Golf club laser system and method of using the same
The present invention is directed to a laser system for use in combination with a golf club. This laser system enables first and second beams of light to be projected therefrom to assist a golfer in setting up for a golf shot, aiming a golf shot, diagnosing one or more frailties in the golfer's swing, and/or increasing a level of consistency of the golfer's swing from one swing to the next. Indeed, these first and second light beams from the laser system may be utilized to provide information to enable one to discern if the golfer's swing deviates from an initial shaft plane of the golf club.
This application claims priority of U.S. Provisional Patent Application Ser. No. 60/551,662, filed Mar. 9, 2004, which is fully incorporated herein by reference.
STATEMENT REGARDING SPONSORED RESEARCH OR DEVELOPMENTNot applicable.
REFERENCE TO A MICROFICHE APPENDIXNot applicable.
FIELD OF THE INVENTIONThe present invention generally relates to the game of golf, and more particularly to at least generally improving a golfer's game using a golf club equipped with a laser system.
BACKGROUND OF THE INVENTIONIn the game of golf, it is generally desirable to get a golf ball in a hole/cup in as few strokes as possible. Accordingly, many products have been developed to at least generally assist a golfer in improving the golfer's game. Among those products, several attempts have been made to utilize lasers in association with one or more golf clubs to enhance the golfer's game. However, many of these products are cumbersome, significantly change the weight or balance of the club, and/or are designed to only be used in conjunction with a specialized target. Moreover, many of these products do not provide the performance desired to actually enhance a golfer's game.
Take putting for example, the size and slope of greens tends to vary widely from hole to hole and course to course. Indeed, a golfer may be faced with the task of making a relatively short putt of only a couple feet and the challenge of making a relatively long putt of tens of feet all in the same round of golf. This undertaking of trying to make a putt is generally complicated by the “lie” of the golf ball. In other words, for example, not all 10-foot putts are the same. To the contrary, some may be uphill, some may be downhill, some may travel over a substantially flat surface, some may include one or more side-to-side breaks, and some may even include combinations of the prior.
To make the shot (i.e., putt the ball into the hole), it is commonly desirable to at least generally align the ball and the putter with a mark (imaginary or otherwise) at which the ball is to be shot, stroked, hit, rolled, or the like. However, the golfer may not be aware that the golfer opens and/or closes the face of the golfer's putter during the normal golf swing. Moreover, and by way of example, the golfer may not be aware that the golfer's generally pendular putting stroke includes undesired deviations from a preferred substantially planar motion of the club shaft.
The prior art has failed to provide an effective laser-based system that is at least generally diagnostic of a golfer's swing and the tendencies thereof. Further, the prior art has failed to provide an effective laser-based system that enables a golfer to at least generally address the many variables in shots and lies that the game of golf provides. That is, the prior art has failed to provide a laser-based system for enhancing a golfer's game that is at least generally useful over a wide range of golf shot situations.
SUMMARY OF THE INVENTIONAccordingly, it is an object of the present invention to provide a laser system for a golf club that enables diagnostic evaluation of a golfer's swing. Relatedly, it is another object of the present invention to provide a laser system for a golf club that enables one to determine whether a golfer is opening and/or closing a face of the golf club during various stages in the golfer's swing. Still another object of the present invention to provide a laser system for a golf club, the accuracy of which is not significantly affected by flexion of the golf club shaft during the golf swing. Yet another object is to provide a laser system for a golf club that does not significantly affect the weight distribution of the golf club. Still yet another objective is to provide a laser system for a golf club that promotes developing a consistency of a golfer's swing/stroke. And still yet another object is to provide golf club system that is capable of at least generally enhancing a golfer's game, a portion of this golf club system including a golf club that may be utilized in golf competitions. These objects, as well as others, may be met by the following invention.
