US20220305347A1 - Balance point alignment for golf shafts and golf clubs - Google Patents
Balance point alignment for golf shafts and golf clubs Download PDFInfo
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- US20220305347A1 US20220305347A1 US17/838,480 US202217838480A US2022305347A1 US 20220305347 A1 US20220305347 A1 US 20220305347A1 US 202217838480 A US202217838480 A US 202217838480A US 2022305347 A1 US2022305347 A1 US 2022305347A1
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- demarcation
- golf club
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- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/007—Putters
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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
- A63B53/10—Non-metallic shafts
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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
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/46—Measurement devices associated with golf clubs, bats, rackets or the like for measuring physical parameters relating to sporting activity, e.g. baseball bats with impact indicators or bracelets for measuring the golf swing
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- A63B60/52—Details or accessories of golf clubs, bats, rackets or the like with slits
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- A63B69/36—Training appliances or apparatus for special sports for golf
- A63B69/3676—Training appliances or apparatus for special sports for golf for putting
- A63B69/3685—Putters or attachments on putters, e.g. for measuring, aligning
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- 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
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Definitions
- the present disclosure generally relates to shafts for golf clubs. More particularly, the present disclosure relates to products, systems, and methods for identifying and utilizing the balance point of the golf club on the shaft thereof to assist golfers with their alignment before making a stroke.
- Golf is a popular global game that has existed for hundreds of years. Golf clubs remain quite similar in shape and general construction (head, shaft, grip), while technology and composite material advances have been significant. Golf has many challenges in the game, and there is a large market for golf equipment and training aides that seek to assist with overcoming those challenges. A large challenge in golf is being able to adequately align oneself and identify the various contours of the putting surfaces (e.g., read the putting greens).
- the products and methods disclosed in herein seek to assist golfers with providing improved products and methods for their alignment by utilizing the balance point of the golf club along the shaft that will produce at least one level horizontal edge of the golf club's shaft while being balanced by hand or finger from such balance point.
- the level horizontal edge of the club's shaft can then be used as a reference of a true level horizontal plane of the shaft's edge, by which the player can use to better identify contour changes while reading the green, and thus knowing where to aim prior to taking their stroke.
- a shaft for a golf club includes a first end, a second end, and a demarcation that is used for balancing the golf club horizontally.
- the first end is adapted to attach to a club head.
- the second end is distal to the first end and is adapted to engage a grip.
- the demarcation is positioned at the balance point of the golf club between the first end and the second end such that it will produce at least one level horizontal edge of the golf club's shaft while being balanced by hand or finger from such demarcation and balance point.
- the demarcation can be created in many different ways and may take many different forms, of which several forms and methods of the demarcation will be outlined in embodiments discussed.
- the demarcation can be formed in or as part of the shaft of the golf club, or the demarcation can be a product that is attached to the shaft of the golf club at the balance point of the golf club.
- FIG. 1 is a side perspective view of an embodiment of a demarcation formed in the shaft of a golf club at the balance point of the golf club.
- FIG. 2 is a close up perspective view of a portion of the shaft where the demarcation lies of FIG. 1 .
- FIG. 3 is an alternate perspective view of an embodiment of the portion of the shaft of FIG. 2 showing the demarcation is 360 degrees around the shaft.
- FIG. 4 is a side perspective view of another embodiment of the golf club with a golf shaft that has a demarcation formed in the shaft at the balance point of the golf club, wherein the demarcation is in the configuration of a half of an hourglass.
- FIG. 5 is a side perspective view of a further embodiment of the golf club with a golf shaft that has a color change marking as the demarcation that is placed and marks the balance point of the golf club.
- FIG. 6 is a side perspective view of yet a further embodiment of the golf club with a golf shaft that has a bend in the shaft as the demarcation of the balance point of the golf club.
- FIG. 7 is a flowchart of a method according to certain embodiments.
- FIG. 8 is a side perspective view of a golf club with a cut shaft at or near the balance point of the golf club.
- FIG. 10 is a side perspective view of the golf club with a cut shaft at the balance point of the golf club with the insert prior to assembly.
- FIG. 11 is the golf club assembled with the insert connecting the cut shaft sections.
- FIG. 13 is a close up perspective view of a portion of the golf shaft of the golf club of FIG. 12 , wherein the adhesive strip has been applied to the shaft at the balance point of the golf club.
- FIG. 14 is a top perspective view of the adhesive strip illustrated in FIGS. 12 and 13 ;
- FIG. 15 is a side perspective view of the adhesive strip illustrated in FIG. 14 ;
- FIG. 16 is a top perspective view of varying sizes of the adhesive strips.
- FIG. 17 is a perspective view of a top of an embodiment of an adhesive strip having shoulders on two sides of the strip.
- FIG. 18 is an alternate perspective view of the adhesive strip of FIG. 17 .
- FIG. 19 is a perspective view of a side of the adhesive strip of FIG. 17 .
- FIG. 20 is a perspective view of the adhesive strip illustrated in FIG. 17 being applied to a shaft.
- FIG. 21 is a perspective view of the adhesive strip illustrated in FIG. 17 on the shaft at the balance point.
- FIG. 22 is a perspective view of a top of another embodiment of the adhesive strip that has shoulders that curve on both sides of the shoulders.
- FIG. 23 is an alternate perspective view of the adhesive strip illustrated in FIG. 22 .
- FIG. 24 is a perspective view of a side of the adhesive strip illustrated in FIG. 22 .
- FIG. 25 is a perspective view of the adhesive strip illustrated in FIG. 22 being applied to a shaft.
- FIG. 26 is a perspective view of the adhesive strip illustrated in FIG. 22 on the shaft at the balance point.
- FIG. 27 is a perspective view of a top of a further embodiment of the demarcation that includes two clamshells applied to the golf shaft at the balance point of the golf club.
- FIG. 28 is an exploded side perspective view of the demarcation illustrated in FIG. 27 .
- FIG. 29 is an assembled side perspective view of the demarcation illustrated in FIGS. 27-28 on the shaft at the balance point.
- FIG. 30 is an exploded front perspective view of the demarcation illustrated in FIGS. 27-29 .
- FIG. 31 is an assembled front perspective view of the demarcation illustrated in FIGS. 27-30 .
- FIG. 32 is a perspective view of a further embodiment of the demarcation, which includes a sleeve to be slid onto the shaft of the golf club and positioned at the balance point along the shaft of the golf club.
- FIG. 33 is a front perspective view of the demarcation illustrated in FIG. 32 .
- FIG. 34 is a perspective view of the demarcation illustrated in FIGS. 32 and 33 installed on a shaft at a balance point.
- FIG. 35 is a perspective view of yet another embodiment of a version of the demarcation, which is a curve in the shaft that forms an indentation via a departure by the shaft of the central straight axis line of the shaft.
- FIG. 36 is a close up perspective view of a portion of the shaft where the demarcation is formed between protrusions and lies similar as to the section of the shaft shown in FIG. 2 .
- FIG. 37 is a similar side perspective view of the golf club as shown FIG. 1 , but utilizing a tapered shaft in place of the parallel shaft that is shown in FIG. 1 .
- FIG. 38 is a similar side perspective view of the golf club as shown FIG. 1 , but utilizing a stepped shaft in place of the parallel shaft that is shown in FIG. 1 .
- FIG. 39 is a close up perspective view of a portion of the shaft similar to FIG. 2 , and illustrates that the demarcation may be asymmetrical or customized to better match any individuals hand/finger shape, if desired or needed.
- FIG. 40 is a close-up view of a portion of a shaft including a demarcation having a rectilinear cross-section.
- references in the specification to “one embodiment,” “an embodiment,” “an illustrative embodiment,” etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may or may not necessarily include that particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. It should further be appreciated that although reference to a “preferred” component or feature may indicate the desirability of a particular component or feature with respect to an embodiment, the disclosure is not so limiting with respect to other embodiments, which may omit such a component or feature. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to implement such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
- motion or spacing along a direction defined by one of the axes need not preclude motion or spacing along a direction defined by another of the axes.
- elements that are described as being “laterally offset” from one another may also be offset in the longitudinal and/or transverse directions, or may be aligned in the longitudinal and/or transverse directions. The terms are therefore not to be construed as limiting the scope of the subject matter described herein to any particular arrangement unless specified to the contrary.
- items included in a list in the form of “at least one of A, B, and C” can mean (A); (B); (C); (A and B); (B and C); (A and C); or (A, B, and C).
- items listed in the form of “at least one of A, B, or C” can mean (A); (B); (C); (A and B); (B and C); (A and C); or (A, B, and C).
- Items listed in the form of “A, B, and/or C” can also mean (A); (B); (C); (A and B); (B and C); (A and C); or (A, B, and C).
- the present disclosure relates to products, systems, and methods for reading putting greens on a golf course using a golf club, such as the putter, in a horizontal, balanced, position.
- a golf club such as the putter
- Each golf club has a balance point that generally falls somewhere along the shaft that can be used to balance the golf club 20 horizontally in such a way that produces at least one edge of the club's shaft in a horizontal and level position when being balanced by hand/finger from such balance point.
- This level horizontal shaft edge can then be used as a frame of reference by the golfer to assist with visualizing contour changes of the putting green while reading the greens.
- balance point is more appropriate and is based on the relative weights and positions of the various components of the golf club, such as the shaft, club head, grip, etc.
- the balance point can be used to balance the golf club 20 horizontally to produce at least one edge of the shaft of the balanced golf club that will be horizontal and level, and thus can be used as a frame of reference by which a player can compare the topography of the green to identify changes in the contour of the green, and thus where to aim prior to taking their stroke.
- a demarcation used for balancing is formed into or attached onto the shaft at or adjacent to the balance point of the golf club. The demarcation may then be used by the golfer to position a hand/finger, and the like, thereunder to horizontally balance the golf club from such balance point and demarcation in such a way to produce at least one horizontal and level edge of the shaft of the golf club.
- the types of the demarcation can include one or more of a notch, a groove, an indentation, a taper, a curve, a bend, an insert, an adhesive strip, a change in texture, a change in color, a change in material, a sleeve, a pair of clamshells, an aesthetic feature (e.g., a logo or paint), and the like to physically demark the balance point of the golf club from other portions of the golf club's shaft.
- an aesthetic feature e.g., a logo or paint
- the demarcation may be placed at or adjacent the balance point of the golf club.
- the demarcation may be provided at the balance point.
- the demarcation may be provided adjacent the balance point.
- a demarcation that is adjacent the balance point may be within one inch of the balance point, within a half inch of the balance point, or within a quarter inch of the balance point.
- a demarcation at the balance point may indicate to a user that the user is intended to place a hand or finger at the demarcation in order to balance the golf club.
- a demarcation adjacent the balance point may indicate to the user that the user is intended to place a hand or finger to one side of the demarcation in order to balance the golf club.
- a demarcation may be provided as one or more projections.
- a projection at the balance point may be utilized as a fulcrum for balancing of the club, whereas a projection adjacent the balance point may provide lateral support for the user's finger while balancing the club.
- FIG. 1 is a side perspective view of an embodiment of a demarcation 1 of the shaft 3 as part of the golf club 20
- FIG. 2 is a plan view of a portion of the shaft 3 where the demarcation 1 lies.
- a level 6 illustrating that when the golf club 20 is balanced at or adjacent the demarcation 1 , the club 20 has at least one level, horizontal edge 91 / 92 .
- the golf club 20 generally includes a shaft 3 , a club head 7 , and a grip 8 .
- the golf club 20 is a putter.
- the club head 7 is attached to a first end of the shaft 3 , and the grip 8 is positioned on an opposite second or distal end of the shaft 3 . Due to the weight of the club head 7 , the balance point 2 of the golf club 20 is typically positioned along the shaft 3 closer to the club head 7 than to the grip 8 .
