EP0615774A2 - Bindingsystem and boots for snowboards - Google Patents

Abstract

The invention relates to a novel and improved design of a binding system for sliding boards, especially snowboards, and to novel and improved boots for use with such a binding system. <IMAGE>

Description

The invention relates to a binding system according to the preamble of claim 1 and to a boot for use in such a system according to the preamble of claim 12.

Bindings for snowboards are known and basically consist of a front binding element and a rear binding element, of which the front binding element forms a bow made of spring wire, into which the boot used can be inserted with a protruding part of the front end of the boot sole. In the case of known bindings, the rear binding element also consists of an elastic deformable bracket made of spring wire. On this, a tensioning or over-dead-center lever is pivotably provided, which, when the boot is fixed in the binding, engages behind the boot on a part of the boot sole protruding in the heel or heel region and thereby fixes it in the binding.

A disadvantage of the known binding or the known binding system, inter alia, is that the binding can only be closed and opened with great effort. This disadvantage is particularly serious because when using lifts, one of the two feet must be released from the snowboard for safety reasons. A cumbersome and forceful opening is required before each lift ride and an equally cumbersome and forceful closing of the binding is required after each lift ride.

Furthermore, in the known binding system, the fixation of the respective boot to the gliding board or snowboard is not optimal, despite being clamped in with great force, in particular not with regard to the lateral fixation of the boot in the heel or heel area. Even with high clamping forces, there is the possibility of one resilient lateral deflection (so-called uncontrolled lateral flex), through which an optimal control of the snowboard (in particular also control of the edge pressure) is not possible.

The object of the invention is to show a binding system which avoids these disadvantages and, with simple and easy handling, ensures reliable fixing of the boot in the binding and thus on the snowboard.

To solve this problem, a binding system is designed according to the characterizing part of claim 1.

A boot for use in a binding system is designed according to the characterizing part of claim 12.

In the binding system according to the invention, a simple and convenient application of the binding or fixing of the boot to the binding is possible by inserting it into the recess of the rear binding element with the at least one attachment or projection after insertion into the front binding element and there through the Locking element is locked. The boot is fixed in the binding without tensioning hard springs that hold the boot on the gliding board or snowboard and thus without effort. It is also possible to detach the boot from the binding without applying any force.

Forces acting transversely to the boot axis are absorbed in a controlled manner by the support surfaces on the rear binding element and by the counter surfaces interacting with these support surfaces on the boot. The support surfaces are, for example, surfaces of the at least one recess and / or surfaces of the rear binding element outside of this recess. The counter surfaces are either surfaces of the at least one projection and / or surfaces of the boot.

In a preferred embodiment of the invention, a protrusion is formed in the heel or heel region of the boot on each side running in the longitudinal direction of the boot, which then lies with its longitudinal extent transverse or perpendicular to the boot axis. With this design, a direct transmission of lever forces or torques acting around the boot axis between boots and snowboard is also possible, as occurs (torques) when the snowboard is edged. This enables direct edge control with simultaneous mobility in the direction of travel.

In particular, if the front binding element in the binding system according to the invention is also formed by a resilient bracket, in the invention, the boot is always clamped between the front and rear binding elements with the same and in particular also with optimal force, so that an unwanted loosening of the boot from the binding is prevented by the driving dynamics.

Developments of the invention are the subject of the dependent claims.

Fig. 1

in vereinfachter Darstellung und in Seitenansicht eine Bindung für ein Gleitbrett bzw. Snowbord zusammen mit einer Teildarstellung eines Stiefels, und zwar vor dem Festlegen des Stiefels in der Bindung;

Fig. 2

eine Darstellung wie Fig. 1, jedoch nach dem Festlegen des Stiefels in der Bindung;

Fig. 3

und 4 in Einzeldarstellung sowie in teilweiser Seitenansicht bzw. Rückansicht den Stiefel;

Fig. 5

in Draufsicht das rückwärtige Bindungselement einer ersten, möglichen Ausführungsform der Erfindung;

Fig. 6

einen Schnitt entsprechend der Linie I-I der Fig. 5;

Fig. 7

in Rückansicht das rückwärtige Bindungselement der Figuren 5 und 6 bei einer speziellen Art der Befestigung an dem Snowbord bzw. an einer Grundplatte der Bindung;

Fig. 8

in Einzeldarstellung und in einer Ansicht ähnlich der Fig. 7 ein bügelförmiges Verbindungsstück des rückwärtigen Bindungselementes;

