DE7802213U1 - Shoe with insole - Google Patents

Description

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DR. INQ. HANS LiCHTi · DiPL.-iNq. HEiNER LiCh ¹ Ti

PATENT LAWYERS

D-75OO KARLSRUH E 41 (GROTZI NGEN) DURLACH ER STR. 3t (HIGH-RISE)

TELEPHONE (0721) 48511

Gebhard Dehm 4323/78 f

Richard-Wagner-Str. 25th

7519 Walzbachtal 2

SHOE WITH INSOLE

The invention relates to a shoe with an elastic insole, one airtight outer skin and one approaching each other Has cavity extending over its length and in the heel area with air inlet openings and in the remaining area with air outlet openings is provided.

Such a shoe with an insole is known (DE-Gbm 73 10 991). This insole is preferably used when wearing shoes made of synthetic, lacquer or otherwise air-impermeable coated leather used because in such shoes compared to leather shoes, the foot transpiration is larger and the sweat cannot be absorbed by the leather. For this purpose, the insole consists of a

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air-permeable, elastic material which is surrounded by an air-impermeable film which forms the outer skin on their underside in the area of the heel entry and on their Top side in the area of the toes has opening outlet openings. Thus, the rolling movement of the foot can be used to that located in the air-permeable material Air from the cavity is forced out of the outlet openings with each step in the manner of a pumping movement by When the heel is put on, the air inlet opening is pressed firmly onto the insole of the shoe below. Through this At the same time, the volume of the cavity is reduced so that the air escapes from the outlet openings in the area of the toes. When the foot rolls up to the ball of the foot or the toes, the heel area of the known insole is relieved, so that due to the resulting negative pressure, air can flow in again through the inlet opening. Thus becomes the rear Part of the shoe air is taken and placed in the front part of the Toes are transported with every step and the foot sweat is absorbed there and during the return flow. This air is sweeping over the entire front part of the foot and escapes in the area of the tongue of the shoe, so that a certain amount of Air circulation takes place, in which the foot is constantly circulated by air.

The known insole, however, has the disadvantage that when the foot rolls over the ball of the foot or the toes due to this the resulting negative pressure in the area of the heel, air not only in the area of the shoe upper flows into the entry yoke, but also some of the air located in the front area of the insole is sucked in. This return flow is the

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- Targeted pump effect with the known insole only un-

. fully achieved. This has the consequence that the air interior

but especially the inlet openings stick or become encrusted can clog.

I. The invention is based on the object of a shoe mi / aner

j to provide insole of the type mentioned at the outset, in which a

I Air does not flow back.

According to the invention, this object is achieved by at least one the insole arranged, in the direction of the outlet openings J opening check valve. The check valves can be used as an

jj the air inlet and / or outlet openings arranged sniffer

ι valves or flap valves or the like. Be formed instead

j the cavity can also have two chambers, which have a rear

ί check valve are connected to each other. In addition to this you can but also still have the flap valves. The air inlets are conveniently located on the upper side of the insole. ; arranges and ends in only one of the two chambers.

When the heel is put on, these inlets are taken from the Heel closed and the air of the chamber into which the inlet opening; Openings open, is via the check valve in the other chamber pushed. When the foot rolls over the ball of the foot, the air in this other chamber can then close due to the

I send non-return valve does not flow back into the first chamber,

■; but escapes voluntarily through the outlet openings. So far

there is no undesired backflow of part of the air that is present in the insoles according to the state of the art. This effect can either only be achieved through flap valves arranged at the openings, or through additional to the check · = valve arranged at the openings flap valves can be achieved.

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Therefore, according to the invention, the volume of air sucked in is pressed through the air outlet openings. As a result, neither the entry nor can the outlet openings become stuck with sweat and become encrusted or even clogged as a result. Furthermore, the foot gets better surrounded by air.

Although shoe insoles with "chambers" are known (DE-GBM 74 17 875), these "chambers" are not closed, but rather, it is designed like a suction cup and arranged on the underside of the known insole. With the top covered with an absorbent Textile material is provided, the "" chambers are each provided with an opening tied together. As the foot rolls, the volume becomes the suction cup-like "Chambers" reduced what the air is forced through the opening on the upper side of the insole. With this well-known insole a certain upheaval in the vertical direction is achieved, but the displaced air should either be released during the relief of the insole through the openings, or over the side edge for the most part again flow back. Furthermore, the front part of the insole, which is badly ventilated anyway, is not deliberately flushed with air.

