EP0340260A1 - Roller skates comprising at least two rollers aligned along a medial plane - Google Patents

Roller skates comprising at least two rollers aligned along a medial plane

Info

Publication number
EP0340260A1
EP0340260A1 EP19880908654 EP88908654A EP0340260A1 EP 0340260 A1 EP0340260 A1 EP 0340260A1 EP 19880908654 EP19880908654 EP 19880908654 EP 88908654 A EP88908654 A EP 88908654A EP 0340260 A1 EP0340260 A1 EP 0340260A1
Authority
EP
European Patent Office
Prior art keywords
chassis
rollers
roller skate
plate
skate according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19880908654
Other languages
German (de)
French (fr)
Other versions
EP0340260B1 (en
Inventor
José MURGA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MURGA, JOSE
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT88908654T priority Critical patent/ATE83941T1/en
Publication of EP0340260A1 publication Critical patent/EP0340260A1/en
Application granted granted Critical
Publication of EP0340260B1 publication Critical patent/EP0340260B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/22—Wheels for roller skates
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/02—Roller skates; Skate-boards with wheels arranged in two pairs
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/04—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs
    • A63C17/06—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/14—Roller skates; Skate-boards with brakes, e.g. toe stoppers, freewheel roller clutches
    • A63C17/1409—Roller skates; Skate-boards with brakes, e.g. toe stoppers, freewheel roller clutches contacting one or more of the wheels

