CN112203548A

CN112203548A - Outsole for a shoe and shoe provided with said outsole

Info

Publication number: CN112203548A
Application number: CN201980023608.7A
Authority: CN
Inventors: V·马拉马奇; S·斯塔里塔
Original assignee: Black Lines Ltd
Current assignee: Black Lines Ltd
Priority date: 2018-02-05
Filing date: 2019-02-05
Publication date: 2021-01-08
Anticipated expiration: 2039-02-05
Also published as: CN112203548B; BR112020015911B1; KR20200133735A; BR112020015911A2; MA51745A; IT201800002395A1; JP2021513475A; WO2019150344A1; EA202091875A1; AU2019214560A1; EP3749131A1

Abstract

An outsole for a shoe, the outsole being capable of being made in a co-extrusion process from a blend of two identical plastic materials; wherein the first strips are made of plastic material and have a light or teak colour, and the second strips (6a and 6b) are made of plastic material and have a dark colour or black colour for sealing the joints of the yacht splints, said first strips being arranged side by side and staggered with respect to the corresponding second strips; wherein the width of the first strip is substantially greater than the width of the second strip. The outsole is configured to reproduce visual and tactile effects of a teak bridge and deck of a yacht by inserting black seams in the teak strip; wherein the color of the first strip is interchangeable with the color of the second strip.

Description

Outsole for a shoe and shoe provided with said outsole

Technical Field

The present invention relates generally to an outsole for a shoe, preferably but not exclusively made of highly flexible polyvinyl chloride (PVC), and to a shoe comprising an upper sewn or otherwise secured to the outsole. The surface of the outsole made of PVC may be substantially flat or uneven; in either case, the outsole is made of two blends (blends) of different colors placed side by side to reproduce the effect of teak decks (teak decks) and yacht bridges (bridges of yachts) by interlude (interpersed) seams in the teak strips. In the flat form, the seams form a tread surface (tread) for walking together with the teak strip, whereas in the non-flat form the seams are first in contact with the ground, since they protrude from the rest of the outsole, preferably by about 3 or 5 mm.

Hereinafter, the term "flat outsole" refers to a portion of the surface of the outsole from which the rest of the outsole does not protrude, and the term "non-flat outsole" refers to a portion of the surface of the outsole provided with protrusions from the rest of the outsole. In other words, in the present description, the term "flat outsole" does not mean that the outsole has a surface that must fit on a geometrical plane.

The present invention relates to the field of the production of footwear for men and women, and in particular to a reduced type (lowered type) outsole made of highly flexible polyvinyl chloride (PVC), and to a shoe comprising an upper stitched to said outsole. The invention also relates to a corresponding production method for assembling an outsole, producing an outsole consisting of a sole, a heel and a shank by means of a co-extrusion process, and obtaining a complete shoe by means of stitching and/or gluing an upper.

Background

According to the prior art, shoes of the known type comprise an upper associated with an outsole which, provided with a heel, can be divided into a sole, a heel and a shank (shank), the shank being part of the outsole which does not come into contact with the ground when walking, since said heel, being either high or low, separates the shank from the ground; preferably, an insole, generally made of genuine leather or artificial leather, is inserted inside the upper, which is wrapped with padding to make walking more comfortable.

From US 2016/206041 a method is known for manufacturing outsoles made of plastic material by means of an injection molding production process. This method has the following disadvantages compared to the coextrusion process used in the present invention: the production cost is increased due to the construction of several molds. Indeed, to make each outsole, US 2016/206041 requires a double mold per foot, which must also be multiplied by the number of different sizes selected for producing each single shoe model. In addition, by injection molding, it is absolutely impossible to obtain a true "teak deck" effect; at best, the shape and color may be similar but perceived differently.

Shoes with plastic outsoles are also known from GB 2008926, which are obtained without any doubt by injection moulding methods, with the same limitations as described above.

Among the various types of outsoles made of leather, rubber or PVC, which satisfy specific fields of use and which satisfy fashion trends, the invention described herein relates to an innovative outsole, preferably made of PVC.

There are many types of footwear made from various PVC blends on the market.

In particular, it is well known that outsoles with spikes (or studs) made of rubber or PVC (obviously inspired by golf sports) were successfully introduced by the well-known brand of footwear in the early 1990 s.

However, these shoes have a series of drawbacks, in particular a lower walking comfort, in particular in summer shoes characterized by a lighter leather, lining and insole, with the result that the foot is more felt by the studs/studs of the outsole; and rapid wear of the stud/tack itself, with known difficulties in replacing the stud/tack or the entire outsole.

Disclosure of Invention

The invention derives inspiration from sailing and is in contrast to any previous solution, improving ergonomics, walking comfort, wear resistance of the materials and parts assembled with the shoe, and appearance.

The main object of the present invention is to overcome the drawbacks of the prior art.

