EP0531466A1 - Electronic ski safety binding. - Google Patents

Electronic ski safety binding.

Info

Publication number
EP0531466A1
EP0531466A1 EP92904150A EP92904150A EP0531466A1 EP 0531466 A1 EP0531466 A1 EP 0531466A1 EP 92904150 A EP92904150 A EP 92904150A EP 92904150 A EP92904150 A EP 92904150A EP 0531466 A1 EP0531466 A1 EP 0531466A1
Authority
EP
European Patent Office
Prior art keywords
locking
bolt
support body
locking device
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP92904150A
Other languages
German (de)
French (fr)
Other versions
EP0531466B1 (en
Inventor
Heinz H Bildner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Implementors Overseas Ltd
Original Assignee
Implementors Overseas Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Implementors Overseas Ltd filed Critical Implementors Overseas Ltd
Publication of EP0531466A1 publication Critical patent/EP0531466A1/en
Application granted granted Critical
Publication of EP0531466B1 publication Critical patent/EP0531466B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • A63C9/088—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with electronically controlled locking devices

Definitions

  • the invention relates to an elastic locking device, in particular a heel part of a ski safety binding, with
  • a housing which is to be fastened to one of two objects to be locked together, in particular a ski,
  • a retaining member which is movably guided on the housing in a pressing direction to the second of the objects to be locked together, in particular a ski boot,
  • a support body which can be moved with respect to the housing from a rest position against the pressing direction into a retracted position
  • At least one locking body which normally assumes a locking position in which it holds the support body in its rest position and which can be moved into an evasive position in which it allows the support body to move into its retracted position
  • an electromagnet with an armature which, in a predetermined switching state of a circuit containing the electromagnet, can be moved along a magnetic axis against the bolt in order to render it ineffective and thereby enable the support body to be moved into its retracted position .
  • Locking devices of this type in designs as a heel part of a ski safety binding are known from DE 3808643 Cl. They have a housing which is attached to the ski and on which a retaining member can be moved forward in the longitudinal direction of the ski and is biased forward by a spring arrangement. In a front end region of the retaining member, a holding-down member is pivotally mounted about a transverse axis.
  • the spring arrangement which biases the retaining member forward, is designed so that it also loads the hold-down member in the sense of pivoting forward downward. After a ski boot is buckled on, its rear sole part is pressed forward by a lower projection formed on the hold-down member, while a hook-like projection formed further up on the hold-down member presses the rear sole part downward.
  • a rod is guided longitudinally displaceably in the housing of the locking device and is biased forward so that its front end is supported on a back surface of the hold-down member.
  • a cam is formed on the rod, which is assigned a switch in the circuit of an electromagnet for unlocking the locking device.
  • the hold-down member is pivoted upwards and backwards by the rear sole part moving upward, so that the switch is actuated via the rod and its cams and the electromagnet receives current as a result.
  • a magnetic armature moves forward pulled and strikes against the rear end of a longitudinally displaceable bolt which is prestressed to the rear and has a conical section which tapers towards the rear and which engages between two rolling bodies serving as locking bodies and normally holds them in a locking position in which they support a supporting body hold in a rest position in the housing.
  • the two locking bodies leave their locking position and release the supporting body.
  • the support body, on which the rear end of the spring arrangement is supported moves rearward under its pressure into a retraction pitch; the prestress of the spring arrangement is thereby reduced, so that the retaining member and the retaining member mounted on it move backwards and release the rear sole part of the ski boot.
  • This known locking device works perfectly when the electromagnet is dimensioned and supplied with such a large current that its armature impinges against the rear end of the bolt with considerable kinetic energy and thereby overcomes the friction which is necessary for the forward movement required of the bolt clamped between the two locking bodies.
  • This friction is dependent on the pretension of the spring arrangement, which is converted by the hold-down member into forces directed forwards and downwards and acting on the rear sole part. So that the kinetic energy required to overcome the friction can be built up in the magnet armature, the magnet armature must have a considerable inert mass. In order to prevent this inertial mass from triggering the ski safety binding unintentionally under certain driving conditions, the magnet armature must be biased backwards by its own spring, but this has the consequence that the electromagnet has an even greater current requirement.
  • the object of the invention is to develop an elastic locking device equipped with an electromagnet in such a way that it triggers with high accuracy and with low power consumption when certain load conditions occur.
  • the magnet armature therefore only needs to have a low inertial mass and consequently only requires a relatively weak magnetic field for its acceleration, which can be generated with low power consumption.
  • the swivel axis is expediently arranged above the locking body in such a way that, under the influence of its own weight, the bolt strives to oscillate into its normal position, in which it holds the locking body in its locking position.
  • the bolt can be under its elastic bias in the sense of pivoting into its normal position.
  • the latch is mounted on the support body and, after release of the locking body, can be moved together with the latter and the support body against the pressing direction, that is to say to the rear in the case of a heel part of a ski safety binding.
  • Unintentional triggering can be prevented with great reliability, especially in the case of a heel part of a ski safety binding, if the electromagnet is arranged between the retaining member and the bolt, the magnetic axis extends parallel to the pressing direction, and the armature counteracts the predetermined switching state the pressing direction is movable.
  • a heel part of a safety binding equipped with these features is largely insensitive to sudden delays, which are still harmless to the skier, which can occur, for example, when jumping up or driving quickly through a depression.
  • a blocking device of the type described in the introduction can also be designed according to the invention in that:
  • a hold-down member for the second of the objects to be locked together in particular a ski boot, is movably mounted on the retention member between a hold-down position and a release position,
  • the spring arrangement prestresses the hold-down member in the direction of its hold-down position
  • the retaining member has a contact surface for the second object, in particular ski boots, and
  • the retention member and the hold-down member is assigned a switch in the circuit of the electromagnet.
  • the hold-down member only has to apply hold-down forces and thus the switch assigned to it z. B. only operated in the event of a frontal fall.
  • the forward forces, the z. B. are required to press a ski boot against a front binding of conventional design, however, are exercised directly by the retaining member, with the result that the retaining member z. B. responsive to lintels in which the ski boot is pushed back by the front binding part.
  • the associated movement of the restraining member is monitored by the associated switch independently of the switch for the holding-down member.
  • These two switches can be set in such a way that the loads permissible under different load conditions, for example with frontal falls on the one hand and with rotary falls on the other hand, are such that the ski boot is suitable for each of these two types of fall and also for a combination of both, a so-called slide fall gonally, reliably and with low current consumption of the electromagnet is released.
  • the two switches are expediently connected in parallel in a common circuit. It is also expedient if they are both connected in series with a common timing element. Each of the two switches can also be assigned a separate timer if, for. B. with loads that can occur in a frontal fall, should react faster or slower than with loads that can occur in a rotary fall.
  • the retaining member and the holding-down member are preferably each assigned one of two rods which are arranged on one side of a longitudinal center plane of the locking device.
  • This embodiment of the invention is preferably further developed in that a cam is slidably arranged on at least one of the rods for actuating the associated switch, which is biased by a spring in the direction of a shoulder formed on the rod and is prevented by a stop fixed to the housing via which associated switch to be moved backwards.
  • FIG. 1 shows an inventive elastic locking device in the form of a heel part of a ski safety binding in a side view, which is partially drawn as a vertical longitudinal section I-I in FIG. 6;
  • Figure 2 shows the vertical longitudinal center section II-II in Fig. 5.
  • Fig. 3 shows the cross section III-III in Fig. 2;
  • Fig. 4 shows the cross section IV-IV in Fig. 2;
  • Fig. 5 shows the cross section V-V in Fig. 2;
  • Fig. 7 is an electrical circuit diagram.
  • a rail 16 is fastened to the ski 10 and has a profile in the form of a lying C that is symmetrical with the vertical longitudinal center plane 18 of the ski.
  • An elastic locking device 20 is held in the rail 16, which in the example shown serves as a heel part of a ski safety binding and has the task of not pressing the rear sole part 14 forward
  • REPLACEMENT LEAF l shown front binding of known design, as well as to press down and release this rear sole part 14 in the event of danger in the event of a fall to the rear and in the event of a frontal fall upwards.
  • the elastic locking device 20 is designed essentially symmetrically to the longitudinal center plane 18 and has a base plate 22 which is longitudinally adjustable in the rail 16 and is fixed to the ski 10 in the region of the aforementioned front binding with a not-shown locking device of known design.
  • a housing 24 is fastened on the base plate 22, in which a retaining member 26 is guided so as to be displaceable in the longitudinal direction of the ski and exerts a forward force on the rear sole part 14; the direction of this force is referred to below as the pressing direction A.
  • a contact surface 28 is formed on the front of the retaining member 26. 1 shows the ski boot 12 in its normal position, in which its rear sole part 14 rests on the contact surface 28.
  • Fig. 2 shows the ski boot while getting into the binding, it being assumed that the front binding, not shown, is closed by pressing the tip of the ski boot down.
  • a holding member 30 designed as a lever is mounted in the longitudinal center plane 18 so that it can be swiveled up and down; a bearing sleeve 32 in the lower front area of the retaining member 26 serves as a pivot bearing.
  • the holding-down member 30 has a nose 34 which presses against the upper side of the rear sole part 14, one from the nose 7 facing away from the groove 36 and above it a flat back surface 38. Except with the nose 34, which presses down the rear sole part 14, the hold-down member 30 does not touch the ski boot 12; the hold-down member can therefore only absorb upward forces which are exerted on the nose 34 by the rear sole part 14. By contrast, rearward forces exerted by the rear sole part 14 are absorbed directly by the retaining member 26.
  • a support body 40 is also longitudinally displaceable.
  • the support body 40 is essentially cylindrical and has at its rear end two cheeks 42 which are parallel to the longitudinal center plane 18 and project vertically downward and which have in their upper region a pivot axis 44 in the form of a horizontally transverse, that is to say the perpendicular, longitudinal center plane Wear 18 normal bolts.
  • a bolt 46 is mounted in a pendulum fashion in the longitudinal center plane 18, which in its normal position drawn in full lines in FIG. 2 extends at a right angle to the base plate 22 from the pivot axis 44 downward.
  • a shoulder 48 is formed which, in the normal position of the bolt, presses a roller-shaped locking body 50 downward.
  • the locking member 50 extends parallel to the pivot axis 44, also at right angles to the longitudinal center plane 18, and has pins 52 at its two lateral ends, each of which is guided in a vertical slot 54 in one of the cheeks 42.
  • a return spring 56 is arranged, which is designed as a helical compression spring, is supported on the rear of the housing 14 and is constantly striving to hold the support body 40 in its front end position, which can be seen in FIG following as
  • the return spring 56 also exerts a small torque on the bolt 46, by means of which it is returned to its normal position when, as indicated by the broken lines in FIG. 2, it has been swung out to the rear.
  • the bolt 46 holds the locking body 50 in the position shown in FIGS. 2 and 5 in a partially cylindrical, rearwardly rising trough 58 of the base plate 22.
  • the locking body 50 prevents together with the bolt 46 any movement of the support body 40 from its rest position to the rear.
  • an electromagnet 60 is arranged in the housing 24, the axis hereinafter referred to as the magnetic axis B lies in the longitudinal center plane 18 and extends parallel to the base plate 22.
  • the electromagnet 60 has an armature 62 which has a slender bolt 64 projecting to the rear and is normally held in a front end position by a weak spring 66, in which it rests on an intermediate wall 68 of the housing 24.
  • the armature 62 moves backwards along the magnetic axis B, that is to say counter to the pressing direction A, and the bolt 64 hits the front of the bolt 46 like a bullet.
  • Its shoulder 48 is in the area in which it lies Locking body 50 touches, inclined upward at a small angle against the magnetic axis B.
  • this angle is dimensioned such that it is close to the area of self-locking.
  • the bolt 46 and the locking body 50 are both made of hardened steel and the shoulder 48 and the locking body 50 are ground.
  • the angle between the magnetic axis B and the shoulder 48, in the region in which it touches the locking body 50 is advantageously approximately 4 to 6 °.
  • a moderately strong impact of the bolt 64 on the bolt 46 is sufficient to pivot it backwards.
  • the support body 40 supports the retaining member 26 and at the same time the holding-down member 30 via a spring arrangement 70, which is accommodated above the electromagnet 60 inside the housing 24 and partially inside the retaining member 26.
  • the spring arrangement 70 includes a screw 72 pointing forward in the pressing direction A, which is rotatably mounted in the support body 40 and is prevented by a transverse pin 74 from axially displacing with respect to the support body.
  • the screw 72 is accessible through a recess (not shown) in the housing 24 for a torque-transmitting tool, for example an ordinary screwdriver.
  • a nut 76 is screwed onto the screw 72 from the front and is longitudinally displaceable in the support body 40 and secured against rotation.
  • the rear end of a spring 78 is supported on the nut 76 in the form of a helical compression spring, which presses with its front end against a sleeve 80 which is telescopically guided longitudinally in the support body 40, so that it normally rests on a shoulder 82 formed in the retaining member 26 and thus transmits the force of the spring 78 acting in the pressing direction A directly to a greater or lesser extent to the retaining member 26.
  • a roller 84 is mounted, which in the groove 36 of the lower
  • REPLACEMENT BL 4l holding member 30 presses.
  • the rear sole part 14 pushes the nose 34 upward, so that the hold-down member 30, as shown by a comparison of FIG. 2 with FIG. 1, counterclockwise against the force of the spring arrangement 70 by a small angle , i.e. to the rear, is pivoted.
  • the spring arrangement 70 which is independent of the user, it contains a central pull rod 86 which is firmly screwed to the front end of the sleeve 80 and which extends rearwards through a stopper 88 which is screwed into the screw 72 from the front .
  • the preload of the spring 78 set in this way can be increased according to the needs of the user by turning the screw 72 so that the nut 76 moves forward.
  • the force achieved in this way in the pressing direction A remains effective only as long as the bolt 46 remains in its normal position and thus holds the locking body 50 in its locking position. This is the case as long as the electromagnet 60 remains de-energized.
  • the locking body 50 therefore has a tendency to rotate in the correct sense, counterclockwise according to FIG. 2.
  • the blocking body 50 has to overcome only negligibly small frictional forces, which are essentially based on rolling friction, in order to move from its blocking position to a further rearward evasive position in which it can no longer prevent the supporting body 40 from moving from its rest position to a retracted position reach.
  • the pins 52 of the locking body 50 do not leave the vertical slots 54 in the two cheeks 72 of the support body 40.
  • the bolt 46 and the locking body 50 remain ready to return to the normal position of the locking bolt, which is also the locking position of the locking body, as soon as the return spring 56 succeeds in pushing the support body 40 back forward into its rest position.
  • both the retaining member 26 and the holding-down member 30 release the sole part 14.
  • the retaining member 26, however, remains constantly loaded by an additional spring 90, which is only moderately pretensioned in comparison to the spring 78 and presses in the pressing direction A against a guide pin 92 fastened to the retaining member 26 and also extending in the pressing direction A.
  • This has a longitudinal slot 94 through which a vertical pin 96 attached to the housing 24 extends, whereby the size of the possible longitudinal movement of the retaining member 26 relative to the housing 24 is limited.
  • the spring 90 normally holds the retaining member 28 in its front end position defined by the longitudinal slot 94, even if the holding-down member 30 loads the spring arrangement 70 so that the sleeve 80 moves away from the shoulder 92.
  • a ski brake 100 is also indicated, which is pivotally mounted in the bearing sleeve 32 and is thus integrated into the elastic locking device 20.
  • the movements of the retaining member 26 and the holding-down member 30 are sensed separately.
  • the front end is supported on the retaining member 26 and the holding-down member 30, each of a rod 102 or 104, which is guided in the housing 24 in a longitudinally displaceable manner and is biased in the pressing direction A by a spring 106 or 108.
  • the preload of the spring 108 assigned to the hold-down member 30 is approximately four times the preload of the spring 106.
  • a cam 110 or 112 is arranged, which is normally provided by a weak spring 114 or 116 a shoulder 118 or 120 of the rod in question is held so that it can be moved backwards together with it.
  • the cam 110 on the rod 102 is assigned two switches 122 and 124 which can be mechanically actuated by it and which are arranged at a distance from one another, while the cam 112 on the rod 104 is assigned only one likewise mechanically actuated switch 126.
  • Each of the two cams 110 and 112 is further assigned a stop 128 or 130 formed on the housing 24 such that the cam 110 cannot be moved past the switch 124 and the cam 112 cannot past the switch 126.
  • the retaining member 26 should be moved so far back and / or the holding-down member 30 should be pivoted so far back that the associated rod 102 or 104 should have its shoulder 118 or 1S
  • each of the switches 124 and 126 is connected in series with a timer 132 and 134, which can be adjustable, and both switches 122 and 124 together with the associated timers 132 and 134 are parallel to one another in the circuit of the electromagnet 60, the includes a power source 136 formed by a plurality of batteries. These are preferably lithium SO 2 batteries which remain charged for a very long time when not in use and, in order to be able to act, require activation from time to time by a short circuit.
  • Switch 122 serves this purpose and is run over by associated cam 110 each time the ski 10 is buckled up. The cam 110 then normally remains in an intermediate position between the switches 122 and 124, as indicated by dash-dotted lines in FIG. 6.
  • REPLACEMENT LEAF 4L the period of time set by the timer 134, for example 0.03 s, has elapsed.
  • the bolt 64 strikes the bolt 46 with such force that it swings backward out of its normal position, the locking body 50 reaches its evasive position and, as a result, the support body 40 moves into its retracted position, so that the retaining member 26 and there Hold-down member 30 are relieved of the pressure of the spring arrangement and release the ski boot 12.
  • all the movable components return to their normal position under the influence of the springs 56, 66 and 90, so that the ski 10 can be strapped on again without further ado.

