JP2007130268A - Mid-sole body for woman's shoes - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mid-sole body 10 for woman's high-heeled bottom shoes which enables a stable and smooth walking to be performed in such a manner that the gravity center at the time of wearing is made to move in the direction from the heel to the grounding surface, and in addition, suppresses the forward sliding in the direction to the tiptoe, and has a function for reducing fatigue. <P>SOLUTION: In the mid-body 10 for woman's shoes equipped with a heel 5 having a height of 3 cm or higher, the surface with which the heel rib section of the footpad is formed into a bowl-like recess section 1 corresponding to the heel topology. Also, an arch section 2 is formed on the right and the left in the tiptoe direction of the bowl-like recess section 1. At the time of wearing, the gravity center moves from the heel in the direction to the grounding surface, and also, the mid-sole body 10 is fabricated in a manner to prevent the forward sliding from occurring by the raise of the arch section 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a midsole for women's shoes having a high heel.
The center of gravity at the time of wearing is directed from the heel toward the ground surface, enabling stable and smooth walking, and further suppressing the forward slip in the toe direction and reducing fatigue on the toes, knees, waist, etc. This relates to the insole body of the ladies' heel sole shoes.

A conventional women's shoe having a high heel causes a forward slip in the toe direction due to the inclined shape for making the foot look beautiful.
However, for example, in a heel sandal, there is a tendency to attach importance to style, so that an upper that protects a toe is hardly worn, and the upper supports a foot with a strap and a narrow strap.
In this structure, since the emphasis is placed on the style, the conditions for supporting the foot are insufficient, so there is a situation where the comfort and stability are not sufficiently considered.

In women's shoes with a high heel, the weight is applied mainly from the thumb ball part from the standing upright position at rest, and the structure is often so-called toe walking.
Fatigue on the hallux valgus or ankle, knee, waist, etc. is known as a disease caused by the slanted shape, and there is a risk of ankle sprain, shoe rubbing and even falling because of poor stability during walking.

The center of gravity movement of the soles during walking is, first of all, when the stepped foot touches the ground, first the heel touches the ground, and the weight shift starts from the heel along the outer edge of the sole (the little finger side). Move up.

Secondly, the body weight gradually moves from the base of the little finger to the base of the thumb, and a movement that grabs the ground with the entire foot is added.

Third, the weight comes to the base of the thumb and kicks the ground with your finger.

Such a series of weight shifts can be repeated to enable correct walking. However, it is difficult for women's shoes with a high heel to repeat such a movement continuously, and it is not easy for everyone to do it. It is said that it is a stable way of walking, causing a burden on the legs, knees and lower back and causing various obstacles.
Even in an upright state at rest, the center of gravity tilts forward, resulting in an unstable posture, causing similar problems.

In the conventional prevention of slipping in the toe direction, a pad-shaped soft anti-slip tool is often mounted on the insole or insole surface.
However, this shape loses its smart appearance and is considered to have a problem of falling off during use.

In addition, there is a shape configuration in which an outer edge is provided in the collar portion of the midsole 10 and the collar is held throughout the entire periphery.
Even with this configuration, the natural appearance, holdability to the heel of the periphery, or the effect of preventing slipping in the toe direction, and if it is a heel-bottom shoe of 3 cm or less, some stability at rest and walking Can be recognized.
However, in high-heeled shoes with a height of 3 cm or more, weight shift is large, stability at rest and walking cannot be recognized, and a big problem remains regarding slipping.

Also, even in shoes with a structure where the vertical arch of the thick part is installed along the contour of the arch and the foot part is fitted and the movement of the back and forth is suppressed by this convex part, it was not possible to prevent front slip with high heel .
Moreover, although it is a very rare case, on the contrary, by further accelerating the force in the outer direction of the foot moving from the heel to the base of the little finger along the outer edge of the sole (the little finger side) by moving the weight during walking, It is considered that there is no possibility of causing problems such as foot sprains or falls.

  Furthermore, by accelerating the outward force, the weight during walking gradually moves from the base of the little finger to the base of the thumb, and the movement that grabs the ground with the entire foot is alienated. It is possible.

Regardless of whether stationary or walking, if the center of gravity is not in the center direction of the kite, the ground movement of the kite, which is the first movement, is unstable and the center of gravity is not moved properly.
Furthermore, there have been few reports on the development of this field until now.

