EP0410163A2 - Sole with lamellas - Google Patents

Abstract

The invention relates to a sole (10) for shoes, in particular leisure and sports shoes, the underside (11) of which forming the outsole is profiled at least in sections, the profile comprising at least one cleat (12). The invention is characterised in that a part of the lower surface (13) of the cleat is formed by a lamella field (14, 14'), the lamellae (16, 16') being arranged essentially transversely to the direction of movement in an elongate manner and behind one another in the direction of movement and projecting downwards elastically deformably from the plane of the lower surface (13) of the cleat (12) by a height h. <IMAGE>

Description

The invention relates to a sole for shoes, in particular leisure and sports shoes, whose underside forming the tread is profiled at least in sections, the profile comprising at least one stud.

In practice, a wide variety of leisure and sports shoes are known. They are based on the common demand to guide and support the foot and to give the wearer a secure hold in a wide variety of situations. Slipping or slipping away should be avoided, especially in unpaved terrain. For this purpose, the soles of the known leisure and sports shoes have differently profiled treads. The profile consists of lugs and / or ribs spaced relatively far apart. Due to this relatively rough profile, the above requirement is only insufficiently met. The soles of these well-known shoes offer only little support, especially in terrain with loose, sandy ground. Since the studs and / or the ribs are relatively rigid, they cannot press into the loose ground. In addition, only a few cleats always come into contact with the ground, which further restricts the step and stability.

The invention has for its object to provide a sole of the type mentioned in such a way that the shoe offers sufficient sure-footedness and stability in unpaved terrain, especially on loose, sandy ground.

The above object is achieved in that a part of the lower surface of the tunnel is formed by a lamella field is, the lamellae are arranged essentially transversely to the running direction and are arranged one behind the other in the running direction and protrude elastically deformable from the plane of the lower surface of the stud by a height h.

The combination of the relatively coarse lug profile with the fine lamella profile ensures a high level of footing and stability in any terrain, especially on loose, sandy ground. The slats of the slat field can easily claw into the loose surface due to their elastic deformability and thus offer a secure hold. In addition, the lamella field increases the contact area between the sole and the ground, which also contributes to an increase in stability and / or sure-footedness. The statement that the lamellae run transversely to the running direction also includes an angle of up to approximately 45 ° to the running direction.

To avoid a floating effect and to limit the deflection angle of the lamella, it is proposed that at least one column following a lamella have a depth t measured from the lower surface of the gallery. The lamella can then only be deflected towards the column until it rests on the lower edge of the column.

A column is also provided between every two successive slats, the total vertical extent of the space between two successive slats measured from the lower edge of the slats being equal to the sum (h + t) of the height h and the depth t. This will deflect one Slat limited in both directions. The height h should preferably be equal to the depth t.

In order to achieve an optimal combination of the lamella profile with the cleat profile that is adapted to the respective main use of the shoe, it may be necessary that the lamella field adjoins a lamella-free and gap-free surface section of the lower surface of the cleat along at least one boundary line. However, it is also possible for the lamella field to adjoin a plurality of lamella-free and gap-free surface sections of the lower surface of the gallery along several boundary lines. For example, it is possible for the lamella field to be arranged in the middle of a gallery.

The slats of the slat field can have different vertical cross sections. So it is possible on the one hand that the slats of the field have a substantially rectangular vertical cross section or on the other hand a vertical cross section pointed downwards and backwards. The latter variant has the particular advantage that the slats penetrate better into the loose surface and can thus ensure good power transmission between the foot and the surface.

In order to be able to meet the most varied of terrain requirements, it is further proposed that the studs be arranged along the circumferential contour of the sole and that the lamella fields arranged on the stud bottom surfaces adjoin the edge of the stud bottom surface remote from the contour. This type of combination of the stud profile with the lamella fields achieves an optimal profile of the sole adapted to the requirements when the foot appears. When putting on a foot without shoes the respective outer parts of the foot first come into contact with the floor. If the foot is then subjected to a further load, for example in order to achieve a better hold, the contact area of the foot increases toward the inner arch of the foot. In the same way, when stepping on a shoe according to the invention, the coarser profile of the sole first comes into engagement with the ground and, if this has not yet achieved sufficient footing and stability, then the finer lamella profile when subjected to further stress.

