US20080136157A1 - Method for controlling the connection between a gliding/rolling apparatus and user and a device for implementing the method - Google Patents
Method for controlling the connection between a gliding/rolling apparatus and user and a device for implementing the method Download PDFInfo
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- US20080136157A1 US20080136157A1 US11/953,432 US95343207A US2008136157A1 US 20080136157 A1 US20080136157 A1 US 20080136157A1 US 95343207 A US95343207 A US 95343207A US 2008136157 A1 US2008136157 A1 US 2008136157A1
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- Prior art keywords
- angle
- angles
- measuring
- ari
- rotation angle
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Classifications
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- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
- A61B5/1071—Measuring physical dimensions, e.g. size of the entire body or parts thereof measuring angles, e.g. using goniometers
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- 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
- A63C9/0885—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with electronically controlled locking devices remotely operated, e.g. by the skier
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/03—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring release force of ski safety bindings
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C2201/00—Use of skates, skis, roller-skates, snowboards and courts
- A63C2201/06—Telemark
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
- A63C2203/18—Measuring a physical parameter, e.g. speed, distance
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
- A63C2203/24—Processing or storing data, e.g. with electronic chip
Definitions
- the invention relates to a method for controlling the connection between a user and his/her gliding or rolling apparatus.
- the invention also relates to a device for controlling the implementation of the method.
- a substantial number of models of retaining elements are commercially available. These elements are essentially mechanical, that is, the boot is released after the boot retaining jaw is opened. The jaw is returned by means of a spring, and the opening of the jaw occurs when the forces that the boot exerts on the jaw override the return force applied by the spring.
- a method and a device of the invention provide for critical situations of a user to be determined more precisely, as well as for the achievement of various objects and advantages, the descriptions of which follow.
- the invention is directed to a method for controlling a connection between a user and his/her gliding or rolling board to which he/she is bound by a releasable type of retaining system provided with a two-state retaining member, a retention state and a release state, whereby, in the retention state of the retaining member, the measurement of at least two distinct flexion or torsion angles is taken between the skier's thigh and leg, and whereby the value of each of such angles is compared to posture indicative values, and whereby the switch of the retention state to the release state of the member is controlled if, for each of the two angles, the angle value measured is greater than its posture indicative value.
- the angle corresponding to the knee bend (AFX) and at least one of the angles among the angles corresponding to the valgus angulation (AVG), the varus angulation (AVR), the internal rotation (ARI), and the external rotation (ARE) are measured
- the control device includes a member for measuring at least two distinct flexion or torsion angles between the user's thigh and leg.
- the measuring member measures the angle corresponding to the knee bend (AFX) and at least one of the angles among the corresponding to the valgus angulation (AVG), the varus angulation (AVR), the internal rotation (ARI), and the external rotation (ARE).
- AFX angle corresponding to the knee bend
- AVG valgus angulation
- AVR varus angulation
- ARI internal rotation
- ARE external rotation
- various critical postures in which the skier runs a significant risk of injury in the area of the skier's knees, particularly in the area of different ligaments are observed and identified.
- These postures can be identified by taking at least two angle measurements in the area of each of the skier's lower limbs.
- control method and device according to the invention can be implemented on any type of releasable retaining system.
- a releasable retaining system that is known and broadly distributed on the market with the control device of the invention.
- the front stop and the rear heel piece of a boot retaining system are releasable as a function of the forces to which the user's leg is subjected while an additional release will occur in accordance with the invention as a function of the user's posture.
- FIG. 1 shows a skier
- FIG. 2 schematically shows a flexing position of the skier
- FIGS. 3 and 4 schematically show so-called valgus/varus positions
- FIGS. 5 and 6 schematically show situations in external/internal rotation
- FIG. 7 shows a flow chart representing the determination mode of the release control
- FIG. 8 shows a diagram of the principle of the control device.
- FIG. 1 shows a skier 1 gliding on a gliding apparatus in the form of two skis 2 and 3 .