Abstract

PCT No. PCT/EP92/00265 Sec. 371 Date Nov. 17, 1992 Sec. 102(e) Date Nov. 17, 1992 PCT Filed Feb. 6, 1992 PCT Pub. No. WO92/17252 PCT Pub. Date Oct. 15, 1992.A retainer member (26) is guided for displacement at a housing (24) which is adapted to be fastened to a ski (10), the retainer member being biased by a spring assembly (70) in the direction toward a ski boot (12). The housing (24) contains a support member (40) kept in an inoperative position, in which it forms a thrust bearing for the spring assembly (70), by a locking member (50) as long as the latter is in locking position. Normally, a shoulder (48) formed at a pawl (46) which is pivotable about a transverse pivot axis (44) presses against the locking member (50). An electromagnet (60) is associated with the pawl (46) and becomes energized when the retainer member (26) or a hold-down member (30) supported on the same runs the risk of becoming overloaded. Upon excitation of the electromagnet (60), its armature (62) hits against the pawl (46) which then releases the locking member (50). Thereupon the support member (40) moves into its retracted position so that the retainer member (26) and the hold-down member (30) both are relieved of the pressure of the spring assembly (70), thus releasing the ski boot (12).

Description

Elektronische Sk1s1cherheitsb1ndung Electronic ski safety device
Die Erfindung betrifft eine elastische Sperrvorrichtung, ins- bes. ein Fersenteil einer Skisicherheitsbindung, mitThe invention relates to an elastic locking device, in particular a heel part of a ski safety binding, with
- einem Gehäuse, das an einem von zwei miteinander zu ver¬ riegelnden Gegenständen, insbes. einem Ski, zu befestigen ist,a housing which is to be fastened to one of two objects to be locked together, in particular a ski,
- einem Rückhalteglied, das am Gehäuse in einer Andrückrich¬ tung zu dem zweiten der miteinander zu verriegelnden Gegen¬ stände, insbes. einem Skistiefel, bewegbar geführt ist,a retaining member which is movably guided on the housing in a pressing direction to the second of the objects to be locked together, in particular a ski boot,
- einem Stützkörper, der in bezug auf das Gehäuse aus einer Ruhestellung entgegen der Andrückrichtung in eine Rückzug¬ stellung bewegbar ist,a support body which can be moved with respect to the housing from a rest position against the pressing direction into a retracted position,
- einer Federanordnung, die sich am Stützkörper abstützt und das Rückhalteglied in der Andrückrichtung belastet,a spring arrangement which is supported on the support body and loads the retaining member in the pressing direction,
- mindestens einem Sperrkörper, der normalerweise eine Sperrstellung einnimmt, in der er den Stützkörper in seiner Ruhestellung hält, und der in eine Ausweichstellung bewegbar ist, in der er eine Bewegung des Stützkörpers in seine Rück¬ zugsstellung zuläßt,at least one locking body which normally assumes a locking position in which it holds the support body in its rest position and which can be moved into an evasive position in which it allows the support body to move into its retracted position,
- einem Riegel, der den Sperrkörper normalerweise in seiner Sperrstellung hält, und- a bolt that normally holds the locking body in its locked position, and
T - einem Elektromagneten mit einem Anker, der in einem vorge¬ gebenen Schaltzustand eines den Elektromagneten enthaltenden Stromkreises längs einer Magnetachse gegen den Riegel be¬ wegbar ist, um ihn unwirksam zu machen und dadurch eine Be¬ wegung des Stützkörpers in seine Rückzugstellung zu ermög¬ lichen.T an electromagnet with an armature which, in a predetermined switching state of a circuit containing the electromagnet, can be moved along a magnetic axis against the bolt in order to render it ineffective and thereby enable the support body to be moved into its retracted position .
Sperrvorrichtungen dieser Gattung in Ausgestaltungen als Fersenteil einer Skisicherheitsbindung sind aus der DE 3808643 Cl bekannt. Sie haben ein am Ski befestigtes Ge¬ häuse, an dem ein Rückhalteglied in Skilängsrichtung nach vorne verschiebbar geführt und durch eine Federanordnung nach vorne vorgespannt ist. In einem vorderen Endbereich des Rückhaltegliedes ist ein Niederhalteglied um eine querlie¬ gende Achse schwenkbar gelagert. Die Federanordnung, die das Rückhalteglied nach vorne vorspannt, ist so ausgebildet, daß sie zugleich das Niederhalteglied im Sinne einer Schwenkung nach vorne unten belastet. Nach dem Anschnallen eines Skistiefels wird dessen hinteres Sohlenteil von einem am Niederhalteglied ausgebildeten unteren Vorsprung nach vorne gedrückt, während ein weiter oben am Niederhalteglied aus¬ gebildeter hakenartiger Vorsprung das hintere Sohlenteil nach unten drückt. Hinter dem Niederhalteglied ist im Ge¬ häuse der SperrVorrichtung eine Stange längsverschiebbar geführt und nach vorne vorgespannt, sodaß sie sich mit ihrem vorderen Ende an einer Rückenfläche des Niederhaltegliedes abstützt. Weiter hinten ist an der Stange ein Nocken ausge¬ bildet, dem ein Schalter im Stromkreis eines Elektromagneten zum Entriegeln der Sperrvorrichtung zugeordnet ist. Bei einem Frontalsturz wird das Niederhalteglied von dem sich nach oben bewegenden hinteren Sohlenteil aufwärts und nach hinten geschwenkt, so daß über die Stange und deren Nocken der Schalter betätigt wird und dadurch der Elektromagnet Strom erhält. Infolgedessen wird ein Magnetanker nach vorne gezogen und schlägt gegen das hintere Ende eines längsver¬ schiebbaren Riegels, der nach hinten vorgespannt ist und einen sich nach hinten verjüngenden kegelförmigen Abschnitt aufweist, welcher zwischen zwei als Sperrkörper dienende Wälzkörper eingreift und diese normalerweise in einer Sperrstellung hält, in der sie einen Stützkörper in einer Ruhestellung im Gehäuse festhalten. Sobald der Riegel vom Magnetanker nach vorne geschlagen wird, verlassen die beiden Sperrkörper ihre Sperrstellung und geben den Stützkörper frei. Der Stützkörper, an dem sich das hintere Ende der Federanordnung abstützt, bewegt sich unter deren Druck nach hinten in eine Rückzugsteilung; dadurch wird die Vorspannung der Federanordnung abgebaut, so daß das Rückhalteglied und das an ihm gelagerte Niederhalteglied sich nach hinten be¬ wegen und das hintere Sohlenteil des Skistiefels freigeben.Locking devices of this type in designs as a heel part of a ski safety binding are known from DE 3808643 Cl. They have a housing which is attached to the ski and on which a retaining member can be moved forward in the longitudinal direction of the ski and is biased forward by a spring arrangement. In a front end region of the retaining member, a holding-down member is pivotally mounted about a transverse axis. The spring arrangement, which biases the retaining member forward, is designed so that it also loads the hold-down member in the sense of pivoting forward downward. After a ski boot is buckled on, its rear sole part is pressed forward by a lower projection formed on the hold-down member, while a hook-like projection formed further up on the hold-down member presses the rear sole part downward. Behind the hold-down member, a rod is guided longitudinally displaceably in the housing of the locking device and is biased forward so that its front end is supported on a back surface of the hold-down member. Further to the rear, a cam is formed on the rod, which is assigned a switch in the circuit of an electromagnet for unlocking the locking device. In the event of a frontal fall, the hold-down member is pivoted upwards and backwards by the rear sole part moving upward, so that the switch is actuated via the rod and its cams and the electromagnet receives current as a result. As a result, a magnetic armature moves forward pulled and strikes against the rear end of a longitudinally displaceable bolt which is prestressed to the rear and has a conical section which tapers towards the rear and which engages between two rolling bodies serving as locking bodies and normally holds them in a locking position in which they support a supporting body hold in a rest position in the housing. As soon as the bolt is struck forward by the magnetic armature, the two locking bodies leave their locking position and release the supporting body. The support body, on which the rear end of the spring arrangement is supported, moves rearward under its pressure into a retraction pitch; the prestress of the spring arrangement is thereby reduced, so that the retaining member and the retaining member mounted on it move backwards and release the rear sole part of the ski boot.
Diese bekannte Sperrvorrichtung arbeitet einwandfrei, wenn der Elektromagnet derart bemessen ist und mit einem so großen Strom versorgt wird, daß sein Anker mit erheblicher kinetischer Energie gegen das hintere Ende des Riegels prallt und dadurch die Reibung überwindet, die sich der erforderlichen, nach vorne gerichteten Bewegung des zwischen den beiden Sperrkörpern eingeklemmten Riegels widersetzt. Diese Reibung ist abhängig von der Vorspannung der Federan¬ ordnung, die von dem Niederhalteglied in nach vorne und nach unten gerichtete, auf das hintere Sohlenteil wirkende Kräfte umgesetzt wird. Damit im Magnetanker die zum Überwinden der Reibung erforderliche kinetische Energie aufgebaut werden kann, muß der Magnetanker eine erhebliche träge Masse haben. Um zu verhindern, daß diese träge Masse bei bestimmten Fahr¬ zuständen zum unbeabsichtigten Auslösen der Skisicherheits¬ bindung führt, muß der Magnetanker durch eine eigene Feder nach hinten vorgespannt sein, was aber die Folge hat, daß der Elektromagnet einen noch größeren Strombedarf hat.This known locking device works perfectly when the electromagnet is dimensioned and supplied with such a large current that its armature impinges against the rear end of the bolt with considerable kinetic energy and thereby overcomes the friction which is necessary for the forward movement required of the bolt clamped between the two locking bodies. This friction is dependent on the pretension of the spring arrangement, which is converted by the hold-down member into forces directed forwards and downwards and acting on the rear sole part. So that the kinetic energy required to overcome the friction can be built up in the magnet armature, the magnet armature must have a considerable inert mass. In order to prevent this inertial mass from triggering the ski safety binding unintentionally under certain driving conditions, the magnet armature must be biased backwards by its own spring, but this has the consequence that the electromagnet has an even greater current requirement.
ERSATZBLATT iREPLACEMENT LEAF i
