EP1675661B1 - Lenkvorrichtung für sportartikel mit stütz- und gleitelementen in einer inline-anordnung - Google Patents

Lenkvorrichtung für sportartikel mit stütz- und gleitelementen in einer inline-anordnung Download PDF

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Publication number
EP1675661B1
EP1675661B1 EP04741524A EP04741524A EP1675661B1 EP 1675661 B1 EP1675661 B1 EP 1675661B1 EP 04741524 A EP04741524 A EP 04741524A EP 04741524 A EP04741524 A EP 04741524A EP 1675661 B1 EP1675661 B1 EP 1675661B1
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EP
European Patent Office
Prior art keywords
supporting
steering device
chassis
wheels
carriage
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.)
Expired - Lifetime
Application number
EP04741524A
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English (en)
French (fr)
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EP1675661A1 (de
Inventor
Andrea Battocchio
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MGM SpA
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MGM SpA
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Publication date
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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
    • A63C17/04—Roller skates; Skate-boards with wheels arranged otherwise than 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
    • A63C17/061—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type with relative movement of sub-parts on the chassis
    • A63C17/062—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type with relative movement of sub-parts on the chassis with a pivotal frame or cradle around transversal axis for relative movements of the wheels
    • 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
    • A63C17/006—Roller skates; Skate-boards with wheels of different size or 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
    • A63C17/0093—Mechanisms transforming leaning into steering through an inclined geometrical axis, e.g. truck
    • 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
    • A63C17/04—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
    • A63C17/061—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type with relative movement of sub-parts on the chassis
    • A63C17/064—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type with relative movement of sub-parts on the chassis comprising steered wheels, i.e. wheels supported on a vertical axis

