JP3238645U - golf club fitting device - Google Patents

Abstract

A golf club fitting device for properly fitting and aiming a putter. A golf club fitting device (1600) can be attached to a golf club and provide fitting information including effective lie angle and effective loft angle. The golf club fitting device includes a lower surface 16013 that contacts the tip of the grip, an upper surface 16012 opposite the lower surface, and side surfaces 16014 that connect the upper and lower surfaces. The angle indicator 1603 is positioned at a predetermined angle relative to the shaft axis of the golf club so that it rests in a neutral position when the golf club is in its normal address position. [Selection drawing] Fig. 18

Description

This invention relates to fitting golf clubs and, more particularly, to apparatus for properly fitting putters.

The point of golf is to get the ball into the hole in the fewest number of strokes possible. All strokes count the same on the scorecard, whether that stroke is a 300-yard drive or a one-foot putt. Not everyone can hit a 300-yard ball, but everyone can hit a one-foot putt. Therefore, one of the best ways to improve your golf score is to improve your putting.

Practice is one way to improve your putting, but it's not the only way. Putting can also be improved by ensuring that the putter is properly fitted and properly aligned.

Even if the putting stroke is technically perfect, golfers struggle to putt to the hole if the putter is not properly fitted or fails to hit its intended target. There are many ways to tailor a putter to a golfer.

FIG. 1 shows the components of a conventional putter. As shown in FIG. 1, putter 100 includes hitting face 101 , sole 102 , and hosel or neck 103 for connecting putter head 104 to shaft 105 .

FIG. 1 shows several different ways a putter can be oriented at address. Note that like reference numbers have been omitted. The putter 100 is shown tilted or de-lofted forward (A), in a neutral address position (B), and tilted backward (C).

Loft is the angle between the striking face and a vertical plane perpendicular to the ground plane G when the putter is held in a normal address position. The effective loft is the angle between the hitting face at the actual address position and a vertical plane perpendicular to the ground plane G. Thus, although the loft of putter 100 is static based on the shape of the putter, the effective loft can change depending on how putter 100 is pitched when addressing the ball.

A putter should have some effective loft, typically between about 4°, to roll the golf ball most effectively. This angle is sufficient to lift the ball slightly off the ground so that it immediately enters the roll. Each of the putters 100 shown by (A), (B), and (C) have a loft of approximately 4 degrees. However, each of the putters 100 shown by (A), (B), and (C) have different effective lofts. Since the putter 100 shown at (B) is at its normal address position, the effective loft α _B is equal to the putter's loft of 4°.

If the effective loft of the putter is too low, the putted ball will hit the ground as shown by FIG. 1A. The putter 100 shown at (A) has an effective loft α _A of about -1°. This causes the putt ball to bounce and then roll, making it difficult to hit the ball consistently in terms of distance and direction.

If the effective loft of the putter is too high, the ball putt will likely be launched into the air with a backspin, as shown in FIG. 1C. The putter 100 shown at (C) has an effective loft α _C of about 9°. These conditions also make it difficult to hit the ball consistently with respect to distance and/or direction.

Using a putter with the right loft is important because slight differences in loft angle can dramatically affect how your putt rolls. However, without special equipment, it is difficult to correctly identify the proper loft of a putter.

FIG. 2 shows another construction of a conventional putter. As shown in FIG. 2, putter 100 also includes heel 106, toe 107, and lie angle.

The lie angle is the angle between the center of shaft 105 and the ground plane G when putter 100 is solened in its normal address position. The effective lie angle is the angle between the center of the shaft and the ground plane G when the putter is held at actual address. The Rules of Golf require the lie angle of a putter to be less than 80 degrees. Like loft, it is important for golfers to use a putter with the proper lie angle.

FIG. 2 illustrates the effect of lie angle and effective lie angle on a putt golf ball by showing several different ways a putter can be oriented at address. As shown in FIG. 2, putter 100 is shown with toe 107 higher than heel 106 (A), in a neutral address position (B), and heel 106 higher than toe 107 (C). .

When putting a ball using a putter 100 with a lie angle that is too upright (A), the putter 100 is oriented such that the toe 107 is higher than the heel at impact, as shown in (A). The putter 100 shown in (A) has an effective lie angle βA of about 65°, which is about 5° less than the putter 100's actual lie angle. In this position, the loft of the putter 100 causes the ball to stray to the left of where the putter is aiming. As shown in FIG. 2, the aiming line is indicated by the solid black line and the arrow indicates where the ball is actually hit.

When the ball is putted using a putter with the correct lie angle (B), the lie angle and the effective lie angle are equal. The putter 100 shown at (B) has an effective lie angle βB of approximately 70°, which is equal to the lie angle. The putter 100 shown at (B) is oriented substantially parallel to the ground plane G at impact and the ball rolls in the direction the putter is aiming.

When the ball is putted using a putter with a lie angle that is too flat (C), the putter is oriented so that the toe 107 is lower than the heel 106 at impact. The putter 100 shown at (C) has an effective lie angle β C of approximately 75°, which is approximately 5° greater than the actual lie angle of the putter 100 . In this position, the loft of the putter causes the ball to go to the right of where the putter is aiming.

Therefore, it is important to use a putter with the proper lie angle, as small differences in lie angle can dramatically affect how the putt rolls. However, without special equipment, it is difficult to correctly identify the proper lie angle.

FIG. 3 shows the ideal path that the putter head should follow during the putter stroke. It is important to swing the putter properly. Since all putters are required by regulation to have a lie angle, the ideal putting stroke is not a pendulum stroke, but a stroke in which the putter head 104 follows an arcuate path 310 influenced by the putter's lie angle. become. This deviates from the target line 311 . FIG. 3 illustrates the "toe flow" 312 of the putter, which is gated by the putter head 104 remaining squared to the arcuate path 310 rather than remaining squared to the target line 311 during the stroke. It shows how to open and close. The arcuate path 310 may also be facilitated by having the viewpoint line 313 inside the target line 311 . A viewing line 313 corresponds to a vertical plane extending downward from the eye to the ground plane G. Swinging the putter without a proper arcuate path requires compensating and adjusting the putting stroke, which makes it difficult to hit the putt accurately.

Proper aiming of the putter is also very important when striking the putter. Even if a putter has perfect loft and lie and is swung along a perfect arcuate path, it is still difficult to cast if the putter is not properly oriented. It is not uncommon for a golfer to aim the putter multiple times to the right or left of the intended target. The longer the putt, the more impact such mis-aiming will have on the outcome of the putt. For example, aiming just once to the right or left of a target from 10 feet away corresponds to losing 2.1 inches to the target. Since the standard golf cup is only 4.25 inches wide, this one degree difference is enough to make the difference between a putt for par or a missed putt resulting in a bogey.

