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WO1993012944A1 - Dispositif de traction pour roue - Google Patents

Dispositif de traction pour roue Download PDF

Info

Publication number
WO1993012944A1
WO1993012944A1 PCT/CA1992/000564 CA9200564W WO9312944A1 WO 1993012944 A1 WO1993012944 A1 WO 1993012944A1 CA 9200564 W CA9200564 W CA 9200564W WO 9312944 A1 WO9312944 A1 WO 9312944A1
Authority
WO
WIPO (PCT)
Prior art keywords
traction device
tire
traction
ground
openings
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.)
Ceased
Application number
PCT/CA1992/000564
Other languages
English (en)
Inventor
Corby H. Stanley
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1993012944A1 publication Critical patent/WO1993012944A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C27/00—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels
    • B60C27/06—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables
    • B60C27/16—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over the complete circumference of the tread, e.g. made of chains or cables formed of close material, e.g. leather or synthetic mats

Definitions

  • This invention relates to a traction device for a motor vehicle tire, in particular, for improving the traction between the tire and a slippery or wet surface.
  • Certain tires are usually not suitable for use in snowy road conditions and it has been the practice to put standard chains or cable chains on tires for use on snow covered surfaces. The fitting of such cables or chains is cumbersome and time consuming.
  • An alternative is to provide specially designed snow tires which can be fitted to a vehicle for use during winter conditions but these tires need to be removed and replaced with normal tires for normal use.
  • the prior art traction devices generally comprise relatively thick casings, which although flexible, are not elastic or easily stretchable in the longitudinal direction, i.e. circumferentially of the tire around which the traction device is fitted.
  • the applicant has found that by providing a traction device which is elastic at least in the longitudinal direction but preferably also in other directions, and which is relatively thin and fitted onto a tire by means of a stretch fit, provides a traction device which hugs the tire and resists becoming dislocated from the tire during use and which, on the other hand, is easily installed on a tire, without the necessity of lifting the tire from the ground surface.
  • the applicant has also found that it is advantageous to provide openings in the traction device which expose the tread of the tire therethrough.
  • a removable traction device for a tire comprising an elongate member for fitting around the tire along the ground-engaging tread of the tire and having an inner surface for contact with the ground-engaging tread of the tire and an outer surface which is provided with traction assistance means thereon and wherein the member has a thickness of no greater than about 5 mm and is elastic in its longitudinal direction.
  • the member preferably has a thickness of from about 0.75 to about 3.5 mm. According to one preferred embodiment, the member may have a thickness of about 1 mm.
  • the elongate member may be in the form of an endless belt operable to be placed around the tire in a stretch fit.
  • the member resembles a conventional inner tube with respect to the material from which it is manufactured and its thickness.
  • the traction assistance means may comprise a plurality of protrusions distributed over the outer surface of the member.
  • the member and the protrusions may be integrally molded from an elastomeric material.
  • the protrusions may comprise metallic members which are attached to the outer surface of the member.
  • the traction assistance means may comprise one or more ridges extending in transverse directions along the outer surface of the member.
  • At least one opening may be provided in the member between the inner and the outer surfaces thereof.
  • a plurality of openings is provided between the inner and the outer surfaces.
  • a removable traction device for a tire comprising an annular member of an elastomeric material for fitting around the tire and having an inner surface for contact with the ground-engaging tread of the tire and an outer surface for ground contact and further comprising a circumferentially extending rib on the inner surface of the member.
  • the rib is preferably elastic in its longitudinal direction.
  • a pneumatic tire having sidewalls and a ground-engaging tread between the sidewalls and a removable traction device for the tire comprising an annular member of an elastomeric material for fitting around the tire and having an inner surface for contact with the ground-engaging tread of the tire and an outer surface for ground contact, wherein the tire and the traction device are provided with mating formations for locating the traction device in position on the tire.
  • Figure 1 is a side view of a traction device, according to the invention, shown mounted on a tire;
  • Figure 2 is an end view of the traction device of Figure 1;
  • Figure 3 is a section taken along the lines - in Figure 2;
  • Figure 4 is a section taken along the lines IV-IV in Figure 2.
  • reference numeral 10 generally indicates a traction device which is in the form of an annular member or cover 12 for fitting around a vehicle tire 14 over the traction surface of the tire 14.
  • the cover 12 effectively forms an outer skin around the tire 14, covering the tread 15 of the tire 14 and part of the sidewalls 17 of the tire 14.
  • the cover 12 has an inner surface 12.1 and an outer surface 12.2.