Definitions

  • the present invention refers to a steering device for sports articles adapted to slide on a supporting surface by means of a plurality of supporting and sliding elements provided in an in-line arrangement, i.e. aligned along a same longitudinal axis.
  • These sports articles which may for instance be constituted by in-line roller skates, ski-rolls, scooters, sledges, ski-scooters and the like, are intended for sliding either on the ground by rolling thereupon, or on a snow blanket or ice by gliding thereupon.
  • US 5,022,668 upon which the preamble of claim 1 is based, discloses a skateboard axle mounting apparatus having a base, a support element attached to the base for securely receiving a skateboard axle, and a mounting bracket for attaching the base to a friction-reducing accessory, such as a snow ski or a roller/belt assembly.
  • the skateboard axle is attached to a platform by means of a pivotable truck designed to cause the skateboard to turn to one side or the other when pressure is applied unevenly to the wheels, or other mounted accessories, thus allowing the user to steer the board by leaning his weight to one side or the other.
  • a major drawback of this prior-art approach lies in the poor stability of the skate, as well as in the difficulty that is encountered when trying to obtain a continuous, smooth curving effect owing to the distance existing from the front wheel to the rear wheel.
  • both of them are actually provided with a steering device of their own, the two wheels are situated too far from each other to be able to arrange themselves according to such an ideal arc of curvature as to enable the skater to curve in a smooth, continuous manner.
  • the skater is forced to intervene with a number of progressive adjustments of the trajectory so as to be able to move over the entire curve, which is therefore performed and completed in a discontinuous manner.
  • the forks when performing a curving manoeuvre the forks may be subject to vibrations due to the quite significant stresses acting upon each wheel, and these vibrations may bring about a substantial instability of the skate, with a resulting difficulty being found in leading and running the skate with the due accuracy exactly during such a critical phase as the one implying a curve, i.e. a change of direction.
  • a further drawback lies in the fact that the steering device of the above-cited prior-art solution is only capable of working in connection with wheels having a flat tread. In fact, it is by inclining the chassis sideways that a change of direction is obtained, thereby determining a reaction of the supporting surface on the wheels, which eventually relieves itself onto the pins that pivotally connect the forks to the support members, thereby causing the forks themselves to rotate relative to the corresponding support members.
  • a purpose of the present invention is to provide a steering device, which enables a change of direction, i.e. a curve, to be performed in a smooth and continuous manner, while maintaining full stability and control of the article throughout the period in which said manoeuvre is being performed.
  • Another purpose of the present invention is to provide a steering device, which is capable of working in an optimum manner even in currently marketed sports articles, without any limitation whatsoever as far as the number and the characteristics and features of the supporting and sliding members thereof are concerned.
  • the steering device of the invention must be capable of working in an optimum manner in those articles that are provided with wheels as supporting and sliding members having a curved tread thereof, such as for instance in-line roller skates and scooters.
  • a further, equally important purpose of the present invention is to provide a steering device at competitive costs, which is in addition capable of being manufactured with the use of existing techniques and equipments.
  • a steering device for sports articles adapted to slide on a supporting surface by means of a plurality of supporting and sliding elements provided in an in-line arrangement, i.e. aligned along a same longitudinal axis, which incorporates the characteristics as recited in the appended Claim 1.
  • the reference numeral 1 is used there to generally indicate a sports article adapted to slide on a supporting surface 2 by means of a plurality of supporting and sliding elements 3 aligned along a same longitudinal axis 4 or, in other words, provided in an in-line arrangement.
  • the sports article is constituted by a skate 1 provided with at least three, and preferably four, wheels 3 that perform as the elements on which the skate is capable of supporting and sliding on a supporting surface formed by the ground 2; the wheels 3 are provided in an in-line arrangement and have a curved tread.
  • the skate 1 comprises a chassis 5 supporting in a known manner a footwear (not shown) provided thereupon, wherein at least a carriage 6a provided to support at least a pair of wheels 3 is associated to said chassis.
  • This carriage 6a is associated to the chassis 5 in a manner as to be able to swing about an axis 7 inclined at an angle ⁇ relative to the ground 2 and lying substantially on the longitudinal median plane of the chassis as defined by the longitudinal axis 4.
  • the chassis 5 has, approximately in correspondence to at least an end portion 8a thereof, a support member 9 provided with a first through-hole 10 and having at least a surface 9a inclined relative to the ground 2 by an angle ⁇ , which is preferably complementary to the angle ⁇ .
  • the carriage 6a has an arm 11 for the connection thereof to the support member 9, said arm being provided with a second through-hole 12 and having a surface 11a facing towards and counter-shaped, i.e. shaped complementarily, to the surface 9a. From this arm 11 there extend, on respective, mutually opposite sides, a first and a second fork 13, 14, each one of which pivotally supports a wheel 3 in correspondence to respective support axes 25, 26.
  • connecting means such as a threaded pin 15 or the like, for pivotally connecting the carriage 6a to the support member 9; the pin 15 is locked with the aid of appropriate locking means, such as a lock-nut or bolt 16.
  • the configuration of the carriage 6a and the support member 9, along with the arrangement of the related connection, is such as to ensure that the supporting and sliding elements, i.e. the two wheels 3 in this case, are supported by the carriage 6a in a manner that is substantially parallel to the supporting surface 2, which is formed by the ground in this case, on opposite sides with respect to the pivoting centre 27 of the carriage 6a relative to the chassis 5, as defined by the pin 15 and the second hole 12.
  • Appropriate elastic means 17, 18 interacting with the arm 11 are provided to elastically contrast the swinging motion of the carriage 6a with respect to the chassis 5.
  • the above-cited elastic means 17, 18 are housed within respective accommodations 19, 20 provided in the support member 9; they are further provided with respective apertures 21, 22 for the insertion therethrough of respective projections 23, 24 extending from the arm 11.
