Golf tee positioning system and apparatus with removable tee insert

Abstract

A golf tee positioning system includes a turf simulating pad, a golf tee apparatus, and a golf tee. The golf tee apparatus includes a holder and a removable tee insert configured for use with the golf tee. The system enables a golf ball to be held in a stationary orientation by the golf tee at selectable, fixed heights above a reference surface.

Description

BACKGROUND(a) Technical Field

[0001] The present disclosure relates to systems and methods for positioning a golf tee, more particularly, to a golf tee positioning system configured to receive a golf tee apparatus with a removable tee insert that allows a golf tee to be positioned at selectable fixed heights above a reference surface.(b) Description of the Related Art

[0002] A golf tee is used to hold a golf ball in a fixed position and at a fixed height in relation to a reference surface to assist with alignment with the arc traversed by the contact face of a golf club being swung by a player. The golf ball is loosely retained by an upper surface of the golf tee. To transfer the maximum amount of energy, golf tee shots require the golf club to be swung such that the contact face passes cleanly through a resting position of the golf ball.

[0003] Misalignment of the contact face and the golf ball will almost certainly result in an inefficient transfer of energy from the golf club to the golf ball. If the golf ball is positioned too high, the contact face may not fully engage the golf ball, thereby wasting swing energy. If the golf ball is positioned too low, a partial impact between the contact face and the ground surface is likely, and energy will be dissipated ineffectively. Inefficient energy transfer can cause a reduction in power, a misdirected trajectory of the golf ball, and general misfortune for the player. Variables, such as height of the player, length of the golf club, player form, and player preference mean that there cannot be a universal height to set a golf ball above the reference surface for proper alignment. Therefore, proper positioning of the golf ball requires the player to have the ability to adjust the height of the golf tee.

[0004] Conventional golf tees are configured to be inserted into natural turf. The player controls the height of the tee, and therefore the height of the golf ball, by varying insertion depth of the golf tee. The player simply inserts or withdraws the tee from the natural turf until the golf ball is aligned with the arc traced by the contact face during the swing.

[0005] Simulated (i.e., artificial or synthetic) turf is becoming increasingly common. In particular, simulated turf is prevalent at golf practice ranges and course tee boxes. Among other reasons, simulated turf can be easier to maintain, can be more durable, and potentially offers a more consistent player experience. Players are therefore encountering simulated turf more frequently.

[0006] Correctly positioning a golf ball for proper alignment with the club face of the golf club during a swing is a drawback associated with simulated turf. Conventional tees cannot easily be inserted into the substrate of simulated turf, as can be done with natural turf. Many players must acquiesce and use synthetic tees that are compatible with the synthetic turf. These synthetic tees can be difficult to install, cumbersome to swap, and often are only available in limited fixed height configurations. Because the synthetic tees cannot be depth-adjusted, players are forced to accept the alignment these fixed heights provide. In view of the variables associated with each player and the importance of aligning the contact face with the golf ball, such a circumstance is unacceptable for most players.

[0007] Further, the material properties of synthetic tees make them unappealing for most players. Synthetic tees are often made of a very resilient material because of the relatively high expense associated with replacement. Typically, resiliency is inversely proportional to stiffness. Therefore, the synthetic tees often can have an overly flexible quality, which makes them undesirable for most players. Conventional tees are typically made of wood. Alternatively, conventional tees can be made of a plastic. Some players prefer the traditional feeling of a wood tee. Other players prefer the experience of a plastic tee. In all cases though, the material is often homogenous.

[0008] A system that may be configured to position a golf tee at various fixed heights and compatible with simulated turf is therefore desirable. Additionally, a system that can be configured to accept conventional tees or composite tees with non-homogenous material properties is needed.

[0009] The present disclosure describes systems and methods related to the above.SUMMARY

[0010] In one aspect of the present disclosure, a golf tee apparatus includes a holder. The holder includes a holder body and a cavity contained within the holder body configured to receive and retain a removable tee insert. The removable tee insert is configured to be removably mounted within the cavity of the holder. The removable tee insert includes an insert body and a plurality of receptacles within the insert body. Each of the receptacles are configured to receive a golf tee, and each of the receptacles have a distal depth relative to a proximal surface of the removable tee insert.

[0011] In another aspect of the present disclosure, the holder further includes a flange configured to interface with a distal surface of a turf simulating pad.

[0012] In another aspect of the present disclosure, the holder is made from a thermoplastic elastomer material with a Shore A hardness value between 45 A and 70 A.

[0013] In another aspect of the present disclosure, the depth of each receptacle is configured to be different.

[0014] In another aspect of the present disclosure, the receptacles of the removable tee insert have a cylindrical shape.

[0015] In another aspect of the present disclosure, the removable tee insert is made from an elastomeric polyurethane resin material.

[0016] In another aspect of the present disclosure, the golf tee is configured for use with the removable tee insert. The golf tee incudes a base configured to be removably mounted within one of the receptacles of the removable tee insert, a head configured to retain a golf ball in a fixed position, and a shaft defining a height of the head relative to the base.

[0017] In another aspect of the present disclosure, the golf tee is made from an elastomer material or wood.

[0018] In another aspect of the present disclosure, the base of the golf tee is cylindrical.

[0019] In another aspect of the present disclosure, the base of the golf tee is spherical.

[0020] In another aspect of the present disclosure, each receptacle is configured to receive and retain a conventional golf tee, the conventional golf tee comprising a base configured to be removably mounted within one of the receptacles of the removable tee insert, a head configured to retain a golf ball in a fixed position, and a shaft defining a height of the head relative to the base.

[0021] In another aspect of the present disclosure, each receptacle is configured to retain a conventional golf tee at various depths relative to a proximal surface of the removable tee insert.

[0022] In another aspect of the present disclosure, each receptacle extends longitudinally through the removable tee insert.

[0023] In another aspect of the present disclosure, each receptacle of the removable tee insert includes at least one relief profile configured to apply proportional clamping pressure to the golf tee.

[0024] In another aspect of the present disclosure, each receptacle has a substantially circular cross-section, and the relief profile is provided as a plurality of tangential slots, diametrically opposed with respect to the receptible and extending longitudinally through the removable tee insert.

[0025] In another aspect of the present disclosure, the plurality of receptacles is open to a recessed distal area of the removable tee insert, the recessed distal area defining a cavity configured to contain broken pieces of the golf tee.

[0026] In another aspect of the present disclosure, a golf tee positioning system includes a golf tee apparatus. The golf tee apparatus includes a holder that includes a holder body and a cavity contained within the holder body and configured to receive and retain a removable tee insert. The removable tee insert is configured to be removably mounted within the cavity of the holder. The removable tee insert incudes an insert body and a plurality of receptacles within the insert body, each of the receptacles configured to receive a golf tee, and each of the receptacles have a distal depth relative to a proximal surface of the removable tee insert. The golf tee positioning system further includes the golf tee configured for use with the removable tee insert. The golf tee includes a base configured to be removably mounted within one of the receptacles of the removable tee insert, a head configured to retain a golf ball in a fixed position, and a shaft defining a height of the head relative to the base. The golf tee positioning system also includes a turf simulating pad.

[0027] In another aspect of the present disclosure, the turf simulating pad incudes a proximal playing surface configured to simulate natural turf, a distal contact surface configured to interface with a ground surface, and a receiver configured to receive and retain the golf tee apparatus.

[0028] In another aspect of the present disclosure, the receptacles of the removable tee insert have a cylindrical shape and the receptacles are configured to receive the golf tee with a cylindrical base.

[0029] In another aspect of the present disclosure, a method for positioning a golf ball includes providing a turf simulating pad. The turf simulating pad includes a proximal playing surface configured to simulate natural turf, a distal contact surface configured to interface with a ground surface, and a receiver configured to receive and retain a holder. The method for positioning a golf ball further includes providing a holder. The holder includes a holder body and a cavity contained within the holder body and configured to receive and retain a removable tee insert. The method for positioning a golf ball also includes providing a removable tee insert, the removable tee insert configured to be removably mounted within the cavity of the holder. The removable tee insert includes an insert body, and a plurality of receptacles within the insert body, each of the receptacles configured to receive a golf tee. The method for positioning a golf ball further includes installing the removable tee insert within the cavity of the holder, installing the holder within the receiver of the turf simulating pad, and installing the golf tee within one of the receptacles within the insert body.

[0030] In another aspect of the present disclosure, each of the receptacles is configured to have a different distal depth relative to a proximal surface of the removable tee insert.

[0031] In another aspect of the present disclosure, the method for positioning a golf ball further includes installing the golf tee within the receptacle having the different distal depth to define a first desired fixed height of a head of the golf tee above the proximal playing surface.

[0032] In another aspect of the present disclosure, the method for positioning a golf ball further includes changing the receptacle having the different distal depth to define a second desired fixed height of the head above the proximal playing surface.

[0033] In another aspect of the present disclosure, each receptacle of the removable tee insert includes at least one relief profile configured to apply proportional clamping pressure to a conventional golf tee.

[0034] In another aspect of the present disclosure, the method for positioning a golf ball further includes installing the conventional golf tee within one of the receptacles to define a fixed height of a head of the golf tee above the proximal playing surface.

[0035] In another aspect of the present disclosure, the method for positioning a golf ball further includes exchanging the removable tee insert.

[0036] In another aspect of the present disclosure, the method for positioning a golf ball further includes setting a golf ball on a head of the golf tee.

[0037] In another aspect of the present disclosure, a cover is configured to be positioned and retained within the receiver, the cover further configured to simulate natural turf.

[0038] In another aspect of the present disclosure, the method for positioning a golf ball further includes installing the cover within the receiver.

[0039] In another aspect of the present disclosure, the turf simulating pad comprises a plurality of covers disposed on opposite sides of a longitudinal centerline.

[0040] In another aspect of the present disclosure, the method for positioning a golf ball further includes selecting the receiver based on whether a player is right-handed or left-handed.BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The following drawings are illustrative of particular embodiments of the present disclosure and therefore do not limit the scope of the present disclosure. Embodiments of the present disclosure will hereinafter be described in conjunction with the appended drawings, wherein like numerals denote like elements.

[0042] FIG. 1 is a perspective view of an embodiment of a golf tee positioning system;

[0043] FIG. 2 shows a perspective view of an example golf tee apparatus of the golf tee positioning system of FIG. 1;

[0044] FIG. 3 is a cross-sectional view of the golf tee apparatus shown in FIG. 2, taken through the line III-III;

[0045] FIG. 4 is a perspective view of a holder device of the golf tee apparatus of FIGS. 2 and 9;

[0046] FIG. 5 is a cross-sectional view of the holder device shown in FIG. 4, taken through the line V-V;

[0047] FIG. 6 is a perspective view of an example removable tee insert device of the golf tee apparatus of FIG. 2;

[0048] FIG. 7 is a cross-sectional view of the removable tee insert device shown in FIG. 6, taken through the line VII-VII;

[0049] FIGS. 8A-8C are perspective views of example golf tee devices of the golf tee apparatus of FIG. 2;

[0050] FIG. 8D is a perspective view of an example golf tee device of the golf tee apparatus of FIG. 9;

[0051] FIG. 9 shows a perspective view of another example of a golf tee apparatus of the golf tee positioning system of FIG. 1;

[0052] FIG. 10 is a cross-sectional view of the golf tee apparatus shown in FIG. 9, taken through the line X-X;

[0053] FIG. 11 is a perspective view of an example removable tee insert of the golf tee apparatus of FIG. 9; and

[0054] FIG. 12 is a cross-sectional view of the removable tee insert device shown in FIG. 11, taken through the line XII-XII.DETAILED DESCRIPTION

[0055] The inventive concepts are described with reference to the attached figures, wherein like reference numerals represent like parts and assemblies throughout the several views. Several aspects of the inventive concepts are described below with reference to example applications for illustration. It should be understood that numerous specific details, relationships, and methods are set forth to provide a full understanding of the inventive concepts. One having ordinary skill in the relevant art, however, will readily recognize that the inventive concepts can be practiced without one or more of the specific details or with other methods. In other instances, well-known structures or operation are not shown in detail to avoid obscuring the inventive concepts.

