Classifications

• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
  • A63C5/00—Skis or snowboards
  • A63C5/16—Devices enabling skis to be used whilst held in a particular configuration with respect to each other, e.g. for training purposes
• • 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
  • A63C2203/22—Radio waves emitting or receiving, e.g. remote control, RFID

Definitions

• the invention relates to a coupling device between two pads.
• the invention also relates to a system for assisting in the learning of a sliding sport on two skates, in particular skis.
• Application EP0561 125 describes a device making it possible to secure and direct a student during the practice of skiing.
• This device mainly consists of a harness which is worn by the student and an endless leash connected to said harness.
• This leash allows another person, for example, a ski instructor, to hold the student on the slope and to direct him.
• the object of the invention is to improve the known systems for assisting in the learning of a sliding sport on skates, in particular on skis.
• the object of the present invention is more particularly to provide a system allowing a beginner to experience his first sensations of sliding in the most realistic way possible and in complete safety.
• the present invention relates to a coupling device for coupling two pads.
• the device includes a first fixing module and a second fixing module, each designed to be fixed to a pad.
• the device further comprises a body between the two fixing modules, said body allowing at least a freedom in translation between the two fixing elements.
• the distance between the two fixing modules is free between a predetermined minimum distance and a predetermined maximum distance.
• the body comprises at least one slide link.
• the slide link comprises at least a first stop and at least a second stop for keeping the distance between the two fixing modules respectively between the predetermined minimum distance and the predetermined maximum distance.
• the device comprises damping means for progressive blocking against the first stop and / or against the second stop.
• each fixing module is mechanically linked to the body by a ball joint.
• the invention also relates to a system for assisting in the learning of a sliding sport on two skates, in particular two skis, comprising a coupling device according to the invention.
• the system comprises at least one strand the first end of which is fixed to the fixing module and the second of which end is intended to be fixed to the user, in particular for holding the user's pelvis forwards.
• the system includes an automatic winder to keep the strand under tension and to block the strand when said strand reaches a predefined maximum length.
• the system comprises at least one leash with two guide strands, each guide strand being designed to be fixed to a shoe or to a fixing module so that the shoes can be slowed down or guided by said strands guide.
• each guide strand comprises an automatic reel to control the length of each guide strand, the automatic reel comprising a trigger for causing the winding or unwinding of the guide strand.
• each guide strand comprises,
• the system further comprises a GPS chip connected to an electronic device by a means of transmitting information.
• the invention relates to a device for maintaining the position of a pupil comprising a fixing module intended to be fixed on a skate, the device comprising at least one strand the first end of which is connected to the fixing module and the second end of which is designed to be attached to the student, preferably to help him maintain a forward position.
• Said strand may comprise an automatic winder and / or a means for adjusting the length of the strand, preferably fixed to the fixing module.
• Figure 1 shows a student and a teacher using the system according to an embodiment of the present invention.
• FIG. 2 is a perspective view of a fixing module according to an embodiment of the invention.
• the fixing module makes it possible to fix the body of the coupling device on each shoe.
• Figure 3 is a schematic sectional view of a coupling device according to an embodiment of the invention for connecting two pads.
• Figure 4 is a perspective view of a body of a coupling device according to a second embodiment of the invention in which the translational movements of the pads are limited.
• FIG. 5 is a perspective view of a body of a coupling device according to an embodiment in which the two portions of the body are detached.
• FIG. 6 is a schematic view of a guide strand of the system according to a mode of representation of the invention.
• Figure 7 is a schematic view of the electronic components present in one embodiment of the system.
• Figure 8 is a perspective view of a fixing module according to one embodiment of the invention forming a connection with the carriage of the body of the coupling device.
• Figure 9 is a perspective view of a body of a coupling device according to a third embodiment.
• FIG. 10 is a perspective view of a body of a coupling device according to the third embodiment in which the two portions of the body are detached.
• FIGS. 1 to 10 An example of an assistance system 1 and of a coupling device according to embodiments of the invention are described below with reference to FIGS. 1 to 10. To facilitate reading, the same references will be used on the different embodiments to designate the same components or equivalent components.
• the system shown in Figure 1 includes a leash comprising at least two strands 3.