- a connection system connects the skier to his gliding apparatus, the connection system including retaining elements, or bindings, namely, toe piece 4 a and heel piece 4 b which retain the left boot 6 on the ski 2 , and toe piece 5 a and heel piece (hidden by the left boot) which retain the right boot 7 on the ski 3 .
- the retaining elements are of the releasable type, which means that they can release the boot in the case of an application of force exceeding certain threshold levels.
- these elements are constructed in accordance with the patent documents FR 843 037 FR 2 860 729, and U.S. Pat. No.
- the retaining elements have two main states, a retaining state by which they retain the boots on their respective skis, and a release state by which they allow the boot to be released. In the case where the retaining system includes front and rear elements, only one of these elements needs to have a control for switching to the release state. In other types of known constructions, the boot is retained by a central retaining element.
- a control device is provided to control the connection between the user/skier and each of his/her skis.
- this device controls the change of state of the connection between the boot and the ski to its release state.
- the control device receives the forces sustained by the skier, analyzes them, and transmits a release command to the connection system if the analysis of the forces identifies a critical situation necessitating the release of the connection between the skier and his/her apparatus, that is, at least one of the skis in the present case, i.e., in the case of the gliding apparatus comprising a pair of skis rather than a single gliding board or other apparatus.
- the control method and device of the invention focus upon the forces sustained by the skier's knees and upon the consideration by which at least two angles are measured in the area of the knees for the purpose of detecting certain movements or postures of the skier that are susceptible to causing injury to the knees.
- the movements that are monitored include the flexional movements of the upper leg on the lower leg, that is, a knee-bend angle; varus/valgus movements, that is, an inward or outward deviation of the upper leg with respect to the lower leg; and a rotational movement toward the outside or inside of the lower leg relative to the upper leg.
- flexional movements of the upper leg on the lower leg that is, a knee-bend angle
- varus/valgus movements that is, an inward or outward deviation of the upper leg with respect to the lower leg
- a rotational movement toward the outside or inside of the lower leg relative to the upper leg In the following description, reference will be made to the femur and tibia, with respect to the upper leg (or thigh) and the lower leg, respectively.
- the angles measured include the flexion angle (AFX), represented in FIG. 2 between the axes 10 and 11 of the femur 12 and the tibia 13 ; the valgus/varus (AVR, AVG) angle, represented in FIGS. 3 and 4 ; and the medial/lateral (ARI, ARE) rotation angle, represented in FIGS. 5 and 6 .
- AFX flexion angle
- AVR valgus/varus
- ARI medial/lateral
- the skier can be provided with knee pads 25 , 26 .
- the knee pads are worn directly by the skier or they are incorporated to the skier's clothing.
- the knee pads are instrumentalized, i.e., equipped, for example, with conductive fibers that are integrated into the material of the knee pad at various locations and according to various orientations, and which work as extensometry gauges.
- Another possibility is to provide the knee pad with an inertial unit that has goniometers and/or inclinometers.
- Other measuring means are also suitable, such as potentiometers, for example.
- the flowchart diagram of FIG. 7 represents an algorithm on the basis of which a command to switch to the release state of a binding is generated.
- the command to switch to the release state is designated by the reference character “C” and is located in the last box of the chart.
- the algorithm includes a the real-time measurement of the angles AFX, AVR, AVG, ARI, ARE, which measurement is transmitted from the box 28 , the measurement being designated by the reference character “M”.
- the algorithm includes two decision-making levels 29 and 31 .
- the angles ARI, AFX, and AVG are measured, and the measured values are compared with indicative values, namely 15 degrees for ARI, 90 degrees for AFX, 5 degrees for AVG. This is shown in the three diamonds 32 , 33 , 34 of the chart.
