EP1998860A1

EP1998860A1 - Tied skies

Info

Publication number: EP1998860A1
Application number: EP06813154A
Authority: EP
Inventors: Andrej Robic; Istok Belehar
Original assignee: Alpina Tovarna Obutve doo
Current assignee: Alpina Tovarna Obutve doo
Priority date: 2005-11-09
Filing date: 2006-11-09
Publication date: 2008-12-10
Also published as: WO2007055667A1

Abstract

Present invention refered to the tied skis with crossbars (3',3') and inclined isosceles joints (1) jointed with the screws on the ski (5', 5'') ahead and after the safety bindings (10). The composition according to the invention solved the problem for easier and faster skiing teaching and training of the competitors in new »carving« technique. The second realisation of the invention refered to the tied skis with crossbars (200',200') and biaxial joints (100) jointed across the guidance (400) and with the screws on the ski (800',800'') ahead and after the safety bindings and makes possible the same inclination of the skis (800',800'') β' = β' independend from moving the ski (800') (value A). With this embodiment of the invention the skiers themselves modernized their own technique of skiing with the »carving« technique.

Description

TIED SKIES

The invention refers to skis tied with two crossbars in front of and behind safety bindings.

Two crossbars connect both skis at inclined joints, which enable rotation of skis around its longitudinal axis or inclination of skis for a definite angle, respectively, depending on the inclination angle of joints and on displacement of skis, where one ski is displaced forward and the other backward. Skis and crossbars form parallelogram, which assures, that at skiing skis are always parallel to each other or displaced for a definite angle and equally inclined to snow surface. The forward shift of internal ski in forward skiing direction depends on inclination of direction of skis in turn.

Described invention solves the problem of learning new carving skiing technique. When skiing, tied skis force skier to load both skis evenly and to hold them equally inclined to ground. When skiing it is important that skis can not be crossed or widened, what is important for safety of skier, especially for less skilled skiers.

Tied skis according to invention are designed for learning new skiing technique called carving, for correction of old skiing technique and for training of competitors. Tied skis according to invention have side curves with radius R<15m. Crossbars are connected to inclined one-shanked joints via forks with a screw or a pin. In first example one fork shank has a coil for tightening the screw, and in second example forks have a spring pin, which enables simple and fast removal of crossbars from skis, that less experienced skier is easily able to get in the line at entry stations of ski tows or chair lifts. In third example crossbars are connected to inclined two-shanked joints with a screw and with a case between both shanks.

Inclined joints can be mounted to skis on washers or are component part of the latter or of safety bindings. The known realizations of mutually tied skis are those from company Twinbiade GmbH from Germany. Connection of skis is designed only for parallel position of both skis. Inclination and movement of skis is completely uncontrolled.. Safety distance bar is described in patent document EP 0 501 932 A1. Inclination and movement is uncontrolled in all directions.

Winter sport device according to document DE 3 600 129 A1. Only inclination of skis is forced.

Winter sport device according to document DE 3 628 111 A1. Only inclination of skis is forced. The aim of invention of tied skis, defined in introduction, is

- to shorten time and to facilitate learning carving skiing;

- to correct old skiing technique of recreation skiers and competitors;

- to ensure safer skiing. This aim is according to invention solved by characteristics indicated in characterized part of patent claims. Concretization of solution according to invention is described in subclaims. The invention is further concretized on the basis of realized examples, presented in enclosed plans, which show: Fig. 1 parallel and shifted skis at angle -δ 5° to +δ 10° from parallel skis;

Fig. 2 longitudinal section of inclined isosceles joint according to invention on the ski, inclined at angle α < 90° and connected with crossbar via forks with screw; Fig. 3 inclined isosceles joint with screw in front projection; Fig. 4 longitudinal section of inclined isosceles joint according to invention on the ski, inclined at angle α < 90° and connected with crossbar and forks with pin;

Fig. 5 inclined isosceles joint with pin in front projection;

Fig. 6 longitudinal section of inclined two-shanked joint according to invention on the ski, inclined at angle α < 90° and connected with crossbar via case and axis; Fig. 7 inclined two-shanked joint in front projection;

Fig. 8 tied skis with fixed inclined isosceles joints on the ski in front projection; Fig. 9 tied skis with fixed inclined isosceles joints on the ski in ground plan projection; Fig. 10 tied skis with inclined isosceles joints, fixed or integrated in washer in front projection; Fig. 11 tied skis with inclined isosceles joints, fixed or integrated in washer in ground plan projection; Fig. 12 tied skis according to invention inclined at angle β' or β" in front projection, respectively; Fig. 13 tied skis according to invention in the form of parallelogram;

