GOLF CLUB HEADS AND METHODS TO MANUFACTURE GOLF CLUB HEADS
Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head may include a body portion with a toe portion, a heel portion, a top portion, a sole portion, a rear portion, and a front portion having a face portion with a face portion thickness extending between a front surface and a back surface. The body portion may be associated with a body portion volume. The golf club head may also include an interior cavity. The interior cavity may include an elastic polymer material. Other examples and embodiments may be described and claimed.
1 . A golf club head comprising:
a body portion having a toe portion, a heel portion, a top portion, a sole portion, a rear portion, a front portion having a face portion with a face portion thickness extending between a front surface and a back surface, and an interior cavity, the body portion being associated with a body portion volume;
a first weight portion and a second weight portion;
a port located closer to the toe portion than the heel portion and connected to the interior cavity; and
a polymer material injected into the interior cavity from the port, the polymer material being associated with a polymer material volume;
wherein the polymer material volume is related to the body portion volume by the equation 0.2≦V e /V b ≦0.5, where V e is the polymer material volume in units of in 3 , and V b is the body portion volume in units of in 3 ,
wherein the first weight portion is located closer to the toe portion than the second weight portion,
wherein the first weight portion is located closer to the top portion than the second weight portion, and
wherein the first weight portion is located closer to the face portion than the second weight portion.
2 . A golf club head as defined in claim 1 , wherein the port is configured to receive the first weight portion.
3 . A golf club head as defined in claim 1 further comprising a bonding portion bonded to the back surface of the face portion, wherein the polymer material is bonded to the bonding portion.
4 . A golf club head as defined in claim 1 further comprising another port located below a horizontal midplane of the body portion.
5 . A golf club head as defined in claim 1 , wherein the face portion thickness is between about 0.02 inch (0.508 mm) and about 0.09 inch (2.286 mm).
6 . A golf club head as defined in claim 1 , wherein the polymer material comprises an elastic polymer material.
7 . A golf club head as defined in claim 1 , wherein the first weight portion and the second weight portion have at least one different physical property.
8 . A golf club head as defined in claim 1 , wherein the interior cavity comprises a cavity height extending between the top and sole portions, the cavity height being at least 50% of a body height of the body portion.
9 . A golf club head comprising:
a body portion having a toe portion, a heel portion, a top portion, a sole portion, a rear portion, a front portion having a face portion with a face portion thickness extending between a front surface and a back surface and being less than or equal to about 1.9 millimeters (0.075 inch), and an interior cavity;
a first weight portion and a second weight portion, the first weight portion and the second weight portion having at least one different physical property;
a port located closer to the toe portion than the heel portion and connected to the interior cavity; and
a polymer material injected into the interior cavity from the port,
wherein the first weight portion is located closer to the toe portion than the second weight portion,
wherein the first weight portion is located closer to the top portion than the second weight portion, and
wherein the first weight portion is located closer to the face portion than the second weight portion.
10 . A golf club head as defined in claim 9 , wherein the body portion is associated with a body portion volume, wherein the polymer material is associated with a polymer material volume, and wherein the polymer material volume is related to the body portion volume by the equation 0.2≦V e /V b ≦0.5, where V e is the polymer material volume in units of in 3 , and V b is the body portion volume in units of in 3 .
11 . A golf club head as defined in claim 9 , wherein the port is configured to receive the first weight portion.
12 . A golf club head as defined in claim 9 further comprising a bonding portion bonded to the back surface of the face portion, wherein the polymer material is bonded to the bonding portion.
13 . A golf club head as defined in claim 9 further comprising another port located below a horizontal midplane of the body portion.
14 . A golf club head as defined in claim 9 , wherein the polymer material comprises an elastic polymer material.
15 . A golf club head as defined in claim 9 , wherein the interior cavity comprises a cavity height extending between the top and sole portions, the cavity height being at least 50% of a body height of the body portion.
16 . A golf club head comprising:
a body portion having a toe portion, a heel portion, a top portion, a sole portion, a rear portion, a front portion having a face portion with a face portion thickness extending between a front surface and a back surface, and an interior cavity;
a first weight portion and a second weight portion, the first weight portion and the second weight portion having at least one different physical property;
a first port located closer to the toe portion than the heel portion and connected to the interior cavity;
a second port located below a horizontal midplane of the body portion and being farther from the toe portion than the first port; and
a polymer material injected into the interior cavity from the first port;
wherein the first weight portion is located closer to the toe portion than the second weight portion, and
wherein the first weight portion is located closer to the top portion than the second weight portion.
17 . A golf club head as defined in claim 16 , wherein the face portion thickness is between about 0.02 inch (0.508 mm) and about 0.09 inch (2.286 mm).
18 . A golf club head as defined in claim 16 , wherein the first weight portion is located closer to the face portion than the second weight portion.
19 . A golf club head as defined in claim 16 , wherein the body portion is associated with a body portion volume, wherein the polymer material is associated with a polymer material volume, and wherein the polymer material volume is related to the body portion volume by the equation 0.2≦V e /V b ≦0.5, where V e is the polymer material volume in units of in 3 , and V b is the body portion volume in units of in 3 .
20 . A golf club head as defined in claim 16 , wherein the interior cavity comprises a cavity height extending between the top and sole portions, the cavity height being at least 50% of a body height of the body portion.