JPH09149802A - Insole for ski boot and manufacture therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily mold the vertical arch and horizontal arch of the sole just by modeling by stepping pressure. SOLUTION: For this insole 1, plural sheet members (resin layers) composed of a resin material are laminated, the outer shape of one resin layer 2 among them is turned to a flat elliptical plate shape and the shape of another resin layer 3 is turned to the shape for which an inner side is turned to only an approximately rear half part to a heel part including a foot arch part and an outer side part on the opposite side of the foot arch part is notched. Further, a projection part 3b is formed on the center part of the front end side of the resin layer 3 and a hole 3c is formed on a heel center part. By attaining such a shape, the arch for which the center part is raised in the inner and outer directions of the sole is precisely molded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insole for a ski boot mounted on the inner bottom of a ski boot, and in particular, by using a thermoplastic material, it is possible to mold it into a desired foot shape by pedaling. And a method for manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, as an insole for a ski boot to be mounted on the inner bottom of a ski boot, it has a structure in which a resin having a thermoplastic property is laminated, and can be processed and molded in accordance with the shape of the sole of each user. Things are known. Such an insole for ski shoes is heated to a predetermined temperature in an oven or the like, and then placed on a soft urethane mat or the like so that it can easily fit the shape of the sole of the foot, and the user's foot is placed on it. It is deformed according to the shape of the sole of each user by applying a pedaling pressure, and is then left to cool to fix the mold to form a desired foot mold. According to this, the user can obtain a good fit and reduce the loss of the force transmitted from the sole to the ski boot.

[0003]

However, in the conventional insole for ski boots as described above, when the user takes a pattern by stepping on the foot, the arch in which the central portion is raised in the front-rear direction of the sole of the user (see FIG. 9 (a). Hereinafter, a vertical arch), for example, a shape such as an arch can be copied, but an arch in which the central portion is raised inward and outward of the sole (FIG. 9B). ). Hereinafter, it was not possible to properly copy the horizontal arch), particularly the horizontal arch shown by the diagonal lines in FIG. 9 (c). Therefore, in order to form a horizontal arch in a conventional insole for ski shoes, after forming a vertical arch by stepping pressure, a method of pressing the insole from the back side with a finger to form it must be adopted. There was a problem that it took time to mold the lateral arch.

The present invention has been made in order to solve the above-mentioned problems, and makes it possible to copy the vertical arch and the lateral arch of the sole of the foot by simply taking a pattern by stepping on the lateral arch. An object is to provide a molded insole for ski shoes and a method for manufacturing the same.

[0005]

In order to achieve the above-mentioned object, the insole for skis according to the invention described in claim 1 has a plurality of sheet-shaped members, each of which has at least two layers of thermoplastic material. The insole for a ski shoe, which is made of a structure laminated on the above, can be molded into a desired foot mold by heating to a predetermined temperature and applying a pressure, wherein one layer of the sheet member is a sheet member, Only the rear half of the sole including the arch area to the heel side is formed, and the central part of the front end side is projected to the toe side, and the arch with the central part protruding inward and outward of the sole is molded It is something that can be done.

In the above structure, one of the at least two thermoplastic sheet members is
Only the rear half of the sole including the arch area to the heel side is formed, and the central part of the front end side is projected to the toe side, and the arch with the central part protruding inward and outward of the sole is molded Since this is possible, this one-layer sheet member is laminated in the portion corresponding to the recessed portion of the sole (the portion where the tread pressure is weak such as the arch portion). Therefore, when copying the shape of the sole by applying the pedal pressure, the portion where the sheet member of one layer is laminated has more layers than the other portion and is less likely to be dented. Since the layer is thin, it is easily recessed. Therefore, since the convex portion can be molded more clearly than the conventional insole in the portion where the sheet members of one layer are laminated, in the conventional insole, the lateral portion which cannot be formed only by the molding by the stepping pressure. The arch,
It can be easily molded by just taking a mold by treading.

A ski insole according to a second aspect of the invention is the ski insole according to the first aspect,
The one-layer sheet member of the sheet member has a notched outer portion facing the arch and a substantially circular notched central portion of the heel portion.

In the above structure, one of the at least two thermoplastic sheet members is
The outer part facing the arch is notched, and the center part of the heel part is cut out in a substantially circular shape, so the outer part of the foot, which is the part where the center of gravity of the sole is applied, and the center part of the heel are easily recessed. Because of the structure, the lateral arch can be more clearly molded, and the uneven shape of the sole can be accurately molded.