Definitions

  • the present invention relates to a roller skate comprising a chassis, at least two rollers mounted on a lower part of this chassis and aligned one behind the other along a common median plane perpendicular to their axes of rotation, and holding means for fixing the chassis to a foot and to the corresponding leg of a user.
  • the utility certificate FR-A-2 312 11k and the corresponding patent US-A-072 317 describe a shoe of this kind, comprising two relatively wide aligned rollers.
  • Each caster is mounted under the chassis between two parallel arms carrying the ends of its axis.
  • this known assembly requires at least four very rigid arms, as well as roller axles which are relatively large and long enough to carry each caster by two parallel bearings. This construction thus has a fairly significant weight.
  • the arms constitute, on each side of the casters, projecting elements which can strike the ground or various obstacles when skating, which is a source of danger and damage.
  • the patent US-A-18 929 also shows a shoe of the same kind, but provided with two narrow rollers mounted between two vertical plates of the chassis. This structure must also be heavy enough to have the desired rigidity, in particular from the point of view of transverse deformations, and the axes of the rollers are also prominent laterally.
  • the object of the present invention is to provide a shoe of the type indicated in the preamble, arranged so as to avoid the drawbacks mentioned above, in order to allow great freedom of development thanks to its lightness, its stability and the absence protruding side elements.
  • the roller skate according to the invention is characterized in that each of the rollers has two circular cheeks substantially parallel and of the same diameter, and in that these two cheeks are integral with a central hub of smaller diameter which is mounted inside a rolling bearing mounted on the chassis and located in the median plane.
  • the wheels have the general shape of a very narrow coil which can rest on the ground by its two cheeks when it is perpendicular to the ground, or by only one when it is inclined.
  • this coil can be supported only in the vicinity of its median plane, which avoids any protruding mount at the ends of the coil, that is to say on the sides of the pad.
  • each caster can be hollowed out by a central hole axially traversing the entire caster.
  • said lower part of the chassis comprises a central longitudinal plate located in the middle plane and in which the bearings of the two rollers are mounted, this plate being integral with a support plate extending under the foot of the user. .
  • each rolling bearing may comprise an outer ring provided externally with a radial flange mounted with a radial clearance in a groove of the chassis, an elastic material being interposed between this flange and the bottom of the groove to absorb shocks.
  • the rolling bearing can be a ball bearing, the inner ring of which is formed by the hub of the caster.
  • the outer edge of each cheek of the rollers can be covered with an elastomer bandage.
  • a device for braking the rollers is mounted on the central plate of the chassis and comprises braking members mounted in a sliding manner along this plate to come into contact with the rollers, and a central control mechanism.
  • a braking member may include at least one frame sliding comprising a wheel pressed against the central plate of the chassis and arranged to roll on the edge of a cheek of the corresponding wheel.
  • at least one of the rollers can be equipped with a rotation mechanism in one direction to avoid rotation backwards.
  • the holding means comprise a collar arranged to be fixed around the user's leg and connected to the chassis by a rigid mechanism transversely, but articulated with respect to a transverse axis at the level of the user's ankle.
  • fig. 1 is a schematic perspective view of a roller skate according to the invention, fixed to the foot and to the leg of a user,
  • fig. 2 is a front view showing the possibilities of lateral inclination of the skate and the leg
  • fig. 3 is a side view showing the possibilities of longitudinal inclination of the leg when the two skate wheels are resting on the ground,
  • fig. is a schematic perspective view of a reel-shaped caster
  • fig. 5 is a cross-sectional view showing the profile of the skate frame
  • fig. 6 is a side view of this chassis
  • fig. 7 is a cross-sectional view of a preferred embodiment of a caster and its frame
  • fig. 8 illustrates in partial cross-section another embodiment of a caster
  • fig. 9 and 10 represent respectively in side view and in plan a device for braking the rollers
  • fig. 1 1 represents a control cam for the braking device
  • fig. 12 is a side view showing the arrangement of two buffers on the skate frame.
  • Fig. 1 shows a roller skate according to the invention, fixed to one leg
  • the skate comprises a rigid frame 3 supporting the sole of the shoe 2 and equipped, in its lower part, with a front caster •, a rear caster 5, a front stopper 6 and a rear stopper 7.
  • the frame 3 is attached to the shoe 2 using a conventional adjustable strap 8.
  • the skate has a leg support 10 comprising a collar
  • leg 1 intended to be attached around the leg 1 of the user and connected to the chassis 3, on each side of the ankle 12 of the user, by a pair of rigid metal blades 13 and hinged together at 15 at the level of the dowel 12 to allow the collar 11 to tilt with the leg 1 forwards or backwards by pivoting w relative to a transverse axis Y, as shown in fig. 3.
  • a relative lateral tilting of the chassis 3 relative to the leg 1, by a rotation w around the longitudinal axis Z is prevented by the rigidity of the support 10.
  • the leg 1 can still perform a certain pivoting w around its longitudinal axis X inside the collar II, so that the skater can direct the axis 2 of his foot as he wishes.
  • the transverse rigidity of the leg support 10 considerably relieves the efforts to be provided by the skater at the ankle. It also has the effect of maintaining the common median plane of the two rollers and 5 practically in coincidence with the longitudinal axis X of the leg 1 and tilt it laterally with the leg relative to the ground 19, as shown in fig. 2.
  • the angle A between the extreme positions 1 ′ and 1 "of inclination of the leg is very large thanks to the narrowness of the rollers and the absence of projecting lateral elements at the level of the rollers.
  • Fig. 4 shows in perspective the schematic reel shape of the rollers 4 and 5, with two cheeks 20 which are parallel and symmetrical with respect to the median plane and which are rigidly connected by a central hub 21 whose outside diameter is less than theirs.
  • the wheel preferably, but not necessarily, has a central hole 22 which makes it possible to lighten it.
  • Figs. 5 and 6 show more particularly the shape of the frame 3, formed essentially by a horizontal plate 23 supporting the sole 'of the boot and a vertical plate 24 pierced by two large circular openings 25 and 26 for mounting the hubs 21 of the rollers and 5 , the cheeks 20 of each wheel being respecti ⁇ vely on either side of this plate 24.
  • the plate 24 is pierced with holes 27 and 28 for fixing the front buffers 6 and rear 7 with screws, and holes 29 and 30 for mounting a braking device which will be described later.
  • Fig. 7 shows in more detail an advantageous embodiment of a caster 4, 5 and its mounting in the plate 24 of the chassis.
  • the hub 21 and the cheeks 20 of the wheel are made of a single rigid piece, preferably metallic, the periphery of the cheeks being provided with a bandage 32 made of relatively hard elastomer which has a quarter-circle profile.
  • a bandage 32 made of relatively hard elastomer which has a quarter-circle profile.
  • an enlarged space 33 is provided between the two cheeks 20 and contains a ball bearing 34 comprising an outer ring 35, the hub 21 serving directly as the inner ring of the bearing.
  • the ring 35 has externally a flat rim 35a which is fitted into a rectangular profile groove formed in the thickness of the plate 24 and containing a relatively elastomer soft 36 which absorbs the shocks undergone by the caster, the ring 35 then sliding radially in the groove.
  • the plate 24 must obviously have a removable part 24a around the lower half of each bearing 34, to allow the mounting of the rollers.
  • rollers in the form of coils advantageously allow the mounting of a rotation mechanism in one direction (not shown) disposed between the internal surface of a cheek 20 and a lateral surface of the plate 24 or of the ring 35
  • a rotation mechanism in one direction (not shown) disposed between the internal surface of a cheek 20 and a lateral surface of the plate 24 or of the ring 35
  • It may for example be a metal washer with oblique fins cooperating with fine radial grooves formed in said surfaces, or a ball bearing of the "freewheel” type, which locks automatically as soon as it starts a backward rotation.
  • the caster can only turn forward and allows the skater to propel himself easily, especially when climbing.
  • Figs. 9 to 11 illustrate an adjustable braking device 40 which is mounted on the plate 24 of the chassis between the two casters 4 and 5.
  • the braking device comprises a sliding frame 41 comprising a pair of metal plates 42 each provided with 'a head 43 and connected to each other by two pins 44 and 45 which can slide in the oblong holes 29 (fig. 6) of the frame.
  • Each axis 44 and 45 carries a pair of braking wheels 46 and 47 of compressible material, which are arranged on either side of the plate 24 and which are pressed against it, for example by means of elastic washers, in order to ensure friction braking against this plate.
  • the heads 43 two sliding frames are applied against a central cam 48 whose rotation is controlled by a rack 49 which slides longitudinally in a groove of the chassis under the effect of a rear pusher 50 (fig. 1) and a return spring . Furthermore, the rack 49 is held in position by a ratchet mechanism (not shown) which can be released by lifting the plunger 50.
  • the cam 48 comprises, on each side of the chassis, cam surfaces 51 and 52 which are distinct for the front and rear braking mechanisms, but which are similar and angularly offset relative to one another to produce the same braking effect simultaneously in the two mechanisms.
  • FIG. 1 1 shows the profile of one of the peripheral surfaces 51 of the cam 48, this cam being rotatable about its axis 53.
  • the head 43 of the sliding frame 41 " is pressed against the surface 5 ⁇ simply by the own elasticity of the material constituting the braking wheels 46 and 47.
  • Different positions of the support of the head 43 against the surface 51 during the rotation of the cam are marked by a graduation going from 0 to 4.
  • the frame 41 In position 0, the frame 41 is sufficiently retracted with respect to the corresponding caster 4, 5 so that the wheel 46 does not touch the tire 32 and the caster is therefore not braked In position 1, the wheel 46 bears lightly against the tire 32 and it slides on it, because its friction against the plate 24 is strong enough to prevent it from turning at this stage. In position 2 on the contrary, the friction of the wheel 46 on the tire 32 becomes stronger and turns the wheel 46 , the braking then taking place against the plate 24 In position 3, the thrust exerted by the caster is strong enough for the wheel 46 to move back until it touches the second braking wheel 47, thanks to its deformation by elasticity or, if necessary, thanks to a sliding elastic mounting of its axis 44 in the frame 41.
  • This device makes it possible to solve in a simple way the problem of the metered and simultaneous braking of all the rollers of a skate to allow the skater to safely travel relatively steep descents.
  • the skater can increase the braking force of a skate at any time by hitting the control pusher 50 by means of the front stopper 6 of the other skate.
  • the release can be carried out by lifting the pusher 50 by means of the same stopper or manually.
  • Fig. 12 more specifically illustrates the use of the front bumpers 6 and rear 7.
  • the skater can use the front bumper 6 to propel himself. He then inclines his foot forward, at an angle greater than the angle B which is equal to 41 ° in the present example, and he presses the stopper 6 against the ground 19 to propel himself forward.
  • the stopper 7 acts as a friction brake against the ground.
  • the skater tilts his foot backwards, by an angle greater than the angle C which is preferably here 29 °.
  • the sum of the angles B + C that is to say 70 °, is high enough to allow the skater a great freedom to tilt his foot forward or backward without the stops touching the ground while he is skating.
  • the present invention is not limited to the embodiment described above, but on the contrary extends to all modifications or variants obvious to a person skilled in the art.
  • any suitable material may be used for the construction of the various elements, for example steel, light metal or a rigid synthetic material for the chassis and for the rollers in the form of a coil.
  • the articulated leg support 10 can also be the subject of multiple variants from the point of view of construction, padding and fixing devices to the leg, in particular as shown in the publications cited above. may include a half-shell applying over a certain height along the leg, or even be replaced by a complete shoe articulated or flexible longitudinally, to which the chassis is fixed 3.
  • the publications DE-A-2 745 040 and CH-A-580'976 show different ways of attaching a skate frame formed mainly to the sole of a shoe by a central longitudinal plate.
  • the skates according to the invention have the advantage of a central chassis which can be very rigid while being simple and light.
  • the central plate of the chassis simultaneously carries the two wheels, the buffers and, if necessary, the braking device.
  • this simple construction allows for a skate that is lighter and less expensive than conventional skates.
  • the reel-shaped casters are light and have an aesthetic appearance, and moreover they are mounted in large-diameter bearings which are space-saving while being very resistant to shocks thanks to the large number of beads they can hold.
  • the ground support points are always very close to this median plane.
  • the skates according to the invention allow a skater the same developments as those of an ice skater.
  • the user wearing these skates can also move easily in the street or in a building, on longitudinal or transverse slopes and on stairs.
  • the invention applies as well to skates designed to evolve on a track or for figure skating, as to skates intended for movement on the street or in buildings.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)

Abstract

The skate includes an under-frame (3) equipped with two or several rollers aligned one behind the other in a common median plane. Each roller (4, 5) has a shape of a narrow-bobbin, with two circular flanges provided with bands and a central hollowed hub, fixed inside a ball-bearing. This bearing is put in an orifice of a central plate (24) of the under-frame, this plate holding also a front buffer-stop (6) and a back buffer-stop (7). An instrument absorbing the shocks in the radial direction is intercalated between the bearing and the plate (24). Preferably, the under-frame (3) of the skate is equipped with a support for a leg (1) which is articulated in relation to a transverse axis (Y) at the level of the ankle. A braking mechanism of the rollers (4, 5) can be fixed on the central plate (24) of the under-frame. Thanks to the special shape of the rollers, bearings and the under-frame are lightened.

