EP2624717B1 - Outsole - Google Patents

Description

TECHNICAL AREA

The present invention relates to an outsole in which a plurality of elements protrude downwards in the heel and ball area in relation to a stop surface surrounding them on all sides, which elements by the forces acting on them during running vertically and / or after all in alignment with the stop surface Pages are horizontally deformable.

STATE OF THE ART

Elastic compliant outsoles are known in large numbers in a variety of forms, elastic materials are used with a variety of hardnesses. Also known are outsoles with embedded air or gel pads. They are intended to cushion the loads occurring during running and thereby protect the musculoskeletal system of the runner, in particular its joints, and also convey a pleasant ride.

Most currently commercially available running shoes have spring characteristics that allow suspension primarily in the vertical direction or in the direction perpendicular to the tread while compressing the sole, but are relatively stiff in the horizontal and tangential directions, respectively, and therefore skewed and somewhat slippery do not give enough. The latter is probably due to the fact that a greater deformability of the sole in a horizontal direction would create a kind of floating effect which would have a negative effect on the stability and stability of the runner. Also, the runner would lose a certain amount of distance at each step, since the sole when pushing off of appearance point in each case only in the opposite direction as when something To a certain extent, the swimming effect of the commercial sports shoes of course already occurs. To avoid this effect, in most of these sports shoes, the front portion of the sole, from which the rejection is usually made retatively hard and unyielding

Out WO 03/103430 outsoles are known, which in contrast, despite pronounced tangential deformability, avoid the floating effect by being substantially stiff with respect to tangential deformation beyond at least one critical deformation in the deformed area tm. For the runner, after the critical deformation has been achieved, a secure position results on the respective occurrence - or load point from which he can repel without loss of path again. In WO 03/103430 Different exemplary embodiments are described on the basis of which the solution principle of the tangential deformability of the sole in combination with its stiffness beyond the at least one critical deformation makes it easy to understand

Out WO 2006/089448 Further embodiments of outsoles are known, which according to the in WO 03/103430 described principle work. The functionalities required for the desired effect, namely the tangential deformability and the rigidity against tangential deformation beyond at least one critical deformation, are assigned on the one hand to a vertically and horizontally deformable element and on the other hand to a stop surface. These deformable elements and the stop surfaces are arranged in such a way that Roll over the heels and / or over the ball area of the outsole always both functions in sufficiently close temporal and spatial relationship to each other are used

On soles, which were used by different Laufer longer, large differences in terms of their predominant load on the wear patterns can be determined This is due to different, characteristic for the individual runners ago differences also arise from the different running distances So Kurzstreckeniaufer predominantly so-called forefoot runners In contrast, long-distance runners usually land on the heel and roll over the entire foot here A distinction is made between so-called outer and inner foot runners. Outdoor foot runners land on the outside of the heel, roll over the outer area of the metatarsus and push off in the outer ball area or from the area of the small toes In the inner foot runners, this is the other way round which, for example, landed outside, unrolled across the middle foot and repelled from the area of the big toe and vice versa Die aus WO 2006/089448 known outsoles can be characterized by the fact that in them a deformability vertically but also in the tangential direction forward, backward and sideways is possible to adapt well all these different loads and join the natural movements of the foot

PRESENTATION OF THE INVENTION

The present invention now has the task of providing outsoles of the type mentioned, which are even better adapted to the different running styles

According to the invention this is achieved in such an outsole by the features of claim 1. In an outsole in which a plurality of elements protrude downwards in the heel and ball area in relation to a stop surface surrounding them on all sides, which elements act on them by running on them Forces on the stop surface are vertically deformable and / or horizontally deformable on all sides, at least two groups of elements are present. On the one hand, at least 10 N more force is required with respect to the elements of a first group than with respect to the elements of a second group on the other hand, with respect to the elements of the first group, at least 5N less force is required than with respect to the elements of the second group to bring them into alignment with the stop surface by horizontal deformation

Preferably, the differences in the deformation forces to be applied are even greater, so that with respect to the elements of the first group at least 20 N, preferably 30 N, more force is required than with respect to the elements of the second group, by vertical To bring deformation into alignment with the stop surface and so that in relation to the elements of the first group order at least 7.5 N, preferably 10 N, less force is required than with respect to the elements of the second group to bring them by horizontal deformation in alignment with the stop surface