In one aspect, the present invention is directed to a laser system for use in combination with a golf club. This laser system may be said to include a light source and a beam splitter for splitting a light beam from the light source into at least first and second light beams. This beam splitter is generally designed so that at least one of the first and second light beams traverses both an xz-plane and a yz-plane of a Cartesian coordinate system while the face of the golf club is substantially parallel to an xy-plane of the Cartesian coordinate system. Herein, a “beam splitter” generally refers to an apparatus that is capable of at least generally dividing a common light beam into first and second light beams exhibiting corresponding and differing first and second vectors. For instance, the first light beam may include about 30% of the original, common light beam, and the second light beam may include about 70% of the original, common light beam.
In one embodiment this laser system may be located at least generally within a shaft of the golf club. By contrast, the laser system may be designed to be releasably interconnected with an exterior of the golf club in another embodiment. For instance, the laser system may be configured to be releasably interconnected with the shaft of the golf club in an appropriate snap-on fashion.
Some embodiments of this laser system may be equipped with the ability to adjust an orientation of at least a portion of the beam splitter relative to the light source. So, for instance, a portion of the beam splitter may be capable of exhibiting numerous angles and/or orientations relative to another portion of the beam splitter and/or the light source. By contrast, other embodiments of this laser system may have a beam splitter with first and second portions that exhibit substantially fixed orientations and/or angles relative to each other, the light source, the shaft, and/or the face of the golf club.
Another aspect of the invention is directed to a golf club assembly that includes a shaft having a hosel end and an opposing handle end (or butt end). A handle or grip is interconnected with the shaft toward the handle end of the shaft, and a head assembly equipped with a hosel is interconnected with the shaft toward the hosel end of the shaft. Further, this golf club assembly is equipped with a laser system including a light source that is located at least generally within the shaft. This light source is generally spaced from the hosel end of the shaft by a first distance and spaced from the handle end of the shaft by a second distance. Preferably, the first distance is less than the second distance. In other words, it is generally preferred that the light source is generally disposed closer to the hosel end of the shaft than to the handle end of the shaft. This preferred position of the light source in the handle generally reduces a tendency for inaccurate light beam projections from the laser system as a result of flexion of the shaft during a swinging of the golf club assembly.
The laser system may include a battery unit. This battery unit is generally disposed within the shaft of the golf club assembly. More particularly, it is generally preferred that the battery unit be disposed toward a handle end of the shaft. This preferred positioning of the battery unit may be said to facilitate access to the battery unit to ease replacement of batteries associated with the battery unit. It should be noted that some embodiments of the golf club assembly may include laser systems that have battery units disposed in other appropriate locations such as, but not limited to, the handle, and the head assembly of the golf club assembly. While a position of the battery unit within the shaft may be maintained or at least generally promoted in any of a number of appropriate manners, it is preferred that rubber O-rings or a silicone-based adhesive be utilized to also provide a dampening function.
Some embodiments of the laser system associated with the golf club assembly include a beam splitter, such as the beam splitter described above. This beam splitter may be positioned in any appropriate location as long as it can at least generally receive light from the light source and provide first and second beams therefrom. In one preferred embodiment, the beam splitter is attached to at least one of the hosel of the head assembly and the shaft.
Still another aspect of the invention is directed to a golf system that includes a first golf club having a laser system disposed with a shaft of the same, and a second golf club devoid of such a laser system. Moreover, the second golf club has a substantially identical loft and weight as the first golf club. This golf system may be said to provide a benefit of enabling a golfer to practice with the first golf club to enhance the golfer's game and also utilize the second golf club in competitions in which a golf club equipped with a laser system may not be permitted.
With regard to this golf system, the first and second golf clubs may have one or more similar characteristics. For instance, the second golf club may exhibit a substantially identical weight ratio as the first golf club. The second golf club may have a substantially identical shaft length as the first golf club. The second golf club may have a substantially identical handle as the first golf club. The second golf club may have a substantially identical club face as the first golf club. Indeed, the first and second golf clubs, for all practical purposes, may substantially look and feel like the same club.
The first and second clubs of this golf system maybe any appropriate clubs. For instance, in one embodiment, the first and second golf clubs may both be putters. In other embodiments, the first and second golf clubs may both be irons or woods.
