Classifications

• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
  • A63C9/00—Ski bindings
  • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
  • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
  • A63C9/08557—Details of the release mechanism
  • A63C9/08564—Details of the release mechanism using cam or slide surface
• • 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
  • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
  • A63C9/08535—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a mobile body or base or single jaw
  • A63C9/0855—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a mobile body or base or single jaw pivoting about a vertical axis

Definitions

• the subject of the present invention is a fastening element for a boot on a sliding board, in particular an alpine ski
• Fixing systems of a boot on a ski generally consist of a front element, commonly called abutment and a rear element, commonly called heel, provided to hold the front respectively and the heel of the boot on the ski.
• This support is provided by a movable jaw, carried by a body and returned to its position for retaining the boot on the ski thanks to the action of a tension spring housed in the body.
• the boot is released from the ski when the stresses it exerts on the jaw are greater than the force that the tension spring imposes on said jaw to maintain it in the boot retaining position.
• the minimum force exerted on the jaw by the shoe and allowing its release is generally called the triggering threshold and determines the hardness of the fastening element.
• This triggering threshold is given by the tension of the spring, which is adjusted beforehand and generally remains constant during skiing.
• the stop is provided to release the front of the boot when the latter urges the jaw by an excessive force and lateral to the ski, generated for example during a twist of the leg.
• the heel piece is designed to release the heel of the shoe when the latter exerts a stress from bottom to top greater than the restoring force of the jaw. This kind of stress occurs for example during falls forward.
• the knee is more fragile at an internal torsion of the leg that during an external torsion Or.
• the threshold is the same whatever the biasing direction of the At shoe of a fall with twisting the leg inward, so the stop may not release the boot and thus cause trauma to the knee.
• Patent No. 2718048 proposes a mechanism for a stop whose threshold of
• trigger increases in response to an increase in the support force of the sole of the boot on the ski, so that the trigger threshold is lower when the skier's quadriceps is slightly contracted, and standard when the skier's quadriceps is contracted so when the knee is protected
• the mechanism consists of a movable feeler on which the sole of the shoe rests.
• This feeler is connected to the tension spring of the stopper by a link making it possible to increase the tension of the spring in response to an increase in the force of support of the sole
• the tension of the spring is preset to impose on the stop a triggering threshold lower than the standard threshold
• the mechanical principle of this system means that the response is not always instantaneous and therefore prevents from lowering the preset trigger threshold and optimize skier safety
• the jaw of a stopper generally consists of a sole clamp designed to prevent the front of the boot from moving away from the ski in a vertical direction and two fins allowing lateral support
• the jaw can be in one piece
• the fins and the sole clamp are integral and the entire jaw is in motion when triggered
• the jaw can consist of two independent fins and a fixed sole clamp, or mobile and independent of the fins, or even formed of two parts each integral with a fin. In this case, one or the other of the fins in motion during lateral release
• Patents Nos. 2733431 and 2732899 describe systems making it possible to obtain a stop whose trigger threshold is different depending on whether the shoe is biased inward or outward with the possibility of selecting the trigger direction the most flexible and the direction of the hard trigger These systems adapt that certain types of stops whose jaws have independent fins
• the purpose of the present invention is to improve the functioning of existing fasteners by providing a mechanism that may find particular application for each type of use Ton made
• Another object of the invention to provide a simple and easy mechanism to achieve 40
• a first use makes it possible to increase the hardness of the stop instantly in response to an increase in the support force of the sole.
• the instant response due to the design of the mechanism, therefore allows 4s to lower the trigger threshold as much as possible.
• a second use allows manual switching from a high trigger threshold to a low trigger threshold and vice versa, without being forced to use a tool
• a third use makes it possible, in the case of certain one-piece jaw stops, to obtain a different hardness depending on the triggering direction with the possibility of selecting the most flexible triggering direction and the hardest triggering direction. This allows the skier to swap skis and adapt their bindings for better safety
• the fastening element according to the present invention consists on the one hand of a basic fastening system holding the boot on the ski thanks to a primary return mechanism, and on the other hand of a secondary return mechanism acting on the basic attachment system to modify the triggering threshold
• the basic attachment system is provided with a conventional part consisting on the one hand of a feeler intended to receive the sole of the shoe, and d on the other hand, a movable jaw, intended to hold the boot on the ski.
