EP3250298A1

EP3250298A1 - Ski comprising a grip aid

Info

Publication number: EP3250298A1
Application number: EP16705712.4A
Authority: EP
Inventors: Josef Holovicz; Martin PANWINKLER
Original assignee: Fischer Sports GmbH
Current assignee: Fischer Sports GmbH
Priority date: 2015-01-30
Filing date: 2016-01-29
Publication date: 2017-12-06
Anticipated expiration: 2036-01-29
Also published as: AT516811A1; RU2017130572A3; RU2690632C2; AT516811B1; WO2016118999A1; RU2017130572A; EP3250298B1

Abstract

Disclosed is a ski (1), in particular a cross-country ski, comprising a gliding surface layer (3); in a central region (7), especially in a grip zone, the gliding surface layer (3) has at least two groove-type depressions (8) for attaching a traction element (11) each. According to the invention, two groove-type depressions (8) are provided that are substantially next to each other, and a front end (9) and/or rear end (10) of one groove-type depression (8) is located at a distance from the front end (9) and/or rear end (10) of the other depression (8) in the longitudinal direction of the ski (1).

Description

SKI WITH STEIGHILFE

The invention relates to a ski, particularly a cross-country ^¬ ski, having a tread layer, wherein the tread layer in a central region, in particular a kick zone, at least two groove-shaped recesses for the attachment of a respective rear slide-inhibiting element has.

Skis with a plurality of grooves for receiving or attaching as climbing aid Rückgleithemmenden elements are already known in the art. If the climbing aids are releasably secured in the recess, this has the advantage that the user can optimize the type of Rückgleithemmenden elements as desired for his individual application. If the user moves, for example, preferably on groomed trails it is, for example, using a coated guard band or a sawtooth-like profile band to his progress to optimization ^¬ ren. Moves the user preferably in the free area of the user in the groove may preferably be a fur or the like , arrange.

From FR 2 301 274 AI a ski is known, in which one behind the other and - with respect to a central axis of the ski - laterally offset mutually arranged depressions are provided in a ski body, in which a respective Steigfellstreifen is firmly recorded. Through this over the entire length of the Ski ver ^¬ divided arrangement of the successive Steigfellstreifen an evenly distributed Rückgleithemmende effect should be achieved. Since, however, only a single pair of ascending streaks (viewed transversely to the longitudinal direction of the ski) is active, it must have a comparatively strong anti-backlash effect, which results in the risk of unsteady or non-harmonious transition between sliding and climbing phases.

From DE 211 07 37 A a ski is furthermore, for example, be ^¬ known, in which side a centrally arranged groove, two strip-shaped recesses in the running surface layer before ^¬ hands, in which strip-shaped rear slide-inhibiting elemene ^¬ te can be used. The disadvantage here

in particular, that during a load change from a sliding in a climbing phase, the two climbing aids used in the recesses abruptly unfold their anti-rebar effect. So ^¬ far during the sliding phase by an unwanted Körperge ^¬ weightsverlagerung or lane unevenness therefore the

rewinding inhibiting elements unfold their effect, the sliding phase is abruptly interrupted or at least briefly interrupted ge ^¬ ; ie there is a so-called plucking of the ski during the sliding phase, which is extremely unpleasant for the user. In addition, in the embodiment of DE 211 07 37 A with extending through the tread layer through recesses also disadvantageous that the tread layer - seen across the width of the ski - is interrupted and therefore between the lateral boundaries of the recess and the back-inhibiting elements used water can penetrate through the capillary action. This often leads to icing of these areas, whereby a functionality is not guaranteed in practical use.

A similar embodiment of a ski is known from FR 2 234 909 A, in which also two groove-shaped recesses are seen ^¬ before, in which fur inserts can be used. Again, the Rückgleithemmende effect occurs abruptly, so that the Ge ^¬ driving the plucking of the ski during the sliding phase is significant.

