EP1617920B1 - Snow sliding device in particular a carving ski - Google Patents

Abstract

The esp. carving ski has a running face (10) of three sections, which is waisted in longitudinal direction. In the front (4) and/or the rear section (8), the running face is overlapped by an additional running face section (24,28). The additional section, and esp. the central running face section (6), define a second running face (20) with a second waist section with considerably larger radius of curvature. Main running face and additional running face sections are adapted to each other, so that with a change in the carving angle there is a corresponding change in the active radius of the waist section defined by the running faces. Both faces have side steel edges (17,27,29) to define a 'side cut'.

Description

The invention relates to a snow gliding device, in particular a carving ski, according to the preamble of claim 1.

Such a snow gliding device is from the EP 1 543 868 A1 known. For some years, so-called. Carvingski have been enforced, which are characterized by a pronounced in the longitudinal direction lines. The advantage of this waisted ski is that when ankles the ski describes a curve along an active radius defined by the sidecut. The stronger a ski is waisted, the tighter theoretically a curve can be driven. Skis with strong sidecut are therefore very manoeuvrable, but tend when driving straight ahead to become very restless and unstable. Conversely, a slightly waisted ski directionally stable when driving straight ahead, but has a much lower maneuverability and is therefore more difficult to handle when cornering.

The conventional ski, especially the carving ski has revolutionized the cornering of alpine skiing because of its sidecut, but it has the disadvantage that the variation of curves with different radii is only possible for experienced skiers. Especially with strongly waisted skis, a slight angling of the ski already causes the initiation of the cornering. Especially with inexperienced skiers leads this abrupt change of direction of the more common to falls with no less dire consequences.

Some publications are known from the prior art, which seek to solve the above-mentioned problems.

This is how the German utility model describes DE 296 05 583 U1 a so-called Mehrkantenski. This is characterized in that its sliding surface consists of one or more stages, wherein at each step transition, a steel edge can be attached. The biggest advantage of this multi-edge ski is that it can be integrated with the same length of the ski a multiple of metal edge length. In addition, it is also possible to achieve an improved maneuverability or directional stability by means of a different sidecut of the individual steps of the ski. Thus, for example, DE 583 describes fitting the lowermost step with little precision, since it produces good straight-line stability, and then forms the upper steps in an increasingly waisted shape, since they get more contact with the snow when edge-up, and then one due to their waisted shape better maneuverability of the ski condition. A disadvantage of this design is that over the entire ski length different edges with different sidecut extend. This leads to a high weight, increased resistance in straight-ahead as well as cornering and especially in a two-stage structure of the ski back to the problem of abrupt change of direction. Since depending on the upstand another edge acts as a direction guide, formed in this embodiment, no continuous intermediate area, which allows a different Fahrradius depending on the upstand.

The German patent application DE 101 07 905 A1 also describes a carving ski, which receives an increased tread to solve the above-mentioned problem, whose outer edges are parallel to the center of the longitudinal axis of the ski. This new extra tread is slightly narrower than the waist of the original tread. The ski described here is therefore also constructed in several stages and therefore has the same advantages as they can already be found in DE '583. Accordingly, this disclosure naturally also has the above-mentioned disadvantages.

In the already mentioned EP 1 543 868 A1 is described a snow gliding device, in particular a carving ski, which is developed so that it has good maneuverability, even at high speeds, easy to control straight ahead. In addition, it is ensured that the ski can pass substantially continuously variable curve radii.

Based on the above-discussed prior art, the present invention has the object, a snow gliding device, in particular a carving ski, of the type mentioned in such a way that the response to the so-called Ankanten is adjustable by the user.

This object is achieved by a snow gliding device according to claim 1.

Due to the fact that the separate tread strips can be moved out more or less far out of the base surface, the size of the elevation of these tread strips relative to the base surface can be adjusted. This gives a correspondingly changed response to the so-called Ankanten.

