WO2004019718A1 - Indexable shoe cleat with improved traction - Google Patents
Indexable shoe cleat with improved traction Download PDFInfo
- Publication number
- WO2004019718A1 WO2004019718A1 PCT/US2003/023256 US0323256W WO2004019718A1 WO 2004019718 A1 WO2004019718 A1 WO 2004019718A1 US 0323256 W US0323256 W US 0323256W WO 2004019718 A1 WO2004019718 A1 WO 2004019718A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shoe
- cleat
- hub
- dynamic
- traction
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
- A43C15/00—Non-skid devices or attachments
- A43C15/16—Studs or cleats for football or like boots
- A43C15/162—Studs or cleats for football or like boots characterised by the shape
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
- A43B5/001—Golf shoes
Definitions
- the present invention pertains to cleats for use with shoes worn on turf and other surfaces.
- the present invention pertains to a golf cleat that provides traction on various types of surfaces and for specific purposes.
- the need for providing improved traction elements for the soles of shoes on turf surfaces is well known in the art, particularly in the field of sports such as football, baseball, soccer and golf.
- the need for providing improved traction elements must be considered in combination with limiting the wear and tear on the playing turf that can be caused by the traction elements.
- McMullin An example of a removable plastic cleat having desirable traction characteristics is described and illustrated in U.S. Patent No. 6,167,641 (McMullin), the disclosure of which is incorporated herein by reference in its entirety.
- McMullin patent there is disclosed a removable cleat having a hub with an upper surface facing the shoe sole and a bottom surface facing away from the sole.
- a hub attachment member extends from the upper surface for attaching the hub to one of plural sole-mounted attachment means.
- Traction elements extend outwardly and downwardly from the hub, each traction element being deflectably attached to the hub so that it pivotally and resiliently deflects toward the sole when it encounters a hard surface.
- the traction element deflection When used on grass or turf, the traction element deflection results in grass blades being trapped between the upper surface of the traction elements and the sole of the shoe, thereby grabbing the grass blades and providing the desired traction function.
- the deflection serves to minimize abrasive wear of the traction elements on hard surfaces such as golf paths.
- the traction elements do not penetrate the surface on which they are used, thereby minimizing damage to the turf.
- the deflecting traction elements provide only minimal, if any, traction since each traction element is designed to spread and flex on the ground surface.
- the Japana golf shoe cleat includes a plurality of long and short legs protruding outwardly from a body of the cleat to contact a turf surface when connected to the sole of a shoe.
- the long legs and short legs are disposed along a periphery of the cleat body in an alternating configuration, where one or more long legs are provided between two adjacent short legs.
- the long legs are provided to provide traction on turf whereas the short legs press down hard on the grass and chiefly support the weight bearing on the cleat.
- the Japana cleat is limited in that it only discloses symmetrically alternating long and short legs extending from the shoe sole.
- the axially symmetric Japana cleat is not capable of being indexed or oriented in different positions with respect to the shoe sole in order to selectively position the weight bearing shorter legs and the penetrating longer legs in different alignments based upon cleat applications requiring different directions and levels of traction.
- an object of the present invention is to provide a shoe cleat with enhanced traction while minimizing damage to turf surfaces. It is another object of the present invention to provide a shoe cleat that does not easily wear on hard surfaces such as concrete or asphalt yet provides a suitable level of traction for such hard surfaces.
- an indexable shoe cleat including a hub with at least one dynamic traction element and at least one static traction element extending from an exposed surface of the hub and away from the sole of a shoe when the cleat is secured to the shoe sole, where the traction elements are asymmetrically positioned about a central axis of the hub.
- the dynamic traction element is configured to deflect toward the shoe sole when the shoe engages a ground surface to reduce damage to turf surfaces as well as to minimize wear and tear to the cleat on harder surfaces.
- the static traction element is configured to substantially resist deflection when the shoe engages the ground surface and to provide a suitable bearing for supporting weight applied to the shoe.
