EP2641495A1 - Footwear - Google Patents
Footwear Download PDFInfo
- Publication number
- EP2641495A1 EP2641495A1 EP11840895.4A EP11840895A EP2641495A1 EP 2641495 A1 EP2641495 A1 EP 2641495A1 EP 11840895 A EP11840895 A EP 11840895A EP 2641495 A1 EP2641495 A1 EP 2641495A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- toe
- toes
- site
- big toe
- insole
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 210000003371 toe Anatomy 0.000 claims abstract description 52
- 210000001255 hallux Anatomy 0.000 claims abstract description 47
- 210000000455 fourth toe Anatomy 0.000 claims description 11
- 210000000431 third toe Anatomy 0.000 claims description 11
- 210000000453 second toe Anatomy 0.000 claims description 7
- 210000002683 foot Anatomy 0.000 description 29
- 206010061159 Foot deformity Diseases 0.000 description 13
- 208000001963 Hallux Valgus Diseases 0.000 description 13
- 208000024891 symptom Diseases 0.000 description 7
- 206010033425 Pain in extremity Diseases 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
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
-
- 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
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
-
- 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
-
- 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
- A43B7/1425—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 ball of the foot, i.e. the joint between the first metatarsal and first phalange
-
- 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
- A43B7/1485—Recesses or holes, traversing partially or completely the thickness of the pad
-
- 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
- A43B7/26—Footwear with health or hygienic arrangements with foot-supporting parts with toe-spacers or toe-spreaders
-
- 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
- A43B7/30—Protecting the ball-joint against pressure while standing
Definitions
- the present invention relates to footwear for alleviating pain in foot caused by hallux valgus.
- Hallux valgus refers to the symptom in which the big toe is in a laterally deviated state. That is, the tip of the big toe deflects toward the small toe side, while the root portion of the big toe is bent in a "V"-shape, to project toward the medial side in the foot width direction.
- sharp pain may be caused by the root portion of the big toe being brought into contact with the insole of the shoe. This may hinder walking.
- footwear for alleviating such pain in the foot caused by hallux valgus what is known is footwear in which a concave portion is formed at the insole at the position corresponding to the big toe (for example, see Patent Literature 1).
- the footwear is capable of reducing a weight load of a wearer acting on the big toe by the concave portion. Therefore, it can alleviate the pain in the foot while walking.
- the conventional footwear can alleviate pain in the foot caused by hallux valgus.
- the big toe itself is still in the laterally deviated state, the symptom of the hallux valgus itself cannot be improved.
- the lateral deviation portion of the big toe is brought into contact with the sidewall portion of the shoe, the pain in the foot cannot be fully alleviated.
- the present invention has been made in consideration of such circumstances, and an object of the present invention is to provide footwear capable of improving the symptom of hallux valgus while fully alleviating the pain in the foot caused by hallux valgus.
- Footwear of the present invention for achieving the object stated above includes: a concave portion formed at an insole at a position corresponding to a first site ranging from a ball of a big toe to a tip of the toe for alleviating a weight load of a wearer acting on the big toe; and a pressing portion formed at the insole at a position corresponding to a second site being adjacent to a heel side of the ball of the big toe for pressing the second site, a reaction force occurring by the pressing causing the first site to sink in the concave portion.
- the concave portion formed at the insole at the position corresponding to the first site ranging from the ball of the big toe to the tip of the toe can reduce the weight load of the wearer acting on the big toe.
- the pressing portion formed at the insole presses the second site being adjacent to the heel side of the ball of the big toe.
- the reaction force caused by the pressing allows the first site to sink in the concave portion. Accordingly, the big toe naturally enters the medially deviated state, to approximate the original normal state from the laterally deviated state.
- the symptom of hallux valgus can be improved.
- since it becomes possible to suppress the big toe from being brought into contact with the sidewall portion of the shoe, the pain in the foot can be further alleviated.
- the footwear further includes a lifting portion formed at the insole at a position corresponding to four toes except for the big toe, for lifting the four toes.
- a lifting portion formed at the insole at a position corresponding to four toes except for the big toe, for lifting the four toes.