Fig. 9

das rückwärtige Bindungselement in einem Schnitt entsprechend der Linie II-II der Fig. 7;

Fig. 10

in Draufsicht eine Befestigungs- bzw. Lagerplatte für die spezielle in den Figuren 7 - 9 dargestellte Halterung des rückwärtigen Bindungselementes;

Fig. 11 - 13

das rückwärtige Bindungselement der Figuren 5 und 6 in einer Darstellung ähnlich der Fig. 6 in verschiedenen Funktionsstellungen;

Fig. 14

in einer Darstellung wie Fig. 6 das rückwärtige Bindungselement bei einer weiteren, bevorzugten Ausführungsform;

Fig. 15

in Rückansicht das rückwärtige Bindungselement der Fig. 14.

The invention is explained in more detail below with reference to the figures using exemplary embodiments. Show it:

Fig. 1

in a simplified representation and in side view a binding for a gliding board or snowboard together with a partial representation of a boot, namely before the boot is fixed in the binding;

Fig. 2

a representation like Figure 1, but after setting the boot in the binding.

Fig. 3

and 4 in individual representation and in partial side view and rear view of the boot;

Fig. 5

in plan view the rear binding element of a first possible embodiment of the invention;

Fig. 6

a section along the line II of Fig. 5;

Fig. 7

in rear view the rear binding element of Figures 5 and 6 with a special type of attachment to the snowboard or to a base plate of the binding;

Fig. 8

in individual representation and in a view similar to Figure 7, a bow-shaped connecting piece of the rear binding element.

Fig. 9

the rear binding element in a section along the line II-II of Fig. 7;

Fig. 10

in plan view a mounting or bearing plate for the special mounting of the rear binding element shown in Figures 7-9;

Figures 11-13

the rear binding element of Figures 5 and 6 in a representation similar to Figure 6 in different functional positions.

Fig. 14

6 shows the rear binding element in a further preferred embodiment;

Fig. 15

14 shows the rear binding element of FIG. 14.

In the figures, 1 is a boot in the form of a special ski or snowboard boot, which in the area of its sole 2, at least on the front of the boot, forms an edge or step 3 that can be gripped behind by a binding element, as is also common with ski boots.

On the heel 4, the boot 1 has two projections 5, each of which protrudes over a side of the heel 4 which extends in the longitudinal direction of the boot. In the embodiment shown, the projections 5 are arranged coaxially with one another transversely to the longitudinal axis of the boot and are formed by a length of a round rod penetrating the boot 1 in the area of the heel 4 made of a heavy-duty material, preferably of stainless steel.

As FIGS. 1 and 2 show, the binding 6 essentially consists of a base plate 7, which can be attached with its underside to the top of the snowboard, not shown, on the top of which two binding elements are fastened, namely the front binding element 8, which consists of a plate 10 fastened to the top of the base plate 7 with a bracket 11, and the rear bracket element 9. At least one of the two bracket elements 8 and 9 is adjustable in the longitudinal direction of the base plate 7 in order to be able to adjust the binding 6 to different shoe sizes. When the boot 1 is fixed in the binding 6, it is held on the bracket 11 by means of the step 3 and lies with the underside of its sole 2 in the region of the front of the boot on the plate 10 which is offset to the rear from the front of the boot. By this design of the front binding element 8, all parts of the binding are offset backwards with respect to the front end of the boot when the boot 1 is fixed in the binding 6, so that the binding 6 has a short length.

Regardless of a different configuration, the rear binding element 9 forms in detail two lateral support jaws 13, between which a surface 12 is provided and which between them accommodate the boot 1 fixed in the binding 6 in the area of the heel 4, ie vertically on their mutually facing inner sides Form support surfaces 14 for the sides of the heel 4 extending in the longitudinal direction of the boot. When the boot 1 is arranged in the binding 6, the surface 12 lies at a distance from the underside of the sole 2 or the heel 4 and is also sloping or wedge-shaped, so that any clump of snow adhering to the underside of the heel is blown off by the sloping surface 12 when the boot 1 is inserted into the binding.

Each support jaw 13 furthermore has an open slot 15 on the support surface 14 and on the upper side of the support jaw facing away from the base plate 7, into which a projection 5 can be inserted in each case in order to fix the boot 1 in the binding 6. Each projection 5 can be locked in the associated slot 15 by means of a binding mechanism or locking device described later and having a locking element 16.