[0056] A golf tee positioning system 20 may include a playing area, a golf tee apparatus 100, and a golf tee. FIG. 1 depicts an example of the golf tee positioning system 20 in which the playing area can be configured as a turf simulating pad 22. The turf simulating pad 22 can include a proximal playing surface 24, a distal contact surface 26, a core 28, and a receiver 30. A player (i.e., a golfer) is positioned on the proximal playing surface 24 while using a golf club to strike a golf ball. The proximal playing surface 24 simulates aspects of the varieties of natural grass and turf specifications for various areas of play found on a golf course. The core 28 can be designed to simulate the properties and specifications of various layers of natural supporting soil found on the golf course. The distal contact surface 26 interfaces with a ground surface and defines a lower portion of the turf simulation pad 22. As described in greater detail below, the distal contact surface 26 can further function to retain the golf tee apparatus 100. The receiver 30 is configured to receive the golf tee apparatus 100. As discussed below, the player uses the golf tee apparatus to position a golf ball and execute a tee shot. In the example shown in FIG. 1, the receiver 30 is provided as an opening extending vertically from the proximal playing surface 24 to the distal contact surface 26. The receiver 30 is further configured to substantially match the outer dimensions of the golf tee apparatus 100 to provide a snug fit. Additional applicable aspects of suitable turf simulating surfaces and devices are disclosed by the instant inventor in U.S. Pat. Nos. 6,383,094, 6,139,443 and 5,830,080, the entire contents of which are incorporated by reference herein.

[0057] As shown in FIG. 1, the turf simulating pad 22 can be a rectangular shape with one receiver 30 disposed at an offset distance from a longitudinal centerline, extending lengthwise in the plane of the proximal playing surface 24. In alternative embodiments, the shape of the turf simulating pad 22 can be any suitable shape. Preferably, the shape of the turf simulating pad 22 is a polygon, symmetric about at least one axis. In other alternative embodiments, the turf simulating pad 22 can be provided with a plurality of receivers 30. For example, two receivers 30 can disposed on opposite sides of a centerline extending longitudinally in the plane of the proximal playing surface 24. A golf tee apparatus can be disposed in either one or both of the receivers 30. Such an arrangement of receivers 30 allows a player to choose a stance orientation that is suitable. For example, a right-handed player may choose an opposite location of the receiver 30 and the golf tee apparatus 100 from a left-handed player.

[0058] The turf simulating pad 22 can be provided with a cover (not shown). The cover is configured to be inserted into the receiver 30 when the golf tee apparatus 100 is not installed. The cover can be sized to provide a snug fit within the receiver 30. The cover can have a substantially similar cross-sectional shape to the turf simulating pad 22. Preferably, the cover is made to substantially similar specifications as the turf simulating pad 22. The cover can therefore be used with the turf simulating pad 22 instead of the golf tee apparatus 100 to provide a uniform proximal playing surface 24 in a vicinity of an empty receiver 30. The cover is further useful when the tee shots are not required or when there is an empty receiver 30.

[0059] In alternative embodiments, the playing area can comprise natural turf instead of the turf simulating pad 22. In such embodiments, the receiver 30 can be provided within the ground surface. The depth of the receiver 30 must be sufficient to contain the golf tee apparatus 100 at a suitable depth.

[0060] Referring to FIGS. 2-7 and 8A-8C, the golf tee apparatus 100 includes a holder 102 and a removable tee insert 150. The golf tee apparatus may further include golf tees 170, 180, and190. Features of the removable tee insert 150 and the golf tees 170, 180, and 190 interact to permit a golf ball to be retained at various fixed heights above a reference surface, for example, the turf simulating pad 22. From a position above the golf tee apparatus 100, the player can selectively configure the height of the golf tee by interacting with the golf tee apparatus 100.

[0061] Referring to FIGS. 4 and 5, the holder 102 can include a holder body 104 that defines a cavity 106. The cavity 106 can be configured to receive and retain the removable tee insert 150. The holder body 104 can further include a proximal surface 108 with a proximal opening 110. The proximal surface 108 defines a height of the holder 102. Preferably, the height of the holder 102 does not exceed a height of the turf simulating pad 22, as measured from the distal contact surface 26 to the proximal playing surface 24. In alternative embodiments, the height of the holder 102 is configured to be recessed from the proximal playing surface 24. The proximal opening 110 is open to the cavity 106. The proximal opening 110 can include a perimeter socket 112 that is configured to receive and interface with the removable tee insert 150. A mating surface 115 can be included within the cavity 106 to interface with the removable tee insert 150. Indexing elements 114 can be disposed within the cavity 106 and configured to interface with the removable tee insert 150 to further assist with receiving and positioning the removable tee insert 150.

[0062] The proximal surface 108 of the holder 102 can include a canted section 116. The canted section 116 is oriented at an angle 118 with respect to a horizontal plane containing the proximal surface 108 (see FIG. 5). As shown in FIG. 5, for example, the angle 118 results in a declined orientation for the canted section 116. Further, as depicted in FIGS. 2-5, the canted section 116 is provided at a leading edge of the holder 102. The leading edge of the holder 102 is a first edge encountered by the golf club as it is swung by the player. The canted section 116 minimizes the likelihood of a blunt force impact with the leading edge of the holder 102 by providing a gradual change in elevation, e.g., a ramp.

[0063] The holder 102 is configured to mount within the receiver 30 of the turf simulating pad 22. The holder body 104 of the holder 102 can define walls 124. The walls 124 are configured to fit within the receiver 30 of the turf simulating pad 22. Preferably, the walls 124 interface snugly within the receiver 30. In the example shown, the walls 124 are substantially vertical. Preferably, the walls 124 are shaped to provide a snug fit within the receiver 30. In alternative embodiments the walls 124 can be other suitable shapes. Flanges 120 can be provided at the base of the holder. The flanges 120 can be offset from the walls 124. The flanges 120 can include a mating surface 122 configured to interface with the distal contact surface 126 of the turf simulating pad 22. The holder 102 can be inserted within the receiver 30 from the distal side of the turf simulating pad 22. The distal contact surface 26 can interface with the mating surface 122 to retain the holder 102, and the receiver 30 can interface with the walls 124 to position the holder 102. In the example shown, the flanges 120 are provided along longitudinal edges of the holder 102. In alternative embodiments, the flanges 120 can be provided along only a portion of the base of the holder 102. In other alternative embodiments, the flanges 120 can be provided along the perimeter of the base. In other alternative embodiments, the flanges 120 can be omitted.

[0064] As shown in FIGS. 4 and 5, the holder 102 can be of a generally rectangular shape. Preferably, the holder 102, is shaped to form a closely bounding shell, and is configured to provide protection to the removable tee insert 150. In alternative embodiments, the holder can be a polygon, symmetric about at least one axis.

[0065] The holder 102 can be made from a thermoplastic elastomer material. Preferably, the holder 102 is made from a styrene ethylene butylene styrene block copolymer (SEBS) material. Preferably, the holder 102 exhibits a Shore A hardness value between 45 A and 70 A, when measured by a durometer. In alternative embodiments, the holder 102 could be made from ferrous metal, nonferrous metal, polymer materials, resin, or a composite. The holder 102 can be formed by an injection molding process or the holder 102 can be printed using a 3D printer. In other alternative embodiments, the holder 102 can be fabricated.

[0066] Referring to FIGS. 6-7, the removable tee insert 150 can be configured to be removably mounted within the cavity 106 of the holder 102. The removable tee insert 150 can include an insert body 152. The insert body 152 can define a proximal surface 154, an upper mating surface 156, a mating shoulder 158, an indexing surface 160, a distal surface 162, and an end surface 164. The distance between the proximal surface 154 and the distal surface 162 defines the height of the removable tee insert 150. As shown in FIGS. 2 and 3, the height of the removable tee insert 150 preferably is less than the height of the holder 102. In alternative embodiments, the height of the removable tee insert 150 is the same as the height of the holder 102. In other alternative embodiments, the height of the removable tee insert 150 is greater than the height of the holder 102. The proximal surface 154 can protrude from the upper mating surface 156 to define the mating shoulder 158. The proximal surface 154 is configured to fit within the proximal opening 110 of the holder. The upper mating surface 156 is configured to interface with the mating surface 115 of the holder 102. The mating shoulder 158 can be configured to interface with the perimeter socket 112 of the proximal opening 110 of the holder. The indexing surfaces 160 can be configured to interface with the indexing elements 114 of the holder 102. The end surfaces 164 define the extents of the removable tee insert 150.

[0067] Referring to FIG. 3, the removable tee insert 150 is configured to be inserted within the cavity 106 of the holder 102. The removable tee insert 150 is inserted from a distal end of the holder until the various surfaces, as described above, interface with each other. In particular, friction between the various interface surfaces retains the removable tee insert 150 within the holder 102. The mating shoulder 158 and the indexing surfaces 160 are configured to position the removable tee insert within the holder 102.

[0068] Referring to FIGS. 2-3 and 6-7, the removable tee insert 150 can include a plurality of receptacles 166 within the insert body 152. Each of the receptacles 166 can have a distal surface 168. The distance between the proximal surface 154 of the insert body 152 and the distal surface 168 defines a depth of each receptacle 166. As provided herein, each of the receptacles 166 can have a different depth by changing the depth of the distal surface 168. In alternative embodiments, the depth can be the same for each of the receptacles 166.

[0069] Each of the receptacles can have a mating surface 169. As shown, the receptacles have a substantially cylindrical shape defined by a uniform circular cross section. Preferably, the receptacles have a uniform cross section. The receptacles can further be symmetric about at least one axis. In alternate embodiments, the receptacles can have other suitable shapes, for example, those with a polygonal cross section or those with an elliptical cross section. As shown, each of the receptacles 166 has the same shape. In alternate embodiments, each of the receptacles can have different shapes, for example, to correspond to the different depths of the receptacles 166.

[0070] The removable tee insert 150 can be made of an elastomeric resin material. In alternative embodiments, the removable tee insert 150 can be made of an elastomeric polyurethane resin material suitable for rebound applications. In alternative embodiments, the removable tee insert 150 can be made from ferrous metal, nonferrous metal, polymer materials, resin, or a composite. The removable tee insert 150 can be made using a 3D printing process. In alternative embodiments, the removable tee insert 150 can be formed by an injection molding process. In other alternative embodiments, the removable tee insert 150 can be fabricated.

[0071] Referring to FIGS. 2-3 and 8A-8C, the golf tees 170, 180, and 190 can be configured for use with the removable tee insert 150. Specifically, the golf tees 170, 180, and 190 are configured to be removably mounted within one of the receptacles 166.

[0072] The golf tee 170 can include a base 172, a shaft 174, a head 176, and a distal end 178. The base 172 is configured to have a shape that is compatible with the cross-sectional shape of the receptacle 166 of the removable tee insert 150. The cross-sectional shape of the base 172 can substantially match the cross-sectional shape of the receptacle 166. For example, as shown in FIG. 8A, the base 172 is configured with a circular cross section and interfaces with the mating surface 169 of each receptacle 166. The mating surface 169 and the base 172 align the tee 170 within the receptacle 166. Friction between the surface interfaces, as previously described, retains the golf tee 170 within the receptacle 166.

[0073] The head 176 of the tee 170 is configured to retain the golf ball in a fixed, but releasable position. As shown, for example, the head 176 is configured as a dished surface with a substantially spherical concave shape. The head 176 is configured to interface with a convex surface of the golf ball. Weak friction and gravity can retain the golf ball on the head 176 but still permit the golf ball to release when struck with the golf club.

[0074] The shaft 174 can define the height of the head 176 relative to the base 172. The distance between a distal end 178 and the head 176 defines the height of the golf tee 170. The length of the shaft 174 can be varied to make golf tees 170 of different heights. The dimensions of the base 172 and the head 176 can remain constant while the length of the shaft 174 is varied to change the height of the golf tee 170. The varied length of the shaft 174 of the tees 170 in conjunction with different depths of the distal surface 168 of each of the receptacles 166 provides for numerous possible combinations to define the overall height of the head 176 of the golf tee 170, and therefore the golf ball, relative to a reference surface, such as the simulated turf pad 22.

[0075] The golf tee 170 can be made from an elastomeric resin. The golf tee 170 can further be made of a composite having at least two hardness values on a Shore A scale, when measured by a durometer. For example, the base 172 can be made rigid to provide structural stability, and the shaft 174 and head 176 can be made relatively flexible to provide resilience, or toughness. In alternative embodiments, the golf tee 170 can be made with uniform material properties. In other alternative embodiments, the golf tee 170 can be made of a polymer, a resin, a thermoplastic, or a composite. In other alternative embodiments, the golf tee 170 can be made of a natural material. For example, the golf tee 170 can be made of wood.

