EP2470040B1 - Stud for a sport shoe - Google Patents

Description

The invention relates to a stud for a sports shoe, such as a running, football or golf shoe, which consists of a studded head and a stud foot. The studded head comprises a non-round connecting element and the stud foot a preferably circular opening into which the connecting element for connecting the studded head to the stud foot is pressed. Just by pressing the studded head into the stud foot, a frictional connection of the two stud parts is achieved. The invention also relates to the method for connecting the studded head to the stud foot.

Shoes, especially sports shoes, with studs to give the shoe special properties has long been known. For example, the sprinters have been using spikes for a long time which, depending on the surface on which they are used, have different shapes. The footballers also use cleats that may vary depending on the weather and the terrain of the playing field. Since not for every weather own shoes are kept ready, cleats were developed early, which can be detachably connected to the sole of a shoe, so that the simplest possible change of studs is possible.

From the WO 03/055341 A2 is a sports shoe with a stud known, in which the stud has a locking pin with which the stud is automatically spring-locked in a recess of the sole. The stud can be mounted by hand, while the disassembly of the stud with the aid of a tool by turning the stud is done. The DE 31 34817 A1 describes a connection between the outsole and a gripping element by means of locking elements. The gripping element has at its protruding into the outsole part a substantially radially aligned extension as a locking element which is brought by rotation with a disposed within the outsole counter-detent engaged. In engagement, the locking element engages behind the counter-locking such that the gripping element is connected under pretension with the outsole.

The EP 1 728 448 A1 relates to a stud for a sports shoe. The stud has a connecting element with a radially outwardly projecting connecting studs. In the sole of the sports shoe, an opening is formed, which is shaped so that the connecting element can be inserted with the connecting nubs. At the bottom of the opening is one at least partially circumferential groove formed in the connecting nubs is introduced by the rotation and thereby connects the studs with the shoe. The DE 202 11 809 U1 relates to a stud, which can be clipped into a shoe sole by means of a connecting element or in which the sole is held in that on the connecting element integrally formed connecting lugs can be moved by twisting under formed in the sole mating connecting elements. The US 2003/0106245 A1 relates to a sports shoe with a cleat, wherein the cleat is held in the sole of the sports shoe by means of a clamping device. The clamping device allows a tool-free insertion of the stud in the sole, to remove the stud, the clamping device must be opened by means of a tool. The JP 59 145830 U relates to a stud for a sports shoe. The lug has a connecting element with integrally formed connecting lugs, which engage in grooves after the insertion and twisting of the lug in the sole, whereby the lug is held in the sole.

The object of the invention is to provide a stud for a sports shoe, which is inexpensive to manufacture and easily replaceable. This object is achieved by the tunnel according to claim 1.

The invention relates to a stud for a sports shoe, which comprises a cleat foot with an opening and a studded head with a connecting element. To connect the studded head with the stud foot, the connecting element is pressed into the opening of the studded head. The connecting element has the shape of a non-circular pin having a first diameter and a measured perpendicular thereto second diameter which is smaller than the first diameter, and the stud head is held after the impressions by traction, preferably pure traction, in the stud foot.

The tunnel consists of a studded head and a stud foot. As Stollenfuß while the part of the stud is referred to, which is connected to the sole of the sports shoe or arranged in the sole of the sports shoe, for example, inserted in the manufacture of the sole in the tool and injected. Theoretically, the stud foot can also be subsequently introduced into openings in the shoe sole and, for example, glued or welded there or fastened in another known manner.

The head of the stud is the part of the stud that protrudes from the sole and can be pushed into and pulled out of the stud foot. That is, the Stollenfuß is usually not non-destructive to separate from the sports shoe, while the studded head is replaceable.

According to the invention, the connecting element has a non-circular pin which has a first diameter and a second diameter measured perpendicular to the first diameter, the second diameter being smaller than the first diameter. The pin may for example have an oval circumference, an elliptical or any other peripheral shape. The pin has sections of different cross sections.