• Dadurch, dass die zweite Taillierung, mit im wesentlichen größeren Krümmungsradius, durch einen Teil der Basislauffläche und durch wenigstens einen zusätzlichen Laufflächenabschnitt gebildet wird, erhält man einen Ski mit zwei Taillierungen, die jede für sich einen Grenzradius definieren. Im Vergleich zu den eingangs genannten Druckschriften mit einem mehrstufigen Skiaufbau, ist das hier vorgeschlagene Schneegleitgerät um einiges leichter. Darüber hinaus, führt die Verwendung einer gemeinsam genutzten Basislauffläche im mittleren Bereich des Schneegleitgerätes zu einer optimierten Lauffläche, da hier keinerlei Kanten und Abstufungen dem Gleiten hindernd entgegenstehen. Die Ausbildung der zweiten Taillierung mit einem, im Vergleich zur Taillierung der Basislauffläche - im folgenden Basistaillierung genannt - im wesentlichen größeren Krümmungsradius, führt dazu, dass bei einem nicht angekanteten Ski, dieser einen wesentlich verbesserten Geradeauslauf aufweist.
• Beim Ankanten des Ski greift dann zunehmend die zweite Taillierung, wobei sich hier ein Mischbereich ausbildet. Je nach Aufkantwinkel des Ski bildet sich eine aktive Kante aus, die den aktiven, d.h. wirksamen Radius des Ski definiert. Somit erreicht man bei vorliegender Ausführungsform ein Schneegleitgerät, insbesondere einen Ski bzw. Carvingski, der nicht durch seine feste Seitengeometrie begrenzt und dadurch mehr oder weniger für kurze oder lange Schwünge geeignet ist, sondern ein Schneegleitgerät, das je nach Aufkantwinkel einen stufenlos veränderbaren Radius durchfahren kann. Folglich ist mit diesem Schneegleitgerät sowohl das Carven, d.h. das Fahren auf der Kante, von kurzen als auch von langen Schwüngen möglich. Durch den sukzessiven Übergang von zweiter Taillierung auf die Basistaillierung - je nach Aufkantwinkel des Ski - wird darüber hinaus ein "Servoeffekt" bzgl. der Skiführung und des Steuerverhaltens geschaffen. Beim Aufkanten des Ski erfolgt nicht eine abrupte Richtungsänderung, sondern ein allmähliches Herantasten an einen maximalen Kurvenradius, der durch die Basistaillierung begrenzt ist. Somit ist bei diesem Schneegleitgerät auch das plötzliche Verkanten kein Gefahrenpunkt mehr, da beim Aufkanten des Ski die Richtungsänderung allmählich und nicht abrupt erfolgt.
• Da mit zunehmendem Aufkantwinkel der aktive Radius entsprechend zunehmend kleiner wird, ist es dem Anwender möglich, kontinuierlich den Kurvenradius zu verändern. Dabei kann man davon ausgehen, dass üblicherweise der aktive Radius bei einem Aufkantwinkel von etwa 0° maximal und bei einem Aufkantwinkel von wenigstens etwa 8-12°, insbesondere 10°, minimal ist. Natürlich ist es auch hier denkbar, Skimodelle nach Bereichen zu staffeln, um so beispielsweise einen Slalomski zu definieren, dessen minimaler und maximaler Radius unter dem eines Abfahrtski liegt, der üblicherweise besonders große Kurvenradien erfordert.
• Das Kurvenverhalten bzw. der Geradeauslauf des erfindungsgemäßen Ski wird dabei im wesentlichen durch die Ausbildung der verschiedenen Taillierungen definiert. Es hat sich dabei als vorteilhaft erwiesen, die Taillierungen im wesentlichen aus einem oder mehreren konstruktiv aufeinander abgestimmten Kreisbögen zu bilden. Aus empirischen Erfahrungen hat sich gezeigt, dass dies ein geeignetes Mittel ist, die Fahreigenschaften eines Schneegleitgerätes zu steuern. Auch die Verwendung von stetigen Kurvenradien ist eine Möglichkeit, eine Taillierung zu schaffen, die zu besonders positiven Skieigenschaften führt. Die Ausbildung der