Classifications

• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
  • A63C9/00—Ski bindings
  • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
  • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
  • A63C9/08592—Structure or making
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
  • A63C9/00—Ski bindings
  • A63C9/007—Systems preventing accumulation of forces on the binding when the ski is bending
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
  • A63C9/00—Ski bindings
  • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
  • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
  • A63C9/08507—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a plurality of mobile jaws
  • A63C9/08521—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a plurality of mobile jaws pivoting about a vertical axis, e.g. side release
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
  • A63C9/00—Ski bindings
  • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
  • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
  • A63C9/08535—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a mobile body or base or single jaw
  • A63C9/0855—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a mobile body or base or single jaw pivoting about a vertical axis
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
  • A63C9/00—Ski bindings
  • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
  • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
  • A63C9/08557—Details of the release mechanism
  • A63C9/08564—Details of the release mechanism using cam or slide surface
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
  • A63C9/00—Ski bindings
  • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
  • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
  • A63C9/08557—Details of the release mechanism
  • A63C9/08578—Details of the release mechanism using a plurality of biasing elements
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
  • A63C9/00—Ski bindings
  • A63C9/22—Arrangements for adjusting the toe-clamps

Definitions

• the invention relates to a safety ski binding with a front jaw, with a fork jaw guiding the ski boot in the front sole region and with a heel jaw which has a fork jaw guiding the ski boot during a pivoting movement of the front jaw in the heel region.
• a safety ski binding of this type is known from the German utility model 82 23 875.
• both the front jaw and the heel jaw are guided in ski-fixed guides along the ski and are coupled to one another by a flexible connecting rail, so that they can be moved as a unit along the ski in order to optimize the skiing properties of the ski.
• the toe piece can be locked in the desired binding position, while the heel piece remains freely movable in order to prevent undesired stiffening of the ski in the binding area.
• the sole holder of the heel shoe which engages the heel of the ski boot, is in turn movable relative to the connecting rail, which is securely locked over the front shoe, and is prestressed by a compression spring on the front shoe.
• the compression spring ensures a constant contact pressure with which the ski shoe rests on the sole holder of the toe piece and thus ensures constant release conditions of a predetermined release torque, but the sole holder of the front piece swings out and releases the ski shoe. baking.
• the aim is that the pivot axis of the ski boot essentially coincides with the shin axis in order to obtain predeterminable pivot radii of the front sole area and of the rear heel area .
• the sole or heel holder of the heel shoe should guide the ski boot in such a way that it executes the pivoting movement around the shin axis.
• the sole holder of the front jaw is usually designed as a fork jaw and guides the ski shoe in its normal position on opposite sides in an approximately punctiform manner. Due to the kinematics of the pivoting movement of the ski boot and the sole holder which can be pivoted about a pivot axis located in front of the ski boot, the front jaw of conventional safety ski bindings allows the ski boot to move forward in the longitudinal direction of the ski during the release rotation of the sole holder of the front jaw. so that the ski boot is pushed forward by the compression spring of the heel cheek during the release movement of the toe cheek. The pivot axis thus also moves forward, which impairs the uniformity of the release movement.
• the front jaw and / or the heel jaw has two centering elements, in particular designed as spring elements, which are resiliently adjustable essentially parallel to a central longitudinal axis connected to the front and heel jaws and on both sides of the center! are arranged along the longitudinal axis.
• the spring and centering elements of the toe piece and the heel piece act against each other and hold the ski boot during the rotational movement resulting from the triggering of the toe in an equilibrium position relative to the ski, with which the pivot axis of the ski boot and thus the shin axis do not migrate in the direction of the ski.
• the spring forces of the two spring elements are expediently of the same order of magnitude, although differences in the spring forces can occur due to different frictional resistances. For this reason, the spring force of the front spring element is expediently somewhat less than the spring force of the spring element of the heel shoe.
• the spring element is arranged at least one of the two sole holders between the two fork legs of the fork jaw and engages directly on the ski shoe.
• the spring element is preferably formed by at least one spring tab lying in the region of its free end on the ski boot, but for reasons of symmetry, two spring tabs projecting essentially from the fork legs essentially transversely to the direction of the ski are advantageously provided.
