JPH07961Y2 - Footwear - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to footwear having an instep band, such as slippers and sandals, and in particular, an upper sole piece having a sole shape and an instep band which are integrally formed.

[0002]

2. Description of the Related Art Conventional footwear (slippers, sandals) is
It is manufactured by a method of manufacturing the whole by injection molding, or a method of sewing the upper band portion to the upper bottom piece or the outsole and adhering or sewing the middle bottom piece therebetween.

[0003]

However, since the product obtained by the former method is heavy and has no warp, it is difficult to walk, and it is not possible to give the user excellent wearing comfort. On the other hand, in the case of the latter method, since four pieces of the upper bottom piece, the middle bottom piece, the instep band and the outsole are manufactured by sewing or bonding, a lot of labor and materials are wasted. Moreover, when walking with slippers and sandals of such a structure, the instep of the foot tries to lift the instep band when raising the foot and taking a step, while the toes try to push down the upper bottom piece. . Therefore, a tensile force is repeatedly applied to the instep band, and this force is concentrated and applied to the end of the sewn portion of the instep band, which becomes a load of the sewing thread in this portion. Therefore, the conventional slippers and sandals often cannot be used because the sewing thread of the sewn portion of the instep band is loosened from the end before the bottom is worn down. Therefore, it has been desired to develop footwear that has high fastening strength between the instep band and the bottom piece and that does not impair comfort.

[0004]

SUMMARY OF THE INVENTION The present invention has been developed in view of the above, and has a sole-shaped upper sole piece, an instep band covering substantially the front half of the upper sole piece, and an inner peripheral edge of the lower surface of the upper sole piece. The groove for inserting the insole piece is integrally molded of synthetic resin.

[0005]

[Function] Since the instep band is integrally formed with the upper bottom piece, even if a load is repeatedly applied to the connecting portion between the upper band and the upper bottom piece,
The tensile force acts on the thickness of the instep on average, and it is hard to break. Then, when the middle bottom piece is fitted in the groove formed on the inner peripheral edge of the lower surface of the upper bottom piece, the middle bottom piece is guided to a predetermined position. In addition, when the insole piece is loaded in this way, the weight is lighter than that of a synthetic resin having a solid bottom, and the flexibility of the insole piece improves the wearing comfort.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. In the embodiment shown in the drawings, the slipper has a bag-shaped upper band 12 which is formed by connecting a substantially front half portion of an upper sole piece 11 having a sole shape.
The upper 10 covered with the above, the middle bottom piece 20 loaded so as to be wrapped by the side surface on the lower surface side of the upper bottom piece 11 of the upper 10, and the bottom of the middle bottom piece 20 and the bottom of the upper bottom piece 11. And the outsole 30.

The upper 10 has a groove 13 having a U-shaped cross section for inserting the inner bottom piece 20 in the inner peripheral edge of the lower surface of the upper bottom piece 11, and is integrally molded by injection molding a plastic material such as PVC. Therefore, the groove 13 of the upper bottom piece 11 is simultaneously formed when integrally molding. In addition, as shown in FIG. 1, the notch 1 is formed in a part of the lower projecting piece 14 constituting the groove 13.
5, 15 are formed to facilitate insertion of the outer peripheral edge of the insole piece 20. Further, as shown in FIG. 2, the groove 13 is formed so as to correspond to the thickness of the insole piece 20 and is relatively thin.
In the first half of the upper bottom piece 11 into which the
The width of the groove 13 is set to be narrow and the width of the groove 13 is set to be wide on the heel side into which the thick insole piece 20 is inserted.

The insole piece 20 is loaded to improve comfort and reduce weight, and a EVA-made hard cushion material 22 is placed on the rear half of the foot-shaped cardboard 21, and the cushion material 22 is removed. The front half of the cardboard 21 is covered with a soft, thin urethane cushion material 23. And
On the side surface of the middle bottom piece 20, there is formed a positioning step portion that engages with the step portions 16 formed in the groove 13 of the upper bottom piece 11. Therefore, the urethane cushion material 23
When the middle bottom piece 20 is fitted into the groove 13 of the upper bottom piece 11 with the upper side facing upward, the outer peripheral edge of the middle bottom piece 20 is determined by the groove 13 and the vertical position is determined. By being engaged with the portion, it is guided to a predetermined position in the front-back direction. Then, when the insole piece 20 is fitted into the groove 13, the lower projecting piece 14 of the groove 13 is attached to the insole piece 2 with an adhesive.
The slipper is completed by adhering the lower surface peripheral portion of the upper bottom piece 11 and the lower surface of the middle bottom piece 20 and the upper surface of the book bottom 30 together and bonding them together.

The outsole 30 has a sole shape, and if it is made of a relatively soft material such as a dela sole, felt, and soft sponge, it becomes a slipper, which is a hard material such as a semi-hard sponge. If it is made from various materials, it becomes a sandal.

Even when the instep band 12 repeatedly lifts the instep band 12 when walking while wearing the slippers having the above-mentioned structure, the instep band 12 is completely integrated with the upper bottom piece 11 at the time of injection molding. The strength of the connecting portion between the two is much stronger than the one connected later. Therefore,
It does not break from the connecting end of the instep band 12 and the upper bottom piece 11.

By the way, the present invention is not limited to the slippers described above, and it may be a sandal in which the upper band 12 and the upper bottom piece 11 are integrally formed, as described above.

[0012]

As described above, according to the present invention, the instep band and the upper bottom piece are integrally formed, and the groove for inserting the middle bottom piece is integrally formed on the inner peripheral edge of the lower surface of the upper bottom piece.
The work of sewing the instep band can be omitted, and
Since it is easy to load the insole piece, the manufacturing work time can be greatly reduced. Further, the strength of the connecting portion between the instep band and the upper bottom piece can be made much stronger than that of the one sewn with the thread. Therefore, it is possible to eliminate the drawback of the conventional slippers and sandals that the connecting portion between the instep band and the upper sole piece is cut before the bottom is worn, and it is possible to provide footwear with high durability at low cost. . In addition, even if the upper band and the upper sole piece are integrally molded, the insole piece can be loaded and the outsole can be bonded to the lower surface of the insole piece. It has a practical effect that the comfort can be secured and the appearance is not deteriorated at all.

[Brief description of drawings]

FIG. 1 is a plan view of an upper in the right half, and a bottom view of the left half.

FIG. 2 is a sectional view of a slipper.

FIG. 3 is a cross-sectional view taken along the line AA of the slippers.

FIG. 4 is a sectional view of the slipper taken along the line BB.

[Explanation of Codes] 10 Upper 20 Middle Bottom Piece 30 Outer Bottom 11 Upper Bottom Piece 12 Upper Band 13 Groove 14 Lower Projecting Piece 15 Notch 16 Step 21 Paper Cushion 22 EVA Cushion 23 Urethane Cushion

Claims (2)

[Scope of utility model registration request] 1. An upper bottom piece having a foot sole shape, an instep band covering substantially the front half of the upper bottom piece, and a groove for inserting the middle bottom piece into the inner peripheral edge of the lower surface of the upper bottom piece are integrally molded of synthetic resin. Footwear characterized by. 2. A cushioning material is attached to the latter half of the insole piece, and the outer peripheral edge of this insole piece is inserted into the groove of the lower surface of the upper bottom piece, and the lower surface of the insole piece and the lower edge portion of the upper bottom piece serve as the outsole. The footwear according to claim 1, wherein the footwear is adhered.