JPH1118803A - Size variable shoes - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide size variable shoes without lowering the function of shoes so much. SOLUTION: A shoe sole 10 is divided into a front sole part 11 and a rear sole part 12, an arch member 4 for constituting a shank is disposed to a division part 13 between the front sole part 11 and the rear sole part 12 and the arch member 4 is fixed only to one of the front sole part 11 and rear sole part 12 of the shoe sole 10. Then, an upper 3 fixed to the front sole part 11 and rear sole part 12 of the shoe sole 10 is made freely extendible and contractible in back and forth directions at a middle foot part and further, a size holding member 2 for freely changeably fixing the position relation in the back and forth directions of the front sole part 11 and rear sole part 12 of the shoe sole 10 is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a variable-size shoe.

[0002]

2. Description of the Related Art Conventionally, the size of a shoe is variable as a shoe capable of coping with a change in foot size due to growth, a difference in size between left and right feet, or a difference in foot size due to individual differences. Shoes have been proposed (eg, Japanese Utility Model 5).
-4902 and 18306).

[0003]

However, the conventional size-variable shoes have not been realized yet due to the problem that the fit to the feet and the wearing comfort are deteriorated as the shoes are divided back and forth. .

Accordingly, it is an object of the present invention to provide a variable-size shoe that does not significantly reduce its function as a shoe.

[0005]

According to a first aspect of the present invention, a shoe sole is divided into a front sole and a rear sole, and a shank is formed at a division between the front sole and the rear sole. An arch member is installed, and the arch member is fixed to only one of the front bottom portion and the rear bottom portion of the shoe sole, and the upper fixed to the front bottom portion and the rear bottom portion of the shoe sole can be extended and contracted in the front-rear direction at the middle foot portion. And a size holding member for fixing the front and rear soles of the shoe sole so that the positional relationship in the front-rear direction can be changed.

According to the first aspect of the present invention, the length of the sole can be adjusted by dividing the sole into the front and rear at the middle foot, and the upper can be extended and contracted in the front and rear direction at the middle foot. You can also adjust the length. Therefore, the size of the shoe can be adjusted.

On the other hand, a second invention divides a shoe sole into a front sole portion and a rear sole portion, and erected an arch member constituting a shank at a division portion between the front sole portion and the rear sole portion, and attached the arch member to the shoe sole. Is fixed to only one of the front bottom portion and the rear bottom portion of the arch member and the first shoe sole to which the arch member is fixed is attached to the arch member.
Along with fixing the upper, the first upper is made expandable and contractible in the front-rear direction above the other shoe sole, and the elastic part of the first upper is wrapped with the second upper fixed to the other shoe sole. A size holding member is provided to fix the front bottom portion and the rear bottom portion so that the positional relationship in the front-rear direction can be changed.

According to the second aspect of the present invention, the length of the sole can be adjusted because the sole is divided into front and rear portions at the middle foot portion. On the other hand, the first upper can be extended and contracted in the front-rear direction. You can also adjust. Therefore, the size of the shoe can be adjusted.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 show an embodiment according to the first invention. 1 and 2 show a first embodiment. As shown in FIG. 1A and FIG.
0 is divided at the midfoot, and is divided into a front bottom 11 and a rear bottom 12. The front bottom portion 11 and the rear bottom portion 12 are both formed by fixing a mid sole (impact buffer layer) on an outer sole (ground bottom).

The front bottom portion 11 and the rear bottom portion 12 are connected to each other by a size holding member 2. This size holding member 2 fixes the front bottom portion 11 and the rear bottom portion 12 so that the positional relationship in the front-rear direction can be changed.
A male band 20 having a large number of locking projections 20a as shown in (c), and a female lock 21 that allows the locking projections 20a to enter and prevents the locking projections from coming out can be configured. The female lock 21 pushes the unlocking piece 21a shown in FIG. 1B to thereby lock the projection 21b shown in FIG.
Is retracted, and the male band 20 can be loosened. Note that the size holding member 2 of the present embodiment constitutes a separation preventing portion (6) for preventing the rear sole portion 12 from separating from the sole when the shoe sole 10 is stepped on the foot.

The front sole 11 and the rear sole 1 of the shoe sole 10
Above 2, an upper 3 is fixed. The upper 3 has a flexible cloth portion 30 which can be extended and contracted in the front-rear direction on a middle foot portion. The flexible cloth portion 30 is provided on the side of the upper 3 in FIG. 2C and on the bottom of the middle foot in FIG. 2D.
Note that an inner sole (insole) may be separately provided inside the upper 3.

As shown in FIG. 2B, the front bottom 11
An arch member 4 constituting a shank is installed in a divided portion 13 which divides the rear bottom portion 12 and the rear portion 12. The arch member 4 is fixed to the front bottom part 11 of the shoe sole 10 and the front foot part 31 of the upper 3 in FIG. 10 rear bottom 12
And a rear foot portion 32 of the upper 3.