- the club head 7 includes a neck 133 that connects to shaft 3 . In such forms, the neck 133 may be considered part of club head 7 .
- the shaft 3 includes a balancing demarcation 1 that identifies and is placed at the balance point 2 of the golf club 20 .
- the balance point 2 of the golf club 20 is one that will produce at least one level horizontal edge 91 / 92 of the shaft 3 while the golf club 20 is being balanced by hand/finger 5 from such balance point 2 and demarcation 1 .
- the shaft 3 may be manufactured of metal, graphite, and the like, or other shaft materials both known and unknown.
- the demarcation 1 is formed directly into the shaft 3 and is provided as an indentation 4 in the shaft 3 .
- the indentation 4 is an annular groove having an hourglass shape about a straight longitudinal axis 95 of the shaft 3 .
- the hourglass shape is a symmetrical curve.
- the symmetrical shape of the annular groove is adapted to have a shape similar to that of a human's finger 5 , such as to match a width of the finger 5 or a height of the finger 5 , which allows annular groove to rest comfortably on the finger 5 .
- the indentation 4 in FIGS. 1-3 is symmetrical, a human's hand/finger 5 can be both symmetrical or asymmetrical.
- the indentation 4 hourglass shape and annular groove demarcation can alternatively be formed asymmetrically, for example as shown in FIG. 39 .
- demarcation may be rectilinear in cross-section, for example as shown in FIG. 40 .
- the indentation may be provided with any geometry feasible or desirable.
- the demarcation 1 being formed of an indentation 4 , such as the annular groove shown in FIGS. 1 and 2 , identifies the balance point 2 of the golf club 20 , and assists the player with being able to more easily balance the entire club 20 by providing side support for the player's finger 5 .
- This support can help keep the entire club 20 from teetering in a seesaw-type fashion on a player's finger 5 when being balanced horizontally and level from such demarcation 1 and balance point 2 .
- the embodiment shown illustrates an indentation 4 wide enough to receive a finger 5
- the indentation 4 can be narrow or shallow, but wide enough and deep enough such that the indentation 4 is adapted to be felt by the player's finger 5 .
- the indentation 4 is an indentation from the diameter of the shaft 3 .
- the demarcation 1 of the shaft 3 includes protrusions 90 forming the indentation 4 therebetween, the indentation 4 being indented relative to the protrusions 90 rather than to the standard diameter of the shaft 3 .
- the player can know where to and more easily balance the golf club 20 horizontally to produce at least one level horizontal shaft edge 91 / 92 .
- the horizontal and level position of at least one shaft edge 91 / 92 is demonstrated in FIG. 1 by the level 6 shown therein.
- a player will be given at least one level straight horizontal edge along at least one of the top edge 91 (the edge along the shaft 3 opposite the finger) or the bottom edge 92 (the edge along the shaft 3 that is engaged by the finger) by which the player can use as a frame of reference of true level horizontal to better visually identify changes in contour on the golf course, and most specifically on the putting green.
- the level, horizontal, straight shaft edge 91 / 92 may assist players to better understand which direction to aim prior to addressing and taking their golf stroke.
- the shaft 3 outside of the indentation 4 , generally has a uniform thickness, at least along the length 18 .
- a shaft of uniform thickness it is possible to have both edges 91 / 92 of the shaft 3 level and horizontal while the golf club 20 is being balanced as the shaft edges 91 , 92 are parallel to each other, at least along the length 18 .
- the shaft 103 outside of indentation 4 , generally has a tapered thickness along the length 18 , and the tapered shaft 103 diameter is smaller closer to the club head and larger closer to the grip.
- the demarcation 1 and in particular, the middle of the symmetrical hourglass shape of the indentation 4 , is positioned at or adjacent to the balance point 2 that will produce at least one level horizontal edge 91 / 92 of the shaft of the golf club while being balanced by hand/finger 5 from such demarcation 1 and balance point 2 .
- the edge 91 of the shaft 103 is horizontal and level and runs parallel to the level 6 shown, while the taper of the shaft 103 does not allow the opposing shaft edge 92 to be level based on the taper of the shaft 103 .
- both edges 91 / 92 of the shaft are parallel to the level 6 shown.
- FIG. 38 is a perspective view a shaft 203 according to certain embodiments, which includes steps 19 .
- the steps 19 increase in diameter from the club head 7 to the butt end of the club 20 , where the grip 8 is located. Due to the stepped nature of the shaft 203 , the demarcation is positioned at the balance point 2 , where a desired section of shaft 203 between two different steps 19 that produces at least one level horizontal shaft edge 91 / 92 of the shaft 203 of the golf club 20 when balanced by hand/finger 5 from such demarcation 1 and balance point 2 .
- the portion of the shaft 3 that does not comprise the demarcation 1 may have a standard diameter typical to golf shafts, and the demarcation 1 may have a lesser diameter.
- the demarcation 1 may have the standard diameter typical to golf clubs, and the shaft 3 may include regions of greater diameter on either side of the standard-diameter demarcation. For example, if the demarcation 1 is provided in the form of a recess and a particular diameter is required for rigidity of the club, the demarcation 1 may have the particular diameter, and the regions on either side of the demarcation 1 may have a greater diameter.
- FIG. 4 illustrated therein is a side perspective view of another embodiment of a version of demarcation 1 of the shaft 3 of the golf club 20 .
- the demarcation 1 is a transition 9 in the shaft 3 forming one half of an hourglass shape.
- the half-hourglass shape can be used in combination with the collar 115 of the neck 133 of the club head 7 , which will essentially create the indentation 4 between the larger shaft diameter section of the shaft 3 prior to the shaft transition 9 and the collar 115 of the neck 133 of the club head 7 .
- This embodiment while still providing support for a hand/finger 5 on both sides of indentation 4 , has a more traditional in nature shaft design, where the diameter of the shaft becomes smaller as one progresses from grip end of the shaft 3 to the end of the shaft 3 that engages the club head 7 .
- the shaft 3 can be considered a version of tapered.
- the demarcation 1 is formed by at least one characteristic change 10 , such as a textural change, a material change, and/or a color change.
- the characteristic change 10 can be accomplished using all current and future methods practiced including dye, ink, paint, textural spray/composite or a material substitution during the manufacturing process to form the demarcation 1 and mark the position of the balance point 2 of the golf club 20 .
- the characteristic change 10 can be as small as a hairline size marking, or can be wider. In the embodiment shown in FIG. 5 , the characteristic change 10 is approximately a width of one of a typical finger width.
- the demarcation 1 is positioned at the balance point 2 that will produce at least one horizontal level edge 91 / 92 of the shaft 3 while being balanced by hand/finger 5 from such demarcation 1 and balance point 2 .
- a demarcation 1 of the shaft 3 of the golf club 20 illustrated therein is a side perspective view of another embodiment of a demarcation 1 of the shaft 3 of the golf club 20 .
- the demarcation 1 is formed of a bend 11 in the shaft 3 .
- the bend 11 is formed at or adjacent to the balance point 2 that will produce at least one horizontal and level edge 91 / 92 of the shaft of the golf club 20 while being balanced by hand/finger 5 from such demarcation 1 and balance point 2 .
- a level horizontal edge of the shaft 3 can be used as a reference for reading the greens.
- the balance point 2 of the golf club can fall along the neck 133 of the golf club head 7 .
- the various forms of demarcation 1 discussed previously can be positioned in the neck 133 of the golf club head 7 as opposed to in the shaft of the golf club to produce the same level horizontal shaft result previously outlined.
- Any of the embodiments disclosed herein can be positioned on or formed in the neck 133 of the head so as to be positioned at the balance point 2 of the golf club 20 that falls within the neck 133 of the golf club's head 7 .
- FIG. 7 is a flowchart of a process 700 for creating or modifying a shaft of a golf club 20 with a demarcation 1 at a balance point 2 .
- the process 700 includes identifying the balance point 2 of the golf club 20 on the shaft 3 at block 710 . More particularly, block 710 involves identifying a balance point 2 of the golf club 20 that will produce at least one level horizontal edge of the shaft 3 while the club 20 is balanced from the balance point 2 .
- the balance point 2 may, for example, be identified by balancing the golf club 20 on a narrow item, such as a hand/finger 5 , using a mechanical device to determine a more precise balance point, or using a computer model of the club 20 to determine the balance point 2 computationally.
- the process 700 also includes block 720 , which generally involves providing the shaft 3 with a demarcation 1 at or adjacent to the balance point 2 of the golf club 20 . More particularly, block 720 involves providing the club 20 with a demarcation 1 that will produce at least one level horizontal edge of the shaft 3 when the club 20 is balanced from the balance point 2 with the aid of the demarcation 1 .
- the providing of block 720 may include block 722 , which generally involves forming the demarcation 1 in the shaft 3 .
- block 722 may involve forming the demarcation 1 as an indentation in the shaft 3 at or adjacent the balance point 1 , as illustrated in FIGS. 1-4 and 39 .
- block 722 may involve forming the demarcation 1 as a bend in the shaft 3 at or adjacent the balance point, as illustrated in FIGS. 6 and 35 .
- block 722 may involve forming the demarcation 1 as one or more protrusions 90 at or adjacent the balance point 2 , such as is illustrated in FIG. 36 .
- block 724 may involve adding the demarcation 1 to the shaft 3 .
- block 724 may involve providing the shaft 3 with a characteristic change 10 (e.g., one or more of a change in texture, a change in material change, and/or a change in color), for example as described with reference to FIG. 5 .
- block 724 may involve providing the shaft 3 with an insert 13 at or adjacent the balance point 2 , for example as described below with reference to FIGS. 8-11 .
- block 726 may involve attaching the demarcation 1 to the shaft 3 .
- block 726 may involve attaching an adhesive member to the shaft 3 at or adjacent the balance point 2 , for example as described below with reference to FIGS. 12-26 .
- block 726 may involve attaching a clamshell device to the shaft 3 , for example as described below with reference to FIGS. 27-31 .
- block 726 may involve mounting a sleeve to the shaft, for example as described below with reference to FIGS. 32-34 .
- block 710 may involve determining whether the shaft 3 is uniform (e.g., as illustrated in FIG. 1 ), tapered (e.g., as illustrated in FIG. 37 ), or stepped (e.g., as illustrated in FIG. 38 ), and block 720 may involve providing the demarcation 1 at or adjacent to the balance point 2 based upon such determination.
- block 720 may involve providing the shaft 3 with the demarcation 1 in a manner such that at least one edge 91 / 92 of the shaft 3 is balanced in a horizontal and level position when balanced by a hand/finger 5 from such demarcation 1 and balance point 2 .
- FIG. 8 is a side perspective view of a golf club 20 with a shaft 3 having a cut 12 formed therein at the balance point 2 , thereby separating the shaft 3 into a first shaft segment 801 including the grip 8 and a second shaft segment 802 including the head 7 .
- FIG. 9 is a side perspective view of a demarcation that is provided by a golf shaft insert 13 .
- FIG. 10 is a side perspective view of the golf club 20 with the insert 13 prior to assembly.
- FIG. 11 illustrates the golf club 20 assembled, with the insert 13 positioned at the balance point 2 of the golf club 20 .
- the illustrated insert 13 generally includes a body 15 and protrusions 14 extending from each side thereof.
- the demarcation-comprising insert 13 includes an indentation 4 , such as the indentation 4 described above with reference to FIGS. 1-4 .
- the indentation 4 includes a symmetrical, hourglass shape, and is weighted evenly such that the balance point 2 of the insert 13 is at the geometric center thereof.
- the shaft insert can be formed asymmetrically depending on the variation in the shape of a human's hand/finger 5 , in which case the weight distribution of the insert 13 may be adjusted accordingly to produce the same design outcome outlined.
