Putter head

a technology of putter head and putter head, which is applied in the field of putter head, can solve the problems of difficult to grasp the distance of the putt, dull hitting sound,
US20070099725A1Inactive Publication Date: 2007-05-03BRIDGESTONE SPORTS
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
BRIDGESTONE SPORTS
Publication Date
2007-05-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

A putter head that includes: a head body having a face portion; and a face insert fitted in the face portion, the face insert including: a high-hardness portion that forms a hitting surface, and a low-hardness portion jointed to the high-hardness portion and having a hardness lower than that of the high-hardness portion. The Shore D hardness of the high-hardness portion is 30 or more, the Shore D hardness of the low-hardness portion is 10 or more, and a difference between the Shore D hardness of the high-hardness portion and the Shore D hardness of the low-hardness portion is 5 or more.
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Description

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to a putter head with a face insert fitted in a face portion of a head body.

[0003] 2. Description of the Related Art

[0004] Conventionally, a putter head has been proposed in which a face insert made of a material different from that of a head body is fitted in a face portion of the head body. For example, JP-A-2004-236985 discloses a putter head in which a face insert having a layered structure integrally including a rubber elastic body layer, a sintered metal layer, and a fluororesin layer is fitted in the face portion of the head body. In addition, JP-A-2005-124730 discloses a putter head in which an elastic body-made face insert whose thickness increases gradually from the side of the vicinity of a sweet spot of the head toward a peripheral edge side is fitted in a face portion of a head body. SUMMARY OF THE INVENTION

[0005] The above-described putter head with the face insert fitt...

Claims

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