JP5013761B2 - Soles, footwear and pads - Google Patents

Description

  The present invention relates to footwear such as women's pump shoes and men's shoes, a shoe sole used for footwear, and a pad that can be retrofitted to the shoe sole of ready-made footwear.

For example, shoe soles are used for footwear such as women's pump shoes and men's shoes (see Patent Document 1 to Patent Document 3), and these shoe soles have substantially the same thickness throughout. In general, in order to ensure a smooth walking, it is necessary to improve the flexibility of the stepped-back portion of the shoe sole.
JP 2002-282012 A JP 2005-111072 A JP 2003-210207 A

  However, for people with deformed diseases such as hallux valgus and rheumatoid arthritis, increasing the flexibility of the stepped-back part of the sole increases the dorsiflexion angle of the metatarsal joint and increases pain associated with walking There is a problem.

  Therefore, in order to solve the above-mentioned problem, the present invention includes a novelly constructed sole and a novelly configured sole that can increase the rolling property and the walking kinetic energy efficiency while increasing the rigidity of the stepping portion. It is an object of the present invention to provide a pad having a new configuration in which the main part is shared with a shoe sole having a new configuration and a shoe sole having a new configuration.

In order to achieve the above object, the invention described in claim 1
The back surface on the footwear side is formed flat, and the stepped-back portion (13) and the buckle pressure receiving portion (17) in the toe-side portion (15) of the surface on the grounding side are connected by embossing treatment. A shoe sole formed as a
The stepping back part (13)
The middle foot phalanx joint part (Fa) can receive pressure from the inner end of the foot of the middle foot phalanx joint part (Fa) to the outer end of the foot of the middle foot phalanx joint part (Fa). thick formed of band-like region such that, and, the width portion of the fifth metatarsal side than the width of the inner end portion of the foot of the outer end of the foot of the strip-like region wide in the heel side Forming,
The said heel pressure part (17) contained in the said toe side part (15),
The first inner side of the foot of the toe side portion (15) that faces the point near the center of the toe side portion (15) and the point near the center of the toe side portion (15) substantially downward. A first front side connecting the end points;
On the toe side on a straight line passing from a point near the center of the toe side portion (15) to a point near the center of the second front side that is the front side of the band-like region that is the turning back portion (13) A first vertical side that is a side connecting a point near the center of the portion (15) and a point near the center of the second front side of the belt-like region;
A third front side that is a side between a point near the center of the second front side and a second inner end point on the inside of the foot of the toe side portion (15) of the second front side; ,
The first inner end point and the third front side on the inner side of the foot of the toe side portion (15) facing substantially downward to a point near the center of the toe side portion (15) on the straight line A second vertical side that is a part of the inner side of the foot of the toe side portion (15) connecting the second inner end point of the inner side of the foot,
A square region connected to the stepped-back portion (13), and the square region is subjected to the dotted embossing treatment;
Further, the toe side portion (15) is a shoe sole characterized in that the thickness is gradually reduced toward the toe side than the stepped-back portion.

According to a feature of the invention described in claim 1, so that Stepping seen flashing portion permits receiving the intermediate metatarsophalangeal joints over the inner end of the metatarsophalangeal joints of the foot to the outer edge of the foot since forming a thick band-like region such, while increasing the rigidity of the tread-back portion of the sole, by setting the toe spring, it is possible to enhance the rolling of the shoe sole.

Further, according to a feature of the invention described in claim 1, part of the nail tip side, because they are formed so that the thickness gradually becomes thinner than Stepping look-back portion toward the toe side, in the gait cycle The foot load center point trajectory in the stance phase extends in the vertical direction on the sole side from the buttocks, and then extends from the outside of the foot toward the tip of the toe portion. Thereby, the locus | trajectory length of the load center point locus | trajectory in the stance phase in a walk cycle can be shortened, and walk kinetic energy efficiency can be improved.

