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
  • A63C5/06—Skis or snowboards with special devices thereon, e.g. steering devices
• • 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
  • A63C5/03—Mono skis; Snowboards
  • A63C5/033—Devices for enabling the use of a normal ski as mono-ski, e.g. platforms fixed on the ski for supporting the ski boots side-by-side
• • 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
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
  • B62B13/00—Sledges with runners
  • B62B13/02—Sledges with runners characterised by arrangement of runners
  • B62B13/04—Sledges with runners characterised by arrangement of runners arranged in a single line
  • B62B13/046—Sledges with runners characterised by arrangement of runners arranged in a single line with steering devices

Definitions

• the present application relates to a steering device for a pair of skis or a surfboard, especially for snow.
• a known device is to take the principle of the bicycle by fixing a first rigid surfboard and of substantially reduced dimensions to the fixed rear portion of a frame equipped in its front portion of a steering column surmounted by a handlebar.
• the lower end of this steering member is equipped with a second board, generally of smaller dimensions than that fixed on the rear. It is known that this equipment does not really reproduce the dynamic behavior of a bike or that of a snowboard and its size is a major drawback. Moreover, it does not reproduce the twisting conventionally imposed on a surfboard or a ski.
• the object of the present invention is to provide a device for controlling a pair of skis or a snowboard, particularly for snow, by simply rotating and tilting together a single steering member such as a handlebars, simultaneously by lateral inclination and longitudinal warping. It therefore combines the necessary mechanical features of a pair of conventional bindings with the ease of use of a bicycle and does not require a specific surfboard or pair of skis. It allows you to move freely on the snow by driving with both feet held but not locked, or to use a foot to push on the flat and stabilize. Finally it folds instantly for easy handling and storage.
• This device is fixed indistinctly, by means of screws or conventional inserts and through at least one mounting base, on a large number of gliding supports used to move on different terrains, including the snow.
• the device is described below for a pair of ski or a snowboard, in a non-limiting manner.
• This device for controlling a pair of skis or a snowboard, especially for snow comprises a first zone z of fixing the feet, located substantially on a first half of the board / pair of skis, preferably located mostly in the second fifth of the board / pair of skis, and composed in particular of screw inserts or integrated supports that can receive screws, arranged on either side of an axis A traversing longitudinally the board / pair of skis.
• skis in the center of gravity the perpendicular of the board / pair of skis with the axis A at the zone z forming a first plane P; a second zone for fixing the feet z 'identical to the first, located substantially on the second half of the board / pair of skis, preferably located mainly in the fourth fifth of the board, the perpendicular of the board / pair of skis with the axis A at the zone z 'forming a second plane P'.
• a first connecting element integral with the board / pair of skis by a first end and a first base at the zone z and constrained at least parallel to the plane P at a point o 'of its second end;
• a second connecting element secured to the board / pair of skis by a first end and a second base at the zone z 'and constrained at least parallel to the plane P' at a point o from its second end;
• a third warp element integral with the connecting element at least at the point o ', of the connecting element at least at the point o, and now between the points o and o a fixed and predetermined distance;
• the document FR 2 732 609 describes a snowboard controlled by at least one handle and the document US 2006/197294 describes a device for controlling a foldable ski vehicle operating by gravity.
• - Figure IA shows a general perspective view of a pair of skis equipped with an embodiment of the device according to the invention, at rest, and incorporating different elements, axes and plans describing the invention and its kinematics.
• - Figure IB shows a general perspective view of a surfboard equipped with an embodiment of the device according to the invention, at rest, and incorporating different elements, axes and plans describing the invention and its kinematics.
• FIG. 2A shows a perspective view of a pair of skis and its bases according to the invention.
• FIG. 2B shows a perspective view of a surfboard and its bases according to the invention.
• FIG. 3 represents a detailed perspective view of an embodiment of a connecting element.
• FIG. 4 represents a detailed perspective view of an embodiment of another connecting element.
• FIG. 5 represents a general profile view of an embodiment of a warping system and geometric elements governing the kinematics of the invention.
• FIG. 6 shows a detail view in perspective of an embodiment of a removable connector.
