WO1998041295A1 - Roulette et commande a courroie a frein transversal - Google Patents
Roulette et commande a courroie a frein transversal Download PDFInfo
- Publication number
- WO1998041295A1 WO1998041295A1 PCT/DE1998/000767 DE9800767W WO9841295A1 WO 1998041295 A1 WO1998041295 A1 WO 1998041295A1 DE 9800767 W DE9800767 W DE 9800767W WO 9841295 A1 WO9841295 A1 WO 9841295A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tire
- ring
- wheel
- rim
- tyre
- Prior art date
Links
- 238000005096 rolling process Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- 239000013013 elastic material Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims 1
- 239000012876 carrier material Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 abstract description 13
- 238000003466 welding Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 230000035882 stress Effects 0.000 description 14
- 239000000806 elastomer Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
- 229920002635 polyurethane Polymers 0.000 description 5
- 239000004814 polyurethane Substances 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 210000002445 nipple Anatomy 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 241000282485 Vulpes vulpes Species 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000004643 material aging Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- A63C17/14—Roller skates; Skate-boards with brakes, e.g. toe stoppers, freewheel roller clutches
- A63C17/1436—Roller skates; Skate-boards with brakes, e.g. toe stoppers, freewheel roller clutches contacting the ground
-
- 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
- A63C17/04—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
- A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
- A63C2203/02—Special features of skates, skis, roller-skates, snowboards and courts enabling transverse riding, i.e. with one runner or skate per foot and direction transverse to the foot
Definitions
- the invention relates to wheels and belt drive for roller skates and other foot sports equipment, preferably for "in-line” skates, which are hereby equipped with a braking function for transverse braking.
- braking direction in the running direction of the rollers - or transverse to it.
- a technological approach to the present invention proposes a ring tire, or a belt, made of straight, round-profiled bars, the ends of which are welded or vulcanized.
- the prior art for this is as follows: only drive belts that are manufactured in a similar way are known, with weldable elastic materials (polyurethanes) or types of rubber to be glued or vulcanized being used, and thus belts of any length can be produced.
- a deliberate pressure and tension distribution in the ring is not important - the drive belt is usually of a much larger diameter than the diameter of the elastic cords.
- the object of this invention is therefore to propose a technical solution that enables braking with in-line roller skates as on ice - by placing the two roller skates at right angles to the direction of travel.
- a third regime should also be possible - easy turning of the transverse rolling elements when turning on the spot in order to ensure the best maneuverability; d) to solve the stress relaxation problem in the elastic ring tire according to the present invention; e) propose alternative solutions that lead to comparable results by other means;
- the rotatable tire can be stored in rolls, or can only be held in the friction surfaces of the rim.
- the arrangement of the rolling elements for the tire guide can be done in a variety of ways - if you want to restrict yourself to just two rows of rollers, these rollers should be as close as possible to the ideal line to the center of the tire cross-section so that reliable tire guidance is ensured even after the tire has worn out .
- friction surfaces can be used which are made of slidable materials.
- the tire ring must be manufactured using special technology: a straight section of an elastic rod (or hose or spiral) with a round cross-section must be bent and firmly connected at its ends. The result is a tire ring with symmetrical stress distribution that can be easily and evenly rotated around its circular axis / torus axis. Shaping processes are completely unsuitable because this creates a tension-free tire ring, the uneven one Material distribution in the inner and outer areas severely hinders the turning of the tire.
- the fixed connection at the ends of the elastic rod can mean welding, gluing, vulcanizing or also mechanical screwing (or plug-in connection) by means of fastening parts previously let into the rod.
- a rope core previously placed in the tire bar enables assembly in which tires are pushed onto the core.
- the outer surface, the tread of the finished wheel can be made completely or partially stress-free - important because elastic material under tension would otherwise be easily “vulnerable” and would burst on the smallest cracks.
- the compression on the inside of the tire of course continue to increase - but there it does not impair the function.
- a cylindrical spiral spring can be installed in the tire ring instead of a non-stretchable core rope.
