DE2216872A1 - OUTSOLE MADE OF FLEXIBLE PLASTIC FOR SPORT SHOES - Google Patents

Description

12.861 / 2 30 / egg

PATENT LAWYERS

Pr. Rir. rl. T.TTER LOUIS

r.fl.-rby;:. r '", \ l./J rCHLAU O 0 1 R Q 7 9

Dipl- tar; .F?., '. NiZ LOHRENTZ IZ \ Ό OI £

Z 5 00 ί-.Ι G Ri JHERC /
ΚΙ.S \ .L ... »rLATZ /

Mr. Adolf DASSLER, 8522- Herzogenaurach, Am Bahnhof

Outsole made of flexible plastic for sports shoes

The invention relates to an outsole made of flexurally elastic .. plastic for sports shoes, especially those for running

and jumping competitions which have protruding webs formed on the running side at least in the front part ",

Plastic sheeting is becoming more and more popular for running and jumping competitions. In doing so, surrender However, new problems arise when it comes to the leg strength of the runner safely and without loss of strength on the track transferred to. As is well known, 5a penetrate the conventional

3098 42/0188

221687ε

Barrel spikes, v / as they are used on cinder tracks, are relatively difficult to get into the plastic track and are after Penetration of the web so tightly enclosed and held that a transverse movement of the shoe relative to the web is practical excluded and pulling out the mandrels is associated with a relatively high expenditure of force. the end This behavior of the plastic webs compared to known running mandrels gives rise to a number of difficulties, yes even certain dangers for the athlete. In particular, when cornering, the action to be taken during the rolling process The shoe does not take part in changes of direction, which is why the ankle is additionally stressed. Besides that the increased power requirement reduces the athlete's performance.

To remedy this, a number of Made suggestions. For example, it has already been proposed that the outsole should have a number of thorns compared to the previous number to provide an increased number of relatively short, thin pins. Apart from that, even with such a Execution of the sole, the mobility of the shoe parallel to the track is only insignificantly improved, are such Shoes have not been approved by the responsible authorities because of the supposedly increased risk of injury. Allowed are only sports shoes that have a maximum of six thorns in the front part of the sole.

309842/0166

Another well-known suggestion is an outsole to be used, which is provided with a larger number of sharp-edged profile projections. However, it turned out that such profile advances over time damage the plastic sheets and, moreover, do not have sufficient wear resistance. Also allowed these protrusions do not protrude too far above the sole, in order to avoid any risk of injury for the athletes. It is forbidden to manufacture the projections from metal due to the associated greater weight and the difficulty in attaching the profile projections .

Furthermore, outsoles for sports shoes are already known which protrude on the running side in a honeycomb pattern Strips or the like, between which, for example, diamond-shaped depressions are formed. The webs result although a certain increase in the grip on plastic sheets. However, as soon as the track and the sole are wet the friction between track and sole is reduced so much that the webs alone are no longer sufficient, in order to offer at least the surface grip that is essential for cross-country skiers. Furthermore, these are known profile soles for soft or slippery floors, where gripping elements are incised in order to achieve grip on the floor in the soil is required, not suitable.

309842/0166

However, there is currently more and more of a tendency to equip sports shoes with outsoles that - if necessary after minor changes - allow the use of the shoes on almost all floors.

Finally, a sports shoe outsole has already been proposed, in which an increased number of gripping elements compared to the usual number of thorns is provided in the front part was, the gripping elements each had approximately the shape of a sloping roof. The single ones Gripping elements were roughly like those in DT-Gbm No. 1 888 120 designed profile projections shown in Figure 2. Such an outsole may be relatively good on a plastic floor have good gripping properties. However, if the sole is used on softer ground, the There is a risk that, because of the relatively low penetration depth of the actual gripping elements, the grip on the ground E.g. not enough for sprinters. So this known sole is essentially only one for plastic webs suitable for a certain degree of hardness. Already on the usual cinder tracks can because of the always present on the surface of the track Granulate or the like may not even be able to achieve the required surface grip, which is why the known profile soles, such as the sole according to the aforementioned utility model, a have a very high number of roof-shaped projections.

309842/0186

The aim of the invention is now to propose a sole training for sports shoes that is excellent in both A perfect grip on hard as well as on soft, on dry and on damp floors, so both the ground grip for sprinters as well as the surface grip for cross-country skiers, especially on Plastic floors, ensured, trying at the same time should be to keep the weight of the sole as low as possible. To solve this problem is now with an outsole It is proposed of the type mentioned at the beginning that the molded webs are formed at least in some areas of roof-shaped projections as gripping elements, which have blade-like free front edges are increased. For a number of areas of application it will be sufficient if the webs are arranged transversely to the longitudinal axis of the sole and approximately parallel to one another. In some cases it can However, it can also be advantageous to provide the webs in two groups at an angle to the longitudinal axis of the sole, so that approximately result in honeycomb depressions, the roof-shaped projections between the adjacent circles points of the webs are arranged so that the projections run approximately zigzag.