Incidentally, there are the following precedents for pursuing the fit by providing an arch structure in a shoe insole or the like.
Utility model registration No. 3076674 (utility application 2000-7019) Actual Kosho 34-15624 JP 2004-229992 A However, these documents 1 to 4 have no suggestion about the combination of the ridge-shaped concave portion in which the heel portion fits and the pair of left and right arch portions and the cooperation effect thereof.

The subject of the present invention is that the center of gravity when wearing women's shoes with a high heel is directed from the heel toward the ground surface, enabling stable and smooth walking, and further forward sliding in the toe direction. Insole body for women's heel sole shoes that suppresses fatigue on toes, knees, hips, etc., and moves the center of gravity ideal for walking regardless of the height of the heel Is to provide.
In particular, it is the development of the midsole of women's shoes with a heel with a height of 3 cm or more.

In order to solve the above-mentioned problems, the present invention adopts the following means.
As claimed in claim 1, in the insole from the back end to the toe of the toe, the insole is designed so that the center of gravity from the resting state to the walking state is directed from the toe toward the ground surface, A ridge-shaped recess is formed in the ridge portion in a curved shape so as to increase from the center toward the outside.
The bowl-shaped recess of the mid-sole is formed along an independent bowl-shaped recess or bowl shape.
The saddle-shaped recess is a shape that is U-shaped or O-shaped in a plan view and the inside is recessed.

The saddle-shaped recess is formed integrally with the midsole.

As claimed in claim 3 and claim 4, which frequently occurs in women's shoes having thick arches on the right and left sides of the toe-direction surface of the heel-shaped recess in the insole, and having a high heel The structure is such that rapid weight shift from the heel to the toe is suppressed, and further, slippage in the toe direction is also suppressed.
The saddle-shaped recess of the midsole body is formed along an independent saddle-shaped recess or saddle shape, and an arch portion is provided as a pair on the left and right of the toe direction of the saddle-shaped recess of the midsole.
The arch is formed at the left and right edges of the heel-shaped recess formed along the heel shape of the mid-bottom body, and is formed and installed on the left and right sides of the toe direction and at a position slightly separated from the independent heel-shaped recess to the left and right in the toe direction. There are forms to form and install.
The arch part is on the left and right front surfaces in the toe direction from the heel, and is a position that does not reach the arch part or a position that is slightly related to the arch part, and preferably a position in front of the inclined part.

The fifth aspect of the present invention is that the heel held by the heel-shaped recess of the present case is tilted while being held, that is, the heel-shaped recess is formed to be inclined in the toe direction. Show.

In claim 6, claim 7, and claim 8, the material of the insole 10 is a thermoplastic synthetic resin that can be injection-molded, and the synthetic resin maintains a curved surface shape even when the weight is applied. The inner bottom body 10 has two or more layers due to different hardness in injection molding, the upper layer is formed of a soft resin, and the lower layer is formed of a hard high-strength resin. It states that there is.
The midsole is preferably made of high-strength resin without using a shank, but can be buried if necessary.

In the insole, the material is a high-strength FRP (fiber reinforced plastic) resin, ABS (acrylonitrile butadiene styrene) resin, nylon resin, polyurethane resin, polycarbonate resin, etc. that can be injection molded, and has a weight of Maintains curved surface shape even when applied.

The mid-sole has two or more layers due to different hardness in injection molding, and the upper layer is preferably a soft resin that has good foot contact and excellent shock absorption, and the hardness is 50 to 50 according to JIS-A method. 70 °, the lower layer is made of a hard high-strength resin, and the hardness is more preferably 80 ° or more according to the JIS-A method.

The ninth aspect further includes the use of an artificial / synthetic leather having a non-slip processed as an insole surface material for the insole, further suppressing forward slip in the toe direction, toe, knee, waist, etc. In addition to reducing fatigue, it has been described that has a function that enables stable and smooth walking.