- This spring can be inserted tension-free as well as used under considerable tension. In both cases, this counteracts the disturbing effect of the stress relaxation in the elastic material of the tire: Polyurethanes in particular have poorer relaxation properties - a physical process in which the stresses in the material are slowly lost.
- a side development is also possible that uses cylindrical spiral springs made of metal or plastic instead of elastic tire rings.
- the rims only need to have simple semicircular grooves - because there is no abrasion on the spring tire and therefore does not have to be compensated.
- the friction surfaces could ensure the necessary friction ratio through the choice of material and surface quality.
- This variant can only be used on elastic, rubber-like floor coverings that are suitable for sufficient friction with metal springs - especially in the halls.
- the coil is the most effective at relieving stress relaxation, it is also suitable for an elastic polymer version.
- the tread which is interrupted by turns, causes a noticeable driving vibration - but allows a fully functional and inexpensive solution. If the spiral is also cut in a zigzag course, the turns interlock and overlap the gaps - resulting in a smoother process.
- Composite material also helps against the stress relaxation in the tire ring: inserts made of harder, wear-resistant elastomer are sunk into a carrier made of soft, stretchy elastomer or mixed in as particles.
- An inexpensive and manufacturable solution to both tension relaxation and concentricity is promised by an elastic rod made of a soft, stretch-resistant core and an approximately 2-3 mm thick outer layer made of abrasion-resistant Elastomer is applied, and a suitable tire pattern is cut around the rod in this outer layer by means of grooves.
- the depth of the grooves extends to the soft core, and their width and course leave the hard outer layer free of expansion / compression, and at the same time ensure the greatest possible overlap of the gaps. Only the very soft core expands and must master the stress relaxation.
- the proposed wheels with braking function can also be used for "skate boards” and classic quad roller skates, as well as for skis on wheels.
- FIG. 1 shows a ring tire with screw connection, made of composite material.
- FIG. 3 from the cross section of a wheel with a stretched tubular tire that is rotatably mounted in two rows of rollers.
- FIG. 4 isometric illustration of FIG.
- Fig.5ab a wheel with two tires, which are mounted in three rows of rollers Fig.6ab Cross section of a wheel with a stretched ring tire, which is rotatably mounted in friction surfaces
- FIG. 7 a cross-section of a wheel with a stretched ring tire, which is rotatably mounted in two obliquely arranged friction surfaces
- FIG. 8 a ring tire composed of conical disks and a spiral spring
- FIG. 11 isometric view of Fig. 7 with detail
- Fig.12 a wheel with tires, which consists of a cylindrical
- Fig.13 a wheel with a tire, which is formed as a spiral spring made of elastic material Fig.14 a tire which is expanded to form a belt and was pulled over several wheel rims Fig.15 a rod for producing the ring tire, the
- a roller skate is shown in an inclined position, such as e.g. is the case when cornering or braking sideways. All wheels on both skates participate equally in the generation of the braking forces if they are in contact with the ground.
- the slip torque M z is directly dependent on the weight of the runner G, the angle of inclination ⁇ , which reflects the intensity of the steering or braking maneuver, and the radius R of the tire, which in this case is the lever forms.
- the tension relaxation in the elastic material of the tire can help to expand the force limit between slipping when braking and holding the tire when cornering, and thus make it clearer.
- a ring tire (1) can be seen in cross section, which is screwed tightly at its ends.
- the screw (5) is anchored with its ball head (3) rotatably in the ball seat (4) and embedded with it in the elastic rod of the ring tire - overmoulded or vulcanized.
- a screw insert (7) with thread is embedded in the same way - into which the screw (5) is screwed.
- a cross hole (6) in the screw (5) is used to hold a pin tool the screw is turned.
- the ends of the elastic rod contract and form a contact surface - even then the pen tool can still be rotated by pushing the pin against certain force in the contact surface.
- a flat hexagon tool can also be used, according to which a hexagonal position on the screw (5) can be realized.
