Golf club set

a golf club and set technology, applied in the field of golf club sets, can solve the problems of excessive vibration, difficulty in hitting the average golfer, and the difficulty of the average golfer to properly swing the club, so as to reduce the amount of “peeling

Inactive Publication Date: 2008-12-25
COBRA GOLF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011]The first silicone is attached to the interior wall by an adhesive that is brushed on the surface. However, an important design concept is the omission of adhesive on the interior surface around an area where the sole and bottom face are formed. This allows the relatively hard first silicone to shrink and expand in the no-adhesive zone rather than on the exposed side where the softer second silicone is placed. This reduction of shrinkage at the outer part of the first silicone reduces the amount of “peeling,” or pulling away, between the two silicones and / or between the silicone material and the cavity walls.

Problems solved by technology

Therefore, the club heads of the long irons have a smaller strike face surface area than the short irons and are typically more difficult for the average golfer to hit consistently well.
For example, if the club head of a three iron is increased in size and weight, the club may become difficult for the average golfer to properly swing.
Another problem area for the average golfer is that of excess vibration resulting from an off center impact with the golf ball.
In addition to inaccuracy of the shot, vibrations are indicative of a less than ideal transfer of energy from the club to the ball, and consequently represent inefficiency in the club head.

Method used

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Examples

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Embodiment Construction

[0019]Referring to FIGS. 1-2, golf club head 10 is constructed in accordance with a preferred embodiment of this invention. It includes a cavity back body 12, preferably cast, having a front striking face 14, interior surface 16, a hosel portion 18, a heel portion 20, a toe portion 22, an upper edge 24 and lower edge 26. The body 12 includes a cavity 28 that is defined by the interior surface 16.

[0020]In the preferred embodiment, the cavity 28 is preferably formed in the body 12 during the casting process, but may also be formed subsequently by machining. Cavity 28 is substantially filled with a hot molded silicone. The hot molded silicone is disposed into the cavity 28 in two separate shots. The first shot is of a precise pre-cut amount of relatively hard hot molded silicone 34, which when disposed is contiguous to a substantial portion of the interior surface 16 of the body 12. The first silicone has a Shore A hardness between about 70 to 80, preferably 80, which in addition to sh...

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PUM

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Abstract

A set of golf clubs having a plurality of construction types. The clubs of each construction type are constructed to have a volumetric bias in a pre-selected range.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This is a continuation-in-part of U.S. patent application Ser. No. 11 / 766,824, filed on Jun. 22, 2007, now pending, the disclosure of which is incorporated herein by reference in its entirety.FIELD OF THE INVENTION[0002]The present invention generally relates to a set of golf clubs and, more particularly to a set of golf clubs including club heads having volumetric bias in pre-selected ranges.BACKGROUND OF THE INVENTION[0003]The individual golf club heads in a set typically increase progressively in strike face surface area and weight as the clubs progress from the long irons to the short irons. Therefore, the club heads of the long irons have a smaller strike face surface area than the short irons and are typically more difficult for the average golfer to hit consistently well. For conventional club heads, this arises at least in part due to the smaller sweet spot of the corresponding smaller strike face.[0004]To help the average golfer ...

Claims

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Application Information

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IPC IPC(8): A63B53/00A63B53/04
CPCA63B53/04A63B53/047A63B53/0475A63B60/00A63B2053/0412A63B2209/00A63B60/54A63B2053/0408A63B53/0412A63B53/0408A63B60/02
Inventor CLAUSEN, KARL A.RICE, SCOTT A.
Owner COBRA GOLF
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