According to the invention, the shape of the pin is the same everywhere, that is, there are over the length of the pin seen no sections with different cross-sections. Preferably, the pin is gripped at its lower end to facilitate the insertion of the pin into the opening of the stud foot.

The opening in the stud base is preferably circular, wherein the diameter of the opening corresponds at least substantially to the first diameter of the connecting element.

Preferably, the cleat foot includes a spring which holds the connecting element frictionally in the cleat foot. This is preferably a leaf spring, which is held at least on one side in the cleat foot and extends into the opening in Stollenfuß inside. The spring preferably has a spring head and a spring foot, wherein the spring head has an opening, preferably a substantially circular opening, which has substantially the same diameter as the opening in the cleat foot. The spring is arranged in the stud base such that when the connecting element is pressed into the stud foot, the connecting element is also pressed through the opening of the spring, at least with a longitudinal part section.

The spring has a kink between the spring base and the spring head, so that the spring head protrudes at an angle from the spring foot. When the spring is installed in the stud foot, the spring base is approximately parallel to the outsole, while the spring head of the outsole is angled in the direction of the stud head at an angle between 5 ° and 30 °, preferably by about 10 °. In order to enable this position of the spring, the Stollenfuß has a corresponding receptacle for the spring. The receptacle is formed so that the spring is in the cleat foot can not move horizontally (parallel to the outsole), but the spring head in the vertical direction (perpendicular to the outsole) is movable.

When the connecting element is pressed into the stud base, the crease line of the spring preferably lies transversely to the first diameter, which essentially corresponds to the pressure gauge of the opening in the spring and the opening in the stud foot. When pushing the stud head into the stud foot, the link presses the angled spring head through the opening in the spring head and thereby the spring head in the direction of the outsole. If the spring head is essentially parallel to the outsole, the projection of the hole in the spring head has a substantially circular diameter, so that the connecting element can be pressed through the opening in the spring head. Is the impressions of the studded head finished, the spring head is pressed back in the direction of the outsole due to the implied by the kink spring force, resulting in the clamping of the stud head in the stud foot. If the studded head is now loaded by pressure, the connecting element can be pressed further into the stud foot until the underside of the stud head and the upper side of the stud foot sit against the stop without thereby reducing the retaining force of the spring. If the studded head is loaded in tension, the holding force of the spring increases with increasing tensile force. If the connecting member from the Eindrückposition in a second position, for example, rotated by 90 °, the second, smaller diameter of the connecting element is transverse to the Federknick and the stud head can be pulled out of the stud foot without much effort.

For turning, the connecting element has on its upper side, for example, an engagement for a tool. Preferably, the engagement is a slot in which, for example, a coin can engage, so that the coin forms the tool. Of course, any other input or attack for a tool of the invention is also included. In order to see whether the connecting element is in the first position or in the second position, the outsole and / or the studded head preferably has markers which uniquely identify at least the push-in position. To push the connecting element always in the correct position in the stud foot, the Stollfuß may have on its upper side facing the stud head positioning elements which cooperate with Gegenpositionierungselementen which are formed on the bottom of the stud head facing the stud foot. When the positioning elements and the counterpositioning elements engage, for example, the connecting element is in the push-in position when the above-mentioned markers are in the corresponding position relative to one another. The markers can also serve to indicate the unlocked position of the stud head, that is the position in which the stud head has to be turned in order to be able to pull the stud head out of the stud stud.

The spring is preferably inserted in the stud foot before the connection of the stud foot with the outsole. For this purpose, the cleats foot of several parts, for example, consist of two half-shells that form the stud foot together horizontally. Each of the half-shells can each have a semicircular recess, which together form the opening into which the connecting element can be pressed. In each of the half-shells, a horizontal slot may be formed, in which the spring is received. Preferably, the half-shells can be joined together in a form-fitting manner, before they are inserted into the tool for the outsole and overmolded. For this purpose, each of the half-shells have at least two sections with different outer diameter and a ring which is pushed over one of the sections to hold the two half-shells together. To adjust the half-shells relative to each other and to prevent displacement of the half shells relative to each other when pushing the ring, the half shells may have on the abutting surfaces, for example, plug and mating connector that fix the two half shells during assembly to the extent that the ring pushed easily can be. The inner diameter of the ring corresponds to the outer diameter of one of the sections, preferably the outer diameter of the section with the smaller diameter. The outer diameter of the ring preferably corresponds to the portion of the half-shell with the larger diameter.