- the measurement of AFX and AVR is then considered, more particularly, a consideration is them made whether AFX is less than the indicative 20-degree value or whether AVR is greater than the 5-degree indicative value as determined in the diamonds 37 and 38 . If one of these conditions is fulfilled, a command to switch to the release state is transmitted to the retaining system in order to release the connection between the user and his gliding apparatus.
- the value of the angle ARI is considered, which is shown schematically in the diamond 39 . If ARI is greater than the 15-degree indicative value, a release command is transmitted to the retaining system.
- AVG has exceeded its indicative value
- the value of the angle ARE is considered, as shown in the diamond 41 . If ARE is greater than the 15-degree indicative value, a release command is transmitted to the retaining system.
- a release command is triggered in each case scenario, from the measurement of two angles among the angles which include the flexion angle, the valgus/varus angle, the internal/external (i.e., medial/lateral) rotation angle, and the comparison of these angles to posture-indicative values which are associated to them, respectively.
- the angle measured can be the real angle, that is, measured between the directions defined by the femur axis and the tibia axis, or it can be a measurement of the variation of this angle from an initial value. Indeed, for the valgus/varus and the medial/lateral rotation, it is known that the deviation or rotation angle at rest can vary by several degrees inwardly or outwardly, from one user to the next. In such a case, one can, in an initialization phase, measure these angles, or part of these angles, at rest so that only the variation of the angles involved is measured subsequently.
- the angle measurements can be processed in any appropriate format, whether analog or digital. To this end, the measurement can be carried out continuously or sequentially.
- Each association of indicative angles identifies a critical posture of the skier in which an injury in the area of the knee is at risk.
- the values of the indicative angles are not to be considered limiting.
- the values can considered, within the scope of the invention, to be within a margin of more or less 30 percent. These values may not be exactly the same for all users or categories of users.
- the indicative values can be more or less high for experienced skiers or beginners.
- the algorithm of FIG. 7 includes a consideration of four critical postures. This number is non-limiting; there could be more or less, the general idea being that there needs to be at least two angle measurements between the upper leg and lower leg in order to identify a critical posture.
- a third level could also be added, above the level 31 , that is, adding the measure of a third angle and its comparison with an associated indicative angle to analyze the posture of the skier and identify the critical character of the skier's posture.
- the invention is to prevent only certain risks of injury, meaning that it is possible to control the release command by associating the measurement and the analysis of other angles or forces, for example, of the angles or forces in the area of the ankle and/or of the user's boot.
- FIG. 8 shows a schematic representation of the principle of the control device. It shows a measuring member in the form of a knee pad 42 . This member is able to measure at least two flexion or rotation angles of the lower limb of the skier among the angles, which include the flexion angle, the valgus/varus angle, the medial/lateral rotation angle. Other constructions are suitable for this measuring member.
- the signal originating from the measuring member is transmitted to a circuit 44 for processing the signal.
- the device further includes a table 46 with the posture-indicative values associated with each of the measured angles.
- a processing circuit 47 analyzes the angles measured and compares them to the indicative values in accordance to what has been described above.
- the processing circuit 47 controls a command circuit 48 , which is able to transmit a command for switching the release state to the retaining system.
- the circuit 48 controls the opening of a front retaining element 49 in accordance to the patent documents FR 2 843 037 and U.S. Pat. No. 7,073,812, mentioned above.
- Other constructions of retaining systems are also suitable.
- the transmission between the various components of the device is carried out by wire or wireless, as appropriate.
- the signals can be analog or digital.
- the invention is not limited to the field of skiing but can be applied to any gliding or rolling activity whereby the user is retained on his/her apparatus by at least one releasable retaining mechanism/binding, such as the activities of snowboarding, telemark skiing, cross-country skiing, and other types of activities and sports.
- the indicative values can be different from those that have been described herein.
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Abstract
Description
- This application claims priority under 35 U.S.C. §119 of French Patent Application No. 06 10784, filed on Dec. 11, 2006, the disclosure of which is hereby incorporated by reference thereto in its entirety.
