CN112839540B

CN112839540B - Shoe structure for luminous shoes

Info

Publication number: CN112839540B
Application number: CN201980066461.XA
Authority: CN
Inventors: M·莫莱迪波莱加托; I·巴尔别罗
Original assignee: Geox SpA
Current assignee: Geox SpA
Priority date: 2018-08-09
Filing date: 2019-08-08
Publication date: 2023-06-06
Anticipated expiration: 2039-08-08
Also published as: CN112839540A; IT201800008008A1; EP3833207B1; ES2955659T3; WO2020031126A1; EP3833207A1

Abstract

The invention relates to a shoe construction (1) for a luminous shoe, comprising a shoe upper (2) and a connection unit (4) associated with the shoe upper (2), wherein the connection unit comprises a main body (5) and a connection line (6) extending from the main body (5) for connecting the connection unit to a control unit and/or a battery of an electronic luminous system, wherein the main body (5) is provided with a connection port (7) for connection to an external electronic device and a junction (8) for contact of the connection line, wherein the connection port (7) has an access direction (A) and the connection line (6) has an extension direction (E) at the junction (8), wherein the access direction (A) and the extension direction (E) are neither aligned nor parallel to each other, the access direction (A) and the extension direction (E) forming an angle different from 180 °.

Description

Shoe structure for luminous shoes

Technical Field

The present invention relates to a shoe construction for a luminous shoe, of the type comprising a connection unit for connection with an external electronic device, and to a connection unit of the above-mentioned type.

The invention also relates to a luminous shoe comprising the shoe structure.

Background

Luminous shoes for enhancing the visibility of the wearer of the luminous shoe or for recreational purposes are known today.

The luminous shoes provided in the known art mainly comprise a vamp, a sole and an electronic luminous system, which generally comprises a luminous display or luminous band, a battery, a control unit and a connection unit connected to the control unit and/or the battery by suitable connection lines.

The connection unit may easily charge the battery and/or serve as a port for data exchange between the control unit and the external electronic device, for example, allowing a predetermined message to be displayed to be placed in the electronic lighting system.

In the known luminous shoe, the connection unit comprises a connection port, for example a USB port, and said connection line, wherein the connection port and the connection line are arranged opposite to each other and aligned with each other.

In fact, in such a connection unit, at the junction provided for the contact of the connection line at its end in the vicinity of the connection port, said connection line has an orientation corresponding/coinciding with the access direction of the connection port.

The connection unit of the type described above is usually associated with the luminous shoe at the vamp or tongue of the luminous shoe, which tongue may be made in one piece with the vamp or may be associated with the vamp by stitching or gluing, and in particular it may be arranged between the vamp or tongue and the lining of the luminous shoe and the vamp or tongue, or may be arranged between the different layers of the vamp or tongue.

In particular, the known art provides solutions in which the connection unit faces the inside of the luminous shoe, for example at the mouth of the luminous shoe, and solutions in which the connection unit faces the outside of the luminous shoe, for example at the tongue of the luminous shoe.

However, the connection unit facing the inside of the luminous shoe is particularly uncomfortable for the wearer, since this involves in particular a hindrance at the mouth of the luminous shoe, giving the wearer the impression that there is an undesired foreign body inside the luminous shoe.

For the connection unit located at the tongue facing the outside of the luminous shoe, it is also uncomfortable for the wearer, even if it does not give the wearer the feeling of having undesired foreign bodies inside the shoe.

In fact, in this case, it should be noted that, in order to allow the wearer to also easily access the connection port of the connection unit while wearing the luminous shoe, said connection unit is integrated with the luminous shoe such that the connection port faces a cutout provided on the external upper portion of the tongue, wherein the cutout extends in a central position and substantially horizontally (i.e. transversely) on the tongue.

In practice, the connection unit with the associated connection line extends substantially longitudinally on the tongue, i.e. from the upper towards the lower part of the tongue.

