US20050221910A1 - Graphite-steel golf club shaft - Google Patents

Graphite-steel golf club shaft Download PDF

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Publication number
US20050221910A1
US20050221910A1 US10/818,048 US81804804A US2005221910A1 US 20050221910 A1 US20050221910 A1 US 20050221910A1 US 81804804 A US81804804 A US 81804804A US 2005221910 A1 US2005221910 A1 US 2005221910A1
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US
United States
Prior art keywords
golf club
club shaft
graphite
steel
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/818,048
Inventor
Don Han
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US10/818,048 priority Critical patent/US20050221910A1/en
Publication of US20050221910A1 publication Critical patent/US20050221910A1/en
Abandoned legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/12—Metallic shafts
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/10—Non-metallic shafts
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2209/00—Characteristics of used materials
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/0081—Substantially flexible shafts; Hinged shafts
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06—Handles
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06—Handles
    • A63B60/08—Handles characterised by the material
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06—Handles
    • A63B60/10—Handles with means for indicating correct holding positions
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/48—Details or accessories of golf clubs, bats, rackets or the like with corrugated cross-section

Definitions

  • the present invention relates to a golf club shaft. More specifically, it relates to an improved golf club shaft made of graphite and steel.
  • the golf club shaft is mainly made of graphite or steel.
  • Steel shaft is relatively inexpensive and strong but heavy and inflexible.
  • Graphite shaft is light-weighted and flexible.
  • the golf club shaft made of graphite and steel together is invented. By providing a graphite and steel golf club shaft, golfers can enjoy a strong, light-weighted, and flexible golf club shaft.
  • the main objective of the present invention is to provide golfers with a strong, light-weighted, and flexible golf club shaft. This objective can be accomplished by making the golf club shaft made of both graphite and steel.
  • the steel portion of the present invention will make the golf club shaft strong and the graphite portion of the present invention will make the golf club shaft light-weighted and flexible.
  • Another objective of the present invention is to provide golfers with custom designed shaft to fit individual golfer's needs. Individual golfer might want a certain portion of the golf club shaft to be more flexible, heavier or stronger than the other portion of the golf club shaft. This objective can be accomplished by allocating more, less or no graphite or steel to the certain portion of the golf club shaft.
  • FIG. 1 is a plain view of a golf club shaft.
  • FIG. 2 is a vertical sectional view taken as on line 2 - 2 in FIG. 1 .
  • FIG. 3 is a horizontal cross sectional view of a golf club shaft taken as on line 3 - 3 in FIG. 2 .
  • FIG. 4 is a horizontal cross sectional view of a golf club shaft made according to claim 8 of the present invention.
  • FIG. 5 is a vertical sectional view of a golf club shaft made according to claim 4 of the present invention.
  • FIG. 6 is a horizontal cross sectional view of a golf club shaft made according to claim 4 of the present invention.
  • a golf club shaft 11 is consisted of two layers. One is an outer layer 12 , and the other is an inner layer 13 . A connecting face 15 of the inner layer is tightly connected to a connecting face 14 of the outer layer. Little dents 16 on the surface of the connecting face of the inner layer are created to reinforce tight connection between the two layers.

Abstract

A golf club shaft is designed to be strong, light-weighted and flexible and to fit individual custom needs. The shaft is made of both graphite and steel. The inner layer of the golf club shaft could be steel or graphite, outer layer of the golf club shaft also could be steel or graphite, any portion of the shaft could be made of steel only or graphite only, and/or the ratio to the graphite and steel could vary depending on the need of the golfers. Steel layer could be made of coiled steel wire springs.