Der Erfindung liegt die Aufgabe zugrunde, eine mit einem Elektromagneten ausgerüstete elastische Sperrvorrichtung derart weiterzubilden, daß sie mit hoher Genauigkeit und mit geringem Stromverbrauch auslöst, wenn bestimmte Belastungs- zustände eintreten.The object of the invention is to develop an elastic locking device equipped with an electromagnet in such a way that it triggers with high accuracy and with low power consumption when certain load conditions occur.
Diese Aufgabe ist erfindungsgemäß mit einer elastischen Sperrvorrichtung der eingangs beschriebenen Gattung gelöst, bei welcher der Riegel um eine quer zur Magnetachse in einem Abstand von dieser angeordnete Schwenkachse schwenkbar ge¬ lagert ist und in einem Abstand von der Schwenkachse eine Schulter aufweist, die normalerweise gegen den Sperrkörper drückt und mit. der Magnetachse einen im Bereich der Selbst¬ hemmung liegenden Winkel einschließt.This object is achieved according to the invention with an elastic locking device of the type described at the outset, in which the bolt is pivotally mounted about a pivot axis arranged transversely to the magnetic axis and at a distance from the pivot axis has a shoulder which normally rests against the Locking body presses and with. the magnetic axis encloses an angle in the area of the self-locking.
Es hat sich herausgestellt, daß beim Schwenken des Riegels, das zu einem sicheren Abgleiten seiner Schulter vom Sperrkör¬ per führt, nur ein verhältnismäßig geringer Reibungswider¬ stand zu überwinden ist, wofür ein leichter vom Magnetanker auf den Riegel ausgeübter Schlag genügt.It has been found that when the bolt is pivoted, which leads to its shoulder slipping securely from the locking body, only a relatively low frictional resistance can be overcome, for which a slight blow from the magnet armature onto the bolt is sufficient.
Der Magnetanker braucht deshalb nur eine geringe träge Masse aufzuweisen und erfordert infolgedessen für seine Beschleu¬ nigung nur ein verhältnismäßig schwaches Magnetfeld, das mit geringem Stromverbrauch erzeugt werden kann.The magnet armature therefore only needs to have a low inertial mass and consequently only requires a relatively weak magnetic field for its acceleration, which can be generated with low power consumption.
Zweckmäßigerweise ist die Schwenkach.se derart oberhalb des Sperrkörpers angeordnet, daß der Riegel unter dem Einfluß seines Eigengewichts bestrebt ist, in seine Normalstellung zu pendeln, in der er den Sperrkörper in seiner Sperrstel¬ lung hält. Stattdessen oder zusätzlich kann der Riegel unter elastischer Vorspannung im Sinne einer Schwenkung in seine Normalstellung stehen.The swivel axis is expediently arranged above the locking body in such a way that, under the influence of its own weight, the bolt strives to oscillate into its normal position, in which it holds the locking body in its locking position. Instead or in addition, the bolt can be under its elastic bias in the sense of pivoting into its normal position.
ERSATZBLATT _rREPLACEMENT LEAF _r
Bei einer bevorzugten Auεführungsform der Erfindung ist der Riegel am Stützkörper gelagert und nach Freigabe des Sperr¬ körpers gemeinsam mit diesem und dem Stützkörper entgegen der Andrückrichtung, bei einem Fersenteil einer Skisicher¬ heitsbindung also nach hinten, bewegbar.In a preferred embodiment of the invention, the latch is mounted on the support body and, after release of the locking body, can be moved together with the latter and the support body against the pressing direction, that is to say to the rear in the case of a heel part of a ski safety binding.
Ein unbeabsichtiges Auslösen läßt sich, besonders bei einem Fersenteil einer Skisicherheitsbindung, mit großer Zuverläs¬ sigkeit verhindern, wenn der Elektromagnet zwischen dem Rückhalteglied und dem Riegel angeordnet ist, die Magnet¬ achse sich parallel zur Andrückrichtung erstreckt, und der Anker in dem vorgegebenen Schaltzustand entgegen der An¬ drückrichtung bewegbar ist. Ein mit diesen Merkmalen ausge¬ stattetes Fersenteil einer Sicherheitsbindung ist weitgehend unempfindlich gegen plötzliche, für den Skifahrer aber noch ungefährliche Verzögerungen, die beispielsweise bei einem Aufsprung oder bei schneller Fahrt durch eine Mulde auftre¬ ten können.Unintentional triggering can be prevented with great reliability, especially in the case of a heel part of a ski safety binding, if the electromagnet is arranged between the retaining member and the bolt, the magnetic axis extends parallel to the pressing direction, and the armature counteracts the predetermined switching state the pressing direction is movable. A heel part of a safety binding equipped with these features is largely insensitive to sudden delays, which are still harmless to the skier, which can occur, for example, when jumping up or driving quickly through a depression.
Um die obengenannte Aufgabe zu lösen, kann eine Sperrvor¬ richtung der eingangs beschriebenen Gattung erfindungsgemäß auch dadurch ausgestaltet sein, daßIn order to achieve the above-mentioned object, a blocking device of the type described in the introduction can also be designed according to the invention in that:
- am Rückhalteglied ein Niederhalteglied für den zweiten der miteinander zu verriegelnden Gegenstände, insbesondere einen Skistiefel, zwischen einer Niederhaltestellung und einer Freigabestellung bewegbar gelagert ist,a hold-down member for the second of the objects to be locked together, in particular a ski boot, is movably mounted on the retention member between a hold-down position and a release position,
- die Federanordnung das Niederhalteglied in Richtung zu seiner Niederhaltestellung vorspannt,the spring arrangement prestresses the hold-down member in the direction of its hold-down position,
- das Rückhalteglied eine Anlagefläche für den zweiten Gegenstand, insbesondere Skistiefel, aufweist, und- The retaining member has a contact surface for the second object, in particular ski boots, and
- dem Rückhalteglied sowie dem Niederhalteglied je ein Schalter im Stromkreis des Elektromagneten zugeordnet ist.- The retention member and the hold-down member is assigned a switch in the circuit of the electromagnet.
ERSATZBLATT iREPLACEMENT LEAF i
Dadurch wird erreicht, daß das Niederhalteglied nur Nieder¬ haltekräfte aufzubringen hat und somit den ihm zugeordneten Schalter z. B. nur im Falle eines Frontalsturzes betätigt. Die nach vorne gerichteten Kräfte, die z. B. erforderlich sind, um einen Skistiefel gegen eine Vorderbindung üblicher Bauart zu drücken, werden hingegen unmittelbar vom Rückhal¬ teglied ausgeübt mit der Folge, daß das Rückhalteglied z. B. auf Drehstürze anspricht, bei denen der Skistiefel vom vorderen Bindungsteil nach hinten gedrückt wird. Die damit verbundene Bewegung des Rückhaltegliedes wird vom zugehöri¬ gen Schalter unabhängig vom Schalter für das Niederhalte¬ glied überwacht. Diese beiden Schalter lassen sich entspre¬ chend den bei unterschiedlichen Belastungszuständen, bei¬ spielsweise bei Frontalstürzen einerseits und bei Dreh¬ stürzen andererseits, zulässigen Belastungen so einstellen, daß der Skistiefel bei jeder dieser beiden Sturzarten und auch bei einer Kombination beider, einem sogenannten Dia¬ gonalsturz, zuverlässig und mit jeweils geringem Stromver¬ brauch des Elektromagneten freigegeben wird.It is thereby achieved that the hold-down member only has to apply hold-down forces and thus the switch assigned to it z. B. only operated in the event of a frontal fall. The forward forces, the z. B. are required to press a ski boot against a front binding of conventional design, however, are exercised directly by the retaining member, with the result that the retaining member z. B. responsive to lintels in which the ski boot is pushed back by the front binding part. The associated movement of the restraining member is monitored by the associated switch independently of the switch for the holding-down member. These two switches can be set in such a way that the loads permissible under different load conditions, for example with frontal falls on the one hand and with rotary falls on the other hand, are such that the ski boot is suitable for each of these two types of fall and also for a combination of both, a so-called slide fall gonally, reliably and with low current consumption of the electromagnet is released.
Die beiden Schalter sind zweckmäßigerweise in einem gemein¬ samen Stromkreis parallelgeschaltet. Es ist ferner zweck¬ mäßig, wenn sie beide mit einem gemeinsamen Zeitglied in Reihe geschaltet sind. Jedem der beiden Schalter kann aber auch ein gesondertes Zeitglied zugeordnet sein, wenn z. B. bei Belastungen, die bei einem Frontalsturz auftreten können, schneller oder langsamer reagiert werden soll als bei Belastungen, die bei einem Drehsturz auftreten können.The two switches are expediently connected in parallel in a common circuit. It is also expedient if they are both connected in series with a common timing element. Each of the two switches can also be assigned a separate timer if, for. B. with loads that can occur in a frontal fall, should react faster or slower than with loads that can occur in a rotary fall.
Dem Rückhalteglied und dem Niederhalteglied ist zum Betä¬ tigen des ihm zugeordneten Schalters vorzugsweise je eine von zwei Stangen zugeordnet, die auf je einer Seite einer Längsmittelebene der SperrVorrichtung angeordnet sind. rTo hold the switch assigned to it, the retaining member and the holding-down member are preferably each assigned one of two rods which are arranged on one side of a longitudinal center plane of the locking device. r
Diese Ausführungsform der Erfindung ist vorzugsweise dadurch weitergebildet, daß auf mindestens einer der Stangen zum Betätigen des zugehörigen Schalters ein Nocken verschiebbar angeordnet ist, der durch eine Feder in Richtung auf eine an der Stange ausgebildete Schulter vorgespannt und durch einen gehäusefesten Anschlag gehindert ist, über den zugehörigen Schalter hinaus nach hinten verschoben zu werden.This embodiment of the invention is preferably further developed in that a cam is slidably arranged on at least one of the rods for actuating the associated switch, which is biased by a spring in the direction of a shoulder formed on the rod and is prevented by a stop fixed to the housing via which associated switch to be moved backwards.
Ein Ausführungsbeiεpiel der Erfindung wird im folgenden an¬ hand schematischer Zeichnungen mit weiteren Einzelheiten erläutert. Es zeigen:An exemplary embodiment of the invention is explained in more detail below with the aid of schematic drawings. Show it:
Fig. 1 eine erfindungegemäße elastische Sperrvorrichtung in Form eines Fersenteils einer Skisicherheitsbin¬ dung in einer Seitenansicht, die teilweise als senkrechter Längsschnitt I-I in Fig. 6 gezeichnet ist;1 shows an inventive elastic locking device in the form of a heel part of a ski safety binding in a side view, which is partially drawn as a vertical longitudinal section I-I in FIG. 6;