A ski insole according to a third aspect of the present invention is the ski insole according to the first aspect,
A single-layer sheet member of the sheet member is formed by cutting out from an outer side portion facing the arch portion to a portion extending to a central portion of the heel portion.

In the above structure, the sheet member of one layer among the sheet members is cut away from the outside portion facing the arch portion to the portion applied to the central portion of the heel portion, so that all the center of gravity of the sole is applied. Since the part is easily dented, the uneven shape of the sole can be accurately molded, especially the lateral arch can be clearly molded, and it can be used for the movement line of the center of gravity load of the sole during normal running. The shape will follow.

Further, in the method for manufacturing an insole for skis according to the invention described in claim 4, a plurality of sheet-like members containing at least two layers of a material having thermoplasticity are laminated in multiple layers and heated to a predetermined temperature. A method for manufacturing an insole for a ski boot, which is formed into a desired foot shape by applying pressure to the foot, and as a single layer in the seat member, including the arch part of the sole, only the substantially half part up to the heel side. And, using a sheet member having a shape in which the central portion of the front end side thereof is projected to the toe side, by applying pressure to these laminated sheet members,
This is to form an arch with a raised central part in the inner and outer directions of the sole.

In the above-mentioned method, at least two layers of the thermoplastic sheet member are provided, and only the substantially rear half portion up to the heel side including the arch area of the sole is formed, and the central portion on the front end side is formed. By using a sheet member that has a shape protruding toward the toe side and applying pressure to these laminated sheet members, an arch with a raised central portion in the inward and outward direction of the sole is molded, so that the recessed portion (the arch part of the sole) is formed. This one-layer sheet member is laminated in a portion corresponding to a portion where the pedaling pressure is weak). Therefore, when copying the shape of the sole by applying the pedal pressure, the portion where the sheet member of one layer is laminated has more layers than the other portion and is less likely to be dented. Since the layer is thin and it is easy to dent, it is easier to mold the convex part of the insole, and it is an insole that can mold the uneven shape that matches the shape of the sole more accurately than before. In the insole, it is possible to manufacture an insole that can easily form a lateral arch that could not be formed only by patterning by stepping pressure, by simply molding by stepping.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION An insole for a ski shoe according to an embodiment of the present invention (hereinafter referred to as an insole) will be described below with reference to the drawings. 1 is an exploded perspective view of an insole (for the right foot) of this embodiment, FIG. 2 is a perspective view of the insole before molding, FIG. 3 is a top view of a resin layer portion of the insole before molding, and FIG. 5 is a perspective view showing the insole after molding, FIG. 5 is a side view showing the insole after molding, and FIG. 6 is a sectional view of the insole. The left end of the drawing is the toe side and the right end is the heel. It shows the side. The insole 1 is composed of two sheet members (hereinafter referred to as resin layers) 2 and 3 made of a resin material having thermoplasticity, and a surface material 4 laminated on the front and back surfaces of these resin layers 2 and 3. It consists of the backside material 5. The type of the thermoplastic resin used for these resin layers 2 and 3 is not particularly limited, but it is preferable to use a thermoplastic resin that can be plastically deformed by a pedaling pressure of 40 to 70 degrees. If the temperature at which plastic deformation is possible is lower than 40 degrees, it will be deformed due to the body temperature of the person wearing the ski boots, and its shape cannot be maintained. Also, if the temperature exceeds 70 degrees, the soles of the feet will be burned during molding. This is because there is a possibility of being injured. Examples of such thermoplastic resins include vinyl resins, polyethylene resins, ethylene-vinyl acetate (EVA) resins, chlorinated polyether resins, acrylic resins and the like.

The shapes of the resin layers 2 and 3 will be described. The outer shape of the resin layer 2 is a flat elliptical plate shape. As shown in the figure, the resin layer 3 has only an inner part from the arch part to the latter half part, and as shown by 3a in the figure, an outer part is a part facing the arch part, that is, the arch part in the insole 1. The part on the opposite side of is cut out. Further, the central portion of the resin layer 3 has a shape having a protruding portion 3b protruding toward the toe portion side rather than the inner side portion and the outer side portion, and a substantially circular hole 3c is provided near the center of the heel portion. By forming the resin layer 3 into such a shape, the portion of the sole on which the center of gravity is applied, that is, the toe portion, the outer side portion, and the insole 1 portion corresponding to the center of the heel has a substantially single-layer structure. The part has a two-layer structure. Therefore, the insole 1 has a two-layer structure in which the convex portion is to be formed corresponding to the concave portion of the sole, and the concave portion is to be formed in a one-layer structure corresponding to the convex portion of the sole. Will be.