- a cleat com ector is preferably disposed on a surface of the hub that opposes the exposed surface to connect the cleat to the shoe sole.
- the cleat connector is suitably configured to connect the cleat to the shoe sole so as to align each of the static and dynamic traction elements in a desired orientation with respect to the shoe.
- a plurality of shoe cleats may further be selectively indexed on the shoe to vary the orientations of the traction elements of each cleat with respect to the shoe sole based upon a particular application and/or user preference.
- Fig. 1 is a bottom view in plan of an exemplary shoe cleat in accordance with the present invention.
- Fig. 2 is a side view in elevation of the shoe cleat of Fig. 1.
- Fig. 3 is a bottom view in plan of an alternative embodiment of an exemplary shoe cleat in accordance with the present invention.
- Fig. 4 is a bottom view in plan of another alternative embodiment of an exemplary shoe cleat in accordance with the present invention.
- Fig. 5 is an elevated side view in partial section of the shoe cleat of Fig. 1 including a cleat connector and a connection member that engages with the cleat connector.
- Fig. 6 is a bottom view of a pair of shoes to which are secured a number of shoe cleats substantially similar to the shoe cleat of Fig. 1.
- shoe cleat 1 includes a generally circular hub 2 having a top surface 3 and a bottom surface 4.
- the hub is not limited to a circular configuration but may have any suitable geometric configuration including, without limitation, rounded, elliptical, rectangular, triangular, etc.
- top surface and bottom surface refer to surfaces of the shoe cleat that face toward or away, respectively, from the shoe sole.
- the top surface of the hub may be connected to the shoe sole in any suitable manner to secure the cleat to the shoe.
- the shoe cleat is removably connected to the shoe sole with a cleat connector such as the connector illustrated in Fig. 5 and described below.
- the cleat is preferably constructed of any suitable plastic materials, including, without limitation, polycarbonates, polyamides (e.g., nylon), polyurethanes, natural or synthetic rubbers (e.g., styrene-butadiene), and other elastomeric polyolefins.
- the traction elements engage the ground surface when the shoe to which the cleat is attached is brought down into contact with that surface.
- the traction elements include a set of four sequentially aligned and substantially evenly spaced dynamic traction elements 10 and a set of four sequentially aligned and substantially evenly spaced static traction elements 30.
- any suitable spacing distance e.g., even or uneven
- the dynamic traction elements are designed to resiliently pivot with respect to the hub and deflect toward the shoe sole when the shoe engages a ground surface as described below, whereas the static traction elements remain substantially rigid and are resistant to deflection upon engaging the ground surface.
- the dynamic traction elements 10 are generally aligned in a set along a first half of the hub perimeter, whereas the static traction elements 30 are generally aligned in a set along the remaining half of the hub perimeter.
- any suitable number of sets of traction elements including any suitable number of static or dynamic traction elements may be oriented in axial asymmetry in any suitable manner along the hub bottom surface.
- cleat 100 includes a set of four dynamic traction elements 120 and a set of three static traction elements 130.
- Other embodiments may include sets having a greater number of static traction elements than sets with dynamic traction elements as well as multiple sets of one or both of the static and dynamic traction elements.
- cleat 150 includes two sets of dynamic traction elements 160 and two sets of static traction elements 170.
- cleat 150 includes a set of three dynamic traction elements, a set of two dynamic traction elements, and two sets of two static traction elements.
- the selection of a specific cleat design including a selected number of each type of traction element as well as a selected orientation of the traction elements in sets on the hub, may depend upon a specific application in which the cleat will be utilized and the type or amount of traction that is desired for that application.
- Each dynamic traction element 10 includes a generally rectangular upper leg 11 extending at an obtuse angle (e.g., approximately 155°) from a peripheral side portion of hub 4 and a generally polyhedral lower leg 12 that extends at an obtuse angle (e.g., approximately 135°) from the upper leg and tapers toward its terminal end, where the lower leg is greater in longitudinal dimension than the upper leg.
