GB2418621A - Golf shaft connector - Google Patents

Golf shaft connector Download PDF

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Publication number
GB2418621A
GB2418621A GB0421862A GB0421862A GB2418621A GB 2418621 A GB2418621 A GB 2418621A GB 0421862 A GB0421862 A GB 0421862A GB 0421862 A GB0421862 A GB 0421862A GB 2418621 A GB2418621 A GB 2418621A
Authority
GB
United Kingdom
Prior art keywords
handle
head
club
connector
threaded portion
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.)
Withdrawn
Application number
GB0421862A
Other versions
GB0421862D0 (en
Inventor
Graham Parks
Kim Mcloughlin
Derek Biddulph
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.)
KEY CONNECT Ltd
Original Assignee
KEY CONNECT Ltd
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 KEY CONNECT Ltd filed Critical KEY CONNECT Ltd
Priority to GB0421862A priority Critical patent/GB2418621A/en
Publication of GB0421862D0 publication Critical patent/GB0421862D0/en
Priority to PCT/GB2005/003792 priority patent/WO2006037980A1/en
Publication of GB2418621A publication Critical patent/GB2418621A/en
Withdrawn legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00Golf clubs
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00Golf clubs
    • A63B53/005Club sets
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B55/00Bags for golf clubs; Stands for golf clubs for use on the course; Wheeled carriers specially adapted for golf bags
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00Details or accessories of golf clubs, bats, rackets or the like
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2210/00Space saving
    • A63B2210/50Size reducing arrangements for stowing or transport
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00Golf clubs
    • A63B53/007Putters
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B55/00Bags for golf clubs; Stands for golf clubs for use on the course; Wheeled carriers specially adapted for golf bags
    • A63B55/20Bags for golf clubs; Stands for golf clubs for use on the course; Wheeled carriers specially adapted for golf bags with special receptacles for the balls

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Golf Clubs (AREA)

Abstract

A golf club comprises a handle part having a handle and a shaft 2 extending axially therefrom, a head part having a club head and a shaft 3 extending axially therefrom, the handle part and the head part being removably connected to each other, one of the connector parts 4 having an externally threaded portion 6 which extends axially from a shoulder 10, the other of the connector parts 5 having an internally threaded portion 7 which extends axially inwardly from an end abutment 11, wherein the internally threaded portion 7 is axially spaced from the end abutment 11. Also disclosed is a connector part 4,5 with a flat portion (13, figure 1), a golf bag with a sloping bottom compartment (104, figure 4) and a golf bag with a removable handle part compartment (102, figure 4).

