Helmet manufacturing method and structure of helmet

Abstract

A helmet includes a shell having a head-protecting portion and two opposing cheek-protecting portions, the two cheek-protecting portions extending downward, integrally from left and right ends of the head-protecting portion, respectively, a protector having a jaw-protecting portion and a neck-protecting portion, the neck-protecting portion extending backward, integrally from a back end of the jaw-protecting portion, wherein a top edge of the neck-protecting portion of the protector connects to bottom edges of the cheek-protecting portions of the shell, and a foam liner disposed on an inner side of the shell and on an inner side of the protector to couple the shell and the protector together. The helmet further comprises a support disposed within the protector and enclosed by the foam liner.

What is claimed is: 
     
         1 . A helmet, comprising:
 a shell having a head-protecting portion and two opposing cheek-protecting portions, the two cheek-protecting portions extending downward, integrally from left and right ends of the head-protecting portion, respectively;   a protector having a jaw-protecting portion and a neck-protecting portion, the neck-protecting portion extending backward, integrally from a back end of the jaw-protecting portion, wherein a top edge of the neck-protecting portion of the protector connects to bottom edges of the cheek-protecting portions of the shell; and   a foam liner disposed on an inner side of the shell and on an inner side of the protector to couple the shell and the protector together;   wherein the helmet further comprises a support disposed within the protector and enclosed by the foam liner.   
     
     
         2 . The helmet of  claim 1 , wherein the protector is formed by connecting two opposing curved bars, front ends of the two curved bars are connected to jointly form the jaw-protecting portion, and back ends of the two curved bars are connected to jointly form the neck-protecting portion. 
     
     
         3 . The helmet of  claim 1 , wherein the protector has two opposing curved bars and a terminal cover, front ends of the two curved bars are connected to the terminal cover such that the front ends of the two curved bars and the terminal cover jointly form the jaw-protecting portion, and back ends of the two curved bars are connected to jointly form the neck-protecting portion. 
     
     
         4 . The helmet of  claim 1 , wherein the protector is annular. 
     
     
         5 . The helmet of  claim 1 , wherein a plurality of conical portions facing the protector is disposed on a side of the support. 
     
     
         6 . The helmet of  claim 1 , wherein the protector has a plurality of hollowed-out recesses, and the foam liner is disposed on the inner side of the protector except for the hollowed-out recesses. 
     
     
         7 . The helmet of  claim 1 , wherein the shell has a plurality of hollowed-out recesses, and the foam liner is disposed on the inner side of the shell except for the hollowed-out recesses. 
     
     
         8 . The helmet of  claim 1 , wherein the shell has a body and a front frame, the body having the head-protecting portion and the two cheek-protecting portions, the front frame being disposed at a front edge of the body.