Golf club head and golf club
US6960141B2 · kind B2 · utility
38Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2003 |
| Grant date | Nov 1, 2005 |
| Priority date | — |
| Expiry date | Dec 22, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B53/0433
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A sole portion of a golf club head includes a first portion contacting with ground in address position and a second portion being raised in a direction from the first portion toward a toe portion. The first and second portions are each in a shape of a curved surface convex toward the outside of a head body. An angle of the second portion with respect to the first portion is adjusted such that an angle formed by a first plane contacting with a vertex of the first portion in address position with a prescribed lie angle and a second plane contacting with a vertex of the second portion becomes at least 30° and at most 60°.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.