IP Library Granted Patent US 12,290,136
Granted Patent B2
US 12,290,136 · App. 18/247,617 · Granted May 6, 2025

Sole and shoe including same

Inventors: Kenta Tateno (Hyogo, JP); Yousuke Atarashi (Hyogo, JP)
Assignee: ASICS CORPORATION
A43B13/187A43B7/142A43B7/1445A43B13/12
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Quick Facts
Patent No.
US 12,290,136
App. No.
18/247,617
Granted
May 6, 2025
Kind
B2
Abstract

There is provided a sole having a forefoot support portion supporting a forefoot of a foot of a wearer, a midfoot support portion supporting a midfoot of the foot, and a rearfoot support portion supporting a rearfoot of the foot, the forefoot support portion, the midfoot support portion, and the rearfoot support portion being connected in this order from a front side, the sole including a midsole having cushioning property, in which the midsole includes a cushioning portion formed of a first foam material, and a torsion control portion formed of a second form material having higher hardness than the first foam material, and the torsion control portion includes a first portion extending in a front-rear direction over at least the entire midfoot support portion on a medial foot side, and a second portion extending obliquely rearward from the first portion toward a lateral foot side.

Claims (34)

1. A sole having a forefoot support portion supporting a forefoot of a foot of a wearer, a midfoot support portion supporting a midfoot of the foot, and a rearfoot support portion supporting a rearfoot of the foot, the forefoot support portion, the midfoot support portion, and the rearfoot support portion being connected in this order from a front side, the sole comprising:

a midsole having cushioning property, wherein

the midsole includes:

a cushioning portion formed of a first foam material; and

a torsion control portion formed of a second foam material having higher hardness than the first foam material, and

the torsion control portion includes: a first portion extending in a front-rear direction over at least the entire midfoot support portion on a medial foot side; and a second portion extending obliquely rearward from the first portion toward a lateral foot side.

2. The sole according to claim 1 , wherein the second portion extends in a direction connecting a portion supporting a first metatarsal proximal end of the foot of the wearer and a portion supporting a fifth metatarsal proximal end of the foot of the wearer, and is disposed in a region supporting a second metatarsal base to a fifth metatarsal base of the foot of the wearer.

3. The sole according to claim 1 , wherein the first portion extends rearward to the rearfoot support portion.

4. The sole according to claim 1 , wherein the first portion extends in the front-rear direction with a width from a medial-foot-side edge to a portion supporting the second metatarsal base of the foot of the wearer.

5. The sole according to claim 1 , wherein at least a part of the torsion control portion is formed of a non-foamed resin material having higher hardness than the first foam material.

6. The sole according to claim 5 , wherein at least one of the first portion and the second portion of the torsion control portion is formed of a non-foamed resin material having higher hardness than the first foam material.

7. The sole according to claim 1 , wherein the midsole has a laminated structure of a first layer including the cushioning portion and the torsion control portion, and a second layer formed of a material having lower hardness than the torsion control portion.

8. The sole according to claim 7 , wherein the second layer is positioned above the first layer.

9. The sole according to claim 1 , wherein the first portion has an upper surface of a medial-foot-side edge portion inclined downward toward a center in a width direction.

10. The sole according to claim 1 comprising

an outsole provided below the midsole, wherein

at least a part of a medial-foot-side surface of the torsion control portion is covered with the outsole.

11. The sole according to claim 1 , wherein the torsion control portion has the medial-foot-side surface formed with a plurality of rib-shaped protrusions.

12. The sole according to claim 11 , wherein the plurality of rib-shaped protrusions extends from an upper rear side to a lower front side.

13. The sole according to claim 1 , wherein the torsion control portion has the medial-foot-side surface formed with a plurality of groove-shaped recesses.

14. The sole of the shoe according to claim 13 , wherein the plurality of groove-shaped recesses extends from a lower rear side to an upper front side.

15. The sole according to claim 1 , wherein the second portion includes a narrowed portion having a partially small dimension in the front-rear direction.

16. A shoe comprising: the sole according to claim 1 ; and an upper positioned above the sole.

17. A sole having a forefoot support portion supporting a forefoot of a foot of a wearer, a midfoot support portion supporting a midfoot of the foot, and a rearfoot support portion supporting a rearfoot of the foot, the forefoot support portion, the midfoot support portion, and the rearfoot support portion being connected in this order from a front side, the sole comprising:

a midsole having cushioning property, wherein

the midsole includes:

a first member formed of a first foam material; and

a torsion control portion formed of a second foam material having higher hardness than the first foam material, and

the torsion control portion includes: a first portion extending in a front-rear direction over at least the entire midfoot support portion on a medial foot side; and a second portion extending obliquely rearward from the first portion toward a lateral foot side.

18. The sole according to claim 17 , wherein the second portion extends in a direction connecting a portion supporting a first metatarsal proximal end of the foot of the wearer and a portion supporting a fifth metatarsal proximal end of the foot of the wearer, and is disposed in a region supporting a second metatarsal base to a fifth metatarsal base of the foot of the wearer.

19. The sole according to claim 17 , wherein the midsole has a laminated structure of a first layer including the cushioning portion and the torsion control portion, and a second layer formed of a material having lower hardness than the torsion control portion.

20. The sole according to claim 17 comprising

an outsole provided below the midsole, wherein

at least a part of a medial-foot-side surface of the torsion control portion is covered with the outsole.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 31, 2023
From: TATENO, KENTA; ATARASHI, YOUSUKE
To: ASICS CORPORATION
Reel/Frame 063231/0190 →
Continuity (1)
Related Publication 20230380543A1 · Nov 30, 2023
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