EP1428559B1 - Releasable binding - Google Patents

Abstract

The releasable ski binding has a support plate with front and rear boot holders (8,9) interacting in a useful position in keyed engagement with counter faces on the boots to secure same. The rear boot holders can be moved against an adjustable resistance of a second detent assembly uncoupled from the first into a release position and/or the front boot holders inside a predetermined rotational angular area of the support plate are locked without reaction to the resistance of the first detent device and are unlocked outside of the rotational area. The rear sole holders only release in the vertical direction.

Description

The invention relates to a releasable ski binding according to the preamble of claim 1.

In virtually all currently available on the market ski bindings a front shoe holder assembly and a rear shoe holder assembly are arranged on the ski, the front shoe holder assembly interacts positively with the toe end and the rear shoe holder assembly with the heel end of the (standardized) shoe sole of a ski boot, namely such that the toe-side sole end of the front shoe holder assembly is prevented from moving forward in the ski longitudinal direction and to movements in the direction of Skihoch- and Skiquerachsen, while the heel-side sole end of the rear shoe holder assembly against backward movement in the longitudinal direction and against movements in the direction of the vertical and transverse axes of the Skis is secured.

Such bonds have reached a high standard of development and high security. In principle, however, they have the disadvantage that soiling, which may occur between soles and shoe holder assemblies, can have an influence on the tripping behavior.

That is why, according to the US 4,182,524 showing the features of the preamble of claim 1, developed ski bindings, wherein the ski boot is on a binding side stand or support plate which is rotatable against adjustable resistance about a ski vertical axis. When inserted into the binding shoe, the shoe sole is fixed on the support plate by means of plate-side shoe holder elements, which cooperate with sole-side counter-elements.

If the skier's foot or foot tries to make a rotational movement with respect to the vertical axis of the ski during a fall, a binding according to the invention will occur US 4,182,524 the rotational resistance to be overcome during this rotation is determined exclusively by connection-side elements, which can in principle be disposed of protected against dirt, in accordance with US 4,182,524 for example, within the stand or support plate.

Nevertheless, the bond has been made according to the US 4,182,524 still not a satisfactorily reproducible behavior. The rotation resistance of the standing or support plate about the vertical axis is determined by a spring arrangement, which is also the trigger resistance of the plate side Shoe holder elements causes. In this case, the arrangement is designed so that the shoe holder elements receive an increasing motion play in the direction of their shoe releasing position upon rotation of the stand or support plate about the vertical axis. Conversely, the stand or support plate receives a rotational play as soon as the shoe holder elements are adjusted by relative movements between stand or support plate and shoe sole in the direction of the shoe releasing position. Thus, between stand or support plate and shoe sole occurring contaminants on the one hand affect the release behavior of the bond and on the other hand, the restoring behavior of the bond within their so-called elasticity range, within which acting on the binding disturbance forces to movements of binding elements or parts but not yet to a trigger lead the binding, so that the binding can reset when the disappearing disturbance force in the normal, the shoe in a predetermined desired position fixing state.

The DE 40 10 923 A1 shows a ski binding, which reveals the features of the preamble of claim 1 largely. However, it remains unclear whether the toe-side sole holder locked in normal position of the base plate or can be triggered.

A similar ski binding is the subject of DE 34 15 272 C2 , but with the difference that the toe-side end of the ski boot is held without releasability.

The technological background is otherwise on the US 4,017,098 , the US 3,963,253 and the US 4,395,055 directed.

The object of the invention is now to ensure a particularly good reproducible release and elastic behavior in a ski binding.

This object is achieved by the characterizing features of claim 1

The invention is based on the general idea within the elasticity range of the binding critical relative movements between the shoe sole and stand or support plate largely excluded. This is achieved primarily by the fact that the front shoe or sole holders are pivotable about substantially horizontal longitudinal axes and within a predetermined rotational angle range of the stand or support plate at least substantially without retroacting the resistance of the locking device, against the resistance of the stand or support plate is pivotable about a vertical axis, locked and unlocked outside the rotation range.

In addition, it may optionally be provided that the rear sole holder is adjustable against adjustable resistance of a decoupled from the aforementioned locking device further locking device in a release position.

