Head for golf putter and golf putter

• US 7,942,758 B2
• Filed: 10/06/2008
• Issued: 05/17/2011
• Est. Priority Date: 12/07/2007
• Status: Active Grant

• Current Assignee: Sumitomo Rubber Industries Limited
• Original Assignee: SRI Sports Limited (Sumitomo Rubber Industries Limited)
• Inventors: Nakamura, Takashi
• Primary Examiner(s): Hunter; Alvin A
• Application Number:
  US12/285,457
• Publication Number:
  US 20090149271A1
• Time in Patent Office: 953 Days
• Field of Search: 473324-350
• US Class Current: 473/340
• CPC Class Codes: A63B 2209/00 Characteristics of used materials
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/0416 Heads having an impact surface provided by a face insert
• CPC Class Codes: A63B 53/0445 Details of grooves or the like on the impact surface
• CPC Class Codes: A63B 53/0487 for putters A63B53/065 takes precedence

Abstract

A golf putter (2) includes a head (4), a grip (6) and a shaft (8). The head (4) has a head body (h1) formed of a metal and a face member (f1) formed by an elastic material. A front surface (Ff) of the face member (f1) constitutes at least a part of a face surface (10). A siping (s1) is provided on a back surface (Bf) of the face member (f1). The siping (s1) is not provided on the front surface (Ff) of the face member (f1). It is preferable that the siping (s1) should be extended with bending. It is preferable that a ratio (Ds/Tf) of a depth (Ds) of the siping (s1) to a thickness (Tf) of the face member (f1) should be equal to or higher than 0.2 and should be equal to or lower than 0.8. It is preferable that a width (Ws) of the siping (s1) should be equal to or smaller than 1.0 mm.

Claims

1. A head for a golf putter comprising a head body formed of a metal and a face member formed of an elastic material,

wherein a front surface of the face member constitutes at least a part of a face surface,

a siping is provided on a back surface of the face member,

the siping is not provided on the front surface of the face member, and

a width Ws of the siping is equal to or smaller than 1.0 mm.

2. A head for a golf putter according to claim 1, wherein the siping has a width Ws of 0 mm.

3. A head for a golf putter according to claim 1, wherein the face member is bonded to the head body using a double-stick tape.

4. A head for a golf putter comprising a head body formed of a metal and a face member formed of an elastic material,

wherein a front surface of the face member constitutes at least a part of a face surface,

a siping is provided on a back surface of the face member,

the siping is not provided on the front surface of the face member, and

a ratio (Ds/Tf) of a depth Ds of the siping to a thickness Tf of the face member is equal to or higher than 0.2 and is equal to or lower than 0.8.

5. A golf putter comprising a head for a golf putter, a shaft and a grip,

wherein the head has a head body formed of a metal and a face member formed of an elastic material,

a front surface of the face member constitutes at least a part of a face surface,

a back surface of the face member is provided with a siping,

the front surface of the face member is not provided with the siping, and

a width Ws of the siping is equal to or smaller than 1.0 mm.

6. A head for a golf putter comprising a head body formed of a metal and a face member having an outer peripheral length P formed of an elastic material,

wherein a front surface of the face member constitutes at least a part of a face surface,

a siping is provided on a back surface of the face member,

the siping is not provided on the front surface of the face member,

the siping has a total length M including the lengths of all siping present, and

a ratio M/P is equal to or higher than 1.