• This jaw is carried by a body connected to a base fixed to the ski.
• the body houses a primary return mechanism consisting of at least one tension spring acting on a locking member for holding the jaw in its shoe retaining position with a minimum elastic restoring force
• the invention resides in the fact that an intermediate piece is connected to the jaw by the primary return mechanism so that when the jaw moves away from its position for retaining the shoe, it drives the intermediate piece with an imposed force.
• a secondary return mechanism can subject the intermediate piece to a force contributing to maintain it in a position of equilibrium which is its when the jaw retains the shoe, so as to increase the triggering threshold of the fastener 0
• the action of the secondary biasing mechanism on the intermediate part is lower than the jaw driving action s
• the intermediate piece is then driven by the jaw when tripping
• the force exerted by the secondary return mechanism on the intermediate piece therefore contributes to proportionally increasing the return force of the jaw in the shoe retaining position initially generated by the primary return mechanism 0
• the second case the action of the secondary biasing mechanism on the intermediate part is lower than the jaw driving action s
• the action of the secondary biasing mechanism on the intermediate part is stronger than the jaw driving action
• the intermediate part then remains motionless when tripping
• the action of secondary biasing mechanism allows the intermediate piece has to contribute to returning the jaw in S of the shoe retaining position a force equal to the driving force of the intermediate member by the jaw and processed by the primary biasing mechanism Any increase in the force exerted by the mechanism of secondary reminder on the intermediate piece therefore has no influence on the triggering threshold of the fixing element which is then maximum It would be logical for the primary return mechanism to be adjusted so that this maximum threshold is the standard threshold for a conventional fastening element
• a first possibility consists in using a force transmission system connected to the feeler and acting on the intermediate piece to maintain it in a position of equilibrium with a force increasing with the bearing force of the sole of the shoe on the feeler. triggering threshold of the fastening element then increases with the bearing force of the sole to a maximum value which is hers when the bearing force of the sole is large enough to lock the intermediate piece in position d 'balanced
• a second possibility consists in using a movable blocking member, 5 by manual intervention, between a blocking position of the intermediate piece and an inactive position.
• the fastening element therefore has two trigger thresholds a minimum when the member hold is inactive and a maximum when it blocks the intermediate piece in its equilibrium position
• a third possibility, suitable for certain monobloc jaw stops 0, consists in using a device which can act on the intermediate piece to block it in its equilibrium position only during a lateral release in one direction.
• the stop has a threshold of different triggering depending on whether the shoe is loaded inward or outward
• the device is movable, thanks to manual intervention, between a position in which it blocks the intermediate piece only when it is biased towards inside, a position in which it locks the intermediate piece whatever the direction of the biasing and a position in which it locks the intermediate piece only at a biasing outwards
• Figure 1 shows in plan view, a ski binding element.
• Figure 2 shows the same system seen from the side, in elevation
• Figure 3 is an enlarged partial section, along the arrows AA of ⁇ Figure 1, and showing the basic attachment system of the fastener.
• Figures 4 to 6 are enlarged partial sections according to arrows B-B of Figure 2. showing the mobile part of the system base fastener respectively when the latter is in the retaining position of the shoe, during a triggering when the intermediate piece is blocked and during a 0 triggering during which the intermediate piece is driven by the jaw
• FIG. 7 is an enlarged partial section, according to the arrows AA of FIG.
• FIG. 1 shows a variant of execution the basic fastening system according to the invention, suitable for the stops is mobile and articulated body at least 5 laterally with respect to an axis
• Figure 8 is an enlarged partial section along the arrows B of Figure 2 and illustrating the system base clip shown in Figure 7
• FIG. 9 illustrates a variant of the basic attachment system according to the invention and adapted to certain stops with fixed body, by a partial section enlarged according to the arrows AA of FIG. 1
• FIG. 10 is a partial section enlarged, according to the arrows BB in FIG. 2 and representing the basic attachment system illustrated in FIG.
