WO2015005811A1 - Pneumatique - Google Patents

Pneumatique Download PDF

Info

Publication number
WO2015005811A1
WO2015005811A1 PCT/PL2014/000073 PL2014000073W WO2015005811A1 WO 2015005811 A1 WO2015005811 A1 WO 2015005811A1 PL 2014000073 W PL2014000073 W PL 2014000073W WO 2015005811 A1 WO2015005811 A1 WO 2015005811A1
Authority
WO
WIPO (PCT)
Prior art keywords
tyre
circumferential
tread
external
tread belt
Prior art date
Application number
PCT/PL2014/000073
Other languages
English (en)
Inventor
Ryszard Gawerski
Original Assignee
Ryszard Gawerski
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 Ryszard Gawerski filed Critical Ryszard Gawerski
Publication of WO2015005811A1 publication Critical patent/WO2015005811A1/fr

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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/01—Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered
    • 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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/04—Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag
    • 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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/01—Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered
    • B60C2011/013—Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered provided with a recessed portion

Definitions

  • the invention relates to a pneumatic tyre for wheel vehicles.
  • the pressure of air or other gas maintains their elasticity and is the absorbing agent, dampening the shocks resulting from bumps on the road.
  • a tyre with a rim constitutes the whole wheel of a vehicle.
  • the tyre is the external part of the wheel, it is put on the rim and filled with gas. It is the vehicle's element which transfers the vehicle's weight to the ground. Many patterns of pneumatic tyres are known.
  • the tread which contacts the ground and ensures the traction, may be of various shape.
  • the tyre has a carcass in the form of several cord layers laid at different angles, as well as a breaker in the form of cord layers laid circumferentially.
  • the bead of the tyre is set on a rim fixed directly to the wheel disk of the vehicle.
  • the whole tyre structure is set in a layer of rubber mixture of various composition, depending on the tyre destination.
  • the tread is divided by means of the equatorial plane into an external ring part and internal ring part situated between the radial cord and the tread.
  • This belt of the tread is covered from its external to internal side edge with first and second reinforcing layer.
  • the first reinforcing layer is wider than the second one, so that it increases the rigidity of the external ring part to a degree greater than of the internal ring part.
  • a vehicle wheel with a pneumatic tyre is presented.
  • the wheel has a pneumatic wheel which is only externally curved or convex, and which is based on a carcass and centrally-located tread with breaker.
  • the tread with breaker has sharp edges and the width of no more than the width of the tyre corpus.
  • the tyre corpus is inclined under the nominal load. Under increasing load, the tyre corpus changes its shape from convex into concave configuration. The load shifts cause the tyre corpus edges to change their position by an angle of 10° to 30°, obtaining contact with the ground under increased load.
  • the tread has its traction relief formed in the central part, with rain grooves.
  • An off-road relief was designed on both sides of the central on-road part of the tread and applied on both shoulders of the tyre.
  • the off-road relief has special lugs and a
  • the tyre has also a radially- positioned internal belt starting at the bottom of the rain grooves, which is out of contact with the road surface during the on-road journey.
  • the on-read element is submerged in the soft off-road terrain and then both the on-road and off-road parts of the tyre are in contact with the ground, which increases the efficiency of covering swampy areas, sand or other similar surfaces.
  • the tyre consists of an internal, circumferential pneumatic part adjusted to assembled in the vehicle, containing a circumferential rim.
  • the first ring is concentric to the internal wheel disk and has a circumferential flat belt, and an internal radial surface.
  • the internal ring pneumatic tyre is safely located between the internal disk and this ring.
  • the second ring has an external ring surface and an internal ring surface adjusted to be joined with the first ring.
  • the flat belt of the tread is fixed to the external surface of the second ring.
  • Such a design of tyre set is therefore a typical pneumatic tyre with an assembled circumferential ring with a tread with a flat, cylindrical surface.
  • the contract of the tread with the road surface is therefore significantly greater than in the case of a traditional tyre.
  • the tyre set consists of two tyres and two separate, replaceable, circumferential tread belts to be assembled around the two tyres.
  • the pair of replaceable circumferential tread belts covers the gap between the tyres, the belts are transversely adjacent to each other and levelled coaxially during the assembly of the tyre on the double rim. According to the invention, it is possible to situate another tread belt between them, which constitutes a bridge over the gap between the tyres.
  • the tread which contacts the ground and ensures the traction, may be of various shape.
  • the tyre has a carcass in the form of several cord layers laid at different angles, as well as a breaker in the form of cord layers laid circumferentially.
  • the bead of the tyre is set on a rim fixed directly to the wheel disk of the vehicle.
  • the whole tyre structure is set in a layer of rubber mixture of various composition, depending on the tyre destination.
  • the pneumatic tyre consists of a carcass around the interior of the tyre, breaker around the tread zone, a circumferential tread belt which is the contact area of the tyre with the ground and a bead which serves for fixing the tyre on the vehicle's rim.
  • the whole tyre structure is set in a layer of rubber mixture.
  • a pneumatic tyre is characterized by the fact that at least on one side of the tyre the circumferential working area of the tread belt is extended in the direction of the tyre rotation axis. This extension creates a flange around the tyre, and the outer surface of this flange widens the tread belt.
  • the circumferential working area of the tread belt may be extended on both sides of the tyre in the direction of the tyre rotation axis (A). This way a circumferential flange is created on both sides of the tyre, with its outer surface widening the tread belt.
  • the diameter of the external edge of the flange is smaller than the diameter of the external edge of the tread.
  • the contact edge of the internal surface of the circumferential flange with the external surface of the tread belt, circumferential gaps are present.
  • a new structure of pneumatic tyre has been proposed in the invention. This tyre ensures automatic regulation of contact surface area of the tread with the ground during while riding. The optimal contact area is created while riding, depending on the vehicle's velocity i.e. the rotational speed of the wheel.
  • the increase of the wheel rotational velocity causes a gradual extension of the walls of this flange, as a result of which the contact surface between the tyre and the ground becomes larger.
  • the centrifugal force acting on the flange also decreases. It causes a gradual return of the flange to its initial shape, and therefore a reduction of the contact surface between the tyre and the ground. Decreasing the contact surface at reduced vehicle's velocity is beneficial for the reduction of the fuel consumption.
  • the tyre, as described in the invention is not prone to puncture consequences in the area of the flange.
  • fig. 1 is a perspective view while fig. 2 shows the tyre cross-section with a plane incorporating the tyre rotation axis.
  • Pneumatic tyre 1 consists of conventional elements of vehicle tyres as carcass around the interior of the tyre, breaker in the tread zone, circumferential tread belt 2 which is the contact surface of the tyre 1 with the ground, and the bead fixing the tyre 1 to the vehicle's rim.
  • the whole of tyre 1 is set in a layer of rubber mixture, which is the external layer of known pneumatic tyre solutions.
  • the pneumatic tyre 1 may be equipped with the circumferential flange according to the invention only on one side of the tread belt 2.
  • flanges 3 may have other shape, e.g. conical sectors convergent from the external tread edge 9 towards the tyre 1 rotation axis.
  • the tyre 1 has a pressured part 12 and two non-pressured parts 13,1 .
  • the tyre 1 may consist of a pressured part 12 and only one non-pressured part 13 or 14.