- the lifting portion is formed to become gradually high from a second toe toward a small toe both included in the four toes, to cause a straight line connecting top ends of the four toes to be substantially horizontal.
- the straight line connecting the top ends of the four toes lifted by the lifting portion becomes substantially horizontal, it becomes possible to allow the weight load of the wearer to act on the four toes substantially uniformly.
- the weight of the wearer can be supported by the four toes in a further stable state.
- the lifting portion is provided with a projecting portion at the insole at a position corresponding to a clearance between a third toe and a fourth toe both included in the four toes, for widening the clearance.
- the projecting portion widens the clearance between the third toe and the fourth toe, the weight load of the wearer can be shared by a pair of two toes, i.e., the second toe and the third toe, and another pair of toes, i.e., the fourth toe and the small toe.
- weight of the wearer can be supported in a further stable state.
- FIG. 1 is a plan view showing a left-foot insole of footwear according to one embodiment of the present invention.
- FIG. 2 is a cross sectional view taken along A-A in FIG. 1 .
- an insole 3 of a shoe 1 being the footwear according to the present embodiment includes a concave portion 31 formed at the region corresponding to the big toe f1 of the foot f, a pressing portion 32 formed so as to be adjacent to the concave portion 31, and a lifting portion 33 formed at the region corresponding to the four toes f2 to f5 except for the big toe f1.
- the "insoleā refers to the element positioned at the bottom plane inside the footwear, and it includes a shoe insert placed on the bottom plane.
- the concave portion 31 is formed at the region corresponding to a first site ranging from the ball f1a of the big toe f1 to the tip of the toe.
- the cross-sectional shape of the concave portion 31 in the foot length direction is formed so as to conform to the ventral side shape of the big toe f1.
- the portion corresponding to the ball f1a of the big toe f1 is depressed the most deepest, and the portion corresponding to the ventral portion f1b of the big toe f1 toward the tip of the toe is formed to be gradually shallower accordingly.
- the pressing portion 32 is formed at the region corresponding to a second site adjacent to the heel side of the ball of the big toe f1a.
- the pressing portion 32 is configured to press the second site, so that the reaction force occurring by the pressing causes the first site to sink in the concave portion 31.
- the pressing force to the second site is set to be greater than the force exerted by a level plane naturally pressing the second site when the foot f is placed on the level plane.
- such sinking of the first site is realized by using the phenomenon of the first site naturally sinking in response to the pressing, which is performed by the pressing portion 32, acting on the tendon (abductor hallucis) connecting between the second site and the first site.
- the length L of the pressing portion 32 in the foot length direction is set to approximately 18 mm
- the length W in the foot width direction is set to approximately 50 mm.
- the cross-sectional shape of the pressing portion 32 in the foot length direction is formed as an inclined plane becoming gradually higher from the concave portion 31 toward the heel side.
- FIG. 3 is a cross sectional view taken along B-B in FIG. 1 .
- the pressing portion 32 is formed to have a cross-sectional shape in the foot width direction in which the portion from the lateral side (the left side in FIG. 3 ) to the center portion is substantially flat and the end on the medial side (the right side in FIG. 3 ) projects upward.
- the lifting portion 33 is formed at the region ranging from the tip of each of the second toe f2, the third toe f3, the fourth toe f4 and the small toe f5, through the root portion of the four toes f2 to f5, to the peripheral portion of the root portion of the four toes f2 to f5 on the heel side.
- FIG. 4 is a cross sectional view taken along C-C in FIG. 1 .
- the lifting portion 33 is formed to have a cross-sectional shape in the foot length direction of an inclined plane, which becomes gradually higher from the heel side (the left side in FIG. 4 ) toward the tip (the right side in FIG. 4 ) of the four toes f2 to f5.
- the lifting force is set to be greater than the force of a level plane naturally pressing the four toes f2 to f5 when the foot f is placed on the level plane.
- FIG. 5A is a cross sectional view taken along D-D in FIG. 1
- FIG. 5B is a cross sectional view taken along E-E in FIG. 1
- FIG. 5C is a cross sectional view taken along F-F in FIG. 1
- the cross-sectional shape of the lifting portion 33 in the foot width direction is formed as an inclined plane being continuous from the concave portion 31, i.e., becoming gradually higher from the second toe f2 toward the small toe f5.