In order to facilitate the insertion of the respective projection 5 into the associated slot 15, the upper side of each support jaw 13 is formed at least in a partial area as an inclined surface 17, which, starting from the end of the binding element 9 or the supporting jaw 13 that is remote from the binding element 8, follows at an angle flowing into the respective slot 15 below. A similar inclined surface 18 is also formed on the other side of the slot 15.

Furthermore, it is inclined, each slot 15 and obliquely formed such that the longitudinal extension of said slot lies in a plane E, which includes with the plane of the base plate 7 an angle kleinr than 90 ^o, which opens to the the binding element 8 facing away side .

To fix the boot 1 in the binding 6, this is first inserted with its front end into the bracket 11 of the binding element 8. The binding is adjusted so that after this insertion the projections 5 are located at the upper end of the slot 15, ie approximately at the transition from the inclined surface 17 into this slot. By pressing the boot 1 on the heel, each projection 15 is then inserted into the associated slot 15. Due to the above-described inclination of the slits 15, the necessary tightening of the boot 1 in the binding becomes such achieved that the bracket 11 forming an angled bracket level is slightly elastically deformed and thus particularly reliably engages behind the step 3.

The binding 6 allows the snowboard to be easily connected to the boot 1 without excessive effort. Since the two binding elements 8 and 9 are rigidly or at least substantially rigidly fastened to the base plate 7, a rigid fixing of the boot 1 to the snowboard which guarantees optimal guidance of the snowboard is also ensured.

The rear binding element 9 can be designed differently and can also be fastened differently to the base plate 7.

FIGS. 5 and 6 show a possible embodiment of a binding element 9a, in which the two section jaws 13, each formed as a housing, are connected and spaced from one another via two steel brackets or bracket-like connecting pieces 19, which also form the horizontal surface 12. With the connecting pieces 19, the binding element 9a is, for example, screwed directly onto the base plate 7.

Fig. 6 shows in detail the elements of the locking device, which are housed in each housing-like support jaws 13. The locking device consists first of all of the hook-shaped locking element 16, which is provided at one end below the surface 12 on a shaft 20 and is pivotable relative to the latter, which extends between the two support jaws 13 and is pivotably supported on both ends thereof. The shaft 20 is located below the surface 12. The axis of the shaft 20 still lies in the common plane E with the longitudinal extent of the slots 15 or their central axes.

At the upper end, each locking element 16 forms a hook-shaped section 21 which, when the locking element 16 is pivoted about the axis of the shaft 22, consists of one in which Fig. 6 shown in broken lines non-locking position, in which the locking element 16 or the portion 21 is arranged outside of the slot 15 and laterally thereof, pivotable into a position in which the locking element 16 with the hook-like portion 21 in the respective Slot 15 extends, namely in the area of the upper end of this slot and thus engages behind a projection 5 arranged in the slot 15 and thus locked against moving out of the slot 15. Due to the above-described arrangement of the axis of the shaft 20 in the plane E, forces acting on the locking element 16 through the projection 5 in the sense of moving this projection out of the slot 15 do not act in the sense of releasing the locking or pivoting the locking element back 16 in the unlocked position. Spring elements, not shown in detail, for example a leaf spring, prestress each locking element 16, which is located in the unlocking position on the side of the slot 15 facing the binding element 8, in the locking position.

The locking device further comprises a locking lever 22 which can be pivoted about an axis parallel to the axis of the shaft 20 and which, in the locking position of the locking element 16, bears against a surface formed on this locking element and thereby prevents an undesired pivoting of the locking element 16 from the locking position. A driver 23 is provided on the shaft 20 in a rotationally fixed manner, which forms a control surface 24 which interacts with the securing lever 22 and a counter surface 26 which interacts with a stop 25 on the locking element 16. An actuating lever 27 is provided on the shaft 20 at an end projecting from a support jaw 13. By pivoting this actuating lever and thus the shaft 20, the locking element 16 located in the locking position can be released. As a result, the securing lever 22 is first pivoted through the control surface 24 in such a way that it releases the locking element 16. When panning the Driver 23, the counter surface 26 comes to rest against the stop 25, whereby the locking element 16 is then carried against the action of the spring, not shown, and pivoted into the unlocking position. A ratchet lever 28 engages behind a surface of the locking element 16 in the unlocking position and holds it in the non-locking position. The pawl lever 28 has a projection 29 which projects into the respective slot 15. Spring elements (not shown) are also provided for the locking lever 22 and for the pawl lever 28, which pretension the locking lever into a position securing the locking element 16 in the locking position and the pawl lever 28 into a position holding the locking element 16 in the non-locking position.

