Golf club set having similar properties

Patent metadata

Field	Value
Publication number	US-12343605-B2
Application number	US-202117146312-A
Country	US
Kind code	B2
Filing date	Jan 11, 2021
Priority date	May 26, 2015
Publication date	Jul 1, 2025
Grant date	Jul 1, 2025

Abstract

A set of ball striking devices, such as a set golf clubs, having similar characteristics between clubs within the set of clubs such as length, weight, and lie angle. Characteristics can include lengths and lie angle.

First claim

The invention claimed is:

1. A set of golf clubs comprising:
a plurality of iron-type golf clubs, each iron-type golf club comprising:
an iron-type golf club head having a striking face configured for striking a ball, a body extending rearwardly from the striking face, and a face thickness, the body having a top surface, a sole, a heel, and a toe, and a hosel including a hosel axis, wherein the iron-type golf club head is perimeter-weighted and includes a rear cavity;
a shaft configured to engage with the iron-type golf club head at a first end and a grip engaged with the shaft at a second end opposite the first end;
wherein each of the plurality of iron-type golf clubs has a length, a lie angle, a weight, a swing weight, and a center of gravity;
wherein each of the plurality of iron-type golf clubs includes an iron-type golf club ground plane origin point located at the point at which the ground plane and the hosel axis intersect and a hosel origin point located on the hosel axis and coincident with an uppermost edge of the hosel; and
wherein each of the plurality of iron-type golf club heads comprises an x-axis, a y-axis, and a z-axis that pass through the iron-type golf club ground plane origin point; wherein:
the x-axis is parallel to the ground plane and parallel to the striking face;
the y-axis is perpendicular to the x-axis and extending rearwardly from the striking face; and
the z-axis is perpendicular to the ground plane and extending in a direction from the sole to the top surface; and

wherein each of the plurality of iron-type golf clubs further comprises an x′-axis, a y′-axis, and a z′-axis that pass through the hosel origin point; wherein:
the z′-axis extends along the direction of an axis of the shaft,
the y′-axis is perpendicular to the z′-axis and extends toward a rear of the golf club head; and
the x′-axis extends perpendicular to the y′-axis and the z′-axis; and
a distance ΔX is measured from the center of gravity to the z′-axis, along an axis parallel to the x′-axis, and a distance ΔY is measured from the center of gravity to the z′-axis along an axis parallel to the y′-axis;

wherein each of the plurality of iron-type golf clubs has a different loft angle in the range of 23 degrees to 60 degrees;
wherein the lengths are substantially equal; and
wherein the lie angles are substantially equal; and
wherein each iron-type golf club has a different face thickness than all other clubs within the set; and
wherein the plurality of iron type golf clubs comprises:
a first iron-type golf club having a first loft angle and a first face thickness; and
a second iron-type golf club having a second loft angle and a second face thickness;
wherein the second loft angle is greater than the first loft angle; and
wherein the second face thickness is greater than the first face thickness;

wherein a distance between the center of gravity is within 2 mm of a distance between the iron-type golf club ground plane origin point in the y-axis direction for the plurality of iron-type golf clubs; and
wherein each of the iron-type golf club heads has a moment of inertia with respect to the hosel axis within about 200 g*cm 2 of each other;
wherein each of the plurality of iron-type golf club heads has a ratio of a center of gravity location measured from the hosel origin point ΔX to ΔY that is within a range of 2.6 to 3.0;
wherein the first iron-type club has a loft angle in the range of 24 degrees to 28 degrees, and the second iron-type club has a loft angle in the range of 48 degrees to 54 degrees.

2. The set of golf clubs of claim 1 , wherein the iron-type golf clubs have a substantially equal gap distance between each club within the set of golf clubs.

3. The set of golf clubs of claim 1 , wherein the iron-type golf clubs have a length within the range of 36.5 inches to 38.5 inches.

4. The set of golf clubs of claim 1 , wherein the iron-type golf clubs have a substantially equal weight.

5. The set of golf clubs of claim 4 , wherein the iron-type golf clubs have a head weight within the range of 240 grams to 260 grams.

6. The set of golf clubs of claim 1 , wherein each of the iron-type golf club heads has a moment of inertia with respect to the hosel axis within a range of 7,200 g*cm 2 and 7,600 g*cm 2 .

7. The set of golf clubs of claim 1 , wherein each of the iron-type golf club heads has a moment of inertia with respect to an x-axis within about 200 g*cm 2 of each other.

8. The set of golf clubs of claim 1 , wherein each of the iron-type golf club heads has a moment of inertia with respect to a y-axis within about 200 g*cm 2 of each other.

9. The set of golf clubs of claim 1 , wherein each of the iron-type golf club heads has a moment of inertia with respect to a z-axis within about 200 g*cm 2 of each other.

Assignees

• Karsten Mfg Corp

Inventors

• Sander Raymond J
• Boyd Robert M
• Stites John T

Classifications

• A63B53/0408

  characterised by specific dimensions, e.g. thickness · CPC title

• A63B53/005 Primary

  Club sets · CPC title

• A63B53/00

  Golf clubs · CPC title

• A63B53/0466

  wood-type · CPC title

• A63B60/00

  Details or accessories of golf clubs, bats, rackets or the like · CPC title