Golf shoe with traction elements
A golf shoe with an upper and a sole assembly connected to the upper. The sole assembly includes a midsole and an outsole. The outsole includes one or more traction elements for engaging with a plurality of different ground surfaces. In some embodiments, the traction elements comprise a first feature for mechanically interlocking with a deformable ground surface and a second feature for frictionally engaging with the deformable ground surface.
1 . A golf shoe, comprising:
an upper;
a sole assembly attached to the upper, the sole assembly comprising an outsole; and
a plurality of traction elements arranged on the outsole to enhance shoe traction, grip, and stability on a plurality of different surface types, wherein the plurality of traction elements includes (i) a first set of traction elements positioned along an anterior end and a posterior end of the outsole, (ii) a second set of traction elements positioned along a lateral side edge and a medial side edge of the outsole, wherein the traction elements of the second set of traction elements each comprise a first surface extending vertically downwards from a base surface of the outsole, a second surface angled back towards the base surface of the outsole to form a pointed edge configured to penetrate a deformable ground surface, and a third surface extending between the second surface and the base surface of the outsole, and (iii) one or more rubber inserts provided along the anterior and posterior ends of the outsole, wherein the one or more rubber inserts have a lower modulus of elasticity than the first set of traction elements and the second set of traction elements,
wherein the first set of traction elements or the second set of traction elements comprise a first feature for mechanically interlocking with the deformable ground surface, wherein the first feature comprises a first material, and
wherein the first set of traction elements, the second set of traction elements, or the one or more rubber inserts comprise a second feature comprising a second material for frictionally engaging with the deformable ground surface.
2 . The golf shoe of claim 1 , wherein the plurality of traction elements are configured to provide a first traction stiffness ranging from about 60 N/mm to about 80 N/mm in a medial-lateral direction on the deformable ground surface and a second traction stiffness ranging from about 80 N/mm to about 120 N/mm in an antero-posterior direction on the deformable ground surface.
3 . The golf shoe of claim 1 , further comprising one or more particles embedded in or dispersed through the first material or the second material to enhance (i) an abrasion resistance of the traction elements for off course wear and (ii) a frictional engagement between the traction elements and the deformable ground surface for on course wear.
4 . The golf shoe of claim 1 , wherein a first subset of the first set of traction elements or the second set of traction elements comprises the first feature, and wherein a second subset of the first set of traction elements or the second set of traction elements comprises the second feature.
5 . The golf shoe of claim 4 , wherein the first subset of traction elements has a greater height or aspect ratio than the second subset of traction elements.
6 . The golf shoe of claim 4 , wherein each and every traction element of the first subset of traction elements has a greater height than each and every traction element of the second subset of traction elements.
7 . The golf shoe of claim 1 , wherein the first feature comprises a core of the traction element, and wherein the second feature comprises a material coating on or around a portion of the core.
8 . The golf shoe of claim 1 , wherein the first feature comprises a body of the traction elements, and wherein the second feature comprises a surface of the traction elements.
9 . The golf shoe of claim 1 , wherein the first material has a greater hardness or modulus of elasticity than the second material.
10 . The golf shoe of claim 1 , wherein a coefficient of friction between the second material and the deformable ground surface is greater than a coefficient of friction between the first material and the deformable ground surface.
11 . The golf shoe of claim 1 , wherein the one or more rubber inserts are separated or spaced apart from the first set of traction elements and the second set of traction elements.
12 . The golf shoe of claim 1 , wherein the one or more rubber inserts are positioned between the first set of traction elements and the anterior or posterior end of the outsole.
13 . The golf shoe of claim 1 , wherein the one or more rubber inserts comprise a different material than the first set of traction elements and the second set of traction elements.
14 . The golf shoe of claim 1 , wherein the first set of traction elements and the second set of traction elements both comprise a same core material.
15 . The golf shoe of claim 14 , wherein the same core material comprises a thermoplastic polyurethane material with a higher modulus of elasticity than the one or more rubber inserts.
16 . The golf shoe of claim 1 , wherein the plurality of traction elements are positioned around a central region of the outsole, wherein the central region of the outsole extends from a midfoot region of the outsole to a forefoot region and a rearfoot region of the outsole, wherein the central region does not include any traction elements.
17 . The golf shoe of claim 1 , further comprising a coating applied to the plurality of traction elements, wherein the coating comprises a physical configuration and a material composition that each spatially vary across the outsole.
18 . The golf shoe of claim 1 , wherein the first surface is configured to provide a first horizontal contact area ratio and a first vertical contact area ratio when the golf shoe is worn on the deformable ground surface, and wherein the second surface is configured to flatten towards the base surface of the outsole when the golf shoe is worn on an off course ground surface to provide a second horizontal contact area ratio that is greater than the first horizontal contact area ratio and a second vertical contact area ratio that is less than the first vertical contact area ratio.