Description

241 8621 Sports Apparatus The present invention relates to a two part golf
Club and a bag for accommodating a set of two part golf clubs.
It is a well-known problem that sets of golf clubs can be heavy and bulky to transport, both on the golf course and during travel. For example older players may find it difficult to lift a heavy bag and it can be difficult to fit a set of golf clubs into a small car or to take them on airplanes.
In order to tackle this problem, there have been many attempts to design golf clubs with interchangeable heads. These golf clubs are formed from two parts, a handle part and a head part. Typically, a set of such golf clubs will comprise a single handle part which can be connected to any one of a plurality of head parts, each head part having different properties such as loft ^ angle or length of shaft. In this way the user can carry a range of different clubs with significantly reduced weight and bulk. Any of the standard golf club heads (woods, irons, wedges, putters, etc.) can be included in the set.
Such sets of two piece golf clubs are typically accompanied by a golf bag which is similarly reduced in size and weight.
US 4,340,227, US 3,829,092 and US 3,848,737 show examples of previous two piece golf sets. US 4,340,227 shows a two piece club with a handle part and interchangeable head parts that can be screwed onto the handle part. US 3,829,092 shows a telescopic handle which is clipped into the chosen head and US 3,484,737 shows a handle which is screwed onto the chosen head.
All of the above documents also disclose a suitable _--ying case for the club set.
There have been many other designs of two piece golf clubs with a variety of methods for attaching the handle to the various heads. However none to date have been satisfactory for anything other than low standard amateur play.
At the other end of the scale, the good amateur or the professional golfer has much stricter criteria for his or her clubs. In particular they look for clubs which have a good feel and flex when they are swung. The swing weight must be right and the performance of the club must live up to their expectations (e.g. how far they can hit a ball with the club).
The choice of clubs is a very personal one and, as with most sports, players prefer to play with their own set of clubs. Players will travel large distances to -:'st particular golf courses and it therefore becomes necessary to be able to transport sets of golf clubs over large distances. This can be problematic where several sets of clubs are to be carried in a car with limited luggage space or when clubs are to be taken on airplanes where there are limitations or excess charges for weight or oversized baggage.
It is therefore highly desirable to provide a set of two piece golf clubs which meet high quality requirements in terms of feel and flex and performance and where the set is also small enough and light enough to be easily carried and transported. It is also therefore highly desirable to provide a bag for carrying and transporting that set of clubs.
The failure of previous two piece golf clubs to meet the above standards has frequently been to do with the connection between the handle and the club head. Various me;._-s of attaching the handle to the club head have been tried including a variety of clips and screw fits.
In seeking to establish a firm connection between the handle and the head (and therefore an efficient transfer of power from the handle to the head) , the elaborate design of many of these connections alters the feel and flex of the club and in so doing makes the club unattractive to users. Alternatively, minimizing the effect of the connection on the feel and flex of the club has resulted in connections which are not sufficiently strong or which do not transmit the power well enough from the handle to the club head.
With connections based on a screw fit, it is imperative to get a tight fit between the two parts.
Such connections typically comprise a threaded male part and an internally threaded female part. Both parts also c:.pr-se flat surfaces which abut against each other when the parts are screwed together.
If the male part is threaded all the way up to the shoulder surface, it becomes impossible to screw the female part all the way to the end. Thus the flat surfaces cannot abut against each other and the connection is weak and power cannot be transmitted efficiently down the length of the club. This problem is avoided in the clubs of US 4,340,227 in which the male connector part is not threaded all the way up to the shoulder. Instead, an axially exending portion of reduced diameter is left between the shoulder and the start of the thread. Thus when the female part is screwed onto the male part, the shoulders can abut firmly against one another. However the separation of the thread from the shoulder by the reduced diameter portion leaves the connection too weak to be practical.
According to a first aspect, the present invention provides a golf club comprising a handle part having a handle and a shaft extending axially therefrom, a head part having a club head and a shaft extending axially therefrom, the handle part and the head part being removably connected to each other, one of the connector parts having an externally threaded portion which extends axially from a shoulder, the other of the connector parts having an internally threaded portion which extends axially inwardly from an end abutment, wherein the internally threaded portion is axially spaced from the end abutment.