Basistaillierung und/oder der zweiten Taillierung derart, dass der Krümmungsradius vom vorderen Bereich und/oder vom hinteren Bereich zum mittleren Bereich des Schneegleitgerätes abnimmt, führt zu einem Ski mit ausgeprägten "Carver"-Eigenschaften. Ein derartiger Ski folgt beim Ankanten exakt dieser Taillierung. Durch eine Kombination der Basis- und der zweiten Taillierung bildet sich also ein Carvingski aus, der durch einen maximalen und durch einen minimalen Kurvenradius begrenzt ist, wobei sich dazwischen ein Mischbereich ausbildet, der das Durchfahren nahezu jeden gewünschten Kurvenradius ermöglicht.
• Bildet man nun die zweite Taillierung mit einem im wesentlichen konstanten Krümmungsradius aus, hat das zur Folge, dass der Ski - wenn er nicht angekantet ist - einen exakten Geradeauslauf aufweist, wobei die Gefahr des Verschneidens minimiert wird. Im alpinen Skisport stellt eine derartige Ausbildungsform die Kombination eines herkömmlichen Alpinski mit einem Carvingski dar, da hier die Wendigkeit des Carvers mit dem exakten und sicheren Geradeauslauf des herkömmlichen Alpinski kombiniert werden. Nebenbei sei erwähnt, dass es natürlich auch möglich ist, mehrere überlagernde Laufflächenabschnitte übereinander zu verwenden, so dass sich weitere zusätzliche Taillierungen drei, vier und so weiter ergeben, die beispielsweise den Kantengriff beim Kurvenfahren zusätzlich verbessern würden.
• Um exaktes Kurvenfahren zu erzielen, ist es sinnvoll, die Basislauffläche sowie die Laufflächenabschnitte, die diese überlagern, seitlich durch Stahlkanten oder vergleichbare Kanten zu begrenzen, so dass diese einen entsprechenden "Side-cut" definieren. Natürlich ist es denkbar, je nach geforderten Gleiteigenschaften oder Anwendungsgebieten des Ski, sowohl unterschiedliche Kantenformen als auch Materialien zu verwenden. Auch kann es sinnvoll sein, lediglich die Basislauffläche mit Stahlkanten zu begrenzen und die überlagernden Laufflächenabschnitte lediglich durch Kunststoffbegrenzungen zu verstärken. Zudem sei hier erwähnt, dass natürlich auch die Ausbildung von Spurrillen, wie sie aus dem Stand der Technik bekannt sind, ihre Anwendung finden können, um die Fahreigenschaften des Ski zu beeinflussen.
• Eine vielseitige Anwendbarkeit des Schneegleitgerätes stellt die Ausbildung der überlagernden Laufflächenabschnitte derart dar, dass sie lösbar an der Laufflächenseite des Schneegleitgerätes befestigt sind. Diese Befestigung kann durch von der Skioberseite her betätigbare Befestigungsschrauben, durch Schnellverschlussclips oder auch durch Nut- und Federkonstruktionen erfolgen. Der Vorteil einer lösbaren Befestigung liegt in der Auswechselbarkeit der überlagernden Laufflächenabschnitte je nach Bedarf. So ist es beispielsweise denkbar, Laufflächenabschnitte am Ski zu befestigen, die dem Ski eine stärkere zweite Taillierung verschaffen. Dies würde den Ski besonders wendig machen und ihm einen sehr extremen Minimalradius verschaffen. Ist dagegen ein Ski mit besonders stabilem Geradeauslauf gewünscht, kann durch Austauschen der überlagernden Laufflächenabschnitte eine dahingehende Anpassung erfolgen. Indem man Laufflächenabschnitte einsetzt, die dem Ski eine geringere zweite Taillierung verschaffen, führt dies zu einem stabilen Geradeauslauf. Es ist natürlich auch möglich, die Laufflächenabschnitte sowohl an sich veränderte Schneebedingungen anzupassen als auch Laufflächenabschnitte zur Verfügung zu stellen, die bei Verschleiß einfach gegen neue Laufflächenabschnitte ausgetauscht werden.

