SHOE SOLE WITH INTERCHANGEABLE OUTSOLE

Abstract

A footwear sole with an interchangeable outsole, where the sole is divided into at least two parts; an upper part or midsole (2) fixed to the body of the footwear, and an interchangeable lower part or outsole (3) that is removably attached to the fixed midsole by means of a mechanical dovetail attachment system (4a, 4b) of the lower side of the fixed midsole (2) to the upper side of the interchangeable outsole, enabling the replacement of the same by another similar outsole or another different outsole, either with a different type of surface (3a), and/or a different height, and/or with a different structure and/or a different appearance, such as colour, texture and/or material.

Claims

1. Shoe sole with interchangeable outsole comprising: a fixed upper part (2), which is fixed to the body of the footwear, and an interchangeable lower part (3) wherein the interchangeable lower part (3) is removably coupled to the fixed part by means of a tongue and a groove mechanical coupling system (4a, 4b) between the lower face of the fixed upper part (2) and the upper face of the interchangeable lower part (3), allowing the substitution of the interchangeable lower part (3) for a different one wherein the interchangeable lower part can be of a different type of sole (3a), a sole of different height, a sole of different structure, a sole with different appearance, such as color, texture, or material.

2. The shoe sole according to claim 1, wherein the coupling system (4a, 4b) is formed by a plurality of transverse channels (4a), and complementary projections (4b), of dovetail section configuration, so that the interchangeable lower part (3) can only be inserted laterally for its coupling to the fixed upper part (2).

3. The shoe sole according to claim 1, wherein the coupling system (4a, 4b) comprises an additional channel (4a′), and corresponding additional projection (4b′), at the front and at the rear of the sole with a circular shaped configuration.

4. The shoe sole according to claim 1, wherein the coupling system (4a, 4b) is made up of a plurality of transversal channels (4a), and complementary projections (4b), with a circular section configuration which means that the lower part (3) can only be inserted laterally for its coupling to the fixed upper part (2).

5. The shoe sole according to claim 2, wherein because the opposite sides of each of the parts (2, 3) of the sole (1) have a closed partition (5) such that, once these parts are coupled, the channels (4a) and projections (4b) of the coupling system are hidden and only a line of union between the two parts is visible.

6. The shoe sole according to claim 2, wherein, additional external stops (6) are included which fit into holes (7) located in correspondence.

7. The shoe sole according to claim 1, wherein it further comprises an intermediate part (8) which is removably coupled between the fixed upper part (2) and the interchangeable lower part (3).

8. The shoe sole according to claim 7, wherein in that the intermediate part (8) is joined by means of a tongue and groove mechanical coupling system (4a, 4b) of which it is provided on its upper face and on its lower face to fit respectively with the coupling means of the lower face of the fixed upper part (2) and with the coupling means of the upper face of the interchangeable lower part (3).

Description

DESCRIPTION OF THE DRAWINGS

[0026] In order to complement the description that is being made and with the purpose of helping to a better understanding of the characteristics of the invention, the present descriptive memory is accompanied, as an integral part of the same, by a set of drawings in which the following has been represented with illustrative and not limiting character:

[0027] FIGS. 1-A and 1-B.—Show two side elevation views of a first example of realization of the sole of footwear with interchangeable sole, object of the invention, specifically an example with dovetail-shaped channel-based coupling, where the interchangeable lower part is of a type with a higher relief sole in FIG. 1-A and of another type with a smoother sole in FIG. 1-B.

[0028] FIG. 2 shows a side elevation view of another example of the sole of the invention, in this case an example, also with dovetail channels as a means of coupling between the two parts of the sole and with additional coupling channels at the respective ends of the toe and heel.

[0029] FIG. 3.—Shows a perspective view of another example of the sole of the invention similar to that shown in FIG. 2, represented with its two parts in partially coupled position, appreciating the configuration of the same, in particular of the upper face of the interchangeable lower part.

[0030] FIG. 4.—Shows an upper perspective view of another example of the fixed upper part of the sole of the invention, specifically an example with circular or bulb-shaped channels, as a means of coupling its lower face with the interchangeable lower part.

[0031] FIG. 5.—Shows a side elevation view of the upper part of the sole shown in FIG. 4, showing the closed lateral partition of the same.