  • the accommodation of these elastic contrasting means 17, 18 turns out as being extremely compact and fully contained within the carriage 6a.
  • the degree of elasticity of said elastic means 17, 18 may be varied with the help of appropriate adjustment means or by simply replacing said elastic means 17, 18 with other means having a different elasticity rating as required.
  • the swinging axis 7 preferably extends approximately in correspondence to or above the support axis 25 of the supporting and sliding element 3 situated in the neighbourhood of the middle portion of the chassis 5.
  • a steering device comprising a single carriage 6a.
  • a preferred embodiment of the device calls for the utilization of two carriages 6a, 6b provided in an arrangement in which they symmetrically oppose each other, approximately in correspondence to the end portions 8a, 8b of the chassis 5, wherein each such carriage supports a pair of wheels 3.
  • the operation of the device is as follows: from the position that is held when the article, i.e. the skate in this case, follows a rectilinear path, in which the supporting and sliding elements are arranged aligned along the longitudinal axis 4 ( Figure 5 ), a change in direction is obtained by the effect of a sidewise inclination that the user imparts to the article; this motion causes the carriages 6a, 6b to rotate with respect to the chassis 5 in opposite directions about the swinging axis 7 against the action of the elastic means 17, 18, as this is best shown in Figure 6 .
  • the supporting and sliding elements 3 are able to arrange themselves along two incident axes that can be assimilated to an arc of a circle owing to the contiguousness of the same supporting and sliding elements 3.
  • Such an arrangement makes it possible for the change in direction to be performed in a smooth and continuous manner, thereby enabling the user to maintain the stability and the control of the article throughout the phase during which such manoeuvre, i.e. the change in direction, is being performed.
  • the steering device according to the present invention is reliable and safe in use, while enabling the user to perform even sudden, abrupt changes of direction in a smooth and continuous manner and maintaining full stability and control of the article throughout the phase during which such manoeuvre, i.e. the change in direction, is being performed.
  • the front carriage 6a rotates in the direction of curvature, while the rear carriage 6b rotates in the opposite direction, in such a manner as to approximately define an arc of a circle, as shown in Figure 6 , which substantially corresponds to the arc of the curve that must be performed.
  • the conformation of the wheels 3 provided with a curved tread 28, which allows the article to incline, i.e. to move into its inclined posture as required in view of enabling the steering device according to the present invention to properly operate, allows for the same steering device to be used practically on all sports articles that are currently marketed with the afore-indicated features.
  • the embodiments shown in Figures 7 , 8 and 9 refer to a steering device as described above applied to a sports article, such as a roller skate 101, 201, 301, having a plurality of supporting and sliding elements, such as wheels 103, 203, 303, of different size.
  • a steering device according to the present invention as applied to an in-line roller skate, but it is understood that the steering device can be evenly applied to any sports article having a plurality of supporting and sliding elements of a different size arranged along a line.
  • Figure 7 shows an arrangement for the supporting and sliding elements comprising four wheels 103 wherein the front wheel 103a and the third wheel 103c are smaller in diameter than the second wheel 103b and the rear wheel 103d; the wheels 103a and 103b are supported on respective first support axis 125a and 126a by a first carriage 106a which is associated to a chassis 105 in a manner as to be able to swing about a first axis 107a as already described above; similarly, the wheels 103c and 103d are supported on respective second support axis 125b and 126b by a second carriage 106b associated to the chassis 105 so as to be able to swing about a second axis 107b having an inclination in respect to a supporting surface 102 which is opposite to the inclination of the first axis 107a.
  • the line 130a connecting the first support axis 125a and 126a is slightly inclined in respect to the supporting surface 102; due to the particular wheel arrangement of this embodiment, the line 130b connecting the second support axis 125b and 126b is inclined along the same direction of line 130a.
  • This specific wheel arrangement achieves an increase in the acceleration of the skate, especially when starting, thanks to the provision of the smaller front wheel 103a which rotates at a higher rotational speed and it has a lower inertia.
  • the third embodiment shown in Figure 8 refer to a different arrangement for the wheels, wherein the central wheels 203b and 203c are smaller in diameter that the front wheel 203a and the rear wheel 203d; in this case, the lines 230a and 230b connecting, respectively, the first support axis 225a, 226a and the second support axis 225b, 226b are oppositely inclined in respect to the supporting surface 202 in order to allow all the wheels to contact the supporting surface 202 along the same plane.
  • This arrangement provides the skater with a more stable balance: in fact, the centre of balance, which is determined by the height of the ball of the foot in respect to the ground, can be lowered since the smaller second wheel 203b located under the ball of the foot allows to lower the height of the chassis 205, and in particular the height of the sole plate which supports the sole of the footwear, thus getting the foot closer to the ground.
  • Figure 9 shows a further arrangement for the wheels 303, providing the front wheels 303a and 303b of a smaller diameter than the rear wheels 303c and 303d; with this arrangement the lines 330a and 330b connecting, respectively, the first support axis 325a, 326a of the front wheels 303a, 303b, and the second support axis 325b, 326b of the rear wheels 303c, 303d, are arranged parallel to the supporting surface 302 but mutually located at different heights in respect to said supporting surface 302.
  • This wheel arrangement enhances the characteristics of acceleration of the skate, thanks to the provision of the smaller wheel 303a at the front of the skate as explained above, as well as of stability thanks to the second smaller wheel 303b located under the ball of the foot which allows to lower the centre of balance of the skater; in addition, the larger wheels 303c and 303d at the rear have an influence on the efficiency of the skate, allowing to maintain the speed acquired through the higher acceleration at a substantially constant value with a relative low power supply from the skater.