Next, a method of molding a foot mold with the insole 1 will be described. Before the molding process, as shown in FIGS. 1 to 3, the insole 1 in which the resin layers 2 and 3, the front surface material 4 and the back surface material 5 are laminated has a flat shape. The insole 1 is heated to 60 to 70 degrees in an electric oven or the like to make the resin layers 2 and 3 plastically deformable. Then, it is placed on a soft urethane mat or the like so that it fits easily to the shape of the sole of the foot, and the foot is placed on the mat and pressure is applied. By doing so, as shown in FIG. 3, the insole 1 is deformed by bending the arches and heels along the shape of the soles. Then, the insole 1 is allowed to cool and harden, and the deformed shape is memorized. At this time, as described above, since the insole 1 has a two-layer structure where the convex portion is to be molded, it is difficult to be recessed, and the insole 1 is a one-layer structure where the concave portion is to be molded, so that the insole 1 is easily dented Has become.

Thus, according to the insole 1 of this embodiment,
The resin layer 3 has a shape 3a in which the inner side portion is made only from the arch portion portion to the latter half portion, and the outer portion which is the opposite side of the arch portion is cut out, and the protrusion 3 is formed at the center portion on the front end side.
b, and by forming a substantially circular hole 3c in the vicinity of the center of the heel portion, when the shape of the sole is copied by treading pressure, a convex portion should be formed corresponding to the depressed portion of the sole Has a two-layer structure and is unlikely to be recessed, and a portion where a recess is to be formed corresponding to the convex portion on the bottom of the foot on which the center of gravity is applied has a single-layer structure and is easily recessed. Therefore, the shape of the sole can be more accurately copied than that of the conventional insole, and in particular, the convex portion can be clearly molded. Further, according to the conventional insole, the molding of the lateral arch cannot be performed only by treading pressure, and the lateral arch is molded by manually pressing from the back side of the insole after treading. According to the insole 1,
The lateral arch can be molded only by taking a mold by pedaling.

Next, FIG. 7 shows another embodiment of the present invention.
This will be described with reference to FIG. FIG. 7 is a top view showing a resin layer portion (before molding) of an insole according to another embodiment. In the above-described embodiment, as shown in FIG. 3, the inner part of the resin layer 3 of the insole 1 is limited to only the second half part from the arch part, and the outer part corresponding to the opposite side of the arch part is notched 3a.
Further, the shape is such that a protrusion 3b is provided in the central portion on the front end side, and a substantially circular hole 3c is provided near the center of the heel portion. However, in the embodiment shown in FIG. 7, the outer portion corresponding to the opposite side of the arch part is formed. The shape that cuts out all the parts around the center of the heel part is. The members other than the resin layer are the same as those shown in FIG. By using a resin layer having such a shape, all the parts of the insole, on which the center of gravity of the sole is applied, have a substantially single-layer structure, and the other parts have a double-layer structure. The lateral arch shape can be molded more accurately. In particular, when the insole 1 for ski shoes of the form shown in FIG. 7 is used, the center of gravity load movement of the sole of the foot during running is performed while forming a lateral arch (in normal running, as shown in FIG. 8). , The center of gravity passes through the outside from the heel side, then goes inward and comes out from the toes on the thumb side), maintaining normal running (skiing) and standing posture,
Smooth exercise is possible.

In the above embodiment, the resin layer portion of the insole 1 has a two-layer structure, but it may have a multilayer structure in which resin layers are further laminated. Further, although the resin layer 2 is laminated on the resin layer 3 in the above embodiment, the resin layer 3 may be laminated on the resin layer 2. Further, although the resin layer 2 and the resin layer 3 have been described in the above embodiments, the material for forming these layers may be any material as long as it partially contains a thermoplastic material such as resin. In addition to the material, the material may include other material having no thermoplasticity such as sponge. In this case, the formation of the lateral arch can be more significantly performed.

[0019]

As described above, according to the insole for skis according to the invention described in claim 1, one of the at least two layers of the thermoplastic sheet member is the sole of the foot. Including the part, only the second half up to the heel side,
Moreover, since the center part of the front end side is made to project to the toe side, and the arch in which the center part is raised inward and outward of the sole can be molded, the recessed part of the sole (such as the arch part). This one-layer sheet member is laminated on a portion where the pedaling pressure is weak). Therefore, when copying the shape of the sole by applying pedaling pressure, the portion where the sheet member of one layer is laminated has more layers than the other portion, and thus is less likely to be dented, and the other portion is less than this portion. Since the layer is thin, it is easily recessed. Therefore, since the convex portion can be molded more clearly than the conventional insole in the portion where the sheet members of one layer are laminated, in the conventional insole, the lateral portion which cannot be formed only by the molding by the stepping pressure. The arch can be easily molded simply by making a mold by pedaling.

