Quick adjustable headgear

Abstract

A headgear for a wearable personal protective equipment. The headgear includes an adjustable crown strap assembly that can be easily adjusted. The crown strap assembly includes a plurality of straps coupled to a headband. The headgear can be quickly set to conform a user's head and eliminates the need of resetting any of the adjustments when removing and donning the headgear.

What is claimed is: 
     
         1 . An adjustable headgear, comprising:
 a crown strap assembly having a tensioning line and quick lock arrangement to adjust an over-the-crown fit of the adjustable headgear; and   a circumferentially adjustable headband having a front section and a rear section, the rear section being adjustable with a tensioning mechanism, the circumferentially adjustable headband being coupled to the crown strap assembly, wherein the rear section is configured to elastically extend to slide relative to a user's head when removing or donning the adjustable headgear.   
     
     
         2 . The adjustable headgear of  claim 1 , wherein the adjustable headgear can be quickly set to conform a user's head and eliminates any need of resetting any adjustments when removing and donning the adjustable headgear. 
     
     
         3 . The adjustable headgear of  claim 1 , wherein the crown strap assembly includes a first strap and a second strap, the second strap being coupled to and movable with the first strap, the first strap and the second strap being coupled to the adjustable headband at a first pivot. 
     
     
         4 . The adjustable headgear of  claim 3 , wherein the first strap and the second strap are pivotable relative to the adjustable headband about the first pivot. 
     
     
         5 . The adjustable headgear of  claim 3 , wherein the first strap has a first strap portion and a second strap portion, the second strap portion being slidably coupled to the first strap portion, and an overall length of the first strap is determined by relative positions of the first strap portion and the second strap portion. 
     
     
         6 . The adjustable headgear of  claim 5 , wherein the tensioning line is coupled to the first strap portion and is slidably coupled to the second strap portion, and application of a force on the tensioning line causes the second strap portion to move relative to the first strap portion and to change the overall length of the first strap. 
     
     
         7 . The adjustable headgear of  claim 6 , wherein the second strap has a third strap portion and a fourth strap portion, the fourth strap portion being slidably coupled to the third strap portion, and an overall length of the second strap is determined by relative positions of the third strap portion and the fourth strap portion. 
     
     
         8 . The adjustable headgear of  claim 7 , wherein the tensioning line is coupled to the fourth strap portion and is slidably coupled to the third strap portion, and application of the force on the tensioning line causes the third strap portion to move relative to the fourth strap portion and change the overall length of the second strap. 
     
     
         9 . The adjustable headgear of  claim 8 , wherein the crown strap assembly includes a third strap and a fourth strap, the fourth strap being coupled to and movable with the third strap, the third strap and the fourth strap being coupled to the adjustable headband at a second pivot, the third strap and the fourth strap being pivotable relative to the adjustable headband about the second pivot. 
     
     
         10 . The adjustable headgear of  claim 9 , wherein the first strap and second strap are pivotable about the first pivot independently from movement of the third strap and the fourth strap about the second pivot. 
     
     
         11 . The adjustable headgear of  claim 9 , wherein the third strap has a fifth strap portion and a sixth strap portion, the sixth strap portion being slidably coupled to the fifth strap portion, and an overall length of the third strap is determined by relative positions of the fifth strap portion and the sixth strap portion. 
     
     
         12 . The adjustable headgear of  claim 11 , wherein the crown strap assembly includes a second tensioning line engageable with the fifth strap portion and with the sixth strap portion, and application of a force on the second tensioning line causes the sixth strap portion to move relative to the fifth strap portion and to change the overall length of the third strap. 
     
     
         13 . The adjustable headgear of  claim 12 , wherein the tensioning mechanism is a ratchet that can be manipulated to change the tension in the second tensioning line. 
     
     
         14 . The adjustable headgear of  claim 1 , wherein the quick lock arrangement permits limited slipping of the tensioning line so that it absorbs some of a force of impact applied to a hardhat coupled to the adjustable headgear. 
     
     
         15 . An adjustable headgear to which a hard hat can be coupled, the adjustable headgear comprising:
 a crown strap assembly having a first tensioning line, a second tensioning line, and a locking mechanism to adjust an over-the-crown fit of the adjustable headgear, the crown strap assembly including a plurality of adjustable straps; and   a circumferentially adjustable headband coupled to the crown strap assembly, the adjustable headband including a tensioning mechanism, wherein the tensioning mechanism and the locking mechanism are manipulatable to set and hold a fit of the adjustable headgear so that it can slide relative to a user's head when removing or donning the adjustable headgear.   
     
     
         16 . The adjustable headgear of  claim 15 , wherein the plurality of adjustable straps includes a first strap and a second strap being coupled to and movable with the first strap, the first strap and the second strap being coupled to the adjustable headband at a first pivot, and the first tensioning line is engageable with the first strap and the second strap. 
     
     
         17 . The adjustable headgear of  claim 15 , wherein the locking mechanism permits limited slipping of the first tensioning line so that it absorbs some of a force of impact applied to a hardhat coupled to the adjustable headgear. 
     
     
         18 . An adjustable headgear to which a hard hat can be coupled, the adjustable headgear comprising:
 a crown strap assembly having a first tensioning line, a second tensioning line, and a locking mechanism to adjust an over-the-crown fit of the adjustable headgear, the crown strap assembly including a first strap coupled to a second strap and movable about a first pivot, and a third strap coupled to a fourth strap and movable about a second pivot, the first tensioning line being engageable with the first strap and the second strap, and the second tensioning line being engageable with the third strap and the fourth strap; and   a circumferentially adjustable headband coupled to the crown strap assembly, the adjustable headband including a tensioning mechanism, wherein the tensioning mechanism and the locking mechanism are manipulatable to set and hold a fit of the adjustable headgear so that it can slide relative to a user's head when removing or donning the adjustable headgear, and the locking mechanism permits limited slipping of the first tensioning line so that it absorbs some of a force of impact applied to a hardhat coupled to the adjustable headgear.   
     
     
         19 . The adjustable headgear of  claim 18 , wherein the first strap has a first strap portion and a second strap portion, the second strap portion being slidably coupled to the first strap portion, and an overall length of the first strap is determined by relative positions of the first strap portion and the second strap portion which are adjustable by manipulating the first tensioning line. 
     
     
         20 . The adjustable headgear of  claim 18 , wherein the first strap and second strap are pivotable about the first pivot independently from movement of the third strap and the fourth strap about the second pivot.