Fig. 14 cross section of biaxial joint according to invention, fixed to skis with screws;

Fig. 15 biaxial joint with inclination ability of α = 0 - 90° in front projection; Fig. 16 tied skis according to invention inclined to ground at angle β1 , β2, β3,... in cross section; Fig. 17 tied skis with pilot shift for value of A and inclination angle of crossbars α = 10 - 80° in ground plan projection; Fig. 18 tied skis with pilot shift forward, as crossbars are inclined for angle α = 0° in cross section. Skis can not be inclined; Fig. 19 tied skis with pilot shift forward in ground plan projection;

Fig. 20 tied skis with crossbars in horizontal position α = 0° in side projection;

Fig. 21 tied skis without pilot, when inclination of skis is uncontrolled; Fig. 22 tied skis without pilot in ground plan projection;

Fig. 23 tied skis with crossbars in vertical position α = 90° in side projection;

Tied skis with crossbars 3' in 3 according to invention (p.1) in ground plan projection are parallel and shifted from parallel skis for angle -δ 5° to +δ

10°. Tied skis with inclined isosceles joints 1 according to invention (p.2, 3) include skis 5, crossbar 3 and forks 8, connected to inclined profile 2 with screw 4. Tied skis with inclined isosceles joints 6 according to invention (p.

4,5) include skis 5, crossbar 3 with forks 8 that have a pin 9 which locks forks 8 to stopper 7 in inclined profile 2.

Tied skis with inclined two-shanked joints 12 according to invention (p.

6,7) include skis 5, crossbars 3, cases 15 connected to inclined profile 13 with axis 14.

Tied skis according to invention (p. 8,9) include skis 5' and 5" with crossbars 3' and 3" and with forks 8. Inclined profiles 2 are mounted skis

5' in 5" in front of and behind safety bindings 10' and 10".

Tied skis according to invention (p.10,11) include skis 5' and 5" with crossbars 3' and 3" with forks 8. Inclined profiles 2 are integrated or component part of washer 11 ' and 11 ". Tied skis according to invention (p.12) with crossbar 3, that connects skis 5' and 5" via inclined joints 1 , 6 or 12, and inclines skis for angle β' =

β" - Tied skis according to invention (p.13) with crossbars 3' and 3" forming parallelogram with inclined joints 1 , 6 or 12 on skis 5' and 5", holding skis together and always parallel or at angle δ.

Tied skis according to invention (p.1 , 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 , 12, 13) function in the following way:

When skiing straight and the skis 5' and 5" are set flatly on the ground, the skis remain parallel or at angle δ, because they are connected with crossbars 3' and 3". They remain parallel or at angle during the turn, as well. As the skier bends in the turn, both skis 5' and 5" bend equally to the same side for angle β' = β" (p. 12), because they are forced by joints 1 , 6 or 12. There the ski 5' on the inner side of the turn automatically shifts forward for such distance as demanded by joints or inclination of skis, respectively (p.13). Inclination and longitudinal shifting of skis is mutually dependent. Tied skis with biaxial joint 100 according to invention (p. 14 and 15) includes crossbar 200 with ability to lean for angle α = 0 - 90°. Vice 300 with crosswise set axes 500 and 600 laid into bearings in guidance 400, which is fixed to skis 800 with screws. Crossbar 200 is held in middle position α = 45° by spiral spring 700, which at one end is fixed in guidance 400, and at the other end in vice 300. Tied skis according to invention (p. 16 and 17) include crossbars 200' and 200", which via biaxial joint 100 are laid into bearings in guidances 400' and 400". At inclination of crossbars 200' and 200" in the range α = 10 - 80°, caused by shifting of skis for value A the skis 800' and 800" incline to ground at desired angles β1 , β2, β3. Tied skis according to invention (p. 18, 19 and 20) include crossbars 200' and 200", laid horizontally onto skis α = 0°, allow shifting of skis 800' and 800" only forward and backward without inclination to ground β = 0°. Tied skis according to invention (p. 21 , 22 and 23) include crossbars 200' and 200" and if they are vertical on skis 800' and 800" α = 90°, shifting of skis forward and backward is not possible, and skis incline left and right uncontrolled.