Further, according to the feature of the invention described in claim 1, since the buckle pressure receiving portion included in the stepped-back portion and the toe-side portion has been subjected to dotted embossing processing, Ru it is possible to suppress the slip of the ground with respect to the pressure receiving portion.

The invention according to claim 2 is the shoe sole according to claim 1, wherein the front end of the stepped-back portion is inclined obliquely so that the outer end is located closer to the toe side of the foot than the inner end. On the other hand, the rear end of the stepped-back portion facing the front end with a gap is concave between the outer end and the inner end toward the front end side of the stepped-up portion. It is formed in an arcuate curved recessed Ru sole der characterized by.

In order to achieve the above object, the invention described in claim 3
The back surface on the footwear side is formed flat, and the stepped-back portion (13) and the buckle pressure receiving portion (17) in the toe-side portion (15) of the surface on the grounding side are connected by embossing treatment. Footwear having a shoe sole formed as a
The stepping back part (13)
The middle foot phalanx joint part (Fa) can receive pressure from the inner end of the foot of the middle foot phalanx joint part (Fa) to the outer end of the foot of the middle foot phalanx joint part (Fa). thick formed of band-like region such that, and, the width portion of the fifth metatarsal side than the width of the inner end portion of the foot of the outer end of the foot of the strip-like region wide in the heel side formed,
The said heel pressure part (17) contained in the said toe side part (15),
The first inner side of the foot of the toe side portion (15) that faces the point near the center of the toe side portion (15) and the point near the center of the toe side portion (15) substantially downward. A first front side connecting the end points;
On the toe side on a straight line passing from a point near the center of the toe side portion (15) to a point near the center of the second front side that is the front side of the band-like region that is the turning back portion (13) A first vertical side that is a side connecting a point near the center of the portion (15) and a point near the center of the second front side of the belt-like region;
A third front side that is a side between a point near the center of the second front side and a second inner end point on the inside of the foot of the toe side portion (15) of the second front side; ,
The first inner end point and the third front side on the inner side of the foot of the toe side portion (15) facing substantially downward to a point near the center of the toe side portion (15) on the straight line A second vertical side that is a part of the inner side of the foot of the toe side portion (15) connecting the second inner end point of the inner side of the foot,
A square region which is connected to the stepping-back portion (13), the embossing process of dotted shape is decorated with the square area,
Further, the toe side portion (15) is footwear characterized in that the thickness is gradually reduced toward the toe side than the stepped back portion.

Moreover, inventions described in 請 Motomeko 4, in footwear of claim 3, the front end of the stepping-back portion is obliquely as the outer end is located on the toe side of the foot than the inner end On the other hand, the rear end of the stepped-back portion that is formed in an inclined substantially straight line and is opposed to the front end with a gap is between the outer end and the inner end toward the front end side of the stepped-up portion. It is footwear characterized by being formed in the shape of a concave arcuate curve .

In order to achieve the above object, the invention according to claim 5 provides:
A pad that can be retrofitted onto the sole of ready-made footwear,
The pad has a flat back surface on the footwear side, and embosses the stepped-back portion (13) and the buckle pressure-receiving portion (17) in the toe-side portion (15) of the front surface that is the grounding side. And connected to form,
The stepping back part (13)
The middle foot phalanx joint part (Fa) can receive pressure from the inner end of the foot of the middle foot phalanx joint part (Fa) to the outer end of the foot of the middle foot phalanx joint part (Fa). thick formed of band-like region such that, and, the width portion of the fifth metatarsal side than the width of the inner end portion of the foot of the outer end of the foot of the strip-like region wide in the heel side Forming,
The said heel pressure part (17) contained in the said toe side part (15),
The first inner side of the foot of the toe side portion (15) that faces the point near the center of the toe side portion (15) and the point near the center of the toe side portion (15) substantially downward. A first front side connecting the end points;
On the toe side on a straight line passing from a point near the center of the toe side portion (15) to a point near the center of the second front side that is the front side of the band-like region that is the turning back portion (13) A first vertical side that is a side connecting a point near the center of the portion (15) and a point near the center of the second front side of the belt-like region;
A third front side that is a side between a point near the center of the second front side and a second inner end point on the inside of the foot of the toe side portion (15) of the second front side; ,
The first inner end point and the third front side on the inner side of the foot of the toe side portion (15) facing substantially downward to a point near the center of the toe side portion (15) on the straight line A second vertical side that is a part of the inner side of the foot of the toe side portion (15) connecting the second inner end point of the inner side of the foot,
A square region connected to the stepped-back portion (13), and the square region is subjected to the dotted embossing treatment;
Further, the toe side portion (15) is a pad formed so as to be gradually thinner than the stepped-back portion toward the toe side.