Object of the present invention is therefore to provide a ski, with which a harmonious transition between sliding and climbing phase is made possible and with which an abrupt on ^¬ set the Rückgleithemmenden effect during the sliding phase is avoided as possible.

According to the invention this is achieved in a ski of the type mentioned in that two substantially mutually adjacent groove-shaped depressions are provided, wherein a front end and / or rear end of a groove-shaped recess respectively from the front end and / or rear end of the other recess Is arranged spaced apart in the longitudinal direction of the ski.

Due to the staggered arrangement of the front end and / or rear end of the two groove-shaped depressions of two, preferred Ways parallel, substantially adjacent recesses, the effect of optionally used in the groove-shaped depressions Rückgleithemmenden elements does not occur at the same time. Two groove-shaped recesses thus have a front and / or rear end portion, in which - seen transverse to the longitudinal direction of the ski - the other recess (seen in the longitudinal direction of the ski) is not or no longer exists. At the same time, however, a partial (middle) section is provided by the sectional side-by-side arrangement of the depressions, in which both depressions (viewed in the transverse direction of the ski) run next to one another and thus, when pressure is applied in this region, both return-retentive elements possibly received therein are active at the same time. Accordingly, initially only the Rückgleithemmende effect of the element occurs, which is arranged in the groove-shaped recess whose front end is closer to the tip of the ski or whose rear end is located closer to the ski end. The Rückgleithemmende effect of the other element occurs in an area in which the beginning of the depression is closer to the ski center, during the movement ^¬ expiry only added at a later date, so that a har ^¬ monischer transition between sliding and climbing phase is achieved. The risk of an unwanted, abrupt onset of climbing aid by a body weight shift or due to uneven track during the sliding phase, ie a so-called plucking of the ski, is thus significantly reduced.

Provided for in the tread layer groove-shaped Vertie ^¬ levies are in this case in the central region, that is preferably disposed in the mid-sized ^¬ third of the ski, extending over about 30 to 60% of the total ski length. Preferably, the groove-shaped recesses extend substantially over the entire central region.

In order to obtain a particularly smooth transition between movement and ascent phase, it is advantageous if both are arranged in front ^¬ thereof and the rear ends of the groove-shaped depressions in the longitudinal direction of the ski in each case offset one another. This is achieved in a simple manner in that the at least two ^¬ groove-shaped depressions have substantially the same length. To water accumulation between an inserted rückbelithemem- element and the tread layer, which disadvantageously ^¬ can lead to ice formation, if possible

avoid, it is advantageous if the recesses each have a groove bottom in the tread layer, wherein the groove bottom is formed by the continuous tread layer. Thus, it is ensured that the tread layer also extends in the region in which the groove-like recesses are provided over the entire width of the ski, so Wasseransamm ^¬ lungs and an associated risk of icing over continuous recesses can be significantly reduced.

In order to enable in a simple manner the formation of groove-shaped recesses in the tread layer, which do not extend through the entire tread layer, it is advantageous if the tread layer in the central region, ^{¬ in} particular in the rising zone, a greater thickness than in a before ^¬ whose and / or rear sliding portion has. As a result, the groove-shaped recesses for receiving the non-return-inhibiting elements can be produced in a simple manner, for example by milling. Of course, there are others too

Variants for forming the depressions, for example the provision of groove-shaped depressions in a core, in which the tread material penetrates during compression of the ski - as be ^¬ known - possible -.

With respect to a constructive expedient embodiment in which the tread layer has a sufficient thickness to from ^¬ formation of the groove-shaped depressions for the purpose of receiving the rear slide-inhibiting elements, it is advantageous if the

Tread layer in the central region 1 mm to 5 mm, preferably 2 mm to 4 mm, in particular substantially 3 mm thick.

