Classifications

• • 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
  • A63B60/22—Adjustable handles
  • A63B60/24—Weighted handles
• • 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
  • A63B53/14—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
  • A63B60/10—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
  • A63B60/06—Handles
  • A63B60/16—Caps; Ferrules
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
  • A63B2102/32—Golf
• • 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

Definitions

• the present invention is directed to balance compensating golf grips and golf clubs incorporating the balance compensating golf grip.
• the game of golf requires, among other things, the use of golf clubs to strike the golf ball.
• Golf clubs are formed by the head, or striking element, of the club, intended to impact the golf ball.
• the head can take many shapes and be formed of differing materials, thereby causing the head to have differing weights.
• the head is connected to a shaft for imparting the swing to the head.
• the shafts themselves may also be formed of differing materials, such as wood, metal, and composites such as graphite fiber filled polymer.
• the length of the shafts are also variable to the player, depending on height and physical ability of the player. All these variations introduce balance variability to the club and head combination.
• the golf grip At the end of the shaft opposite the head is the golf grip.
• the grip is intended to be grasped by the golfer in order to swing the club.
• the present rules of golf require that the grip not contain any contour that would assist in placement of the golfer's hands on the grip (an exception is made for the putter). Therefore, most existing golf grips are circular in cross-section and concentric with the axis of the shaft, (though the cross-section generally diminishes in size from the end of the grip in a direction towards the exposed portion of the shaft).
• the present invention applies weight within the golf grip to compensate for the imbalance caused by the club head and shaft.
• weight is applied to the composition of which the grip is formed by incorporating a heavy filler into the composition to increase the weight of the grip.
• a metal weight is incorporated into the grip such that it surrounds, but is spaced from the shaft, and concentric with the axis of the shaft.
• a metal weight is incorporated near the end of the grip, overlying but spaced from the end of the shaft, and not surrounding any portion of the shaft.
• the weight is preferably a metal, such as iron and its alloys, especially steel, copper and its alloys, such as brass and bronze, tungsten and its alloys, aluminum and its alloys, ceramics, including cermets.
• a metal such as iron and its alloys, especially steel, copper and its alloys, such as brass and bronze, tungsten and its alloys, aluminum and its alloys, ceramics, including cermets.
• the metal weight which is incorporated near the end of the grip, can at least extend into an interior space formed by the end of a hollow shaft.
• the metal weight extending into the space in the end of the shaft can be exposed, or alternatively be covered by the composition of the grip.
• a grid or lattice of metal may be impregnated by the material forming the grip, with the grid or lattice being formed into a split cylinder.
• embodiments may be used in combination to form the golf grip of the invention.
• Fig. 1 is a schematic cross-section of a golf grip according to one embodiment of the invention in which a metal weight is incorporated concentrically about the end of the shaft of a golf club;
• Fig. 2 is a schematic representation along line A-A of Fig. 1 ;
• Fig 3 is a schematic representation, in a perspective view, of one form of the weight used in the golf grip of Fig. 1 ;
• Fig. 4 is a schematic representation along a top view of the weight of Fig. 3;
• Fig. 5 is a schematic representation of a golf grip according to another embodiment of the invention in which a weight is incorporated near the end of the grip, overlying, but spaced, from the end of the shaft;
• Fig. 6 is a schematic, cross-section, of the grip shown in Fig.5;
• Fig. 7 is a schematic of the exterior shape of the grip of Fig. 5;
• Fig. 8 is a schematic representation of the weight shown in Fig. 5;
• Fig. 9 is a schematic, perspective view of another embodiment of the weight shown in Fig. 8;
• Fig. 10 is a schematic, cross-sectioned view along line A-A of the weight of
• Fig. 1 1 is a schematic top view of the weight of Fig. 9, showing that indicia may be placed thereon;
• Fig. 12 is a schematic representation of a further embodiment of the invention in which a weight is provided with several through holes, or apertures, through which can flow the moldable material of the grip;
• Fig. 13 is a schematic, partially sectioned view, of a grip incorporating the weight of Fig. 12;
• Fig. 14 is a schematic, perspective view of a grip incorporating the weight of Fig. 12;
• Fig. 15 is a schematic view of an alternative embodiment of the central aperture in the weight illustrating a square cross-section to assist in aligning the weight relative to the grip;
• Fig. 16 is an alternative embodiment to the shape of the aperture shown in Fig. 15;
• Fig. 17 is a schematic, partially cross-sectioned view through the finished grip illustrating an extension of the weight into the end of a hollow shaft.
• Fig. 1 illustrates a golf club shaft 10, one end of which is attached to the head (not shown) and the other end of which is attached to golf grip 12.