The insole body for women's shoes having a high heel according to the present invention has the following effects.
(1) According to the present invention relating to the overall structure of claims 1 to 9, a rib-shaped recess is formed on the rib portion of the insole so that the center of gravity when worn is directed from the heel toward the ground surface, By providing arches on the left and right in the toe direction of the saddle-shaped concave portion, it is possible to prevent a forward slip by suppressing rapid movement of the center of gravity, and to enable stable and smooth walking.
(2) It is also possible to provide a women's heel sole shoe having a function of suppressing front slip in the toe direction and reducing fatigue on the toes, knees, waist and the like.
(3) In the shape of the heel-shaped recess according to claims 1 to 4, the heel is stably maintained in an inclined posture, and the arch portion is formed on the left and right in the inclined direction, so that the entire foot slips forward Is prevented.
Incidentally, as an example of the position of the arch part, it is a position that is on the front left and right in the toe direction from the heel and does not reach the arch, and is a position in front of the inclined part.
The positions of the other arch portions are positions in the inclined portion on the left and right of the position relating to the arch.
With this configuration, it is possible to prevent the movement of the center of gravity from the heel due to the front slip and to maintain a natural walking cycle.
(4) In the configurations of claims 6 to 8, the material of the insole is a thermoplastic synthetic resin that can be injection-molded, and the synthetic resin maintains a curved shape even under a weight, It can be buried.
Durability and shape retention are sufficient, and there is an effect that deformation does not affect walking during use.
(5) The inner bottom body having a two-layer structure in which the upper layer portion is formed of a soft resin and the lower layer portion is formed of a hard high-strength resin has good comfort.
(6) Secondary processing such as attaching an insole surface material that has been subjected to anti-slip processing to the surface of the insole can be expected to have a more effective secondary effect.
(7) The integral molding can save labor in processing and is economical.
(8) It has an excellent effect in preventing the front slip phenomenon of the midsole of high heels having a height of 3 cm or more.

Actual body pressure dispersion measurement test Body pressure dispersion with heel heights of 5cm, 6cm, and 7cm with women's shoes with the mid-sole of the above configuration (Claims 1-4) and women's shoes without this A measurement test was conducted.

It was confirmed that the women's shoes provided with the insole body had a center of gravity under the heel in an upright state when worn, regardless of the height of the heel, and suppressed forward slip in the toe direction.
In addition, from the monitoring results during walking, the center of gravity movement is significantly less than women's shoes that do not have a midsole in the above configuration (Claims 1 to 4), and stable and smooth walking can be realized. It was.

In the present invention, the high heel shoe having a height of about 3 cm or more has a large movement of weight, and cannot be recognized as being stationary and walking, and there is a big problem with the front slip. It provides a means.
In addition, even if it is not strictly 3 cm or more, it can be sufficiently applied to a heel sole shoe having a structure or property in which a forward slip occurs and a walking cycle cannot be smoothly performed.

In the basic embodiment of the present invention, a thermoplastic high-strength resin is used in order to solve the problem of appearance, and the mid-bottom body 10 has a three-dimensional shape having a collar portion, an inclined portion 11 and a flat portion 12, A rib-shaped concave portion 1 is formed on the ground contact portion of the rib, and an arch portion 2 is formed on the left and right sides of the rib-shaped concave portion 1 in the toe direction.

By using an anti-slip surface material as the insole, it is possible to further suppress forward slip in the toe direction.
Although not shown in the embodiment, the insole surface material that has been subjected to anti-slip processing on the surface of the insole body 10 has a corresponding anti-slip effect.

The makeup part of the heel can smooth the landing from the heel during walking by providing an inclination angle or a round to the landing edge part during walking.
The inclination angle of the edge is arbitrarily determined in consideration of the incident angle from the heel during walking due to the height of the heel.

The toe shape of the midsole 10 can be arbitrarily deformed to be wide or narrow.
In addition to the present invention, the embodiment does not mention the comfort and walking smoothness based on the shape of the bottom of the heel and the inclination angle in addition to the present invention. The improvement of the property can be expected as a synergistic effect.

First, Example 1 which is an insole body for women's shoes having a heel with a height shown in FIGS. 1 to 8 will be described.
FIG. 1 is a perspective view showing the entirety of a midsole body 10 for a left foot in women's shoes having a heel with a height of 3 cm or more, and FIG. 2 is a cross-sectional view of the heel part of the midsole body 10. 7 is a cross-sectional view taken along line AA of FIG. 7, and FIG. 3 is a vertical cross-sectional view of the heel portion of the midsole 10 and is a cross-sectional view taken along line BB of FIG.
4 is a cross-sectional view of the inclined portion 11 of the mid-bottom body 10 and is a cross-sectional view taken along the line CC of FIG.
FIG. 5 is a longitudinal center sectional view of the entire midsole 10 of the first embodiment. A two-layer structure when cut from the toes in the heel direction is shown, and is composed of an upper layer portion 3 and a lower layer portion 4.
Such a form can be easily obtained by injection molding. Although a plurality of layers can be stacked, a two-layer body is used in this embodiment.
The area corresponding to the arch from the arch portion to the heel portion is made of two or more layers, the upper layer portion 3 is made of soft resin, and the lower layer portion 4 is made of high hardness resin. As the material, for example, advanced FRP (fiber reinforced plastic) resin, ABS (acrylonitrile butadiene styrene) resin, nylon resin, polyurethane resin, polycarbonate resin and the like are preferable. In particular, the upper layer 3 is preferably made of a soft resin to protect the foot and improve the shock absorption. As a result, it is possible to prevent shoe rubbing, octopus, fish eyes and keratin that are afflicted when wearing new shoes or walking long distances.

