IP Library Granted Patent US 10,092,806
Granted Patent B2
US 10,092,806 · App. 15/622,826 · Granted Oct 9, 2018

Iron type golf club head

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Quick Facts
Patent No.
US 10,092,806
App. No.
15/622,826
Granted
Oct 9, 2018
Kind
B2
Abstract

An iron-type golf club head 4 comprises: a head main body 10 including a face 2 , a hosel 6 , a sole 4 and a back portion 9 extending upward from the trailing edge Te of the sole; and a weight member 20 having a specific gravity larger than the head main body. The face 2 is provided with score lines 7 extending in the toe-heel direction of the head. The weight member 20 is disposed in the sole and extends in the toe-heel direction across a position in the toe-heel direction corresponding to the center position FC of the score lines. The weight member 20 includes a toe-side first portion 21 extending over the sole 4 and the back portion 9 , and a heel-side second portion 22 extending within the sole 4.

Claims (32)

1. An iron-type golf club head comprising:

a head main body including a face, a hosel, a sole and a back portion extending upward from a trailing edge of the sole, and

a weight member having a specific gravity larger than the head main body,

wherein:

the face is provided with score lines extending in a toe-heel direction of the head,

the weight member is disposed in the sole and extends in the toe-heel direction across a position in the toe-heel direction corresponding to a center position of the score lines,

the weight member integrally includes:

a base plate part formed in the form of a plate and having a width in a front-back direction of the head which is gradually increased toward a toe of the head from the heel-side, and

a rising part extending upward from a part on the toe-side of a rear edge of the base plate part so as to form a part of the back portion, and

the weight member comprises:

a toe-side first portion, as a part in the toe-heel direction having the rising part, extending over the sole and the back portion, and

a heel-side second portion, as a part in the toe-heel direction without the rising part, positioned on a heel-side of the toe-side first portion and extending within the sole.

2. The iron type golf club head according to claim 1 , wherein a maximum thickness of the rising part measured in the front-back direction of the head is larger than a thickness of the base plate part.

3. The iron type golf club head according to claim 2 , wherein a boundary between the toe-side first portion and the heel-side second portion is positioned on a heel-side of the center position of the score lines.

4. The iron type golf club head according to claim 1 , wherein the rising part has an upper edge whose contour is smoothly and convexly curved upward, and a highest point of the contour is positioned on a toe-side of the center position of the score lines.

5. The iron type golf club head according to claim 4 , wherein a boundary between the toe-side first portion and the heel-side second portion is positioned on a heel-side of the center position of the score lines.

6. The iron type golf club head according to claim 1 , wherein a boundary between the toe-side first portion and the heel-side second portion is positioned on a heel-side of the center position of the score lines.

7. An iron-type golf club head comprising:

a head main body including a face, a hosel, a sole and a back portion extending upward from a trailing edge of the sole, and

a weight member having a specific gravity larger than the head main body,

wherein:

the face is provided with score lines extending in a toe-heel direction of the head,

the weight member is disposed in the sole and extends in the toe-heel direction across a position in the toe-heel direction corresponding to a center position of the score lines, and

the weight member integrally includes:

a toe-side first portion extending over the sole and the back portion, and

a heel-side second portion positioned on a heel-side of the toe-side first portion and extending within the sole without protruding into the back portion.

8. The iron type golf club head according to claim 7 , wherein the weight member comprises:

a base plate part extending in the toe-heel direction of the head, while gradually increasing its width in a front-back direction of the head toward the toe of the head from the heel-side, and forming a part of the sole, and

a rising part extending upward from a toe-side portion of the base plate part, and forming a part of the back portion.

9. The iron type golf club head according to claim 8 , wherein a boundary between the toe-side first portion and the heel-side second portion is positioned on a heel-side of the center position of the score lines.

10. The iron type golf club head according to claim 8 , wherein a maximum thickness of the rising part measured in the front-back direction of the head is larger than a thickness of the base plate part.

11. The iron type golf club head according to claim 10 , wherein the rising part has an upper edge whose contour is smoothly and convexly curved upward, and a highest point of the contour is positioned on a toe-side of the center position of the score lines.

Assignments (2)
MERGER Recorded Apr 17, 2018
From: DUNLOP SPORTS CO. LTD.
To: SUMITOMO RUBBER INDUSTRIES, LTD.
Reel/Frame 045959/0204 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 15, 2017
From: ABE, HIROSHI
To: DUNLOP SPORTS CO. LTD.
Reel/Frame 042725/0102 →