The present disclosure is generally related to footwear. The disclosure has particular utility in connection with sports footwear such as soccer footwear having a hard, one-piece, molded outsole and will be described in connection with such utility, although other utilities are contemplated.
The present disclosure relates to new designs for cleated or spiked athletic shoes. The disclosure has particular applicability to cleated soccer footwear or so-called “soccer boots” or “soccer shoes” and will be described in connection with such utility, although the disclosure also may be advantageously used with other cleated or spiked footwear including, but not limited to cricket shoes, football boots, baseball shoes, track shoes, rugby shoes and the like. The disclosure also advantageously may be used with cleated or spiked footwear subject to unidirectional or asymmetric rotational motion such as golf shoes and sport shoes for shot put, discus, javelin, and the like.
Athletic shoes are a combination of many elements which have specific functions, all of which must work together for the support and protection of the wearer's foot during an athletic event. Cleated or spiked athletic shoes, particularly soccer boots, typically include an upper which is assembled or bonded to a Stroble board or midsole, a removable insole over the Strobel board or midsole and a cleated or spiked outsole. The outsole provides traction, protection, and a durable wear surface.
The sport of soccer imposes special demands upon player footwear. To begin with, players run long distances. In a 90 minute match, a player may run as much as (or more than) 14 kilometers (over 8.5 miles). When practice sessions are also considered, a player may run in excess of 70 kilometers (43.5 miles) per week while wearing soccer boots. It is thus important that soccer boots protect and support the foot while minimizing discomfort.
The presence of cleats or spikes on a shoe or boot outsole presents additional problems in this regard. Specifically, cleats or spikes can cause point pressures on a player's foot, particularly when the player is running over a hard playing field. Moreover, the long distances that a player must run, in combination with the side-to-side motions, foot-planting motions (for kicking a ball) and other common motions, can cause a player to become even more fatigued and injury prone than the player might be from simply running.
Pronation, or the rolling of a foot from the outside to the inside during running, is of special interest. In particular, pronation occurs as a runner's foot strikes the ground on the outside (or lateral) edge of the foot and the foot then rolls inward so as to place the inner (or medial) edge on the ground. A certain amount of pronation is natural and necessary for normal running. Pronation is considered abnormal when it occurs in the 2nd half of the support phase of the step. Since this phase is consistent with the period when the heel is rising, then anything which impacts the ability of the heel to lift (i.e., lost motion of the metatarsophalangeal joints) can create an environment in which the foot must excessively pronate as an accommodation to restriction of heel lift.
Also in the case of cleated or spiked footwear there is a “mismatch” between traction and available rotation during running, stopping and changing direction. Non-contact injuries to the knee are a major issue in sports, particularly soccer, where stopping abruptly and changing direction causes excessive rotational stress on the cruciate ligament in the knee. Rupture of this structure is unfortunately common.
Additionally, the presence of a cleat or spike directly under the wearer's first metatarsal head inhibits flexing of the foot by locking the wearer's first metatarsal head joint, which in turn essentially locks the wearer's foot to the ground, increasing the risk of knee damage caused by the wearer's foot being unable to rotate.
The present disclosure addresses the foregoing problems and other problems of the prior art by providing cleated or spiked footwear that controls motion of the wearer's foot, increases comfort and reduces fatigue, while also reducing stress by permitting normal foot joint flexibility while simultaneously maintaining traction while running, stopping and changing direction.
Cleated or spiked footwear normally is fabricated with cleated or spiked protrusions extending from the bottom outward towards the field surface. When cleats or spikes are placed directly under the first metatarsal head (which is traditional), they create an upward force on the wearer's first metatarsal head, causing the first metatarsal phalangeal joint (toe joint) to either reduce its ability to flex or completely lock up during the loading phase of running.
