A method for manufacturing a recycled carbon fiber underlay, which mixes recycled carbon fiber material with nylon or composite plastic and forms an elastic recycled carbon fiber injection particle material, and under an injection process condition, the recycled carbon fiber injection particle material is injected and molded into a recycled carbon fiber underlay. The recycled carbon fiber arch insole comprises a recycled carbon fiber underlay manufactured by the aforementioned manufacturing method, together with the data of podiatric medical big numeric database of human factors engineering for the innovative design of mechanical insole products and the application development of recycled materials to encourage recycling to reduce carbon emissions, while improving the function, durability, and comfort of insole inserts.

The present invention relates generally to a device for supporting the foot and more particularly to a device for relieving pressure from specific areas of the foot, and for relaxing and shortening the musculatures of the foot by raising the arch. Through specific shapes and materials, the design intends to aid in alignment, add comfort, and prevent and relieve many foot problems and other lower extremity ailments. The device is uniquely designed to sit in the midfoot region of an article of footwear to relieve pressure from the heel and forefoot, redistribute pressure more evenly across the foot, and support the foot arches. The device may be constructed from flexible material which allows the orthotic to form to the shape of the shoe it is placed in. The medial wing portion of the orthotic device may utilize the medial wall of a shoe to increase arch support.

A method and apparatus for generating a custom made orthotic or insole for footwear. Information relating to the pressure applied by the sole of a person's foot is used to custom produce an orthotic or insole for the person by using softer material or different structural components, selectively located at pressure points of a particular individual, to unload pressure on the foot at those points. Pressure readings taken for the foot of an individual identify pressure points for that foot. The pressure points are quantified and the foot is mapped in a grid format on a pressure map. Once mapped, structural components corresponding to a particular pressure value are positioned in the orthotic based on the mapping.

A sole board for an article of footwear includes a plate that has a forefoot region, a midfoot region, and a heel region. The sole board includes a channel disposed in a top surface of the plate in the forefoot region. The channel extends from a lateral edge of the plate to a medial edge of the plate. A characteristic of the channel at the lateral and medial edges of the plate is different than the characteristic of the channel at a middle of the channel.

An insole with heat generating system is disclosed, which comprises an insole, a piezoelectric module disposed inside the insole and electrically connected with each other to form an electrical circuit, two flexible conductive strips having a first conductive copper piece and a second conductive copper piece disposed thereon, and at least one resistive heating chip. Wherein the piezoelectric module generates the electrical energy through stepping on the insole, and then turns into the heat energy through the resistive heating chip, thereby generating a temperature for the insole, so the insole with heat generating system can adjust the temperature appropriately, its safety is high, most importantly, the invention does not need to add the battery to generate heat.

An insole for a shoe, in particular for a sports shoe, having a first sole section with a standing surface for a user's foot. The first sole section extends vertically over a specified first height when the insole is used as intended. At least two second sole sections are arranged below the first sole section. A second sole section is arranged in a front section of the insole and a second sole section is arranged in a rear section of the insole viewed from the sole longitudinal direction. The two second sole sections extend over a specified second height in the vertical direction when the insole is used as intended and at least one elastic element connects the two second sole sections, each of the two ends of the elastic element engaging with a respective second sole section within the extent of the second height.

The present invention relates to a polymeric foam, and a process for making the polymeric foam comprising the steps of a) providing a monomeric solution consisting of a polymerizable, ethylenically unsaturated monomer containing one or more acid groups, water and one or more crosslinkers having more than one polymerizable group per molecule; b) introducing a blowing agent to the monomer solution; c) treating the monomer solution with an ultrasonic treatment; d) introducing one or more initiation agents to the monomer solution; and e) polymerizing the monomer solution.

An orthotic device for treatment of plantar fasciitis in a foot includes a shoe insole having a first longitudinal side and an opposing second longitudinal side, and a first end and an opposing second end. The shoe insole has a shape and size to be positioned within a shoe. The orthotic device also includes a massaging device carried by the shoe insole, where the massaging device is configured to be positioned on the shoe insole to be directly under a plantar fascia of the foot. In addition, the massaging device comprises a dome shape extending away from a surface of the shoe insole, and the massaging device abuts the first longitudinal side.

A sole includes a sole body supporting an entire planta of a wearer, lower protrusions protruding downward from a lower portion of the sole body toward the ground and spaced from each other, and upper protrusions protruding upward from an upper portion of the sole body toward a planta of a wearer, each of the upper protrusions being on the sole body and overlapping with an associated one of the lower protrusions. Each of the lower protrusions has, at its lower portion, a first region which makes contact with the ground, and each of the upper protrusions has, at its upper portion, a second region which makes contact with the planta of the wearer and is smaller than the first region.

A mold includes a seat, a plurality of guiding tracks, a plurality of positioning grooves, a plurality of telescopic rods, a plurality of elastic members, at least one sliding device and an insole material. The guiding tracks are disposed on the seat. The positioning grooves are disposed on the seat and are corresponding to the guiding tracks, respectively. The telescopic rods include a plurality of abutting portions, respectively. The elastic members are disposed in the seat for applying a plurality of restoring forces to the telescopic rods, respectively. The sliding member is movable along the track to press the abutting portions, and the abutting portions are connected tightly to each other so as to position the telescopic rods. The insole material is disposed below the telescopic rods for molding an insole.