By pivotable about horizontal longitudinal axes front shoe or sole holder a great freedom in design of the shoe sole is guaranteed. Thus, the sole can be shaped so that the skier can go well after releasing the shoes from the binding.

It should be emphasized that the rear sole holders according to a preferred embodiment of the invention can be triggered only in the vertical direction, i. by forces that seek to lift the heel of the shoe from the stand or support plate vertically. Accordingly, no displacements between the sole or stand or support plate can occur in the heel area, if disturbing forces cause a torque between shoe and ski with respect to the vertical axis.

As far as possible disturbing forces to lift the shoe vertically from the stand or support plate under adjustment of the rear shoe holder in the direction of the trigger state, any contamination between stand or support plate and shoe sole can exert any disturbing influence.

According to a very particularly preferred embodiment of the invention, the stand or support plate is associated with a torque support, which converts to the stand or support plate with respect to a transverse plate axis acting torques in terms of the vertical axis and a further rotation of the stand or support plate to the High-axis supporting moment generates as soon as the stand or support plate has a middle position or a middle position range has left. In this way, the fact that torsional loads of the tibia and the foot and knee joints are to be reduced when the leg is additionally stressed by additional forces, as they typically occur in a forward or backward fall, can be taken into account. As a result of the abovementioned torque support, the disturbing forces responsible for further stresses are used to reduce the rotational resistance which counteracts rotation of the support or support plate about the vertical axis, with the result that comparatively easily a rotating stroke unlocking the front shoe or sole holder - And support plate and thus a release of the shoe can be achieved.

Otherwise, with regard to preferred features of the invention, reference is made to the claims and the following explanation of the drawing, with reference to a particularly preferred embodiment and some possibilities of modification are described in detail. Protection is claimed not only for feature combinations expressly stated in the claims or the description. Rather, the protection of the present invention is intended to refer to any sub-combinations of the illustrated feature combinations in principle.

Fig. 1

eine Draufsicht auf die Oberseite einer erfindungsgemäßen Bindung,

Fig. 2

eine zugehörige Seitenansicht,

Fig. 3

eine zugehörige Draufsicht auf die Unterseite der Bindung,

Fig. 4

eine Heckansicht der Bindung entsprechend dem Pfeil IV in Fig. 1,

Fig. 5

eine Frontansicht der Bindung entsprechend dem Pfeil V in Fig. 1,

Fig. 6

ein Schnittbild entsprechend der Schnittlinie VI-VI in den Fig. 1 und 2,

Fig. 7

eine perspektivische Draufsicht auf die erfindungsgemäße Bindung bei oberseitig geöffneter Stand- bzw. Tragplatte,

Fig. 8

eine schematisierte Schnittdarstellung einer Drehmomentabstützung der Stand- bzw. Tragplatte,

Fig. 9

eine perspektivische Explosivdarstellung der Unterseite einer mit der erfindungsgemäßen Bindung zusammenwirkenden Skischuhsohle und

Fig. 10

eine perspektivische Darstellung der Sohlenunterseite sowie der mit sohlenseitigen Beschlagteilen zusammenwirkenden vorderen und hinteren Sohlenhalter.

In the drawing shows

Fig. 1

a top view of the top of a binding according to the invention,

Fig. 2

an associated side view,

Fig. 3

an associated plan view of the bottom of the binding,

Fig. 4

a rear view of the binding according to the arrow IV in Fig. 1,

Fig. 5

a front view of the binding according to the arrow V in Fig. 1,

Fig. 6

a sectional view corresponding to the section line VI-VI in Figs. 1 and 2,

Fig. 7

a perspective top view of the binding according to the invention at the top open stand or support plate,

Fig. 8

a schematic sectional view of a torque support of the stand or support plate,

Fig. 9

an exploded perspective view of the underside of a cooperating with the inventive ski boot sole and

Fig. 10

a perspective view of the sole bottom and cooperating with the sole side fitting parts front and rear sole holder.

The binding according to the invention has a arranged on a in Fig. 2 partially indicated ski 1 base plate 2, which pivotally connected at its front longitudinal end in the ski longitudinal direction with a skifest bearing part 3 about a Skiquerachse and at its rear end in the ski longitudinal direction with displacement in the longitudinal direction in another skifesten bearing part 4 is held vertically.