- the elastic rod for the ring tire (1) is composed of two materials: on the inner relaxation-free carrier (14) there are abrasion-resistant inserts (13) as a tire pattern. Because the gaps in the tire pattern are chosen so that the hard inserts (13) do not have to participate in the expansion and compression of the tire, the problem of stress relaxation only remains for the soft core (14). This core is made of a very soft and stretchy elastomer which can be used to eliminate the relaxation. The tire pattern is also designed in such a way that the gaps overlap as much as possible and thereby achieve a fairly smooth rolling surface.
- Fig. 3 a) b) shows in half cross-section the rotatable mounting of the tire ring (1).
- the tire is under tension and presses itself against the rollers (8) - even if it becomes thinner due to wear
- rollers (8) made of spiral springs are interrupted here - to ensure their greater mobility, because while the tire is twisted in itself, spiral springs have limited torsional capabilities.
- balls or olive-shaped rollers can be used here instead of the springs.
- the tire (1) shows no core inside - it is a tube that has been inflated with compressed air.
- the compressed air can be loaded at the manufacturer as a one-time charge, or it can be pumped up using a nipple embedded in the tire.
- the wall thickness of the hose must be selected in such a way that sufficient function is guaranteed even at the end of use after wear.
- the rim can be made in two parts or in one part. In the latter case, the tire must be stretchable so that it can be mounted on the rim.
- Fig. 5 a) b) shows a special solution with two tires (1), which are stored in three rows of rollers.
- the middle spring roller (9) also serves both tires.
- the tires are self-pulling and thus compensate for wear.
- the arrows indicate the direction of rotation of the two tires (1) and the central roller spring (9).
- Fig. 6 a) b) shows a simplification, which is achieved by using flexible ribs (10). They form holding and sliding elements of the rim, in which the tire (1) is rotatably mounted. The ribs are pre-tensioned and contract when the tire wears. The ribs could also be made straight V-shaped.
- Fig. 7 a) b) shows an advantageous variant that only needs two friction surfaces that are positioned at an angle to one another - when using the self-pulling tire (1).
- the tapered surfaces provide the tire with support both in its initial cross-section (a) and in the reduced cross-section after wear (b).
- the oblique friction surfaces in the rim (2) can be cut straight or be slightly curved.
- the tire can hardly pop out because it is pressed into the V-shaped groove of the rim in every position by its own tensile force and the load forces.
- the angle of inclination of the friction surfaces can deviate slightly from 45 ° in order to influence the braking properties.
- a ring tire composed of individual conical disks (12) can be seen in FIG.
- the washers are rotatably impaled on the spring core (11) and are supported on the inside with their slightly conical side surfaces.
- This arrangement is particularly suitable for making the disks from hard material so that they can be used on rubber floors.
- the rim is then best equipped with a round groove. It is a special form of the solution according to Fig. 12 - only this wheel can be used to perform turning maneuvers particularly well on the spot because each disc can be rotated independently. This would make the wheel suitable for figure skating, especially as the front wheel.
- Fig.9 is a rod made of composite material for the production of the
- Friction-resistant inserts (13) made of a harder polymer are attached to an elastic carrier (14) made of a stretch-free, relaxation-free elastomer.
- the friction-resistant insert (13) is here preferably only of spiral design.
- the stress relaxation is switched off by composite material and is nevertheless a relatively wear-resistant and smooth
- the polymers can both
- the tire ring is made as usual by welding, screwing or vulcanization at the ends of the rod.
- a cavity, as seen in Fig. 9, can also be created and possibly inflated, or equipped with a spring core.
- FIG. 10 shows isometrically the solution according to FIG. 7 a) b) with conical friction surfaces (15) as guide elements - and a tire (1) with the core spring (11).
- the rim can be made in two or even one piece - from a slidable material, e.g. Metal or polyethylene, or Teflon etc.
- a slidable material e.g. Metal or polyethylene, or Teflon etc.
- the tire is manufactured using the technology described, only the core is designed as a spiral spring.