[0076] The golf tee 180 can include a base 182, a shaft 184, a head 186, and a distal end 188. The base 182 is configured to be compatible with the cross-sectional shape of the receptacle 166 of the removable tee insert 150. The cross-sectional shape of the base 182 can substantially match the cross-sectional shape of the receptacle 166. For example, as shown in FIG. 8B, the base 182 is configured with a circular cross section and interfaces with the mating surface 169 of each receptacle 166. The mating surface 169 and the base 182 align the tee 180 within the receptacle 166. Friction between the surface interfaces, as previously described, retains the golf tee 180 within the receptacle 166.

[0077] The head 186 of the tee 180 can be configured to retain the golf ball in a fixed, but releasable position. As shown, for example, the head 186 is configured as a dished surface with a substantially spherical concave shape. The head 186 can be configured to interface with a convex surface of the golf ball. Weak friction and gravity can retain the golf ball on the head 186 but still permit the golf ball to release when struck with the golf club.

[0078] The shaft 184 can define the height of the head 186 relative to the base 182. The distance between a distal end 188 and the head 186 defines the height of the golf tee 180. The length of the shaft 184 can be varied to make golf tees 180 of different heights. The dimensions of the base 182 and the head 186 can remain constant while the length of the shaft 184 is varied to change the height of the golf tee 180. The varied length of the shaft 184 of the tees 180 in conjunction with different depths of the distal surface 168 of each of the receptacles 166 provides for numerous possible combinations to define the overall height of the head 186 of the golf tee 180, and therefore the golf ball, relative to a reference surface, such as the simulated turf pad 22.

[0079] The golf tee 180 can be made of a natural material. For example, the golf tee 180 can be made of wood. Wood tees provide a natural and conventional feel for some players, which is desirable. The golf tee 180 can further be made of a composite having at least two hardness values on a Shore A scale, when measured by a durometer. For example, the base 182 can be made rigid to provide structural stability, while the shaft 184 and head 186 can be made relatively flexible to provide resilience, or toughness. In alternative embodiments, the golf tee 180 can be made with uniform material properties. In other alternative embodiments, the golf tee 180 can be made of a polymer, a resin, a thermoplastic, or a composite.

[0080] The golf tee 190 can include a base 192, a shaft 194, a head 196, and a distal end 198. The base 192 is configured to be compatible with the cross-sectional shape of the receptacle 166 of the removable tee insert 150. The cross-sectional shape of the base 192 can substantially match the cross-sectional shape of the receptacle 166. For example, as shown in FIG. 8C, the base 192 is configured with a spherical cross section and interfaces with the mating surface 169 of each receptacle 166. The mating surface 169 and the base 192 align the golf tee 190 within the receptacle 166. Friction between the surface interfaces, as previously described, retains the golf tee 190 within the receptacle 166. The spherical golf tee base 192 permits some relative rotation of the golf tee 190 within the receptacle 166. The cross section of spherical golf tee base 192 results in less interface contact with the mating surface 169, and therefore less friction. The relative rotational motion permitted can absorb some energy from the golf swing and reduce the chances of breaking the golf tee 190 if the swing is misaligned.

[0081] The head 196 of the golf tee190 can be configured to retain the golf ball in a fixed, but releasable position. As shown, for example, the head 196 is configured as a dished surface with a substantially spherical concave shape. The head 196 can be configured to interface with a convex surface of the golf ball. Weak friction and gravity can retain the golf ball on the head 196 but still permit the golf ball to release when struck with the golf club.

[0082] The shaft 194 can define the height of the head 196 relative to the base 192. The distance between a distal end 198 and the head 196 defines the height of the golf tee 190. The length of the shaft 194 can be varied to make golf tees 190 of different heights. The dimensions of the base 192 and the head 196 can remain constant while the length of the shaft 194 is varied to change the height of the golf tee 190. The varied length of the shaft 194 of the golf tees 190 in conjunction with different depths of the distal surface 168 of each of the receptacles 166 provides for numerous possible combinations to define the overall height of the head 196 of the golf tee 190, and therefore the golf ball, relative to a reference surface, such as the simulated turf pad 22.

[0083] The golf tee 190 can be made of a natural material. For example, the golf tee 190 can be made of wood. Wood tees provide a natural and conventional feel for some players, which is desirable. The golf tee 190 can further be made of a composite having at least two hardness values on a Shore A scale, when measured by a durometer. For example, the base 192 can be made rigid to provide structural stability, and the shaft 194 and head 196 can be made relatively flexible to provide resilience, or toughness. In alternative embodiments, the golf tee 190 can be made with uniform material properties. In alternative embodiments, the golf tee 190 can be made of a polymer, a resin, a thermoplastic, or a composite.

[0084] FIGS. 8D and 9-12 depict another example of a golf tee apparatus 250. The golf tee apparatus is configured for use in the golf tee positioning system 20 discussed above. Many features and aspects of the golf tee apparatus 250 are similar to the features and aspects discussed above in relation to the golf tee apparatus 100. The golf tee apparatus 250 differs from the golf tee apparatus 100, discussed above, because the golf tee apparatus 250 is configured to accept a conventional golf tee 370.

[0085] The golf tee apparatus 250 includes the holder 102 and a removable tee insert 300. The golf tee apparatus 250 may further include the conventional golf tee 370. Features of the removable tee insert 300 and the conventional golf tee 370 interact to permit a golf ball to be retained at various fixed heights above a reference surface, for example, the turf simulating pad 22. From a position above the golf tee apparatus 250, the player can selectively configure the height of the golf tee by interacting with the golf tee apparatus 250.

[0086] The holder 102 is substantially identical to the holder 102 discussed above in relation to the removable tee insert 150, and as shown in FIGS. 4 and 5. As such, the holder 102 can include a holder body 104 that defines a cavity 106. The cavity 106 can be configured to receive and retain the removable tee insert 300. The holder body 104 can further include a proximal surface 108 with a proximal opening 110. The proximal surface 108 defines a height of the holder 102. Preferably, the height of the holder 102 does not exceed a height of the turf simulating pad 22, as measured from the distal contact surface 26 to the proximal playing surface 24. In alternate embodiments, the height of the holder 102 is configured to be recessed from the proximal playing surface 24. The proximal opening 110 is open to the cavity 106. The proximal opening 110 can include a perimeter socket 112 that is configured to receive and interface with the removable tee insert 300. A mating surface 115 can be included within the cavity 106 to interface with the removable tee insert 300. Indexing elements 114 can be disposed within the cavity 106 and configured to interface with the removable tee insert 300 to further assist with receiving and positioning the removable tee insert 300.

[0087] The proximal surface 108 of the holder 102 can include a canted section 116. The canted section 116 is oriented at an angle 118 with respect to a horizontal plane containing the proximal surface 108 (see FIG. 5). As shown, for example, the angle 118 results in a declined orientation for the canted section 116. Further, as depicted in FIGS. 2-5, the canted section 116 is provided at a leading edge of the holder 102. The leading edge of the holder 102 is a first edge encountered by the golf club as it is swung by the player. The canted section 116 minimizes the likelihood of a blunt force impact with the leading edge of the holder by providing a gradual change in elevation, e.g., a ramp.

[0088] The holder 102 is configured to mount within the receiver 30 of the turf simulating pad 22. The holder body 104 of the holder 102 can define walls 124. The walls 124 are configured to fit within the receiver 30 of the turf simulating pas 22. Preferably, the walls 124 interface snugly within the receiver 30. In the example shown, the walls 124 are substantially vertical. Preferably, the walls 124 are shaped to provide a snug fit within the receiver 30. In alternative embodiments the walls 124 can be other suitable shapes. Flanges 120 can be provided at the base of the holder 102. The flanges 120 can be offset from the walls 124. The flanges 120 can include a mating surface 122 configured to interface with the distal contact surface 126 of the turf simulating pad 22. The holder 102 can be inserted within the receiver 10 from the distal side of the turf simulating pad 22. The distal contact surface 26 can interface with the mating surface 122 to retain the holder 102 and the receiver 30 can interface with the walls 124 to position the holder 102. In the example shown, the flanges 120 are provided along longitudinal edges of the holder 102. In alternative embodiments, the flanges 120 can be provided along only a portion of the base of the holder 102. In other alternative embodiments, the flanges 120 can be provided along the perimeter of the base. In other alternative embodiments, the flanges 120 are omitted.

[0089] As shown in FIGS. 4 and 5, the holder 102 can be of a generally rectangular shape. Preferably, the holder 102, is shaped to form a closely bounding shell configured to provide protection to the removable tee insert 300. In alternative embodiments, the holder 102 can be a polygon, symmetric about at least one axis.

[0090] The holder 102 can be made from a thermoplastic elastomer material. Preferably, the holder 102 is made from a styrene ethylene butylene styrene block copolymer (SEBS) material. Preferably, the holder 102 exhibits a Shore A hardness value between 45 A and 70 A, when measured by a durometer. In alternative embodiments, the holder 102 could be made from ferrous metal, nonferrous metal, polymer materials, resin, or a composite. The holder 102 can be formed by an injection molding process. In alternative embodiments, the holder 102 can be printed using a 3D printer. In other alternative embodiments, the holder 102 can be fabricated.

[0091] Referring to FIGS. 11-12, the removable tee insert 300 can be configured to be removably mounted within the cavity 106 of the holder 102. The removable tee insert 300 can include an insert body 302. The insert body 302 can define a proximal surface 304, an upper mating surface 306, a mating shoulder 308, an indexing surface 310, a distal surface 312, and an end surface 314. The distance between the proximal surface 304 and the distal surface 312 defines the height of the removable tee insert 300.

[0092] As shown in FIGS. 9 and 10, preferably the height of the removable tee insert 300 is less than the height of the holder 102. In alternative embodiments, the height the of the removable tee insert 300 is the same as the height of the holder 102. In other alternative embodiments, the height of the removable tee insert 300 is greater than the height of the holder 102. The proximal surface 304 can protrude from the upper mating surface 306 to define the mating shoulder 158. The proximal surface 304 is configured to fit within the proximal opening 110 of the holder 102. The upper mating surface306 is configured to interface with the mating surface 115 of the holder 102. The mating shoulder 308 can be configured to interface with the perimeter socket 112 of the proximal opening 110 of the holder 102. The indexing surfaces 310 can be configured to interface with the indexing elements 114 of the holder 102. The end surfaces 314 define the extents of the removable tee insert 300.

[0093] Referring to FIG. 10, the removable tee insert 300 is configured to be inserted within the cavity 106 of the holder 102. The removable tee insert 300 is inserted from a distal end of the holder 102 until the various surfaces, as described above, interface with each other. Friction between the various interface surfaces, as described above, retains the removable tee insert 300 within the holder 102. The mating shoulder 308 and the indexing surfaces 310 are configured to position the removable tee insert within the holder 102.

[0094] Referring to FIGS. 9-12, the removable tee insert 300 can include a plurality of receptacles 316 within the insert body 302. The insert body 302 can include an insert cavity 318. The insert cavity 318 extends longitudinally from the distal surface 312 to an intermediate surface 320. Each of the receptacles 316 extends longitudinally from the proximal surface 304 to the intermediate surface 320. The plurality of receptacles 316 are therefore open to the insert cavity 318. As shown, the receptacles 316 have a substantially cylindrical shape defined by a uniform circular cross section. Preferably, the receptacles have a uniform cross section. The receptacles 316 can further be symmetric about at least one axis. In alternate embodiments, the receptacles can have other suitable shapes.

[0095] Each of the receptacles 316 can have a mating surface 322. The mating surface 322 is configured to interface with the conventional golf tee 370. The mating surface 322 is further configured to retain the conventional golf tee 370 within the receptacle 316. For example, friction at an interface between the conventional golf tee 370 and the mating surface 322 of the receptacle 316 can retain the conventional golf tee 370 within the receptacle 316.

