EP1068812B1 - Footbed - Google Patents

Abstract

The foot bed (1) comprises an anatomically formed blank (2) with a top layer (13) consisting of a heat-retaining material, especially a woolly material. Fastened to the underside of the top layer is a heat-insulating layer of a closed-pore foam, of maximum 3 mm thickness. An aluminum foil layer is located between the foot-sided surface of the blank and the underside of the top layer. All layers are glued to each other or connected by seams (15).

Description

The invention relates to a footbed with an anatomically shaped blank, which in one Heel area and at least partially formed in a midfoot area and the one Longitudinal arch support, and a top layer, which on a foot-side surface of the Rohlings is arranged and which is formed over an entire foot area.

In such a known footbed the blank forms a flexurally elastic part for support of the heel and midfoot area, which is why the blank only in these foot areas is trained. The upper layer applied to a foot-side surface of the blank is formed in known from the prior art footbeds made of leather. For improvement The wearing properties can be between the upper layer of leather and the blank an intermediate layer of activated carbon filter, latex or cork may be arranged. A well-known Footbed comparable type is described for example in the document US 5,068,983.

From the document US 4,887,368 various devices are known which are heat-insulating act and the storage and distribution of body heat in the area of the skin surface serve. In such a known device may, for example, to an insole that has a skin-facing layer of textile fabric, for example, cotton or wool.

In the document US 4,932,141 is a footbed with a plastic base part in the heel area and a cover layer extending at least partially into the midfoot region. In the known insole a pad is provided in the metatarsal area.

Object of the present invention is to provide a footbed of the type described above to create improved wearing properties.

This object is achieved with a footbed according to the preamble of claim 1, characterized that the upper layer of a warming material, especially a wool-like Material is formed.

The advantage which is achieved with the invention over the prior art consists in that a footbed is provided which allows an anatomical footbed as well to use for colder seasons. The warming upper class generated by a user the footbed feels comfortable and prevents the foot from cooling down at low Outdoor temperatures, especially in winter.

In addition, the warming upper layer can absorb natural foot moisture and release them later when airing.

A development of the invention provides that on an underside of the upper layer a Insulating layer is arranged, whereby the insulation of the foot against cold further improved is.

Advantageously, the insulating layer is formed of a closed-cell foam. closed Pores do not absorb the moisture from the foot. That's why the foam stays on moist shoe climate its insulating property and acts like a cold barrier layer. In contrast, the known from the prior art open-cell foam takes the Moisture from the feet like a sponge and directs the cold of the soil to the foot. In addition, the closed-pore material improves the stiffness of the footbed.

Suitably, the insulating layer has a thickness of at most 3 mm, whereby the total thickness the footbed can be made sufficiently thin, so that an application in the Use of the footbed in the shoe is prevented.

In a further development of the invention it is provided that between the foot-side surface of the Blanks and the bottom of the top layer is an aluminum layer, creating a safe protection against wetness that penetrates from below, from the street into the shoe.

The aluminum layer is advantageously formed from an aluminum foil, which in turn ensures is that the total thickness of the footbed is sufficiently low, so that an application at the use in the shoe is prevented.

The insulating layer and / or the aluminum layer are useful over the entire foot area designed so that over the entire foot surface optimal protection against cold and wet is trained.

A development of the invention provides that the upper layer and the insulating layer or the Upper layer and the aluminum layer or the upper layer and the insulating layer and the aluminum layer are glued together in a layer arrangement. This ensures that that the individual layers when using the footbed in a shoe not against each other can be moved.

Appropriately, seams are formed through the upper layer, whereby the rigidity of the Upper layer is improved. In addition, this can cause abrasion of parts of the material Upper layer can be reduced when using the footbed.

Are the seams through the top layer and the insulation layer or the top layer and the aluminum layer or through the top layer and the insulating layer and the aluminum layer trained, so in these cases, on the one hand, the stiffness of the footbed is improved. On the other hand, the seams provide additional protection against the movement of the individual Layers against each other.

In an advantageous embodiment of the invention is between the blank and the upper layer or the insulating layer or the aluminum layer formed an adhesive bond, whereby the respective layer is connected to the blank in a simple manner. The Use of a solvent-free adhesive also ensures an environmentally friendly Production of the footbed.

To prevent slippage of the footbed in the shoe is on a facing the blank Bottom of the aluminum layer, in an area that is not covered by the blank is, suitably applied an adhesive material.

