| 摘要 |
<p>CHIN STRAP FOR PROTECTIVE HEADGEAR A chin strap for protective headgear comprising, an elongated first strap having means for attaching opposed end portions of the first strap to the headgear. The chin strap has a second strap having opposed ends connected to the first strap at spaced first and second points in a central portion of the first strap, with the first and second straps being spaced from each other intermediate the connecting points. The chin strap has a third strap having one end connected to the first strap at a third point intermediate the first and second connecting points and adjacent the first connecting point, and having means for attaching the other end portion of the third strap to the headgear. The chin strap has a fourth strap having one end connected to the first strap at a fourth point intermediate the first and second connecting points and adjacent the second connecting point, and having means for connecting the other end portion of the fourth strap to the headgear. The chin strap also has a chin cup extending between the spaced portions of the first and second straps.</p> |