The division of the elements into two groups with different properties in terms of their deformability has the advantage that the various elements can be arranged in different areas of the running shoe depending on the running style of the runner. In the areas of the outsole in which the runner primarily occurs act in the Occurrence moment the highest forces with at the same time large tangential component For these ranges the elements of the first group are preferred In the areas of the outsoles, over which the runner unwinds and from which it repels itself, on the other hand act comparatively lower forces, whereby also the tangential component less pronounced In these areas, the elements of the second group are preferred

Through skillful arrangement of the various elements, the outsole can be optimally adapted to the running style of the runner Thus, the elements of the first group in the heel area and the element of the second group in the ball area predominate The elements of the first group in the heel and ball area in each case predominantly inside or predominantly be arranged on the outside Or the elements of the first group can be arranged in the heel area predominantly on the inside or predominantly on the outside and in the ball area vice versa Depending on the load pattern, other arrangements are possible

The configuration of the elements may, for example, be such that the elements of the first group protrude downwards by 5-7 mm, preferably by 6 mm from the stop surface and by 1-3 mm, preferably by 2 mm, from the elements of the second group ,

For example, forces of 170-190 N, preferably 180 N may be required to bring the elements of the first group into alignment with the stop surface by vertical deformation. For example, forces of 35-45 can bring them into alignment with the stop surface by horizontal deformation N, preferably 40 N, may be required

To bring the elements of the second group by vertical deformation in alignment with the stop surface, for example, forces of 140 - 160 N, preferably 150 N, may be required. To bring them by horizontal deformation in alignment with the stop surface, for example, forces of 45-55 N, preferably 50 N, may be required.

The elements may be podium-shaped, rotationally symmetrical, but also oval or angular. Above a preferably flat or slightly curved bottom, they are preferably hollow. Opposite the stop surface they are preferably surrounded on all sides by a groove into which they are at least partially deformable. The elements of the first group may protrude further down over the stop surface than the elements of the second group, for example by having a thicker bottom with respect to them. The bottom of at least one element of the first group may e.g. be thickened by a glued pad. The elements may be made of an elastomer which is sufficiently resistant to the stresses involved and also has good grip.

BRIEF EXPLANATION OF THE FIGURES

Fig. 1

unter a) eine erfindungsgemässe Laufsohle mit zwei Gruppen von Elementen und unter b) einen Schnitt A-A' durch die laufsohle und die Elemente;

Fig. 2

einen Schnitt durch ein Element unter a) vor der Verformung, unter b) bei vertikaler Verformung und unter c) bei vertikaler und horizontaler Verformung;

Fig. 3

den Schnitt A-A' aus Fig. 1a) mit durch Pads verdickte Elemente; und

Fig. 4

eine erfindungsgemässe Laufsohle mit zwei Gruppen von Elementen, unter a) - d) verschiedene Anordnungen der Gruppen.

The invention will be explained in more detail with reference to embodiments in conjunction with the drawings. Show it:

Fig. 1

under a) an outsole according to the invention with two groups of elements and b) a section AA 'through the outsole and the elements;

Fig. 2

a section through an element under a) before deformation, b) for vertical deformation and c) for vertical and horizontal deformation;

Fig. 3

the section AA 'off Fig. 1a ) with elements thickened by pads; and

Fig. 4

an inventive outsole with two groups of elements, under a) - d) different arrangements of the groups.

WAYS FOR CARRYING OUT THE INVENTION

In Fig; 1a In the heel region 1a and in the alkali region 1b, the outsole has a plurality of platform-shaped, rotationally symmetrical elements 2a 2b. In the heel region 1a, four elements 2a are arranged such that in each case two inside outward, front In the bale region 1b, seven elements 2b are arranged, of which three are on the inside and three on the outside. The seventh element is located in the middle in the front region. The two foremost elements are arranged close to the toe region of the outsole The area of the outsole, which lies between the heel region 1a and the bale area 1 b, has no elements.