The check valve can be used in a manner known per se as a needle, flap, Flutter, ball or diaphragm valve can be designed. It has also proven to be useful if several inlet openings, preferably three and the outlet openings are arranged in the area of the bale.

The chambers are preferably made of an air-permeable material, For example foam, felt, fleece, textile fabric or the like. Filled.

The production of the invention is particularly simple Insole, if this consists of a lower part and an upper part connected to this with the chambers, which is embossed, vulcanized,

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injection-molded or cast, with knobs directed towards the lower part and / or longitudinal ribs and / or a convex curvature in the area the heel is provided. With the arching it is achieved on the one hand that the inlet openings are well sealed when the heel is put on are, on the other hand, a pronounced pumping effect with a large volume of air sucked in and transported on. Furthermore, in simply the check valve between the two chambers on the upper part and attached to this the lower part, for example welded!:, glued or vulcanized.

If at least the upper part has an outer layer, for example made of textile, fleece, felt or the like, there is also good distribution of the air at the outlet openings.

According to the invention, the insert can also be firmly attached to the shoe, for example its insole be connected.

Further features, details and advantages of the invention emerge from the following description of several in the drawing illustrated embodiment. Show it:

FIG. 1 shows a first embodiment of an insole according to the invention in a schematic longitudinal section;

FIG. 2 shows a second embodiment of the insole, in a schematic longitudinal section;

FIG. 3 the insoles according to FIGS. 1 and 2

in a schematic plan view without an outer layer;

FIG. 4 shows a shoe with the insole according to FIG. 1.

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The insole, denoted overall by 1 in FIG. 1, consists of an embossed upper part 2 and a lower part 3, which form the air-impermeable outer skin of the insole ^1. The upper part 2 is also provided with knobs or longitudinal ribs 4 directed towards the lower part 3 and a spherical arch 5 in the heel area and an outer layer 6 made of textile, fleece or Fi Iz.

The cavity of the insole 1 is divided into two chambers 7a and 7b, which are shown schematically in the heel area arranged check valve 8 are connected to one another. In the area of the bulge 5 there are inlet openings 9a which open into the chamber 7b. In the area of - in the drawing Not shown - bale are arranged outlet openings 9b which are connected to the chamber 7a. Furthermore, the air inlet openings 9§imit provided with flaps 10a also acting as check valves and arranged inside the chamber 7b. At the air outlet openings 9b there are also flaps 1Ob, however not arranged in the inner de / chamber 7a, but on the outside between the upper part 2 and the outer layer ^.

The second, shown in FIG. 2 and denoted as a whole by 1 ' The embodiment of the insole corresponds essentially to the embodiment according to FIG. 1. Corresponding parts are with the same Reference numerals and a dash. Only me instead of the knobs or longitudinal ribs / are the two chambers 7a and 7b of the lower part 3 'connected to the upper part 2', for example by welding, gluing or vulcanizing, with a air-permeable material 11 ', for example foam, fleece or textile fabric filled. Likewise, that is indicated schematically with 8 ' Check valve between the two chambers 7 a 'and 7 b 'by gluing or the like. Arranged.

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ί The embodiment according to Figures 1 and 2 are shown in Figure 3

: shown in plan view.

In Figure 4, a shoe 12 is shown schematically in longitudinal section, the sole 13 of which is attached to the insole 14. Also firmly with

; of the insole 14 is the lower part 3 of the insole 1, which is shown in FIG

is shown in more detail. The air circulation inside the shoe is ; indicated schematically with arrows. When putting the - in the

j drawing not shown - heel, are the inlets

9a covered and the volume of the chamber 7b reduced, so that the air located therein via the check valve 8 into the chamber 7 a is pushed. Because of this, the same volume of air flows out of the outlet openings 9b. This exiting air flows according to the Directional arrows 15 on the toes and according to the directional arrows 16 over the instep or rows of the foot and escapes in the area of the Tongue of the weft according to direction arrow 17.