Therefore, there is a need for a system for properly fitting and aiming putters. This invention provides such a system and fitting method.

The systems, methods, and devices described herein have innovative aspects, none of which is singularly essential to, or solely responsible for, their desirable attributes. It's nothing to do. Without limiting the scope of the utility model claims, some advantageous features are summarized here.

The present technology relates generally to club fitting devices and methods of fitting golf clubs, and more particularly to devices and methods associated with putter-type golf clubs. More specifically, this invention relates to systems and methods that allow a player to adjust the putter or the orientation of the putter to achieve an optimal setup position. By improving the setup position, players inherently improve their putting efficiency.

One aspect of the invention relates to a fitting device for golf clubs. The fitting device may include a device body having a first opening formed in the device body for receiving the shaft of the golf club, coupled to the device body and extending from the upper side of the device body. a first angle indicator exposed to the surface; a second angle indicator coupled to the device body and exposed through the upper surface of the device body; and a second angle indicator coupled to the device body and exposed through the lower surface of the device body. and a stroke plane indicator.

According to embodiments, the first opening may be formed in the device body at a first predetermined angle with respect to the normal to the lower surface of the device.

The first predetermined angle can be between about 0° and about 30° relative to normal to the lower surface of the device body.

The first predetermined angle may preferably be between about 15° and about 25° relative to the normal to the lower surface of the device body.

The first predetermined angle is most preferably about 20 degrees relative to the normal to the lower surface of the device body, corresponding to the lie angle of the golf club.

The first angle indicator may be configured to measure a corresponding change in an effective lie angle of the golf club, where the effective lie angle of the golf club is: It is the angle between the shaft of a golf club and the ground.

The second angle indicator may be configured to measure a corresponding change in the effective loft angle of the golf club, the effective loft angle of the golf club being the impact of the golf club when the club is held at address. The angle between the face and the normal to the ground.

The fitting device may further include a second opening formed in the device body at a first predetermined angle, and the second opening may be configured to receive the stroke plane indicator therein.

The stroke plane indicator may include a collimated light source, and the collimated light source may emit collimated light when received within the second aperture.

The fitting device may include a fastener securable through a side of the device body adjacent the first opening.

The fastener may be securable through the side of the device body at a supplemental angle of the first predetermined angle.

Another aspect of the invention is directed to a system for fitting a putter, the system including a putter comprising a body, a striking face, a back surface opposite the striking face, and a heel. a toe opposite the heel; a sole; an upper surface opposite the sole; and a shaft coupled to the golf club head. The system may further include a fitting device, the fitting device comprising a device body and a first opening formed in the device body for receiving the shaft of the putter, and a first pre-set. a first opening formed at an angle; and a fastener configured to apply a force to the shaft within the first opening, the fastener passing through the outer surface of the device body and extending into the shaft. The fastener mountable adjacent the first opening and a first angle indicator coupled to the machine body and exposed on the upper surface of the machine body, the putter being held in an address position. the first angle indicator coupled to the device body and configured to measure the difference between the effective lie angle of the putter and the specified lie angle of the putter when the A second angle indicator exposed on the upper surface for measuring the difference between the putter's effective loft angle and the putter's specified loft angle when the putter is held in the address position. and a first groove formed in the lower surface of the device body configured to receive the collimated light source. and a reflective member removably attached to the striking face. In a first configuration, the fitting device is coupled to the shaft of the putter such that the collimated light source directs light toward the ground in a direction parallel to the shaft; A collimated light source projects light in a direction parallel to a target line directed toward the reflective member.

A first predetermined angle may be between about 0° and about 30° with respect to the vertical direction of the lower surface of the device body.

A first predetermined angle may be between about 15° and about 25° with respect to the vertical direction of the lower surface of the device body.

A first predetermined angle may be about 20 degrees with respect to the vertical direction of the lower surface of the device body and may correspond to the lie angle of the golf club.

A fastener may be attachable through the outer surface of the device body at a complementary angle to the first predetermined angle.

According to another aspect of the invention, a method of fitting a putter using a fitting device includes the steps of attaching the fitting device to the shaft of the putter; measuring at least one of an effective lie angle, an effective loft angle, and a stroke surface of the putter with an apparatus; and modifying at least one of the putter and the address position to measure the effective lie angle, the effective loft angle. and modifying at least one of the stroke planes.

The effective loft angle may be measured using a first angle indicator exposed through the upper surface of the fitting device, and the effective lie angle may be measured using a second angle indicator exposed through the upper surface of the fitting device. Measured using an angle indicator, the stroke plane is measured using a collimated light source exposed through the lower surface of the fitting device to project a beam of collimated light in a direction parallel to the shaft. .

The above method of fitting a putter with a fitting device further comprises the steps of removing the fitting device from the shaft; positioning the fitting device at a ground plane; and collimating in a direction substantially parallel to the ground plane. mounting the collimated light source on the fitting device to illuminate a beam of light; and a reflective surface coated onto the hitting face of the putter for the beam of collimated light emitted parallel to the upper ground plane. measuring the position of the reflected beam from the reflective surface; and adjusting at least one of the putter and the address location to adjust the reflective surface. and adjusting the position of the collimated beam reflected from.

According to another aspect of the invention, a shaft defining a shaft axis, a golf club head coupled to a first end of the shaft, and a second golf club head attached to the shaft opposite the first end. A fitting apparatus for a golf club including a golf grip attached to an end portion comprising a lower surface, an upper surface opposite the lower surface, and an outer surface connecting the lower surface and the upper surface. and an angle indicator coupled to the device body and exposed at the upper surface of the device body, such that the lower surface of the device body contacts the tip of the grip. , the device body is positioned relative to a plane extending perpendicular to the shaft axis such that when the device body is connected to the grip and the golf club is in a normal address position, the angle indicator is in a neutral position; at a predetermined angle.

According to another aspect of the invention, a method of fitting a putter with a fitting device comprises the steps of: attaching the fitting device to a grip of the putter; and holding the putter in an address position by the fitting device. and modifying at least one of said putter and said address location to obtain at least one of said effective lie angle and said effective loft angle. and adjusting.

The foregoing and other features and advantages of the invention will become apparent from the following description of the invention, as illustrated in the accompanying drawings. The accompanying drawings, which are incorporated herein and form a part of the specification, further serve to explain the principles of the invention and to enable a person skilled in the relevant art to make and use the invention.