  • the cover 12 is preferably of an elastomeric material, such as rubber or a synthetic rubber or any other suitable synthetic plastics material.
  • the cover 12 may be of the same material as a conventional inner tube and of a thickness similar to that of a conventional inner tube.
  • the cover is elastic in the longitudinal or circumferential direction, as indicated by the arrow 16 in Figure 1.
  • a material which has been found suitable for the cover 12 is the type of butyl rubber from which commercially available inner tubes are made and which is stretchable in all directions
  • the cover 12 may be of a thickness in the order of 1/32 inch (0.80 mm), such as the thickness of a standard type inner tube, MR 14/15, to fit fourteen or fifteen inch rims.
  • the purpose of the elastomeric property of the cover in the circumferential direction is to assist the grip of the cover 12 on the tire 14, to counteract dislodgement or removal of the cover 12 during use, for example, as a result of centrifugal forces generated by the rotating tire.
  • the cover 12 is provided in different sizes to fit different sizes of commercially available tires.
  • the arrangement is preferably such that, in each instance, the cover will form a stretch fit around the particular tire size for which it is intended.
  • the cover 12 is provided with a circumferential rib 18 extending along the centre thereof.
  • the rib 18 is elastic in its longitudinal direction and is pre-stressed for a particular tire size.
  • the rib 18 may be integrally moulded with the cover 12, as shown in Figures 3 and 4, or it may comprise a cord of a suitable stretchable material, such as natural rubber or neoprene rubber, which is attached by means of a suitable adhesive to the inner surface 12.1 of the cover 12.
  • a cord of 1/4 inch (6.35 mm) diameter has been found to be satisfactory.
  • a wetsuit repair glue has been found to be a suitable adhesive because of its properties of bonding rubber or neoprene very well under stretch conditions.
  • the inner surface 12.1 of the cover 12 is treated with an emery cloth or abrasive to give a strong bond between the rib 18 and the cover 12.
  • the cord may be cut in half longitudinally.
  • the rib 18 also assists in locating the cover 12 in position on the tire 14. This is particularly so if the cover 12 is used with a commercially available tire such as produced by GOODYEARTM under the name of AQUATREDTM, which tire is provided with a centrally located circumferentially extending recess 20, such as shown in Figures 3 and 4.
  • cover 12 is intended for use with any commercially available tire or with a tire having a circumferential groove
  • tire and cover combinations may be manufactured in which the tire and cover are provided with mating formations for locating the cover in position on the tire and for assisting the grip of the cover on the tire.
  • a plurality of recesses may be provided on the tire to engage with mating projections on the cover.
  • the cover 12 is provided with traction assistance means in the form of a plurality of transverse ridges or ribs 21.
  • the ribs 21 may be integrally moulded with the cover 12 or alternatively the ribs 21 may be attached by means of a suitable adhesive.
  • the ribs 21 may be arranged to conform with a groove pattern of the tread of a particular tire, to enhance the grip of the cover 12 on the tire.
  • the ribs 21 are arranged in transverse directions, to fit the grooves on the tread of a GOODYEARTM AQUATREDTM tire and, in particular, to coincide with every fourth transverse groove of the tread of the tire.
  • a suitable material for the ribs 21 has been found to be neoprene rubber cord with a diameter of 1/4 inch (6.35 mm), which has been cut in half longitudinally.
  • the ribs 21 may be of a natural rubber cord.
  • a suitable size has been found to be a rubber cord of 3/8 inch (9.5 mm) diameter which has been cut in half longitudinally.
  • Holes 22 are provided between the ribs 21.
  • the holes 22 serve two purposes: i) the holes provide a means to allow snow particles to escape, should snow accumulate between the sidewall 17 of the tire 14 and the cover 12, and ii) they provide an opportunity for the tread of the tire 14 to work with the traction device 10 to provide better traction.
  • the ribs 21 cross members may be provided with an abrasive material such as a CARBORUNDUMTM abrasive or chopped wire embedded therein.
  • an abrasive material such as a CARBORUNDUMTM abrasive or chopped wire embedded therein.
  • the traction device 10 will replace the use of cumbersome articles, such as snow chains or the need to change to snow tires in wintry conditions. This will allow a motorist to make use of all-season tires with a set of traction devices 10, therefore dispensing with the need to change tires.
  • the traction device 10 is easily fitted to the wheel of a car by simply placing the device 10 over the upper part of the tire 14 not touching the ground surface, so that it hangs down towards the ground stretched over the upper portion of the tire and then driving the car forward slightly so that the rest of the device can be installed onto the tire 14.
  • the reverse procedure is followed by first removing the device 10 from the top part of the tire and then moving the car forward or rearward to release the bottom part of the traction device 10.
  • the traction assistance means can be adapted to suit different road conditions as well as different types of vehicles, such as buses, trucks, automobiles, etc.
  • the traction device according to the invention can be used on not only light vehicles such as automobiles, vans, etc., but also on heavier vehicles, such as trucks and buses.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