[0096] Each receptacle 316 can further include one or more relief profiles 324. As shown in FIGS. 9-12, for example, the relief profiles 324 can be provided as a plurality of slots that are tangential to each of the receptacles 316. The relief profiles 324 can extend from the proximal surface 304 to the intermediate surface 320. As shown, for example, two diametrically opposed relief profiles 324 are provided for each receptacle 316. The relief profiles 324 relieve local stress concentrations that can develop when inserting the conventional golf tee 370 into a receptacle 316. The local stress concentrations can develop due to an interference fit between the conventional golf tee 370 and the receptacle 316. The stress concentrations are relieved through a controlled material deformation in the vicinity of the relief profiles 324 upon insertion of the conventional golf tee 370. Relieving the stress concentrations is desirable to mitigate the possibility of damage to the receptacle 316. Further, relieving stress concentrations can assist in applying uniform and proportional clamping pressure at the interface between the receptacle 316 and the conventional golf tee 370. It is important to consistently maintain enough clamping pressure to dispose the conventional golf tee 370 in a substantially vertical orientation. Too much clamping pressure, however, can increase the probability of breaking the conventional golf tee 370 during a golfer's tee shot. Because the relief profiles 324 result in the controlled material deformation, the clamping pressure can be regulated and further self-adjusts to varying degrees of the interference fit. Variation of the conventional golf tee 370 dimensions, environmental conditions (i.e., temperature, humidity, etc.) and wear (e.g., due to fatigue loading) on the removable tee insert 300 can therefore be successfully accommodated. In alternative embodiments, the relief profiles 324 can be other suitable shapes.

[0097] The removable tee insert 300 can be made of an elastomeric resin material. In alternative embodiments, the removable tee insert 300 can be made of an elastomeric polyurethane resin material suitable for rebound applications. In other alternative embodiments, the removable tee insert 300 can be made from ferrous metal, nonferrous metal, polymer materials, resin, or a composite. The removable tee insert 300 can be made using a 3D printing process. In alternative embodiments, the removable tee insert 300 can be formed by an injection molding process. In other alternative embodiments, the removable tee insert 300 can be fabricated.

[0098] Referring to FIGS. 9-10 and 8D, the conventional golf tees 370 can be compatible for use with the removable tee insert 300. Specifically, the receptacles 316 can be configured to allow conventional golf tees 370 to be removably mounted. Conventional golf tees 370 can golf tees that are commercially available and configured for use in natural turf of simulated turf.

[0099] The conventional golf tee 370 can include a base 372, a shaft 374, a head 376, and a distal end 378. The base 372 can be a conventional spike configured for use with natural turf. The head 376 can be configured to retain the golf ball in a fixed, but releasable position. As shown, for example, the head 376 is configured as a dished surface with a substantially spherical concave shape. The head 376 can be configured to interface with a convex surface of the golf ball. Weak friction and gravity can retain the golf ball on the head 376 but still permit the golf ball to release when struck with the golf club.

[0100] The shaft 374 can define the height of the head 376 relative to the base 172. The distance between a distal end 378 and the head 376 defines the height of the conventional golf tee 370. The cross-sectional shape of the shaft 374 can substantially match the cross-sectional shape of the receptacle 316. For example, as shown in FIG. 8D, the shaft 374 is configured with a circular cross section that interfaces with the mating surface 322 of each receptacle 316. The mating surface 322 and the shaft 374 align the conventional golf tee 370 within the receptacle 316. Friction between the surface interfaces, as previously described, retains the conventional golf tee 370 within the receptacle 316. The height of the conventional golf tee 370, and therefore the golf ball, relative to a reference surface, such as the simulated turf pad 22, can be controlled by the player. Because friction is the mechanism retaining the conventional golf tee 370 within the receptacle 316, the player can control the height of the head 376 relative to the turn simulating pad 22 by varying the depth of insertion. The receptacle is open to the insert cavity 318, thus permitting insertion of the conventional golf tee 370 past the intermediate surface 320.

[0101] The insert cavity 318 can collect broken pieces of the conventional golf tee 370. If the shaft 374 of a conventional golf tee 370 is broken and remains within the receptacle 316, a second conventional golf tee 370 (or similar object) can be inserted from the proximal surface 304 and into the receptacle 316 to force the broken portion out of the receptacle 316 and into the insert cavity 318. Broken portions of the conventional golf tee 370 can be periodically collected from the insert cavity 318.

[0102] The conventional golf tee 370 can, for example, be made of wood. In alternative embodiments, the conventional golf tee 370 can be made can be made of a polymer, a resin, a thermoplastic, or a composite. In other alternative embodiments, the conventional golf tee 370 can be made of a natural material. In other alternative embodiments, the conventional golf tee 370 can be made of any suitable material.

[0103] The golf tee positioning system 20 can be used to position a golf ball at a defined height above a reference surface, such as the turf simulating pad 22. To do so, for example, the turf simulating pad 22 can be provided. A golf tee apparatus, for example, the golf tee apparatus 100, 250, can be provided depending on the type of golf tee desired by the player. For example, the player can select from either golf tees 170, 180, or 190 or the conventional golf tee 370. If the golf tees 170, 180, or 190 is desired, then the golf tee apparatus 100 can be provided. Alternatively, if the conventional golf tee 370 is desired, then the golf tee apparatus 250 can be provided.

[0104] As shown in FIGS. 2-3, the holder 102 and the removable tee insert 150 can comprise the golf tee apparatus 100. Only one golf tee, i.e., the golf tee 170, the golf tee 180, or the golf tee 190 is selected for the golf tee positioning system 20. The removable tee insert 150 can be inserted into the cavity 106 until the proximal surface 154 fits within the proximal opening 110 of the holder, the upper mating surface 156 interfaces with the mating surface 115 of the holder 102, the mating shoulder 158 interfaces with the perimeter socket 112 of the proximal opening 110 of the holder, and the indexing surfaces 160 interface with the indexing elements 114 of the holder 102.

[0105] The holder 102 and removable tee insert 150 can be inserted within the receiver 30 from the distal side of the turf simulating pad 22. The distal contact surface 26 can interface with the mating surface 122 to retain the holder 102, and the receiver 30 can interface with the walls 124 to position the holder 102 relative to the turf simulating pad 22.

[0106] One of the golf tees 170, 180, or 190 can be selected based on the preference(s) or one or more requirements of the player. The desired length of shaft 174, 184, or 194 can be selected based on the preference or requirements of the player. The receptacle 166 of the removable tee insert 150 with the desired depth can be selected to suit the preferences or requirements of the player. The base 172, 182, or 192 of the golf tees can be inserted within the receptacle 166 so that the mating surface 169 interfaces with the base and the distal end 178, 188, or 198 contacts the distal surface 168 of the receptacle 166. As a result, the head 176, 186, or 196 will be positioned at a fixed height relative to the turf simulating pad 22.

[0107] The player can repeat the steps above and select a different length of shaft 174, 184, or 194 or a different receptacle 166 to adjust the height of the head 176, 186, or 196 above the proximal playing surface 24. The varied length of the shaft 174 of the tees 170 in conjunction with different depths of the distal surface 168 of each of the receptacles 166 provides for numerous possible combinations to define the overall height of the golf tee head 176, 186, or 196 in relation to the proximal playing surface 24. When the height is satisfactory, the golf ball can be set on the head 176, 186, or 196 and the tee shot can be executed.

[0108] The golf tee positioning system 20 can instead be configured for use with the conventional golf tee 370. For example, as shown in FIGS. 9-10, the holder 102 and the removable tee insert 300 can comprise the golf tee apparatus 250. The removable tee insert 300 can be inserted into the cavity 106 until the proximal surface 304 fits within the proximal opening 110 of the holder, the upper mating surface 306 interfaces with the mating surface 115 of the holder 102, the mating shoulder 308 interfaces with the perimeter socket 112 of the proximal opening 110 of the holder, and the indexing surfaces 310 interface with the indexing elements 114 of the holder 102.

[0109] The holder 102 and removable tee insert 300 can be inserted within the receiver 30 from the distal side of the turf simulating pad 22. The distal contact surface 26 can interface with the mating surface 122 to retain the holder 102, and the receiver 30 can interface with the walls 124 to position the holder 102 relative to the turf simulating pad.

[0110] The conventional golf tee 370 can be provided. The player can insert the conventional golf tee 370 into one of the receptacles 316. The mating surface 322 can interface with the shaft 374 of each receptacle 316. Friction between the mating surface 322 and the shaft 374 can retain the conventional golf tee 370 within the receptacle 316. The height of the conventional golf tee 370 can be controlled by the player by varying the depth of insertion of the shaft 374 into the receptacle 316. As a result, the head 376 will be positioned at a fixed height relative to the proximal playing surface 24.

[0111] The player can repeat the steps above to adjust the height of the head 376 above the turf simulating pad 22. When the height is satisfactory, the golf ball can be set on the head 376 and the tee shot can be executed.

[0112] If the preference of the player changes, for example, if golf tee 170, 180, or 190 is desired instead of the conventional golf tee 370, then the steps above can be completed in reverse order to exchange the removable tee insert 300 for removable tee insert 150. Similarly, if the conventional golf tee 370 is later desired instead of golf tee 170, 180, or 190, then the steps above can again be completed in reverse order to exchange the removable tee insert 150 for removable tee insert 300. If no golf tee is required, then the golf tee apparatus 100, 250 can be exchanged for the cover (not shown), and vice versa.

[0113] With respect to the above description then, it is to be realized that the optimum dimensional relationships for the parts of the invention include variations in size, materials, shape, form, function and manner of operation, assembly and use, are deemed readily apparent and obvious to one skilled in the art, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by the present invention.

[0114] Therefore, the foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention.

Examples

Embodiment Construction

[0055]The inventive concepts are described with reference to the attached figures, wherein like reference numerals represent like parts and assemblies throughout the several views. Several aspects of the inventive concepts are described below with reference to example applications for illustration. It should be understood that numerous specific details, relationships, and methods are set forth to provide a full understanding of the inventive concepts. One having ordinary skill in the relevant art, however, will readily recognize that the inventive concepts can be practiced without one or more of the specific details or with other methods. In other instances, well-known structures or operation are not shown in detail to avoid obscuring the inventive concepts.

[0056]A golf tee positioning system 20 may include a playing area, a golf tee apparatus 100, and a golf tee. FIG. 1 depicts an example of the golf tee positioning system 20 in which the playing area can be configured as a turf si...

BACKGROUND(a) Technical Field

[0001] The present disclosure relates to systems and methods for positioning a golf tee, more particularly, to a golf tee positioning system configured to receive a golf tee apparatus with a removable tee insert that allows a golf tee to be positioned at selectable fixed heights above a reference surface.(b) Description of the Related Art

[0002] A golf tee is used to hold a golf ball in a fixed position and at a fixed height in relation to a reference surface to assist with alignment with the arc traversed by the contact face of a golf club being swung by a player. The golf ball is loosely retained by an upper surface of the golf tee. To transfer the maximum amount of energy, golf tee shots require the golf club to be swung such that the contact face passes cleanly through a resting position of the golf ball.

[0003] Misalignment of the contact face and the golf ball will almost certainly result in an inefficient transfer of energy from the golf club to the golf ball. If the golf ball is positioned too high, the contact face may not fully engage the golf ball, thereby wasting swing energy. If the golf ball is positioned too low, a partial impact between the contact face and the ground surface is likely, and energy will be dissipated ineffectively. Inefficient energy transfer can cause a reduction in power, a misdirected trajectory of the golf ball, and general misfortune for the player. Variables, such as height of the player, length of the golf club, player form, and player preference mean that there cannot be a universal height to set a golf ball above the reference surface for proper alignment. Therefore, proper positioning of the golf ball requires the player to have the ability to adjust the height of the golf tee.

[0004] Conventional golf tees are configured to be inserted into natural turf. The player controls the height of the tee, and therefore the height of the golf ball, by varying insertion depth of the golf tee. The player simply inserts or withdraws the tee from the natural turf until the golf ball is aligned with the arc traced by the contact face during the swing.

[0005] Simulated (i.e., artificial or synthetic) turf is becoming increasingly common. In particular, simulated turf is prevalent at golf practice ranges and course tee boxes. Among other reasons, simulated turf can be easier to maintain, can be more durable, and potentially offers a more consistent player experience. Players are therefore encountering simulated turf more frequently.

[0006] Correctly positioning a golf ball for proper alignment with the club face of the golf club during a swing is a drawback associated with simulated turf. Conventional tees cannot easily be inserted into the substrate of simulated turf, as can be done with natural turf. Many players must acquiesce and use synthetic tees that are compatible with the synthetic turf. These synthetic tees can be difficult to install, cumbersome to swap, and often are only available in limited fixed height configurations. Because the synthetic tees cannot be depth-adjusted, players are forced to accept the alignment these fixed heights provide. In view of the variables associated with each player and the importance of aligning the contact face with the golf ball, such a circumstance is unacceptable for most players.