Description

PATIN A ROULETTES COMPORTANT AU MOINS DEUX ROULETTES ALIGNEES LE LONG D'UN PLAN MEDIAN CASTER SKATE HAVING AT LEAST TWO CASTERS ALIGNED ALONG A MEDIAN PLAN
La présente invention concerne un patin à roulettes comportant un châssis, au moins deux roulettes montées sur une partie inférieure de ce châssis et alignées l'une derrière l'autre le long d'un plan médian commun perpendiculaire à leurs axes de rotation, et des moyens de maintien pour fixer le châssis à un pied et à la jambe correspondante d'un utilisateur.The present invention relates to a roller skate comprising a chassis, at least two rollers mounted on a lower part of this chassis and aligned one behind the other along a common median plane perpendicular to their axes of rotation, and holding means for fixing the chassis to a foot and to the corresponding leg of a user.
Le certificat d'utilité FR-A-2 312 11k et le brevet correspondant US-A- 072 317 décrivent un patin de ce genre, comportant deux roulettes alignées relativement larges. Chaque roulette est montée sous le châssis entre deux bras parallèles portant les extrémités de son axe. Pour avoir la rigidité voulue, ce montage connu nécessite au moins quatre bras très rigides, ainsi que des axes de roulettes qui sont relativement gros et assez longs pour porter chaque roulette par deux roulements parallèles. Cette construction présente ainsi un poids assez important. De plus les bras constituent, de chaque côté des roulettes, des éléments saillants qui peuvent heurter le sol ou divers obstacles quand on patine, ce qui est une source de dangers et de dégâts.The utility certificate FR-A-2 312 11k and the corresponding patent US-A-072 317 describe a shoe of this kind, comprising two relatively wide aligned rollers. Each caster is mounted under the chassis between two parallel arms carrying the ends of its axis. To have the desired rigidity, this known assembly requires at least four very rigid arms, as well as roller axles which are relatively large and long enough to carry each caster by two parallel bearings. This construction thus has a fairly significant weight. In addition, the arms constitute, on each side of the casters, projecting elements which can strike the ground or various obstacles when skating, which is a source of danger and damage.
Le brevet US-A- 18 929 montre aussi un patin du même genre, mais pourvu de deux roulettes étroites montées entre deux plaques verticales du châssis. Cette structure doit également être assez lourde pour présenter la rigidité voulue, notamment au point de vue des déformations transversales, et les axes des roulettes sont aussi proéminents latéralement.The patent US-A-18 929 also shows a shoe of the same kind, but provided with two narrow rollers mounted between two vertical plates of the chassis. This structure must also be heavy enough to have the desired rigidity, in particular from the point of view of transverse deformations, and the axes of the rollers are also prominent laterally.
La présente invention a pour but de fournir un patin du type indiqué en préambule, agencé de manière à éviter les inconvénients mentionnés ci-dessus, afin de permettre une grande liberté d'évolution grâce à sa légèreté, à sa stabilité et à l'absence d'éléments latéraux saillants. Dans ce but, le patin à roulettes selon l'invention est caractérisé en ce que chacune des roulettes comporte deux joues circulaires sensiblement parallèles et de même diamètre, et en ce que ces deux joues sont solidaires d'un moyeu central de moindre diamètre qui est monté à l'intérieur d'un palier de roulement monté sur le châssis et situé dans le plan médian.The object of the present invention is to provide a shoe of the type indicated in the preamble, arranged so as to avoid the drawbacks mentioned above, in order to allow great freedom of development thanks to its lightness, its stability and the absence protruding side elements. For this purpose, the roller skate according to the invention is characterized in that each of the rollers has two circular cheeks substantially parallel and of the same diameter, and in that these two cheeks are integral with a central hub of smaller diameter which is mounted inside a rolling bearing mounted on the chassis and located in the median plane.
De cette manière, les roues ont la forme générale d'une bobine très étroite qui peut reposer sur le sol par ses deux joues quand elle est perpendiculaire au sol, ou par une seule quand elle est inclinée. De plus, cette bobine peut être supportée uniquement au voisinage de son plan médian, ce qui permet d'éviter toute monture saillante aux extrémités de la bobine, c'est-à-dire sur les côtés du patin. Pour être allégée, chaque roulette peut être évidée par un trou central traversant axialement toute la roulette.In this way, the wheels have the general shape of a very narrow coil which can rest on the ground by its two cheeks when it is perpendicular to the ground, or by only one when it is inclined. In addition, this coil can be supported only in the vicinity of its median plane, which avoids any protruding mount at the ends of the coil, that is to say on the sides of the pad. To be lightened, each caster can be hollowed out by a central hole axially traversing the entire caster.
De préférence, ladite partie inférieure du châssis comporte une plaque longitudinale centrale située dans le pian médian et dans laquelle sont montés les paliers des deux roulettes, cette plaque étant solidaire d'une plaque d'appui s'étendant sous le pied de l'utilisateur.Preferably, said lower part of the chassis comprises a central longitudinal plate located in the middle plane and in which the bearings of the two rollers are mounted, this plate being integral with a support plate extending under the foot of the user. .
Dans une forme de réalisation particulière, un élément élastique est interposé entre chaque palier de roulement et le châssis. A cet effet, chaque palier de roulement peut comporter une bague extérieure pourvue extérieurement d'un rebord radial monté avec un jeu radial dans une rainure du châssis, une matière élastique étant intercalée entre ce rebord et le fond de la rainure pour absorber les chocs. Le palier de roulement peut être un palier à billes dont la bague intérieure est constituée par le moyeu de la roulette. D'autre part, le bord extérieur de chaque joue des roulettes peut être garni d'un bandage en élastomère.In a particular embodiment, an elastic element is interposed between each rolling bearing and the chassis. To this end, each rolling bearing may comprise an outer ring provided externally with a radial flange mounted with a radial clearance in a groove of the chassis, an elastic material being interposed between this flange and the bottom of the groove to absorb shocks. The rolling bearing can be a ball bearing, the inner ring of which is formed by the hub of the caster. On the other hand, the outer edge of each cheek of the rollers can be covered with an elastomer bandage.
Dans une réalisation particulière, un dispositif de freinage des roulettes est monté sur la plaque centrale du châssis et comporte des organes de freinage montés de manière coulissante le long de cette plaque pour entrer en contact avec les roulettes, et un mécanisme central de commande. Un tel organe de freinage peut comporter au moins un bâti coulissant comportant une roue pressée contre la plaque centrale du châssis et agencée pour rouler sur le bord d'une joue de la roulette correspondante. D'autre part, au moins l'une des roulettes peut être équipée d'un mécanisme de rotation dans un seul sens pour éviter une rotation en arrière.In a particular embodiment, a device for braking the rollers is mounted on the central plate of the chassis and comprises braking members mounted in a sliding manner along this plate to come into contact with the rollers, and a central control mechanism. Such a braking member may include at least one frame sliding comprising a wheel pressed against the central plate of the chassis and arranged to roll on the edge of a cheek of the corresponding wheel. On the other hand, at least one of the rollers can be equipped with a rotation mechanism in one direction to avoid rotation backwards.
Dans une forme de réalisation avantageuse, les moyens de maintien comportent un collier agencé pour être fixé autour de la jambe de l'utilisateur et relié au châssis par un mécanisme rigide transversa¬ lement, mais articulé par rapport à un axe transversal au niveau de la cheville de l'utilisateur.In an advantageous embodiment, the holding means comprise a collar arranged to be fixed around the user's leg and connected to the chassis by a rigid mechanism transversely, but articulated with respect to a transverse axis at the level of the user's ankle.
