EP0829282B1 - Shoe support unit of a releasable ski binding - Google Patents

Abstract

The shoe holder arrangement (104,106), for instance a section (106) or sections (104) and abutment (115,119), may work together via pressure-transfer surfaces (108',108"), where the motion of the arrangement may be constrained or prevented in the upward direction. A prism body (108,119) may be arranged together with shoe holder arrangement, and lie in a normal bearing of the shoe holder with two narrow surface stripes. There may be two prism bodies that are arranged symmetrically to a vertical mid-length plane of the shoe holder aggregate.

Description

• zumindest einer ein Ende des Skischuhes oder seiner Sohle gegen eine Bewegung nach oben, nach seitwärts sowie in einer Schuhlängsrichtung abstützenden Schuhhalteranordnung, welche gegen Rückstellkraft beweglich angeordnet ist und den Schuh bzw. dessen Sohle bei Überschreitung eines Elastizitätsbereiches in Seitwärts- und Aufwärtsrichtung freigibt, und
• einem in Schuh- bzw. Skiquerrichtung relativ unbeweglichen Widerlager, welches einer Bewegung der Schuhhalteranordnung nach oben entgegenwirkt, wobei die Schuhhalteranordnung bei Bewegung in Schuh- bzw. Skiquerrichtung eine zunehmende Aufwärtsbeweglichkeit erhält.

The invention relates to a shoe holder assembly of a releasable ski binding, in particular for holding the toe area of a ski boot

• at least one end of the ski boot or its sole against movement upwards, sideways and in a shoe longitudinal direction supporting shoe holder arrangement, which is movably arranged against restoring force and releases the shoe or its sole when an elastic range is exceeded in the lateral and upward direction, and
• an abutment which is relatively immovable in the direction of the shoe or ski and which counteracts a movement of the shoe holder arrangement upwards, the shoe holder arrangement receiving increasing upward mobility when moving in the direction of the shoe or ski.

Ski bindings, which offer the possibility of the ski boot in the presence of appropriate interference forces in different It is common knowledge to give directions. So that will accounted for the fact that very different Skier falls are possible and therefore, for example a shoe holder assembly holding the front end of a ski shoe both sideways and upwards should be triggered.

A basic difficulty with such ties exists in connection with so-called combined falls, where the bond is relative to, for example Top of ski stressed in upward and sideways direction becomes. It should be noted here that the energy that the movement stroke of the ski boot until it reaches a release position is to be applied in the event of a combined fall a single fall, in which the binding is shown in the Example only in either sideways or in Upward direction is claimed, increase only to a limited extent should. This is due to the fact that the total resilience the skier's bones and joints are limited. In any case, it is regularly dangerous if one is for yourself alone tolerable limit load in one direction at the same time with a high and tolerable on its own Stress occurs in a different direction.

From CH 673 403 A1 is a shoe holder assembly at the beginning known type known. Their kinematics are designed that the additional friction is compensated, which between the shoe holder assembly and that of an upward movement the shoe holder arrangement counteracting abutment occurs when the shoe holder assembly moves sideways pushed upwards by external forces becomes. For this purpose roof-shaped are on the shoe holder arrangement flat ramps arranged with support elements of the Abutment cooperate in such a way that with compressive forces the friction between the ramps and the support elements compensating force component in a sideways direction occurs.

From DE-OS 38 21 097 it is known for a binding to arrange a shoe holder of the type specified at the beginning, that with increasing sideways movement it is increasing Tilting movement around a ski transverse axis and thus the Shoe with sufficient sideways movement also upwards releases.

FR-A 2 628 647 and EP-A 0 385 946 show ski bindings, where the shoe against movement in the upward direction securing first shoe holder elements and Securing the ski boot against sideways movement further shoe holder elements with a common release spring cooperate in such a way that the one for triggering sufficient energy even with combined falls remains limited. However, the case may arise that under unfavorable conditions triggering in comparison very little trigger work is possible.

DE-OS 26 29 452 shows a shoe holder unit with two Spring units, one of which is used to control a release of the ski boot in the direction of a cross shoe axis and one to control the triggering of the ski boot in the direction a shoe vertical axis is provided. Every spring unit interacts with a separate shoe holder, which the shoe only in the respective spring unit assigned trigger direction can hold. Here you can with a combined fall, very high loads on the legs or skier's joints occur because under unfavorable If the ski boot is only triggered, if both for pure sideways release necessary work as well as that for a pure vertical release necessary work has been done.