Further, the invention according to claim 6 is the pad according to claim 5, wherein the front end of the stepped-back portion is inclined obliquely so that the outer end is located closer to the toe side of the foot than the inner end. On the other hand, the rear end of the stepped-back portion that is formed in a substantially straight line and is opposed to the front end with a gap is concave between the outer end and the inner end toward the front end side of the stepped-up portion. Ru pad der, characterized in that it is formed in the concave arcuate curved.

According to the shoe sole according to claim 1 and 2, and the footwear according to claim 3 and 4, the rolling property of the shoe sole and the walking kinetic energy efficiency are improved while increasing the rigidity of the stepped-back portion of the shoe sole. Even if a person has a deformity such as hallux valgus or rheumatoid arthritis, the dorsiflexion angle of the metatarsal joint of the foot is reduced to reduce the pain associated with walking while walking smoothly. Can be secured.

Further, according to the footwear according to the sole and in the claims 3 and 4 according to claim 1, the slip between the ground against the mother趾受pressure section included in the portion of Stepping seen flashing portion and toe-side Since it can suppress, the transmission efficiency of walking propulsion force can be improved and smoother walking can fully be ensured.

Further, according to the pad according to 請 Motomeko 5,6, while increasing the rigidity of the tread-back portion of the pad, it is possible to increase the rolling resistance and locomotor energy efficiency of the sole, hallux valgus, joint Even a person with a deformed disease such as rheumatism can secure a smooth walking while reducing the pain associated with walking by reducing the dorsiflexion angle of the midfoot toe joint of the foot.

(First embodiment)
A first embodiment of the present invention will be described with reference to FIGS.

  1A is a view of FIG. 1B viewed from the left, FIG. 1B is a plan view of a shoe sole according to the first embodiment, and FIG. 1A is FIG. FIG. 2 is a diagram of (b) as viewed from the right, FIG. 2 is a perspective view of the women's pump shoes according to the first embodiment as viewed from below, and FIG. 3 is a diagram illustrating a foot contact state in the stance phase during the walking cycle. FIG. 4 is a diagram showing the load center point locus of the foot in the stance phase during the walking cycle.

  First, before explaining the women's pump shoes and the sole according to the first embodiment, the foot load center point trajectory of the human walking cycle and the stance phase during the walking cycle will be described.

  A person's walking cycle is roughly classified into a stance phase and a swing phase, and walking is performed by alternately repeating the stance phase and the swing phase. Also, as shown in FIG. 3, the stance phase is subdivided into heel contact, sole contact, heel release, toe release, and toe release. In the stance phase during the walking cycle, the dorsiflexion angle of the midfoot phalanx joint Fa of the foot F increases from the heel to the toes.

  As shown in FIG. 4, when the walking speed is slow, the load center point trajectory of the foot F in the stance phase during the walking cycle is in the vertical direction on the foot outer side Fc from the buttocks Fb (vertical direction in FIG. 4). Is then extended from the lateral foot portion Fc over the metatarsal joint joint Fa along the sole lateral direction (left and right direction in FIG. 4), and finally from the metatarsal joint joint Fa to the toe portion Fd. It extends toward the tip of the. Further, when the walking speed is considerably increased, the load center point trajectory of the foot F in the stance phase during the walking cycle extends from the buttock Fb toward the tip of the buttock Fd. That is, when the walking speed increases and the walking kinetic energy efficiency increases, the trajectory length of the load center point trajectory of the foot F in the stance phase during the walking cycle becomes shorter.