The elements 2a, 2b are each surrounded on all sides by a stop surface 3. Between the elements 2a, 2b and the stop surface 3 there is a groove 4, which surrounds the elements 2a, 2b on all sides

1b ) shows a section AA 'through the outsole Fig. 1a , At the bottom of a running shoe or at its midsole 5, a layer or layer 6 of an elastically deformable material such as Phylon or polyurethane is attached. The midsole 5 has recesses in the regions of the elements 2a, 2b. The layer 6 is integrally formed from a resilient elastomer and forms the stop surface 3 and the elements 2a, 2b The layer 6 can also be formed of several pieces between the stop surface 3 and The elements 2a, 2b are in the unloaded state against the stop surface 3 down before you have a flat or slightly curved bottom 7 on between the flat bottom 7 and the midsole 6 is in the range Recesses a cavity 8 present In the area of the stop surface 3, the layer 6 is applied directly to the midsole 5

The elements 2a 2b are divided into a first group 2a and a second group 2b in the unloaded state, the elements of the first group 2a by 5 - 7 mm preferably by 6 mm with respect to the stop surface 3 and by 1-3 mm, preferably by 2 mm, downwards relative to the elements of the second group 2b

As in the Fig. 2a ) to c), the elements 2a, 2b of the outsole are vertical when they hit the ground 10 (FIG. Fig. 2b )) and / or horizontally on all sides ( Fig. 2c deformable by the forces acting on them when acting on them are printed together in alignment with the stop surface 3 and / or printed laterally into the groove 4 into it, with respect to the elements of the first group 2a by at least 10 N more force with respect to the elements of the second group 2b is required to bring them by vertical deformation in alignment with the stop surface 3 To bring them by horizontal deformation in alignment with the stop surface 3, with respect to the elements of the first group 2a to at least N less force than required with respect to the elements of the second group 2b.

With respect to the vertical deformation, the elements of the first group 2a require forces of 170-190 N, preferably 180 N, to bring them in alignment with the stop surface 3. On the other hand, elements of the second group 2b have lower forces of 140 - 160 N, preferably 150 N, required. The difference in these forces of at least 10 N is achieved mainly by the elements of the first group 2a projecting further down than the elements of the second group 2b. In this way, the path to be overcome is until the bottom 7 of the element of the first group 2a is brought into alignment with the stop surface 3, and thus the necessary force, greater

Conversely, with respect to the horizontal deformation, with respect to the horizontal deformation, the elements of the first group 2a require forces of 35-45 N, preferably 40 N, to bring them into alignment with the stop surface 3 Elements of the second group 2b require forces of 45-55 N, preferably 5 N, to bring them into alignment with the stop surface 3. Also, this difference in forces of at least 5 N is achieved mainly by the elements of the first group 2a continuing to follow lower than the elements of the second group 2b In this way, the leverage of the higher elements of the group 2a is greater, so that less force for the deformation must be expended.

The fact that the elements of the first group 2a project further down over the stop surface 3 than the elements of the second group 2b is achieved by having a thicker bottom 7 against this z B. The same effect is also achieved when the bottom 7 of the elements the first group 2a is thickened by an overlaid pad 9 as in Fig. 3 shown.

The Fig. 4a ) - d) show in the same representation as Fig. 1a ) According to the invention outsoles with the two groups of elements 2a 2b in different arrangements, in each case only the soles for a left shoe are shown It is understood that the respectively associated right shoe should be provided with a mirror image as a rule arrangement, wherein for runners with different feet or foot positions of the left and the right shoe could also be individually designed differently The elements of the first group 2a are marked by hatching. The elements of the second group 2b have no hatching

In Fig. 4a ), the elements of the first group 2a in the heel region 1a and the elements of the second group 2b in the ball region 1b are arranged. This arrangement is particularly suitable for long-distance runners, which "land" on the heel and roll over the bale They need for cushioning and damping of the first high load peak in the heel area a large vertical travel in combination with a slight horizontal deformability because of in this phase also large horizontal component These requirements are fulfilled precisely by the elements of the first group 2a During the subsequent unwinding, the load due to the acting forces is lower, so that in this case the elements of the second group 2b are more favorable in terms of their vertical and horizontal deformability and also perceived as more comfortable become. The arrangement of Fig. 4a ) is also suitable for normal walking.

In the Fig. 4b Elements of the first group 2a are also arranged in the ball region 1b and vice versa Elements of the second group 2b are also arranged in the heel region 1a. However, the elements of the first group 2a in the heel region 2a still predominate and the elements of the second group 2b in the ball region 1b.

In Fig. 4b ) are in addition the elements of the first group 2a predominantly on the inside and the elements of the second group 2b predominantly on the outside. This arrangement is especially suitable for indoor runners.

Fig. 4c ) shows one Fig. 4b ) corresponding embodiment, however, with predominantly outer side arrangement of the elements of the first group 2a or predominantly inside arrangement of the elements of the second group 2b, which is better suited for Außenfussläufer.

