Face Shield for Safety Helmet

Abstract

Disclosed is a face protector ( 100 ) configured to be rotated upward and downward while being coupled to coupling pieces ( 12 ) provided at opposite sides of a helmet ( 10 ), so as to protect the wearer's face. The face protector includes a body ( 120 ) for protecting the wearer's face, a pair of coupling units ( 140 ) configured to be fixedly coupled to both the coupling pieces of the safety helmet, respectively, and a plurality of links ( 160 a ,160 b ) used to connect the coupling units to opposite rear ends of the body, respectively, so as to restrict rotation of the body. The face protector has the effects of preventing the wearer's head from colliding with any object above the head in a narrow space, maximizing wearing convenience of the protector with a low wind-resistance and negligible weight-deflection, and guaranteeing easy and convenient use of the protector by preventing the protector from being unintentionally rotated downward by a weight thereof.

1 . A face protector for a safety helmet, which is rotated upward and downward by a predetermined angle while being coupled to coupling pieces provided at opposite sides of the safety helmet, so as to protect the wearer's face, comprising:
 a body configured to protect the wearer's face;   a pair of coupling units configured to be fixedly coupled to both the coupling pieces of the safety helmet, respectively; and   a plurality of links used to connect the coupling units to opposite rear ends of the body, respectively, so as to restrict rotation of the body.   
   
   
       2 . The face protector according to  claim 1 , wherein:
 the body has upper and lower operating shaft holes perforated, respectively, in both the rear ends thereof;   each of the coupling units comprises:   a fixing piece configured to be fitted to an associated one of the coupling pieces of the safety helmet and adapted to prevent unintentional movement of the coupling unit; and   a supporting piece located at the outer side of the fixing piece and having upper and lower supporting shaft holes formed at a protruding portion thereof; and   each of the links comprises upper and lower connecting shaft holes formed in opposite ends thereof, the links including upper links to connect the upper operating shaft hole with the upper supporting shaft hole through a shaft pin, and lower links to connect the lower operating shaft hole with the lower supporting shaft hole through a shaft pin,   whereby, if the body is rotated downward, a recessed edge portion of the upper link comes into close contact with one end of the lower link to restrict rotation of the body after being located in front of the wearer's face, and   if the body is rotated upward, the other end of the lower link comes into close contact with an end of the upper link to restrict rotation of the body while preventing a lower end of the body from being lifted from a front end portion of the safety helmet and allowing the body to come into close contact with a front portion of the safety helmet.   
   
   
       3 . The face protector according to  claim 2 , wherein elastic rings are coupled to the shaft pins, which are used to couple the upper and lower links to the upper and lower supporting shaft holes and the upper and lower operating shaft holes, the elastic rings serving to restrict rotation of the shaft pins by an elastic force thereof. 
   
   
       4 . The face protector according to  claim 3 , wherein the fixing piece of each coupling unit is formed at opposite sides thereof with elastic protrusions configured to be coupled to the coupling pieces of the safety helmet in a hook coupling manner. 
   
   
       5 . The face protector according to  claim 4 , wherein the body of the face protector has a lip formed at an upper end thereof to protrude inward, the lip being adapted to come into close contact with a rim of the safety helmet when the body is rotated downward. 
   
   
       6 . The face protector according to  claim 2 , wherein the fixing piece of each coupling unit is formed at opposite sides thereof with elastic protrusions configured to be coupled to the coupling pieces of the safety helmet in a hook coupling manner. 
   
   
       7 . The face protector according to  claim 6 , wherein the body of the face protector has a lip formed at an upper end thereof to protrude inward, the lip being adapted to come into close contact with a rim of the safety helmet when the body is rotated downward.