• Each strand 3 is designed to be fixed to a pad 8 of the student 5 and held by another person 4 which we will call “monitor” in the rest of this description.
• the instructor 4 can thus control the speed of the student 5 and help him to change direction by moving inside the turn and / or by pulling on the strands 3.
• the system 1 further comprises a coupling device 2.
• the coupling device 2 comprises at least two fixing modules 6, 6 '.
• Each fixing module 6, 6 ' is designed to be fixed to a shoe 8, 8'.
• the two fixing modules 6, 6 ' are interconnected by a body 7.
• the body 7 is therefore connected to the two fixing modules 6, 6 '.
• each end of the body 7 is connected to a fixing module.
• the body 7 extends between the two fixing modules 6, 6 '.
• the fixing module 6 comprises at least one fixing element 61 for fixing it to the shoe 8, 8 'and at least one means of link 62 for its connection to the body 7 of the coupling device 2.
• the fastener 61 may include a jaw to be reversibly attached to a pad.
• the fastener 61 may include a suction cup and / or clamping system.
• the fixing element comprises a jaw.
• the connecting means 62 is intended to cooperate with a means for connecting the body 7.
• the connecting means 62 is preferably designed to form with the body 7, a ball joint connection.
• the connecting means 62 of the fixing module 6 illustrated in FIG. 2 comprises a female ball joint but could include a male ball joint.
• the connecting means makes it possible to receive a complementary connecting means of a carriage 33.
• the fixing module 6 also comprises a female connector 65 for connecting a guide strand 3.
• the coupling device 2 can further comprise at least one strand 64, a first end of which is connected to the fixing module 6 and the second end of which is designed to be attached to the pupil 5 in order to help him maintain a position forward.
• This strand 64 helps the students, especially young children, to maintain their pelvis towards the front of the skates.
• the strand 64 makes it possible to connect the fixing module 6 to the body of the student 5.
• Said strand 64 may include an automatic winder 63 and / or a means for adjusting the length of the strand.
• the automatic winder 63 keeps the strand 64 under tension.
• the automatic winder 63 also makes it possible to block the unwinding of the strand 64 when it reaches a predefined maximum length.
• the automatic rewinder comprises means for adjusting said predefined length, for example, a push button (not shown). The push button allows for example to release the retractor from a return spring and then to modify the predefined length of the strand 64.
• the at least one strand 64 can serve as a visual guide for exercising the edge grips by highlighting the movements of the pelvis.
• the second end preferably includes reversible VELCRO® type fasteners or a carabiner for attachment to the student's body.
• the strand 64 is designed to be fixed to the student's clothing, for example at the waist so as to prevent him from tipping his pelvis back. These fasteners are designed to detach in the event of high tension on the strand.
• the invention relates to a device for maintaining the position of a student comprising a fixing module 6 intended to be fixed on a skate, the device comprising at least one strand 64 of which a first end is connected to the module fastening 6 and the second end of which is designed to be attached to pupil 5, preferably in order to help him maintain a forward position.
• Said strand 64 may comprise an automatic winder 63 and / or a means for adjusting the length of the strand, preferably fixed to the fixing module 6.
• the binding module 6 can then be designed to fit on a ski or a snowboard.
• the coupling device 2 as a whole is described below with reference to Figures 3, 4, 5, 9 and 10.
• Said coupling device 2 advantageously makes it possible, on the one hand, to force the pupil 5 to keep his two skates 8 within a predetermined distance range, and on the other hand, to limit the divergence and the convergence of the skates.
• the coupling device 2 is designed to allow at least one translation of the first fixing module 6 relative to the second fixing module 6 'so that the distance between the two fixing modules can be free between a minimum first distance predetermined and a second predetermined maximum distance.
• a free distance it is meant here that the pupil can bring his skates, and therefore the two fixing modules together and away from each other, between a maximum distance and a minimum distance.
• This controlled freedom makes it possible to force the student 5 to maintain his skates 8, 8 ’within a predetermined distance range that can be adjusted from one another.
• the approximation and / or the distance between the two pads 8, and therefore between the two fixing modules 6, 6 ′ could be achieved by any movement other than translation, but of preferably by substantially a translation.
• the coupling device 2 further comprises a body 7 between the two fixing elements 6, 6 '.
• the body 7 allows at least one translation between the connecting means 62, 62 'of the fixing modules 6,6'.
• the coupling device 2 comprises a body 7 comprising a first portion 1 1 and a second portion 12. The body 7 connects the connecting means 62 of the first fixing module 6 to the connecting means 62 'of the second fixing module 6' .
• At least one, preferably the two portions 1 1, 12, comprises a slide 32, 32 ’designed to receive a carriage 33, 33’.