By the way, all the advantages of the construction after the EP 1 543 868 A1 maintained. This means the following:

• Characterized in that the second sidecut, with a substantially larger radius of curvature, is formed by a part of the base tread and by at least one additional tread portion, to obtain a ski with two side pieces, each of which defines a limit radius. Compared to the above-mentioned documents with a multi-stage ski structure, the snow slipper proposed here is much easier. In addition, the use of a shared base tread in the central region of the snow gliding device leads to an optimized tread, as there are no edges and gradients to prevent the gliding. The formation of the second sidecut with a, compared to the sidecut of the base tread - in the following Basistaillierung called - substantially larger radius of curvature, resulting in a not folded ski, this has a much improved directional stability.
• When Ankanten the ski then increasingly engages the second sidecut, here forms a mixing area. Depending on the upright angle of the ski, an active edge is formed, which defines the active, ie effective radius of the ski. Thus, in the present embodiment, a snow gliding device, in particular a ski or carving ski, which is not limited by its fixed side geometry and thereby more or less suitable for short or long turns, but a snow gliding device, which can pass through a continuously variable radius depending on the upright angle , Consequently, with this snow glider both the carving, ie Driving on the edge, possible from short as well as long turns. Due to the successive transition from the second sidecut to the base waist - depending on the upright angle of the ski - a "servo effect" regarding the ski guidance and the control behavior is also created. When the ski is raised, it is not an abrupt change in direction but a gradual approach to a maximum radius of curvature that is limited by the base waist. Thus, in this snow glider and the sudden tilting is no longer a danger point, since when the ski edges up the direction change is gradual and not abrupt.
• As the active radius becomes increasingly smaller with increasing upstand angle, it is possible for the user to continuously change the curve radius. It can be assumed that the active radius is usually at a Aufkantwinkel of about 0 ° maximum and at a Aufkantwinkel of at least about 8-12 °, in particular 10 °, minimal. Of course, it is also conceivable to stagger ski models by areas, for example, to define a slalom ski whose minimum and maximum radius is below that of a downhill ski, which usually requires particularly large curve radii.
• The cornering or the straight-line running of the ski according to the invention is defined essentially by the formation of the different sidecutouts. It has proven to be advantageous to form the waistings essentially of one or more structurally coordinated circular arcs. Empirical experience has shown that this is a suitable means of controlling the driving characteristics of a snow gliding device. The use of continuous curve radii is also a way to create a sidecut that leads to particularly positive ski characteristics. The formation of the base waist and / or the second sidecut such that the radius of curvature decreases from the front region and / or the rear region to the central region of the snow gliding device leads to a ski with pronounced "carver" properties. Such a ski follows when Ankanten exactly this sidecut. By a combination of the base and the second sidecut thus forms a carving ski, which is limited by a maximum and by a minimum radius of curvature, with a mixing area forms between them, which allows driving through almost any desired radius of curvature.
• If you now form the second sidecut with a substantially constant radius of curvature, this has the consequence that the ski - if he did not tilted is - has an exact straight-ahead, whereby the risk of blending is minimized. In alpine skiing, such a form of training is the combination of a conventional alpine ski with a carving ski, since the maneuverability of the carver is combined with the exact and safe straight-line running of conventional alpine skiing. Incidentally, it should be mentioned that it is of course also possible to use several overlapping tread portions above each other, so that there are additional additional waistings three, four, and so on, which would further improve, for example, the edge grip when cornering.
• To achieve precise cornering, it makes sense to limit the base tread and the tread portions that overlay them laterally by steel edges or comparable edges, so that they define a corresponding "side-cut". Of course, it is conceivable, depending on the required sliding properties or application areas of the ski, to use both different edge shapes and materials. It may also be useful to limit only the base tread with steel edges and reinforce the overlapping tread sections only by plastic boundaries. In addition, it should be mentioned here that, of course, the formation of ruts, as they are known from the prior art, can find their application in order to influence the driving characteristics of the ski.
• A versatile applicability of the snow gliding device is the formation of the overlapping tread portions such that they are releasably secured to the tread side of the snow gliding device. This attachment can be carried out by the Skioberseite forth operable mounting screws, by quick release clips or by tongue and groove constructions. The advantage of a releasable attachment is the interchangeability of overlapping tread sections as needed. So it is conceivable, for example, tread sections to attach to the ski, which give the ski a stronger second sidecut. This would make the ski particularly agile and give it a very extreme minimum radius. If, on the other hand, a ski with a particularly stable directional stability is desired, this can be done by replacing the overlapping tread portions. By using tread sections that give the ski a lower second waist, this leads to a stable straight-line. Of course, it is also possible to adapt the tread sections both to changing snow conditions as well as tread sections available which are easily replaced by new tread sections when worn.