• centering elements are arranged between the fork legs in one fork shoe holding the ski shoe and which forms at least one sole holder, since a centering of the ski shoe between the fork legs can be achieved as soon as one enters the binding.
• the fork jaws and the spring element made of stiff plastic material, especially plastic material! exist and form an integral unit, since the spring elements can thereby be produced in a simple manner directly with the fork jaws without additional assembly processes.
• the spring element is formed by at least one spring tab in the area of its free end on the ski boot, since the elasticity of the selected plastic or the corresponding wall thicknesses in the bending area means that it can be adapted to different loads or Restoring forces are possible.
• two spring tabs directed towards one another protrude essentially transverse to the central longitudinal axis from the fork legs.
• This embodiment has the advantage that the larger deformation in the end region of the spring tabs instead of a point load usually results in a larger supporting surface, which is particularly the case with high-frequency strikes, as is the case when driving quickly over hard, ribbed slopes , Damping the deflection movement, so that unwanted false triggers can be changed in a surprising manner.
• the spring element provided on the toe piece, which engages directly on the sole of the ski boot, is expediently curved around the pivot axis of the sole holder, in particular in an approximately circular arc, in order not to impair the pivoting movement of the sole holder. This can be achieved in a particularly simple manner by the spring tabs mentioned above if the spring tabs are curved in an arcuate manner.
• the spring elements are curved in a circular arc and that a radius of the enveloping circle is greater than the distance between the pivot axis of the fork jaw and the end faces of the heel jaw facing the Centering or spring elements and the center of which is arranged on the central longitudinal axis.
• the sole holders of both the toe and the heel are designed as fork jaws, that the spring elements arranged between the fork legs, which act directly on the ski shoe, are provided on the toe jaw, and that the fork jaws of the heel shoe in Skil Direction along a ski-fixed rail and is biased by a helical compression spring towards the toe, whereby a stable holding of the ski boot is achieved when the toe and heel cheeks are in the rest position.
• the spring forces of the spring elements of the toe piece and the heel piece are of the same order of magnitude, in particular, are approximately the same, as a result of which undesired false triggers can be changed more easily in the case of one-sided deflection movements of the ski boot.
• the spring force of the spring element of the toe piece is less than the spring force of the spring element of the heel piece, since the higher frictional forces between the toe pieces and the ski boot or the larger sole contact area in relation to the distance between the pivot axis 33 can be compensated for and nevertheless, there are approximately the same preload forces in the area of the toe and heel.
• centering elements or the spring tab interchangeable rubber and / or plastic inserts in the front or heel jaws are supported by means of spring elements, whereby the spring forces and thus the damping behavior can be easily adapted to different purposes.
• Another embodiment variant is advantageous, according to which the spring elements are formed by a helical spring or spiral spring, since this enables each user to individually adjust the damping effect or the suspension area, not least in accordance with the driving skill.
• the centering elements run in guides running approximately parallel to the central longitudinal axis with the interposition of a spring element, for example made of rubber and / or plastic or a helical spring or the like. is supported in the front and / or heel jaws and an adjusting device is assigned to the spring element, so that in the event of the deflection of the front jaw, a predefined support of the sole of the ski boot in the front jaw via the centering element or the fork legs! of the front baking can take place and nevertheless a sensitive adjustment to universal application possibilities can be achieved.
• a spring element for example made of rubber and / or plastic or a helical spring or the like.
• the centering elements may be formed by swivel levers which are pivotably mounted therein about swivel axes running perpendicular to a mounting surface of the front or heel jaws and are resiliently prestressed in the direction of the heel and / or toe jaw with the interposition of a spring element, whereby the triggering movements are more strongly supported when the preset permissible voltage is exceeded, since the damping effect inherent in the system ceases to exist.
• a spring characteristic of the spring element can be set via adjusting devices, since this enables an even better adaptation of the overall system to different applications. Furthermore, it is also possible that a distance between the centering elements and / or points of contact of the spring elements parallel to an assembly surface of the front and / or heel jaws is less than half the width of the sole holder, because of the Distance between the centering elements or the support points additionally the area in which a damping of the deflection movement or a triggering can be roughly predefined.