On the base plate 2 a about a vertical axis of the base plate 2 rotatable stand or support plate 5 is arranged, the top serves as a support or support surface for the sole of a ski to be used in the ski binding. The standing or supporting plate 5 has a plate base 5 'designed as a frame and structural part and an upper covering part 5' ' Plate part 5 'is arranged, wherein the pivot bearing may be formed, for example, that on the plate base 5' an underside circular-shaped elevation is formed, which engages in a corresponding circular recess in the base plate 2 and fixed to a arranged on the underside of the base plate flange plate 6 (Fig. see Fig. 3), which overlaps the aforementioned circular recess of the base plate 2 radially outward.

The stand or support plate 5 is held by a detail further explained below, first latching device 7 in the middle position shown in FIGS. 1 and 3, but can against the resistance of the aforementioned locking device 7 according to the arrows Q in Figs. 1 and 3 be rotated relative to the longitudinal axis of the ski or the base plate 2.

Front and rear sole holders 8 and 9 are arranged on the standing or support plate 5, which in their position of use (cf., for example, FIGS. 1, 2 and 10), the sole 10 of a fix the shoe used in the binding practically immovable on the stand or support plate 5.

In the embodiment of FIGS. 1, 2 and 10, the front sole holders 8 are pivotable about axes 11 extended in the longitudinal direction of the support plate 5 into a release position sideways of the support plate 5, while the rear sole holders 9 are pivoted about an inward one Plate transverse direction extended axis 12 can be tilted in a release position.

As will be described in more detail below in explanation of the first latching device 7, the front sole holder 8 are locked in their position of use when the stand or support plate 5 is its normal position shown in FIGS. 1 and 3 or a position within a for the elasticity of the Bond provided pivoting range occupying both sides of the normal position. Once this pivoting range is exceeded to the right or left, the front sole holder 8 are unlocked so that they can easily fold into their release position or can be moved.

The rear sole holders 9 cooperate with a second locking device 13 explained in more detail below and with an actuating lever 14. With correspondingly large disturbing forces or moments acting on the rear sole holders 9, the rear sole holders 9 are tilted in a clockwise direction in FIG. 2 into a release position which is self-holding. Incidentally, the rear sole holders 9 are switched by the operating lever 14 between use and release position.

According to FIGS. 9 and 10, the sole 10 of the ski boot to be worn in the binding has recesses 15 open in the ball area or at a greater distance from the toe-side sole end to the underside of the sole and the sole longitudinal edges, as well as a depression 16 open at the bottom and to the aforementioned recesses 15 with a flat bottom, which is provided with mounting holes 17 for screws or the like. In the recess 16, a fitting plate 18 is arranged and secured by screws, not shown, or the like, which are screwed into the mounting holes 17. The fitting plate 18 has a slightly wedge-shaped front edge 18 ', whose corner areas are positively received by corresponding recesses of the front sole holder 8 when the front sole holder 8 occupy their position of use and the sole 10 in sole longitudinal direction with the front edge 18' of the fitting plate 18 in the aforementioned Recesses of the sole holder 8 is inserted, wherein the sole 10 with one of the fitting plate 18 adjacent bottom portion 10 'on the top of the stand or support plate 5 near the front sole holder 8 is seated flat.

The aforementioned positive connection between the corner regions of the front edge 18 'of the fitting plate 18 and the recesses of the front sole holder 8 is formed such that the Sole 10 is secured against displacement in forward, sideways, and vertical directions.

At the rear of the sole 10 10 open recesses 19 are arranged downwards and to the side edges of the sole, which go into a recess remote from the rear sole end, open to the recesses and the sole bottom recess 20 which has a flat bottom with mounting holes 21 for screws or the like. In this recess 20, a fitting plate 22 is arranged and fixed with screws, not shown, or the like, which are screwed into the aforementioned mounting holes 21. The fitting plate 22 has a T-shape in plan view, such that on the fitting plate 22 angular bays 22 'are formed.