- This coil spring can be easily connected at the ends - by winding a few turns of smaller diameter at one end and inserting them into the other end with force.
- the conical friction surfaces (15) could also be completely designed with balls, each of which is placed in its own seat. As a result, the torsional resistance can be further reduced, which is e.g. is necessary if rubber tires are used instead of polyurethane.
- FIGS. 7 and 10 shows an advantageous modification of the variant in FIGS. 7 and 10.
- the conical friction surfaces are divided into areas that allow sliding - the sliding ribs (16) - and braking surfaces (17), which are roughened.
- the sliding ribs (16) stand out above the braking surfaces (17) - the tire (1) does not touch the braking surfaces (17) under normal load and can therefore be rotated more easily - for example for turning maneuvers on the spot.
- the tire (1) with a core spring (11) is produced according to the described method - but with a cast-in spiral spring and cavity inside.
- the surface of the V-shaped groove can be designed as a sheet metal part in the plastic fig.
- the cavity in the tire could also be filled with compressed air via a simple nipple opening - if this brings advantages, for example to dampen road roughness.
- the friction surface (19) can also be designed as a conical friction surface according to Figure 7 - but does not have to, since there is no wear on the hard spring tires (18). Of course, here too, the friction surface (19) can be divided into different areas in order to achieve certain driving characteristics and braking characteristics.
- Fig. 13 shows a further development of the variant in Fig. 12, wherein a spiral wound tire (20) made of elastic
- This spiral tire is also manufactured according to the same process: first a straight spiral section was bent and welded or vulcanized at the ends, then it is stretched onto the rim slightly stretched.
- Fig. 14 shows an advantageous further development in which a common belt tire (21), like a belt over several rims (2) is mounted.
- the rims have V-shaped grooves, as previously described in Fig.7 - but can also use springs or rollers.
- the floor contact area is much larger due to the straight belt part, which should welcome a special group of off-road skaters - you can also drive on softer grounds. For very soft reasons, such as grassy areas, a widespread belt tire is also conceivable, which then no longer needs to be rotatable - as a special application. Two parallel rows of rotatable belts could also be used for this purpose.
- FIG. 15 shows a rod made of an elastomer for producing the ring tire, which is cut in a spiral shape but zigzag.
- the spiral tire according to Fig. 13 causes a certain uneven running.
- the zigzag spiral (22) has interlocking turns, which partially overlap the spaces between the turns - resulting in a smoother rotation.
Landscapes
- Tires In General (AREA)
Abstract
Une roulette pour patins à roulettes en ligne comprend un pneu en spirale à profil arrondi, monté rotatif dans une gorge en forme de V de la jante. Quand le diamètre des pneus diminue du fait de l'usure, le pneu s'enfonce davantage à l'intérieur de la gorge, ce qui entraîne une compensation automatique de l'usure et un centrage du pneu. Le pneu a été réalisé par soudage aux extrémités d'un segment initialement droit, ce qui lui permet de tourner facilement et régulièrement autour de son axe torique. Normalement, les forces de friction maintiennent le pneu solidement sur la jante. Mais quand les forces latérales, dues par exemple au freinage transversal, sont excessives, le pneu tourne avec une certaine résistance, ce qui produit une décélération. Des formes spéciales sont obtenues quand on agrandit le pneu rotatif jusqu'à en faire une courroie montée sur plusieurs jantes. L'utilisation comme pneu d'un ressort spiralé métallique fermé, sur une garniture recouverte de caoutchouc, est également intéressante. On peut aussi fabriquer un pneu à surface lisse.