[0032] FIGS. 6 and 7.—Show two views, in top perspective and side elevation respectively, of an example of the interchangeable lower part of the sole of the invention, with coupling means complementary to the fixed upper shown in FIGS. 4 and 5.

[0033] FIG. 8.—Shows a lower plan view of the fixed upper and the interchangeable lower part of the sole of the invention, according to the example of said parts shown in FIGS. 4 to 7, represented in the initial phase of coupling.

[0034] FIG. 9.—Shows a perspective view of the sole of the invention, according to the example shown in FIG. 8, in this case represented with the two parts comprising once completely coupled.

[0035] FIG. 10.—Shows a perspective view of an example of the intermediate part that, optionally, comprises the sole of the invention, showing its configuration.

[0036] And, FIG. 11.—Shows a perspective view of an example of the sole of the invention that includes an intermediate part, represented with the three parts that it comprises in coupling phase, appreciating the configuration of each one of them.

PREFERRED EMBODIMENT OF THE INVENTION

[0037] In view of the aforementioned figures, and in accordance with the numbering adopted, several examples of non-limiting embodiments of the sole of the invention can be observed therein, which comprises what is indicated and described in detail below.

[0038] Thus, as can be seen in said figures, the sole (1) is divided into at least two parts, a fixed upper part (2), which is fixed to the body of the footwear (not shown) in a conventional manner, and an interchangeable lower part (3) which is removably coupled to the fixed part, allowing the substitution of the same for another one the same or for a different one, either with a different type of sole (3a), defined by its lower face (FIGS. 1-A and 1-B), and/or with a different height, and/or with a different structure to compensate for problems of dysmetry, and/or with a different appearance, such as color, texture, and/or material.

[0039] In any case, the fixed upper part (2) and the interchangeable lower part (3) are joined together by a system of mechanical coupling by tongue-and-groove joint (4a, 4b) of the lower face of the fixed upper part (2) with the upper face of the interchangeable lower part (3).

[0040] FIGS. 1 to 3 show how, in one embodiment, the coupling system is made up of a plurality of transverse channels (4a), and complementary projections (4b), with a dovetail section configuration, so that the interchangeable lower part (3) can only be inserted laterally for coupling to the fixed upper part (2).

[0041] Referring to FIG. 2, it can be seen how, optionally, said coupling system comprises an additional channel (4a′), and corresponding additional projection (4b′), at the front and at the rear of the sole, in this case with a circular-shaped configuration.

[0042] FIGS. 4 to 11 show how, in another embodiment, the coupling system is formed by a plurality of transversal channels (4a), and complementary projections (4b), with a circular section configuration which, likewise, means that the lower part can only be inserted laterally for coupling to the fixed upper part (2).

[0043] Furthermore, preferably, the opposite sides of each of the parts (2, 3) comprising the sole (1) have a closed partition (5) such that, once these parts are coupled, the channels (4a) and projections (4b) of the coupling system are concealed and only a line of connection between the two parts is visible.

[0044] Optionally, additional outer stops (6) are included which protrude slightly sideways and fit into corresponding holes (7).

[0045] Finally, referring to FIGS. 10 and 11, it can be seen how, in a variant of realization, the sole (1) also includes an intermediate part (8) which is removably coupled between the fixed upper part (2) and the interchangeable lower part (3) by means of the same type of tongue and groove mechanical coupling system (4a, 4b) of which it is provided on its upper face and on its lower face to engage respectively with the coupling means of the lower face of the fixed upper part (2) and with the coupling means of the upper face of the interchangeable lower part (3).

[0046] Thus, in the preferred embodiment, said intermediate part (8) has protrusions (4b) on its upper face that fit with the channels (4a) of the lower face of the fixed upper part (2), and with channels (4a) on its lower face that fit with the protrusions (4b) of the upper face of the interchangeable part (3). Furthermore, in this case both opposite sides have closed partitions (5), one protruding on the upper side and the other on the lower side, as opposed to the partitions (5) of the fixed upper part (2) and of the interchangeable lower part (3).

[0047] Having sufficiently described the nature of the present invention, as well as the manner of putting it into practice, it is not considered necessary to further explain it so that any person skilled in the art may understand its scope and the advantages deriving therefrom, it being noted that, within its essentiality, it may be put into practice in other forms of realization which differ in detail from the one indicated by way of example, and to which the protection claimed will also apply provided that its fundamental principle is not altered, changed or modified.