US20090212534A1 - Release device for a binding for a boot on a gliding apparatus - Google Patents

Release device for a binding for a boot on a gliding apparatus Download PDF

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Publication number
US20090212534A1
US20090212534A1 US12/392,662 US39266209A US2009212534A1 US 20090212534 A1 US20090212534 A1 US 20090212534A1 US 39266209 A US39266209 A US 39266209A US 2009212534 A1 US2009212534 A1 US 2009212534A1
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Prior art keywords
axis
release
tripper
release device
lever
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Abandoned
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US12/392,662
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English (en)
Inventor
Jean-Pierre Mercat
Daniel Soldan
Laurent Damiani
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Salomon SAS
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Salomon SAS
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Assigned to SALOMON S.A.S. reassignment SALOMON S.A.S. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MERCAT, JEAN-PIERRE, DAMIANI, LAURENT, SOLDAN, DANIEL
Publication of US20090212534A1 publication Critical patent/US20090212534A1/en
Abandoned legal-status Critical Current

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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
    • 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 gliding apparatus equipped with a release device for a device for binding a boot on the gliding apparatus.
  • the invention relates in particular to a release device for a device for binding a boot on a gliding board comprising a rotatable electromagnetic motor, or the like.
  • the present invention relates to a device for binding a boot on a ski comprising a releasable front retaining element and a releasable rear retaining element, and further comprising additional electronically-controlled means for opening the binding, these additional opening means being equipped with a release device.
  • the document WO 95/12440 discloses a device that includes a releasable front retaining element, a releasable rear retaining element, and additional opening mechanism.
  • the front and rear retaining elements are conventional mechanical binding elements for a ski boot, namely, a front/toe piece element and a rear/heel piece element, which release the boot from its ski when the boot is subjected to loads beyond a given threshold.
  • the load threshold corresponds to the prestress value to which springs positioned in the toe and the heel pieces are subjected.
  • the additional opening mechanisms are constituted by an electronically-controlled latch, which releases the boot by allowing the free translation of the heel along a slide rail.
  • the latch is actuated by means of a vertical translational movement. In the normal resting position, the latch is maintained in a low position by the force of a spring, whereas movement to the high position is caused by the pressurizing of an annular chamber surrounding the latch.
  • the impacts to which the gliding apparatuses, i.e., the skis and the bindings, are subjected can be very substantial.
  • impacts occur during skiing, i.e., when landing from jumps or passing over bumps, e.g., and they occur when the equipment drops while in storage, or even when laying the equipment on the ground.
  • the mechanism controlling the release i.e., the latch
  • the mechanism controlling the release is actuated with a translational movement, such movement can be unintended and, in certain cases, such movement can generate an undesirable ill-timed release of the boot.
  • the invention provides a release device for a device for binding a boot on a gliding board, which operates in a more stable fashion than prior art devices, and in particular a release device which prevents ill-timed releases.
  • the invention provides a release device for a device for binding a boot on a gliding board, which is less expensive to manufacture.
  • the invention provides a release device for a device for binding a boot on a gliding board, which is more compact than existing prior art devices in order to allow for better integration into the ski and into the system of the boot binding device.
  • the invention provides a release device for a device for binding a boot on a gliding board comprising a rotatable electromagnetic motor that consumes less electricity.
  • the invention encompasses a release device for a device for binding a boot on a gliding board that includes a rotatable electromagnetic motor, having an axis A 1 , on the output shaft of which a cam is fixed; a lever pivoting about an axis A 2 , between a closed position and an open position, and having a large crank in contact with the cam and a small crank; a release mechanism (or “trigger”) that includes at least one control tooth, which is in contact with the small crank when the lever is in the closed position, and at least one release tooth; a rod capable of assuming a closed position and an open position, the rod being provided, at one of its ends, with a notch in which the release tooth is engaged when the rod is in the closed position.
  • the rod is connected by its other end to the boot retaining element, which is capable of moving away therefrom, thus releasing and freeing the boot.
  • the invention can employ a motor that can deliver a maximum torque of less than 2 mN ⁇ m (milliNewton ⁇ meter), or even less than 1 mN ⁇ m, on the output shaft.
  • the electromagnetic motor is in direct engagement, i.e., there is no gear train between the motor and the cam.
  • a drive finger is arranged at the end of the large crank, this drive finger being in contact with the cam surface.
