Golf club heads with trench features and related methods

• US 9,403,070 B2
• Filed: 10/01/2013
• Issued: 08/02/2016
• Est. Priority Date: 10/01/2013
• Status: Active Grant

• Current Assignee: Karsten Manufacturing Corporation
• Original Assignee: Karsten Manufacturing Corporation
• Inventors: Stokke, Ryan M., Jertson, Martin R., Fossum, Brandon L.
• Primary Examiner(s): PIERCE, WILLIAM M
• Application Number:
  US14/043,735
• Publication Number:
  US 20150094161A1
• Time in Patent Office: 1,036 Days
• Field of Search: 473/346, 473/345, 473/329
• US Class Current: 1/1
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/0437 with special crown configurations
• CPC Class Codes: A63B 53/045 Strengthening ribs
• CPC Class Codes: A63B 53/0462 characterised by tapering thickness of the impact face plate
• CPC Class Codes: A63B 53/0466 wood-type
• CPC Class Codes: A63B 60/00 Details or accessories of golf clubs, bats, rackets or the like
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

Golf club heads with trench features are described herein. Other embodiments and related methods are also disclosed herein.

Claims

1. A golf club head comprising:

a body comprising a sole, a crown, a body heel end, a body toe end, a body front end, and a body rear end; and

a trench feature at a body section of the body,

the body section comprising one of the sole or the crown;

wherein;

the trench feature comprises;

a trench cap having a specific gravity of less than 2, and a hardness of approximately less than 90 Shore A;

an inner trench section comprising a trench and an inner section wall bounding the trench;

a reinforcement structure protruded from the body section and bounding the inner trench section;

wherein

the reinforcement structure is separated from the trench cap by the inner section wall;

the reinforcement structure comprises;

a reinforcement inner perimeter adjacent to the inner trench section;

a reinforcement outer perimeter opposite the reinforcement inner perimeter; and

a reinforcement peak protruded between the reinforcement inner perimeter and the reinforcement outer perimeter;

the body section comprises;

a body section exterior surface defining an exterior body contour of the body section, wherein the body section exterior surface is discontinuous at the trench feature and extrapolates the discontinuous segment at the trench feature; and

a minimum outer thickness, located outside the reinforcement outer perimeter, and measured orthogonal to the exterior body contour;

the trench feature further comprises;

a reinforcement thickness measured, orthogonal to the exterior body contour, from the reinforcement peak to the exterior body contour; and

a reinforcement girth measured, orthogonal to the reinforcement thickness, between the reinforcement inner perimeter and the reinforcement outer perimeter;

the reinforcement structure protrudes past the minimum outer thickness into the body;

the reinforcement structure protrudes past the inner trench section into the body; and

the reinforcement girth is at least approximately 1.5 times greater than the minimum outer thickness.

2. The golf club head of claim 1, wherein:

the reinforcement girth is less than or equal to approximately 3 times greater than the minimum outer thickness.

3. The golf club head of claim 1, wherein:

the reinforcement thickness is greater than or equal to approximately 3 times greater than the minimum outer thickness.

4. The golf club head of claim 1, wherein:

the reinforcement thickness is less than or equal to approximately 6 times greater than the minimum outer thickness.

5. The golf club head of claim 1, wherein:

the minimum outer thickness is measured orthogonal to the exterior body contour, and is located between the body front end and the reinforcement outer perimeter.

6. The golf club head of claim 1, wherein:

the trench feature comprises;

an inner section thickness of the inner trench section, measured orthogonal to the exterior body contour;

and

the reinforcement thickness is at least approximately 5 times greater than the inner section thickness.

7. The golf club head of claim 6, wherein:

the trench feature comprises;

an inner section thickness of the inner trench section, measured orthogonal to the exterior body contour;

and

the reinforcement girth is at least approximately 4 times greater than the inner section thickness.

8. The golf club head of claim 1, wherein:

the inner section wall comprises an inner section thickness measured orthogonal to the exterior body contour; and

the reinforcement girth is greater than the inner section thickness of the inner section wall.

9. The golf club head of claim 1, wherein:

an exterior surface of the inner section wall extends along the exterior body contour and comprises a portion of the body section exterior surface.