As mentioned above, the presence of the connection unit at the tongue inconveniently determines an increase in the size of the tongue itself, in particular in terms of its thickness.

Disadvantageously, the thick tongue may be pressed against the wearer's ankle, causing discomfort to the wearer themselves.

It is also disadvantageous that the thick tongue constitutes an aesthetic limitation for the whole luminous shoe and therefore in terms of the realisation of the aesthetic variants of the luminous shoe.

It should also be noted that, as mentioned above, in the solution of providing a connection unit in combination with the tongue, the luminous shoe generally comprises an appendix or strip made in a portion integral with the tongue and with the lining, respectively, or with the different layers, and which extends between the tongues themselves towards the connection portion connecting the upper and the sole, for housing the connection line.

Such accessories or straps are disadvantageously involved in order to enhance the wear resistance of the materials used to make the luminous shoe and in particular may make the assembly operations between the different layers of the tongue or between the tongue and the lining laborious, thus increasing the costs.

Furthermore, the accessory or strap constitutes a kind of "bridge" which accommodates/contains the connecting line and extends inside the luminous shoe, for example when inserting the foot into the luminous shoe, the wearer may accidentally but still easily break it, for example by tearing, thereby damaging the connecting line.

Furthermore, in known luminous shoes, specific control buttons are usually provided which act on the electronic luminous system to switch on and off the luminous display or luminous band.

In some solutions provided in the known art, the control buttons are placed on a plate/surface of the connection unit.

In fact, in this solution, the control button is placed between the connection port and said junction point of the connection line.

The connection ports of the connection units, the control buttons and the connection lines at the bonding points are substantially aligned with each other.

Accordingly, the connection unit comprising the control button is larger in size with respect to the connection unit without the control button, and thus, in the above-described solution of coupling the connection unit with the tongue of the luminous shoe, the thickness of the tongue is inconveniently further increased or in any case the thickness of the tongue portion is increased.

Furthermore, in the above-described scheme, the control button is located near the shoelace or the closure strap that is generally provided on the luminous shoe, and thus, during use of the luminous shoe, the control button is depressed and is accidentally pressed by the shoelace or the closure strap whenever the tongue is lowered (also including a moderate lowering).

In order to partially solve the above drawbacks, another solution is described in the known art japanese document JP 3210703U, in which in a luminous shoe a connecting unit of the above type comprising a control button is combined with a strip of the tear-open closing strip type, movable and reversible on the tongue.

In detail, unlike the solutions described above, in the embodiment of JP 3210703U comprising said strap, the connection unit extends substantially transversely with respect to the tongue and longitudinally on the strap when the strap itself is fixed, i.e. closed, above the tongue.

In this case, however, the connecting line bypasses the strap and extends along the side of the shoe that is more attached to the wearer's foot, thereby giving the wearer itself discomfort, i.e., annoyance and inconvenience.

Furthermore, this solution may involve problems of sewing of the vamp portion, with the risk of damaging the thread.

Disclosure of Invention

The technical problem underlying the present invention is to provide a luminous shoe with structural and functional characteristics which overcomes one or more of the drawbacks mentioned above with reference to the known art.

According to a first aspect of the present invention, the above-mentioned problems are solved by a connection unit, in particular but not exclusively for a light-emitting shoe, which connection unit is adapted to be combined with a vamp of the light-emitting shoe or with a tongue of the light-emitting shoe, which tongue is made in one piece with the vamp or is constrained to the vamp, for example by stitching or gluing, which connection unit comprises a body and a connection line extending from the body for connecting the connection unit to a battery and/or a control unit of an electronic lighting system of the light-emitting shoe, wherein the body is provided with a connection port for connecting the connection unit to an external electronic device and a junction point for contact of the connection line at its end in the vicinity of the connection port, wherein the connection port has an access direction and the connection line has an extension direction at the junction point, wherein the access direction and the extension direction are neither aligned nor parallel to each other, the access direction and the extension direction forms an angle different from 180 ° with the extension direction.