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU72046/98A AU7204698A (en) | 1997-03-17 | 1998-03-14 | Wheel and belt drive with transversal brake |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19710979 | 1997-03-17 | ||
DE19710979.9 | 1997-03-17 | ||
DE19729939 | 1997-07-12 | ||
DE19729939.3 | 1997-07-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998041295A1 true WO1998041295A1 (fr) | 1998-09-24 |
Family
ID=26034918
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1998/000767 WO1998041295A1 (fr) | 1997-03-17 | 1998-03-14 | Roulette et commande a courroie a frein transversal |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU7204698A (fr) |
WO (1) | WO1998041295A1 (fr) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19932751A1 (de) * | 1999-07-14 | 2001-01-18 | Reinhold Mueller | Stop-Rolle |
AT412384B (de) * | 2003-01-02 | 2005-02-25 | Mario Dr Herzog | Laufrad für ein sportgerät |
WO2006068007A1 (fr) * | 2004-12-20 | 2006-06-29 | Shinichiro Fuji | Roue mobile omnidirectionnelle, dispositif mobile, dispositif de transport et dispositif de massage |
WO2007002971A1 (fr) | 2005-06-30 | 2007-01-11 | Mario Herzog | Roue |
RU2311939C1 (ru) * | 2006-01-31 | 2007-12-10 | Александр Михайлович Клевцов | Ролик для катания |
WO2008132779A1 (fr) * | 2007-04-20 | 2008-11-06 | Honda Motor Co., Ltd. | Dispositif d'entraînement omnidirectionnel et véhicule omnidirectionnel l'employant |
WO2009025567A1 (fr) * | 2007-07-31 | 2009-02-26 | Klevtsov Aleksandr Mikhailovic | Roue pour patins à roulettes et analogues |
US7878284B1 (en) * | 2007-11-29 | 2011-02-01 | Shultz Jonathan D | Omni-directional tread and contiguous moving surface |
WO2011033587A1 (fr) * | 2009-09-18 | 2011-03-24 | 本田技研工業株式会社 | Dispositif d'entraînement à friction et corps mobile de type à pendule inversé |
Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1305535A (en) | 1919-06-03 | Vehicle-wheei | ||
CA475792A (fr) | 1951-08-07 | Souman Teunis | Dispositifs de chargement et de dechargement de trains | |
DE822660C (de) | 1949-12-01 | 1951-11-26 | Dr Christian Fuchs | Rad, das eine unmittelbare Fortbewegung in jeder Richtung gestattet |
US3253632A (en) | 1963-04-25 | 1966-05-31 | Boeing Co | Resilient wheel |
US3789947A (en) | 1972-04-17 | 1974-02-05 | Nasa | Omnidirectional wheel |
US4715460A (en) | 1984-11-20 | 1987-12-29 | International Texas Industries, Inc. | Omnidirectional vehicle base |
DE3702660A1 (de) | 1987-01-29 | 1988-08-11 | Guenter Schneider | Rad |
US4926952A (en) | 1984-05-01 | 1990-05-22 | Jeffrey Farnam | Four-wheel drive wheelchair with compound wheels |
US5213176A (en) | 1989-12-08 | 1993-05-25 | Hitachi, Ltd. | Self-propelled vehicle |
US5246238A (en) | 1992-06-30 | 1993-09-21 | Brown Nathaniel R | Roller skate wheel |
US5312165A (en) | 1992-11-13 | 1994-05-17 | Fpd Technology, Inc. | Combination brake and wheel system for in-line roller skates and the like |
US5383715A (en) | 1991-08-08 | 1995-01-24 | Homma Science Corporation | Wheel provided with sub-wheels |
US5685550A (en) | 1995-06-07 | 1997-11-11 | Mayer, Ii; Bruce Allen | Roller skate with brake |