In order to disturb the running properties of the shoe as little as possible, relatively small slats are provided in relation to the sole size. It is proposed that the lamella width measured in the running direction be approximately 1 to approximately 3 mm, preferably approximately 2 mm. It is proposed for the slat length that this corresponds to approx. 5 to approx. 10 times the slat width. A value in the order of magnitude of approximately 1 mm to approximately 3 mm, preferably 2 mm, is proposed for the lamella spacing measured in the running direction.

In the known leisure and sports shoes, the studs and / or ribs are relatively far apart from one another in the running direction. Small stones can therefore settle in the spaces between two successive tunnels or ribs. With each occurrence, these stones press through the sole and through a possibly existing intermediate layer into the inside of the shoe, so that they can be felt more or less clearly on the foot surface. These pressure points affect the feeling of walking and can even lead to blisters or blood blisters.

It is a further object of the invention to design a shoe sole of the type mentioned at the outset in such a way that stones which have penetrated into the stud spaces are automatically removed therefrom.

To achieve the above object, it is proposed that an ejector web running essentially transversely to the direction of travel is provided in the bottom of an intermediate space between two tunnels which follow one another in the running direction, the height of which is smaller than the height of the tunnel measured from the bottom of the intermediate room.

The proposed solution ensures that a stone that has penetrated is ejected through the ejector web either due to pressure compression or due to elastic deflection at the latest when the space is widened with a corresponding deformation of the sole, at least beforehand. The statement that the ejector web runs transversely to the running direction also includes an angle of up to 45 ° to the running direction.

In order to ensure optimal ejection of the stone, it is proposed that the ejector web have the shape of a triangle in a vertical cross section. The triangular base is smaller than the width of the space base, which ensures an elastic deformation of the triangle.

So that no stone can settle between the tunnel side wall facing the ejector web and the ejector web, it is further proposed that the triangle height is at most equal to the triangle base.

So that no stones can also settle in the bottom between the side flank of the ejector web and the side wall of the tread liner facing the ejector web, it is provided that the triangular flanks merge into the adjacent side flats of the tunnel.

The ejection movement through the ejector web is additionally supported in that the stud side surfaces are inclined towards an adjacent vertical surface, specifically away from the central plane of the ejector web.

In most leisure and sports shoes, an intermediate sole layer is provided between the inner surface and the top of the sole, which is intended to have a damping effect. The intermediate layer of the sole is usually applied by a vulcanization process on the upper side of the sole. Since relatively large forces can be transmitted between the sole and the foot, only the vulcanization can lead to detachment of the intermediate layer of the sole.

It is therefore a further object of the invention to design a sole of the type mentioned at the outset in such a way that the intermediate sole layer applied to the upper side of the sole is reliably held there.

The above object is achieved in that anchoring ribs are formed on a lower surface of the sole substantially parallel to this shoe connection surface, which extend essentially transversely to the running direction and extend from the edge of the sole.

By means of the anchoring ribs additionally provided on the upper side of the sole, which forms the shoe connection surface, a force transmission between the shoe sole and the intermediate layer is achieved, which relieves the connection between the sole intermediate layer and the sole, which is achieved by vulcanization. The statement that the anchoring ribs run transversely to the running direction also includes an angle of up to 45 ° to the running direction.

So that these ribs do not appear visibly to the outside after application of the intermediate sole layer, it is further proposed that the anchoring ribs be covered on the edge side by a raised shoe edge section which appears visibly on the finished shoe from the outside.

The raised shoe edge section is provided on its visible side with a fine profile, preferably a punch and / or a lamination. This ensures that if the foot bends, it cannot slide away in or against the direction of travel.

When it occurs, most of the force is transferred from a pronation area near the heel and a supination area near the ball. As a result, it is further provided that the ribs are arranged on the top in the pronation and supination area.

In the known leisure and sports shoes, the soles have a pronation area near the heel and a supination area near the ball and are profiled at least in sections on the underside forming the tread, the profile comprising cleats. Such soles are mostly made of elastic for cushioning purposes Made of material. The softness of the material is limited by the requirement that the sole must have a certain abrasion resistance. An intermediate sole layer is arranged between the sole and the upper, but the overall softness of this sole construction is limited.