[0007] Further, the material properties of synthetic tees make them unappealing for most players. Synthetic tees are often made of a very resilient material because of the relatively high expense associated with replacement. Typically, resiliency is inversely proportional to stiffness. Therefore, the synthetic tees often can have an overly flexible quality, which makes them undesirable for most players. Conventional tees are typically made of wood. Alternatively, conventional tees can be made of a plastic. Some players prefer the traditional feeling of a wood tee. Other players prefer the experience of a plastic tee. In all cases though, the material is often homogenous.

[0008] A system that may be configured to position a golf tee at various fixed heights and compatible with simulated turf is therefore desirable. Additionally, a system that can be configured to accept conventional tees or composite tees with non-homogenous material properties is needed.

[0009] The present disclosure describes systems and methods related to the above.SUMMARY

[0010] In one aspect of the present disclosure, a golf tee apparatus includes a holder. The holder includes a holder body and a cavity contained within the holder body configured to receive and retain a removable tee insert. The removable tee insert is configured to be removably mounted within the cavity of the holder. The removable tee insert includes an insert body and a plurality of receptacles within the insert body. Each of the receptacles are configured to receive a golf tee, and each of the receptacles have a distal depth relative to a proximal surface of the removable tee insert.

[0011] In another aspect of the present disclosure, the holder further includes a flange configured to interface with a distal surface of a turf simulating pad.

[0012] In another aspect of the present disclosure, the holder is made from a thermoplastic elastomer material with a Shore A hardness value between 45 A and 70 A.

[0013] In another aspect of the present disclosure, the depth of each receptacle is configured to be different.

[0014] In another aspect of the present disclosure, the receptacles of the removable tee insert have a cylindrical shape.

[0015] In another aspect of the present disclosure, the removable tee insert is made from an elastomeric polyurethane resin material.

[0016] In another aspect of the present disclosure, the golf tee is configured for use with the removable tee insert. The golf tee incudes a base configured to be removably mounted within one of the receptacles of the removable tee insert, a head configured to retain a golf ball in a fixed position, and a shaft defining a height of the head relative to the base.

[0017] In another aspect of the present disclosure, the golf tee is made from an elastomer material or wood.

[0018] In another aspect of the present disclosure, the base of the golf tee is cylindrical.

[0019] In another aspect of the present disclosure, the base of the golf tee is spherical.

[0020] In another aspect of the present disclosure, each receptacle is configured to receive and retain a conventional golf tee, the conventional golf tee comprising a base configured to be removably mounted within one of the receptacles of the removable tee insert, a head configured to retain a golf ball in a fixed position, and a shaft defining a height of the head relative to the base.

[0021] In another aspect of the present disclosure, each receptacle is configured to retain a conventional golf tee at various depths relative to a proximal surface of the removable tee insert.

[0022] In another aspect of the present disclosure, each receptacle extends longitudinally through the removable tee insert.

[0023] In another aspect of the present disclosure, each receptacle of the removable tee insert includes at least one relief profile configured to apply proportional clamping pressure to the golf tee.

[0024] In another aspect of the present disclosure, each receptacle has a substantially circular cross-section, and the relief profile is provided as a plurality of tangential slots, diametrically opposed with respect to the receptible and extending longitudinally through the removable tee insert.

[0025] In another aspect of the present disclosure, the plurality of receptacles is open to a recessed distal area of the removable tee insert, the recessed distal area defining a cavity configured to contain broken pieces of the golf tee.

[0026] In another aspect of the present disclosure, a golf tee positioning system includes a golf tee apparatus. The golf tee apparatus includes a holder that includes a holder body and a cavity contained within the holder body and configured to receive and retain a removable tee insert. The removable tee insert is configured to be removably mounted within the cavity of the holder. The removable tee insert incudes an insert body and a plurality of receptacles within the insert body, each of the receptacles configured to receive a golf tee, and each of the receptacles have a distal depth relative to a proximal surface of the removable tee insert. The golf tee positioning system further includes the golf tee configured for use with the removable tee insert. The golf tee includes a base configured to be removably mounted within one of the receptacles of the removable tee insert, a head configured to retain a golf ball in a fixed position, and a shaft defining a height of the head relative to the base. The golf tee positioning system also includes a turf simulating pad.

[0027] In another aspect of the present disclosure, the turf simulating pad incudes a proximal playing surface configured to simulate natural turf, a distal contact surface configured to interface with a ground surface, and a receiver configured to receive and retain the golf tee apparatus.

[0028] In another aspect of the present disclosure, the receptacles of the removable tee insert have a cylindrical shape and the receptacles are configured to receive the golf tee with a cylindrical base.

[0029] In another aspect of the present disclosure, a method for positioning a golf ball includes providing a turf simulating pad. The turf simulating pad includes a proximal playing surface configured to simulate natural turf, a distal contact surface configured to interface with a ground surface, and a receiver configured to receive and retain a holder. The method for positioning a golf ball further includes providing a holder. The holder includes a holder body and a cavity contained within the holder body and configured to receive and retain a removable tee insert. The method for positioning a golf ball also includes providing a removable tee insert, the removable tee insert configured to be removably mounted within the cavity of the holder. The removable tee insert includes an insert body, and a plurality of receptacles within the insert body, each of the receptacles configured to receive a golf tee. The method for positioning a golf ball further includes installing the removable tee insert within the cavity of the holder, installing the holder within the receiver of the turf simulating pad, and installing the golf tee within one of the receptacles within the insert body.

[0030] In another aspect of the present disclosure, each of the receptacles is configured to have a different distal depth relative to a proximal surface of the removable tee insert.

[0031] In another aspect of the present disclosure, the method for positioning a golf ball further includes installing the golf tee within the receptacle having the different distal depth to define a first desired fixed height of a head of the golf tee above the proximal playing surface.

[0032] In another aspect of the present disclosure, the method for positioning a golf ball further includes changing the receptacle having the different distal depth to define a second desired fixed height of the head above the proximal playing surface.

[0033] In another aspect of the present disclosure, each receptacle of the removable tee insert includes at least one relief profile configured to apply proportional clamping pressure to a conventional golf tee.

[0034] In another aspect of the present disclosure, the method for positioning a golf ball further includes installing the conventional golf tee within one of the receptacles to define a fixed height of a head of the golf tee above the proximal playing surface.

[0035] In another aspect of the present disclosure, the method for positioning a golf ball further includes exchanging the removable tee insert.

[0036] In another aspect of the present disclosure, the method for positioning a golf ball further includes setting a golf ball on a head of the golf tee.

[0037] In another aspect of the present disclosure, a cover is configured to be positioned and retained within the receiver, the cover further configured to simulate natural turf.

[0038] In another aspect of the present disclosure, the method for positioning a golf ball further includes installing the cover within the receiver.

[0039] In another aspect of the present disclosure, the turf simulating pad comprises a plurality of covers disposed on opposite sides of a longitudinal centerline.

[0040] In another aspect of the present disclosure, the method for positioning a golf ball further includes selecting the receiver based on whether a player is right-handed or left-handed.BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The following drawings are illustrative of particular embodiments of the present disclosure and therefore do not limit the scope of the present disclosure. Embodiments of the present disclosure will hereinafter be described in conjunction with the appended drawings, wherein like numerals denote like elements.

[0042] FIG. 1 is a perspective view of an embodiment of a golf tee positioning system;

[0043] FIG. 2 shows a perspective view of an example golf tee apparatus of the golf tee positioning system of FIG. 1;

[0044] FIG. 3 is a cross-sectional view of the golf tee apparatus shown in FIG. 2, taken through the line III-III;

[0045] FIG. 4 is a perspective view of a holder device of the golf tee apparatus of FIGS. 2 and 9;

[0046] FIG. 5 is a cross-sectional view of the holder device shown in FIG. 4, taken through the line V-V;

[0047] FIG. 6 is a perspective view of an example removable tee insert device of the golf tee apparatus of FIG. 2;

[0048] FIG. 7 is a cross-sectional view of the removable tee insert device shown in FIG. 6, taken through the line VII-VII;

[0049] FIGS. 8A-8C are perspective views of example golf tee devices of the golf tee apparatus of FIG. 2;

[0050] FIG. 8D is a perspective view of an example golf tee device of the golf tee apparatus of FIG. 9;

[0051] FIG. 9 shows a perspective view of another example of a golf tee apparatus of the golf tee positioning system of FIG. 1;

[0052] FIG. 10 is a cross-sectional view of the golf tee apparatus shown in FIG. 9, taken through the line X-X;

[0053] FIG. 11 is a perspective view of an example removable tee insert of the golf tee apparatus of FIG. 9; and

[0054] FIG. 12 is a cross-sectional view of the removable tee insert device shown in FIG. 11, taken through the line XII-XII.DETAILED DESCRIPTION

[0055] The inventive concepts are described with reference to the attached figures, wherein like reference numerals represent like parts and assemblies throughout the several views. Several aspects of the inventive concepts are described below with reference to example applications for illustration. It should be understood that numerous specific details, relationships, and methods are set forth to provide a full understanding of the inventive concepts. One having ordinary skill in the relevant art, however, will readily recognize that the inventive concepts can be practiced without one or more of the specific details or with other methods. In other instances, well-known structures or operation are not shown in detail to avoid obscuring the inventive concepts.

[0056] A golf tee positioning system 20 may include a playing area, a golf tee apparatus 100, and a golf tee. FIG. 1 depicts an example of the golf tee positioning system 20 in which the playing area can be configured as a turf simulating pad 22. The turf simulating pad 22 can include a proximal playing surface 24, a distal contact surface 26, a core 28, and a receiver 30. A player (i.e., a golfer) is positioned on the proximal playing surface 24 while using a golf club to strike a golf ball. The proximal playing surface 24 simulates aspects of the varieties of natural grass and turf specifications for various areas of play found on a golf course. The core 28 can be designed to simulate the properties and specifications of various layers of natural supporting soil found on the golf course. The distal contact surface 26 interfaces with a ground surface and defines a lower portion of the turf simulation pad 22. As described in greater detail below, the distal contact surface 26 can further function to retain the golf tee apparatus 100. The receiver 30 is configured to receive the golf tee apparatus 100. As discussed below, the player uses the golf tee apparatus to position a golf ball and execute a tee shot. In the example shown in FIG. 1, the receiver 30 is provided as an opening extending vertically from the proximal playing surface 24 to the distal contact surface 26. The receiver 30 is further configured to substantially match the outer dimensions of the golf tee apparatus 100 to provide a snug fit. Additional applicable aspects of suitable turf simulating surfaces and devices are disclosed by the instant inventor in U.S. Pat. Nos. 6,383,094, 6,139,443 and 5,830,080, the entire contents of which are incorporated by reference herein.

[0057] As shown in FIG. 1, the turf simulating pad 22 can be a rectangular shape with one receiver 30 disposed at an offset distance from a longitudinal centerline, extending lengthwise in the plane of the proximal playing surface 24. In alternative embodiments, the shape of the turf simulating pad 22 can be any suitable shape. Preferably, the shape of the turf simulating pad 22 is a polygon, symmetric about at least one axis. In other alternative embodiments, the turf simulating pad 22 can be provided with a plurality of receivers 30. For example, two receivers 30 can disposed on opposite sides of a centerline extending longitudinally in the plane of the proximal playing surface 24. A golf tee apparatus can be disposed in either one or both of the receivers 30. Such an arrangement of receivers 30 allows a player to choose a stance orientation that is suitable. For example, a right-handed player may choose an opposite location of the receiver 30 and the golf tee apparatus 100 from a left-handed player.

[0058] The turf simulating pad 22 can be provided with a cover (not shown). The cover is configured to be inserted into the receiver 30 when the golf tee apparatus 100 is not installed. The cover can be sized to provide a snug fit within the receiver 30. The cover can have a substantially similar cross-sectional shape to the turf simulating pad 22. Preferably, the cover is made to substantially similar specifications as the turf simulating pad 22. The cover can therefore be used with the turf simulating pad 22 instead of the golf tee apparatus 100 to provide a uniform proximal playing surface 24 in a vicinity of an empty receiver 30. The cover is further useful when the tee shots are not required or when there is an empty receiver 30.

[0059] In alternative embodiments, the playing area can comprise natural turf instead of the turf simulating pad 22. In such embodiments, the receiver 30 can be provided within the ground surface. The depth of the receiver 30 must be sufficient to contain the golf tee apparatus 100 at a suitable depth.