- Each lower leg 12 terminates at a foot 13 that has a rounded, convex curvature with respect to the ground surface when the cleat is attached to a shoe.
- the dynamic traction elements 10 have substantially similar dimensions, with their feet 13 all residing in and defining a plane that is generally parallel to the bottom surface of the hub.
- the dimensional design and/or materials of construction of dynamic traction elements 10 are selected to permit a selected degree of deflection of the dynamic traction elements when the cleat is forced against the ground surface as described below.
- the radial dimension of the hub is reduced to form a concave hub perimeter on either side of each dynamic traction element so as to enhance deflection of these elements when the cleat engages a ground surface.
- Each upper leg 11 is partially defined by a generally rectangular outer surface 14 extending from the periphery of the top surface of the hub to a generally trapezoidal outer surface 15 defining a portion of each corresponding lower leg 12.
- inner surface and outer surface refer to surfaces of the static and dynamic traction elements that face toward or away, respectively, from the central axis of the hub (i.e., the axis extending between the top and bottom surfaces of the hub through its center).
- Opposing trapezoidal side surfaces 19 of each lower leg 12 are disposed between the inner and outer surfaces of the lower leg and extend from corresponding side surfaces of upper leg 11 to foot 13.
- the outer surface 14 of the upper leg includes a pair of longitudinally extending triangular ridges 16, where each ridge 16 extends from the junction of the upper leg outer surface with the hub top surface to the junction of the upper leg outer surface with the lower leg outer surface 15.
- lower leg outer surfaces 15 include a number of outwardly extending ramped sections 18 that extend in a direction toward the upper legs.
- the ridges and ramped sections of the upper and lower leg outer surfaces provide enlianced traction for the dynamic traction elements as described below.
- any number of suitable protrusions may be provided on the outer surfaces of the dynamic traction elements to enhance traction as described below.
- Each lower leg 12 of the dynamic traction elements is further partially defined by an inner surface 20 extending from the hub bottom surface to foot 13 at the free end of the lower leg.
- Each inner surface 20 has a generally trapezoidal geometry with a slight convex curvature.
- gussets 21 are provided along the interior surfaces of the lower legs to assist in biasing the deflected dynamic traction elements back to their original positions when the shoe to which the cleat is attached is lifted from the ground surface.
- Each gusset 21 is generally triangular, with one side of the gusset attaching to a portion of the lower leg inner surface of a corresponding dynamic traction element and another side of the gusset attaching to a portion of the hub bottom surface.
- each gusset is preferably resilient to act as springs, pulling the dynamic traction elements back into their upright, cantilevered positions when the shoe is raised from a ground surface.
- each gusset preferably acts as a wear surface when the dynamic traction elements are deflected toward the shoe sole, so that even the inner surfaces of these fraction elements are substantially protected from abrasion.
- Static traction elements 30 each include a generally rectangular upper leg 31 extending at an obtuse angle (e.g., about 155°) from a peripheral side portion of hub 4 and a generally rectangular lower leg 32 extending at an obtuse angle (e.g., about 135°) from the upper leg.
- Each lower leg 32 terminates at a foot 33 that has a rounded, convex curvature with respect to the ground surface when the cleat is attached to a shoe.
- the static traction elements 30 have substantially similar dimensions, with their feet 33 all residing in and defining a plane that is generally parallel to the bottom surface of the hub. That plane is also parallel to the plane defined by feet 13 but resides closer to hub 4.
- the static traction elements are all shorter in longitudinal dimension than the dynamic traction elements and thus extend a shorter distance from the bottom surface of hub 4. It is noted that the dimensions and/or materials of construction of static traction elements 30 are selected to prevent or substantially resist deflection of the static traction elements when the cleat engages a ground surface. The radial dimension of the hub remains substantially constant between adjacent static traction elements to further support and prevent or resist deflection of these elements.
- the feet of the static traction elements are also preferably larger in dimension than the feet of the dynamic traction elements to enhance the weight bearing capabilities of the static traction elements when the shoe is pressed against the ground surface while preventing or minimizing puncturing or indenting of the turf surface.