• the materials of construction of golf grip 1 2 can be any moldable materials, such as natural or synthetic rubbers or polymers possessing the elastomeric and shock absorbing properties of, or similar to, rubbers. Such materials are usually compounded with a filler, to reduce the volume of the more expensive rubbers or polymers.
• the invention contemplates that heavy fillers are also incorporated into the materials of construction of grip 12 to raise the weight of the grip. It is desirable to mold the grip from a composition having a density of from 1 .1 -1 .8 g/cc, preferably 1 .4-1 .8 g/cc.
• the golf grip 12 When assembled on the golf club shaft 10, the golf grip 12 extends about the circumference of hollow shaft 10 with the golf grip overlying the end 14 of shaft 10 as shown at 16 in Fig. 1 .
• a hollow metal shaft it is well within the skill of one in the golf club art to provide hollow or solid shafts depending on the nature of the material used for the shaft, e.g., wood, metal, composites, such a graphite-filled polymers, etc.
• a weight 18 is placed in a mold so as to be at least partially, or alternatively, fully encapsulated by the materials of construction of golf grip 1 2 as shown in Fig. 1 .
• This weight may take the form of a cylindric tube as shown in Fig. 1 , or preferably, can be formed of two halves 20, 21 (Fig. 3) to facilitate placement of the weight in the mold and the final position in the molded grip.
• the thickness of the cylindric half 20 may be on the order of 0.039 inches and may be 2 and 3 ⁇ 4 inches long. These values are given for a weight formed of mild steel. When the metal used is denser, such as tungsten, these thicknesses and lengths will result in a greater weight per volume.
• the inner diameter of the weight should be greater than the outer diameter of golf club shaft 10 such that the interior walls of the weight 18 (or the interior of assembled halves 20, 21 ) has a coating of the grip material of construction thereon as shown at 1 7 in Fig. 1 .
• the mass of weight 18 can be varied to counterbalance the variabilities introduced to the balance of the golf club by the size and weight of the golf club head (not shown) and the golf club shaft 10.
• weight 18 (or halves 20, 21 ) can be provided with apertures therein to permit the materials of construction of grip 12 to permeate the weight.
• These apertures can be single or numerous through holes of any shape (e.g., round, elongated, quadrilateral, hexagonal, etc.) but preferably are either round or quadrilateral.
• the holes are so numerous that the weight 18 begins to resemble a grid or lattice and thus many layers of weighted material can be positioned or wound to form the final weight.
• This provision of apertures, or grid/lattice structure assures intimate contact of the materials of construction with weight 1 8.
• bonding agents, surface roughness and other aids to assure intimate bonding of the weight to the materials of construction of grip 12 can also be employed in combination.
• the weights described herein are preferable formed of a metal, and suitable metals include iron and its alloys, including steel, and other dense metals. While lead and gold would have the density to make them viable candidates, the cost of gold and the environmental disposal of lead reduce their likelihood as suitable metals.
• tungsten and its alloys for use as the material of choice for the weighted golf grip of the invention. Tungsten has a high density of 17 grams per cubic centimeter. When used in the embodiments discussed herein, the weighted golf grip of the invention may be made 40% to 90% heavier than the conventional golf grip. This additional weight aids in counterbalancing the golf club on which it is installed.
• tungsten alone, or with its alloys, as the preferred metals
• equivalent weight of non-tungsten containing metals it is within the scope of the invention to use equivalent weight of non-tungsten containing metals.
• the volume of the non- tungsten containing metals would be larger in order to approach the equivalent weight of a tungsten, or tungsten alloy weight.
• Such metals include copper and its alloys, examples of which are brass and bronze, iron and its alloys, including different grades of steel, aluminum and its alloys, ceramics and cermets.
• a weight may be placed at the extreme end of a golf club, thereby providing the most significant counterbalance per unit weight during the swing of the golf club.
• a weight 30 is placed at the extreme end of the grip 12 and may be at least partially visible at its upper surface. It is also within the scope of the invention to have the weight 30 completely covered at the end of the grip so that it is not visible.
• the covering could be the molding composition itself, or a separate piece placed over the weight 30, which separate piece is joined to, or captured by, the grip composition.
• This weight could also made of the same materials as discussed herein, but preferable is made of tungsten alone, or tungsten and its alloys.
• the weight 30 can take several forms, including the provision of an aperture 32 (Fig. 9) into which the grip material 33 can flow as well as the provision of stud 39 which can extend into the material of grip 12. Not only does aperture 32 and stud 39 assure a bond of the weight 30 to grip 12, but as shown in Fig. 6, a flange 34 can be formed into weight 30 such that it is captured by the grip 12, as shown in the partially cross- sectioned view of Fig. 6. As shown in Fig. 6, a boundary 35 of grip material extends between the end of shaft 10 and weight 30.