FIG. 6 is an explanatory diagram showing that the weight applied to the saddle-shaped recess 1 provided on the mid-sole 10 is downward in the grounding direction.
FIG. 7 is also a partial plan view of the midsole 10 of the first embodiment, and is an explanatory diagram showing the positions of the bowl-shaped recess and the arch part.
FIG. 8 is a partial plan view of the mid-sole body 10 of the first embodiment, and is an explanatory view showing the positions of the bowl-shaped recess and the arch part. Indicates that they are formed continuously.

In the midsole body 10, the upper layer part 3 and the lower layer part 4 are laminated and integrated, but the saddle-shaped recess 1 is formed in the collar part of the midsole body 10.
The heel-shaped recess 1 provided in the heel portion of the midsole 10 is designed so that the center of gravity is directed from the heel toward the ground surface when worn, and is formed into a curved shape so as to increase from the center toward the outside. The saddle-shaped recess 1 is integrally formed with the midsole 10.
The bowl-shaped concave portion 1 of the mid-bottom body 10 is formed along the bowl shape. That is, it is a concave shape in which edges are formed on the left and right sides and the rear part when the heel is placed.
It becomes a shape recessed in a horizontal U-shaped form.

Arches 2 are formed on the left and right edges of the saddle-shaped recess 1 of the midsole 10 continuously to the left and right in the toe direction.
The scissors are not completely U-shaped in the same depth, and the front side of the scissors is very fine but has an arch gap where the arch 2 of the midsole 10 fits.
Strictly speaking, by providing the arch portion 2 following the heel-shaped concave portion 1, a shape corresponding to the shape of the sole can be obtained.
Therefore, the fitted arch portion 2 suppresses forward slip in the toe direction, and reduces fatigue on the toes, fingers, knees, and waist.

Thus, by providing the heel-shaped concave portion 1 in contact with the rib portion and the arch portion 2 in contact with the arch gap in the front portion of the heel, rapid movement of the center of gravity can be suppressed and stable walking can be performed.
Further, since the upper layer portion uses a soft resin, it is possible to softly absorb the impact that tends to concentrate on the heel and reduce the burden on the foot.

The size of the bowl-shaped recess 1 is preferably an arc having a depth of about 3 mm to 4.5 mm, and the height of the bulge of the arch portion 2 is preferably about 2 mm to 3.5 mm.
Moreover, the dimension of the upper layer part of the two-layer structure in the region corresponding to the heel part from the arch part is preferably about 5 mm in thickness, and the dimension of the lower layer part is preferably about 5 mm to 7 mm.
By setting it as said dimension, a heel fits firmly in the heel-shaped recessed part 1, is supported by the protrusion of the arch part 2, and does not collapse a leg | skeleton. In other words, it can be said to be effective in preventing and mitigating hallux valgus.

FIG. 9 is a plan view of a part of the insole body 10 according to the present invention, showing the positions of the bowl-shaped recess 1 and the arch part 2, and the arch part at a position slightly away from the independent bowl-shaped recess. Example 2 shows Example 2 formed on the left and right.
This is particularly effective in women's shoes having a heel with a height of 3 cm or more.

The ridge-shaped recess 1 provided in the heel portion of the midsole 10 so that the center of gravity is directed from the heel toward the ground plane is shaped into a curved surface so as to increase from the center toward the outside.