Next, a brief description will be given of a method of assembling the shoe with variable size. First, as shown in FIG. 2 (a), a front bottom 11 in which the female lock 21 is integrated and a rear bottom 12 in which the male band 20 is integrated are formed. Then, as shown in FIG. 2B, the front bottom portion 11 and the rear bottom portion 12 are connected to each other by the size holding member 2, and the arch member 4 is bonded only to the front bottom portion 11. Thereafter, the forefoot portion 31 of the upper 3 in FIG.
At a, the rear foot 32 of the upper 3 is fixed to the rear bottom 12 in a fixing region 32a indicated by a two-dot chain line, while being adhered to the front bottom 11 and the arch member 4.

Next, a method of adjusting the size will be described. This variable-size shoe has a rear bottom 12 shown in FIG.
Is pushed forward, the male band 20 of the size holding member 2 enters the female lock 21 and the size is reduced. On the other hand, when the rear bottom portion 12 is pulled backward while pushing the lock releasing piece 21a of the size holding member 2 left and right, the male band 20 of the size holding member 2 comes out of the female lock 21 and the size increases.

Here, the variable-size shoe is a sole 1
Because both 0 and upper 3 expand and contract in the front-back direction,
Even after changing the length according to the size of the foot, the fit is good and the comfort is good. Moreover, the sole 1 shown in FIG.
Since the arch member 4 constituting the shank is erected in the divided portion of 0 (divided portion 13), the strength against torsion is large.

Further, in this embodiment, when the split portion 13 is bent at the time of stepping on the foot and the vicinity of the split portion 13 of the rear sole portion 12 is separated from the sole, the size holding member 2 moves the rear sole portion 12 forward. Pulling toward the bottom 11 enhances the fit.

FIG. 3 shows a second embodiment of the first invention. In the second embodiment, the size holding member 2 is configured as shown in FIG.
3B, 3C, a plurality of engaging grooves 22 formed integrally with the arch member 4, and a rotating member 23 rotatably attached to the rear bottom portion 12 of FIGS. 3A, 3B. It is composed of The size of the variable-size shoe can be adjusted by engaging the tip of the rotating member 23 with one of the engaging grooves 22.

In the second embodiment, FIG.
(A) and (d), the rear part of the upper 3
3 and an outer portion 34, which is doubled, and a fastener 5 for tightening the outer portion 34 of the upper 3 to fit the foot is provided. The fastener 5 has the same structure as the size holding member 2 in FIG.

As shown in the third embodiment of FIGS. 4 (a) and 4 (b), the rotation member 23 is lifted toward the upper 3 by the band 60 and the shoelace 61 to form the separation preventing portion 6. Is preferred.

FIG. 5 shows a fourth embodiment. In the fourth embodiment, the size holding member 2 and the separation preventing portion 6 are constituted by a pair of hook-and-loop fasteners 24 and 25. That is, for example, a male fastener 24 is fixed to the lower surface of the arch member 4, while the upper surface of the rear bottom portion 12 is
A female fastener 25 joined to the male fastener 24 is fixed.

In the above embodiment, the arch member 4 is fixed only to the front bottom portion 11, but in the first invention, the arch member 4 may be fixed only to the rear bottom portion 12.

FIGS. 6 to 8 show an embodiment according to the second invention. 6 and 7 show the first embodiment. FIG.
As shown in FIG. 7B and FIG. 7A, the shoe sole 10 is divided at the middle foot part, and the front sole part 11 and the rear sole part 12 are separated.
And divided into The front bottom 11 and the rear bottom 12 are both formed by fixing a midsole on an outer sole.

An arch member 4 shown in FIG. 6 (b) is erected at a division 13 where the front bottom 11 and the rear bottom 12 are divided. The arch member 4 constitutes a shank, and also constitutes an insole (middle sole) fixed to the front sole 11 and extending from the front end to the rear end of the shoe.

A first upper 3A is fixed to the arch member 4. The first upper 3A is fixed to the front bottom part 11, and the upper part 35 corresponding to the instep and the rear foot part (stretchable part) 32 are made of a stretchable material. ), The length of the hindfoot 32 changes.

On the other hand, a second upper 3B is fixed to the rear bottom portion 12. The second upper 3B is fastened by shoelaces (not shown), and wraps the rear foot 32 of the first upper 3A as shown in FIG.

In FIG. 7, a back counter 12a of the rear bottom 12 is integrally formed with a tongue piece 12b which projects toward the front bottom 11 and is inserted into the front bottom 11 as shown in FIG. 7 (c). Is formed. Behind the tongue piece 12b of the back counter 12a, a separation preventing portion 6 made of an elastic material is fixed (60). The front portion of the separation preventing portion 6 is fixed (61) to the front bottom portion 11, and therefore, when the shoe sole is bent to step on the foot, the separation preventing portion 6 is separated from the rear bottom portion 12 in the vicinity of the dividing portion 13. Prevents them from leaving the soles, which increases the fit.