• FIG. 11 is a partial section enlarged, following the arrows AA in FIG.
• FIG. 12 is a partial section along the arrows DD of FIG. 11 and representing the upper part of the intermediate piece
• FIG. 13 is an enlarged partial section , following the arrows AA in FIG. 1 and illustrating the secondary return mechanism increasing the hardness of the fastening system in response to an increase in the support force of the sole of the shoe and adapted to the s ysteme illustrated in FIGS. 3 to 6
• FIG. 14 is an enlarged partial section, following the arrows AA in FIG. 1 and illustrating the secondary recall mechanism making it possible to manually switch between a low trigger threshold and a strong threshold and suitable for the system illustrated in FIGS. 3 to 6, FIG.
• FIG. 15 is a partial top view of the mechanism illustrated in FIG. 14, FIG. 16 is an enlarged partial section, according to the arrows CC in FIG. 2, showing the secondary return mechanism allowing '', on the attachment system illustrated in Figures 3 to 6, different trigger thresholds depending on the direction of the stress, with the possibility of selecting the direction for which the trigger threshold is lowest and that for which the threshold is the strongest,
• Figure 17 is a partial section along the arrows EE in Figure 16
• Figure 18 is an enlarged partial section along the arrows AA of Figure 1 and illustrating the secondary return mechanism increasing the hardness of the fastening system in response to an increase in the support force of the sole of the shoe and adapted to the system illustrated in Figures 7 and 8
• Figure 19 is an enlarged partial section, following the arrows CC in FIG.
• FIG. 20 is an enlarged partial section along the arrows CC in Figure 2, showing the secondary biasing mechanism pemnettant to obtain, on the fastening system illustrated in figures 7 and 8, different triggering thresholds in the direction of the load, with the possibility of selecting the direction for which the trigger threshold is lowest and that for which the trigger threshold is strong figure 21 is a cross-section partial enlarged, following the arrows AA of FIG. 1 and illustrating the secondary return mechanism increasing the hardness of the fastening system in response to an increase in the support force of the sole of the shoe and adapting to the system illustrated in FIG.
• FIG. 22 is an enlarged partial section, along the arrows CC of ia Figure 2 and illustrating the secondary return mechanism for switching manually between a low trigger threshold and a strong threshold and adapted to the system illustrated in FIG. 11,
• FIG. 23 is an enlarged partial section, according to the arrows AA in FIG. 1 and illustrating the mechanism represented in FIG. 22
• the basic fastening system T is illustrated in FIGS. 1 to 6 It consists of a feeler 2 intended to receive the sole of the boot, and of a body 6 connected to a base 3 fixed to the ski
• the body 6 carries a shoe retaining jaw 7, movable between a retaining position and a shoe release position II houses a primary return mechanism formed by a tension spring 8 acting on a locking member 9 to hold the jaw 7 in its shoe retaining position with an elastic restoring force
• An intermediate piece (4, 25) is connected to the jaw by the primary return mechanism, so that when the jaw deviates from its retaining position the shoe, it drives the intermediate piece with a force depending on the tension of the spring 8
• the body 6 is integral with the jaw 7 pivoting about a cylindrical axis 5, fixed vertical and the intermediate part consists of a hand of a sleeve 4 rotating about axis 5, and secondly, 'a movable part 25
• This movable part has the shape of a U, the central part of which is parallelipipedic and the two lateral branches of which take hold on two lateral and diametrically opposite flats of the sleeve 4 so as to be able to drive the latter in a movement of rotation about the axis 5
• the sleeve 4 has a light allowing the central part of the moving part 25 to be in contact with a flat 5a of the axis 5
• the jaw-sheath-movable part assembly is kept in its equilibrium position with an elastic restoring force depending on the tension of the spring 8 and on the width of the moving part-axis contact.