- the inclination angle of the lifting portion 33 is set such that a straight line X connecting the top ends on the dorsal side of the four toes f2 to f5 becomes substantially horizontal.
- FIG. 6 is a cross sectional view taken along G-G in FIG. 1 .
- a projecting portion 33a is formed at the region corresponding to the clearance between the third toe f3 and the fourth toe f4.
- the projecting portion 33a is configured to widen the clearance between the third toe f3 and the fourth toe f4.
- the insole 3 is provided with the concave portion 31 at the portion corresponding to the first site ranging from the ball f1 a of the big toe f1 to the tip of the toe. Therefore, the weight load of the wearer acting on the big toe f1 can be reduced, and the pain in the foot f can be alleviated.
- the pressing portion 32 formed at the insole 3 presses the second site adjacent to the heel side of the ball of big toe f1a. The reaction force caused by the pressing allows the first site to sink in the concave portion 31. Accordingly, the big toe f1 naturally enters the medially deviated state, to approximate the original normal state from the laterally deviated state. Thus, the symptom of hallux valgus can be improved. Furthermore, since it becomes possible to suppress the big toe f1 from being brought into contact with the sidewall portion of the shoe 1, the pain in the foot f can be further alleviated.
- the four toes f2 to f5 except for the big toe f1 are lifted by the lifting portion 33, the clearance between each adjacent ones of the four toes f2 to f5 can be widened.
- the weight of the wearer can be supported by the four toes f2 to f5 in a stable state.
- the straight line X connecting the top ends on the dorsal side of the four toes f2 to f5 lifted by the lifting portion 33 becomes substantially horizontal, it becomes possible to allow the weight load of the wearer to act on the four toes f2 to f5 substantially uniformly. Thus, the weight of the wearer can be supported by the four toes f2 to f5 in a further stable state.
- the weight load of the wearer can be shared by a pair of two toes, i.e., the second toe f2 and the third toe f3, and another pair of two toes, i.e., the fourth toe f4 and the small toe f5.
- the weight of the wearer can be supported in a further stable state.
- the present invention is not limited to the embodiment described above.
- a shoe has been exemplarily shown as the footwear in the embodiment described above, the present invention is applicable also to footwear such as sandals, straw sandals, split-toed socks, wooden clogs or slippers.
- FIGS. 7 and 8 show the result of comparison verification as to the change in hallux valgus of a foot between before and after wearing the shoe according to the embodiment described above.
- FIG. 7 is a drawing-substituting photograph showing the state of a foot before wearing the shoe
- FIG. 8 is a drawing-substituting photograph showing the state of the foot wearing the shoe. The shoe in the photograph is shown only by the insole, so that the foot can be easily observed.
- the big toe is in the laterally deviated state, that is, the tip of the big toe is deflected toward the small toe, and the root portion of the big toe is bent in a "V"-shape, to project toward the medial side in the foot width direction (the left side in FIG. 7 ).
- the root portion of the big toe shown in FIG. 8 is suppressed from being projecting toward the medial side in the foot width direction, and it can be seen that the symptom of hallux valgus is improved.
- the clearance between each adjacent ones of the toes is widened, as compared to FIG. 7 .
- the widened clearance between the third toe and the fourth toe is considerably wider than the clearance shown in FIG. 7 .
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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)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
Description
- The present invention relates to footwear for alleviating pain in foot caused by hallux valgus.
- In recent years, an increasing number of people are suffering from hallux valgus, which is developed by continuous use of shoes not fitting to feet such as high-heeled women's shoes. Hallux valgus refers to the symptom in which the big toe is in a laterally deviated state. That is, the tip of the big toe deflects toward the small toe side, while the root portion of the big toe is bent in a "V"-shape, to project toward the medial side in the foot width direction. As the symptom of the hallux valgus progresses, sharp pain may be caused by the root portion of the big toe being brought into contact with the insole of the shoe. This may hinder walking.