A putter is shown with varying shaft tilt angles that alter its effective loft. A putter is shown with varying shaft tilt angles that alter its effective lie angle. Showing an arcuate putting stroke. 1 illustrates an exploded perspective view of a golf club fitting device in accordance with an exemplary embodiment of the present disclosure; FIG. 1 illustrates a perspective view of a golf club fitting device according to an exemplary embodiment of the present disclosure; FIG. 1 illustrates an overhead view of a golf club fitting device according to an exemplary embodiment of the present disclosure; FIG. 1 illustrates a side view of a golf club fitting device attached to a shaft, according to an exemplary embodiment of the present disclosure; FIG. 1 illustrates an overhead view of a golf club fitting device attached to a right-handed golf club, according to an exemplary embodiment of the present disclosure; FIG. 1 illustrates an overhead view of a golf club fitting device attached to a left-handed golf club, according to an exemplary embodiment of the present disclosure; FIG. 1 illustrates a side view of a golf club fitting device attached to a golf club, according to an exemplary embodiment of the present disclosure; FIG. 1 illustrates a front view of a golf club fitting device attached to a golf club, according to an exemplary embodiment of the present disclosure; FIG. 1 illustrates an exploded perspective view of the bottom of a golf club fitting device, according to an exemplary embodiment of the present disclosure; FIG. 1 illustrates a side view of a golf club fitting device according to an exemplary embodiment of the present disclosure; FIG. 1 shows a side view of a putter with a reflective member attached for use in conjunction with a golf club fitting device according to one embodiment of the present disclosure; FIG. 4 depicts a flow chart of a method of fitting a putter to a golf club fitting apparatus, according to an exemplary embodiment of the present disclosure; 1 illustrates a side view of a golf club fitting device attached to a golf club in accordance with an exemplary embodiment of the present disclosure; FIG. FIG. 4A illustrates a side view of a golf club fitting device attached to a grip, according to an exemplary embodiment of the present disclosure; 1 illustrates a perspective view of a golf club fitting device according to an exemplary embodiment of the present disclosure; FIG. 4 depicts a flow chart of a method of fitting a putter to a golf club fitting apparatus, according to an exemplary embodiment of the present disclosure;

detailed description of the idea

In the following detailed description, reference is made to the accompanying drawings which form a part of this disclosure. The illustrative embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be utilized and other changes may be made without departing from the spirit or scope of the subject matter presented herein. The aspects of the disclosure generally described herein and shown in the figures can be arranged, permuted, combined and designed in a wide variety of different configurations, all of which are expressly contemplated and disclosed. It will be readily understood that it forms part of the For example, a system or device can be implemented, or a method can be practiced using any number of the aspects set forth herein. Moreover, such systems or devices may be implemented using or using other structures, functions, or structures and functions in addition to or in addition to one or more aspects described herein. Such a method may be implemented. Alterations and further modifications of the features of the invention presented herein, as well as additional applications of the principles of the invention presented in this disclosure, can be made by those skilled in the relevant arts and in possession of this disclosure, should be considered within the scope of this invention.

Except in working examples or unless otherwise specified, all numerical ranges, amounts, values, and percentages such as material quantities, moments of inertia, center of gravity positions, loft and bounce angles, power spectrum, frequency, etc. are said to be "about." Even if a term is not explicitly labeled as a value, amount, or range, it may be read as if preceded by the word "about." Accordingly, unless indicated to the contrary, the numerical parameters set forth in the following specification and appended utility model claims are approximations that may vary depending upon the desired properties sought to be obtained by the present invention. be. At least, not as an attempt to limit the application of the doctrine of equivalents to utility model claims, each numerical parameter should be construed by applying normal rounding techniques, at least in light of the reported number of significant digits. is.

Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the invention are approximations, the numerical values set forth in the specific examples are reported as precisely as possible. Any numerical value, however, inherently contains certain errors resulting from the standard deviation found in their respective testing measurements. Further, when numerical ranges of various ranges are recited herein, it should be noted that any combination of these values, including the recited values, can be used.

In describing the present technology, the following terms may be used. The singular forms (corresponding to the originals "a," "an," and "the") include plural referents unless the context clearly dictates otherwise. Thus, for example, a reference to an item includes references to one or more items. The term "plurality" refers to two or more items. The term "substantially" does not require that the stated property, parameter, or value be exactly achieved, but is subject to, for example, tolerances, measurement errors, limits on measurement accuracy, and others known to those skilled in the art. means that deviations or variations, including the factors of, may occur in amounts that do not eliminate the effect that the property is intended to provide. For convenience, multiple items can be presented in a common list. However, these lists should be interpreted as if each member of the list were individually identified as a separate, unique member. Accordingly, individual members of such lists should not, without indication to the contrary, be construed as effectively equivalent to other members of the same list solely on the basis of their presentation in the common group. Further, when the terms "and" and "or" are used in conjunction with lists of items, they should be interpreted broadly such that any one or more of the listed items alone or in any other list May be used in combination with the items listed. The term "alternatively" refers to choosing one of two or more options, only the options listed at a time or one of the options listed, unless the context clearly indicates is not intended to limit the selection of only

Features of the present disclosure will become more fully apparent from the following description and the appended utility model claims, taken in conjunction with the accompanying drawings. After reviewing this discussion, and particularly after reading the section entitled "Detailed Description," you will appreciate how the illustrated features help explain certain principles of the present disclosure.

4-7, an embodiment of a golf club fitting device 400 is disclosed in accordance with the present invention. FIG. 4 is an exploded view of the golf club fitting device 400. As shown in FIG. FIG. 5 is a perspective view of the golf club fitting device 400. FIG. 6 is a bird's-eye view of the golf club fitting device, and FIG. 7 is a side view of the golf club fitting device 400. As shown in FIG.

As shown in FIGS. 4 and 5, the golf club fitting device 400 includes a device body 401, a first opening 402, a first angle indicator 403, a second angle indicator 404, one or more second angle indicators. It may include opening 405 , one or more third openings 406 , stroke face indicator 407 , fastener 408 , and first groove 410 .

As shown in FIG. 5 , first opening 402 is formed through upper surface 412 and lower surface 413 of golf club fitting device 400 and through side surface 414 of golf club fitting device 400 . It includes a slot portion 402a and an arcuate portion 402b connected to the distal end of slot portion 402a.

Referring to FIG. 6, the upper surface of golf club fitting device 400 is shown to better illustrate the relative dimensions. According to one embodiment of the present invention, golf club fitting device 400 may have a width W of between approximately 2.0 inches and 5.0 inches. Preferably, the width W of the golf club fitting device 400 is between about 2.5 inches and about 3.5 inches. Golf club fitting device 400 may have a length L of between about 1.5 inches and about 4.0 inches. Preferably, the length L of the golf club fitting device 400 is between about 2.0 inches and about 3.0 inches.

Slot portion 402a of first opening 402 may have a width W1 that is between about 0.5 inch and about 1.0 inch to accommodate insertion of a shaft. Preferably, slot portion 402a has a width W1 that is between about 0.5 inch and about 0.75 inch.

