IP Library Granted Patent US 11,679,309
Granted Patent B2
US 11,679,309 · App. 15/833,623 · Granted Jun 20, 2023

Golf club head

Inventors: Masahide Onuki (Kobe, JP); Hiroshi Hasegawa (Kobe, JP)
Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
A63B53/04A63B53/0466A63B60/52A63B53/042A63B53/047A63B53/0412A63B53/0458A63B53/0487
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Quick Facts
Patent No.
US 11,679,309
App. No.
15/833,623
Granted
Jun 20, 2023
Kind
B2
Abstract

A head 2 includes a head body h 1 , a face part Fp 1 , and a connecting part Cn 1 . The face part Fp 1 includes a face surface f 1 and a face back surface f 2 . The connecting part Cn 1 connects the face back surface f 2 of the face part Fp 1 and the head body h 1 to each other. The connecting part Cn 1 may be provided at a position separated from a peripheral edge of the face back surface f 2 . The peripheral edge of the face back surface f 2 may be separated from the head body h 1 . The face part Fp 1 may include a face middle region R 1 and a face peripheral region R 2 . The connecting part Cn 1 may be provided only in the face middle region R 1.

Claims (53)

1. A golf club head comprising:

a head body having a sole, a top portion and a front portion with a front surface;

a face part; and

at least one connecting part,

wherein

the face part includes a face front surface as a hitting face and a face back surface wherein the face part has a uniform thickness;

the connecting part connects the face back surface and the head body front surface to each other;

the connecting part is provided at a position apart from a peripheral edge of the face back surface;

a peripheral edge of the face back surface is separated from the head body by a clearance of 0.2 mm or greater and 10 mm or less between the face back surface and the head body front surface;

no hollow space is present between the face front surface and the face back surface such that the face part is solid;

the face front surface has a face middle region that is defined as an inner side region of an ellipse A having: a center positioned at a center of the face front surface; a major axis which is half a width in a toe-heel direction of the face front surface; and a minor axis which is half a width in an up-down direction of the face front surface;

the face front surface has a face peripheral region that is defined as an outer side region of the ellipse A; and

when an average CT value in the face middle region is represented by CT1, and an average CT value in the face peripheral region is represented by CT2, then CT2 is greater than CT1.

2. A golf club head comprising:

a head body having a sole, a top portion and a front portion with a front surface;

a face part; and

at least one connecting part,

wherein

the face part includes a face front surface as a hitting face and a face back surface;

the connecting part connects the face back surface and the head body front portion to each other;

the connecting part is provided at a position apart from a peripheral edge of the face back surface;

no hollow space is present between the face front surface and the face back surface such that the face part is solid; and

the connecting part is provided only in an upper region located on an upper side with respect to the face front surface center.

3. A golf club head comprising:

a head body having a sole, a top portion and a front portion with a front surface;

a face part; and

two connecting parts,

wherein

the face part includes a face front surface as a hitting face and a face back surface;

the connecting parts connect the face back surface and the head body front portion to each other;

the connecting parts are provided at a position apart from a peripheral edge of the face back surface; and

no hollow space is present between the face front surface and the face back surface such that the face part is solid.

4. A golf club head comprising:

a head body having a sole, a top portion and a front portion with a front surface;

a face part; and

two or more connecting parts,

wherein

the face part includes a face front surface as a hitting face and a face back surface;

the connecting parts connect the face back surface and the head body front portion to each other;

the connecting parts are provided at positions apart from a peripheral edge of the face back surface; and

no hollow space is present between the face front surface and the face back surface such that the face part is solid.

5. A golf club head comprising:

a head body having a sole, a top portion and a front portion with a front surface;

a face part; and

first and second connecting parts,

wherein

the face part includes a face front surface as a hitting face and a face back surface;

the first and second connecting parts connect the face back surface and the head body front portion to each other;

the first and second connecting parts are provided at a position apart from a peripheral edge of the face back surface;

no hollow space is present between the face front surface and the face back surface such that the face part is solid;

the first connecting part is provided in a toe region located on a toe side with respect to the face front surface center,

the second connecting part is provided in a heel region located on a heel side with respect to the face front surface center; and

a clearance extends between the face part and the head body front portion in an up-down direction while passing between the first connecting part and the second connecting part.

Assignments (2)
MERGER Recorded Dec 12, 2018
From: DUNLOP SPORTS CO. LTD.
To: SUMITOMO RUBBER INDUSTRIES, LTD.
Reel/Frame 047752/0782 →
NUNC PRO TUNC ASSIGNMENT Recorded Dec 4, 2018
From: ONUKI, MASAHIDE; HASEGAWA, HIROSHI
To: DUNLOP SPORTS CO. LTD.
Reel/Frame 047671/0115 →
Priority Claims (1)
JP JP2014-072622 · Mar 31, 2014 · national
Continuity (2)
Continuation In Part 14638657 · Mar 4, 2015
Related Publication 20180093143A1 · Apr 5, 2018
Cited By (1)
US 12,434,112