Head Restraint Adjustment. 3.1.5.1. If the head restraint adjusts automatically, the adjustments from paragraphs
3.1.4.1. to 3.1.4.6. shall apply.
3.1.5.2. Adjust the head restraint to the position intended for use by the 50th percentile male, as specified by the manufacturer. If not available adjust the head restraint in the midway between the lowest and the highest position and follow the paragraph 3.1.5.2.2. of this annex.
3.1.5.2.1. Where the adjustment of the head restraint is not automatic, it shall be set in accordance with the manufacturer’s specification.
3.1.5.2.2. If a locking position midway between the lowest and the highest position does not exist, adjust the head restraint to the position determined by the paragraphs below. A locking position exists within 10 mm vertically upwards from the geometric mid-position, this shall be the test position. If no locking position exists within 10 mm vertically upwards from the geometric mid-position then the next locking position down shall be the test position. This shall be determined from the top of the head restraint. 1 : Head Restraint in lowermost position. 2 : Head Restraint in uppermost position. 3 : Test Position. Horizontal mid-position between lowermost and uppermost position of the Head Restraint. When the head restraint has a locking fore-aft adjustment, it shall be in the midpoint. If a locking position exists within 10 mm horizontally forward from the geometric mid-position, this shall be the test position. If no locking position exists within 10 mm horizontally forwards from the geometric mid- position then the next locking position rearwards shall be the test position, as shown in Figure 14.1. If no fore-aft locking positions are available for the head restraint it shall be tilted fully rearward.
Head Restraint Adjustment. 3.1.5.1. If the head restraint adjusts automatically, the adjustments from paragraphs 3.1.4.1. to 3.1.4.6. shall apply.
3.1.5.2. Adjust the head restraint to the position intended for use by the 50th percentile male, as specified by the manufacturer. If not available adjust the head restraint in the midway between the lowest and the highest position and follow the paragraph 3.1.5.2.2. of this annex.
3.1.5.2.1. Where the adjustment of the head restraint is not automatic, it shall be set in accordance with the manufacturer’s specification.
3.1.5.2.2. If a locking position midway between the lowest and the highest position does not exist, adjust the head restraint to the position determined by the paragraphs below. A locking position exists within 10 mm vertically upwards from the geometric mid-position, this shall be the test position. If no locking position exists within 10 mm vertically upwards from the geometric mid-position then the next locking position down shall be the test position. This shall be determined from the top of the head restraint. (Locking positions up to 10mm above geometry midpoint) 1 : Head Restraint in lowermost position.