The saddle-shaped concave portion 1 of the mid-bottom body 10 of the second embodiment is an independent saddle-shaped concave portion, and the arch portions 2 are formed and installed on the left and right sides of the toe direction slightly apart from the saddle-shaped concave portion 1.
Since the arch portion 2 is slightly separated from the saddle-shaped recess portion 1, the arch portion 2 may be related to a position where the arch portion contacts.
Even in this case, in the present invention, it is indispensable to form the arch portions 2 on the left and right as a pair in order to prevent the front slip.

In addition, it is possible to propose a configuration in which the arch portion 2 is formed to the left and right continuously with the bowl-shaped concave portion 1, and the arch portion that is a little further away is formed to the left and right.
By arranging the arch part 2 in the front and rear double, it is possible to suppress the front slip double.

As described above, by installing the arch portions 2 on the right and left of the toe direction of the heel-shaped recess 1 of the midsole body 10, the arch gap in the front portion of the heel is supported by the bulges of the left and right arch portions 2, and a forward slip occurs. In addition, even at a position slightly away from the position of the arch portion 2, the arch portion and the ridges of the left and right arch portions 2 are in contact with the opposite side and supported by the arch ridges to prevent forward slip.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an entire embodiment 1 of an insole body 10 for women's shoes according to the present invention. FIG. 8 is a cross-sectional view of the heel portion of the midsole body 10 in the same manner, and is a cross-sectional view taken along line AA of FIG. Cross section shown Similarly, it is the figure which carried out the longitudinal cross-section of the collar part of the midsole body 10, Comprising: It is the BB sectional drawing of FIG. 8 is a cross-sectional view taken along the line CC of FIG. It is a longitudinal center line sectional view of the whole middle sole 10 for women's shoes concerning the present invention. It is explanatory drawing which shows that the load to the collar to the mid-sole body 10 has faced downward in the earthing | grounding direction. It is a partial top view of the midsole body 10 concerning this invention, and is explanatory drawing which shows the position of a bowl-shaped recessed part and an arch part. FIG. 4 is a plan view of a part of the midsole body 10 according to the present invention, and is an explanatory view showing the positions of the ridge-shaped recess and the arch part, and the arch part is formed on the left and right edges of the ridge-shaped recess. It is a partial top view which shows the done Example. FIG. 4 is a plan view of a part of the midsole body 10 according to the present invention, and is an explanatory view showing the positions of the saddle-shaped recess and the arch part, and the arch part is formed on the left and right at a position slightly apart from the independent saddle-shaped recess. It is a partial top view which shows the done Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Middle bottom body 1 Gutter-shaped recessed part 11 Inclined part 12 Flat part 2 Arch part 3 Upper layer part 4 Lower layer part 5 Heel

Claims (9)

In the midsole of women's shoes with a high heel, the heel-shaped recess 1 provided in the heel part of the midsole 10 so that the center of gravity is directed from the heel toward the contact surface is so as to increase from the center toward the outside. An insole body for women's shoes, characterized in that it is formed into a curved surface, and the heel-shaped recess 1 is integrally formed with the insole body 10. The midsole for women's shoes according to claim 1, wherein the heel-shaped recess 1 of the midsole 10 is formed along an independent heel-shaped recess or heel shape. The insole for women's shoes according to any one of claims 1 to 2, wherein arch portions 2 are provided on the left and right of the toe direction of the heel-shaped recess 1 of the insole 10. The inside for ladies' shoes in any one of Claims 1-2 which provided the arch part 2 to the toe direction right and left succeeding the right-and-left edge of the collar-shaped recessed part 1 of the said midsole body 10. Bottom body. As the overall structure of the insole body 10, the curved shape of the heel-shaped recess 1 is such that the center of gravity when the heel held by the heel-shaped recess 1 follows the height of the heel 5 is directed from the heel toward the ground surface. 5. The insole for women's shoes according to claim 1, wherein the insole is inclined from the heel to the toe direction. The material for the insole 10 is a thermoplastic synthetic resin that can be injection-molded, and the insole for women's shoes according to any one of claims 1 to 5. The synthetic resin forming the insole body 10 maintains a curved surface shape even when a weight is applied, and can embed a shank, according to any one of claims 1 to 6. Insole for women's shoes. 2. The mid-bottom body 10 has two or more layers due to different hardness in injection molding, the upper layer portion is formed of a soft resin, and the lower layer portion is formed of a hard high-strength resin. The insole body for women's shoes according to any one of claims 7 to 8. The insole for ladies' shoes according to any one of claims 1 to 8, wherein said insole body 10 is provided with an insole surface material subjected to anti-slip processing.