Yet another aspect of the invention relates to a method of executing a golf swing. In this method, first and second visible spots are displayed on at least one surface by projecting corresponding first and second light beams from a laser system associated with a golf club. In addition, the golf club is swung while the first and second visible spots are being displayed. These first and second visible spots travel in a direction substantially parallel to a shaft plane of the golf club during the swinging step. This may be said to provide a benefit of enabling a golfer to determine if the shaft plane of the golf club exhibits an undesired relationship relative to a desired ball path and/or target line.
At least one of the first and second spots that are displayed may be displayed on at least one surface with one or both of these spots being located at predetermined distances from the golf club. For instance, the first spot may be displayed only a short predetermined distance from a face of a head of the golf club while the second spot is displayed a greater predetermined distance from the face of the golf club. The surface(s) on which the first and second spots are displayed may be any appropriate surface(s) including, but not limited to a floor, a green, and the ground.
When the golf club is swung, it may be said that an orientation of at least a portion of the shaft plane of the golf club is at least generally displayed. So, for example, if one or both the first and second spots travel in a path that is substantially parallel to a desired target line and/or ball path during the swing, one may determine that the golfer's swing was accomplished within the original shaft plane of the golf club. Conversely, if one or both the first and second spots travel in a path that is not aligned with or not substantially parallel to a desired target line and/or ball path during the swing, one may determine that the golfer's swing deviated from the original shaft plane of the golf club and/or that the club face was opened and/or closed during the swing. At least in one embodiment, this feature may said to be beneficial in determining whether a golfer is opening or closing the face of the club during the golfer's swing and/or whether the golfer is moving the club toward and/or away from the golfer's body during the swing.
Still yet another aspect of the invention is directed to a method of using a laser assembly in combination with a golf club. In this method, a first light beam is projected in a first direction substantially parallel with a shaft plane of the golf club. Further, a second light beam is projected in a second direction characterized by having an at least generally downward component. In other words, the second light beam is directed at least generally toward a surface such as a floor, ground surface, or the like. A location at which the second light beam may be said to at least generally intersect or interface with this surface maybe said to be indicative of an end point of a target line that is remote from a head of the golf club. This target line may be characterized as being found at least generally within a plane that is substantially vertically oriented and that extends through a central portion of the head of the golf club.
The first and second light beams that are projected may be derived from a common light source. Indeed, a beam splitter may be utilized to assist in providing these first and second light beams. As such, it may be said that the method may include the steps providing a common light beam and at least generally splitting the common light beam to provide the first and second light beams.
The first and second light beams that are provided in this method may or may not be of the same magnitudes. In one embodiment, the first and second light beams may exhibit corresponding first and second intensities in which the second intensity is greater than the first intensity. This maybe beneficial in the case where the end point of the target line is a significant distance from the face of the golf club.
In some embodiments of the method, the target line may be traversed by both the first and second light beams. This target line may be may be substantially parallel with or may be found at least generally within the shaft plane of the golf club.
A further aspect of the invention is in the preferred relative angles of the light beams respecting the shaft axis of the club and the projected beam toward a target at a variety of target distances.
Various refinements exist of the features noted in relation to the above-described aspects of the present invention, and further features may also be incorporated as well. These refinements and additional features may exist individually or in any combination. While the present embodiment is described in terms of a laser and its columinated light, any energy source providing a concentrated beam of energy which may be tracked on a surface might be utilized. Light at wavelengths other than visible might be used. Generally, each of the various features and refinements discussed herein in relation to the present invention may be utilized alone or in any combination in any of the aspects of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS
FIGS. 7A-D are diagrammatic representations of one embodiment of the invention.
FIGS. 8A-D are diagrammatic representations of another embodiment of the invention.
FIGS. 9A-D are diagrammatic representations of yet another embodiment of the invention.
The present invention will now be described in relation to the accompanying drawings, which at least assist in illustrating the various pertinent features thereof. While the following drawings illustrate a laser system of the invention in relation to a putter, it should be noted that other embodiments of the invention include a laser system that is or at least may be associated with another golf club such as an iron or a wood.
