Protective cap and earmuff assembly

Abstract

A protective cap and earmuff assembly is disclosed to include a headband having radial teeth at two sides, a protective cap, which has two sets of radial teeth angularly adjustably meshed with the radial teeth of the headband and locked with retaining split bolts, two support bars respectively detachably fastened to the headband at two sides, a head strip adjustably coupled between the support bars, two forks respectively pivoted to the support bars, and two ear cushions respectively supported on the forks.

1 . A protective cap and earmuff assembly comprising:
 a protective cap, said protective cap having two mounting through holes at two sides and a plurality of engagement teeth radially arranged around each mounting through hole of said protective cap;   a headband for securing said protective cap to an user's head, said headband comprising two mounting strips respectively extended from two distal ends thereof, the mounting strips of said headband each comprising a mounting through hole respectively connected to the mounting through holes of said protective cap with a respective retaining split bolt, and a plurality of engagement teeth radially arranged around the mounting through hole of the respective mounting strip for engagement with the engagement teeth of said protective cap, and two positioning strips respectively extended from two sides thereof, said positioning strips each having a plurality of recessed engagement portions, a hinged extension and a plurality of raised engagement portions protruded from said hinged extension for engaging said recessed engagement portions when said hinged extension is turned backwards; and   an earmuff, said earmuff comprising two support bars, said support bars each having a longitudinal sliding groove, a transversely extending through hole for the fastening of the hinged extensions of said headband, and two pivot rods aligned at two sides, two forks respectively pivoted to the pivot rods of said support bar, two ear cushions respectively supported on said forks, and a head strip coupled between said support bars, said head strip having two racks respectively extending from two distal ends thereof and respectively inserted into the longitudinal sliding grooves of said support bar, and two retaining blocks respectively extended from said racks for securing said racks to said support bars.   
   
   
       2 . The protective cap and earmuff assembly as claimed in  claim 1 , wherein said headband has a locating hole, said locating hole being formed of two connected round holes having different diameters, a retaining notch connected to said locating hole at one side, and a back strip, said back strip having a stud insertable into the locating hole of said headband, said stud having a retaining protrusion for engaging said retaining notch. 
   
   
       3 . The protective cap and earmuff assembly as claimed in  claim 1 , wherein the positioning strips of said headband each have a hook hole; said headband further has two fastening strips respectively disposed adjacent to said positioning strips and respectively terminating in a hook for hooking in the hook hole of the adjacent positioning strip to secure said earmuff to said headband after insertion of said positioning strips of said headband through the insertion holes of said support bars.