Arcuate portion 402b may have a width greater than the width of slot portion 402a to facilitate proper alignment of golf club fitting 400 on the shaft. According to one embodiment of the present invention, arcuate portion 402b of first opening 402 may have a width W2 that is between approximately 0.75 inches and 1.5 inches. Preferably, arcuate portion 402b has a width W2 that is between about 0.75 inch and 1.0 inch.

Second opening 405 can have a diameter D of between about 0.1 inch and about 1.0 inch. Preferably, the diameter D of the second opening 405 is between 0.25 inches and about 0.75 inches.

According to embodiments of the present invention as shown in FIG. 7, golf club fitting device 400 may have a height H of between about 0.1 inches and about 1.5 inches. Preferably, the height H of the golf club fitting device 400 is between about 0.25 inch and about 1.0 inch. Most preferably, the height H of the golf club fitting device is approximately 0.5 inches.

Body 401 of golf club fitting device 400 may be formed of any suitable material. Preferably, the body 401 of the golf club fitting device 400 is made of a lightweight material so as not to unduly affect the balance of the golf club when installed. The body 401 of the golf club fitting device 400 can be made of metal, wood, plastic, or composite materials. According to an illustrative example, body 401 of golf club fitting device 400 may be formed of anodized 6061 aluminum.

Referring to FIG. 7, golf club fitting device 400 is shown from the side to clearly show the unique aspects of first opening 402 . As shown in FIG. 7, both slot portion 402a and arcuate portion 402b of first opening 402 are formed at a first angle θ relative to normal to lower surface 413 of golf club fitting device 400 . good The first angle θ ensures that the golf club fitting device 400 is substantially in the ground plane G when the club fitting device 400 is attached to the shaft 105 of a putter held in a normal address position. Make it parallel. The first angle θ can range from about 0° to about 30° with respect to the normal to the lower surface 413 of the golf club fitting device 400 . Preferably, the first angle θ can range from about 15° to about 25° with respect to the normal to the lower surface 413 of the golf club fitting 400 . Most preferably, the first angle θ may be approximately 20° relative to the normal to the lower surface 413 of the golf club fitting device 400, which is the putter lie angle α.

As shown in FIGS. 5 and 7, the fastener 408 is configured to protrude into the first opening 402 and apply force to secure the shaft 105 within the arcuate portion 402b of the first opening 402. . According to embodiments of the present invention, fasteners 408 may be threaded fasteners that mate with corresponding threads of golf club fitting device 400 . Alternatively, fasteners 408 may be friction fit into corresponding openings formed in golf club fitting device 400 .

According to one embodiment, as shown in FIG. 7, fastener 408 can pass through side 414 of golf club fitting 400 at an angle complementary to first angle θ. That is, the central axis of fastener 408 can extend in a direction substantially perpendicular to the angled surface of first opening 402 . Alternatively, fastener 408 may pass through side 414 of golf club fitting 400 at an angle that does not complement first angle θ. For example, as shown in FIG. 5, fastener 408 may pass through side 414 of golf club fitting 400 at an angle substantially perpendicular to side 414 of golf club fitting 400 .

As shown in FIG. 7, when the shaft is secured within the golf club fitting apparatus 400, the fastener 408 is positioned such that the shaft 105 contacts the angled surface of the opposite arcuate portion 402b of the fastener 408. A force is applied to shaft 105 . The first angle θ of the surface of arcuate portion 402 b ensures that golf club fitting device 400 is substantially parallel to ground plane G when secured to shaft 105 .

4 and 5, second opening 405 is formed through upper surface 412 and lower surface 413 of golf club fitting device 400 . Stroke face indicator 407 may be secured within second opening 405 and exposed through lower surface 413 of golf club fitting 400 by any number of known securing methods. For example, the stroke plane indicator 407 may include a portion of increased diameter greater than the diameter of the second opening 405 such that the stroke plane indicator 407 cannot pass completely through the second opening 405 . Alternatively, the stroke plane indicator 407 may have a tapered diameter and the second opening 405 may have either a uniform diameter or a corresponding tapered diameter so that the stroke plane indicator 407 completely prevent it from passing through.

The second opening 405 is formed at a first angle θ such that the axis through the center of the stroke face indicator 407 is substantially parallel to the shaft angle of the putter secured within the first opening 402. , may be positioned to intersect the ground plane G in front of the hitting face. According to one embodiment, stroke plane indicator 407 can be a collimated light source, such as that emitted from a laser (ie, solid-state laser, laser pointer) of minimum power, typically less than about 3 mW. An axis passing through the center of stroke plane indicator 407 may be a beam of a laser.

According to one embodiment of the present invention, golf club fitting device 400 may include two secondary openings 405 for accommodating both right-handed and left-handed putters. As shown in Figures 8 and 9, one of the second openings 405 is set to the left of where the shaft contacts the arcuate portion 402b of the first opening 402 and The other is set to the right of where the shaft contacts arcuate portion 402b of first opening 402 .

As shown in FIG. 8 , when the golf club fitting device 400 is attached to a right-handed putter, the shaft 105 of the right-handed putter is secured within the first opening 402 and the stroke plane indicator 407 is aligned with the shaft 105 . is secured within a second opening 405 located to the left of where it contacts the arcuate portion 402b of the first opening 402 .

As shown in FIG. 9, when the golf club fitting device 400 is attached to a left-handed putter, the shaft 105 of the left-handed putter is secured within the first opening 402 and the stroke plane indicator 407 is positioned so that the shaft 105 is positioned in the first opening 402 . is fixed in a second opening 405 located to the right of where it contacts the arcuate portion 402b of the opening 402 of the .

As shown in FIGS. 8-11, the axis through the center of the stroke face indicator 407 is positioned within the first opening 402 regardless of whether the golf club fitting device 400 is attached to a right-handed or left-handed golf club. and intersects the ground plane G in front of the striking face at or near the center of the striking face. This relationship is independent of the height at which the golf club fitting device 400 is attached to the shaft. Although various shapes of putter shafts and putter necks/hose may result in the axis passing through the center of the stroke plane indicator 407 and intersecting the ground plane G at slightly different locations, this is an advantage of this invention. remains as it is, as explained below.

Referring back to FIGS. 4-6, golf club fitting device 400 may include one or more angle indicators. According to one embodiment, golf club fitting device 400 includes first angle indicator 403 and second angle indicator 404 . As shown in FIG. 6, the first angle indicator 403 and the second angle indicator 404 may be arranged substantially orthogonal to each other. The first angle indicator 403 may be positioned parallel to the leading edge of the putter's striking face when the putter's shaft is secured within the first opening 402 . The second angle indicator 404 can be positioned to be parallel to the line of sight when the putter shaft is secured within the first opening 402 .

