AU621247B1 - Improved golf club construction - Google Patents

Improved golf club construction Download PDF

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Publication number
AU621247B1
AU621247B1 AU64787/90A AU6478790A AU621247B1 AU 621247 B1 AU621247 B1 AU 621247B1 AU 64787/90 A AU64787/90 A AU 64787/90A AU 6478790 A AU6478790 A AU 6478790A AU 621247 B1 AU621247 B1 AU 621247B1
Authority
AU
Australia
Prior art keywords
shaft
neck
golf club
head
club head
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.)
Ceased
Application number
AU64787/90A
Inventor
Kun-Nan Lo
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
Priority claimed from GB9022577A external-priority patent/GB2248785B/en
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of AU621247B1 publication Critical patent/AU621247B1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/86—Incorporated in coherent impregnated reinforcing layers, e.g. by winding
    • 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
    • A63B53/002—Clubs made of composite, plastics or rubber materials, with integral head and shaft
    • 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
    • A63B53/02—Joint structures between the head and the shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/84—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks by moulding material on preformed parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/52—Sports equipment ; Games; Articles for amusement; Toys
    • B29L2031/5227—Clubs

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Golf Clubs (AREA)

Description

.i.
i i 2^ f0 F or m 1 0 COMMONWEALTH OF AUSTRAL RJ A- Farm PATENTS ACT 1952-69 L ,4 i COMPLETE SPECIFICATION
(ORIGINAL)
Class Int. Class Application Number: Lodged: Complete Specification Lodged: Accepted: Published: Priority Related Art ame of Applicant [4ame of Applicant KUN-NAN LO b Address of Applicant Actual Inventor Address for Service No. 33, Hsiang-Ho Rd., Li-Lin Tsun, Tan-Tsu Hsiang, Taichung Hsien, Taiwan, Republic of China KUN-NAN LO WATERMARK PATENT TRADEMARK ATTORNEYS.
LOCKED BAG NO. 5, HAWTHORN, VICTORIA 3122, AUSTRALIA Complete Specification for the invention entitled: IMPROVED GOLF CLUB CONSTRUCTION The following statement is a full description of this invention, including the best method of performing it known to:- 1 IMPROVED GOLF CLUB CONSTRUCTION This invention relates to a golf club construction, and particularly to the neck portion of a golf club which interconnects the head and the shaft of the golf club.
Conventionally, the head of a golf club is connected to the shaft by receiving one end of the goo shaft in the socket of a neck portion of the head and applying an adhesive to the joint of the neck and the shaft. Generally, the club heads are made of wood,, or 10 metals such as stainless steel and other alloys, or composite plastic materials such as fiber reinforced plastics. However, the shafts are never wooden anymore.
Metallic club heads are generally strong, hard and tough. Such heads are connected to composite plastic shaft "ust by applying an adhesive to the joint of the shaft and the neck of the head as shown in Figure 1.
The strength of the joint depends on the total strength S; of the adhesive, the neck and the golf shaft.
A wooden or composite plastic head has poorer strength, hardness and toughness than metallic heads.
In order to reinforce t r- joint of such a head and the Sshaft, synthetic cords are wound around the neck of the head as shown in Figure 2 after the neck is connected to the shaft. In addition, the neck as well as the socket in the neck should be lengthened so that the
•I
1 1 J 1 m m shaft can extend more deeply into the head.
The joints formed by the methods mentioned above are generally liable to loosen when subjected to torsion forces created by striking balls. When the neck and the shaft are made of different materials, serious deformation might be caused at the joint.
In many cases, the neck or the shaft breaks at their joint.
The object of the invention is to provide a golf club which has a strong interconnection between the head and the shaft capable of enduring a large torque.
6 0 According to the present invention, th, is provided a golf club *0 construction comprising a club head and a shaft, said club head having a tapering neck, 10 said shaft passing through said neck and having a lower end extending into said club head, said golf club construction further having a cured resin impregnated fibrous material wrapping around said neck and an adjacent portion of said shaft in a fashion that provides a gradually decreasing cross-section from said neck to said shaft, said cured resin impregnated fibrous material wrapping having been h a'2 and pressurised to cohesively 15 bond to the club head and the shaft.
a 1 r 3 The present exemplary preferred embodiment will be described in detail with reference to the accompanying drawings, of which: Figure 1 shows the joint of the head and the shaft of a golf club of the prior art; Figure 2 shows the joint of the head and the shaft of another golf club of the prior art; Figures 3 and 4 show an embodiment of the invention.
One embodiment of the invention is shown in figures 3 and 4, having a golf «club head 10' with a tapering neck 11' and a shaft 20' which are separate pieces. The head 10' and the neck 11' are fabricated by using a resin impregnated fibrous material t C t as in the first embodiment. The shaft 20' is also fabricated by using the same material.
However, the head 10' and the shaft 20' are respectively cured and formed in two molds.
t V j0iif r~--rsru~------spaMaa~3 ~Pir~--~y After the head and the shaft are fabricated, a bore 12' is provided in the neck 11'. The shaft is jointed to the neck 11' by fitting the lower end 21' of the shaft 20' into the bore 12' such that it extends into the club head.
Afterwards the joint of the shaft 20', the neck 11' and the head 10' are wrapped with a resin impregnated fibrous material 40 which may be the same as the material used to fabricate the head 10' and the shaft 20' such that there is gradually decreasing cross-section from the neck 11' to the shaft 20'. Then the resin impregnated I t S' fibrous material 40 is cured by heating and pressurizing it in a suitable die. The cured S' resin impregnated fibrous material 40 is thus cohesively bonded to the shaft 20' and the r t St 10 head 10', thereby strengthening the joint between the shaft and the head.
I I r rt: m i 1 f

