Shock absorbing device for shoe sole
First Claim
1. A shock absorbing device for a shoe sole comprising:
- an outer sole having a ground contact surface that contacts the ground at landing and an upper surface opposite to the ground contact surface;
a midsole that is disposed above the outer sole and has a bottom surface; and
a deformation element disposed between the outer sole and the midsole, whereinthe deformation element is joined to the bottom surface of the midsole and is joined to the upper surface of the outer sole,the deformation element has a tubular part in a flat tubular form,Young'"'"'s modulus of a material constituting the tubular part is greater than both that of a material constituting the midsole and that of a material constituting the outer sole,the tubular part is arranged so as to have a major axis generally along a longitudinal direction of a foot and a minor axis generally along a vertical direction,a length of the major axis is set within a range of about 25 mm to about 80 mm,the tubular part has a lower portion that is curved so as to be convex downwards and thereby undergoes bending deformation due to an impact load of landing,a concave first curved surface is provided on the upper surface of the outer sole,the lower portion of the tubular part fits into the first curved surface of the outer sole,a connecting member having a greater Young'"'"'s modulus than the midsole is joined to the bottom surface of the midsole,the tubular part is joined to the connecting member, andby joining the tubular part to the connecting member, the deformation element is retained by the connecting member.
1 Assignment
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Accused Products
Abstract
A shock absorbing device for a shoe sole according to the present invention comprises: an outer sole 2; a midsole M that is disposed above the outer sole 2; and a deformation element 3 disposed between the outer sole 2 and the midsole M. The deformation element 3 is joined to the bottom surface of the midsole M and is joined to the upper surface of the outer sole 2. The deformation element has a tubular part 30 in a flat tubular form, and Young'"'"'s modulus of a material constituting the tubular part 30 is greater than both that of a material constituting the midsole M and that of a material constituting the outer sole 2. The tubular part has a lower portion that is curved so as to be convex downwards and thereby undergoes bending deformation due to a shock at landing.
142 Citations
21 Claims
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1. A shock absorbing device for a shoe sole comprising:
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an outer sole having a ground contact surface that contacts the ground at landing and an upper surface opposite to the ground contact surface; a midsole that is disposed above the outer sole and has a bottom surface; and a deformation element disposed between the outer sole and the midsole, wherein the deformation element is joined to the bottom surface of the midsole and is joined to the upper surface of the outer sole, the deformation element has a tubular part in a flat tubular form, Young'"'"'s modulus of a material constituting the tubular part is greater than both that of a material constituting the midsole and that of a material constituting the outer sole, the tubular part is arranged so as to have a major axis generally along a longitudinal direction of a foot and a minor axis generally along a vertical direction, a length of the major axis is set within a range of about 25 mm to about 80 mm, the tubular part has a lower portion that is curved so as to be convex downwards and thereby undergoes bending deformation due to an impact load of landing, a concave first curved surface is provided on the upper surface of the outer sole, the lower portion of the tubular part fits into the first curved surface of the outer sole, a connecting member having a greater Young'"'"'s modulus than the midsole is joined to the bottom surface of the midsole, the tubular part is joined to the connecting member, and by joining the tubular part to the connecting member, the deformation element is retained by the connecting member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A shock absorbing device for a shoe sole comprising:
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an outer sole having a ground contact surface that contacts the ground at landing and an upper surface opposite to the ground contact surface; a midsole that is disposed above the outer sole and has a bottom surface; and a deformation element disposed between the outer sole and the midsole, wherein the deformation element is joined to the bottom surface of the midsole and is joined to the upper surface of the outer sole, the deformation element has a tubular part in a flat tubular form, Young'"'"'s modulus of a material constituting the tubular part is greater than both that of a material constituting the midsole and that of a material constituting the outer sole, the tubular part is arranged so as to have a major axis generally along a longitudinal direction of a foot and a minor axis generally along a vertical direction, a length of the major axis is set within a range of about 25 mm to about 80 mm, the tubular part has a lower portion that is curved so as to be convex downwards and thereby undergoes bending deformation due to an impact load of landing, a concave first curved surface is provided on the upper surface of the outer sole, the lower portion of the tubular part fits into the first curved surface of the outer sole, the deformation element is provided at least on a lateral side of a rear foot part of the foot, at least two deformation elements are provided separately from each other in a medial-lateral direction of the foot, and the minor axis of the tubular part becomes shorter as it gets closer to a center in the medial-lateral direction of the foot.
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20. A shock absorbing device for a shoe sole comprising:
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an outer sole having a ground contact surface that contacts the ground at landing and an upper surface opposite to the ground contact surface; a midsole that is disposed above the outer sole and has a bottom surface; and a deformation element disposed between the outer sole and the midsole, wherein the deformation element is joined to the bottom surface of the midsole and is joined to the upper surface of the outer sole, the deformation element has a tubular part in a flat tubular form, Young'"'"'s modulus of a material constituting the tubular part is greater than both that of a material constituting the midsole and that of a material constituting the outer sole, the tubular part is arranged so as to have a major axis generally along a longitudinal direction of a foot and a minor axis generally along a vertical direction, a length of the major axis is set within a range of about 25 mm to about 80 mm, the tubular part has a lower portion that is curved so as to be convex downwards and thereby undergoes bending deformation due to an impact load of landing, a concave first curved surface is provided on the upper surface of the outer sole, the lower portion of the tubular part fits into the first curved surface of the outer sole, the tubular part has an upper portion that is curved so as to be convex upwards and thereby undergoes bending deformation due to the impact load of landing, a concave second curved surface is provided on the bottom surface of the midsole, the upper portion of the tubular part fits into the second curved surface of the midsole, the tubular part has a front end portion in front of the lower portion and a rear end portion in the rear of the lower portion, and a thickness of the end portion is greater than both that of the upper portion and that of the lower portion. - View Dependent Claims (21)
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Specification