Preferably, the access direction and the extension direction lie on the same plane or on planes substantially parallel to each other.

Preferably, the access direction and the binding point lie on the same plane or on planes substantially parallel to each other.

Preferably, the access direction, the extension direction and the binding point lie on the same plane or planes parallel to each other, wherein the same plane or planes parallel to each other are parallel to the body.

In this way, the overall size of the present connection unit is advantageously reduced with respect to connection units according to the known art, and therefore, whenever combined with the vamp or tongue of a luminous shoe, the extension of the vamp portion or tongue portion, which is increased in thickness due to the presence of the connection unit, is reduced, thus improving the comfort of the wearer.

Furthermore, the reduction of the extension of the area of increased thickness of the vamp or tongue is advantageously positively reflected in the possibility of realising an aesthetic variation of the luminous shoe.

Preferably, the access direction and the extension direction form an angle of less than 180 °, and more preferably an angle equal to about 90 °, however, the possibility of providing angles of different values is not excluded.

Preferably, the body comprises a first length portion at which the connection port is arranged and a second length portion at which the junction is arranged, wherein more preferably the second length portion extends from the first length portion.

Preferably, the access direction, the extension direction and the binding point lie on the same plane or on planes parallel to each other, wherein the same plane or the planes parallel to each other are parallel to the first length portion and/or the second length portion.

Preferably, the first length portion and the second length portion form an angle with each other different from 180 °, more preferably equal to about 90 °, and therefore the body preferably has a "T" or "L" shape, but the possibility of providing other forms (e.g. a "V" shape) is not excluded.

Preferably, the width of the second length portion is smaller than the width of the first length portion.

Preferably, the connection unit comprises a flexible sleeve in which the connection line is at least partially accommodated.

Preferably, the sleeve is movable relative to the connection line, allowing relative sliding movement, such as translational and/or rotational movement, between the sleeve and the connection line.

Advantageously, the sleeve protects the connection line and at the same time ensures a relative movement between the sleeve and the connection line.

Thus, whenever the present connection unit is combined with the vamp or tongue of the luminous shoe, the sleeve protects the connection line from being glued to possible glue marks that may remain after certain processing steps of the luminous shoe, and thus the sleeve protects the connection line from being tangled or torn, thereby preventing the risk of the connection line being damaged.

Still whenever the present connection unit is combined with the tongue of a luminous shoe, it should be said that the presence of the sleeve advantageously prevents the need to provide an accessory in the form of a strip for housing the connection line, thus allowing to save material when implementing the luminous shoe according to the invention and simplifying some assembly operations of the luminous shoe.

Advantageously, by avoiding the need for said strap/belt-like accessory to provide a tongue as described above, the presence of the sleeve also prevents the formation of a "bridge" for containing the connecting line within the luminous shoe, which is easily broken by the wearer when the wearer inserts the foot into the luminous shoe, thereby damaging the connecting line.

Preferably, the connection unit comprises a wing part coupled with the main body, wherein the wing part is more preferably arranged opposite to the connection port.

Preferably, the thickness of the wing is smaller relative to the thickness of the body.

Advantageously, the wing portions allow to fix the connection unit particularly stably on the vamp or tongue whenever the present connection unit is combined with the vamp or tongue of a luminous shoe, thereby increasing its contact surface, without however making the extension of the portion of increased thickness due to the presence of the connection unit greater.

In addition, the wing portions may be made of a pierceable material to facilitate sewing thereof to the upper or tongue.

Preferably, the connection unit comprises a control button, for example adapted to operate/act on the electronic lighting system to turn on and off the associated lighting display.

Preferably, the control button is arranged on the body and more preferably not aligned with the direction of extension of the connection line.