• the carriage 33, 33 ’ is therefore linked to one of the portions 11, 12 with a degree of freedom in translation.
• another displacement can be envisaged, in particular substantially a translation.
• the carriage 33, 33 ’ is connected to a connecting means 62, 62’ of a fixing module 6, 6 ’.
• the mechanical connection between the carriage 33, 33 ’and the connecting means 62, 62’ may include a mechanical connection allowing at least one degree of freedom in rotation.
• the mechanical connection between the carriage 33, 33 ’and the fixing module 6, 6’ is a ball joint, allowing three degrees of freedom in rotation. This ball joint connection makes it possible, when the pads 8, 8 ’are skis, not to prevent the skier from taking an edge.
• the carriage 33, 33 ’ comprises a portion designed to cooperate with the connection means 62 so as to form a ball joint connection.
• the slide 32, 32 'can include at least a first stop 13, 13' to block the translation of the carriage 33, 33 'in a first direction.
• the slide may further comprise at least a second stop 14, 14 ’for blocking the translation of the carriage 33, 33’ in a second direction opposite to the first direction.
• the carriage 33, 33 ' When moving one shoe relative to the other, the carriage 33, 33 'follows the slide between the first stop 13, 13' and the second stop 14, 14 '. During the movement of one shoe relative to the other, the carriage 33, 33 'can thus move along the slide 32, 32' between the first stop 13, 13 'and the second stop 14, 14'.
• the position along the slide of at least one stop 13, 13 ’, 14, 14’ is adjustable.
• the at least one first stop 13, 13 ’and / or the at least one second stop 14, 14’ can be moved along the slide 32, 32 ’. This improvement advantageously allows to modify the maximum and minimum distances according to the progress of the student and / or according to the student.
• the at least one second stop can even be removed to set the minimum distance to around 0 cm.
• the first minimum distance and / or the second maximum distance are variable depending on the position of the stops.
• the first predetermined minimum distance between the two connecting means 62, 62 ' is between 0 cm and 35 cm. In one embodiment, the second predetermined maximum distance between the two connecting means 62, 62 'is between 2 cm and 40 cm.
• the difference between the first minimum distance and the second maximum distance is between 2 cm and 40 cm.
• the first minimum distance and the second minimum distance can be adjusted by moving one or more stops 13, 13 ’, 14, 14’ along the slide 32, 32 ’.
• the first stops are removable from the slide so as to predetermine the first minimum distance at 0 cm.
• the body 7 may comprise at least one recentering and / or damping means for the progressive blocking of the carriage 33, 33 ’against the first stop 13, 13’ or against the second stop 14, 14 ’.
• the first stop 13, 13 'and / or the second stop 14, 14' may comprise the at least one recentering and damping means 15.
• the recentering and damping means or may include a compressible material such as a foam or an elastomer. Or the recentering and damping means 15 may comprise a spring.
• the attachment between the first portion 11 and the second portion 12 may include a breakable or detachable attachment.
• This attachment of the first portion 1 1 and the second portion 12 between them is advantageously a removable reversible connection.
• this fixing can be detachable automatically in case of excessive stress.
• This fixing advantageously allows automatic or semi-automatic, for example assisted, fixing of the two portions 1 1, 12.
• each portion 1 1, 12 comprises corresponding connection elements.
• Said breakable or detachable attachment according to the embodiment is for example designed to separate the first portion 11 of the second portion 12 in the event of mechanical shock greater than a predetermined stress.
• This disjunction of the body 7 makes it possible to limit certain risks of injury, for example in the case where the pupil only takes off one foot while the two pads remain connected by the device.
• Said detachable attachment may include a removable or reversible connection.
• the detachable attachment may comprise a VELCRO® type attachment device or a closure with hooks and / or flexible loops.
• the attachment comprises two magnets 30, 30 'on the end of the first portion 1 1 and the second portion 12.
• any attachment comprising at least one magnet can be put in action.
• the connection elements of the portions 1 1, 12 are designed for a magnetized mutual connection, and for this purpose comprise at least one magnet, or even at least two magnets (one magnet each or more).
• the magnet (s) 30, 30 ’ are designed to be separated. This separation is obtained from a predetermined constraint.
• Said detachable attachment may comprise a material whose tensile strength is less than 30 MPa.
• the first portion 1 1 and the second portion 12 may also include complementary fastening means, in other words connection elements, such as male / female pairs.
• connection elements such as male / female pairs.
• These complementary fixing means or connection elements may comprise at least one stud 31 and at least one hole 31 'designed to receive the stud 31, as illustrated by a second embodiment in FIG. 5.
• the at least one stud 31 and the at least one hole 31 'designed to receive the stud 31 comprise the two magnets 30, 30'.
• Figures 9 and 10 illustrate a third embodiment of a removable magnetic connection between a first portion 1 1 and a second portion 12 of a body 7.