Figures 11-13 show the function of the elements of the locking device. FIG. 11 shows the insertion of a projection 5 into a slot 15 with the locking element 16 unlocking. If the projection 5 comes to rest against the shoulder 29, the locking element 16 is released by pivoting the latch lever 28, which then pivots into the locking position shown in FIG. 12, in which the locking element 16 is also secured by the locking lever 22.

13 shows the state of the locking device when unlocking with the aid of the actuating lever 27, in which figure the securing lever 22 has already released the locking element 16 and the driver 23 bears against the stop 25.

In the embodiment shown in FIGS. 7-10, the binding element 9a is not absolutely rigid, but is fastened to the base plate 7 with a certain possibility of movement. For this purpose, an intermediate or fastening plate 30 is used, on the one surface side of which two plate-shaped bearing elements 31 are provided, each of which has a bearing pin or a mandrel 32 which engages in an opening 33 which is formed in the connecting piece 19 is provided between the two support jaws 13. The openings 33, which lie with their axis parallel to the longitudinal extent of the base plate 7, have a cross section which is larger than the cross section of the mandrels 32. Between the intermediate plate 30 and the underside of the connecting element 19, a rubber buffer 34 is arranged, which by elastic deformation allows a certain movement of the binding element 9a relative to the base plate, by an amount that is predetermined by the play of the mandrels 32 in the openings 33.

FIGS. 14 and 15 show as a preferred embodiment a binding element 9b, which in turn consists of the two housing-like support jaws 13, each with a slot 15. Instead of the locking element 16, a locking element 16a is provided. The two locking elements 16a, which in this embodiment are held against rotation on the shaft 20, are each biased by a leaf spring 35 into the locking position in which each locking element 16a with its hook-like section 21a protrudes from the housing-like support jaws 13 on the top and outside of the support jaw 13 closes the relevant slot 15 at its upper, open end and thereby locks a projection 5 seated in the slot 15. Furthermore, each locking element 16a is designed such that when pivoting against the action of the spring 35 into the non-locking position in this position, it lies with the hook-like section 21a on the side of the slot 15 facing away from the binding element 8.

At the free end of the hook-shaped section 21a, each locking element 16a forms an inclined surface 36, which lies in a plane running parallel to the axis of the shaft 20, which includes an angle of less than 90 ^° with the base plate 7, which is to the rear, ie to the opens the side of the binding element 9b facing away from the binding element 8. To fix the boot 1 in this binding 6a, the front end of the boot 1 is first inserted into the bracket 11 of the binding element 8. Then the Boots 1 with its heel 4 moves downwards, the projections 5 moving approximately in a circular arc around the front end of the bracket 11 and each projection coming to bear against an inclined surface 36. Upon further downward movement of the heel area of the boot 1, the projections 5 are inserted into the respective slot 15 with resilient evasion of the locking elements 16a, so that finally each locking element 16a pivots back into the locking position by the action of the leaf spring 35 and thereby this projection 5 in the associated slot 15 locked.

In the case of the binding element 9a, too, the axis of the shaft 20 and the longitudinal extent of each slot 15 lie in the plane E, which has the undesired inclination. To open the binding, the two locking elements 16a are pivoted into the unlocking position via the actuating lever 27 and the shaft 20.

The binding 6a or its binding element 9b are distinguished by an extremely simple and therefore very reliable construction. A large number of elements are dispensed with in the locking devices. Rather, these are essentially reduced to the hook-like locking elements 16a.

The invention has been described above using an exemplary embodiment. It goes without saying that changes and modifications are possible without departing from the inventive idea on which the invention is based.