The object of the invention is now the safety of a skier to improve when turning backwards.

This task is done with a ski binding of the type specified at the beginning Kind of solved by the fact that the upward mobility the shoe holder arrangement on both sides of a normal position initially only a little and with further movement in shoe or ski direction increases increasingly.

The invention is based on the general idea that Upward forces acting on the shoe with greater sideways movement of the shoe into an additional force that the Shoe pushes increasingly in the aforementioned sideways direction and thus the triggering of the shoe is reproducibly easier.

This additional force is the result of a sideways movement increasing increasing the shoe holder assembly Upward movement or upward mobility of the Shoe holder arrangement opposite to that counteracting the upward movement Abutment. At the same time, this upward movement works or upward mobility with sideways movement the shoe holder arrangement in the sense of a decrease in for a vertical release of necessary energy.

The invention takes into account that the torsional load capacity the skier's knee joints at one backwards directed load is extremely low and accordingly the ski binding should trigger very easily if a fall with the aforementioned movement components occur should.

According to a preferred embodiment of the invention act the shoe holder arrangement or a part thereof and the abutment over pressure transfer surfaces together, which the Movement of the shoe holder assembly or a part thereof limit or prevent in the upward direction and due to their shape of the shoe holder arrangement or the shoe holder part increasing mobility when moving sideways offer up.

The abutment can be provided with a suspension, which an upward movement of the abutment against a predetermined one or adjustable force.

A sideways movement of the shoe holder arrangement preferably acts one separate from the suspension of the abutment Suspension against.

According to a particularly preferred embodiment of the invention the abutment is pivotable about a transverse axis double-armed lever formed on one arm the Shoe holder arrangement or a shoe holder part against upward movement is supported and the other lever arm resilient is compliant and / or supported, wherein by adjusting the support and / or changing the effective one Length of the lever arm the resilience of the Abutment is adjustable.

According to an appropriate embodiment of the invention be provided that the height mobility of the shoe holder assembly or the shoe holder part on both sides of a normal position initially only a little and with further sideways shift increases increasingly. This way can be achieved be that at a slight sideways shift initially only the friction between the shoe holder assembly or the shoe holder part and the abutment in the upward direction on the shoe holder arrangement or the shoe holder part acting forces occurs, is compensated. Only when the shoe holder arrangement is shifted further or the shoe holder part is then mentioned by the Upward forces also one in the direction of each Sideways force acting sideways.

Otherwise, with regard to preferred features of the invention to the claims and the following explanation referred to the drawing, based on a particularly preferred Embodiment of the invention is described.

Fig. 1

eine perspektivische Ansicht eines erfindungsgemäßen Schuhhalteraggregates zur Halterung des Vorderendes der Sohle eines Skischuhes,

Fig. 2

eine Draufsicht auf das Schuhhalteraggregat,

Fig. 3

einen vertikalen Mittellängsschnitt,

Fig. 4

verschiedene Ansichten eines die Skischuhsohle gegen Aufwärtsbewegung sichernden Schuhhalterteiles, und zwar eine perspektivische Ansicht, eine Frontansicht und eine Draufsicht, und

Fig. 5

eine perspektivische Rückansicht des Schuhhalteraggregates sowie charakteristische Lagen seiner Elemente.

It shows

Fig. 1

2 shows a perspective view of a shoe holder assembly according to the invention for holding the front end of the sole of a ski shoe,

Fig. 2

a plan view of the shoe holder assembly,

Fig. 3

a vertical central longitudinal section,

Fig. 4

different views of a shoe holder part securing the ski boot sole against upward movement, namely a perspective view, a front view and a plan view, and

Fig. 5

a rear perspective view of the shoe holder assembly and characteristic layers of its elements.

