US 11,849,799 B2
Shock absorber, shoe sole and shoe
Yutaro Iwasa, Kobe (JP); Masanori Sakamoto, Kobe (JP); Norihiko Taniguchi, Kobe (JP); and Koji Shimomura, Kobe (JP)
Assigned to ASICS CORPORATION, Kobe (JP)
Filed by ASICS CORPORATION, Kobe (JP)
Filed on Jun. 23, 2020, as Appl. No. 16/909,212.
Claims priority of application No. 2019-237764 (JP), filed on Dec. 27, 2019; application No. 2019-237765 (JP), filed on Dec. 27, 2019; application No. 2020-095628 (JP), filed on Jun. 1, 2020; and application No. 2020-095629 (JP), filed on Jun. 1, 2020.
Prior Publication US 2021/0195989 A1, Jul. 1, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A43B 13/02 (2022.01); A43B 13/04 (2006.01); A43B 13/14 (2006.01); A43B 7/32 (2006.01); A43B 13/12 (2006.01); A43B 13/18 (2006.01); A43B 21/26 (2006.01); B32B 3/12 (2006.01); F16F 7/12 (2006.01)
CPC A43B 13/023 (2013.01) [A43B 7/32 (2013.01); A43B 13/04 (2013.01); A43B 13/125 (2013.01); A43B 13/141 (2013.01); A43B 13/181 (2013.01); A43B 13/187 (2013.01); A43B 21/26 (2013.01); B32B 3/12 (2013.01); F16F 7/121 (2013.01); B32B 2437/02 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A shoe sole having a shock absorber comprising a three-dimensional structure composed of a plurality of unit structures repeatedly, regularly and continuously arranged in at least one direction, each unit structure of the plurality of unit structures being a three-dimensional shape formed by a wall having an external shape defined by a pair of curved surfaces,
wherein a differently shaped portion, which does not correspond to the wall defining each unit structure, is locally provided in a shock absorbing region which is a region in which the three-dimensional structure has the plurality of unit structures disposed;
wherein the differently shaped portion is in a form of a plate having a thickness in a direction intersecting with an axial direction in which the shock absorber exhibits a shock absorbing function as the shock absorber receives a load;
wherein each unit structure has one or more openings at an end of the unit structure in the direction intersecting with the axial direction;
wherein the differently shaped portion only covers one of the openings located at an end of the shock absorbing region in the direction intersecting with the axial direction of exactly one of the unit structures;
wherein the differently shaped portion is disposed only at the end of the shock absorbing region in the direction intersecting with the axial direction;
wherein the three-dimensional structure is a triply periodic minimal surface with a thickness added thereto; and
wherein the differently shaped portion has a compressive stiffness different from that of the unit structure.