It is also advantageous to fasten the overlapping tread portions with the interposition of elastic elements, in particular one, in particular shock-absorbing, elastomer layer on the ski. This elastic storage causes a damping of the ski and thus increases the controllability and ride comfort. Of course, it is also conceivable to form this intermediate layer not only as an elastic intermediate layer, but also to supplement it with thermoplastic elements which, depending on the ambient temperature, cause a changed ski stiffness.

Further embodiments of the invention will become apparent from the dependent claims.

Fig. 1

eine Ausführungsform des Schneegleitgeräts gemäß der EP 1 543 868 A1 zur Erläuterung der Grundidee, von der die erfindungsgemäße Weiterbildung ausgeht, in einer Ansicht von unten;

Fig. 2

eine Seitenansicht der Ausführungsform nach Fig. 1;

Fig. 3-5

die Ausbildung einer aktiven Kante am Ausführungsbeispiel nach Fig. 1 in Abhängigkeit des Aufkantwinkels in einer schematischen Ansicht von unten;

Fig. 6

eine Ausführungsform eines erfindungsgemäß weitergebildeten Ski mit kufenförmigen Laufbelag-Einlagen in perspektivischer Ansicht auf den Laufbelag von vorne; und

Fig. 7

einen Teil der Ausführungsform gemäß Fig. 6 in perspektivischer Seiten-Schrägansicht.

The invention will be described with reference to an embodiment which will be explained in more detail with reference to the drawings. Hereby show:

Fig. 1

an embodiment of the snow gliding device according to the EP 1 543 868 A1 to explain the basic idea, from which the development of the invention proceeds, in a view from below;

Fig. 2

a side view of the embodiment according to Fig. 1 ;

Fig. 3-5

the formation of an active edge in the embodiment according to Fig. 1 as a function of the Aufkantwinkels in a schematic view from below;

Fig. 6

an embodiment of a further developed according to the invention skis with skid-shaped tread inserts in a perspective view of the tread from the front; and

Fig. 7

a part of the embodiment according to Fig. 6 in perspective side oblique view.

In the following description, the same reference numerals are used for identical and equivalent parts.

Fig. 1 shows a snow glider or a ski according to the EP 1 543 868 A1 in a view from below. This ski 1 comprises a front portion 4, a central portion 6 and a rear portion 8. About these three areas (4, 6, 8) extends one

Base tread 10. The ski 1 shown here is a typical carving ski with a pronounced base detailing 12. Such a sidecut 12 allows the passage of certain curve radii by the angling of the ski about its longitudinal axis. In order not to lose the necessary traction and longitudinal guidance in this cornering, the ski, as is generally known from the prior art, steel edges 17, 17 'on. In addition, this is also known from the prior art, the ski 1 in the front region 4 comprises a blade 5 (see Fig. 2 ). According to the invention, the illustrated ski 1 in the front region 4 and in the rear region 8 each comprise an additional superposed tread portion 24 or 28. This tread portion is in this case (see Fig. 2 ) fastened with fastening means, in particular screws on the base tread of the ski 1 on the tread side 2. In Fig. 1 it is clear that these overlapping tread portions 24; 28 are narrower than the base tread 10. In addition, the radius of curvature of these tread portions 24; 28 in the corresponding area less than the radius of curvature of the base waist 12 of the base tread 10. To ensure good sliding properties are the overlapping tread portions 24; 28 formed so that between the base tread 10 in the central region 6 of the ski 1 and the overlapping tread portions 24; 28 there is a tangential transition.

In Fig. 2 it can be seen that the overlapping tread portions 24; 28 can be lifted out of the base tread 10 in the front area 4 and in the rear area 8. These elevations 26; 26 'allow the adaptation of the response of the ski 1. The larger the elevation 26; 26 ', the stronger the ski must be edged so that the steel edges 17, 27, 29 and 17', 27 ', 29' act as leading edges, ie active edges. On the leadership behavior of these edges and on the so-called active edge is in the Fig. 3-5 discussed in more detail.

