WO2016191562A2 - Semelle intérieure de chaussure à support profilé - Google Patents

Semelle intérieure de chaussure à support profilé Download PDF

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Publication number
WO2016191562A2
WO2016191562A2 PCT/US2016/034346 US2016034346W WO2016191562A2 WO 2016191562 A2 WO2016191562 A2 WO 2016191562A2 US 2016034346 W US2016034346 W US 2016034346W WO 2016191562 A2 WO2016191562 A2 WO 2016191562A2
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WO
WIPO (PCT)
Prior art keywords
insole
heel
base layer
pad
area
Prior art date
Application number
PCT/US2016/034346
Other languages
English (en)
Other versions
WO2016191562A3 (fr
Inventor
David Bradley Granger
Jacob Martinez
Original Assignee
Spenco Medical Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Spenco Medical Corporation filed Critical Spenco Medical Corporation
Publication of WO2016191562A2 publication Critical patent/WO2016191562A2/fr
Publication of WO2016191562A3 publication Critical patent/WO2016191562A3/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
    • A43B7/144—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the heel, i.e. the calcaneus bone
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B1/00—Footwear characterised by the material
    • A43B1/0009—Footwear characterised by the material made at least partially of alveolar or honeycomb material
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/38—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process
    • A43B13/41—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process combined with heel stiffener, toe stiffener, or shank stiffener
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/02—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient
    • A43B17/026—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient filled with a non-compressible fluid, e.g. gel, water
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/22—Supports for the shank or arch of the uppers
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/0036—Footwear characterised by the shape or the use characterised by a special shape or design
    • A43B3/0063—U-shaped
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/141—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form having an anatomical or curved form
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
    • A43B7/142—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the medial arch, i.e. under the navicular or cuneiform bones
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
    • A43B7/143—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the lateral arch, i.e. the cuboid bone
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
    • A43B7/1445—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the midfoot, i.e. the second, third or fourth metatarsal
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
    • A43B7/145—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the toes, i.e. the phalanges
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1475—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the type of support
    • A43B7/148—Recesses or holes filled with supports or pads

Definitions

  • the present invention relates in general to an improved shoe insole and more particularly to an insole providing improved cushioning and support to the foot of a wearer.
  • Insoles are inserted in the shoes of a user to provide one or more advantages to the comfort of the wearer or the support of the foot. Insoles are generally sold in pairs and one of each pair is adapted for use in a right shoe and the other adapted for use in a left shoe of a user. It is advantageous to provide appropriate structure to an insole so that it serves the purposes of the user.
  • the human foot is a very complex biological mechanism.
  • the load on the foot at heel strike is typically about one and a half times a person's body weight when a person walks. When running or carrying extra weight, such as a backpack, loads on the foot can exceed three times the body weight.
  • the many bones, muscles, ligaments, and tendons of the foot function to absorb and dissipate the forces of impact, carry the weight of the body and other loads, and provide forces for propulsion.
  • Properly designed shoe insoles can assist the foot in performing these functions and protect the foot from injury.
  • Insoles may be custom made to address the specific needs of an individual. They may be made based on casts of the end user's foot or may be made of a thermoplastic material that is molded to the contours of the end user's foot. Like most custom made items, custom insoles tend to be expensive because of the low volume and extensive time needed to make and fit them properly. As such, it is not practical to make such custom made insoles for the general public.
  • an insole To be practical for distribution to the general public, an insole must be able to provide benefit to the user without requiring individualized adjustment and fitting.
  • a first type of insole commonly available over-the-counter emphasizes cushioning the foot so as to maximize shock absorption.
  • cushioning insoles perform adequately while engaged in light to moderate activities, such as walking or running. That is, a cushioning insole provides sufficient cushioning and support for such activities.
  • a typical cushioning insole will not be adequate. Under such conditions, a cushioning insole by itself would not provide enough support and control, and tends to bottom out during use by fully compressing the cushioning insole.
  • FIG. 1 Another type of over-the-counter insole emphasizes control.
  • such insoles are made to be relatively stiff and rigid so as to control the bending and twisting of the foot by limiting foot motion.
  • the rigid structure is good at controlling motion, but is not very forgiving.
  • the load on the foot tends to change abruptly and increases the load on the structures of the foot.
  • biological tissues such as tendons and ligaments are sensitive to the rate at which they are loaded, the abrupt change in load causes injury or damage to the foot, ankle or leg.
  • an insole that provides improved cushioning, support, and control and is practical for use by the general public.
  • the above, and other objects and advantages of the present invention are provided by an insole that provides improved motion control, support and cushioning.
  • the insole includes a system of interacting components that cooperate to achieve a desired combination of foot cushioning, support and motion control.
  • the present invention is an insole having a top sheet, a base layer, a forefoot pad, a heel cushion, support cushion, and a strength layer inserted between those components to strengthen and enhance the durability of the insole.
  • the forefoot pad can be made of a blown EVA or other material
  • the heel cushion can be made of a clear TPR, soft polyurethane or blown EVA.
  • the support cushion has a raised arch with longitudinal curvilinear indentations, a flattened midfoot area with a metatarsal mid-foot tear-drop raised area and longitudinal ridges on the flat midfoot area.
  • a heel cup surrounds the exterior back of the heel, and a heel pod opening goes through the entirety of the thickness of base layer of the insole body for placement of the heel pad so the heel pad is affixed to the bottom surface of the base layer.
  • the shoe insole 100 has a bottom surface formed of three pieces including: (1) a base layer extending from heel-to- toe, (2) a forefoot pad positioned in a forefoot/toe indentation on a forefoot base area of the insole, and, (3) a midfoot to heel support cushion made of a soft polyurethane positioned in a midfoot to heel indentation.
  • a strength layer composed of a woven fabric, a composite material or an enhanced fabric is also inserted between those components to strengthen and enhance the durability of the insole.
  • the forefoot pad and the midfoot/heel support cushion are secured adjacent to one another on the bottom surface of the base layer.
  • the base bottom surface has indentations dimensioned to receive cushioning pads.
  • the base bottom surface has cushions and pads molded into the base bottom surface.
  • a thin layer of nylon fabric may be positioned in the forefoot pad indentation between the forefoot pad and the material of the base bottom surface to increase the adhesion of the forefoot pad to the base material when the forefoot pad and base bottom surface are made of differing materials.
  • the insole has a top sheet layer that extends from heel to toe over the top surface of the base layer.
  • the forefoot pad has a diamond cube shaped groove pattern on its bottom surface to improve forefoot cushioning characteristics, and improve traction and adhesion of the insole inside and along the interior bottom surface of the user's shoe.
  • the forefoot pad has a honeycomb-shaped pattern.
  • the forefoot pad has a texturized un-patterned surface.
  • the midfoot/heel cushion has a raised arch in the medial arch area and longitudinal curvilinear indentations positioned along a major angle compared to the longitudinal axis of the insole, with the longitudinal axis extending from heel-to-toe on the insole.
  • the midfoot/heel cushion also possesses a flattened midfoot area on the midfoot area with a square grid partem and a metatarsal midfoot tear-drop raised area positioned in a metatarsal tear-drop aperture of the midfoot to heel support cushion.
  • the flattened area on the midfoot area of the midfoot/heel cushion is bordered on the medial side by a medial side longitudinal ridge, on the lateral side by a lateral side longitudinal ridge, and around the exterior of the heel pod opening by a heel ridge.
  • the midfoot/heel cushion also has a heel cup that supports the exterior back of the user's heel with the heel cup and extends to the raised arch area.
  • the heel pod opening extends through the entirety of the thickness of the midfoot/heel support cushion to position the heel pad on the bottom surface of the base layer.
  • the heel pod opening is surrounded by opening border grooves, which surround the circumference of the heel pod opening.
  • the heel pad is located on the bottom surface of the insole and is made of a clear TPR gel, blown EVA or other suitable material and extends through the full depth of the heel pod opening and is attached to the bottom surface of the base layer.
  • the heel pad has a diamond shaped groove pattern, but can be have a flat un- patterned surface.
  • a shoe insole with a base layer made of lightweight materials such as low density polyurethane memory foam, ethylene glycol polyurethane, ethylene vinyl acetate (EVA), pre-blown EVA, polyurethane (PU), or thermoplastic rubber (TPR) or other suitable material with hardness of the molded base material ranging from less than 10 Asker ⁇ 3 to greater than 30 Asker ⁇ 3 extending the length and width of the insole curving up in the medial arch area to form an arch support area and curving around the heel area to form a heel cup on the foot contact surface.