- Each protrusion 14 is sized to fit within a cavity 17 of the shaft 3 .
- the protrusions 14 are tapered.
- the protrusions 14 are sized to form an interference fit with shaft 3 .
- block 724 includes forming a cut 12 in the shaft 3 at the balance point 2 , thereby separating the shaft 3 into a first shaft segment 801 and a second shaft segment 802 .
- a length equal to that of a body 15 of the insert 13 is cut about the balance point 2 from the shaft 3 .
- Such embodiments of the process 700 may also include positioning the insert 13 between the cut segments 801 , 802 of the shaft 3 ( FIG. 10 ), with the protrusions 14 in alignment 16 with the cavities 17 of the shaft 3 .
- Such embodiments of the process 700 may further include inserting the protrusions 14 into respective cavities 17 , such that the two segments 801 , 802 of the shaft 3 are joined by the insert 13 .
- the insert 13 may be joined to the two segments 801 , 802 of the shaft 3 by an adhesive, such as glue or by current practices known for adding shaft extensions to a shaft.
- the demarcation-comprising insert 13 allows the golf club 20 to be balanced by a hand/finger 5 of a player at the balance point 2 of the golf club 20 with the hand/finger 5 coming in contact with the indentation 4 of the insert 13 such that at least one edge 91 / 92 of the golf club's shaft 3 is level and horizontal when being balanced by hand/finger 5 from such insert 13 , demarcation 1 , and balance point 2 .
- the insert 13 may be formed of the same material of the shaft 3 , such as steel, graphite, and the like. In alternative embodiments, the insert 13 can be formed of a different material than that of the shaft 3 .
- FIG. 12 illustrates the golf club 20 with the adhesive strip 30 applied at or adjacent the balance point 2 .
- FIG. 13 is a close up perspective view of the portion of the shaft 3 of FIG. 12 , where the demarcation 1 is added to the shaft 3 of golf club 20 .
- FIG. 14 is a top perspective view of the adhesive strip 30 of FIGS. 12 and 13 .
- FIG. 15 is a side perspective view of the adhesive strip 30 of FIG. 14 .
- the demarcation 1 in the illustrated embodiment is an adhesive strip 30 positioned on the shaft at or adjacent to the balance point 2 of the golf club 20 .
- the adhesive strip 30 is comprised of a material similar to that of tape or stickers, with an adhesive underside 36 that is adapted to stick and adhere to the shaft 3 .
- the adhesive strip also includes a non-adhesive top side 35 which can have various markings 33 , such as a solid line running down a middle thereof.
- the markings 33 can vary, such as including logos and geometric shapes that identify the balance point 2 .
- the adhesive strip 30 is attached to the shaft 3 of the golf club 20 at the balance point 2 that will produce at least one horizontal level edge 91 / 92 of the shaft 3 of the golf club 20 while being balanced by hand/finger 5 from such demarcation 1 and balance point 2 .
- the adhesive strip 30 extends 360° around the shaft 3 .
- a player can balance the golf club 20 by hand/finger 5 to produce at least one level horizontal edge 91 / 92 of the shaft 3 to better assist with visualizing and recognizing contour changes on the course, and in particular on the putting green.
- the edge of the upper portion 18 of the shaft 3 can be used as a reference while analyzing the contours of the green, where the lower portion 24 of the shaft that is closest to the club head 7 often includes offset curves or other bends that make the section less desirable or more difficult to use, but can be used in some circumstances.
- the level 6 illustrates the horizontal and level positioning of at least one edge 91 / 92 of shaft 3 , and in particular of the upper portion 18 , when the golf club 20 is balanced on the player's finger 5 from the adhesive strip demarcation 1 and balance point 2 .
- the length 32 of the adhesive strip 30 may be adapted to be the length of the circumference around the shaft 3 at the balance point 2 .
- the width 31 of the adhesive strip 30 can vary depending on desired aesthetic looks for the adhesive strip 30 and the overall golf club 20 . As shown in FIG. 16 , the widths 31 can be a single thin line to only demark the balance point, or may be significantly wider. In some embodiments, such as the embodiment illustrated in FIG. 13 , the adhesive strip 30 includes a width 31 that is approximately the width of a finger 5 .
- the thickness 34 of the adhesive strip in the embodiment shown is that similar to tape or stickers.
- the alignment strip 30 includes alternative shapes that help a player better reduce any seesawing movement of the golf club 20 when balancing the golf club 20 at the balance point 2 on a hand/finger 5 .
- FIG. 17 is a perspective view of a top of an embodiment of a demarcation 1 defined by an adhesive strip 30 .
- FIG. 18 is an alternate perspective view of the adhesive strip 30 of FIG. 17 .
- FIG. 19 is a perspective view of a side of the adhesive strip 30 of FIG. 17 .
- FIG. 20 is a perspective view of the adhesive strip 30 of FIG. 17 being applied to a shaft 3 .
- FIG. 21 is a perspective view of the adhesive strip 30 of FIG. 17 on the shaft 3 .
- the adhesive strip 30 includes a central portion 42 and shoulders 43 on opposite sides of the central portion 42 .
- the central portion 42 is flat.
- the central portion 42 may be rounded, tapered, form an hourglass shape, or can be a simple inflection point joining the two shoulders 43 of the strip together, and the like.
- the shoulders 43 are positioned at each side of the central portion 42 and protrude radially outward from the shaft 3 at an outer top face of the adhesive strip 30 along a length of the sides thereof.
- the illustrated shoulders 43 include curved surfaces 44 such that the outer surface of the adhesive strip 30 forms an indentation between the shoulders 43 , such as the hourglass shape described above.
- the shoulders 43 can be formed of thickened tape, foam, and the like, that has sufficient rigidity to support contact with the players finger 5 and to reduce or limit any rocking of the golf club 20 during balancing of the golf club 20 by hand/finger 5 from such balance point 2 and demarcation 1 .
- the marking 33 of the embodiment illustrated in FIGS. 17-21 is the same or similar to the markings 33 described above with reference to FIGS. 12-16 , and can be positioned in the middle of the adhesive strip 30 , or can be multiple markings equidistant from the middle, and the like, such that the balance point 2 is identifiable therefrom.
- the adhesive strip 30 is adapted to be placed 360° about the shaft 3 at the balance point 2 of golf club 20 that will produce at least one horizontal level edge 91 / 92 of the shaft 3 of the golf club 20 while being balanced by hand/finger 5 from such demarcation 1 , adhesive strip 30 , and balance point 2 .
- an indentation 4 formed by the shoulders 43 of the adhesive strip has a general shape of a finger 5 , and is adapted to receive a width or height of a person's hand/finger 5 .
- the shoulders 43 are configured to assist a player in better balancing the golf club 20 by discouraging a seesawing action of the golf club 20 when being balanced on the person's finger 5 .
- a height 45 of the shoulders 43 can vary, and may be as small a raised surface to provide the slightest of support for a person's hand/finger 5 .
- block 720 of the above-described process 700 includes wrapping the adhesive strip 30 around the shaft 3 such that the adhesive strip 30 overlaps with the balance point 2 of the golf club 20 . This may include aligning one or more of the markings 33 with a selected balance point 2 , or aligning more than one of the markings in equal relation from balance point 2 if there are multiple markings on the adhesive strip 30 .
- FIG. 22 is a perspective view of a top of an embodiment of an adhesive strip 30 comprising or defining a demarcation 1 .
- FIG. 23 is an alternate perspective view of the adhesive strip 30 of FIG. 22 .
- FIG. 24 is a side view of a side of the adhesive strip 30 of FIG. 22 .
- FIG. 25 is a perspective view of the adhesive strip 30 of FIG. 22 being applied to a shaft 3 .
- FIG. 26 is a perspective view of the adhesive strip 30 of FIG. 22 on the shaft 3 at the balance point 2 .
- the shoulders 43 each include double sided walls 49 including an inner curve 47 and an outer curve 48 .
- the inner curve 47 and the outer curve 48 of each shoulder 43 are symmetrical, but can be asymmetrical based on personal preference.
- the inner curves 47 of the embodiment illustrated in FIG. 26 provide support for a person's finger 5
- the outer curves 48 provide a smoother surface at the sides of the adhesive strip 30 , which acts to limit the edges from being more likely to snag on things, such as a golf bag and the like.
- the outer curves 48 can discourage the adhesive strip 30 from snagging on the golf bag while the golf club 20 is being taken out or put back into the golf bag. Reducing such contact at the sides of the adhesive strip 30 can improve the longevity of the adhesive strip 30 and help prevent dislocation of the adhesive bond between the adhesive strip 30 and the shaft 3 .
- FIG. 27 illustrates a pair of clamshells that are shown attached around shaft 3 to define a demarcation 1 at the balance point 2 .
- FIG. 28 is an exploded side perspective view of the demarcation 1 at the balance point 2 .
- FIG. 29 is an assembled side perspective view of the demarcation-comprising clamshell on the shaft 3 .
- FIG. 30 is an exploded front perspective view of the demarcation 1 .
- FIG. 31 is an assembled front perspective view of the demarcation 1 .
- the demarcation includes clamshells 50 joined together, such as by fasteners 53 around the shaft 3 at the balance point 2 of the golf club.
- the demarcation 1 includes two symmetrical clamshells 50 , the clamshells 50 including an outer surface 52 forming an hourglass shape, with shoulders 51 at each end. The shoulders 51 and the outer surface 52 define an indentation therebetween, which is defined by the hourglass shape.
- the body of the clamshells 50 may be made of a hard plastic or the like that provides durability and rigidity to support fasteners that connect the clamshells 50 together.
- an interior surface 55 of each of the clamshells 50 includes at least one of rubber, adhesive tape, or the like.
- the interior surface 55 includes a separate liner joined to a body of the clamshells 50 .
- the interior surface 55 including at least one of rubber, adhesive tape, or adhesive may serve to aid the clamshell in maintaining its position on the golf shaft 3 at the balance point 2 .
- the shoulders 51 of the clamshells can be double-curved similar to the adhesive strip in FIG. 26 , and the dashed line 207 in FIG.
- 29 of the clamshells shows how the shoulders 51 of the clamshells could be modified to assist with reducing the likelihood the top of the clamshell shoulders 51 will snag on anything such as a golf bag while the golf club is being taken out of or put into the golf bag.
- the demarcation 1 is formed by a pair of semi-circular clamshells 50 that are in engagement with one another.
- a clamshell-type demarcation may be formed in another manner.
- a clamshell may be provided with a generally C-shaped cross-section such that the single clamshell is operable to snap tightly and securely onto the shaft 3 itself without the need for engagement with a second clamshell.
- the interior surface may include rubber, adhesive tape, or the like in order to discourage shifting of the clamshell once installed.
- FIG. 32 is a side view of an embodiment of the demarcation 1 provided in the form of a sleeve.
- FIG. 33 is a front view of the demarcation 1 of FIG. 32 .
- FIG. 34 is a side view of the demarcation 1 of FIGS. 32 and 33 installed on a shaft 3 .
- the demarcation 1 is provided as a sleeve 60 adapted to slide onto the shaft 3 and to align with the balance point 2 of the golf club 20 .
- the sleeve 60 is secured to the shaft 3 by sliding the shaft 3 into a bore 65 of the sleeve 50 and using an adhesive, such as a double-sided adhesive strip, similar to the manner in which a grip is secured to an end of the shaft 3 .
- the bore 65 has a diameter smaller than that of the shaft 3 , resulting in an interference fit between the sleeve 60 and the shaft 3 .
- the sleeve 60 includes an outer surface 62 forming an hourglass shape, with shoulders 61 at each end.