It is a further object of the invention to provide a sole with the features of claim 24 in such a way that it has greater softness.

The above object is achieved in that the tunnels located outside the pronation and supination area form cavities on the upper side of the sole which are intended for filling by material of an intermediate layer of sole applied on the upper side of the sole. The intermediate sole layer can be, for example, a foam wedge. This achieves an additional damping effect, but a relative stiffness is retained in the pronation or supination range, which is particularly crucial for the transmission of force.

So that the cavities are relatively easy to manufacture, it is proposed that the inner contour of the cavities corresponds to the outer contour of the studs.

A rubber or rubber mixture with a Shore hardness A of approximately 65 to approximately 75 is proposed for the material of the sole, preferably with a Shore hardness A of approximately 70. The supination and pronation range can be made from another mixture with a Shore hardness A of approximately 55 to approximately 65, preferably with a Shore hardness A of 60. In this way, a damping corresponding to the load is achieved. For the intermediate sole layer, a Foam material, in particular polyurethane, with a Shore hardness A of approximately 40 to approximately 50, preferably with a Shore hardness A of 45, has been proposed. A further damping effect is achieved in this way.

• Fig. 1 eine Ansicht einer Sohlenunterseite einer er­findungsgemäßen Sohle;
• Fig. 2 einen Teilschnitt entlang der Linie II-II in Fig. 1;
• Fig. 3 einen Teilschnitt entlang der Linie III-III in Fig. 1;
• Fig. 4 eine Ansicht einer Sohlenoberseite der erfin­dungsgemäßen Sohle;
• Fig. 5 einen Teilschnitt entlang der Linie V-V in Fig. 4; und
• Fig. 6 einen Teilschnitt entlang der Linie VI-VI in Fig. 4.

Further refinements and an exemplary embodiment of the above invention are explained below with reference to the drawing. It shows:

• Figure 1 is a view of a sole underside of a sole according to the invention.
• Fig. 2 is a partial section along the line II-II in Fig. 1;
• Fig. 3 is a partial section along the line III-III in Fig. 1;
• 4 shows a view of an upper side of the sole of the sole according to the invention;
• Fig. 5 is a partial section along the line VV in Fig. 4; and
• 6 shows a partial section along the line VI-VI in FIG. 4.

In Fig. 1, a sole according to the invention is generally designated 10. It is preferably made of a rubber mixture with a Shore hardness A of 70 and has an outer peripheral contour adapted to the anatomical shape of a foot. Cleats 12 are arranged in sections on their sole underside 11 forming the tread.

These studs 12 protrude outward from the bottom of the sole by the same amount. They each have different horizontal cross sections, but can also have identical cross sections. The lugs 12 arranged along the outer circumferential contour of the sole 10 are provided with a lamella field 14 on the lower lug surface 13 running parallel to the sole lower surface 11. The lamella fields 14 are arranged on the edge of the respective stud 12 remote from the outer peripheral contour.

The lamella field 14 consists of individual lamellae 16, which are arranged substantially transversely to the running direction and arranged one behind the other in the running direction and protrude elastically deformable from the plane of the lower surface 13 of the stud 12 by a height h. Between each two slats 16 there are gaps 18 which, measured from the lower surface 13 of the stud 12, have the depth t. The total vertical extent between the lower edge of the slats and the bottom of the column is therefore equal to the sum (h + t) of the height h and the depth t (FIG. 2). Typically, the lamella field 14 begins and ends with a lamella 16. However, there is also the possibility that the lamella field 14 begins with a lamella 16 and ends with a column 18. Another variant is indicated by the arrow B in FIG. 2. There, the lamella field 14 begins with a column 18 and can then end either with a lamella 16 or with a column 18.

The lamella field 14 borders along a boundary line 20 to a lamella-free and gap-free surface section of the lower surface 13 of the stud 12. But there is also the possibility, as with the cleats 12 in the area of the toe and the heel, that the slats 16 extend over the full cleat lower surface 13 stretch and a surface section in or against the direction of travel is free of slats and gaps.