La présente invention sera mieux comprise à l'aide de la description suivante d'un exemple de réalisation, en référence aux dessins annexés, dans lesquels :The present invention will be better understood with the aid of the following description of an exemplary embodiment, with reference to the appended drawings, in which:
la fig. 1 est une vue schématique en perspective d'un patin à roulettes selon l'invention, fixé au pied et à la jambe d'un utilisateur,fig. 1 is a schematic perspective view of a roller skate according to the invention, fixed to the foot and to the leg of a user,
la fig. 2 est une vue frontale montrant les possibilités d'inclinaison latérale du patin et de la jambe,fig. 2 is a front view showing the possibilities of lateral inclination of the skate and the leg,
la fig. 3 est une vue latérale montrant les possibilités d'inclinaison longitudinale de la jambe quand les deux roulettes du patin s'appuient sur le sol,fig. 3 is a side view showing the possibilities of longitudinal inclination of the leg when the two skate wheels are resting on the ground,
la fig. est une vue schématique en perspective d'une roulette en forme de bobine,fig. is a schematic perspective view of a reel-shaped caster,
la fig. 5 est une vue en coupe transversale montrant le profil du châssis du patin,fig. 5 is a cross-sectional view showing the profile of the skate frame,
la fig. 6 est une vue latérale de ce châssis,fig. 6 is a side view of this chassis,
la fig. 7 est une vue en coupe transversale d'une forme de réalisation préférée d'une roulette et de sa monture, la fig. 8 illustre en coupe transversale partielle une autre forme de réalisation d'une roulette,fig. 7 is a cross-sectional view of a preferred embodiment of a caster and its frame, fig. 8 illustrates in partial cross-section another embodiment of a caster,
les fig. 9 et 10 représentent respectivement en vue latérale et en plan un dispositif de freinage des roulettes,fig. 9 and 10 represent respectively in side view and in plan a device for braking the rollers,
la fig. 1 1 représente une came de commande du dispositif de freinage, etfig. 1 1 represents a control cam for the braking device, and
la fig. 12 est une vue latérale montrant la disposition de deux butoirs sur le châssis du patin.fig. 12 is a side view showing the arrangement of two buffers on the skate frame.
La fig. 1 montre un patin à roulettes selon l'invention, fixé à une jambeFig. 1 shows a roller skate according to the invention, fixed to one leg
I et au pied correspondant ou à la chaussure 2 d'un utilisateur. Le patin comporte un châssis rigide 3 supportant la semelle de la chaussure 2 et équipé, dans sa partie inférieure, d'une roulette avant • , d'une roulette arrière 5, d'un butoir avant 6 et d'un butoir arrière 7. Le châssis 3 est attaché à la chaussure 2 à l'aide d'une bride réglable classique 8. Par ailleurs, le patin comporte un support de jambe 10 comprenant un collierI and the corresponding foot or shoe 2 of a user. The skate comprises a rigid frame 3 supporting the sole of the shoe 2 and equipped, in its lower part, with a front caster •, a rear caster 5, a front stopper 6 and a rear stopper 7. The frame 3 is attached to the shoe 2 using a conventional adjustable strap 8. Furthermore, the skate has a leg support 10 comprising a collar
I I destiné à être attaché autour de la jambe 1 de l'utilisateur et relié au châssis 3, de chaque côté de la cheville 12 de l'utilisateur, par une paire de lames métalliques rigides 13 et ï- articulées entre elles en 15 au niveau de la cheville 12 pour permettre au collier 11 de basculer avec la jambe 1 vers l'avant ou vers l'arrière en effectuant un pivotement w par rapport à un axe transversal Y, comme le montre la fig. 3. En revanche, un basculement latéral relatif du châssis 3 par rapport à la jambe 1, par une rotation w autour de l'axe longitudinal Z, est empêché par la rigidité du support 10. Cependant, la jambe 1 peut tout de même effectuer un certain pivotement w autour de son axe longitudinal X à l'intérieur du collier I I, si bien que le patineur peut diriger l'axe 2 de son pied comme il le désire.II intended to be attached around the leg 1 of the user and connected to the chassis 3, on each side of the ankle 12 of the user, by a pair of rigid metal blades 13 and hinged together at 15 at the level of the dowel 12 to allow the collar 11 to tilt with the leg 1 forwards or backwards by pivoting w relative to a transverse axis Y, as shown in fig. 3. On the other hand, a relative lateral tilting of the chassis 3 relative to the leg 1, by a rotation w around the longitudinal axis Z, is prevented by the rigidity of the support 10. However, the leg 1 can still perform a certain pivoting w around its longitudinal axis X inside the collar II, so that the skater can direct the axis 2 of his foot as he wishes.
La rigidité transversale du support de jambe 10 soulage considé¬ rablement les efforts à fournir par le patineur au niveau de la cheville. Elle a aussi pour effet de maintenir le plan médian commun des deux roulettes et 5 pratiquement en coïncidence avec l'axe longitudinal X de la jambe 1 et de l'incliner latéralement avec la jambe par rapport au sol 19, comme le montre la fig. 2. L'angle A entre les positions extrêmes 1 ' et 1" d'inclinaison de la jambe est très important grâce à l'étroitesse des roulettes et à l'absence d'éléments latéraux saillants au niveau des roulettes.The transverse rigidity of the leg support 10 considerably relieves the efforts to be provided by the skater at the ankle. It also has the effect of maintaining the common median plane of the two rollers and 5 practically in coincidence with the longitudinal axis X of the leg 1 and tilt it laterally with the leg relative to the ground 19, as shown in fig. 2. The angle A between the extreme positions 1 ′ and 1 "of inclination of the leg is very large thanks to the narrowness of the rollers and the absence of projecting lateral elements at the level of the rollers.
La fig. 4 montre en perspective la forme schématique en bobine des roulettes 4 et 5, avec deux joues 20 qui sont parallèles et symétriques par rapport au plan médian et qui sont reliées rigidement par un moyeu central 21 dont le diamètre extérieur est inférieur au leur. La roulette comporte de préférence, mais pas nécessairement, un trou central 22 qui permet de l'alléger.Fig. 4 shows in perspective the schematic reel shape of the rollers 4 and 5, with two cheeks 20 which are parallel and symmetrical with respect to the median plane and which are rigidly connected by a central hub 21 whose outside diameter is less than theirs. The wheel preferably, but not necessarily, has a central hole 22 which makes it possible to lighten it.
Les fig. 5 et 6 montrent plus particulièrement la forme du châssis 3, formé essentiellement par une plaque horizontale 23 supportant la semelle' de la chaussure et une plaque verticale 24 percée de deux grands orifices circulaires 25 et 26 pour le montage des moyeux 21 des roulettes et 5, les joues 20 de chaque roulette se trouvant respecti¬ vement de part et d'autre de cette plaque 24. Bien entendu, on pourrait prévoir un patin similaire ayant plus de deux roulettes consécutives, montées en alignement ou suivant un profil longitudinal incurvé. Par ailleurs, la plaque 24 est percée de trous 27 et 28 pour la fixation des butoirs avant 6 et arrière 7 par des vis, et de trous 29 et 30 pour le montage d'un dispositif de freinage qui sera décrit plus loin.Figs. 5 and 6 show more particularly the shape of the frame 3, formed essentially by a horizontal plate 23 supporting the sole 'of the boot and a vertical plate 24 pierced by two large circular openings 25 and 26 for mounting the hubs 21 of the rollers and 5 , the cheeks 20 of each wheel being respecti¬ vely on either side of this plate 24. Of course, one could provide a similar pad having more than two consecutive rollers, mounted in alignment or in a curved longitudinal profile. Furthermore, the plate 24 is pierced with holes 27 and 28 for fixing the front buffers 6 and rear 7 with screws, and holes 29 and 30 for mounting a braking device which will be described later.