• This equilibrium position obviously corresponds for the jaw (7) has its shoe retaining position
• the lower part of the sheath is adapted to the secondary return mechanism used
• Device A illustrated in Figure 13, consists of a system of force transmission between the probe 2, mobile, the sheath 4, so that said sheath and consequently the moving part 25, are held in the equilibrium position with a force increasing with the force F of support of the sole on the feeler 2
• This force transmission system consists of a lever 26 carrying the probe 2 and articulated around a transverse horizontal axis 27, supported by the base 3 fixed to the ski The front end of the lever is provided with a ball 29
• the sleeve 4 has a bore allowing its pivoting around the axis 5 as well as its sliding on the same axis II abuts in its sliding movement upwards on a flange secured to the axis 5
• the ball 29 When the jaw is in the shoe retaining position, the ball 29 is housed in a conical hole 4a located under the sheath The ball exerts on the sheath a push from bottom to top countered by the collar and which increases with the force F d support of the sole on the feeler
• the sheath 4 and the moving part 25 are maintained in their equilibrium position with a force proportional to the force F (without taking account of the friction forces), and depending on the slope of the conical hole 4a as well as the position of the axis 27 Consequently, as long as the moving part-sheath assembly is driven by the jaw when the latter deviates from its position for retaining the shoe, the triggering threshold increases with F (figure 6)
• the jaw 7 pivots around said assembly when it is released ⁇ figure 5)
• the hardness of the fastening element is then maximum and given e by the tension of the spring 8 as well as the width of the locking member-moving part contact
• the sleeve is locked in permanence
• the fastening element has two trigger levels, a low when the support force of the sole is almost zero (F less than the force imposed by the elastic element to move the ball away from its housing), and a strong the shoe presses on the probe (F greater than the force imposed by the elastic element to move the ball away from its housing)
• Device B shown in Figures 14 and 15, consists of a pull tab 10 guided in a guide 17 integral with the base 3
• the inner part of a manual knob 1 1 has a parallelepipedal form and is housed in a through hole
• This hole of the pull tab is provided for the manual operation is permitted that a movement along a vertical axis relative to the pull tab be controlled manually, on the other hand consists of a top part 15 wider sufisamment to be easily operable manually an elastic member 12 fixed to the drawer, support from top to bottom on a collar secured to the handwheel to the recall down so that its lower portion can extend beyond the bottom of the pull tab and lodge in the one or the other of two recesses 13 or 14 situated on the base 3 and in the slide fastener 1 7 zipper 10 is then locked in an equilibrium position by pulling the manual knob 1 1 upward with a force greater than the restoring force of the elastic member 12.
• the lower portion of said manual control deviates from the recess in which it was received, so that the pull tab is freely movable
• the sheath 4 has a notch
• the pull tab is in the equilibrium position defined by the hole 13, closest to the sheath, its end is housed in the notch so as to block the sheath 4 and therefore the movable part 25 because the force exerted by the sheath on the pull tab when triggered is perpendicular to the axis of the pull tab
• the trigger threshold is then maximum
• the pull tab 10 is found in the other equilibrium position, its end is outside the notch, so that the pull tab has no action on the sheath
• the trigger threshold is then minimum
• the device C according to FIGS. 16 and 17 consists of a slide 26 whose axis is transverse to the ski.