Fig. 2 den senkrechten Längsmittelschnitt II-II in Fig. 5;Figure 2 shows the vertical longitudinal center section II-II in Fig. 5.
Fig. 3 den Querschnitt III-III in Fig. 2;Fig. 3 shows the cross section III-III in Fig. 2;
Fig. 4 den Querschnitt IV-IV in Fig. 2;Fig. 4 shows the cross section IV-IV in Fig. 2;
Fig. 5 den Querschnitt V-V in Fig. 2;Fig. 5 shows the cross section V-V in Fig. 2;
Fig. 6 den wagerechten Teilschnitt VI-VI in Fig. 1; und6 shows the horizontal partial section VI-VI in FIG. 1; and
Fig. 7 ein elektrisches Schaltschema.Fig. 7 is an electrical circuit diagram.
In den Zeichnungen ist ein Mittelteil eines Skis 10 mit einem Skistiefel 12 dargestellt, von dem hier nur ein hinteres Sohlenteil 14 interessiert. Auf den Ski 10 ist eine Schiene 16 befestigt, die ein zur senkrechten Längsmittel¬ ebene 18 des Skis symmetrisches Profil in- Form eines liegen¬ den C hat. In der Schiene 16 ist eine elastische Sperrvor¬ richtung 20 gehalten, die im dargestellten Beispiel als Fersenteil einer Skisicherheitsbindung dient und die Aufgabe hat, das hintere Sohlenteil 14 nach vorne, gegen eine nichtIn the drawings, a middle part of a ski 10 with a ski boot 12 is shown, of which only a rear sole part 14 is of interest here. A rail 16 is fastened to the ski 10 and has a profile in the form of a lying C that is symmetrical with the vertical longitudinal center plane 18 of the ski. An elastic locking device 20 is held in the rail 16, which in the example shown serves as a heel part of a ski safety binding and has the task of not pressing the rear sole part 14 forward
ERSATZBLATT l dargestellte Vorderbindung bekannter Bauart, sowie nach unten zu drücken und dieses hintere Sohlenteil 14 bei Gefahr im Falle eines Drehsturzes nach hinten, und im Falle eines Frontalstürzes nach oben, freizugeben.REPLACEMENT LEAF l shown front binding of known design, as well as to press down and release this rear sole part 14 in the event of danger in the event of a fall to the rear and in the event of a frontal fall upwards.
Die elastische SperrVorrichtung 20 ist insgesamt im wesent¬ lichen symmetrisch zur Längsmittelebene 18 gestaltet und hat eine Grundplatte 22, die in der Schiene 16 längsverstellbar geführt und mit einer nicht dargestellten Rastvorrichtung von bekannter Bauart am Ski 10 im Bereich der erwähnten Vorderbindung festgelegt ist. Auf der Grundplatte 22 ist ein Gehäuse 24 befestigt, in dem ein Rückhalteglied 26 in Ski¬ längsrichtung verschiebbar geführt ist und eine nach vorne gerichtete Kraft auf das hintere Sohlenteil 14 ausübt; die Richtung dieser Kraft wird im folgenden als Andrückrichtung A bezeichnet. Zum Übertragen dieser Kraft auf die Rückseite des hinteren Sohlenteils 14 ist an der Vorderseite des Rückhaltegliedes 26 eine Anlagefläche 28 ausgebildet. In Fig. 1 ist der Skistiefel 12 in seiner Normalstellung ab¬ gebildet, in der sein hinteres Sohlenteil 14 an der Anla¬ gefläche 28 anliegt.The elastic locking device 20 is designed essentially symmetrically to the longitudinal center plane 18 and has a base plate 22 which is longitudinally adjustable in the rail 16 and is fixed to the ski 10 in the region of the aforementioned front binding with a not-shown locking device of known design. A housing 24 is fastened on the base plate 22, in which a retaining member 26 is guided so as to be displaceable in the longitudinal direction of the ski and exerts a forward force on the rear sole part 14; the direction of this force is referred to below as the pressing direction A. To transmit this force to the rear of the rear sole part 14, a contact surface 28 is formed on the front of the retaining member 26. 1 shows the ski boot 12 in its normal position, in which its rear sole part 14 rests on the contact surface 28.
Fig. 2 zeigt den Skistiefel während des Einsteigens in die Bindung, wobei vorausgesetzt wird, daß die nicht dargestell¬ te Vorderbindung durch Niederdrücken der Skistiefelspitze geschlossen wird.Fig. 2 shows the ski boot while getting into the binding, it being assumed that the front binding, not shown, is closed by pressing the tip of the ski boot down.
Am Rückhalteglied 26 ist ein als Hebel ausgebildetes Nieder¬ halteglied 30 in der Längsmittelebene 18 auf- und abschwenk¬ bar gelagert; als Schwenklagerung dient eine Lagerhülse 32 im unteren vorderen Bereich des Rückhalteglieds 26. Das Niederhalteglied 30 hat eine Nase 34, die gegen die Ober¬ seite des hinteren Sohlenteils 14 drückt, eine von der Nase 7 abgewandte Hohlkehle 36 und darüber eine ebene Rückenfläche 38. Außer mit der Nase 34, die das hintere Sohlenteil 14 niederdrückt, berührt das Niederhalteglied 30 den Skistiefel 12 nicht; das Niederhalteglied kann deshalb nur nach oben gerichtete Kräfte aufnehmen, die vom hinteren Sohlenteil 14 auf die Nase 34 ausgeübt werden. Vom hinteren Sohlenteil 14 ausgeübte, nach hinten gerichtete Kräfte werden hingegen un¬ mittelbar vom Rückhalteglied 26 aufgennommen.On the retaining member 26, a holding member 30 designed as a lever is mounted in the longitudinal center plane 18 so that it can be swiveled up and down; a bearing sleeve 32 in the lower front area of the retaining member 26 serves as a pivot bearing. The holding-down member 30 has a nose 34 which presses against the upper side of the rear sole part 14, one from the nose 7 facing away from the groove 36 and above it a flat back surface 38. Except with the nose 34, which presses down the rear sole part 14, the hold-down member 30 does not touch the ski boot 12; the hold-down member can therefore only absorb upward forces which are exerted on the nose 34 by the rear sole part 14. By contrast, rearward forces exerted by the rear sole part 14 are absorbed directly by the retaining member 26.
Im Gehäuse 24 ist ferner ein Stützkörper 40 längsverschieb¬ bar geführt. Der Stützkörper 40 ist im wesentlichen zylind¬ risch und hat an seinem hinteren Ende zwei zur Längsmittel¬ ebene 18 parallele, senkrecht nach unten ragende Wangen 42, die in ihrem oberen Bereich eine Schwenkachse 44 in Form eines wagerecht querliegenden, also zur senkrechten Längs¬ mittelebene 18 normalen Bolzens tragen. Auf der Schwenkachse 44 ist in der Längsmittelebene 18 pendelnd ein Riegel 46 gelagert, der sich in seiner in Fig. 2 mit vollen Linien gezeichneten Normalstellung im rechten Winkel zur Grund¬ platte 22 von der Schwenkachse 44 nach unten erstreckt.In the housing 24, a support body 40 is also longitudinally displaceable. The support body 40 is essentially cylindrical and has at its rear end two cheeks 42 which are parallel to the longitudinal center plane 18 and project vertically downward and which have in their upper region a pivot axis 44 in the form of a horizontally transverse, that is to say the perpendicular, longitudinal center plane Wear 18 normal bolts. On the pivot axis 44, a bolt 46 is mounted in a pendulum fashion in the longitudinal center plane 18, which in its normal position drawn in full lines in FIG. 2 extends at a right angle to the base plate 22 from the pivot axis 44 downward.
Im unteren Bereich des Riegels 46 ist eine Schulter 48 aus¬ gebildet, die in der Normalstellung des Riegels einen wal¬ zenförmigen Sperrkörper 50 nach unten drückt. Der Sperr¬ körper 50 erstreckt sich parallel zur Schwenkachse 44, also ebenfalls im rechten Winkel zur Längsmittelebene 18, und weist an seinen beiden seitlichen Ende Zapfen 52 auf, die in je einem senkrechten Schlitz 54 in je einer der Wangen 42 geführt sind.In the lower region of the bolt 46, a shoulder 48 is formed which, in the normal position of the bolt, presses a roller-shaped locking body 50 downward. The locking member 50 extends parallel to the pivot axis 44, also at right angles to the longitudinal center plane 18, and has pins 52 at its two lateral ends, each of which is guided in a vertical slot 54 in one of the cheeks 42.
In Höhe der Schwenkachse 44 ist eine Rückstellfeder 56 ange¬ ordnet, die als schraubenförmige Druckfeder ausgebildet, hinten am Gehäuse 14 abgestützt und ständig bestrebt ist, den Stützkörper 40 in seiner vor allem aus Fig. 2 ersicht¬ lichen vorderen Endestellung zu halten, die im folgenden alsAt the level of the pivot axis 44, a return spring 56 is arranged, which is designed as a helical compression spring, is supported on the rear of the housing 14 and is constantly striving to hold the support body 40 in its front end position, which can be seen in FIG following as
ERSATZBLATT 4oREPLACEMENT LEAF 4o
Ruhestellung bezeichnet wird. Die Rückstellfeder 56 übt zugleich auf den Riegel 46 ein kleines Drehmoment aus, durch das er in seine NormalStellung zurückgeführt wird, wenn er, wie in Fig. 2 mit gestrichelten Linien angedeutet, nach hinten ausgeschwenkt worden ist. In seiner Normalstellung hält der Riegel 46 den Sperrkörper 50 in der aus Fig. 2 und 5 ersichtlichen Stellung in einer teilzylindrischen, nach hinten ansteigenden Mulde 58 der Grundplatte 22. In dieser Stellung, die im folgenden als Sperrstellung bezeichnet wird, verhindert der Sperrkörper 50 gemeinsam mit dem Riegel 46 jegliche Bewegung des Stützkörpers 40 aus seiner Ruhestel¬ lung nach hinten.Rest position is called. The return spring 56 also exerts a small torque on the bolt 46, by means of which it is returned to its normal position when, as indicated by the broken lines in FIG. 2, it has been swung out to the rear. In its normal position, the bolt 46 holds the locking body 50 in the position shown in FIGS. 2 and 5 in a partially cylindrical, rearwardly rising trough 58 of the base plate 22. In this position, which is referred to below as the locking position, the locking body 50 prevents together with the bolt 46 any movement of the support body 40 from its rest position to the rear.
Vor den Wangen 42 und dem Riegel 46 ist im Gehäuse 24 ein Elektromagnet 60 angeordnet, dessen im folgenden als Magnet¬ achse B bezeichnete Achse in der Längsmittelebene 18 liegt und sich parallel zur Grundplatte 22 erstreckt. Der Elek¬ tromagnet 60 hat einen Anker 62, der einen nach hinten ragenden schlanken Bolzen 64 aufweist und normalerweise durch eine schwache Feder 66 in einer vorderen Endstellung gehalten ist, in der er an einer Zwischenwand 68 des Gehäu¬ ses 24 anliegt.In front of the cheeks 42 and the bolt 46, an electromagnet 60 is arranged in the housing 24, the axis hereinafter referred to as the magnetic axis B lies in the longitudinal center plane 18 and extends parallel to the base plate 22. The electromagnet 60 has an armature 62 which has a slender bolt 64 projecting to the rear and is normally held in a front end position by a weak spring 66, in which it rests on an intermediate wall 68 of the housing 24.