A sports shoe with one designed according to the invention The outsole, at least in the area of the front sole, gives the athlete a wide variety of properties on tracks

309842/0166

a very good hold. .'on the usual plastic sheets

During normal operation, only the blade-shaped front edges of the roof-shaped projections come into effect. These projections are only available in the required number. Since they do not penetrate very far into the web is

for this and for pulling out only a relatively small amount of effort by the athlete is required, so that his performance is hardly affected. In extreme situations, for example when jumping, the projections can go so far are pressed into the plastic sheet that the honeycomb-like arranged webs also against the surface of the Train to be pressed. As a result, the grip becomes more secure due to the further penetration of the projections resulting dimension also increased. In a similar way, the webs come to the

Wear when a sports shoe with one designed according to the invention The outsole is used on soft ground, i.e. the roof-shaped protrusions penetrate far into the ground, which also significantly increases the grip on soft ground. When the ridges intersect and between them, for example, include diamond-shaped or honeycomb-shaped depressions, it can even be expected that these Depressions on slippery, especially wet, webs develop a certain suction cup effect. Another advantage An outsole according to the invention can be seen in the fact that, if necessary, the sole plate is relatively thin and

309842/0166

as a result, it can also be held relatively easily, since under certain circumstances the webs covering the sole have a Ensure sufficient stiffening of the soleplate. It can therefore be an outsole according to the invention despite the Presence of a relatively large number of roof-shaped projections can be produced with a weight which is lower is, as "for example the weight of the known sole, in which individual, roof-like on a smooth plate Gripping elements are provided. For the sake of completeness, it should also be noted that

309842/0186

the roughly triangular, lateral end faces of the roof-shaped projections, of course, provide a good protection against Offer sliding in the direction of the cutting edge-like front edge of the projections.

Normally, the free front edges of the roof-shaped projections are the same distance over the running surface of the outsole protrude. For special purposes, however, it can be advantageous to use the roof-shaped projections to form several different ones to form stepped front edges protruding far beyond the tread of the outsole. Receives from this on the one hand there is a further refinement in the adaptation to soils of different hardnesses. In addition, the Shoe in the direction of the free front edge, but at the same time the original grip due to the grip another front edge on the ground, namely that of the level below, increased. If necessary, can also only the roof-shaped projections provided in the edge region of the sole may be stepped in this way.

Ks is provided according to the invention is that the roof-shaped projections boabstandeten areas are arranged in multiple in-soles longitudinal direction from one another, they preferably in several transversely to the sole longitudinal axis extending rows. The projections of a row can be oriented approximately in a zigzag shape. Through the

309842/0166

By attaching the projections in certain areas, the weight of the sole is understandably kept relatively low. Besides that the bars can come into engagement earlier if necessary. The rows will generally be arranged there v / o the thorns are provided for appropriate sports shoes. Of course, the rows do not have to cross Extend over the entire outsole. You could also only in the edge area or on other, proven to be favorable Places to be arranged.

It is further within the scope of the invention that also roughly along of the edge of the outsole at least one web is provided, which is spaced from each other with the formation of each arranged, roof-shaped projections is increased in areas.

In order to further enlarge the areas of application for a sole according to the invention, thorns or the like can be interchangeable on the sole be attachable. The thorns are preferably arranged in the area of round support plates, in their area the thickness of the outsole is increased. The support plates expediently have a circular edge ring, the height of which over the running side of the outsole roughly corresponds to that of the roof-shaped projections, which means that in the absence of thorns in the area The edge rings still ensure a good grip on the sole. The edge ring of the support plates can be

309842/0166

be lumpy. However, it is particularly favorable if he is interrupted several times by recesses.

The roof-shaped projections are approximately triangular in cross section. In order to ensure a good gripping effect of the bars, it is proposed to make this also approximately triangular in cross-section, whereby it is particularly favorable if the roof-shaped projections and / or the webs are cross-sectional have the shape of an isosceles triangle.

Of course, the sole can be made according to the invention the most varied of materials can be produced. It is particularly favorable, however, to have the sole made of a hard set To produce nylon in one piece.

Further features, details and advantages of the invention result from the following description of preferred exemplary embodiments of the outsole according to the invention the drawing.

