Golf club head with an air-discharging structure

Abstract

A golf club head has a body and a hitting plate. The body has a front side, a rear side, a chamber and a recess. The chamber is defined in the front side, hold a shock absorbing material inside and has a top edge, an opening defined in the front side and at least one air-discharging channel. The air-discharging channel is defined in the top edge and has a depth being small as for allowing air inside the chamber to discharge via the air-discharging channel but keeping the shock absorbing material inside the chamber from exhausting through the air-discharging channel. The recess is defined in the rear side and has a bottom and an injection hole defined through the bottom and communicating with the chamber. The hitting plate is attached to the front side of the body and closes the opening of the chamber.

1 . A golf club head comprising:
 a body having
 a front side; 
 a rear side; 
 a chamber defined in the front side, holding a shock absorbing material inside and having
 top edge; 
 an opening defined in the front side of the body; and 
 at least one air-discharging channel defined in the top edge and having a depth being small as for allowing air inside the chamber to discharge via the at least one air-discharging channel but keeping the shock absorbing material inside the chamber from exhausting through the at least one air-discharging channel; and 
 
 a recess defined in the rear side of the body and having
 a bottom; and 
 an injection hole defined through the bottom of the recess and communicating with the chamber; and 
 
   a hitting plate attached to the front side of the body and closing the opening of the chamber.   
   
   
       2 . The golf club head as claimed in  claim 1 , wherein
 the body further has a hollow defined above the chamber and extending through the front side and the rear side; and   the hitting plate extends to and covers the hollow at the front side of the body.   
   
   
       3 . The golf club head as claimed in  claim 2 , wherein
 the body has two air-discharging channels defined respectively near two ends of the top edge of the chamber and adjacent to the hitting plate.   
   
   
       4 . The golf club head as claimed in  claim 3 , wherein each air-discharging channel has a depth of between 0.1 to 0.008 millimeter and a width of between 5 to 8 millimeter. 
   
   
       5 . The golf club head as claimed in  claim 4 , wherein the body further has a cover mounted in the recess and covering the injection hole. 
   
   
       6 . The golf club head as claimed in  claim 5 , wherein the body further has two air-discharging bores defined through the bottom of the recess and communicating with the chamber. 
   
   
       7 . The golf club head as claimed in  claim 1 , wherein each one of the at least one air-discharging channel has a depth of between 0.1 to 0.008 millimeter and a width of between 5 to 8 millimeter. 
   
   
       8 . The golf club head as claimed in  claim 1 , wherein the body further has a cover mounted in the recess and covering the injection hole. 
   
   
       9 . The golf club head as claimed in  claim 8 , wherein the body further has two air-discharging bores defined through the bottom of the recess and communicating with the chamber.