To facilitate both traction and flexibility, and also reduce stress on the cruciate ligament of the knee, in accordance with one embodiment of our disclosure, we provide cleated or spiked footwear comprising an outsole having an essentially rigid forefoot region and an essentially rigid heel region with a flex channel positioned therebetween. A specially shaped depression or inverted dome is formed extending downward from the top of the rigid forefoot region and is configured to lie directly under the first metatarsal head of the wearer. The shape of this depression or inverted dome preferably is not simply round, but instead of oblique orientation, so as to permit the first metatarsal head of the wearer to plantarflex and evert while under load, i.e., in accordance with the teachings of prior U.S. Pat. No. 8,166,674 the contents of which are incorporated herein by reference. Since this depression or inverted dome is concave facing upwards and convex facing downward, a convex surface is surrounded by cleats or spikes extending outward from the outsole, where several cleats or spikes are radially arranged along the edges of the convex surface. Depending on the playing surface (i.e., grass or turf), the cleats or spikes may be made longer for grass or shorter for artificial turf so that the total of them will be flat on any given surface. However, the area configured to underlie the first metatarsal head of the wearer is devoid of a spike or cleat, i.e., so as to free the first metatarsal head of the wearer from loading by the spike or cleat.
In addition to cleats or spikes surrounding the depression or inverted dome on the bottom of the outsole, we arrange a plurality of cleats or spikes essentially on a radius extending from a center point of the depression or inverted dome, from the bottom of the toe region of the shoe and along the outer lateral bottom of the shoe. As so arranged the cleat or spike design promotes both lateral traction and enhanced rotational motion.
Having a depression area underlying the first metatarsal head of the wearer permits the first metatarsal head to plantarflex and evert. This allows a decoupling of the upward ground force from plantarflexing the first metatarsal head without sacrificing traction provided by either the cleat or spike
Also, the heel portion of conventional cleated or spiked footwear also may promote excessive traction and potential for injury. In accordance with another embodiment of the present disclosure, we provide a downwardly directed heel depression within the heel region of the shoe configured to essentially underlie and match the underside of the human calcaneus bone. Preferably the heel depression is a slightly larger depression under the medial tuberosity and a very subtly raised area under the lateral tuberosity, i.e., in accordance with the teaching of our prior U.S. Pat. No. 10,702,008, the contents of which are incorporated herein by reference. The bottom of the depression is provided with a plurality of cleats or spikes surrounding the bottom of the heel depression essentially on a radius emanating from a center of the heel depression. Additional cleats or spikes may be provided along the outer edge of the heel portion of the shoe, also within a prescribed radius with the center being a center point of the heel depression.
Also, in order to provide for flexibility, the heel region and the forefoot section of the outsole are separated from one another by a region with reduced material, a flex channel, whereby the heel region and the forefoot region are capable of independent motion during activity.
More particularly, in accordance with the disclosure there is provided a cleated or spiked shoe comprising: an upper, a Strobel board or midsole assembled to the upper, and an outsole assembled or bonded to the assembled upper and Strobel board or midsole. The outsole has a plurality of cleats or spikes which are secured to or incorporated in the outsole. The insole has a first forefoot region configured to underlie heads of the second, third, fourth, and fifth metatarsal bones of a foot of a wearer, and a second forefoot region having a concave depression extending downward from a top of the insole configured to underlie a head of the first metatarsal bone of the foot of the wearer and configured to permit the head of the first metatarsal bone of the wearer to plantarflex and evert while under load. The insole concave depression extends as a convex surface below a bottom surface of the insole and into a corresponding area of reduced support in the Strobel board or midsole. The area of reduced support in the Strobel board or midsole may comprise an inverted dome, and area of reduced durometer or a hollow, preferably a through hole. Underlying the area of reduced support on the Strobel board or midsole and the concave depression of the insole is a corresponding concave depression in the outsole. The concave depression of the outsole extends as a convex surface below a bottom surface of the outsole.
In one embodiment, the plurality of cleats or spikes are radially arranged about the convex surface of the outsole.
In another embodiment, the plurality of cleats or spikes are radially arranged about a second convex surface of the outsole, the second convex surface positioned at a heel region of the outsole.
In a further embodiment, the insole and the Strobel board or midsole and the outside each have a heel region having a concave heel depression configured to underlie an underside of the wearer's calcaneus bone.
In yet another embodiment, the outsole comprises a heel region which has the plurality of cleats or spikes radially arranged about a convex surface of the outsole of the forefoot region.
In such embodiment, the concave heel depression extends as a second convex surface of the outsole at a heel region, the heel region having the plurality of cleats or spikes radially arranged about the second convex surface of the outsole.
In still another embodiment, the outsole comprises a flex channel positioned posterior to the forefoot region.
In a further embodiment, the left shoe and the right shoe are left and right shoe mirror images of one another.