- 1. Field of the Invention
- The invention relates to a method for controlling the connection between a user and his/her gliding or rolling apparatus. The invention also relates to a device for controlling the implementation of the method.
- 2. Description of Background and Other Information
- Particularly in the field of skis, it is known to retain each of the skier's boots on the skis by means of retaining elements, i.e., bindings. These elements are conventionally of the releasable type, that is, they are able to release the boot in case of excessive force to prevent, as much as possible, injury or fracture of a limb of the skier.
- A substantial number of models of retaining elements are commercially available. These elements are essentially mechanical, that is, the boot is released after the boot retaining jaw is opened. The jaw is returned by means of a spring, and the opening of the jaw occurs when the forces that the boot exerts on the jaw override the return force applied by the spring.
- These devices yield good results for simple falls, namely, mostly front and torsion falls. For so-called combined falls, for example a front torsion fall or a twisted fall, the friction between the boot and the retaining elements is difficult to control. However, there are compensating devices for the combined falls, such as described, for example, in the
patent documents FR 2 523 857 and family member U.S. Pat. No. 4,538,828,FR 2 314 742 and family member U.S. Pat. No. 4,095,821; andFR 2 707 514. - There are also constructions by which the forces between the boot and the ski are received by electronic gauges and are processed by electronic circuitry, which controls the release of the boot. Such constructions are disclosed, for example, in the
patent documents FR 2 459 669 and family member U.S. Pat. No. 4,395,759,FR 2 351 678 and family member U.S. Pat. No. 4,160,555; and U.S. Pat. No. 4,371,188. The electronic reception of the forces is more precise and less sensitive to friction than mechanical reception. However, it is not entirely satisfactory. Indeed, the reception of the forces in the area of the boot does not enable certain postures of the skier, any of which risks an injury to the skier, to be highlighted or identified. Moreover, commercially available boots are increasingly high-performance boots. They provide better protection for the lower portion of the leg, particularly protection against injuries, caused by a fall, which extend along the leg and which affect more particularly the knee, especially the ligaments of the knee. - Certain constructions have been proposed which receive the forces along the leg, as in the patent documents U.S. Pat. No. 3,909,028 and
FR 2 767 266, for example. The solutions described in these two documents are mostly mechanical and, therefore, they are very limiting for the skier. - The patent U.S. Pat. No. 6,007,086 proposes arranging directional transmitter systems and receivers on the skis and on the user, and to control the release of the boot when a receiver transmitter transmits its signal in a direction outside the receiving area of the receiver. Such a device does not allow for the forces exerted on the skier's lower limbs to be received with sufficient precision.
- Another solution, described in the patent U.S. Pat. No. 5,295,704, provides for the skier to be equipped with a type of knee pad and for the flexion angle of the lower limb to be measured on this element. However, such measurement alone is insufficient to identify the situations by which the skier risks an injury.
- In view of the state of the art, there is a need for a method for controlling the connection between a user and his/her gliding or rolling apparatus, such as a board, a snowboard, or skis, that enables the critical situations in which the skier runs a risk of an injury to be determined more precisely.
- A method and a device of the invention provide for critical situations of a user to be determined more precisely, as well as for the achievement of various objects and advantages, the descriptions of which follow.
- The invention is directed to a method for controlling a connection between a user and his/her gliding or rolling board to which he/she is bound by a releasable type of retaining system provided with a two-state retaining member, a retention state and a release state, whereby, in the retention state of the retaining member, the measurement of at least two distinct flexion or torsion angles is taken between the skier's thigh and leg, and whereby the value of each of such angles is compared to posture indicative values, and whereby the switch of the retention state to the release state of the member is controlled if, for each of the two angles, the angle value measured is greater than its posture indicative value.
- In a particular aspect of the invention, in a control method of the invention, the angle corresponding to the knee bend (AFX) and at least one of the angles among the angles corresponding to the valgus angulation (AVG), the varus angulation (AVR), the internal rotation (ARI), and the external rotation (ARE) are measured
- The control device includes a member for measuring at least two distinct flexion or torsion angles between the user's thigh and leg.