- Each upper leg 31 of the static traction elements is partially defined by a generally rectangular outer surface 34 extending from the periphery of the top surface of the hub to a generally rectangular outer surface 35 defining a portion of each corresponding lower leg 32.
- the outer surface 34 of the upper leg includes a pair of longitudinally extending triangular ridges 36, where each ridge 36 extends from the junction of the upper leg outer surface with the hub top surface to the junction of the upper leg outer surface with the lower leg outer surface 35.
- Each lower leg 12 of the dynamic traction elements is further partially defined by an inner surface 38 extending from the hub bottom surface to foot 33 at the free end of the lower leg.
- Each inner surface 38 of the static traction elements has a generally rectangular geometry with a slight concave curvature.
- the arrangement of the sets of static and dynamic traction elements on the hub in the manner described above yields a cleat that is asymmetric about the hub central axis, with static traction elements disposed along one half of the hub perimeter and dynamic traction elements disposed along the other half.
- This axially asymmetric design allows the cleat to be indexed in a desired angular orientation along the surface of the shoe sole to achieve optimum positions for the static and dynamic traction elements and provide for a variety of enhanced traction effects for different applications as described below.
- the asymmetry may also be described in terms of the sets of dynamic and static traction elements; that is, the dynamic and static sets are positioned asymmetrically with respect to one another, both about the hub axis and about any and all hub diameters.
- cleat connector 6 extends from the top surface of the hub and is configured to releasably engage with a recess or receptacle 40 in shoe sole 42.
- the cleat comiector is substantially similar in design and function to the cleat connecting member described in U.S. Patent Application Publication No. US2002/0056210 to Kelly et al., the disclosure of which is incorporated herein by reference in its entirety.
- cleat connector 6 includes an externally threaded spigot 34 as well as additional projections 36 that align and engage with an internally threaded recess 43 and other corresponding elements disposed within a receptacle 40 of the shoe sole 42 as described in the Kelly et al. published application.
- the cleat connector and receptacle elements appropriately engage with each other by twisting the cleat connector within the receptacle to lock it therein, which in turn aligns the cleat in a specific orientation with respect to the shoe.
- cleat connector elements are suitably aligned on the hub and/or the receptacle elements are suitably aligned within the receptacle to achieve a selected orientation of the cleat traction elements with respect to the shoe sole when the cleat connector is locked within the shoe receptacle.
- cleat 1 is connected to the sole of a shoe by engaging cleat connector
- feet 13 and 33 of the traction elements spreads the contact over a greater area than a lineal edge and thereby prevents or substantially limit penetration, puncturing or indenting of the traction elements into turf surfaces. This curvature further facilitates the sliding of feet 13 along a surface when the dynamic traction elements are deflected toward the shoe sole.
- the static traction elements provide enhanced fraction for the cleat by resisting deflection and immediately bearing the weight that is applied to the shoe, while the dynamic traction elements deflect and are protected from serious abrasion by their gussets and the static elements.
- the ridges and ramped sections of the dynamic traction elements provide additional traction in turf surfaces by entangling and/or trapping grass blades to limit or prevent slipping of the cleat when engaged with the turf surface.
- the dynamic traction elements are preferably designed to allow both the upper and lower legs of each element to deflect against the shoe sole (or any extended portion of the hub) when sufficient weight is applied to the shoe.
- ramped sections 18 disposed on each lower leg 12 and ridges 16 disposed on each upper leg 11 essentially trap and lock grass blades between outer surfaces 14 and 15 of the upper and lower legs of each dynamic traction element and the shoe sole to resist sliding of the cleat on the turf surface.
- the static traction elements are structurally unable to deflect toward the shoe sole, and are therefore incapable of trapping grass blades in a manner similar to the dynamic traction elements.
- the ridges of the static traction elements provide an uneven outer surface that can entangle grass blades during contact with the turf, thus providing some enlianced level of traction.