- the shoulders 61 and the outer surface 62 define an indentation therebetween, which is defined by the hourglass shape.
- the sleeve 60 may, for example, be made of rubber, silicon, or other materials that are currently used for golf grips.
- other types of identifying features for identifying the balance point 2 are used, including those disclosed above, such as logos, lines, grooves, notches, and the like. These identifying features can be used in conjunction with the hourglass shape or in place of the hourglass shape.
- the shoulders of the sleeve 60 can be double curved as shown in the dashed line 307 in FIG. 32 to reduce snagging while being placed into or taken out of a golf bag.
- FIG. 35 is a perspective view of yet another embodiment of the demarcation 1 .
- the demarcation 1 is a curve 70 formed into the shaft 3 that forms an indentation 71 .
- the demarcation 1 includes a curve 70 in the shaft 3 , where the curve is placed at the balance point 2 .
- the curve 70 is a short deviation from the central straight shaft axis 95 of shaft 3 . This differs from certain previously-described embodiments, in which the central axis of the shaft 3 remains straight.
- the resulting curve 70 defines an indentation 71 on one side of the shaft 3 and a protrusion 72 on an opposing side of the shaft 3 .
- the indentation 71 may be provided without a corresponding protrusion 72 on the opposite side of the shaft 3 .
- combinations of the demarcations 1 are used together, and indeed, any combination of the demarcations disclosed herein can be used together.
Abstract
A shaft for a golf club includes a first end, a second end, and a demarcation. The first end is adapted to attach to a club head. The second end is adapted to receive a grip distal to the first end. The demarcation is positioned at or adjacent to the balance point of the golf club between the first end and the second end.
Description
- This application claims the benefit of United States Provisional Patent Application No. 63/101,513, filed on Mar. 4, 2020, and of U.S. Provisional Patent Application No. 63/101,514, filed on Mar. 4, 2020, the contents of each of which are hereby incorporated by reference in their entirety.
- The present disclosure generally relates to shafts for golf clubs. More particularly, the present disclosure relates to products, systems, and methods for identifying and utilizing the balance point of the golf club on the shaft thereof to assist golfers with their alignment before making a stroke.
- Golf is a popular global game that has existed for hundreds of years. Golf clubs remain quite similar in shape and general construction (head, shaft, grip), while technology and composite material advances have been significant. Golf has many challenges in the game, and there is a large market for golf equipment and training aides that seek to assist with overcoming those challenges. A large challenge in golf is being able to adequately align oneself and identify the various contours of the putting surfaces (e.g., read the putting greens).
- While devices exist that are designed to digitally read contour changes on the putting green, these devices are expensive and do not conform with the United States Golf Association (“USGA”) rules of golf and the R&A rules of golf.
- Golfers use a variety of methods for reading the greens. Some hold their fingers in front of their faces, some hold a golf club vertically in front of themselves (often referred to as the plumb-bob method), some use their feet to feel the different contours, and others use various combinations of the above.
- Golfers often look for new methods to improve their abilities to read the greens, and in particular for methods that utilize equipment that conforms with the rules of golf (as defined by the USGA and R&A). The products and methods disclosed in herein seek to assist golfers with providing improved products and methods for their alignment by utilizing the balance point of the golf club along the shaft that will produce at least one level horizontal edge of the golf club's shaft while being balanced by hand or finger from such balance point. The level horizontal edge of the club's shaft can then be used as a reference of a true level horizontal plane of the shaft's edge, by which the player can use to better identify contour changes while reading the green, and thus knowing where to aim prior to taking their stroke.
- In an exemplary embodiment, a shaft for a golf club is disclosed. The shaft includes a first end, a second end, and a demarcation that is used for balancing the golf club horizontally. The first end is adapted to attach to a club head. The second end is distal to the first end and is adapted to engage a grip. The demarcation is positioned at the balance point of the golf club between the first end and the second end such that it will produce at least one level horizontal edge of the golf club's shaft while being balanced by hand or finger from such demarcation and balance point. The demarcation can be created in many different ways and may take many different forms, of which several forms and methods of the demarcation will be outlined in embodiments discussed. The demarcation can be formed in or as part of the shaft of the golf club, or the demarcation can be a product that is attached to the shaft of the golf club at the balance point of the golf club.
-
FIG. 1 is a side perspective view of an embodiment of a demarcation formed in the shaft of a golf club at the balance point of the golf club. -
FIG. 2 is a close up perspective view of a portion of the shaft where the demarcation lies ofFIG. 1 . -
FIG. 3 is an alternate perspective view of an embodiment of the portion of the shaft ofFIG. 2 showing the demarcation is 360 degrees around the shaft. -
FIG. 4 is a side perspective view of another embodiment of the golf club with a golf shaft that has a demarcation formed in the shaft at the balance point of the golf club, wherein the demarcation is in the configuration of a half of an hourglass. -
FIG. 5 is a side perspective view of a further embodiment of the golf club with a golf shaft that has a color change marking as the demarcation that is placed and marks the balance point of the golf club. -
FIG. 6 is a side perspective view of yet a further embodiment of the golf club with a golf shaft that has a bend in the shaft as the demarcation of the balance point of the golf club. -
FIG. 7 is a flowchart of a method according to certain embodiments. -
FIG. 8 is a side perspective view of a golf club with a cut shaft at or near the balance point of the golf club. -
FIG. 9 is a side perspective view of a demarcation-comprising insert used to join two shaft sections. -
FIG. 10 is a side perspective view of the golf club with a cut shaft at the balance point of the golf club with the insert prior to assembly. -
FIG. 11 is the golf club assembled with the insert connecting the cut shaft sections. -
FIG. 12 is a side perspective view of still a further embodiment of a golf shaft and golf club with the demarcation being an adhesive strip applied to the shaft of the golf club at the balance point of the golf club. -
FIG. 13 is a close up perspective view of a portion of the golf shaft of the golf club ofFIG. 12 , wherein the adhesive strip has been applied to the shaft at the balance point of the golf club. -
FIG. 14 is a top perspective view of the adhesive strip illustrated inFIGS. 12 and 13 ; -
FIG. 15 is a side perspective view of the adhesive strip illustrated inFIG. 14 ; -
FIG. 16 is a top perspective view of varying sizes of the adhesive strips. -
FIG. 17 is a perspective view of a top of an embodiment of an adhesive strip having shoulders on two sides of the strip. -
FIG. 18 is an alternate perspective view of the adhesive strip ofFIG. 17 . -
FIG. 19 is a perspective view of a side of the adhesive strip ofFIG. 17 . -
FIG. 20 is a perspective view of the adhesive strip illustrated inFIG. 17 being applied to a shaft. -
FIG. 21 is a perspective view of the adhesive strip illustrated inFIG. 17 on the shaft at the balance point. -
FIG. 22 is a perspective view of a top of another embodiment of the adhesive strip that has shoulders that curve on both sides of the shoulders. -
FIG. 23 is an alternate perspective view of the adhesive strip illustrated inFIG. 22 . -
FIG. 24 is a perspective view of a side of the adhesive strip illustrated inFIG. 22 . -
FIG. 25 is a perspective view of the adhesive strip illustrated inFIG. 22 being applied to a shaft. -
FIG. 26 is a perspective view of the adhesive strip illustrated inFIG. 22 on the shaft at the balance point. -
FIG. 27 is a perspective view of a top of a further embodiment of the demarcation that includes two clamshells applied to the golf shaft at the balance point of the golf club. -
FIG. 28 is an exploded side perspective view of the demarcation illustrated inFIG. 27 . -
FIG. 29 is an assembled side perspective view of the demarcation illustrated inFIGS. 27-28 on the shaft at the balance point. -
FIG. 30 is an exploded front perspective view of the demarcation illustrated inFIGS. 27-29 . -
FIG. 31 is an assembled front perspective view of the demarcation illustrated inFIGS. 27-30 . -
FIG. 32 is a perspective view of a further embodiment of the demarcation, which includes a sleeve to be slid onto the shaft of the golf club and positioned at the balance point along the shaft of the golf club. -
FIG. 33 is a front perspective view of the demarcation illustrated inFIG. 32 . -
FIG. 34 is a perspective view of the demarcation illustrated inFIGS. 32 and 33 installed on a shaft at a balance point. -
FIG. 35 is a perspective view of yet another embodiment of a version of the demarcation, which is a curve in the shaft that forms an indentation via a departure by the shaft of the central straight axis line of the shaft. -
FIG. 36 is a close up perspective view of a portion of the shaft where the demarcation is formed between protrusions and lies similar as to the section of the shaft shown inFIG. 2 . -
FIG. 37 is a similar side perspective view of the golf club as shownFIG. 1 , but utilizing a tapered shaft in place of the parallel shaft that is shown inFIG. 1 . -
FIG. 38 is a similar side perspective view of the golf club as shownFIG. 1 , but utilizing a stepped shaft in place of the parallel shaft that is shown inFIG. 1 . -
FIG. 39 is a close up perspective view of a portion of the shaft similar toFIG. 2 , and illustrates that the demarcation may be asymmetrical or customized to better match any individuals hand/finger shape, if desired or needed. -
FIG. 40 is a close-up view of a portion of a shaft including a demarcation having a rectilinear cross-section. - Although the concepts of the present disclosure are susceptible to various modifications and alternative forms, specific embodiments have been shown by way of example in the drawings and will be described herein in detail. It should be understood, however, that there is no intent to limit the concepts of the present disclosure to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives consistent with the present disclosure and the appended claims.
- References in the specification to “one embodiment,” “an embodiment,” “an illustrative embodiment,” etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may or may not necessarily include that particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. It should further be appreciated that although reference to a “preferred” component or feature may indicate the desirability of a particular component or feature with respect to an embodiment, the disclosure is not so limiting with respect to other embodiments, which may omit such a component or feature. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to implement such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
- Furthermore, motion or spacing along a direction defined by one of the axes need not preclude motion or spacing along a direction defined by another of the axes. For example, elements that are described as being “laterally offset” from one another may also be offset in the longitudinal and/or transverse directions, or may be aligned in the longitudinal and/or transverse directions. The terms are therefore not to be construed as limiting the scope of the subject matter described herein to any particular arrangement unless specified to the contrary.
- Additionally, it should be appreciated that items included in a list in the form of “at least one of A, B, and C” can mean (A); (B); (C); (A and B); (B and C); (A and C); or (A, B, and C). Similarly, items listed in the form of “at least one of A, B, or C” can mean (A); (B); (C); (A and B); (B and C); (A and C); or (A, B, and C). Items listed in the form of “A, B, and/or C” can also mean (A); (B); (C); (A and B); (B and C); (A and C); or (A, B, and C). Further, with respect to the claims, the use of words and phrases such as “a,” “an,” “at least one,” and/or “at least one portion” should not be interpreted so as to be limiting to only one such element unless specifically stated to the contrary, and the use of phrases such as “at least a portion” and/or “a portion” should be interpreted as encompassing both embodiments including only a portion of such element and embodiments including the entirety of such element unless specifically stated to the contrary.
- In the drawings, some structural or method features may be shown in certain specific arrangements and/or orderings. However, it should be appreciated that such specific arrangements and/or orderings may not necessarily be required. Rather, in some embodiments, such features may be arranged in a different manner and/or order than shown in the illustrative figures unless indicated to the contrary. Additionally, the inclusion of a structural or method feature in a particular figure is not meant to imply that such feature is required in all embodiments and, in some embodiments, may be omitted or may be combined with other features.
