Support insole for shoes

Abstract

An support insole includes a middle medium sandwiched between flexible upper and lower layers, wherein upper layer has a forefoot region with a metatarse protrusion that projects upward from an upper surface of the upper layer to a certain height, a midfoot region with inner and outer arch sides, wherein the inner arch side has an inner arch protrusion that projects upwardly from the upper surface to a certain height and wherein the outer arch side has a plurality of outer arch protrusions that project upwardly from the upper surface to a certain height, a hindfoot region with a heel support protrusion that projects upwardly from the upper surface to a certain height, wherein the top face is dented inwardly so as to form a concave recess such that the support insole is ergonomically designed to provide comfort for a wearer.

Description

BACKGROUND OF THE INVENTION1. Field of the Invention[0001]The present invention relates generally to an insole, and more particularly to a support insole for shoes which is ergonomically designed in such a manner to provide extra comfort to reduce fatigue of foot, thereby enabling a person to maintain a normal walking condition.2. The Prior Arts[0002]When we are walking, we are putting 0.8-1.2 times of our body weight on a single foot in addition to the counterforce from the ground. The counterforce of the ground usually causes problems in our ankles, knees, skeleton or other body parts and in the long time, may result in injury to our foot, especially knees and ankles. To avoid this, it is best to put a support insole in our shoes to absorb the stress or shock.[0003]A conventional support insole is fabricated from leathers and simply provides support to our feet. In other words, the conventional support insole is weak in shock absorption. Another support insole fabricated from elas...

AI Technical Summary

Benefits of technology

[0007]A primary objective of the present invention is to provide a support insole that is ergonomically constructed, that has a better impact resistance and that provides comfortable feeling during walking. In addition, the support insole provides a cushioning effect to the arch portion of the foot during touching of the ground so as to reduce fatigue of foot mentioned in the prior arts.

[0008]Another objective of the present invention resides in that the flexible upper and lower layers fabricated from different materials are securely and fixedly bond together in such a manner to dispose the upper layer to contact with the sole of the foot and the lower layer is disposed to contact with an interior of the shoes while a middle medium is used for securely binding the upper and lower layers in order to avoid the undesired separation of the upper and lower layers at the peripheries confining the layers.

[0010]Accordingly, a support insole of the present invention includes a flexible upper layer, a middle medium and a flexible lower layer. The flexible upper layer is configured as an inner bottom side of a shoe, includes a forefoot region, a midfoot region and a hindfoot region, wherein the forefoot region has a metatarse protrusion that projects upward from an upper surface of the upper layer, the midfoot region has opposite inner and outer arch sides, wherein the inner arch side has an inner arch protrusion that projects upwardly from the upper surface of the upper layer to a certain height and that has the greatest elevation of 4.2 mm-4.8 mm with respect to the upper surface of the upper layer, wherein the outer arch side has a plurality of outer arch protrusions that project upwardly from the upper surface of the upper layer to a certain height and that has the greatest elevation of 4.2 mm-4.8 mm with respect to the upper surface of the upper layer, the hindfoot region having a heel support protrusion that projects upwardly from the upper surface of the upper layer to a certain height and that has a top face with the greatest elevation of 3 mm-4 mm with respect to the upper surface of the upper layer, wherein the top face is dented inwardly so as to form a concave recess with a depth of 2.2 mm-2.7 mm. The middle medium is attached to a bottom surface of the upper layer. The flexible lower layer has an upper surface attached to a bottom surface of the middle medium. Due to the reasons that the upper and lower layers are fabricated from different flexible materials and that the support insole is ergonomically constructed, the support insole provides a better cushioning support to the foot.

[0011]According to an embodiment of the present invention, each of the outer arch protrusions is hemispherical shape. The outer arch protrusions extend from a front part to a rear part of the upper layer, and includes a first outer arch protrusion, a second outer arch protrusion and a third outer arch protrusion, wherein the first outer arch protrusion has a diameter greater than that of the second outer arch protrusion while the second outer arch protrusion has a diameter greater than that of the third outer arch protrusion. Owing to the present of the inner and outer arch protrusions, the inner and outer arch portions of a wearer's foot can achieve an effective support in addition to the massaging effects.

[0012]It is to note that when a person is standing, the majority of the body weight is generally concentrated and distributed at the middle portion and the outer arch portion of the foot. Therefore, in the support insole of the present invention, the inner arch protrusion of the inner arch side has a volume greater than a combined total volume of the first outer arch protrusion, the second outer arch protrusion 1 and the third outer arch protrusion such that the inner arch portion of the standing foot is supported by a greater volume, thereby provide a balance cushioning support to the entire portion of the sole of the wearer.

[0013]Note again that during walking, it is the front portion of the foot that stresses against the ground. Therefore, in the support insole of the present invention, the metatarse protrusion of the forefoot region has a volume greater than the volume of the inner arch protrusion of the inner arch side such that the forefoot of the foot is supported in a greater area and volume, thereby providing a fine balance of the entire foot.

Problems solved by technology

The counterforce of the ground usually causes problems in our ankles, knees, skeleton or other body parts and in the long time, may result in injury to our foot, especially knees and ankles.

Owing to damping characteristics of the elastic support insole and due to each person requires energy during walking, the muscles of the foot still may get fatigue.

In addition, it is noted that the elastic support insole is too soft and is weak in resistance against the impact of the ground.

The conventional support insole fails to provide cushioning effect to the arch portion of the foot, hence causing fatigue to the walking foot.

Another drawback of the conventional support insole resides in that the hindfoot portion is generally flat and therefore fails to provide cushioning effect the heel of the foot, thereby causing discomfort the wearing person.

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