Attachment hardware means any or all hardware designed for securing the webbing of a seat belt assembly to a motor vehicle.
Automatic-locking retractor means a retractor incorporating adjustment hardware by means of a positive self-locking mechanism which is capable when locked of withstanding restraint forces.
Buckle means a quick release connector which fastens a person in a seat belt assembly.
Emergency-locking retractor means a retractor incorporating adjustment hardware by means of a locking 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 seat belt assembly.
Load-limiter means a seat belt assembly component or feature that controls tension on the seat belt to modulate the forces that are imparted to occupants restrained by the belt assembly during a crash.
Nonlocking retractor means a retractor from which the webbing is extended to essentially its full length by a small external force, which provides no adjustment for assembly length, and which may or may not be capable of sustaining restraint forces at maximum webbing extension.
Pelvic restraint means a seat belt assembly or portion thereof intended to restrain movement of the pelvis.
Retractor means a device for storing part or all of the webbing in a seat belt assembly.
Seat back retainer means the portion of some seat belt assemblies designed to restrict forward movement of a seat back.
Seat belt assembly means any strap, webbing, or similar device designed to secure 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 seat belt assembly in a motor vehicle.
Strap means a narrow nonwoven material used in a seat belt assembly in place of webbing.
Type 1 seat belt assembly is a lap belt for pelvic restraint.
Type 2 seat belt assembly is a combination of pelvic and upper torso restraints.
Type 2a shoulder belt is an upper torso restraint for use only in conjunction with a lap belt as a Type 2 seat belt assembly.
Upper torso restraint means a portion of a seat belt assembly intended to restrain movement of the chest and shoulder regions.
Webbing means a narrow fabric woven with continuous filling yarns and finished selvages.
A Type 2a shoulder belt shall comply with applicable requirements for a Type 2 seat belt assembly in S4.1 to S4.4, inclusive.
5th percen- tile adult female | 95th percentile adult male | |
Weight | 46.3 kg | 97.5 kg. |
Erect sitting height | 785 mm | 965 mm. |
Hip breadth (sitting) | 325 mm | 419 mm. |
Hip circumference (sitting) | 925 mm | 1199 mm. |
Waist circumference (sitting) | 599 mm | 1080 mm. |
Chest depth | 190 mm | 267 mm. |
Chest circumference: | ||
Nipple | 775 mm | 1130 mm. |
Upper | 757 mm | 1130 mm. |
Lower | 676 mm | 1130 mm. |
This seat belt assembly is for use only in [insert specific seating position(s), e.g., "front right"] in [insert specific vehicle make(s) and model(s)].
Note: This test shall not be required on webbing made from material which is inherently resistant to micro-organisms.
Note: When attachment and other hardware are permanently fastened, by sewing or other means, to the same piece of webbing, separate assemblies shall be used to test the two types of hardware. The test for corrosion resistance shall not be required for attachment hardware made from corrosion-resistant steel containing at least 11.5 percent chromium or for attachment hardware protected with an electrodeposited coating of nickel, or copper and nickel, as prescribed in S4.3(a). The assembly that has been used to test the corrosion resistance of the buckle shall be used to measure adjustment force, tilt-lock adjustment, and buckle latch in paragraphs (e), (f), and (g), respectively, of this section, assembly performance in S5.3 and buckle release force in paragraph (d) of this section.
Note: This test shall not be required on a nonlocking retractor attached to the free end of webbing which is not subjected to any tension during restraint of an occupant by the assembly.
49 C.F.R. §571.209
For FEDERAL REGISTER citations affecting § 571.209, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.