- In a particular aspect of the invention, in a control device according to the invention, the measuring member measures the angle corresponding to the knee bend (AFX) and at least one of the angles among the corresponding to the valgus angulation (AVG), the varus angulation (AVR), the internal rotation (ARI), and the external rotation (ARE).
- According to a particular aspect of the invention, various critical postures in which the skier runs a significant risk of injury in the area of the skier's knees, particularly in the area of different ligaments, are observed and identified. These postures can be identified by taking at least two angle measurements in the area of each of the skier's lower limbs.
- The control method and device according to the invention can be implemented on any type of releasable retaining system. For example, it is possible to complete a releasable retaining system that is known and broadly distributed on the market with the control device of the invention. In such case, the front stop and the rear heel piece of a boot retaining system are releasable as a function of the forces to which the user's leg is subjected while an additional release will occur in accordance with the invention as a function of the user's posture.
- The invention will be better understood from the following description, with reference to the annexed drawings.
-
FIG. 1 shows a skier; -
FIG. 2 schematically shows a flexing position of the skier; -
FIGS. 3 and 4 schematically show so-called valgus/varus positions; -
FIGS. 5 and 6 schematically show situations in external/internal rotation; -
FIG. 7 shows a flow chart representing the determination mode of the release control; -
FIG. 8 shows a diagram of the principle of the control device. -
FIG. 1 shows a skier 1 gliding on a gliding apparatus in the form of twoskis toe piece 4 a andheel piece 4 b which retain theleft boot 6 on theski 2, andtoe piece 5 a and heel piece (hidden by the left boot) which retain theright boot 7 on theski 3. The retaining elements are of the releasable type, which means that they can release the boot in the case of an application of force exceeding certain threshold levels. For example, these elements are constructed in accordance with the patent documents FR 843 037FR 2 860 729, and U.S. Pat. No. 7,073,812, the disclosure of the latter of which is hereby incorporated by reference thereto in its entirety. However, the constructions disclosed in these documents are not to be considered limiting to the present invention, and any other construction can be suitable. In a known manner, the retaining elements have two main states, a retaining state by which they retain the boots on their respective skis, and a release state by which they allow the boot to be released. In the case where the retaining system includes front and rear elements, only one of these elements needs to have a control for switching to the release state. In other types of known constructions, the boot is retained by a central retaining element. - A control device is provided to control the connection between the user/skier and each of his/her skis. In particular, this device controls the change of state of the connection between the boot and the ski to its release state.
- In the release state of the retaining system, the control device receives the forces sustained by the skier, analyzes them, and transmits a release command to the connection system if the analysis of the forces identifies a critical situation necessitating the release of the connection between the skier and his/her apparatus, that is, at least one of the skis in the present case, i.e., in the case of the gliding apparatus comprising a pair of skis rather than a single gliding board or other apparatus.
- The control method and device of the invention focus upon the forces sustained by the skier's knees and upon the consideration by which at least two angles are measured in the area of the knees for the purpose of detecting certain movements or postures of the skier that are susceptible to causing injury to the knees.
- The movements that are monitored include the flexional movements of the upper leg on the lower leg, that is, a knee-bend angle; varus/valgus movements, that is, an inward or outward deviation of the upper leg with respect to the lower leg; and a rotational movement toward the outside or inside of the lower leg relative to the upper leg. In the following description, reference will be made to the femur and tibia, with respect to the upper leg (or thigh) and the lower leg, respectively.