In vertical cross section, each lamella 16 has a rectangular shape. In Fig. 2a, a lamella field 14 'is shown, the lamellae 16' have a downward and counter to the running direction tapered back vertical cross section. The direction of travel is indicated by an arrow C in FIG. 2a.

The slat width and the distance between two slats 16 is 2 mm. The slat length corresponds to approximately 5 to 10 times the slat width.

Ejector webs 22 are arranged in an intermediate space bottom between the cleats 12 arranged along the circumferential contour of the sole 10. These have an equilateral triangular shape in their vertical cross section. The triangular base is smaller than the width of the space base 21. The side flanks of the ejector webs 22 merge into the side surfaces 26 of the studs 12 facing the ejector webs 22. The side walls 26 are inclined against an adjacent vertical surface, specifically away from the central plane of the ejector webs 22. The length transversely to the running direction of the ejector webs 22 corresponds to the length of the space base 21.

In the area of the ball of the foot, the sole 10 has a supination area 28 and in the area of the heel a pronation area 30. These two areas are separated from the remaining sole 10 by a boundary line 29. They can have a different material mixture than that of the remaining sole 10. The material mixture of the supination and pronation region 28, 30 should preferably be softer than the material mixture of the remaining sole 10. It has a Shore hardness A of approx. 60.

In the supination and pronation area 28, 30, the sole 10 has anchoring ribs 34 on its upper side 31, which serves as a connecting surface to the rest of the shoe (FIGS. 3, 4, 6). The anchoring ribs 34 extend from the outer circumferential contour of the sole 10 into the interior of the sole. Their vertical cross-section decreases towards the inside of the sole. At the edge, they are covered by a raised shoe edge section 36 (FIGS. 6, 7). This edge section 36 appears visibly on the finished shoe from the outside. It is provided on its visible side with a fine profile, preferably a punch or lamination (Fig. 7).

Outside the supination and pronation area 28, 30, on the sole upper side 31, cavities 38 aligned with the studs 12 are arranged (FIGS. 4, 5). The cavities 38 are adapted in their inner contour to the outer contour of the studs 12. Foam material, preferably polyurethane foam with a Shore hardness A of approximately 45, an intermediate sole layer 32, which is applied on the upper side 31 of the sole, can additionally be accommodated in them.

The advantages of the present invention are clear from the foregoing description. By combining a coarse lug profile with a fine lamella profile, the sole 10 according to the invention is suitable for a wide variety of uses, such as paved and unpaved terrain. In addition, it is ensured by the ejector webs 22 that stones cannot get stuck between the coarse tunnel profile. In addition, it is ensured by the additional anchoring ribs 34 that the on the Sole upper layer 31 to be applied remains firmly connected to the sole 10. Finally, a particularly favorable damping of the sole 10 is achieved through the additional cavities 38.

Claims (28)