According to one embodiment, first angle indicator 403 and second angle indicator 404 may be secured within third opening 406 such that they are exposed through upper surface 412 of golf club fitting apparatus 400 . A third opening 406 may be formed partially or completely through the body 401 of the golf club fitting device 400 . Preferably, third opening 406 is formed completely through body 401 of golf club fitting device 400 . First angle indicator 403 and second angle indicator 404 either from above through upper surface 412 of golf club fitting device 400 or from below through lower surface 413 of putter fitting device 400 It can be secured within the third opening 406 . Preferably, the first angle indicator 403 and the second angle indicator 404 are secured to the third opening 406 via the lower surface 413 of the golf club fitting device 400 by press fitting or snap fitting.

As shown in FIGS. 8 and 9, when the golf club fitting device 400 is attached to a right-handed or left-handed putter, the first angle indicator 403 can indicate the putter's effective lie angle. Angle indicator 404 can indicate the effective loft angle of the putter.

Referring to FIG. 6 , markings 409 can be formed on body 401 of golf club fitting device 400 proximate first angle indicator 403 and second angle indicator 404 . The markings 409 may be formed on the body 401 in any suitable manner, including but not limited to being etched, embossed, or drawn into the body 401 of the golf club fitting device 400 . good Markings 409 preferably indicate effective lie and loft angles of a fraction of a degree over a range of over 10 degrees. Alternatively, markings 409 may be formed directly on first angle indicator 403 and second angle indicator 404 .

Further, first angle indicator 403 and second angle indicator 404 may be provided in a number of different configurations, so that the scale and extent of markings 409 may vary depending on the accuracy required for a particular fitting. Good to be different. For example, as a golfer's skill level changes, different first angle indicators 403 and/or second angle indicators 404 may be utilized that measure a smaller or larger overall range of angles, thus marking 409 can represent larger or smaller increments, respectively.

By way of example, if the putter shaft 105 is fixed within the first opening 402, the first angle is 100 when the putter shown in FIG. Indicator 403 will show this change in angle. Similarly, when the putter shown in FIG. 7 is tilted downward, or "flatter," the first angle indicator 403 will indicate this change in angle.

Similarly, if the putter shaft shown in FIG. Indicator 404 will show this change in angle. Similarly, if the putter shown in FIG. 8 were tilted to the right, or "back tilted," the second angle indicator 404 would indicate this change in angle.

Referring to FIG. 9, golf club fitting device 400 is shown when mounted on a left-handed putter. The shaft of a left-handed putter is secured within first opening 402, and first angle indicator 403 and second angle indicator 404 are used to indicate the effective lie angle and effective loft angle, respectively. In this configuration, the effective lie angle can be measured on the same scale as the right hand configuration, but the effective loft angle is measured using a second set of markings as the loft angles for right and left handed clubs are opposite. be.

The first angle indicator 403 and the second angle indicator 404 are spirit levels, tilt sensors, tilt indicators, tilt meters, tilt gauges, tilt meters, tilt gauges, level meters, level gauges, curved gas-filled inclinometers, and It can be any angle indicator, including but not limited to curved fluid-filled inclinometers. Preferably, the first angle indicator 403 and the second angle indicator 404 have a radius of curvature and are curved vial-type fluid-filled ramps filled with damping fluid to ensure a smooth response angle indication. is the total. The radius of curvature of the inclinometer affects the measuring range of the inclinometer. Accordingly, the curvature may be adjusted to a desired extent based on, for example, player skill.

When the inclinometer includes bubble indicators, the ends of the first angle indicator 403 and the second angle indicator 404 are oriented lower than the central portion thereof. Conversely, if the inclinometer includes ball indicators, the ends of the first angle indicator 403 and the second angle indicator 404 are oriented higher than the central portion thereof.

10 and 11, a golf club fitting device 400 according to the present invention is shown attached to the shaft 105 of a golf club. FIG. 10 is a front view of a golf club fitting device 400 implemented in accordance with an embodiment of the invention, and FIG. 11 is a side view of the golf club fitting device 400. As shown in FIG.

As a result of the unique construction of golf club fitting device 400 , golf club fitting device 400 can be installed on any straight portion of shaft 105 . As shown in FIGS. 9 and 10, the golf club fitting device is attached progressively lower to each of golf clubs (A), (B), and (C). However, despite the different configuration, the axis of stroke path indicator 407 intersects ground plane G at substantially the same location. Note that a putter may include different types of shafts with different bend profiles. However, the axis of stroke path indicator 407 intersects ground plane G at substantially the same location for a given putter, regardless of the bending profile of the shaft or the mounting position on the shaft. If the putter is held deviating from the proper address position, the intersection will also move slightly, which helps the golf club fitting device 400 to ensure the putter is properly fitted. Provide additional ways to help.

12 and 13, golf club fitting device 400 is shown in a second configuration. In a second configuration, a ground-located golf club fitting 400 and a collimated light source are attached to the club fitting such that the axis through its center emits substantially parallel to the ground plane G. The collimated light source may be stroke plane indicator 407, or may be a different collimated light source. Preferably, the collimated light source is a stroke plane indicator 407 defined on the lower surface 413 of the golf club fitting device 400 when the golf club fitting device 400 is inverted as shown in FIGS. is positioned in a first groove 410 that

Referring to FIG. 14, the light emitted by the stroke face indicator 407 can be directed at the striking face of the putter to ensure proper alignment of the putter with the putting line. Stroke face indicator 407 is oriented perpendicular to the striking face of putter head 104 . Putter head 104 includes a reflective surface 1401 attached to striking face 101 . Incident beam 1301 emitted by stroke surface indicator 407 strikes reflective surface 1401 and leaves reflective surface 1401 as reflected beam 1302 to strike an opaque surface such as a ruler or paper, a grid such as graph paper, or a photodetector such as an electrical charge. Return to an indexed reference device such as a coupling device ("CCD"). Reflective surface 1401 can be any reflective surface, but is preferably a mirror or highly polished glass fused silica. Spacers or shims may be used to orient the reflective surface at the proper angle to return the collimated light source to the reference device.

When the golfer addresses the golf ball before making a putting stroke, the reflected beam 1302 is returned to the reference device. The position of the reflected beam 1302 on the fiducial assists the golfer in determining the orientation of the putter face prior to making the putting stroke. For example, if the putter face of a right-handed putter is held in an "open" orientation, the laser beam spot will be reflected to the right of center on the fiducial. Conversely, if the putter face of a right-handed putter is held in the closed orientation, the laser beam spot will be reflected to the left of center of the fiducial. Of course, if the putter face is square, the laser beam spot will be reflected directly to the center of the fiducial.