1 carries one on the top of a not shown Skis fixed base 101 with it firmly connected, skeletal housing structure 102. On this are vertical on both sides in the front area Central longitudinal plane two guide links 103 around vertical axes pivoted, with bearing clearance guaranteed is that the guide link 103 is also a bit around their housing side Cross axis passing through bearing parts pivotable are. At their rear ends in Fig. 1 carry the guide links 103 each two vertically superimposed Articulated eyes 103 ', which are used for the storage of only indicated in FIG Sole holder parts 104 serve in their normal position reach around the front end of the sole and thus hold in the transverse direction. For the rest, are the leading link 103 on their upper hinge eyes 103 'via a flat band 105 hinged together so that they are always together swivel in the transverse direction. In the example of Fig. 1 are the guide links 103 are deflected in the direction of the viewer.

The flat sole 105 is the front sole edge from above overlapping sole holder part 106 arranged which the front transverse edge of the flat belt 105 with hook-like extensions 106 'with which the sole holder part 106 the front edge of the flat belt 105 is held pivotally becomes.

The rear transverse edge of the sole holder part 106 is as downward ledge 107 formed the bottom of the flat belt 105 in the normal position of the sole holder part 106 protrudes downwards and from above on the edge of the front Sole of the ski boot rests.

On the top of the sole holder part 106 are two strip-like Prism body 108 formed which something diagonally to the longitudinal axis of the ski or the shoe holder assembly are aligned such that the longitudinal directions of the Prism body 108 is at the rear end of the ski form a slightly opening angle.

Otherwise, the back of the prism body 108 rises backwards in the longitudinal direction of the ski.
As can be seen in particular from FIG. 4, the backs of the prism bodies 108 each have a narrow median strip without a sideways inclination, inclined surfaces 108 'adjoining them on both sides with a slight sideways gradient of, for example, 8 ° and adjoining flanks 108 "with a steep gradient of, for example, 50 ° with respect to that horizontal.

The housing structure 102 has one between the guide links 103 arranged stiffening part 109, which with Feet 109 ', which act as pivot axes of the guide link 103 serve, is held on an underside of the housing and with a essentially horizontal top 109 "on two stable Housing columns 110 is supported. Laterally outside of the columns 110 are two beads 111 on the upper part 109 " downward-facing convex side.

The housing structure 102 forms in a front section a longitudinal guide for a spring abutment 112, which in fundamentally known manner by means of a not shown Set screw, which is held by a receiving part 113 becomes displaceable and adjustable in the longitudinal direction is. This spring abutment 112 supports one in the longitudinal direction arranged, not shown helical compression spring, the controls a basically known locking arrangement with which the guide link 103 in a sideways release Be held in the middle position. At the spring abutment 112 are two fork-like ones pointing backwards in the longitudinal direction of the ski Extensions 114 arranged vertically downward supported on projections on the stiffening part 109 are and ramp-like sloping upper edges 114 '.

A spring member 115 is on the columns 110 in the longitudinal and transverse directions of the shoe holder assembly firmly held. This The spring part has a top view in the area of the columns and of the upper part 109 "of the stiffening part 109 an H-shaped Shape, with the H crossbar in the longitudinal direction behind the upper part 109 ". The rearward facing Ends of the H-side parts act in the manner shown below Way with the prism bodies 108 of the sole holder part 106 together. In front of the top part 109 "of the stiffening part 109 are the H-side parts vertically downwards angled, with the parts angled downwards with Shoulders 116 are provided, which are shown in FIG Interact with the upper edges 114 'of the extensions 114.

Below the shoulders 116, the H-side parts are spring tongue-like with spring clips extending forward in the forward direction 115 'formed between the extensions 114 are connected to each other by a crossbar 117. Before extensions 118 aligned in the longitudinal direction are connected, between the extensions 114 and shoulders 112 'are supported on the spring abutment 112 without the adjustability of the spring abutment 112 to hinder.

The spring clips 115 'between the shoulders 116 and the crossbar 117 are leaf spring-like, while those attached to it are upward and rearward adjoining areas of the spring part 115 are comparatively stiff, since here the side parts of the spring part 115 laterally curved edges 115 '' and accordingly have a channel profile.

Form the rearward-facing ends of the spring member 115 to the prism bodies 108 of the sole holder part 106 Similar prism body 119, one in the transverse direction flat central surface arranged without inclination inclined surfaces inclined upwards and steeply upwards Connect inclined flanks. The outer go Flanks into the edges 115 "across; the inner flanks are with each other over a raised edge of the crossbar of the Spring part 115 next to the upper part 109 "stiff with each other connected.