• the body 7 comprises a first portion 1 1 linked to the first module 6, a second portion 12 linked to the second module 6 ′, and a third intermediate portion 27 linked respectively to the first two portions 1 1, 12.
• the first two portions 1 1, 12 therefore form end portions of the body 7.
• the third intermediate portion 27 comprises different parts which are movable with respect to each other in order to adjust the length of this third portion 27.
• This construction allows the body 7 to fulfill the function of freedom in translation allowing the free modification of the distance between the two fasteners 6, 6 'within a predefined limit.
• the third portion comprises telescopic cylinders sliding relative to one another. Adjustment stops are provided to define the amplitude of movement of each telescopic cylinder.
• Each of the first two portions 1 1, 12 comprises a connection element 41 to form a removable connection with a corresponding connection element 40 of the third portion 27.
• connection elements 40, 41 implement a magnetized mutual fixing.
• connection element 40 of the third portion 27 has a frustoconical shape and is a magnet.
• connection element 41 of the end portions 1 1, 12 has a corresponding hollow shape, allowing the accommodation of the connection element 40 of frustoconical shape mentioned above.
• this hollow shape is open laterally, to allow detachment of the frustoconical shape, in a particular predefined direction, as will be detailed below.
• connection element 40 connecting the frustoconical connection element 40 to the third intermediate portion 27 in the fixing configuration.
• second link between the second portion 12 and the third portion 27 could be different, for example having different connection elements, and / or not being removable, and / or not being magnetized.
• FIG. 10 illustrates the coupling device 2 according to the third embodiment in a detached configuration, more precisely semi-detached. Indeed, in this configuration, the first portion 1 1 and the third intermediate portion 27 are detached. Their corresponding connection elements 40, 41 are no longer in engagement. On the other hand, the second portion 12 and the third intermediate portion 27 remain fixed to one another. As a variant, these two portions 12, 27 could also be detached, in a similar manner to the two portions 11, 27. According to the embodiment, a cable 42 is fixed on the one hand to the connection element 40 of the third portion 27 and on the other hand to the first portion 11.
• this first portion 1 1 incorporates an automatic reel, which allows the cable 42 to unwind automatically to increase the distance between the two portions 1 1, 27.
• the reel exerts a restoring force on the cable 42, which rolls up the cable automatically if the two portions 1 1, 27 come together, and promotes the bringing together of the two portions 1 1, 27, to assist a user during a phase of fixing the body 7.
• the same arrangement is symmetrically arranged between the second portion 12 and the third portion 27.
• this cable 42 remains optional and it is possible to envisage an alternative embodiment without cable.
• this third embodiment allows a user-friendly detachment from the coupling device. If the user wishes for example to carry out a walk with his two pads 8, 8 ′, during which he no longer needs the support of the coupling device 2, he can easily detach the portions of the body 7 in order to reach a detached configuration which favors this walk.
• the arrangement is such that this detachment can be obtained automatically by positioning the two pads 8, 8 'in a predefined position. In this embodiment, it suffices to position the two pads along parallel and close axes, and with one foot strongly advanced relative to the other. This position of the pads makes it possible to position the body 7 of the coupling device 2 in a direction substantially parallel to the two pads 8, 8 '.
• connection elements 40, 40 ′ separate automatically.
• the forces exerted on the body 7 have a sufficient amplitude to exceed the magnetic force of the magnetized link.
• the direction of the forces exerted is substantially random and eventually reaches the direction of detachment. Therefore, the solution also allows detachment automatic portions of the body 7 during a fall, beyond a stress exerted, to achieve safety for the user.
• the third embodiment also makes it possible to assist the user in fixing the different portions of the body 7, to go from the detached configuration to the attached configuration. Indeed, the user can reposition his pads in alignment as described for detachment, then bring them together so that the cable or cables 42 automatically wind completely, at the same time guiding the approximation of the connection elements 40, 40 '. When the latter are close enough, the magnetic shape of the magnets is sufficient for their final approximation in the fixing configuration.
• the solution according to this embodiment thus makes it possible to implement an automatic detachment and fixing of at least two portions of the body 7.
• the coupling device 2 particularly of the relative position of the two fixing modules 6, 6 ', which allows the detachment or the fixing of at least two portions separable by a removable link.
• This particular positioning therefore allows the transition from the detached configuration to the fixing configuration and vice versa.
• the other positions of the coupling device 2, particularly the relative position of the two fixing modules 6, 6 ’, do not allow this change of configuration.