The invention also relates to methods of fitting and aligning golf clubs. The method includes providing a golf club having a head with a loft angle and a shaft extending from the head at a lie angle, attaching a golf club fitting device to the shaft of the golf club, and measuring the effective loft and the effective lie angle. include. The length and/or position of the golf club is then adjusted based on the effective lie angle and effective loft. The method also includes swinging the club, measuring a swing plane of the golf club using the golf club fitting device, and adjusting the swing plane in response to the measured swing plane. The method also includes aiming the golf club at the target, measuring the actual aim point of the golf club, and adjusting the aim based on the measured aim point.

Referring to FIG. 15, a flow chart diagram illustrates a preferred method of mounting and adjusting a club according to this invention. The approaches and techniques illustrated by the flowchart are sufficient to describe at least one implementation of this method. However, other implementations of this method may utilize approaches and techniques derived from those presented. It should be understood that the steps of the method outlined in the flowchart are not limited to the order listed; rather, these steps can be performed in any order and still be within the scope of this disclosure. .

As shown in FIG. 15, first, at 1501, a club fitting device 400 is attached to the shaft 105 of a golf club. Club fitting device 400 may be secured to shaft 105 with fasteners. The golf club fitting device 400 is positioned on the shaft 105 so that the leading edge (left end in FIG. 8, right end in FIG. 9) is substantially parallel to the leading edge of the putter's striking face.

Next, at 1502, the stroke face indicator 407 is secured to the golf club fitting device. A stroke plane indicator can be a collimated light source, such as a laser, that emits a collimated beam. Stroke plane indicator 407 may be mounted differently based on whether the putter is right-handed or left-handed.

Next, at 1503, the golf club is held at address and the first angle indicator 403 and the second angle indicator 404 are read to determine the putter's effective lie and loft angles. Specifically, first angle indicator 403 and second angle indicator 404 indicate the degree of deviation of the putter from its normal address position.

Next, at 1504 , the position of the putter and/or the putter itself can be adjusted based on the readings of 1503 . For example, if the readings of the first angle indicator 403 and the second angle indicator 404 indicate that at least one of the effective lie angle and the effective loft angle are not at specified levels, then the putter is repositioned to reduce the effective lie angle and the effective loft angle. The loft angle can be brought to a specified level. If the golfer is uncomfortable with dealing with the ball in a way that ensures that the effective lie angle and effective loft are at specified levels, the actual putter can be adjusted or replaced. Putter adjustment or replacement includes either changing the putter lie angle, changing the putter loft angle, or changing the putter shaft length so that the effective lie angle and effective loft angle are at specified levels. make it

Next, at 1505, the swing surface of the putter is evaluated. Specifically, stroke face indicator 407 is turned on and light emitted therefrom is focused at or near the area in front of the striking face of the putter. While the stroke face indicator 407 emits light, the putter is swung as if it were in use. As the putter is swung, the light emitted from the stroke plane indicator 407 indicates the swing plane on the ground. When the putter is swung on the proper plane, the path that the stroke plane indicator 407 follows on the ground will be parallel to the intended target line. For example, as shown in FIG. 8, when light emitted by stroke plane indicator 407 is focused onto target line 311 at address, a suitable arc-shaped path 310 causes stroke plane indicator 407 to perform backswing and follow-through. Trace target line 311 in. It is understood that depending on the type of shaft attached to the putter, the stroke plane indicator 407 may focus on the target line, the heel direction of the target line, or the toe direction of the target line. Regardless of where the stroke plane indicator 407 focuses, the stroke plane indicator 407 will be substantially parallel to the target line 311 when the stroke is in a plane and follows a suitable arcuate path 310. Trace a straight line.

Then, at 1506 , the stroke and/or putter can be adjusted based on the tracing of stroke plane indicator 407 at 1505 . Many different adjustments can be made based on the trace, including the golfer's eye movement, body alignment, grip, weight distribution, shape of the putter itself, and the like.

Next, at 1507, the golf club fitting device 400 is removed from the shaft and placed on the ground. A stroke plane indicator 407 is located on the golf club fitting device 400 .

Next, at 1508, the putter is placed in the address position such that the stroke face indicator 407 is illuminated toward the striking face 101 of the putter 100 while the stroke face indicator 407 is illuminated. As the golfer addresses the golf ball prior to making a putting stroke, the beam emitted from the stroke plane indicator 407 is returned to the reference device. The position of the reflected ray on the reference device helps the golfer determine the orientation of the putter face prior to making the putting stroke. For example, if a right-handed putter face is held in an "open" orientation, the laser beam spot will be reflected to the right of the center of the reference device. Conversely, if the putter face of a right-handed putter is held in the closed orientation, the laser beam spot will be reflected to the left of center of the reference device. Of course, if the putter face is square, the laser beam spot will be reflected directly to the center of the reference device.

Next, at 1509, the setup position and/or pattern can be adjusted based on how the laser beam spot is reflected. These adjustments may include the golfer's eye movement, body alignment, grip, weight distribution, shape of the putter itself, and the like.

16-18, a golf club fitting device according to one embodiment of the invention is disclosed. FIG. 16 is a side view of a golf club fitting device attached to a grip of a golf club; FIG. 17 is a side view of the grip and golf club fitting device; FIG. 18 is a perspective view of a golf club fitting device attached to a grip of a golf club;

As shown in FIG. 16, putter 160 includes putter head 1604 . Shaft 1605 is attached to putter head 1604 . Shaft axis 1609 extends from putter head 1604 through the center of shaft 1605 . When the putter is held in a normal address position (e.g., the putter's specified loft and lie angles are held equal to the putter's effective loft and lie angles), the shaft axis 1609 is in contact. It is arranged at a lie angle β with respect to the ground G. Grip 1606 is attached to the end of shaft 1605 opposite putter head 1604 . Golf club fitting device 1600 is attached to putter 160 at the butting end of grip 1606 .

Referring to FIG. 17, grip 1606 and golf club fitting apparatus 1600 attached thereto are shown in greater detail to illustrate some of the unique features of golf club fitting apparatus 1600 in greater detail.

As shown in Figure 17, the grip 1606 includes a prong 16061 at its terminal end. Although the tip 16061 of the grip 1606 may be formed at any angle to the shaft axis 1609, preferably the tip 16061 of the grip 1606 is formed substantially perpendicular to the shaft axis 1609. A golf club fitting device 1600 includes a device body 1601 . Device body 1601 may be made of metal, wood, plastic, or composite materials. According to an illustrative example, body 1601 of golf club fitting device 1600 can be formed of anodized 6061 aluminum.