Wenn der Elektromagnet 60 erregt wird, bewegt sich der Anker 62 längs der Magnetachse B nach hinten, also entgegen der Andrückrichtung A, und der Bolzen 64 schlägt geschoßartig gegen die Vorderseite des Riegels 46. Dessen Schulter 48 ist in dem Bereich, in dem sie den Sperrkörper 50 berührt, unter einem kleinen Winkel gegen die Magnetachse B nach vorne aufwärts geneigt. Dieser Winkel ist bei gegebener Auswahl der Werkstoffe des Riegels 16 und des Sperrkörpers 50 so bemessen, daß er knapp im Bereich der Selbsthemmung liegt. Im allgemeinen kann vorausgesetzt werden, daß der Riegel 46 und der Sperrkörper.50 beide aus gehärtetem Stahl bestehen und die Schulter 48 sowie der Sperrkörper 50 geschliffen sind. In diesem Fall beträgt der Winkel zwischen der Magnet¬ achse B und der Schulter 48, in dem Bereich, in dem sie den Sperrkörper 50 berührt, zweckmäßigerweise ungefähr 4 bis 6°. Somit genügt ein mäßig starker Aufprall des Bolzens 64 auf den Riegel 46, um diesen nach hinten zu schwenken.When the electromagnet 60 is energized, the armature 62 moves backwards along the magnetic axis B, that is to say counter to the pressing direction A, and the bolt 64 hits the front of the bolt 46 like a bullet. Its shoulder 48 is in the area in which it lies Locking body 50 touches, inclined upward at a small angle against the magnetic axis B. For a given selection of the materials of the locking bar 16 and the locking body 50, this angle is dimensioned such that it is close to the area of self-locking. In general, it can be assumed that the bolt 46 and the locking body 50 are both made of hardened steel and the shoulder 48 and the locking body 50 are ground. In this case, the angle between the magnetic axis B and the shoulder 48, in the region in which it touches the locking body 50, is advantageously approximately 4 to 6 °. Thus, a moderately strong impact of the bolt 64 on the bolt 46 is sufficient to pivot it backwards.
Der Stützkörper 40 stützt das Rückhalteglied 26 und zugleich das Niederhalteglied 30 über eine Federanordnung 70 ab, die oberhalb des Elektromagneten 60 innerhalb des Gehäuses 24 und teilweise innerhalb des Rückhalteglieds 26 untergebracht ist. Zur Federanordnung 70 gehört eine in Andrückrichtung A nach vorne weisende Schraube 72, die im Stützkörper 40 drehbar gelagert und durch einen Querstift 74 gehindert ist, sich gegenüber dem Stützkörper axial zu verschieben. Die Schraube 72 ist durch eine nicht dargestellte Aussparung im Gehäuse 24 für ein drehmomentübertragendes Werkzeug, bei¬ spielsweise einen gewöhnlichen Schraubendreher, zugänglich.The support body 40 supports the retaining member 26 and at the same time the holding-down member 30 via a spring arrangement 70, which is accommodated above the electromagnet 60 inside the housing 24 and partially inside the retaining member 26. The spring arrangement 70 includes a screw 72 pointing forward in the pressing direction A, which is rotatably mounted in the support body 40 and is prevented by a transverse pin 74 from axially displacing with respect to the support body. The screw 72 is accessible through a recess (not shown) in the housing 24 for a torque-transmitting tool, for example an ordinary screwdriver.
Auf die Schraube 72 ist von vorne her eine Mutter 76 aufge¬ schraubt, die im Stützkörper 40 längsverschiebbar geführt und gegen Drehen gesichert ist. An der Mutter 76 stützt sich das hintere Ende einer Feder 78 in Gestalt einer Schrauben¬ druckfeder ab, die mit ihrem vorderen Ende gegen eine teleskopartig im Stützkörper 40 längsverschiebbar geführte Hülse 80 drückt, so daß diese normalerweise an einer im Rückhalteglied 26 ausgebildeten Schulter 82 anliegt und somit die in Andrückrichtung A wirkende Kraft der Feder 78 zu einem mehr oder weniger großen Teil unmittelbar auf das Rückhalteglied 26 überträgt.A nut 76 is screwed onto the screw 72 from the front and is longitudinally displaceable in the support body 40 and secured against rotation. The rear end of a spring 78 is supported on the nut 76 in the form of a helical compression spring, which presses with its front end against a sleeve 80 which is telescopically guided longitudinally in the support body 40, so that it normally rests on a shoulder 82 formed in the retaining member 26 and thus transmits the force of the spring 78 acting in the pressing direction A directly to a greater or lesser extent to the retaining member 26.
In einem vorderen Endbereich der Hülse 80, der sich durch das Rückhalteglied 26 hindurch nach vorne erstreckt, ist eine Rolle 84 gelagert, die in die Hohlkehle 36 des Nieder-In a front end region of the sleeve 80, which extends through the retaining member 26 to the front, a roller 84 is mounted, which in the groove 36 of the lower
ERSATZBL 4l halteglieds 30 drückt. Wenn der Skistiefel 12 angeschnallt wird, drückt das hintere Sohlenteil 14 die Nase 34 nach oben, so daß das Niederhalteglied 30, wie ein Vergleich der Fig. 2 mit Fig. 1 zeigt, gegen die Kraft der Federanordnung 70 um einen kleinen Winkel entgegen dem Uhrzeigersinn, also nach hinten, geschwenkt wird.REPLACEMENT BL 4l holding member 30 presses. When the ski boot 12 is strapped on, the rear sole part 14 pushes the nose 34 upward, so that the hold-down member 30, as shown by a comparison of FIG. 2 with FIG. 1, counterclockwise against the force of the spring arrangement 70 by a small angle , i.e. to the rear, is pivoted.
Für eine anfängliche, vom Benutzer unabhängige Justierung der Federanordnung 70 enthält diese eine zentrale Zugstange 86, die mit dem vorderen Ende der Hülse 80 fest verschraubt ist und sich nach hinten durch einen Stopfen 88 hindurcher¬ streckt, der von vorne in die Schraube 72 eingeschraubt ist. Die auf diese Weise eingestellte Vorspannung der Feder 78 läßt sich entsprechend den Bedürfnissen des Benutzers verstärken, indem man die Schraube 72 so dreht, daß die Mutter 76 nach vorne wandert. Die auf diese Weise erzielte Kraft in Andrückrichtung A bleibt nur solange wirksam, wie der Riegel 46 in seiner Normalstellung bleibt und somit den Sperrkörper 50 in seiner Sperrstellung hält. Dies ist so lange der Fall, wie der Elektromagnet 60 stromlos bleibt.For an initial adjustment of the spring arrangement 70 which is independent of the user, it contains a central pull rod 86 which is firmly screwed to the front end of the sleeve 80 and which extends rearwards through a stopper 88 which is screwed into the screw 72 from the front . The preload of the spring 78 set in this way can be increased according to the needs of the user by turning the screw 72 so that the nut 76 moves forward. The force achieved in this way in the pressing direction A remains effective only as long as the bolt 46 remains in its normal position and thus holds the locking body 50 in its locking position. This is the case as long as the electromagnet 60 remains de-energized.
Wenn der Elektromagnet 60 erregt wird, bewegt sich der Anker 62 gegen den sehr geringen Widerstand seiner Feder 66 nach hinten, so daß der Bolzen 64 in einem erheblichen Abstand unterhalb der Schwenkachse 44 gegen den Riegel 46 schlägt und diesen gegen den geringen Widerstand der Reibung seiner Schulter 48 am Sperrkörper 50 sowie gegen den ebenfalls sehr geringen Widerstand der Rückstellfeder 56 nach hinten in die mit strichpunktierten Linien in Fig. 2 angedeutete Stellung schwenkt. Die Federanordnung 70 bewirkt nun, daß der mit seinem Zapfen 72 in den senkrechten Schlitzen 54 der Wangen 72 geführte Sperrkörper 50 nach hinten gedrängt wird und aus seiner Mulde 58 heraus nach oben und hinten rollt. Einen ersten, dieses Herausrollen untersützenden Impuls hat der Sperrkörper 50 schon durch die Reibung der Schulter 48 des nach hinten schwenkenden Riegels 46 erhalten. Der Sperrkörper 50 hat also vom Anfang eines Entriegelungvor¬ gangs an die Tendenz, sich im richtigen Sinn, gemäß Fig. 2 gegen den Uhrzeigersinn, zu drehen. Infolgedessen hat der Sperrkörper 50 nur vernachlässigbar geringe, im wesentlichen auf Rollreibung beruhende Reibungskräfte zu überwinden, um aus seiner Sperrεtellung in eine weiter hinten liegende Ausweichstellung zu gelangen, in der er den Stützkörper 40 nicht mehr daran hindern kann, aus seiner Ruhestellung in eine Rückzugsstellung zu gelangen.When the electromagnet 60 is energized, the armature 62 moves backwards against the very low resistance of its spring 66, so that the bolt 64 strikes the bolt 46 at a considerable distance below the pivot axis 44 and this against the low resistance of the friction of it Shoulder 48 on the locking body 50 and against the likewise very low resistance of the return spring 56 swings back into the position indicated by dash-dotted lines in FIG. 2. The spring arrangement 70 now causes the locking body 50, which is guided with its pin 72 in the vertical slots 54 of the cheeks 72, to be pushed rearward and to roll up and out of its recess 58. The blocking body 50 has already received a first impulse which supports this rolling out by the friction of the shoulder 48 of the bolt 46 which swivels backwards. From the beginning of an unlocking process, the locking body 50 therefore has a tendency to rotate in the correct sense, counterclockwise according to FIG. 2. As a result, the blocking body 50 has to overcome only negligibly small frictional forces, which are essentially based on rolling friction, in order to move from its blocking position to a further rearward evasive position in which it can no longer prevent the supporting body 40 from moving from its rest position to a retracted position reach.
Die Zapfen 52 des Sperrkörpers 50 verlassen dabei die senk¬ rechten Schlitze 54 in den beiden Wangen 72 des Stützkörpers 40 nicht. Infolgedessen bleiben Riegel 46 und Sperrkörper 50 bereit, in die Normalstellung des Riegels, die zugleich Sperrstellung des Sperrkörpers ist, zurückzukehren, sobald es der Rückstellfeder 56 gelingt, den Stützkörper 40 zurück nach vorne in seine Ruhestellung zu schieben.The pins 52 of the locking body 50 do not leave the vertical slots 54 in the two cheeks 72 of the support body 40. As a result, the bolt 46 and the locking body 50 remain ready to return to the normal position of the locking bolt, which is also the locking position of the locking body, as soon as the return spring 56 succeeds in pushing the support body 40 back forward into its rest position.
