| 摘要 |
Presently disclosed embodiments provide a safe and easy way for a child, or other wearer, to independently tighten or loosen the chinstrap on his or her helmet while it remains buckled on his or her head. Disclosed embodiments comprise a knob attached to a side of the chinstrap webbing. The knob is an adjustment mechanism used to loosen or tighten the helmet chinstrap. After the wearer, possibly a child, buckles the helmet chinstrap below his or her chin, the wearer can reach up and twist the knob to loosen or tighten the chinstrap to achieve the proper fit. In some embodiments, each knob may have a cord or the like affixed at one end to an interior assembly and affixed at another end to the chinstrap material. In operation, the chinstrap may be buckled under the chin, and then the knob may be rotated forward, the attached cord is shortened and, thus, the chinstrap may be tightened. In some embodiments, the cording remains locked or set in position due to the operation of a ratchet, or ratchet-type assembly located in the interior of one or more of the knob assemblies where the cording winds. Similarly, when the wearer twists the one or more of the knobs in the opposite direction, the cording lengthens and, thus, loosens the chinstrap until the proper fit is achieved. Again, the cording remains locked or set in position until the knob is twisted again. In this manner, disclosed embodiments allows the wearer to easily and quickly adjust the fit of the helmet as necessary and ensure a proper and safe fit. |
