WO1996005972A1 - Roulette amelioree pour un patin a roulettes alignees - Google Patents

Roulette amelioree pour un patin a roulettes alignees Download PDF

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Publication number
WO1996005972A1
WO1996005972A1 PCT/US1995/010576 US9510576W WO9605972A1 WO 1996005972 A1 WO1996005972 A1 WO 1996005972A1 US 9510576 W US9510576 W US 9510576W WO 9605972 A1 WO9605972 A1 WO 9605972A1
Authority
WO
WIPO (PCT)
Prior art keywords
lateral
roller skate
line roller
recited
grooves
Prior art date
Application number
PCT/US1995/010576
Other languages
English (en)
Inventor
Scott D. Eaton
Original Assignee
Eaton Scott D
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 Eaton Scott D filed Critical Eaton Scott D
Publication of WO1996005972A1 publication Critical patent/WO1996005972A1/fr

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

Definitions

  • the instant invention relates generally to vehicular tires and more specifically it relates to an improved wheel for an in-line roller skate.
  • a roller skate wheel constructed of- closely bonded laminated material comprising alternate layers of rubber and fabric impregnated with thermo-setting synthetic resin of which latter material the outer layers are composed.
  • a tire having a body and a series of resilient parallel rib members disposed transversely of the peripheral wall of the tire.
  • the rib members are arranged with their front and rear faces at an inclination, in the same direction, to a line tangent at the peripheral wall of the tire.
  • the outer edges of the rib members are preferably rounded, although the edges may also be square and the front and rear faces of adjacent rib members form a rounded or, optionally, a square juncture with the peripheral wall of the tire.
  • the rib members flex in the direction of inclination, under load, irrespective of the direction of the tire rotation.
  • U.S. Patent Number 4,130,320 A roller skate wheel for roller skate, or skateboard use, is provided which is formed of an appropriate yieldable plastic material, such as polyurethane, or other suitable material, which is hard but not brittle, an which will deform when subjected to an impact force. Moreover, the plastic material is such that it will instantly restore itself to its original shape after the force has been removed, and it will not acquire a permanent set in a deformed condition.
  • the gripping capabilities of the wheel are enhanced by the provision of a plurality of spaced peripheral grooves in the rim of the wheel, which form a corresponding plurality of peripheral ribs.
  • a pair of side groves are also provided in the rim of the wheel adjacent to the peripheral surface to permit the end is to bend outwardly and improve the grip of the wheel, especially during turning or cornering.
  • One or more self-contained bearings are imbedded concentrically within the plastic rim of the wheel to permit easy change from one type of wheel to another.
  • the peripheral surface of the rim has either a straight, concave or convex configuration, depending upon the use to which the skate or skateboard is to be put.
  • a skateboard includes conventional carriages and axles supported on the underside thereof. Each axle has a track pivotally supported on either end and each truck includes front and rear wheels. Each of the four trucks is pivotal independently of each of the others and is spring biased in an intermediate position. An endless belt passes around and is supported by the wheels on each of the four trucks.
  • a tire tread of a vehicular tire has, in a peripheral tire direction, a plurality of tread block rows that are separated from one another by waveshaped longitudinal grooves arranged essentially in the peripheral tire direction.
  • the individual tread blocks within each individual tread block row are separated from one another by transverse grooves.
  • the transverse grooves are arranged such that in a left tread half as well as in a right tread half the transverse grooves are aligned with one another.
  • the groove center lines of the transverse grooves at the outer rims of the tire tread are slanted relative to a tire axis at an angle of 3 degrees to 15 degrees.
  • the groove center lines of the transverse grooves of the center tread block rows are slanted relative to the tire axis at an angle of 15 degrees to 50 degrees.
  • the transverse grooves create a design of transversely arranged elongated S-shaped grooves.
  • a skateboard is modified for use on off-road terrain and includes a shock absorber system.
  • the shock absorber system includes a spacer unit having a plurality of shock absorber plates affixed to the deck unit of the skateboard and to which the skateboard axle is pivotally fixed.
  • Shock abosrber wheels are fastened to the skateboard wheels by self- tapping screws extending through a central hub section of the shock absorber wheels and into the skateboard tires.