• Fig. 12 illustrates a further embodiment of a weight 130, which weight 1 30 has a plurality of apertures or holes. These apertures 1 31 , 132, 133, 134, are present such that the moldable material of the grip can penetrate though weight 1 30 during molding of the grip to securely maintain the weight 130 in the desired position in the grip.
• the apertures 1 31 , 132, 1 33, and 1 34 can have a non- circular configuration, or they may be circular in cross-section. Although we have illustrated four apertures, they may be more, or less than four, e.g., two, three, five, or more.
• the apertures are uniformly placed about the axis of the weight 1 30 to avoid introducing unintended variations into the weight distribution.
• One or more of the apertures could contain an indicator, such as slot 144 (Fig. 1 2) so as to assist in orientation of the weight 1 30 in a certain location in the mold.
• an indicator such as slot 144 (Fig. 1 2) so as to assist in orientation of the weight 1 30 in a certain location in the mold.
• slot 144 there could be various shapes of the central aperture itself (Fig. 15, where central aperture 160 is square; Fig. 16, where central aperture 170 is triangular) which may act as an orienting element of the weight relative to the moldable material of the grip, and/or relative to the position of the grip on the shaft.
• any shape which can act as an orienting element can be used.
• Non-limiting examples of such shapes include quadrilaterals, such as rectangles, trapezoids and rhomboids, pentagonal, hexagonal, septagonal (heptagonal), octagonal, etc. as well as part circular with a flat portion, or circular with an extending slot, e.g., keyhole shaped.
• a mandrel may cooperate with the orienting element to orient the weight relative to the grip.
• the moldable material of the grip extends through the apertures to securely hold and position weight 130 relative to the grip.
• a central aperture or vent hole 140 is also contained in this weight, which vent can be extended through the moldable material 141 to aid in installing the grip on a shaft of the golf club.
• the vent 140 and vent 141 act in cooperation to let any trapped air escape from the grip. This is especially desirable when the shaft is solid in cross section, or where the shaft is already fitted to the club head, or in any situation in which air is trapped during installation of the grip, whether in newly manufacturing golf clubs or in replacing existing grips on the clubs.
• the exterior, exposed surface 136 of weight 130 is substantially smaller than that shown in the embodiment of Fig. 5. This is due to the stepped nature of weight 130, as compared to the weight 30. This permits more of the moldable compound to show at the distal end of the grip (opposite the club head) and itself may form a location for the placement of indicia, such as the grip maker's name, the golf club maker, or even a particular country club or organization. However, as stated above, the weight 30, or 130, may be completely covered by the moldable compound, or an insert placed over the weight, such that the weight is not visible art all.
• Indicia 1 50 can also be placed on or in the moldable composition of the grip itself as shown in Fig. 14.
• the indicia 150 can be the grip maker's name, a trademark, a design, the golf club maker's name, etc.
• the outer surface of the grip can be provided with distinctive, or ornamental, markings as shown at 1 51 , 152 in Fig. 14.
• these distinctive marking can serve a functional purpose, e.g., an arrowhead 153, or other indicator, can be used to assist in aligning the grip upon installing the same on the shaft of the golf club.
• a second marking, i. e., an arrowhead is shown at the lower end of grip 13, which can also be of use to the grip installer, in combination with arrowhead 153, to assure that the grip is not twisted when the grip 13 is installed on the shaft 10.
• markings 153, 154 may exist spaced 180 ° from markings 1 53, 154, to also assist in aligning the grip 13 on the shaft 10.
• additional arrowheads, or indicators may exist spaced 180 ° from markings 1 53, 154, to also assist in aligning the grip 13 on the shaft 10.
• the markings have no functional purpose.
• the weight can also provide a place for indicia, such as the owner's initial(s), a club's logo, etc., as shown in Fig. 1 1 .
• weight 30 is 850% heavier than such monogramming caps.
• the weight 30 (or 130) may be forced to extend into the space surrounded by the shaft when the grip is mounted on the shaft.
• a tail of the weight will extend into the end of the shaft.
• the tail may be bare metal, or may be covered by the molding composition, which is unitary with the remainder of the grip.

Landscapes

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

Applications Claiming Priority (3)

Publications (2)

Family

ID=49911941

Family Applications (1)

Country Status (5)

Citations (6)

Family Cites Families (8)

• 2012
  • 2012-04-19 CA CA2837366A patent/CA2837366A1/en not_active Abandoned
  • 2012-04-19 EP EP12790082.7A patent/EP2714211A4/de not_active Withdrawn
  • 2012-04-19 WO PCT/US2012/034253 patent/WO2012161898A2/en active Application Filing
  • 2012-04-19 CN CN201280031669.6A patent/CN103635238B/zh not_active Expired - Fee Related
  • 2012-04-19 KR KR1020137033680A patent/KR20140025522A/ko not_active Application Discontinuation

Patent Citations (6)

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events