EP0707506A1 - Patin a roulettes et roulettes utilisees sur un tel patin - Google Patents

Patin a roulettes et roulettes utilisees sur un tel patin

Info

Publication number
EP0707506A1
EP0707506A1 EP95917227A EP95917227A EP0707506A1 EP 0707506 A1 EP0707506 A1 EP 0707506A1 EP 95917227 A EP95917227 A EP 95917227A EP 95917227 A EP95917227 A EP 95917227A EP 0707506 A1 EP0707506 A1 EP 0707506A1
Authority
EP
European Patent Office
Prior art keywords
roller
rolling surface
section
rollers
longitudinal center
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
EP95917227A
Other languages
German (de)
English (en)
Other versions
EP0707506B1 (fr
Inventor
Axel Kubelka
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.)
MRK Handels AG
Original Assignee
MRK Handels AG
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 MRK Handels AG filed Critical MRK Handels AG
Publication of EP0707506A1 publication Critical patent/EP0707506A1/fr
Application granted granted Critical
Publication of EP0707506B1 publication Critical patent/EP0707506B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • A63C17/04—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
    • A63C17/006—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
    • A63C17/22—Wheels for roller skates

Definitions

  • the present invention relates to a single-track roller running shoe which has a frame connected to a shoe or a plurality of frame sections which can be fastened to this shoe, wherein at least three running rollers are arranged one behind the other on the frame or the frame sections in the running direction, each one along its circumference with respect to the Longitudinal center plane of the rollers have substantially symmetrical rolling surface curved in an axial section.
  • the present invention also relates to rollers for use in such roller shoes.
  • rollers of known roller-skates are arranged one behind the other in a horizontal plane and generally have a rolling surface which is parabolic in axial section, all rollers of a roller-skate being essentially identical.
  • a roller skate in which two middle rollers have a greater width than two front and rear rollers. Viewed from the side, the six rollers are arranged along a concave curve.
  • the rolling surface of all six rollers is designed in the form of cylindrical outer surfaces and therefore has no convex curvature.
  • the aim of the two wider middle rollers is to ensure that the roller skate runs more stably, since only these two rollers touch the ground when walking straight ahead. However, this measure is also insufficient to achieve stable straight running, since only two adjacent ones of the six rollers touch the ground.
  • roller skates have a rolling surface with a convex profile that is continuous in cross section. From various published publications, e.g. US-PS 698 110, DE-PS 1 110 060 or GB-PS 908 566, however, other profile shapes have become known, e.g. Combinations of convex and concave Profu sections that merge into one another via a turning point or a transition edge. However, each roller skate has two identical roles. Furthermore, a roller skate with two wheels is described in DE-PS 827 913, in which two wheels with a rolling surface that is circular in cross section can be exchanged for two wheels with a rolling surface that is rectangular in cross section.
  • An object of the invention is therefore to be seen in improving the cornering behavior of single-track roller skates by simple and inexpensive measures without impairing straight-line running.
  • the rolling surfaces of at least one front Roller and at least one rear roller with respect to an axially parallel tangential plane on the rolling surface at a distance from the longitudinal center plane have a comparatively larger normal distance than the rolling surface of at least one central roller, so that when the roller shoe is tilted sideways with respect to a flat surface, the front and / or rear roller is raised or the contact pressure of these rollers is reduced.
  • a roller running shoe in which the rolling surface of the rollers is convexly curved in an axial section, it is characterized in that the rolling surface of the at least one front and at least one rear roller has a smaller radius of curvature than the longitudinal center plane the rolling surface of the at least one middle roller.
  • the rolling surface of the at least one front or rear roller on both sides of the longitudinal center plane has a lateral surface section that tapers outwards in cross section.
  • the rolling surface of the at least one front or rear roller in the region of the longitudinal center plane has a convexly curved surface section and, on both sides of the longitudinal center plane, on the other hand, has a concave curved lateral surface section.
  • An advantageous embodiment of this variant consists in providing an undercut at the transition between the convexly curved rolling surface and the concavely curved lateral surface section, which undercut forms a transition edge.
  • a further improvement in the steering function of this variant is achieved in that the at least one front or rear roller is designed to be elastically deformable at a distance from the longitudinal center plane.
  • a further advantageous embodiment of a roller running shoe according to the invention results from the fact that the rolling surface of the at least one front and at least one rear roller at a distance from the base has a comparatively smaller width than the rolling surface of the at least one central roller.
  • the rolling surface of the front or rear roller at a distance from the longitudinal center plane has the same radius of curvature as the rolling surface of the at least one central roller.
  • each roller running shoe in which each roller has a cylindrical bearing part which can be fastened to the frame or a frame section and which is connected via a bearing, e.g. a ball bearing, is connected to a Radgro ⁇ er, on the outer surface of which the rolling surface is arranged, is advantageously given in that the bearing part and the Radkö ⁇ er of the at least one central roller is wider than the bearing part and the Radgro ⁇ er a front or rear roller.
  • a bearing e.g. a ball bearing
  • the castors are preferably connected to one another via a frame which has two side surfaces which have a larger internal clearance in the region of the at least one central castor than at their front and rear ends, on which the at least one front or rear castor is arranged .
  • the wheel body of the at least one central roller has a rolling surface which has a convexly curved central section in the region of the longitudinal center plane, which passes over an edge or an inflection point into a flat side section, at which an outside protrudes convex lateral surface section of the rolling surface connects.
  • the wheel body of the at least one central roller has a rolling surface which has a concavely curved central section in the region of the longitudinal center plane, which is curved on both sides of the longitudinal center plane via a turning point or an edge into a convex curve Side section merges.
  • Figure 1 is a schematic side view of an inventive
  • FIG. 2a and 2b show an axial section through a front or rear roller (FIG. 2a) and through a central roller (FIG. 2b) for a roller shoe according to the invention
  • FIG. 3 shows a schematic illustration of the rolling surfaces of a middle and a front or rear roller
  • Figures 4a, 4b, 4c schematic axial sections through front and / or rear
  • Figures 5a, 5b, 5c schematic axial sections through middle rollers for a roller shoe according to the invention
  • Figures 6a and 6b each a schematic bottom view of a frame for a roller skate according to the invention.
  • FIG. 1 a roller running shoe 1 is shown which has a frame 3 connected to a shoe 2, on which four running rollers 4, 5, 6, 7 are arranged one behind the other in the running direction.
  • the rollers are fastened by means of cross bolts 8, 9, 10 11 to corresponding cross bores of the frame 3, the front roller 4 and the rear roller 7 being arranged on this frame 3 in height-adjustable fashion via an eccentric disc 12, 13 each.