• a pull tab 21 guided by the slide 36 carries a manual control 22, similar to that of the device B, so as to be able to move the pull tab 21 from one equilibrium position to another
• These equilibrium positions are defined by three recesses (23, 24, 55) located under the slide 36 and blocking the pull tab according to the principle of the device B
• the lower part the sleeve is adapted to the device C it is cut by a transverse vertical plane so as to form a hollow semi-cylinder
• the lower part of the axis 5 is also cut along the same plane
• the zipper 21 is provided with two pins 28a and 28b, placed on a transverse horizontal axis and projecting towards the sheath 4
• the slide 36 and the recesses (23, 24, 55) are placed so that when the lower part of the manual control 22 is housed in the hollow of right e, the left nipple is opposite the right edge
• the sheath-moving part assembly is blocked when the shoe is pressed to the left and free when the shoe is pressed. the shoe to the right Consequently the trigger threshold to the left is higher than the trigger threshold to the right
• the lower part of the manual control is in the hollow on the left, the right nipple is opposite the left edge of the half cylinder and almost in contact with it
• the fastening element is harder to release during a stress to the right than to the left
• the hollow in the middle blocks the zipper 21
• the pins 28a and 28b are in front and almost in contact with the left and right edges of the sheath the sheath-piece movable assembly is then blocks whatever the direction of the bias of the boot, so that e the trigger threshold is the same during a request to the right or to the left
• the abutment In addition to the probe 2 provided to receive the sole of the shoe, the abutment consists of a retaining jaw 7, extended at the front by a body integral with said jaw 6. The assembly is articulated at least laterally around a fixed axis 5 The upper part of the intermediate piece 40 is 97/38765 PC17FR97 / 00639
• the jaw-intermediate piece assembly is kept in its equilibrium position with an elastic restoring force depending on the tension of the spring 8 as well as on the spacing between the two gutters.
• This equilibrium position obviously corresponds for the jaw (7) in its shoe retaining position
• Figures 9 and 10 illustrate the basic attachment system which will be referred to by the letter Y, and which is close to the X system but suitable for certain fixed body stops
• the probe 2 provided to receive the sole of the shoe, it is constituted by a fixed body 6, which partially houses a locking member 9 which passes through the rear face 130 of the body said locking member is retained al rear by the jaw 7 holding the boot on the ski and articulated at least laterally around the rear face 130 of the body 6
• a tension spring 8 recalls the locking member 9 towards the front
• This latter drives the jaw 7 whose front face plates the intermediate piece 41 on the rear face of the body 6
• the front and rear faces of the intermediate piece 41 are each provided with two vertical bosses 41 a, 41b, 41 c, 41d
• the bosses 41 a and 41 b are housed in two gutters of complementary shape and hollow in the rear face 130 of the body 6
• the bosses 41 c and 41d are housed in two gutters of complementary shape cr in the front face of the jaw 7
• the intermediate piece 4 i is then in a position of equilibrium
• Figure 18 illustrates an adaptation of the basic attachment system X to device A
• the lower part of the intermediate piece 40 is provided with a horizontal groove 31 housing a tongue of complementary shape 30 and integral with the fixed axis 5, so that the intermediate piece 40 is retained during a vertical stress It is on the other hand equipped with a conical hole 40c housing the ball 29 of the device A when the jaw 7 is in the shoe retaining position
• the holding force of the intermediate piece 40 in the equilibrium position and generated by the ball 29 increases in response to an increase in the force F pressing the shoe sole on the feeler 2 Consequently the hardness of the stop increases with F as long as the jaw drives the intermediate piece 40 during a movement shoe release
• the jaw pivots around it when triggered
• the hardness is then maximum and depends on the tension of the spring rt 8 as well as the width of the contact between the locking member and the intermediate piece
• Figure 19 illustrates an adaptation of the basic attachment system X to device B
• the intermediate piece 40 is extended downwards by a lug 42.
• the device B is positioned so that the axis of the slide 47 is transverse to the ski and that when the pull tab 10 is in an equilibrium position, a of its sides is in front of the lug and almost in contact with it to block the intermediate piece 40
• the threshold for triggering the stop is then maximum
• the pull tab 10 is in the other equilibrium position.
• the side of the zipper is no longer in front of the lug 42 so that the intermediate piece 40 is free to pivot around one or the other gutters of axes
• the trigger is then minimal
• Figure 20 illustrates the adaptation of the system of base attaches X to the device C
• the lower part of the intermediate piece 40 has a parallelipiped shape.
• the slide and the three recesses (23, 24, 55) located under the slide 36 of the device C are placed so that when the jaw 7 is in the shoe retaining position.
• the left lug 28a is opposite and almost in contact with the right edge of the intermediate piece 40 so that the latter can pivot around from the axis of the right gutter but not around the axis of the left gutter, the stopper is then harder to trigger in one direction than in the other
• the two pins 28a and 28b are opposite and almost in contact with the right and left edges of the intermediate piece, so as to block it in any direction of shoe stress and obtain a hardness of the stop independent of the direction of stress
• the basic attachment system Z illustrated in FIGS. 1 1 and 12 generalizes the invention to many heels and stops with fixed body.
