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US 6,438,870 B2Granted
Shoe sole with shock absorber structure
AssigneeAsics Corporation
InventorsMitsuo Nasako, Tsuyoshi Nishiwaki, Shigeyuki Mitsui
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Abstract
A shock absorbing section (10) of a shoe sole (1) is provided with a shearing transformation element (11). This shearing transformation element (11, 11A) is supported at an upper position dislocated forward (F) with respect to a grounding surface (20) so that it performs a shearing transformation independently due to a load (W) applied from above.
Claims22
A shock absorber structure of a shoe sole with a shock absorbing section provided on the shoe sole,
- wherein said shock absorbing section is provided with a plurality of shearing transformation elements which are supported at an upper position dislocated forward with respect to a grounding surface so that each of them performs a shearing transformation independently in such a manner as to fall forward due to a load applied from above,
- wherein axes formed of loci of centers of plane sections of said shearing transformation elements are inclined forward as they go upward, respectively, and
- wherein between said plurality of shearing transformation elements, there are provided soft shock absorbing elements which have a smaller Young's modulus than that of said shearing transformation elements so that said individual shearing transformation elements can perform shearing transformations without any restriction from each other.
A shock absorber structure of a shoe sole with a midsole interposed between an upper adapted to cover an instep and an outer sole having a treading face on its outer surface,
- wherein said midsole has a shearing transformation element,
- wherein said shearing transformation element has a front end face and a rear end face, and
- wherein the front end face and the rear end face of said shearing transformation element are individually inclined forward as they go upward,
- whereby with these inclinations of said two end faces, said shearing transformation element performs a shearing transformation due to a load at a grounding time of a walking or running user's foot,
- wherein each of the front end face and the rear end face of said shearing transformation element is provided in proximity with a soft shock absorbing element which is set to have such a smaller Young's modulus than that of said shearing transformation element as to allow the shearing transformation of said shearing transformation element.
2 more elements
A shock absorber structure of a shoe sole with a midsole interposed between an upper adapted to cover an instep and an outer sole having a treading face on its outer surface,
- wherein said midsole has a shearing transformation element,
- wherein said shearing transformation element has a front end face and a rear end face, and
- wherein the front end face and the rear end face of said shearing transformation element are individually inclined forward as they go upward,
- whereby with these inclinations of said two end faces, said shearing transformation element performs a shearing transformation due to a load at a grounding time of a walking or running user's foot,
- wherein at least one of said two end faces of said shearing transformation element is provided in proximity with a soft shock absorbing element which is set to have such a smaller Young's modulus than that of said shearing transformation element as to allow the shearing transformation of said shearing transformation element.
2 more elements
A shock absorber structure of a shoe sole with a midsole interposed between an upper adapted to cover an instep and an outer sole having a treading face on its outer surface,
- wherein said midsole comprises:
- a compression transformation element performing a compression transformation due to a load applied from above;
- a shearing transformation element performing a shearing transformation in such a manner as to fall forward due to said load applied from above;
- and a soft shock absorbing element,
- wherein said shearing transformation element has a hollow portion for said soft shock absorbing element being loaded into,
- wherein said soft shock absorbing element is loaded into said hollow portion, and
- wherein said soft shock absorbing element is set to have such a smaller Young's modulus than that of said shearing transformation element as to allow the shearing transformation of said shearing transformation element.
4 more elements
A shock absorber structure of a shoe sole with a midsole interposed between an upper adapted to cover an instep and an outer sole having a treading face on its outer surface,
- wherein said midsole comprises:
- a compression transformation element performing a compression transformation due to a load applied from above;
- and
- a shearing transformation element having very little the continuity of transformation relationship to said compression transformation element,
- wherein said shearing transformation element has a front end face and a rear end face, and
- wherein each of the front end face and the rear end face of said shearing transformation element defines a slit extending along a direction of a width of a foot in a bottom portion of the shoe sole,
- wherein the slit disconnects said shearing transformation element from said compression transformation element,
- wherein the front end face and the rear end face of said shearing transformation element are individually inclined forward as they go upward,
- whereby with these inclinations of said two end faces, said shearing transformation element has a longitudinal section, as taken in the longitudinal direction, formed into a generally parallelogram shape, and said shearing transformation element performs a shearing transformation due to a load at a grounding time of a walking or running user's foot.
6 more elements
A shock absorber structure of a shoe sole with a midsole interposed between an upper adapted to cover an instep and an outer sole having a treading face on its outer surface,
- wherein said midsole comprises:
- a compression transformation element performing a compression transformation due to a load applied from above;
- and
- a shearing transformation element having very little the continuity of transformation relationship to said compression transformation element,
- wherein said shearing transformation element has a front end face and a rear end face, and
- wherein each of the front end face and the rear end face of said shearing transformation element defines a slit extending along a direction of a width of a foot in a bottom portion of the shoe sole,
- wherein the slit disconnects said shearing transformation element from said compression transformation element,
- wherein the front end face and the rear end face of said shearing transformation element are individually inclined forward as they go upward,
- whereby with these inclinations of said two end faces, said shearing transformation element performs a shearing transformation due to a load at a grounding time of a walking or running user's foot,
- wherein said compression transformation element performs said compression transformation to absorb shock, and
- wherein said shearing transformation element is essentially disposed at a lateral side of a rear foot part in said midsole and is scarcely disposed or not disposed at all at a front foot part and a medial side of said rear foot part in said midsole.
8 more elements
A shock absorber structure of a shoe sole with a midsole interposed between an upper adapted to cover an instep and an outer sole having a treading face on its outer surface,
- wherein said midsole comprises:
- a compression transformation element disposed at said front foot part and said medial side of said rear foot part in said midsole, performing a compression transformation due to a load applied from above, and
- a shearing transformation element having very little the continuity of transformation relationship to said compression transformation element,
- wherein said shearing transformation element has a front end face and a rear end face,
- wherein said shearing transformation element has a longitudinal section, as taken in the longitudinal direction, formed into a generally parallelogram shape, and
- wherein the front end face and the rear end face of said shearing transformation element are individually inclined forward as they go upward,
- whereby with these inclinations of said two end aces, said shearing transformation element performs a shearing transformation due to a load at a grounding time of a walking or running user's foot,
- wherein said compression transformation element performs said compression transformation to absorb shock, and
- wherein said shearing transformation element is essentially disposed at a lateral side of a rear foot part in said midsole and is scarcely disposed or not disposed at all at a front foot part and a medial side of said rear foot part in said midsole,
- wherein at least one of said two end faces of said shearing transformation element is provided in proximity with a soft shock absorbing element which is set to have such a smaller Young's modulus than that of said shearing transformation element as to allow the shearing transformation of said shearing transformation element.
7 more elements
A shock absorber structure of a shoe sole with a midsole interposed between an upper adapted to cover an instep and an outer sole having a treading face on its outer surface,
- wherein said midsole has a shearing transformation element, said shearing transformation element performs a shearing transformation due to a load at a grounding time of a walking or running user's foot,
- wherein either an upper end face or a lower end face of said shearing transformation element is provided in proximity with a soft shock absorbing element which is set to have a smaller Young's modulus than that of said shearing transformation element.
Dependencies are inferred from the claim text.