Claims (1)

1. A golf club construction comprising a club head and a shaft, said club head having a tapering neck, said shaft passing through said neck and having a lower end extending into said club head, said golf club construction further having a cured resin impregnated fibrous maierial wrapping around said neck and an adjacent portion of said shaft in a fashion that provides a gradually decreasing cross-section from said neck to said shaft, said cured resin impregnated fibrous material wrapping having been heated and pressurized in a suitable die to cohesively bond to the club head and the shaft. *6 DATED this 23rd day of October, 1991. KUN-NAN LO WATERMARK PATENT TRADEMARK ATTORNEYS THE ATRIUM t 290 BURWOOD ROAD HAWTHORN VICTORIA 3122 t' AUSTRALIA i M:
AU64787/90A 1990-10-17 1990-10-19 Improved golf club construction Ceased AU621247B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT0209590A AT396336B (en) 1990-10-17 1990-10-17 METHOD FOR PRODUCING A GOLF CLUB
GB9022577A GB2248785B (en) 1990-10-17 1990-10-17 Improved golf club construction
CA002028373A CA2028373C (en) 1990-10-17 1990-10-23 Golf club construction
BE9001004A BE1004640A3 (en) 1990-10-17 1990-10-23 Construction for improved golf club.

Publications (1)

Publication Number Publication Date
AU621247B1 true AU621247B1 (en) 1992-03-05

Family

ID=27421696

Family Applications (2)

Application Number Title Priority Date Filing Date
AU64787/90D Granted AU6478790A (en) 1990-10-17 1990-10-19 Improved golf club construction
AU64787/90A Ceased AU621247B1 (en) 1990-10-17 1990-10-19 Improved golf club construction

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AU64787/90D Granted AU6478790A (en) 1990-10-17 1990-10-19 Improved golf club construction

Country Status (6)

Country Link
AT (1) AT396336B (en)
AU (2) AU6478790A (en)
BE (1) BE1004640A3 (en)
CA (1) CA2028373C (en)
DE (1) DE4034393C2 (en)
FR (1) FR2669233B1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU441889B2 (en) * 1968-08-02 1971-02-04 Brunswick Corporation Head-to-shaft connection for golf club
AU589034B2 (en) * 1986-06-06 1989-09-28 Fiber-Speed International, Inc Golf club shaft and method of manufacture

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1553867A (en) * 1923-05-23 1925-09-15 George H Maas Means of attaching the heads of golf clubs to their sticks
US3253071A (en) * 1960-03-14 1966-05-24 Donald P Hings Method of making a golf club
CA1005478A (en) * 1973-04-27 1977-02-15 Michael A. Taylor Golf club, carbon-graphite shaft therefor, and method of making carbon-graphite tubes
US3873090A (en) * 1973-12-17 1975-03-25 Stanley C Thompson Graphite shaft connection to golf club hosel
FR2523854A1 (en) * 1982-03-25 1983-09-30 Vennin Thierry Golf club shafts with integral moulded plastic head - opt. including fibrous or dense fillers or inserts
US4449707A (en) * 1982-05-22 1984-05-22 Mizuno Corporation Golf club head of carbon fiber reinforced plastic
GB8618300D0 (en) * 1986-07-26 1986-09-03 Align Eng Ltd Golf clubs
US4936582A (en) * 1989-02-24 1990-06-26 Kenneth Bernstein Golf club

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU441889B2 (en) * 1968-08-02 1971-02-04 Brunswick Corporation Head-to-shaft connection for golf club
AU589034B2 (en) * 1986-06-06 1989-09-28 Fiber-Speed International, Inc Golf club shaft and method of manufacture

Also Published As

Publication number Publication date
DE4034393C2 (en) 1994-07-14
FR2669233B1 (en) 1994-02-18
FR2669233A1 (en) 1992-05-22
AT396336B (en) 1993-08-25
AU6478790A (en) 1992-03-05
CA2028373A1 (en) 1992-04-24
CA2028373C (en) 1994-10-04
ATA209590A (en) 1992-12-15
BE1004640A3 (en) 1993-01-05
DE4034393A1 (en) 1992-04-30

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