JPH073923Y2 - Base material for shoes - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] The present invention relates to a base material for shoes, which is suitable for a wearer's foot,
Moreover, it is an object of the present invention to provide a base material for shoes that allows the shoes to be formed relatively easily.

(Industrial field of application) A base material for forming shoes, particularly a base material for shoes using a waterproof and moisture-permeable base material piece.

(Prior Art) Since shoes are indispensable equipment for outdoor activities, research and development have been repeated for a long time in manufacturing these shoes, but those efforts are to improve the material and form of the material itself. The main idea is to obtain a shoe by using a bottom member as a base and attaching a covering member for a plurality of insteps or heels on the upper circumferential side of the bottom member. It is generally done.

The applicant of the present invention has proposed a technique such as Japanese Patent Laid-Open No. 59-160401 (Japanese Patent Publication No. 63-34721) in contrast to the above-mentioned conventional ones. In other words, this technology is intended to form a shoe by using a waterproof breathable membrane material and an integral material, and integrates a side piece part on which the instep or ankle part should be wrapped in series on both sides of the sole material. The base material formed on the base material is formed of a single material piece having a waterproof / moisture permeable layer, and a foot-corresponding portion and a heel-corresponding portion which are curved and projected in a substantially arc shape are provided in front and rear of the sole material, and Joint step portions that are joined to the toe-equivalent portion and the heel-equivalent portion are projectingly formed at both ends, and these joint step portions are joined to the toe-equivalent portion and the heel-equivalent portion, and at each side piece described above. Using an interior base formed by bonding an adhesive tape to each joint formed by joining a first joint edge formed to be joined on the instep and a second joint edge to be joined on the rear surface of the heel portion Is.

(Problems to be Solved by the Invention) In the case of using the conventional general type as described above, even if a desired shape can be formed depending on the shape of the covering member, a plurality of basic parts can be formed. Since a unit material is required, many steps are required for its production, particularly a large number of sewing steps, and the number of necessary members including auxiliary materials is inevitably increased, which inevitably leads to an increase in cost.

Moreover, since the strength mainly depends on the sewn joint between the bottom member and the covering member as described above, it is clear that particular attention must be paid to the sewn joint at that portion. Even if it does so, there is a disadvantage that it is not easy to obtain sufficient strength and durability.

The disadvantages of the conventional ones as described above are
Although it was able to be appropriately solved by the technique of 63-34721, according to the result of manufacturing various products by such a technique and actually examining it, even if the left and right feet of the wearer are essentially symmetrical, As for each individual foot, it is not easy to obtain a shoe that fits each foot of such a wearer because it is asymmetric both in plan and in three dimensions. That is, from such a situation, the one-piece material has a disadvantage that its form or configuration does not necessarily fit the wearer's foot specifically, and therefore the wearing comfort is not always preferable.

[Configuration of Device] (Means for Solving the Problem) The main substrate is composed of a main base material piece covering a foot portion to a heel portion and both side surfaces in series, and an auxiliary base material piece covering an upper surface of the upper portion. The piece of material has side wrapping parts integrally formed on both sides of the sole wrapping part formed with asymmetrical toe-corresponding parts and heel-corresponding parts. Forming a joint edge so as to project and forming a joint edge for the heel equivalent portion and a rear joint edge to be mutually joined on the rear surface of the heel portion, and forming an opening forming portion between each of these joint edges to form the auxiliary base piece. Is a base material for shoes, characterized in that an upper surface encapsulation portion located between the side surface encapsulation portions of the main base material piece is formed on one end side and a perforation front surface portion is formed on the other end side.

The number of base materials for forming a shoe is higher than that of conventional ones, by consisting of a main base material piece that covers the toe, heel and both sides in series and an auxiliary base material piece that covers the upper surface of the instep. However, it also greatly reduces the joining or sewing process.

The main base material piece as described above is a base material that is adapted to the asymmetrical shape of the foot by integrally forming the side surface wrapping portions on both sides of the sole wrapping portion having the asymmetrical toe and heel portions. The material is obtained, and moreover, the pivotal part on the foot encapsulation extending from the sole of the foot to the side surface is formed by an integral member, so that the characteristics of the material capable of obtaining the waterproof and moisture permeable property are sufficiently exhibited.

In the side surface encapsulation portion, the joint edge for the side edge of the foot equivalent portion is formed to project, and the joint edge for the heel equivalent portion and the rear surface joint edge to be joined to each other on the rear surface of the heel portion are formed. Side and heel side configurations are formed in the main substrate piece.

The opening forming portion is formed between the joint edges as described above, and the auxiliary base material piece, which is another base material, has the upper surface encapsulation portion located between the side surface encapsulation portions of the main base material piece on one end side. And the front surface of the opening on the other end side, it is suitable for accommodating a three-dimensional instep, and the opening is formed appropriately.