Because of this simple design, the feel and flex of the club are not significantly altered and because the connection allows a firm abutment of the two surfaces, power can be efficiently transferred from the handle part tc the head part resulting in a high quality performance.
In the preferred embodiments of the invention the internally threaded portion is axially spaced from the end abutment by a region of greater radius than the internally threaded portion. This provides a region in which dirt pushed out from between the threads during mating can collect, rather than being deposited directly between the shoulder and the end abutment. This is an important benefit in that golf is an outdoor game where the club parts will be exposed to dirt and the like, for example the sand of golf course bunkers.
The region of greater radius may have the same radius over its axial extent. Preferably however, the region of greater radius slopes outwardly from the l internally threaded portion towards the end abutment.
This arrangement avoids sharp corners which would create a weakness, particularly having regard to the bending loads applied to golf clubs. It also strengthens the connection b; maintaining a greater quantity of material adjacent to the internally threaded portion.
In the preferred embodiments of the invention the externally threaded portion further comprises a locating portion extending axially from the threaded portion and the internally threaded portion further comprises a locating recess extending axially inwardly from the internally threaded portion.
When the two parts are mated, the locating portion is located in the locating recess thereby helping to align the threads and providing further stability to the connector.
It is preferred that the externally threaded portion is on the handle part and the internally threaded portion is in the head part.
2Q It.'as teen found that this arrangement gives a better feel than if the connector parts are the other way round. Also, when several club head parts are stored in the same compartment of a bag, they may knock against the inside of the compartment or against one another during transport and potentially be damaged. The externally threaded portion is most susceptible to such damage as it protrudes from the shaft. Thus if the handle is provided with an externally threaded portion and is stored carefully, e.g. separately, and the club head parts are each provided with internally threaded portions, there is less liklihood of the connecting mechanism being damaged during transport. \
In the preferred forms of the invention the externally threaded portion and shoulder are formed on a first connector part and the internally threaded portion and the end ablu=ent are formed on a second connector part, the first and second connector parts being fixed into respective axial cavities of the handle part and the head part.
This arrangement allows the head part and the handle part to be manufactured separately. Then the two connector parts are subsequently fixed into the shafts of the two club parts so that they may be connected together as previously described.
In the preferred embodiments, at least one of the connector parts is formed with a passage communicating one axial end thereof to the other axial end thereof.
This passage can be formed in either the first or second connector part, but preferably is formed in both parts.
As described in more detail below, this feature allows the creation of a stronger bond between the ccr.nector part and the shaft of the handle or head part as there is no pressure build up behind the connector part which could force the connector part back out of the shaft. Also, this passage allows the escape of air bubbles from the adhesive while the adhesive is setting.
In the preferred forms of the invention the first and second connector parts are made from titanium. More preferably grade 5 titanium is used as this is very strong and resists shock impacts, general wear and corrosion. Previous connectors have been made from stainless steel which is 45% heavier than titanium and not as strong.
In its most preferred forms, the connection is located close to the centre of gravity of the club. In this position the connection has least influence on the feel and flex of the club and therefore makes the club act and feel more like a single piece club.
The screw hre_i of the connection is preferably such that the conne_ or tightens upon swing/impact. If the thread was the other way round, there would be a tendency for the connection to undo itself during the swing or upon impact which would have a detrimental effect on the clubs performance. Thus for a set of right-handed clubs the externally threaded portion screws anti-clockwise into the internally threaded portion, and vice-versa for a set of left-handed clubs.
It is also preferred that the shaft of the head part has a length dependent upon the club head. This is so that the various club heads, when connected to the handle part, will form a golf club of the correct standard length. For example a driver is normally longer than the irons and therefore, a driver club head part will preferably be provided with a longer shaft than those of the irons.
In the process of manufacturing standard one piece golf clubs, a hollow shaft is fitted with a grip at the handle end and a club head is fixed to the other end.