If the front and rear sliding portion in a Wesentli ^¬ chen constant first thickness and the central portion of the Laufflä ^¬ chenschicht a substantially constant second thickness

has a material-saving design in the front and rear sliding sections, ie outside those areas in which the groove-shaped recesses are provided, and at the same time is in that area of the ski, ie in the middle rich, in which the groove-shaped recesses are provided in the tread layer, sufficient material available to the groove-shaped recesses, which do not penetrate to a lower belt of the ski to incorporate.

In terms of a homogeneous transition between the sliding portions, in which the tread layer has a lower Di ^¬ bridge and the central region in which the

Tread layer has a greater thickness, it is of Vor ^¬ part, when the tread layer between the front and hin ^¬ direct sliding portion and the central region each one

has wedge-shaped transition region.

The strength of the ski at the same time not to adversely influence ^¬ impressive, it is favorable when a bordering on the tread layer at ^¬ lower belt is adapted to the different thicknesses of the tread layer. Advantageously, not only the course of the lower chord, but also the lower FLAE ^¬ surface of the core material, which adjoins the lower flange is adapted to the changing over the longitudinal extension of the ski material thickness of the tread layer so that a compact, high strength-tasting Ski obtained becomes.

With regard to a cost-effective and efficient production of the ski, it is advantageous if the tread layer has several parts, in particular a tread front part, a Laufflä ^¬ chenhinterteil and a tread center part with the at least two groove-shaped recesses. It is insbesonde ^¬ re favorable when the tread front part and the tread ^¬ rear part substantially conventional tread layers of constant thickness are, however, the tread center part before ^¬ geous enough, on the one hand has the wedge-shaped transition regions to the tread front and tread rear portion and a central portion with the groove-like depressions.

In order to enable a particularly harmonious transition between the sliding and the rising phase, it is advantageous if a groove-shaped depression has a greater depth in a front region seen in the longitudinal direction of the ski, in particular in the first third of the longitudinal extension than in the remaining region, wherein the region of greater depth is preferably formed wedge-shaped tapering rearward. This ensures that - with appropriate coordination with the inserted anti-backlash element - in the foremost region of the depression, the effective effective surface of the inserted anti-backlash element initially does not protrude over a tread plane defined by the tread layer. Only after the foremost area, the active surface of the anti-backlash element begins to protrude increasingly in the direction of the ski over the Laufflächene ^¬ bene.

Furthermore, it is favorable when at least one groove-shaped Vertie ^¬ Fung has a, viewed in the longitudinal direction of the ski rear portion, in particular in the last third of the longitudinal extension, a smaller depth than in the remaining area wherein the portion of lower depth is preferably wedge shaped tapering rearwardly , This results due to the reduced depression in the rear section that the active surface of a recorded in the recess Rückgleithemmenden element in the rear area a higher effect, preferably in the manner of a repelling edge, unfolds.

Tests have shown that it is favorable for avoiding the unwanted insertion of the anti-backlash effect of elements inserted in the groove-shaped recesses when the front and / or rear end of the groove-shaped recesses are arranged at a distance of 20 to 150 mm from each other.

With regard to a uniform course of the anti-backlash effect, it is advantageous if all groove-shaped recesses have substantially the same length and the same width.

In the prior art various rear slide-inhibiting Ele ^¬ mente as climbing aids are known which have un ^¬ terschiedliche advantages depending on the application. Accordingly, depending on

Application purpose according to the invention as rückbeleithemmendes element a fur strip, a film strip with a Rückgleithemmenden profile or a climbing wax, a rubber-filled plastic ^¬ foil or the like may be provided. In order to be able to provide a ski according to the invention with different anti-backlash elements in the groove-shaped recesses, it is expedient if the anti-return element is detachably connected to the running surface, in particular by means of a pressure-sensitive adhesive, a hook-and-loop fastener connection or the like.

The invention will be explained in more detail below with reference to preferred embodiments, to which, however, it should not be limited. In detail, in the drawings:

Figure 1 is a plan view from below of a ski with offset to ^¬ orderly groove-shaped depressions.

