DE3102010A1 - "SAFETY SKI BINDING" - Google Patents

Abstract

This safety ski binding comprises a sole plate (10) movable in a horizontal plane and secured to the ski in a non-detachable way. At the extremity situated on the heel side of the sole plate (10) is provided a heel support which is movable in a vertical plane and comprises a first locking element (26) engaging a surface (28) of a spring click arranged on the sole plate. On the sole plate is arranged a second locking element (38, 42) which is actuated by a separated spring (40) and engages a surface bound to the ski. Due to the motion of the sole plate in a horizontal plane, the second locking element releases the click, therefore its biasing force is suppressed and the heel support releases the ski shoe.

Description

31U2010

The invention relates to a safety ski binding with a pivotable in a horizontal plane Sole plate that is inextricably linked to the ski and with a sole holder attached to the sole plate for the heel-side end of the sole of a ski boot, with a first locking element that is with a locking surface on a spring-loaded, on the Soleplate hinged latch cooperates and a pivoting of the sole holder in a vertical plane monitored and with a second locking element, which is attached to a second locking surface on the ski cooperates and monitors pivoting of the sole holder or the sole plate in the horizontal plane.

A safety ski binding is known (DE-AS 22 20 040), which has a base body on the heel side, which on a base plate is mounted pivotably about a vertical axis and on which a sole holder for the heel-side The end of the sole of a ski boot is articulated in such a way that it is about a horizontally directed axis is pivotable, whereby it releases the ski boot when triggered. The vertical deflection is due to the interaction a latching element and a spring-loaded latching surface formed on a pivotable pawl supervised. When the sole holder is swiveled up, the pawl is held against the force of a spring by the locking element ' pushed to the side. Another latching element is attached to the sole holder, which is attached to the ski with one The cam track interacts in such a way that in the rest position no lateral force whatsoever is reached until a certain transverse force is reached Deflection takes place and only when a certain size of the transverse force is exceeded is a lateral displacement

pivoting of the sole holder takes place, whereby the rolling of the second locking element on the curved path the sole holder is pivoted vertically and the spring loading the pawl is compressed. When exceeding After a certain limit force, the sole holder is also triggered in the vertical plane. In the case of a pure vertical deflection of the sole holder, as occurs with frontal loading, the lateral guide of the sole holder completely canceled, so that an undefined "floating" state occurs that can easily lead to accidental loosening. A coordination of lateral and height elasticity is not possible with such a bond.

There is also a safety ski binding known (DE-AS 24 29 609), in which the sole holder for the heel-side end of the sole of a ski boot is constructed in two parts, which engages with the sole standing part about a vertical axis and the second part of the sole holder pivotable about a horizontal axis is. The lateral pivoting, ie a pivoting of the sole holder in a horizontal one The level is monitored by a spring-loaded ball catch. The pivoting of the sole holder in the The vertical plane is monitored by a spring-loaded angle lever sliding on an inclined plane. That The free end of the angle lever slides when pivoting vertically on the securing ball catch Spring downwards, the spring characteristics of this spring changing accordingly. With increasing If the sole holder is pivoted vertically, the lateral release force gradually decreases. However, this bond has the disadvantage that they do not have any side elasticity

has and that only an influence on the lateral release force by vertical deflection of the sole holder is possible, but there is no possibility of action in the opposite direction. Furthermore the design of the known binding is prone to failure, since the characteristic of the side pivoting monitoring leaf spring is difficult to adjust.

Another ski safety binding is known (US Pat. No. 3,689,095) in which a spherical locking element cooperates with a locking surface in the sole holder is formed, wherein the sole holder for the rear end of the sole of a ski boot is cardanic is hinged to a base body attached to the ski. The recess is designed so that at increasing vertical deflection interacting with the ball. Latching surfaces are inclined more flatly, so that the lateral force required for a side release decreases. Although in principle the lateral release force as a function of the vertical deflection is due to a suitable shape of the recess can be set and vice versa the vertical force required for triggering a function the side deflection can be, have such Bindings are not enforced, since extremely high accuracy requirements are placed on the shaping of the corresponding locking surfaces, which is the case with such mass-produced articles are not feasible. As a result of the point loading between the locking element and the locking surface occurs high wear, which makes the bond prone to failure. A subsequent change in the relationship between vertical and lateral release force is not possible.