In der Rückzugsstellung des Stützkörpers 40 gibt sowohl das Rückhalteglied 26 wie das Niederhalteglied 30 das Sohlenteil 14 frei. Das Rückhaltegliedes 26 bleibt jedoch ständig durch eine zusätzliche Feder 90 belastet, die im Vergleich zur Feder 78 nur mäßig vorgespannt ist und in Andrückrichtung A gegen einen am Rückhalteglied 26 befestigten, sich ebenfalls in Andrückrichtung A erstreckenden Führungsbolzen 92 drückt. Dieser hat einen Längsschlitz 94, durch den sich ein am Gehäuse 24 befestigter senkrechter Stift 96 hindurcher¬ streckt, wodurch die Größe der möglichen Längsbewegung des Rückhaltegliedes 26 gegenüber dem Gehäuse 24 begrenzt ist. Die Feder 90 hält das Rückhalteglied 28 normalerweise in seiner durch den Längsschlitz 94 festgelegten vorderen Endstellung, auch wenn das Niederhalteglied 30 die Feder¬ anordnung 70 so belastet, daß die Hülse 80 sich von der Schulter 92 entfernt.In the retracted position of the support body 40, both the retaining member 26 and the holding-down member 30 release the sole part 14. The retaining member 26, however, remains constantly loaded by an additional spring 90, which is only moderately pretensioned in comparison to the spring 78 and presses in the pressing direction A against a guide pin 92 fastened to the retaining member 26 and also extending in the pressing direction A. This has a longitudinal slot 94 through which a vertical pin 96 attached to the housing 24 extends, whereby the size of the possible longitudinal movement of the retaining member 26 relative to the housing 24 is limited. The spring 90 normally holds the retaining member 28 in its front end position defined by the longitudinal slot 94, even if the holding-down member 30 loads the spring arrangement 70 so that the sleeve 80 moves away from the shoulder 92.
E 41E 41
In Fig. 1 und 2 ist ein Teil einer mit dem Rückhalteglied 26 verschraubten Standplatte 98 dargestellt, die weiter vorne eine nicht dargestellte erhabene Standfläche für die Sohle des Skistiefels 12 aufweist. Diese Standfläche nimmt an allen Bewegungen des Rückhalteglieds 26 nach vorne und nach hinten teil. In Fig. 1 bis 5 ist ferner eine Skibremse 100 angedeutet, die in der Lagerhülse 32 schwenkbar gelagert und dadurch in die elastische Sperrvorrichtung 20 integriert ist. Zum Auslösen der Sperrvorrichtung 20 werden die Bewe¬ gungen des Rückhaltegliedes 26 und des Niederhaltegliedes 30 getrennt abgetastet. Zu diesem Zweck stützt sich am Rückhal¬ teglied 26 und am Niederhalteglied 30 das vordere Ende je einer Stange 102 bzw. 104 ab, die im Gehäuse 24 längsver- εchiebbar geführt und durch eine Feder 106 bzw. 108 in Andrückrichtung A vorgespannt ist. Die Vorspannung der dem Niederhalteglied 30 zugeordneten Feder 108 ist ungefähr viermal so groß wie die Vorspannung der Feder 106. Auf jeder der Stangen 102 und 104 ist ein Nocken 110 bzw. 112 ange¬ ordnet, der normalerweise von einer schwachen Feder 114 bzw. 116 an einer Schulter 118 bzw. 120 der betreffenden Stange anliegend gehalten ist, so daß er gemeinεam mit dieεer nach hinten bewegbar iεt. Dem Nocken 110 auf der Stange 102 εind zwei von ihm mechanisch betätigbare, in einem Abstand hin¬ tereinander angeordnete, Schalter 122 und 124 zugeordnet, während dem Nocken 112 auf der Stange 104 nur ein ebenfalls mechanisch betätigbarer Schalter 126 zugeordnet ist.1 and 2, part of a base plate 98 screwed to the retaining member 26 is shown, which further forward has a raised base surface, not shown, for the sole of the ski boot 12. This footprint takes part in all movements of the retaining member 26 forward and backward. 1 to 5, a ski brake 100 is also indicated, which is pivotally mounted in the bearing sleeve 32 and is thus integrated into the elastic locking device 20. To trigger the locking device 20, the movements of the retaining member 26 and the holding-down member 30 are sensed separately. For this purpose, the front end is supported on the retaining member 26 and the holding-down member 30, each of a rod 102 or 104, which is guided in the housing 24 in a longitudinally displaceable manner and is biased in the pressing direction A by a spring 106 or 108. The preload of the spring 108 assigned to the hold-down member 30 is approximately four times the preload of the spring 106. On each of the rods 102 and 104 a cam 110 or 112 is arranged, which is normally provided by a weak spring 114 or 116 a shoulder 118 or 120 of the rod in question is held so that it can be moved backwards together with it. The cam 110 on the rod 102 is assigned two switches 122 and 124 which can be mechanically actuated by it and which are arranged at a distance from one another, while the cam 112 on the rod 104 is assigned only one likewise mechanically actuated switch 126.
Jedem der beiden Nocken 110 und 112 iεt ferner ein am Gehäuse 24 ausgebildeter Anschlag 128 bzw. 130 derart zugeordnet, daß der Nocken 110 nicht an dem Schalter 124, und der Nocken 112 nicht an dem Schalter 126 vorbeibewegbar ist. Wenn also das Rückhalteglied 26 so weit nach hinten verschoben werden sollte und/oder das Niederhalteglied 30 so weit nach hinten verschwenkt werden sollte, daß die zuge¬ hörige Stange 102 bzw. 104 sich mit ihrer Schulter 118 bzw. 1SEach of the two cams 110 and 112 is further assigned a stop 128 or 130 formed on the housing 24 such that the cam 110 cannot be moved past the switch 124 and the cam 112 cannot past the switch 126. Thus, if the retaining member 26 should be moved so far back and / or the holding-down member 30 should be pivoted so far back that the associated rod 102 or 104 should have its shoulder 118 or 1S
120 am Anschlag 128 bzw. 130 vorbeibewegt, dann bleibt der zugehörige Nocken 110 bzw. 112 dennoch vor dem betreffenden Schalter 124 und 126 stehen und sorgt dafür, daß dieser betätigt bleibt. Die Länge beider Stangen 102 und 104 ist einstellbar, sodaß die Schaltpunkte justierbar sind.120 past the stop 128 or 130, then the associated cam 110 or 112 still stops in front of the switch 124 and 126 concerned and ensures that it remains actuated. The length of both rods 102 and 104 is adjustable so that the switching points are adjustable.
Gemäß Fig. 7 ist jeder der Schalter 124 und 126 mit einem Zeitglied 132 bzw. 134, das einstellbar sein kann, in Reihe geschaltet, und beide Schalter 122 und 124 samt zugehörigen Zeitgliedern 132 und 134 liegen parallel zueinander im Stromkreis des Elektromagneten 60, der eine von mehreren Batterien gebildete Stromquelle 136 enthält. Dabei handelt es sich vorzugsweise um Lithium-S02-Batterien, die bei Nichtgebrauch sehr lange geladen bleiben und, um aktionsfä¬ hig zu sein, von Zeit zu Zeit einer Aktivierung durch einen Kurzschluß bedürfen. Diesem Zweck dient der Schalter 122, der vom zugehörigen Nocken 110 jeweils beim Anschnallen des Skis 10 überfahren wird. Der Nocken 110 bleibt dann norma¬ lerweise in einer Zwischenstellung zwischen den Schaltern 122 und 124 stehen, wie in Fig. 6 mit strichpunktierten Linien angedeutet. Bei kleinen Vorwärtsbewegungen des Rück¬ haltegliedes 26, die im Fahrbetrieb gelegentlich vorkommen, beispielεweiεe beim Durchfahren von Mulden, wird der Schal¬ ter 122 vom Nocken 110 immer wieder einmal erreicht, so daß die Batterien 136 während des Skilaufens aktiviert bleiben, auch wenn keinerlei Gefahrenzustand eintritt.7, each of the switches 124 and 126 is connected in series with a timer 132 and 134, which can be adjustable, and both switches 122 and 124 together with the associated timers 132 and 134 are parallel to one another in the circuit of the electromagnet 60, the includes a power source 136 formed by a plurality of batteries. These are preferably lithium SO 2 batteries which remain charged for a very long time when not in use and, in order to be able to act, require activation from time to time by a short circuit. Switch 122 serves this purpose and is run over by associated cam 110 each time the ski 10 is buckled up. The cam 110 then normally remains in an intermediate position between the switches 122 and 124, as indicated by dash-dotted lines in FIG. 6. In the event of small forward movements of the retaining member 26, which occasionally occur during driving, for example when driving through troughs, the switch 122 is repeatedly reached by the cam 110, so that the batteries 136 remain activated during skiing, even if there is no dangerous state whatsoever entry.
Bei Drehbeanspruchungen drängt der sich auf dem Ski 10 dre¬ hende Skistiefel 12 das Rückhalteglied 26 nach hinten, so daß der Nocken 110 den Schalter 124 betätigt. Sobald die durch das Zeitglied 132 feεtgelegte Zeitεpanne von bei¬ spielsweise 0,05 s verstrichen ist, wird der Elektromagnet 60 erregt. Entsprechendes geschieht, wenn bei einem Fron¬ talsturz der Nocken 112 den Schalter 126 betätigt hat undIn the event of rotational loads, the ski boot 12 rotating on the ski 10 pushes the retaining member 26 backward, so that the cam 110 actuates the switch 124. As soon as the time period set by the timer 132 of, for example, 0.05 s has elapsed, the electromagnet 60 is excited. The same happens when the cam 112 has actuated the switch 126 in the event of a frontal fall and
ERSATZBLATT 4L die durch daε Zeitglied 134 feεtgelegte Zeitspanne von beispielsweise 0,03 s verstrichen ist. In beiden Fällen schlägt der Bolzen 64 mit solcher Wucht gegen den Riegel 46, daß dieεer auε εeiner Normalεtellung nach hinten pendelt, der Sperrkörper 50 seine Auεweichεtellung erreicht und infolgedeεsen der Stützkörper 40 sich in seine Rückzug¬ stellung bewegt, so daß das Rückhalteglied 26 und daε Niederhalteglied 30 vom Druck der Federanordnung entlaεtet werden und den Skistiefel 12 freigeben. Sobald dies ge¬ schehen ist, kehren sämtliche beweglichen Bauteile unter den Einfluß der Federn 56, 66 und 90 in ihre Normalstellung zurück, so daß der Ski 10 ohne weiteres wieder angeschnallt werden kann. REPLACEMENT LEAF 4L the period of time set by the timer 134, for example 0.03 s, has elapsed. In both cases, the bolt 64 strikes the bolt 46 with such force that it swings backward out of its normal position, the locking body 50 reaches its evasive position and, as a result, the support body 40 moves into its retracted position, so that the retaining member 26 and there Hold-down member 30 are relieved of the pressure of the spring arrangement and release the ski boot 12. As soon as this has happened, all the movable components return to their normal position under the influence of the springs 56, 66 and 90, so that the ski 10 can be strapped on again without further ado.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Elastiεche Sperrvorrichtung, inεbes. Ferεenteil einer Skisicherheitsbindung, mit1. Elastic locking device, in particular. Part of a ski safety binding, with
- einem Gehäuse (24) , das an einem von zwei miteinander zu verriegelnden Gegenεtänden, inεbeε. einem Ski (10) , zu befestigen ist,- A housing (24), which is mounted on one of two objects to be locked together. a ski (10) is to be attached,
- einem Rückhalteglied (26) , das am Gehäuse (24) in einer Andrückrichtung (A) zu dem zweiten der miteinander zu ver¬ riegelnden Gegenεtände, inεbes. einem Skistiefel (12) , bewegbar geführt ist,- A retaining member (26), in particular on the housing (24) in a pressing direction (A) to the second of the objects to be locked together. a ski boot (12) is movably guided,
- einem Stützkörper (40), der in bezug auf das Gehäuse (24) aus einer Ruhestellung entgegen der Andrückrichtung (A) in eine Rückzugstellung bewegbar ist,a support body (40) which can be moved with respect to the housing (24) from a rest position against the pressing direction (A) into a retracted position,