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  • Motorcycle And Bicycle Frame (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Details Of Garments (AREA)

Claims (15)

  1. Lenkvorrichtung für Sportartikel (1, 101, 201, 301), die so eingerichtet sind, dass sie auf einer Tragefläche (2, 102, 202, 302) mittels einer Vielzahl von Trage-und-Gleit-Elementen (3, 103, 203, 303) gleiten, die entlang einer Mittel-Längsebene (4) angeordnet sind, wobei die Lenkvorrichtung ein Chassis (5, 105, 205, 305) umfasst, mit dem wenigstens ein Fahrgestell (6a, 6b, 106a, 106b, 206a, 206b, 306a, 306b) verbunden ist, das wenigstens zwei der Trage-und-Gleit-Elemente (3, 103, 203, 303) an jeweiligen Trageachsen (25, 26, 125, 126, 225, 226, 325, 326) trägt, die im Wesentlichen parallel zu der Tragefläche (2, 102, 202, 302) angeordnet sind, wobei das Fahrgestell (6a, 6b, 106a, 106b, 206a, 206b, 306a, 306b) so eingerichtet ist, dass es gegen die Kraft elastischer Einrichtungen (17, 18) relativ zu dem Chassis (5, 105, 205, 305) um eine Schwenkachse (7, 107a, 107b, 207a, 207b, 307a, 307b) herum geschwenkt wird, die in einem Winkel α in Bezug auf die Tragefläche (2, 102, 202, 302) geneigt ist und im Wesentlichen auf der Mittel-Längsebene (4) des Chassis (5, 105, 205, 305) liegt, die Trageachsen (25, 26, 125, 126, 225, 226, 325, 326) relativ zu dem Chassis an einander gegenüberliegenden Seiten in Bezug auf den Schwenkmittelpunkt (27, 127, 227, 327) des Fahrgestells (6a, 6b, 106a, 106b, 206a, 206b, 306a, 306b) angeordnet sind, die Schwenkachse (7, 107a, 107b, 207a, 207b, 307a, 307b) in einem Winkel α, der größer ist als 0° und kleiner ist als 90°, in Bezug auf die Tragefläche (2, 102, 202, 302) geneigt ist und sich an oder oberhalb der Trageachse (25, 125, 225, 325) des Trage-und-Gleit-Elementes (3, 103, 203, 303) erstreckt, das an den Mittelabschnitt des Chassis (5, 105, 205, 305) angrenzend angeordnet ist, dadurch gekennzeichnet, dass das Chassis (5, 105, 205, 305) ungefähr an wenigstens einem seiner Endabschnitte (8a, 8b) ein Trageelement (9) aufweist, das mit wenigstens einer Fläche (9a) versehen ist, die in einem Winkel β relativ zu der Tragefläche (2, 102, 202, 302) geneigt ist, wobei der Winkel β vorzugsweise komplementär zu dem Winkel α ist, das Fahrgestell (6a, 6b, 106a, 106b, 206a, 206b, 306a, 306b) mit einem Arm (11) zur Verbindung mit dem Trageelement (9) versehen ist, wobei der Arm eine Fläche (11a) aufweist, die der Fläche (9a) des Trageelementes (9) zugewandt und ihr entgegengesetzt geformt ist, d.h. komplementär zu ihr geformt ist.
  2. Lenkvorrichtung nach Anspruch 1, wobei sich von einander gegenüberliegenden Seiten in Bezug auf den Arm (11) eine erste und eine zweite Gabel (13, 14) erstrecken, die jeweils ein entsprechendes der Trage-und-Gleit-Elemente (3, 103, 203, 303) an den Trageachsen (25, 26, 125, 126, 225, 226, 325, 326) tragen.
  3. Lenkvorrichtung nach einem der vorangehenden Ansprüche oder einer Kombination derselben, wobei die elastischen Einrichtungen (17, 18) mit dem Arm (11) in Wechselwirkung treten, um der Schwenkbewegung des Fahrgestells (6a, 6b, 106a, 106b, 206a, 206b, 306a, 306b) elastisch entgegenzuwirken.
  4. Lenkvorrichtung nach Anspruch 3, wobei die elastischen Einrichtungen (17, 18) in entsprechenden Aufnahmen (19, 20) aufgenommen sind, die in dem Trageelement (9) vorhanden sind, und sie mit entsprechenden Vorsprüngen (23, 24) zusammenwirken, die sich von dem Arm (11) aus erstrecken.