In the Fig. 2 illustrated fasteners 40, 40 'allow the releasable attachment of the overlapping tread portions 24; 28 on the ski 1. Thus, depending on the desired ski behavior or environmental conditions, ie straight running, maneuverability, temperature conditions, etc., the overlapping tread portions 24; 28 replaced and replaced by others. Of course it is also conceivable that Ski 1 only to be provided in the front area 4 with a superimposed tread portion 24, if desired, or to superimpose this portion 24 by at least one further section. The same naturally also applies to the rear region 8. Moreover, it is conceivable to use the transition region 34 or 38 (shown in FIG Fig. 1 ) also subdivide the base tread 10 into sections so that, for example, the base tread 10 can be releasably secured to the ski 1 in the central region 6. This allows them to be replaced to possibly adapt to changing snow conditions or to post-processing.

The Fig. 3-5 At a Aufkantwinkel α of 0 °, the second sidecut 22 of the ski 1 serves as a guide. This second sidecut 22 continues, as in Fig. 3 can be seen from the base detailing 12 in the central region 6 of the ski 1 and the second sidecut 22 of the overlapping tread portions 24; 28 together. At a Aufkantwinkel α of about 0 ° the ski serves the second sidecut 22 as a guide and causes due to the very small curvature stable straight running.

Will now as in the Fig. 4-5 can be seen, the Aufkantwinkel increased α, which means that the skier ankantet the ski over the longitudinal axis, there is a change in the active edge. At a Aufkantwinkel α of about 0 °, the active edge is formed by the sidecut 2. At a Aufkantwinkel of about 10 ° and larger, the base beading 12 forms the active edge. As in the FIGS. 3 and 5 visible, rejects the active edge Fig. 3 , formed by the central region 6 of the base insert 12 and the areas of the waisting of the overlapping tread portions 24, 28 in the front region 4 and in the rear region 8, a much smaller radius of curvature than the active edge in Fig. 5 , which is formed only by the base detail 12. This has the consequence that at a Aufkantwinkel α of at least 10 °, a minimum radius can be driven, so the ski is curve-oriented.

The mixing region, that is to say the region with an upright angle α between 0 ° and approximately 10 °, is shown schematically in FIG Fig. 4 shown. Here it is apparent that, depending on the upright angle α, the active edge varies. If the Aufkantwinkel a larger becomes the active edge in the front and in the rear area 4; 8 increasingly formed by the base detailing. If it is smaller, serves the edge of the overlapping tread portions 24, 28 in these areas as a guide. Consequently, the ski 1 according to the invention does not have, as is known from the prior art, essentially only one fixed radius of curvature, but makes possible the almost infinitely variable variation of the radius of curvature within the limit radii defined by the base waist 12 and in FIG Fig. 3 shown mixed second sidecut 22 are defined. Thus, the ski according to the invention is a snow gliding device, which is much more versatile, user-friendly and easier to control due to its novel "three-dimensional" tread design.

In a particularly preferred embodiment, which is claimed independent of the construction described above as essential to the invention, the overlaying tread portions 24, 28 each runner-like, in particular in the form of separately inserted in the base tread tread 61, 62 are formed. In the Fig. 6 and 7 the front area of such a ski is shown. In a further embodiment, these separate tread strips 61, 62 should be able to be moved out of the base tread 10 either stepwise or continuously, in particular in such a way that they extend out of the base tread 10 approximately wedge-shaped forwards (this applies to the front tread strips) or extend backwards (this applies to the rear tread strips).

For this purpose, adjusting screws 63 can be assigned to the tread strip, by means of which the tread strips 61, 62 are movable more or less far beyond the base tread. In this case, each individual tread strip to be assigned a separate screw, so that the individual tread strips can be individually "twisted out" more or less from the base tread according to the wishes of the user. Preferably, however, the front and rear tread strips are each common Assigned screws. According to the FIGS. 6 and 7 are at the front (the same also applies to the rear) each have two separate approximately parallel to each other extending tread strips 61, 62, which are either individually or jointly adjustable.

