JP5259682B2 - footwear - Google Patents

Description

  The present invention relates to footwear for reducing foot pain due to hallux valgus.

  In recent years, an increasing number of people develop hallux valgus by continuing to wear shoes that do not fit their feet, such as women's shoes with high heels. Hallux valgus is a symptom in which the thumb is valgus, that is, the fingertip of the thumb is warped toward the little finger, and the base of the thumb is bent into a "<" shape and protrudes inward in the foot width direction. . As the valgus symptom progresses, the base of the thumb hits the insole of the shoe, causing severe pain and making walking difficult.

  Conventionally, as footwear for relieving foot pain due to such a hallux valgus, one having a recess formed in the insole corresponding to the thumb is known (for example, see Patent Document 1). Since the footwear can reduce the weight load of the wearer acting on the thumb by the recess, the foot pain during walking can be alleviated.

Japanese Patent Publication No. 4-20608

Conventional footwear can relieve foot pain caused by hallux valgus, but the thumb is still valgus and cannot improve the hallux symptom itself. In addition, since the valgus part of the thumb contacts the side wall of the shoe, the foot pain cannot be alleviated sufficiently.
This invention is made in view of such a situation, and it aims at providing the footwear which can improve the symptom of hallux valgus, fully relieving the pain of the foot by hallux valgus. .

In order to achieve the above object, a footwear of the present invention is formed on an insole corresponding to a first part from a thumb ball to a fingertip of a thumb, and is a recess for reducing the weight load of the wearer acting on the thumb. If, formed in the bottom inside corresponding to the second site adjacent to the heel side of the mother趾球, with the pressing portion for lowering said first portion in the recess by its reaction against the second portion wherein A holding portion that is formed on an insole corresponding to four fingers excluding the thumb and lifts the four fingers, and the holding portion is arranged so that a straight line connecting the upper ends of the four fingers is substantially horizontal. It is characterized by being gradually formed higher from the index finger of the finger toward the little finger .

  According to the footwear of the present invention, the weight load on the wearer acting on the thumb can be reduced by the recess formed in the insole corresponding to the first part from the thumb ball to the fingertip of the thumb. In addition, the pressing portion formed on the insole presses the second portion adjacent to the heel side of the main ball, and the first portion is lowered into the recess by the reaction, so that the thumb is released from the state in which the thumb is turned outward. It becomes a state that is naturally confused so as to approach the normal state. Thereby, while being able to improve the symptom of hallux valgus, it can suppress that a thumb hits the side wall part of shoes, Therefore The pain of a leg can further be eased.

Further, by a four-finger except the thumb is lifted by the lifting part, it is possible to widen the gaps between the fingers of adjacent four fingers. Thereby, even if it is the state which lowered | hung the 1st site | part of the thumb in the recessed part as mentioned above, a wearer's weight can be supported in the stable state with four fingers.

In addition , since the straight line connecting the upper ends of the four fingers lifted by the holding portion becomes substantially horizontal, the weight load of the wearer can be applied to the four fingers substantially evenly. Thereby, the wearer's weight can be supported in a more stable state by the four fingers.

Moreover, it is preferable that the holding | maintenance part is formed with the protrusion part for expanding the said clearance gap in the insole corresponding to the clearance gap between the middle finger of said four fingers, and a ring finger.
In this case, since the gap between the middle finger and the ring finger is widened by the protrusion, the pair of two fingers composed of the index finger and the middle finger and the pair of two fingers composed of the ring finger and the little finger may receive the weight load of the wearer. it can. Thereby, a wearer's weight can be supported in the more stable state.

  According to the footwear of the present invention, the load on the wearer acting on the thumb can be reduced, and the thumb can be naturally varnished. The symptoms of hallux valgus can be improved while sufficiently relaxing.

It is a top view showing an insole of footwear concerning one embodiment of the present invention. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is CC sectional drawing of FIG. (A) is DD sectional drawing of FIG. 1, (b) is EE sectional drawing of FIG. 1, (c) is FF sectional drawing of FIG. It is GG sectional drawing of FIG. It is a drawing substitute photograph which shows the state of the foot before putting on the footwear. 3 is a drawing-substituting photograph showing a state of a foot wearing the footwear.