In one embodiment of the invention, a drop-shaped pad is formed in the metatarsal region, whereby a support of the transverse arch of the foot is made possible.

An advantageous development of the invention provides that the blank in the heel area a Opening, wherein a material thickness of the blank in the direction of a peripheral edge the opening decreases so that an edge region of the opening on the foot-side surface of the blank is funnel-shaped, and wherein in the region of the opening on the foot side Top of the blank, a heel pad is arranged so that the opening by means of the heel pad is covered. With the help of the heel pad, the foot becomes while wearing the footbed in one Shocked shoe. The funnel-shaped design of the edge region of the opening ensures a good fit of the heel pad in the area of the opening, with a slipping of the heel pad additionally can be prevented by the heel pad on the foot-side surface of the blank is glued.

Figur 1

ein Fußbett von unten;

Figur 2

eine Schnittdarstellung des Fußbetts nach Figur 1; und

Figur 3

eine vergrößerte teilweise Schnittdarstellung eines Fußbetts mit einer Oberschicht, einer Dämmschicht und einer Aluminiumschicht.

The invention is explained below with reference to exemplary embodiments and with reference to a drawing. Hereby show:

FIG. 1

a footbed from below;

FIG. 2

a sectional view of the footbed of Figure 1; and

FIG. 3

an enlarged partial sectional view of a footbed with a top layer, an insulating layer and an aluminum layer.

According to FIG. 1, a footbed 1 has a blank 2. The blank 2 is in a heel area 3 and at least partially formed in a midfoot region 4. The blank 2 is preferably formed of a flexurally elastic plastic material, for example polyethylene or cork. With Help a longitudinal arch support 5 is a support of the foot in the longitudinal arch area allows.

In the midfoot region 4, the blank 2 has a pad for supporting a transverse arch of the foot 6 on. The pad 6 is adhered to a foot-side surface of the blank 2 and preferably made of a soft plastic material. The pad 6 may be formed drop-shaped be.

The blank 2 is cup-shaped in the heel region 3 and has an opening 7. On the foot-side surface of the blank 2, a heel pad 8 is arranged in the region of the opening 7.

According to FIG. 2, a thickness of the blank 2 decreases in the direction of a peripheral edge 9 of the opening 8. As a result, an edge region 10 of the opening 7 is funnel-shaped.

The heel pad 8 is arranged in the heel region 3 so that the opening 7 is covered. The heel pad 8 is formed through the opening 7 and stands on the side facing away from the foot Side 11 of the blank 2 over, so that a spring portion 12 is provided. It can also be provided that the heel pad 8 does not protrude on the opposite side 11. To secure against slipping the heel pad 8 may be glued to the blank 2.

On the blank 2, an upper layer 13 is arranged, which extends over the heel region 3, the Metatarsal region 4 and a forefoot region 14 extends. The upper layer 13 is made of a warming Material formed, preferably made of a wool-like material. The upper layer 13 is advantageous from pure wool, such as 100% lamb wool, or felt formed. These Materials absorb the natural moisture of the feet and release them when aired after use of the footbed 1 again. In addition, these materials have the ability to store part of the natural heat of the feet. To the abrasion resistance and the durability of the footbed 1 to improve, may be provided on the upper layer 13, a pad of a mixed fleece be (not shown).

To improve the rigidity of the topsheet 13, seams can be made through the topsheet 15 be formed (see Figure 1).

FIG. 3 shows a detail of the forefoot region 14 of a footbed 1 after another Embodiment in cross section. Here is on the foot-side surface of the blank 2 a Aluminum layer 16 is provided. The aluminum layer 16 provides safe protection against moisture, which penetrates from below into the shoe, and is preferably formed from an aluminum foil.

Above the aluminum layer 16 and below the top layer 13, an insulating layer 17 is provided. The insulating layer 17 has insulating effect with respect to moisture and cold. This is achieved in particular in that the insulating layer 17 is formed from a closed-cell plastic foam, wherein the insulating layer 17 preferably has a thickness of 3 mm. With such a thickness, the insulating property of the insulating layer 17 corresponds to the insulating property of 15 mm linoleum or 12 mm leather or 18 mm wood parquet. The insulating layer 17 thus has a 6-fold efficiency compared to the leather known from the prior art. In addition, the closed pores of the insulating layer 17 do not absorb the moisture in the shoe, so that the insulating property of the insulating layer 17 is maintained even with a moist shoe climate, whereby a cold barrier layer is formed.
Instead of or in addition to the insulating layer 17, which is preferably formed from a closed-cell foam, a layer of an open-cell foam (not shown) may be provided, which serves primarily the padding.