• a primary spring in tension 8a acts on a locking member 1 10, sliding longitudinally in the body and recalling the jaw 7 in the shoe retaining position with an elastic restoring force provided by the tension of the spring 8a
• the locking member 1 10 causes the jaw, then slides into the body 6 against the action of primary spring 8a
• the peculiarity of the system described resides in the fact that a secondary tension spring 8b is supported on an element integral with the locking member 1 10 to press an intermediate piece 1 16 against another element integral with said locking member
• the intermediate piece is in position equilibrium when the jaw is in the shoe retaining position of the jaw deviates from its retaining position, it causes the intermediate piece 1 16 into a sliding movement, through the locking member 1 10, with a force equal to the tension of the secondary spring 8b
• the upper part of the intermediate part is close to the vertical it pivots about a transverse horizontal axis 109 fixed to the body portion of the locking member 1 10 housed in the body 6 is formed by different diameters of coaxial cylinders, the upper part of the intermediate piece is provided with an oblong hole, so that it can be crossed by all of these cylinders except that of larger diameter, one end of which forms the step 1 1 1 abuts on the intermediate piece
• the secondary spring voltage 8b supports a side on the cap 140, secured to the spring adjusting screw which is screwed to the locking member the other end 8b of the secondary spring presses the vertical portion of the intermediate piece 1 16 to press it against the setback 1 1 1
• the jaw can not drive the intermediate piece with a force equal to the tension of the secondary spring 8b unless the push e said secondary spring on the intermediate part is in the direction of sliding of the locking member 1 10 generates a trigger by the intermediate piece 1 16 then has a rotational movement about the transverse horizontal axis 109
• FIG. 21 illustrates an adaptation of the basic attachment system Z to the device A
• the intermediate piece 1 16 is extended downwards by a horizontal part 122
• the elbow 123 between this horizontal part and the vertical part of the part 1 16 is narrowed, so that these two parts can be slightly articulated one by relative to the other
• the horizontal part 122 is located under the body 6
• the ball 29 presses on the conical hole from bottom to top it presses the horizontal part 122 against the body 6
• the intermediate piece 1 16 is therefore kept in its equilibrium position with a restoring force increasing with the force F of pressing the sole on the feeler 2
• this restoring force is less than the tension spring is condaire 8b
• the intermediate piece is driven by the locking member 1 10 during a triggering and pivots about its axis 109
• the triggering threshold then increases with F When F is large enough to block the intermediate
• FIGS 22 and 23 illustrate the adaptation of the basic attachment system Z to the device B
• the lower part 120 of the intermediate piece 1 16 is in the form of a horizontal tongue extending under the sole of the shoe It is equipped with a transverse notch 121
• the axis of the slide 37 of the device B is transverse and the two recesses 33 and 34 located under the slide are placed so that when the pull tab 10 is in one of the two equilibrium positions and when the jaw is in the shoe retaining position, the end of the pull tab is received in the notch 121 for locking the intermediate piece 1 16 trigger threshold is then maximum when the pull tab is in the other position of equilibrium, the pull tab is out of the indentation and n 'has no action on the intermediate piece 1 16 the trigger threshold is minimum
• C device can be adapted to the attachment of Z that the movement of the intermediate piece 1 system 16 during a trigger is independent of the tripping direction Thus, it is impossible to act on the intermediate part during trigger in one direction and do not act when triggering in the other direction

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• Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Applications Claiming Priority (9)

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• 1996
  • 1996-11-21 FR FR9614494A patent/FR2747317B3/fr not_active Expired - Fee Related
• 1997
  • 1997-04-10 WO PCT/FR1997/000639 patent/WO1997038765A1/fr not_active Application Discontinuation
  • 1997-04-10 EP EP97918200A patent/EP0909203A1/de not_active Withdrawn

Non-Patent Citations (1)

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