Device body 1601 includes a lower surface 16013 , an upper surface 16012 opposite lower surface 16013 , and a side surface 16014 connecting lower surface 16013 and upper surface 16012 . A lower surface 16013 of device body 1601 is in contact with prong 16061 of grip 1606 when golf club fitting device 1600 is attached thereto. According to one embodiment of the present invention, the lower surface 16013 and the prongs 16061 of the grip 1606 substantially conform to each other such that the transition from the grip 1606 to the golf club fitting apparatus 1600 is substantially seamless. can be configured to

As shown in FIG. 17, lower surface 16013 and upper surface 16012 of device body 1601 can be formed to be angularly offset from each other. That is, the lower surface 16013 of the device body 1601 may be substantially parallel to the prong 16061 of the grip 1606, and the upper surface 16012 of the device body 1601 may be aligned when the putter 160 is held in its normal address position. It may be substantially parallel to the ground plane G.

Although the lower surface 16013 and the upper surface 16012 of the device body 1601 may be offset from each other, the critical dimension is actually between the upper surface 16012 of the device body 1601 and the plane 1611 perpendicular to the shaft axis 1609. It is the first angle θ. According to embodiments of the present invention, the first angle θ may be between about 0° and about 30°, preferably the first angle θ is between about 15° and about 25°. It may be about 20°, most preferably about 20°, and may be a complementary angle to the lie angle β.

When the first angle θ is in this range, the upper surface 16012 of the device body 1601 is substantially parallel to the ground plane G when the putter 160 is held in its normal address position.

Note that the first angle θ is the same as the first angle θ described above with respect to FIG. is measured with respect to the shaft axis 1609 rather than the lower surface 413 of the golf club fitting 400 in the case shown in FIG. 16, the first angle .theta. , controls the orientation of golf club fitting device 400 and golf club fitting device 1600 in a similar manner.

Note that shaft axis 1609 may not pass exactly through the center of grip 1606 . According to the Rules of Golf, the putter grip may be asymmetrical. For example, as shown in FIG. 17, the grip 1606 may be pistol-shaped, where the circumference of the grip 1606 is greatest near the tip 16061, and near the tip 16061, the majority of the grip 1606 is , below the grip 1606 from the golfer's point of view.

Referring to FIG. 18, a perspective view of golf club fitting device 1600 allows some additional features to be shown more clearly. As shown in FIG. 18, angle indicator 1603 is coupled to device body 1601 and is exposed on upper surface 16012 of device body 1601 . Angle indicator 1603 may be secured to device body 1601 by press fit, snap fit, adhesive, mechanical fixation, or the like.

Angle indicator 1603 may further include level indicator 16034 . Angle indicator 1603 can be any angle indicator, including bubble level, tilt sensor, tilt indicator, slope meter, slope gauge, gradient meter, gradiometer, level gauge, and level meter. However, it is not limited to these.

Preferably, level indicator 16034 is a ball or bubble configured to move around angle indicator 1603 to indicate both the effective loft angle and effective lie angle of putter 160 .

Angle indicator 1603 is configured to indicate both the effective loft angle and effective lie angle of the putter. Angle indicator 1603 may further include markings 16033 defined thereon to provide a scale for measuring the effective lie angle and effective loft angle of putter 160 when held at address. Markings 16033 may be formed by any suitable method, including but not limited to etching, molding, printing, or painting angle indicator 1603 .

According to an exemplary embodiment, the marking 16033 can include a first axis 16031 and a second axis 16032, as shown in FIG. First axis 16031 can be oriented such that an imaginary vertical plane containing first axis 16031 extends parallel to the leading edge of the hitting face of putter 160 when club fitting device 1600 is installed. Second axis 16032 is perpendicular to first axis 16031 such that when golf club fitting device 1600 is attached to putter 160, an imaginary vertical plane containing second axis 16032 extends parallel to the line of sight. It's fine.

The intersection of first axis 16031 and second axis 16032 represents the neutral position of putter 160 when the effective lie angle and effective loft angle are equal to the prescribed lie angle and prescribed loft angle, respectively. When the level indicator 16034 is located at the intersection of the first axis 16031 and the second axis 16032, the putter 160 is said to be at a normal address position indicating both the prescribed lie angle and the prescribed loft angle. can be done.

Movement of level indicator 16034 along first axis 16031 corresponds to changes in the effective lie angle of putter 160 . Movement of level indicator 16034 along second axis 16032 corresponds to changes in the effective loft angle of putter 160 . Accordingly, movement of level indicator 16034 in other directions corresponds to changes in both the effective loft angle and effective lie angle of putter 160 .

As an example, level indicator 16034 as shown in FIG. 18 is not centered on the intersection of first axis 16031 and second axis 16032 . From the golfer's perspective, in FIG. 18, the level indicator 16034 is offset from the second axis 16032 and thus positioned such that the effective lie angle of the putter is too large (i.e., the putter is too upright). It is The level indicator 16034 is also offset from the first axis 16031 and is therefore positioned such that the effective loft angle is too small (i.e., the putter is pushed too far forward and the grip is too close to the target). ing).

By adjusting the address position of the putter 160 to center the level indicator 16034 about the intersection of the first axis 16031 and the second axis 16032, the putter 160 is consistently positioned at its normal address position. good to be By practicing positioning the putter 160 in this manner, the golfer can become proficient at consistently and accurately addressing the golf ball. As detailed above, even slight deviations from normal address locations can cause putts to be missed. Accordingly, the golf club fitting device 1600 greatly assists in improving a golfer's set-up and thus their performance.

As shown in FIG. 18, in addition to or alternatively to the first axis 16031 and the second axis 16032, the marking 16033 is 1 It may contain one or more concentric circles. The marking 16033 comprises a grid centered at the intersection of the first axis 16031 and the second axis 16032 or a series of individual marks arranged along the first axis 16031 and the second axis 16032. good. As yet another example, marking 16033 may include a single point corresponding to the point corresponding to the intersection of first axis 16031 and second axis 16032 .

The markings 16033 of the angle indicator 1603 are between about -10 degrees and about 10 degrees, preferably between about -5 degrees and about 5 degrees, and most preferably between about -3 degrees and about 10 degrees for both lie and loft angles. It may be configured to indicate a range of deviation from the normal address position of between 3 degrees.

Another feature of this invention is a protrusion 16015, which is shown more clearly in FIG. Protrusion 16015 is configured to secure golf club fitting device 1600 to prong 16061 of grip 1606 . Protrusions 16015 may be tapered or have a constant diameter. One or more ribs 16016 may be included that increase in diameter relative to adjacent portions of the protrusion 16015 . Projection 16015 is sized to fit tightly within a hole formed in tip 16061 of a conventional golf grip, such as grip 1606 .