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The invention is based on the object of providing a safety ski binding of the type indicated at the beginning Art to develop in such a way that with sufficient elasticity against vertical and lateral deflection a mutual influence of the release forces is possible in such a way that with increasing Lateral deflection of the binding the release force decreases with vertical deflection and vice versa with increasing Vertical deflection of the binding the release force for a lateral pivoting decreases.

According to the invention, this object is achieved by the characteristics of claim 1 provided features solved. Due to the arrangement according to the invention Even with a twisting fall, there are defined force relationships in every phase, with a deflection of the sole holder in a vertical plane or horizontal plane in each case a decrease in the corresponding Trigger force in the other plane causes. By providing two separate springs for the locking elements the ratio of the lateral to the vertical release force can be set individually and tailored to the appropriate driving ability and driving style.

Advantageous further developments of the invention are characterized in the subclaims. The described Embodiment of the invention has the advantage that with the greatest constructive simplicity and operational safety, a mutual influence of height and horizontal deflection is ensured at all times by the fact that the ski boot sole is released locking, locking device between the two

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Tabs of the pawl is displaced in such a way with a pure vertical deflection of the sole holder, that it comes into the immediate vicinity of an extension formed on the second latching element. One Slight lateral pivoting of the soleplate then releases the locking device, whereby the sole holder folds up and releases the ski boot sole. With a pure horizontal swivel The extension of the soleplate is displaced in such a way that it is finally in the immediate vicinity of the locking device comes, which is preferably designed as a toggle lever. becomes a certain horizontal deflection exceeded, the knee lever is unlocked and the sole holder opens again by opening the ski boot sole free in the vertical plane.

In a particularly preferred embodiment, the soleplate is around one placed below the heels on the ski Pivot pivotable and carries at the front end a holding element for the front edge of the ski boot sole, which tilts with a corresponding pivoting of the soleplate in a vertical plane and one Releasing the ski boot sole is even easier.

An exemplary embodiment of the invention is described below with reference to the accompanying drawing, for example. Show in it:

Fig. 1 is a schematic vertical longitudinal section through the security

binding with clamped shoe in neutral position,

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FIG. 2 shows a section similar to FIG. 1 immediately before the ski boot sole is released with pure vertical deflection,

Fig. 3 shows a section similar to FIG. 1, but in the unfolded or einstiegsbe

rider position,

FIG. 4 shows a section similar to FIG. 1

maximum lateral deflection of the soleplate and no vertical deflection of the sole holder immediately before free

giving the ski boot sole,

Fig. 5 shows a section similar to Fig. 1 immediately before the release of the ski boot sole, which, however, is arbitrarily effected by hand, Fig. 6 shows a horizontal section through the axis on which the pawl is articulated, the manual opener and the release mechanism being omitted in the case of horizontal pivoting,
7 shows a horizontal section through the axis,

to which the second latching element is articulated, with all parts of the trigger mechanism for vertical pivoting are omitted,

8 shows a vertical section through the holding element for the front sole edge,

9 shows a plan view of the holding element according to FIG. 8, partly in section and

Fig. 10 is a graphic representation of the mutual influence of horizontal and vertical deflection.

The binding shown in the drawing is a so-called plate binding, in which a sole plate 10 around a Trunnion 12 pivotable in a horizontal plane

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the ski 14 is attached. In the present case takes place the attachment via a base plate 16 which is screwed to the ski and on which the Trunnion 12 is welded on. At the rear end of the soleplate 10, a housing 18 is attached, which the release mechanism for the sole holder 20 receives. The sole holder 20 .st a fixed to the housing Axis 22 can be pivoted in a vertical plane. 2 and 3 are different pivot angles of the sole holder shown.

The outer contour of the sole holder 20 is chosen so that it is aligned with the rear edge of the sole of a ski boot can come into engagement and this clamps on the soleplate 10. The abutment for the sole holder 20 is formed by a holding element 24 which is hinged to the front end of the sole plate and which is shown in FIGS. to 4 as well as 8 and 9 is shown in more detail and its function is described below.

In the sole holder 20, a roller is rotatably mounted on a transverse axis, which roller represents a first locking element and which cooperates with a first latching surface 28 which is formed on a spring-loaded pawl.