In such embodiment, the shoes are selected from the group consisting of baseball shoes, cricket shoes, football boots, soccer boots, rugby shoes and track shoes.
In such embodiment, one of the left or the right shoes has a first plurality of cleats or spikes of the plurality of cleats or spikes radially arranged about the convex surface of the forefoot region of the outsole and a second plurality of cleats or spikes of the plurality of cleats or spikes positioned at a heel region of the outsole, wherein the second plurality of cleats or spikes are radially arranged about the convex surface of the forefoot region of the outsole.
In such embodiment, one of the left or the right shoes has a first plurality of cleats or spikes of the plurality of cleats or spikes positioned at the forefront of the outsole and radially arranged about a second convex surface of the outsole, the second convex surface positioned at a heel region of the outsole and a second plurality of cleats or spikes of the plurality of cleats or spikes positioned on a heel region of the outsole, wherein the second plurality of cleats or spikes are radially arranged about the second convex surface of the outsole.
In such embodiment, the outsoles are different for left and right shoes.
In such embodiment the plurality of cleats or spikes are arranged differently on the left and right shoes.
In such embodiment, the shoes are selected from the group consisting of golf shoes, discus shoes, javelin shoes and shot put shoes.
In such embodiment one of the left or the right shoes has a first plurality of cleats or spikes of the plurality of cleats or spikes positioned at the forefoot of the outsole and radially arranged about the convex surface and a second plurality of cleats or spikes of the plurality of cleats or spikes positioned on a heel region of the outsole and radially arranged about the convex surface, and wherein the other of the left or the right shoe has a first plurality of cleats or spikes radially arranged about a second convex surface of the outsole, the second convex surface positioned on a heel region of the outsole and a second plurality of cleats or spikes positioned on a heel region of the outsole and radially arranged about the second convex surface of the outsole.
In such embodiment a first plurality of cleats or spikes of the plurality of cleats or spikes is positionable on the forefoot region of the outsole; and a second plurality of cleats or spikes of the plurality of cleats or spikes is positionable on the heel region of the outsole.
In such embodiment the first plurality of cleats or spikes and the second plurality of cleats or spikes are removably positionable on the forefoot region of the outsole and on the heel region of the outsole, respectively.
In such embodiment a first plurality of cleats or spikes of the plurality of cleats or spikes is positioned on the forefoot region of the outsole and radially arranged about the convex surface of the outsole, and a second plurality of cleats or spikes of the plurality of cleats or spikes positioned on a heel region of the outsole is radially arranged about a second convex surface of the outsole heel region.
The disclosure also provides a cleated or spiked shoe comprising: an upper, a Strobel board or midsole assembled to the upper, and an outsole assembled or bonded to the assembled upper and Strobel board or midsole. The outsole has a plurality of cleats or spikes which are secured to or incorporated in the outsole. The insole and outsole have a first concave depression at a forefoot region, while the Strobel board or midsole has an area of reduced support, aligned between the first concave depressions of the insole and the outsole. The first concave depression is configured to underlie a head of the first metatarsal bone of the foot of the wearer and configured to permit the head of the first metatarsal bone of the wearer to plantar flex and evert while under load. The first concave depression extends as a convex surface below a bottom surface of the outsole. The insole, Strobel board or midsole, and outsole also have a second concave depression at a heel region. The second concave depression is configured to underlie a calcaneus of the foot of the wearer. The second concave depression extends as a convex surface below a bottom surface of the outsole.
In such embodiments, the plurality of cleats comprises a first plurality of cleats or spikes positioned on the forefoot region of the outsole and a second plurality of cleats or spikes positioned on the heel region of the outsole, wherein each of the first plurality of cleats or spikes and the second plurality of cleats or spikes are radially arranged about the first convex surface of the outsole.
In another embodiment, the plurality of cleats comprises a first plurality of cleats or spikes positioned on the forefoot region of the outsole and a second plurality of cleats or spikes positioned on the heel region of the outsole, wherein each of the first plurality of cleats or spikes and the second plurality of cleats or spikes are radially arranged about the second convex surface of the outsole.
In yet another embodiment, the left shoe and the right shoe are left and right shoe mirror images of one another.