The arrangement shown works as follows:

In the normal position, i.e. if the ski boot or its sole properly fixed in the shoe holder assembly the guide link 103 and the sole holder part 106 their Middle position in which the sole holder parts 104 the lateral Grip around the sole edges and the sole holder 106 his last 107 overlaps the front edge of the sole from above. Here, the sole holder part 106 lies with its Prism bodies 108 on the prism bodies 119, in such a way that that the narrow central areas of the prism bodies, i.e. whose "rooftops" stand on top of each other.

Excessive sideways force now acts on the shoe, presses the shoe sole against one of the side sole holder parts 104, with the result that the guide link 103 against a restoring force generated by the release spring be deflected. With sufficient deflection pivots the one in front in the direction of movement Sole holder part 104 to the outside and releases the shoe. In the shoe holder assembly according to the invention functions in this regard in a conventional way.

Once on the 'shoe one the shoe tip in the upward direction the urging force acts, the sole holder part 106th pushed upwards against the prism body 119, the sole holder portion 106 around that of its hook-like Extensions 106 'included the front transverse edge of the ribbon 105 seeks to pivot (counterclockwise in Fig. 1). With sufficient upward force, the Prism body 119 of the spring part 115 are bent up, such that the sole holder part 106 overlapped the one of it Sole edge and thus the shoe sole and the shoe upwards releases. Here, on the one hand, the spring force of the spring clip 115 'can be overcome. For the rest, the spring part is supported 115 sooner or later with his shoulders 116 up the upper edges 114 'of the extensions 114, so that the area of the spring part 115 stiffened by the edges 115 " is bent more or less elastically.

The forces to be overcome are determined by the position of the spring abutment 112 and the associated Extensions 114. When the spring abutment 112 in FIG. 1 with the extensions 114 is shifted far to the right the prism body 119 is a particularly rigid abutment for the prism body 108 of the sole holder part 106. If however, the spring abutment 112 in Fig. 1 together with the Extensions 114 is shifted to the left, the prism body 119 held comparatively compliant.

Since with a displacement of the spring abutment 112 also Restoring forces are changed accordingly, the guide link 103 will try to keep in their normal position thus the rigidity of the holder of the prism body 119 in the same way as that acting on the guide link 103 Restoring force changed.

The sole holder part 106 can be designed so that the Front edge of the shoe sole in case of forces that raise the shoe looking, hits the last 107 and the sole holder part 106 around the one encompassed by the hook-like extensions 106 ' Searches to swing up the leading edge of the flat belt 105. Since the strip 107 extends from said leading edge, i.e. the Pivot axis of the sole holder part 106, a larger distance than the contact zones between the prism bodies 108 of the sole holder part 106 and the prism bodies 119 of the Has spring part 115, the latter prism body 119th with a force opposite that between the sole and last 107 effective forces is increased, with appropriate bending of the spring member 115 pushed up. At the same time the flat belt 105 with the associated binding parts depressed. By appropriate dimensioning of the distance between the front edge of the flat belt 105 and the bar 107 or the contact area of the shoe sole on the one hand and the Distance between the named front edge and the contact zones the prism body 108 and 119 on the other hand leave different effective lever lengths can be achieved with the Consequence that an upward force exerted by the shoe with different Reinforcement worn on the spring part 115 becomes. This can also contribute to the release behavior of the binding Upward forces are affected.

Now a force with side and up components on the shoe Act. If the force is sufficient the guide link 103 will pivot slightly to the side, so that the prism body 108 of the sole holder part 106 and the Prism body 119 of the spring part 115 from the in the picture A Fig. 5 shown position in which the "rooftops" of Prism bodies 108 and 119 lie one on top of the other in the position of the 5 in which the prism bodies 108 and 119 are slightly off-center, i.e. your inclined sloping surfaces to the side of their median strip or their rooftops interact with each other. by virtue of the upward force K on the sole holder part 106 acts, the inclined surfaces are corresponding Way pressed against each other, due to the inclination of this Inclined surfaces a certain force component Q in the Is generated in the sideways direction in which the guide link 103 have already been deflected somewhat. Through this sideways component Q becomes the friction between the prism bodies 108 and 119 largely compensated.