10. The golf club head of claim 1, wherein:

the trench extends from an exterior surface of the inner section wall to an interior surface of the inner section wall; and

the trench cap is located at least partially within the trench.

11. The golf club head of claim 1, wherein:

the reinforcement structure continuously surrounds the trench.

12. The golf club head of claim 1, wherein:

the trench comprises;

a trench heel end facing towards the body heel end;

a trench toe end facing towards the body toe end; and

a trench front end facing towards the body front end and extended from the trench heel end to the trench toe end;

and

the reinforcement structure is located between the body front end and the trench front end, and continuously extends forward of an entirety of the trench front end.

13. The golf club head of claim 1, wherein:

the trench comprises;

a trench heel end facing towards the body heel end;

a trench toe end facing towards the body toe end; and

a trench front end facing towards the body front end and extended from the trench heel end to the trench toe end;

and

the reinforcement structure extends;

between the trench heel end and the body heel end; and

between the trench toe end and the body toe end.

14. The golf club head of claim 1, wherein:

the trench comprises;

a trench heel end facing towards the body heel end;

a trench toe end facing towards the body toe end;

a trench front end facing towards the body front end and extended from the trench heel end to the trench toe end; and

a trench rear end facing toward the body rear end and extended from the trench heel end to the trench toe end;

and

the reinforcement structure comprises;

a front reinforcement section located between the body front end and the trench front end, continuously extended forward of an entirety of the trench front end; and

one or more rear reinforcement sections located between the trench rear end and the body rear end, and discontinuous from the front reinforcement section.

15. The golf club head of claim 1, wherein:

the trench comprises;

a trench heel end facing towards the body heel end;

a trench toe end facing towards the body toe end; and

a trench front end facing towards the body front end and extended from the trench heel end to the trench toe end;

the reinforcement structure comprises;

a front-heel reinforcement segment extended between the trench heel end and at least one of the body front end or the body heel end; and

a front-toe reinforcement segment extended between the trench toe end and at least one of the body front end or the body toe end;

and

the reinforcement thickness is greater at the front-heel reinforcement segment and the front-toe reinforcement segment than elsewhere in front of the trench front end.

16. The golf club head of claim 1, wherein:

the reinforcement girth is approximately 33% of the reinforcement thickness.

17. The golf club head of claim 1, wherein:

the body front end comprises a strikeface having a non-straight strikeface roll; and

the reinforcement outer perimeter faces the body front end and is substantially parallel to the non-straight strikeface roll.

18. The golf club head of claim 1, wherein:

the body comprises a hosel defining a shaft axis and a shaft axis plane comprising the shaft axis;

when the golf club head is at address over a ground plane;

the shaft axis plane is orthogonal to the ground plane; and

at least one of the following is located between the shaft axis plane and the body front end;

a front end of the reinforcement structure;

a front end of the trench;

a rear end of the trench;

or

a rear end of the reinforcement structure.

19. The golf club head of claim 1, wherein:

the trench feature extends into an interior cavity of the body.

20. The golf club head of claim 1, further comprising:

a second trench feature at a second body section of the body;

wherein;

the body section comprises the sole; and

the second body section comprises the crown.

21. The golf club head of claim 1, wherein:

the body section comprises;

a body section interior surface defining an interior body contour of the body section;

the trench feature comprises;

a structure thickness measured, orthogonal to the exterior body contour, from the reinforcement peak to the interior body contour;

and

the structure thickness is approximately 100% to approximately 500% of the minimum outer thickness.

22. A golf club head comprising:

a body comprising a sole, a crown, a body heel end, a body toe end, a body front end, and a body rear end; and

a trench feature at a body section of the body,

the body section comprising at least one of the sole or the crown;

wherein;

the trench feature comprises;

a trench cap having a specific gravity of less than 2, and a hardness of approximately less than 90 Shore A;

an inner trench section comprising a trench and an inner section wall bounding the trench;

a reinforcement structure protruded from the body section and bounding the inner trench section;

wherein

the reinforcement structure is separated from the trench cap by the inner section wall;

the reinforcement structure comprises;

a reinforcement inner perimeter adjacent to the inner trench section;

a reinforcement outer perimeter opposite the reinforcement inner perimeter; and

a reinforcement peak protruded between the reinforcement inner perimeter and the reinforcement outer perimeter;