Fig. 2 is a bottom plan view of a ski with an alternative arrangement of staggered groove-like recesses;

3 shows a further plan view from below of a ski with a further alternative embodiment of staggered groove-shaped depressions;

4 is a further bottom view of a ski of an alternative embodiment with staggered grooves;

5 is an exploded view in longitudinal section ei ^¬ nes ski according to the invention;

6a shows a partial longitudinal section through an inventive ^¬ SEN ski with a groove-shaped recess.

Fig. 6b partially a longitudinal section of FIG. 6a with

used climbing skin as Rückgleithemmendes element;

Fig. 7a partially a longitudinal section of an alternative Ausfüh ^¬ tion example; and

Fig. 7b partial longitudinal section according to FIG 7a with a ^{riser ¬} th used. FIG. 1 shows a ski 1 from below, ie a view of the running surface 2 can be seen, which is formed by the underside of a tread layer 3.

The ski 1 has a ski tip or a front end 4 and a ski end 4 a, which is arranged in the running direction at the rear end of the ski 1. In a glide phase is the brought to Be ^¬ tenansicht in a known manner bent skis 1 substantially in two sliding portions of the tread 2 in physical contact with the snow, with the sliding portions of a front slide portion 5 in the front third of the ski and a rear slide portion 6 in the make up the rear third of the ski.

Between these two sliding portions 5, 6, a central region 7 is provided, in which a riser zone is provided. In this central area 7, the tread 2 comes into contact with the ground, in particular during full (weight) loading, ie in particular during the ejection. Mitt the same ^¬ rich 7 preferably extends over about 30 to 60% of the ski 1 and encloses at least the middle of the ski 1 with respect to the longitudinal extension of the ski.

As can be seen in FIG. 1, a total of three groove-shaped recesses 8 are provided in this middle region 7, which extend in the longitudinal direction of the ski 1 with a substantially constant width. However, the three groove-shaped recesses 8 do not set - as usual in the prior art - at the same place, but a front end 9 of a groove-shaped recess 8 is offset from the front end 9 of a further groove-shaped recess 8 is arranged. The distance between the front ends 9 of the groove-shaped recesses 8 is preferably between 20 and 150 mm.

As can further be seen, all recesses 8 have the same length, so that rear ends 10 of the groove-shaped depressions 8 are also arranged offset from each other. With the help of this staggered arrangement of the beginning or end of the groove-shaped recesses 8 a harmonious transition between sliding and climbing phase is achieved and the risk of abrupt onset of the optionally received in the groove-shaped recesses 8 elements or climbing aids 11 (see Fig. 5) by an unwanted body weight shift or by uneven track during the sliding phase, which leads to so-called plucking of the ski is reduced.

In Fig. 2, a further embodiment with three nutför ^¬ shaped recesses 8 is shown, in which case the front end 9 of two lateral recesses 8 are arranged substantially at the same height. The front and rear ends 9, 10 of a drit ^¬ th, arranged in the middle of groove-shaped recess 8 is, however, added to the other two wells disposed.

A similar embodiment is shown in Fig. 4, in which case the central recess 8 seen in the direction opposite to the two side recesses 8 is offset to the rear. That the front end 9 of the central recess 8 is arranged further back, so that - with the same length of the recesses 8 - the rear end 10 of the central groove 8 ends closer to the ski end 4a, as the rear ends 10 of the lateral recesses eighth

Fig. 3 shows a further embodiment with only two, offset in the longitudinal direction of the ski mutually arranged groove-shaped recesses 8. Again, the recesses 8 substantially the same length, so that both the front and the rear end 9, 10 of the two grooves offset from one another.

In all the exemplary embodiments according to FIGS. 2, 3 and 4, at least two groove-shaped recesses 8 are thus arranged offset to one another in the longitudinal direction of the ski as in the exemplary embodiment according to FIG. 1, so that the effects according to the invention described above in connection with FIG. 1 are also realized.