  • the cam includes a plate on which a cam groove is provided, and this cam groove includes at least two distinct and contiguous portions, i.e., referred to as the initial ramp and the release ramp, the initial ramp being in the form of an arc whose variation in radius at the axis A 1 is less than 20%, as small as zero in a particular embodiment, and occupying an angular sector greater than 90°.
  • the initial ramp corresponds to a path of the drive finger between a point C 1 and a point C 2 , the points C 1 and C 2 being positioned, or substantially positioned, at the same distance from the axis A 1 .
  • the initial ramp corresponds to a path of the drive finger substantially forming an angular arc having an angle ⁇ 1 , centered on the axis A 1 , and having a radius R min .
  • the motor selected is miniaturized, and its electricity consumption is reduced as much as possible. It has a high rotation speed and only delivers a very low torque, on the order of 1 mN ⁇ m. This is not a limiting characteristic of the invention, and motors capable of delivering a torque greater than 2 mN ⁇ m can be used.
  • the torque required from the motor is directly proportional to the force of the drive finger on the cam, but also to the radius to which the latter is applied. Therefore, an initial ramp with a very small radius is advantageous in order to have a low torque at the start.
  • the initial ramp which corresponds to the start of the motor, is the smallest possible.
  • the radius of the initial ramp is equal to the sum of the radius of the drive finger and of the functional clearance.
  • the release ramp corresponds to a path of the drive finger between the point C 2 , positioned at a distance R min from the axis A 1 , and a point C 3 , positioned at a distance R max from the axis A 1 and occupying, in relation to the axis A 1 , an angular sector having an angle ⁇ 2 .
  • the plate includes a third portion, referred to as the final ramp, which is in the form of an arc whose variation in radius at the axis A 1 is less than 20%, as small as zero in a particular embodiment, this final ramp being contiguous with the release ramp.
  • the final ramp is in the form of an arc whose variation in radius at the axis A 1 is less than 20%, as small as zero in a particular embodiment, this final ramp being contiguous with the release ramp.
  • the final ramp corresponds to a path of the drive finger substantially forming an angular arc having an angle ⁇ 3 , centered on the axis A 1 , and having a radius R max .
  • the length L 1 of the large crank is greater than 2 times the length L 2 of the small crank; in a particular embodiment of the invention, the length L 1 is greater than 2.7 times the length L 2 .
  • the distance D 1 separating the control tooth from the axis A 3 is greater than three times the distance D 2 separating the release tooth from the axis A 3 , and 3.7 times greater in a particular embodiment.
  • the direction of the rod contact force on the tripper does not intersect with the circle K 1 .
  • the device according to the invention enables a reduction ratio higher than 50 and, in a particular embodiment, as much as higher than 100.
  • the axis A 2 and the axis A 3 are perpendicular.
  • the axis A 2 and the axis A 3 are substantially parallel.
  • the release device further includes a locking mechanism, which prevents the release tooth from disengaging from the notch, the locking mechanism being capable of being alternatively in the unlocked position or the locked position.
  • the locking mechanism includes a pawl on which is arranged a first stop which, when the locking mechanism is in the locked position, comes in contact with a locking tooth arranged on the tripper in order to prevent the rotation thereof in the release direction.
  • the pawl is rotationally mounted about an axis A 4 , and it includes a second stop, which is maintained in contact with a bolt by means of a latch spring.
  • FIG. 1 is a perspective view of a pair of skis according to the invention
  • FIG. 2 is a partial view of one of the skis described in FIG. 1 ;
  • FIG. 3 is a view of the release device according to a first embodiment of the invention.
  • FIG. 4 is a partial view of the device shown in FIG. 3 ;
  • FIG. 5 is a partial view of the release device according to the first embodiment
  • FIG. 6 is a view of the plate of the release device according to the first embodiment of the invention.
  • FIG. 7 is a partial view of a second embodiment of the invention.
  • FIG. 8 is a view of the tripper
  • FIG. 9 is a view of the lever
  • FIG. 10 is a view of a cam depicted in the device shown on FIG. 7 .
  • FIG. 1 shows a gliding apparatus according to the invention. More particularly, the illustrated embodiment is a pair of skis 1 constructed and arranged for the sport of alpine skiing. Each ski 1 is equipped with a binding device 47 for releasably retaining a boot 48 on its respective ski. To guarantee the user's safety, the binding devices 47 are equipped with a release device 4 .