- the shoe sole may contain recesses that correspond and cooperate with the dynamic traction element upper and lower legs and their ridges and ramped sections to provide a greater trapping and locking effect for grass blades by the cleat.
- Exemplary embodiments of recesses on the shoe sole that cooperate with deflecting dynamic traction elements of a cleat are described in U.S. Patent Application Serial No. 10/195,315, the disclosure of which is incorporated herein by reference in its entirety.
- the dimensions of the hub and traction elements of the cleat may also be modified to enhance traction and performance of the cleat.
- cleat traction is most effective when a ratio of a major dimension of the hub (e.g., the diameter for a circular hub) to an overall major dimension of the cleat, as defined by the largest outer boundary between the feet of at least two opposing traction elements, is no greater than about one.
- the ratio of hub major dimension to overall cleat major dimension is no greater than about 0.8.
- the dimensions of the static traction elements may be shorter than the dynamic traction elements, with static traction elements preferably having longitudinal dimensions in the range of about 4 mm to about 6 mm, and the dynamic traction elements having longitudinal dimensions in the range of about 5.25 mm to about 7.25 mm.
- the cleat may be designed such that dynamic traction elements disposed on the hub have smaller and/or substantially similar longitudinal dimensions as static traction elements on the hub.
- An exemplary orientation or indexing of cleats on a pair of shoes is illustrated in
- Fig. 6 While each shoe depicted in Fig. 6 includes a total of eleven cleats, the present invention is in no way limited to this cleat orientation or number of cleats per shoe. Rather, any suitable orientations and/or number of cleats may be provided on a shoe to provide enhanced traction for a particular application.
- a right shoe 202 and a left shoe 204 each include cleats 1 that are substantially similar to the cleat described above and illustrated in Figs. 1 and 2.
- Each cleat 1 is oriented on right shoe 202 such that its dynamic traction elements 20 generally face or point toward inner sole perimeter 203 of the right shoe, while static traction elements 30 of each cleat generally face or point away from the inner sole perimeter of the right shoe.
- each cleat 1 connected to left shoe 204 is oriented such that its static traction elements 30 generally face or point toward inner sole perimeter 205 of the left shoe and its dynamic traction elements generally face or point away from the left shoe inner sole perimeter.
- This orientation of the cleats on the right and left shoes is particularly useful for right handed golfers to enhance traction and resist rotation or other sliding movements of the shoes on a turf surface when the right handed golfer swings the club.
- each cleat 6 may be rotated about 180° to similarly enhance traction and resist rotation or other sliding movements of the shoes on the turf surface for left handed golfers.
- the specific orientation of each cleat with respect to the shoe may be controlled by appropriate alignment of the cleat connector elements on the hub and/or corresponding connecting elements in the shoe receptacle. It will be appreciated that the embodiments described above and illustrated in the drawings represent only a few of the many ways of implementing an indexable cleat with improved traction in accordance with the present invention.
- the cleat may include any number of sets of static and dynamic traction elements disposed in any suitable manner along the bottom surface of the cleat hub.
- the static and dynamic traction elements are arranged in an asymmetric manner with respect to the hub central axis so as to facilitate indexing of the cleat orientation with respect to the shoe.
- the traction elements may have any suitable geometric configuration and may be constructed of any suitable materials that allow the dynamic traction elements to deflect and the static traction elements to substantially resist deflection when engaging a ground surface.
- the hub may be constructed of any suitable materials and have any suitable geometric configuration (e.g., circular, square, elliptical, triangular, etc.).
- the cleat may include any number of dynamic traction elements having a longitudinal dimension that is greater, smaller or substantially similar to a longitudinal dimension of any number of static traction elements on the cleat.
- the static traction elements may be structurally identical throughout their lengths to the corresponding length portions of the dynamic traction elements; that is, the added length of the dynamic elements is what imparts the flexibility to the element and permits it to function as a dynamic traction element. It will be appreciated that flexibility need not be imparted by added length but instead may result for cross-sectional configuration or the material employed.