If there is still sufficient force on the Shoes come in the sideways direction according to image C of 5 shows the steep flanks of the prism bodies 108 and 119 in contact with each other, with the result that a significant Lateral force S is generated when the sole holder part 106 continue to go up due to forces K directed upwards is pushed.

The result of this is that the guide link 103 also with external forces directed upwards only be pivoted to the side, the shoe holder assembly 102 the shoe by unlocking one of the sole holder parts 104 sideways and / or increasing Upward movement or by increasing upward swiveling of the Sole holder parts 104 and sole holder part 106 also releases in the upward direction.

As a result, the sole holder part 106 gets more and more Sideways movement an increasing mobility in Upward direction and eventually the shoe can go up release. In addition, one supports the sole holder part 106 upward force through cooperation the flanks of the prism bodies 108 and 119 together increasing sideways pivoting of the guide link 103 because due to the upward force, the guide links acting sideways force is generated that one Lateral release of the binding counteracting release resistance counteracts the bond, with the result that the Ultimately, the shoe or sole is still effective Lateral upward force easier or earlier is released.

1 shows the sole holder 106 in a position in which the prism bodies 108 relative to the prism bodies 119 in Are shifted towards the viewer and the sole holder 106 together with the ends of the guide links holding it 103 or with the flat belt 105 a lifted in the upward direction Have reached location.

Deviating from the above-described or illustrated embodiments can be provided that the Sole holder parts 104 (see FIG. 2) not only in the shoe Hold sideways but also upwards and the edges of the front sole area of the Also overlap ski boots from above.

In such an embodiment, the bar is unnecessary 107 on the sole holder part 106, so that the part 106 only can serve as a carrier of the prism body 108.

The overlapping the sole edge of the ski boot from above Surfaces of the sole holder parts 104 and / or the sole holder part 106 or its bar 107 can be used as inclined surfaces be trained, which rise towards the shoe. If on the shoe, for example if the skier falls backwards strong upward force acts, the shoe is by the Sloping surfaces also in the backward direction against the heel of the ski boot holding further shoe holder aggregate, which in the usual way in the longitudinal direction against a push suspension can be movable, which is normally serves to excessive when bending the ski Avoid clamping the ski boot in the longitudinal direction or the shoe between the shoe holder units without play to keep. With sufficiently large upward forces sufficient then the forces pushing the ski boot backwards off, the ski boot together with the heel-side shoe holder assembly against the pushing spring a little backwards to push so that the ski boot from the front shoe holder assembly can get free upwards.

This can be made easier by the fact that the Ski boot also acting upwards to a more or less pronounced upward movement of the sole holder parts 104 and 106 lead if the spring member 115 slightly in the upward direction yields and / or if at the same time Sideways movement of the sole holder parts 104 and 106, respectively Prism body 108 relative to the prism body 119 be moved sideways and thus an additional mobility received in the upward direction. By the named The upward movement of the sole holder parts 104 and 106 becomes the The steepness of the above-mentioned inclined surfaces on these parts increased, with the result that the shoe in the upward direction is more easily released from the shoe holder assembly 102, the heel-side shoe holder assembly is only a comparative one slight movement in the longitudinal direction of the ski against the pushing suspension needs to perform.

The prism bodies 108 can also each one of the sole holder parts 104 assigned or as part of a sole holder part 104 be formed. This is especially true in the event that the sole holder parts 104 also the shoe secure upwards. The part 106 can again be omitted here or be divided into two sections, each with one of the sole holder parts 104 are connected or represent a section of such a sole holder part 104.

Basically, it is also possible that the sole holder parts 104 formed as fixed extensions of the guide link 103 are.

As far as the sole holder parts 104 and 106 by cooperation the prism bodies 108 and 119 perform an upward movement or can execute, the guide link 103 a corresponding upward pivoting about a transverse axis in the area of their bearing eyes on the feet 109 'of the stiffening part Execute 109.