  • FIG. 2 is a partial view of one of the skis 1 illustrated in FIG. 1 , showing the binding device 47 , which includes a front retaining element or binding 2 , or toe piece, for engaging the toe of the boot, a rear retaining element or binding 3 , or heel piece, for engaging the heel of the boot, as well as the release device 4 according to the invention.
  • the toe piece 2 is fixed on the ski 1 via a front interface 5 .
  • the heel piece 3 is fixed on the ski 1 via a rear interface 6 .
  • the toe piece 2 is a conventional front binding with mechanical release, i.e., it releases when the loads to which it is subjected are greater than the prestress value of a first spring positioned in the toe piece 2 .
  • the heel piece 3 is a conventional rear binding with mechanical release, i.e., it releases when the loads to which it is subjected are greater than the prestress value of a second spring positioned in the heel piece.
  • the front interface 5 and/or rear interface 6 can be integrated into the toe piece 2 and/or the heel piece 3 , respectively, or even integrated into the ski 1 .
  • the front interface 5 and rear interface 6 are independent parts that are fixed on the ski, and on which the toe piece 2 and the heel piece 3 are fixed.
  • the front retaining element namely the toe piece 2
  • the front retaining element includes a slide rail in which the body of the front retaining element can slide. It is the sliding motion of the toe piece 2 in the slide rail that constitutes the supplemental release.
  • the supplemental release is controlled by the release device 4 according to the invention.
  • the supplemental release controlled by the release device according to the invention, is an electronically-controlled release.
  • the control of the supplemental device by electronic means offers a number of advantages over the mechanical release.
  • a release can be provided, which is dependent upon the duration of the forces being applied to the user's leg. See, for example, U.S. Pat. No. 7,438,307 and U.S. Patent Application Publication No. 2008/0197607, the disclosures of which are hereby incorporated by reference thereto in their entireties.
  • a release can also be provided that is controlled directly by the user, such as, for example, by means of a button positioned on the handle of the ski pole, or on the ski itself.
  • the device of the invention is not limited to being used as a release device, which generates a supplemental release added to the releases of the front and rear retaining elements.
  • the device according to the invention can be used as a single release, which can be associated, for example, with non-releasable front and rear retaining elements such as stirrups or clamps. See, e.g., the aforementioned U.S. Patent Application Publication No. 2008/0197607.
  • the release device 4 includes a housing 8 positioned on the ski, between the front interface 5 and the rear interface 6 .
  • FIG. 3 shows a bottom view of the housing 8 of the release device 4 .
  • the housing 8 is fixed on the ski by means of four screws, not shown in this drawing figure, which extend though four holes 49 arranged on the housing 8 .
  • the housing 8 includes a plurality of cavities 56 , or depressions, in which are positioned the various parts and elements that comprise the control device 4 . These cavities are closed by a lid 7 which is maintained on the housing by means of a plurality of screws, six screws (not shown) according to the illustrated embodiment.
  • the release device includes a motor 9 positioned and retained by being wedged in one of the cavities of the housing 8 .
  • a cam 11 is fixed on the output shaft of the motor 9 , and it is rotationally driven by the motor 9 .
  • a lever 12 is positioned in another cavity of the housing 8 . It is pivotally mounted with respect to the housing by means of a first pin 50 .
  • the tripper 10 is also pivotally mounted in the housing by means of two pins 52 , in the form of protuberances projecting therefrom, and which are received in corresponding seats provided in the housing 8 and the lid 7 , respectively.
  • the rod 27 is slidably mounted in a cylindrical cavity of the housing.
  • the locking mechanism includes a bolt 32 , on which a cam bolt 34 is arranged. It also includes a pawl 16 pivotally mounted with respect to the housing by means of a second pin 51 and a handle 33 allowing for the actuation.
  • FIG. 5 shows a partial view of the release device according to the first embodiment.
  • the electronic component of the release device 4 is positioned on a main plate 36 , which is received in one of the cavities of the housing 8 .
  • the main plate 36 is connected to the motor by means of a motor cable 39 , to the sensor 43 by means of a sensor cable 42 , as well as to a limit plate 37 located in the vicinity of the pawl 16 and the tripper 10 .
  • FIG. 4 shows all of its mechanical parts, but shows neither its electric elements nor its housing.
  • the motor 9 is not shown in FIG. 4 , but the axis about which it turns, namely the axis A 1 , is shown in a fine dotted line.
  • the cam 11 is also rotatable, as it is driven by the motor 9 , about the axis A 1 .