Although not shown in the drawings, according to an alternative embodiment of the invention, a first magnet may be fixedly attached to the lower surface 16013 of the device body 1601 and a second magnet may be: It may be attached to or integrally formed with the tip 16061 of the repeat pp1606. The first and second magnets may have opposite polarities such that the golf club fitting device 1600 can be removably coupled to the prong 16061 of the grip 1606 via magnetic forces.

According to other alternative embodiments, golf club fitting device 1600 may be removably coupled to prong 16061 of grip 1606 using adhesive or mechanical fasteners such as screws.

According to an embodiment of the present invention, the golf club fitting device is quickly and easily installed on a golf club for use during practice because the Rules of Golf do not permit moving parts to be attached to a golf club during play. good to be The configuration of the golf club fitting device, specifically the angular offset between the upper and lower surfaces of the device body, is such that when the angle indicator is installed, the golf club fitting device can be centered with respect to the ground. offset the lie angle of The central position of the angle indicator allows for accurate and consistent placement and allows the angle indicator to accurately and consistently measure both effective loft angle and effective lie angle. As a result, a golf club fitting apparatus according to embodiments of the present invention can uniquely improve a golfer's accuracy and consistency in set-up and thus in play.

The invention also relates to a method of fitting a golf club. The method comprises the steps of providing a golf club having a head having a loft angle and a shaft extending from the head and having a lie angle; attaching a golf club fitting device to a grip of the golf club; and adjusting the length and/or position of the golf club based on the effective lie angle and the effective loft angle.

Referring to FIG. 19, a flow chart diagram illustrates a preferred method of fitting and adjusting a club according to this invention. The approaches and techniques illustrated by the flowchart are sufficient to describe at least one implementation of this method. However, other implementations of this method may utilize different approaches and techniques than those shown. It should be understood that the steps of the method outlined in the flowchart are not limited to the order listed; rather, these steps can be performed in any order and still fall within the scope of the present disclosure. .

As shown in FIG. 19 and understood with reference to the golf club fitting apparatus of FIGS. Club fitting device 1600 may be secured to grip 1606 with protrusions 16015, adhesive, or another mechanical fastener, as described in detail above. Golf club fitting device 1600 is placed on prong 16061 of grip 1606 such that upper surface 16012 of device body 1601 is parallel to the ground when putter 160 is held in a normal address position.

Next, at 1902 , putter 160 is held at the address position and angle indicator 1603 is read to determine the effective lie angle and effective loft angle of putter 160 . Specifically, angle indicator 1603 may indicate deviations from the normal address position of putter 160 .

Next, at 1903 , the position of putter 160 and/or putter 160 itself can be adjusted based on the readings at 1902 . For example, if the reading of angle indicator 1603 indicates that at least one of the effective lie angle and effective loft angle is not at a predetermined level, then putter 160 will be placed at the specified effective lie angle and effective loft angle. May be rearranged to ensure it is on level. The actual putter 160 may be adjusted or replaced if the golfer feels uncomfortable dealing with the ball in a way that ensures that the effective lie angle and effective loft are at specified levels. The adjustment or replacement of the putter 160 can be accomplished by changing the lie angle of the putter 160, changing the loft angle of the putter 160, or changing the shaft length of the putter 160 so that the effective lie angle and effective loft angle are specified. This may include any of ensuring that the level is

Certain features that are described in the context of separate implementations when describing the technology herein can also be implemented in combination in a single implementation. Conversely, various features that are described in the context of a single implementation can also be implemented in multiple implementations separately or in any suitable subcombination. Further, even if technical features were previously described as working in a particular combination, and originally claimed as such, one or more features from the claimed combination may in some cases be cut out of the combination. Alternatively, the claimed combination may be directed to partial combinations or modifications of partial combinations.

Various modifications to the implementations disclosed herein will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other implementations without departing from the spirit or scope of the disclosure. good. Accordingly, utility model claims are not intended to be limited to the implementations shown herein, but rather to the broadest scope consistent with this disclosure and the principles and novel features disclosed herein. should be given.

1600 golf club fitting device 1601 device body 16012 upper surface 16013 lower surface 16014 side surface 16015 projection 16016 rib 1603 angle indicator 16031 first shaft 16032 second shaft 16033 marking 16034 level indicator 1604 putter head 1605 shaft 1606 grip 16061 tip 1609 shaft Axis 1611 Plane perpendicular to shaft axis 1609

Claims (13)

A shaft defining a shaft axis, a golf club head coupled to a first end of said shaft, and a golf grip coupled to a second end of said shaft opposite said first end. In a fitting device for a golf club comprising:
a device body comprising a lower surface, an upper surface opposite the lower surface, and an outer surface connecting the lower surface and the upper surface;
an angle indicator coupled to the device body and exposed at the upper surface of the device body;
the device body is coupled to the grip such that the lower surface of the device body contacts the tip of the grip;
The device body is arranged at a predetermined angle with respect to a plane extending perpendicular to the shaft axis such that the angle indicator is in a neutral position when the golf club is in a normal address position. A fitting device for a golf club, characterized by: 2. The fitting device for a golf club of claim 1, wherein said predetermined angle is complementary to the lie angle of said shaft axis. 3. The fitting device for golf clubs of claim 2, wherein said predetermined angle is between 0[deg.] and 30[deg.]. 4. The fitting device for golf clubs of claim 3, wherein said predetermined angle is between 15[deg.] and 25[deg.]. 5. The fitting device for golf clubs of claim 4, wherein said angle indicator is a bubble level. 6. A fitting apparatus for a golf club according to claim 5, wherein said angle indicator is configured to measure both an effective lie angle of said golf club head and an effective loft angle of said golf club head. 2. The fitting device for a golf club of claim 1, wherein said angle indicator is ball level. 2. A fitting apparatus for a golf club according to claim 1, wherein said angle indicator is configured to measure both an effective lie angle of said golf club head and an effective loft angle of said golf club head. the golf club fitting device further comprising a protrusion extending from the lower surface of the device body;
2. The fitting device for a golf club of claim 1, wherein an upper projection is configured to removably connect said device body to said prong of said grip. 10. The fitting device for a golf club of claim 9, wherein the protrusion is configured to fit within an opening formed in the tip of the grip. 2. The fitting device for a golf club of claim 1, wherein a first magnet is fixedly attached to said lower surface of said device body. a second magnet coupled to the grip proximate to the tip of the grip;
12. The golf club of claim 11, wherein said first magnet and said second magnet have opposite polarities such that said fitting device is removably coupled to said prong of said grip by magnetic force. fitting device. 2. The fitting device for golf clubs of claim 1, wherein said upper surface of said device body is substantially level with the ground plane when said golf club is in said normal address position.

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