- In various embodiments, the present disclosure relates to products, systems, and methods for reading putting greens on a golf course using a golf club, such as the putter, in a horizontal, balanced, position. Each golf club has a balance point that generally falls somewhere along the shaft that can be used to balance the
golf club 20 horizontally in such a way that produces at least one edge of the club's shaft in a horizontal and level position when being balanced by hand/finger from such balance point. This level horizontal shaft edge can then be used as a frame of reference by the golfer to assist with visualizing contour changes of the putting green while reading the greens. The exact location of the balance point of the entire golf club is many times the same as or very close to the center of gravity of the golf club, but given the wide variation of golf club components, shapes and component weightings, the term balance point is more appropriate and is based on the relative weights and positions of the various components of the golf club, such as the shaft, club head, grip, etc. - Once known and marked on the shaft, the balance point can be used to balance the
golf club 20 horizontally to produce at least one edge of the shaft of the balanced golf club that will be horizontal and level, and thus can be used as a frame of reference by which a player can compare the topography of the green to identify changes in the contour of the green, and thus where to aim prior to taking their stroke. A demarcation used for balancing is formed into or attached onto the shaft at or adjacent to the balance point of the golf club. The demarcation may then be used by the golfer to position a hand/finger, and the like, thereunder to horizontally balance the golf club from such balance point and demarcation in such a way to produce at least one horizontal and level edge of the shaft of the golf club. As disclosed in greater detail below, in various embodiments, the types of the demarcation can include one or more of a notch, a groove, an indentation, a taper, a curve, a bend, an insert, an adhesive strip, a change in texture, a change in color, a change in material, a sleeve, a pair of clamshells, an aesthetic feature (e.g., a logo or paint), and the like to physically demark the balance point of the golf club from other portions of the golf club's shaft. - As noted above and described in further detail below, the demarcation may be placed at or adjacent the balance point of the golf club. In certain forms, the demarcation may be provided at the balance point. In certain embodiments, the demarcation may be provided adjacent the balance point. For example, a demarcation that is adjacent the balance point may be within one inch of the balance point, within a half inch of the balance point, or within a quarter inch of the balance point. A demarcation at the balance point may indicate to a user that the user is intended to place a hand or finger at the demarcation in order to balance the golf club. A demarcation adjacent the balance point may indicate to the user that the user is intended to place a hand or finger to one side of the demarcation in order to balance the golf club. For example, a demarcation according to certain embodiments may be provided as one or more projections. A projection at the balance point may be utilized as a fulcrum for balancing of the club, whereas a projection adjacent the balance point may provide lateral support for the user's finger while balancing the club.
- With reference to
FIGS. 1 and 2 , illustrated therein is agolf club 20 including ademarcation 1 according to certain embodiments. More particularly,FIG. 1 is a side perspective view of an embodiment of ademarcation 1 of theshaft 3 as part of thegolf club 20, andFIG. 2 is a plan view of a portion of theshaft 3 where thedemarcation 1 lies. Also illustrated inFIG. 1 is alevel 6 illustrating that when thegolf club 20 is balanced at or adjacent thedemarcation 1, theclub 20 has at least one level,horizontal edge 91/92. Thegolf club 20 generally includes ashaft 3, aclub head 7, and agrip 8. In the embodiment illustrated, thegolf club 20 is a putter. Theclub head 7 is attached to a first end of theshaft 3, and thegrip 8 is positioned on an opposite second or distal end of theshaft 3. Due to the weight of theclub head 7, thebalance point 2 of thegolf club 20 is typically positioned along theshaft 3 closer to theclub head 7 than to thegrip 8. In the illustrated form, theclub head 7 includes aneck 133 that connects toshaft 3. In such forms, theneck 133 may be considered part ofclub head 7. - The
shaft 3 includes a balancingdemarcation 1 that identifies and is placed at thebalance point 2 of thegolf club 20. Thebalance point 2 of thegolf club 20 is one that will produce at least one levelhorizontal edge 91/92 of theshaft 3 while thegolf club 20 is being balanced by hand/finger 5 fromsuch balance point 2 anddemarcation 1. Theshaft 3 may be manufactured of metal, graphite, and the like, or other shaft materials both known and unknown. In the embodiment illustrated, thedemarcation 1 is formed directly into theshaft 3 and is provided as anindentation 4 in theshaft 3. In particular, in the embodiment ofFIGS. 1-3 , theindentation 4 is an annular groove having an hourglass shape about a straightlongitudinal axis 95 of theshaft 3. In the embodiment illustrated, the hourglass shape is a symmetrical curve. The symmetrical shape of the annular groove is adapted to have a shape similar to that of a human'sfinger 5, such as to match a width of thefinger 5 or a height of thefinger 5, which allows annular groove to rest comfortably on thefinger 5. While theindentation 4 inFIGS. 1-3 is symmetrical, a human's hand/finger 5 can be both symmetrical or asymmetrical. As such, in other embodiments, theindentation 4 hourglass shape and annular groove demarcation can alternatively be formed asymmetrically, for example as shown inFIG. 39 . Moreover, while certain illustrated demarcations are curvilinear in cross-section, it is also contemplated that a demarcation may be rectilinear in cross-section, for example as shown inFIG. 40 . Indeed, the indentation may be provided with any geometry feasible or desirable. - The
demarcation 1 being formed of anindentation 4, such as the annular groove shown inFIGS. 1 and 2 , identifies thebalance point 2 of thegolf club 20, and assists the player with being able to more easily balance theentire club 20 by providing side support for the player'sfinger 5. This support can help keep theentire club 20 from teetering in a seesaw-type fashion on a player'sfinger 5 when being balanced horizontally and level fromsuch demarcation 1 andbalance point 2. While the embodiment shown illustrates anindentation 4 wide enough to receive afinger 5, in alternative options, theindentation 4 can be narrow or shallow, but wide enough and deep enough such that theindentation 4 is adapted to be felt by the player'sfinger 5. Further, in the embodiment shown, theindentation 4 is an indentation from the diameter of theshaft 3. In other embodiments, for example as shown inFIG. 36 , thedemarcation 1 of theshaft 3 includesprotrusions 90 forming theindentation 4 therebetween, theindentation 4 being indented relative to theprotrusions 90 rather than to the standard diameter of theshaft 3. - By using the
demarcation 1 to identify thebalance point 2 of thegolf club 20 and where to position afinger 5, the player can know where to and more easily balance thegolf club 20 horizontally to produce at least one levelhorizontal shaft edge 91/92. The horizontal and level position of at least oneshaft edge 91/92 is demonstrated inFIG. 1 by thelevel 6 shown therein. By balancing the club as described, a player will be given at least one level straight horizontal edge along at least one of the top edge 91 (the edge along theshaft 3 opposite the finger) or the bottom edge 92 (the edge along theshaft 3 that is engaged by the finger) by which the player can use as a frame of reference of true level horizontal to better visually identify changes in contour on the golf course, and most specifically on the putting green. The level, horizontal,straight shaft edge 91/92 may assist players to better understand which direction to aim prior to addressing and taking their golf stroke. - In an embodiment illustrated in
FIGS. 1 and 2 , theshaft 3, outside of theindentation 4, generally has a uniform thickness, at least along thelength 18. With a shaft of uniform thickness, it is possible to have bothedges 91/92 of theshaft 3 level and horizontal while thegolf club 20 is being balanced as the shaft edges 91, 92 are parallel to each other, at least along thelength 18. In the embodiment illustrated inFIG. 37 , by contrast, theshaft 103, outside ofindentation 4, generally has a tapered thickness along thelength 18, and the taperedshaft 103 diameter is smaller closer to the club head and larger closer to the grip. In either option, thedemarcation 1, and in particular, the middle of the symmetrical hourglass shape of theindentation 4, is positioned at or adjacent to thebalance point 2 that will produce at least one levelhorizontal edge 91/92 of the shaft of the golf club while being balanced by hand/finger 5 fromsuch demarcation 1 andbalance point 2. As shown inFIG. 37 , theedge 91 of theshaft 103 is horizontal and level and runs parallel to thelevel 6 shown, while the taper of theshaft 103 does not allow the opposingshaft edge 92 to be level based on the taper of theshaft 103. InFIG. 1 , with a shaft that does not taper, bothedges 91/92 of the shaft are parallel to thelevel 6 shown. -
FIG. 38 is a perspective view ashaft 203 according to certain embodiments, which includes steps 19. Generally, thesteps 19 increase in diameter from theclub head 7 to the butt end of theclub 20, where thegrip 8 is located. Due to the stepped nature of theshaft 203, the demarcation is positioned at thebalance point 2, where a desired section ofshaft 203 between twodifferent steps 19 that produces at least one levelhorizontal shaft edge 91/92 of theshaft 203 of thegolf club 20 when balanced by hand/finger 5 fromsuch demarcation 1 andbalance point 2. - In certain embodiments, the portion of the
shaft 3 that does not comprise thedemarcation 1 may have a standard diameter typical to golf shafts, and thedemarcation 1 may have a lesser diameter. In other embodiments, thedemarcation 1 may have the standard diameter typical to golf clubs, and theshaft 3 may include regions of greater diameter on either side of the standard-diameter demarcation. For example, if thedemarcation 1 is provided in the form of a recess and a particular diameter is required for rigidity of the club, thedemarcation 1 may have the particular diameter, and the regions on either side of thedemarcation 1 may have a greater diameter. - With additional reference to
FIG. 4 , illustrated therein is a side perspective view of another embodiment of a version ofdemarcation 1 of theshaft 3 of thegolf club 20. Thedemarcation 1 is atransition 9 in theshaft 3 forming one half of an hourglass shape. In certain embodiments, the half-hourglass shape can be used in combination with thecollar 115 of theneck 133 of theclub head 7, which will essentially create theindentation 4 between the larger shaft diameter section of theshaft 3 prior to theshaft transition 9 and thecollar 115 of theneck 133 of theclub head 7. - This embodiment, while still providing support for a hand/
finger 5 on both sides ofindentation 4, has a more traditional in nature shaft design, where the diameter of the shaft becomes smaller as one progresses from grip end of theshaft 3 to the end of theshaft 3 that engages theclub head 7. By having only one side of the hourglass curve inshaft 3, theshaft 3 can be considered a version of tapered. - With additional reference to
FIG. 5 , illustrated therein is a side perspective view of another embodiment of ademarcation 1 of theshaft 3. Thedemarcation 1 is formed by at least onecharacteristic change 10, such as a textural change, a material change, and/or a color change. Thecharacteristic change 10 can be accomplished using all current and future methods practiced including dye, ink, paint, textural spray/composite or a material substitution during the manufacturing process to form thedemarcation 1 and mark the position of thebalance point 2 of thegolf club 20. Thecharacteristic change 10 can be as small as a hairline size marking, or can be wider. In the embodiment shown inFIG. 5 , thecharacteristic change 10 is approximately a width of one of a typical finger width. Thedemarcation 1 is positioned at thebalance point 2 that will produce at least onehorizontal level edge 91/92 of theshaft 3 while being balanced by hand/finger 5 fromsuch demarcation 1 andbalance point 2. - With additional reference to