Another object of the present invention is to propose a novel outsole, preferably made of PVC, obtained by using two blends with different colours, reproducing the effect of the yacht bridges and cleats from a visual and tactile point of view by interposing seams on the teak strips.

In a preferred embodiment, the invention is disclosed by way of non-limiting example only, and can be practiced by placing and connecting a plurality of PVC strips having teak color with a plurality of PVC strips having black color for sealing the seam of the yacht cleats in an interleaved arrangement with each other, wherein the teak color strips have a width significantly greater than the width of the black strips: for example 10 times larger.

Narrower black strips (i.e., those corresponding to the yacht deck seams) may also protrude from and be interleaved with teak-colored strips in accordance with the present invention.

Moreover, another object of the invention is to provide an innovative method of assembling an outsole to other parts of a shoe. More specifically, we refer to the type of thread used for sewing, using waxing

The line is "through" or just "decorative" (drawing inspiration from the sailboat world); said material is characterized by being harder than steel and therefore extremely resistant, but at the same time malleable by the waxed nylon thread commonly used for the manufacture of footwear. Furthermore, the use of said material allows to obtain a footwear as a whole with a certain high structural quality standard.

Last but not least the object is to achieve an invention of simple construction, with acceptable manufacturing costs and which can be obtained with conventional and known systems.

Drawings

Further characteristics and advantages of the invention will become apparent from the following detailed description of some preferred embodiments of the outsole or outsole parts (including the sole, heel and shank) which are schematically illustrated by way of non-limiting example in the accompanying drawings, in which:

FIG. 1 shows a bottom view of an outsole according to the present invention, wherein the black seam may or may not protrude from the surface of the rest of the teak colored outsole;

FIG. 2 schematically shows a bottom perspective view of a first embodiment of an outsole provided with a seam (6a) protruding from the rest of the outsole;

FIG. 3 is a side perspective view of a second embodiment of the outsole, wherein the seam (6b) does not protrude from the teak color strip;

FIG. 4 is a side view of the outsole of FIG. 2;

FIG. 5 shows a bottom view of a variant of the outsole of FIGS. 1 and 2, in which case the outsole is pre-perforated for receiving the tread with wax

A stitched seam of thread;

FIG. 6 is a bottom perspective view of a third embodiment of the invention, wherein the outsole is a seamless shoe sole with a protruding PVC seam (6a), the seam (6a) also continuing on the rear vertical portion of the heel;

fig. 7 is a rear view of a variation of the third embodiment in fig. 6, with the seam and teak colored portion continuing on the heel cap on the heel.

Detailed Description

In the following description, various features given with respect to specific examples may also be replaced with other different features presented in other exemplary embodiments.

With reference to the above figures, the bottom view in fig. 1 corresponds to a first and a second embodiment of the outsole according to the invention, both of which can be used to obtain footwear of the classic type for men and women, children (fig. 1 to 5).

The outsole according to the invention is preferably, but not exclusively, made of a plastic material, such as polyvinyl chloride (PVC), two blends with different colours being able to reproduce the effect of teak bridges and yacht decks, wherein teak strips are staggered with black seams (6a and 6 b). As a non-limiting example, the width of each teak-colored PVC strip may be 8 to 12 times (preferably 10 times) greater than the width of the adjacent black PVC strip (6a, 6b) having a seam for sealing the yacht cleats.

In its "flat" form, the seam 6b does not protrude from the rest of the outsole (fig. 1 and 3, which is preferably suitable for manufacturing shoes of the classic type, this configuration comprising the assembled heel (3) and sole (1), leaving free the shank (2).

FIGS. 4 and 5 show variations of the invention in which a wax of appropriate size is used according to the Goodyear or Blake/Rapid or Norwegian models

A thread (10) assembling the outsole with teak strip and seam strip to the leather insole (5) and the upper (4).

In the "non-flat" form in which the seam 6a protrudes, such as the PVC outsole described in fig. 2 and 4, the difference from the previous "flat" form is that in this case the thickness of the seam strip 6a is greater than that of the teak strip, so that the seam strip 6a protrudes from the rest of the outsole and represents the maximum grip when walking. Preferably, the protrusions will be 3 or 5 mm, not only contributing to the pleasing visual effect of the shoe as a whole, but also to excellent grip of the tread.

A third embodiment of the invention (fig. 6 and 7) is used to assemble an athletic shoe. In this third embodiment, the outsole made of PVC can be "flat" or "non-flat", which is seamlessly and uninterruptedly moulded between the heel (3), the sole (1) and the shank (2): thus, it forms the entire walking tread surface.

In this third embodiment, the seam (6a or 6b) may also extend up into the heel cap region (12), as shown in fig. 7, or terminate at the heel region (13), as shown in fig. 6.

