Golf club head
First Claim
Patent Images
1. A wood or iron golf club head comprising:
- a plate wall made of a metal having a front face for striking a ball and a back face opposite said front face;
said back face having a plurality of ridges projecting rearwardly from the back face;
said ridges including one of vertical ridges, horizontal ridges and both vertical and horizontal ridges;
said ridges being disposed at least in an area behind a sweet spot area of the front face;
said ridges having top portions which are semicircular in cross section and said ridges defining troughs therebetween with said troughs having bottoms which are semicircular in cross section such that said ridges define circular convexities and circular concavities; and
said ridges having a height in a range of 1 to 5 mm and said ridges being spaced at intervals in a range of 2 to 10 mm.
3 Assignments
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Accused Products
Abstract
An enlarged golf club head has a front wall decreased in thickness, which is sufficient strength, easy to menufacture, and has no increase in total weight. It is a wood or iron golf club head with a plate wall made of a metal, a front side of which provides a front wall having a ball striking front face and a back face at the opposite side thereof, the back face having a plurality of ridges projecting rearwardly of the back face. The ridges extend vertically, horizontally or in both directions of the club head and are disposed at a back of at least a sweet spot of the front face.
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Citations
16 Claims
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1. A wood or iron golf club head comprising:
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a plate wall made of a metal having a front face for striking a ball and a back face opposite said front face; said back face having a plurality of ridges projecting rearwardly from the back face; said ridges including one of vertical ridges, horizontal ridges and both vertical and horizontal ridges; said ridges being disposed at least in an area behind a sweet spot area of the front face; said ridges having top portions which are semicircular in cross section and said ridges defining troughs therebetween with said troughs having bottoms which are semicircular in cross section such that said ridges define circular convexities and circular concavities; and said ridges having a height in a range of 1 to 5 mm and said ridges being spaced at intervals in a range of 2 to 10 mm. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A wood or iron golf club head comprising:
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a plate wall made of a metal having a front face for striking a ball and a back face opposite said front face; said back face having a plurality of ridges projecting rearwardly from the back face; said ridges including one of horizontal ridges and both vertical and horizontal ridges; said ridges being disposed in a central area behind a sweet spot area of the front face and in a surrounding area surrounding said central area; at least one of said horizontal ridges extending through both said central area and said surrounding area; and said central area including additional ones of said horizontal ridges, which are limited to said central area, resulting in a horizontal ridge density of said central area being greater than a horizontal ridge density of said surrounding area. - View Dependent Claims (8, 9)
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10. A wood or iron golf club head comprising:
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a plate wall made of a metal having a front face for striking a ball and a back face opposite said front face; said back face having a plurality of ridges projecting rearwardly from the back face; said ridges including one of vertical ridges and both vertical and horizontal ridges; said ridges being disposed in a central area behind a sweet spot area of the front face and in a surrounding area surrounding said central area; at least one of said vertical ridges extending through both said central area and said surrounding area; and said central area including additional ones of said vertical ridges, which are limited to said central area, resulting in a vertical ridge density of said central area being greater than a vertical ridge density of said surrounding area. - View Dependent Claims (11, 12)
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13. A wood or iron golf club head comprising:
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a plate wall made of a metal having a front face for striking a ball and a back face opposite said front face; said back face having a plurality of ridges projecting rearwardly from the back face; said ridges including one of horizontal ridges, vertical ridges and both vertical and horizontal ridges; said ridges being disposed at least in a central area behind a sweet spot area of the front face; and ones of said ridges in said central area having heights increasing in reverse relation to a distance from a center of said central area. - View Dependent Claims (14, 15)
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16. A wood or iron golf club head comprising:
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a plate wall made of a metal having a front face for striking a ball and a back face opposite said front face; said back face having a plurality of ridges projecting rearwardly from the back face; said ridges including one of vertical ridges, horizontal ridges and both vertical and horizontal ridges; said ridges being disposed in at least a central area behind a sweet spot area of the front face; and said ridges having top portions which are semicircular in cross section and said ridges defining troughs therebetween with said troughs having bottoms which are semicircular in cross section such that said ridges define circular convexities and circular concavities.
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Specification