Further, according to the insole for skis according to the invention described in claim 2, in addition to the effect obtained by the insole for skis according to the invention as defined in claim 1, at least 2
The one-layer sheet member of the sheet member having the thermoplasticity of the layer, the outer portion facing the arch portion is cut out, and,
By cutting out the center part of the heel part in a substantially circular shape, the outer layer of the foot facing the arch part, which is the part where the center of gravity of the sole is applied, and the stack of the center part of the heel, etc. are also thinned and recessed. Because of the easy structure, the lateral arch can be molded more clearly, and the uneven shape of the sole can be accurately molded.

According to the insole for ski boots of the third aspect of the invention, the portion of the one-layer seat member of the seat member extending from the outer side facing the arch to the center of the heel. Since it is cut away, it is easy to dent all parts where the center of gravity of the sole is applied, so the uneven shape of the sole can be molded more accurately, especially the lateral arch can be molded more clearly . In addition, it becomes along the movement line of the center of gravity load on the sole of the foot during normal running, which enables smooth movement.

Further, according to the method for manufacturing an insole for skis according to the invention described in claim 4, as one layer in at least two layers of the thermoplastic sheet member, including the arch portion of the sole, the heel. The sheet member having a shape in which only the substantially rear half portion up to the side is formed, and the central portion of the front end side thereof is projected toward the toe side, and by applying pressure to these laminated sheet members, the inner and outer directions of the sole of the foot are increased. Since the arch having a raised central portion is molded, this one-layer sheet member is laminated on the recessed portion of the sole (the portion where the tread pressure is weak such as the arch portion). Therefore, when copying the shape of the sole by applying pedaling pressure, the portion where the sheet member of one layer is laminated has more layers than the other portion, and thus is less likely to be dented, and the other portion is less than this portion. Since the layer becomes thin and the layer is likely to be recessed, it is possible to manufacture an insole in which the convex portion is easily molded. This insole can be molded with an uneven shape that more accurately matches the shape of the sole than in the past.In the conventional insole, a lateral arch that could not be formed only by patterning by treading was used. It can be easily molded simply by molding.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an insole according to an embodiment of the present invention.

FIG. 2 is a perspective view of an insole before molding.

FIG. 3 is a top view of a resin layer before molding.

FIG. 4 is a perspective view showing a molded insole.

FIG. 5 is a side view showing the insole after molding.

FIG. 6 is a sectional view of an insole.

FIG. 7 is a resin layer portion of an insole according to another embodiment (before molding).
FIG.

FIG. 8 is a diagram showing a line of movement of a center-of-gravity load on the sole of a foot when running.

FIG. 9 (a) is a side view of the foot to show the longitudinal arch,
(B) is a perspective view of the foot for showing a lateral arch, (c) is a bottom view of the sole.

[Explanation of symbols]

 1 Insole 2,3 Sheet member (resin layer) 3b Projection 3c Hole

Claims (4)

[Claims] 1. A structure in which a plurality of sheet-shaped members containing at least two layers of a material having thermoplasticity are laminated in multiple layers, and is molded into a desired foot mold by heating to a predetermined temperature and applying pressure. In the insole for ski shoes capable of, the one-layer sheet member of the sheet member is only approximately the latter half portion up to the heel side including the arch part of the sole,
In addition, an insole for ski boots, characterized in that the center portion of the front end side thereof is formed to project to the toe side, and an arch having a raised central portion can be formed inward and outward of the sole. 2. The one-layer sheet member of the sheet member is characterized in that an outer side portion facing the arch portion is cut out, and a center portion of the heel portion is cut out in a substantially circular shape. The insole for ski shoes according to 1. 3. The one-layer sheet member of the sheet member has a notched shape from an outer side portion facing the arch portion to a portion extending to a central portion of the heel portion. Insole for ski shoes. 4. An insole for ski boots, wherein a plurality of sheet-shaped members containing at least two layers of a material having thermoplasticity are laminated in multiple layers, and heated to a predetermined temperature to apply pressure to form a desired foot shape. In the manufacturing method of the sheet member, as a single layer in the sheet member, a sheet member having a shape in which only a substantially rear half portion including the arch part of the sole to the heel side is formed, and a central portion of the front end side thereof is projected to the toe side. A method of manufacturing an insole for ski shoes, characterized in that an arch having a raised central portion is formed inward and outward of the sole by applying pressure to these laminated sheet members.