Golf club
US-10994180-B2 · May 4, 2021 · US
Golf club
US2021362014A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021362014-A1 |
| Application number | US-202117198787-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 11, 2021 |
| Priority date | May 19, 2020 |
| Publication date | Nov 25, 2021 |
| Grant date | — |
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- Title
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Abstract
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A golf club includes a head, a shaft, and a grip. The head has a center-of-gravity depth of greater than or equal to 23.5 mm. The head has a center-of-gravity distance of less than or equal to 39 mm. The shaft has a forward flex of greater than or equal to 110 mm. When f1 denotes the forward flex of the shaft and f2 denotes a backward flex of the shaft, f2/f1 may be greater than or equal to 0.8 and less than or equal to 0.9. The head may have a volume of greater than or equal to 380 cc. The shaft may have a weight of less than or equal to 50 g.
First claim
Opening claim text (preview).
What is claimed is: 1 . A golf club comprising: a head; a shaft; and a grip, wherein the head has a center-of-gravity depth of greater than or equal to 23.5 mm, the head has a center-of-gravity distance of less than or equal to 39 mm, and the shaft has a forward flex of greater than or equal to 110 mm. 2 . The golf club according to claim 1 , wherein, when f 1 denotes the forward flex of the shaft and f 2 denotes a backward flex of the shaft, f 2 /f 1 is greater than or equal to 0.8 and less than or equal to 0.9. 3 . The golf club according to claim 1 , wherein the head has a volume of greater than or equal to 380 cc. 4 . The golf club according to claim 1 , wherein the shaft has a weight of less than or equal to 50 g. 5 . The golf club according to claim 1 , wherein the head has a weight of less than or equal to 202 g. 6 . The golf club according to claim 1 , wherein the golf club has a weight of greater than or equal to 270 g. 7 . The golf club according to claim 1 , wherein the shaft has a shaft torque of greater than or equal to 5.0 degrees. 8 . The golf club according to claim 1 , wherein the center-of-gravity distance is a distance between a center line of the shaft and a center of gravity of the head measured in a front view of the head. 9 . The golf club according to claim 8 , wherein the center-of-gravity depth is a distance between the center line of the shaft and the center of gravity of the head measured in a face-back direction. 10 . The golf club according to claim 9 , wherein the center-of-gravity depth is greater than or equal to 25.0 mm. 11 . The golf club according to claim 9 , wherein the center-of-gravity distance is less than or equal to 37.0 mm. 12 . The golf club according to claim 9 , wherein a ratio of the center-of-gravity depth to the center-of-gravity distance [the center-of-gravity depth/the center-of-gravity distance] is greater than or equal to 0.64. 13 . The golf club according to claim 9 , wherein a ratio of the center-of-gravity depth to the center-of-gravity distance [the center-of-gravity depth/the center-of-gravity distance] is greater than or equal to 0.68. 14 . The golf club according to claim 7 , wherein the shaft torque is a torsional angle formed when a torque of 13.9 kg-cm is applied to a portion of the shaft extending from a first position spaced 40 mm apart from a tip end of the shaft to a second position 825 mm apart from the first position. 15 . The golf club according to claim 14 , wherein the shaft torque is greater than or equal to 5.3 degrees. 16 . The golf club according to claim 1 , wherein the forward flex is greater than or equal to 120 mm.
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- What does patent US2021362014A1 cover?
- A golf club includes a head, a shaft, and a grip. The head has a center-of-gravity depth of greater than or equal to 23.5 mm. The head has a center-of-gravity distance of less than or equal to 39 mm. The shaft has a forward flex of greater than or equal to 110 mm. When f1 denotes the forward flex of the shaft and f2 denotes a backward flex of the shaft, f2/f1 may be greater than or equal to 0.8…
- Who is the assignee on this patent?
- Sumitomo Rubber Ind
- What technology area does this patent fall under?
- Primary CPC classification A63B53/10. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Thu Nov 25 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).