- einer Federanordnung (70) , die sich am Stützkörper (40) abstützt und daε Rückhalteglied (26) in der Andrückrichtung (A) belastet,a spring arrangement (70) which is supported on the support body (40) and loads the retaining member (26) in the pressing direction (A),
- mindestenε einem Sperrkörper (50) , der normalerweiεe eine Sperrstellung einnimmt, in der er den Stützkörper (40) in seiner Ruhestellung hält, und der in eine Ausweichstellung bewegbar ist, in der er eine Bewegung des Stützkörpers (40) in seine Rückzugsεtellung zuläßt,at least one locking body (50) which normally assumes a locking position in which it holds the support body (40) in its rest position and which can be moved into an evasive position in which it allows the support body (40) to move into its retracted position,
- einem Riegel (46) , der den Sperrkörper (50) normalerweiεe in seiner Sperrstellung hält, und- A bolt (46) which normally holds the locking body (50) in its locking position, and
- einem Elektromagneten (60) mit einem Anker (62) , der in einem vorgegebenen Schaltzustand eines den Elektromagneten (60) enthaltenden Stromkreises längs einer Magnetachse (B) gegen den Riegel (46) bewegbar ist, um ihn unwirksam zu machen und dadurch eine Bewegung des Stützkörpers (40) in seine Rückzugstellung zu ermöglichen, dadurch g e k e n n z e i c h n e t , daß der Riegel (46) um eine quer zur Magnetachse (B) in einem Abstand von dieser 11 angeordnete Schwenkachse (44) schwenkbar gelagert ist und in einem Abstand von der Schwenkachse (44) eine Schulter (48) aufweist, die normalerweise gegen den Sperrkörper (50) drückt und mit der Magnetachse (B) einen im Bereich der Selbsthemmung liegenden Winkel einschließt.- An electromagnet (60) with an armature (62) which, in a predetermined switching state of a circuit containing the electromagnet (60), can be moved along a magnetic axis (B) against the bolt (46) in order to render it ineffective and thereby cause movement to allow the support body (40) to its retracted position, characterized in that the bolt (46) is at a distance from it transversely to the magnetic axis (B) 11 arranged pivot axis (44) is pivotally mounted and at a distance from the pivot axis (44) has a shoulder (48) which normally presses against the locking body (50) and forms an angle with the magnetic axis (B) in the area of self-locking .
2. Sperrvorrichtung nach Anspruch 1, dadurch g e k e n n z e i c h n e t , daß die Schwenk¬ achse2. Locking device according to claim 1, characterized g e k e n n z e i c h n e t that the Schwenk¬ axis
(44) derart oberhalb des Sperrkörperε (50) angeordnet ist, daß der Riegel (46) unter dem Einfluß seines Eigengewichts bestrebt ist, in seine Normalstellung zu pendeln, in der er den Sperrkörper (50) in seiner Sperrstellung hält.(44) is arranged above the locking body (50) in such a way that the bolt (46), under the influence of its own weight, strives to oscillate into its normal position, in which it holds the locking body (50) in its locking position.
3. Sperrvorrichtung nach Anspruch 1 oder 2, dadurch g e k e n n z e i c h n e t , daß der Riegel (46) unter elaεtischer -Vorspannung im Sinne einer Schwenkung in seine Normalstellung steht.3. Locking device according to claim 1 or 2, characterized in that the bolt (46) is under elastic pretension in the sense of pivoting into its normal position.
4. Sperrvorrichtung nach einem der Ansprüche 1 bis 3, dadurch g e k e n n z e i c h n e t , daß der Riegel (46) am Stützkörper (40) gelagert und nach Freigabe des Sperrkör¬ pers4. Locking device according to one of claims 1 to 3, characterized in that the bolt (46) is mounted on the support body (40) and after release of the locking body
(50) gemeinsam mit diesem und dem Stützkörper (40) entgegen der Andrückrichtung (A) bewegbar ist.(50) can be moved together with the latter and the support body (40) against the pressing direction (A).
5. Sperrvorrichtung nach einem der Ansprüche l bis 4, dadurch g e k e n n z e i c h n e t , daß der Elektromag¬ net5. Locking device according to one of claims 1 to 4, characterized in that the electromagnet
(60) zwischen dem Rückhalteglied (26) und dem Riegel (46) angeordnet ist, die Magnetachse (B) sich parallel zur Andruckrichtung (A) erstreckt, und der Anker (62) in dem vorgegebenen Schaltzustand entgegen der Andrückrichtung (A) bewegbar ist. 4ή(60) is arranged between the retaining member (26) and the bolt (46), the magnetic axis (B) extends parallel to the pressing direction (A), and the armature (62) can be moved in the predetermined switching state against the pressing direction (A) . 4ή
6. Elastische SperrVorrichtung, insbes. Fersenteil einer Skisicherheitsbindung, mit6. Elastic locking device, in particular the heel part of a ski safety binding, with
- einem Gehäuse (24) , das an einem von zwei miteinander zu verriegelnden Gegenständen, insbes. einem Ski (10) , zu befestigen ist,a housing (24) which is to be fastened to one of two objects to be locked together, in particular a ski (10),
- einem Rückhalteglied (26) , das am Gehäuse (24) in einer Andrückrichtung (A) zu dem zweiten der miteinander zu ver¬ riegelnden Gegenstände, insbes. einem Skistiefel (12) , bewegbar geführt ist,a retaining member (26) which is movably guided on the housing (24) in a pressing direction (A) to the second of the objects to be locked together, in particular a ski boot (12),
- einem Stützkörper (40) , der in bezug auf das Gehäuse (24) aus einer Ruhestellung entgegen der Andrückrichtung (A) in eine Rückzugstellung bewegbar ist,a support body (40) which can be moved with respect to the housing (24) from a rest position against the pressing direction (A) into a retracted position,
- einer Federanordnung (70) , die sich am Stützkörper (40) abstützt und daε Rückhalteglied (26) in der Andrückrichtung (A) belaεtet,a spring arrangement (70) which is supported on the support body (40) and loads the retaining member (26) in the pressing direction (A),
- mindeεtenε einem Sperrkörper (50) , der normalerweise eine Sperrstellung einnimmt, in der er den Stützkörper (40) in seiner Ruhestellung hält, und der in eine Ausweichstellung bewegbar ist, in der er eine Bewegung des Stützkörpers (40) in seine Rückzugsstellung zuläßt,at least one blocking body (50) which normally assumes a blocking position in which it holds the supporting body (40) in its rest position and which can be moved into an evasive position in which it permits movement of the supporting body (40) into its retracted position,
- einem Riegel (46) , der den Sperrkörper (50) normalerweise in seiner Sperrstellung hält, und- A bolt (46) which normally holds the locking body (50) in its locked position, and
- einem Elektromagneten (60) mit einem Anker (62) , der in einem vorgegebenen Schaltzustand eines den Elektromagneten (60) enthaltenden Stromkreises längs einer Magnetachse (B) gegen den Riegel (46) bewegbar ist, um ihn unwirksam zu machen und dadurch eine Bewegung des Stützkörpers (40) in seine Rückzugstellung zu ermöglichen, wobei- An electromagnet (60) with an armature (62) which, in a predetermined switching state of a circuit containing the electromagnet (60), can be moved along a magnetic axis (B) against the bolt (46) in order to render it ineffective and thereby cause movement of the support body (40) in its retracted position, wherein
- am Rückhalteglied (26) ein Niederhalteglied (30) für den zweiten der miteinander zu verriegelnden Gegenstände, insbe¬ sondere einen Skistiefel (12) zwischen einer Niederhalte¬ stellung und einer Freigabestellung bewegbar gelagert ist, unda hold-down member (30) for the second of the objects to be locked together, in particular a ski boot (12), is movably mounted on the retention member (26) between a hold-down position and a release position, and
- die Federanordnung (70) das Niederhalteglied (30) in Rich¬ tung zu seiner Niederhaltestellung vorspannt,the spring arrangement (70) prestresses the hold-down member (30) in the direction of its hold-down position,
ERS ? dadurch g e k e n n z e i c h n e t , daß das Rückhalte¬ glied (26) eine Anlagefläche (28) für den zweiten Gegen¬ stand, insbesondere einen Skistiefel (12) aufweist, und - dem Rückhalteglied (26) sowie dem Niederhalteglied (30) je ein Schalter (124, 126) im Stromkreis des Elektromagneten (60) zugeordnet ist.ERS ? characterized in that the retaining member (26) has a bearing surface (28) for the second object, in particular a ski boot (12), and - the retaining member (26) and the holding-down member (30) each have a switch (124, 126) in the circuit of the electromagnet (60).
7. Sperrvorrichtung nach Anspruch 6, dadurch g e k e n n z e i c h n e t , daß die beiden Schalter (124, 126) in dem Stromkreis parallelgeschaltet sind.7. Locking device according to claim 6, characterized in that the two switches (124, 126) are connected in parallel in the circuit.
8. Sperrvorrichtung nach Anspruch 7, dadurch g e k e n n z e i c h n e t , daß die beiden Schalter (124, 126) mit je einem Zeitglied (132, 134) in Reihe geschaltet sind.8. Locking device according to claim 7, characterized in that the two switches (124, 126) are each connected in series with a timing element (132, 134).
9. Sperrvorrichtung nach einem der Ansprüche 6 bis 8, dadurch g e k e n n z e i c h n e t , daß dem Rückhalte¬ glied (26) und dem Niederhalteglied (30) zum Betätigen des ihm zugeordneten Schalters (124, 126) je eine von zwei Stangen (102, 104) zugeordnet ist, die auf je einer Seite der Längεmittelebene (18) der Sperrvorrichtung (20) angeord¬ net sind.9. Locking device according to one of claims 6 to 8, characterized in that the Rückhalte¬ member (26) and the hold-down member (30) for actuating the switch (124, 126) assigned to each one of two rods (102, 104) assigned which are arranged on one side of the longitudinal center plane (18) of the locking device (20).
10. Sperrvorrichtung nach Anspruch 9, dadurch g e k e n n z e i c h n e t , daß auf mindestens einer der Stangen (102, 104) zum Betätigen des zugehörigen Schalters (124, 126) ein Nocken (110, 112) angeordnet ist, der durch eine Feder (114, 116) in Richtung auf eine an der Stange (102, 104) ausgebildete Schulter (118, 120) vorge¬ spannt und durch einen gehäusefeεten Anεchlag (128, 130) gehindert ist, über den zugehörigen Schalter (124, 126) hinaus verschoben zu werden. 10. Locking device according to claim 9, characterized in that on at least one of the rods (102, 104) for actuating the associated switch (124, 126) a cam (110, 112) is arranged, which by a spring (114, 116) biased towards a shoulder (118, 120) formed on the rod (102, 104) and prevented by a stop (128, 130) fixed to the housing from being displaced beyond the associated switch (124, 126).
EP92904150A 1991-03-27 1992-02-06 Electronic ski safety binding Expired - Lifetime EP0531466B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4110163 1991-03-27
DE4110163 1991-03-27
PCT/EP1992/000265 WO1992017252A1 (en) 1991-03-27 1992-02-06 Electronic ski safety binding