  5. Lenkvorrichtung nach einem der vorangehenden Ansprüche oder einer Kombination derselben, wobei mit dem Chassis (5, 105, 205, 305) ein erstes und ein zweites Fahrgestell (6a, 6b, 106a, 106b, 206a, 206b, 306a, 306b) verbunden sind, die ungefähr an den Endabschnitten (8a, 8b) des Chassis (5, 105, 205, 305) angeordnet sind, so dass jedes Fahrgestell ein Paar der Trage-und-Gleit-Elemente (3, 103, 203, 303) trägt.
  6. Lenkvorrichtung nach Anspruch 5, wobei das erste und das zweite Fahrgestell (6a, 6b, 206a, 206b) so angeordnet sind, dass sie einander symmetrisch gegenüberliegen.
  7. Lenkvorrichtung nach Anspruch 5, wobei die Trage-und-Gleit-Elemente (3, 103, 203, 303) durch wenigstens vier Räder gebildet werden.
  8. Lenkvorrichtung nach Anspruch 7, wobei die Räder (3, 103, 203, 303) unterschiedliche Größe haben.
  9. Lenkvorrichtung nach Anspruch 5, wobei die Linien (30, 330a, 330b), die die Trageachsen (25, 26, 325a, 326b, 325a, 326b) der Trage-und-Gleit-Elemente (3, 303) verbinden, parallel zu der Tragefläche (2, 302) angeordnet sind.
  10. Lenkvorrichtung nach den Ansprüchen 8 oder 9, wobei wenigstens zwei vordere Räder (303a, 303b), die sich an der Vorderseite des Chassis (305) befinden, einen kleineren Durchmesser haben als wenigstens zwei hintere Räder (303c, 303d), die sich an der Rückseite des Chassis (305) befinden, und die Linie (330a), die die Trageachsen (325a, 326a) der vorderen Räder (303a, 303b) verbindet, sich näher an der Tragefläche (302) befindet als die Linie (330b), die die Trageachsen (325b, 326b) der hinteren Räder (303c, 303d) verbindet.
  11. Lenkvorrichtung nach Anspruch 8, wobei die Linien (130a, 130b, 230a, 230b), die die Trageachsen (125a, 126a, 225a, 226b) der Räder (103, 203) verbinden, in Bezug auf die Tragefläche (102, 202) geneigt angeordnet sind.
  12. Lenkvorrichtung nach den Ansprüchen 8 und 11, wobei das vordere Rad (103a) und das dritte Rad (103c) von der Vorderseite des Chassis (105) aus einen kleineren Durchmesser haben als das zweite Rad (103b) und das hintere Rad (103d) und die Linien (130a, 130b) in der gleichen Richtung geneigt sind.
  13. Lenkvorrichtung nach den Ansprüchen 8 und 11, wobei die Räder (203b, 203c), die sich mittig im Mittelabschnitt des Chassis (205) befinden, einen kleineren Durchmesser haben als das vordere Rad (203a) und das hintere Rad (203d) und die Linien (230a, 230b), die die ersten Trageachsen (225a, 226a) bzw. die zweiten Trageachsen (225b, 226b) verbinden, in Bezug auf die Tragefläche (202) entgegengesetzt geneigt sind.
  14. Sportartikel, der zum Gleiten auf einer Tragefläche mittels einer Vielzahl von Trage-und-Gleit-Elementen eingerichtet ist, die entlang ein und derselben Längsachse ausgerichtet sind, dadurch gekennzeichnet, dass er eine Lenkvorrichtung nach Anspruch 1 umfasst.
  15. Sportartikel nach Anspruch 14, wobei die Trage-und-Gleit-Elemente Räder, Eiskufen oder Kurzski umfassen.
EP04741524A 2003-10-20 2004-05-06 Lenkvorrichtung für sportartikel mit stütz- und gleitelementen in einer inline-anordnung Expired - Lifetime EP1675661B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000076A ITPN20030076A1 (it) 2003-10-20 2003-10-20 Dispositivo sterzante per attrezzi sportivi provvisti
PCT/EP2004/050727 WO2005039710A1 (en) 2003-10-20 2004-05-06 Steering device for sports articles provided with supporting and sliding elements in an in-line arrangement