  • EVA ethylene glycol polyurethane
  • PU ethylene vinyl acetate
  • TPR thermoplastic rubber
  • a raised arch on the support cushion is located in the medial arch area with integrally formed longitudinal curvilinear indentations situated lengthwise, integrally formed raised gripping ridges in the medial arch area on the bottom surface; and, a teardrop shaped indentation is located in the metatarsal area of the midfoot which curves upwardly (concave) from the bottom of the base bottom (shoe contact) surface and forms a collapsible metatarsal support which is convex on the top (foot contact) side of the base layer.
  • the forefoot pad can be made of clear TPR gel (thermoplastic rubber), where said TPR gel has a hardness rating of 10-20 Asker ⁇ 3.
  • the forefoot pad can be made of molded pre-blown ethylene vinyl acetate (EVA), polyurethane (PU), or thermoplastic rubber (TPR) or other suitable material, so that it extends from the toe end of the insole to the midfoot area and from the medial side to the lateral side of the forefoot area with a hardness of approximately 10-30 Asker C ⁇ 3.
  • EVA ethylene vinyl acetate
  • PU polyurethane
  • TPR thermoplastic rubber
  • the pattern spacing is about 1 mm, groove depth of approximately 1 mm, and a thickness of the forefoot pad of about 1.5 mm ⁇ 0.5 mm.
  • the forefoot pad is molded into the PU insole base distal to the separating wall on the base bottom surface with a knitted fabric layer secured between the forefoot pad and the PU base material.
  • a heel pad on the bottom surface of the insole is made of clear TPR (thermoplastic rubber) or pre-blown ethylene vinyl acetate (EVA), molded of EVA, polyurethane (PU), or other suitable material with a hardness of approximately 10-35 Asker C ⁇ 3, a thickness of approximately 3.0 mm ⁇ 0.5 mm, or alternatively, integrally formed in the material of the base bottom surface of the insole.
  • TPR thermoplastic rubber
  • EVA ethylene vinyl acetate
  • PU polyurethane
  • the heel pad can have a modified oval shape that is wider on the proximal end of the heel pad and narrows on the distal end of the heel pad with a diamond-cube partem molded in the EVA having pattern spacing of about 1 mm, with groove depth of approximately 1 mm, and a thickness of the heel pad of about 1.5 mm ⁇ 0.5 mm.
  • This heel pad is secured on the bottom surface of the base layer.
  • the heel pad has a honeycomb-shaped pattern.
  • the heel pad has a texturized un-patterned surface, and a thin layer of nylon fabric may be positioned in the heel pad indentation between the heel pad and the material of the base bottom surface to increase the adhesion of the heel pad to the base material when the heel pad and base bottom surface are made of differing materials.
  • a supersoft metatarsal dome shaped like a teardrop is located on the top (foot contact) midfoot surface of the insole which would normally be located below the foot metatarsal bones. And, a top sheet of polyester covers the entire foot contact surface of the insole which is treated with an antimicrobial agent.
  • the heel pad is surrounded by a flat midfoot/heel surface and cupped along the back by a heel cup, nylon fabric between forefoot/heel pads and base (for adhesion of pads to PU), a medial arch that has raised and indented curvilinear lines extending longitudinally along arch with vent holes, a groove depth on bottom 0.50 mm- 1.5 mm, a top cloth made of 65% Nylon/ 35% polyester, a teardrop metatarsal dome on the top side is integrally formed as an upwardly-curved indentation from bottom surface, a diamond-shaped groove pattern on the forefoot pad and the heel pad, and a separation wall added between base and forefoot pad of approximately 1 mm.
  • a cushioning core or base is combined with a relatively stiff support cushion and a number of other pads to form an insole that provides greater cushioning, stability, and control than was conventionally known in the state of the art.
  • the pads can have a different firmness than the base or the support cushion.
  • the pads and support cushion assist with prevention of supination, and the supplemental heel pad assists with the prevention of pronation.
  • the current invention is an insole that provides a balanced approach to improving longitudinal arch support, prevention of pronation and prevention of supination by incorporation of the combination of the above elements.
  • the characteristics of the components, their size and shape, and their position are selected to provide a desired blend of improved cushioning and control, and more specifically to achieve a desired biomechanical function.
  • the size and compression characteristics of the pads can be adjusted to address issues of over/under pronation, over/under supination, and other problems related to foot motion, including altering the size, shape, and material properties of the pads.
  • the firmness of the pads and support cushion can be adjusted to address issues of over/under pronation, over/under supination, and other problems related to foot motion by altering the size, shape, and material properties of the pads.
  • the present invention accomplishes the goals to: (1) improve ankle and foot stability, (2) cushion the heel and forefoot during push-offs and landings, (3) help prevent over pronation and over supination conditions, and (4) provide enhanced cushioning features to the heel, midfoot, arch and forefoot areas.
  • the components of an insole are permanently affixed to each other to create an insole designed for an intended type or category of activity. Many different insole designs can be made to address a broad range of different activities.
  • FIG. 1A and 1C are a bottom perspective view of an illustrative embodiment of an insole in accordance with the principles of the present invention.
  • FIG. IB is a exploded perspective view of an illustrative embodiment of an insole in accordance with the principles of the present invention.
  • FIG. 2A and 2B are bottom planar views showing the base of the insole
  • FIG. 3A and 3B are top (dorsal) views of the insole
  • FIG. 4 is a medial (inner arch area) side view of the insole;
  • FIG. 5A and 5B are lateral (outer) side views of the insole;
  • FIG. 6A and 6B are front (proximal) views of the insole; and, [0034] FIG. 7A and 7B are rear (proximal) views of the insole.
  • FIG. 1A, IB, 1C, 2A and 2B are perspective and bottom views of the bottom surface (shoe side) of an insole 100 according to the invention.
  • the insole 100 extends from a heel end (proximal) to a toe end (distal) and has a medial border or side on the arch side of the foot, connecting said toe end to said heel end along the arch side of the insole and a lateral border or side on the other side (opposite side from medial side) thereof, connecting said toe end to said heel end on the other side of the insole.
  • Figures 1A, IB and 2A show the heel pad 118 with a diamond shaped groove pattern 120
  • Figures 1C and 2B show the same insole designs with an unpatterned surface 120 on heel pad 118.
  • the insole 100 surface is generally foot-shaped extending longitudinally along an axis from the toe end to the heel end and from the medial side to the lateral side of the insole.
  • the base layer 102 surface has indentations dimensioned to receive cushioning pads.
  • the base bottom surface has cushioning pads molded into the base bottom surface.
  • the invention possesses a base layer 102, a support cushion 105 and a forefoot pad 107 that can be made of molded or lightweight materials such as low density polyurethane memory foam, ethylene glycol polyurethane, ethylene vinyl acetate (EVA), pre-blown EVA, polyurethane (PU), or thermoplastic rubber (TPR) or other suitable material.
  • low density polyurethane memory foam such as ethylene glycol polyurethane, ethylene vinyl acetate (EVA), pre-blown EVA, polyurethane (PU), or thermoplastic rubber (TPR) or other suitable material.
  • EVA ethylene glycol polyurethane
  • PU ethylene vinyl acetate
  • TPR thermoplastic rubber
  • Hardness of the molded base material can range from less than 10 Asker ⁇ 3 to greater than 30 Asker ⁇ 3.
  • the insole 100 encompasses support and cushioning features for the following functional areas: forefoot cushioning area; medial arch support area, metatarsal support area, and a heel cushioning area.
  • the base layer 102 has a forefoot pad indentation 102B in the forefoot area dimensioned to receive a forefoot pad 107, and/or a support cushion indentation area 102A in the midfoot-to-heel area dimensional to receive the support cushion 105.
  • the forefoot pad 107 and the support cushion 105, as well as the heel pad 118 are molded directly onto the base layer 102.
  • the present invention is an insole having a top sheet 128, a base layer 102, a forefoot pad 107, a heel pad 118, support cushion 105, and a strength layer 103 inserted between those components to strengthen and enhance the durability of the insole.
  • the forefoot pad 107 can be made a blown EVA or other material
  • the heel cushion can be made of a clear TPR, soft polyurethane or blown EVA.
  • the support cushion 105 has a raised arch 119 with longitudinal curvilinear indentations 132, a flattened midfoot area 148 with a metatarsal mid-foot tear-drop raised area 134 and longitudinal ridges on the flat midfoot area 142, 143, and a heel ridge 152 surrounding the heel pad 118 on the bottom surface of the support cushion 105.
  • a heel cup 104 surrounds the exterior back of the heel, and a heel pod opening 1 12 goes through the entirety of the thickness of base layer 102 of the insole 100 for placement of the heel pad 1 18 so the heel pad 1 18 is affixed to the bottom surface of the base layer 102.
  • There is a supersoft metatarsal raised dome 134 on the top (foot contact) surface of the insole 100 which would be directly above the metatarsal midfoot area.