According to Aspect A, there is provided a cleated or spiked shoe comprising: an upper, a Strobel board or midsole assembled to the upper, and an outsole assembled or bonded to the assembled upper and Strobel board or midsole, and having a plurality of cleats or spikes which are secured to or incorporated in the outsole, wherein the insole has a forefoot region, having a first forefoot region configured to underlie heads of the second, third, fourth, and fifth metatarsal bones of a foot of a wearer, and a second forefoot region having a first concave depression extending downward from a top of the insole configured to underlie a head of the first metatarsal bone of the foot of the wearer and configured to permit the head of the first metatarsal bone of the wearer to plantarflex and evert while under load, wherein the outsole is devoid of cleats or spikes in an area underlying the first concave depression in the insole, and wherein the insole first concave depression extends as a convex surface below a bottom surface of the insole and into an optional area of reduced support in the Strobel board or midsole, and wherein the area of reduced support of the Strobel board or midsole overlies an optional first concave depression in the outsole, wherein the optional first concave depression of the outsole extends as a convex surface below a bottom surface of the outsole.
In one embodiment of Aspect A, the plurality of cleats or spikes are radially arranged about the optional first convex surface of the outsole.
In another embodiment of Aspect A, the plurality of cleats or spikes are radially arranged about a second convex surface of the outsole, the second convex surface positioned at a heel region of the outsole.
In a further embodiment of Aspect A, the insole and the Strobel board or midsole comprise a heel region having a concave heel depression configured to underlie an underside of the wearer's calcaneus bone, wherein the concave heel depression extends as a second convex surface, below the bottom surface of the outsole at the heel region, the second convex surface positioned below a bottom surface of the Strobel board or midsole and into a corresponding concave heel depression in the outsole.
In a further embodiment of Aspect A, the outsole comprises a heel region which has the plurality of cleats or spikes radially arranged about the second convex surface of the outsole of the forefoot region.
In another embodiment of Aspect A, the concave heel depression extends as a second convex surface of the outsole at a heel region, the heel region having the plurality of cleats or spikes radially arranged about the second convex surface of the outsole.
In still another embodiment of Aspect A, the outsole comprises a flex channel positioned posterior to the first convex surface of the forefoot region.
In a further embodiment of Aspect A, the left shoe and the right shoe are mirror images of one another.
In yet another embodiment of Aspect A, the shoes are selected from the group consisting of baseball shoes, cricket shoes, football boots, soccer boots, rugby shoes and track shoes.
In a still further embodiment of Aspect A, spike or cleat patterns outsoles are different for left and right shoes, and wherein the shoes preferably comprise golf shoes, javelin shoes, discus shoes or shot put shoes.
In a further embodiment of the cleated or spiked shoe of Aspect A comprises a first plurality of cleats or spikes of the plurality of cleats or spikes positionable on the forefoot region of the outsole; and a second plurality of cleats or spikes of the plurality of cleats or spikes positionable on the heel region of the outsole.
In still yet another embodiment of Aspect A, the first plurality of cleats or spikes and the second plurality of cleats or spikes are removably positionable on the forefoot region of the outsole and on the heel region of the outsole, respectively.
In yet another embodiment of Aspect A, a first plurality of cleats or spikes of the plurality of cleats or spikes is positioned on the forefoot region of the outsole and radially arranged about the first convex surface of the outsole, and a second plurality of cleats or spikes of the plurality of cleats or spikes is positioned on a heel region of the outsole is radially arranged about a second convex surface of the outsole heel region.
According to Aspect B, there is provided a pair of left and right cleated or spiked shoes as above described, wherein one of the left or the right shoes has a first plurality of cleats or spikes of the plurality of cleats or spikes radially arranged about the first convex surface of the forefoot region of the outsole and a second plurality of cleats or spikes of the plurality of cleats or spikes positioned at a heel region of the outsole, wherein the second plurality of cleats or spikes are radially arranged about the first convex surface of the forefoot region of the outsole.
In one embodiment of Aspect B one of the left or the right shoes has a first plurality of cleats or spikes of the plurality of cleats or spikes positioned at the forefront of the outsole and radially arranged about a second convex surface of the outsole, the second convex surface positioned at a heel region of the outsole and a second plurality of cleats or spikes of the plurality of cleats or spikes positioned on a heel region of the outsole, wherein the second plurality of cleats or spikes are radially arranged about the second convex surface of the outsole.