The arch member 4 and the rear bottom 12 are connected to each other as shown in FIG.
They are connected to each other by the size holding member 2 shown in FIG. The size holding member 2 is an arch member 4 shown in FIG.
And a female fastener 25 fixed to the back counter 12a of FIG. 7B.
By joining the double-sided fasteners 24 and 25, the positional relationship between the front bottom portion 11 and the rear bottom portion 12 in the front-rear direction can be freely changed. Note that the engagement protrusion 41 may be provided on the arch member 4 in FIG. 7A, and the engagement recess 12c may be provided on the back counter 12a in FIG. 7B so as to engage with each other.

FIG. 8 shows a second embodiment of the second invention. In the second embodiment, as shown in FIG.
The tongue piece 12b is formed integrally with the outer sole 12o. The tongue piece 12b is inserted into the midsole of the front bottom portion 11 and has a tip portion that is large in the width direction as shown in FIG. So that they can't come out
The separation prevention unit 6 is configured.

Although the arch member 4 is fixed to the front bottom portion 11 in each embodiment of the second invention, the arch member 4 may be fixed to the rear bottom portion 12. In this case, the forefoot portion of the first upper 3A is made expandable and contractible in the front-rear direction, the second upper 3B is fixed to the front bottom portion 11, and the expandable portion is wrapped by the second upper 3B.

As shown in FIG. 9, the portion of the first upper 3A that is wrapped by the second upper may be constituted by a stretchable band-shaped member 3a. Further, a bellows-shaped member may be used as a material forming the separation preventing portion 6 in FIG.

[0031]

As described above, according to the present invention,
The size of the shoe can be adjusted according to the size change or difference due to the growth of the foot. In particular, since the size of both the sole and the upper changes, the comfort is good. In addition, since the shank is erected in the divided portion, the strength against torsion is large.

According to the third aspect of the present invention, since the separation preventing portion is provided, a portion near the divided portion of the front bottom or the rear bottom where the arch member is not fixed is hard to separate from the sole, so that a feeling of fit is enhanced. (Because it does not buzz), the comfort is further improved.

[Brief description of the drawings]

FIG. 1 is a side view, a bottom view, and a cross-sectional view of a size holding member of a shoe showing a first embodiment of the first invention.

FIG. 2 is a diagram showing the assembling procedure.

FIGS. 3A, 3B and 3D are a side view, a bottom view and a rear view of a shoe showing a second embodiment, and FIG. 3C is a sectional view of a size holding member.

FIG. 4 is a side view and a bottom view of a shoe showing a third embodiment.

FIG. 5 is a side view and a bottom view of a shoe showing a fourth embodiment.

FIG. 6 is a side view of the shoe showing the first embodiment of the second invention.

FIG. 7 is a side view, a perspective view of a back counter, and a cross-sectional view of a divided portion.

FIG. 8 is a side view, a sectional view, and a bottom view of the second embodiment.

FIG. 9 is a side view of a forefoot portion showing a modification of the first upper.

[Explanation of symbols]

 10: Shoe sole 11: Front bottom part 12: Rear bottom part 13: Dividing part 2: Size holding member 3: Upper 4: Arch member 3A: First upper 3B: Second upper 6: Separation preventing part

Claims (3)

[Claims] 1. A shoe sole is divided into a front sole portion and a rear sole portion, and an arch member constituting a shank is erected at a division between the front sole portion and the rear sole portion. The sole fixed to only one of the rear soles, the upper fixed to the front sole and the rear sole of the shoe sole is made to be able to expand and contract in the front-rear direction at the middle foot part, and the front sole and the rear sole of the shoe sole in the front-rear Size-variable shoes provided with a size holding member for fixing the positional relationship freely. 2. A shoe sole is divided into a front sole portion and a rear sole portion, and an arch member constituting a shank is erected at a division between the front sole portion and the rear sole portion. A first upper is fixed to only one of the rear soles, and a first upper is fixed to the arch member and one of the soles to which the arch member is fixed, and the first upper is extendable in the front-rear direction above the other sole. A size holding member for wrapping the telescopic portion of the first upper with a second upper fixed to the other shoe sole, and for fixing the front and rear soles of the shoe sole so that the positional relationship in the front-rear direction can be changed; Size variable shoes with. 3. The shoe sole according to claim 1, wherein a portion of the shoe sole near the divided portion of the front sole or the rear sole to which the arch member is not fixed is separated from the sole when the shoe sole is stepped on. Size-variable shoes with a separation prevention part that suppresses or prevents movement.