The club head is typically fixed to the shaft using a two part adhesive. The two parts of the adhesive are mixed together and then the mixture is applied to the inside of a receiving chamber in the head and to the outside of the shaft of the club. The shaft is then inserted into the receiving chamber and the two parts of the adhesive react to form a bond between the club head and the shaft.
Because the shaft is hollow, as it is inserted into the receiving chamber of the head, air can escape through the hollow shaft. There is therefore no problem of air getting trapped inside the receiving chamber of the club head.
However, when making a two piece golf club, such as that shown in US 4, 340,27, a connector part is fitted into a hollow shaft extending from a club head, and another connector part is fitted into another hollow shaft extending from the handle part, so as to allow the parts to be joined together for use and separated for transport. These connector parts are glued into the shafts. When the connector parts are to be fixed into the shafts, there arises a problem that the shafts are now closed at one end. Therefore, as a connector part is inserted into a shaft, air is squashed down inside the shaft and the pressure inside the shaft is increased.
Therefore there is a pressure differential across the connector part and an outward force which biases the connector part out of the shaft. This pressure can slowly push the connector part out of the shaft by as much as 2-3 millimetres before the adhesive has set, thereby weakening the connection between the club parts and changing the length and balance of the club. Also, before the adhesive bond has solidified, air bubbles can be forced into the adhesive, weakening the bond and resulting in a club which is susceptible to breaking in use through adhesive bond failure.
If the female connector part is provided with a bore which extends through the whole connector part, this goes some way towards relieving the problem of pressure build up behind the connector part. However, air bubbles can still exist in the adhesive and if these do not escape before the adhesive sets, the resulting bond is not strong enough.
The inventors have recognized that this problem can be solved by creating a an axially extending passage on an outside surface of the connector through which trapped air can escape so that t.-r is no build up of pressure behind the connector parts and which provides an easy escape route for air bubbles in the adhesive.
Therefore, according to a second aspect, the present invention provides a golf club comprising a handle part having a handle and a hollow shaft extending therefrom, a head part having a club head and a hollow shaft extending therefrom and a connector for removably connecting the shaft of the handle part to the shaft of the head part, wherein: the connector comprises a first part fixed into the handle part of the club and a second part fixed into the head part of the club; and at least one of the connector parts is formed with an axially extending passage formed on the outside of the connector part communicating one axial end thereof to the other axial end thereof.
When the parts Of the connector are fitted into the respective shafts of the two club parts, air can pass from the hollow shaft cavity to the outside through the passage so that there is no increased pressure within the club parts. Thus, the passage tends to equalise the pressure at the opposite ends of the connector.
Accordingly, there is no force biasing the connector parts out of the shafts. Also, the passage provides an escape path for air bubbles within the adhesive which bonds the connector parts to the shafts. As these air bubbles can escape, a more uniform and a stronger connection is thus obtained.
In the preferred embodiments of the invention the passage can be formed on the first connector part, on the second connector part or on both connector parts.
In the case of the hear -_r of the golf club, the club head closes one end of the hollow shaft. This is what causes the pressure build up if there is no passage formed in the connector part. If the handle part is provided with a grip which does not close the end of the hollow shaft of the handle part, then there will be no need for a passage to be formed in the handle connector part. However, some designs of handle are closed at one end. It is then beneficial for a passage to be formed on the first connector part.
The passage is preferably provided by an axially extending flat portion formed on the outside of the connector part. This allows escape of air locally to where an adhesive bond is normally formed. Such a flat portion can easily be machined into the side of a connector part during the manufacturing process. More than one flat portion may be provided on a connector part e.g. two diametrically opposed flat portions.
A set of two piece golf clubs necessarily requires a lot less storage space than a full set of golf clubs. In particular, for a set of clubs comprising only one handle part and a plurality of head parts, a bag for storing and transporting the clubs can have a main pocket sized to hold the head parts, and a separate pocket sized to hold the handle part. Thus the overall volume of the bag is reduced. An example of such a bag is that shown in US 4,340,227. This bag has a pocket attached to the side of the bag into which the handle part can be slotted.
However, this pocket would provide little protection for the handle part during transport in a car or an airplane.
To provide such protection, it is desirable to provide a pocket the full length of the handle part.
Because the handle part is normally significantly longer than the head parts, this -_cket will be significantly longer than the mat.. pocket which houses the head parts and therefore adds to the overall bulk of the bag.
