Title:
ゴルフクラブヘッド
Document Type and Number:
Japanese Patent JP5502420
Kind Code:
B2
Abstract:
A golf club head according to one or more aspects of the present invention may generally include a strike face, a top portion, a bottom portion, a heel portion, a toe portion, and a hosel having a central axis located in a first imaginary vertical plane. A discrete, at least partially curvilinear stiffening element, having generally vertical side surfaces, may be coupled to at least one of the top portion and the bottom portion to improve the dynamic-excitation response of the club head. Preferably, the stiffening element is oriented such that an imaginary horizontal line intersects at least one of the vertical surfaces at at least two points. Additionally, the stiffening element may have at least two inflection points located along a non-linear path characterized by the vertical projection of one of the side surfaces onto at least one of the bottom portion and the top portion of the club head.
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| JP5830622 | Golf club head |
| JP2007151828 | GOLF CLUB HEAD |
| WO/2010/126729 | GOLF CLUB HEAD OR OTHER BALL STRIKING DEVICE HAVING A REINFORCED OR LOCALIZED STIFFENED FACE PORTION |
Inventors:
Dustin Jay Brecke
Robert jay horror check
Robert jay horror check
Application Number:
JP2009231497A
Publication Date:
May 28, 2014
Filing Date:
October 05, 2009
Export Citation:
Assignee:
Dunlop Sports Co., Ltd.
International Classes:
A63B53/04
Domestic Patent References:
| JP2006204604A | ||||
| JP9173510A | ||||
| JP63264085A | ||||
| JP2005278950A | ||||
| JP2008155000A | ||||
| JP2008086351A | ||||
| JP2009178299A | ||||
| JP10277182A | ||||
| JP2008086337A | ||||
| JP2006513805A |
Foreign References:
| US20050075192 | ||||
| US5649872 |
Attorney, Agent or Firm:
Mitsue Obuchi
Yukio Fuse
Yukio Fuse