  • Shock absorber material such as foam material or a helical spring, is located inside the tires of the shock absorber wheels.
  • a pneumatic tire having a tread comprising a plurality of straight-linear main grooves extending in the circumferential direction of the tire and a plurality of sub-grooves extending to shoulder ends of the tire, crossing the main grooves at an inclination.
  • the sub-grooves include a central region of the width of a ground-contact area of the tread, a curved portion which is convex in the direction of rotation of the tire and which is, in the condition of the tire of being mounted on a vehicle, located off the center of the width of the ground-contact area toward an outer side of the vehicle by a distance within a range of 5 to 15% of the width of the ground-contact area.
  • Sub-grooves extending between the curved portion and the shoulder end on an outerside of the vehicle have an angle of inclination Oo relative to the circumferential direction of the tire.
  • Sub-grooves extending between the curved portion and the shoulder end on an inner side of vehicle have an angle of inclination Oi, the angles of inclination Oo and Oi having a Oo/Oi ratio which is greater than 1.1 but is smaller than 1.5.
  • a radial-ply tire for use in passenger cars which comprises a tread portion and two opposite sidewall portions, each of said sidewall portions being formed, at least on an outer surface thereof, from a rubber composition comprising a vulcanizable rubber selected from the group consisting of natural rubber, polyisoprene rubber, butadiene rubber, styrene-butadiene rubber and combinations thereof and an electrically conductive carbon black having a surface area by nitrogen adsorption in the range of from 100 to 150 m 2 /g, a dibutyl phthalate adsorption in the range of from 90 to 130 ml/100 g, a pH in the range of from 7.0 to 8.0 and a volatile content in the range of from 1.0 to 3.0, said carbon black being present in an amount of from 5 to 25 parts by weight per 100 parts by weight of said rubber and said rubber composition having a volume resistivity of not more than 10 4 cm.
  • a vulcanizable rubber selected from the group consisting of natural rubber, polyiso
  • a cut resistant off the road heavy duty pneumatic tire which comprises at least a pair of annular beads, carcass plies containing parallel cord reinforcement wrapped around said beads, a tread disposed in a crown area of said tire over said carcass plies, and sidewalls disposed over said carcass plies between said tread and said beads, wherein said tread and sidewalls have disposed therein 1-20 phr chopped adhesive coated indivisible high modulus monofilament nylon fibers, wherein said fibers have an oblong cross section about 0.051 cm to 0.127 cm (0.020 to 0.050 inches) wide, about 0.013 cm to 0.043 cm (0.005 to 0.017 inches) thick and abut 0.254 cm to 1.27 cm (0.1 to 0.5 inches) long and wherein said monofilament used to make said nylon fibers has a tenacity of at least 6 g/denier, an initial modulus of at least 30g/denier and a shrinkage of not greater thn 5%.
  • a pneumatic tire characterized in that a carcass layer is constructed by arranging non-twisted polyamide monofilament cords each having a flat cross- section such that the major axis of said flat cross- section is disposed along a surface direction of said carcass layer, that said carcass layer is folded up from the inside to the outside of said tire around a bead portion, the thickness thereof becomes smaller toward the distal end thereof.
  • a directional pneumatic tire having improved wet traction is provided.
  • the tire has an annular aqua channel and curved lateral grooves to direct water from the footprint to the shoulder area of the tire to help prevent hydroplaning. It has been found that the tire has a unique footprint which appears to characterize its stability.
  • the footprint comprises two substantially trapezoidal contact patches which are oriented base to base and are separated from each other by 10% to 22% of the total tread width.
  • a primary object of the present invention is to provide an improved wheel for an in-line roller skate that will overcome the shortcomings of the prior art devices.
  • Another object is to provide an improved wheel for an in-line roller skate in which each wheel contains a textured gripping tread surface for an extra gripping ability on wet as well as on dry roads.
  • An additional object is to provide an improved wheel for an in-line roller skate in which each textured gripping tread surface can be made in a variety of patterns on a solid rubber tire, as well as on a rubber tire formed onto a nylon hub.
  • a further object is to provide an improved wheel for an in-line roller skate that is simple and easy to use.
  • a still further object is to provide an improved wheel for an in-line roller skate that is economical in cost to manufacture.
  • FIGURE 1 is a perspective view of an entire roller skate incorporating the instant invention therein.