La fig. 7 montre plus en détail une forme de réalisation avantageuse d'une roulette 4, 5 et son montage dans la plaque 24 du châssis. Le moyeu 21 et les joues 20 de la roulette sont faits d'une seule pièce rigide, de préférence métallique, le pourtour des joues étant garni d'un bandage 32 en élastomère relativement dur qui a un profil en quart de cercle. A proximité du moyeu 21, un espace élargi 33 est ménagé entre les deux joues 20 et renferme un roulement à billes 34 comprenant une bague extérieure 35, le moyeu 21 servant directement de bague intérieure du roulement. La bague 35 présente extérieurement un rebord plat 35a qui est ajusté dans une rainure à profil rectangulaire ménagée dans l'épaisseur de la plaque 24 et contenant un élastomère relativement tendre 36 qui absorbe les chocs subis par la roulette, la bague 35 coulissant alors radialement dans la rainure. Dans cet exemple, la plaque 24 doit évidemment comporter une partie amovible 24a autour de la moitié inférieure de chaque roulement 34, pour permettre le montage des roulettes.Fig. 7 shows in more detail an advantageous embodiment of a caster 4, 5 and its mounting in the plate 24 of the chassis. The hub 21 and the cheeks 20 of the wheel are made of a single rigid piece, preferably metallic, the periphery of the cheeks being provided with a bandage 32 made of relatively hard elastomer which has a quarter-circle profile. Near the hub 21, an enlarged space 33 is provided between the two cheeks 20 and contains a ball bearing 34 comprising an outer ring 35, the hub 21 serving directly as the inner ring of the bearing. The ring 35 has externally a flat rim 35a which is fitted into a rectangular profile groove formed in the thickness of the plate 24 and containing a relatively elastomer soft 36 which absorbs the shocks undergone by the caster, the ring 35 then sliding radially in the groove. In this example, the plate 24 must obviously have a removable part 24a around the lower half of each bearing 34, to allow the mounting of the rollers.
Dans la variante illustrée en fig. 8, on parvient à réduire à quelques millimètres l'intervalle entre les deux bandages 32 de la roulette, en donnant aux joues 20 un profil en forme d'étau et en ménageant dans chaque face de la plaque 24 une rainure 38 en arc de cercle pour le passage du bandage 32. Comme la partie amincie 39 de la plaque 24 est en arc de cercle, il n'en résulte pas un affaiblissement notable de la plaque. En revanche, l'une des joues 20 doit être amovible pour permettre le montage et le démontage de la roulette.In the variant illustrated in FIG. 8, it is possible to reduce the interval between the two casings 32 of the caster wheel to a few millimeters, by giving the cheeks 20 a profile in the form of a vice and by providing in each face of the plate 24 a groove 38 in an arc for the passage of the tire 32. As the thinned part 39 of the plate 24 is in an arc, this does not result in a significant weakening of the plate. However, one of the cheeks 20 must be removable to allow the mounting and dismounting of the caster.
En outre, les roulettes en forme de bobines permettent avantageusement le montage d'un mécanisme de rotation dans un seul sens (non représenté) disposé entre la surface interne d'une joue 20 et une surface latérale de la plaque 24 ou de la bague 35. Il peut s'agir par exemple d'une rondelle métallique à ailettes obliques coopérant avec de fines rainures radiales ménagées dans lesdites surfaces, ou d'un roulement à billes du type "roue libre", qui se bloque automatiquement sitôt qu'il amorce une rotation en arrière. Ainsi, la roulette ne peut tourner qu'en avant et permet au patineur de se propulser aisément, notamment à la montée.In addition, the rollers in the form of coils advantageously allow the mounting of a rotation mechanism in one direction (not shown) disposed between the internal surface of a cheek 20 and a lateral surface of the plate 24 or of the ring 35 It may for example be a metal washer with oblique fins cooperating with fine radial grooves formed in said surfaces, or a ball bearing of the "freewheel" type, which locks automatically as soon as it starts a backward rotation. Thus, the caster can only turn forward and allows the skater to propel himself easily, especially when climbing.
Les fig. 9 à i l illustrent un dispositif de freinage réglable 40 qui est monté sur la plaque 24 du châssis entre les deux roulettes 4 et 5. Pour chaque roulette, le dispositif de freinage comporte un bâti coulissant 41 comprenant une paire de plaques métalliques 42 pourvues chacune d'une tête 43 et reliées l'une à l'autre par deux axes 44 et 45 qui peuvent coulisser dans les trous oblongs 29 (fig. 6) du châssis. Chaque axe 44 et 45 porte une paire de roues de freinage 46 et 47 en matière compressible, qui sont disposées de part et d'autre de la plaque 24 et qui sont pressées contre elle, par exemple au moyen de rondelles élastiques, afin d'assurer un freinage par friction contre cette plaque. Les têtes 43 des deux bâtis coulissants sont appliquées contre une came centrale 48 dont la rotation est commandée par une crémaillère 49 qui coulisse longitudinalement dans une rainure du châssis sous l'effet d'un poussoir arrière 50 (fig. 1) et d'un ressort de rappel. Par ailleurs, la crémaillère 49 est maintenue en position par un mécanisme à cliquet (non représenté) que l'on peut débloquer en soulevant le poussoir 50. Dans le cas présent, on remarque que la came 48 comporte, de chaque côté du châssis, des surfaces de came 51 et 52 qui sont distinctes pour les mécanismes de freinage avant et arrière, mais qui sont semblables et décalées angulairement l'une par rapport à l'autre pour produire simulta¬ nément le même effet de freinage dans les deux mécanismes.Figs. 9 to 11 illustrate an adjustable braking device 40 which is mounted on the plate 24 of the chassis between the two casters 4 and 5. For each caster, the braking device comprises a sliding frame 41 comprising a pair of metal plates 42 each provided with 'a head 43 and connected to each other by two pins 44 and 45 which can slide in the oblong holes 29 (fig. 6) of the frame. Each axis 44 and 45 carries a pair of braking wheels 46 and 47 of compressible material, which are arranged on either side of the plate 24 and which are pressed against it, for example by means of elastic washers, in order to ensure friction braking against this plate. The heads 43 two sliding frames are applied against a central cam 48 whose rotation is controlled by a rack 49 which slides longitudinally in a groove of the chassis under the effect of a rear pusher 50 (fig. 1) and a return spring . Furthermore, the rack 49 is held in position by a ratchet mechanism (not shown) which can be released by lifting the plunger 50. In the present case, it is noted that the cam 48 comprises, on each side of the chassis, cam surfaces 51 and 52 which are distinct for the front and rear braking mechanisms, but which are similar and angularly offset relative to one another to produce the same braking effect simultaneously in the two mechanisms.
On décrira le fonctionnement du dispositif de freinage en se référant également à la fig. 1 1 qui montre le profil d'une des surfaces périphériques 51 de la came 48, cette came étant rotative autour de son axe 53. La tête 43 du bâti coulissant 41" est pressée contre la surface 5 \ simplement par l'élasticité propre de la matière constituant les roues de freinage 46 et 47. Différentes positions de l'appui de la tête 43 contre la surface 51 au cours de la rotation de la came sont marquées par une graduation allant de 0 à 4. En position 0, le bâti 41 est suffisamment reculé par rapport à la roulette correspondante 4, 5 pour que la roue 46 ne touche pas le bandage 32 et que la roulette ne soit donc pas freinée. En position 1, la roue 46 s'appuie légèrement contre le bandage 32 et elle glisse sur lui, car sa friction contre la plaque 24 est assez forte pour l'empêcher de tourner à ce stade. En position 2 au contraire, la friction de la roue 46 sur le bandage 32 devient plus forte et fait tourner la roue 46, le freinage s'effectuant alors contre la plaque 24. En position 3, la poussée exercée par la roulette est assez forte pour que la roue 46 recule jusqu'à toucher la seconde roue de freinage 47, grâce à sa déformation par élasticité ou, le cas échéant, grâce à un montage élastique coulissant de son axe 44 dans le bâti 41. Le freinage est alors renforcé par la friction de la roue 47 contre la plaque 24. Enfin, en position 4, on obtient un freinage encore plus fort permettant de bloquer complètement la roue, par appui de la tête 43 contre la roue 47 grâce à l'élasticité de cette dernière autour de l'axe 45. La crémaillère 49 est retenue par une butée afin que la came 48 ne puisse pas tourner au-delà de la position 4.The operation of the braking device will be described with reference also to FIG. 1 1 which shows the profile of one of the peripheral surfaces 51 of the cam 48, this cam being rotatable about its axis 53. The head 43 of the sliding