  As shown in FIG. 2, a women's pump 1 according to the first embodiment is an example of footwear and includes an upper 3, and the upper 3 is made of cowhide. An insole 5 is joined to the periphery of the upper 3. Further, a heel 7 is provided at the rear part (the right part in FIG. 2) of the back surface (lower surface) of the midsole 5, and a heel top 9 is provided at the tip of the heel 7.

  A shoe sole 11 is provided from the back surface of the insole to the front portion of the heel 7 (the left portion in FIG. 2). The shoe sole 11 is made of a material such as rubber, EAV, or plastic. And the specific structure of the shoe sole 11 used for the pumps 1 for women is as follows.

  That is, as shown in FIGS. 1A, 1B, and 1C, the stepping-back portion 13 of the shoe sole 11 is capable of receiving pressure on the midfoot phalanx joint Fa of the foot F, and the lateral direction of the shoe sole (see FIG. 1 (a) and (c), the front and back direction toward the paper surface, the left and right direction in FIG. 1 (b)) downward (leftward in FIG. 1 (a), front surface toward the paper surface in FIG. 1 (b), 1 (c) to the right). Note that the stepped-back portion 13 of the shoe sole 11 may be formed in a convex shape other than the convex arc shape instead of being formed in a convex arc shape across the shoe sole lateral direction.

  Further, the toe side portion 15 of the shoe sole 11 with respect to the stepped-back portion 13 is formed so as to be gradually thinner along the shoe sole vertical direction. Note that the toe side portion 15 also includes a buckle pressure receiving portion 17 capable of receiving pressure on the toe portion Fd of the foot F. This refers to the direction toward the tip of the pressure receiving portion 17.

  Further, the stepping-back portion 13 and the buckle pressure receiving portion 17 are subjected to anti-slip processing by embossing. Instead of performing the anti-slip process by embossing, the anti-slip process may be performed using the anti-slip material on the stepped-back portion 13 and the buckle pressure receiving portion 17.

  Next, the operation and effect of the first embodiment will be described.

  Since the stepped-back portion 13 of the shoe sole 11 is formed in a convex shape downward in the lateral direction of the shoe sole, the toe spring is set while increasing the rigidity of the stepped-back portion 13 of the shoe sole 11, 11 rollability can be improved.

  Further, since the portion 15 on the toe side of the shoe sole 11 with respect to the stepped portion 13 is formed so as to be gradually thinner along the shoe sole vertical direction, as shown in FIG. The load center point trajectory of the foot F in the period extends from the heel part Fb on the foot outside part Fc in the longitudinal direction of the sole, and then extends from the foot outside part Fc toward the tip of the heel part Fd. Thereby, the locus | trajectory length of the load center point locus | trajectory in the stance phase in a walk cycle can be shortened, and walk kinetic energy efficiency can be improved.

  Furthermore, since the anti-slip treatment is applied to the stepping-back portion 13 and the buckle pressure receiving portion 17 of the shoe sole 11, it is possible to suppress slipping between the stepping-back portion 13 of the shoe sole 11 and the buckle pressure receiving portion 17 and the ground. it can.

  Therefore, according to the first embodiment, the rolling property of the shoe sole 11 and the walking kinetic energy efficiency can be improved while increasing the rigidity of the stepped-back portion 13 of the shoe sole 11, so that deformable diseases such as hallux valgus, rheumatoid arthritis, etc. Even a person who has a limb can secure a smooth walking while reducing the pain associated with walking by reducing the dorsiflexion angle of the midfoot phalanx joint Fa of the foot F. In particular, since it is possible to suppress slipping between the stepped-back portion 13 of the shoe sole 11 and the buckle pressure receiving portion 17 and the ground, it is possible to enhance the transmission efficiency of the walking propulsion force and sufficiently ensure a smoother walking. .