In their position of use overlap the rear sole holder 9 when inserted into the binding shoe the upward facing side of the fitting plate 22 from above in the bays 22 ', wherein the sole longitudinally extending edges of the bays 22' on the mutually facing flanks of the rear sole holder and the longitudinally extending in the sole transverse edges of the bays 22 abut the in use position substantially vertical front edges of the rear sole holder 9 and a front of the fitting plate 22 extended bottom portion 10 "of the sole 10 on the top of the stand or support plate 5 near the rear sole holders. 9 Accordingly, the rear sole area is by positive engagement between the fitting plate 22 and the rear sole holders 9 held against movement in the backward, sideways and vertical direction.

The sole 10 essentially only needs to be stiff between the fitting plates 18 and 22, such that the fitting plates 18 and 22 always have a reproducible position relative to the regions 10 'and 10 "on the underside of the sole 10 and accordingly with backlash-free positive locking The sole areas 8 and 9 can cooperate in front of and behind the fitting plates 18 and 22. In particular, the underside of the sole can be arched in these areas such that a rolling movement of the foot during walking is facilitated.

The first latching device 7 has, according to FIG. 7, a spring housing 23 which is fixedly arranged on the plate lower part 5 'of the stationary or support plate 5 and which receives a helical compression spring 24. One end of the helical compression spring 24 is supported on a displaceable by means of adjusting screw 25 in the longitudinal direction of the spring housing 23 spring abutment, so that the spring tension can be changed with a screw which on the rear edge of the support or support plate 5 accessible head 25 'of the screw 25 is attachable. The other end of the helical compression spring 24 is stretched according to the separate detail in Fig. 7 against a displaceable in the spring housing 23 piston 26, which in turn is biased by the spring force against a facing cross member of a rocker arm 27, wherein the aforementioned Transverse member of the rocker arm 27 engages in a transverse slot on the facing side of the piston 26. The cross member of the rocker arm 27 cooperates with as part of the spring housing 23 fixedly arranged tilting axes 28 and 29 which engages around the cross member of the rocker arm 27 in its normal position with corresponding, approximately semicircular recesses. The helical compression spring 24 and the piston 26 acted upon by it seek to hold the cross member of the rocker arm 27 in abutment with both tilt axes 28 and 29. If the rocker arm 27 is pivoted by corresponding forces about one of the tilting axes 28 or 29, the piston 26 is pushed back against the force of the helical compression spring 24 as soon as a preload of the helical compression spring 24 is exerted on the rocker arm 27.

The rocker arm 27 engages with a fork-shaped end fixedly arranged on the base plate 2 pin 30. Accordingly, the rocker arm 27 must be deflected from its normal position shown in Fig. 7 under pivoting about the tilting axis 28 or 29 when the stand or support plate. 5 on the base plate 2 performs a rotational movement about the flange plate 6 (see Fig .. 3) passing centrally through the vertical axis.

As a result, therefore, the stand or support plate 5 only perform a rotation about the aforementioned vertical axis on the base plate 2, when acting on the stand or support plate 5, a sufficient torque whose dimension is determined by the bias of the helical compression spring 24. As soon as This measure is exceeded, there is a more or less large swing stroke of the stand or support plate. 5

At a fixed to the plate base 5 'of the stationary or support plate 5 part a yoke 31 is pivotally mounted about a longitudinal plate axis. By a leg spring 32, the yoke 31 is urged into the normal position shown in Fig. 7. The ends of the yoke 31 cooperate in the manner of cams with a fixedly arranged on the base plate 2 scenery or guide cam 33, such that the yoke 31 performs a pivoting movement in one or the other direction when the stand or support plate 5 in one or the other direction is pivoted relative to the base plate 2.

The yoke 31 is non-rotatably coupled to a recognizable in Fig. 6 control disc 34 which has to its pivot axis 35 centric circular arc-shaped edge portions 34 'and adjoining, to the pivot axis 35 almost radial edge portions 34 ".

In the normal position of the yoke 31 and the control disk 34 are the edge portions 34 'at associated edges 8' of FIG. 6 double lever-like front sole holder 8, so that they are locked in their position of use. If the stand or support plate 5 is pivoted sufficiently far relative to the base plate, the control disc 34 performs such a large pivoting stroke that one of the front sole holder 8 from the associated edge portion 34 of the control disc 34 comes freely and with its control-disk-side end on the adjacent edge portion 34 "slide and can accordingly perform a pivoting movement into its release position. Support plate 5 each of the sole holder 8 tilts or tilt in its release position, which is arranged on the pointing in the respective pivoting edge side of the stand or support plate 5.

