WO2005120267A1

WO2005120267A1 - Shoe

Info

Publication number: WO2005120267A1
Application number: PCT/JP2005/010334
Authority: WO
Inventors: Kenzou Kassai; Yasuhiro Tsuneka
Original assignee: Aprica Ikujikenkyukai Aprica Kassai Kabushikikaisha
Priority date: 2004-06-10
Filing date: 2005-06-06
Publication date: 2005-12-22
Also published as: EP1754423A1; KR20070029706A; TW200608909A; CN1964639A

Abstract

A shoe (10), wherein a stabilizer (50) with a specified hardness higher than the hardness of a sole is fitted to the sole (11) at the portion thereof corresponding to an area between the metarsal arch and the tarsal lateral arch of an infant.

Description

Specification

Shoes

Technical field

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to shoes, and more particularly to shoes that support the development of soft infant feet.

[0002] A conventional shoe with a reinforced shoe sole is disclosed in, for example, Japanese Patent Application Laid-Open No. 7-163404.

[0003] In the shoe disclosed in Japanese Patent Application Laid-Open No. 7-163404, by using a synthetic resin or rubber hard plate as a member of the sole, functions such as elasticity and bending fatigue resistance of the sole are improved. Have improved.

[0004] Conventional shoes with reinforced shoe soles have been configured as described above. Although it was considered as a sports shoe, it was not considered in terms of bone growth of infants and children.

Disclosure of the invention

[0005] An object of the present invention is to provide a shoe in consideration of the foot structure peculiar to an infant, taking into account the growth of a foot bone of the infant, which does not damage the foot of a soft infant.

[0006] The shoe according to the present invention has a stabilizer having a predetermined hardness at a portion of the sole corresponding to the lateral arch from the metatarsal arch of the infant to the tarsal portion.

[0007] Metatarsal arch force of infants [0007] Since a stabilizer having a predetermined hardness is provided at a portion corresponding to the lateral arch of the tarsal portion, the shoe bends at the metatarsal portion according to the growth of the child's foot. As a result, it is possible to provide a shoe that does not hinder natural walking, promotes walking like barefoot, and considers the growth of infants' feet.

[0008] Preferably, the stabilizer is formed of a thermoplastic rubber.

[0009] More preferably, the stabilizer is made of a material harder than the sole of the shoe.

[0010] More preferably, the stabilizer has a band shape having a predetermined width, and has a curved portion that extends from the heel to the toe and then curves toward the inside of the shoe. [0011] More preferably, the shape of the stabilizer is point-symmetric with respect to its center.

[0012] More preferably, a plurality of grooves are provided in the region of the sole located closer to the toes than the stabilizer along the curved portion.

Brief Description of Drawings

FIG. 1 is a perspective view showing a shoe for an embodiment of the present invention.

[FIG. 2A] A view of the sole of the shoe as viewed from an external force.

FIG. 2B is a cross-sectional view of a portion indicated by bb in FIG. 2A.

FIG. 3 is an anatomical view of a foot bone.

FIG. 4 is a diagram showing a locus of weight shift during walking on the sole of an adult with an arch formed.

FIG. 5A is a diagram showing an example of a specific shape of a stabilizer 50.

FIG. 5B is a diagram showing another example of a specific shape of the stabilizer 50.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of an infant shoe according to one embodiment of the present invention. Referring to FIG. 1, an infant shoe 10 has a shoe sole 11 located under the infant's foot, an upper 12 covering the upper of the infant's foot, and an upper 12 that is continuous with the infant's foot. It has a tongue piece 13 covering the upper part of the instep and a side skin part 14 covering both sides of the infant's foot, continuing to the carapace part 12.

[0015] The infant shoe 10 includes a connection band 17 extending from one end on the side skin portion 14 to the other side skin portion through a space formed in the tongue piece portion 13. The connection band 17 is fixed to one end on the side skin portion 14, and the other end is fixed to the other side skin portion 14 by a flat fastener 18. Therefore, by opening the hook-and-loop fastener 18 on the other side skin portion, the infant's foot can be easily inserted into the inside of the shoe 10.

As shown in FIG. 1, the upper 12 and the side skin 14 of the infant shoe 10 are both made of nylon mesh cloth.

FIG. 2A is a diagram showing the sole 11 of the infant shoe 10 shown in FIG. 1, and FIG. 2B is a cross-sectional view taken along the line bb of FIG. 2A. Referring to FIGS. 2A and 2B, the position of the toe of the infant on the sole 11, the position of the arch, the lower part of the arch and the arch are shown. Is provided with a ventilation portion made of a mesh at a position opposite to. Here, of the toes, relatively large wire meshes are provided at positions 21a to 21c where the fingers other than the thumb are placed and at the arches 24a to 24c, and the toe position 22 and the tip of the shoe are provided. Section 23, a lower portion 25 of the arch and a position 26 opposite the arch are provided with a plurality of small wire meshes 21-26. Further, a through hole 27 is provided slightly below the position where the toe is placed. The size of the mesh is selected so that pebbles and small foreign matter do not enter.

Referring to FIG. 2A, wire meshes 21 to 26 are provided in concave portions surrounded by convex portions on shoe sole 11 so as not to directly contact the outside (in FIG. 2A, The line surrounding the mesh represents the recess.

[0019] The mesh is not limited to a wire mesh, but may be made of a reinforced plastic as long as it has a predetermined strength.

[0020] A stabilizer 50 is provided at a position adjacent to the position of the arch in the center of the bottom 11 of the shoe. The sole 11 is made of TPR (thermoplastic rubber) with a hardness of 45! On the other hand, the stabilizer 50 is made of TPR, which is the same as the member forming the sole 11, but its hardness is higher than the sole 11, and the hardness is 60.