  • each roller 4, 5, 6, 7 has a cylindrical bearing part 14, 15, which is connected via a bearing, not shown here, for example a ball bearing, with a Radotro ⁇ er 16, 17, on which along the outer circumference, a rolling surface 18, 19 which is symmetrical with respect to the longitudinal center plane ⁇ is provided, which in the region of this longitudinal center plane ⁇ on a flat bearing surface 20 rests, which forms an axially parallel tangential plane ⁇ with respect to the rolling surface 18, 19 of each roller 4, 5, 6, 7.
  • a bearing not shown here, for example a ball bearing
  • a Radgro ⁇ er 16 17 on which along the outer circumference
  • a rolling surface 18, 19 which is symmetrical with respect to the longitudinal center plane ⁇ is provided, which in the region of this longitudinal center plane ⁇ on a flat bearing surface 20 rests, which forms an axially parallel tangential plane ⁇ with respect to the rolling surface 18, 19 of each roller 4, 5, 6, 7.
  • the main difference between the rollers 4, 7 and 5, 6 is the special shape of the rolling surfaces 18 and 19, the rolling surface 18 of the front and rear rollers 4, 7 at a certain distance from the longitudinal center plane ⁇ a larger normal distance to the tangential plane ⁇ than the middle rollers 5, 6.
  • the different normal distance to the tangential plane ⁇ is produced in that the convexly curved rolling surface 18 has a smaller radius of curvature at a distance from the longitudinal center plane ⁇ than the equally convexly curved one Rolling surface 19.
  • the designation concave and convex used below is always related to the axis a of the rollers 4, 5, 6, 7.
  • the front and rear rollers are lifted off the supporting surface 20 or at least a reduction in the contact pressure on this supporting surface 20 is achieved when tilting laterally from a certain tilt angle.
  • the rolling surface is naturally lifted as a function of the tilt angle and is shown in FIG. 2a by broken and solid lines.
  • the solid line represents a tangent to the rolling surface 18 when tilted by 15 °, 30 ° and 45 °, whereas the dashed lines each represent a tangent to the rolling surface 19 (e.g. that of FIG. 2b) when tilted by the same angle.
  • the difference between the dashed and the solid line is the measure for the lifting of the front and / or rear roller and is given in millimeters in FIG. 2a, namely approx. 0.5 mm at 15 °, approx. 1 mm at 30 ° and approx. 2mm at 45 °.
  • the convexly curved rolling surface 18 of the front or rear rollers 4, 7 merges in the direction a of the rollers on both sides of the longitudinal center plane ⁇ into a concavely curved side surface section 21, 22 of the wheel body 16, the wheel body 16 of a front or rear roller 4 , 7 on its section facing the axis a has essentially the same width as the wheel body 19 of a central roller 5, 6.
  • rollers 4, 5, 6, 7 of a roller skate according to the invention can be retrofitted in conventional roller skates.
  • a front or rear roller 4, 7 and a middle roller 5, 6 are each shown schematically one above the other in FIG.
  • FIG. 3 in order to illustrate the different curvature of the rolling surfaces 18, 19 at a distance from the longitudinal center plane ⁇ .
  • the embodiment of FIG. 3 essentially corresponds to that of FIGS. 2a and 2b with the only difference that the rolling surface 18 of the rollers 4, 7 has a conical outwardly extending lateral surface section 23, 24 on both sides of the longitudinal center plane ⁇ .
  • the tangents to the rolling surface are also shown here for various tiltings (for example 15 °, 30 ° and 45 °) for both the rolling surface 18 and the rolling surface 19.
  • the distance between the respective parallel tangents forms a measure for the lifting of a front or rear wheel with respect to a middle wheel.
  • FIGS. 4a, 4b, 4c show further exemplary embodiments of front or rear rollers 4, 7 for an roller roller shoe according to the invention in an axial section.
  • the roller 4, 7 shown in Figure 4b is basically constructed the same as the roller of Figure 4a, but the rolling surface 18 is less curved and the concave side surface portion 21, 22 is formed as a lateral recess of the Radgro ⁇ ers 16, which has a laterally circumferential groove forms through which the Radgro ⁇ er 16 at a distance from the longitudinal center plane ⁇ , in particular in the region of the transition edges 26, 27 has an increased elasticity.
  • the rolling surface 18 is deformed from a certain tilt angle by the weight of the roller skater in the sense of a greater curvature in the direction of the axis a, so that there is good ground support both when driving straight ahead and when cornering.
  • FIG. 4c shows a front or rear roller 4, 7 in which the rolling surface 18 is even less curved than that of FIG. 4b and no lateral recesses are provided on the roller 4, 7.
  • a roller 4, 7 is in the context of the present invention in connection with a somewhat wider roller (see FIGS. 5a, 5c), so that the rolling surface 18 of the front or rear roller 4, 7 has a comparatively smaller width than the rolling surface 19 of a central roller 5 at a certain normal distance from the tangential surface ⁇ or support surface 20 , 6, in order to bring about the desired lift-off effect again from a certain (generally somewhat larger) tilt angle of the roller running shoe.
  • the rolling surfaces 18, 19 of the front and / or rear and the middle rollers 4, 7, 5, 6 have the same radius of curvature and differ only in the width of the rolling surfaces
  • roller shown in FIG. 4c can also be used as a middle roller 5, 6 with a rolling surface 19 if it is combined with a roller 4, 7 with a comparatively narrower or more strongly curved rolling surface 18, for example that of FIG. 4a ( see Fig. 6a)
  • FIGS. 5a, 5b and 5c show further exemplary embodiments of middle rollers 5, 6 for a roller shoe according to the invention in an axial section
  • the roller 5, 6 shown in Figure 5a has a somewhat wider bearing part 15 and Radkö ⁇ er 17 than the previous exemplary embodiments.
  • the rolling surface 19 of this roller 5, 6 has in the area of the longitudinal center plane ⁇ a convex central central section 28, which merges via an edge 29, 30 into a flat side section 31, 32, which is followed by a convex lateral flat section 33, 34
  • An embodiment of this type, a low-friction straight running of the roller running shoe and a good lifting effect of the front and rear rollers 4, 7 can be achieved
  • FIG. 5b shows a further roller 5, 6, in which the rolling surface 19 has a concavely curved central section 35 which merges into a convexly curved side section 36 37 on both sides of the longitudinal median plane ⁇ , via which the rollers 5, 6 on the Support surface 20 rests
  • a good lifting effect and a low rolling friction in straight running can be achieved
  • FIG. 5c shows a roller 5, 6 for a roller shoe according to the invention, which has the same structure as the roller 4, 7 shown in FIG. 4c, but has a greater width than this FIGS. 6a and 6b show different frames 3, in which rollers 4, 5, 6, 7 according to FIGS. 2 to 5 can be fastened.
  • FIG. 6a shows a conventional, commercially available frame 3 which has parallel side walls 38, 39 with a constant internal distance.
  • a frame 3 is preferably provided with rollers 4, 5, 6, 7, the bearing parts 14, 15 and Radgro ⁇ er 16, 17 all have the same width.
  • the frame 3 shown in FIG. 6b has side walls 40, 41, the internal spacing of which is greater in the region of the central rollers 5, 6 than in the region of the front or rear rollers 4, 7.
  • Such a frame is preferably provided for rollers of different widths.
  • rollers 4, 5, 6, 7 can be combined with one another as desired.
  • all other shapes of the rolling surfaces 18, 19 are included within the scope of the present invention, which enable the front and rear rollers to be lifted when the roller skate is tilted to the side.
  • the rollers can be made of any suitable material in any desired width.
  • casters of the type according to the invention can be used with other steering mechanisms, e.g. an inner wheel steering of an elastic suspension, a steerable suspension of a height adjustment, etc. can be combined to improve the steering effect.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