The above-described power source 12, light source 14, and beam splitter 16 are generally disposed in an appropriate housing 26. This housing 26 is generally equipped with a first port 30 to enable the first light beam 22 to be projected out from the housing 26, and a second port 32 to enable the second light beam 24 to be projected out from the housing 26. These first and second ports 30, 32 may refer to any appropriate features enabling light beams to travel therethrough. For instance, one or both of these first and second ports 30, 32 may be openings in the housing 26. As another example, one or both of these first and second ports 30, 32 may refer to at least generally transparent or at least semi-transparent windows enabling beams of light to pass therethrough.
In one embodiment of the laser system 10 of
Alternatively, the beam splitter 16 of the laser system 10 may include a fixed angle of projection for providing the second light beam 24. This fixed angle of projection preferably includes an at least generally downward component so that the second beam 24 is projected at an angle at least generally toward, for example, the ground or floor surface. In such an embodiment, the mounting mechanism 28 may be appropriately configured to enable the laser system to be attached to a shaft of a golf club at various locations along a length of the shaft of the club. The position of the laser system 10 on the shaft of the club in such an embodiment maybe dependent upon the distance that the golfer is from a desired target location. For example, the laser system 10 may be interconnected with a shaft of a putter at a first location that is near a hosel of the putter to provide an appropriate second beam 24 for a 10-foot putt. Continuing with the example, the laser system 10 may be interconnected with the shaft of the putter at a second location that is closer to a grip of the putter and further from the hosel than the first location to provide any appropriate second beam 24 for a 20-foot putt.
Referring particularly to
Still referring to
As shown in
A second portion of the light beam 56 shown in
With regard to the above described first and second ports, one or both may be shaped to allow only a part of one or both of the beams 70, 76 to pass therethrough. This feature may provide for the illuminated spots to exhibit one or more desired patterns and/or shapes on the ground, floor, and/or ball. For example, these illuminated spots may be resemble a line segment, an arrow, a circle, a dot, a polygon, or any other appropriate shape, letter, number, or symbol.
As the head assembly 48 is moved forward from the position in
Conversely, FIGS. 7C-D show that the paths of travel 86 of the spots 82, 84 are not parallel with the target line 80. Based on the paths of travel shown in
As the head assembly 78 is moved forward from the position in
Conversely, FIGS. 8C-D show that the paths of travel 86 of the spots 82, 84 are at least generally arcuate and not parallel with the target line 80. Based on the paths of travel 86 shown in
As the head assembly 78 is moved forward from the position in
Conversely, FIGS. 9C-D show that the paths of travel 86 of the spots 82, 84 are at least generally arcuate and not parallel with the target line 80. Based on the paths of travel 86 shown in
Accordingly, it may be said that the embodiments disclosed in relation to
Indeed, the ability to provide for vertical and horizontal adjustment of the reflected beam 70 (
By contrast, “vertical adjustment” refers to the ability of the golf club assembly 40 (e.g., the beam splitter 64 thereof) to be adjusted so that the reflected beam 70 can be aimed or directed to at least generally approach, traverse, or diverge from a ground plane 92 (e.g., floor plane, green plane, or the like) that is substantially perpendicular to the club plane 90 and that at least generally extends out from and into the page of
Those skilled in the art will now see that certain modifications can be made to the assembly and related methods herein disclosed with respect to the illustrated embodiments, without departing from the spirit of the instant invention. And while the invention has been described above with respect to the preferred embodiments, it will be understood that the invention is adapted to numerous rearrangements, modifications, and alterations, and all such arrangements, modifications, and alterations are intended to be within the scope of the appended claims.
Claims
1. A laser system for use in combination with a golf club, comprising:
- a light source;
- a beam splitter for splitting a light beam from the light source into first and second light beams, wherein the beam splitter is designed so that at least one of the first and second light beams traverses both an xz-plane and a yz-plane of a Cartesian coordinate system, wherein an xy-plane of the Cartesian coordinate system is substantially parallel with a face of the golf club.
2. A laser system, as claimed in claim 1, wherein:
- the laser system is disposed within a shaft of the golf club.
3. A laser system, as claimed in claim 1, wherein:
- the laser system is releasably interconnectable with the golf club.