Preferably, the control button is arranged on a first side and the connection port is arranged on a second side opposite to the first side with respect to/relative to a plane extending substantially along the extension direction of the connection line at the junction point.

In fact, with respect to the second length portion of the body, the control button and the connection port are preferably arranged on the first length portion on opposite sides.

Preferably, said connection port, which according to the invention may be a so-called male port or a so-called female port, is a female connection port, and more preferably a USB port or the like.

According to a second aspect of the invention, the problem is solved by a shoe structure for a luminous shoe comprising an upper and a connecting unit of the type described in combination with said upper.

Preferably, the shoe structure comprises a tongue, wherein the tongue is made in one piece with the upper or the tongue is constrained to the upper, for example by stitching or gluing, wherein the body is joined with the tongue.

Preferably, the tongue comprises a slit extending substantially vertically, i.e. in a longitudinal direction, on the tongue, wherein the connection port emerges from/faces away from the slit.

Preferably, the cut-out extends outwardly on the tongue.

Preferably, on the tongue, the connection unit is oriented such that the connection port is arranged towards the foot outside of the shoe structure and possibly the control button is arranged towards the foot inside of the shoe structure.

Preferably, the control button is arranged on the side facing the inside of the foot of the shoe structure with respect to a central axis extending longitudinally on the tongue.

Advantageously, the construction and arrangement of the connection unit allows the control button to be moved whenever it is moved away from the closure area of the illuminated shoe, for example away from a shoelace or closure strap that may be provided with the illuminated shoe, so that accidental depression of the control button and thus accidental pressing of the control button against the shoelace or closure strap is prevented whenever the tongue should lower itself during wearing of the illuminated shoe.

Furthermore, the configuration and arrangement of the connection unit advantageously reduces the likelihood of the control button being accidentally depressed and thus pressed by the upper whenever the tongue is moved towards the outside of the foot when the illuminated shoe is worn.

According to a further aspect of the invention, the problem is solved by a luminous shoe comprising a sole, a battery, a luminous display, and a shoe structure of the above-mentioned type in combination with said sole.

Drawings

Other features and advantages of the invention will be better highlighted by considering the following detailed description of some preferred but not exclusive embodiments, which are merely illustrative and not limiting, with the aid of the accompanying drawings, in which:

FIG. 1 is a schematic and partially transparent perspective view from above of a preferred embodiment of a shoe structure for a right-foot luminous shoe according to the invention, comprising an upper, a tongue made in one piece with/integral with the upper, and a connection unit associated with the tongue;

FIG. 2 is a schematic and partially transparent view of a detail of the shoe structure of FIG. 1;

fig. 3 is a schematic and partially transparent perspective view from above of a luminous shoe according to the invention comprising a sole and the shoe structure of fig. 1.

Detailed Description

Referring to fig. 1 and 2,1 generally shows a shoe structure for a luminous shoe according to the present invention.

The shoe structure 1 mainly comprises a vamp 2, a tongue 3, either integrated with the vamp 2 or made in one piece with the vamp 2, and a connection unit 4 intended to be connected on one side to the battery and/or control unit of the electronic lighting system of the lighting shoe, and on the other side to external electronic equipment as required.

As shown in the example of the figures above, the connection unit 4 is associated with the tongue 3, but according to the invention the possibility of providing the above-mentioned connection unit associated with the upper in a different portion from the tongue of the luminous shoe is not excluded.

In detail, the connection unit 4 mainly includes a main body 5 and a connection wire 6 extending from the main body 5 to achieve connection with the control unit and/or the battery, which are not shown in the example of the drawings.

In this connection, the connection lines 6 may be directly constrained to the control unit and/or to the battery at the end remote from the body 5, or may be constrained to an electrical connector not shown in the example of the figures, and therefore, in the example of the figures described above, the connection lines 6 are only limitedly shown at their portions close to the body 5.