Publications (2)

Publication Number Publication Date
EP1675661A1 EP1675661A1 (de) 2006-07-05
EP1675661B1 true EP1675661B1 (de) 2009-06-24

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Country Link
US (1) US20070205569A1 (de)
EP (1) EP1675661B1 (de)
KR (1) KR20060096010A (de)
CN (1) CN1871050A (de)
AT (1) ATE434471T1 (de)
DE (1) DE602004021710D1 (de)
IT (1) ITPN20030076A1 (de)
WO (1) WO2005039710A1 (de)

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BRPI0504027B1 (pt) 2005-09-22 2016-04-19 Rollerboard Comércio De Artigos Esportivos Ltda Epp prancha sobre rodas com rodas diferenciadas centralizadas em linha
DE102007031237B4 (de) * 2007-07-05 2009-05-07 Gorisch, Wolfram, Dr. Kippwinkel-gelenktes Rollgerät mit versetzten Rollen
KR101118046B1 (ko) * 2009-10-26 2012-03-13 지영학 부들, 조릿대, 갈대 및 줄풀을 포함하는 한방음료
US9233701B2 (en) * 2012-12-15 2016-01-12 Jeffrey L. Glover Foot-powered scooters having enhanced stability, turning and control

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CA2441754A1 (en) * 2003-09-19 2005-03-19 Sport Maska Inc. In-line skate wheels and wheel frame assembly

Also Published As

Publication number Publication date
US20070205569A1 (en) 2007-09-06
ATE434471T1 (de) 2009-07-15
ITPN20030076A1 (it) 2005-04-21
DE602004021710D1 (de) 2009-08-06
KR20060096010A (ko) 2006-09-05
CN1871050A (zh) 2006-11-29
WO2005039710A1 (en) 2005-05-06
EP1675661A1 (de) 2006-07-05

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