JPH0698054B2 - Inner boots for ski shoes - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ski boot, and more particularly to an inner boot for a ski boot that is mounted in an outer shell and has a boot body made of a flexible material.

[Prior Art] Recently, the inner boots to be mounted in the outer shell of ski shoes have been mainstream from sewn inner boots to molded inner boots in terms of heat retention, durability, quality stability in mass production, and the like. ing.

In such a molded inner boot, the boot body is generally formed of a foam material such as urethane foam.
Conventionally, it has been very difficult to satisfy both the holding property of the foot and the feeling of wearing.

That is, when a foam having a relatively low density is used, the flexibility is improved and the wearing feeling is improved, but there is a problem that the holding property is deteriorated due to the flexibility.

On the other hand, when a foam having a relatively high density is used, the hardness is improved and the holding property is improved, but there is a problem that the wearing feeling is deteriorated due to the hardness.

Therefore, conventionally, for example, as disclosed in Japanese Utility Model Laid-Open No. 63-71702, the boot main body is formed of a material having a relatively low hardness, and the outer side of the boot main body is provided on the instep or side of the heel. It is known that a concave portion is formed in a corresponding portion and an insert material having a hardness higher than that of the boot body is embedded in the concave portion.

[Problems to be Solved by the Invention]

However, in such a conventional molded inner boot, it is necessary to form a recess in the boot body and bury the insert material in this recess, which results in a complicated process and an increase in manufacturing cost. .

In addition, since a recess is formed on the outside of the boot body and a high hardness insert material is embedded in this recess, a predetermined gap is formed between the foot and the insert material, making it difficult to feel the change in hardness. However, there is a problem that it becomes difficult to obtain a sufficient holding feeling.

In particular, this tendency becomes remarkable in the case where the insert material is arranged on the side of the heel to prevent the foot from rising.

The present invention has been made to solve such conventional problems, and an object thereof is to provide an inner boot of a ski shoe capable of significantly improving foot retention and wearing comfort at a low cost. And

[Means for Solving the Problems]

The inner boots of a ski shoe according to the present invention are the inner boots of a ski boot, in which a sealing material is formed on the back side of the outer material that wraps the foot to form a tabi, and a soft material is arranged outside the tabi. A continuous foam body in which bubbles are communicated with each other in a part or all of the flexible material and the flexible material, and the flexible material made of a foam material arranged outside the tabi is molded into the continuous foam body. It is sometimes formed by impregnation and curing.

[Action]

In the inner boots of the ski shoe of the present invention, the coalesced bubbles are arranged in a part or all between the sealing material and the flexible material,
Since the flexible material is impregnated and hardened in this continuous foam, the hardness of the portion where the continuous foam is located becomes higher than the hardness of the flexible material.

〔Example〕

Hereinafter, details of the present invention will be described with reference to embodiments shown in the drawings.

FIG. 1 shows an embodiment of an inner boot of a ski shoe of the present invention, in which reference numeral 11 denotes an outer shell.
It shows the inner boots to be mounted inside 13.

As shown in FIG. 2, this inner boot 11 has a dress material 15
The tab 17 is formed by arranging the sealing material 17 on the outside of the tab, and the flexible material 21 is arranged on the outside of the tabi 19.

Here, the soft material 21 is formed of, for example, a foamed material such as urethane foam.

Further, the sealing material 17 is made of, for example, a urethane film, a vinyl chloride film, or the like, and has a flexible material 21 on the inner side during molding.
Acts to prevent leakage.

The outer material 15 is composed of a fabric 23 and a sponge layer 25, and the sponge layer 25 is formed of a foamed material in order to improve the feel of the skin.

Thus, in this embodiment, between the sealing material 17 and the flexible material 21, a continuous foam body 27 in which bubbles are communicated with each other is arranged, and the flexible foam material 21 is impregnated and cured. ing.

The open-cell foam 27 is made of a material such as polyurethane, vinyl chloride, or polystyrene, and has a relatively low density.

The inner boots of ski shoes configured as above are
On the outside of the seal material 17 of the tabi 19 made of the cloth 23, the sponge layer 25, and the seal material 17, after fixing the simultaneous bubble body 27 with an adhesive or the like, the flexible material 21 is molded on this outside, and at the time of this molding. It is manufactured by impregnating the bubbles of the interconnected cell body 27 with the soft material 21 and curing it.