Dispositif de traction (10) amovible destiné à un pneu (14) monté sur un véhicule, comprenant un élément (12) allongé et mince mesurant moins de 5 mm d'épaisseur qui se fixe autour du pneu (14) sur la bande de roulement du pneu qui se trouve en contact avec le sol. Ledit élément (12) allongé comporte une surface interne qui se trouve en contact avec la bande de roulement touchant le sol du pneu (14) et une surface externe comprenant un système améliorant la traction. Dans un mode d'exécution, l'élément allongé est élastique ou peut être étiré dans le sens longitudinal. Dans un autre mode d'exécution, l'élément allongé se présente sous forme d'une courroie sans fin et comporte une nervure (18) s'étendant de manière circonférentielle sur sa surface interne de manière à former un ajustement tendu autour du pneu (14). Dans un dernier mode d'exécution, l'élément (12) présente une pluralité d'ouvertures (22) prévues entre ses surfaces interne et externe.
PCT/CA1992/000564 1991-12-23 1992-12-23 Dispositif de traction pour roue Ceased WO1993012944A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US81201391A 1991-12-23 1991-12-23
US812,013 1991-12-23

Publications (1)

Publication Number Publication Date
WO1993012944A1 true WO1993012944A1 (fr) 1993-07-08

Family

ID=25208219

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA1992/000564 Ceased WO1993012944A1 (fr) 1991-12-23 1992-12-23 Dispositif de traction pour roue

Country Status (3)

Country Link
AU (1) AU3155593A (fr)
CA (1) CA2126562A1 (fr)
WO (1) WO1993012944A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000059745A1 (fr) * 1999-04-06 2000-10-12 Autosock As Dispositif de prevention de patinage pour roues de vehicules
EP1745948A1 (fr) 2005-07-22 2007-01-24 Gima S.r.l. Dispositif antidérapant de façon élastique et textile destiné à être utilisé avec pneumatiques
WO2009046020A1 (fr) * 2007-10-01 2009-04-09 Signal Ventures, Inc. Couvercle de traction de roue à plaques de traction