Tied skis according to invention function in the following way:

When skiing straight, as well as skis 800' and 800" are set flatly, they remain parallel to each other, because they are connected together with crossbars 200' and 200". Skis remain parallel to each other during turn, as well. Skier starts the turn by pushing ski 800' (pilot) forward (p. 17). When skier inclines his body or knees in direction of turn, skier thanks to biaxial joint 100, as axes 500 and 600 are neither parallel nor vertical to skis 800' and 800", inclines skis for desired angle β' = β" (p. 16). At inclination of crossbars 200' and 200" at approximate angle α = 10 - 80°, inclination of skis 800' and 800" is independent of pilot shift (vrednost A) and inversely inclination of crossbars 200' and 200" is caused by inclination of skis 800' and 800". When shifting flatly set skis 800' and 800" forward and backward (p. 18) (walking on skis) biaxial joint 100 forces crossbars 200' and 200" into horizontal position α = 0° (p. 20). Because in this example axes 500 are set vertically to skis 800' and 800", inclination of skis is not possible (p. 19). The opposite example, when axes 500 in biaxial joint 100 are positioned parallelly to skis 800' and 800", it is, when crossbars 200' and 200" are vertical to skis 800' and 800" α = 90° (p. 23), shifting of skis 800' and 800" forward and backward is not possible (p. 22), but skis 800' and 800" incline uncontrolled (p. 20).

Claims

PATENT CLAIMS

1. Tied skis characterized in that skis (5 and 5') are parallel to each other or shifted from parallel for angle -δ 5° to +δ 10°, depending on the fact if crossbars (3',3") are equally long or front crossbar (3') is shorter or longer than rear crossbar (3")

2. Tied skis characterized in that they include inclined isosceles joints (1), composed by inclined profiles (2), on which crossbars (3) are fixed via forks (8) and screw (4).

3. Tied skis characterized in that they include inclined isosceles joints (6), composed by inclined profiles (2) with stoppers (7), on which crossbars (3) are fixed via forks (8) and spring pin (9).

4. Tied skis characterized in that they include inclined two-shanked joints (12), composed by inclined profiles (13), on which crossbars (3) are fixed via case (15) and axis (14).

5. Tied skis according to claims 1 ,2,3,4, characterized in that inclined profile (2 and 13) is screwed on skis (5 and 5') in front of and behind safety bindings (10' and 10").

6. Tied skis according to claims 1 ,2,3,4, characterized in that inclined profiles (2 and 13) are fixed or integrated in washer (11 ' and 11').

7. Tied skis according to claims 1 ,2,3,4, characterized in that inclined profiles (2 and 13) are inclined to skis at angle α < 90°.

8. Tied skis according to claims 1 ,2,3,4, characterized in that crossbars (3) can have desired shape and length.

9. Tied skis characterized in that they include biaxial joints (100), composed of vice (300) and guidance (400).

10. Tied skis 5 characterized in that vice has shape of letter Y with upper part of shape of letter U, wherein crossbar (200) is connected, and lower shank of vice (3) leans on guidance (400).

io 11. Tied skis characterized in that they have vice (300), in upper part axis (500) and in middle part perpendicular to axis (500) axis (600).

15 12. Tied skis characterized in that on axis (600) there is spiral spring (700), which at one end is fixed in guidance (400), and at the other in vice (300).

20 13. Tied skis characterized in that vice (300) is laid in bearings in guidance (400) with shape of letter U.

14. Tied skis according to claims 9,10,11 ,12,13, characterized in that guidance (400) and therefore also biaxial joint (100) is fixed by screws to skis (800' and 800") in front of and behind safety bindings.

5 15. Tied skis according to claims 9,10,11 ,12,13, characterized in that crossbars (200) can have desired shapes and lengths.

16. Tied skis according to claims 9,10,11 ,12,13, io characterized in that biaxial joint (100) thanks to axes (500 and 600) and inclination of crossbars (200) in the range of α = 10 - 80° enables inclination of skis (800' and 800") to ground at equal angles β' = β".

15 17. Tied skis according to claims 9,10,11 ,12,13, characterized in that crossbars (200) are in horizontal position α = 0°, when axis (500) stands vertically on skis (800), and enables only shifting of skis (800' and 800") forward and backward without inclination.

20

18. Tied skis according to claims 9,10,11 ,12,13, characterized in that crossbars (200) are in vertical position α = 90°, when axis (500) stands parallel to skis (800' and 800") and, when shifting of skis forward and backward is not possible, and inclination of skis is uncontrolled.