the body section comprises;

a body section exterior surface defining an exterior body contour of the body section, wherein the body section exterior surface is discontinuous at the trench feature and extrapolates the discontinuous segment at the trench feature; and

a minimum outer thickness, located outside the reinforcement outer perimeter, and measured orthogonal to the exterior body contour;

the trench feature further comprises;

a reinforcement thickness measured, orthogonal to the exterior body contour, from the reinforcement peak to the exterior body contour; and

the reinforcement structure protrudes past the minimum outer thickness into the body;

the reinforcement structure protrudes past the inner trench section into the body; and

the reinforcement thickness is at least approximately 3 times greater than the minimum outer thickness.

23. The golf club head of claim 22, wherein:

the trench feature comprises;

a reinforcement girth measured, orthogonal to the reinforcement thickness, between the reinforcement inner perimeter and the reinforcement outer perimeter;

the reinforcement girth is approximately 33% of the reinforcement thickness;

the reinforcement girth is at least approximately 1.5 times greater than the minimum outer thickness;

the minimum outer thickness is measured orthogonal to the exterior body contour, and is located between the body front end and the reinforcement outer perimeter;

an exterior surface of the inner section wall extends along the exterior body contour and comprises a portion of the body section exterior surface;

the trench extends from an exterior surface of the inner section wall to an interior surface of the inner section wall;

the inner section wall comprises a inner section thickness measured orthogonal to the exterior body contour;

the reinforcement girth is greater than the inner section thickness;

the trench comprises;

a trench heel end facing towards the body heel end;

a trench toe end facing towards the body toe end; and

a trench front end facing towards the body front end and extended from the trench heel end to the trench toe end;

the reinforcement structure is located between the body front end and the trench front end, and continuously extends;

forward of an entirety of the trench front end;

between the trench heel end and the body heel end; and

between the trench toe end and the body toe end;

the body comprises a hosel defining a shaft axis and a shaft axis plane comprising the shaft axis; and

when the golf club head is at address over a ground plane;

the shaft axis plane is orthogonal to the ground plane; and

at least one of the following is located between the shaft axis plane and the body front end;

a front end of the reinforcement structure;

a front end of the trench;

a rear end of the trench;

or

a rear end of the reinforcement structure.

24. A method comprising:

providing a body of a golf club head,

the body comprising a sole, a crown, a body heel end, a body toe end, a body front end, and a body rear end;

and

providing a trench feature at a body section of the body,

the body section comprising at least one of the sole or the crown;

wherein;

the trench feature comprises;

a trench cap having a specific gravity of less than 2, and a hardness of approximately less than 90 Shore A;

an inner trench section comprising a trench and an inner section wall bounding the trench;

a reinforcement structure protruded from the body section and bounding the inner trench section;

wherein

the reinforcement structure is separated from the trench cap by the inner section wall;

the reinforcement structure comprises;

a reinforcement inner perimeter adjacent to the inner trench section;

a reinforcement outer perimeter opposite the reinforcement inner perimeter; and

a reinforcement peak protruded between the reinforcement inner perimeter and the reinforcement outer perimeter;

the body section comprises;

a body section exterior surface defining an exterior body contour of the body section, wherein the body section exterior surface is discontinuous at the trench feature and extrapolates the discontinuous segment at the trench feature; and

a minimum outer thickness, located outside the reinforcement outer perimeter, and measured orthogonal to the exterior body contour;

the trench feature further comprises;

a reinforcement thickness measured, orthogonal to the exterior body contour, from the reinforcement peak to the exterior body contour; and

a reinforcement girth measured, orthogonal to the reinforcement thickness, between the reinforcement inner perimeter and the reinforcement outer perimeter;

the reinforcement structure protrudes past the minimum outer thickness into the body;

the reinforcement structure protrudes past the inner trench section into the body; and

the reinforcement girth is at least approximately 1.5 times greater than the minimum outer thickness.

25. The method of claim 24, wherein:

the minimum outer thickness is measured orthogonal to the exterior body contour, and is located between the body front end and the reinforcement outer perimeter;

an exterior surface of the inner section wall extends along the exterior body contour and comprises a portion of the body section exterior surface.