The pawl consists of two pairs suspended pivotably on a transverse axis 30 in the sole holder 20 Tabs 29,31. The first locking surface 28 is formed on one tab 29, while the free end of the other 0 tab 31 represents a stop for a base plate, which is supported by a first spring mounted in the housing 18 is applied. The axis 22, about which the sole holder 20 can rotate, penetrates accordingly

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formed elongated holes in both tabs / so that the tabs with the axis 22 in no direct Come into contact.

Both pairs of tabs are each connected to one another via a pair of two-armed toggle levers 3 3. In a first, in Figs. 1 to 5, the lower position of the toggle lever, the two tabs of the pawl are in their fixed mutual position, while in an upper position of the toggle lever 3d relative to each other around the Axis 30 can be pivoted. The toggle lever is preloaded by a spring indicated by dashed lines in such a way that that it fixes the tabs in their mutual position.

As can be seen in particular from FIG. 6, the pairs of tabs are symmetrical: u a vertical center plane arranged and connected to one another by corresponding quick-release axles. This construction delivers Greatest structural simplicity, only stamped parts need to be used, high stability and functional reliability.

The mutual position of the roller 26, the locking surface and the free end of that tab 31, which the The base plate of the spring 32 is applied, is selected so that when the sole holder is forced upwards, For example, in the event of a frontal fall of the skier, the roller 26 is rotated upwards about the axis 22, wherein the locking surface 28 is pressed to the right in the drawing. Because the two that form the handle Lugs 29,31 by the toggle lever 33 in their mutual

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Position are fixed, presses when the locking surface 28 is pushed back, the free extension of the a tab 31 on the base plate of the spring 32 and presses it against a correspondingly increasing spring force together. The contour of the locking surface 28 determines the characteristics of the release force with vertical swivel movement. In Fig. 2 that position of the sole holder is shown in which the Roller 26 is located in the apex of the locking surface 28. From this position the sole holder 20 snaps under action the spring 32 either back to its position shown in FIG Clamping position back or in its open position shown in FIG. 3. The movement of the sole holder 20 in the open position by cen pressure of the spring 32 is formed as a stop, fixed to the housing Cross axis 3 5 caught. This transverse axis is located ■ near the free end of that tab 31, which the base plate the spring 32 is applied and can absorb the spring force without difficulty.

In the embodiment shown, the behavior of the locking surface 28, the Entry path to release path as 4: 1, i.e. the entry forces are much lower than the release forces, which increases the comfort when using the binding.

An angle lever 3 4, the free leg of which is designed as an extension 36, is pivotably mounted on the transverse axis 3 5 which can come into engagement with the toggle lever pair 3 3 when the angle lever 34 is pivoted. the Training of the Winkelhebeli. 34 results from FIG. 7. The extensions 36 in turn form a pair that is symmetrical to the central vertical plane · is arranged. The angle-

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However, lever is a single integral component. The extensions 36 are located directly in plan view below the pairs of toggle levers 33.

Below the angle lever 34, in the center of the apex of the angle lever, there is a roller 38 as a second latching element attached with an approximately vertical axis. The roller 38 acts with one formed on the base plate 16 Curved path together, the course of which is shown in dashed lines from Fig.

can be seen. The curved path has an approximately V-shaped contour, so that the roller 3 8 is centered in the central position will. The cam track provides a second locking surface for represents the second locking element or the roller 38.

The angle lever 34 is loaded by a second spring 40 arranged coaxially within the spring 32 so that that the roller 38 is pressed against the curved path of the base plate 16 with a certain force. The spring force is transmitted via a spring finger 42, the lower end of which acts on the angle lever in the shape of a fork and the shaft of which is arranged in the interior of the spring 40.

It is also possible to design the spring finger 42 in such a way that the spring 40 extends on a along the Shank of the spring finger screwable shoulder supported, so that the bias of the spring 40 can be adjusted completely independently of the spring 32 (not shown).

The counter bearing for the springs 32 and 40 is formed by a plate 44, which by means of a threaded screw can be adjusted in the axial direction of the springs. By turning the screw 46, the preload is thus

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probably the spring 40 as well as the spring 32 in the same way, i.e. without changing the ratio of the changed both spring forces. If the ratio of the two spring forces is to be changed, for example the spring 40 arranged on the inside by an adjustable shoulder arranged on the shaft of the spring finger 42 can be changed in length.