• a distance running parallel to the mounting surface of the front and / or heel jaws is approximately between 5 mm and 20 mm, preferably 10 mm, whereby the ski binding is triggered at a deflection between 5 ° and 10 ° is achieved in any case regardless of the set spring forces by releasing or eliminating the lateral guidance of the ski boot in the region of the toe.
• a spring force of the spring elements assigned to one of the two centering elements or spring elements is less than a spring force of the spring element in the heel jaw, since the spring force with which the individual spring elements are acted upon can be different and, for example, the the inner edge of the ski closer spring elements can be biased with a higher spring force than the closer to the outside of the ski, so that when the skis are bent higher stresses are dampened more than, for example, movements of the ski as they are when bunging into a slalom pole or the like . occur in the opposite direction. In any case, however, this ensures that the spring force resulting from the friction losses and the spring force in the region of the toe piece is not greater than the spring force of the spring elements in the heel piece.
• Fig. 1 is a partially broken top view of a safety ski binding in normal! age
• Figure 4 shows the front jaw in the forehead, sectioned according to lines IV-IV in Figure 3;
• FIG. 5 shows a representation of a safety ski fertilization according to the invention in a greatly simplified schematic representation, with the toe piece deflected slightly to the side;
• FIG. 6 shows a representation of a safety ski binding according to the invention in a greatly simplified schematic representation, with the toe piece strongly deflected to the side;
• Fi g. 7 shows another embodiment of a toe piece with centering elements designed in accordance with the invention in a top view
• FIG. 8 shows another embodiment of a toe with swivel lever-formed centering elements in plan view.
• Fig.l shows a safety ski binding 2 mounted on a ski 1 with a toe piece 3 and a heel piece 5.
• the toe piece 3 is attached or locked to the ski and has a sole holder designed as a fork piece 7 which extends around a perpendicular to the plane of the ski 1 Pivot axis 9 is pivotable.
• the fork jaw 7 holds the front end of the sole of a ski boot 11 on opposite sides of the longitudinal center of the ski between its fork legs 13 at essentially point or line-shaped support points 15.
• the fork jaw is locked in the normal position and is exceeded when it is exceeded of a predetermined torque exerted by the ski boot 11 is pivoted out of the normal position, whereby the ski boot 11 is released.
• the heel jaw 5 holds the ski boot 11 in the heel area with a fork jaw 17, preferably also at two point or line-shaped support points 19 on either side of the longitudinal center of the ski.
• the fork jaw 17 can be pivoted in a manner not shown in detail about a transverse axis running parallel to the ski plane and is also locked in the normal position. It is triggered in frontal supports in a known manner and releases the heel of the ski boot 11.
• the ski boot 11 is held between the fork jaws 7 and 17 with a predetermined spring force when the binding is set correctly.
• the heel shoe 5 is guided in a rail 21 in the direction of movement.
• the heel jaw 5 is supported by a spring element 23 on a worm 25 which, in turn, engages in a linear toothing of a ski-fixed part, not shown, with the axis extending in the longitudinal direction of the ski.
• the worm 25 is connected to an adjusting screw 27, by means of which it is rotated and displaceable along the linear toothing of the part fixed to the ski.
• a stop 29 limits the feed path of the heel shoe 5 when the ski boot 11 is missing.
• the stop 29 held on the heel shoe 5 in this case strikes an end face 31 of the screw 25.
• the ski boot 11 pivots about an indicated pivot axis 33 coinciding with the shin axis.
• the heel area of the ski shoe 11 has the shape of a circular arc around the pivot axis 33, so that the fork jaws 17 keep the ski shoe 11 with a fixed shape .Pivot axis 33 can guide.
• the front end of the ski boot sole extends approximately in a circle around the pivot axis 33. This leads to the situation shown in FIG. 2 when the toe 3 is released.
• a spring element 37 which is formed by two spring tabs 36 and acts directly on the front sole region of the ski shoe 11, is provided on the fork jaw 7.
