Golf club head

• US 20060281582A1
• Filed: 04/24/2006
• Published: 12/14/2006
• Est. Priority Date: 06/13/2005
• Status: Active Grant

• Current Assignee: SRI Sports Limited (Sumitomo Rubber Industries Limited)
• Original Assignee: SRI Sports Limited (Sumitomo Rubber Industries Limited)
• Inventors: Sugimoto, Yasushi
• Granted Patent: US 7,431,665 B2
• Time in Patent Office: Days
• US Class Current: 473/346
• 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 53/047 iron-type
• CPC Class Codes: A63B 60/00 Details or accessories of golf clubs, bats, rackets or the like

Abstract

A golf club head comprises a face plate and a head main body to which the face plate is attached so as to from a hollow behind the face plate. The face plate comprises a flange and a main portion having a front surface, rear surface and circumferential surface, and provided on the corner of the front surface and circumferential surface with a cut-off portion. The flange protrudes from the rear surface and extends along the peripheral edge of the main portion. The head main body provided at the front with an opening into which the face plate is fit. In the opening, a securing groove into which the flange is fit is provided. The securing groove is defined between an inner wall and an outer wall, and the outer wall extends to the front surface and provided at the front end thereof with a hook portion protruding into the above-mentioned cut-off portion.

Claims

1. A golf club head comprising

a face plate and

a head main body to which the face plate is attached so as to from a hollow behind the face plate,

the face plate comprising a main portion and a flange, the main portion having a front surface, rear surface and circumferential surface, and provided on the corner of the front surface and circumferential surface with a cut-off portion, the flange protruding from the rear surface and extending along the peripheral edge of the main portion,

the head main body provided at the front with an opening into which the face plate is fit, wherein

a securing groove into which the flange is fit is provided in the opening, the securing groove is defined between an inner wall and an outer wall, and the outer wall extends to said front surface and provided at the front end thereof with a hook portion protruding into said cut-off portion.

2. The golf club head according to claim 1, wherein

said inner wall extends toward the face plate but terminates before the rear surface.

3. The golf club head according to claim 1, wherein

said inner wall extends toward the face plate so that the front end thereof reaches to the rear surface.

4. The golf club head according to claim 3, wherein

said front end has an inside corner cut off to reduce the contact area with the rear surface.

5. The golf club head according to claim 1, wherein

said flange and securing groove are provided continuously along the peripheral edge of the face plate.

6. The golf club head according to claim 1, wherein

the cut-off portion and hook portion are provided continuously along the peripheral edge of the face plate.

7. The golf club head according to claim 1, wherein

the outer wall has a thickness (W1) in a range of not more than 4.0 mm.

8. The golf club head according to claim 1, wherein

the flange has a thickness (P1) in a range of not more than 4.0 mm.

9. The golf club head according to claim 1, wherein

the contact length (Lc) of the inner wall with the flange is more than 1.0 mm.

10. The golf club head according to claim 1, wherein

the hook portion is formed by plastic deformation.

11. A golf club head comprising

a face plate defining a club face for hitting a ball, and

a head main body to which the face plate is attached so as to from a hollow behind the face plate such that a rear surface of the face plate is exposed to the hollow, wherein

the face plate is provided along an upper edge and a lower edge thereof with a backwardly protruding flange, the flange having:

a rear end surface;

an outer surface extending from the rear end surface towards a front surface of the face plate; and

an inner surface extending from the rear end surface to said rear surface of the face plate, and

the head main body is provided with a face-plate mount portion having a face which supports;

said outer surface of the flange;

said rear end surface of the flange;

at least a rear end edge part of said inner surface of the flange; and

a corner of the face plate.