Golf club head
US-9017187-B2 · Apr 28, 2015 · US
Golf club head and method for manufacturing same
US9623292B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9623292-B2 |
| Application number | US-201414453696-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 7, 2014 |
| Priority date | Aug 8, 2013 |
| Publication date | Apr 18, 2017 |
| Grant date | Apr 18, 2017 |
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- Title
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Abstract
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A golf club head has a hollow therein and a head volume of not less than 350 cc. The head comprises a head main body and a substantially cup-shaped face member which are united with each other. The face member integrally includes a face portion having a club face for hitting a ball, and a turnback extending backwardly of the head from a peripheral edge of the club face. The inner surface of the face member is provided with a groove extending along the boundary of the turnback with the face portion. The face member is a press-formed part whose turnback is bent by press working.
First claim
Opening claim text (preview).
The invention claimed is: 1. A golf club head having a hollow therein and a head volume of not less than 350 cc and comprising a head main body and a substantially cup-shaped face member which are united with each other, wherein the face member integrally includes a face portion having a club face for hitting a ball, and a turnback extending backwardly of the head from the peripheral edge of the club face, an inner surface on the hollow side, of the face member is provided with a groove extending along the boundary of the turnback with the face portion, the face member is a press-formed part whose turnback is bent by press working, said groove comprises a toe-side groove extending along a toe-side part of the boundary and a heel-side groove extending along a heel-side part of the boundary, and the ratio ta/tb of the thickness ta of the face member at the toe-side groove to the thickness tb of the face member at the heel-side groove is in a range of from 0.3 to 1.0. 2. A golf club head having a hollow therein and a head volume of not less than 350 cc and comprising a head main body and a substantially cup-shaped face member which are united with each other, wherein the face member integrally includes a face portion having a club face for hitting a ball, and a turnback extending backwardly of the head from the peripheral edge of the club face, an inner surface on the hollow side, of the face member is provided with a groove extending along the boundary of the turnback with the face portion, the face member is a press-formed part whose turnback is bent by press working, said groove comprises a toe-side groove extending along a toe-side part of the boundary and a heel-side groove extending along a heel-side part of the boundary, and the thickness ta of the face member at the toe-side groove is less than the thickness tb of the face member at the heel-side groove. 3. A golf club head having a hollow therein and a head volume of not less than 350 cc and comprising a head main body and a substantially cup-shaped face member which are united with each other, wherein the face member integrally includes a face portion having a club face for hitting a ball, and a turnback extending backwardly of the head from the peripheral edge of the club face, an inner surface on the hollow side, of the face member is provided with a groove extending along the boundary of the turnback with the face portion, the face member is a press-formed part whose turnback is bent by press working, said groove comprises a toe-side groove extending along a toe-side part of the boundary and a heel-side groove extending along a heel-side part of the boundary, and the thickness to of the face member at the toe-side groove is 0.5 to 2.0 mm. 4. A golf club head having a hollow therein and a head volume of not less than 350 cc and comprising a head main body and a substantially cup-shaped face member which are united with each other, wherein the face member integrally includes a face portion having a club face for hitting a ball, and a turnback extending backwardly of the head from the peripheral edge of the club face, an inner surface on the hollow side, of the face member is provided with a groove extending along the boundary of the turnback with the face portion, the face member is a press-formed part whose turnback is bent by press working, said groove comprises a toe-side groove extending along a toe-side part of the boundary and a heel-side groove extending along a heel-side part of the boundary, and the toe-side groove is disposed within a region defined on the toe-side of a toe-side vertical plane, and the heel-side groove is disposed within a region defined on the heel-side of a heel-side vertical plane, wherein the two vertical planes are parallel with the front-back direction of the head and trisect a width of the club face measured along a horizontal line extending parallel with the toe-heel direction of the head through the sweet spot of the club face.
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- What does patent US9623292B2 cover?
- A golf club head has a hollow therein and a head volume of not less than 350 cc. The head comprises a head main body and a substantially cup-shaped face member which are united with each other. The face member integrally includes a face portion having a club face for hitting a ball, and a turnback extending backwardly of the head from a peripheral edge of the club face. The inner surface of the…
- Who is the assignee on this patent?
- Dunlop Sports Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification A63B60/00. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Apr 18 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).