The stud foot can also be formed in one piece and the spring can be inserted into the stud foot through a laterally open slot. The spring can be held in its position in the stud foot by a plug which is placed in the slot before connecting the stud foot with the outsole, it can be glued or otherwise secured against slipping, or held by a tool in position and only be fixed in position by connecting it to the outsole. In the one-piece stud foot, the slot may be arranged obliquely in the stud foot, so that the spring does not have to have a kink. The spring in this case preferably has a spring foot which is thicker than the spring head. The slot is dimensioned so that it can hold the spring leg in a form-fitting manner, while the spring head in the same slot, as described above, is movable in the vertical direction. The thickening of the spring foot can be easily achieved for example by bending the spring foot.

The studded head is preferably also formed in several parts. In this case, the studded head may comprise a first studded head part, which forms the running surface of the stud. This tread is adapted to the respective intended use of the stud, or the sports shoe. Thus, in a football boot, the studs are designed to optimally support player movements such as sudden changes of direction, sudden stops or sudden changes in speed, whereby there may be different stud shapes for natural grass, artificial turf, dry ground and rainy ground. The lug for a golf shoe may be designed to give the player a firm footing when hit on wet or wet grass, but at the same time cause no damage upon entering the greens. The first stud head part can be circular, angular, oval or in any desired shape in order to be able to optimally adapt the stud to the respective intended use and / or to achieve, for example, brand-specific design effects.

A second stud head part may comprise the connecting element, preferably the second stud head part and the connecting element are integrally formed. The second cleat head part is preferably rotatably mounted in the first cleat head part, it may for example be positively connected to the first cleat head part. This can be realized by a snap connection in which a circumferential bead formed on the second stud head part snaps into a groove formed on the first stud head part. Preferably, either the bead or the groove is formed circumferentially, particularly preferably the bead and groove are formed circumferentially. However, any other connection that allows the second cleat head portion to be rotatable relative to the first cleat head portion is also included within the scope of the invention.

In order to avoid that the first cleat head part rotates with the second cleat head part, the first cleat head part preferably has positioning elements on its side facing the cleat foot, which engage with counterposition elements formed on the side of the cleat foot facing the cleat head when the connecting element is pressed in. In this case, the positioning elements and the Gegenpositionierungselemente are preferably shaped so that the connecting element is in its delivery state at an engagement of the positioning elements always in the Eindrückposition. From this position, the second cleat head part and thus the connecting element can be rotated to the unlocking position. Before re-inserting the removed stud head in the stud foot then the connecting element can be rotated back to its original position to hold the correct position when pressing. Alternatively, the studded head can also be used in the unlocking position in the stud foot, but must then in With the help of the tool, the claw foot can be turned to reach the position in which it is clamped in the claw foot.

In order to allow the user to press the stud head into the stud foot without having to try it out for a long time, the stud head preferably has marks which at least indicate when the second stud head part is in the push-in position in the first stud head part. Also, the outsole may have marks, so that the user can recognize in which position he must press the stud head into the stud foot, so that the positioning elements and the Gegenpositionierungselemente are at least approximately in the engaged position to each other when pressed.