[0060] Referring to FIGS. 2-7 and 8A-8C, the golf tee apparatus 100 includes a holder 102 and a removable tee insert 150. The golf tee apparatus may further include golf tees 170, 180, and190. Features of the removable tee insert 150 and the golf tees 170, 180, and 190 interact to permit a golf ball to be retained at various fixed heights above a reference surface, for example, the turf simulating pad 22. From a position above the golf tee apparatus 100, the player can selectively configure the height of the golf tee by interacting with the golf tee apparatus 100.

[0061] Referring to FIGS. 4 and 5, the holder 102 can include a holder body 104 that defines a cavity 106. The cavity 106 can be configured to receive and retain the removable tee insert 150. The holder body 104 can further include a proximal surface 108 with a proximal opening 110. The proximal surface 108 defines a height of the holder 102. Preferably, the height of the holder 102 does not exceed a height of the turf simulating pad 22, as measured from the distal contact surface 26 to the proximal playing surface 24. In alternative embodiments, the height of the holder 102 is configured to be recessed from the proximal playing surface 24. The proximal opening 110 is open to the cavity 106. The proximal opening 110 can include a perimeter socket 112 that is configured to receive and interface with the removable tee insert 150. A mating surface 115 can be included within the cavity 106 to interface with the removable tee insert 150. Indexing elements 114 can be disposed within the cavity 106 and configured to interface with the removable tee insert 150 to further assist with receiving and positioning the removable tee insert 150.

[0062] The proximal surface 108 of the holder 102 can include a canted section 116. The canted section 116 is oriented at an angle 118 with respect to a horizontal plane containing the proximal surface 108 (see FIG. 5). As shown in FIG. 5, for example, the angle 118 results in a declined orientation for the canted section 116. Further, as depicted in FIGS. 2-5, the canted section 116 is provided at a leading edge of the holder 102. The leading edge of the holder 102 is a first edge encountered by the golf club as it is swung by the player. The canted section 116 minimizes the likelihood of a blunt force impact with the leading edge of the holder 102 by providing a gradual change in elevation, e.g., a ramp.

[0063] The holder 102 is configured to mount within the receiver 30 of the turf simulating pad 22. The holder body 104 of the holder 102 can define walls 124. The walls 124 are configured to fit within the receiver 30 of the turf simulating pad 22. Preferably, the walls 124 interface snugly within the receiver 30. In the example shown, the walls 124 are substantially vertical. Preferably, the walls 124 are shaped to provide a snug fit within the receiver 30. In alternative embodiments the walls 124 can be other suitable shapes. Flanges 120 can be provided at the base of the holder. The flanges 120 can be offset from the walls 124. The flanges 120 can include a mating surface 122 configured to interface with the distal contact surface 126 of the turf simulating pad 22. The holder 102 can be inserted within the receiver 30 from the distal side of the turf simulating pad 22. The distal contact surface 26 can interface with the mating surface 122 to retain the holder 102, and the receiver 30 can interface with the walls 124 to position the holder 102. In the example shown, the flanges 120 are provided along longitudinal edges of the holder 102. In alternative embodiments, the flanges 120 can be provided along only a portion of the base of the holder 102. In other alternative embodiments, the flanges 120 can be provided along the perimeter of the base. In other alternative embodiments, the flanges 120 can be omitted.

[0064] As shown in FIGS. 4 and 5, the holder 102 can be of a generally rectangular shape. Preferably, the holder 102, is shaped to form a closely bounding shell, and is configured to provide protection to the removable tee insert 150. In alternative embodiments, the holder can be a polygon, symmetric about at least one axis.

[0065] The holder 102 can be made from a thermoplastic elastomer material. Preferably, the holder 102 is made from a styrene ethylene butylene styrene block copolymer (SEBS) material. Preferably, the holder 102 exhibits a Shore A hardness value between 45 A and 70 A, when measured by a durometer. In alternative embodiments, the holder 102 could be made from ferrous metal, nonferrous metal, polymer materials, resin, or a composite. The holder 102 can be formed by an injection molding process or the holder 102 can be printed using a 3D printer. In other alternative embodiments, the holder 102 can be fabricated.

[0066] Referring to FIGS. 6-7, the removable tee insert 150 can be configured to be removably mounted within the cavity 106 of the holder 102. The removable tee insert 150 can include an insert body 152. The insert body 152 can define a proximal surface 154, an upper mating surface 156, a mating shoulder 158, an indexing surface 160, a distal surface 162, and an end surface 164. The distance between the proximal surface 154 and the distal surface 162 defines the height of the removable tee insert 150. As shown in FIGS. 2 and 3, the height of the removable tee insert 150 preferably is less than the height of the holder 102. In alternative embodiments, the height of the removable tee insert 150 is the same as the height of the holder 102. In other alternative embodiments, the height of the removable tee insert 150 is greater than the height of the holder 102. The proximal surface 154 can protrude from the upper mating surface 156 to define the mating shoulder 158. The proximal surface 154 is configured to fit within the proximal opening 110 of the holder. The upper mating surface 156 is configured to interface with the mating surface 115 of the holder 102. The mating shoulder 158 can be configured to interface with the perimeter socket 112 of the proximal opening 110 of the holder. The indexing surfaces 160 can be configured to interface with the indexing elements 114 of the holder 102. The end surfaces 164 define the extents of the removable tee insert 150.

[0067] Referring to FIG. 3, the removable tee insert 150 is configured to be inserted within the cavity 106 of the holder 102. The removable tee insert 150 is inserted from a distal end of the holder until the various surfaces, as described above, interface with each other. In particular, friction between the various interface surfaces retains the removable tee insert 150 within the holder 102. The mating shoulder 158 and the indexing surfaces 160 are configured to position the removable tee insert within the holder 102.

[0068] Referring to FIGS. 2-3 and 6-7, the removable tee insert 150 can include a plurality of receptacles 166 within the insert body 152. Each of the receptacles 166 can have a distal surface 168. The distance between the proximal surface 154 of the insert body 152 and the distal surface 168 defines a depth of each receptacle 166. As provided herein, each of the receptacles 166 can have a different depth by changing the depth of the distal surface 168. In alternative embodiments, the depth can be the same for each of the receptacles 166.

[0069] Each of the receptacles can have a mating surface 169. As shown, the receptacles have a substantially cylindrical shape defined by a uniform circular cross section. Preferably, the receptacles have a uniform cross section. The receptacles can further be symmetric about at least one axis. In alternate embodiments, the receptacles can have other suitable shapes, for example, those with a polygonal cross section or those with an elliptical cross section. As shown, each of the receptacles 166 has the same shape. In alternate embodiments, each of the receptacles can have different shapes, for example, to correspond to the different depths of the receptacles 166.

[0070] The removable tee insert 150 can be made of an elastomeric resin material. In alternative embodiments, the removable tee insert 150 can be made of an elastomeric polyurethane resin material suitable for rebound applications. In alternative embodiments, the removable tee insert 150 can be made from ferrous metal, nonferrous metal, polymer materials, resin, or a composite. The removable tee insert 150 can be made using a 3D printing process. In alternative embodiments, the removable tee insert 150 can be formed by an injection molding process. In other alternative embodiments, the removable tee insert 150 can be fabricated.

[0071] Referring to FIGS. 2-3 and 8A-8C, the golf tees 170, 180, and 190 can be configured for use with the removable tee insert 150. Specifically, the golf tees 170, 180, and 190 are configured to be removably mounted within one of the receptacles 166.

[0072] The golf tee 170 can include a base 172, a shaft 174, a head 176, and a distal end 178. The base 172 is configured to have a shape that is compatible with the cross-sectional shape of the receptacle 166 of the removable tee insert 150. The cross-sectional shape of the base 172 can substantially match the cross-sectional shape of the receptacle 166. For example, as shown in FIG. 8A, the base 172 is configured with a circular cross section and interfaces with the mating surface 169 of each receptacle 166. The mating surface 169 and the base 172 align the tee 170 within the receptacle 166. Friction between the surface interfaces, as previously described, retains the golf tee 170 within the receptacle 166.

[0073] The head 176 of the tee 170 is configured to retain the golf ball in a fixed, but releasable position. As shown, for example, the head 176 is configured as a dished surface with a substantially spherical concave shape. The head 176 is configured to interface with a convex surface of the golf ball. Weak friction and gravity can retain the golf ball on the head 176 but still permit the golf ball to release when struck with the golf club.

[0074] The shaft 174 can define the height of the head 176 relative to the base 172. The distance between a distal end 178 and the head 176 defines the height of the golf tee 170. The length of the shaft 174 can be varied to make golf tees 170 of different heights. The dimensions of the base 172 and the head 176 can remain constant while the length of the shaft 174 is varied to change the height of the golf tee 170. The varied length of the shaft 174 of the tees 170 in conjunction with different depths of the distal surface 168 of each of the receptacles 166 provides for numerous possible combinations to define the overall height of the head 176 of the golf tee 170, and therefore the golf ball, relative to a reference surface, such as the simulated turf pad 22.

[0075] The golf tee 170 can be made from an elastomeric resin. The golf tee 170 can further be made of a composite having at least two hardness values on a Shore A scale, when measured by a durometer. For example, the base 172 can be made rigid to provide structural stability, and the shaft 174 and head 176 can be made relatively flexible to provide resilience, or toughness. In alternative embodiments, the golf tee 170 can be made with uniform material properties. In other alternative embodiments, the golf tee 170 can be made of a polymer, a resin, a thermoplastic, or a composite. In other alternative embodiments, the golf tee 170 can be made of a natural material. For example, the golf tee 170 can be made of wood.

[0076] The golf tee 180 can include a base 182, a shaft 184, a head 186, and a distal end 188. The base 182 is configured to be compatible with the cross-sectional shape of the receptacle 166 of the removable tee insert 150. The cross-sectional shape of the base 182 can substantially match the cross-sectional shape of the receptacle 166. For example, as shown in FIG. 8B, the base 182 is configured with a circular cross section and interfaces with the mating surface 169 of each receptacle 166. The mating surface 169 and the base 182 align the tee 180 within the receptacle 166. Friction between the surface interfaces, as previously described, retains the golf tee 180 within the receptacle 166.

[0077] The head 186 of the tee 180 can be configured to retain the golf ball in a fixed, but releasable position. As shown, for example, the head 186 is configured as a dished surface with a substantially spherical concave shape. The head 186 can be configured to interface with a convex surface of the golf ball. Weak friction and gravity can retain the golf ball on the head 186 but still permit the golf ball to release when struck with the golf club.

[0078] The shaft 184 can define the height of the head 186 relative to the base 182. The distance between a distal end 188 and the head 186 defines the height of the golf tee 180. The length of the shaft 184 can be varied to make golf tees 180 of different heights. The dimensions of the base 182 and the head 186 can remain constant while the length of the shaft 184 is varied to change the height of the golf tee 180. The varied length of the shaft 184 of the tees 180 in conjunction with different depths of the distal surface 168 of each of the receptacles 166 provides for numerous possible combinations to define the overall height of the head 186 of the golf tee 180, and therefore the golf ball, relative to a reference surface, such as the simulated turf pad 22.

[0079] The golf tee 180 can be made of a natural material. For example, the golf tee 180 can be made of wood. Wood tees provide a natural and conventional feel for some players, which is desirable. The golf tee 180 can further be made of a composite having at least two hardness values on a Shore A scale, when measured by a durometer. For example, the base 182 can be made rigid to provide structural stability, while the shaft 184 and head 186 can be made relatively flexible to provide resilience, or toughness. In alternative embodiments, the golf tee 180 can be made with uniform material properties. In other alternative embodiments, the golf tee 180 can be made of a polymer, a resin, a thermoplastic, or a composite.

[0080] The golf tee 190 can include a base 192, a shaft 194, a head 196, and a distal end 198. The base 192 is configured to be compatible with the cross-sectional shape of the receptacle 166 of the removable tee insert 150. The cross-sectional shape of the base 192 can substantially match the cross-sectional shape of the receptacle 166. For example, as shown in FIG. 8C, the base 192 is configured with a spherical cross section and interfaces with the mating surface 169 of each receptacle 166. The mating surface 169 and the base 192 align the golf tee 190 within the receptacle 166. Friction between the surface interfaces, as previously described, retains the golf tee 190 within the receptacle 166. The spherical golf tee base 192 permits some relative rotation of the golf tee 190 within the receptacle 166. The cross section of spherical golf tee base 192 results in less interface contact with the mating surface 169, and therefore less friction. The relative rotational motion permitted can absorb some energy from the golf swing and reduce the chances of breaking the golf tee 190 if the swing is misaligned.