Patin à roulettes du type à une seule voie, présentant un châssis (3) relié à une chaussure (2), ou plusieurs parties de châssis susceptibles d'être fixées à cette chaussure (2), dans lequel il est prévu, sur le châssis (3) ou sur les parties de châssis, au moins trois roulettes (4, 5, 6, 7) disposées l'une derrière l'autre dans le sens du déplacement, chacune de ces roulettes présentant le long de sa périphérie, une surface de roulement (18, 19) sensiblement symétrique par rapport au plan médian longitudinal des roulettes (4, 5, 6, 7) et incurvée dans une section axiale. Les surfaces de roulement (18) d'au moins une roulette avant (4) et d'au moins une roulette arrière (7) présentent, par rapport à un plan tangentiel ( tau ) parallèle à l'axe, sur la surface de roulement (18), à distance du plan médian longitudinal ( epsilon ), une distance normale relativement plus grande que la surface de roulement (19) d'au moins une roulette médiane (5, 6), de telle façon que lorsque le patin (1) bascule latéralement par rapport au plan tangentiel ( tau ), la roulette avant et/ou arrière (4, 7) soient soulevées, ou bien la pression d'appui exercée par ces roulettes (4, 7) soit réduite.
EP95917227A 1994-05-05 1995-05-05 Patin a roulettes et roulettes utilisees sur un tel patin Expired - Lifetime EP0707506B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT940/94 1994-05-05
AT94094 1994-05-05
PCT/AT1995/000089 WO1995030461A1 (fr) 1994-05-05 1995-05-05 Patin a roulettes et roulettes utilisees sur un tel patin

