Outsole
An outsole ( 1, 3 ), in particular, for athletic shoes ( 2 ) can be realized with a significant elastic deformability in the tangential direction so as to also achieve a superior shock-absorption when the foot contacts the ground obliquely and with a slight propulsive force. According to the invention, the sole ( 1 ) essentially is only rigid to a tangential deformation beyond at least one critical point of deformation in the region that is deformed to this critical point. This results in a correspondingly increased stability for the runner in the respective point of contact or load application. The runner is also able to push off from the point of load application without any loss in distance. A floating effect on the sole is prevented.
1. An outsole for a shoe, the shoe disposed along a longitudinal axis in a longitudinal direction parallel to a ground surface in use, the outsole comprising:
a resilient member having an inner surface, an outer surface and, with respect to a direction perpendicular to the longitudinal direction, an upper portion and a lower portion, the outer surface of the lower portion proximate the ground surface in use,
the resilient member having first and second configurations, the first configuration having the inner surface of the upper portion spaced from the inner surface of the lower portion, the resilient member elastically absorbs shoe loads oblique to the perpendicular direction by relative motion in the longitudinal direction between the upper portion and the lower portion in the first configuration, the second configuration having the inner surface of the upper portion engaged with the inner surface of the lower portion due to absorbed shoe loads, the engagement substantially preventing relative motion in the longitudinal direction between the upper portion and the lower portion.
2. The outsole according to claim 1 , wherein the engagement comprises frictional engagement.
3. The outsole according to claim 2 , wherein the resilient member comprises a plurality of resilient members, the plurality of resilient members being disposed along the longitudinal axis.
4. The outsole according to claim 3 , further comprising a resilient layer connecting the plurality of resilient members.
5. The outsole according to claim 4 , wherein the resilient layer connects lower portions of the plurality of resilient members.
6. The outsole according to claim 2 , wherein the resilient member is elastically deformed by more than 20% in the second configuration.
7. The outsole according to claim 2 , wherein the resilient member is elastically deformed by more than 50% in the second configuration.
8. The outsole according to claim 1 , wherein the engagement comprises positive engagement.
9. A device for wearing on a foot, comprising:
a member adapted to grasp the foot, the grasping member disposed along a longitudinal axis in a longitudinal direction parallel to a ground surface in use; and
an outsole, the outsole comprising;
a resilient member having an inner surface, an outer surface, and, with respect to a direction parallel to the longitudinal direction, an upper portion and a lower portion, the outer surface of the lower portion proximate the ground surface in use,
the resilient member having first and second configurations, the first configuration having the inner surface of the upper portion spaced from the inner surface of the lower portion, the resilient member elastically absorbs loads oblique to the ground perpendicular direction by relative motion in the longitudinal direction between the upper portion and the lower portion in the first configuration, the second configuration having the inner surface of the upper portion engaged with the inner surface of the lower portion due to absorbed shoe loads, the engagement substantially preventing relative motion in the longitudinal direction between the upper portion and lower portion.
10. The device according to claim 9 , wherein the grasping member comprises a shoe.