- Conventionally, as footwear for alleviating such pain in the foot caused by hallux valgus, what is known is footwear in which a concave portion is formed at the insole at the position corresponding to the big toe (for example, see Patent Literature 1). The footwear is capable of reducing a weight load of a wearer acting on the big toe by the concave portion. Therefore, it can alleviate the pain in the foot while walking.
-
- Patent Literature 1: Japanese Examined Patent Publication
JP 4-020 608 B - The conventional footwear can alleviate pain in the foot caused by hallux valgus. However, since the big toe itself is still in the laterally deviated state, the symptom of the hallux valgus itself cannot be improved. Further, since the lateral deviation portion of the big toe is brought into contact with the sidewall portion of the shoe, the pain in the foot cannot be fully alleviated.
The present invention has been made in consideration of such circumstances, and an object of the present invention is to provide footwear capable of improving the symptom of hallux valgus while fully alleviating the pain in the foot caused by hallux valgus. - Footwear of the present invention for achieving the object stated above includes: a concave portion formed at an insole at a position corresponding to a first site ranging from a ball of a big toe to a tip of the toe for alleviating a weight load of a wearer acting on the big toe; and a pressing portion formed at the insole at a position corresponding to a second site being adjacent to a heel side of the ball of the big toe for pressing the second site, a reaction force occurring by the pressing causing the first site to sink in the concave portion.
- With the footwear of the present invention, the concave portion formed at the insole at the position corresponding to the first site ranging from the ball of the big toe to the tip of the toe can reduce the weight load of the wearer acting on the big toe. Further, the pressing portion formed at the insole presses the second site being adjacent to the heel side of the ball of the big toe. The reaction force caused by the pressing allows the first site to sink in the concave portion.
Accordingly, the big toe naturally enters the medially deviated state, to approximate the original normal state from the laterally deviated state. Thus, the symptom of hallux valgus can be improved. Furthermore, since it becomes possible to suppress the big toe from being brought into contact with the sidewall portion of the shoe, the pain in the foot can be further alleviated. - Further, it is preferable that the footwear further includes a lifting portion formed at the insole at a position corresponding to four toes except for the big toe, for lifting the four toes.
In this case, since the four toes except for the big toe are lifted by the lifting portion, the clearance between each adjacent ones of the four toes can be widened. Thus, even in the state where the first site of the big toe sinks in the concave portion as described above, the weight of the wearer can be supported by the four toes in a stable state. - Still further, it is preferable that the lifting portion is formed to become gradually high from a second toe toward a small toe both included in the four toes, to cause a straight line connecting top ends of the four toes to be substantially horizontal.
In this case, since the straight line connecting the top ends of the four toes lifted by the lifting portion becomes substantially horizontal, it becomes possible to allow the weight load of the wearer to act on the four toes substantially uniformly. Thus, the weight of the wearer can be supported by the four toes in a further stable state. - Still further, it is preferable that the lifting portion is provided with a projecting portion at the insole at a position corresponding to a clearance between a third toe and a fourth toe both included in the four toes, for widening the clearance.
In this case, since the projecting portion widens the clearance between the third toe and the fourth toe, the weight load of the wearer can be shared by a pair of two toes, i.e., the second toe and the third toe, and another pair of toes, i.e., the fourth toe and the small toe. Thus, weight of the wearer can be supported in a further stable state. -
- FIG. 1
- is a plan view showing an insole of footwear according to one embodiment of the present invention.
- FIG. 2
- is a cross sectional view taken along A-A in
FIG. 1 . - FIG. 3
- is a cross sectional view taken along B-B in
FIG. 1 . - FIG. 4
- is a cross sectional view taken along C-C in
FIG. 1 . - FIG. 5A
- is a cross sectional view taken along D-D in
FIG. 1 . - FIG. 5B
- is a cross sectional view taken along E-E in
FIG. 1 . - FIG. 5C
- is a cross sectional view taken along F-F in
FIG. 1 . - FIG. 6
- is a cross sectional view taken along G-G in
FIG. 1 . - FIG. 7
- is a drawing-substituting photograph showing the state of a foot before wearing the footwear.
