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Golf putter

  • US 7,625,299 B2
  • Filed: 09/02/2008
  • Issued: 12/01/2009
  • Est. Priority Date: 10/29/2007
  • Status: Active Grant
First Claim
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1. A golf putter comprising a head, a shaft and a grip,wherein a real loft angle is equal to or greater than one degree and is equal to or smaller than four degrees,a length P (mm) in the front-rear direction of the head is equal to or greater than 30 mm and is equal to or smaller than 100 mm,a state in which the head is stationarily mounted by itself on a horizontal plane H1 is set to be a reference state, a plane which passes through a center of gravity of the head, is perpendicular to the horizontal plane H1 and includes a line in the front-rear direction is set to be a reference plane in the head brought into the reference state, and a section of the head in the reference state along the reference plane is set to be a reference section, andwhen an intersection point of a line which passes through the center of gravity of the head and is perpendicular to the horizontal plane H1 and a sole surface is represented by T1, a line passing through the point T1 and a leading edge point is represented by S1, a point which is present on the sole surface and is provided apart from the line S1 toward a lowermost side is represented by T2, a line which passes through the point T2 and is parallel with the line S1 is represented by S2, a distance between the point T2 and the line S1 is represented by K1 (mm), a line passing through the point T2 and the leading edge point is represented by S3, a distance in the front-rear direction between the point T2 and the leading edge point is represented by L (mm), and a distance in the front-rear direction between the point T1 and the leading edge point is represented by M (mm) in the reference section, an angle θ

  • 1 formed by the line S3 and the horizontal plane H1 is equal to or greater than two degrees and is equal to or smaller than ten degrees, (K1/M) is greater than zero and is equal to or smaller than 0.10, (L/P) is equal to or greater than 0.10 and is equal to or smaller than 0.50, and a lower portion is positioned below the line S1 between the point T1 and the leading edge point.

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