Figur 1

Erfindungsgemäßer Stollen von der Seite

Figur 2

Erstes Stollenkopfteil gesehen vom Stollenfuß aus

Figur 3

Teile des Stollen der Figur 1 im Schnitt, mit dem Verbindungselement in der Eindrückposition

Figur 4

Teile des Stollen der Figur 1 im Schnitt, mit dem Verbindungselement in der Klemmposition

Figur 5

Stollen nach dem Eindrücken in der Eindrückposition und in der Klemmposition

In the following, the invention will be explained in more detail with reference to an example, here a cleat for a golf shoe. All features shown and described in the figures are within the scope of the invention, which, however, is not limited to the features shown and described. In detail, the figures show:

FIG. 1

Inventive tunnel from the side

FIG. 2

First Stollenkopfteil seen from Stollenfuß

FIG. 3

Parts of the tunnel of the FIG. 1 in section, with the connecting element in the push-in position

FIG. 4

Parts of the tunnel of the FIG. 1 in section, with the connecting element in the clamping position

FIG. 5

Stollen after pressing in the push-in position and in the clamping position

FIG. 1 shows a Ausfühnmgsform the lug 1 of the invention for a golf shoe in the side view. Evident is the studded head 2, or in the view shown only the first studded head portion 21, which is crown-shaped. The studded head 2 is seated on the stud foot 3, which has sections 31, 32, 33, 34, 35 of different outside diameters and which is fastened as far as the dashed line 4 in the outsole of a golf shoe, not shown. Preferably, it is injected into the outsole, the finished stud foot. 3 inserted into the tool for the outsole and is preferably injected in the in-tooling process. It is also conceivable to subsequently enter the stud foot 3 into prepared openings in the outsole and to connect it to the sole by means of an adhesive or other methods. Preferably, the connection should be cohesive, so that a removal of the stud foot 3 from the outsole is not possible nondestructive.

The FIG. 2 shows a part of the stud head 2 seen from the stud foot 3 from. It is the first cleat head part 21, which forms the running surface of the cleat. On its underside, the first cleat head part 21 has a circumferential positioning element 5 which fixes the position of the cleat foot 3 to the cleat head 2 with a counterpositioning element (not shown) on the upper side of the cleat foot 3. As can be seen in the embodiment of the positioning element 5, the studded head 2 can only in two by 180 ° twisted positions are placed on the stud foot 2 so that the position elements 5 and the non-illustrated counterposition elements engage with each other. In the middle of the first studded head portion, an opening 6 is formed, which has a coupling part 7 circumferentially. Through this opening 6, the second cleat head part 22, not shown, can be inserted with the connecting element 8, the second cleat head part 22 having at its end facing away from the cleat foot 3 a counter-coupling part which cooperates with the coupling part 7 so that the second cleat head part 22 relative to the first cleat head part 21 can be rotated. The coupling part 7 may for example be a groove into which a bead formed on the second stud head part 22 can snap.

FIG. 3 shows the stud 1 in a section before pressing the studded head 2 in the stud foot 3. The studded head 2 has the first studded head portion 21 and the rotatable mounted therein second studded head portion 22 with the connecting element 8. The connecting element 8 has the shape of a non-circular pin with a first diameter D1, which in the FIG. 3 is perpendicular to the sectional plane, and a second diameter D2, which is smaller than the first diameter D1. At the bottom of the studded head 2, and the first studded head portion 21, the positioning element 5 can be seen.

The cleat foot 3 has sections 31, 32, 33, 34, 35 of different outer diameter. The section 31 is formed by the counterposition element or the Gegenpositionierungselemente and the upper edge of the portion 33 is approximately flat with the outsole, not shown, when the stud foot 3 is installed in the sole.

The stud foot. 3 consists in the embodiment shown of two half-shells formed in mirror image, one of which is shown. The circles 9 and 10 are for connector elements 9, 10, with which the two half-shells can be put together. The stud base has a central opening in the form of a passage or blind hole 12 into which the connecting element 8 is pressed when the studded head 2 is connected to the stud foot 3. In approximately in the axial center of the stud foot 3, a slot 13 is introduced, which here has a wedge shape. In the slot there is a spring 14 with a spring foot 141 and a spring head 142 which, not visible in the figure, has an opening 143 which has substantially the same pressure gauge as the hole 12. The spring foot 141 is connected to the spring head 142 in a kink 144, wherein the kink 144 is parallel to the diameter D1, that is perpendicular to the cutting plane, the spring foot 141 extends approximately parallel to the outsole, not shown, and the spring head 142 at an angle from about 20 ° in the direction of the stud head 2 shows. The slot 13 is formed so that the spring 14 can not move in the horizontal direction, that is parallel to the outsole, the spring head 142 but in the direction perpendicular to the outsole has room to move.