• FIG. 7A and 7B each show a perspective view of the principle according to the invention and in two different positions.
• FIGS. 8A and 8B respectively represent a perspective view and a front view of a surfboard equipped with the device according to the invention, and whose control member is mobilized in a counterclockwise direction, generating a warping angle h according to the planes P and R '.
• FIGS. 9A and 9B respectively represent a perspective view and a front view of a surfboard equipped with the device according to the invention, and the steering member of which is mobilized in a clockwise direction, generating a warping angle h 'according to the planes P and R'.
• FIG. 11 represents a perspective view of a variant of the device according to the invention.
• the terms "about” and “substantially” mean within 10%, preferably within 5%.
• a gliding support 1 such as a pair of skis (FIG. 1A) or a surfboard (FIG. 1B) of the same type as those usually found in the trade is equipped with a preferred embodiment of the device according to FIG. The invention.
• the device according to the invention comprises two fixing zones z and z 'feet, shown in Figure 2, each located substantially on an opposite half of the board or ski. These attachment areas are equipped with embedded metal inserts 8 for fastening fasteners by means of screws. These groups of inserts are in general more numerous than the number that can be used by conventional fasteners in order to have a longitudinal adjustment range. Another known method is to integrate integrated reinforcements in the skis for directly attaching appropriate screws. Another known means is to use rails on the sliding support for sliding the or the bases to precisely adjust the location of the latter on said support.
• a first base 2 is conventionally arranged on the first zone z by means of fastening holes 7 and screws (not shown) and collaborating with the inserts 8 as required.
• An axis A passes through the board or the pair of skis 1 longitudinally in its position. middle.
• the base 2 is thus disposed on either side of the longitudinal axis A and has on each side two axle lugs 9 each equipped with a hole 10 of axis, these two holes 10 being coaxial with one another. transverse B axis.
• the base 2 is dimensioned and made of a resistant material such as metal or composite fibers to withstand the stresses to which it is subjected while keeping a weight and a congestion contained. Its width on the board or the pair of skis 1 allows inter alia to engage the foot easily.
• a base is preferably equipped with means anti ⁇ slip on its upper part in order to obtain a better grip of the foot while allowing relatively free of its engagement and its precise positioning.
• a second base 2 'identical to the first base 2 is arranged in the same way at the second zone z' of the board or the pair of skis 1 and defines in the same way a transverse axis C and parallel to the B.
• the base 2 ' is disposed on either side of the longitudinal axis A and has on each side of two lugs 9' of axis equipped with a hole 10 'of axis, these two holes 10 'being coaxial along the transverse axis C.
• the bases 2 and 2 ' are not identical.
• the bases 2 and 2 secure, by means of screws not shown, the two skis together, imposing them a spacing and a predetermined alignment .
• the device according to the invention will indiscriminately mobilize them as a unitary assembly, especially for longitudinal torsion stresses.
• the pair of skis formed is similar to a surfboard cut in its length along the longitudinal axis A.
• a user can place a first foot on the first zone z and a second foot on the second zone z ', preferably one foot on a first half of the board or the pair of skis and another on the second half of said support of gliding. For this reason and even more preferentially, by dividing the board or the pair of skis according to the length into five successive parts of the same length, the majority of the support surface of the first foot on the board or pair of skis 1 is located in the second part of the board or the pair of skis and the majority of the support surface of the first foot on the board or the pair of skis 1 is located in the fourth part.
• a second plane P ' is also defined perpendicular to the upper face of the board or the pair of skis 1 and to the axis C at the zone z'.
• h the angle between the planes P and P '.
• a first connecting element 4, shown alone in FIG. 4, is pivotally connected to the base 2 at the zone z by a first low end 15, in particular by means of removable pins 11 such as screws or pins, and arranged coaxially with the axis B.
• the end 15 may form a housing for engaging the rear foot of a user in a form of "U" inverted.
• the width of the end 15 is dimensioned so as to withstand lever stresses exerted on either side of the longitudinal axis A on the connecting element 4.
• the second end 17 of the connecting element 4 is of particular tubular and hollow shape, forming a cylindrical housing 18, and equipped with a radial axis hole 19 collaborating with a removable axis such as a pin 20.