Description

    FIELD OF THE INVENTION
  • The present invention relates to a golf club shaft. More specifically, it relates to an improved golf club shaft made of graphite and steel.
    • BACKGROUND OF THE INVENTION
  • Currently, the golf club shaft is mainly made of graphite or steel. Steel shaft is relatively inexpensive and strong but heavy and inflexible. Graphite shaft is light-weighted and flexible. To compensate the heavy weight and inflexibility of the steel shaft, the golf club shaft made of graphite and steel together is invented. By providing a graphite and steel golf club shaft, golfers can enjoy a strong, light-weighted, and flexible golf club shaft.
    • SUMMARY OF THE INVENTION
  • The main objective of the present invention is to provide golfers with a strong, light-weighted, and flexible golf club shaft. This objective can be accomplished by making the golf club shaft made of both graphite and steel. The steel portion of the present invention will make the golf club shaft strong and the graphite portion of the present invention will make the golf club shaft light-weighted and flexible.
  • Another objective of the present invention is to provide golfers with custom designed shaft to fit individual golfer's needs. Individual golfer might want a certain portion of the golf club shaft to be more flexible, heavier or stronger than the other portion of the golf club shaft. This objective can be accomplished by allocating more, less or no graphite or steel to the certain portion of the golf club shaft.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a plain view of a golf club shaft.
  • FIG. 2 is a vertical sectional view taken as on line 2-2 in FIG. 1.
  • FIG. 3 is a horizontal cross sectional view of a golf club shaft taken as on line 3-3 in FIG. 2.
  • FIG. 4 is a horizontal cross sectional view of a golf club shaft made according to claim 8 of the present invention.
  • FIG. 5 is a vertical sectional view of a golf club shaft made according to claim 4 of the present invention.
  • FIG. 6 is a horizontal cross sectional view of a golf club shaft made according to claim 4 of the present invention.
    • DETAILED DESCRIPTION
  • A golf club shaft 11 is consisted of two layers. One is an outer layer 12, and the other is an inner layer 13. A connecting face 15 of the inner layer is tightly connected to a connecting face 14 of the outer layer. Little dents 16 on the surface of the connecting face of the inner layer are created to reinforce tight connection between the two layers.

Claims (8)

1. A golf club shaft, the improvement comprising:
an inner layer,
an outer layer, and
means to connecting said inner layer and said outer layer.
2. The golf club shaft according to claim 1 wherein said inner layer is made of steel and said outer layer is made of graphite.
3. The golf club shaft according to claim 1 wherein said inner layer is made of graphite and said outer layer is made of steel.
4. The golf club shaft according to claim 1 wherein the connecting face of said inner layer has dents.
5. The golf club shaft according to claim 1 wherein said inner layer has holes.
6. The golf club shaft according to claim 1 wherein the connecting face of said outer layer has dents.
7. The golf club shaft according to claim 1 wherein said outer layer has holes.
8. The golf club shaft according to claim 1 wherein any part of said golf club shaft comprising said outer layer only.
US10/818,048 2004-04-06 2004-04-06 Graphite-steel golf club shaft Abandoned US20050221910A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/818,048 US20050221910A1 (en) 2004-04-06 2004-04-06 Graphite-steel golf club shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/818,048 US20050221910A1 (en) 2004-04-06 2004-04-06 Graphite-steel golf club shaft

Publications (1)

Publication Number Publication Date
US20050221910A1 true US20050221910A1 (en) 2005-10-06

Family

ID=35055085

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/818,048 Abandoned US20050221910A1 (en) 2004-04-06 2004-04-06 Graphite-steel golf club shaft

Country Status (1)

Country Link
US (1) US20050221910A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012152880A1 (en) * 2011-05-12 2012-11-15 B.I.G. Bioengineered In Germany Gmbh Shaft for a golf club

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5083780A (en) * 1989-03-28 1992-01-28 Spalding & Evenflo Companies, Inc. Golf club shaft having selective reinforcement
US5324032A (en) * 1990-12-27 1994-06-28 Maruman Golf Kabushiki Kaisha Golf club shaft
US5810676A (en) * 1996-03-07 1998-09-22 Emhart Inc. Lightweight shaft
US6860821B2 (en) * 2000-12-25 2005-03-01 Maimiya-Op Co., Ltd. Golf shaft, forming method therefor and golf club

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5083780A (en) * 1989-03-28 1992-01-28 Spalding & Evenflo Companies, Inc. Golf club shaft having selective reinforcement
US5324032A (en) * 1990-12-27 1994-06-28 Maruman Golf Kabushiki Kaisha Golf club shaft
US5810676A (en) * 1996-03-07 1998-09-22 Emhart Inc. Lightweight shaft
US6860821B2 (en) * 2000-12-25 2005-03-01 Maimiya-Op Co., Ltd. Golf shaft, forming method therefor and golf club

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012152880A1 (en) * 2011-05-12 2012-11-15 B.I.G. Bioengineered In Germany Gmbh Shaft for a golf club

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STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION