GOLF CLUB HEADS AND METHODS TO MANUFACTURE GOLF CLUB HEADS

• US 20200023244A1
• Filed: 10/01/2019
• Published: 01/23/2020
• Est. Priority Date: 11/03/2017
• Status: Active Grant

• Current Assignee: Parsons Xtreme Golf, Llc
• Original Assignee: Parsons Xtreme Golf, Llc
• Inventors: Parsons, Robert R., Nicolette, Michael R., Schweigert, Bradley D.
• Granted Patent: US 10,632,349 B2
• Time in Patent Office: Days
• CPC Class Codes: A63B 1/00 Horizontal bars
• CPC Class Codes: A63B 2071/0694 Visual indication, e.g. Indicia
• CPC Class Codes: A63B 2102/32 Golf
• CPC Class Codes: A63B 2209/00 Characteristics of used materials
• CPC Class Codes: A63B 2209/10 with adhesive type surfaces, i.e. hook and loop-type fastener
• CPC Class Codes: A63B 2225/15 with identification means that can be read by electronic means
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/0412 Volume
• CPC Class Codes: A63B 53/0416 Heads having an impact surface provided by a face insert
• CPC Class Codes: A63B 53/042 the face insert consisting of a material different from that of the head
• CPC Class Codes: A63B 53/0425 the face insert comprising two or more different materials
• CPC Class Codes: A63B 53/0429 the face insert comprising two or more layers of material
• CPC Class Codes: A63B 53/047 iron-type
• CPC Class Codes: A63B 53/0475 with one or more enclosed cavities
• CPC Class Codes: A63B 60/02 Ballast means for adjusting the centre of mass A63B60/24, A63B60/54 take precedence
• CPC Class Codes: A63B 60/42 Devices for measuring, verifying, correcting or customising the inherent characteristics of golf clubs, bats, rackets or the like, e.g. measuring the maximum torque a batting shaft can withstand
• CPC Class Codes: A63B 60/54 with means for damping vibrations

Abstract

Embodiments of golf club heads, golf clubs, and methods to manufacture golf club heads and golf clubs are generally described herein. In one example, a golf club head may include a body portion having an interior cavity and a front portion. A face portion is attached to the front portion of the body portion to enclose the interior cavity. The golf club head may further include a first filler material coupled to a portion of an inner wall of the body portion, and a second filler material between the first filler material and the face portion and coupled to the face portion. The first filler material has a greater coefficient of restitution (COR) than the second filler material, and the second filler material has a greater stiffness than the first filler material. Other examples and embodiments may be described and claimed.

Claims

1. A golf club head comprising:

a body portion having an interior cavity and a front portion;

a face portion attached to the front portion of the body portion to enclose the interior cavity;

a first filler material coupled to a portion of an inner wall of the body portion; and

a second filler material between the first filler material and the face portion and coupled to the face portion,

wherein the first filler material has a greater coefficient of restitution (COR) than the second filler material,

wherein the second filler material has a greater stiffness than the first filler material, and

wherein a COR of the golf club head is greater than or equal to 0.82.

2. A golf club head as defined in claim 1, wherein the first filler material is a formed as an insert before the face portion is attached to the body portion and bonded to the portion of the inner wall of the body portion to fill a portion of the interior cavity, and wherein the second filler material is injected into the interior cavity to fill the remaining portions of the interior cavity.

3. A golf club head as defined in claim 1, wherein a volume of the first filler material is greater than or equal to 5% of a volume of the body portion and less than or equal to 20% of the volume of the body portion, wherein the volume of the first filler material is greater than or equal to 20% of a volume of the interior cavity and less than or equal to 45% of the volume of the interior cavity, wherein a mass of the first filler material is greater than or equal to 1.0% of a mass of the body portion and less than or equal to 3.5% of the mass of the body portion, and wherein a mass of the second filler material is greater than or equal to 2.5% of the mass of the body portion and less than or equal to 8.5% of the mass of the body portion.

4. A golf club head as defined in claim 1, wherein the first filler material is a rubber-based compound.

5. A golf club head as defined in claim 1, wherein the second filler material is an epoxy-based material.

6. A golf club head as defined in claim 1, wherein the body portion includes a plurality of recessed portions defining the interior cavity, wherein a central recessed portion of the plurality of recessed portions includes the maximum width of the interior cavity, and wherein all or a substantial portion of the first filler material is located in the central recessed portion.