The second locking device 13, which controls the rear sole holder 9, has a helical compression spring 36, which is clamped between a displaceable by means of adjusting screw 37 on the lower part 5 'of the stand or support plate 5 abutment 38 and on the plate bottom 5' displaceable piston 39 , The threaded portion of the screw 37 is non-rotatably and axially fixedly connected to the abutment 38 and carries an externally accessible adjusting nut 37 ', which is rotatably mounted axially rotatably on the rear side of the stand or support plate 5, so that by screw adjustment of the adjusting nut 37' on the adjusting screw 37, the distance of the abutment 38 of the adjusting nut 37 'and thus the bias of the helical compression spring 36 can be adjusted.

The piston 39 has on its the rear sole holders 9 facing end face a backdrop-like guide surface which cooperates with a not visible in Fig. 7 cam member, which is arranged on one of the rear sole holder 9 with each other rotationally fixed and optionally integrally molded with the sole holders 9 connecting piece 40. In this case, the cam part and the cam surface cooperate in such a way that the piston 39 first has to perform a comparatively large stroke against the pressure force of the helical spring 36 when the rear sole holders 9 are pivoted backwards from the position of use shown in FIG. 7 by a comparatively small amount , Upon further pivoting of the rear sole holder a dead center between the cam part and backdrop-like Kuvenfläche is traversed. Thereafter, the cam portion of the rear sole holder 9 cooperates with a portion of the cam surface such that the piston 39 is urged by the helical compression spring 36 to the rear and the rear sole holder 9 in its release position.

If necessary, the rear sole holder 9 can also be triggered manually or by means of a ski pole, which is placed for this purpose in a recess at the free end of the actuating lever 14 to depress the lever 14 against the ski top.

By lifting the lever 14, the rear sole holder 9 may optionally be brought manually into its position of use.

Incidentally, the rear sole holder 9 when inserting the shoe also by the shoe from its release position in the position of use are adjusted. At the rear recesses 19 of the shoe sole 10 stop steps 19 'are formed, which cooperate with the in Fig. 10 obliquely upwardly facing edges of the rear sole holder 9 so that they are inevitably changed over to their operating position when the shoe with the front fitting plate 18th is pushed into the front sole holder 8 and then depressed with his heel area against the top of the stand or support plate 5. The binding according to the invention is thus designed as a so-called step-in binding.

When skiing act on the stand or support plate 5 more or less large torques with respect to a Skiquerachse. When the skier drives with the template, the front end of the stand or support plate 5 is urged against the ski top. On the other hand, when the skier has a reserve, forces and moments acting on the standing or carrying plate 5 that seek to lift the front end of this plate 5 off the ski 1 act.

Correspondingly reversed forces occur at the rear end of the stand or support plate 5.

According to an advantageous embodiment of the invention, a torque support 41 can now be provided with which torques acting on the support or support plate 5 with respect to the transverse axis are converted into torques with respect to the vertical axis.

As can be seen from the sectional view in FIG. 8, a profile strip 42 extending in the transverse direction of the plate is fixedly arranged on the support or support plate 5, each having two elevations 43 and 44 with lateral oblique flanks both on its upper side and its underside have a horizontal section extending therebetween. On the base plate 2 cooperating with the elevations 43 and 44 counter-elevations 45 and 46 are arranged.

In Fig. 8, the position of the projections 43 and 44 is shown relative to the counter-elevations 45 and 46 for the (normal) case that the support or support plate 5 relative to the base plate 2 assumes its normal untwisted position, ie the longitudinal axes of the two plates 2 and 5 fall in a plan view of the ski 1 into each other. In this case, the horizontal portions of the projections 43 and 44 lie on the corresponding portions of the counterbumps 45 and 46. Regardless of the extent of any vertical forces that push the front end of the stand or support plate 5 against the top of the ski or seek to lift off the top of the ski and thus lead to corresponding pressing forces between the horizontal portions of the opposing protrusions 43 to 46, then no effective torque can be generated, which seeks to turn the stand or support plate 5 about its vertical axis. However, if the stand or support plate 5 is pivoted against the resistance of the first latching device 7 slightly about the vertical axis, the oblique edges of the opposing elevations 43 to 46 interact with each other, so that a Torque about the aforementioned vertical axis arises as soon as the front end of the stand or support plate 5 is pushed with the profile strip 42 downwards or lifted upwards.