frame 41 " is pressed against the surface 5 \ simply by the own elasticity of the material constituting the braking wheels 46 and 47. Different positions of the support of the head 43 against the surface 51 during the rotation of the cam are marked by a graduation going from 0 to 4. In position 0, the frame 41 is sufficiently retracted with respect to the corresponding caster 4, 5 so that the wheel 46 does not touch the tire 32 and the caster is therefore not braked In position 1, the wheel 46 bears lightly against the tire 32 and it slides on it, because its friction against the plate 24 is strong enough to prevent it from turning at this stage. In position 2 on the contrary, the friction of the wheel 46 on the tire 32 becomes stronger and turns the wheel 46 , the braking then taking place against the plate 24 In position 3, the thrust exerted by the caster is strong enough for the wheel 46 to move back until it touches the second braking wheel 47, thanks to its deformation by elasticity or, if necessary, thanks to a sliding elastic mounting of its axis 44 in the frame 41. The braking is then reinforced by the friction of the wheel 47 against the plate 24. Finally, in position 4, an even stronger braking is obtained making it possible to completely block the wheel, by pressing the head 43 against the wheel 47 thanks to the elasticity of the latter around the axis 45. The rack 49 is retained by a stop so that the cam 48 cannot rotate beyond from position 4.
Ce dispositif permet de résoudre d'une manière simple le problème du freinage dosé et simultané de toutes les roulettes d'un patin pour permettre au patineur de parcourir sans danger des descentes relativement raides. Le patineur peut augmenter à tout moment l'effort de freinage d'un patin en frappant sur le poussoir de commande 50 au moyen- du butoir avant 6 de l'autre patin. Le déblocage peut s'effectuer en soulevant le poussoir 50 au moyen du même butoir ou manuellement.This device makes it possible to solve in a simple way the problem of the metered and simultaneous braking of all the rollers of a skate to allow the skater to safely travel relatively steep descents. The skater can increase the braking force of a skate at any time by hitting the control pusher 50 by means of the front stopper 6 of the other skate. The release can be carried out by lifting the pusher 50 by means of the same stopper or manually.
La fig. 12 illustre plus spécialement l'utilisation des butoirs avant 6 et arrière 7. Le patineur peut utiliser le butoir avant 6 pour se propulser. Il incline alors son pied vers l'avant, sous un angle supérieur à l'angle B qui est égal à 41° dans le présent exemple, et il presse le butoir 6 contre le sol 19 pour se propulser en avant. Le butoir 7 sert de frein par friction contre le sol. Pour cela, le patineur incline son pied vers l'arrière, d'un angle supérieur à l'angle C qui vaut ici, de préférence, 29°. On remarque que la somme des angles B + C, soit 70°, est suffisamment élevée pour laisser au patineur une grande liberté d'incliner son pied en avant ou en arrière sans que les butoirs touchent le sol pendant qu'il patine.Fig. 12 more specifically illustrates the use of the front bumpers 6 and rear 7. The skater can use the front bumper 6 to propel himself. He then inclines his foot forward, at an angle greater than the angle B which is equal to 41 ° in the present example, and he presses the stopper 6 against the ground 19 to propel himself forward. The stopper 7 acts as a friction brake against the ground. For this, the skater tilts his foot backwards, by an angle greater than the angle C which is preferably here 29 °. We note that the sum of the angles B + C, that is to say 70 °, is high enough to allow the skater a great freedom to tilt his foot forward or backward without the stops touching the ground while he is skating.
La présente invention n'est pas limitée à l'exemple de réalisation décrit ci-dessus, mais elle s'étend au contraire à toutes modifications ou variantes évidentes pour un homme du métier. En particulier, on pourra utiliser tous matériaux appropriés pour la construction des différents éléments, par exemple l'acier, du métal léger ou une matière synthétique rigide pour le châssis et pour les roulettes en forme de bobine. Le support de jambe articulé 10 peut aussi faire l'objet de multiples variantes au point de vue de la construction, du rembourrage et des organes de fixation à la jambe, notamment comme le montrent les publications citées plus haut.. Le cas échéant, il peut comporter une demi-coquille s'appliquant sur une certaine hauteur le long de la jambe, ou même être remplacé par une chaussure complète articulée ou flexible longitudinalement, à laquelle est fixé le châssis 3. Les publications DE-A-2 745 040 et CH-A-580'976 montrent différentes manières de fixer à la semelle d'une chaussure un châssis de patin formé principalement par une plaque longitudinale centrale.The present invention is not limited to the embodiment described above, but on the contrary extends to all modifications or variants obvious to a person skilled in the art. In particular, any suitable material may be used for the construction of the various elements, for example steel, light metal or a rigid synthetic material for the chassis and for the rollers in the form of a coil. The articulated leg support 10 can also be the subject of multiple variants from the point of view of construction, padding and fixing devices to the leg, in particular as shown in the publications cited above. may include a half-shell applying over a certain height along the leg, or even be replaced by a complete shoe articulated or flexible longitudinally, to which the chassis is fixed 3. The publications DE-A-2 745 040 and CH-A-580'976 show different ways of attaching a skate frame formed mainly to the sole of a shoe by a central longitudinal plate.
Par rapport aux patins classiques à deux roues, les patins selon l'invention présentent l'avantage d'un châssis central qui peut être très rigide tout en étant simple et léger. La plaque centrale du châssis porte en même temps les deux roues, les butoirs et, le cas échéant, le dispositif de freinage. Combinée avec les roues en forme de bobine, cette construction simple permet de réaliser un patin qui est plus léger et moins coûteux que les patins classiques. Grâce à leur moyeu évidé et de grand diamètre, les roulettes en forme de bobines sont légères et ont un aspect esthétique, et de plus elles sont montées dans des paliers de grand diamètre qui sont peu encombrants tout en étant très résistants aux chocs grâce au grand nombre de billes qu'ils peuvent contenir. Comme les deux bandages de chaque roulette sont proches du plan médian, les points d'appui au sol sont toujours très proches de ce plan médian. Ceci permet à l'utilisateur de patiner d'une manière plus précise, plus facile et plus sûre. Les patins selon l'invention permettent à un patineur les mêmes évolutions que celles d'un patineur sur glace. L'utilisateur chaussé de ces patins peut aussi se déplacer aisément dans la rue ou dans un bâtiment, sur des pentes longitudinales ou transver¬ sales et sur des escaliers.Compared to conventional two-wheel skates, the skates according to the invention have the advantage of a central chassis which can be very rigid while being simple and light. The central plate of the chassis simultaneously carries the two wheels, the buffers and, if necessary, the braking device. Combined with the reel-shaped wheels, this simple construction allows for a skate that is lighter and less expensive than conventional skates. Thanks to their large hollowed-out hub, the reel-shaped casters are light and have an aesthetic appearance, and moreover they are mounted in large-diameter bearings which are space-saving while being very resistant to shocks thanks to the large number of beads they can hold. As the two tires of each caster are close to the median plane, the ground support points are always very close to this median plane. This allows the user to skate more precisely, easier and safer. The skates according to the invention allow a skater the same developments as those of an ice skater. The user wearing these skates can also move easily in the street or in a building, on longitudinal or transverse slopes and on stairs.
L'invention s'applique aussi bien à des patins conçus pour évoluer sur une piste ou pour le patinage artistique, qu'à des patins destinés à des déplacements dans la rue ou dans des bâtiments. The invention applies as well to skates designed to evolve on a track or for figure skating, as to skates intended for movement on the street or in buildings.