In particular, the body 5 is provided with connection ports 7 and bonding points 8 for contacting the connection lines 6 with the electrical circuit of the connection unit 4, the electrical circuit of the connection unit 4 being arranged in the body 5 in a known manner.

As shown in the examples of the figures described above, the connection port 7 is a so-called female/female, in particular female USB port, and according to the invention the possibility of providing different types of female connection ports or providing so-called male USB connection ports etc. is not excluded.

As shown in the example of the figures described above, the number of bond points 8 and connecting lines 6 is two, but it will be appreciated that they may have different numbers, for example three or more, according to the invention.

According to the invention, the connection port 7 has an access direction/approach direction/access direction indicated by an arrow a and the connection line 6 has an extension direction indicated by an arrow E at the junction point 8, wherein the access direction a and the extension direction E are neither aligned nor parallel to each other.

In fact, according to the example of the figures described above, the direction of access a, which is clear/single, for the connection port 7 and the direction of extension E, which is also clear/single, when the connection line 6 is fixed on the junction point 8, lie on the same plane or on planes substantially parallel to each other, forming an angle different from 180 °, and preferably the direction of access a and the junction point 8 lie on the same plane or on planes substantially parallel to each other.

Still according to the example of the above figures, it should be mentioned that the access direction a, the extension direction E and the junction point 8 preferably lie on the same plane or planes parallel to each other, which planes or planes parallel to each other are parallel to the body 5 of the connection unit 4.

According to the example of the above figures, therefore, according to a preferred embodiment of the invention, the access direction a and the extension direction E form an angle equal to about 90 °, but the possibility of providing an angle different from the value of the mentioned angle is not excluded.

Still according to the invention and according to the example of the above figures, the body 5 comprises a first length portion 9 and a second length portion 10, the connection port 7 being arranged at the first length portion 9, the junction point 8 being arranged at the second length portion 10, wherein the second length portion 10 extends from the first length portion 9.

According to the above and as shown in the examples of the preceding figures, the access direction a, the extension direction E and the junction point 8 thus preferably lie on the same plane or planes parallel to each other, which are parallel to the first length portion 9 and/or the second length portion 10 of the body 5.

According to the above, the first length portion 9 and the second length portion 10 form an angle with each other different from 180 ° and preferably equal to about 90 °, thus giving the body 5 a "T" shape, but it is not excluded that said body has a different configuration, for example in an "L" shape or in a "V" shape.

Furthermore, according to the invention, the width of the second length portion 10 is smaller than the width of the first length portion 9.

According to the preferred embodiment shown in the above-mentioned figures, the present connection unit further comprises a control button 11 acting on said electronic lighting system for switching on and off an associated lighting display, not shown in the figures.

The control button 11 is advantageously arranged on the body 5 and is preferably not aligned with the direction of extension E of the connection line 6 and with the access direction a of the connection port 7, so that the control button 11 is preferably arranged on a first length portion 9 of the body 5, whereas with respect to a plane extending substantially along the direction of extension E of the connection line 6 at the junction point 8, the control button 11 is arranged on a first side and the connection port 7 is arranged on a second side opposite to the first side.

In fact, preferably and as shown in the example of the above figures, with respect to the second length portion 10 of the body 5, the control button 11 and the connection port 7 are arranged on opposite sides of the first length portion 9.

In addition, as far as the connection unit 4 is concerned, it should be said that it preferably comprises a flexible sleeve 12, in which flexible sleeve 12 the connection line 6 is at least partially accommodated such that the connection line can move therein.

In particular, a relative sliding, for example a rotational and/or translational movement, is allowed between the sleeve 12 and the connection line 6.

According to the invention and as shown in the examples of the preceding figures, the connection unit 4 further comprises a wing 13 in combination with the body 5, which wing 13 is preferably arranged opposite the connection port 7, i.e. the connection port 7 and the wing 13 are arranged at opposite ends of the body 5.

Advantageously, the thickness of the wing 13 is smaller than the thickness of the body 5 of the present connection unit.