In Fig. 4d ) are the elements of the first group 2a in the heel area 1a predominantly on the outside and in the ball area 1b, however, inversely arranged predominantly on the inside. This arrangement is favorable for runners, which roll across the foot from the back outside to the front inside. For a more likely side occurring rolling behavior from the rear inside to the outside, the elements of the first group 2a in the heel area 1a could also be predominantly arranged on the inside and in the ball area 1b predominantly on the outside.

Of course, further distribution patterns of the different elements are also possible, whereby the specific movements of different sports can be taken into account. Finally, it would be possible to provide additional elements with still other characteristics in addition.

NAME LIST

1a

heel

1b

ball area

2a

Element of the first group

2 B

Element of the second group

3

stop surface

4

groove

5

midsole

6

location

7

ground

8th

cavity

9

pad

10

ground

Claims (11)

1. An outsole, with which, in the heel and in the ball-of-the-foot region (1a, 1 b), a plurality of elements (2a, 2b) project downwards in relation to a stop surface (3) which encompasses them on all sides, which elements, as a result of the forces acting thereon when running, are deformable vertically and/or horizontally on all sides until they are in line with the stop surface (3), characterized in that at least two groups of elements (2a, 2b) are provided,
   wherein, with regard to the elements of a first group (2a), at least 10 N more force is required than with regard to the elements of a second group (2b) to bring them in line with the stop surface (3) as a result of vertical deformation,
   and wherein, with regard to the elements of the first group (2a), at least 5 N less force is required than with regard to the elements of the second group (2b) to bring them in line with the stop surface (3) as a result of horizontal deformation.
2. The outsole as claimed in claim 1, characterized in that
   with regard to the elements of the first group (2a), at least 20 N, preferably 30 N, more force is required than with regard to the elements of the second group (2b) to bring them in line with the stop surface (3) as a result of vertical deformation,
   and that, with regard to the elements of the first group (2a), at least 7.5 N, preferably 10 N, less force is required than with regard to the elements of the second group (2b) to bring them in line with the stop surface (3) as a result of horizontal deformation.
3. The outsole as claimed in one of claims 1 or 2, characterized in that the elements of the first group (2a) predominate in the heel region (1a) and the elements of the second group (2b) in the ball-of-the-foot region (1b).
4. The outsole as claimed in one of claims 1 - 3, characterized in that the elements of the first group (2a) in the heel and in the ball-of-the-foot region (1a, 1 b) are in each case arranged predominantly on the inside or predominantly on the outside.
5. The outsole as claimed in one of claims 1 - 3, characterized in that the elements of the first group (2a) in the heel region (1a) are arranged predominantly on the inside or predominantly on the outside, and reversed with respect thereto in the ball-of-the-foot region (1b).
6. The outsole as claimed in one of claims 1 - 5, characterized in that the elements of the first group (2a) project downwards by 5 - 7 mm, preferably by 6 mm, in relation to the stop surface (3), and by 1 - 3 mm, preferably by 2 mm, in relation to the elements of the second group (2b).
7. The outsole as claimed in one of claims 1 - 6, characterized in that, with regard to the elements of the first group (2a)
   170 - 190 N, preferably 180 N, are required to bring them in line with the stop surface (3) as a result of vertical deformation,
   and 35 - 45 N, preferably 40 N, are required to bring them in line with the stop surface (3) as a result of horizontal deformation.
8. The outsole is claimed in one of claims 1 - 7, characterized in that, with regard to the elements of the second group (2b)
   140 - 160 N, preferably 150 N, are required to bring them in line with the stop surface (3) as a result of vertical deformation,
   and 45 - 55 N, preferably 50 kp, are required to bring them in line with the stop surface (3) as a result of horizontal deformation.
9. The outsole as claimed in one of claims 1 - 8, characterized in that the elements (2a, 2b) are in the form of a pedestal, preferably rotationally symmetrical, hollow above a preferably flat base (7) and are encompassed on all sides in relation to the stop surface (3) by a groove (4) into which they are at least partially deformable.
10. The outsole as claimed in claim 9, characterized in that the elements of the first group (2a) project further downwards over the stop surface (3) than the elements of the second group (2b), in that they have a thicker base (7) in comparison thereto.
11. The outsole as claimed in claim 10, characterized in that the base of at least one element of the first group (2a) is thickened by a glued-on pad (9).

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