  • the cam 11 includes a cylindrical body 54 and a plate 17 .
  • the plate 17 includes a cam pathway 18 , in the form of a groove 19 . This groove 19 receives the drive finger 35 of the lever 12 .
  • the lever 12 is pivotally mounted about an axis A 2 , shown in the drawing by a fine dotted line, and is embodied by a first pin 50 .
  • the lever 12 includes a large crank 20 , at the end of which the drive finger 35 is located, as well as a small crank 21 , at the end of which the retaining finger 22 is located.
  • the drive finger 35 is made from a wire which is forcibly inserted, i.e., frictionally maintained, in a cylindrical cavity of the lever, and which projects from the lever by a distance such that it can penetrate in the groove 19 of the cam 11 .
  • the retaining finger 22 which is subjected to greater forces than the drive finger 35 , also comprises a wire forcibly inserted in a circular cavity of the lever 12 , but it also includes a protuberance 57 of the lever which is used to support the wire.
  • the wires used are spring strands, for example. They allow for very high local support pressures.
  • the lever can also be made as a unitary element.
  • the other end of the rod 27 is not shown in this drawing figure.
  • the other end is connected to the retaining element of the boot, which is capable of moving away in order to release and free the boot.
  • the retaining element adapted to move away is the toe piece 2 .
  • the release device also includes a locking mechanism 53 .
  • the locking mechanism 53 has the function of maintaining the release device 4 in the closed state.
  • Such a locking mechanism is particularly advantageous because if the electrical energy feeding the control electronic circuit were to be lacking, or if the electronic circuit were to fail, there would be a risk of ill-timed release.
  • the locking mechanism 53 makes it possible to re-engage the release device 4 if the power supply were to be lacking while the device is in the open position.
  • the locking mechanism 53 includes a bolt 32 on which a cam bolt 33 is arranged; this bolt is actuated by a handle 33 and acts on the tripper 10 by means of a pawl 16 .
  • the pawl 16 is pivotally mounted about an axis A 4 defined by the second pin 51 .
  • the pawl 16 includes a first stop 29 adapted to come in contact with a locking tooth 25 arranged on the tripper 10 . It also includes a second stop 30 , an anchoring structure 55 intended for connecting a latch spring 31 , and arranged on the opposite pawl 16 , in relation to the axis A 4 of the second stop 30 .
  • the spring which works in compression maintains the second stop 30 in contact against the cam bolt 34 of the bolt 32 .
  • a user's action on the handle 33 causes the bolt 32 to rotate by a half-turn. It is then the “unlocking” portion of the cam bolt 34 which is opposite the second stop 30 .
  • the latch spring 31 ensures that the contact between the second stop 30 and the cam portion is properly maintained. In this position of the pawl 16 , the first stop 29 is no longer opposite the locking tooth 26 . Thus, the pawl does not prevent the rotation of the tripper 10 in the direction S, referred to as the release direction.
  • the release device 4 of FIG. 5 is shown from the top in order to show other elements thereof.
  • the main plate 36 supports the electronic components of the release device 4 . These include a printed circuit, an input/output device, which is connected to the acquisition/visualization module.
  • the limit plate 37 includes a limit sensor 59 of the tripper 10 , positioned in correspondence with the fin 40 of the tripper, and a limit sensor 60 of the pawl, positioned in correspondence with the fin 41 of the pawl.
  • the limit sensors enable the electronic device to constantly know the position of the tripper 10 and pawl 16 .
  • the sensor 43 positioned on the bar 13 informs the electronic components of the release device 4 about the forces to which the boot and the user's leg, are subjected.
  • FIG. 6 shows a front view of the plate 17 of the cam 11 .
  • a cam pathway 18 extends on the plate 17 , taking the shape of a groove 19 . This groove receives the drive finger 35 .
  • the cam pathway is the path followed by the median axis of the drive finger 35 .
  • the cam pathway 18 is divided into three distinct and contiguous portions, namely, an initial ramp 44 , a release ramp 45 , and a final ramp 46 .
  • the initial ramp 44 corresponds to the path followed by the drive finger 35 , from its resting position, defined by the point C 1 in FIG. 6 , up to a position defined by the point C 2 .
  • This initial ramp corresponds to an arc of circle centered on the axis A 1 and has a radius equal to R min .
  • the radius R min of the initial ramp is very small, in particular smaller than 2 mm (millimeters).
