In some examples, a sole layer for a footwear includes a housing structure, a cell in the housing structure, a solid support inside the cell to maintain a shape of the cell, and an inlet to the cell to receive an injected material to dissolve the solid support.

Disclosed in the present invention are a process for producing an anti-gravity balance massage type buffer convection airbag and an airbag cushion. The production process comprises the steps of preparing materials, laminating, preparing an upper cushion body, preparing a lower cushion body, laminating the upper cushion body and the lower cushion body, and shaping to obtain a finished product. The production process and the airbag cushion can produce anti-gravity and buffer convection effects while increasing the force area, and have the effects of balance and massage.

An insole installed on top of existing footwear with a sealed chamber extending across the plantar surface of the foot filled with a fluid that can traverse across the chamber in response to pressure caused by a weight shift by the wearer. The movement of the fluid (which may be a liquid, gas, or gel) serves to massage the foot muscles and tendons, release toxins, and increase circulation. The chamber may also have restrictions or unique shapes to guide the fluid for maximum effectiveness.

An insole installed on top of existing footwear with a sealed chamber extending across the plantar surface of the foot filled with a fluid that can traverse across the chamber in response to pressure caused by a weight shift by the wearer. The movement of the fluid (which may be a liquid, gas, or gel) serves to massage the foot muscles and tendons, release toxins, and increase circulation. The chamber may also have restrictions or unique shapes to guide the fluid for maximum effectiveness.

A dynamic pressure controlled air cushion device disposed on a bottom part of a shoe comprises a first air bag and a second air bag communicated with each other through an air passage, and the first air bag and the second air bag are respectively disposed corresponding to a front foot sole and a rear foot sole of a user. Through introducing the air into the first air bag by the first air pump and introducing the air into the second air bag by the second air pump, the first air bag and the second air bag are inflated, so as to increase a supporting force for the front foot sole and the rear foot sole of the user

A pressure sensing insole according to an embodiment of the present invention includes: a first electrode layer including a first conductive region; a first adhesive layer disposed on the first electrode layer and including an insulating region; an intermediate layer disposed on the first adhesive layer; a second adhesive layer disposed on the intermediate layer and including an insulating region; and a second electrode layer disposed on the second adhesive layer and including a second conductive region.

A plantar surface pressure offloading system includes an insole capable of coupling with a shoe and interfacing with a foot. A number of compressible bladders and pressure sensors are coupled to the insole. Each bladder has an adjustable compressibility, and each pressure sensor is configured to measure a pressure exerted on a respective portion of the foot. A controller of the system can perform, for each compressible bladder, a compressibility adjustment process including (i) receiving, from a respective pressure sensor associated with a respective bladder, a signal indicative of a pressure exerted on a respective portion of the foot, (ii) determining, based on the signal, that the pressure exerted on the respective portion of the foot exceeds a threshold pressure, and (iii) responsive to the determination, adjusting the compressibility of the respective bladder, thereby offloading pressure from the respective portion of the foot to a different portion of the foot.

Variable stiffness apparatuses using an interconnected dual layer fluid-filled cell array. One example of the present apparatuses comprises: a substrate having a first side and a second side; and a plurality of structures coupled to the substrate, where each structure comprises: a flexible first portion having a first end, a second end, and a sidewall extending between the first end and the second end, the first portion defining a first chamber; and a second portion having a first end, a second end, and a sidewall extending between the first end and the second end, the second portion defining a second chamber in fluid communication with the first chamber; where each of the plurality of structures is coupled to the substrate such that the first portion is disposed on the first side of the substrate, and the second chamber is disposed on the first side or the second side of the substrate.

Variable stiffness apparatuses using an interconnected dual layer fluid-filled cell array. One example of the present apparatuses comprises: a substrate having a first side and a second side; and a plurality of structures coupled to the substrate, where each structure comprises: a flexible first portion having a first end, a second end, and a sidewall extending between the first end and the second end, the first portion defining a first chamber; and a second portion having a first end, a second end, and a sidewall extending between the first end and the second end, the second portion defining a second chamber in fluid communication with the first chamber; where each of the plurality of structures is coupled to the substrate such that the first portion is disposed on the first side of the substrate, and the second chamber is disposed on the first side or the second side of the substrate.

An article of footwear comprises a sole structure having a cushioning component defining an enclosed, fluid-filled chamber. The cushioning component has a top wall, a bottom wall, a medial side wall at a medial side of the article of footwear, and a lateral side wall at a lateral side of the article of footwear. The cushioning component includes a unitary outsole having a bottom portion, a medial side portion, and a lateral side portion. The bottom portion is bonded to the bottom wall, the medial side portion is bonded to the medial side wall, and the lateral side portion is bonded to the lateral side wall. A method of manufacturing includes disposing the first and second polymer sheets and the outsole in a mold assembly and thermally bonding the outsole to the second polymer sheet, and the first and second polymer sheets to one another to form a chamber.