In yet another embodiment of Aspect B one of the left or the right shoes has a first plurality of cleats or spikes of the plurality of cleats or spikes positioned at the forefoot of the outsole and radially arranged about the first convex surface and a second plurality of cleats or spikes of the plurality of cleats or spikes positioned on a heel region of the outsole and radially arranged about the second convex surface, and wherein the other of the left or the right shoe has a first plurality of cleats or spikes radially arranged about a second convex surface of the outsole, the second convex surface positioned on a heel region of the outsole and a second plurality of cleats or spikes positioned on a heel region of the outsole and radially arranged about the second convex surface of the outsole.
According to Aspect C, there is provided a cleated or spiked shoe comprising: an upper, a Strobel board or midsole assembled to the upper, and an outsole assembled or bonded to the assembled upper and Strobel board or midsole, and having a plurality of cleats or spikes which are secured to or incorporated in the outsole, a first concave depression in the insole configured to underlie a head of the first metatarsal bone of the foot of the wearer and configured to permit the head of the first metatarsal bone of the wearer to plantar flex and evert while under load, wherein the first concave depression extends as a convex surface below a bottom surface of the insole into an area of reduced support in the Strobel board or midsole; wherein the outsole has a first concave depression configured to underlie the first concave depression in the insole and the area of reduced support in the Strobel board or midsole; wherein the outsole is devoid of cleats or spikes, in an area underlying the first concave depression; and a second concave depression in the insole and in the outsole at a heel region, wherein the second concave depression is configured to underlie a calcaneus of the foot of the wearer, wherein the second concave depression extends as a convex surface below a bottom surface of the outsole.
In one embodiment of Aspect C, the plurality of cleats comprises a first plurality of cleats or spikes positioned on the forefoot region of the outsole and a second plurality of cleats or spikes positioned on the heel region of the outsole, wherein each of the first plurality of cleats or spikes and the second plurality of cleats or spikes are radially arranged about the first convex surface of the outsole.
In another embodiment of Aspect C, the plurality of cleats comprises a first plurality of cleats or spikes positioned on the forefoot region of the outsole and a second plurality of cleats or spikes positioned on the heel region of the outsole, wherein each of the first plurality of cleats or spikes and the second plurality of cleats or spikes are radially arranged about the second convex surface of the outsole.
In still yet another embodiment of Aspect C, the left shoe and the right shoe are left and right shoe mirror images of one another.
Other features and advantages of the present disclosure will be seen from the following detailed description taken in conjunction with the accompanying drawings, wherein like numerals depict like parts, and wherein:
As used herein the terms “cleat” and “spike” are used interchangeably.
Also, as used herein the terms “Strobel board” and “midsole” are used interchangeably. Also, as used herein the terms “shoe” or “boot” are used interchangeably.
For simplicity, in the following detailed description and drawings sometimes only half a pair of shoes is illustrated and discussed, it being understood that the other shoe is a mirror image, except in the case of golf shoes, or shoes for shot put, discus, javelin or the like, where the left and right shoes may be different to facilitate unidirectional or asymmetric rotational movement by the wearer.
As used herein the term “essentially rigid” as used in describing the forefoot and the heel region and the term “relatively flexible” as used in describing the bridge region, are relative terms to one another.
