Golf club head
First Claim
Patent Images
1. A hollow body iron-type golf club head, comprising:
- a body, comprising a heel portion, a first part of a sole portion, a toe portion, a top portion, a rear wall, and a hosel of the golf club head;
a strike plate welded to the body, wherein;
the strike plate comprises a strike face of the golf club head, a second part of the sole portion of the golf club head, and a majority of a face-to-sole portion transition region between the face and the sole portion;
the strike plate, the heel portion, the sole portion, the toe portion, the top portion, and the rear wall enclose an internal cavity of the golf club head;
the second part of the sole portion has an internal surface that defines a portion of the internal cavity;
the strike plate has a central portion and a peripheral portion surrounding the central portion, wherein a thickness of the central portion is greater than a thickness of the peripheral portion; and
the first part of the sole portion comprises a recess formed in an internal surface of the first part of the sole portion;
a filler material within the internal cavity;
a tungsten weight located within the recess of the first part of the sole portion;
a first COR drop off value when the internal cavity is unfilled;
a second COR drop off value when the internal cavity is at least partially filled with the filler material; and
a COR change value being a difference between the second COR drop off value and the first COR drop off value;
wherein;
the COR change value is between 0 and −
0.01;
the filler material is only a polyurethane based foam;
the body further comprises a threaded toe port formed in the toe portion of the golf club head, wherein the internal cavity is configured to receive the filler material through the threaded toe port; and
the golf club head further comprises a threaded plug that is threadably engaged with the threaded toe port to plug the threaded toe port.
8 Assignments
0 Petitions
Accused Products
Abstract
Described herein is a golf club head that comprises a body and a strike plate. The body comprises a heel portion, a sole portion, a toe portion, and a top portion. The strike plate comprises an outer peripheral edge and at least a portion of a strike face. Furthermore, the strike plate is welded to the body via a peripheral weld between the outer peripheral edge of the strike plate and the body. The outer peripheral edge of the strike plate comprises at least one welded portion, welded to the body via the peripheral weld, and at least one non-welded portion, not welded to the body.
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Citations
25 Claims
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1. A hollow body iron-type golf club head, comprising:
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a body, comprising a heel portion, a first part of a sole portion, a toe portion, a top portion, a rear wall, and a hosel of the golf club head; a strike plate welded to the body, wherein; the strike plate comprises a strike face of the golf club head, a second part of the sole portion of the golf club head, and a majority of a face-to-sole portion transition region between the face and the sole portion; the strike plate, the heel portion, the sole portion, the toe portion, the top portion, and the rear wall enclose an internal cavity of the golf club head; the second part of the sole portion has an internal surface that defines a portion of the internal cavity; the strike plate has a central portion and a peripheral portion surrounding the central portion, wherein a thickness of the central portion is greater than a thickness of the peripheral portion; and the first part of the sole portion comprises a recess formed in an internal surface of the first part of the sole portion; a filler material within the internal cavity; a tungsten weight located within the recess of the first part of the sole portion; a first COR drop off value when the internal cavity is unfilled; a second COR drop off value when the internal cavity is at least partially filled with the filler material; and a COR change value being a difference between the second COR drop off value and the first COR drop off value; wherein; the COR change value is between 0 and −
0.01;the filler material is only a polyurethane based foam; the body further comprises a threaded toe port formed in the toe portion of the golf club head, wherein the internal cavity is configured to receive the filler material through the threaded toe port; and the golf club head further comprises a threaded plug that is threadably engaged with the threaded toe port to plug the threaded toe port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A hollow body iron-type golf club head, comprising:
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a body, comprising a heel portion, a first part of a sole portion, a toe portion, a top portion, a rear wall, and a hosel of the golf club head; a strike plate welded to the body, wherein; the strike plate comprises a strike face of the golf club head, a second part of the sole portion of the golf club head, and a majority of a face-to-sole portion transition region between the face and the sole portion; the strike plate, the heel portion, the sole portion, the toe portion, the top portion, and the rear wall enclose an internal cavity of the golf club head; the second part of the sole portion has an internal surface that defines a portion of the internal cavity; the strike plate has a central portion and a peripheral portion surrounding the central portion, wherein a thickness of the central portion is greater than a thickness of the peripheral portion; and the first part of the sole portion comprises a recess formed in an internal surface of the first part of the sole portion; a filler material within the internal cavity; a tungsten weight located within the recess of the first part of the sole portion; a first COR drop off value when the internal cavity is unfilled; a second COR drop off value when the internal cavity is at least partially filled with the filler material; and a COR change value being a difference between the second COR drop off value and the first COR drop off value; wherein; the filler material is only a polyurethane based foam; the COR change value is greater than −
0.002;a COR of the golf club head is no less than 0.826; the body further comprises a threaded toe port formed in the toe portion of the golf club head, wherein the internal cavity is configured to receive the filler material through the threaded toe port; and the golf club head further comprises a threaded plug that is threadably engaged with the threaded toe port to plug the threaded toe port. - View Dependent Claims (20, 21, 22, 23, 24)
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25. A hollow body iron-type golf club head, comprising:
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a body, comprising a heel portion, a first part of a sole portion, a toe portion, a top portion, a rear wall, and a hosel of the golf club head; a strike plate welded to the body, wherein; the strike plate comprises a strike face of the golf club head, a second part of the sole portion of the golf club head, and a majority of a face-to-sole portion transition region between the face and the sole portion; the strike plate, the heel portion, the sole portion, the toe portion, the top portion, and the rear wall enclose an internal cavity of the golf club head; the second part of the sole portion has an internal surface that defines a portion of the internal cavity; the strike plate has a central portion and a peripheral portion surrounding the central portion, wherein a thickness of the central portion is greater than a thickness of the peripheral portion; and the first part of the sole portion comprises a recess formed in an internal surface of the first part of the sole portion; a filler material within the internal cavity; a tungsten weight located within the recess of the first part of the sole portion; a first COR drop off value when the internal cavity is unfilled; a second COR drop off value when the internal cavity is at least partially filled with the filler material; and a COR change value being a difference between the second COR drop off value and the first COR drop off value; wherein; the COR change value is between 0 and −
0.01;the filler material is only a polyurethane based foam; wherein the polyurethane based foam is a two part polyurethane based foam; the body further comprises a threaded toe port formed in the toe portion of the golf club head, wherein the internal cavity is configured to receive the filler material through the threaded toe port; and the golf club head further comprises a threaded plug that is threadably engaged with the threaded toe port to plug the threaded toe port; the rear wall comprises a sole bar protruding from the first part of the sole portion into the internal cavity, wherein the sole bar is located in a low and rearward portion of the golf club head and has a relatively large thickness in relation to the strike plate; a thickness of the second part of the sole portion is less than the thickness of the central portion of strike plate; at least a portion of the second part of the sole portion is welded along the first part of the sole portion; and the filler material extends overtop the sole bar.
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Specification