  • the second portion of the cam pathway 18 is the ramp 45 .
  • This release ramp corresponds to a path of the drive finger 35 between the point C 2 , positioned at a distance R min from the axis A 1 , and a point C 3 , positioned at a distance R max from the axis A 1 .
  • the release ramp 45 occupies, in relation to the axis A 1 , an angular sector having an angle ⁇ 2 .
  • the locking mechanism is in the “locking” position (as shown in FIG. 4 ).
  • the retaining finger 22 does not prevent the tripper 10 from pivoting in the release direction S, the tripper does not turn because it is prevented from doing so by the contact between the locking tooth 26 and the first stop 29 .
  • this first possibility corresponds to the case in which a “conventional” functioning of the binding system is desired, i.e., in which only the releases of the toe piece 2 or of the heel piece 3 can take place.
  • the second possibility corresponds to the normal functioning of the release device.
  • the unlocking device is in the unlocking position, and the pawl 16 does not prevent the tripper from turning in the release direction S.
  • the tripper 10 pushed by the spring leaf 23 , is driven in the release direction S, the release tooth 25 exits from the notch 28 and the rod 27 is released.
  • the sliding of the rod 27 causes that of the toe piece 2 , which results in freeing the boot.
  • the third portion of the cam groove 18 is referred to as the final ramp 46 . It corresponds to a path of the drive finger 35 between the point C 3 and the point C 4 . This is an arc of circle or a straight line having a constant or quasi-constant radius with respect to the axis A 1 . It occupies an angular sector having an angle ⁇ 3 substantially equal to 10°.
  • the drive finger 35 When the drive finger 35 is in the final ramp, it no longer exerts any force on the cam 11 , so that the motor no longer has to deliver a substantial torque. Given that the torque delivered by an electromagnetic motor is proportional to the current which it consumes, monitoring its electricity consumption makes it possible to know at which moment the drive finger 35 reaches its final position and, consequently, at which moment it is necessary to stop supplying the motor 9 .
  • the particular arrangement of the lever 12 and of the tripper 10 includes in particular the shape of each of these two parts, the distances which separate the contact points and the axes of rotation A 2 and A 3 , and the slopes of the contact surfaces between the various parts.
  • the length L 1 of the large crank is greater than 2 times the length L 2 of the small crank, and greater than 2.7 times in a particular embodiment.
  • the L 1 /L 2 ratio is equal to 3.
  • the distance D 1 separating the control tooth from the axis A 3 is greater than three times the distance D 2 separating the release tooth from the axis A 3 , and greater than 3.7 times in a particular embodiment.
  • the D 1 /D 2 ratio is equal to 5.
  • the orientation of the contact surfaces between the parts contributes to the reduction in the forces. This is particularly the case in the area of the rod/tripper and tripper/lever connections.
  • FIG. 8 illustrates a method for determining the slope of the contact surface of the rod/tripper connection, which is referred to as the first contact surface 62 .
  • the slope of the rod/tripper contact is then determined by taking into account the coefficient of friction ⁇ 2 between these two parts.
  • the direction of the contact force of the rod on the tripper is determined in relation to the normal at the “rod/tripper” contact point 65 . In order not to create a jamming of the system and a blocking thereof, one must ensure that the direction of the contact force 65 remains above the circle K 1 .
  • FIG. 9 illustrates a method for determining the slope of the contact surface between the tripper and the lever, this contact surface being arranged on the control tooth 24 .
  • the lever 12 is pivotally mounted by means of a first pin 50 having a radius R 50 .
  • a first pin 50 having a radius R 50 .
  • R 50 the friction in the pivot connection created by this first pin 50 .
  • the direction of the contact force 66 between the tripper 10 and the lever 12 is determined with respect to the normal at the “tripper/lever” contact point 67 by taking into account the coefficient of friction ⁇ 4 of the tripper 10 on the lever 12 .
  • the slope of the second contact surface 63 is then determined so that the direction of the contact force 66 remains out of the circle K 2 .
  • the user resets the handle 33 in the “unlocking” position by rotating it 180° about its axis.
  • the user then uses the acquisition/visualization module 58 (see FIG. 2 ), which includes a display screen and one or more acquisition buttons or a cursor, or any other means for exchanging information.
  • the acquisition/visualization module 58 is used for routine checks, e.g., whether the release device is turned on, whether it has sufficient energy (whether the battery charged, e.g.), and enables the user to enter certain data on his/her skiing technical skills, and on snow conditions.