• the main body 16 of the connecting element 4 of a shape and a predetermined length, securely connects the two ends 15 and 17 together. Its shape is asymmetrical according to the preferred embodiment and the plane P, to allow to bypass the legs or the pelvis, a user standing normally upright and straight on the board or the pair of skis 1. In addition, in case of pronounced bending of the legs, during a jump reception in particular, it is important to avoid any contact with the structure of the machine.
• the connecting element 4 is therefore not rectilinear in the embodiment preferential. According to one embodiment, considering a reference plane containing the axis A and the point o ', more than 75% by volume of the connecting element 4 is located on one side of the reference plane.
• the body 16 of the connecting element 4 is positioned on one side or on the other side of the user's legs.
• the fastening elements of the connecting element 4 to the board or the pair of skis 1 are adapted to allow the connecting element 4 to be mounted on one side of the reference plane or the other. side of the reference plane.
• This connecting element 4 can pivot freely (as shown for example in FIG. 7A) around the axis B when it is not constrained by other elements. It remains always constrained parallel to the plane P.
• the distance that can separate the end 17 of the plane P is predetermined and constant.
• the overall dimensioning as well as the construction materials of the connecting element 4 are such as to maintain this predetermined distance and best withstand any lateral bending stress. It is made in particular of aluminum profile or composite fibers to combine strength and lightness.
• the width of the end 15 is dimensioned so as to withstand lever constraints exerted on either side of the longitudinal axis A on the connecting element 4.
• a second connecting element 3, shown alone in FIG. 3, is pivotally connected, by means of removable pins 11 such as screws or pins arranged coaxially along the axis C, to the base 2 'at the level of the zone z ', by a first end 12 low, including a housing for engaging the other foot of the user.
• a cylindrical second high end constitutes a male shaft 14, and serves as an axis of rotation along a warp axis E.
• This shaft 14 is equipped on either side with two retaining rings 13. These rings are fixed by appropriate means not represented.
• the connecting element 3 can pivot about the axis C when it is not constrained by other elements (as is for example represented in FIG. 7A). It always remains constrained parallel to the plane R '.
• the center of gravity of the shaft 14 is materialized at a point o.
• the warp axis E is coaxial with the shaft 14 and parallel to the plane P '.
• a point x represents the point of intersection between the axis C and the axis E.
• the overall dimensioning as well as the construction materials of the connecting element 3 are such as to maintain this predetermined distance and best resist any constraint lateral flexion.
• the connecting element 3 is constrained parallel to the plane R '. It is made in particular of aluminum profile or composite materials to combine strength and lightness.
• the width of the end 12 is dimensioned so as to withstand lever stresses exerted on either side of the longitudinal axis A on the connecting element 3.
• the respective lower parts 15 and 12 of the connecting elements 4 and 3 are in particular in the form of a left or right “L”, or even an inverted “T” shape, these shapes then replacing the form described in " U "inverted according to the preferred embodiment.
• a buckling element 5, described in connection with FIGS. 1, 5 and 7, has a hollow cylindrical hollow bottom end 21 which serves as a bore.
• the center of gravity of the end 21 is located on the point o. It is recalled that the warp axis E passes through the point o. He crosses the C axis at a point x.
• This axis E is coaxial with the cylindrical shape of the end 21 which cooperates judiciously in diameter and length with the male shaft 14 of the connecting element 3.
• the end 21 is retained captive without excessive play between the two rings 13 of the connecting element 3. Bearings antifriction not shown can be arranged between the end 21 and the shaft 14.
• the ends 21 and 14 collaborate coaxially with each other over a length sufficient to prohibit any freedom other than the rotation between the connecting element 3 and the buckling element 5 and withstand the axial dissociation constraints.
• This length is ideally between 20 mm and 200 mm but is greater than 10 mm, depending on the materials chosen.
• the distance separating the points o and x is also sufficient to withstand the axial dissociation stresses and is ideally between 20 mm and 200 mm but is greater than 10 mm, depending on the chosen materials.
• the main body 22 of a suitable shape and length is equipped with a cylindrical cage 23 antifriction, disposed at a predetermined distance from the point x.