Therefore, in the inner boot of the ski boot configured as described above, the simultaneous air bubbles are formed between the seal material 17 and the flexible material 21.
27 is arranged, and the flexible material 21 is impregnated and cured in the simultaneous foam body 27, so that the hardness of the portion where the simultaneous foam body 27 is located has the soft material 21.
It is possible to significantly improve the holding property of the foot and the feeling of wearing at a low cost, compared with the conventional one.

That is, the soft material 21 made of a foam having a relatively low density allows the wear feeling to be sufficiently satisfied, while the relatively high density of the open-celled cells 27 makes it possible to sufficiently improve the hardness and sufficiently maintain. It becomes possible to do.

Further, since it suffices to dispose the continuous bubbles 27 between the sealing material 17 and the flexible material 21, it becomes possible to manufacture at a relatively low cost.

FIG. 3 shows another embodiment of the present invention. In this embodiment, only the bottom portion 31 of the inner boot 29 is connected with the air bubbles 33.
The inner boots are made of sealing material 17
After fixing the continuous bubbles 33 to the bottom of the sheet by adhesion or the like, it is manufactured by the same method as in the above-mentioned embodiment.

Even in the inner boot of the ski boot configured as described above, it is possible to obtain substantially the same effect as that of the embodiment shown in FIG.

FIG. 4 shows still another embodiment of the present invention. In this embodiment, the continuous bubbles 41, 43 are arranged in the upper part 37 of the inner boot 35 and in the vicinity of the heel part 39 on the side of the heel part. And
This inner boot is manufactured by a method similar to that of the above-mentioned embodiment after fixing the simultaneous bubble bodies 41, 43 to the upper part 37 of the inner boot 35 and the heel part side 39 on the side of the heel part with an adhesive or the like. .

Even in the inner boot of the ski boot configured as described above, substantially the same effect as that of the embodiment shown in FIG. 1 can be obtained, but since the simultaneous bubble body 41 is arranged in the instep portion 37, the foot holding It is possible to effectively protect the instep part 37 during tightening by the device.

Further, since the continuous bubbles 43 are arranged in the vicinity 39 of the ankle, it is possible to effectively prevent the foot from rising.

In the embodiment described above, the seal material 17 is connected to
Although the example in which 27 is fixed with an adhesive has been described, the present invention is not limited to such an example, and for example,
Of course, it may be fixed by a pin or the like.

Also, the tabi 19 may be formed by removing the sponge layer 25, although the texture is slightly reduced.

〔The invention's effect〕

As described above, in the inner boot of the ski shoe of the present invention, the continuous bubbles are arranged in a part or the whole between the sealing material and the soft material, and the continuous bubbles in which the bubbles are communicated with each other are formed. Since the flexible material made of foam disposed on the outside of the tabi was impregnated and hardened during molding, the hardness of the portion where the continuous foam is located becomes higher than the hardness of the flexible material. It is possible to significantly improve the holding property and wearing comfort of the device at low cost.

[Brief description of drawings]

FIG. 1 is a partial longitudinal sectional view showing an embodiment of the inner boot of a ski shoe of the present invention. FIG. 2 is a longitudinal sectional view showing a portion A of FIG. FIG. 3 is a vertical sectional view showing another embodiment of the inner boot of the ski shoe of the present invention. FIG. 4 is an explanatory view showing still another embodiment of the inner boot of the ski shoe of the present invention. [Explanation of symbols for main parts] 11 …… Inner boots 15 …… Surface material 17 …… Seal material 19 …… Tabs 21 …… Flexible material 27 …… Coupled foam.

Claims (1)

[Claims] 1. An inner boot of a ski shoe, wherein a tabular material is formed by arranging a sealing material on the back side of a front material that wraps around a foot, and a soft material is disposed on the outer side of the tabi. Arranged a continuous foam body in which bubbles are communicated with each other in a part or all of the space, and by impregnating and curing the flexible material made of foam arranged outside the tabi in the continuous foam body at the time of molding. Inner boots of ski shoes characterized by becoming.