EP1500341B1 - Shoe with ventilating structure - Google Patents

Description

The invention relates to a shoe as described in the preamble of claim 1.

From the document US 5,809,665 A is a shoe comprising a sole comprising an outsole and an insole connected thereto and a sole connected to the shoe upper, which has a ventilation device for a shoe interior. A Fußbetteinlage is provided in a heel area with an open to the insole pumping chamber via at least one flow channel with a ventilation formed in a forefoot area ventilation zone. An elasticity of the Fußbetteinlage effected by the loading and unloading during a walking movement, a contraction and extraction of the pumping chamber whereby an air circulation for ventilation of a foot in the shoe interior is generated.

The document FR 2 521 407 A discloses a shoe having an outsole and an elastic insole forming thereon a foot contact footprint having flow channels disposed on the underside thereof and ventilation channels leading towards the shoe interior and a shoe upper joined to the sole. In the archillery and heel area, an attachment shell which forms an air inflow channel for a fresh air supply and which is raised in the direction of an entry opening of the shoe upper is arranged on the shoe upper and forms an inflow opening.

From the document US 5,010,661 A is a shoe consisting of an outsole and a shoe upper and arranged in the shoe interior, a footprint for the foot forming elastic footrest known. In a heel region, this has a pumping chamber formed on a lower side, which is flow-connected via flow channels with outlet openings in a forefoot region on the upper side of the footrest. An air supply to the pumping chamber takes place from the shoe interior via an inflow opening, which is provided in a heel-side Stimendbereich the footrest and which is connected via a flow channel with the pumping chamber.

Another document EP 0 350 103 A2 discloses a shoe consisting of an outer shoe and an inner shoe, wherein the inner shoe forms an inner shell comprising the foot which performs a relative movement under weight load, as a result of an elastic deformability and thus a pumping movement is effected in a fresh air supplied space, the in the Outer shell arranged ventilation elements is fluidly connected to the ambient atmosphere. The ventilation elements are formed by means of spring-loaded flow restrictors as inflow or outflow elements whereby a ventilation flow for a foot is achieved in the shoe interior.

The document WO 01/65958 A1 discloses a shoe having a sole and an upper shoe connected thereto and a resilient footrest disposed in the inner shoe spaced apart from the sole in the heel region, thereby providing a pumping chamber which is flow-connected to the shoe interior via influxes in the footrest. An air supply to the pumping chamber forms a flow channel through a double-walled upper shoe in the heel area.

From the EP 0 594 518 A1 is a footwear article, in particular work and / or safety shoe an Luftzirkulationsvornchtung known, after which it is integrated in an outsole and essentially by a hollow, closed body which is at least partially deformable and is connected to an air inlet, is formed, and a flow channel leads into the interior of the article of footwear, which is formed by a Luftauslassschlauch variable length. The device is fixed to an insole of the article by means of a quick attachment device. The air inlet nozzle is arranged in a shoulder of the outsole with an opening in the footprint of the outsole, whereby In the event of contamination, disturbances in the air supply can not be ruled out.

The object of the invention is to provide a shoe with a ventilation device that ensures a trouble-free air supply and in the penetration of dirt, moisture and bacteria and viruses in a shoe interior is effectively prevented.

This object of the invention is achieved by the reproduced in the characterizing part of claim 1 features. The surprising advantage of this is that an effective ventilation of the shoe interior is achieved with a wear comfort of the shoe significantly increasing Fußbetteinlage and additional Luftverteileinrichtungen are not required.

However, an embodiment according to claim 2 is also advantageous because it achieves a uniform areal distribution of an air flow in the sensitive forefoot area.

But there are also embodiments according to claims 3 and 4 of advantage, whereby a matched to any conditions of use of the shoe material choice is given.

It is also possible an embodiment according to claim 5, whereby a, the ventilation zone comprehensive, opposite the insole sealing conditioning of the Fußbetteinlage is achieved and this leads to a concentration of air flow in the forefoot and simplification of the manufacturing process for producing the mold layer is achieved with the ventilation zone ,

Another advantage is an embodiment according to claim 6, because by using leather, cork or fabric as the immediate contact zone to the foot in conjunction with the foot ventilation the Fußbettklima and thus the wearing comfort of the shoe is improved.

The advantageous development, as described in claim 7, ensured by the ever-changing support pressure in the heel area during walking a permanent air supply and ventilation.

According to the advantageous development described in claim 8 direct contact of the inflow channel with the surrounding dirt shoe is largely prevented and does not affect the ventilation.

The advantageous embodiments characterized in claims 9 and 10 ensure low flow resistance, whereby the air circulation is improved.

Also possible is an advantageous embodiment, as described in claim 11, whereby additional elements, such as conduits, etc., can be saved and manufacturing technology and cost advantages are achieved.