(Embodiment) A concrete embodiment of the present invention as described above will be described with reference to the accompanying drawings. Typical examples of the material pieces adopted in the present invention are shown in FIG. 1 and FIG. ing. That is, it is needless to say that waterproofness is important in such shoes, and it is preferable to eliminate moisture permeation such as perspiration during walking on the one hand. Since a stretched porous tetrafluoroethylene resin film has been developed, such a cloth is typically adopted. However, even if the characteristics or accuracy of the cloth is not reached in recent years, it may not reach that of the tetrafluoroethylene resin. Further, developments are being made to obtain such waterproof and moisture-permeable properties with other resins, and it goes without saying that cloths made of such other resins may be used. It is a three-layer type in which protective coatings 22 and 23 are used on both sides of the wet cloth 21, and the second
In the figure, the interposing cloth 24 is provided between the cloth 21 and the protective coating 22.
Is provided.

In any case, such a material is less likely to impair the waterproof and moisture-permeable performance of the cloth 21 described above, and protects the cloth 21 inside and outside, and also improves its aesthetic appearance. Is a 100% polyester 3-bar knit,
A 100% nylon non-woven fabric, a nylon non-woven fabric impregnated with urethane resin, or a polyester non-woven fabric impregnated with urethane resin is used. As the protective coating 23, a braided material of polyester or nylon having a denier of 10 to 40 is used.

Further, as the interposing layer 24, urethane foam having a thickness of 1 to 3 mm, particularly 1.5 to 2.5 mm or the like is fusion-bonded, and has a function of enhancing heat insulating property and improving fit.

As the physical properties of such material pieces, the water vapor permeability is 2000 g / m ² · 24 hr or more by JIS L1099B method, preferably 5000 g / m ² · 24 hr or more, and it has complete waterproofness,
With regard to wear resistance, JIS L1079C method is used for wear wheels with H ₂₂ of 5
It is preferable that the amount of abrasion loss be 20 mg or less after a load of 00 g and 1000 times of abrasion treatment.

The material of the present invention, which is formed by using the material piece 1 as described above, has a main base material piece 3 and an instep that integrally cover the toe part to the heel part or the side surface as shown in FIG. 3 or FIG. It is composed of an auxiliary base material piece 4 for covering the upper surface of the part, and the main base material piece 3 has an asymmetrical toe part 31 and a heel part 32 formed on the front and rear, and is a wrapping part for the sole of the foot.
Side surface encapsulation portions 33, 33 are integrally formed on both sides of 30, and joint edges 34, 34 with respect to the side edges of the toe corresponding portion 31 are formed asymmetrically in the side surface encapsulation portion 33, respectively. A joint edge (35) with respect to the heel equivalent portion (32) is formed symmetrically, and a perforation forming portion (36) is formed outside the joint edges (34, 35). What is formed between the opening forming portion 36 and the joint edge 35 is a rear joint edge that is mutually joined on the rear surface of the heel portion.
37, by joining the joint edge 35 to the side edge of the heel-corresponding portion 32 and mutually joining the rear surface joint edges 37, it is possible to appropriately form an envelope portion for the heel portion.

In contrast to the main base material piece 3 as described above, the auxiliary base material piece 4 is bonded to the auxiliary base material bonding edge 38 formed between the aforementioned bonding edge 34 and the side surface encapsulation portion 33 of the main base material piece 3. A central upper surface encapsulating portion 40 is formed between the side edges 48, 48, and an end joining edge 41 for the tip portion of the above-mentioned foot tip equivalent portion 31 is formed at one end of the central upper surface encapsulating portion 40, A front surface portion 42 of the opening is formed on the other end side of the central upper surface encapsulation portion 40, and the auxiliary base material bonding edge 38 and the opening portion described above are formed between the side edges 48 on both sides of the front surface portion 42 of the opening. Between them and, a covering portion 43 forming an outer blade is provided on both sides in front of the opening.

The one shown in FIG. 3 shows an embodiment suitable for outer-feet boots, and includes the main base material piece 3 and the auxiliary base material piece 4 as described above.
A base body obtained by sewn together and joining the joining edges with each other and adhering the adhesive tape 5 to each joining portion is as shown in FIG. While joining to the tip of 31, joining the auxiliary base material joining edge 38 and the joining edge 48,
Further, as described above, the joint edge 35 is joined to the edge of the heel-corresponding portion 32 and the rear joint edges 37 are joined together, so that the shoe base as shown in FIG. 4 is easily formed.