Claims (13)

1. Boot-retaining unit of a disengageable ski binding, in particular for retaining the toe region of a ski boot, having

   at least one boot-retaining arrangement which supports an end of the ski boot, or an end of the sole of the latter, against a movement upwards, sideways and in the longitudinal direction of the boot, and which is arranged such that it can be moved counter to a restoring force and releases the boot, or the sole thereof, in the sideways and upward directions when a range of elasticity is exceeded, and

      an abutment (115, 119) which is relatively immovable in the transverse direction of the boot or ski and counteracts an upward movement of the boot-retaining arrasngement (104, 106), the latter, upon movement in the transverse direction of the boot or ski, being rendered capable of an increaseing upward movement,
   characterized in that the upward movement capability of the boot-retaining arrangement (104, 106), on both sides of a manual position, increases, in the first instance, only to a slight extent and, upon further movement in the transverse direction of the boot or ski, to a more pronounced extent.
2. Boot-retaining unit according to Claim 1, characterized in that the boot-retaining arrangement (104, 106), or a part (106) or a plurality of parts (104) of the same, and the abutment (115, 119) interact via pressure-transmitting surfaces (108', 108") which limit or prevent movement of the boot-retaining arrangement, or of the part of the same, in the upward direction.
3. Boot-retaining unit according to Claim 1 or 2, characterized in that prism bodies (108, 119) which interact with one another are arranged both on the boot-retaining arrangement (104, 106), or on a part (106) or on a plurality of parts (104) of the same, and on the abutment (115, 119), which prism bodies, in a normal position of the boot-retaining arrangement, are located one upon the other by two narrow surface strips which are adjoined on both sides by slightly inclined oblique surfaces (108') and then by steeply inclined flanks (108"), such that, upon sideways movement with respect to the normal position, the boot-retaining arrangement (104, 106), or the part (106) thereof, can be moved first of all to a relatively small extent in the upward direction relative to the abutment when the oblique surfaces interact with one another and can then be moved to a vastly increasing extent in the upward direction relative to the abutment when the flanks interact with one another.
4. Boot-retaining unit according to Claim 3, characterized in that in each case two prism bodies (108, 119) are arranged on the abutment (115, 119) and on the boot-retaining arrangement (104, 106), or on a part (106) of the same, symmetrically with respect to a vertical centre longitudinal plane of the boot-retaining unit.
5. Boot-retaining unit according to Claim 3, characterized in that prism bodies (108, 119) which interact with one another are arranged in each case on the abutment (115, 119) and on two sole-retaining parts (104), which are arranged symmetrically with respect to a vertical centre longitudinal plane of the boot-retaining unit.
6. Boot-retaining unit according to one of Claims 1 to 5, characterized in that the abutment (115, 119) or the prism body or bodies (119) on the abutment is or are arranged resiliently in the upward direction.
7. Boot-retaining unit according to Claim 6, characterized in that the prism body or bodies (119) on the abutment is or are part of a leaf-spring-like spring element (115).
8. Boot-retaining unit according to Claim 7, characterized in that the spring part (115) is mounted in a stationary manner (bearing points 111) in the longitudinal direction between the prism body or the prism bodies (119) and the spring-part end which is remote therefrom.
9. Boot-retaining unit according to Claim 8, characterized in that the end (118) of the spring part (115), which end is remote from the prism body or the prism bodies (119), is supported on an adjustable spring abutment (112) such that it is possible to adjust the length of the effective spring range.
10. Boot-retaining unit according to one of Claims 6 to 9, characterized in that the spring element (115) has a relatively stiff part which is mounted (at bearing points 111) such that it can be pivoted, in the manner of a double-armed lever, around a transverse axis of the boot-retaining unit, the lever arm which is remote from the prism body or the prism bodies (119) on the abutment interacting with an adjustable pivot-limiting means (114').
11. Boot-retaining unit according to Claim 10, characterized in that the pivot-limiting means (114') is, at the same time, positively coupled to the spring abutment (112), which changes the effective spring range.
12. Boot-retaining unit according to one of Claims 1 to 11, characterized in that the boot-retaining arrangement has sole-retaining parts (104, 106) which interact with a border of the sole of the ski boot and engage over the border of the sole from above by an oblique surface which slopes upwards towards the boot.
13. Boot-retaining unit according to Claim 12, characterized in that, in the case of an upward movement, the boot-retaining arrangement, or the boot-retaining parts (104, 106) having the oblique surfaces, execute a pivot movement around a transverse axis which increases the steepness of the oblique surface or surfaces.

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