(Second Embodiment)
A second embodiment of the present invention will be described with reference to FIGS. 4, 5, and 6. FIG.

  Here, FIG. 5A is a view of FIG. 5B viewed from the left, FIG. 5B is a plan view of the pad according to the second embodiment, and FIG. 5A is FIG. FIG. 6 is a perspective view illustrating a state in which the pad according to the second embodiment is retrofitted to a stepped-back portion of a shoe sole in a ready-made women's pump shoe.

  As shown in FIG. 6, the pad 19 according to the second embodiment can be retrofitted to the shoe sole 23 of the ready-made ladies pump 21, and the pad 19 is made of a material such as rubber or EAV, for example. is there. The specific configuration of the pad 19 is as follows.

   That is, as shown in FIGS. 5A, 5B, and 5C, the stepped-back portion 25 of the pad 19 can receive the midfoot toe joint joint Fa of the foot F, and the pad lateral direction (FIG. 5 ( a) In (c), the front and back direction toward the paper surface, and in the left-right direction in FIG. 5B, downward (leftward in FIG. 5 (a), frontward in FIG. 5 (b), toward the paper surface, FIG. c) is formed in a convex arc shape to the right). Note that the stepped-back portion 25 of the pad 19 may be formed in a convex shape other than the convex arc shape instead of being formed in a convex arc shape across the pad lateral direction.

  Further, a portion 27 on the toe side of the stepped-back portion 25 of the pad 19 is formed so as to become gradually thinner along the pad buckle direction. Note that the toe side portion 27 of the pad 19 also includes a toe pressure receiving portion 29 capable of receiving the toe portion Fd of the foot F, and the pad toe direction is from the outer end of the stepped-back portion 25. The direction toward the tip of the main body pressure receiving portion 29 is said.

  Further, the stepping-back portion 25 of the pad 19 and the buckle pressure receiving portion 29 are subjected to anti-slip processing by embossing. Instead of performing the anti-slip process by embossing, the anti-slip process may be performed using a non-slip material on the stepped-back portion 25 of the pad 19 and the buckle pressure receiving portion 29.

  Next, the operation and effect of the second embodiment will be described.

  Since the stepped-back portion 25 of the pad 19 is formed in a convex shape downward in the pad lateral direction, the toe spring is set while increasing the rigidity of the stepped-back portion of the pad 19, and the rolling property of the pad 19 is increased. In other words, the rolling property of the shoe sole 23 can be improved.

  In addition, since the portion 27 on the toe side of the pad 19 with respect to the stepped-back portion 25 is formed so as to be gradually thinner along the pad buckle direction, the load center point locus in the stance phase during the walking cycle is As shown in FIG. 3, it extends from the heel Fb on the foot outer side Fc in the longitudinal direction of the sole, and then extends from the foot outer side Fc toward the tip of the heel part Fd. Thereby, the locus | trajectory length of the load center point locus | trajectory in the stance phase in a walk cycle can be shortened, and walk kinetic energy efficiency can be improved.

  Furthermore, since the anti-slip treatment is applied to the stepping-back portion 25 and the main rod pressure receiving portion 29 of the pad 19, it is possible to suppress the slipping between the stepping-back portion 25 of the pad 19 and the main rod pressure receiving portion 29 and the ground.

  Therefore, according to the second embodiment, the rigidity of the stepping portion 25 of the pad 19 can be increased, and the rolling property of the shoe sole 23 and the walking kinetic energy efficiency can be increased. Therefore, deformation diseases such as hallux valgus and rheumatoid arthritis can be prevented. Even a person who has the foot F can secure the smooth walking while reducing the pain associated with walking by reducing the dorsiflexion angle of the midfoot phalanx joint Fa of the foot F. In particular, since it is possible to suppress slipping between the stepped-back portion 25 of the pad 19 and the buckle pressure receiving portion 29 and the ground, the transmission efficiency of the walking propulsive force can be increased, and a smoother walking can be sufficiently ensured.

