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 planeInfo
- 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
Links
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.
Landscapes
- 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
Description
Claims
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)
Country | Link |
---|---|
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) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US988533A (en) * | 1910-01-27 | 1911-04-04 | Jan Zverina | Roller-skate. |
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 |
FR746228A (en) * | 1932-07-16 | 1933-05-24 | Device for clamping packets of letterpress types | |
US2141122A (en) * | 1937-12-22 | 1938-12-20 | Timken Roller Bearing Co | Cushioned roller bearing |
US2166767A (en) * | 1938-08-04 | 1939-07-18 | Paul Mathez | Roller skate |
BE478560A (en) * | 1947-01-10 | |||
AT334265B (en) * | 1974-11-13 | 1976-01-10 | Rothmayer Karl Heinz | ROLLER SKATE |
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 |
US4603868A (en) * | 1983-04-25 | 1986-08-05 | Schuetz Ernst | Roller skate undercarriage with adjustable rollers |
-
1987
- 1987-10-23 FR FR8714884A patent/FR2622119B1/en not_active Expired - Lifetime
-
1988
- 1988-10-17 EP EP88908654A patent/EP0340260B1/en not_active Expired - Lifetime
- 1988-10-17 JP JP63508012A patent/JPH02501711A/en active Pending
- 1988-10-17 AT AT88908654T patent/ATE83941T1/en not_active IP Right Cessation
- 1988-10-17 WO PCT/CH1988/000192 patent/WO1989003712A1/en active IP Right Grant
- 1988-10-17 DE DE8888908654T patent/DE3877186T2/en not_active Expired - Fee Related
-
1991
- 1991-03-22 US US07/675,017 patent/US5069462A/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO8903712A1 * |
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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