  • the shoe insole 100 has a bottom surface formed of three pieces including: (1) a base layer 102 extending from heel- to-toe, (2) a forefoot pad 107 positioned in a forefoot/toe indentation on a forefoot base area of the insole 100, and, (3) a midfoot-to-heel support cushion 105 made of a soft polyurethane positioned in a midfoot to heel indentation 102B.
  • a strength layer 103 is positioned above the base layer 102, or alternatively, positioned between the base layer 102 and the forefoot pad 107 and/or support cushion 105, and it is composed of a woven fabric, a composite material or a fortified or enhanced fabric is also inserted between those components to strengthen and enhance the durability of the insole.
  • this strength layer 103 can be made of knitted or woven high-strength fabric secured to the top surface of the EVA base material, but this strength layer 103 should be made of material that retains its shape upon use without significant shrinkage or deformation from heat or pressure of normal use.
  • the strength layer 103 may extend from heel-to-toe across the entire surface of the insole 100, or alternatively, may only extend across the heel area, the heel to mid-foot area, or the forefoot to toe area.
  • the forefoot pad 107 and the midfoot/heel support cushion 105 are secured adjacent to one another on the bottom surface of the base layer 102.
  • the base bottom surface has indentations 102A, 102B dimensioned to receive cushioning pads 105, 107.
  • the bottom surface of the base layer 102 has cushions 105 and pads 107 molded into the base bottom surface.
  • a thin layer of nylon fabric may also be positioned in the forefoot pad indentation 102B between the forefoot pad and the material of the base bottom surface to increase the adhesion of the forefoot pad 107 to the base layer 102 material when the forefoot pad 107 and base layer 102 bottom surface are made of differing materials.
  • a thin fabric can also be positioned in a similar manner between the support cushion 105 and the base layer 102 in the support cushion indentation 102 A.
  • the insole 100 has a top sheet 128 that extends from heel to toe over the top surface of the base layer 102, or alternatively, over the strength layer 103 (which may be placed above or below the base layer 102).
  • a metatarsal dome 134 raised on the top surface of the insole, which respectively improves the cushioning characteristics of the insole at or near high impact points on the insole.
  • the forefoot pad 107 has a diamond cube groove pattern 117 on its bottom surface to improve forefoot cushioning characteristics, and improve traction and adhesion of the insole inside and along the interior bottom surface of the user's shoe.
  • the forefoot pad 107 has a honeycomb-shaped partem 117.
  • the forefoot pad 107 has a texturized un-patterned surface 117.
  • the midfoot/heel cushion 105 has a raised arch 119 in the medial arch area and longitudinal curvilinear indentations 132 positioned along a major angle compared to the longitudinal axis of the insole, with the longitudinal axis extending from heel-to-toe on the insole.
  • the midfoot/heel cushion 105 also possesses a flattened midfoot area 148 on the midfoot area with a square grid pattern and a metatarsal midfoot tear-drop raised area 134 positioned in a metatarsal tear-drop aperture of the midfoot-to-heel support cushion 105.
  • the flattened area 148 on the midfoot area of the midfoot/heel cushion 105 is bordered on the medial side by a medial side longitudinal ridge 143, on the lateral side by a lateral side longitudinal ridge 142, and around the exterior of the heel pod opening by a heel ridge 152.
  • the midfoot/heel cushion 105 also has a surrounding heel cup 104 that supports the exterior back of the user's heel with the heel cup and extends to the raised arch area 119.
  • the heel pod opening 112 extends through the entirety of the thickness of the midfoot/heel support cushion 105 to position the heel pad 118 on the bottom surface of the base layer 102.
  • the heel pod opening 112 is surrounded by opening border grooves 138, which surrounds the circumference of the heel pod opening 112.
  • the heel pad 118 is located on the bottom surface of the insole 100 and is made of a clear TPR gel, blown EVA or other suitable material and extends through the full depth of the heel pod opening 112 and is attached to the bottom surface of the base layer 102.
  • the heel pad 118 has a diamond shaped groove pattern 120, but can be have a flat un-patterned surface 120.
  • Figures 1 A, IB and 2A show the heel pad 118 with a diamond shaped groove pattern 120
  • Figures 1C and 2B show the same insole designs with an unpatterned surface 120 on heel pad 118.
  • EVA ethylene glycol polyurethane
  • PU ethylene vinyl acetate
  • TPR thermoplastic rubber
  • a raised arch 119 on the support cushion 105 is located in the medial arch 119 with integrally formed longitudinal curvilinear indentations 132 situated lengthwise, integrally formed with raised gripping ridges in the medial arch 119 on the support cushion 105; and, a teardrop shaped indentation 134 is located in the metatarsal area of the midfoot which curves upwardly (concave) from the bottom of the insole 100 (shoe contact) and forms a collapsible metatarsal support which is convex on the top (foot contact) of the insole 100.
  • the forefoot pad 107 can be made of clear TPR gel (thermoplastic rubber), where said TPR gel has a hardness rating of 10-20 Asker ⁇ 3.
  • the forefoot pad 107 can be made of molded pre-blown ethylene vinyl acetate (EVA), polyurethane (PU), or thermoplastic rubber (TPR) or other suitable material, so that it extends from the toe end of the insole to the midfoot area and from the medial side to the lateral side of the forefoot area with a hardness of approximately 10-30 Asker C ⁇ 3.
  • EVA ethylene vinyl acetate
  • PU polyurethane
  • TPR thermoplastic rubber
  • the forefoot pad 107 has a patterned surface 117, it has a pattern spacing of about 1 mm, groove depth of approximately 1 mm, and a thickness of the forefoot pad of about 1.5 mm ⁇ 0.5 mm.
  • the forefoot pad 107 can also be molded into the PU insole base distal to the separation wall 151 on the base layer 102 with a knitted fabric layer secured between the forefoot pad 107 and the base layer 102.
  • a heel pad 118 on the bottom surface of the insole 100 is made of clear TPR (thermoplastic rubber) or pre-blown ethylene vinyl acetate (EVA), molded of EVA, polyurethane (PU), or other suitable material with a hardness of approximately 10-35 Asker C ⁇ 3, a thickness of approximately 3.0 mm ⁇ 0.5 mm, or alternatively, integrally formed in the material of the base bottom surface of the insole 100.
  • TPR thermoplastic rubber
  • EVA ethylene vinyl acetate
  • PU polyurethane
  • the heel pad 118 can have a modified oval shape that is wider on the proximal end of the heel pad and narrows on the distal end of the heel pad with a diamond-shaped groove pattern 120 molded in the EVA having pattern spacing of about 1 mm, with groove depth of approximately 1 mm, and a thickness of the heel pad of about 1.5 mm ⁇ 0.5 mm.
  • the heel pad 118 has a honeycomb-shaped partem 120.
  • the heel pad 118 has a texturized un-patterned surface 120.
  • a thin layer of nylon fabric may be positioned in the heel pad indentation 102B between the heel pad 118 and the material of the base layer 102 to increase the adhesion of the heel pad to the base material when the heel pad 118 and base layer 102 are made of differing materials.
  • a supersoft metatarsal dome 134 shaped like a teardrop is located on the top (foot contact) midfoot surface of the insole 100 which would normally be located below the foot metatarsal bones.
  • a top sheet 128 of polyester covers the entire foot contact surface of the insole which is treated with an antimicrobial agent.
  • the heel pad 118 is surrounded by a flat midfoot/heel surface 148 and cupped along the back by a heel cup 104.
  • Nylon fabric can be placed between support cushion 105 or forefoot pad 107 and the base layer 102 (for adhesion of pads to PU).
  • a medial arch 119 has raised and indented curvilinear lines 132 extending longitudinally along arch with vent holes, and the grooves on the flat area 148 of the support cushion 105 have a groove depth on bottom of approximately 0.50 mm-1.5 mm.
  • the top sheet 128 can be made of 65% Nylon/ 35% polyester, and a teardrop metatarsal dome 134 on the top side of the insole 100 is integrally formed as an upwardly-curved indentation.
  • the separation wall 151 added between base and forefoot pad is approximately 1 mm in height.
  • the forefoot pad 107 is made of a clear TPR (thermoplastic rubber) gel which extends from the toe end of the insole to the lateral midfoot/arch area from the medial side to the lateral side of the forefoot area with a diamond-shaped groove pattern 1 17 molded in the gel having partem spacing of about 1 mm and a depth of about 1.5 mm.
  • the forefoot pad 107 is preferably made of clear TPR gel (thermoplastic rubber - hardness 20 Asker ⁇ 3) (pattern spacing 1.0mm- 1.50mm).