Driving tests have shown that it is advantageous if the separate tread strips 61, 62 between 0 mm to max. about 3.0 mm, in particular about 2.5 mm beyond the base tread 10 are movable. The "side-cut" of the overlapping tread portions 61, 62 is of course not changed by the adjustment. Only the so-called "Aufkantwinkel" can be influenced by the mentioned screws 63, i. the angle from which the outer edge 29 or 29 'of the tread strip 61, 62 acts. With individual adjustment of the tread strips 61, 62, the Aufkantwinkel can be set differently inside and outside.

Above all, the last illustrated embodiment also allows the provision of the tread strips in the base surface in such a way that they terminate flush with the base surface. This allows the user to set a conventional tread.

In Fig. 7 is the adjustment of the additionally inserted runner-like tread strips 61, 62 opposite to the base tread 10 with the double arrows 64, 65 indicated. For this purpose, the adjusting screw 63 must be rotated either to the left or to the right according to the double arrow 66. According to the first embodiment, the additionally inserted skid-shaped tread strips 61, 62 each have steel edges 29, 29 'on the outside (see Fig. 6 ). In Fig. 6 is the support of the actuatable from the ski deck forth screw 63 on the skiinneren side of the tread strips 61, 62 each identified by the reference numeral 67.

It should be noted at this point that all of the above-described parts, taken alone and in any combination, especially those in the drawings shown details are claimed as essential to the invention. Variations thereof are familiar to the person skilled in the art.

Reference numerals:

1

Snow glider, or ski

2

Tread face

3

top

4

front area

5

shovel

6

middle area

8th

the backstage area

10

Base tread

12

Basistaillierung

17,17 '.

steel edge

20

second tread

22

second sidecut

24

superimposed tread portion

26.26 '

survey

27.27 '

steel edge

28

superimposed tread portion

29.29 '

steel edge

34

crossing

38

crossing

40

Fastener, or screw

50

elast. element

60

active edge

α

edging angle

61

runner-like tread strip

62

runner-like tread strip

63

screw

64

double arrow

65

double arrow

66

double arrow

67

Support surface for adjusting screw 63

Claims (8)

1. Device for sliding on snow, especially a carving ski, having a base running face (10), which extends over a front (4), a central (6) and a rear (8) zone and which is waisted (12) in the longitudinal direction wherein, in the front (4) and or in the rear (8) zone of the base running face (10), two runner-like running-face strips (61, 62) are inserted in such a manner that they stand proud from the base running face (10) and, together with a central portion of the same, define a second running face having a second waist with a larger radius of curvature than the waist of the base running face (10),
   characterised in that
   the separate running-face strips (61, 62) are arranged to be movable out of the base running face (10) either stepwise or continuously.
2. Device for sliding on snow according to claim 1,
   characterised in that
   the runner-like running-face strips (61, 62) are fastened to the running-face side (2) of the device (1) for sliding on snow in such a manner as to be detachable.
3. Device for sliding on snow according to claim 1 or 2,
   characterised in that
   the runner-like running-face strips (61, 62) each run out from the base running face (10), increasingly standing proud from the base running face (10) in a direction towards the front or towards the rear, as the case may be.
4. Device for sliding on snow according to any one of claims 1 to 3,
   characterised in that
   the runner-like running-face strips (61, 62) are fastened with resilient elements interposed.
5. Device for sliding on snow according to any one of the preceding claims,
   characterised in that
   the separate running-face strips (61, 62) run out from the base running face (10) approximately in the shape of a wedge towards the front or towards the rear, as the case may be.
6. Device for sliding on snow according to any one of the preceding claims,
   characterised in that
   the front running-face strips (61, 62) in the front zone and the rear running-face strips in the rear zone of the device (1) for sliding on snow are movable out to a greater or lesser extent from the base running face (10) by means of adjusting screws (63) operable from the top face of the device (1) for sliding on snow.
7. Device for sliding on snow according to any one of the preceding claims,
   characterised in that
   the separate running-face strips (61, 62) are movable out from the base running face (10) by from 0 mm to 3.0 mm.
8. Device for sliding on snow according to any one of the preceding claims,
   characterised in that
   at the front and/or at the rear, there are in each case arranged two separate runner-like running-face strips (61, 62) which extend approximately parallel to each other, and in that those running-face strips are adjustable either together or individually.

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