Referring to
The cleated or spiked shoe 10 includes a depressed area 28 or inverse dome 34 in the forward or forefoot region 22 of the insole 18, which overlies an area 38 of reduced support in the first region of the Strobel board or midsole 14, i.e., foot supporting surface of the forefoot region 22. Insole 18 depressed area 28 and Strobel board or midsole 14 area 38 of reduced support are located to underlie substantially only the first metatarsal head 30 of the wearer, and includes a hollow or depression or inverted dome relative to the remainder of the forefoot region 22, of asymmetric shape with the lowest point of the hollow or depression preferably skewed to the medial side of the center of the spiked or cleated footwear 10, as taught in prior U.S. Pat. No. 8,166,674, the contents of which are incorporated herein by reference. More particularly, the depressed area 28 in the forward or forefoot region 22 of the insole should be of a size sufficient to accommodate, at least in part, the first metatarsal head of the wearer, and permit the first metatarsal head of the wearer to rotate into eversion as will be discussed below. In a typical embodiment, depressed are 28 is substantially circular in plan, preferably having a diameter of about 2.54 cm to about 3.81 cm. Depressed area 28 also may be oval, egg-shaped or elongated in plan, and may be formed as a through hole, or may take the form of a depression, preferably having a nominal depth in the range of 2-3 mm measured from the top edge of the side walls bounding the depressed area 28 to the lowest point of the depression. Despite this relatively small amount, this has a profound effect of isolating the first metatarsal head of the wearer from the second, third, fourth, and fifth metatarsal heads, and permitting the first metatarsal head of the wearer to rotate into eversion as the wearer moves from midstance to propulsive phase. The area 38 of reduced support in the Strobel board or midsole also may comprise a hollow or through hole 38a (
More particularly, referred to
Positioning of the concave depression 28 is configured to permit the head 30 of the first metatarsal bone 32 of the wearer to plantarflex and evert while under load. The concave depression 28 may be a region of the second forefoot region 26 with reduced support and/or may be a region where the insole 18, has a concave depression 28 which extends as a convex surface 34 below a bottom surface 36 of the insole and into an area 38 of reduced support in the Strobel board or midsole 14. The area 38 or reduced support of Strobel board or midsole 14 preferably comprises a through hole or hollow 38a (
The concave depression 44 of the outsole 16 may extend below the bottom surface 78 of the outsole 16 at the forefoot region 22 as a rounded inverted dome like structure or convex surface 48. The forefoot region 22 of the outsole 16 may have a plurality of cleats or spikes 20 substantially surrounding the dome like structure 48. However, the dome 48 itself is free of cleats or spikes, thereby leaving the first metatarsal head of the wearer unloaded. In one embodiment, the plurality of cleats or spikes 20 on the forefoot region may be radially arranged about the convex surface 48 of the outsole 16. Also attached to the forefoot region are a plurality of radially disposed cleats or spikes 20 configured from in front of the big toe of the wearer and along the outside lateral edge of the shoe.
The heel region 50 of Strobel board or midsole 14 may also include a concave heel depression 53 or heel cup 53 in the form of a lop-sided generally round shaped concave heel depression 53 extending from the foot supporting surface, with its lowest region on its medial side. There is a corresponding lop-sided generally round shaped concave heel depression 52 in the insole 18. These two concave heel depressions 52, 53 serve to reduce pressure on the plantar facia of the wearer's foot as it travels from its attachment on the medial calcaneus to the proximal phalanges, i.e., as taught in our prior U.S. Pat. No. 10,702,008, the contents of which are incorporated herein by reference. Heel cup 53 typically is 1˜4 mm deep at its lowest, preferably 2-3.5 mm deep, more preferably 2.5-3 mm deep. The insole concave heel depression 52 extends below the bottom surface 36 of the insole 18 at heel region 50 as a convex heel surface 56 which may be a rounded inverted dome like structure. The convex heel surface 56 of the insole 18 may extend into a corresponding concave heel depression 53 of Strobel board or midsole 14. The heel depression 53 may extend below the bottom surface 42 of the Strobel board or midsole 14 at heel region 50 as a convex heel surface 57 which may be a round inverted done like structure. The convex heel surface 57 of the Strobel board or midsole 14 may extend into a corresponding concave heel depression 58 of the outsole 16. Alternatively, the heel section of the Strobel board or midsole 14 may comprise a hollow or through hole 57a (
The heel region 50 of the outsole 16 may also have a plurality of cleats or spikes 20 radially arranged about the second convex surface 60 of the outsole 16. The outsole 16 may also have a flex channel 62 positioned on the bottom surface 78 posterior to the convex surface 48 of the forefoot region 22. A flex notch 74 may also be positioned on an outsole sidewall 72, where the flex notch 74 is positioned on the outsole sidewall 72 substantially in line with the flex channel 62. The flex channel 62 and flex notch 74 may aid in permitting the metatarsals of the wearer to plantarflex and evert while under load, and in conjunction with the concave depression 28, 38, 44 may permit the head 30 of the first metatarsal bone 32 of the wearer to plantarflex and evert while under load.
