GOLF CLUB HAVING AN ELASTOMER ELEMENT FOR BALL SPEED CONTROL
A golf club head including a club head body including a back portion and a striking face, wherein the striking face comprises a front surface configured to strike a golf ball and a rear surface opposite the front surface, wherein the back portion is spaced from the rear surface, a deformable element residing between the back portion and the rear surface of the striking face, wherein the deformable element comprises a front surface in contact with the rear surface of the striking face and a rear surface in contact with the back portion, wherein the acoustic sound profile comprises a first sound power peak below 3,800 Hz, a second sound power peak above 3,800 Hz, and a sound power ratio including the magnitude of the second power peak divided by the magnitude of the first power peak, wherein the sound power ratio is less than 1.40
1 . A golf club head comprising:
a club head body comprising a back portion and a striking face;
wherein said striking face comprises a front surface configured to strike a golf ball and a rear surface opposite said front surface;
wherein said back portion is spaced from said rear surface;
a deformable element residing between said back portion and said rear surface of said striking face;
wherein said deformable element comprises a front surface in contact with said rear surface of said striking face and a rear surface in contact with said back portion;
wherein said front surface of said deformable element is circular having a front diameter;
wherein said rear surface of said deformable element is circular having a rear diameter;
wherein said front diameter divided by said rear diameter is greater than 1.2; and
wherein at least a portion of said striking face comprises a thickness of less than or equal to 2.4 mm.
2 . The golf club head of claim 1 , wherein said striking face is substantially constant in thickness.
3 . The golf club head of claim 1 , wherein said deformable element comprises an elastomer which displays an elastic modulus of about 1 to about 50 GPa.
4 . The golf club head of claim 1 , wherein said golf club head comprises an acoustic sound profile when striking a golf ball, wherein said acoustic sound profile comprises a first sound power peak below 3,800 Hz, a second sound power peak above 3,800 Hz, and a sound power ratio comprising the magnitude of the second power peak divided by the magnitude of the first power peak, wherein said sound power ratio is less than 1.40.
5 . The golf club head of claim 1 , further comprising a contact energy absorption factor greater than 0.2 and less than 1.0.
6 . The golf club head of claim 1 , wherein said deformable element comprises a tapered portion between said front surface and said rear surface.
7 . A golf club head comprising:
a club head body comprising a back portion and a striking face;
wherein said striking face comprises a front surface configured to strike a golf ball and a rear surface opposite said front surface;
wherein said back portion is spaced from said rear surface;
a deformable element residing between said back portion and said rear surface of said striking face;
wherein said deformable element comprises a front surface in contact with said rear surface of said striking face and a rear surface in contact with said back portion;
a contact energy absorption factor greater than 0.2 and less than 1.0; and
wherein said deformable element comprises a tapered portion between said front surface and said rear surface.
8 . The golf club head of claim 7 , wherein said striking face is substantially constant in thickness.
9 . The golf club head of claim 7 , wherein said deformable element comprises an elastomer which displays an elastic modulus of about 1 to about 50 GPa.
10 . The golf club head of claim 7 , wherein said golf club head comprises an acoustic sound profile when striking a golf ball, wherein said acoustic sound profile comprises a first sound power peak below 3,800 Hz, a second sound power peak above 3,800 Hz, and a sound power ratio comprising the magnitude of the second power peak divided by the magnitude of the first power peak, wherein said sound power ratio is less than 1.40.
11 . The golf club head of claim 10 , wherein said sound power ratio is less than 1.20.
12 . The golf club head of claim 7 , wherein at least a portion of said striking face comprises a thickness of less than or equal to 2.4 mm.
13 . The golf club head of claim 7 , wherein an area of said front surface of said deformable element divided by an area of said rear surface of said deformable element is greater than 1.4.
14 . The golf club head of claim 7 , wherein said deformable element further comprises a constant diameter portion located adjacent said back portion of said golf club head.
15 . A golf club head comprising:
a club head body comprising a back portion and a striking face;
wherein said striking face comprises a front surface configured to strike a golf ball and a rear surface opposite said front surface;
wherein said back portion is spaced from said rear surface;
a deformable element residing between said back portion and said rear surface of said striking face;
wherein said deformable element comprises a front surface in contact with said rear surface of said striking face and a rear surface in contact with said back portion;
an acoustic sound profile when striking a golf ball, wherein said acoustic sound profile comprises a first sound power peak below 3,800 Hz, a second sound power peak above 3,800 Hz, and a sound power ratio comprising the magnitude of the second power peak divided by the magnitude of the first power peak, wherein said sound power ratio is less than 1.40.
16 . The golf club head of claim 15 , wherein said striking face is substantially constant in thickness.
17 . The golf club head of claim 15 , wherein said deformable element comprises an elastomer which displays an elastic modulus of about 1 to about 50 GPa.
18 . The golf club head of claim 15 , wherein said sound power ratio is less than 1.20.
19 . The golf club head of claim 15 , wherein at least a portion of said striking face comprises a thickness of less than or equal to 2.4 mm.
20 . The golf club head of claim 15 , wherein an area of said front surface of said deformable element divided by an area of said rear surface of said deformable element is greater than 1.4.