  • the firmness of the forefoot pad 107 can be adjusted to address issues of over/under pronation, over/under supination, and other problems related to foot motion by altering the size, shape, and material properties of the pads.
  • the present invention is a shoe insole having a base bottom (shoe contact) surface with cushioning and supporting elements in the arch, metatarsal, forefoot and heel areas, and a top (foot contact) surface with cushioning and supporting elements in the heel and metatarsal areas.
  • the shoe insole fits securely in the bottom of a user's shoe to provide support and cushioning to the user's foot.
  • the base layer 102 extends the length and width of the insole curving up in the medial arch area to form an arch support 119 and curving around the heel area to form a heel cup 104 on the foot contact surface, with a separating wall 151 between the forefoot pad indentation 102B on the bottom surface and the midfoot-to-heel support cushion indentation 102A under the calcaneal (heel) area on the bottom layer 102B; a raised arch 1 19 in the medial arch area with integrally formed longitudinal curvilinear indentations 132 situated lengthwise, the curvilinear indentations 132 integrally forming raised gripping ridges in the medial arch 1 19 on the bottom surface of the support cushion 105; and a teardrop shaped metatarsal indentation 134 on the bottom surface of the insole 100 that curves upwardly (concave) from the bottom of the base layer 102 (shoe contact) surface and forms a collapsible metatarsal support having
  • a forefoot pad 107 extends from the toe end of the insole 100 to the midfoot area and from the medial side to the lateral side of the forefoot area with a diamond-shaped groove pattern 117 having pattern spacing of about 1 mm and a depth of about 1.5 mm.
  • the forefoot pad 107 can be molded into the PU insole base distal to the separating wall on the base bottom surface with a knitted fabric layer secured between the forefoot pad and the base layer 102 material.
  • This insole 100 also has: (1) a heel pad 1 18 on the bottom surface of the insole made of pre-blown EVA, polyurethane (PU), or thermoplastic rubber (TPR) or other suitable material with a hardness of approximately 10-35 Asker C ⁇ 3 having a modified oval shape that is wider on the proximal end of the heel pad and narrows on the distal end of the heel pad with a diamond-shaped groove pattern molded in the EVA having pattern spacing of about 1 mm and a depth of about 1.5 mm and which is secured in the heel pad indentation of the base bottom surface; (2) a soft metatarsal dome 134 on the top (foot contact) surface providing cushioning directly over the metatarsal area of the foot (shown in Figures 3A, 3B, 6A and 6B); and, (3) a top sheet 128 of polyester covering the entire foot contact surface of the insole 100 which is treated with an antimicrobial agent (shown in Figures 3A and 3B).
  • PU polyurethane
  • TPR thermoplastic rubber
  • the shoe insole 100 has a bottom surface formed of three pieces including: (1) a base layer 102 extending from heel- to-toe, (2) a forefoot pad 107 positioned in a forefoot/toe indentation on a forefoot base area of the insole 100, and, (3) a midfoot-to-heel support cushion 105 made of a soft
  • a strength layer 103 is positioned above the base layer 102, or alternatively, positioned between the base layer 102 and the forefoot pad 107 and/or support cushion 105, and it is composed of a woven fabric, a composite material or a fortified or enhanced fabric is also inserted between those components to strengthen and enhance the durability of the insole.
  • this strength layer 103 can be made of knitted or woven high-strength fabric secured to the top surface of the EVA base material, but this strength layer 103 should be made of material that retains its shape upon use without significant shrinkage or deformation from heat or pressure of normal use.
  • the strength layer 103 may extend from heel-to-toe across the entire surface of the insole 100, or alternatively, may only extend across the heel area, the heel to mid-foot area, or the forefoot to toe area.
  • the combination of the base layer 102, support cushion 105, strength layer 103, and a heel pad 1 18 specified herein provides a "degree” of medial longitudinal arch support, which provides a couple of degrees of improved pronation "control.”
  • a "degree” of medial longitudinal arch support is approximately 1 -2 degrees based on research evidence.
  • pronation "control” we mean the increase in supination moments acting around the j oints of the rearfoot and the decrease in the magnitude of pronation moments.
  • the current invention is an insole 100 that provides a balanced approach to improving longitudinal arch support, prevention of pronation and prevention of supination.
  • the insole 100 also has a forefoot area that correlates with the metatarsal area and near the phalanges of the foot located over the forefoot pad 107 of the insole 100, a raised arch support 1 19 along the medial arch side, a heel area just forward of the heel cup 104, and a midfoot area 106 between the heel area and forefoot area.
  • a user's right shoe and left shoe are mirror images of one another as are the insoles adapted to be inserted in a right shoe and a left shoe respectively. Only the left insole is illustrated in the Figures. It will be understood by those of skill in the art that the right insole has a mirror image construction of the left insole.
  • the base layer 102 has indentations 102A, 102B dimensioned to receive the support cushion 105 and forefoot pad 107, respectively.
  • the base layer 102 can have the support cushion 105 and/or the forefoot pad 107 molded directly onto the base layer 102.
  • the base layer 102 may be molded of lightweight materials such as low density polyurethane memory foam, ethylene glycol polyurethane, ethylene vinyl acetate (EVA), pre-blown EVA, polyurethane (PU), or thermoplastic rubber (TPR) or other suitable material. Hardness of the molded base layer 102 material can range from less than 10 Asker ⁇ 3 to greater than 30 Asker ⁇ 3.
  • the present invention is an insole that fits within the interior of a user's shoe, and rests on the interior bottom surface of that shoe with the user's foot being positioned over and on top of the insole.
  • the insole 100 shown in Figure 1A-1 C and 2A-2B has a bottom (shoe side) and a top (foot side) and the insole 100 comprises a base layer 102 having a contoured shape which receives and supports the foot of the user.
  • the insole 100 is intended to be used inside a shoe and the bottom side thereof will contact the interior of a shoe after insertion therein. In many cases, the insole 100 will be used to replace an insole that previously was used in the shoe.
  • the base layer 102 has a heel end, a toe end, a lateral side and a medial side, said sides extending approximately from said heel end to said toe end.
  • the lateral side lies adjacent the outer side of a user's foot in use and the medial side lies adjacent the inner side, or arch, of a user's foot in use, including the arch of the foot.
  • the contoured shape includes an integrally formed raised arch support 119 that extends generally upwardly on the medial side of the insole 100. This upward extension arch support 119 allows the raised arch support to lie adjacent to a user's foot arch during use in the shoe.
  • approximate dimensions are given for a men's size 9 insole.
  • Length and width of the insole are 28.1 cm (11.063 inches) and 9.7 cm (3.813 inches). The length and width will vary according to the shoe size for which the insole is intended.
  • the total thickness of the insole can range from 6.8 millimeters near the toe area to 12 millimeters in the arch area.
  • Arch height is about 15 millimeters.
  • the forefoot and heel cushions have a thickness of approximately 4.0 millimeters.
  • the preferred depth of the heel cup which is measured from the top side of the insole near the center of the heel area vertically to the top of the upraised heel area or heel raised edge is approximately 15-16 millimeters.
  • the base layer 102 has a base top surface and a base bottom surface.
  • the base layer 102 defines a heel cup 104 adjacent said heel end, a contoured arch support 119 adjacent to the arch on the medial side, a midfoot area 106 between said arch support 119 and the lateral midfoot area, and a forefoot area located between the metatarsal area to the toe end of the insole 100.
  • Base layer 102 is preferably made of foam or other material having suitable cushioning properties, including a fabric layer.
  • base layer 102 comprises an Ethylene vinyl acetate (“EVA”) foam, which is a copolymer of ethylene and vinyl acetate, a Thermoplastic Rubber (“TPR”)/EVA mix, or a blown EVA material.
  • EVA Ethylene vinyl acetate
  • TPR Thermoplastic Rubber
  • a preferred blown EVA, EVA or TPR/EVA mix has a durometer (hardness) of about Asker C 45-50. It is desirable to minimize the total weight of the insoles 100 by selection of materials that promote the structural features of the insole. It is desirable that the total weight of the preferred embodiment of the insole 100 (men's size 10/11) be about 4.0 ounces.
  • the base layer 102 may be formed from a gel material (e.g. TPR gel) or made of polyurethane polyester glycol with a hardness 30 Asker ⁇ 3, or alternatively, can be made of any durable nylon fabric.
  • the base layer 102 is covered by a top sheet 128 that extends across the top surface of the base layer 102 from heel to toe end, and creates a top surface of the insole 100.
  • the top sheet 128 is made of polyester or jadeite covering the entire foot contact surface of the insole, and is treated with an antimicrobial agent.
  • Top sheet 128 is typically made of a non- woven fabric layer with a low coefficient of friction so as to minimize the possibility of blisters, or preferably, top sheet 128 is made of a cooling fabric which contains a special low temperature jade obtained from a natural source.