FIG. 6 , illustrated therein is a side perspective view of another embodiment of ademarcation 1 of theshaft 3 of thegolf club 20. In the embodiment ofFIG. 6 , thedemarcation 1 is formed of abend 11 in theshaft 3. Thebend 11 is formed at or adjacent to thebalance point 2 that will produce at least one horizontal andlevel edge 91/92 of the shaft of thegolf club 20 while being balanced by hand/finger 5 fromsuch demarcation 1 andbalance point 2. Again, with thedemarcation 1, a level horizontal edge of theshaft 3 can be used as a reference for reading the greens. - In some unusual putter designs, the
balance point 2 of the golf club can fall along theneck 133 of thegolf club head 7. In these rare situations, the various forms ofdemarcation 1 discussed previously can be positioned in theneck 133 of thegolf club head 7 as opposed to in the shaft of the golf club to produce the same level horizontal shaft result previously outlined. Any of the embodiments disclosed herein can be positioned on or formed in theneck 133 of the head so as to be positioned at thebalance point 2 of thegolf club 20 that falls within theneck 133 of the golf club'shead 7. -
FIG. 7 is a flowchart of aprocess 700 for creating or modifying a shaft of agolf club 20 with ademarcation 1 at abalance point 2. Theprocess 700 includes identifying thebalance point 2 of thegolf club 20 on theshaft 3 atblock 710. More particularly, block 710 involves identifying abalance point 2 of thegolf club 20 that will produce at least one level horizontal edge of theshaft 3 while theclub 20 is balanced from thebalance point 2. Thebalance point 2 may, for example, be identified by balancing thegolf club 20 on a narrow item, such as a hand/finger 5, using a mechanical device to determine a more precise balance point, or using a computer model of theclub 20 to determine thebalance point 2 computationally. - The
process 700 also includesblock 720, which generally involves providing theshaft 3 with ademarcation 1 at or adjacent to thebalance point 2 of thegolf club 20. More particularly, block 720 involves providing theclub 20 with ademarcation 1 that will produce at least one level horizontal edge of theshaft 3 when theclub 20 is balanced from thebalance point 2 with the aid of thedemarcation 1. - In certain embodiments, the providing of
block 720 may include block 722, which generally involves forming thedemarcation 1 in theshaft 3. As one example, block 722 may involve forming thedemarcation 1 as an indentation in theshaft 3 at or adjacent thebalance point 1, as illustrated inFIGS. 1-4 and 39 . As another example, block 722 may involve forming thedemarcation 1 as a bend in theshaft 3 at or adjacent the balance point, as illustrated inFIGS. 6 and 35 . As a further example, block 722 may involve forming thedemarcation 1 as one ormore protrusions 90 at or adjacent thebalance point 2, such as is illustrated inFIG. 36 . - In certain embodiments, the providing of
block 720 may include block 724, which generally involves adding thedemarcation 1 to theshaft 3. By way of illustration, block 724 may involve providing theshaft 3 with a characteristic change 10 (e.g., one or more of a change in texture, a change in material change, and/or a change in color), for example as described with reference toFIG. 5 . As another example, block 724 may involve providing theshaft 3 with aninsert 13 at or adjacent thebalance point 2, for example as described below with reference toFIGS. 8-11 . - In certain embodiments, the providing of
block 720 may include block 726, which generally involves attaching thedemarcation 1 to theshaft 3. By way of illustration, block 726 may involve attaching an adhesive member to theshaft 3 at or adjacent thebalance point 2, for example as described below with reference toFIGS. 12-26 . As another example, block 726 may involve attaching a clamshell device to theshaft 3, for example as described below with reference toFIGS. 27-31 . As a further example, block 726 may involve mounting a sleeve to the shaft, for example as described below with reference toFIGS. 32-34 . - In certain embodiments, block 710 may involve determining whether the
shaft 3 is uniform (e.g., as illustrated inFIG. 1 ), tapered (e.g., as illustrated inFIG. 37 ), or stepped (e.g., as illustrated inFIG. 38 ), and block 720 may involve providing thedemarcation 1 at or adjacent to thebalance point 2 based upon such determination. In such forms, block 720 may involve providing theshaft 3 with thedemarcation 1 in a manner such that at least oneedge 91/92 of theshaft 3 is balanced in a horizontal and level position when balanced by a hand/finger 5 fromsuch demarcation 1 andbalance point 2. - With additional reference to
FIGS. 8-11 , illustrated therein are various components of agolf club 20 at various stages during an embodiment of theprocess 700.FIG. 8 is a side perspective view of agolf club 20 with ashaft 3 having acut 12 formed therein at thebalance point 2, thereby separating theshaft 3 into afirst shaft segment 801 including thegrip 8 and asecond shaft segment 802 including thehead 7.FIG. 9 is a side perspective view of a demarcation that is provided by agolf shaft insert 13.FIG. 10 is a side perspective view of thegolf club 20 with theinsert 13 prior to assembly.FIG. 11 illustrates thegolf club 20 assembled, with theinsert 13 positioned at thebalance point 2 of thegolf club 20. - The illustrated
insert 13 generally includes abody 15 andprotrusions 14 extending from each side thereof. In the embodiment illustrated, the demarcation-comprisinginsert 13 includes anindentation 4, such as theindentation 4 described above with reference toFIGS. 1-4 . In the embodiment illustrated, theindentation 4 includes a symmetrical, hourglass shape, and is weighted evenly such that thebalance point 2 of theinsert 13 is at the geometric center thereof. However, the shaft insert can be formed asymmetrically depending on the variation in the shape of a human's hand/finger 5, in which case the weight distribution of theinsert 13 may be adjusted accordingly to produce the same design outcome outlined. Eachprotrusion 14 is sized to fit within acavity 17 of theshaft 3. In certain embodiments, theprotrusions 14 are tapered. In certain embodiments, theprotrusions 14 are sized to form an interference fit withshaft 3. - In certain embodiments of the
process 700, block 724 includes forming acut 12 in theshaft 3 at thebalance point 2, thereby separating theshaft 3 into afirst shaft segment 801 and asecond shaft segment 802. In certain embodiments, to maintain a length of thegolf club 20, a length equal to that of abody 15 of theinsert 13 is cut about thebalance point 2 from theshaft 3. Such embodiments of theprocess 700 may also include positioning theinsert 13 between thecut segments FIG. 10 ), with theprotrusions 14 inalignment 16 with thecavities 17 of theshaft 3. Such embodiments of theprocess 700 may further include inserting theprotrusions 14 intorespective cavities 17, such that the twosegments shaft 3 are joined by theinsert 13. Theinsert 13 may be joined to the twosegments shaft 3 by an adhesive, such as glue or by current practices known for adding shaft extensions to a shaft. - As shown in
FIG. 11 , upon completion, the demarcation-comprisinginsert 13 allows thegolf club 20 to be balanced by a hand/finger 5 of a player at thebalance point 2 of thegolf club 20 with the hand/finger 5 coming in contact with theindentation 4 of theinsert 13 such that at least oneedge 91/92 of the golf club'sshaft 3 is level and horizontal when being balanced by hand/finger 5 fromsuch insert 13,demarcation 1, andbalance point 2. In certain embodiments, theinsert 13 may be formed of the same material of theshaft 3, such as steel, graphite, and the like. In alternative embodiments, theinsert 13 can be formed of a different material than that of theshaft 3. - With additional reference to
FIGS. 12-15 , illustrated therein is an embodiment of a demarcation that is formed by anadhesive strip 30.FIG. 12 illustrates thegolf club 20 with theadhesive strip 30 applied at or adjacent thebalance point 2.FIG. 13 is a close up perspective view of the portion of theshaft 3 ofFIG. 12 , where thedemarcation 1 is added to theshaft 3 ofgolf club 20.FIG. 14 is a top perspective view of theadhesive strip 30 ofFIGS. 12 and 13 .FIG. 15 is a side perspective view of theadhesive strip 30 ofFIG. 14 . Thedemarcation 1 in the illustrated embodiment is anadhesive strip 30 positioned on the shaft at or adjacent to thebalance point 2 of thegolf club 20. Theadhesive strip 30 is comprised of a material similar to that of tape or stickers, with anadhesive underside 36 that is adapted to stick and adhere to theshaft 3. The adhesive strip also includes a non-adhesivetop side 35 which can havevarious markings 33, such as a solid line running down a middle thereof. Themarkings 33 can vary, such as including logos and geometric shapes that identify thebalance point 2. Theadhesive strip 30 is attached to theshaft 3 of thegolf club 20 at thebalance point 2 that will produce at least onehorizontal level edge 91/92 of theshaft 3 of thegolf club 20 while being balanced by hand/finger 5 fromsuch demarcation 1 andbalance point 2. - In the illustrated form, the
adhesive strip 30 extends 360° around theshaft 3. As discussed above, by marking thebalance point 2, a player can balance thegolf club 20 by hand/finger 5 to produce at least one levelhorizontal edge 91/92 of theshaft 3 to better assist with visualizing and recognizing contour changes on the course, and in particular on the putting green. In particular, the edge of theupper portion 18 of theshaft 3 can be used as a reference while analyzing the contours of the green, where thelower portion 24 of the shaft that is closest to theclub head 7 often includes offset curves or other bends that make the section less desirable or more difficult to use, but can be used in some circumstances. Thelevel 6 illustrates the horizontal and level positioning of at least oneedge 91/92 ofshaft 3, and in particular of theupper portion 18, when thegolf club 20 is balanced on the player'sfinger 5 from theadhesive strip demarcation 1 andbalance point 2. Thelength 32 of theadhesive strip 30 may be adapted to be the length of the circumference around theshaft 3 at thebalance point 2. - With additional reference to
FIG. 16 , illustrated therein is a top perspective view of various adhesive strip demarcations. Thewidth 31 of theadhesive strip 30 can vary depending on desired aesthetic looks for theadhesive strip 30 and theoverall golf club 20. As shown inFIG. 16 , thewidths 31 can be a single thin line to only demark the balance point, or may be significantly wider. In some embodiments, such as the embodiment illustrated inFIG. 13 , theadhesive strip 30 includes awidth 31 that is approximately the width of afinger 5. - In the embodiment illustrated in
FIG. 15 , thethickness 34 of the adhesive strip in the embodiment shown is that similar to tape or stickers. However, in certain embodiments, such as those illustrated inFIGS. 17-26 , thealignment strip 30 includes alternative shapes that help a player better reduce any seesawing movement of thegolf club 20 when balancing thegolf club 20 at thebalance point 2 on a hand/finger 5. - With additional reference to
FIGS. 17-21 , illustrated therein are adhesive strips according to certain embodiments.FIG. 17 is a perspective view of a top of an embodiment of ademarcation 1 defined by anadhesive strip 30.FIG. 18 is an alternate perspective view of theadhesive strip 30 ofFIG. 17 .FIG. 19 is a perspective view of a side of theadhesive strip 30 ofFIG. 17 .FIG. 20 is a perspective view of theadhesive strip 30 ofFIG. 17 being applied to ashaft 3.FIG. 21 is a perspective view of theadhesive strip 30 ofFIG. 17 on theshaft 3. - The
adhesive strip 30 includes acentral portion 42 andshoulders 43 on opposite sides of thecentral portion 42. In the embodiment illustrated, thecentral portion 42 is flat. In other embodiments, thecentral portion 42 may be rounded, tapered, form an hourglass shape, or can be a simple inflection point joining the twoshoulders 43 of the strip together, and the like. Theshoulders 43 are positioned at each side of thecentral portion 42 and protrude radially outward from theshaft 3 at an outer top face of theadhesive strip 30 along a length of the sides thereof. - The illustrated shoulders 43 include
curved surfaces 44 such that the outer surface of theadhesive strip 30 forms an indentation between theshoulders 43, such as the hourglass shape described above. Theshoulders 43 can be formed of thickened tape, foam, and the like, that has sufficient rigidity to support contact with theplayers finger 5 and to reduce or limit any rocking of thegolf club 20 during balancing of thegolf club 20 by hand/finger 5 fromsuch balance point 2 anddemarcation 1. - The marking 33 of the embodiment illustrated in
FIGS. 17-21 is the same or similar to themarkings 33 described above with reference toFIGS. 12-16 , and can be positioned in the middle of theadhesive strip 30, or can be multiple markings equidistant from the middle, and the like, such that thebalance point 2 is identifiable therefrom. As can be seen inFIGS. 20 and 21 , theadhesive strip 30 is adapted to be placed 360° about theshaft 3 at thebalance point 2 ofgolf club 20 that will produce at least onehorizontal level edge 91/92 of theshaft 3 of thegolf club 20 while being balanced by hand/finger 5 fromsuch demarcation 1,adhesive strip 30, andbalance point 2. - In the embodiment illustrated in