Claims

Revendications claims
1. Patin à roulettes comportant un châssis, au moins deux roulettes montées sur une partie inférieure de ce châssis et alignées l'une derrière l'autre le long d'un plan médian commun perpendiculaire à leurs axes de rotation, et des moyens de maintien pour fixer le châssis à un pied et à la jambe correspondante d'un utilisateur, caractérisé en ce que chacune des roulettes (4, 5) comporte deux joues circulaires (20) sensiblement parallèles et de même diamètre, et en ce que ces deux joues sont solidaires d'un moyeu central (21) de moindre diamètre qui est monté à l'intérieur d'un palier de roulement monté sur le châssis (3) et situé dans le plan médian.1. Roller skate comprising a chassis, at least two rollers mounted on a lower part of this chassis and aligned one behind the other along a common median plane perpendicular to their axes of rotation, and holding means for fixing the chassis to a foot and to the corresponding leg of a user, characterized in that each of the rollers (4, 5) has two circular cheeks (20) substantially parallel and of the same diameter, and in that these two cheeks are integral with a central hub (21) of smaller diameter which is mounted inside a rolling bearing mounted on the chassis (3) and located in the median plane.
2. Patin à roulettes selon la revendication i, caractérisé en ce que ladite partie inférieure du châssis comporte une plaque longitudinale centrale (24) située dans le plan médian et dans laquelle sont montés les paliers (34) des deux roulettes, cette plaque étant solidaire d'une plaque d'appui (23) s'étendant sous le pied de l'utilisateur.2. Roller skate according to claim i, characterized in that said lower part of the chassis comprises a central longitudinal plate (24) located in the median plane and in which are mounted the bearings (34) of the two rollers, this plate being integral a support plate (23) extending under the foot of the user.
3. Patin à roulettes selon la revendication 1 ou 2, caractérisé en ce qu'un élément élastique (36) est interposé entre chaque palier de roulement (34) et le châssis.3. Roller skate according to claim 1 or 2, characterized in that an elastic element (36) is interposed between each rolling bearing (34) and the chassis.
4. Patin à roulettes selon la revendication 3, caractérisé en ce que chaque palier de roulement comporte une bague extérieure (35) pourvue extérieurement d'un rebord radial (35a) monté avec un jeu radial dans une rainure du châssis, une matière élastique (36) étant intercalée entre ce rebord et le fond de la rainure pour absorber les chocs.4. Roller skate according to claim 3, characterized in that each rolling bearing comprises an outer ring (35) provided externally with a radial flange (35a) mounted with a radial clearance in a groove of the chassis, an elastic material ( 36) being interposed between this rim and the bottom of the groove to absorb shocks.
5. Patin à roulettes selon la revendication 4, caractérisé en ce que le palier de roulement est un palier à billes (34) dont la bague intérieure est constituée par le moyeu (21) de la roulette.5. Roller skate according to claim 4, characterized in that the rolling bearing is a ball bearing (34) whose inner ring is constituted by the hub (21) of the caster.
6. Patin à roulettes selon la revendication 1, caractérisé en ce que le bord extérieur de chaque joue (20) des roulettes est garni d'un bandage (32) en élastomère.6. Roller skate according to claim 1, characterized in that the outer edge of each cheek (20) of the rollers is covered with a bandage (32) made of elastomer.
7. Patin à roulettes selon la revendication 1, caractérisé en ce que chaque roulette (4, 5) est évidée par un trou central (22) traversant axialement toute la roulette.7. Roller skate according to claim 1, characterized in that each caster (4, 5) is hollowed out by a central hole (22) axially passing through the entire caster.
8. Patin à roulettes selon la revendication 2, caractérisé en ce qu'un dispositif (40) de freinage des roulettes est monté sur la plaque centrale (24) du châssis et comporte des organes de freinage (41 à 47) montés de manière coulissante le long de cette plaque pour entrer en contact avec les roulettes, et un mécanisme central de commande (48 à 52)8. Roller skate according to claim 2, characterized in that a device (40) for braking the rollers is mounted on the central plate (24) of the chassis and comprises braking members (41 to 47) mounted in a sliding manner along this plate to come into contact with the rollers, and a central control mechanism (48 to 52)
9. Patin à roulettes selon la revendication 8, caractérisé en ce qu'un organe de freinage comporte au moins un bâti coulissant (41 ) portant une roue (46) appuyée contre la plaque centrale (24) du châssis et agencée pour rouler sur le bord (32) d'une joue de la roulette correspondante.9. Roller skate according to claim 8, characterized in that a braking member comprises at least one sliding frame (41) carrying a wheel (46) pressed against the central plate (24) of the chassis and arranged to roll on the edge (32) of a cheek of the corresponding roulette.
10. Patin à roulettes selon la revendication 1, caractérisé en ce qu'au moins une roulette (4, 5) est équipée d'un mécanisme de rotation dans un seul sens, pour empêcher une rotation en arrière.10. Roller skate according to claim 1, characterized in that at least one roller (4, 5) is equipped with a rotation mechanism in one direction, to prevent rotation backwards.
1 1. Patin à roulettes selon la revendication 1, caractérisé en ce que lesdits moyens de maintien (10) comportent un collier (1 1) agencé pour être fixé autour de la jambe de l'utilisateur et relié au châssis par un mécanisme (13 à 15) rigide transversalement, mais articulé par rapport à un axe transversal (Y) au niveau de la cheville de l'utilisateur. 1 1. Roller skate according to claim 1, characterized in that said holding means (10) comprise a collar (1 1) arranged to be fixed around the user's leg and connected to the chassis by a mechanism (13 to 15) rigid transversely, but articulated with respect to a transverse axis (Y) at the level of the ankle of the user.
EP88908654A 1987-10-23 1988-10-17 Roller skates comprising at least two rollers aligned along a medial plane Expired - Lifetime EP0340260B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88908654T ATE83941T1 (en) 1987-10-23 1988-10-17 ROLLER SKATE WITH AT LEAST TWO ALIGNED WHEELS ALONG A CENTRAL PLANE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8714884 1987-10-23
FR8714884A FR2622119B1 (en) 1987-10-23 1987-10-23 CASTER SKATE HAVING AT LEAST TWO CASTERS MOUNTED IN A MEDIAN PLAN