In connection with the coupling of the connection unit 4 with the tongue 3, it should be mentioned that the shoe structure according to the invention, which is an example of the above-mentioned figures, is provided with a cutout 14 on the tongue 3, which cutout 14 extends outwardly and essentially in the longitudinal direction (vertically), from which cutout the connection port 7 emerges for being accessible/accessible by the user.

In detail, on the tongue 3, the connection unit 4 is oriented such that the control button 11 is arranged towards the foot inside of the shoe structure 1 and the connection port 7 is arranged towards the foot outside of the shoe structure 1.

Furthermore, as shown in the example of the figures, the control button 11 is arranged on the side of the shoe structure 1 facing the inside of the foot with respect to a central axis extending longitudinally on the tongue 3 and denoted by X-X.

The shoe structure 1 according to the example of the preceding figures comprises a closure strip 15 associated with the upper 2, which is intended to be associated with a sole 16 when implementing a luminous shoe according to the invention, and which is shown in the example of fig. 3, generally indicated with 17.

The luminous shoe 17 also comprises a battery and a luminous display, of known type, and therefore not shown in the figures.

As shown in the example of fig. 3, the connection port 7 of the connection unit 4 is easily accessible to the user of the luminous shoe, whereas the connection line 6 advantageously extends from the upper portion towards the lower portion of the tongue 3.

The access direction a for accessing the connection port 7 and the extension direction E of the connection line 6 at the junction point 8 are also shown in the example of fig. 3.

The advantages of the invention that have been made clear in the description above can be summarized as follows: a connection unit is provided which is preferably but not exclusively used for luminous shoes, which is particularly versatile and has a reduced overall size, which allows the manufacture of luminous shoes that are particularly comfortable for the wearer without imposing particular restrictions on the implementation of aesthetic variants of luminous shoes, and which allows the manufacture of luminous shoes through simplified processing steps.

To meet the contingent and specific requirements, a person skilled in the art can make numerous variants and modifications to the embodiments shown and described of the invention, provided that all such variants and modifications are included within the scope of protection of the invention as defined by the following claims.

Claims

1. Shoe construction (1) for a luminous shoe, which shoe construction (1) comprises a shoe upper (2) and a connection unit (4) associated with the shoe upper (2), wherein the connection unit comprises a main body (5) and a connection line (6), the connection line (6) extending from the main body for connecting the connection unit to a battery and/or a control unit of an electronic luminous system, wherein the main body (5) is provided with a connection port (7) and a junction point (8) for contact of the connection line at its end in the vicinity of the connection port (7), wherein the main body (5) comprises a first length portion (9) and a second length portion (10), the connection port (7) being arranged at the first length portion, wherein the junction point (8) is arranged at the second length portion, wherein the connection port (7) has an access direction (a), the connection line (6) has a junction point (8) at which the access direction (E), wherein the directions (a) and the access direction (E) do not lie parallel to each other, wherein the directions (a) of extension and (E) do not lie parallel to each other Said extension direction (E) and said junction (8) lie in the same plane or in planes parallel to each other, wherein said planes are parallel to said body,

the shoe structure comprising a tongue (3) made in one piece with the vamp (2) or constrained to the vamp (2), wherein the body (5) of the connection unit (4) is associated with the tongue (3), the tongue (3) comprising a slit (14) extending outwardly and substantially in a longitudinal direction on the tongue (3), wherein the connection port (7) emerges from the slit (14),

the connection unit comprises a control button (11) acting on the electronic lighting system,

the connection unit (4) is oriented on the tongue (3) such that the connection port (7) is arranged towards the foot outside of the shoe structure (1) and such that the control button (11) is arranged towards the foot inside of the shoe structure (1).

2. A shoe construction according to claim 1, wherein the first length portion (9) forms an angle with the second length portion (10) which is different from 180 °.

