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US 6,746,343 B2Granted
Iron golf club head
AssigneeYonex Kabushiki Kaisha
InventorKosaku Yoneyama
Life of this patent
Estimating the term…
Abstract
An iron golf club head includes a head body and a front face plate made of a highly resilient metal which is attached to a front of the head body. A thick-walled portion is formed in the back of the lower central part of the front face plate. Multiple narrow ribs are formed to radially extend from the thick-walled portion toward the upper and lateral peripheral parts of the front face plate, and the ribs have a thickness not substantially exceeding the thickness of the thick-walled portion. Broad thin-walled portions arc formed between the adjacent ribs.
Claims20
A golf club head comprising:
- a head body;
- and
- a front face plate made of a highly resilient metal, said front face plate being attached to a front of said head body, said front face plate including:
- a thick-walled portion formed at a lower central part of said front face plate;
- a plurality of ribs radially extending from said thick-walled portion toward an upper periphery and a lateral periphery of said front face plate, each of said ribs having a thickness not substantially exceeding a thickness of said thick-walled portion;
- and
- a plurality of thin-walled portions formed between said ribs and arranged adjacent to each other, each of said thin-walled portions being wider than each of said ribs, each of said thin-walled portions having an arc-shaped inner end and an arc-shaped outer end having a larger radius than said arc-shaped inner end.
4 more elements
A golf club comprising:
- a golf club head including a head body and a front face plate made of a highly resilient metal, said front face plate being attached to a front of said head body, said front face plate including:
- a thick-walled portion formed at a lower central part of said front face plate;
- a plurality of ribs radially extending from said thick-walled portion toward an upper periphery and a lateral periphery of said front face plate, each of said ribs having a thickness not substantially exceeding a thickness of said thick-walled portion;
- and
- a plurality of thin-walled portions formed between said ribs and arranged adjacent to each other, each of said thin-walled portions being wider than each of said ribs, each of said thin-walled portions having an arc-shaped inner end and an arc-shaped outer end having a larger radius than said arc-shaped inner end.
2 more elements
Dependencies are inferred from the claim text.