• This cylindrical cage 23 determines in its center of gravity a point o '.
• An axis of rotation D passes through points o 'and x.
• the axes E and D describe between them a predetermined hunting angle g.
• This cylindrical cage 23 is fixed on the main body 22 by means not shown such as screws or rivets, allowing the need to adjust the position in height.
• the warping element 5 is also equipped at its other end, according to the embodiment described, a control member 24 such as a handlebar, provided with two gripping members 25 such handles.
• the center of gravity of the gripping members 25 defines a point k.
• the control member 25 may be adjustable in height with respect to the main body 22 of the bending element 5 through which it can slide.
• a detachable retaining element 6 shown in FIG. 6 is made integral with the cylindrical cage 23 by means of a ring 26 which is captive there.
• the inner diameter of the ring 26 is substantially greater than the outside diameter of the cylindrical cage 23.
• the ring 26 can rotate freely but can not perform any translation movement along the main body 22.
• the removable retaining element 6 also has a mandrel 27 located in a radial extension of the ring 26.
• the mandrel 27 is appropriately sized so that it can collaborate with the cylindrical housing 18 of the connecting element 4.
• a pin housing 28 extends the mandrel 27 and collaborates with the pin 20 of the connecting element 4.
• the retaining element can therefore be pivotally connected to the upper end 17 of the connecting element 4.
• a return axis F goes through the points k and x.
• An axis of rotation D passes through the points x and o 'and determines the axis of the possible rotation of the buckling element 5 by means of the control member 24.
• This torque effect is balanced on the axis F and is countered by the action of the user on the control member 25 to maintain its balance and its trajectory.
• the offset distance d1 separating the point o 'of the axis F conditions the general equilibrium of the driving forces between lateral inclination and axial rotation of the control member 25 through the warping element 5.
• This distance is preferably between 10 mm and 200 mm, more preferably between 40 mm and 120 mm, and even more preferably between 60 mm and 100 mm.
• the point o ' is made indissociable and at a fixed and predetermined distance from the connecting element 4.
• the point o is at a zero or predetermined distance from the plane P and the point o 'is at a zero or predetermined distance from the plane P'.
• the object of the invention is to impose a shift of the point o with respect to the plane P and / or an offset of the point o 'with respect to the plane P' by means of a mobilization of the buckling element 5, in particular by a rotational movement along the axis D through the control member 24; the distance separating the points o and o 'being fixed and predetermined.
• the locking function described below is provided without removable pin insert but a single molded piece, pivoting around the end 17 and having the pins necessary to attach to a fixed axis disposed at through holes 19 of said end.
• the warping element 5 is integral with the connecting element 3, but has at least a freedom of movement in rotation along the axis E with respect to the connecting element 3, independently of the connecting element 4 which is not connected to the buckling element 5 in FIGS. 7A and 7B.
• This displacement is possible in both directions, clockwise and counter ⁇ schedule, according to a minimum angular sector of at least 2 °, preferably at least a few degrees, in particular 5 °, more preferably at least 20 °. In the preferred embodiment illustrated in both FIGS. 7A and 7B, it is easy to understand that this possible sector is 360 °.
• a low angular freedom of the control member 24 can be compensated by a higher value of the hunting angle g for the same warping effect on the board or the pair of skis 1, but at the cost of greater effort on said steering body.
• the deformation by warping effect on the board or the pair of skis 1 will be proportional to the value of the hunting angle g predetermined value separating the two axes D and E.
• the value of g characterizing the angle between the axes E and D is at least 2 °, preferably at least a few degrees, in particular 5 °, more preferably at least 10 ° °, to ensure a perceptible torsional effect, and is preferably between 10 ° and 40 °, and even more preferably between 20 ° and 30 °.
• the point o would be on the axis of rotation D and its radial displacement would be zero.
• the surfboard or the pair of skis 1 would in this case suffer no torsional deformation along the axis A.
• the point o and the axis E are common ( Figures 1, 3, 5) to the connecting element 3 and the distortion element 5 characterizing their axial solidarity, as shown in particular in Figures 7A and 7B.