  Next, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a plan view showing an insole on the left foot side of footwear according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line AA of FIG. In FIG. 1, an insole 3 of a shoe 1 that is footwear of the present embodiment includes a concave portion 31 formed in a region corresponding to the thumb f1 of a foot f, and a pressing portion 32 formed adjacent to the concave portion 31. , And a holding portion 33 formed in a region corresponding to the four fingers f2 to f5 excluding the thumb f1. Here, “insole” means one located on the bottom surface inside the footwear, and includes an insole laid on the bottom surface.

  The recess 31 is formed in a region corresponding to the first part from the base ball f1a of the thumb f1 to the fingertip in the plan view of FIG. The cross-sectional shape of the recess 31 in the foot length direction (direction from the fingertip to the heel) is formed along the shape of the ventral side of the thumb f1, as shown in FIG. More specifically, the portion of the recess 31 corresponding to the baseball f1a of the thumb f1 is recessed most deeply, and the portion corresponding to these is formed gradually shallower from the abdomen f1b of the thumb f1 toward the fingertip. ing.

  The pressing portion 32 is formed in a region corresponding to the second portion adjacent to the heel side of the main ball f1a in the plan view of FIG. 1. The pressing portion 32 presses the second portion and reacts to the first portion. Is lowered into the recess 31. The pressing force against the second part is set to a force stronger than the force with which the horizontal surface naturally presses the second part when the foot f is placed on the horizontal surface.

  In addition, the first part is lowered by utilizing the fact that the first part naturally falls due to the pressing by the pressing portion 32 acting on the tendon (the ankle abductor muscle) that connects the second part and the first part. It is a thing. The length L of the pressing portion 32 in the foot length direction is set to about 18 mm, and the length W in the foot width direction is set to about 50 mm. As shown in FIG. 2, the cross-sectional shape of the pressing portion 32 in the foot length direction is formed as an inclined surface that gradually increases from the concave portion 31 toward the heel side.

  3 is a cross-sectional view taken along the line B-B of FIG. 1, and the cross-sectional shape of the pressing portion 32 in the foot width direction is formed to be substantially flat from the outside (left side of FIG. 3) to the center portion as shown in FIG. 3. The inner end (right side in FIG. 3) protrudes upward.

  The holding portion 33 is formed in a region corresponding to the base portion of the four fingers f2 to f5 and the peripheral portion on the heel side from the fingertips of the index finger f2, the middle finger f3, the ring finger f4, and the little finger f5 in the plan view of FIG. Has been.

  4 is a cross-sectional view taken along the line CC of FIG. As shown in FIG. 4, the cross-sectional shape of the holding portion 33 in the foot length direction is an inclined surface that gradually increases from the heel side (left side in FIG. 4) toward the fingertips of the four fingers f2 to f5 (right side in FIG. 4). It is formed as. Thereby, the holding part 33 raises the four fingers f2 to f5. The lifting force is set to be stronger than the force with which the horizontal plane naturally presses the four fingers f2 to f5 when the foot f is placed on the horizontal plane.

  5A is a sectional view taken along the line DD in FIG. 1, FIG. 5B is a sectional view taken along the line EE in FIG. 1, and FIG. 5C is a sectional view taken along the line FF in FIG. 5A to 5C, the cross-sectional shape in the foot width direction of the holding portion 33 is formed as an inclined surface that continues from the concave portion 31, and is gradually increased from the index finger f2 toward the little finger f5. As shown in FIG. 5A, the inclination angle of the holding portion 33 is set so that the straight line X connecting the upper ends of the dorsal sides of the four fingers f2 to f5 is substantially horizontal.

  6 is a cross-sectional view taken along the line GG in FIG. As shown in FIG. 6, a protrusion 33a is formed on the holding portion 33 in a region corresponding to the gap between the middle finger f3 and the ring finger f4. The protruding portion 33a widens the gap between the middle finger f3 and the ring finger f4.