Reference list

1

Boots

2nd

sole

3rd

step

4th

paragraph

5

head Start

6, 6a

binding

7

Base plate

8th

Binding element

9, 9a, 9b

Binding element

10th

plate

11

hanger

12th

area

13

Support jaw

14

Support surface

15

slot

16, 16a

Locking element

17, 18

Sloping surface

19th

Connector

20th

wave

21, 21a

hook-shaped section

22

Safety lever

23

Carrier

24th

Control surface

25th

attack

26

Counter surface

27

Operating lever

28

Ratchet lever

29

approach

30th

Intermediate plate

31

Bearing element

32

mandrel

33

opening

34

Rubber buffer

35

Leaf spring

36

Sloping surface

Claims (12)

Binding system for sliding boards, in particular snowboards, consisting of a front binding element (8) with a holding element (11) engaging behind a surface or step (3) at the front end of a boot (1), and a rear binding element (9, 9a, 9b) , on which the boot (1) can be fixed in the heel or heel area by at least one locking element which engages behind a projection (5) provided there on the boot (1), the boot (1) being held in the binding (6, 6a ) in a first axial direction, which is perpendicular to the longitudinal axis of the boot and parallel or approximately parallel to the underside of the boot, the rear binding element (9, 9a, 9b) forms two support surfaces (14), each of which in the case of a boot arranged in the binding (6, 6a) a counter surface is adjacent to the boot (1), the rear binding element (9, 9a, 9b) having at least one recess (15) provided on a jaw (13) with an opening for opening guide the projection (5) into this recess, in which the projection (5) can be locked after insertion by the locking element (16, 16a), characterized in that the locking element (16, 16a) on the at least one recess (15 ) it is provided that the at least one recess is formed by a slot (15) in the jaws (13) having the recess, which (slot) is open on the upper side of the jaw (13) facing away from the sliding board or snowboard and there is the opening for inserting the projection (5) into the slot, and that the projection (5) when inserted into the slot (15) with its longitudinal extension is perpendicular or transverse to the longitudinal extension of the slot (15). Binding system according to claim 1, characterized in that the support surfaces (14) are formed on two support jaws (13) which receive the boot (1) between them in the heel or heel area (4). Binding system according to claim 1 or 2, characterized in
that the support jaws (13) each have a recess (15) and a locking device formed at least by the locking element (16, 16a),
and or
that each support jaw (13) is designed like a housing for receiving the elements of the locking device. Binding system according to one of claims 1-3, characterized in that the locking element (16, 16a) is preferably pivoted between a locking position in which a locking section (21, 21a) of the locking element (16, 16a) into the recess (15) extends into it, and a non-locking position is movable, in which the locking section (21, 21a) lies outside the recess,
preferably a spring device (35) is provided, which prestresses the locking element in the locking position, and preferably the at least one projection (5) can be locked in the recess (15) by resilient engagement by means of the locking element (16, 16a). Binding system according to one of claims 1-4, characterized in that the locking element (16, 16a) is hook-like or is provided with a hook-like locking section (21, 21a). Binding system according to one of claims 1-5, characterized by means (20, 27) for manually opening the binding (6, 6a). Binding system according to one of claims 1-6, characterized in that each support jaw (13) has a slot (15) open at the top of the support jaw (13) as a recess for the projection (5),
each slot (15) preferably lies with its longitudinal extent in a plane (E) which forms an acute angle with respect to a plane of the underside of the boot, which angle extends to the side of the binding (6, 6a) facing away from the front binding element (8) opens. Binding system according to one of claims 1-7, characterized in that the at least one projection (5) is formed by a pin, preferably round pin, anchored to the boot (1) in the heel or heel area and extending over the surface of the boot (1) there. protrudes. Binding system according to one of claims 1-8, characterized in that a protrusion (5) is provided on the heel or heel area (4) of the boot (1) on the sides running in the longitudinal direction of the boot. Binding system according to one of claims 1-9, characterized in that the locking element (16a) is designed as a resilient latching element such that when the projection (5) is inserted into the recess (15) against the action of a spring (35) from the locking position is moved into the non-locking position and returns after inserting the projection into the recess in the locking position and thereby locking the projection (5) in the recess (15). Binding system according to one of claims 1-10, characterized in that
that the locking device has at least one locking element blocking or securing the locking element (16) in the locking position, preferably a locking lever (22) and / or a holding element holding the locking element (16) in the unlocked position, preferably a latch lever (28),
and or
that the at least one recess (15) with a surface, preferably with a bottom surface, forms a further support surface for the boot in a vertical, second axial direction, ie in the axial direction transverse to the longitudinal axis of the boot and perpendicular to the first axial direction,
and or
that the rear binding element (9, 9a, 9b) has a preferably wedge-shaped surface (12) which, when the boot (1) is arranged in the binding, is arranged under the heel (4) of the boot (1) and is at least partially spaced therefrom. Boots for use in the binding system according to one of claims 1-11, characterized by at least one pin or projection (15) protruding from the heel or heel area over the outer surface of the boot.

Images