[0081] The head 196 of the golf tee190 can be configured to retain the golf ball in a fixed, but releasable position. As shown, for example, the head 196 is configured as a dished surface with a substantially spherical concave shape. The head 196 can be configured to interface with a convex surface of the golf ball. Weak friction and gravity can retain the golf ball on the head 196 but still permit the golf ball to release when struck with the golf club.

[0082] The shaft 194 can define the height of the head 196 relative to the base 192. The distance between a distal end 198 and the head 196 defines the height of the golf tee 190. The length of the shaft 194 can be varied to make golf tees 190 of different heights. The dimensions of the base 192 and the head 196 can remain constant while the length of the shaft 194 is varied to change the height of the golf tee 190. The varied length of the shaft 194 of the golf tees 190 in conjunction with different depths of the distal surface 168 of each of the receptacles 166 provides for numerous possible combinations to define the overall height of the head 196 of the golf tee 190, and therefore the golf ball, relative to a reference surface, such as the simulated turf pad 22.

[0083] The golf tee 190 can be made of a natural material. For example, the golf tee 190 can be made of wood. Wood tees provide a natural and conventional feel for some players, which is desirable. The golf tee 190 can further be made of a composite having at least two hardness values on a Shore A scale, when measured by a durometer. For example, the base 192 can be made rigid to provide structural stability, and the shaft 194 and head 196 can be made relatively flexible to provide resilience, or toughness. In alternative embodiments, the golf tee 190 can be made with uniform material properties. In alternative embodiments, the golf tee 190 can be made of a polymer, a resin, a thermoplastic, or a composite.

[0084] FIGS. 8D and 9-12 depict another example of a golf tee apparatus 250. The golf tee apparatus is configured for use in the golf tee positioning system 20 discussed above. Many features and aspects of the golf tee apparatus 250 are similar to the features and aspects discussed above in relation to the golf tee apparatus 100. The golf tee apparatus 250 differs from the golf tee apparatus 100, discussed above, because the golf tee apparatus 250 is configured to accept a conventional golf tee 370.

[0085] The golf tee apparatus 250 includes the holder 102 and a removable tee insert 300. The golf tee apparatus 250 may further include the conventional golf tee 370. Features of the removable tee insert 300 and the conventional golf tee 370 interact to permit a golf ball to be retained at various fixed heights above a reference surface, for example, the turf simulating pad 22. From a position above the golf tee apparatus 250, the player can selectively configure the height of the golf tee by interacting with the golf tee apparatus 250.

[0086] The holder 102 is substantially identical to the holder 102 discussed above in relation to the removable tee insert 150, and as shown in FIGS. 4 and 5. As such, the holder 102 can include a holder body 104 that defines a cavity 106. The cavity 106 can be configured to receive and retain the removable tee insert 300. The holder body 104 can further include a proximal surface 108 with a proximal opening 110. The proximal surface 108 defines a height of the holder 102. Preferably, the height of the holder 102 does not exceed a height of the turf simulating pad 22, as measured from the distal contact surface 26 to the proximal playing surface 24. In alternate embodiments, the height of the holder 102 is configured to be recessed from the proximal playing surface 24. The proximal opening 110 is open to the cavity 106. The proximal opening 110 can include a perimeter socket 112 that is configured to receive and interface with the removable tee insert 300. A mating surface 115 can be included within the cavity 106 to interface with the removable tee insert 300. Indexing elements 114 can be disposed within the cavity 106 and configured to interface with the removable tee insert 300 to further assist with receiving and positioning the removable tee insert 300.

[0087] The proximal surface 108 of the holder 102 can include a canted section 116. The canted section 116 is oriented at an angle 118 with respect to a horizontal plane containing the proximal surface 108 (see FIG. 5). As shown, for example, the angle 118 results in a declined orientation for the canted section 116. Further, as depicted in FIGS. 2-5, the canted section 116 is provided at a leading edge of the holder 102. The leading edge of the holder 102 is a first edge encountered by the golf club as it is swung by the player. The canted section 116 minimizes the likelihood of a blunt force impact with the leading edge of the holder by providing a gradual change in elevation, e.g., a ramp.

[0088] The holder 102 is configured to mount within the receiver 30 of the turf simulating pad 22. The holder body 104 of the holder 102 can define walls 124. The walls 124 are configured to fit within the receiver 30 of the turf simulating pas 22. Preferably, the walls 124 interface snugly within the receiver 30. In the example shown, the walls 124 are substantially vertical. Preferably, the walls 124 are shaped to provide a snug fit within the receiver 30. In alternative embodiments the walls 124 can be other suitable shapes. Flanges 120 can be provided at the base of the holder 102. The flanges 120 can be offset from the walls 124. The flanges 120 can include a mating surface 122 configured to interface with the distal contact surface 126 of the turf simulating pad 22. The holder 102 can be inserted within the receiver 10 from the distal side of the turf simulating pad 22. The distal contact surface 26 can interface with the mating surface 122 to retain the holder 102 and the receiver 30 can interface with the walls 124 to position the holder 102. In the example shown, the flanges 120 are provided along longitudinal edges of the holder 102. In alternative embodiments, the flanges 120 can be provided along only a portion of the base of the holder 102. In other alternative embodiments, the flanges 120 can be provided along the perimeter of the base. In other alternative embodiments, the flanges 120 are omitted.

[0089] As shown in FIGS. 4 and 5, the holder 102 can be of a generally rectangular shape. Preferably, the holder 102, is shaped to form a closely bounding shell configured to provide protection to the removable tee insert 300. In alternative embodiments, the holder 102 can be a polygon, symmetric about at least one axis.

[0090] The holder 102 can be made from a thermoplastic elastomer material. Preferably, the holder 102 is made from a styrene ethylene butylene styrene block copolymer (SEBS) material. Preferably, the holder 102 exhibits a Shore A hardness value between 45 A and 70 A, when measured by a durometer. In alternative embodiments, the holder 102 could be made from ferrous metal, nonferrous metal, polymer materials, resin, or a composite. The holder 102 can be formed by an injection molding process. In alternative embodiments, the holder 102 can be printed using a 3D printer. In other alternative embodiments, the holder 102 can be fabricated.

[0091] Referring to FIGS. 11-12, the removable tee insert 300 can be configured to be removably mounted within the cavity 106 of the holder 102. The removable tee insert 300 can include an insert body 302. The insert body 302 can define a proximal surface 304, an upper mating surface 306, a mating shoulder 308, an indexing surface 310, a distal surface 312, and an end surface 314. The distance between the proximal surface 304 and the distal surface 312 defines the height of the removable tee insert 300.

[0092] As shown in FIGS. 9 and 10, preferably the height of the removable tee insert 300 is less than the height of the holder 102. In alternative embodiments, the height the of the removable tee insert 300 is the same as the height of the holder 102. In other alternative embodiments, the height of the removable tee insert 300 is greater than the height of the holder 102. The proximal surface 304 can protrude from the upper mating surface 306 to define the mating shoulder 158. The proximal surface 304 is configured to fit within the proximal opening 110 of the holder 102. The upper mating surface306 is configured to interface with the mating surface 115 of the holder 102. The mating shoulder 308 can be configured to interface with the perimeter socket 112 of the proximal opening 110 of the holder 102. The indexing surfaces 310 can be configured to interface with the indexing elements 114 of the holder 102. The end surfaces 314 define the extents of the removable tee insert 300.

[0093] Referring to FIG. 10, the removable tee insert 300 is configured to be inserted within the cavity 106 of the holder 102. The removable tee insert 300 is inserted from a distal end of the holder 102 until the various surfaces, as described above, interface with each other. Friction between the various interface surfaces, as described above, retains the removable tee insert 300 within the holder 102. The mating shoulder 308 and the indexing surfaces 310 are configured to position the removable tee insert within the holder 102.

[0094] Referring to FIGS. 9-12, the removable tee insert 300 can include a plurality of receptacles 316 within the insert body 302. The insert body 302 can include an insert cavity 318. The insert cavity 318 extends longitudinally from the distal surface 312 to an intermediate surface 320. Each of the receptacles 316 extends longitudinally from the proximal surface 304 to the intermediate surface 320. The plurality of receptacles 316 are therefore open to the insert cavity 318. As shown, the receptacles 316 have a substantially cylindrical shape defined by a uniform circular cross section. Preferably, the receptacles have a uniform cross section. The receptacles 316 can further be symmetric about at least one axis. In alternate embodiments, the receptacles can have other suitable shapes.

[0095] Each of the receptacles 316 can have a mating surface 322. The mating surface 322 is configured to interface with the conventional golf tee 370. The mating surface 322 is further configured to retain the conventional golf tee 370 within the receptacle 316. For example, friction at an interface between the conventional golf tee 370 and the mating surface 322 of the receptacle 316 can retain the conventional golf tee 370 within the receptacle 316.

[0096] Each receptacle 316 can further include one or more relief profiles 324. As shown in FIGS. 9-12, for example, the relief profiles 324 can be provided as a plurality of slots that are tangential to each of the receptacles 316. The relief profiles 324 can extend from the proximal surface 304 to the intermediate surface 320. As shown, for example, two diametrically opposed relief profiles 324 are provided for each receptacle 316. The relief profiles 324 relieve local stress concentrations that can develop when inserting the conventional golf tee 370 into a receptacle 316. The local stress concentrations can develop due to an interference fit between the conventional golf tee 370 and the receptacle 316. The stress concentrations are relieved through a controlled material deformation in the vicinity of the relief profiles 324 upon insertion of the conventional golf tee 370. Relieving the stress concentrations is desirable to mitigate the possibility of damage to the receptacle 316. Further, relieving stress concentrations can assist in applying uniform and proportional clamping pressure at the interface between the receptacle 316 and the conventional golf tee 370. It is important to consistently maintain enough clamping pressure to dispose the conventional golf tee 370 in a substantially vertical orientation. Too much clamping pressure, however, can increase the probability of breaking the conventional golf tee 370 during a golfer's tee shot. Because the relief profiles 324 result in the controlled material deformation, the clamping pressure can be regulated and further self-adjusts to varying degrees of the interference fit. Variation of the conventional golf tee 370 dimensions, environmental conditions (i.e., temperature, humidity, etc.) and wear (e.g., due to fatigue loading) on the removable tee insert 300 can therefore be successfully accommodated. In alternative embodiments, the relief profiles 324 can be other suitable shapes.

[0097] The removable tee insert 300 can be made of an elastomeric resin material. In alternative embodiments, the removable tee insert 300 can be made of an elastomeric polyurethane resin material suitable for rebound applications. In other alternative embodiments, the removable tee insert 300 can be made from ferrous metal, nonferrous metal, polymer materials, resin, or a composite. The removable tee insert 300 can be made using a 3D printing process. In alternative embodiments, the removable tee insert 300 can be formed by an injection molding process. In other alternative embodiments, the removable tee insert 300 can be fabricated.

[0098] Referring to FIGS. 9-10 and 8D, the conventional golf tees 370 can be compatible for use with the removable tee insert 300. Specifically, the receptacles 316 can be configured to allow conventional golf tees 370 to be removably mounted. Conventional golf tees 370 can golf tees that are commercially available and configured for use in natural turf of simulated turf.

[0099] The conventional golf tee 370 can include a base 372, a shaft 374, a head 376, and a distal end 378. The base 372 can be a conventional spike configured for use with natural turf. The head 376 can be configured to retain the golf ball in a fixed, but releasable position. As shown, for example, the head 376 is configured as a dished surface with a substantially spherical concave shape. The head 376 can be configured to interface with a convex surface of the golf ball. Weak friction and gravity can retain the golf ball on the head 376 but still permit the golf ball to release when struck with the golf club.

[0100] The shaft 374 can define the height of the head 376 relative to the base 172. The distance between a distal end 378 and the head 376 defines the height of the conventional golf tee 370. The cross-sectional shape of the shaft 374 can substantially match the cross-sectional shape of the receptacle 316. For example, as shown in FIG. 8D, the shaft 374 is configured with a circular cross section that interfaces with the mating surface 322 of each receptacle 316. The mating surface 322 and the shaft 374 align the conventional golf tee 370 within the receptacle 316. Friction between the surface interfaces, as previously described, retains the conventional golf tee 370 within the receptacle 316. The height of the conventional golf tee 370, and therefore the golf ball, relative to a reference surface, such as the simulated turf pad 22, can be controlled by the player. Because friction is the mechanism retaining the conventional golf tee 370 within the receptacle 316, the player can control the height of the head 376 relative to the turn simulating pad 22 by varying the depth of insertion. The receptacle is open to the insert cavity 318, thus permitting insertion of the conventional golf tee 370 past the intermediate surface 320.