  According to the shoe 1 of the present embodiment configured as described above, since the concave portion 31 is formed in the insole 3 corresponding to the first part from the main ball f1a of the thumb f1 to the fingertip, The weight load of the wearer who acts can be reduced, and the pain of the foot f can be reduced. Further, the second portion adjacent to the heel side of the main ball f1a is pressed by the pressing portion 32 formed on the insole 3, and the first portion is lowered into the recess 31 by the reaction, so that the thumb f1 is valgus. It becomes a state that is naturally confused so as to approach the original normal state from the state that has been done. Thereby, while being able to improve the symptom of hallux valgus and being able to suppress that thumb f1 hits the side wall part of shoes 1, the pain of foot f can further be eased.

  Further, since the four fingers f2 to f5 except the thumb f1 are lifted by the holding portion 33, the gap between the adjacent fingers of the four fingers f2 to f5 can be widened. Thereby, even if it is in the state where the 1st site | part of thumb f1 was lowered | hung in the recessed part 31, a wearer's weight can be supported in the state stabilized with the four fingers f2-f5.

  In addition, since the straight line X connecting the upper ends of the dorsal sides of the four fingers f2 to f5 lifted by the holding portion 33 is substantially horizontal, the weight load of the wearer acts substantially equally on the four fingers f2 to f5. Can be made. Thereby, the wearer's weight can be supported in a more stable state by the four fingers f2 to f5.

    In addition, since the gap between the middle finger f3 and the ring finger f4 can be widened by the protrusion 33a formed on the holding portion 33, a pair of two fingers including the index finger f2 and the middle finger f3, and two pairs including the ring finger f4 and the little finger f5. Each pair of fingers can receive the weight load of the wearer. Thereby, a wearer's weight can be supported in the more stable state.

  The present invention is not limited to the above embodiment. For example, in the above embodiment, shoes are exemplified as footwear, but the present invention can also be applied to footwear such as sandals, sandals, socks, clogs, and slippers.

  7 and 8 show the results of comparative verification of changes in the hallux valgus of the foot between the state before the shoe of the above embodiment and the state of wearing the shoe. FIG. 7 is a drawing-substituting photograph showing the state of the foot before wearing the shoes, and FIG. 8 is a drawing-substituting photograph showing the state of the foot wearing the shoes, and the shoe of this photograph is easy to observe the foot. So that only the insole.

  The foot of FIG. 7 is in a state in which the thumb is flipped, that is, the tip of the thumb is warped toward the little finger, and the base of the thumb is bent into a “<” shape and protrudes inward in the foot width direction (left side in FIG. 7). It turns out that it is in a state.

  On the other hand, compared with FIG. 7, the thumb of FIG. 8 shows that the protrusion of the base portion toward the inside in the foot width direction is suppressed, and it can be seen that the symptoms of hallux valgus are improved. Further, it can be seen that the gap between the adjacent fingers of the four fingers excluding the thumb of FIG. 8 is wider than that of FIG. In particular, it can be seen that the gap between the middle finger and the ring finger is considerably wider than the gap in FIG.

1 shoes (footwear)
3 Middle bottom 31 Concave portion 32 Pressing portion 33 Lifting portion 33a Protruding portion f1 Thumb f1a Tail ball f2 Index finger f3 Middle finger f4 Ring finger f5 Little finger X Straight line

Claims (2)

A recess for reducing the weight load of the wearer acting on the thumb, formed on the insole corresponding to the first part from the thumb ball to the fingertip;
A pressing portion that is formed on an insole corresponding to a second portion adjacent to the heel side of the main ball, presses the second portion, and lowers the first portion into the recess by its reaction;
Formed on the insole corresponding to the four fingers excluding the thumb, and a holding portion for lifting the four fingers,
The footwear is characterized in that the holding portion is formed so as to be gradually higher from the four index fingers toward the little finger in order to make a straight line connecting the upper ends of the four fingers substantially horizontal . The footwear according to claim 1 , wherein a projecting portion for widening the gap is formed on an inner bottom corresponding to the gap between the middle finger and the ring finger of the four fingers .