• the spring tabs 36 protrude toward each other from the fork legs 13 and rest with their free ends on the front end of the sole of the ski boot 11. They are curved in a circular arc around the pivot axis 9 and are pretensioned by the ski boot 11 held in the ski binding.
• the spring force of the spring tabs 36 is essentially equal to the pretensioning force of the helical compression spring 22, but can be smaller than the compressive force 24 of the helical compression spring 22 in order to counteract the frictional force of the helical compression spring 22 caused by the shoe and the like. 1 shows with a dashed line the deflection of the spring tabs 36 in the normal position of the binding.
• the spring tabs 36 are an integral part of the fork jaw 7, which is expediently designed as a molded plastic part.
• the front jaw 3 and the heel jaw 5 can be attached separately to the ski; however, similar to the ski binding of the utility model 82 23875, they can also be coupled to one another via a flexible connecting rail and can be adjusted as a unit along the ski.
• the fork jaws 17 of the heel jaw 5 can also be provided with integral spring tabs, similar to the fork jaws 7, and the front jaws 3 can also be displaceably guided in a ski-fixed guide and by a compression spring as a whole the ski boot too pre-tensioned.
• FIG. 3 and 4 show the front jaw 3 of the safety ski binding 2 with the spring elements 37 which in the present case are formed by spring flaps or spring arms or brackets.
• the spring elements 37 which in the present case are formed by spring flaps or spring arms or brackets.
• a further spring element 40 or 41 can be assigned to each spring element 37 on the side facing away from a front end face 38 of the sole 39.
• the pretension that can be exerted with the spring elements 37 in the direction of the heel shoe 5 can be changed as desired.
• the spring element 41 with a harder spring characteristic, ie a higher spring force or a higher displacement. to provide molding resistance.
• a radius 45, in which the spring elements 37 are arranged in the untensioned state is greater than a distance 46 between the spring elements 37 facing the end face 38 of the sole 39 in the relaxed state and a center point of the Swivel axis 9 of the front jaw 3.
• the deformation due to the spring force of the spring element 23 changes the position of the spring elements 37 and thus also increases a radius 47, as a result of which the deviations in the direction of a central longitudinal axis 48 between the end face 38 of the sole 39 and the spring elements 37 during their mutual rolling with a relative adjustment between the sole 39 and the toe 3 becomes smaller.
• the spring elements 37 carry forward over their entire length from the front jaw 3. If it is desired to achieve a higher prestressing effect of the spring elements 37, the freely projecting length of the spring elements 37 can advantageously be shortened accordingly.
• the spring elements 40 and 41 can also exert the same spring characteristic and thus the same damping force with the same spring travel.
• the deformation of the spring elements 37 from the relaxed position drawn in dashed lines to the tensioned position drawn in full lines increases a distance 49 between two points of contact 50 between the end face 38 of the sole 39 and the spring elements 37 to a distance 51 .
• a radius of a rolling roll 59 along which the end face 38 of the ski boot 42 moves depends on the size of the boot.
• the sides facing the end face 38 of the ski boot 42 are located within an enveloping circle 60 with a radius 47. If there is now a lateral deflection of the fork jaw 7, the latter is displaced Point of contact 50 of the spring element 55 in the direction of the rest position 54, while the point of contact 50 assigned to the spring element 56 moves away from the latter.
• This has the effect that the spring element 55 is deformed more in the direction of the pivot axis 9, in practice, even by the slightest amount, while the spring element 56 can relax by a slight amount.
• This results in a differential force in the two contact points 50 which attempt to restore the state of equilibrium between the compressive forces acting in the two contact points 50, which are built up by the spring element 23.
• the shoe axis 64 of the ski boot 42 now has the tendency to move in the direction of the rest position 54, since due to the relative movements due to the rolling of the rolling circle 59 the enveloping circle 60 between the end face 38 around the fork leg! 57 there is a gap 35.
• the spring force 65 which is applied with the spring element 55, builds up a holding force 66, as indicated schematically by an arrow, which counteracts a lateral deviation of the ski boot 42 this holding force 66 and thus at the same time also prevents evasion in the direction of the pivot axis 9.
