EP0016795B1 - Method for releasing a ski binding - Google Patents
Method for releasing a ski binding Download PDFInfo
- Publication number
- EP0016795B1 EP0016795B1 EP19790900821 EP79900821A EP0016795B1 EP 0016795 B1 EP0016795 B1 EP 0016795B1 EP 19790900821 EP19790900821 EP 19790900821 EP 79900821 A EP79900821 A EP 79900821A EP 0016795 B1 EP0016795 B1 EP 0016795B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ski
- force
- integral
- time
- leg
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000003068 static effect Effects 0.000 claims description 8
- 230000010354 integration Effects 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 2
- 238000011084 recovery Methods 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 230000006833 reintegration Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
- A63C9/0802—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings other than mechanically controlled, e.g. electric, electronic, hydraulic, pneumatic, magnetic, pyrotechnic devices; Remote control
Definitions
- the invention relates to a method for the involuntary release of a ski boot held on a ski from the ski in the event of danger, in which the forces acting on the leg of the skier are measured continuously over time and in which the connection between the ski and the ski boot is released when that occurs the time integral formed from the measured forces, which represents a measure of the stress on the leg, reaches a trigger value which is above the static holding force of the ski binding.
- the trigger value specified by the product of KraftxZeit is continuously compared with the time integral of at least one force acting on the leg, the time integral being continuously reduced to zero in accordance with a set time constant of the integration element becomes.
- the safety ski binding is triggered when high forces act on the skier's leg for a short time or lower, but still dangerous, forces in the long term.
- the value of each time integral formed is deleted when it falls below a certain minimum value of the stress. After each deletion of the integral, there is a reintegration when stress occurs, until the trigger value is reached or the stress has dropped below its certain minimum value.
- the object of the invention is therefore to provide a method of the initially indicated type in which the power pulses on the skier's leg a g ewirk previously be taken into account when releasing the ski boot from the ski.
- this object is achieved in that after force pulses which have not led to the triggering, the integral value is formed under the static triggering force and subtracted from the integral value above the static triggering force.
- the integral value is reset in each case by subtracting the integral formed below the static triggering force. The leg is thus given a certain recovery time after a load. If new stresses occur during this recovery time, the trigger value is reached more quickly because the integral value that has not yet been completely reset is reintegrated.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Air Bags (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur im Gefahrenfall unwillkürlichen Freigabe eines auf einem Ski gehaltenen Skischuhs vom Ski, bei dem die auf das Bein des Skiläufers einwirkenden Kräfte kontinuierlich über die Zeit gemessen werden und bei dem die Verbindung zwischen Ski und Skischuh gelöst wird, wenn das aus den gemessenen Kräften gebildete Zeitintegral, das ein Maß für die Beanspruchung des Beins darstellt, einen oberhalb der statischen Haltekraft der Skibindung liegenden Auslösewert erreicht.The invention relates to a method for the involuntary release of a ski boot held on a ski from the ski in the event of danger, in which the forces acting on the leg of the skier are measured continuously over time and in which the connection between the ski and the ski boot is released when that occurs the time integral formed from the measured forces, which represents a measure of the stress on the leg, reaches a trigger value which is above the static holding force of the ski binding.
Bei einem aus der DE-A-22 44 949 bekannten Verfahren dieser Art wird der durch das Produkt aus KraftxZeit vorgegebene Auslösewert kontinuierlich mit dem Zeitintegral mindestens einer auf das Bein wirkenden Kraft verglichen, wobei das Zeitintegral entsprechend einer eingestellten Zeitkonstante des Integrationsgliedes ständig gegen Null zurückgeführt wird. Nach dem bekannten Verfahren löst die Sicherheits-Skibindung also aus, wenn hohe Kräfte kurzzeitig oder geringere, aber noch gefährliche Kräfte langfristiger auf das Bein des Skiläufers einwirken.In a method of this type known from DE-A-22 44 949, the trigger value specified by the product of KraftxZeit is continuously compared with the time integral of at least one force acting on the leg, the time integral being continuously reduced to zero in accordance with a set time constant of the integration element becomes. According to the known method, the safety ski binding is triggered when high forces act on the skier's leg for a short time or lower, but still dangerous, forces in the long term.
Bei einem aus der DE-A-24 16 424 bekannten Verfahren der eingangs angegebenen Art wird der Wert jedes gebildeten Zeitintegrals gelöscht, wenn dieser unter einen bestimmten Minimalwert der Beanspruchung absinkt. Nach jeder Löschung des Integrals erfolgt beim Auftreten von Beanspruchungen eine erneute Integration bis der Auslösewert erreicht oder die Beanspruchung unter ihren bestimmten Minimalwert abgesunken ist.In a method of the type specified at the outset in DE-A-24 16 424, the value of each time integral formed is deleted when it falls below a certain minimum value of the stress. After each deletion of the integral, there is a reintegration when stress occurs, until the trigger value is reached or the stress has dropped below its certain minimum value.
Die bekannten Verfahren berücksichtigen nicht, daß ein kurzzeitig vorher von Kraftimpulsen beanspruchter Knochen aufgrund seiner physiologischen Eigenschaften auch dann eher zum Brechen neigt, wenn unmittelbar vor neuen Beanspruchungen eine unter der statischen Auslösekraft liegende Kraft auf das Bein eingewirkt hat.The known methods do not take into account that, due to its physiological properties, a bone that was briefly previously stressed by force impulses tends to break even if a force below the static triggering force acted on the leg immediately before new stresses.