[0021] Here, the dimension of the stabilizer 50 is about 49.5 mm when the shoe size is 16 cm. In this case, the force of the stabilizer 50 at the heel end of the shoe is also the dimension up to the heel end of the shoe. Is about 47 mm and its width is about 11.5 mm. The protrusion of the stabilizer 50 from the shoe sole is about 6 mm.

[0022] Further, the main components of the TPR that constitutes this stabilizer 50 are, for example, SBS (styrene) 80%, PS (polystyrene) 8%, calcium carbonate 5%, paraffin oil % Power, stearic acid 2% available power is not limited to this.

Next, the position where the stabilizer 50 is provided will be described. Figure 3 is an anatomical view of the foot bone. The foot bone is roughly divided into three regions: a region B of the phalanges (tarsal bone), a region C of the metatarsal bone, and a region D of the tarsal bone. The anterior metatarsal arch 30 is a so-called instep arch, which changes by applying a load that is different from that of a true arch. In the case of an adult, the metatarsal arch 30 is crushed by its own weight when walking. Foot arch 31 In the case of an adult, the arch does not change due to its own weight.

[0024] Since the feet of infants are fat and fat, the shape of the feet changes depending on whether the feet are on the ground and are under their own weight or when the feet are lifted. Under its own weight, the width of the feet increases and the height of the instep decreases. On the other hand, when the foot is lifted, the width of the foot becomes smaller and the height of the instep becomes higher.

When the baby is standing, he or she bends the fingertip and grasps the ground. Encouraging this movement leads to the formation of the arch. In order to smoothly perform this finger movement, it is necessary to hold the metatarsal arch 30 firmly. Since the metatarsal arch 30 is a place where the movement of the finger is not restricted, even if it is firmly fixed, the movement of the finger is not hindered.

Therefore, in this embodiment, a stabilizer 50 is provided between the metatarsal arch 30 and the lateral arch 31 of the tarsal portion in order to firmly fix the metatarsal arch 30.

As described above, by providing the stabilizer 50 between the metatarsal arch 30 of the shoe sole and the lateral arch 31 of the tarsal portion, the heel can be held and the twist during walking can be prevented.

[0028] The position of the stabilizer 50 is based on a design calculated based on baby medicine and childcare technology. Therefore, by providing the stabilizer 50 at this position, the shoes bend at the metatarsal portion in accordance with the growth of the child's foot, so that natural walking is not hindered, and walking like barefoot is promoted, and It is possible to provide shoes in consideration of growth.

[0029] In Figs. 2A and 2B, the stabilizer 50 is provided only at the center of the shoe sole 11, but the invention is not limited to this, and the width may be further increased.

Next, a specific shape of the stabilizer will be described. Figure 4 shows the sole of an adult with an arch formed. In the figure, the arrows indicate the locus of weight shift during walking. Focusing on the shift of the center of gravity of an adult walking, the ground first touches the heel, the center of gravity moves to the outside of the foot, and the head shifts from the fifth metatarsal head to the first metatarsal head, and the toe (1st finger) comes out from the tip.

[0031] Therefore, the shape of the stabilizer 50 is preferably in accordance with the weight shift during walking so that the center of gravity shifts. By doing so, the center of gravity shifts in the width direction of the foot, and a sense of stability is obtained, and walking is improved and an ideal arch is formed on the infant's foot.

FIGS. 5A and 5B are diagrams showing a specific shape of the stabilizer 50. FIG. Figure 5A shows FIG. 2A shows the stabilizer 50a shown in FIG. 2A, and FIG. 5B shows a modification thereof. Referring to FIG. 5A, the shape of stabilizer 50a is a band shape having a predetermined width, and has a curved portion that extends from the heel to the toe direction and then curves inside the shoe, as indicated by the arrow in the drawing. Further, as shown in FIG. 5A, the shape of the stabilizer 50a is point-symmetric with respect to the center.

Referring to FIG. 5B, the shape of stabilizer 50b for the modification is similar to that of stabilizer 50a on the toe side, but has a shape close to a rectangle on the heel side. By forming the stabilizer into the shape shown in FIGS. 5A and 5B, the formation of the arch is promoted as described above.

Further, referring to FIG. 2A, a plurality of grooves are provided in the region of the shoe sole located on the toe side relative to stabilizer 50 along the curved portion described above.

In the above embodiment, the same applies to the force for the right foot which has been described only for the left foot of the infant's shoes.

Although one embodiment of the present invention has been described with reference to the drawings, the present invention is not limited to the illustrated embodiment. Various changes can be made to the illustrated embodiment within the same or equivalent scope as the present invention. Industrial applicability

[0037] The shoe according to the present invention is provided with a stabilizer having a predetermined hardness at a portion of the sole where the infant's metatarsal is placed, so that the foot of the infant without damaging the foot of the soft infant is provided. It is advantageously used as a shoe in consideration of bone growth.

Claims

The scope of the claims

[1] Shoes with a predetermined hardness stabilizer on the sole of the sole corresponding to the lateral arch at the foot of the infant's metatarsal bone.

[2] The shoe according to claim 1, wherein the stabilizer is formed of a thermoplastic rubber.

3. The shoe according to claim 1, wherein the stabilizer is made of a material harder than the shoe sole.

4. The shoe according to claim 1, wherein the stabilizer has a band shape having a predetermined width, extends from the heel to the toe, and then has a curved portion curved toward the inside of the shoe.

5. The shoe according to claim 4, wherein the shape of the stabilizer is point-symmetric with respect to the center.

6. The shoe according to claim 1, wherein a plurality of grooves are provided along the curved portion in a region of the shoe sole located closer to the toes than the stabilizer.