FOOT STABILIZING DEVICE
The present invention provides a foot stabilizing device, which can be an insole body or a sole body having a foot contacting surface. The insole body or the foot contacting surface of the sole body has a toe region, a foot sole region, a foot arch region, and a foot heel region for corresponding to the toes, the foot sole, the foot arch and the foot heel of a user's foot, respectively. The present invention is characterized in that a reducing stress structure is formed between a center position of a rear end of the toe region and a middle portion of the foot sole region in longitudinal direction. Thus, the contacting force between the use's foot and the reducing stress structure can be minimized and the user's foot can be stabilized on the insole body or the sole body thereby to prevent the foot from sliding forwardly or around.
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1. Technical Field
The present invention relates to a foot stabilizing device, and more particularly, to the foot stabilizing device that uses a reducing stress structure to reduce the force in contact with a user's foot.
2. Description of Related Art
A human foot contains 26 bones and 33 joints, and these bones and joints are covered by more than 100 muscles, tendons, ligaments, blood vessels, nerves, skin, and soft tissues. Regardless of standing or walking, the whole operation of the feet is very complicated.
Since both feet are provided for supporting the whole body weight and the structure of human bones and muscles intertwined with each other, therefore the knees and pelvis may be affected when there is a problem of the foot structure. In a more serious case, spine may be skewed, and the bone structure further affects the functions of human organs. Podiatric medicine begins to be taken increasingly more serious, and feasible solutions are provided by podiatric medicine to prevent the aforementioned problems.
In international podiatric medicine, insole is generally used as a foot aid to correct and treat foot problems. However, the design of most of the present existing insoles are based on the three-point mechanics of human arch, so that a transverse arch, an inner arch and an outer arch of the foot arch achieve a three-point stress balance. The present existing insoles come with various different designs, such as three support points according to the three-point mechanics which refer to protrusions or recesses formed at a first metatarsal position, a fifth metatarsal position, and a heel position, or a heel cup design attempting to cover and stabilize a user's foot. However, the contact position of the foot with the insole may be shifted after a long time of walking, so that the foot will slide on the insole, and an unstable situation of the feet may occur.
In addition, portions of a foot which are between a second phalange and a second metatarsus and between a third phalange and a third metatarsus protrude further to the outside than other metatarsus, and such corresponding portions still have a planar surface on the insole, and thus the foot may slide forward or sideway when these portions are in contact with the insole every time, and the foot stability for a perfect walking posture is ruined.
BRIEF SUMMARY OF THE INVENTIONThe present invention discloses a foot stabilizing device having a reducing stress structure formed on a contact surface of an insole body or a sole body with a user's foot and provided for reducing the contact force of user's foot with the reducing stress structure and stabilizing the foot to prevent the foot from sliding forward or sideway.
The present invention provides a foot stabilizing device which is an insole body having a toe region, a foot sole region, a foot arch region and a foot heel region sequentially disposed from an insole front-end to an insole rear-end, characterized in that the insole body comprises a reducing stress structure extended longitudinally from the center position of a rear end of the toe region to the middle position of the foot sole region.
The present invention also provides a foot stabilizing device which is a sole body having a foot contacting surface, and the foot contacting surface has a toe region, a foot sole region, a foot arch region and a foot heel region sequentially disposed from a sole front-end to a sole rear-end, characterized in that the foot contacting surface comprises a reducing stress structure extended longitudinally from the center position of a rear end of the toe region to the middle position of the foot sole region.
The present invention at least has the effects of:
1. stabilizing the position of the foot to prevent the foot from sliding forward or sideway; and
2. allowing the user to walk with an almost perfect walking posture.
The detailed features and advantages of the present invention will be described in detail with reference to the preferred embodiment so as to enable persons skilled in the art to gain insight into the technical disclosure of the present invention, implement the present invention accordingly, and readily understand the objectives and advantages of the present invention by perusal of the contents disclosed in the specification, the claims, and the accompanying drawings.
With reference to
In
In
When the user's foot steps on the insole body 10 or the sole body 11, the user's toe is situated in the toe region 21, and the user's metatarsus is situated in the foot sole region 22, and the arch is situated in the foot arch region 23, and the heel is situated in the foot heel region 24.
In
The reducing stress structure 30 has a width equal to one-third of the width of the insole body 10 or the foot contacting surface 111. In other words, the insole body 10 or the foot contacting surface 111 is divided into three equal parts along the horizontal direction, and the reducing stress structure 30 is situated at the middle position of the insole body 10 or the foot contacting surface 111 in the horizontal direction. The reducing stress structure 30 may be in an oval shape (or a triangular shape with three round angles), and the oval shape has a tapered end 32a proximate to the toe region 21 to fit the tapered shape of a human foot sole tapered from the metatarsus towards the phalange. By extending the reducing stress structure 30 longitudinally from the center position of the rear end of the toe region 21 to the middle position of the foot sole region 22, the contact area and contact force between the second metatarsus and the insole body 10 or the sole body 11 as well as that between the third metatarsus and the insole body 10 or the sole body 11 can be reduced when the user lifts or drops the foot in a walk, so as to solve the problem of sliding the foot forward or sideway.
In
Regardless of the oval shape (or considered as a triangular shape with three round angles) or the prolate elliptical shape, both shapes are slender in coordination with the long shape of the foot bones. Compared with the traditional circular aid structure, the present invention can achieve a more effective effect of stabilizing the foot.
To cope with different sizes of the insole body 10 or the sole body 11, the reducing stress structure 30a in the prolate elliptical shape may have a length from 8.5 cm to 12 cm or from 8.8 cm to 11.7 cm, and a width from 2.5 cm to 4 cm, or from 2.8 cm to 3.7 cm.
