Golf club head
AssigneeSumitomo Rubber Industries, Ltd.
InventorNaruhiro Mizutani
Life of this patent
Estimating the term…
Abstract
A head 2 includes a face part 4. The face part 4 includes a plurality of constant thickness regions S1 and S2, and a plurality of thickness transition regions R1, R2 and R3. The constant thickness regions include a first constant region S1 and a second constant region S2 which is thinner than the first thickness region S1. The thickness transition regions R1, R2 and R3 which are adjacent to each other is disposed between the first constant region S1 and the second constant region S2. The thickness transition regions adjacent to each other have different thickness change rates from each other.
Claims19
A golf club head comprising a face part, wherein
- the face part includes a plurality of constant thickness regions and a plurality of thickness transition regions,
- the constant thickness regions include a first constant region and a second constant region that is thinner than the first constant region,
- the thickness transition regions are adjacent to each other, are disposed between the first and second constant regions, and include a first transition region and a second transition that is located outside the first transition region, and
- the first and second thickness transition regions have thickness change rates different from each other.
A golf club head comprising a face part, wherein
- the face part includes a plurality of constant thickness regions and a plurality of thickness transition regions,
- the constant thickness regions include a first constant region and a second constant region that is thinner than the first constant region,
- the thickness transition regions are adjacent to each other and are disposed between the first and second constant regions,
- the thickness transition regions have thickness change rates different from each other, and
- first constant region thickness is defined as TS1 (mm), the second constant region thickness is defined as TS2 (mm), and TS2/TS1 is equal to or less than 0.6.
A golf club head comprising a face part, wherein
- the face part includes a plurality of constant thickness regions and a plurality of thickness transition regions,
- the constant thickness regions include a first constant region and a second constant region that is thinner than the first constant region,
- the thickness transition regions are adjacent to each other and are disposed between the first and second constant regions,
- the thickness transition regions have thickness change rates different from each other, and
- when an first constant region area is defined as MS1 (mm2), the second constant region area is defined as MS2 (mm2), and an entire area of a face surface that forms an outer surface of the face part is defined as Mf1 (mm2),
- MS1/Mf1 is equal to or less than 0.20, and MS2/Mf1 is equal to or greater than 0.08.
A golf club head comprising a face part, wherein
- the face part includes a plurality of constant thickness regions and a plurality of thickness transition regions,
- the constant thickness regions include a first constant region and a second constant region that is thinner than the first constant region,
- the thickness transition regions are adjacent to each other and are disposed between the first and second constant regions,
- the thickness transition regions have thickness change rates different from each other, and
- when the face part weight is defined as Wf1 (g), and an entire area of a face surface that forms an outer surface of the face part is defined as Mf1 (mm2),
- Wf1/Mf1 is equal to or less than 0.0112 (g/mm2).
A golf club head comprising a face part, wherein
- the face part includes a plurality of constant thickness regions and a plurality of thickness transition regions,
- the constant thickness regions include a first constant region and a second constant region that is thinner than the first constant region,
- the thickness transition regions are adjacent to each other and are disposed between the first and second constant regions,
- the thickness transition regions have thickness change rates different from each other, and
- there are three thickness transition regions which are adjacent to each other and disposed between the first and second constant regions.
Dependencies are inferred from the claim text.