According to a third aspect, the present invention provides a golf bag for a set of two piece golf clubs of the type which comprises a handle part having a handle and a shaft extending therefrom and a plurality of head parts each having a club head with a shaft extending therefrom, the bag comprising a main compartment for accommodating the head parts and a handle compartment for accommodating the handle part, wherein the handle compartment is removably attached to the main compartment.
Such a bag with a detachable pocket is particularly advantageous because the handle compartment can be detached from the main compar.me..t when the clubs need to be transported in a confined space such as a boot or in an airplane cargo hold, but can be attached to the main pocket for convenience when carrying the bag on the golf course.
Different golf clubs have different lengths according to the purpose of the club. For example a 9 iron is shorter than a 3-iron which in turn is shorter than a driver. Accordingly, in a set of two part clubs which comprises a handle part and a plurality of head parts, each head part needs to be provided with a different length of shaft for attachment to the handle part. Thus when a head part is connected to the handle l part, the resulting club is of the correct overall length.
According to a fourth aspect, the present invention provides a golf bag for a set of tw_ Niece golf clubs of the type which comprises a handle part having a handle and a shaft extending therefrom and a plurality of head parts each having a club head with a shaft extending therefrom and having a length dependent upon the club head attached thereto, the golf bag comprising a storage region for receiving the head parts, wherein the bottom of the storage region is formed with a slope relative to the top of this storage region such that the height of the storage region at the bottom of the slope corresponds to the length of the longest head part and the height of the storage region at the top of the slope corresponds to the length of the shortest head part.
This design of bag takes up less room and weighs less than a conventional cylindrical bag. Such efficiency of space and weight are useful when the clubs need to be transported in aircraft and for older golfers who may prefer not to carry a standard sized set.
The storage region for receiving the head parts may comprise a single compartment or a series of individual compartments. The sloping bottom of the storage region may be smoothly sloping or it may be in the from of a stepped slope.
A preferred golf bag further comprises a separate pocket for the handle part. As described above, a separate handle pocket helps to reduce the size of the bag as the handle is normally substantially longer than the club head parts. Thus the main compartment can be sized so as to accommodate the smaller head parts and the handle pocket can be sized so as to accommodate the longer handle part. In this way the overall size and weight of the golf bag can be minimized.
Also as described above, it is preferred that the handle pocket is removably attached t^ --e golf bag.
This allows the user to detach the handle pocket when transporting the bag in restricted luggage compartments such as the boot of a car or the cargo bay of an aircraft.
In the preferred embodiments of the invention, the bag further comprises a pocket with a sloping roof underneath the main compartment such that the bag has a substantially uniform height.
Golf bags are normally provided with extra pockets for storing accessories such as golf balls, tees, gloves, etc. These pockets are typically provided on the side of the bag, protruding therefrom. The above preferred feature of providing a sloping pocket underneath the clubs provides a storage space for accessories which does not protrude from the bag. Instead, the pocket makes use of the space which is formed by arranging the different length club heads in height order.
Preferred embodiments of the present invention will now be described by way of example only, and with reference to the accompanying drawings in which: Figure 1 is an exploded view of a two piece golf club according to the present invention; Figure 2 is a longitudinal cross-section of a connector used for connecting the two parts of the golf club as shown in Figure 1; Figure 3 is an end view of an internally threaded connector part looking from the abutment surface towards the locating portion; Figure 4 is a schematic cross-section of a bag according to the present invention; Figure 5 is a rear view of the golf bag showing how the detachable handle pocket attaches and e=_res; and Figure 6 shows an insert which may be provided in the bag for separating clubs; Figure 1 shows a two part golf club 1 having a handle part 2 and a head part 3. The handle part has a grip fixed to the upper end thereof (not shown) and the head part has a golf club head attached at the bottom end thereof (also not shown). The golf club is connected together by means of a male connector part 4 which is fixed into the hollow shaft of the handle part 2 and a female connector part 5 which is fixed into the hollow shaft of the head part 3. Flats 13 provide passages for air within the shafts 2 and 3 and air bubbles within the adhesive to escape when the connector parts 4 and 5 are inserted into the shafts. This allows the pressure on the inside of the shafts 2 and 3 to equalise with the pressure on the outside of the shafts so.;.at there is no pressure difference to force air bubbles into the adhesive while the connector parts are being fixed inside the shafts or to bias the connector parts out of the shafts whilst the adhesive is curing or in the long term.