Show it:

I Figure 1 is a bottom view of a first embodiment

shape of a front sole according to the invention;

309842/0166

Figure 2 is a view corresponding to Figure 1 at a

other sole design;

FIG. 3a shows, in perspective, part of two intersecting webs with two roof-shaped projections roughly corresponding to the. Area III in Figure jl,

However, the sole base plate does not work is shown;

FIG. 3b shows, in perspective, a part of a web with a step-shaped projection and

FIG. 4 shows a section along line IV-IV in FIG. 2,

The front soles shown in Figures 1 and 2 consist of one rigid plastic, in the present case z. B. made of hard-adjusted nylon. On the tread 1 forming Solilen plate 2 are both in the embodiment of Figure 1 and in that of Figure 2 approximately at the same distance webs 3 and 4 which extend obliquely to the longitudinal axis of the sole and protrude from the running surface 1 are provided. The bridges 3 or the webs 4 are each parallel to one another, so that, as it were, a diamond pattern on the tread 2 of the sole arises.

For the sake of clarity, the webs 3 and 4 are each only separated by two parallel ones in FIGS. 1 and 2 Lines indicated. In fact, however, three lines should be drawn because the webs 3, 4 - like FIGS. 3a and

309842/0166

3b show - in cross section approximately the shape of an isosceles Triangle.

As shown in particular in FIG. 3a, which roughly shows the detail III of Figure 1, the webs 3, 4 are at least partially between adjacent crossing points 5 increased with the formation of roof-shaped projections 6. These roof-shaped projections each have a blade-like, free end edge 7 so that the projections 6 can serve as gripping elements. In Figures 1 and 2 are the Projections 6 each only schematically through the third line indicated between the two lines characterizing the webs 3, 4.

Both the front sole of FIG. 1 and that of FIG. 2 run approximately along the edge 8 of the sole Further, the webs 3 »4 essentially corresponding web 9» which also has the projections 6 in FIG. 3a in principle corresponding projections 10 is provided. In addition, there is at least one in the toe area of the front sole further web 12 also provided with projections 11 is present.

FIG. 1 shows a front sole which has no bej Special fittings or the like. Is or can be provided. In this sole, the webs 3, 4

309842/0166

protruding projections 6 are provided in three approximately parallel rows 13 arranged at a certain distance from one another. Adjacent projections 6 enclose different angles with the longitudinal axis of the shoe. Preferred the rows of protrusions 13 etv / a can be arranged in the area in which the known sports shoes the thorns are provided.

The exemplary embodiment of FIG. 2 differs from that of FIG. 1 on the one hand in that it has threaded inserts 14 provided support plates 15 for thorns or the like. In the area of the support plates 15, this is the outsole 2 forming plate reinforced. In this thickened area, the threaded insert 14 is cast with a flange 16 or the like (Figure 4). FIG. 4 clearly shows that, around the support plate 15, an edge which ends at the top in a pointed edge 17 Edge ring 18 is provided. The edge 17 of the edge ring 18 lies approximately at the level of the edges 7 of the projections 6. Through cuts 19 is the. Edge ring 18 * in several segments 20 having a certain mutual mobility divided. When used on a suitable floor, a mandrel of suitable design is inserted into the threaded insert 14, particularly suitable dimensions, screwed in. If the use of thorns is undesirable or unfavorable, the threaded insert 14 can be closed blindly by a filler piece not shown in the drawing. Given-

3098 4 2/0166

If so, this filler piece could also be provided on the top with a cutting edge corresponding to the edges 7 and 17, respectively be.

While in the front sole of FIG. 1, the projections 6 in the individual rows 13 each follow one another in a zigzag shape and only one row of such projections is provided in each case, are in the front sole of FIG three also approximately row-shaped areas 21 the projections 6 are arranged so that four projections 6 each enclose a honeycomb recess 22. It arise so, as it were, groups of protrusions with a roughly diamond-shaped plan. This may be in addition to the already exerted a certain suction effect by pressing the projections into the web, which can be particularly beneficial on greasy webs. It also causes the web surface to penetrate between the projections 6 of a diamond-like group a certain cushioning, which is beneficial for the athlete has a beneficial effect during the run.

Of course, the projections 6 and webs 3, 4 do not necessarily have to be, as is shown in FIGS. 3a and 3b have the shape of isosceles triangles in cross section. Furthermore, it is not absolutely necessary that the end faces 23 of the projections 6 essentially lower

309842/0166

"221687

protrude right to the tread 1 of the sole. In particular ;

the end faces 23 can merge into the webs 3, 4 with a rounding.