  • the user can put on his/her skis and can begin skiing.
  • a plurality of exemplary cases may arise when skiing; for reasons of simplification, only three of such cases will be described.
  • the user makes a quick forward fall in the direction of the skis.
  • it is the heel piece 3 that releases and frees the boot.
  • the user is subjected to a quick leg twisting.
  • it is the toe piece 2 that releases and frees the boot.
  • the first two cases are conventional release situations.
  • the release situations are resolved by the binding devices such as are currently known on the market.
  • the leg twisting/or the leg forward tilting are not as fast; or yet these forces do not reach the release threshold of the toe piece 2 or of the heel piece 3 , but they are applied for a period of time such that they can endanger the user. This last case often occurs during falls while at a stop.
  • the sensor 43 (see FIG. 5 ) positioned on the bar 13 constantly measures the forces to which the toe piece is subjected and, through it, the forces to which the boot and the user's leg are subjected. The value of these forces is constantly analyzed by the electronic circuit that is present on the main plate 36 .
  • the electronic circuit contains the programming of a release law which determines, depending upon the value of the forces and the time during which they are applied to the user's leg, whether or not the release must be initiated.
  • the user In order to resume the practice, the user must reset the binding device.
  • the reset is done by pushing the toe piece 2 in the direction of the heel piece 3 .
  • This movement also drives the rod 27 translationally towards the tripper 10 , the latter still being in the open position.
  • the end of the rod comes in contact with the tripper 10 , the latter rotates in the direction opposite the release direction S.
  • This rotation brings the release tooth 25 in the notch 28 of the rod.
  • the electronic circuit positioned on the main plate 36 is informed of the return of the tripper 10 to its closed position, due to the limit sensor positioned on the limit plate, which cooperates with the fin 40 of the tripper.
  • the electronic circuit can then supply the motor 9 so that it turns in the opposite direction, bringing the cam 11 back into its initial position.
  • the cam 11 returns the lever 12 into the closed position, and the retaining finger 22 gets in contact with the control tooth 24 .
  • the release device then has returned to the closed position and reset, and the user can safely put his/her skis back on.
  • FIG. 7 shows a partial view of a second embodiment of the invention. Only the movable mechanical elements are shown in this drawing figure. Those elements which structurally differ from those of the first embodiment are identified by reference numerals having the prime (′) symbol.
  • the housing, the lid, as well as the electronic elements, are not shown in FIG. 7 , although their relative positions with the illustrated elements can be understood from the foregoing description.
  • the motor 9 drives a cam 11 ′.
  • the cam 11 ′ includes a cam groove, the initial portion of which is almost centered on the axis of rotation A 1 of the motor.
  • a lever 12 ′ is pivotally mounted about an axis A 2 by means of a pin 50 ′.
  • This lever includes a large crank 20 ′ at the end of which is a finger which follows the cam groove arranged in the cam 11 ′, as well as a small crank 21 ′ which, when the lever 12 ′ is in the closed position, retains a control tooth 24 ′ of the tripper 10 ′.
  • the tripper 10 ′ is pivotally mounted about an axis A 3 by means of the pin 52 ′.
  • the axis A 3 is parallel to the axis A 2 and to the axis A 1 .
  • a release tooth 25 ′, which retains the rod 27 is arranged on the tripper 10 ′.
  • FIG. 10 shows a front view of the cam 11 ′ of the device shown on FIG. 7 .
  • a cam pathway 18 extends on the cam 11 ′, in the form of a groove 19 . This groove receives the drive finger 35 ′.
  • the cam pathway is represented by the path followed by the median axis of the drive finger 35 ′.
  • the cam pathway 18 is divided into three distinct and contiguous portions, namely, an initial ramp 44 , a release ramp 45 , and a final ramp 46 .
  • This arc of circle C 1 -C 2 defines an angular sector having an angle ⁇ 1 substantially equal to 130°.
  • the radius R min of the initial ramp is very small, in particular smaller than 2 mm.
  • the second portion of the cam pathway 18 is the ramp 45 .
  • This release ramp corresponds to a path of the drive finger 35 ′ between the point C 2 , positioned at a distance R min from the axis A 1 , and a point C 3 , positioned at a distance R max from the axis A 1 .
  • the release ramp 45 occupies, in relation to the axis A 1 , an angular sector having an angle ⁇ 2 .