- FIG. 8
- is a drawing-substituting photograph showing the state of the foot wearing the footwear.
- Next, with reference to the accompanying drawings, a description will be given of the preferred embodiment of the present invention.
FIG. 1 is a plan view showing a left-foot insole of footwear according to one embodiment of the present invention.FIG. 2 is a cross sectional view taken along A-A inFIG. 1 .
InFIG. 1 , aninsole 3 of ashoe 1 being the footwear according to the present embodiment includes aconcave portion 31 formed at the region corresponding to the big toe f1 of the foot f, apressing portion 32 formed so as to be adjacent to theconcave portion 31, and alifting portion 33 formed at the region corresponding to the four toes f2 to f5 except for the big toe f1. Here, the "insole" refers to the element positioned at the bottom plane inside the footwear, and it includes a shoe insert placed on the bottom plane. - In a planar view according to
FIG. 1 , theconcave portion 31 is formed at the region corresponding to a first site ranging from the ball f1a of the big toe f1 to the tip of the toe. As shown inFIG. 2 , the cross-sectional shape of theconcave portion 31 in the foot length direction (in the direction from the tip of toe to the heel) is formed so as to conform to the ventral side shape of the big toe f1.
More specifically, in connection with theconcave portion 31, the portion corresponding to the ball f1a of the big toe f1 is depressed the most deepest, and the portion corresponding to the ventral portion f1b of the big toe f1 toward the tip of the toe is formed to be gradually shallower accordingly. - In the planar view according to
FIG. 1 , thepressing portion 32 is formed at the region corresponding to a second site adjacent to the heel side of the ball of the big toe f1a. Thepressing portion 32 is configured to press the second site, so that the reaction force occurring by the pressing causes the first site to sink in theconcave portion 31. The pressing force to the second site is set to be greater than the force exerted by a level plane naturally pressing the second site when the foot f is placed on the level plane. - Further, such sinking of the first site is realized by using the phenomenon of the first site naturally sinking in response to the pressing, which is performed by the
pressing portion 32, acting on the tendon (abductor hallucis) connecting between the second site and the first site. The length L of thepressing portion 32 in the foot length direction is set to approximately 18 mm, and the length W in the foot width direction is set to approximately 50 mm.
As shown inFIG. 2 , the cross-sectional shape of thepressing portion 32 in the foot length direction is formed as an inclined plane becoming gradually higher from theconcave portion 31 toward the heel side. -
FIG. 3 is a cross sectional view taken along B-B inFIG. 1 . As shown inFIG. 3 , thepressing portion 32 is formed to have a cross-sectional shape in the foot width direction in which the portion from the lateral side (the left side inFIG. 3 ) to the center portion is substantially flat and the end on the medial side (the right side inFIG. 3 ) projects upward. - In the planar view according to
FIG. 1 , the liftingportion 33 is formed at the region ranging from the tip of each of the second toe f2, the third toe f3, the fourth toe f4 and the small toe f5, through the root portion of the four toes f2 to f5, to the peripheral portion of the root portion of the four toes f2 to f5 on the heel side. -
FIG. 4 is a cross sectional view taken along C-C inFIG. 1 . As shown inFIG. 4 , the liftingportion 33 is formed to have a cross-sectional shape in the foot length direction of an inclined plane, which becomes gradually higher from the heel side (the left side inFIG. 4 ) toward the tip (the right side inFIG. 4 ) of the four toes f2 to f5. Thus, the liftingportion 33 lifts the four toes f2 to f5. The lifting force is set to be greater than the force of a level plane naturally pressing the four toes f2 to f5 when the foot f is placed on the level plane. -
FIG. 5A is a cross sectional view taken along D-D inFIG. 1 ,FIG. 5B is a cross sectional view taken along E-E inFIG. 1 , andFIG. 5C is a cross sectional view taken along F-F inFIG. 1 . InFIGs. 5A to 5C , the cross-sectional shape of the liftingportion 33 in the foot width direction is formed as an inclined plane being continuous from theconcave portion 31, i.e., becoming gradually higher from the second toe f2 toward the small toe f5. As shown inFIG. 5A , the inclination angle of the liftingportion 33 is set such that a straight line X connecting the top ends on the dorsal side of the four toes f2 to f5 becomes substantially horizontal. -
FIG. 6 is a cross sectional view taken along G-G inFIG. 1 . As shown inFIG. 6 , in the liftingportion 33, a projectingportion 33a is formed at the region corresponding to the clearance between the third toe f3 and the fourth toe f4. The projectingportion 33a is configured to widen the clearance between the third toe f3 and the fourth toe f4. - With the
shoe 1 according to the present embodiment structured as described above, theinsole 3 is provided with theconcave portion 31 at the portion corresponding to the first site ranging from the ball f1 a of the big toe f1 to the tip of the toe. Therefore, the weight load of the wearer acting on the big toe f1 can be reduced, and the pain in the foot f can be alleviated.