US5716074A (en) | 1996-04-03 | 1998-02-10 | Theodorou; Katerina | Multi-directional roller skate |
US5720529A (en) | 1996-12-20 | 1998-02-24 | Barron; Bruce J. | Roller skate wheel |
-
1998
- 1998-03-14 WO PCT/DE1998/000767 patent/WO1998041295A1/fr active Application Filing
- 1998-03-14 AU AU72046/98A patent/AU7204698A/en not_active Abandoned
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA475792A (fr) | 1951-08-07 | Souman Teunis | Dispositifs de chargement et de dechargement de trains | |
US1305535A (en) | 1919-06-03 | Vehicle-wheei | ||
DE822660C (de) | 1949-12-01 | 1951-11-26 | Dr Christian Fuchs | Rad, das eine unmittelbare Fortbewegung in jeder Richtung gestattet |
US3253632A (en) | 1963-04-25 | 1966-05-31 | Boeing Co | Resilient wheel |
US3789947A (en) | 1972-04-17 | 1974-02-05 | Nasa | Omnidirectional wheel |
US4926952A (en) | 1984-05-01 | 1990-05-22 | Jeffrey Farnam | Four-wheel drive wheelchair with compound wheels |
US4715460A (en) | 1984-11-20 | 1987-12-29 | International Texas Industries, Inc. | Omnidirectional vehicle base |
DE3702660A1 (de) | 1987-01-29 | 1988-08-11 | Guenter Schneider | Rad |
US5213176A (en) | 1989-12-08 | 1993-05-25 | Hitachi, Ltd. | Self-propelled vehicle |
US5383715A (en) | 1991-08-08 | 1995-01-24 | Homma Science Corporation | Wheel provided with sub-wheels |
US5246238A (en) | 1992-06-30 | 1993-09-21 | Brown Nathaniel R | Roller skate wheel |
US5312165A (en) | 1992-11-13 | 1994-05-17 | Fpd Technology, Inc. | Combination brake and wheel system for in-line roller skates and the like |
US5685550A (en) | 1995-06-07 | 1997-11-11 | Mayer, Ii; Bruce Allen | Roller skate with brake |
US5716074A (en) | 1996-04-03 | 1998-02-10 | Theodorou; Katerina | Multi-directional roller skate |
US5720529A (en) | 1996-12-20 | 1998-02-24 | Barron; Bruce J. | Roller skate wheel |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19932751A1 (de) * | 1999-07-14 | 2001-01-18 | Reinhold Mueller | Stop-Rolle |
AT412384B (de) * | 2003-01-02 | 2005-02-25 | Mario Dr Herzog | Laufrad für ein sportgerät |
WO2006068007A1 (fr) * | 2004-12-20 | 2006-06-29 | Shinichiro Fuji | Roue mobile omnidirectionnelle, dispositif mobile, dispositif de transport et dispositif de massage |
WO2007002971A1 (fr) | 2005-06-30 | 2007-01-11 | Mario Herzog | Roue |
AT502057B1 (de) * | 2005-06-30 | 2007-05-15 | Mario Dr Herzog | Rad |
RU2311939C1 (ru) * | 2006-01-31 | 2007-12-10 | Александр Михайлович Клевцов | Ролик для катания |
WO2008132779A1 (fr) * | 2007-04-20 | 2008-11-06 | Honda Motor Co., Ltd. | Dispositif d'entraînement omnidirectionnel et véhicule omnidirectionnel l'employant |
CN101663194B (zh) * | 2007-04-20 | 2012-10-10 | 本田技研工业株式会社 | 全方向驱动装置及使用其的全方向移动车 |
US8342270B2 (en) | 2007-04-20 | 2013-01-01 | Honda Motor Co., Ltd. | Omni-directional drive device and omni-directional vehicle using the same |
WO2009025567A1 (fr) * | 2007-07-31 | 2009-02-26 | Klevtsov Aleksandr Mikhailovic | Roue pour patins à roulettes et analogues |
US7878284B1 (en) * | 2007-11-29 | 2011-02-01 | Shultz Jonathan D | Omni-directional tread and contiguous moving surface |
WO2011033587A1 (fr) * | 2009-09-18 | 2011-03-24 | 本田技研工業株式会社 | Dispositif d'entraînement à friction et corps mobile de type à pendule inversé |
US8403084B2 (en) | 2009-09-18 | 2013-03-26 | Honda Motor Co., Ltd. | Friction drive device and inverted pendulum type vehicle |
Also Published As
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AU7204698A (en) | 1998-10-12 |
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