5 and 6 as opposed to those of FIGS.
The drawing shows an embodiment of the invention in which a boot-like base body for accommodating the ankle portion is obtained. That is, it is composed of a main base material piece 3a and an auxiliary base material piece 4a, and as shown in FIG. 5, the main base material piece 3a has a foot bottom covering portion 31a and a heel equivalent portion 32a which are asymmetrical in the front and back. Side surface envelopment portions 33a are integrally formed on both sides of 30a, and joint edges 34a for side edges of the foot tip equivalent portions 31a are projectingly formed on these side surface envelopment portions 33a and joint edges 35a for heel equivalent portions 32a. Are formed symmetrically and each of these joining edges 34
A perforation forming portion 36a is formed on the outer side between a and 35a, and a rear joint edge 37a is formed between the perforation forming portion 36a and the joint edge 35a, which is the same as in the case of FIG. However, as described above, the asymmetrical groove-shaped cutouts 39, 39a are formed between the sole encapsulation portion 30a and the side surface encapsulation portions 33a, respectively, and a cut joint is formed in the middle portion of the side surface encapsulation portion 33a. An edge 38b and an inner joint edge 38c connected to the edge 38b at a predetermined angle are formed.

Further, the auxiliary base material piece 4a for such a main base material piece 3a has connecting edges 41a, 4b for the joining edges 38b, 38b in the main base material piece 3a.
1a is formed on the front end side, and the instep upper surface covering portion 40a formed by forming the connecting edges 48a for the cut joint edges 38c, 38c on both sides continuous with the connecting edges 41a, 41a, and the instep upper surface covered portion 40a. Packet 40a
It is composed of the front face part 42a of the opening which is continuous with the.

That is, the joint edge 34a is joined to the peripheral side of the toe-equivalent portion 31a and the joint edges 38a are joined to each other, and both side edges of the groove-shaped cut-out portions 39 and 39a are joined to each other, and the circumferential side of the one heel-equivalent portion 32a is joined. The joining edges 35a are joined together and the rear joining edges 37a are joined together, the joining edges 41a of the auxiliary base material piece 4a are joined together with the joining edges 38b, and the joining edges 48c are joined to the notch joining edges 38c.
The state of the shoe base material in which a is joined and each joining portion is sewn as needed and then the adhesive tape 5 is attached is as shown in FIG. By forming the front equivalent portion 31a, it is possible to obtain a shoe that fits properly into each asymmetrical foot portion and is deeply accommodated in both shoe molds.

[Advantage of Invention] In the case of the present invention as described above, since a three-dimensional shoe base material can be obtained by the two base material pieces, that is, the main base material piece and the auxiliary base material piece, it is relatively easy to use the shoe base material. It is possible to obtain a base body, and since each of the base material pieces has a planar shape, it is possible to improve the waterproofness by effectively using a porous polytetrafluoroethylene film having waterproof and moisture-permeable properties by stretching treatment. While using it, try to use it comfortably even when sweating,
Moreover, it is an invention having a great effect industrially because it is possible to provide a product that fits with a left-right asymmetrical foot mold and is comfortable to wear even from this point of view.

[Brief description of drawings]

The drawings show the technical contents of the present invention. FIGS. 1 and 2 are partial sectional views of representative examples of material pieces used in the present invention, and FIG. 3 is a main substrate according to the present invention. Fig. 5 is a plan view showing an example of a piece and an auxiliary base material piece in an unfolded state, Fig. 4 is a perspective view showing an example of a shoe base material of the present invention formed of the base material pieces of Fig. 3, Fig. 5 FIG. 6 is a developed plan view of another embodiment of the main base material piece and the auxiliary base material piece according to the present invention, and FIG. 6 is a perspective view of the shoe base material according to the present invention. However, in these drawings, 1 is a piece of material, 3 and 3a
Is a main base material piece, 4 and 4a are auxiliary base material pieces, 21 is a waterproof and moisture-permeable cloth, 22 and 23 are protective coatings, 24 is an intervening cloth, 31 and 31a are toe parts, 32 and 32a are heels. , 33, 33a are side envelopes, 3
4, 34a, 35, 35a are respective joint edges, 36, 36a are perforation forming portions,
37 and 37a are rear surface joint edges, 40 is an upper surface encapsulation portion, and 42 and 42a are front surfaces of the opening.

Claims (1)

[Scope of utility model registration request] 1. A main base material piece covering a foot portion to a heel portion and both side surfaces in series, and an auxiliary base material piece covering an upper surface of an instep, wherein the main base material piece is an asymmetrical foot equivalent portion. Side wrapping parts are integrally formed on both sides of the sole wrapping part where the heel and the heel corresponding part are formed, and these side wrapping parts are formed with projecting joint edges for the side edges of the toe corresponding part and are equivalent to the heel. And a rear surface joint edge to be joined to each other on the rear surface of the heel portion, and an opening forming portion is formed between these joint edges. A shoe base material, wherein an upper surface encapsulation portion located between the encapsulation portions is formed on one end side, and a perforation front surface portion is formed on the other end side.