An insole capable of transmitting a force of tiptoes to a shoe sole and also capable of enhancing muscle strength of toes and a foot sole. An insole includes: an insole main body adapted to be accommodated in a bottom of a shoe; a thong attached to a toe-side front part of the insole main body; and an instep-side support provided at an end of the thong opposite to the insole main body and extending in a front-rear direction from a toe side to a heel side with respect to the thong, wherein a relationship SL≤KL is satisfied, where SL is a length of the instep-side support from a center of its part contacting the thong to a toe-side end part, and KL is a length from the center of its part contacting the thong to a heel-side end.

A dual-hardness outsole includes a front section, a middle section, and a rear section, at least the middle section of the outsole including a wedge having a bottom surface which extends below another bottom surface of at least one of the front and rear sections such that the wedge carries more weight than the other bottom surface. The outsole comprises a hard portion and a soft portion that are secured to each other and together form the wedge, a cross-sectional profile of the hard and soft density portions being such that a center portion of the wedge is softer than opposite lateral portions thereof.

Embodiments include a haptic transducer device comprising a magnetic assembly including a yoke and a magnet disposed within an inner cavity formed by the yoke. The device further includes a diaphragm having a top surface, a ledge projecting below and outwards relative to the top surface, and a sidewall extending downwards from the ledge towards the inner cavity. The device also includes a suspension extending concentrically around the diaphragm and including arms extending between inner and outer edges of the suspension, the inner edge being attached to the ledge of the diaphragm and the outer edge being attached to the outer ledge of the yoke. The device further includes a coil attached to the sidewall of the diaphragm and suspended within the inner cavity. One embodiment further includes an attachment groove integrated into the top surface of the diaphragm and configured for receiving attachment structures included on a footwear insole.

A shoe sole or insert of a unitary material having a gradual change in hardness and/or density characteristics and a method manufacturing the same.

A system for the treatment of a foot includes a waterproof boot capable of receiving an insert with a plurality of nozzles and a dispensing ring. The insert can receive a human foot to be treated therein. The plurality of nozzles and dispensing ring are each in fluid communication with a pump, when energized, delivers a continuous flow of a fluid therethrough. In a preferred embodiment, the fluid is a medicinal, toxin extracting fluid.

The present invention regards a sole for a sport shoe, work shoe or leisure shoe including a main body having a lower layer delimiting a surface, lower during use, set to come into contact with the ground and an upper layer set to come into contact with a foot of a user or to support from the bottom, during use, an insole.

Disclosed is a vibration generator for shoes, including: a flat vibration plate having a length longer than the width thereof; support pieces horizontally protruding in the widthwise direction of the vibration plate; upper and lower casings coupled while restricting each end portion of each support piece, so as to accommodate the vibration plate therein; core magnets fixedly provided in one or more places among the respective end portions in the lengthwise direction of the vibration plate; upper magnets fixed to the upper casing so as to face the core magnets, thereby generating a repulsive force; and bottom magnets fixed to the lower casing so as to face the core magnets, thereby generating a repulsive force.

Embodiments include a haptic transducer device comprising a magnetic assembly including a yoke and a magnet disposed within an inner cavity formed by the yoke. The device further includes a diaphragm having a top surface, a ledge projecting below and outwards relative to the top surface, and a sidewall extending downwards from the ledge towards the inner cavity. The device also includes a suspension extending concentrically around the diaphragm and including arms extending between inner and outer edges of the suspension, the inner edge being attached to the ledge of the diaphragm and the outer edge being attached to the outer ledge of the yoke. The device further includes a coil attached to the sidewall of the diaphragm and suspended within the inner cavity. One embodiment further includes an attachment groove integrated into the top surface of the diaphragm and configured for receiving attachment structures included on a footwear insole.

A tactile feedback shoe sole for footwear comprising a main body that defines a toe portion, an arch portion and a heel portion. A first chamber filled with a fluid is disposed in the toe portion. A second chamber comprising a second chamber upper wall, a second chamber lower wall and projections is disposed in the heel portion. A channel is disposed at the arch portion between the first chamber and the second chamber. If the first chamber is pressurized first before exerting pressure on the second chamber, which is likely to happen when the user of the sole runs following a forefoot running technique, the fluid from the first chamber flows to the second chamber and the fluid in the second chamber does not allow contact of the heel of the user to come in contact of the projections present in the inflated second chamber.

A sole structure for a shoe that can secure cushioning properties and obtain a ground surface information is disclosed. The sole structure includes a first midsole having a plurality of first protrusions on a foot-sole-contact side, an outsole having a plurality of second protrusions on a ground surface side, and a second midsole disposed at a part of a region between the first midsole and the outsole and having a lower compressive rigidity than the first midsole. At least a part of the plurality of first protrusions of the first midsole is located at a position corresponding vertically to at least a part of the plurality of second protrusions of the outsole.