As the last shows the FIG. 3 a ring 15. This ring 15 is pushed at assembled cleats foot 3 over the section 34 and thereby holds the two half-shells of the cleats foot 3 together form fit.

The FIG. 4 shows the same parts as the FIG. 3 with the exception that the connecting element 8 has been rotated by 90 °, so that now the diameter D1 is parallel to the cutting plane. Thus, the kink now runs parallel to the diameter D2 of the connecting element 8 and the diameter D1, which substantially corresponds to the inner diameter of the hole 12 and the diameter of the spring opening 143, is now in the reduced by the employment of the spring 14 projection of the diameter of the spring opening 143 clamped. In this clamping position of the stud head 2 can be moved even further in the hole 12 upon the occurrence of compressive forces in the direction of the stud foot 3, however, attack forces in the opposite direction on the stud head 2, the spring 14 is pressed firmly against the connecting element 8, the means the holding force of the spring 14 increases. Pulling out the stud head 2 from the stud foot 3 is no longer possible in this position.

The FIG. 5 shows the stud 1 with the stud head 2 in the first figure in the unlocking position in which he is pressed into the stud foot 3 but not held clamped. In this position, the studded head 2 can be pulled out of the stud foot 3 without much effort. In the part of the second stud portion 22, which is rotatably mounted in the opening 6 of the first studded head portion 21, a slot 16 for engagement of a tool, not shown, which extends parallel to the cutting plane. The diameter D1 of the connecting element 8 is perpendicular to the cutting plane. The ring 15 is in the position located in which he holds the two half-shells of Stollenfußes 3 form-fitting together.

In the second illustration, the second studded head part 22 is in the push-in position, in which the diameter D1 of the connecting element 8 runs parallel to the cutting plane and thus transversely to the bending line 144 of the spring 14. The Stollenkopf 2 is now firmly anchored in Stollenfuß 3 by pure traction. From this position, the second cleat head part 22 can be rotated by 90 ° with the tool, whereby then the slot 16 is now perpendicular to the cutting plane in the position shown in the first figure, in which the cleat head 2 can be pulled out of the cleat foot 3.

LIST OF REFERENCE NUMBERS

1

stollen

2

Stollen head

21

first cleat head part

22

second cleat head part

3

cleat

31

section

32

section

33

section

34

section

35

section

4

Outsole level

5

positioner

6

opening

7

coupling part

8th

connecting element

9

Connector element

10

Connector element

12

L5och

13

slot

14

feather

141

spring base

142

feather

143

spring opening

144

Federknick, kink

15

ring

16

Tool slot, slot

D1

first diameter

D2

second diameter

Claims (15)

1. A stud for a sports shoe, comprising:

   a) a stud base (3) having an opening (6); and

   b) a stud tip (2) having a connecting element (8), wherein

   c) in order to connect the stud tip (2) to the stud base (3), the connecting element (8) can be pressed into the opening (6), wherein

   d) the connecting element (8) has the shape of a pin which exhibits a first diameter (D1) and a second diameter (D2), measured perpendicular to the first diameter (D1), which is smaller than the first diameter (D1),