3. Shoe construction according to claim 1 or 2, wherein the connection unit (4) comprises a flexible sleeve (12) in which the connection line (6) is at least partly accommodated.

4. A shoe construction according to claim 1 or 2, wherein the connection unit (4) comprises wings (13) associated with the body (5).

5. A shoe construction according to claim 1 or 2, wherein the control button (11) is arranged on the body (5).

6. A shoe construction according to claim 1, wherein the control button (11) is arranged on the side facing the inside of the foot of the shoe construction (1) with respect to a central axis (X-X) extending longitudinally on the tongue (3).

7. Shoe construction according to claim 1, wherein the access direction (a) and the extension direction (E) form an angle of about 90 ° with each other.

8. A shoe construction according to claim 2, wherein the first length portion (9) forms an angle of about 90 ° with the second length portion (10) such that the body (5) is substantially T-shaped or L-shaped.

9. A shoe construction according to claim 3, wherein the sleeve (12) is movable relative to the connection line (6).

10. A shoe construction according to claim 3, wherein the sleeve (12) is translatable and/or rotationally movable relative to the connection line (6).

11. A shoe construction according to claim 4, wherein the wing (13) is arranged opposite the connection port (7).

12. A shoe construction according to claim 4, wherein the thickness of the wing (13) is smaller than the thickness of the body (5).

13. Shoe construction according to claim 5, wherein the control button is not aligned with the direction of extension (E) of the connecting line (6).

14. A connection unit (4) for a luminous shoe, the luminous shoe comprising a tongue, which connection unit comprises a body (5) and a connection line (6) extending from the body, wherein the body (5) is provided with a connection port (7) and a coupling point (8) for contact of the connection line (6) at its end in the vicinity of the connection port (7), wherein the body (5) comprises a first length portion (9) at which the connection port (7) is arranged and a second length portion (10) at which the coupling point (8) extends from the first length portion, wherein the connection port (7) has an access direction (a) and the connection line (6) has an extension direction (E) at the coupling point (8), wherein the access direction (a) and the extension direction (E) are neither aligned nor parallel to each other, wherein the access direction (a) and the extension direction (E) form a plane (180 °) which are different from each other, wherein the access direction (a) and the extension direction (E) are parallel to each other, wherein the connection point (7) has an access direction (E) and the extension direction (E) are parallel to each other,

the body of the connection unit being associated with the tongue, the tongue comprising an outwardly extending slit (14), wherein the connection port (7) emerges from the slit (14),

the connection unit (4) is oriented on the tongue (3) such that the connection port (7) is arranged towards the foot outside of the shoe and such that the control button (11) is arranged towards the foot inside of the shoe.

15. The connection unit of claim 14, wherein the first length portion and the second length portion form an angle with each other that is different than 180 °.

16. The connection unit according to claim 14 or 15, wherein the width of the second length portion (10) is smaller than the width of the first length portion (9).

17. The connection unit according to claim 14 or 15, wherein the control button is arranged on the main body (5).

18. A connection unit according to claim 17, wherein, with respect to a plane extending substantially along the direction of extension (E), the control button (11) is arranged on a first side and the connection port (7) is arranged on a second side opposite to the first side.

19. A connection unit according to claim 14 or 15, comprising a wing (13) associated with the body (5).

20. The connection unit according to claim 14, wherein the access direction (a) and the extension direction (E) form an angle of about 90 ° with each other.

21. The connection unit of claim 15, wherein the first length portion and the second length portion form an angle of about 90 ° with each other.

22. The connection unit according to claim 15, wherein the body (5) is T-shaped or L-shaped.

23. The connection unit according to claim 17, wherein the control button (11) is not aligned with the extension direction (E).

24. The connection unit according to claim 19, wherein the wing (13) is arranged opposite the connection port (7).

25. A connection unit according to claim 19, wherein the thickness of the wing (13) is smaller than the thickness of the body (5).