Another alternative is shown in FIG. 3b, in which, instead of one projection 6, two projections 6a and 6b of different heights are provided , which, however, are each formed like a knife at their free end edge 7a and 7b. Attaching such stepped projections 6a, 6b has the advantage that rolling over the silk edge 7a in the direction of the webs 3, 4 is facilitated due to the smaller width of the cutting edge 7a compared to the cutting edge 7. In addition, a more precise adaptation to different soil hardnesses can be achieved if necessary. Of course, it is not necessary to provide the formation of the projections according to FIG. 3b at all points where projections protrude beyond the webs 3, 4. Rather, it would also be possible to attach the stepped projections 6a, 6b, for example, only in the area of the outer ball in order to facilitate rolling over the outer ball.

In summary, it can thus be stated that the outsole according to the invention, in addition to its low weight characterized by good ground and surface grip on a wide variety of floors.

309842/0166

While in the illustrated embodiments the webs are always in two groups of mutually parallel, Rows running obliquely to the longitudinal axis of the sole were arranged, so that there is a honeycomb formation results in the sole, it can be useful for some areas of application, the webs only transversely to the longitudinal direction of the sole, thus to be provided approximately vertically to the longitudinal axis of the shoe. In this case, of course, there are also the projections not zigzag as in the illustrated embodiments but rather arranged in a row and at a distance from one another.

Furthermore, the sole design according to the invention not only provided for the front sole but also in the heel area, with the height of the roof-shaped Projections in the front sole and heel area untr ·, -.chied-

borrowed can be chosen.

309842/0166

Claims (16)

ft patent (protection) claims 1. Outsole made of mega-elastic plastic for sports shoes, especially for running and jumping competitions, which at least in the front part on the running side, has protruding webs, characterized in that the molded webs (3, 4, 9, 12) at least in some areas with the formation of roof-shaped projections (6, 6a, 6b, 10, 12) as gripping elements, which have blade-like, free end edges (7, 7a, 7b) are raised. 2. Outsole according to claim 1, characterized in that the end edges (7, 7a, 7b) of the roof-shaped Projections (6, 6a, 6b) each enclose different angles in groups with the longitudinal axis of the sole. 3. Outsole according to claim 1 or 2, characterized in that the roof-shaped projections (6a, 6b) below Formation of several front edges protruding differently over the tread (1) of the outsole (2), (7a, 7b) are step-shaped. 30984 2/0186 4. Outsole according to one or more of the preceding Claims, characterized in that the roof-shaped projections (6, 6a, 6b) in several in the sole longitudinal direction spaced apart areas (13, 21) are provided. 5. Outsole according to one or more of the preceding claims, characterized in that the roof-shaped Projections (6, 6a, 6b) are arranged in several rows (13, 21) running transversely to the longitudinal axis of the sole are. 6. outsole according to claim 5, characterized in that the roof-shaped projections (6, 6a, whether) one Row (13, 21) are arranged approximately zigzag. 7. Outsole according to one or more of the preceding claims, characterized in that also approximately along of the edge (8) of the outsole (2) at least one web (9, 12) is provided, which with the formation of Roof-shaped projections (10, 11) arranged at a distance from one another are increased in areas. 8. Outsole according to one or more of the preceding claims, characterized in that on the sole Thorns od. The like. Are replaceably attachable. 309842/0166 9. outsole according to claim 8, characterized in that " that the thorns or the like can be attached in the area of round support plates (15), in the area of which the thickness the outsole (2) is increased. 10. Outsole according to claim 9 »characterized in that that the support plates (15) have a circular edge ring (18), the height of which above the running side (1) of the outsole (2) is approximately that of the roof-shaped projections (6, 6a, 6b, 10, 11). 11. Outsole according to claim 10, characterized in ₉ that the edge ring (18) of the support plates (15) is interrupted several times by recesses (19). 12. Outsole according to one or more of the preceding claims, characterized in that the webs (3, 4, 9, 12) are also roughly triangular in cross-section. 13 · Outsole according to one or more of the preceding Claims, characterized in that the roof-shaped projections (6, 6a, 6b, 10, 11) and / or the webs (3, 4, 9, 12) · cross-sectionally the shape of an isosceles Have triangle. 309842/0186 14. Outsole according to one or more of the preceding
Claims, characterized in that it is made in one piece from hard-set nylon. 15. Outsole according to one or more of claims 1 to 5 and 7 to 14, characterized in that the webs (3, 4) are arranged approximately parallel to one another and transversely to the longitudinal axis of the sole. 16. Outsole according to one or more of claims 1 to 14, characterized in that the webs (3, 4) cross each other and form honeycomb-like, recessed areas (22 ) between them, the roof-shaped projections (6, 6a, 6b; each are arranged between the adjacent crossing points (5) of the webs. 309842/0166