As a result, it is achieved that in a forward or backward fall of the skier an additional torque with respect to the vertical axis acts on the stand or support plate as soon as the stand or support plate 5 has already been deflected to a certain extent from its central position. This additional torque counteracts the restoring forces generated by the first locking device 7, so that the standing or support plate 5 can be easily brought into the rotational position in which a front shoe or sole holder 8 unlocked and the shoe is released from the binding ,

Deviating from the illustration of FIG. 2, the bearing part 4 may optionally also be adjustable, such that it releases the rear end of the base plate 2 in a release position and the base plate 2 accordingly together with the stand or support plate 5 about the hinge axis of Bearing part 3 is swung open. Thus, the binding according to the invention can optionally also be used as a tour binding.

In the embodiment illustrated in the drawing, the front sole holders 8 are pivotable about axes extending in the longitudinal direction of the support or support plate 5. Basically It is also possible to provide vertical axis or oblique axes pivotable front sole holder.

Claims (11)

1. A disengageable ski binding having a standing and/or carrying plate (5) which is provided as a standing surface for a ski boot and is arranged on a base part (2), which is mounted on the ski and/or can be securely firmly on the ski, such that it can be rotated about a vertical axis of the base part counter to an adjustable resistance of a latching device (7), and having front and rear boot and/or sole holders (8, 9) which are arranged on the standing and/or carrying plate (5) and are disengageable under rotation about horizontal axes and which, in a use position, interact in a form-fitting manner with mating surfaces or elements (18, 22) on the boot and/or boot sole and fix these essentially firmly on the standing and/or carrying plate, wherein the front boot and/or sole holders (8) are rotatable about horizontal longitudinal axes, and are locked within a predetermined angle-of-rotation region of the standing and/or carrying plate (5), without affecting the resistance of the said latching device (7), and are unlocked outside the region of rotation.
2. Ski binding as claimed in claim 1, wherein the rear sole holders (9) can be adjusted into a release position counter to an adjustable resistance of a second latching device (13), which is separate from the said latching device (7).
3. The ski binding as claimed in claim 2, wherein the rear sole holders (9) can be disengaged only in the vertical direction.
4. The ski binding as claimed in claim 1 to 3, wherein the standing and/or carrying plate (5) on the base part (2) is assigned a moment support (41) by means of which torques which act on the standing and/or carrying plate (5) in respect of a transverse axis are converted into torques in respect of the vertical axis of the standing and/or carrying plate (5), which assist the standing and/or carrying plate (5) to rotate further about the vertical axis, as soon as the standing and/or carrying plate leaves a central position, or a central position region, with rotation about its vertical axis.
5. The ski binding as claimed in claim 4, wherein the moment support is effective when the skier falls in the forward direction.
6. The ski binding as claimed in claim 4 or 5, wherein the moment support is effective when the skier falls in the rearward direction.
7. The ski binding as claimed in one of claims 1 to 6, wherein the rear boot and/or sole holders (9) have a latchable release position, from which they can be adjusted into the use position, when the skier steps into the binding, by interaction with at least one stop (19') on the boot.
8. The ski binding as claimed in one of claims 1 to 7, wherein the rear boot and/or sole holders (9) are assigned a manually actuable actuating lever (14).
9. The ski binding as claimed in one of claims 1 to 8, wherein the rear boot and/or sole holders (9) can be pivoted about a transverse axis.
10. The ski binding as claimed in one of claims 1 to 9, wherein the base part is designed as a base plate (2) which bears the standing and/or carrying plate (5) and which is connected at its front end to a bearing part (3), which is mounted on the ski and/or can be fitted firmly on the ski, such that it can be pivoted about a transverse ski axis, and which can be arrested firmly on the ski at its rear end by means of a further bearing part (4).
11. The ski binding as claimed in claim 10, wherein the further bearing part (4) can be adjusted between a position in which the base plate (2) is locked and one in which the base plate (2) is released.

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