1. sole for shoes, in particular leisure and sports shoes, the underside (11) of which forms the tread is profiled at least in sections, the profile comprising at least one stud (12),
characterized,
that part of the tunnel lower surface (13) is formed by a lamella field (14, 14 '), the lamellae (16, 16') being arranged essentially transversely to the running direction and in succession in the running direction and from the plane of the lower surface (13) of the stud (12) protrude elastically deformable downwards by a height h. 2. Sole according to claim 1, characterized in that at least one on a lamella (16, 16 ') following column (18) has a measured from the lower surface (13) of the stud (12) from depth t. 3. Sole according to claim 2, characterized in that between two successive slats (16, 16 ') each have a column (18) is provided, the vertical total extent of the measured from the lower slat edge between two successive slats (16, 16' ) is equal to the sum (h + t) of height h and depth t. 4. Sole according to one of claims 1 to 3, characterized in that
that the slat field (14, 14 ') along at least one boundary line (20) to a slat and gap-free surface section of the lower surface (13) of the stud (12) adjoins. 5. Sole according to one of claims 1 to 4, characterized in
that the lamella field (14, 14 ') along several boundary lines (20) adjoins several lamella and gap-free surface sections of the lower surface (13) of the stud (12). 6. Sole according to one of claims 1 to 4, characterized in
that the lamella field (14, 14 ') adjoins a gap (18) in the running direction. 7. Sole according to one of claims 1 to 6, characterized in
that the slats (16, 16 ') of the slat field (14, 14') have a substantially rectangular or downward and pointed vertical cross section. 8. Sole according to one of claims 1 to 7, characterized in
that the studs (12) are arranged along the circumferential contour of the sole (10) and the lamella field (14, 14 ') each adjoin the edge of the stud surface 13 remote from the circumferential contour. 9. Sole according to one of claims 1 to 8, characterized in
that the lamella width measured in the running direction is approximately 1 to approximately 3 mm, preferably approximately 2 mm. 10. Sole according to one of claims 1 to 9, characterized in that
that the lamella distance measured in the running direction is approximately 1 to approximately 3 mm, preferably approximately 2 mm. 11. Sole according to one of claims 9 or 10, characterized in that
that the slat length corresponds to approx. 5 to approx. 10 times the slat width. 12, sole for shoes, in particular for leisure and sports shoes, whose underside (13) forming the tread is profiled at least in sections, the profile comprising at least one stud (12), in particular according to one of claims 1 to 11, characterized in that In the base (21) of an intermediate space between two successive tunnels (12), an ejector web (22) is provided which runs essentially transversely to the running direction, the height of which is smaller than the height of the stud (12) measured from the intermediate base (21) . 13. Sole according to claim 12, characterized in that the length of the ejector web (22) corresponds to the length of the intermediate space. 14. Sole according to one of claims 12 or 13, characterized in that
that in a vertical cross section the ejector web (22) has the shape of a triangle. 15. Sole according to claim 14, characterized in that the triangular base is smaller than the width of the space base (21). 16. Sole according to one of claims 14 or 15, characterized in that
that the triangle height is at most equal to the triangle base. 17. Sole according to one of claims 12 to 16, characterized in that
that the triangular flanks pass over curves (24) into the adjacent gallery side surfaces (26). 18. Sole according to claim 17, characterized in that the cleat side surfaces (26) are inclined against an adjacent vertical surface, specifically from the central plane of the outward web (22). 19. Sole for shoes, in particular leisure and sports shoes, in particular according to one of claims 1 to 18, characterized in that anchoring ribs (34) are formed on a lower sole surface (11) substantially parallel to this shoe connection surface (31) extend substantially transversely to the running direction and from the edge of the sole (10). 20. Sole according to claim 19, characterized in that the anchoring ribs (34) are covered on the edge side by a raised shoe edge portion (36) appears visible on the finished shoe to the outside. 21. Sole according to claim 20, characterized in that the raised shoe edge portion (36) is provided on its visible side with a fine profile, preferably a punching or lamination. 22. Sole according to one of claims 19 to 21, wherein the sole (10) has a pronation area (30) close to the heel and a supination area (28) close to the ball, characterized in that the anchoring ribs (34) on the upper side (31) in the pronation area ( 30) and are arranged in the supination area (28). 23. Sole according to one of claims 19 to 22, characterized in that the anchoring ribs (34) decrease towards the central region of the sole (10). 24. Sole for shoes, in particular for leisure or sports shoes, which has a supination area (28) close to the ball and a pronation area (30) close to the heel and whose underside (11) forming the tread is profiled at least in sections, the profile comprising cleats (12) , in particular according to one of claims 1 to 23, characterized in that the studs (12) located outside the supination area (28) and the pronation area (30) form cavities (38) on the upper side of the sole (31) which are used for filling by material on the soles upper (31) applied sole intermediate layer (32) are determined. 25. Sole according to claim 24, characterized in that the inner contour of the cavities (38) corresponds to the outer contour of the studs (12). 26. Sole according to one of claims 1 to 25, characterized by
the use of a rubber or rubber material as the manufacturing material, which has a Shore hardness A of about 65 to about 75, preferably about 70. 27. Sole according to one of claims 19 to 27, characterized by the use of a foam material as the production material for the intermediate sole layer (32), in particular polyurethane, which has a Shore hardness A of approximately 40 to approximately 50, preferably approximately 45. 28. Sole according to one of claims 24 to 27, characterized by the use of a rubber or rubber material as the production material for the supination area (28) and the pronation area (30), which has a Shore hardness A of approx. 55 to approx. 65, preferably approx .60 has.

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