  • the top sheet 128 bottom surface is secured to base layer 102 top surface and a top sheet 128 upper surface which contacts the foot of a user during use.
  • the top sheet 128 is oriented to engage the user's foot on the top surface of the insole, and it serves an upper cooling and ventilation function, and the top sheet 128 can be made of suitable materials, such as a jadeite top cloth material.
  • the top sheet 128 is made of a low-friction fabric which prevents blisters on the user's foot.
  • the top sheet 128 may also contain an antimicrobial treatment in order to keep bacteria from multiplying and therefore reduce odor.
  • a suitable treatment is Silpure ® antimicrobial treatment (Thomson Research Associates, Inc., Ontario, CA.).
  • the shoe insole 100 has a bottom surface formed of three pieces including: (1) a base layer 102 extending from heel-to-toe, (2) a forefoot pad layer 107 positioned in a forefoot pad indentation area 102 A on a forefoot area of the insole 100, and, (3) a midfoot-to-heel support cushion 105 made of a soft polyurethane positioned in a midfoot-to-heel indentation 102B.
  • the three-piece bottom surface construction makes fabrication easier than known methods, and allows for different combinations of materials and cushioning characteristics and support by adjusting the materials used in the forefoot pad 107, base layer 102, the midfoot-to-heel support cushion 105, and the heel pad 118.
  • the insole 100 has a base layer 102, which can be a polyurethane or fabric sheet, coupled to a midfoot-to-heel support cushion 105 made of low density polyurethane memory foam, ethylene glycol polyurethane, ethylene vinyl acetate (EVA), pre-blown EVA, polyurethane (PU), thermoplastic rubber (TPR) or other suitable material having a hardness of the molded base material ranging from less than 10 Asker ⁇ 3 to greater than 30 Asker ⁇ 3; a forefoot pad 107 made of lightweight materials such as low density polyurethane memory foam, ethylene glycol polyurethane, ethylene vinyl acetate (EVA), pre-blown EVA, polyurethane (PU), or thermoplastic rubber (TPR) or other suitable material (hardness 10-35 Asker ⁇ 3) (groove pattern 117 spacing 1.0mm- 1.50mm), a heel pad 118 made of pre-blown EVA, PU, or other suitable material (hardness 10-
  • the shoe insole 100 has a bottom surface formed of three pieces including: (1) a base layer 102 extending from heel- to-toe, (2) a forefoot pad 107 positioned in a forefoot/toe indentation on a forefoot base area of the insole 100, and, (3) a midfoot-to-heel support cushion 105 made of a soft polyurethane positioned in a midfoot to heel indentation 102B.
  • a strength layer 103 is positioned above the base layer 102, or alternatively, positioned between the base layer 102 and the forefoot pad 107 and/or support cushion 105, and it is composed of a woven fabric, a composite material or a fortified or enhanced fabric is also inserted between those components to strengthen and enhance the durability of the insole.
  • this strength layer 103 can be made of knitted or woven high-strength fabric secured to the top surface of the EVA base material, but this strength layer 103 should be made of material that retains its shape upon use without significant shrinkage or deformation from heat or pressure of normal use.
  • the strength layer 103 may extend from heel-to-toe across the entire surface of the insole 100, or alternatively, may only extend across the heel area, the heel to mid-foot area, or the forefoot to toe area.
  • the metatarsal support 134 is formed in a metatarsal support aperture 134A, which is integrally formed in the bottom surface of the support cushion 105 on the bottom surface of the insole and it has a concave surface oriented toward the bottom (shoe contact) surface and a convex surface oriented toward the top (foot contact) surface.
  • the metatarsal support 134 is positioned in the midfoot area of the insole 100 to provide cushioning and support in the area approximately under the second and third metatarsal bones.
  • the metatarsal support 134 is compressible with the convex top surface being compressed by foot pressure downward toward the concave portion of the base bottom surface allowing the support provided to vary with the pressure of the user's foot.
  • the metatarsal support 134 is teardrop shaped with the wider part of the shape oriented distally to the insole under the second and third metatarsal bones and the narrow part of the shape oriented proximally towards the tarsal bones.
  • the metatarsal support may have another shape, such as diamond, rectangle or other shape suitable for providing metatarsal support in the midfoot area of the insole.
  • the metatarsal support 134 is integrally formed in the material forming the base bottom surface of the insole 100 which is preferably molded of low density polyurethane memory foam, but may also be ethylene glycol polyurethane, ethylene vinyl acetate (EVA), pre-blown EVA, polyurethane (PU), thermoplastic rubber (TPR) or other suitable material. Hardness of the molded base material can range from less than 10 Asker ⁇ 3 to greater than 30 Asker ⁇ 3.
  • Forefoot pad 107 is shaped essentially the same as forefoot pad indentation area 102A and is secured therein.
  • Forefoot pad 107 has a medial edge, a lateral edge, a proximal (back) edge and a distal (front) edge.
  • the medial edge of forefoot pad 107 extends along a line spaced laterally from said medial border of said insole.
  • the proximal edge extends from said medial edge laterally and proximally to said rear apex, laterally and distally towards the 3 rd metatarsal head, then laterally and proximally to the lateral edge
  • the forefoot pad 107 generally extends from the proximal region of the metatarsal head area to the distal toe end of the insole and extends from the medial side to the lateral side of the insole. In one embodiment, the forefoot pad is secured within a forefoot pad 107 indentation 102A. The forefoot pad 107 has a thickness of approximately 1.5 mm ⁇ 0.5 mm. In another embodiment, the forefoot pad 107 is integrally formed in the material of the base layer 102 of the insole 100. The forefoot pad 107 is preferably molded of pre-blown ethylene vinyl acetate (EVA). The forefoot pad 107 may also be molded of EVA, polyurethane (PU), or thermoplastic rubber (TPR) or other suitable material.
  • EVA pre-blown ethylene vinyl acetate
  • the forefoot pad 107 may also be molded of EVA, polyurethane (PU), or thermoplastic rubber (TPR) or other suitable material.
  • the forefoot pad 107 has a diamond-cube pattern 117 on the forefoot pad 107 surface to provide traction, compressive cushioning and lateral movement support to the forefoot area.
  • the diamond cube pattern 117 has a depth of approximately 1.0 mm ⁇ 0.5 mm and has a surface pattern spacing of about 1.0 mm to about 1.5 mm.
  • the forefoot pad 107 has a honeycomb-shaped pattern 117.
  • the forefoot pad 107 has a texturized un-patterned surface 117.
  • a thin layer of nylon fabric may be positioned in the forefoot pad indentation 102A between the forefoot pad 107 and the material of the base layer 102 to increase the adhesion of the forefoot pad 107 to the base layer 102 when the forefoot pad 107 and base layer 102 are made of differing materials.
  • the forefoot pad 107 extends from the toe end of the insole to the lateral midfoot/arch area from the medial side to the lateral side of the forefoot area with a diamond-cube partem having pattern spacing of about 1 mm and a depth of about 1.5 mm.
  • the forefoot pad 107 made of molded of lightweight materials such as low density polyurethane memory foam, ethylene glycol polyurethane, ethylene vinyl acetate (EVA), pre-blown EVA, polyurethane (PU), or thermoplastic rubber (TPR) or other suitable material (hardness 10-35 Asker ⁇ 3) (pattern spacing 1.0mm- 1.50mm).
  • the firmness of the forefoot pad 107 can be adjusted to address issues of over/under pronation, over/under supination, and other problems related to foot motion by altering the size, shape, and material properties of the pads.
  • the configuration, material and position of the forefoot pad 107 provides cushioning and works in association with other items to stabilize the ankle.
  • the forefoot pads and heel pads are made of rubber or synthetic rubber, which includes being made of a neoprene synthetic rubber layer which is a polymer.
  • the lateral edge of the forefoot pad 107 connects said proximal edge to said top edge of said forefoot pad 107.
  • forefoot pad indentation area 102A and forefoot pad 107 underlie a portion of the big toe of a user's foot, and the "ball" of the foot, excluding the first metatarsal head or medial ball of the user's foot.
  • the forefoot pad 107 provides cushioning and energy return on landing from a vertical jump. It serves as a propulsion pad and support for the metatarsal heads of a user's foot, especially the 1 st and 2 nd metatarsal heads.
  • the forefoot pad 107 has a diamond shaped groove pattern 117 on its bottom surface to improve forefoot cushioning characteristics, which improves traction and adhesion of the insole inside and along the interior bottom surface of the user's shoe and improves durability and cushioning aspects of the forefoot pad over known materials.
  • the support cushion 105 is made of polyurethane polyester glycol (hardness 10-30 Asker ⁇ 3 - low density).