4. A laser system, as claimed in claim 3, further comprising:
- means to adjust an orientation of at least a portion of the beam splitter relative to the light source.
5. A golf club assembly, comprising:
- a shaft having a hosel end and an opposing handle end;
- a handle interconnected with the shaft toward the handle end of the shaft;
- a head assembly including a hosel that is interconnected with the shaft toward the hosel end of the shaft; and
- a laser system comprising: a light source disposed within the shaft, wherein the light source is separated from the hosel end of the shaft by a first distance, wherein the light source is separated from the handle end of the shaft by a second distance, and wherein the first distance is less than the second distance.
6. A golf club assembly, as claimed in claim 5, wherein:
- the laser system comprises a battery unit disposed within the shaft.
7. A golf club assembly, as claimed in claim 6, wherein:
- the battery unit is disposed toward the handle end of the shaft.
8. A golf club assembly, as claimed in claim 5, wherein:
- the laser system comprises a beam splitter.
9. A golf club assembly, as claimed in claim 8, wherein:
- the beam splitter is attached to at least one of the hosel of the head assembly and the shaft.
10. A golf system, comprising:
- a first golf club having a laser system disposed with a shaft of the first golf club; and
- a second golf club devoid of a laser system, wherein the second golf club has a substantially identical loft and weight as the first golf club.
11. A golf system, as claimed in claim 10, wherein:
- the second golf club has a substantially identical weight ratio as the first golf club.
12. A golf system, as claimed in claim 10, wherein:
- the second golf club has a substantially identical shaft length as the first golf club.
13. A golf system, as claimed in claim 12, wherein:
- the second golf club has a substantially identical handle as the first golf club.
14. A golf system, as claimed in claim 13, wherein:
- the second golf club has a substantially identical club face as the first golf club.
15. A golf system, as claimed in claim 14, wherein:
- the first and second golf clubs are both putters.
16. A golf system, as claimed in claim 14, wherein:
- the first and second golf clubs are both or both woods.
17. A method of executing a golf swing, the method comprising the steps of:
- displaying first and second visible spots on at least one surface by projecting corresponding first and second light beams from a laser system associated with a golf club; and
- swinging the golf club during the displaying step, wherein the first and second visible spots travel in a direction substantially parallel to a shaft plane of the golf club during the swinging step.
18. A method, as claimed in claim 17, wherein:
- the displaying step comprises displaying at least one of the first and second spots on at least one surface at at least one predetermined distance from the golf club.
19. A method, as claimed in claim 17, wherein:
- the displaying step comprises displaying both of the first and second spots on at least one surface at corresponding first and second predetermined distances from the golf club.
20. A method, as claimed in claim 17, wherein:
- the at least one surface comprises at least one of a floor and a ground plane.
21. A method, as claimed in claim 17, wherein:
- the swinging step comprises displaying an orientation of at least a portion of the shaft plane of the golf club.
22. A method of using a laser assembly in combination with a golf club, the method comprising the steps of:
- projecting a first light beam in a first direction substantially parallel with a shaft plane of the golf club;
- projecting a second light beam in a second direction having an downward component, wherein the second light beam intersects an end point of a target line that is remote from a head of the golf club, wherein the target line is located within a substantially vertically oriented plane that extends through a central portion of the head of the golf club.
23. A method, as claimed in claim 22, wherein:
- the first and second light beams are projected from a common light source.
24. A method, as claimed in claim 22, further comprising:
- providing a common light beam; and
- splitting the common light beam to provide the first and second light beams.
25. A method, as claimed in claim 22, wherein:
- the first and second light beams comprise corresponding first and second intensities, wherein the second intensity is greater than the first intensity.
26. A method, as claimed in claim 22, further comprising:
- traversing the target line with the first and second light beams.
27. A method, as claimed in claim 22, wherein:
- the target line is substantially parallel with the shaft plane of the golf club.
Type: Application
Filed: Mar 9, 2005
Publication Date: Sep 15, 2005
Inventors: Mark Finney (Camillus, NY), Norman Akins (Collierville, TN)
Application Number: 11/075,949