   characterised in that

   e) the pin is a non-circular pin which exhibits the same cross-sections over its entire axial length and is held in the stud base (3) by a force fit once the connecting element (8) has been pressed into the opening (6).
2. The stud according to Claim 1, characterised in that the stud base (3) comprises a spring (14), and the connecting element (8) is held in the stud base (3) by the spring (14).
3. The stud according to the preceding claim, characterised in that the spring (14), preferably a leaf spring, comprises a spring base (141) and a spring tip (142) and a spring opening (143) in the spring tip (142) which has substantially the same diameter as the opening (6), wherein the connecting element (8) can also be pressed through the spring opening (143) when it is pressed into the opening (6).
4. The stud according to the preceding claim, characterised in that the spring tip (142) protrudes from the spring base (141) at an angle along a break line (144), or the spring (14) is arranged in the stud base (3) at an angle of more than 0° and less than 90° with respect to a longitudinal axis of the connecting element (8).
5. The stud according to the preceding claim, characterised in that when the connecting element (8) is pressed in, the diameter (D1) points substantially perpendicular to the break line (144) of the spring (14).
6. The stud according to any one of the preceding claims and comprising at least one of the following features:

   i. the stud base (3) is designed in a number of parts;

   ii. the stud base (3) comprises a first half-shell and a second half-shell;

   iii. each of the half-shells comprises at least two sections (31, 32, 33, 34, 35) exhibiting different diameters.
7. The stud according to the preceding claim, characterised in that the two half-shells are held together in a positive fit by a ring (15), wherein the inner diameter of the ring (15) corresponds to one of the outer diameters of the sections (31, 32, 33, 34, 35).
8. The stud according to any one of the preceding two claims, characterised in that each of the half-shells comprises a slot (13) for accommodating one end of the spring (14), wherein the slot (13) for accommodating the spring-base end preferably has a different shape to the slot (13) for accommodating the spring-tip end.
9. The stud according to any one of the preceding claims, characterised in that the stud tip (2) comprises at least a first stud tip part (21) and a second stud tip part (22) which are connected to each other in a positive fit, wherein the second stud tip part (22) comprises the connecting element (8) and is rotationally mounted in the first stud tip part (21) and/or wherein the first stud tip part (21) for example defines the outer circumference of the stud (1) and forms the running surface of the stud (1).
10. The stud according to any one of the preceding eight claims in conjunction with Claim 2, characterised in that the spring (14) comprises a spring opening (143), the connecting element (8) can also be pressed through the spring opening (143) when it is pressed into the opening (6) of the stud base (3), and the spring (14) presses laterally against the connecting element (8) in the region of the spring opening (143) and thus holds it in a clamping force.
11. The stud according to the preceding claim, characterised in that a projection surface of the spring opening (143) exhibits an extent in a plane which points perpendicular to a pressing-in direction of the connecting element (8), and in that when the connecting element (8) is pressed into the spring opening (143), the spring (14) is elastically deformed and the extent of the projection surface of the spring opening (143) is thus enlarged.
12. The stud according to any one of the preceding two claims, characterised in that an elastic restoring force of the spring (14) generates the force fit between the stud base (3) and the connecting element (8) which protrudes through the spring opening (143), and the clamping force of the spring (14) increases when a load is applied to the connecting element (8) in a direction opposite to the pressing-in direction of the connecting element (8).
13. The stud according to any one of the preceding three claims, characterised in that: the connecting element (8) can be rotated in the stud base (3) relative to the spring (14); the spring (14) holds the connecting element (8), clamped, in a first rotational angular position; and the connecting element (8) can be removed, counter to the pressing-in direction, from the stud base (3) in a second rotational angular position.
14. The stud according to any one of the preceding three claims, characterised in that the projection surface of the spring opening (143) exhibits a first extent which is equal to or greater than the first diameter (D1) of the connecting part (8) in the region of the spring opening (143), and a second extent which is equal to or greater than the second diameter (D2) of the connecting part (8) in the region of the spring opening (143).
15. The stud according to the preceding claim, characterised in that the first diameter (D1) of the connecting element (8) points substantially parallel to the second extent of the projection surface of the spring opening (143) when the connecting part (8) is pressed in the pressing-in direction, and in that the first diameter (D1) of the connecting element (8) points substantially transverse to the second extent of the projection surface of the spring opening (143) when it is removed counter to the pressing-in direction.

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