In the exploded sectional view of FIG. 5 is particularly apparent that the groove-shaped recess 8 extends not only through the entire tread layer 3 in the Mittelbe ^¬ rich 7, but that the groove bottom 12 is formed by the tread layer 3 itself. This results Also in the region of the groove-shaped recesses 8 advantageously a continuous tread layer 3, in which given ^¬ if back-inhibiting elements 11 can be used.

In the embodiment shown, the tread layer 3 is designed in three parts with regard to an efficient and cost-saving production and consists of a tread front part 3a, a tread rear part 3b and a Laufflä ^¬ chenmittelteil 3c together. The tread front part 3a and the tread rear part 3b in this case have a constant material ^¬ strength, the material thickness preferably, as is customary for tread documents, is about 1 to 1.2 mm. The ^groove- shaped recesses 8, however, have a depth of preferably approximately 0.5 to 0.8 mm.

In order to provide such groove-shaped recesses 8 in the tread layer 3 itself, ie to leave the tread layer 3 as the groove bottom 12 and thus avoid interruption of the Laufflä ^¬ chenschicht 3, the tread center part 3c is formed reinforced and has a kon ^¬ constant strength in the central portion up to 5mm. In the front and rear end portions of the tread center part 3 c wedge-shaped areas 13 are provided in which material thickness is constantly reduced / increased, so that the thickness of the tread layer of the maximum thickness in the central portion of the Laufflächenmittel ^¬ part 3 c at the ends of the tread center part 3 c to the thickness or height of the tread layer 3a, 3b is adapted in the front and rear sliding portion.

As further shown in Fig. 5, the ski 1 shown has a structure known per se, i. The tread layer 3 is adjoined by a lower belt 14, to which in turn the ski core 15 is continued by a tip insert 16 in the front end region and by an end insert 17 in the rear end region. Above the core 15, an upper belt 18 is again provided in a conventional manner.

As can be seen in FIG. 5, the arrangement or the course of the lower belt 14 is adapted to the material thickness of the tread layer 3 that changes over the ski longitudinal direction. Likewise is the bottom 15a of the ski core 15 adapted to the changing Materi ^¬ alstärke the tread layer 3, so that a compact layered structure of the ski 1 with yields varying material thickness of the tread layer. 3

In Fig. 6a and 6b is partially a section through the Laufflä ^¬ chenschicht 3 in particular the tread center part 3c shown, wherein it can be seen that the groove-shaped recess 8 may have a larger recess in the front region, especially in the foremost third, which then constant to the rear drops, so that the groove-shaped recess 8 tapers towards the rear in a wedge shape.

This ensures that the climbing aid shown in Fig. 6b used in the inserted state, used as Rückgleithemmendes element 11 in the front portion not or only slightly protrudes beyond the tread plane defined by the underside of the tread layer 3. Towards the rear, ie seen in the direction of the ski end 4a, an active surface of the climbing aid then protrudes toward ^¬ next slightly and then continuously to a greater extent beyond the running surface plane. This leads, in particular in combination with the staggered arrangement of the depressions 8, to a particular harmonic transition between sliding and climbing phase, and thus an abrupt onset of the climbing aid can be avoided even better.

In FIGS. 7a and 7b, it can further be seen that the groove-shaped depression 8 is also tapered in the rear region, in particular in the last third, towards the rear end 10 of the groove-shaped recess 8, ie. falls back towards the ski end 4a, so that the Rückgleithemmende element 11 and the climbing aid in the rear end of the groove-shaped recess 8 protrudes increasingly over the tread plane and thus unfolds in this area an improved Rückgleithemmende effect.