According to the advantageous embodiment described in claim 12, a cross-sectional change of the inflow is effectively prevented even at high load of the paragraph.

Finally, an embodiment according to claim 13 is advantageous because effectively the penetration of contaminants, such as moisture, dirt, oil, grease, but also of bacteria and viruses, is effectively prevented.

For a better understanding of the invention, this will be explained in more detail with reference to the embodiment shown in the figure.

Fig. 1

einen erfindungsgemäßen Schuh mit einer Belüftungseinrichtung, in Ansicht, geschnitten.

It shows:

Fig. 1

a shoe according to the invention with a ventilation device, in view, cut.

By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and are to be transferred to the new situation mutatis mutandis when a change in position. Furthermore, individual features or combinations of features from the different exemplary embodiments shown and described can also represent independent, inventive or inventive solutions.

In the Fig. 1 is a shoe 1 with a formed of an outsole 2 and an insole 3 sole 4 and connected to the sole 4 shoe upper 5, which defines a shoe interior 6, shown. On the insole 3 is an adapted to the anatomical design of a soles foot bed insert 7 superimposed, with a connection, for example by gluing, is often omitted to easily replace the Fußbetteinlage 7 in case of damage or wear can.

The Fußbetteinlage 7 is in a preferred embodiment, as shown two-ply, formed by a mold layer 8 and a cover layer 9. The mold layer 8 preferably consists of a plastic injection molded part, in particular of polyurethane, with a closed-cell surface design. On the shaping layer 8, on an upper side 10 facing the shoe interior 6, the cover layer 9, which is preferably formed from a leather, is arranged and connected thereto via an adhesive layer 11.

Of course, a single-ply molded footbed insert 7 e.g. made of plastic, cork, pressed leather granules etc. for the shoe 1 according to the invention as well as the combination of such materials with the cover layer. 9

The outsole 2 is also made in a preferred embodiment as a plastic injection molded part with appropriate, the intended use of the shoe adapted profiling on a footprint 12 and shaping to form a heel 13. Furthermore, the outsole 2 is facing the elastic sole 3 to achieve elastic compliance, provided with chambers 14 divided by webs 14, which likewise form an air cushion in the outsole 2.

The attachment of sole 4 to shoe upper 5 may be accomplished by the various prior art known in the shoe manufacturing art, e.g. by sewing, gluing, forming etc. done.

The laid on the insole 3 Fußbetteinlage 7 now has in a heel region 16 of the insole 3 facing open air chamber 17, which arranged in the insole 3 holes 18 with one or more of the chambers 15 for an air flow, according to - arrows 19 - fluidly connected. In paragraph 13, an inflow opening 20 is formed, via which the chamber 15 is fluidly connected to the atmosphere surrounding the shoe 1. This inflow opening 20 is formed by a provided with a bore 21 sleeve member 22 which is disposed between an end face 23 of the outsole 2 and the paragraph 13 and the chamber 15, in an end web 24 of the paragraph 13 immediately adjacent to a bottom of the insole , Thus, the inflow opening 20 is not in the immediate area of the footprint 12, whereby the risk of contamination is greatly reduced.

The mold insert 8 now has an opening 26 in a forefoot region 25, in which a grid or mesh layer 28, in particular of a fiber-reinforced fabric or knitted fabric made of plastic, is arranged to form a ventilation zone 27. In particular, the grid or mesh layer 28 is inserted in the corresponding area in the production of the mold layer 8 in an injection mold and thermally connected in the edge region by the subsequent introduction of the mold layer 8 forming plastic foam.

This defined by the opening 26 ventilation zone 27 with the grid or network layer 28 is now fluidly connected to at least one of the insole 3 facing bottom 29 of the mold layer 8 extending groove-shaped flow channel 30 to the pumping chamber 17, so that the flowed in the pumping chamber 17 air during a compression of the air chamber 17 - as it is achieved when walking by changing support pressure - according to arrow 31 - a foot 32 - forwarded in the region of the ventilation zone 27 via the flow channel 30. A microporous membrane 34 of a fabric, knitted fabric, etc., which covers the bore 21 of the sleeve element 22 in an end region 33 facing the chamber 15, ensures free passage of air into the chamber 15, but thus effectively prevents the penetration of moisture and contaminants.

It is also possible to form the membrane 34 as a so-called. Backflow lock to prevent leakage of air from the chamber 15 against the inflow, whereby an increase in the ventilation of the shoe interior 6 is achieved.

Furthermore, it is possible to form the membrane 34 for preventing penetration of bacteria or viruses from an antimicrobial fabric or knits. In addition, the inflow opening 20 is arranged at a distance 35 to the footprint 12 formed by the shoulder 13, which is slightly smaller than a height 36 of the shoulder 13 and runs through the bore 21 formed flow direction approximately parallel to the footprint 12, which also provides further protection is given before the penetration of the aforementioned contaminants. Incidentally, as already mentioned, the membrane 34 is microporous, whereby liquid impurities due to their molecular size are prevented from entering.