- These movements are observed by measuring angles in the area of each of the knees. The angles measured include the flexion angle (AFX), represented in
FIG. 2 between theaxes femur 12 and thetibia 13; the valgus/varus (AVR, AVG) angle, represented inFIGS. 3 and 4 ; and the medial/lateral (ARI, ARE) rotation angle, represented inFIGS. 5 and 6 . - These angles are measured with any appropriate means. For example, as suggested in
FIG. 1 , the skier can be provided withknee pads - The flowchart diagram of
FIG. 7 represents an algorithm on the basis of which a command to switch to the release state of a binding is generated. In the diagram, the command to switch to the release state is designated by the reference character “C” and is located in the last box of the chart. - At each step of the chart, when the answer to the question asked in the decision box (diamond) is “YES”, a “1” appears on the arrow connecting the diamond to a subsequent diamond; a “0” appears if the answer is “NO”.
- In the embodiment illustrated in
FIG. 7 , the algorithm includes a the real-time measurement of the angles AFX, AVR, AVG, ARI, ARE, which measurement is transmitted from thebox 28, the measurement being designated by the reference character “M”. - The algorithm includes two decision-
making levels first level 29, the angles ARI, AFX, and AVG are measured, and the measured values are compared with indicative values, namely 15 degrees for ARI, 90 degrees for AFX, 5 degrees for AVG. This is shown in the threediamonds - If one of the three angles is greater than the associated indicative value, one then moves to the
second analysis level 31. - If it is the ARI value that is greater than its indicative value, the measurement of AFX and AVR is then considered, more particularly, a consideration is them made whether AFX is less than the indicative 20-degree value or whether AVR is greater than the 5-degree indicative value as determined in the
diamonds - In the case where the indicative value of AFX has been exceeded, the value of the angle ARI is considered, which is shown schematically in the
diamond 39. If ARI is greater than the 15-degree indicative value, a release command is transmitted to the retaining system. - If AVG has exceeded its indicative value, the value of the angle ARE is considered, as shown in the
diamond 41. If ARE is greater than the 15-degree indicative value, a release command is transmitted to the retaining system. - Thus, a release command is triggered in each case scenario, from the measurement of two angles among the angles which include the flexion angle, the valgus/varus angle, the internal/external (i.e., medial/lateral) rotation angle, and the comparison of these angles to posture-indicative values which are associated to them, respectively.
- The angle measured can be the real angle, that is, measured between the directions defined by the femur axis and the tibia axis, or it can be a measurement of the variation of this angle from an initial value. Indeed, for the valgus/varus and the medial/lateral rotation, it is known that the deviation or rotation angle at rest can vary by several degrees inwardly or outwardly, from one user to the next. In such a case, one can, in an initialization phase, measure these angles, or part of these angles, at rest so that only the variation of the angles involved is measured subsequently.
- The angle measurements can be processed in any appropriate format, whether analog or digital. To this end, the measurement can be carried out continuously or sequentially.
- Each association of indicative angles identifies a critical posture of the skier in which an injury in the area of the knee is at risk. The values of the indicative angles are not to be considered limiting. For example, the values can considered, within the scope of the invention, to be within a margin of more or less 30 percent. These values may not be exactly the same for all users or categories of users. For example, the indicative values can be more or less high for experienced skiers or beginners.
- The algorithm of
FIG. 7 includes a consideration of four critical postures. This number is non-limiting; there could be more or less, the general idea being that there needs to be at least two angle measurements between the upper leg and lower leg in order to identify a critical posture. A third level could also be added, above thelevel 31, that is, adding the measure of a third angle and its comparison with an associated indicative angle to analyze the posture of the skier and identify the critical character of the skier's posture. - Moreover, the invention is to prevent only certain risks of injury, meaning that it is possible to control the release command by associating the measurement and the analysis of other angles or forces, for example, of the angles or forces in the area of the ankle and/or of the user's boot.
-
FIG. 8 shows a schematic representation of the principle of the control device. It shows a measuring member in the form of a knee pad 42. This member is able to measure at least two flexion or rotation angles of the lower limb of the skier among the angles, which include the flexion angle, the valgus/varus angle, the medial/lateral rotation angle. Other constructions are suitable for this measuring member. The signal originating from the measuring member is transmitted to a circuit 44 for processing the signal. - The device further includes a table 46 with the posture-indicative values associated with each of the measured angles. A processing circuit 47 analyzes the angles measured and compares them to the indicative values in accordance to what has been described above.