Aufgabe der Erfindung ist es daher, ein Verfahren der eingangs angegebenen Art zu schaffen, bei dem die Kraftimpulse, die zuvor auf das Bein des Skiläufers eingewirk haben, bei der Freigabe des Skischuhs vom Ski berücksichtigt werden.The object of the invention is therefore to provide a method of the initially indicated type in which the power pulses on the skier's leg a g ewirk previously be taken into account when releasing the ski boot from the ski.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß nach Kraftimpulsen, die nicht zur Auslösung geführt haben, der Integralwert unter der statischen Auslösekraft gebildet und von dem Integralwert oberhalb der statischen Auslösekraft abgezogen wird. Bei dem erfindungsgemäßen Verfahren wird also der Integralwert jeweils durch Subtraktion des unterhalb der statischen Auslösekraft gebildeten Integrals zurückgesetzt. Dem Bein wird somit nach einer Beanspruchung eine bestimmte Erholungszeit vorgegeben. Beim Auftreten neuer Beanspruchungen während dieser Erholungszeit wird der Auslösewert schneller erreicht, weil auf den noch nicht vollständig zurückgesetzten Integralwert neu aufintegriert wird.According to the invention, this object is achieved in that after force pulses which have not led to the triggering, the integral value is formed under the static triggering force and subtracted from the integral value above the static triggering force. In the method according to the invention, the integral value is reset in each case by subtracting the integral formed below the static triggering force. The leg is thus given a certain recovery time after a load. If new stresses occur during this recovery time, the trigger value is reached more quickly because the integral value that has not yet been completely reset is reintegrated.
Claims (1)
- A method of automatically releasing in an emergency a skiing boot held on a ski from the ski, wherein the forces acting on the skier's leg are continuously measured with time and the connection between the ski and the skiing boot is released when the time integral of the measured forces, which is a measure of the stress of the leg, reaches a release value which exceeds the static retaining force of the ski binding, characterized in that after force pulses which have not resulted in a release the integral which is lower than the static release force is formed and is subtracted from the integral which exceeds the static release force.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2831769 | 1978-07-19 | ||
| DE19782831769 DE2831769A1 (en) | 1978-07-19 | 1978-07-19 | METHOD FOR RELEASING A SKI SHOE FROM SKI |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0016795A1 EP0016795A1 (en) | 1980-10-15 |
| EP0016795B1 true EP0016795B1 (en) | 1983-10-26 |
Family
ID=6044815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19790900821 Expired EP0016795B1 (en) | 1978-07-19 | 1980-02-25 | Method for releasing a ski binding |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4458157A (en) |
| EP (1) | EP0016795B1 (en) |
| JP (1) | JPS55500423A (en) |
| DE (1) | DE2831769A1 (en) |
| WO (1) | WO1980000219A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0039003B1 (en) * | 1980-04-24 | 1984-11-07 | MARKER Patentverwertungsgesellschaft mbH | Electronic safety ski binding which automatically adjusts itself to the correct release value |
| DE3408129A1 (en) * | 1984-03-06 | 1985-09-12 | Marker Patentverwertungsgesellschaft mbH, Baar | ELECTRONIC SKI BINDING AND METHOD FOR THEIR OPERATION |
| FR2892314B1 (en) * | 2005-10-20 | 2010-10-15 | Salomon Sa | SECURITY FASTENING |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2244949C2 (en) * | 1972-09-13 | 1982-07-01 | Hannes 8100 Garmisch-Partenkirchen Marker | Safety ski binding with an electronic circuit |
| FR2225185B1 (en) * | 1973-04-10 | 1979-03-02 | Lautier Dominique | |
| FR2351678A1 (en) * | 1976-05-18 | 1977-12-16 | Salomon & Fils F | SAFETY FIXING WITH ELECTRIC RELEASE FOR SKI |
-
1978
- 1978-07-19 DE DE19782831769 patent/DE2831769A1/en not_active Ceased
-
1979
- 1979-07-19 JP JP50112879A patent/JPS55500423A/ja active Pending
- 1979-07-19 WO PCT/DE1979/000073 patent/WO1980000219A1/en not_active Ceased
-
1980
- 1980-02-25 EP EP19790900821 patent/EP0016795B1/en not_active Expired
-
1981
- 1981-12-17 US US06/331,754 patent/US4458157A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US4458157A (en) | 1984-07-03 |
| JPS55500423A (en) | 1980-07-17 |
| WO1980000219A1 (en) | 1980-02-21 |
| DE2831769A1 (en) | 1980-02-07 |
| EP0016795A1 (en) | 1980-10-15 |
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| Publication | Publication Date | Title |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| 17P | Request for examination filed | ||
| AK | Designated contracting states |
Designated state(s): FR |
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| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
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| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: MARKER PATENTVERWERTUNGSGESELLSCHAFT MBH |
|
| AK | Designated contracting states |
Designated state(s): FR |
|
| ET | Fr: translation filed | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
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| 26N | No opposition filed | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19850329 |
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| REG | Reference to a national code |
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