Publications (2)

Publication Number Publication Date
EP0340260A1 true EP0340260A1 (en) 1989-11-08
EP0340260B1 EP0340260B1 (en) 1992-12-30

Family

ID=9356232

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88908654A Expired - Lifetime EP0340260B1 (en) 1987-10-23 1988-10-17 Roller skates comprising at least two rollers aligned along a medial plane

Country Status (7)

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US (1) US5069462A (en)
EP (1) EP0340260B1 (en)
JP (1) JPH02501711A (en)
AT (1) ATE83941T1 (en)
DE (1) DE3877186T2 (en)
FR (1) FR2622119B1 (en)
WO (1) WO1989003712A1 (en)

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FR2666239B1 (en) * 1990-09-04 1994-08-12 Cros Michel DEVICE WITH TWO RUNNING FOOTWEAR FOR INDIVIDUALLY MOVING.
US5331752A (en) * 1992-01-14 1994-07-26 Rollerblade, Inc. Skate with detachable shoe
US5664794A (en) * 1992-02-04 1997-09-09 Out Of Line Sports, Inc. Ground engaging movable skate brake
DE69317067T2 (en) * 1992-04-29 1998-06-18 Benetton Sportsystem Spa Roller skate with braking device
DE69318262T2 (en) * 1992-11-30 1998-08-27 Benetton Sportsystem Spa Roller skate with braking device
US20010022434A1 (en) 1993-07-19 2001-09-20 Sauter Thomas M. In-line roller skate with internal support and external ankle cuff
US5437466B1 (en) 1993-07-19 1997-11-18 K 2 Corp In-line roller skate
US6168172B1 (en) 1993-07-19 2001-01-02 K-2 Corporation In-line roller skate
US5411276A (en) * 1994-02-24 1995-05-02 Rollerblade, Inc. Roller skate brake
WO1996024414A1 (en) * 1995-02-06 1996-08-15 Bertram Burian Roller skating shoe
AT404560B (en) * 1995-02-06 1998-12-28 Ladislaus Peter Mag Ribarits Roller skate
US5697622A (en) * 1995-11-20 1997-12-16 Warinner; Peter Q. Double line roller skate
US6059303A (en) * 1995-11-21 2000-05-09 Bradfield; Athol George In-line skateboard
US5707068A (en) * 1995-11-21 1998-01-13 Bradfield; Athol George In-line skateboard
IT1279493B1 (en) 1995-12-22 1997-12-10 Sergio Miotto SKATE WITH SINGLE-BLADE CARRIAGE STRUCTURE, PARTICULARLY OF THE TYPE WITH IN-LINE DYNAMIC WHEELS
IT1288619B1 (en) * 1996-05-30 1998-09-23 Nordica Spa SHOE WITH WHEELS IN LINE
FR2763220B1 (en) * 1997-05-16 1999-08-20 Salomon Sa MULTI-POINT SPORTS SHOE
US6374516B1 (en) 1997-05-16 2002-04-23 Salomon S.A. Boot with an adjustable length upper adapted for skating
US6227622B1 (en) 1997-06-20 2001-05-08 K-2 Corporation Multilayer skate wheel
DE19851825B4 (en) 1998-11-10 2011-09-15 Litens Automotive Gmbh truck assembly
DE10333378A1 (en) * 2003-07-23 2005-02-17 Helmut Gottschalk Inline roller skates with axially effective braking system
ATE509758T1 (en) 2003-09-10 2011-06-15 Easton James D Inc FOOTWEAR ARTICLE HAVING A ONE-PIECE SUPPORT CONSTRUCTION AND MANUFACTURING METHOD
WO2008083499A1 (en) 2007-01-12 2008-07-17 Sport Maska Inc. Skate boot with improved flexibility
US20080238008A1 (en) * 2007-03-30 2008-10-02 Alexander Konstantinou Spokeless Wheel Inline Skate

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US1524286A (en) * 1921-12-06 1925-01-27 Julien A Bried Brake for roller skates
US1801205A (en) * 1930-05-22 1931-04-14 Edward M Mirick Skate
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DE2522199A1 (en) * 1975-05-17 1976-11-25 Ruediger Pommerening ROLLER SKATES
DE2745040A1 (en) * 1977-10-06 1979-04-12 Tec T T Wang SHOE WITH ATTACHABLE AND INTERCHANGEABLE ROLLER OR SKATE ACCESSORIES
US4418929A (en) * 1980-04-07 1983-12-06 Gray William J Single roller skate
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Also Published As

Publication number Publication date
EP0340260B1 (en) 1992-12-30
DE3877186T2 (en) 1993-06-09
FR2622119A1 (en) 1989-04-28
ATE83941T1 (en) 1993-01-15
US5069462A (en) 1991-12-03
WO1989003712A1 (en) 1989-05-05
DE3877186D1 (en) 1993-02-11
FR2622119B1 (en) 1990-09-07
JPH02501711A (en) 1990-06-14

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