7. A golf club head as defined in claim 1, wherein the body portion includes a plurality of recessed portions defining the interior cavity, wherein a width of the interior cavity decreases from a central recessed portion of the plurality of recessed portions to one or more recessed portions of the plurality of recessed portions adjacent a perimeter edge portion of the body portion, and wherein all or a substantial portion of the first filler material is located in the central recessed portion.

the overall mass

8. A golf club head as defined in claim 1, wherein of the second filler material in the interior cavity is greater than an overall mass of the first filler material in the interior cavity.

9. A golf club head comprising:

a body portion having an interior cavity and a front portion;

a face portion attached to the front portion of the body portion to enclose the interior cavity;

a first filler material coupled to a portion of an inner wall of the body portion; and

a second filler material between the first filler material and the face portion and coupled to the face portion,

wherein the second filler material has a greater stiffness than the first filler material,

wherein a volume of the first filler material is greater than or equal to 5% of a volume of the body portion and less than or equal to 20% of the volume of the body portion,

wherein the volume of the first filler material is greater than or equal to 20% of a volume of the interior cavity and less than or equal to 45% of the volume of the interior cavity,

wherein a mass of the first filler material is greater than or equal to 1.0% of a mass of the body portion and less than or equal to 3.5% of the mass of the body portion, and

wherein a mass of the second filler material is greater than or equal to 2.5% of the mass of the body portion and less than or equal to 8.5% of the mass of the body portion.

10. A golf club head as defined in claim 9, wherein the first filler material is a formed as an insert before the face portion is attached to the body portion and bonded to the portion of the inner wall of the body portion to fill a portion of the interior cavity, and wherein the second filler material is injected into the interior cavity to fill the remaining portions of the interior cavity.

11. A golf club head as defined in claim 9, wherein the first filler material is a rubber-based compound, and wherein the second filler material is an epoxy-based material.

12. A golf club head as defined in claim 9, wherein the first filler material has a greater coefficient of restitution (COR) than the second filler material.

13. A golf club head as defined in claim 9, wherein the face portion has a thickness of less than or equal to 0.075 inches (1.9 millimeters), and wherein a center portion of the face portion has a maximum deflection of greater than or equal to 0.0197 inches (0.5 millimeters) with a golf ball striking the center portion of the face portion at a velocity of 85 miles per hour (38 meters/second).

14. A golf club head as defined in claim 9, wherein the body portion includes a plurality of recessed portions defining the interior cavity, wherein a central recessed portion of the plurality of recessed portions includes the maximum width of the interior cavity, and wherein all or a substantial portion of the first filler material is located in the central recessed portion.

15. A golf club head comprising:

a body portion having an interior cavity and a front portion;

a face portion attached to the front portion of the body portion to enclose the interior cavity, the face portion having a thickness of less than or equal to 0.075 inches (1.9 millimeters);

a first filler material coupled to a portion of an inner wall of the body portion; and

a second filler material between the first filler material and the face portion and coupled to the face portion,

wherein the first filler material comprises a rubber-based compound,

wherein the second filler material comprises an epoxy-based compound, the second filler material having a smaller coefficient of restitution (COR) than the first filler material, and

wherein a center portion of the face portion has a maximum deflection of greater than or equal to 0.0197 inches (0.5 millimeters) with a golf ball striking the center portion of the face portion at a velocity of 85 miles per hour (38 meters/second), and

wherein a COR of the golf club head is greater than or equal to 0.81.

16. A golf club head as defined in claim 15, wherein a volume of the first filler material is greater than or equal to 5% of a volume of the body portion and less than or equal to 20% of the volume of the body portion, and wherein the volume of the first filler material is greater than or equal to 20% of a volume of the interior cavity and less than or equal to 45% of the volume of the interior cavity.

17. A golf club head as defined in claim 15, wherein a mass of the first filler material is greater than or equal to 1.0% of a mass of the body portion and less than or equal to 3.5% of the mass of the body portion, and wherein a mass of the second filler material is greater than or equal to 2.5% of the mass of the body portion and less than or equal to 8.5% of the mass of the body portion.

18. A golf club head as defined in claim 15, wherein the first filler material is a formed as an insert before the face portion is attached to the body portion and bonded to the portion of the inner wall of the body portion to fill a portion of the interior cavity, and wherein the second filler material is injected into the interior cavity to fill the remaining portions of the interior cavity.

19. A golf club head as defined in claim 15, wherein the second filler material has a greater stiffness than the first filler material.

20. A golf club head as defined in claim 15, wherein the body portion includes a plurality of recessed portions defining the interior cavity, wherein a width of the interior cavity decreases from a central recessed portion of the plurality of recessed portions to one or more recessed portions of the plurality of recessed portions adjacent a perimeter edge portion of the body portion, and wherein all or a substantial portion of the first filler material is located in the central recessed portion and extending to the perimeter edge portion without contacting the face portion.