• connection elements could take other forms without departing from the scope of the invention. They could implement a magnetic bond, like described, or not magnetized, but for example simply clipped.
• the body 7 may comprise two, three or more independent portions, movable relative to one another, in particular detachable to form a removable connection of the coupling device 2.
• the first portion and the second portion may include concentric tubes sliding one inside the other. Each portion is then fixed to a fixing module by a mechanical connection not comprising degrees of freedom in translation.
• the first portion can slide along the second portion between a first stop blocking the translation of the two portions in a first direction and a second stop blocking the translation of the two portions in a second direction opposite to the first direction.
• the distance between the two fixing modules then varies between a maximum distance and a minimum distance when the first portion is blocked respectively by the first stop and the second stop.
• the guide strand 3 is intended to be fixed to the fixing module 6.
• the fixing module 6 preferably comprises a plug-in connector 65 intended to receive one end of the guide strand 3.
• the guide strand 3 preferably comprises at least one first elastic portion 9.
• the at least one elastic portion 9 makes it possible to absorb shocks when the strand 3 is energized.
• This elastic portion 9 advantageously allows the student 5 to feel the jolts less.
• the jolts can indeed be a source of imbalance, for example when there is a speed differential between the instructor and the student and that the guide wire 3 is tightened.
• the guide strand 3 more advantageously comprises at least one portion provided with fringes 9 'designed to increase its visibility.
• the elastic portion 9 allows the elastic damping of shocks in the event of mechanical tension on the guide strand 3 up to a predetermined stress.
• Said elastic portion 4 can comprise an elastomeric material, such as synthetic polyisoprene (IR).
• IR synthetic polyisoprene
• the guide strand 3 may further comprise a breakable or detachable portion 10.
• Said breakable or detachable portion 10 is designed to separate the guide strand 3 into two parts in the event of mechanical tension greater than a predetermined stress. The two parts are the parts located on one side and the other of said breakable or detachable portion 10.
• Said breakable or detachable portion 10 can comprise a material whose tensile strength is less than 20 MPa.
• Said breakable or detachable portion 10 may comprise a removable link, said link being able to yield in the event of tension greater than a given stress.
• said removable link is reversible.
• the removable connection may include a VELCRO® type fixing device or a closure with hooks and / or flexible loops.
• Said removable link can also include two magnets designed to be separated from a predetermined constraint.
• the elastic portion 9 comprises a material whose elastic limit is greater than the stress necessary to cause the bond of said breakable or detachable portion 10 to give way.
• each guide strand 3 comprises an automatic reel 17.
• the automatic reel 17 is designed to be carried in the hand of the monitor 4.
• the automatic reel 17 advantageously makes it possible to wind the guide strand 3 on himself, thus allowing the monitor 4 to adjust the distance of the guide wire 3 between him and the student 5.
• the automatic winder 17 comprises a trigger 18 designed to trigger the automatic winding of the strand and / or the automatic unwinding of the guide strand 3.
• the automatic retractor 17 may include means for staying close to the wrist of the monitor if the monitor releases it.
• Said means may include a strap attached to the reel 17 and intended to be passed around the blow or wrist of the monitor.
• the strap can also be intended to be attached to the suit of the monitor, preferably at the level of the sleeve.
• the learning aid system 1 comprises a GPS chip 20 and transmission means 21 for transmitting position and displacement information to an electronic system 22 nearby.
• the electronic device 22 is preferably a portable telephone.
• the system 1 may further comprise at least one inertial unit 23 for transmitting to the electronic system 22 information relating to the linear accelerations of the pupil in the three orthogonal directions.
• the inertial unit 23 preferably comprises three accelerometers which calculate the linear accelerations along three orthogonal axes.
• the system 1 can also comprise at least one gyrometer 24 for calculating and transmitting to the electronic system 22 rotations or angular speeds of the student.

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• Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
• Motorcycle And Bicycle Frame (AREA)
• Mechanical Control Devices (AREA)
• Accessories Of Cameras (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=66166122

Family Applications (1)

Country Status (7)

Family Cites Families (26)

• 2018
  • 2018-11-13 FR FR1871505A patent/FR3088217A1/fr not_active Withdrawn
• 2019
  • 2019-11-13 WO PCT/EP2019/081121 patent/WO2020099458A1/fr unknown
  • 2019-11-13 EP EP19801880.6A patent/EP3880321B1/de active Active
  • 2019-11-13 CA CA3119571A patent/CA3119571A1/en active Pending
  • 2019-11-13 JP JP2021525104A patent/JP7240768B2/ja active Active
  • 2019-11-13 US US17/291,920 patent/US11331559B2/en active Active
  • 2019-11-13 CN CN201980073919.4A patent/CN112996574B/zh active Active

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