As rückgleithemmendes element 11 may be any be ^{¬ known} elements in particular - as shown - fur strip or a film strip with a Rückgleithemmenden profile or a climbing wax as well as a rubber-filled plastic film or the like may be provided. Preferably, the return is slide-inhibiting element 11 releasably connected to the tread 3, wherein the Rückgleithemmende element 11, in particular a carrier ^¬ or compound layer IIa and a the active surface having effective layer IIb provides. The bonding layer may IIa here at ^¬ at the groove bottom 12 facing surface fasteners, for example in the form of a hook and loop fastener, or

Pressure-sensitive adhesive layer or the like, to keep the rear slide-inhibiting element 11 during use of the ski 1 to a ^¬ hand reliably in the recess 8 and, however, to allow the other hand, easy replacement in order to advantageously allow individual adaptation to different appli ^¬-making purposes.

Claims

Claims:

1. Ski (1), in particular cross-country skis, with a tread layer (3), wherein the tread layer (3) in a Mittelbe ^¬ rich (7), in particular a rise zone, at least two

groove-shaped recesses (8) for fixing in each case a Rückgleithemmenden element (11), characterized in that two substantially mutually adjacent groove-shaped recesses (8) are provided, wherein a front end

(9) and / or rear end (10) of a groove-shaped recess (8) respectively from the front end (9) and / or rear end

(10) of the other recess (8) in the longitudinal direction of the ski (1) is arranged spaced.

2. Ski according to claim 1, characterized in that the at least two groove-shaped recesses (8) have substantially the same length.

3. Ski according to one of claims 1 or 2, characterized in that the recesses (8) in each case in the tread layer (3) have a groove bottom (12), wherein the groove base (12) of the continuous tread layer (3) is formed.

4. Ski according to one of claims 1 to 3, characterized in that the tread layer (3) in the central region (7), in particular in the riser zone, a greater thickness than in a front and / or rear sliding portion (5, 6).

5. Ski according to one of claims 1 to 4, characterized in that the tread layer (3) in the central region (7) has a Mate ^¬ rialstärke of 1 mm to 5 mm, preferably from 2 mm to 4 mm, in particular of substantially 3mm, having.

6. Ski according to one of claims 1 to 5, characterized in that the front and rear sliding portion (5, 6) has a substantially constant ^¬ first thickness and the central region (7) of Tread layer (3) has a substantially constant second thickness.

7. Ski according to claim 6, characterized in that the Laufflä ^¬ chenschicht (3) between the front and rear sliding portion (5, 6) and the central region (7) each have a

has wedge-shaped transition region.

8. Ski according to one of claims 4 to 7, characterized in that on the tread layer (3) adjacent lower belt (14) is adapted to the different thicknesses of the tread layer (3).

9. Ski according to one of claims 1 to 8, characterized in that the tread layer (3) comprises a plurality of parts, in particular a tread front part (3a), a tread rear part (3b) and a tread center part (3c) with the at least two groove-shaped recesses (8). having.

10. Ski according to one of claims 1 to 9, characterized in that at least one groove-shaped recess (8) in a longitudinal direction of the ski (1) seen front area, in particular in the first third of the longitudinal extent, a greater depth than in the remaining area , wherein the region of greater depth is preferably formed wedge-shaped tapering rearward.

11. Ski according to one of claims 1 to 10, characterized in that at least one groove-shaped recess (8) in a longitudinal direction of the ski (1) seen rear area, in particular in the last third of the longitudinal extent, a smaller depth than in the remaining area , wherein the region of lesser depth is preferably formed wedge-shaped tapering towards the rear ^¬ .

12. Ski according to one of claims 1 to 11, characterized net, that the front end and / or rear ends (9, 10) of the groove-shaped recesses (8) are arranged at a distance of 20 to 150 mm from each other.

13. Ski according to one claims 1 to 12, characterized in that all groove-shaped recesses (8) have substantially the same length and the same width.

14. Ski according to one claims 1 to 13, characterized in that as Rückgleithemmendes element (11) a fur strip, a film strip with a Rückgleithemmenden profile or a climbing wax, a rubber-filled plastic film or the like is provided.

15. Ski according to one claims 1 to 14, characterized in that the Rückgleithemmende element (8) is releasably connected to the running surface (3), in particular by means of a pressure-sensitive adhesive, a Velcro connection or the like.