• the advantage of this design or arrangement is that if the release force 61 is not sufficient to release or open the release mechanism, the ski boot 42 can pivot back exactly into its original rest position 54, since only the deformation force of the Spring elements 55, 56 must be overcome so that they again assume, for example, the position shown in full lines in FIG.
• the support via the contact point 62 on the fork - give! 58 and only after corresponding deformation and build-up of a counterforce of the spring elements 55, 56 does the pressing force, which is then predominantly applied only by the spring element 23, again shares the two spring elements 55 and 56 with the tendency, as already described above have to align or center the ski boot 42 and the fork 9 baking.
• FIG. 3 Another embodiment of a toe piece 3 is shown in FIG.
• This front jaw 3 is equipped with centering elements 67, 68 which, when the fork is in the rest position, are aligned parallel to the rest position 54.
• the two centering elements 67, 68 consist of pistons which are guided in bushings and which are formed on their end face facing the end face 38 of the ski boot 42 with rounded portions or mushroom-shaped.
• the centering elements 67, 68 are supported by spring elements 69, so that they enable a relative adjustment in the longitudinal direction of the rest position 54 or the central longitudinal axis 48.
• the choice of the characteristics of the spring elements 69 which for example can also have different spring characteristics, similar to that already described in connection with FIG. built opposing force or a holding force 66, as was described, for example, with reference to FIGS. 3 to 6 above.
• centering elements 71 formed by swivel levers 70 are provided.
• the pivot levers 70 are adjustable about pivot axes 72 which can be pivoted against the action of spring elements 73 in the longitudinal direction of a central axis 48.
• the spring characteristic of the spring elements 73 can be achieved, for example, by adjusting the threaded pins 74 which form the abutments for the spring elements 73.
• centering elements 71 corresponds to that which has been explained in detail with reference to FIGS. 1 to 6 above.
• the spring elements 37 or the centering elements 67, 68 or 71 can have any other shape, for example in the manner of angle levers, rollers or other cross sections.
• FIGS. 3 to 8 have been considerably simplified and partially shown schematically and partially to scale in order to better illustrate the function of the spring elements or the centering elements according to the invention.
• the view from below was predominantly chosen so that those parts of the fork jaw 7 which overlap the end face 38 of the ski boot 42 do not cover the important areas for the interaction of the spring or centering elements and the end face 38.
• front jaw 3 is in no way linked to the exemplary embodiments shown in the drawings, but rather front jaws can also be used which, in addition to being triggered about a vertical pivot axis 9, also about a perpendicular thereto and parallel to a mounting surface 75 - Fig. 4 - fende pivot axis can be triggered.
• the spring elements 37 described in FIGS. 1 to 4 and designed as spring tabs also act as centering elements, the function of the centering and spring elements being combined when the
• a distance 49 between two contact points 50 running parallel to the mounting surface 75 is less than one half of a width 76.
• this distance is approximately between 5 mm and 25 mm, preferably 10 mm.
• the spring elements 37 or the spring tabs 36 are arranged with friction-reducing coverings, for example sliding layers made of Teflon, at least in those areas where the ski boot comes into contact. This applies above all to the contact points 50 and 62. It is also possible, therefore, to slide sliding sleeves onto the freely projecting ends of the spring tabs.

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• Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
• Solid Fuels And Fuel-Associated Substances (AREA)
• Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
• Ropes Or Cables (AREA)
• Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
• Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

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Citations (5)

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• 1989
  • 1989-04-18 AT AT89904498T patent/ATE107870T1/de not_active IP Right Cessation
  • 1989-04-18 WO PCT/AT1989/000038 patent/WO1990009820A1/de active IP Right Grant
  • 1989-04-18 JP JP1504025A patent/JPH03504087A/ja active Pending
  • 1989-04-18 AU AU34200/89A patent/AU3420089A/en not_active Abandoned
  • 1989-04-18 EP EP89904498A patent/EP0413702B1/de not_active Expired - Lifetime
  • 1989-04-18 AT AT0903689A patent/AT403254B/de not_active IP Right Cessation

Patent Citations (5)

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