Hybrid golf club shaft

a golf club shaft and hybrid technology, applied in the field of hybrid golf club shafts, can solve the problems of dampening vibration but also stiffening the club, and achieving the effects of moderate swing weight, high torsional stiffness, and optimal overall club performan

Inactive Publication Date: 2003-09-18
FENDEL EDWIN B
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

0034] The present invention provides for a golf club having a shaft of multiple sections which have a linear weight less than that of a conventional steel shaft and which are configured to contribute different properties to the club such that optimal overall club performance is achieved. In particular, high torsional stiffness and moderate swing weight are achieved synergistically by configuring the narrow section of the shaft that connects to the hossel of the head such that its linear weight is less than that of a conventional steel shaft while maintaining comparable torsional stiffness. It has been found that linear weight may be dec

Problems solved by technology

Thus, stiffeners have the synergistic result of not only dampening vibration but al

Method used

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Embodiment Construction

[0055] Referring now to the figures, a discussion of the above features with respect to preferred embodiments is provided below. It should be understood that such embodiments are for illustrative purposes, and should not be construed as limiting the scope of the invention.

[0056] FIG. 1 illustrates a preferred embodiment of a hybrid shaft 1 which can be used with a driver (wood) or an iron. The hybrid shaft 1 comprises a first section 16 and a second section 14. The first section 16 has a hossel end 2 and a joint end 3. The hossel end 2 is connected to a hossel 13 of a club head 6 via a connector 15. The first section has a linear weight less than that of a comparable section of a conventional steel shaft and comprises a material having a shear modulus greater than that of the material of the second section. The second section comprises a lightweight material and has a joint end 4 which connects to the joint end 3 of the first section 16 and a butt end 5.

[0057] The first section impa...

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PUM

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Abstract

A golf shaft for attachment to a hossel of a club head, said shaft comprising: (a) a first section comprising a first material and having a hossel end and a first joint end, said first section having a linear weight no greater than 2.4 g/in; (b) a second section comprising a second material and having a butt end and a second joint end, said second joint end being connected to said first joint end; (c) wherein said second material is less dense than said first material; and (d) wherein said first material has a shear modulus greater than that of said second material.

Description

REFERENCE TO RELATED APPLICATIONS[0001] This application is a continuation-in-part of co-pending U.S. application Ser. No. 08 / 870,625 filed on Jun. 6, 1997, which is hereby incorporated by reference, and also is based on Provisional Application No. 60 / 074,435, filed on Feb. 11, 1998, Provisional Application No. 60 / 103,375, filed on Oct. 7, 1998, and Provisional Application No. 60 / 109,707 filed on Nov. 24, 1998, all of which are hereby incorporated by reference.[0002] This invention relates generally to golf clubs and, more particularly, to a hybrid shaft for improving the performance of golf clubs.STATEMENT OF PROBLEM ADDRESSED BY INVENTION[0003] A modern golf club typically comprises a head connected to a shaft, and a gripping region disposed on the end of the shaft opposite the head. Perhaps more than any other component, the shaft affects overall club performance. It is generally accepted that the optimum golf club shaft should have the following characteristics: (1) lightweight ...

Claims

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Application Information

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IPC IPC(8): A63B53/14
CPCA63B53/14A63B53/02A63B60/54
Inventor FENDEL, EDWIN B.
Owner FENDEL EDWIN B
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