  • the support cushion indentation area 102B is located in the midfoot and heel areas of the bottom surface of the insole.
  • the midfoot-to-heel support cushion indentation area 102B extends from a medial edge approximate the medial border to a lateral edge approximate the lateral border of the base layer 102 and from a distal edge slightly proximal of the forefoot pad indentation area 102A to a proximal edge approximate the heel end 104 of the base.
  • a medial portion of the distal edge is shaped to accommodate downward motion of the 1 st metatarsal during toe off.
  • Support cushion 105 is shaped essentially the same as midfoot-to-heel support cushion indentation area 102B and has a base facing surface and a shoe facing surface. The base facing surface is secured to said midfoot-to-heel support cushion indentation area 102B.
  • the midfoot/heel support cushion 105 has a raised arch 119 in the medial arch area and curvilinear indentations 132 positioned along at least two or more major angles from the longitudinal axis, with the longitudinal axis extending from heel-to-toe on the insole 100.
  • Longitudinal curvilinear indentations 132 extend in a first angled direction compared to the longitudinal axis of the insole 100.
  • the first angled direction is measured compared to the major axis lengths of the longitudinal curvilinear indentations 132.
  • the first angled direction is approximately 5 degrees to 65 degrees compared to the longitudinal axis, which is the lengthwise axis extending from heel to toe on the insole 100.
  • the longitudinal curvilinear indentations 132 in the raised arch area 119 provide additional rigidity to the raised arch support, which improves support raised arch 119 in the support cushion 105. These indentations 132 in this formation also promote polyurethane material flow in the area of the midfoot while assisting to minimize voids caused by air entrapment. The curvilinear indentations 132 in the arch area also allow the arch area to collapse to fit the shoe thus providing a more accommodative design.
  • the midfoot/heel cushion 105 also possesses a flattened midfoot area 148 on the bottom surface of the insole 100 in midfoot area 106 and a metatarsal midfoot tear-drop raised area 134 positioned in a metatarsal tear-drop aperture 134A (e.g. metatarsal opening 134 A) of the midfoot to heel support cushion 105.
  • a metatarsal midfoot tear-drop raised area 134 positioned in a metatarsal tear-drop aperture 134A (e.g. metatarsal opening 134 A) of the midfoot to heel support cushion 105.
  • the flattened midfoot area 148 on the bottom surface of the insole 100 in the midfoot area 106 of the midfoot/heel cushion 105 has a square groove pattern and is bordered on the medial side by a medial side longitudinal ridge 142 extending from midfoot to heel, on the lateral side by a lateral side longitudinal ridge 143 extending midfoot to heel, and around the exterior of the heel pod opening 1 12 by a heel ridge 152.
  • the ridges 143, 142 and heel ridgel52 improves the support and durability of the support cushion 105 and helps prevent pronation and supination rotations on the user's foot during use, which enhances and improves the performance of the insole.
  • the midfoot/heel support cushion 105 also has a surrounding heel cup 104 that supports the exterior back of the user's heel with the heel cup 104 and extends to the raised arch area 1 19, which also improves the support provided to the user's foot during use.
  • Support cushion 105 has side and end walls that wrap up the sides and rear of base layer 102 to provide support for the foot by cupping the outside areas of the heel, providing stability stiffness from the midfoot to the heel area, and providing an upward support in the medial arch area of the user's foot.
  • midfoot-to-heel support cushion 105 ranges from approximately 0.5 mm to 3 mm thick and the walls taper from approximately 3 mm to about 0.5 mm.
  • the first or second set of longitudinal indentations have a groove depth of approximately 0.50 mm- 1.5 mm.
  • a raised separation wall 151 located on the base layer 102 between the forefoot pad 107 and the midfoot/heel support cushion 105, which is located laterally across the width of the insole 100 between the metatarsal and forefoot areas on the insole 100.
  • the separation wall provides isolation of the forefoot pad 107 from the midfoot-to-heel support cushion 105, which improves the cushioning characteristics of those materials as well as improving the support of the insole 100.
  • the separation wall 151 located on the bottom surface of the base layer is approximately 1 mm in height.
  • forefoot pad 107 is formed of a relatively resilient material so that energy put into compressing forefoot pad 107 is returned to help propel the foot at toe off.
  • the first metatarsal naturally flexes downward. Preventing this natural downward flex of the first metatarsal causes the arch of the foot to flatten and the foot to over pronate, increasing stress on the ankles and knees.
  • the forefoot pad 107 extends rearward into a corresponding concave edge portion of the distal edge of separation wall 151. The shape of the forefoot pad 107 permits the first metatarsal to flex more naturally and thereby encourages loading of the great toe during toe off.
  • the heel pod opening 1 12 extends through the entirety of the thickness of the midfoot/heel support cushion 105 to position the heel pad 1 18 on the bottom surface of the base layer 102.
  • the heel pad aperture is surrounded by a flat midfoot/heel surface with surrounding grooves.
  • the heel pod opening 112 is surrounded circumferentially by heel pod opening border grooves 138, which surrounds the circumference of the heel pod opening 1 12. These grooves isolate the heel pad 118 from the midfoot-to-heel support cushion 105, which improves the performance of the heel pad 1 18 by isolating the heel pad 1 18 and preventing migration of the cushioning effect laterally (cushioning effect absorbs directional impact force better with supporting grooves).
  • the heel pad 118 is located in the heel pod opening 112 and affixed to the bottom surface of the insole 100, and the heel pad 1 18 that extends from the proximate end of the heel (calcaneal bone) area to an area adjacent the proximal portion of the medial arch support area.
  • the heel cushioning area has a heel pad 1 18 secured within a heel pad aperture or opening 1 12 formed in the support cushion 105 of the insole, with said heel pad 1 18 being secured to the base layer 102.
  • the heel pad opening 112 has a groove pattern 138 surrounding it periphery, which assists with durability of the insole 100 and enhances the cushioning capabilities of the heel pad 1 18.
  • the heel pad 1 18 has a thickness of approximately 3.0 mm ⁇ 0.5 mm. In an alternate embodiment, the heel pad 1 18 is integrally formed in the material of the base bottom surface of the insole.
  • the heel pad 118 provides compressive cushioning and support under the heel (calcaneal) bone.
  • the heel pad 1 18 has a diamond-cube pattern 120 on the heel pad 1 18 surface to provide compressive cushioning and support to the heel area.
  • the diamond cube partem 120 has a depth of approximately 1.5 mm ⁇ 0.5 mm and has a surface pattern spacing of about 1.0 mm to about 1.5 mm.
  • the heel pad 118 has a honeycomb-shaped pattern, and, in yet another embodiment, the heel pad 118 has a texturized un-patterned surface.
  • the heel pad 1 18 is preferably molded of pre-blown ethylene vinyl acetate (EVA).
  • EVA ethylene vinyl acetate
  • the heel pad 118 may also be molded of EVA, polyurethane (PU), or thermoplastic rubber (TPR) or other suitable material.
  • a thin layer of nylon fabric may be positioned in the heel pad 118 between the heel pad 118 and the material of the base layer 102 to increase the adhesion of the heel pad 1 18 to the base layer 102 when the heel pad 118 and base layer 102 are made of differing materials.
  • the heel pad 1 18 has a diamond shaped groove pattern 120 to improve heel cushioning characteristics and improve traction and adhesion of the insole inside and along the interior bottom surface of the user's shoe.
  • the heel pad 118 can be made from a TPR gel or made of pre-blown EVA (ethylene-vinyl acetate) material, and the heel pad has a hardness rating of 10-35 Asker ⁇ 3.
  • the heel pad has a groove partem with a width spacing of approximately 1.0mm- 1.50mm.
  • Insole 100 production can be accomplished by an open-pour molding process.
  • the process consists of pouring mixed polyurethane or TPR into an open mold. Once poured in the mold, the polyurethane mixture will expand to fill the cavity. Once cured, the base insole is removed from the mold.
  • the forefoot cushion and heel cushion if employed can be secured to the indentations by adhesive or can be secured in place during the
  • Bonding occurs to a fabric that is bonded to the forefoot cushion or the heel cushion.
  • the forefoot pad 107 can be molded onto the bottom surface of the insole base layer 102 from the forefoot pad indentation 102B up to the separation wall 151 on the base bottom surface of the base layer 102.
  • a fabric layer may be inserted between the forefoot pad 107 and the base layer 102 in the forefoot pad indention 102B.
  • the midfoot/heel cushion 105 can be molded onto the bottom surface of the insole base layer 102 from the support cushion indentation 102A up to the separation wall 151 on the base bottom surface of the base layer 102.
  • a fabric layer may be inserted between the midfoot- to-heel support cushion 105 and the base layer 102 in the indentation 102A.