  • the third portion of the cam pathway 18 is referred to as the final ramp 46 . It corresponds to a path of the drive finger 35 ′ between the point C 3 and the point C 4 . This is an arc of circle or a straight line which has a constant or almost constant radius in relation to the axis A 1 . It occupies an angular sector having an angle ⁇ 3 substantially equal to 10°.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Transmission Devices (AREA)
US12/392,662 2008-02-26 2009-02-25 Release device for a binding for a boot on a gliding apparatus Abandoned US20090212534A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0801040A FR2927818B1 (fr) 2008-02-26 2008-02-26 Dispositif de declenchement pour fixation d'une chaussure sur un engin de glisse
FR0801040 2008-02-26

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US20090212534A1 true US20090212534A1 (en) 2009-08-27

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US12/392,662 Abandoned US20090212534A1 (en) 2008-02-26 2009-02-25 Release device for a binding for a boot on a gliding apparatus

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US (1) US20090212534A1 (fr)
EP (1) EP2095853A1 (fr)
FR (1) FR2927818B1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
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US20120074670A1 (en) * 2010-09-28 2012-03-29 Skis Rossignol Boot-Attachment Device on a Ski with Safety Interface
WO2012170935A2 (fr) * 2011-06-10 2012-12-13 Action Sports Junkie Fixation déclenchable pour snowboard
US9526971B1 (en) * 2015-09-18 2016-12-27 Rossland Binding Company Remote release ski binding
US20180264348A1 (en) * 2017-03-14 2018-09-20 Stop River Development LLC Processor-controlled Snow Sport Boot Binding
US10729968B2 (en) 2018-05-25 2020-08-04 Rossland Binding Company Remote release snowboard binding
US11040267B2 (en) 2017-03-14 2021-06-22 Stop River Development LLC Processor-controlled sport boot binding
IT202100020519A1 (it) * 2021-07-30 2023-01-30 Petrarca’S Ideas Innovative Startup Srl Attacco per sci e procedimento di aggancio o sgancio di uno scarpone da detto attacco
US11696615B2 (en) 2019-02-25 2023-07-11 Stop River Development LLC Safety mechanism for use with snow sport boot and binding system

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120074670A1 (en) * 2010-09-28 2012-03-29 Skis Rossignol Boot-Attachment Device on a Ski with Safety Interface
US8585074B2 (en) * 2010-09-28 2013-11-19 Skis Rossignol Boot-attachment device on a ski with safety interface
WO2012170935A2 (fr) * 2011-06-10 2012-12-13 Action Sports Junkie Fixation déclenchable pour snowboard
WO2012170935A3 (fr) * 2011-06-10 2013-02-14 Action Sports Junkie Fixation déclenchable pour snowboard
US9126098B2 (en) 2011-06-10 2015-09-08 Thomas A. Trudel Releasable snowboard binding
US9526971B1 (en) * 2015-09-18 2016-12-27 Rossland Binding Company Remote release ski binding
US20180264348A1 (en) * 2017-03-14 2018-09-20 Stop River Development LLC Processor-controlled Snow Sport Boot Binding
US10569155B2 (en) * 2017-03-14 2020-02-25 Stop River Development LLC Processor-controlled snow sport boot binding
US11040267B2 (en) 2017-03-14 2021-06-22 Stop River Development LLC Processor-controlled sport boot binding
US11110337B2 (en) 2017-03-14 2021-09-07 Stop River Development LLC Processor-controlled snow sport boot binding
US11596855B2 (en) 2017-03-14 2023-03-07 Stop River Development LLC Sensor-connected processor-controlled snow sport boot binding
US10729968B2 (en) 2018-05-25 2020-08-04 Rossland Binding Company Remote release snowboard binding
US11696615B2 (en) 2019-02-25 2023-07-11 Stop River Development LLC Safety mechanism for use with snow sport boot and binding system
IT202100020519A1 (it) * 2021-07-30 2023-01-30 Petrarca’S Ideas Innovative Startup Srl Attacco per sci e procedimento di aggancio o sgancio di uno scarpone da detto attacco
EP4124368A1 (fr) * 2021-07-30 2023-02-01 Petrarca's Ideas - Innovative Startup Srl Fixation de ski et procede de connexion ou de deconnexion d'une chaussure de ski avec/de ladite fixation

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FR2927818B1 (fr) 2011-09-09
FR2927818A1 (fr) 2009-08-28
EP2095853A1 (fr) 2009-09-02

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