It is apparent that the invention described herein accomplishes all of the intended objectives. In fact, the outsole structure according to the invention, besides being made with new material (different PVC blends), is of course more comfortable and ergonomic, since, in particular in the form with projecting seams 6a aligned with the walking direction, it has a number of advantages: providing greater stability of the gait and creating greater grip with the tread.

Furthermore, in both the form with "flat" sole and the form with projecting PVC seam (6a), the wear of the invention is less than that of the known solutions, in fact if the co-extrusion (co-extrusion) of the outsole coincides with the longitudinal direction of the seam (representing the walking support "on the road"), the transverse friction is negligible, thus guaranteeing a longer "life" of the outsole and of the shoe.

The invention thus conceived is susceptible of numerous equivalent changes and modifications both in function and in technique, all of which are within the scope of the inventive concept.

It should be understood that features described with respect to one embodiment of the invention may also be present in other embodiments without limiting the practice and scope of the invention itself.

The possible presence of reference numbers and measurements must be considered as reported specifically for the purpose of presenting the present description and may vary according to the constructive requirements of the outsole.

It is also clear that the characteristics described and identified by expressions such as "teak color" and "black seam" provided herein by way of non-limiting example relate only to one of the possible combinations with colors characterizing the outsole and the entire shoe construction, and that any combination between the constituent elements may be employed.

Thus, the wider and narrower strips (6a, 6b) may have a different color than that described above, or may interchange colors, without departing from the scope of the appended claims. For example, possible variations of the invention may include strips made of PVC that may be disposed transverse to the toe-heel direction, rather than longitudinally, or arranged obliquely in any direction (e.g., without limitation, 45 °).

Moreover, although the preferred material for the outsole is PVC, the outsole according to the invention can also be made of other plastic materials without altering its advantages or function.

Finally, all the construction details may be replaced with technically equivalent elements. In fact, the materials used, as well as the contingent shapes and dimensions, may be any according to requirements without thereby departing from the scope of the appended claims.

List of reference numerals:

1 outer sole

2 shoe rib

3 heel

4 shoe upper

5 inner bottom

6a second projecting strip (seam)

6b second non-projecting strip (seam)

9 sewn vamp/outsole seam

10 waxing

Thread

Claims

1. An outsole for a shoe, characterized in that the outsole can be made in a co-extrusion process from two blends of the same plastic material; wherein the first strips are made of plastic material and have a light or teak colour, the second strips (6a and 6b) are made of plastic material and have a dark colour or black colour for sealing the seams of the yacht splints, said first strips being arranged side by side and staggered with respect to the respective second strips (6a and 6 b); wherein the width of the first strip is substantially greater than the width of the second strip; wherein the outsole is configured to reproduce visual and tactile effects of a teak bridge and deck of a yacht by inserting black seams in the teak strip; and wherein the color of the first strip is interchangeable with the color of the second strip.

2. The outsole of claim 1, wherein the thickness of the second black strip or seam (6a) is greater than the thickness of the first teak strip to protrude from the rest of the outsole to provide greater grip when walking.

3. The outsole of any of the preceding claims, characterized in that the outsole comprises a heel (3), a sole (1) and a shank (2).

4. The outsole according to claim 1 or 2, characterized in that it is configured to completely cover the foot without differences between the heel (3), the sole (1) and the shank (2), so as to obtain the entire outsole forming the tread surface for walking.

5. The outsole of the preceding claim, wherein the second strips (6a and 6b) forming seams are also provided on the heel area.

6. The outsole of the preceding claim, wherein the second strips (6a and 6b) are also provided in the region of the heel cap above the heel.

7. The outsole of any of the preceding claims, wherein the first and second strips (6a, 6b) which are staggered with respect to each other are oriented longitudinally in the toe-heel direction.

8. The outsole of the preceding claim, wherein the outsole is also provided on the rear vertical portion of the heel.

9. The outsole of the preceding claim, wherein the outsole is also provided on a rear vertical portion of the heel cap.

10. The outsole of any of claims 1-6, wherein the first and second interleaved strips (6a, 6b) are oriented perpendicularly with respect to the toe-heel direction.

11. The outsole of any of claims 1 to 6, wherein the first and second strips (6a, 6b) which are staggered with respect to each other are oriented obliquely with respect to the toe-heel direction.

12. The outsole of any of the preceding claims, wherein the width of the first strip is 8 to 12 times, preferably about ten times, the width of the second strip (6a, 6 b).

13. The outsole of one of the preceding claims, wherein the plastic material of which the first and second strips are made is PVC, and the first and second strips are respectively made of two blends having different colors.

14. Shoe comprising an outsole and an upper (4) according to any one of the preceding claims, characterized in that it comprises a combination of stitching the upper (4) to an outsole made of plastic material or PVC, said combination being able to be manufactured according to Goodyear mode, Blake/Rapid mode, Norwegian mode, using a wax of suitable dimensions

The type of line acquisition.