- The processing circuit 47 controls a command circuit 48, which is able to transmit a command for switching the release state to the retaining system. For example, as shown, the circuit 48 controls the opening of a front retaining element 49 in accordance to the
patent documents FR 2 843 037 and U.S. Pat. No. 7,073,812, mentioned above. Other constructions of retaining systems are also suitable. - The transmission between the various components of the device is carried out by wire or wireless, as appropriate. Furthermore, the signals can be analog or digital.
- The present disclosure is given only by way of example, and other embodiments of the invention are possible without leaving the scope of the invention.
- In particular, the invention is not limited to the field of skiing but can be applied to any gliding or rolling activity whereby the user is retained on his/her apparatus by at least one releasable retaining mechanism/binding, such as the activities of snowboarding, telemark skiing, cross-country skiing, and other types of activities and sports. Depending upon the sport and the category of users, the indicative values can be different from those that have been described herein.
Claims (13)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0610784A FR2909761B1 (en) | 2006-12-11 | 2006-12-11 | METHOD FOR CONTROLLING THE CONNECTION BETWEEN AN INDIVIDUAL AND ITS SLIDING OR ROLLING MACHINE AND DEVICE FOR CARRYING OUT THE METHOD |
FR06.10784 | 2006-12-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20080136157A1 true US20080136157A1 (en) | 2008-06-12 |
Family
ID=38461231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/953,432 Abandoned US20080136157A1 (en) | 2006-12-11 | 2007-12-10 | Method for controlling the connection between a gliding/rolling apparatus and user and a device for implementing the method |
Country Status (4)
Country | Link |
---|---|
US (1) | US20080136157A1 (en) |
EP (1) | EP1932570B1 (en) |
AT (1) | ATE517669T1 (en) |
FR (1) | FR2909761B1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3001898B1 (en) * | 2013-02-11 | 2015-04-03 | Fabrice Devaux | SECURE ATTACHMENT OF SHOE ON A SKI |
FR3039890B1 (en) * | 2015-08-07 | 2017-09-01 | Brison S A | DEVICE FOR MEASURING THE ORIENTATION OF TWO SKIS OR TWO SKI SHOES |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3644919A (en) * | 1970-12-18 | 1972-02-22 | William R Mathauser | Signalling device for indicating improper position of a skier |
US3909028A (en) * | 1971-06-03 | 1975-09-30 | Salomon & Fils F | Knee twist sensing ski binding |
US4095821A (en) * | 1975-06-20 | 1978-06-20 | Etablissements Francois Salomon Et Fils | Safety ski binding |
US4156534A (en) * | 1976-09-02 | 1979-05-29 | S.A. Establissements Francois Salomon & Fils | Safety bindings for skis |
US4160555A (en) * | 1976-05-18 | 1979-07-10 | S.A. Des Ets Francois Salomon & Fils | Safety bindings for skis |
US4371188A (en) * | 1980-06-24 | 1983-02-01 | University Of California | Method for programmed release in ski bindings |
US4395759A (en) * | 1979-06-22 | 1983-07-26 | Marker-Patentverwertungsgesellschaft Gmbh | Electronic safety ski binding with redundant sensors |
US4494768A (en) * | 1980-06-24 | 1985-01-22 | The Regents Of The University Of California | Apparatus for programmed release in ski bindings |
US4538828A (en) * | 1982-03-25 | 1985-09-03 | Salomon S.A. | Safety ski binding |