Further, thepressing portion 32 formed at theinsole 3 presses the second site adjacent to the heel side of the ball of big toe f1a. The reaction force caused by the pressing allows the first site to sink in theconcave portion 31.
Accordingly, the big toe f1 naturally enters the medially deviated state, to approximate the original normal state from the laterally deviated state. Thus, the symptom of hallux valgus can be improved. Furthermore, since it becomes possible to suppress the big toe f1 from being brought into contact with the sidewall portion of theshoe 1, the pain in the foot f can be further alleviated. - Further, since the four toes f2 to f5 except for the big toe f1 are lifted by the lifting
portion 33, the clearance between each adjacent ones of the four toes f2 to f5 can be widened. Thus, even in the state where the first site of the big toe f1 sinks in theconcave portion 31, the weight of the wearer can be supported by the four toes f2 to f5 in a stable state. - Still further, since the straight line X connecting the top ends on the dorsal side of the four toes f2 to f5 lifted by the lifting
portion 33 becomes substantially horizontal, it becomes possible to allow the weight load of the wearer to act on the four toes f2 to f5 substantially uniformly. Thus, the weight of the wearer can be supported by the four toes f2 to f5 in a further stable state. - Still further, since the projecting
portion 33a formed at the liftingportion 33 makes it possible to widen the clearance between the third toe f3 and the fourth toe f4, the weight load of the wearer can be shared by a pair of two toes, i.e., the second toe f2 and the third toe f3, and another pair of two toes, i.e., the fourth toe f4 and the small toe f5. Thus, the weight of the wearer can be supported in a further stable state. - Note that the present invention is not limited to the embodiment described above. For example, though a shoe has been exemplarily shown as the footwear in the embodiment described above, the present invention is applicable also to footwear such as sandals, straw sandals, split-toed socks, wooden clogs or slippers.
-
FIGS. 7 and8 show the result of comparison verification as to the change in hallux valgus of a foot between before and after wearing the shoe according to the embodiment described above.FIG. 7 is a drawing-substituting photograph showing the state of a foot before wearing the shoe, andFIG. 8 is a drawing-substituting photograph showing the state of the foot wearing the shoe. The shoe in the photograph is shown only by the insole, so that the foot can be easily observed. - With the foot shown in
FIG. 7 , it can be seen that the big toe is in the laterally deviated state, that is, the tip of the big toe is deflected toward the small toe, and the root portion of the big toe is bent in a "V"-shape, to project toward the medial side in the foot width direction (the left side inFIG. 7 ). - On the other hand, as compared to
FIG. 7 , the root portion of the big toe shown inFIG. 8 is suppressed from being projecting toward the medial side in the foot width direction, and it can be seen that the symptom of hallux valgus is improved. Further, it can be seen that, in connection with the four toes except for the big toe shown inFIG. 8 , the clearance between each adjacent ones of the toes is widened, as compared toFIG. 7 . In particular, it can be seen that the widened clearance between the third toe and the fourth toe is considerably wider than the clearance shown inFIG. 7 . -
- 1
- = SHOE (FOOTWEAR)
- 3
- = INSOLE
- 31
- = CONCAVE PORTION
- 32
- = PRESSING PORTION
- 33
- = LIFTING PORTION
- 33a
- = PROJECTING PORTION
- f1
- = BIG TOE
- f1a
- = BALL OF BIG TOE
- f2
- = SECOND TOE
- f3
- = THIRD TOE
- f4
- = FOURTH TOE
- f5
- = SMALL TOE
- X
- = STRAIGHT LINE
Claims (4)
- A footwear comprising:- a concave portion formed at an insole at a position corresponding to a first site ranging from a ball of a big toe to a tip of the toe for alleviating a weight load of a wearer acting on the big toe; and- a pressing portion formed at the insole at a position corresponding to a second site being adjacent to a heel side of the ball of the big toe for pressing the second site, a reaction force occurring by the pressing causing the first site to sink in the concave portion.