  In addition, this invention is not restricted to description of the above-mentioned embodiment, In addition, it can implement in a various aspect. Further, the scope of rights encompassed by the present invention is not limited to these embodiments.

1A is a view of FIG. 1B viewed from the left, FIG. 1B is a plan view of a shoe sole according to the first embodiment, and FIG. 1A is FIG. 1B. It is the figure which looked at from the right. It is the perspective view which looked at the pump shoes for women concerning a 1st embodiment from the bottom. It is a figure which shows the grounding state of the leg | foot in the stance phase in a walk cycle. It is a figure which shows the load center point locus | trajectory of the leg | foot in the stance phase in a walk cycle. 5A is a view of FIG. 5B viewed from the left, FIG. 5B is a plan view of the pad according to the second embodiment, and FIG. 5A is FIG. 5B. It is the figure seen from the right. It is a perspective view which shows the state by which the pad which concerns on 2nd Embodiment was retrofitted to the stepped-back part of the shoe sole in ready-made women's pump shoes.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Women's pumps 11 Shoe sole 13 Stepping-back part 15 Toe side part 17 Paddle pressure receiving part 19 Pad 21 Women's pumps 23 Shoe bottom 25 Stepping-back part 27 Toe side part 29 Keyhole receiving part

Claims (6)

The back surface on the footwear side is formed flat, and the stepped-back portion (13) and the buckle pressure receiving portion (17) in the toe-side portion (15) of the surface on the grounding side are connected by embossing treatment. A shoe sole formed as a
The stepping back part (13)
The middle foot phalanx joint part (Fa) can receive pressure from the inner end of the foot of the middle foot phalanx joint part (Fa) to the outer end of the foot of the middle foot phalanx joint part (Fa). And the width of the outer end of the foot is wider than the width of the inner end of the foot on the heel side. Forming,
The said heel pressure part (17) contained in the said toe side part (15),
The first inner side of the foot of the toe side portion (15) that faces the point near the center of the toe side portion (15) and the point near the center of the toe side portion (15) substantially downward. A first front side connecting the end points;
On the toe side on a straight line passing from a point near the center of the toe side portion (15) to a point near the center of the second front side that is the front side of the band-like region that is the turning back portion (13) A first vertical side that is a side connecting a point near the center of the portion (15) and a point near the center of the second front side of the belt-like region;
A third front side that is a side between a point near the center of the second front side and a second inner end point on the inside of the foot of the toe side portion (15) of the second front side; ,
The first inner end point and the third front side on the inner side of the foot of the toe side portion (15) facing substantially downward to a point near the center of the toe side portion (15) on the straight line A second vertical side that is a part of the inner side of the foot of the toe side portion (15) connecting the second inner end point of the inner side of the foot,
A square region connected to the stepped-back portion (13), and the square region is subjected to the dotted embossing treatment;
Furthermore, the toe side portion (15) is formed so that the thickness gradually becomes thinner than the stepped-back portion toward the toe side. The second front side of the belt-like region is
The first outer end point on the outer side of the foot on the second front side is formed in a substantially straight line inclined obliquely so as to be located on the toe side of the foot with respect to the second inner end point on the inner side of the foot,
On the other hand, the rear side of the band-like region facing the second front side with a space therebetween is a second outer end point on the outer side of the foot on the rear side and a third inner end point on the inner side of the foot on the rear side. The shoe sole according to claim 1, wherein the shoe sole is formed in an arcuate curved shape that is recessed in a concave shape toward the second front side. The back surface on the footwear side is formed flat, and the stepped-back portion (13) and the buckle pressure receiving portion (17) in the toe-side portion (15) of the surface on the grounding side are connected by embossing treatment. Footwear having a shoe sole formed as a
The stepping back part (13)
The middle foot phalanx joint part (Fa) can receive pressure from the inner end of the foot of the middle foot phalanx joint part (Fa) to the outer end of the foot of the middle foot phalanx joint part (Fa). And the width of the outer end of the foot is wider than the width of the inner end of the foot on the heel side. Forming,
The said heel pressure part (17) contained in the said toe side part (15),
The first inner side of the foot of the toe side portion (15) that faces the point near the center of the toe side portion (15) and the point near the center of the toe side portion (15) substantially downward. A first front side connecting the end points;