- the cleat may be removably or non-removably secured to the shoe sole. Any suitable cleat connector may be utilized to removably secure the cleat to the shoe in any selected orientation. Any number of cleats may be combined in any number of suitable orientations to provide enhanced traction for a particular user and/or a particular activity. Having described preferred embodiments of indexable shoe cleats with improved traction, it is believed that other modifications, variations and changes will be suggested to those skilled in the art in view of the teachings set forth herein. It is therefore to be understood that all such variations, modifications and changes are believed to fall within the scope of the present invention as defined by the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
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- Health & Medical Sciences (AREA)
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- Physical Education & Sports Medicine (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Tires In General (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004532825A JP4116621B6 (en) | 2002-08-27 | 2003-08-11 | Indexable shoe cleat with improved static friction |
CA002495994A CA2495994C (en) | 2002-08-27 | 2003-08-11 | Indexable shoe cleat with improved traction |
AU2003259231A AU2003259231A1 (en) | 2002-08-27 | 2003-08-11 | Indexable shoe cleat with improved traction |
EP03791606A EP1505889B1 (en) | 2002-08-27 | 2003-08-11 | Indexable shoe cleat with improved traction |
DE60309861T DE60309861D1 (en) | 2002-08-27 | 2003-08-11 | INDEXABLE GRIP FOR SHOES, WITH IMPROVED TRACTION |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/228,360 | 2002-08-27 | ||
US10/228,360 US6834446B2 (en) | 2002-08-27 | 2002-08-27 | Indexable shoe cleat with improved traction |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004019718A1 true WO2004019718A1 (en) | 2004-03-11 |
Family
ID=31976018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2003/023256 WO2004019718A1 (en) | 2002-08-27 | 2003-08-11 | Indexable shoe cleat with improved traction |
Country Status (7)
Country | Link |
---|---|
US (2) | US6834446B2 (en) |
EP (1) | EP1505889B1 (en) |
AT (1) | ATE345710T1 (en) |
AU (1) | AU2003259231A1 (en) |
CA (1) | CA2495994C (en) |
DE (1) | DE60309861D1 (en) |
WO (1) | WO2004019718A1 (en) |
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- 2002-08-27 US US10/228,360 patent/US6834446B2/en not_active Expired - Lifetime
-
2003
- 2003-08-11 EP EP03791606A patent/EP1505889B1/en not_active Expired - Lifetime
- 2003-08-11 CA CA002495994A patent/CA2495994C/en not_active Expired - Fee Related
- 2003-08-11 AU AU2003259231A patent/AU2003259231A1/en not_active Abandoned
- 2003-08-11 WO PCT/US2003/023256 patent/WO2004019718A1/en active IP Right Grant
- 2003-08-11 DE DE60309861T patent/DE60309861D1/en not_active Expired - Lifetime
- 2003-08-11 AT AT03791606T patent/ATE345710T1/en not_active IP Right Cessation
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2004
- 2004-11-15 US US10/987,033 patent/US20050108902A1/en not_active Abandoned
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WO2001054528A1 (en) * | 2000-01-24 | 2001-08-02 | Japana Co., Ltd. | Cleat for golf shoes |
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Also Published As
Publication number | Publication date |
---|---|
EP1505889B1 (en) | 2006-11-22 |
JP4116621B2 (en) | 2008-07-09 |
US6834446B2 (en) | 2004-12-28 |
AU2003259231A1 (en) | 2004-03-19 |
US20040040182A1 (en) | 2004-03-04 |
ATE345710T1 (en) | 2006-12-15 |
DE60309861D1 (en) | 2007-01-04 |
JP2005532142A (en) | 2005-10-27 |
CA2495994C (en) | 2009-07-07 |
CA2495994A1 (en) | 2004-03-11 |
US20050108902A1 (en) | 2005-05-26 |
EP1505889A1 (en) | 2005-02-16 |
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