Publications (2)

Publication Number Publication Date
EP0531466A1 true EP0531466A1 (en) 1993-03-17
EP0531466B1 EP0531466B1 (en) 1995-04-26

Family

ID=6428375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92904150A Expired - Lifetime EP0531466B1 (en) 1991-03-27 1992-02-06 Electronic ski safety binding

Country Status (6)

Country Link
US (1) US5308102A (en)
EP (1) EP0531466B1 (en)
JP (1) JP3223976B2 (en)
AT (1) ATE121642T1 (en)
DE (1) DE59202020D1 (en)
WO (1) WO1992017252A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5743550A (en) * 1994-02-12 1998-04-28 Frohwein; Otto Electronically controlled safety binding for skis and snow board
US6659494B1 (en) 2000-08-10 2003-12-09 Ralph M. Martin Backwards release ski binding on a pivot plate mount
US6769711B1 (en) 2000-08-10 2004-08-03 Ralph M. Martin Gas powered backwards release ski binding
FR2896427B1 (en) * 2006-01-20 2010-09-24 Salomon Sa SECURITY FASTENING FOR SKI SHOE
FR2896426B1 (en) * 2006-01-20 2008-05-09 Salomon Sa SECURITY FIXING OF A SHOE ON A SKI
US9305120B2 (en) 2011-04-29 2016-04-05 Bryan Marc Failing Sports board configuration

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Publication number Priority date Publication date Assignee Title
FR2375880A1 (en) * 1976-12-30 1978-07-28 Salomon & Fils F LOCKING DEVICE WITH ELECTROMECHANICAL RELEASE
FR2418655A1 (en) * 1978-03-03 1979-09-28 Look Sa Locking mechanism for ski boot - has electromagnet connected to piezoelectric crystal under manually-operated lever
AT371014B (en) * 1981-03-10 1983-05-25 Tyrolia Freizeitgeraete SAFETY BINDING
FR2506171B1 (en) * 1981-05-22 1985-05-31 Look Sa LOCKING DEVICE FOR SKI BINDING
DE3132465A1 (en) * 1981-08-17 1983-09-22 Marker Patentverwertungsgesellschaft mbH, 6340 Baar SAFETY SKI BINDING
JP2640774B2 (en) * 1987-11-27 1997-08-13 インプリメンターズ オーバーシーズ リミテッド Self-releasing ski coupling unit
DE3808643C2 (en) * 1987-11-27 1994-04-28 Implementors Overseas Ltd Automatically releasable ski binding unit

Non-Patent Citations (1)

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Title
See references of WO9217252A1 *

Also Published As

Publication number Publication date
ATE121642T1 (en) 1995-05-15
WO1992017252A1 (en) 1992-10-15
JPH08501704A (en) 1996-02-27
JP3223976B2 (en) 2001-10-29
US5308102A (en) 1994-05-03
DE59202020D1 (en) 1995-06-01
EP0531466B1 (en) 1995-04-26

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