It also provides an escape path for any air bubbles already existing within the adhesive.
In use, the male connector part 4 (fixed into the shaft 2) is screwed into the female connector part 5 (fixed into the shaft 3) to connect the two club parts together.
The male and female connector parts are shown in greater detail in crosssection in Figure 2. The connector parts are shown in a partially mated condition.
In Figure 2, the male connector part 4 is fixed into the handle part 2. The female connector part 5 is likewise fixed into the head part 3. The flat 13 is not shown in this figure.
The male connector part 4 has an externai-- threaded portion 6 which extends axially out from a shoulder surface 10. This thread is kept to about 8 mm in length.
This provides a balance between speed of assembly and disassembly and strength of the connection, i.e. there are enough turns to ensure that the thread will not strip when the club is swung, but few enough turns that the club can be screwed up and unscrewed without holding up play. A locating portion 8 extends axially out from the threaded portion 6. A flat 13 is formed on the outside of the body of the connector part 4.
The female connector part 5 has an internally threaded portion 7 extending axially inwardly from an end abutment surface 11. A locating recess 9 extends further inwardly from the internally threaded portion. A sloping portion 12 is machined into the internally tr.readed portion 7 of the female connector part 5 adjacent to the end abutment surface 11. This creates an axial spacing between the start of the threaded portion 7 and the end abutment 11. This allows the male threaded portion 6 to be screwed fully into the female internally threaded portion 7 and thereby ensures that a firm connection is made between the shoulder surface 10 and the end abutment surface 11.
By providing the sloping surface 12 extending between the internally threaded portion 7 and the end abutment surface 11, the sharpness of the corners involved is reduced and therefore potential weaknesses in the connector part 5 are avoided.
The sloping portion 12, of generally conical form, also serves to create a region of greater radius than the internally threaded portion 7, so defining a radial space 14 between the threaded portion 6 and the sloping _-rtion 12. As the male threaded part 6 is screwed into -he female internally threaded part 7, any dirt on the male part 6 may be forced back towards the shoulder 10. The region of greater radius provided by surface 12 provides the space 14 for accommodating this dirt so that it is not pushed into the region where the surfaces 10 and 11 meet. Therefore the connection of the two club parts is not impaired.
Figure 3 shows the female connector part viewed from the end abutment surface 11, looking down the connector towards the locating portion 9. The shape of the main barrel of the connector part is shown by a dashed line.
The flat 13 can be seen here.
A set of golf clubs using the above connection mechanism can have a single handle portion and multiple head portions. In this way, a golfer can carr.-;._s or her normal array of clubs, but in only one third of the size and with only one third of the weight of a standard set.
Figures 4 and 5 show a bag for carrying a set of two piece golf clubs. The bag 100 has a main compartment 101 for accommodating the head parts and a separate detachable handle pocket 102 for accommodating the handle part. The bottom of the main compartment 101 has a slope 103 relative to the top of the main compartment 101 such that the height of the main compartment 101 at the bottom of the slope 103 corresponds to the length of the longest head part and the height of the main compartment 101 at the top of the slope 103 corresponds to the length of the shortest head part.
An accessories pocket 104 is located underneath the main compartment 101 for storing balls, tees, gloves, etc. This pocket has a sloping roof which corresponds to the slope 103 of the bottom of the main compartment 101.
As shown in Figure 5, the handle pocket 102 is detachable from the rest of the bag so that the bag can be stored easily in a car boot or in the cargo bay of an aircraft without taking up excess space or having an awkward shape. The handle pocket can be carried or stored separately.
Figure 6 shows an insert which can be provided inside the main compartment to separate the club head parts. This helps to stop the head parts from knocking against each other during storage or transport, and assists the golfer in keeping his or her clubs in good order. It will be noted that the holes for the wood head parts are at one side of the insert (the three holes around the indication "W"), and the holes for the putter, pitching wedge and sand wedge head parts ("P", "P" and "S") are at the other side of the insert, with the holes for the 3 to 9 iron head parts being at intermediate positions.
Tubes (not shown) may be provided which extend downwardly from the holes in the insert of Figure 6.
These tubes serve to stop the clubs from knocking against the side of the compartment or against one another.
The bag may be provided with a cover (not shown) as is well-known in the art. The bag may also be provided with a carrying strap (not shown) which can be attached to or detached from the bag as required.

