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golf club head

A golf club head and ball hitting technology, applied in golf balls, golf clubs, rackets, etc., can solve the problems of decreased bonding strength of face members, decreased durability and bonding strength of bottom members, shortened welding time, etc. Effect of heat transfer, improvement of bond strength and durability, avoidance of decrease in bond strength

Active Publication Date: 2016-09-14
DUNLOP SPORTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] If the thickness (t) of the bottom member (d) is large and welding takes a long time, the heat during welding is transferred to the filler metal (e) that secures the face member (c) to the main member, so the face member (c) the bond strength will decrease
On the other hand, if the thickness (t) of the bottom member (d) is reduced to shorten the welding time, the durability and bonding strength of the bottom member (d) will decrease

Method used

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Embodiment Construction

[0041] Embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0042] exist Figure 1-4 , the golf ball 1 according to the embodiment of the present invention is in its standard state.

[0043] Here, the standard state means that the club head is set to be at the horizontal plane HP so that the axis CL of the shaft (not shown) is at the vertical plane VP while being inclined at a loft angle α with respect to the head and at the club face at the sweet spot SS. 2A forms a loft angle β with respect to the head. In the case of the head alone, the center line of the shaft insertion hole 7a described below is used instead of the axis CL of the shaft. The inclination β is greater than 0 degrees. The club face angle is set to 0.

[0044] In this application including specification and claims, unless otherwise stated, the size, position, direction, etc. of the club head are based on the standard state.

[0045] The...

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PUM

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Abstract

A hollow golf club head comprising a body member having a face opening and a sole opening, a face member brazed / welded to the body member to close the face opening, and a face member brazed / welded / welded to the body member to close the face opening. Bottom member that closes the bottom opening. The body member has a thin front edge portion that is open at the bottom and a thick thermal barrier portion between the thin front edge portion and the face portion. The bottom member has a front edge portion connected to the front edge portion of the bottom opening and a thicker bottom reinforcement portion behind it. The thickness of the front edge portion of the bottom member and the thickness of the front edge portion of the bottom opening are not less than 0.5 mm and less than 2.5 mm. The thickness of the bottom reinforcing part and the thickness of the heat blocking part are 2.5 mm to 10.0 mm.

Description

technical field [0001] The present invention relates to a golf club head in which joint strength between a main body member and a face member and between a main body member and a sole member can be increased and which has good durability. Background technique [0002] Currently, there is proposed a golf club head in which structural members made of a material different from that of the main body member are used for the sole portion, the face portion, etc., for improving the center of gravity of the head. position and moment of inertia of the head, etc. To fix such structural elements to the body member, brazing, welding or welding is used, depending on the materials. [0003] For example, in Figure 7 In the case of the golf club head (a) shown, the method of fixing the components is to first weld or weld the face component (c) to the body component (b), and then weld the sole component (d) to the body component ( b) wherein the golf club head (a) consists of a body member...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A63B53/04A63B102/32
CPCA63B53/04A63B53/0466A63B53/0412A63B53/042A63B53/0408A63B53/0416A63B53/0437A63B53/0433A63B60/02A63B2102/32A63B53/0458A63B60/00
Inventor 西尾公良
Owner DUNLOP SPORTS CO LTD