• the rotation in a counterclockwise direction of the control member 24 creates a warping angle h between the planes P and P ', characterizing the warping inducing a turn to the left of the board 1, as shown in the figures 8A and 8B.
• the rotation in a clockwise direction of the control member 24 creates a warping angle h 'between the planes P and P', characterizing the warping inducing a turn to the right of the board or the pair of skis 1, as is shown in Figures 9A and 9B.
• the warping angle h characterizes the amplitude of the warping effect on the board or the pair of skis 1, regardless of the distance separating the points o and x, because it is the value of the hunting angle g. which determines this amplitude.
• the user resists this force by means of the gripping members 25 such as a pair of handles whose center of gravity is materialized by the point k in Figure 1.
• This resistance is exerted by a lever effect along the axis of return F passing through the points k and x as shown in Figures 1 and 5.
• This Leverage is proportional to the distance between the points k and x.
• the connecting element 4 is substantially rectilinear and parallel to the plane P.
• the user's legs are then arranged on either side of the connecting element 4.
• the retaining element 6 remains integral with the connecting element 4 and is dissociable by the user of the warping element 5.
• the point o 'and therefore the cage cylindrical 23 are offset from the main body 22 to the rear by means of suitable supports and fixed to the main body 22. According to this arrangement the main body 22 is no longer coaxial with the axis of rotation D. The distance dl being nevertheless maintained, the operation and the kinematics of the invention are not modified thereby.
• At least one section made in particular of aluminum or composite materials is fixed in particular by means of screws on the ski or the surfboard at a zone for fixing feet z.
• This profile is provided with at least one rail preferably on its upper part.
• the profile then serves as a support for a base 2 provided with holes whose center distance cooperates wisely with the or rails of said profile.
• Fixing means, in particular screws make it possible to firmly connect a profile and a base.
• the base 2 and thus the device being connected thereto are adjustable in the direction of the rail or rails of said profile.
• the assembly is easily removable and allows, in the case of use on a pair of skis, to raise the base vis-à-vis the snow to avoid any accumulation of the latter which would then office of brake.
• the device according to the invention is provided at the level of the board or the pair of skis with a stop-ski type of safety such as those conventionally used for skiing and which are triggered and stop the ski. device when the foot of the user is no longer supported.
• At least one base 2 is replaced by a pair of bases 2A and 2B, each secured respectively to a ski.
• These said bases thus have one vis-à-vis the other of an axial freedom along the axis B but remain fully integral with their connecting element 4 always along the axis B by means in particular of an axis 11 passing right through the four holes 10 of the legs 9 of the pair of bases concerned.
• These bases 2A and 2B are no longer systematically coplanar vis-à-vis each other according to the zone z.
• the same device equips the connecting element 5.
• two bases constituting a pair are made integral with each other by means in particular of a metal screw connecting the two holes 10 of the inner lugs 9 facing each other. The reciprocal axial freedom of the two bases constituting the pair is respected.
• a pair of bases is supported on at least four points parallel to the axis C by a connecting element or a reinforcement adapted to the connecting element and parallel to the axis C.
• each ski has the freedom to interact independently of one another according to the irregularities of the terrain, which is a decisive advantage over the use of the invention on a surfboard.
• the torsional force to be performed on the handlebar is greatly reduced, and the overall curvature of the ski under stress is more homogeneous.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Motorcycle And Bicycle Frame (AREA)
• Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=65201570

Family Applications (1)

Country Status (7)

Families Citing this family (1)

Family Cites Families (8)

• 2018
  • 2018-03-11 FR FR1870265A patent/FR3078633B1/fr not_active Expired - Fee Related
• 2019
  • 2019-03-09 CN CN201980018194.9A patent/CN111836669A/zh active Pending
  • 2019-03-09 WO PCT/EP2019/055936 patent/WO2019175067A1/fr unknown
  • 2019-03-09 CA CA3089680A patent/CA3089680A1/fr not_active Abandoned
  • 2019-03-09 JP JP2020545085A patent/JP2021531050A/ja active Pending
  • 2019-03-09 US US16/979,814 patent/US20210370157A1/en not_active Abandoned
  • 2019-03-09 EP EP19723653.2A patent/EP3765163A1/de not_active Withdrawn

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