice condition number of SC1, in accordance with American Society for Testing and Materials B456–79, “Standard Specification for Electrodeposited Coatings of Copper Plus Nickel Plus Chromium and Nickel Plus Chromium,” but such hardware shall not be racked for electroplating in locations subjected to maximum stress.
(2) Surfaces of buckles, retractors and metallic parts, other than attachment hardware, of a at belt asmbly after subjection to the conditions specified in S5.2(a) shall be free of ferrous or nonferrous corrosion which may be transferred, either directly or by means of the webbing, to the occupant or