If the skier falls, the sole plate will 10 rotated about the pivot 12, which leads to the fact that the roller 38 migrates laterally on the curved path. As a result, the angle lever 34 is pivoted (to the right in the drawing), whereby the spring 40 is compressed and the horizontal pivoting of the sole plate opposed an increasing restoring force. By pivoting the angle lever 34, however, approaches At the same time, the extension 36 is the one above it Knee lever 33. If the lateral Auslenkuna continued up to the point at which the extension 36 in direct Engagement with the toggle lever 3 3 comes, which state is shown in Fig. 4, the extension 36 pushes the Knee lever 3 3 up, causing the two ,, the pawl forming tabs 29,31 are decoupled and the locking surface 28 can evade to the right. This leads under effect a relatively strong spring placed around the main axis of rotation 22 for pivoting the sole holder 20 and up thus to a release of the ski boot.

The toggle lever 34 is designed so that even when the sole holder 20 is only pivoted vertically, i.e., when pivoting about the axis 22 or axis, it is brought closer to the extension 36. Therefore step in the case of an already carried out, within the elasticity

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area lying vertical pivoting of the sole holder additionally a horizontal pivoting the soleplate, as a result of the smaller distance between extension 36 and lever 3 3 of the Knee lever 3 3 already opened before reaching the maximum horizontal deflection and thus the release of the shoe. In the case of a twisting fall, there is a vertical release force as well as a horizontal one Release force reduced accordingly. 10 shows this relationship in a simplified graphic Depiction. The vertical or lateral deflection is plotted as the path and on the abscissa on the ordinate the horizontal and vertical release force as a percentage of the maximum value. From this It can be seen that in the event that there is no horizontal deflection, the vertical Release force is 100%. At maximum lateral deflection, however, the vertical release force decreases down to 0. By appropriate design of the two locking surfaces and the arrangement of extension 36 and toggle lever 34, the curve shown only qualitatively in FIG. 10 can be changed as desired, so that any desired Relationship between vertical and horizontal release can be set.

For an arbitrary opening of the binding when unbuckling of the ski boot, a hand opener 48, which can be pivoted about an axis 50 in the housing 18, is acted upon. The lever 48 has a free extension which comes into engagement with the toggle lever 3 4 and this pushes upwards so that the two tabs of the pawl are decoupled. The locking surface 28 is out of the way

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the roller 26 pushed out to the right when the sole holder 20 under the action of the axis 22 placed spring rotates upwards. After actuation of the hand opener 48, the one assigned to the toggle lever 34 presses Spring it back into the locking position., I.e. the position in which the the two tabs 29,31 of the pawl are fixed in their mutual position. 5 shows how the hand opener 48 pushes the toggle lever 3 3 upwards, which shifts the latching surface 28 out of the path of the roller 26 enables. If the shoe is removed from the binding upwards from the position shown, the sole holder snaps 20 upwards into the position shown in FIG. 3.

The holding part 24 for the front edge of the sole of the ski boot is via a transverse axis 52 at the front end of the Soleplate 10 is articulated so as to be pivotable. In the position shown in Fig. 8, the front edge of the ski boot held down by an extension 54 and clamped on the soleplate 10. The holding element 24 has a horizontal axis which is arranged approximately in the vertical center plane of the ski. on A roller 58 is rotatably mounted on this axis 56, the roller 58 rolls on a roller that is firmly screwed to the ski Counter surface 60 from. The counter surface 60 is horizontal, so that with a horizontal lateral pivoting of the sole plate the holding element 24 in the position shown in FIG The position shown remains as long as the roller 58 and the mating surface 60 are in engagement. In case that the horizontal pivoting of the sole plate is so great that the rear sole holder 20 releases the ski boot, the roller 58 and the mating surface 60 also come out of engagement. The holding element 24 can be around the Pivot axis 52, whereby the extension 54 the front

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the edge of the sole releases. A perfect solution the ski boot from the binding is supported. Fig. 4 shows that position of the retaining element 24, in which the roller 58 ran laterally over the counter surface 60 and the holding element is tilted accordingly.