- The footwear according to claim 1,
further comprising
a lifting portion formed at the insole at a position corresponding to four toes except for the big toe, for lifting the four toes. - The footwear according to claim 2,
wherein the lifting portion is formed to become gradually high from a second toe toward a small toe both included in the four toes, to cause a straight line connecting top ends of the four toes to be substantially horizontal. - The footwear according to claim 3,
wherein the lifting portion is provided with a projecting portion at the insole at a position corresponding to a clearance between a third toe and a fourth toe both included in the four toes, for widening the clearance.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010259047A JP5259682B2 (en) | 2010-11-19 | 2010-11-19 | footwear |
PCT/JP2011/053490 WO2012066793A1 (en) | 2010-11-19 | 2011-02-18 | Footwear |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2641495A1 true EP2641495A1 (en) | 2013-09-25 |
EP2641495A4 EP2641495A4 (en) | 2014-08-27 |
EP2641495B1 EP2641495B1 (en) | 2018-07-25 |
Family
ID=46083739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11840895.4A Active EP2641495B1 (en) | 2010-11-19 | 2011-02-18 | Footwear |
Country Status (6)
Country | Link |
---|---|
US (1) | US20130227859A1 (en) |
EP (1) | EP2641495B1 (en) |
JP (1) | JP5259682B2 (en) |
CN (1) | CN103249322A (en) |
BR (1) | BR112013012498A2 (en) |
WO (1) | WO2012066793A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010028889A1 (en) * | 2010-05-11 | 2012-04-19 | Kom*Sport Kompetenzzentrum Sport Gbr Vertreten Durch Oliver Elsenbach | Shoe insert and shoe |
CN106455751B (en) * | 2014-01-17 | 2019-10-01 | ē²¾åčæåØęéå ¬åø | Insole for sport footwear |
US20160249705A1 (en) * | 2015-02-26 | 2016-09-01 | Vitaly Leonidovich KAGANOVICH | High-heel shoes |
JP6865916B1 (en) * | 2020-05-29 | 2021-04-28 | ę Ŗå¼ä¼ē¤¾ļ¼§ļ½ļ½ļ½ ļ¼§ļ½ļ½ļ½ļ½ļ½ļ½ ļ¼Ŗļ½ļ½ļ½ļ½ | Inner sole or footwear |
IT202000009838A1 (en) * | 2020-05-05 | 2021-11-05 | Gaittech S R L | COMPONENT FOR A FOOTWEAR. |
US20220400811A1 (en) * | 2021-06-22 | 2022-12-22 | Michael A. Garza, SR. | Reversed arch shoes |
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US1850977A (en) * | 1930-03-01 | 1932-03-22 | Musebeck Shoe Company | Footwear |
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DE8214895U1 (en) * | 1982-05-21 | 1982-08-26 | Top-Man Oy, 65100 VĆ„sa | Insole for shoes, sandals or the like |
EP0995364A1 (en) * | 1998-10-23 | 2000-04-26 | Astra S.A.S. di Marcocci Giuseppe & C. | Especially comfortable anatomical arch support |
US6604301B1 (en) * | 2000-07-10 | 2003-08-12 | II Arthur Manoli | Shoe sole insert |
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FR1069205A (en) * | 1952-12-24 | 1954-07-06 | Footwear, or other footwear, adapted to the anatomy of the foot | |
US3766669A (en) * | 1969-08-21 | 1973-10-23 | Usm Corp | Profiled cellular article |
IN145239B (en) * | 1975-05-16 | 1978-09-16 | M Delport | |