FIG. 21 , anindentation 4 formed by theshoulders 43 of the adhesive strip has a general shape of afinger 5, and is adapted to receive a width or height of a person's hand/finger 5. Again, theshoulders 43 are configured to assist a player in better balancing thegolf club 20 by discouraging a seesawing action of thegolf club 20 when being balanced on the person'sfinger 5. Aheight 45 of theshoulders 43 can vary, and may be as small a raised surface to provide the slightest of support for a person's hand/finger 5. - Referring to
FIGS. 20 and 21 , in certain embodiments, block 720 of the above-describedprocess 700 includes wrapping theadhesive strip 30 around theshaft 3 such that theadhesive strip 30 overlaps with thebalance point 2 of thegolf club 20. This may include aligning one or more of themarkings 33 with a selectedbalance point 2, or aligning more than one of the markings in equal relation frombalance point 2 if there are multiple markings on theadhesive strip 30. - With additional reference to
FIGS. 22-26 , illustrated therein is anadhesive strip 30 according to certain embodiments.FIG. 22 is a perspective view of a top of an embodiment of anadhesive strip 30 comprising or defining ademarcation 1.FIG. 23 is an alternate perspective view of theadhesive strip 30 ofFIG. 22 .FIG. 24 is a side view of a side of theadhesive strip 30 ofFIG. 22 .FIG. 25 is a perspective view of theadhesive strip 30 ofFIG. 22 being applied to ashaft 3.FIG. 26 is a perspective view of theadhesive strip 30 ofFIG. 22 on theshaft 3 at thebalance point 2. In the embodiment illustrated inFIGS. 22-26 , theshoulders 43 each include doublesided walls 49 including aninner curve 47 and anouter curve 48. In certain embodiments, theinner curve 47 and theouter curve 48 of eachshoulder 43 are symmetrical, but can be asymmetrical based on personal preference. - Like the
curved surfaces 44 illustrated inFIG. 21 , theinner curves 47 of the embodiment illustrated inFIG. 26 provide support for a person'sfinger 5, while theouter curves 48 provide a smoother surface at the sides of theadhesive strip 30, which acts to limit the edges from being more likely to snag on things, such as a golf bag and the like. In particular, theouter curves 48 can discourage theadhesive strip 30 from snagging on the golf bag while thegolf club 20 is being taken out or put back into the golf bag. Reducing such contact at the sides of theadhesive strip 30 can improve the longevity of theadhesive strip 30 and help prevent dislocation of the adhesive bond between theadhesive strip 30 and theshaft 3. - With additional reference to
FIG. 27-31 , illustrated therein is ademarcation 1 according to certain embodiments.FIG. 27 illustrates a pair of clamshells that are shown attached aroundshaft 3 to define ademarcation 1 at thebalance point 2.FIG. 28 is an exploded side perspective view of thedemarcation 1 at thebalance point 2.FIG. 29 is an assembled side perspective view of the demarcation-comprising clamshell on theshaft 3.FIG. 30 is an exploded front perspective view of thedemarcation 1.FIG. 31 is an assembled front perspective view of thedemarcation 1. - In the embodiments illustrated in
FIGS. 27-31 , the demarcation includesclamshells 50 joined together, such as byfasteners 53 around theshaft 3 at thebalance point 2 of the golf club. In the illustrated embodiment, thedemarcation 1 includes twosymmetrical clamshells 50, theclamshells 50 including anouter surface 52 forming an hourglass shape, withshoulders 51 at each end. Theshoulders 51 and theouter surface 52 define an indentation therebetween, which is defined by the hourglass shape. The body of theclamshells 50 may be made of a hard plastic or the like that provides durability and rigidity to support fasteners that connect theclamshells 50 together. In certain embodiments, aninterior surface 55 of each of theclamshells 50 includes at least one of rubber, adhesive tape, or the like. In certain embodiments, theinterior surface 55 includes a separate liner joined to a body of theclamshells 50. Theinterior surface 55 including at least one of rubber, adhesive tape, or adhesive may serve to aid the clamshell in maintaining its position on thegolf shaft 3 at thebalance point 2. In certain embodiments, theshoulders 51 of the clamshells can be double-curved similar to the adhesive strip inFIG. 26 , and the dashedline 207 inFIG. 29 of the clamshells shows how theshoulders 51 of the clamshells could be modified to assist with reducing the likelihood the top of the clamshell shoulders 51 will snag on anything such as a golf bag while the golf club is being taken out of or put into the golf bag. - In the embodiment illustrated in
FIGS. 27-31 , thedemarcation 1 is formed by a pair ofsemi-circular clamshells 50 that are in engagement with one another. In other embodiments, a clamshell-type demarcation may be formed in another manner. As one example, a clamshell may be provided with a generally C-shaped cross-section such that the single clamshell is operable to snap tightly and securely onto theshaft 3 itself without the need for engagement with a second clamshell. In such forms, the interior surface may include rubber, adhesive tape, or the like in order to discourage shifting of the clamshell once installed. - With additional reference to
FIGS. 32-34 , illustrated therein is ademarcation 1 according to certain embodiments.FIG. 32 is a side view of an embodiment of thedemarcation 1 provided in the form of a sleeve.FIG. 33 is a front view of thedemarcation 1 ofFIG. 32 .FIG. 34 is a side view of thedemarcation 1 ofFIGS. 32 and 33 installed on ashaft 3. In the embodiment illustrated inFIGS. 32-34 , thedemarcation 1 is provided as asleeve 60 adapted to slide onto theshaft 3 and to align with thebalance point 2 of thegolf club 20. In certain embodiments, thesleeve 60 is secured to theshaft 3 by sliding theshaft 3 into abore 65 of thesleeve 50 and using an adhesive, such as a double-sided adhesive strip, similar to the manner in which a grip is secured to an end of theshaft 3. In certain embodiments, thebore 65 has a diameter smaller than that of theshaft 3, resulting in an interference fit between thesleeve 60 and theshaft 3. - In the embodiment illustrated, the
sleeve 60 includes anouter surface 62 forming an hourglass shape, withshoulders 61 at each end. Theshoulders 61 and theouter surface 62 define an indentation therebetween, which is defined by the hourglass shape. Thesleeve 60 may, for example, be made of rubber, silicon, or other materials that are currently used for golf grips. In other embodiments, other types of identifying features for identifying thebalance point 2 are used, including those disclosed above, such as logos, lines, grooves, notches, and the like. These identifying features can be used in conjunction with the hourglass shape or in place of the hourglass shape. Again, as shown with the clamshells previously, the shoulders of thesleeve 60 can be double curved as shown in the dashedline 307 inFIG. 32 to reduce snagging while being placed into or taken out of a golf bag. -
FIG. 35 is a perspective view of yet another embodiment of thedemarcation 1. In the embodiment illustrated inFIG. 35 , thedemarcation 1 is acurve 70 formed into theshaft 3 that forms anindentation 71. Thedemarcation 1 includes acurve 70 in theshaft 3, where the curve is placed at thebalance point 2. In the embodiment illustrated, thecurve 70 is a short deviation from the centralstraight shaft axis 95 ofshaft 3. This differs from certain previously-described embodiments, in which the central axis of theshaft 3 remains straight. In the embodiment illustrated, the resultingcurve 70 defines anindentation 71 on one side of theshaft 3 and aprotrusion 72 on an opposing side of theshaft 3. In other embodiments, theindentation 71 may be provided without a correspondingprotrusion 72 on the opposite side of theshaft 3. - In some embodiments, combinations of the
demarcations 1 are used together, and indeed, any combination of the demarcations disclosed herein can be used together. - Although the present disclosure has been illustrated and described herein with reference to preferred embodiments and specific examples thereof, it will be readily apparent to those of ordinary skill in the art that other embodiments and examples may perform similar functions and/or achieve like results. All such equivalent embodiments and examples are within the spirit and scope of the present disclosure, are contemplated thereby, and are intended to be covered by the following claims.
Claims (27)
1-11. (canceled)
12. A golf club, comprising:
a club head;
a grip; and
a shaft having a first end connected to the club head and an opposite second end engaged with the grip, the shaft comprising a demarcation at or adjacent to a balance point of the golf club, wherein the balance point is located between the club head and the grip.
13. The golf club of claim 12 , wherein the demarcation comprises an indentation formed in the shaft between at least two points along the shaft with larger diameters.
14. The golf club of claim 13 , wherein the indentation comprises an annular groove.
15. The golf club of claim 14 , wherein the annular groove comprises an hourglass shape.
16. The golf club of claim 12 , wherein the demarcation forms a taper between adjoining portions of the shaft with different diameters.
17. The golf club of claim 12 , wherein the demarcation comprises a bend or curve in the shaft.
18. The golf club of claim 12 , further comprising an adhesive strip, wherein adhesive strip comprises the demarcation and is wrapped around a portion of the shaft.
19. The golf club of claim 18 , wherein the adhesive strip includes a central portion and shoulders positioned on opposite sides of the central portion that project radially outward from the shaft such that an indentation is formed between the shoulders.
20. The golf club of claim 12 , further comprising a first clamshell attached to the shaft, wherein the first clamshell comprises at least a portion of the demarcation.
21. The golf club of claim 20 , further comprising a second clamshell coupled with the first clamshell such that the shaft is captured between the first clamshell and the second clamshell.
22. The golf club of claim 12 , further comprising a sleeve slid onto the shaft, wherein the sleeve comprises the demarcation.
23. The golf club of claim 12 , wherein the shaft has at least one horizontal and level edge when balanced at the balance point.
24. A method of forming the golf club of claim 12 , the method comprising:
identifying the balance point of the golf club, wherein the balance point is located on the shaft; and
providing the shaft with the demarcation at or adjacent to the balance point of the golf club.
25. The method of claim 24 , further comprising determining whether the shaft has a uniform configuration, a tapered configuration, or a stepped configuration;
wherein the demarcation is provided to the shaft at or adjacent to the balance point of the golf club based on the determining.
26. The method of claim 24 , wherein providing the shaft with the demarcation comprises:
cutting the shaft into a first shaft segment and a second shaft segment;
positioning an insert between the first shaft segment and the second shaft segment, wherein the insert comprises the demarcation; and
joining the first shaft segment and the second shaft segment to opposite ends of the insert.
27. The method of claim 24 , wherein providing the shaft with the demarcation comprises applying an adhesive strip to the shaft at or adjacent to the balance point of the golf club; and
wherein the adhesive strip comprises the demarcation.
28. The method of claim 27 , wherein the adhesive strip comprises a pair of shoulders having an indentation defined therebetween.
29. The method of claim 24 , wherein providing the shaft with the demarcation comprises positioning at least one clamshell on the shaft at or adjacent to the balance point of the golf club; and
wherein at least one clamshell comprises the demarcation.
30. The method of claim 29 , wherein the at least one clamshell comprises a pair of clamshells.
31. The method of claim 24 , wherein providing the shaft with the demarcation comprises positioning a sleeve at or adjacent to the balance point of the golf club; and
wherein the sleeve comprises the demarcation.
32. The golf club of claim 12 , wherein the shaft comprises:
a first shaft segment comprising the first end;
a second shaft segment comprising the second end; and
an insert coupling the first shaft segment and the second shaft segment, wherein the insert comprises the demarcation.
33. The golf club of claim 32 , wherein one of the first shaft segment or the second shaft segment comprises a cavity; and
wherein the insert comprises a protrusion received in the cavity.
34. The golf club of claim 12 , further comprising an insert coupled with the shaft, the insert comprising the demarcation.