Publications (2)

Publication Number Publication Date
EP0707506A1 true EP0707506A1 (fr) 1996-04-24
EP0707506B1 EP0707506B1 (fr) 1998-07-29

Family

ID=3503345

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95917227A Expired - Lifetime EP0707506B1 (fr) 1994-05-05 1995-05-05 Patin a roulettes et roulettes utilisees sur un tel patin

Country Status (4)

Country Link
EP (1) EP0707506B1 (fr)
CA (1) CA2166573A1 (fr)
DE (1) DE59502964D1 (fr)
WO (1) WO1995030461A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0858359B1 (fr) * 1995-11-03 2001-03-14 Mrk Handels Ag Patin a roulettes du type a une seule voie et roulettes utilisees sur un tel patin
IT242171Y1 (it) * 1996-05-31 2001-06-04 Roces Srl Telaio per pattini a rotelle longitudinalmente allineate.
US5676428A (en) * 1996-06-24 1997-10-14 9035-0687 Quebec Inc. Wheel assembly for in-line skate
US7523948B1 (en) * 2008-01-03 2009-04-28 Stanton Wright In-line skate

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE478560A (fr) * 1947-01-10
CH615352A5 (en) * 1976-02-20 1980-01-31 Claim Int Ag Single-track roller-skate
JPH01180276U (fr) * 1988-06-08 1989-12-25

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9530461A1 *

Also Published As

Publication number Publication date
WO1995030461A1 (fr) 1995-11-16
DE59502964D1 (de) 1998-09-03
EP0707506B1 (fr) 1998-07-29
CA2166573A1 (fr) 1995-11-16

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