On the toe side on a straight line passing from a point near the center of the toe side portion (15) to a point near the center of the second front side that is the front side of the band-like region that is the turning back portion (13) A first vertical side that is a side connecting a point near the center of the portion (15) and a point near the center of the second front side of the belt-like region;
The third front side and a side between the second inner second inside end point of the foot of the toe-side portion of the point and the second before-edge near the center of the before-edge (15) ,
The first inner end point and the third front side on the inner side of the foot of the toe side portion (15) facing substantially downward to a point near the center of the toe side portion (15) on the straight line A second vertical side that is a part of the inner side of the foot of the toe side portion (15) connecting the second inner end point of the inner side of the foot,
A square region which is connected to the stepping-back portion (13), the embossing process of dotted shape is decorated with the square area,
Further, the toe side portion (15) is formed such that its thickness gradually becomes thinner toward the toe side than the stepped-back portion. The second front side of the belt-like region is
The first outer end point on the outer side of the foot on the second front side is formed in a substantially straight line inclined obliquely so as to be located on the toe side of the foot with respect to the second inner end point on the inner side of the foot,
On the other hand, the rear side of the band-like region facing the second front side with a space therebetween is a second outer end point on the outer side of the foot on the rear side and a third inner end point on the inner side of the foot on the rear side. The footwear according to claim 3, which is formed in an arcuate curved shape that is recessed in a concave shape toward the second front side. A pad that can be retrofitted onto the sole of ready-made footwear,
The pad has a flat back surface on the footwear side, and embosses the stepped-back portion (13) and the buckle pressure-receiving portion (17) in the toe-side portion (15) of the front surface that is the grounding side. And connected to form,
The stepping back part (13)
The middle foot phalanx joint part (Fa) can receive pressure from the inner end of the foot of the middle foot phalanx joint part (Fa) to the outer end of the foot of the middle foot phalanx joint part (Fa). thick formed of band-like region such that, and, the width portion of the fifth metatarsal side than the width of the inner end portion of the foot of the outer end of the foot of the strip-like region wide in the heel side Forming,
The said heel pressure part (17) contained in the said toe side part (15),
The first inner side of the foot of the toe side portion (15) that faces the point near the center of the toe side portion (15) and the point near the center of the toe side portion (15) substantially downward. A first front side connecting the end points;
On the toe side on a straight line passing from a point near the center of the toe side portion (15) to a point near the center of the second front side that is the front side of the band-like region that is the turning back portion (13) A first vertical side that is a side connecting a point near the center of the portion (15) and a point near the center of the second front side of the belt-like region;
A third front side that is a side between a point near the center of the second front side and a second inner end point on the inside of the foot of the toe side portion (15) of the second front side; ,
The first inner end point and the third front side on the inner side of the foot of the toe side portion (15) facing substantially downward to a point near the center of the toe side portion (15) on the straight line A second vertical side that is a part of the inner side of the foot of the toe side portion (15) connecting the second inner end point of the inner side of the foot,
A square region connected to the stepped-back portion (13), and the square region is subjected to the dotted embossing treatment;
Furthermore, the toe side portion (15) is formed so that the thickness gradually becomes thinner than the stepped-back portion toward the toe side. The second front side of the belt-like region is
The first outer end point on the outer side of the foot on the second front side is formed in a substantially straight line inclined obliquely so as to be located on the toe side of the foot with respect to the second inner end point on the inner side of the foot,
On the other hand, the rear side of the band-like region facing the second front side with a space therebetween is a second outer end point on the outer side of the foot on the rear side and a third inner end point on the inner side of the foot on the rear side. 6. The pad according to claim 5, wherein the pad is formed in an arcuate curve shape that is recessed in a concave shape toward the second front side.

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