[0101] The insert cavity 318 can collect broken pieces of the conventional golf tee 370. If the shaft 374 of a conventional golf tee 370 is broken and remains within the receptacle 316, a second conventional golf tee 370 (or similar object) can be inserted from the proximal surface 304 and into the receptacle 316 to force the broken portion out of the receptacle 316 and into the insert cavity 318. Broken portions of the conventional golf tee 370 can be periodically collected from the insert cavity 318.

[0102] The conventional golf tee 370 can, for example, be made of wood. In alternative embodiments, the conventional golf tee 370 can be made can be made of a polymer, a resin, a thermoplastic, or a composite. In other alternative embodiments, the conventional golf tee 370 can be made of a natural material. In other alternative embodiments, the conventional golf tee 370 can be made of any suitable material.

[0103] The golf tee positioning system 20 can be used to position a golf ball at a defined height above a reference surface, such as the turf simulating pad 22. To do so, for example, the turf simulating pad 22 can be provided. A golf tee apparatus, for example, the golf tee apparatus 100, 250, can be provided depending on the type of golf tee desired by the player. For example, the player can select from either golf tees 170, 180, or 190 or the conventional golf tee 370. If the golf tees 170, 180, or 190 is desired, then the golf tee apparatus 100 can be provided. Alternatively, if the conventional golf tee 370 is desired, then the golf tee apparatus 250 can be provided.

[0104] As shown in FIGS. 2-3, the holder 102 and the removable tee insert 150 can comprise the golf tee apparatus 100. Only one golf tee, i.e., the golf tee 170, the golf tee 180, or the golf tee 190 is selected for the golf tee positioning system 20. The removable tee insert 150 can be inserted into the cavity 106 until the proximal surface 154 fits within the proximal opening 110 of the holder, the upper mating surface 156 interfaces with the mating surface 115 of the holder 102, the mating shoulder 158 interfaces with the perimeter socket 112 of the proximal opening 110 of the holder, and the indexing surfaces 160 interface with the indexing elements 114 of the holder 102.

[0105] The holder 102 and removable tee insert 150 can be inserted within the receiver 30 from the distal side of the turf simulating pad 22. The distal contact surface 26 can interface with the mating surface 122 to retain the holder 102, and the receiver 30 can interface with the walls 124 to position the holder 102 relative to the turf simulating pad 22.

[0106] One of the golf tees 170, 180, or 190 can be selected based on the preference(s) or one or more requirements of the player. The desired length of shaft 174, 184, or 194 can be selected based on the preference or requirements of the player. The receptacle 166 of the removable tee insert 150 with the desired depth can be selected to suit the preferences or requirements of the player. The base 172, 182, or 192 of the golf tees can be inserted within the receptacle 166 so that the mating surface 169 interfaces with the base and the distal end 178, 188, or 198 contacts the distal surface 168 of the receptacle 166. As a result, the head 176, 186, or 196 will be positioned at a fixed height relative to the turf simulating pad 22.

[0107] The player can repeat the steps above and select a different length of shaft 174, 184, or 194 or a different receptacle 166 to adjust the height of the head 176, 186, or 196 above the proximal playing surface 24. The varied length of the shaft 174 of the tees 170 in conjunction with different depths of the distal surface 168 of each of the receptacles 166 provides for numerous possible combinations to define the overall height of the golf tee head 176, 186, or 196 in relation to the proximal playing surface 24. When the height is satisfactory, the golf ball can be set on the head 176, 186, or 196 and the tee shot can be executed.

[0108] The golf tee positioning system 20 can instead be configured for use with the conventional golf tee 370. For example, as shown in FIGS. 9-10, the holder 102 and the removable tee insert 300 can comprise the golf tee apparatus 250. The removable tee insert 300 can be inserted into the cavity 106 until the proximal surface 304 fits within the proximal opening 110 of the holder, the upper mating surface 306 interfaces with the mating surface 115 of the holder 102, the mating shoulder 308 interfaces with the perimeter socket 112 of the proximal opening 110 of the holder, and the indexing surfaces 310 interface with the indexing elements 114 of the holder 102.

[0109] The holder 102 and removable tee insert 300 can be inserted within the receiver 30 from the distal side of the turf simulating pad 22. The distal contact surface 26 can interface with the mating surface 122 to retain the holder 102, and the receiver 30 can interface with the walls 124 to position the holder 102 relative to the turf simulating pad.

[0110] The conventional golf tee 370 can be provided. The player can insert the conventional golf tee 370 into one of the receptacles 316. The mating surface 322 can interface with the shaft 374 of each receptacle 316. Friction between the mating surface 322 and the shaft 374 can retain the conventional golf tee 370 within the receptacle 316. The height of the conventional golf tee 370 can be controlled by the player by varying the depth of insertion of the shaft 374 into the receptacle 316. As a result, the head 376 will be positioned at a fixed height relative to the proximal playing surface 24.

[0111] The player can repeat the steps above to adjust the height of the head 376 above the turf simulating pad 22. When the height is satisfactory, the golf ball can be set on the head 376 and the tee shot can be executed.

[0112] If the preference of the player changes, for example, if golf tee 170, 180, or 190 is desired instead of the conventional golf tee 370, then the steps above can be completed in reverse order to exchange the removable tee insert 300 for removable tee insert 150. Similarly, if the conventional golf tee 370 is later desired instead of golf tee 170, 180, or 190, then the steps above can again be completed in reverse order to exchange the removable tee insert 150 for removable tee insert 300. If no golf tee is required, then the golf tee apparatus 100, 250 can be exchanged for the cover (not shown), and vice versa.

[0113] With respect to the above description then, it is to be realized that the optimum dimensional relationships for the parts of the invention include variations in size, materials, shape, form, function and manner of operation, assembly and use, are deemed readily apparent and obvious to one skilled in the art, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by the present invention.

[0114] Therefore, the foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention.

Examples

Embodiment Construction

[0055]The inventive concepts are described with reference to the attached figures, wherein like reference numerals represent like parts and assemblies throughout the several views. Several aspects of the inventive concepts are described below with reference to example applications for illustration. It should be understood that numerous specific details, relationships, and methods are set forth to provide a full understanding of the inventive concepts. One having ordinary skill in the relevant art, however, will readily recognize that the inventive concepts can be practiced without one or more of the specific details or with other methods. In other instances, well-known structures or operation are not shown in detail to avoid obscuring the inventive concepts.

[0056]A golf tee positioning system 20 may include a playing area, a golf tee apparatus 100, and a golf tee. FIG. 1 depicts an example of the golf tee positioning system 20 in which the playing area can be configured as a turf si...

Claims

1. A golf tee apparatus comprising:a holder that includes a holder body and a cavity contained within the holder body and configured to receive and retain a removable tee insert; andthe removable tee insert configured to be removably mounted within the cavity of the holder, the removable tee insert comprising:an insert body; anda plurality of receptacles within the insert body, each of the receptacles configured to receive a golf tee, and each of the receptacles having a distal depth relative to a proximal surface of the removable tee insert.

2. The golf tee apparatus of claim 1, wherein the holder further comprises a flange configured to interface with a distal surface of a turf simulating pad.

3. The golf tee apparatus of claim 1, wherein the holder is made from a thermoplastic elastomer material with a Shore A hardness value between 45 A and 70 A.

4. The golf tee apparatus of claim 1, wherein the depth of each receptacle is configured to be different.

5. The golf tee apparatus of claim 1, wherein the receptacles of the removable tee insert have a cylindrical shape.

6. The golf tee apparatus of claim 1, wherein the removable tee insert is made from an elastomeric polyurethane resin material.

7. The golf tee apparatus of claim 1, further comprising: the golf tee configured for use with the removable tee insert, the golf tee comprising a base configured to be removably mounted within one of the receptacles of the removable tee insert, a head configured to retain a golf ball in a fixed position, and a shaft defining a height of the head relative to the base.

8. The golf tee apparatus of claim 7, wherein the golf tee is made from an elastomer material or wood.

9. The golf tee apparatus of claim 7, wherein the base of the golf tee is cylindrical.

10. The golf tee apparatus of claim 7, wherein the base of the golf tee is spherical.

11. The golf tee apparatus of claim 1, wherein each receptacle is configured to receive and retain a conventional golf tee, the conventional golf tee comprising a base configured to be removably mounted within one of the receptacles of the removable tee insert, a head configured to retain a golf ball in a fixed position, and a shaft defining a height of the head relative to the base.

12. The golf tee apparatus of claim 1, wherein each receptacle is configured to retain a conventional golf tee at various depths relative to a proximal surface of the removable tee insert.

13. The golf tee apparatus of claim 1, wherein each receptacle extends longitudinally through the removable tee insert.

14. The golf tee apparatus of claim 13, wherein each receptacle of the removable tee insert includes at least one relief profile configured to apply proportional clamping pressure to the golf tee.

15. The golf tee apparatus of claim 14, wherein each receptacle has a substantially circular cross-section, and the relief profile is provided as a plurality of tangential slots, diametrically opposed with respect to the receptacle and extending longitudinally through the removable tee insert.

16. The golf tee apparatus of claim 1, wherein the plurality of receptacles is open to a recessed distal area of the removable tee insert, the recessed distal area defining a cavity configured to contain broken pieces of the golf tee.

17. A golf tee positioning system, comprising:a golf tee apparatus comprising:a holder that includes a holder body and a cavity contained within the holder body and configured to receive and retain a removable tee insert;the removable tee insert configured to be removably mounted within the cavity of the holder, the removable tee insert comprising:an insert body; anda plurality of receptacles within the insert body, each of the receptacles configured to receive a golf tee, and each of the receptacles having a distal depth relative to a proximal surface of the removable tee insert;the golf tee configured for use with the removable tee insert, the golf tee comprising a base configured to be removably mounted within one of the receptacles of the removable tee insert, a head configured to retain a golf ball in a fixed position, and a shaft defining a height of the head relative to the base; anda turf simulating pad.

18. The golf tee positioning system of claim 17, wherein the turf simulating pad comprises:a proximal playing surface configured to simulate natural turf;a distal contact surface configured to interface with a ground surface; anda receiver configured to receive and retain the golf tee apparatus.

19. The golf tee positioning system of claim 17, wherein:the receptacles of the removable tee insert have a cylindrical shape; andthe receptacles are configured to receive the golf tee with a cylindrical base.

20. A method for positioning a golf ball, comprising:providing a turf simulating pad, including:a proximal playing surface configured to simulate natural turf,a distal contact surface configured to interface with a ground surface, anda receiver configured to receive and retain a holder;providing a holder, the holder including a holder body and a cavity contained within the holder body and configured to receive and retain a removable tee insert;providing a removable tee insert, the removable tee insert configured to be removably mounted within the cavity of the holder, the removable tee insert comprising:an insert body; anda plurality of receptacles within the insert body, each of the receptacles configured to receive a golf tee;installing the removable tee insert within the cavity of the holder;installing the holder within the receiver of the turf simulating pad; andinstalling the golf tee within one of the receptacles within the insert body.

21. The method of claim 20, wherein each of the receptacles is configured to have a different distal depth relative to a proximal surface of the removable tee insert.

22. The method of claim 21, further comprising installing the golf tee within the receptacle having the different distal depth to define a first desired fixed height of a head of the golf tee above the proximal playing surface.

23. The method of claim 22, further comprising changing the receptacle having the different distal depth to define a second desired fixed height of the head above the proximal playing surface.

24. The method of claim 20, wherein each receptacle of the removable tee insert includes at least one relief profile configured to apply proportional clamping pressure to a conventional golf tee.

25. The method of claim 24, further comprising installing the conventional golf tee within one of the receptacles to define a fixed height of a head of the golf tee above the proximal playing surface.

26. The method of claim 20, further comprising exchanging the removable tee insert.

27. The method of claim 20, further comprising setting a golf ball on a head of the golf tee.

28. The method of claim 20, wherein a cover is configured to be positioned and retained within the receiver, the cover further configured to simulate natural turf.

29. The method of claim 28, further comprising installing the cover within the receiver.

30. The method of claim 20, wherein the turf simulating pad comprises a plurality of covers disposed on opposite sides of a longitudinal centerline.

31. The method of claim 20, further comprising selecting the receiver based on whether a player is right-handed or left-handed.

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