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR333894A (fr) * 1903-07-17 1903-12-05 Albert Pilard Application de rubans métalliques comme protecteurs de garnitures de roues de voitures, automobiles, bicyclettes, etc.
FR489755A (fr) * 1918-04-03 1919-03-11 John Harley Gill Protecteurs amovibles ou interchangeables pour bandages de roues de véhicules automobiles, pour bandages analogues et pour autres usages
US1487165A (en) * 1922-10-07 1924-03-18 Elmer C Jacobson Tire
US1578803A (en) * 1920-06-17 1926-03-30 Falls Rubber Company Tractive cover for tires
FR661940A (fr) * 1927-10-14 1929-07-31 Dunlop Rubber Co Perfectionnements aux bandes de roulement auxiliaires et agencements similaires telsqu'antidérapants, bandages supplémentaires, revêtements ou autres dispositifs de traction
CH159288A (de) * 1931-10-17 1932-12-31 Uhrig Sebastian Schneekettenersatzmantel für Kraftfahrzeuge.
CH179923A (de) * 1934-11-15 1935-09-30 Horber Georg Gleitschutzeinrichtung für Motorfahrzeugräder.
AT335859B (de) * 1969-08-06 1977-04-12 Detwiler Corp Gleitschutzvorrichtung
BE885804A (fr) * 1980-10-21 1981-02-16 Pschaida Edmund Garniture de revetement de marche ou de roulement amovible anti-derapante, en particulier pour chaussures ou pneumatiques d'automobile
GB2152449A (en) * 1984-01-14 1985-08-07 Terence Christopher Thompson Snow treads

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR333894A (fr) * 1903-07-17 1903-12-05 Albert Pilard Application de rubans métalliques comme protecteurs de garnitures de roues de voitures, automobiles, bicyclettes, etc.
FR489755A (fr) * 1918-04-03 1919-03-11 John Harley Gill Protecteurs amovibles ou interchangeables pour bandages de roues de véhicules automobiles, pour bandages analogues et pour autres usages
US1578803A (en) * 1920-06-17 1926-03-30 Falls Rubber Company Tractive cover for tires
US1487165A (en) * 1922-10-07 1924-03-18 Elmer C Jacobson Tire
FR661940A (fr) * 1927-10-14 1929-07-31 Dunlop Rubber Co Perfectionnements aux bandes de roulement auxiliaires et agencements similaires telsqu'antidérapants, bandages supplémentaires, revêtements ou autres dispositifs de traction
CH159288A (de) * 1931-10-17 1932-12-31 Uhrig Sebastian Schneekettenersatzmantel für Kraftfahrzeuge.
CH179923A (de) * 1934-11-15 1935-09-30 Horber Georg Gleitschutzeinrichtung für Motorfahrzeugräder.
AT335859B (de) * 1969-08-06 1977-04-12 Detwiler Corp Gleitschutzvorrichtung
BE885804A (fr) * 1980-10-21 1981-02-16 Pschaida Edmund Garniture de revetement de marche ou de roulement amovible anti-derapante, en particulier pour chaussures ou pneumatiques d'automobile
GB2152449A (en) * 1984-01-14 1985-08-07 Terence Christopher Thompson Snow treads

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000059745A1 (fr) * 1999-04-06 2000-10-12 Autosock As Dispositif de prevention de patinage pour roues de vehicules
US7013548B1 (en) 1999-04-06 2006-03-21 Autosock As Method for increasing friction between wheel and road using gliding preventer
US7789118B2 (en) 1999-04-06 2010-09-07 Autosock As Gliding preventer for vehicle wheels
EP1745948A1 (fr) 2005-07-22 2007-01-24 Gima S.r.l. Dispositif antidérapant de façon élastique et textile destiné à être utilisé avec pneumatiques
WO2009046020A1 (fr) * 2007-10-01 2009-04-09 Signal Ventures, Inc. Couvercle de traction de roue à plaques de traction

Also Published As

Publication number Publication date
AU3155593A (en) 1993-07-28
CA2126562A1 (fr) 1993-07-08

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