In a preferred embodiment of the invention can be provided that the upper layer 13 is only combined with the insulating layer 17 or only with the aluminum layer 16 (not ) Shown. Regardless of whether two or three layers are combined together Compounds are respectively formed between the layers by gluing or flame lamination. to connect the layers together so that shifting the layers against each other is prevented.

When the insulating layer 17 is disposed between the topsheet 13 and the aluminum layer 16 is, the insulating layer 17 may be slightly thicker than it to fulfill the Dämmfunktion necessary is. During subsequent flame lamination, the insulating layer 17 melts together, that the Dämmfunktion can be met. At the same time, a connection between the Layers formed.

In addition, it can be provided that the seams 15 through the respective layer arrangement are formed through, so that on the one hand the stiffness of the footbed 1 is improved, and on the other hand an additional protection against the shifting of the layers formed against each other is.

To prevent slippage of the footbed, especially in the shoe, has the aluminum layer 16 on a lower, the blank 2 side facing an adhesive material 18, so that the surface on the lower side 18 is dull.

The features disclosed in the foregoing description, figures and claims can be used both individually and in any combination for the realization of the invention be significant in their various embodiments.

LIST OF REFERENCE NUMBERS

1

footbed

2

blank

3

heel

4

midfoot

5

Arch support

6

pelotte

7

opening

8th

Fersenpolster

9

edge

10

border area

11

away from the foot side of the blank 2

12

spring range

13

top layer

14

forefoot

15

seams

16

aluminum layer

17

damp course

18

lower side of the aluminum layer 16

Claims (11)

1. A foot bed (1) with an anatomically shaped blank (2), which is formed in a heel zone (3) and at least partially in a middle foot zone (4) and which comprises a longitudinal arch support (5), and with an upper layer (13) which is disposed on a surface of the blank (2) on the foot side and which is formed over an entire foot zone, characterised in that the upper layer (13) consists of a warming material, particularly a wool-like material, and in that there is disposed on the surface of the blank (2) on the foot side, and beneath the upper layer (13), an aluminium layer (16) which is connected to the upper layer (13) and is formed over the entire foot zone, an adhesive connection being formed between the blank (2) and the aluminium layer (16).
2. A foot bed (1) according to claim 1, characterised in that an insulating layer (17) is disposed on an underside of the upper layer (13).
3. A foot bed (1) according to claim 2, characterised in that the insulating layer (17) is formed from a closed-pore foam.
4. A foot bed (1) according to claim 3, characterised in that the insulating layer (17) has a thickness of 3 mm maximum.
5. A foot bed (1) according to any one of the preceding claims, characterised in that the aluminium layer (16) is formed from an aluminium foil.
6. A foot bed (1) according to any one of claims 2 to 5, characterised in that the insulating layer (17) is formed over the entire foot zone.
7. A foot bed (1) according to any one of claims 2 to 6, characterised in that the upper layer (13) and the insulating layer (17) or the upper layer (13) and the aluminium layer (16) or the upper layer (13) and the insulating layer (17) and the aluminium layer (16) are stuck together in a layer arrangement.
8. A foot bed (1) according to any one of the preceding claims, characterised in that seams (15) are formed through the upper layer (13) or through the upper layer (13) and the insulating layer (17) or through the upper layer (13) and the aluminium layer (16) or through the upper layer (13) and the insulating layer (17) and the aluminium layer (16).
9. A foot bed (1) according to any one of the preceding claims, characterised in that an adhesive material is applied to an underside (18) of the aluminium layer (16) facing the blank (2), in a zone which is not covered by the blank (2).
10. A foot bed (1) according to any one of the preceding claims, characterised in that a drop-shaped pad (6) is formed in the middle foot zone (4).
11. A foot bed (1) according to any one of the preceding claims, characterised in that the blank (2) has in the heel zone (3) an opening (7), a material thickness of the blank (2) so decreasing in the direction of a peripheral edge (9) of the opening (7) that an edge zone (10) of the opening (7) is of funnel-shaped formation on the surface of the blank (2) on the foot side, and wherein in the region of the opening (7) a heel cushion (8) is disposed on the surface of the blank (2) on the foot side so that the opening (7) is covered by the heel cushion (8).

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