  • the heel pad 118 can be molded onto the bottom surface of insole base layer 102 in the heel pod opening 1 12.
  • a fabric layer may be inserted between the heel pad 118 and the base layer 102 in the support cushion indentation area 102B.
  • the forefoot pad 107, the heel pad 118, and the midfoot/heel support cushion 105 can also be secured adj acent to one another on the bottom surface of the base layer 102 with an adhesive that is suitable for creating a semipermanent (or permanent) bond or adhesive, which may be liquid upon application but firms into a solid.
  • the curvilinear indentations 132 are preferably molded into the support cushion 105 during manufacture.
  • FIG. 3 A illustrates the top (foot side) of an insole 100 according to the invention with a top sheet 128 covering the top side of the insole 100, which is placed over the base layer 102.
  • Figure 3B shows the insole 100 without the top sheet 128 in place.
  • the medial side of the base layer 102, the heel cup 104, and the lateral side of the base layer 102 are shown in Figures 3 A and 3B.
  • the teardrop metatarsal pad 134 on top side is integrally formed as upwardly-curved indentation from bottom surface of the insole.
  • the base layer 102 has a raised metatarsal dome 134.
  • the metatarsal dome 134 is positioned under the heel bone to provide additional cushioning to the user's heel while walking or standing.
  • the metatarsal dome 134 curves upward from the insole 100 top (foot contact) surface to make a dome-like contact surface under the metatarsal area of the foot.
  • the metatarsal dome 134 is preferably molded as a cushion separate from the base layer 102 and is secured to the top side of the base layer 102.
  • the metatarsal dome 134 is covered by the top sheet 128 providing a continuous contact surface to the user's foot on the top (foot contact) surface of the insole.
  • the metatarsal dome 134 is integrally formed in the material comprising the top side of the base layer 102.
  • the metatarsal dome 134 is preferably formed of super soft low density
  • polyurethane but may be formed of polyurethane memory foam, ethylene glycol polyurethane, ethylene vinyl acetate (EVA), pre-blown EVA, polyurethane (PU), thermoplastic rubber (TPR) or other suitable material.
  • Hardness of the metatarsal dome 134 material can range from less than 10 Asker ⁇ 3 to greater than 30 Asker ⁇ 3.
  • a soft metatarsal dome 134 is located on the top (foot contact) surface providing cushioning directly over the metatarsal area of the foot.
  • the top sheet 128 is shown in Figure 3 A, and the exposed top view of the insole 100 is shown in Figure 3B without the top sheet 128.
  • the top sheet 128 covers the entire foot contact surface of the insole 100 which is treated with an antimicrobial agent.
  • the top surface of the insole 100 is covered by a top sheet 128 that extends across the top surface from heel to toe end.
  • Top sheet 128 is typically made of a non-woven fabric layer with a low coefficient of friction so as to minimize the possibility of blisters, or preferably, top sheet 128 is made of a cooling fabric which contains a special low temperature jade obtained from a natural source.
  • the top sheet can be made of 65% Nylon/ 35% polyester.
  • the medial side view of the insole 100 is shown with curvilinear indentations 132 shown in the raised arch area 119. Also illustrated is a forefoot pad 107 located in the forefoot area 108, a base layer 102, a support cushion 105, the heel cup 104, and a top sheet 128.
  • Insole 100 preferably comprises a top sheet 128 and a base layer 102 having a top surface secured to said top sheet and an opposite bottom surface.
  • Base layer 102 also defines a raised arch support 119 that extends upwardly along the medial side of the insole to provide extra cushion and support to the raised arch 1 19 of the foot.
  • a strength layer 103 is composed of a woven fabric, a composite material or an enhanced fabric is also inserted between the base layer 102 and the forefoot pad 107 and/or support cushion 105 to strengthen and enhance the durability of the insole.
  • a portion of the strength layer 103 labels as 103a is shown in Figure 4.
  • this strength layer 103 can be made of knitted or woven high-strength fabric secured to the top surface of the EVA base material, but this strength layer 103 should be made of material that retains its shape upon use without significant shrinkage or deformation from heat or pressure of normal use.
  • the strength layer 103 may extend from heel-to-toe across the entire surface of the insole 100, or alternatively, may only extend across the heel area, the heel to mid-foot area, or the forefoot to toe area.
  • the insole 100 lateral side view is shown with the raised arch 119, the metatarsal dome 134 (shown in Figures 3 A and 3B), a forefoot pad 107 located in the forefoot area 108, a base layer 102, a midfoot-to-heel support cushion 105 (shown in Figure 4), the heel cup 104, the lateral side of the support cushion 105, and a top sheet 128 (shown in Figure 5A only).
  • the top sheet 128 is not shown in Figure 5B.
  • Figure 5A and 5B shows that insole 100 preferably comprises a top sheet 128 and a base 102 having a top surface secured to said top sheet 128 and an opposite bottom surface.
  • Base layer 102 also defines a raised arch support 119 that extends upwardly along the medial side of the insole to provide extra cushion and support to the arch area of the foot.
  • the shoe insole 100 has a bottom surface formed of three pieces including: (1) a base layer 102 extending from heel-to-toe, (2) a forefoot pad 107 positioned in a forefoot pad indentation area 102A (shown in Figure IB) on a forefoot base area 108 of the insole 100, and, (3) a midfoot-to-heel support cushion 105 positioned in a midfoot to heel indentation area 102B (shown in Figure IB).
  • the three- piece bottom surface construction makes fabrication easier than known methods, and allows for different combinations of materials and cushioning characteristics and support by adjusting the materials used in the forefoot pad 107, base layer 102, the support cushion 105, and the heel pad 118.
  • the forefoot pad 107 extends from the toe end of the insole to the lateral midfoot area and from the medial side to the lateral side of the forefoot area with a diamond-cube pattern molded in the gel having pattern spacing of about 1 mm and a depth of about 1.5 mm.
  • the firmness of the forefoot pad 107 can be adjusted to address issues of over/under pronation, over/under supination, and other problems related to foot motion by altering the size, shape, and material properties of the pads.
  • the configuration, material and position of the forefoot pad 107 provides cushioning and works in association with other items to stabilize the ankle.
  • the forefoot pad 107 has a diamond shaped groove pattern 117 (shown in Figures 1A-1C and 2A-2B) on its bottom surface to improve forefoot cushioning characteristics, which improves traction and adhesion of the insole inside and along the interior bottom surface of the user's shoe and improves durability and cushioning aspects of the forefoot pad 107 over known materials.
  • the midfoot/heel support cushion 105 has a raised arch 119 in the medial arch area, which has longitudinal curvilinear indentations 132 positioned along at least two or more major angles from the longitudinal axis, with the longitudinal axis extending from heel-to- toe on the insole 100. As shown in Figure 4, longitudinal curvilinear indentations 132 extend in a first angled direction compared to the longitudinal axis of the insole 100. The longitudinal curvilinear indentations 132 in the raised arch 119 provide additional rigidity to the raised arch support 1 19, which improves support provided by the raised arch 119 on the support cushion 105.
  • indentations 132 in this formation also promote polyurethane material flow in support cushion 105 formation while assisting to minimize voids caused by air entrapment.
  • the curvilinear indentations in the arch area 1 19 also allow the arch area to collapse to fit the shoe thus providing a more accommodative design.
  • the separation wall 151 provides isolation of the forefoot pad 107 from the midfoot-to-heel support cushion 105, which improves the cushioning characteristics of those materials as well as improving the support of the insole 100.
  • the heel begins to lift from the ground and weight shifts to the ball of the foot.
  • Forefoot pad 107 is located under this part of the foot.
  • the top sheet 128 bottom surface is secured to base layer 102 top surface and a top sheet upper surface which contacts the foot of a user during use.
  • the top sheet 128 is oriented to engage the user's foot on the top surface of the insole, and it serves an upper cooling and ventilation function, and the top sheet 128 can be made of suitable materials, such as a jadeite top cloth material.
  • the top sheet 128 is made of a low-friction fabric which prevents blisters on the user's foot.
  • the top sheet 128 may also contain an antimicrobial treatment in order to keep bacteria from multiplying and therefore reduce odor.
  • FIG. 6A and 6B show the front end view of the insole 100 from the toe end looking toward the heel end 104, upraised heel area is visible at the heel end 104, raised arch support 119 is seen on the medial side, with the top sheet 128 shown in Figure 6A and not shown in Figure 6B.
  • Figure 6A shows forefoot pad 107 in forefoot area 108, base layer 102, raised arch area 119, and top sheet 128.
