Healthy insole

Abstract

A healthy insole is disclosed, which includes a first soft elastic member including a front metatarsal section, a mid foot section, and a rear heel section, and formed in a shape corresponding to a shape of an inner bottom surface of a shoe; a hard elastic member disposed at a bottom of the mid foot section and the rear heel section of the first soft elastic member, wherein a first through hole and a second through hole are respectively disposed in an arch portion of the mid foot section and the rear heel section, and a plurality of first recesses are disposed on the surface of the hard elastic member, and an arch elastic part is disposed in the first through hole; and a second soft elastic member disposed in the second through hole of the hard elastic member, wherein a plurality of second recesses are disposed on the surface of the second soft elastic member.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a healthy insole capable of being placed inside a shoe, and in particular to an impact absorbing and shock dispersing insole which can help people to walk at a normal pace.[0003]2. The Prior Arts[0004]In walking, each foot bears a reaction force equal to about 0.8-1.2 times of the body weight. Its reaction force directly impacts on the foot sole, knee and spine. Thus, a pad is often provided for absorbing the impact. Otherwise, many foot-related problems may occur in a long term period.[0005]A conventional plane leather-made insole for shoes only provides cushioning characteristics, which does not have sufficient performance on shock and impact absorbing. U.S. Pat. No. 7,140,126 disclosed a plastic insole, which improves the disadvantages of the conventional plane insoles and can be just placed into a shoe. The conventional insole takes advantages of elastic property and softness of plas...

AI Technical Summary

Benefits of technology

[0008]The objective of the present invention is to provide a healthy insole having better impact resistance and elasticity.

[0009]Another objective of the present invention is to provide a healthy insole that meets the requirements of ergonomics and has an elastic supporting structure to support the foot arch during stepping or walking so as to reduce foot fatigue.

[0010]The healthy insole of the present invention comprises a first soft elastic member, a second soft elastic member, and a hard elastic member. The first soft elastic member includes a front metatarsal section, a mid foot section and a rear heel section, and is formed in a shape corresponding to the shape of inner bottom surface of a shoe. The hard elastic member is disposed at the bottom of the mid foot section and the rear heel section of the first soft elastic member, and an arch elastic part is formed at an arch portion of the mid foot section. The second soft elastic member is disposed at the rear heel section for serving as a rear heel portion. The mid foot sections of the first soft elastic member and the hard elastic member are in an upward-protruding arc shape, so that when the insole is placed in a shoe for walking, an impact resistance is obtained through the hard elastic member. With the arc shape of the mid foot section and the arch elastic part, the foot arch can be provided with an elastic supporting effect, and thereby the fatigue feeling generated during walking is avoided. With the second soft elastic member disposed at the rear heel portion, the impact generated by putting the foot on the ground while stepping or walking is buffered.

[0011]The healthy insole of the present invention comprises a first soft elastic member made of polyurethane (PU), which includes a front metatarsal section, a mid foot section, and a rear heel section, and formed in a shape corresponding to a shape of an inner bottom surface of a shoe; a hard elastic member made of a polypropylene (PP), which is disposed at a bottom of the mid foot section and the rear heel section of the first soft elastic member, wherein a first through hole and a second through hole are respectively disposed in an arch portion of the mid foot section and the rear heel section, and a plurality of first recesses are disposed on the surface of the hard elastic member, and an arch elastic part is disposed in the first through hole; and a second soft elastic member made of thermoplastic elastomers (TPE), which is disposed in the second through hole of the hard elastic member, wherein a plurality of second recesses are disposed on the surface of the second soft elastic member. With the arc shape of the mid foot section and the arch elastic part formed at the arch portion, the foot arch can be provided with an elastic supporting effect, and the fatigue feeling generated during walking is therefore avoided. With the second soft elastic member disposed at the rear heel portion, the impact generated by putting the foot on the ground while stepping or walking is buffered. The elastic effect and absorbing impact effect can be further enhanced through the first recesses formed in the hard elastic member and the second recesses formed in the second soft elastic member.

[0013]In one preferred embodiment, an upper layer can be disposed on the top surface of the first soft elastic member for providing more comfortable feelings when the foot is in contact with the insole. The upper layer can be made of a fabric or a plastic material, and the upper layer can be provided with decorative designs, patterns, texts or trademarks by printing or other methods.

[0014]In one preferred embodiment, the second soft elastic member is designed to be in an oval shape, which is substantially the same as the shape of the heel of the foot. The diameter of the second recesses formed on the surface of the second soft elastic member is greater than that of the first recesses formed on the surface of the hard elastic, member, so that when the second soft elastic member is subject to a user's weight, a better elastic deformation can be achieved for absorbing impacts.

Problems solved by technology

Otherwise, many foot-related problems may occur in a long term period.

A conventional plane leather-made insole for shoes only provides cushioning characteristics, which does not have sufficient performance on shock and impact absorbing.

However, the shock absorbing property of the soft plastic insole has a disadvantage.

Because the soft plastic insole has a damping effect, a user requires a more strenuous effort to walk, and thereby he / she easily got muscle fatigue.

Moreover, the soft plastic insole is too soft to provide a sufficient elasticity, and thus the impact resistance is relatively low.

The conventional insole does not provide an appropriate structure for supporting the foot arch portion.

Thus, the user who wears the shoe with the conventional insole is more likely to feel fatigue during stepping or walking.

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