Lee on the side

Claims (14)

- PATENi ¹ LAWYERS DR. KADOR & DR. KLUNKER K 13 164 / 7we Roland Jungkind Bärenalpstrasse 3 8100 Garmisch-Partenkirchen Safety ski bindings Claims M.) Safety ski binding with a sole plate which can be pivoted in a horizontal plane and which is inextricably linked with the ski is connected to a sole holder attached to the sole plate for the heel-side end of the Sole of a ski boot, with a first latching element that has a latching surface on a spring-loaded one the pawl hinged to the sole plate cooperates and monitors pivoting of the sole holder in a vertical plane and with a second latching element that cooperates with a second locking surface attached to the ski and a pivoting of the sole holder or the Soleplate monitored in the horizontal plane, characterized in that .the second locking element (38) in a housing (18) attached to the soleplate (10) arranged and biased by a separate spring (40) is and when pivoting the soleplate (1 O) in the The horizontal plane interacts with the pawl (29,31) in such a way that that the spring loading of the pawl (29,31) is canceled and the sole holder (20) the ski boot releases. 2. Ski safety binding according to claim 1, characterized characterized in that the pawl has a first tab (29) with the first latching surface (28) and a second tab (31) which is acted upon by a spring (32) and furthermore a locking device (33), which fixes both tabs (29,31) either in a certain position to one another or a relative movement both tabs (29,31). 3. Ski safety binding according to claim 2, characterized in that the locking device is a toggle lever (29,31). 4. Ski safety binding according to one or more of claims 1 to 3, characterized in that it is marked, that the second latching element (38) has an extension (36) which, when the latching elements are in the appropriate position (38,26) unlocks the locking device (33) on the latching surfaces (28). 5. Ski safety binding according to one or more of claims 1 to 4, characterized in that that the locking device (33) and the extension (36) of the second locking element (38) when clamped Sole and rest position have a certain distance from each other, which is the vertical pivoting of the sole holder (20) and / or HörizontalverSchwenken the soleplate (10) decreases until locking device (33) and extension (36) come into engagement. 6. Ski safety binding according to one of claims 3 to 5, characterized in that the extension (3 6) acts on the toggle lever (33) and unlocks it when it comes into engagement. 7. Ski safety binding according to one or more of claims 2 to 6, characterized in that the first and second tabs (29, 31). the The pawl is designed as a one-armed lever and can be pivoted on a common axis (30) fixed to the housing are. 8. Ski safety binding according to one or more of claims 1 to 7, characterized in that that the springs (32, 40) are arranged coaxially to one another and can be adjusted independently of one another. 9. ski safety binding according to one or more of claims 1 to 8, characterized in that that the second locking element is an angle piece (34) which at the end of a leg about an axis (35) is pivotably mounted, the other free leg of which forms the extension (36) which is connected to the locking device (33) comes into engagement and that approximately in the apex of the elbow (34) a roller (38) is arranged, which rolls on the second locking surface and that the angle piece (34) through the separate spring (40) is held in a defined position. 10. Ski safety binding according to one or more of claims 1 to 9, characterized by one swiveling against the force of a return spring ble manually operable lever (48), which when actuated the locking device (33) is unlocked. 11. Ski safety binding according to one or more of claims 1 to 10, characterized net that the tabs (29,31) of the latch and the toggle lever (33) each arranged in pairs symmetrically to the central vertical plane in the housing (18) and through Thru axles are kinematically connected. 12. Ski safety binding according to one or more of claims 1 to 11, characterized in that that on the sole plate (10) a holding element (24) for the toe-side end of the sole of a ski boot is articulated, which can be pivoted in a vertical plane and thereby releases the leading edge of the sole. 13. Ski safety binding according to claim 12, characterized in that the holding element (24) is tiltable about a vertical axis (5 6) directed horizontally to the ski (14) and has a hoe (58), which cooperates with a cam track (60) attached to the ski in such a way that tilting of the holding element (24) can only take place with a certain pivoting of the soleplate (10) in the horizontal plane. 14. Ski safety binding according to claim 13, characterized in that the cam has a role (58) that is on a horizontal mating surface (60) · rolls off and the counter surface (60) only in the pivoting range the sole plate (10) is arranged in which the binding does not release.