  • Figures 7A and 7B shows the heel end view of the insole 100 looking from the heel area towards the toe area, with the top sheet 128 shown in Figure 7 A and not shown in Figure 7B. From this view, one can see the features of insole 100 including heel cup 104, lateral side and medial side of the base layer 102, the raised arch 1 19 with placement of curvilinear indentations 132, and the top sheet 128.
  • the shoe insole 100 has a bottom surface formed of three pieces including: (1) a base layer 102 extending from heel-to-toe, (2) a forefoot pad layer 107 positioned in a forefoot pad indentation 102B (shown in Figure IB) on a forefoot base area 108 of the insole 100, and, (3) a midfoot-to-heel support cushion 105 positioned in a midfoot to heel indentation 102A (shown in Figure IB).
  • the three-piece bottom surface construction makes fabrication easier than known methods, and allows for different combinations of materials and cushioning characteristics and support by adjusting the materials used in the forefoot pad 107, base layer 102, the support cushion 105, and the heel pad 118 (shown in Figures 1A-1C and 2A-2B).
  • a strength layer 103 is composed of a woven fabric, a composite material or an enhanced fabric is also inserted between the base layer 102 and the forefoot pad 107 and/or the support cushion 105 to strengthen and enhance the durability of the insole.
  • a portion of the strength layer 103a is shown in Figure 4.
  • this strength layer 103 can be made of knitted or woven high-strength fabric secured to the top surface of the EVA base material, but this strength layer 103 should be made of material that retains its shape upon use without significant shrinkage or deformation from heat or pressure of normal use.
  • the strength layer 103 may extend from heel-to-toe across the entire surface of the insole 100, or alternatively, may only extend across the heel area, the heel to mid-foot area, or the forefoot to toe area.
  • the insole 100 has a base layer 102, a forefoot pad 107, a heel pad surrounded by a flat midfoot/heel surface and cupped along the back by a heel cup 104.
  • the midfoot/heel cushion 105 has a raised arch 119 in the medial arch area and longitudinal curvilinear indentations 132 positioned along at least two or more maj or angles from the longitudinal axis, with the longitudinal axis extending from heel-to-toe on the insole 100.
  • a teardrop metatarsal dome 134 shown in Figures 6A and 6B and is located on top side of the insole 100 is integrally formed from the upwardly-curved metatarsal raised area 134 on the bottom surface, and a diamond-shaped groove pattern 1 17, 120 is located on the bottom surface of the forefoot pad 107.
  • a separation wall 151 is located between cushion 105 and forefoot pad 107 with an approximate height of 1 mm.
  • the forefoot pad 107 extends from the toe end of the insole to the midfoot area and extends from the medial side to the lateral side of the forefoot area with a diamond-cube groove partem 1 17 molded in the gel having partem spacing of about 1 mm and a depth of about 1.5 mm.
  • the forefoot pad 107 has a firmness that can be adjusted to address issues of over/under pronation, over/under supination, and other problems related to foot motion by altering the size, shape, and material properties of the pads.
  • the configuration, material and position of the forefoot pad 107 provides cushioning and works in association with other items to stabilize the ankle.
  • the forefoot pad 107 has a diamond shaped groove pattern 117 on its bottom surface to improve forefoot cushioning characteristics, which improves traction and adhesion of the insole inside and along the interior bottom surface of the user's shoe and improves durability and cushioning aspects of the forefoot pad 107 over known materials.
  • the midfoot/heel cushion 105 has a raised arch 1 19 in the medial arch area of the insole 100 and longitudinal curvilinear indentations 132 positioned along at least one major angle of inclination from the longitudinal axis, with the longitudinal axis extending from heel-to-toe on the insole 100. As shown in Figures 7 A and 7B, longitudinal curvilinear indentations 132 extend in a first angled direction compared to the longitudinal axis of the insole 100.
  • the top sheet 128 bottom surface is secured to base layer 102 top surface and a top sheet upper surface which contacts the foot of a user during use.
  • the top sheet 128 is oriented to engage the user's foot on the top surface of the insole, and it serves an upper cooling and ventilation function, and the top sheet 128 can be made of suitable materials, such as a jadeite top cloth material.
  • the top sheet 128 is made of a low-friction fabric which prevents blisters on the user's foot.
  • the top sheet 128 may also contain an antimicrobial treatment in order to keep bacteria from multiplying and therefore reduce odor.
  • Foot contact with the ground is generally divided into three phases: heel strike, midfoot support, and toe off.
  • heel strike the heel of the foot impacts the ground with significant force.
  • the foot twists, or pronates, bringing the medial side of the heel into contact with the ground.
  • the foot is sensitive to the amount of pronation as well as the rate at which the pronation occurs. Pronation is natural, and some degree of pronation is desirable because it serves to absorb the stresses and forces on the foot during walking or running. However, an excessive amount or rate of pronation can result in injury.
  • Support cushion 105 provides firm support along the medial portion of the foot, including the medial arch area and surrounding the heel area, to help control the amount of foot pronation.
  • the various components of an insole which are secured to base layer 102 in the indentation areas defined by base layer 102 on the bottom surface are permanently affixed to base layer 102 using an appropriate means such as an adhesive.
  • the components are secured during the molding process using techniques known in the art of molding insoles.
  • the indentation areas are also lined with a cloth having a base surface and a pad surface, secured to said base layer 102 along said base surface and said pad along said pad surface. Alternatively, a cloth is secured to said pad and then the composite structure secured to the indentation area.
  • An improved insole 100 has been disclosed. It will be readily apparent that the illustrative embodiments of an insole thus disclosed may be useful in cushioning the foot and controlling pronation during activities such as hiking, backpacking, and the like.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

L'invention concerne une semelle intérieure qui comprend une feuille supérieure, une couche de base, un coussinet d'avant-pied, un coussin de talon, et un coussin de support, ainsi qu'une couche de résistance insérée entre ces composants destinée à renforcer et améliorer la durabilité de la semelle intérieure. Le coussinet d'avant-pied peut être constitué d'EVA expansé ou d'un autre matériau, et le coussinet de talon peut être constitué de TPR transparent, de polyuréthane souple ou d'EVA expansé. Le coussin de support comprend une voûte surélevée présentant des indentations curvilignes longitudinales, une zone intermédiaire aplatie pourvue d'une zone surélevée métatarsienne en goutte d'eau intermédiaire et de nervures longitudinales sur la zone intermédiaire plate. Un emboîtage de talon entoure l'arrière du talon, et une ouverture de coque de talon traverse entièrement l'épaisseur de la couche de base du corps de la semelle intérieure pour le positionnement du coussinet de talon de façon que ce dernier soit fixé à la surface inférieure de la couche de base. L'invention concerne également un dôme surélevé métatarsien extra-souple sur la surface supérieure (en contact avec le pied) de la semelle intérieure qui se situe directement au-dessus de la zone intermédiaire métatarsienne.
PCT/US2016/034346 2015-05-28 2016-05-26 Semelle intérieure de chaussure à support profilé WO2016191562A2 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US201562167800P 2015-05-28 2015-05-28
US62/167,800 2015-05-28
US201562182193P 2015-06-19 2015-06-19
US62/182,193 2015-06-19
US201562213031P 2015-09-01 2015-09-01
US62/213,031 2015-09-01

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107095392A (zh) * 2017-07-04 2017-08-29 东莞市顺风运动器材有限公司 一种老年人专用鞋垫
USD903268S1 (en) 2019-02-06 2020-12-01 S. C. Johnson & Son, Inc. Insole
USD906658S1 (en) 2019-02-19 2021-01-05 S. C. Johnson & Son, Inc. Insole

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7107705B2 (en) * 2002-12-23 2006-09-19 Spenco Medical Corporation Insole with improved cushioning and anatomical centering device
US8453346B2 (en) * 2007-08-24 2013-06-04 Orthosole Limited, A Guernsey Limited Company Orthotic foot device with removable support components and method of making same
KR101746521B1 (ko) * 2010-05-18 2017-06-14 주식회사 학산 맞춤형 밸런스 유지용 패드가 구비된 신발깔창
AU2011270871B2 (en) * 2010-06-25 2014-10-09 Implus Footcare, Llc Contoured support insole
JP5187918B2 (ja) * 2011-02-23 2013-04-24 昇 今村 足痛解消・軽減・トラブル解消靴及び中敷

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107095392A (zh) * 2017-07-04 2017-08-29 东莞市顺风运动器材有限公司 一种老年人专用鞋垫
USD903268S1 (en) 2019-02-06 2020-12-01 S. C. Johnson & Son, Inc. Insole
USD906658S1 (en) 2019-02-19 2021-01-05 S. C. Johnson & Son, Inc. Insole
USD935758S1 (en) 2019-02-19 2021-11-16 S. C. Johnson & Son, Inc. Insole

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