  • FIGURE 2 is an enlarged side view taken in the direction of arrow 2 in Figure 1, of one wheel showing the textured gripping thread surface.
  • FIGURE 3 is a front view taken in the direction of arrow 3 in Figure 2.
  • FIGURE 4 is an enlarged front view similar to Figure 3, showing another pattern of the textured gripping thread surface.
  • FIGURE 5 is a side view taken in the direction of arrow 5 in Figure 4.
  • FIGURES 6 through 15 are partial front views showing additional patterns of the textured gripping thread surface.
  • Figure 1 illustrates an improved wheel 10 for an in-line roller skate 12 of the type having a boot 14, a sole plate 16, a blade 18 with a plurality of axles 20 for a plurality of the wheels 10.
  • Each wheel 10 consists of a tire 22 to ride upon a road 24.
  • a bearing 26, shown in Figures 2 and 5, for rotation is mounted through the center of the tire 22 for assembly onto one axle 20 in the blade 18.
  • a textured gripping tread surface 28 of the tire 22 is for an extra gripping ability on a wet as well as on a dry road 24, to prevent slipping and sliding.
  • the textured gripping tread surface 28 in Figures 4 and 5, is a first straight pattern 30 having a central circumferential groove 32 and a plurality of lateral grooves 34 extending radially thereabout. Each lateral groove 34 goes transversely across the central circumferential groove 32.
  • the textured gripping tread surface 29 in Figure 6 is a second straight pattern 36 having two spaced apart parallel circumferential grooves 38, 40 and a plurality of lateral grooves 42 extending radially thereabout. Each said lateral groove 42 going transversely across the two circumferential grooves 38, 40.
  • the textured gripping tread surface 28 in Figure 14 is a third straight pattern 44 having three equally spaced apart parallel circumferential grooves 46, 48, 50 and a plurality of lateral grooves 52 extending radially thereabout. Each said lateral groove 52 goes transverse across the three circumferential grooves 46.
  • the textured gripping tread surface 28 in Figures 1, 2 and 3 is a first arrow pattern 54, having a central circumferential groove 56 and a plurality of lateral grooves 58 extending radially thereabout. Each said lateral groove 58 goes at a 45 degree angle away from the central circumferential groove 56.
  • the textured gripping tread surface 28 in Figure 12 is a second arrow pattern 60, having two spaced apart parallel circumferential grooves 62, 64 and a plurality of lateral grooves 66 extending radially thereabout. Each lateral groove 66 goes at a 45 degree angle away from between the two circumferential grooves 62, 64.
  • the textured gripping tread surface 28 in Figure 8 is a third arrow pattern 68 having three equally spaced apart parallel circumferential grooves 70, 72, 74 and a plurality of lateral grooves 76 extending radially thereabout. Each said lateral groove 76 goes at a 45 degree angle away from the second circumferential groove 72.
  • the textured gripping tread surface 28 in Figure 7 is a first offset pattern 78 having a central circumferential groove 80 and a plurality of lateral grooves 82 extending radially thereabout. Each lateral groove 82 goes offset at a 45 degree angle away from the central circumferential groove 80.
  • each lateral groove 90 goes offset at a 45 degree angle away from the two circumferential grooves 86, 88.
  • a center portion 92 of each lateral groove 90 extends transversely across between the two circumferential grooves 86,88.
  • the textured gripping tread surface 28 in Figure 15 is a third offset pattern 94 having three equally spaced apart parallel circumferential grooves 96, 98, 100 and a plurality of lateral grooves 102 extending radially thereabout.
  • Each lateral groove 102 goes offset at a 45 degree angle away from the two outer circumferential grooves 96, 100.
  • Two center portions 104, 106 of each lateral groove 102 extends offset at a 45 degree angle between the three circumferential grooves 96, 98, 100.
  • the textured griping tread surface 28 in Figure 11 is a first double V pattern 108 having a central circumferential groove 110 and a plurality of lateral grooves 112 extending radially thereabout. Each lateral groove 112 goes in a zig-zag path transversely across the central circumferential groove 110.
  • each lateral groove 120 goes in a zig-zag path transversely across the two circumferential grooves 116, 118.
  • FIG. 13 is of a third double V pattern 122 having three equally spaced apart parallel circumferential grooves 124, 126, 128 and a plurality of lateral grooves 130 extending radially thereabout.
  • Each lateral groove 130 goes in a zig-zag path transversely across the three circumferential grooves 124, 126, 128.
  • the tire 22, as best shown in Figure 5, can be made out of one solid complete rubber unit 132, having a central hole 134 therethrough to receive the bearing 26.
  • the tire 22, as best shown in Figure 2 can be made of rubber 136 molded about a nylon hub 138, having a central hole 140 therethrough to receive the bearing 26.