In
In each of the aforementioned figures, the reducing stress structure 30, 30a or the assistant reducing stress structure 31 may be a structure with a concave upper surface. In
In
In
In
To further improve the supporting and balancing effects, a second balancing bump 52 is added on an outer side of a region of the reducing stress structure 30 and inside the foot sole region 22, and the second balancing bump 52 is disposed on an extension of the line of symmetry 33.
In
Each implementation mode of the preferred embodiments is capable of reducing the contact force of the user's foot with the insole body 10 or the sole body 11 and overcoming the problem of rubbing the second metatarsus and the third metatarsus of the foot with the insole body 10 and the sole body 11, thereby improving the stability of the foot.
The features of the present invention are disclosed above by the preferred embodiment to allow persons skilled in the art to gain insight into the contents of the present invention and implement the present invention accordingly. The preferred embodiment of the present invention should not be interpreted as restrictive of the scope of the present invention. Hence, all equivalent modifications or amendments made to the aforesaid embodiment should fall within the scope of the appended claims.
Claims
1. A foot stabilizing device, being an insole body with a toe region, a foot sole region, a foot arch region, and a foot heel region disposed sequentially from an insole front-end to an insole rear-end, characterized in that the insole body comprises a reducing stress structure extended longitudinally from the center position of a rear end of the toe region to the middle position of the foot sole region.
2. The foot stabilizing device of claim 1, wherein the reducing stress structure has a width equal to one-third of the width of the insole body width, and the reducing stress structure is in an oval shape, and the oval shape has a tapered end proximate to the toe region.
3. The foot stabilizing device of claim 2, further comprising a first balancing bump disposed in a region of the reducing stress structure and on a line of symmetry of the reducing stress structure.
4. The foot stabilizing device of claim 3, further comprising a second balancing bump disposed on an outer side of the region of the reducing stress structure and on an extension line of the line of symmetry.
5. The foot stabilizing device of claim 1, wherein the reducing stress structure is further extended towards the foot heel region and extended to a front end of the foot arch region, and the reducing stress structure has a width equal to one-third of the width of the insole body, and the reducing stress structure is in a prolate elliptical shape, and both ends of the prolate elliptical shape have a tapered end.
6. The foot stabilizing device of claim 5, further comprising a first balancing bump and a second balancing bump, both disposed in a region of the reducing stress structure and on a line of symmetry of the reducing stress structure. 7, The foot stabilizing device of claim 5, wherein the reducing stress structure has a length from 8.5 cm to 12 cm and a width from 2.5 cm to 4 cm.
8. The foot stabilizing device of claim 1, further comprising an assistant reducing stress structure disposed at a lateral side of the foot arch region and at a position along an edge of the insole body, and having a meniscus shape for reducing the stress imposed on a user's outer arch.
9. The foot stabilizing device of claim 8, wherein the reducing stress structure and the assistant reducing stress structure is a structure with a concave upper surface, a concave lower surface, or both concave upper and lower surfaces.
10. The foot stabilizing device of claim 8, wherein the reducing stress structure or the assistant reducing stress structure is made of a soft substance with a hardness smaller than the hardness of the insole body.
11. A foot stabilizing device, being a sole body with a foot contacting surface, and the foot contacting surface having a toe region, a foot sole region, a foot arch region and a foot heel region disposed sequentially from a sole front-end to a sole rear-end, characterized in that the foot contacting surface comprises a reducing stress structure, and the reducing stress structure is extended longitudinally from the center position of a rear end of the toe region to the middle position of the foot sole region.
12. The foot stabilizing device of claim 11, wherein the reducing stress structure has a width equal to one-third of the width of the foot contacting surface width, and the reducing stress structure is in an oval shape having a tapered end proximate to the toe region. The foot stabilizing device of claim 12, further comprising a first balancing bump disposed in a region of the reducing stress structure and on a line of symmetry of the reducing stress structure.
14. The foot stabilizing device of claim 13, further comprising a second balancing bump disposed on an outer side of the region of the reducing stress structure and on an extension line of the line of symmetry.
15. The foot stabilizing device of claim 11, wherein the reducing stress structure is further extended towards the foot heel region and extended to a front end of the foot arch region, and the reducing stress structure has a width equal to one-third of the width of the foot contacting surface, and the reducing stress structure is in a prolate elliptical shape, and both ends of the prolate elliptical shape have a tapered end.
16. The foot stabilizing device of claim 15, further comprising a first balancing bump and a second balancing bump, both disposed in a region of the reducing stress structure and on a line of symmetry of the reducing stress structure.
17. The foot stabilizing device of claim 15, wherein the reducing stress structure has a length from 8.5 cm to 12 cm and a width from 2.5 cm to 4 cm.
18. The foot stabilizing device of claim 11, further comprising an assistant reducing stress structure disposed at a lateral side of the foot arch region and at a position along an edge of the foot contacting surface and having a meniscus shape for reducing the stress imposed on a user's outer arch.
19. The foot stabilizing device of claim 18, wherein the reducing stress structure or the assistant reducing stress structure is a structure with a concave upper surface.
20. The foot stabilizing device of claim 18, wherein the reducing stress structure or the assistant reducing stress structure is made of a soft substance with a hardness smaller than the hardness of the sole body.
Type: Application
Filed: Feb 1, 2016
Publication Date: Aug 11, 2016
Applicant:
Inventor: Tzann-Yuh TZENG (Taipei)
Application Number: 15/011,737