Claims (21)

  1. Claims: 1. A golf club comprising a handle part having a handle and a
    shaft extending axially therefrom, a head part having a club head and a shaft extending axially therefrom, the handle part and the head part being removably connected to each other, one of the connector parts having an externally threaded portion which extends axially from a shoulder, the other of the connector parts having an internally threaded portion which extends axially inwardly from an end abutment, wherein the internally threaded portion is axially spaced from the end abutment.
  2. 2. A golf club as claimed in claim 1, wherein the internally threaded portion is axially spaced from the end abutment by a region of greater radius than the internally threaded portion.
  3. 3. A golf club as claimed in claim 2, wherein the region of greater radius slopes outwardly from the internally threaded portion towards the end abutment.
  4. 4. A golf club as claimed in claim 1, 2 or 3, wherein the externally threaded portion further comprises a locating portion extending axially from the threaded portion and the internally threaded portion further comprises a locating recess extending axially inwardly from the internally threaded portion.
  5. 5. A golf club as claimed in any preceding claim, wherein the externally threaded portion is on the handle part and the internally threaded portion is in the head part.
  6. 6. A golf club as claimed in any preceding claim, wherein the externally threaded portion and shoulder are formed on a first connector part and the internally threaded portion and the end abutment are formed on a second connector part, the first and second connector parts being fixed into respective axial cavities of the handle part and the head part.
  7. 7. A golf club as claimed in claim 6, wherein at least one of the connector parts is formed with a passage communicating one axial end thereof to the other axial end thereof.
  8. 8. A golf club as claimed in claim 7, wherein the passage is provided by an axially extending flat portion formed on the outside of the connector part.
  9. 9. A golf club as claimed in any of claims 5 to 9, wherein the first and second connector parts are made from titanium. /
  10. 10. A golf club comprising a handle part having a handle and a hollow shaft extending therefrom, a head part having a club head and a hollow shaft extending therefrom and a connector for removably connecting the shaft of the handle part to the shaft of the head part, wherein: the connector comprises a first part fixed into the handle part of the club and a second part fixed into the head part of the club; and at least one of the connector parts is formed with an axially extending passage formed on the outside of the connector part communicating one axial end thereof to the other axial end thereof.
  11. 11. A golf club as claimed in claim 10, wherein the passage is formed on the first connector part.
  12. 12. A golf club as claimed in claim 10, wherein the passage is formed on the second connector part.
  13. 13. A golf club as claimed in claim 10, 11 or 12, wherein the passage is provided by an axially extending flat portion formed on the outside of the connector part.
  14. 14. A golf bag for a set of two piece golf clubs of the type which comprises a handle part having a handle and a shaft extending therefrom and a plurality of head parts each having a club head with a shaft extending therefrom and having a length dependent upon the club head attached thereto, the golf bag comprising a storage region for receiving the head parts, wherein the bottom of the storage region is formed with a slope relative to the top of the storage region such that the height of the storage region at the bottom of the slope corresponds to the length of the longest head part and the height of the storage region at the top of the slope corresponds to the length of the shortest head part.
  15. 15. A golf bag as claimed in claim 14, wherein the slope is a stepped arrangement.
  16. 16. A golf bag as claimed in claim 14 or 15, further comprising a separate pocket for the handle part.
  17. 17. A golf bag as claimed in claim 14, 15 or 16 wherein the handle pocket is removably attached to the golf bag.
  18. 18. A golf bag as claimed in any of claims 14 to 17, further comprising a pocket with a sloping roof underneath the compartment such that the bag has a substantially uniform height.
  19. 19. A golf bag for a set of two piece golf clubs of the type which comprises a handle part having a handle and a shaft extending therefrom and a plurality of head parts each having a club head with a shaft extending therefrom, the bag comprising a main compartment for accommodating the head parts and a handle compartment for accommodating the handle part, wherein the handle compartment is removably attached to the main compartment.
  20. 20. A golf club substantially as hereinbefore described, with reference to Figures 1-3.
  21. 21. A golf bag substantially as hereinbefore described, with reference to Figures 4-6.
GB0421862A 2004-10-01 2004-10-01 Golf shaft connector Withdrawn GB2418621A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0421862A GB2418621A (en) 2004-10-01 2004-10-01 Golf shaft connector
PCT/GB2005/003792 WO2006037980A1 (en) 2004-10-01 2005-09-30 Sports apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0421862A GB2418621A (en) 2004-10-01 2004-10-01 Golf shaft connector

Publications (2)

Publication Number Publication Date
GB0421862D0 GB0421862D0 (en) 2004-11-03
GB2418621A true GB2418621A (en) 2006-04-05

Family

ID=33427923

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0421862A Withdrawn GB2418621A (en) 2004-10-01 2004-10-01 Golf shaft connector

Country Status (1)

Country Link
GB (1) GB2418621A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1150136A (en) * 1967-07-20 1969-04-30 Ms & R Inc Golf club.
GB2309647A (en) * 1996-02-01 1997-08-06 Vincent Patrick Emmerson Golf club

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1150136A (en) * 1967-07-20 1969-04-30 Ms & R Inc Golf club.
GB2309647A (en) * 1996-02-01 1997-08-06 Vincent Patrick Emmerson Golf club

Also Published As

Publication number Publication date
GB0421862D0 (en) 2004-11-03

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