US4272899A (en) * | 1979-10-15 | 1981-06-16 | Brooks Jeffrey S | Footwear |
ID16876A (en) * | 1996-05-06 | 1997-11-20 | Payless Shoesource Inc | COMBINATIONS IN AND OUTSIDE SOL |
US6182380B1 (en) * | 1998-06-16 | 2001-02-06 | Paul Liley | Demi pointe equalizer, exerciser, and tensioning device |
US20030005601A1 (en) * | 1999-04-07 | 2003-01-09 | Iwao Kasahara | Corrective appliance mounted to footwear for correcting and preventing deformity of a foot |
US6874258B2 (en) * | 1999-12-21 | 2005-04-05 | Cluffy Biomedical Llc | Orthopedic shoe appliance and method |
KR100338780B1 (en) | 2000-09-15 | 2002-06-01 | ģ¤ģ¢ ģ© | Semiconductor memory device for reducing the damage of interlevel dielectric layer, and fabrication method thereof |
FR2858525B1 (en) * | 2003-08-05 | 2006-01-27 | Jean Luc Rhenter | PLANT SOIL WITH SELECTIVE DAMPING |
US20050086838A1 (en) * | 2003-10-24 | 2005-04-28 | Khantzis Carlos A. | Shoe sole to improve walking, sensory response of the toes, and help develop leg muscles |
JP2006198399A (en) * | 2004-12-24 | 2006-08-03 | Hideki Ikehara | Insole for footwear or shoes |
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US20070277397A1 (en) * | 2006-05-30 | 2007-12-06 | Wen-Lung Chen | Insole |
JP2008161344A (en) * | 2006-12-27 | 2008-07-17 | Iwao Kasahara | Correcting sock for hallux valgus and digitus minimus varus |
CN201299148Y (en) * | 2008-10-31 | 2009-09-02 | å¼ ę¶ | Five-toed shoes |
JP5478114B2 (en) * | 2009-05-15 | 2014-04-23 | å°ęč£½č¬ę Ŗå¼ä¼ē¤¾ | Foot pads and footwear and insoles with the foot pads |
-
2010
- 2010-11-19 JP JP2010259047A patent/JP5259682B2/en active Active
-
2011
- 2011-02-18 US US13/883,657 patent/US20130227859A1/en not_active Abandoned
- 2011-02-18 CN CN2011800552355A patent/CN103249322A/en active Pending
- 2011-02-18 BR BR112013012498A patent/BR112013012498A2/en not_active IP Right Cessation
- 2011-02-18 WO PCT/JP2011/053490 patent/WO2012066793A1/en active Application Filing
- 2011-02-18 EP EP11840895.4A patent/EP2641495B1/en active Active
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US1850977A (en) * | 1930-03-01 | 1932-03-22 | Musebeck Shoe Company | Footwear |
US2961780A (en) * | 1958-04-03 | 1960-11-29 | Roger F Mcmanus | Bottom filler for welt shoes |
DE8214895U1 (en) * | 1982-05-21 | 1982-08-26 | Top-Man Oy, 65100 VĆ„sa | Insole for shoes, sandals or the like |
EP0995364A1 (en) * | 1998-10-23 | 2000-04-26 | Astra S.A.S. di Marcocci Giuseppe & C. | Especially comfortable anatomical arch support |
US6604301B1 (en) * | 2000-07-10 | 2003-08-12 | II Arthur Manoli | Shoe sole insert |
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Also Published As
Publication number | Publication date |
---|---|
EP2641495A4 (en) | 2014-08-27 |
BR112013012498A2 (en) | 2016-09-06 |
EP2641495B1 (en) | 2018-07-25 |
US20130227859A1 (en) | 2013-09-05 |
CN103249322A (en) | 2013-08-14 |
JP5259682B2 (en) | 2013-08-07 |
WO2012066793A1 (en) | 2012-05-24 |
JP2012105926A (en) | 2012-06-07 |
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