US4804001A (en) * | 1980-03-31 | 1989-02-14 | Physical Diagnostics, Inc. | Dynamic joint motion analysis technique |
US5295704A (en) * | 1990-12-06 | 1994-03-22 | Flock Thomas P | Ski binding with knee flex sensor |
US5743550A (en) * | 1994-02-12 | 1998-04-28 | Frohwein; Otto | Electronically controlled safety binding for skis and snow board |
US6007086A (en) * | 1997-04-18 | 1999-12-28 | Hopkins; Mark D. | Electric ski binding system |
US7073812B2 (en) * | 2002-08-01 | 2006-07-11 | Salomon S.A. | Assembly for retaining a boot on gliding board |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2707514B1 (en) | 1993-07-16 | 1995-09-29 | Salomon Sa | Alpine ski binding element. |
FR2767266B1 (en) * | 1997-08-13 | 1999-10-22 | Pascal Didier Toschi | ADVANCED SKI EQUIPMENT |
AU2003265142A1 (en) * | 2003-08-26 | 2005-03-10 | Scuola Superiore Di Studi Universitari E Di Perfezionamento Sant'anna | A wearable mechatronic device for the analysis of joint biomechanics |
FR2860729B1 (en) | 2003-10-10 | 2006-04-28 | Salomon Sa | RETAINING ELEMENT OF A SHOE ON A SLIDING OR ROLLING BOARD |
-
2006
- 2006-12-11 FR FR0610784A patent/FR2909761B1/en not_active Expired - Fee Related
-
2007
- 2007-12-03 EP EP07023326A patent/EP1932570B1/en not_active Not-in-force
- 2007-12-03 AT AT07023326T patent/ATE517669T1/en active
- 2007-12-10 US US11/953,432 patent/US20080136157A1/en not_active Abandoned
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3644919A (en) * | 1970-12-18 | 1972-02-22 | William R Mathauser | Signalling device for indicating improper position of a skier |
US3909028A (en) * | 1971-06-03 | 1975-09-30 | Salomon & Fils F | Knee twist sensing ski binding |
US4095821A (en) * | 1975-06-20 | 1978-06-20 | Etablissements Francois Salomon Et Fils | Safety ski binding |
US4160555A (en) * | 1976-05-18 | 1979-07-10 | S.A. Des Ets Francois Salomon & Fils | Safety bindings for skis |
US4156534A (en) * | 1976-09-02 | 1979-05-29 | S.A. Establissements Francois Salomon & Fils | Safety bindings for skis |
US4395759A (en) * | 1979-06-22 | 1983-07-26 | Marker-Patentverwertungsgesellschaft Gmbh | Electronic safety ski binding with redundant sensors |
US4804001A (en) * | 1980-03-31 | 1989-02-14 | Physical Diagnostics, Inc. | Dynamic joint motion analysis technique |
US4371188A (en) * | 1980-06-24 | 1983-02-01 | University Of California | Method for programmed release in ski bindings |
US4494768A (en) * | 1980-06-24 | 1985-01-22 | The Regents Of The University Of California | Apparatus for programmed release in ski bindings |
US4538828A (en) * | 1982-03-25 | 1985-09-03 | Salomon S.A. | Safety ski binding |
US5295704A (en) * | 1990-12-06 | 1994-03-22 | Flock Thomas P | Ski binding with knee flex sensor |
US5743550A (en) * | 1994-02-12 | 1998-04-28 | Frohwein; Otto | Electronically controlled safety binding for skis and snow board |
US6007086A (en) * | 1997-04-18 | 1999-12-28 | Hopkins; Mark D. | Electric ski binding system |
US7073812B2 (en) * | 2002-08-01 | 2006-07-11 | Salomon S.A. | Assembly for retaining a boot on gliding board |
Also Published As
Publication number | Publication date |
---|---|
ATE517669T1 (en) | 2011-08-15 |
FR2909761A1 (en) | 2008-06-13 |
EP1932570A1 (en) | 2008-06-18 |
EP1932570B1 (en) | 2011-07-27 |
FR2909761B1 (en) | 2009-03-13 |
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