35. The golf club of claim 34 , wherein the shaft comprises a cavity; and
wherein the insert comprises a protrusion received in the cavity.
36. The method of claim 26 , wherein one of the first shaft segment or the second shaft segment comprises a cavity;
wherein the insert comprises a protrusion; and
wherein joining the first shaft segment and the second shaft segment to opposite ends of the insert comprises inserting the protrusion into the cavity.
37. The method of claim 24 , wherein providing the shaft with the demarcation comprises:
cutting the club into a first club segment and a second club segment;
positioning an insert between the first club segment and the second club segment, wherein the insert comprises the demarcation; and
joining the first club segment and the second club segment to opposite ends of the insert.
Priority Applications (1)
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US17/838,480 US20220305347A1 (en) | 2020-03-04 | 2022-06-13 | Balance point alignment for golf shafts and golf clubs |
Applications Claiming Priority (4)
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US202063101513P | 2020-03-04 | 2020-03-04 | |
US202063101514P | 2020-03-04 | 2020-03-04 | |
US17/144,653 US11358035B2 (en) | 2020-03-04 | 2021-01-08 | Balance point alignment for golf shafts and golf clubs |
US17/838,480 US20220305347A1 (en) | 2020-03-04 | 2022-06-13 | Balance point alignment for golf shafts and golf clubs |
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US17/144,653 Division US11358035B2 (en) | 2020-03-04 | 2021-01-08 | Balance point alignment for golf shafts and golf clubs |
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US20220305347A1 true US20220305347A1 (en) | 2022-09-29 |
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US17/144,653 Active US11358035B2 (en) | 2020-03-04 | 2021-01-08 | Balance point alignment for golf shafts and golf clubs |
US17/838,480 Pending US20220305347A1 (en) | 2020-03-04 | 2022-06-13 | Balance point alignment for golf shafts and golf clubs |
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US17/144,653 Active US11358035B2 (en) | 2020-03-04 | 2021-01-08 | Balance point alignment for golf shafts and golf clubs |
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US (2) | US11358035B2 (en) |
JP (1) | JP2023516418A (en) |
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US11358035B2 (en) * | 2020-03-04 | 2022-06-14 | Andrew T. Barber | Balance point alignment for golf shafts and golf clubs |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4073492A (en) * | 1975-07-21 | 1978-02-14 | Taylor David L | Customized putter |
US4128242A (en) * | 1975-11-11 | 1978-12-05 | Pratt-Read Corporation | Correlated set of golf clubs |
US4280700A (en) * | 1978-12-11 | 1981-07-28 | Motion Analysis Inc. | Golf club and golf club set |
US6431993B1 (en) * | 2000-02-23 | 2002-08-13 | The Nirvana Group, L.L.C. | Golf club hosel interface having bendable section for customizing lie and face angles |
US20210275878A1 (en) * | 2020-03-04 | 2021-09-09 | Andrew T. Barber | Balance point alignment for golf shafts and golf clubs |
Family Cites Families (53)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1516786A (en) * | 1921-04-18 | 1924-11-25 | Irving R Prentiss | Set of golf clubs |
US1594801A (en) * | 1926-06-12 | 1926-08-03 | Stackpole Joseph Lewis | Method of harmonizing a set of golf clubs |
US3834700A (en) * | 1968-12-24 | 1974-09-10 | B Averbach | Method of making a golf club wherein ratio of gross weight to swing weight is less than 0.62 |
US3740053A (en) | 1971-12-02 | 1973-06-19 | W Eiger | Golf practice device |
US4203598A (en) * | 1974-09-05 | 1980-05-20 | Square Two Golf Corporation | Golf club |
US4461479A (en) * | 1981-02-13 | 1984-07-24 | Mitchell Michael D | Golf club having weighted handle |
US4415156A (en) * | 1981-08-26 | 1983-11-15 | Jorgensen Theodore P | Matched set of golf clubs |
US5094101A (en) | 1990-06-20 | 1992-03-10 | Chastonay Herman A | Method for dynamically balancing golf clubs |
EP0611316B1 (en) * | 1991-10-17 | 1996-04-17 | Taylor Made Golf Company, Inc. | Balanced golf club |
US5277059A (en) * | 1992-05-20 | 1994-01-11 | Chastonay Herman A | Method for dynamically balancing golf putters and other implements using radius of gyration as the controlling parameter |
US5265872A (en) * | 1992-12-23 | 1993-11-30 | Unifiber Usa | Golf club shaft having definable "feel" |
US5417108A (en) * | 1994-01-06 | 1995-05-23 | Chastonay; Herman A. | Method for dynamically balancing golf clubs on a conventional swing weight scale using radius of gyration as the controlling parameter |
FR2730416A1 (en) * | 1995-02-13 | 1996-08-14 | Taylor Made Golf Co | Golf club shaft |
US5882268A (en) * | 1996-03-13 | 1999-03-16 | True Temper Sports, Inc. | Golf club and shaft therefor |
US5792946A (en) * | 1996-04-02 | 1998-08-11 | Chastonay; Herman A. | Pendulum length balancing of golf clubs including graphite shafted golf clubs |
US5608160A (en) * | 1996-04-02 | 1997-03-04 | Chastonay; Herman A. | Balancing golf clubs to a common period of oscillation by balancing such clubs to a common equivalent pendulum length |
US5755826A (en) * | 1996-05-21 | 1998-05-26 | Taylor Made Golf Company, Inc. | Golf club shaft and process for manufacturing same |
JP3691916B2 (en) * | 1996-09-27 | 2005-09-07 | 藤倉ゴム工業株式会社 | Non-metallic golf shaft forming method and non-metallic golf shaft |
US5879241A (en) * | 1997-03-04 | 1999-03-09 | Cook; Eric H. | Matched set of golf clubs and method of producing the same |
JP3905596B2 (en) * | 1997-05-12 | 2007-04-18 | 藤倉ゴム工業株式会社 | Golf shaft manufacturing method |
JP3013238B2 (en) * | 1997-07-03 | 2000-02-28 | 日本シャフト株式会社 | Putter club |
US5943758A (en) * | 1997-09-30 | 1999-08-31 | Grafalloy Corporation | Fabrication of a hollow composite-material shaft having an integral collar |
US5813922A (en) * | 1997-10-15 | 1998-09-29 | Taylor Made Golf Company, Inc. | Golf club shaft |
US6139444A (en) * | 1997-11-26 | 2000-10-31 | Taylor Made Golf Company, Inc. | Golf shaft and method of manufacturing the same |
US6106411A (en) * | 1999-10-05 | 2000-08-22 | Edwards; Upton B. | Golf club design and construction |
US6506128B1 (en) * | 1999-10-19 | 2003-01-14 | James Pierce Bloom, Jr. | Counterweighted golf club |
US6966846B2 (en) * | 1999-10-19 | 2005-11-22 | Bloom Jr James Pierce | Counterweighted golf club |
JP2001170232A (en) * | 1999-12-17 | 2001-06-26 | Mizuno Corp | Golf club and golf club set |
JP2006204893A (en) * | 2004-12-28 | 2006-08-10 | Sri Sports Ltd | Golf club |
JP2007130089A (en) * | 2005-11-08 | 2007-05-31 | Bridgestone Sports Co Ltd | Golf club |
JP2007130087A (en) * | 2005-11-08 | 2007-05-31 | Bridgestone Sports Co Ltd | Golf club |
JP2007130088A (en) * | 2005-11-08 | 2007-05-31 | Bridgestone Sports Co Ltd | Golf club |
US20080146384A1 (en) | 2006-12-15 | 2008-06-19 | Hansen Sidney A | Swing speed sport conditioning aid |
US8066583B2 (en) * | 2008-08-12 | 2011-11-29 | Acushnet Company | Golf club shaft with high balance point and golf club including same |
US20100248856A1 (en) * | 2009-03-30 | 2010-09-30 | James Jeffery Hunter | Weighted and extended golf putter shaft |
US8499465B2 (en) | 2011-01-11 | 2013-08-06 | Todd Kuta | Optical putter system |
JP5848521B2 (en) * | 2011-05-18 | 2016-01-27 | ダンロップスポーツ株式会社 | Golf club |
US8608586B2 (en) | 2011-09-01 | 2013-12-17 | Richard E. Parente | Golf putter |
JP5852837B2 (en) * | 2011-10-12 | 2016-02-03 | ダンロップスポーツ株式会社 | Golf club |
JP5890995B2 (en) * | 2011-10-12 | 2016-03-22 | ダンロップスポーツ株式会社 | Golf club |
JP5852836B2 (en) * | 2011-10-12 | 2016-02-03 | ダンロップスポーツ株式会社 | Wood type golf club |
US9119994B2 (en) * | 2012-12-03 | 2015-09-01 | Dunlop Sports Co. Ltd. | Golf club |
US9387383B2 (en) * | 2013-03-01 | 2016-07-12 | Best Swing One, Llc | Baseball bat swing training apparatus |
JP5546701B1 (en) * | 2013-07-22 | 2014-07-09 | ダンロップスポーツ株式会社 | Golf club |
JP5546700B1 (en) * | 2013-07-23 | 2014-07-09 | ダンロップスポーツ株式会社 | Golf club |
JP5546672B1 (en) * | 2013-09-20 | 2014-07-09 | ダンロップスポーツ株式会社 | Golf club |
JP5546673B1 (en) * | 2013-09-20 | 2014-07-09 | ダンロップスポーツ株式会社 | Golf club |
JP6436859B2 (en) * | 2014-06-12 | 2018-12-12 | 住友ゴム工業株式会社 | Golf club |
JP5873539B1 (en) * | 2014-09-10 | 2016-03-01 | ダンロップスポーツ株式会社 | Golf club |
JP5826904B1 (en) * | 2014-09-10 | 2015-12-02 | ダンロップスポーツ株式会社 | Golf club |
JP5826905B1 (en) * | 2014-09-10 | 2015-12-02 | ダンロップスポーツ株式会社 | Golf club |
US20160250532A1 (en) * | 2015-02-26 | 2016-09-01 | Taylor Made Golf Company, Inc. | Counterbalanced wedges |
KR101569671B1 (en) | 2015-03-26 | 2015-11-27 | 주식회사 씨앤유 | putter configured to measure the angle of inclination of green slope |
-
2021
- 2021-01-08 US US17/144,653 patent/US11358035B2/en active Active
- 2021-03-04 JP JP2022553085A patent/JP2023516418A/en active Pending
- 2021-03-04 WO PCT/US2021/020849 patent/WO2021178652A1/en active Application Filing
-
2022
- 2022-06-13 US US17/838,480 patent/US20220305347A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4073492A (en) * | 1975-07-21 | 1978-02-14 | Taylor David L | Customized putter |
US4128242A (en) * | 1975-11-11 | 1978-12-05 | Pratt-Read Corporation | Correlated set of golf clubs |
US4280700A (en) * | 1978-12-11 | 1981-07-28 | Motion Analysis Inc. | Golf club and golf club set |
US6431993B1 (en) * | 2000-02-23 | 2002-08-13 | The Nirvana Group, L.L.C. | Golf club hosel interface having bendable section for customizing lie and face angles |
US20210275878A1 (en) * | 2020-03-04 | 2021-09-09 | Andrew T. Barber | Balance point alignment for golf shafts and golf clubs |
US11358035B2 (en) * | 2020-03-04 | 2022-06-14 | Andrew T. Barber | Balance point alignment for golf shafts and golf clubs |
Also Published As
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JP2023516418A (en) | 2023-04-19 |
US11358035B2 (en) | 2022-06-14 |
US20210275878A1 (en) | 2021-09-09 |
WO2021178652A1 (en) | 2021-09-10 |
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