For ventilation of the shoe interior 6 and thus the foot 32 on a sole surface 37 are in the region of the ventilation zone 27 in the cover layer 9 in a predetermined grid openings 38, for example, punched holes, preferably with a diameter between 0.5 mm and 2.0 mm, provided over which from the air chamber 17 and through the flow channel 30 wherein for uniform supply of the ventilation zone 27 with the air - according to arrows 19 - more of the flow channels 30 in the mold layer 8 is provided are.

For the sake of order, it should finally be pointed out that for a better understanding of the construction of the system according to the invention, its components have been shown partially unevenly and / or enlarged and / or reduced in size.

The task underlying the independent inventive solutions can be taken from the description.

REFERENCE NUMBERS

1

shoe

2

outsole

3

insole

4

sole

5

Shoeupper

6

Shoe interior

7

sockliner

8th

form location

9

topsheet

10

top

11

adhesive layer

12

footprint

13

paragraph

14

web

15

chamber

16

heel

17

pumping chamber

18

drilling

19

arrow

20

inflow

21

drilling

22

sleeve member

23

face

24

end web

25

forefoot

26

breakthrough

27

ventilation zone

28

Grid or net layer

29

bottom

30

flow channel

31

arrow

32

the foot

33

end

34

membrane

35

distance

36

height

37

sole surface

38

breakthrough

Claims (13)

1. Shoe (1) with a sole (4) comprising a running sole (2) and an insole (3) joined to it, and a shoe upper (5) joined to the latter, and with a ventilating device for a shoe interior (6), and with a foot-bed insert (7) formed by at least one moulded layer (8) in the shoe interior (6) which has a pumping chamber (17) in a heel region (16) open towards the insole (3) and a ventilation zone (27) in a front foot region (25) connected via at least one flow passage (30), and the pumping chamber (17) has a flow connection to the ambient atmosphere around the shoe (1) via an inlet orifice (20), characterised in that the inlet orifice (20) is provided in the form of a tubular element (22) incorporating a bore (21) disposed in a terminal web (24) of a heel (13) immediately adjacent to a bottom face of the insole (3), and the bore (21) is overlapped by an air-permeable, micro-porous membrane (34) in an end region (33) of the tubular element (22) facing the pumping chamber (17).
2. Shoe as claimed in claim 1, characterised in that the foot-bed insert (7) is multilayered and preferably comprises the moulded layer (8) and a top layer (9) joined to it, and the ventilation zone (27) in the moulded layer (8) is provided in the form of a lattice or netting layer (28) of fibre-reinforced fabric or knitted fabric of plastic in the region of which orifices (38) are provided in the top layer (9) connecting the ventilation zone (27) to the shoe interior (6).
3. Shoe as claimed in claim 1 or 2, characterised in that the moulded layer (8) is made from a closed-cell plastic, in particular polyurethane.
4. Shoe as claimed in claim 1 or 2, characterised in that the moulded layer (8) is made from bonded cork, leather or recycled plastic granulate.
5. Shoe as claimed in claim 2, characterised in that the lattice or netting layer (28) is integrated in an orifice (26) of the moulded layer (8) and is integrally moulded in a peripheral region.
6. Shoe as claimed in claim 2, characterised in that the top layer (9) is made from a leather, textile or cork layer.
7. Shoe as claimed in one or more of the preceding claims, characterised in that an open pumping chamber (17) is disposed in a heel region in the moulded layer (8) facing the insole (3).
8. Shoe as claimed in one or more of the preceding claims, characterised in that the inlet orifice (20) forms a passage extending approximately parallel with a standing surface (12).
9. Shoe as claimed in claim 8, characterised in that the passage is disposed in an endface terminal web (24) of the running sole (2) and has a flow connection to at least one open chamber (15) facing the insole (3).
10. Shoe as claimed in claim 9, characterised in that at least one bore (18) is provided in the insole (3) connecting the chamber (15) to the pumping chamber (17).
11. Shoe as claimed in one or more of the preceding claims, characterised in that the flow passage (30) connecting the pumping chamber (17) to the ventilation zone (27) is formed by at least one groove-shaped recess which is moulded in particular into a bottom face (29) of the moulded layer (8) facing the insole (3).
12. Shoe as claimed in one or more of the preceding claims, characterised in that the passage is formed by a bore (21) of a tubular element (22) connecting an end face (23) of the running sole (2) in the heel region to the chamber.
13. Shoe as claimed in one or more of the preceding claims, characterised in that the membrane (34) is provided in the form of an anti-microbial fabric or knitted fabric.

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