Golf club set having similar properties

Patent metadata

Field	Value
Publication number	US-2022016494-A1
Application number	US-202117146312-A
Country	US
Kind code	A1
Filing date	Jan 11, 2021
Priority date	May 26, 2015
Publication date	Jan 20, 2022
Grant date	—

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

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 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 clubs include 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 comprise a x-axis, a y-axis, and a z-axis that pass through the 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 comprise 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 the shaft axis,
the y′-axis is perpendicular to the z′-axis and extends toward the 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 hosel origin point to the center of gravity along the x′-axis, and a distance ΔY is measured from the hosel origin point to the center of gravity along the y′-axis;

wherein each of the plurality of iron-type 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 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 have a ratio of a center of gravity location measured from a hosel origin point ΔX to ΔY that is consistent between each of the plurality of iron-type golf club heads, wherein the ratio is within a range of 2.6 to 3.0.

2 . The set of golf clubs of claim 1 , wherein the plurality of iron-type golf clubs comprises two or more of the following:
a first iron-type club having a loft angle in the range of 28 degrees to 34 degrees, a second iron-type club having a loft angle in the range of 32 degrees to 38 degrees, a third iron-type club having a loft angle in the range of 36 degrees to 42 degrees, a fourth iron-type club having a loft angle in the range of 40 degrees to 46 degrees, a fifth iron-type club having a loft angle in the range of 44 degrees to 50 degrees, a sixth iron-type club that having a loft angle in the range of 48 degrees to 54 degrees, a seventh iron-type club having a loft angle in the range of 53 degrees to 60 degrees.

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

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

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

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

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 the hosel axis within a range of 7,200 g*cm 2 and 7,600 g*cm 2 .

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 an x-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 y-axis within about 200 g*cm 2 of each other.

10 . 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

• A63B53/005 Primary

  Club sets · CPC title

• A63B53/047 Primary

  iron-type · CPC title

• A63B53/0408

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

• A63B53/00

  Golf clubs · CPC title

• A63B53/0466

  wood-type · CPC title