Golf club

Abstract

This invention provides a golf club which enables each golf golfer to finely correct the ball flying tendency from the golf club in hand, considering the golfer's hitting habit or the like, to control hitting ball easily and correctly, and to enjoy playing golf in the most suitable hitting condition. A golf club comprising a concaveness ( 3 ) being provided on an impact area of the face ( 2 a ) of the club head ( 2 ), the impact plate ( 4 ) as a hitting area being covered and engaged not tightly with an opening area of the concaveness ( 3 ), the back side of the said impact plate ( 4 ) being supported by a spring material and spring constant adjusting function to change the spring constant or impact resilience of the spring material, and a feature as a combination of bolts inserted into loose connecting holes ( 5 ) extending from front to back of the head ( 2 ), connecting holes ( 12 ) extending in a slanting or up-and-down direction for tightening bolts, and screw holes ( 7 ) provided on the impact plate ( 4 ) to screw in the tip of the bolt.

What is claimed is:  
     
         1 . A golf club comprising a concaveness being provided on an impact area of the head face of the golf club, an impact plate as a hitting area being covered and engaged not tightly with an opening area of the said concaveness, the backside of the said impact plate being supported with a spring material therein a spring constant adjusting function to change the spring constant or impact resilience of the spring material, and a feature as a combination of bolts inserted into loose connecting holes extending from front to back of the head, connecting holes extending in a slanting or up-and-down direction for tightening bolts, and screw holes provided on the impact plate to screw in the tip of the bolt.  
     
     
         2 . A golf club as described in the aforementioned  claim 1 , comprising a feature wherein compressing degree can be accordingly adjusted by rotating the bolt in a connecting hole from a slant or up-and-down direction.