When the foot rolls over the ball of the foot or the toes, the inlet openings 9a come free from the heel and the chamber? * B expands to their original volume. Because of the resulting Under pressure, air is sucked in according to the direction arrows 18 and Fresh air flows into this area of the according to the directional arrow 19 tes.

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Claims (18)

• ft 1 * ft - 8 - 4323/78 PROTECTION CLAIMS 1. Shoe with an elastic insole that is impermeable to air Outer skin urti has a cavity extending approximately over its length and in the heel area is provided with air inlet openings and in the remaining area with air outlet openings at least one arranged on the insole and opening in the direction of the air outlet openings (9b 9b ') Check valve (8.8 '). 2. Shoe according to claim 1, characterized in that the check valves (.8,8 ") are designed as flap valves (10a, 10b) arranged on the air inlet and outlet openings (9a, 9a 'or 9b, 9b'). 3. Shoe according to claim 1 or 2, characterized in that the flap valves (1O a, 1Ob) at the inlet openings (9a, 9a ') are arranged on the inside and / or on the outside of the outlet openings (9b, 9b '). 4. Shoe according to one of claims 1 to 3, characterized in that that the cavity has two chambers (7a, 7b or 7a '7b'), which via the check valve (8,8 ') are connected to each other. 7802213 05/03/78 ι. ι ι I> 4323/78 5. Shoe according to one of claims 1 to 4, characterized in that that the air inlet openings (9a, 9a ') are arranged on the upper side of the insole and in only one of the two chambers (7b, 7b ') open. 6. Shoe according to one of claims 1 to 5, characterized in that that the check valve (8, 8 ') as a needle, flap, Flutter, ball, cone or diaphragm valve is formed. 7. Shoe according to one of claims 1 to 6, characterized in that that several, preferably / inlet openings (9a, 9a ") are provided. 8. Shoe with the top of the insole resting on the foot Outlet openings according to one of Claims 1 to 7 arranged in the front area thereof, characterized in that the outlet openings (9b, 9b ') in the area of the bale are arranged. 9. Shoe according to one of claims 1 to 8, characterized in that the chambers (7a, 7b and 7a ¹ , 7b ') are filled with an air-permeable material (11). 10. Shoe according to claim 9, characterized in that the air-permeable material is foam, FiIz ₁ VIies or textile fabric. 11. Shoe according to one of claims 1 to 10, characterized in that the insole (1, 1 ') consists of a lower part (3, 3 ") and an upper part connected to this (2, 2') with the chambers (7a, 7b or 7a ¹ , 7b ¹ ), between which the check valve (8, 8 ') is inserted. Sg / sü - 10 - 7802213 05/03/78 tilt 4 B · · * « h, 1Qr '' «. · .I. : · .. · 4323/78 12. Shoe according to claim 11, characterized in that the check valve (8, 8 ") with the upper (2, 2 ¹ ) and this with the lower part (3, 3 ') is welded, glued or vulcanized. 13. Shoe according to one of claims 1 to 10, characterized in that the inlay sole (1, 1 ') is designed as with downwardly open chambers (7a, 7a ¹ or 7b, 7b ¹ ) and with the underside along the edge of the insole (1, 1 ') and between the chambers (7a, 7b and 7a ¹ , 7b ¹ ) arranged sealing lips is provided. 14. Shoe according to one of claims 11 to 13, characterized in that the upper part (2, 2 ¹ ) is embossed, vulcanized, ge £ injected or poured, with on the lower part (3, 3 ") court I ended knobs or longitudinal ribs (4) and / or with a convex ρ Arch (5, 5 ¹ ) is provided in the area of the heel. 15. Shoe according to claim 14, characterized in that the inlet ^{openings (9a, 9a 1} ) are arranged in the region of the convex curvature (5, 5 '). 16. Shoe according to one of claims 1 to 15, characterized in that that at least the upper part (2, 2 ") has an outer layer (6, 6"). | 17. Shoe according to claim 16, characterized in that | the outer layer (6, 6 ¹⁾ loading of textile, felt or non-woven} $ stands. t 18. Shoe according to one of claims 1 to 17, characterized in that the insert (1, 1 ¹ ) is firmly connected to the shoe (12). 7802213 05/03/78