Golf club head
First Claim
1. A golf club head having a hollow interior defined by a face, an upper surface and a sole and side-peripheral surface, comprising;
- three separate metal crusts corresponding to the face, the upper surface and the sole and side-peripheral surface respectively, which are to be forged and combined integrally so that a thickness of the face may be 1.5 to 2.5 mm, a thickness of the upper surface be 0.5 to 1.0 mm and a thickness of the sole and side-peripheral surface be 1.0 to 1.2 mm respectively, said hollow interior having a volume of 240 to 350 cc; and
a shaft mounting pipe integrally provided inside the hollow interior, connected to said neck of a golf club head, said shaft mounting pipe being provided with a mounting protrusion connected to a lower surface crust of the upper crust.
1 Assignment
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Accused Products
Abstract
A golf club head having a high strength and a larger sweet area, which is provided by using light metal such as titanium or titanium alloy. A face crust, an upper crust, a sole and side-peripheral crust are combined together with a neck to form a golf club head. Each crust is formed by forging metal plate of titanium or titanium alloy. The thickness of each crust is adjusted to suitably enlarge a volume of a hollow interior of a golf club head. The hollow interior has a volume of 240 cc or above. According to the invention, the hollow interior of the head is suitably enlarged, ensuring the structural strength of a golf club head so that the distance L between the center of gravity G of the head and the face thereof may be elongated, whereby the sweet area can be enlarged.
225 Citations
3 Claims
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1. A golf club head having a hollow interior defined by a face, an upper surface and a sole and side-peripheral surface, comprising;
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three separate metal crusts corresponding to the face, the upper surface and the sole and side-peripheral surface respectively, which are to be forged and combined integrally so that a thickness of the face may be 1.5 to 2.5 mm, a thickness of the upper surface be 0.5 to 1.0 mm and a thickness of the sole and side-peripheral surface be 1.0 to 1.2 mm respectively, said hollow interior having a volume of 240 to 350 cc; and a shaft mounting pipe integrally provided inside the hollow interior, connected to said neck of a golf club head, said shaft mounting pipe being provided with a mounting protrusion connected to a lower surface crust of the upper crust. - View Dependent Claims (2, 3)
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Specification
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- Resources
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Current AssigneeKabushiki Kaisha Endo Seisakusho
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Original AssigneeKabushiki Kaisha Endo Seisakusho
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InventorsKobayashi, Kenji
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Primary Examiner(s)Passaniti, Sebastiano
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Application NumberUS08/291,188Time in Patent Office525 DaysField of Search273/167 R, 273/167 H, 273/167 F, 273/169, 273/80.2, 273/167 J, 273/167 K, 273/78, 273/170, 273/171, 273/172, 273/173, 273/175, 273/193 R, 273/194 RUS Class Current473/345CPC Class CodesA63B 2209/00 Characteristics of used mat...A63B 53/04 HeadsA63B 53/0408 characterised by specific d...A63B 53/0412 VolumeA63B 53/0416 Heads having an impact surf...A63B 53/0466 wood-typeA63B 60/00 Details or accessories of g...