Landscapes

  • Tires In General (AREA)

Abstract

L'invention concerne une roulette améliorée (10) pour un patin (12) à roulettes alignées ayant une chaussure (14) pourvue d'une semelle (16) et d'une lame (18) avec une pluralité d'arbres (20) pour une pluralité de roues (10). Chaque roue (10) comporte un pneumatique (22) qui roule sur le sol (24). Un palier de rotation est monté au centre du pneumatique (22) autour de l'arbre (20) de la lame (18). Une surface de roulement (28) du pneumatique porte un motif en relief pour améliorer l'adhérence, aussi bien sur sol humide que sur sol sec (24), et éviter de glisser et de déraper.
PCT/US1995/010576 1994-08-22 1995-08-18 Roulette amelioree pour un patin a roulettes alignees WO1996005972A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US29384494A 1994-08-22 1994-08-22
US08/293,844 1994-08-22

Publications (1)

Publication Number Publication Date
WO1996005972A1 true WO1996005972A1 (fr) 1996-02-29

Family

ID=23130830

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/010576 WO1996005972A1 (fr) 1994-08-22 1995-08-18 Roulette amelioree pour un patin a roulettes alignees

Country Status (1)

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WO (1) WO1996005972A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19700589A1 (de) * 1996-01-16 1997-11-06 Viktor Dipl Ing Schatz Rad mit einem drehbaren Reifen
US20140215846A1 (en) * 2013-02-07 2014-08-07 Liliana A. Dean Skate dryer and method for using
EP3475104A4 (fr) * 2016-06-24 2020-03-11 Koofy Innovation Limited Véhicule à auto-équilibrage à roue unique avec pneu permettant un mouvement de virage coupé

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485304A (en) * 1947-10-23 1949-10-18 Marsh Edward Samuel Wheel for roller skates and the like
US4045046A (en) * 1976-03-22 1977-08-30 Gary Burton Taylor Skateboard wheel assembly
US4130320A (en) * 1975-11-03 1978-12-19 Anthony Scardenzan Wheel for roller skate or skateboard
US4337961A (en) * 1979-11-16 1982-07-06 Covert William J Skateboard
US5308152A (en) * 1993-07-06 1994-05-03 Diana Ho Wheel unit for in-line roller skate
US5309963A (en) * 1989-10-12 1994-05-10 Sumitomo Rubber Industries, Ltd. Pneumatic tire

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485304A (en) * 1947-10-23 1949-10-18 Marsh Edward Samuel Wheel for roller skates and the like
US4130320A (en) * 1975-11-03 1978-12-19 Anthony Scardenzan Wheel for roller skate or skateboard
US4045046A (en) * 1976-03-22 1977-08-30 Gary Burton Taylor Skateboard wheel assembly
US4337961A (en) * 1979-11-16 1982-07-06 Covert William J Skateboard
US5309963A (en) * 1989-10-12 1994-05-10 Sumitomo Rubber Industries, Ltd. Pneumatic tire
US5308152A (en) * 1993-07-06 1994-05-03 Diana Ho Wheel unit for in-line roller skate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19700589A1 (de) * 1996-01-16 1997-11-06 Viktor Dipl Ing Schatz Rad mit einem drehbaren Reifen
US20140215846A1 (en) * 2013-02-07 2014-08-07 Liliana A. Dean Skate dryer and method for using
US8955233B2 (en) * 2013-02-07 2015-02-17 Liliana A. Dean Skate dryer and method for using
EP3475104A4 (fr) * 2016-06-24 2020-03-11 Koofy Innovation Limited Véhicule à auto-équilibrage à roue unique avec pneu permettant un mouvement de virage coupé

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