In this same example, the second plurality of cleats or spikes 70 may be radially arranged about the second convex surface 60 of the outsole 16 at the heel region 50. The second plurality of cleats or spikes 70 may be arranged essentially on a radius 46b extending from a center point of the second convex surface 60. The radius 46b at the heel region may vary in length, thus allowing for various arrangement of the second plurality of cleats or spikes 70. In one example, two of the second plurality of cleats or spikes 70 may be arranged on a first radius 46b having a length. A third and forth of the second plurality of cleats or spikes 70 may then be arranged on a second radius 46b having a larger length, thereby placing the third and fourth of the second plurality of cleats or spikes 70 at a further distance away from the second convex surface 60. The flex channel 62 may additionally be provided to facilitate plantarflexion and eversion of the metatarsals of the wearer while under load,
The other of the right shoe 64 or left shoe 66 may have a differing arrangement for the first and second plurality of cleats or spikes 68, 70. In this example, the first and second plurality of cleats or spikes 68, 70 of the left shoe 66 may be arranged radially about the second convex surface 60. The first and second plurality of cleats or spikes 68, 70 of the left shoe 66 may be arranged essentially on a radius 46b extending from a center point of the second convex surface 60. In such an example, the right and left shoes 64, 66 primarily may still be mirror images of one another, where the differing aspect may lie in the outsole 16. The bottom surface 78 of the outsole 16 of each right and left shoe 64, 66 may have a flex channel 62, or in some examples, one of the right or left shoe 64, 66 may have a flex channel 62 where the other does not, and in some examples, neither right or left shoe 64, 66 will have a flex channel 62.
With reference to
Moreover, at least a portion of the first plurality of cleats 68 and the second plurality of cleats 70 are located to surround the convex surface 48 and the second convex surface 60, respectively, and is thus approximately positioned under the first metatarsal head, and the tuberosities of the calcaneus, respectively, thereby providing centers of rotation around both the ball of the foot and the calcaneus.
Various changes may be made in the foregoing disclosure without departing from the spirit and scope thereof. For example, while the disclosure has been made particularly with respect to soccer shoes, the disclosure advantageously also may beneficially be used with other cleated or spiked footwear, including, for example those used in baseball, football, and track shoes advantageously may particularly benefit from our technology. Also, sports footwear such as golf shoes, and track shoes for shot put, discus, javelin, and the like in which the wearer imposes unidirectional or asymmetric rotational movement advantageously may benefit from our technology by fashioning the left and right shoes to accommodate such movements. For example, as in the case of golf, the wearer's feet pronate and supinate in opposite directions during a swing. Thus, as illustrated in
Referring to
The convex surface 48 or inverted dome extends below the bottom surface 78 of the outsole 16 as an inverted round dome like structure. Convex surface 48 may include a center cleat or spike 20, but preferably is devoid of a center cleat or spike 20. The first and second plurality of cleats or spikes 68, 70 may be positioned symmetrically on the outsole 16 of the shoe, or may be symmetric in their numbering, i.e., if there are two cleats or spikes 20 on the lateral side of the outsole 16, there are two cleats or spikes, 20 on the medial side of the outsole 16. Each of the individual cleats of both of the first and second plurality of cleats or spikes 68, 70 may be removably positionable on the forefoot region 22 of outsole 16 and on the heel region 50 of outsole 16. Each of the individual cleats of both the first and second plurality of cleats or spikes 68, 70 may be fixed or removably attached to their respective positions on the outsole 16 by threaded fastener, mechanical fastener, glue, epoxy, and the like.
Various other changes may be made, without departing from the spirit and scope of the disclosure. By way of example, but not limitation, referring to
In still yet another embodiment, referring to
In still yet another embodiment of the disclosure, insole 18 is provided with an area of reduced support 28 configured to underlie the first metatarsal head of the wearer as above described, and also a depressed area 52 under the heel area as above described, while the outsole 16 is provided with a concave depression 44, while the Strobel board or midsole is flat. In all cases the cleat pattern in the forefoot section of the shoe is configured so that there are no cleats or spikes located directly under the foot supporting area of the shoe underlying the first metatarsal head of the wearer. That is to say, the first metatarsal head of the wearer is unloaded with respect to a cleat or spike. Various other changes may be made without departing from the spirit and scope of the disclosure.
This application is a continuation-in-part (CIP) application of co-pending U.S. application Ser. No. 18/117,309, filed Mar. 3, 2023, which application in turn claims priority to U.S. Provisional Application Ser. No. 63/319,595, filed Mar. 14, 2022, the contents of which are incorporated herein by reference.
Number | Date | Country | |
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63319595 | Mar 2022 | US |
Number | Date | Country | |
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Parent | 18117309 | Mar 2023 | US |
Child | 19070030 | US |