AU621247B1 - Improved golf club construction - Google Patents
Improved golf club construction Download PDFInfo
- 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
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:
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)
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)
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 |
GB2121296B (en) * | 1982-05-22 | 1986-03-12 | Mizuno Kk | 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 |
-
1990
- 1990-10-17 AT AT0209590A patent/AT396336B/en not_active IP Right Cessation
- 1990-10-19 AU AU64787/90D patent/AU6478790A/en active Granted
- 1990-10-19 AU AU64787/90A patent/AU621247B1/en not_active Ceased
- 1990-10-23 CA CA002028373A patent/CA2028373C/en not_active Expired - Fee Related
- 1990-10-23 BE BE9001004A patent/BE1004640A3/en not_active IP Right Cessation
- 1990-10-29 DE DE4034393A patent/DE4034393C2/en not_active Expired - Fee Related
- 1990-11-20 FR FR9014443A patent/FR2669233B1/en not_active Expired - Fee Related
Patent Citations (2)
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 |
---|---|
AU6478790A (en) | 1992-03-05 |
CA2028373A1 (en) | 1992-04-24 |
ATA209590A (en) | 1992-12-15 |
FR2669233B1 (en) | 1994-02-18 |
DE4034393A1 (en) | 1992-04-30 |
BE1004640A3 (en) | 1993-01-05 |
DE4034393C2 (en) | 1994-07-14 |
CA2028373C (en) | 1994-10-04 |
FR2669233A1 (en) | 1992-05-22 |
AT396336B (en) | 1993-08-25 |
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