Landscapes

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

Abstract

Pneumatique (1) présentant une bande de roulement dotée d'une ceinture qui est plus large axialement (3) que sa zone centrale (2) à l'état gonflé.
PCT/PL2014/000073 2013-07-08 2014-07-07 Pneumatique WO2015005811A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL40459113A PL404591A1 (pl) 2013-07-08 2013-07-08 Opona pneumatyczna
PLP.404591 2013-07-08

Publications (1)

Publication Number Publication Date
WO2015005811A1 true WO2015005811A1 (fr) 2015-01-15

Family

ID=51300803

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/PL2014/000073 WO2015005811A1 (fr) 2013-07-08 2014-07-07 Pneumatique

Country Status (2)

Country Link
PL (1) PL404591A1 (fr)
WO (1) WO2015005811A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1189223A (en) * 1911-03-24 1916-07-04 Lewis Albrecht Vehicle-wheel.
US3450182A (en) * 1965-07-13 1969-06-17 Gen Etablissements Michelin Ra Pneumatic tire casings
US3982579A (en) * 1973-07-27 1976-09-28 Uniroyal S.A. Pneumatic tire
US4034790A (en) 1974-11-21 1977-07-12 Continental Gummi-Werke Aktiengesellschaft Vehicle wheel equipped with pneumatic tire
US4881586A (en) 1987-02-28 1989-11-21 The Ohtsu Tire & Rubber Co., Ltd. All-terrain pneumatic tire
US6478387B1 (en) 2001-07-13 2002-11-12 The Goodyear Tire & Rubber Company Heavy duty dual tire assembly
US7913733B2 (en) 2006-04-19 2011-03-29 Bridgestone Americas Tire Operations, Llc Composite tire assembly
PL208257B1 (pl) 2001-12-11 2011-04-29 Bridgestone Firestone Tech Opona dla pojazdu

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1189223A (en) * 1911-03-24 1916-07-04 Lewis Albrecht Vehicle-wheel.
US3450182A (en) * 1965-07-13 1969-06-17 Gen Etablissements Michelin Ra Pneumatic tire casings
US3982579A (en) * 1973-07-27 1976-09-28 Uniroyal S.A. Pneumatic tire
US4034790A (en) 1974-11-21 1977-07-12 Continental Gummi-Werke Aktiengesellschaft Vehicle wheel equipped with pneumatic tire
US4881586A (en) 1987-02-28 1989-11-21 The Ohtsu Tire & Rubber Co., Ltd. All-terrain pneumatic tire
US6478387B1 (en) 2001-07-13 2002-11-12 The Goodyear Tire & Rubber Company Heavy duty dual tire assembly
PL208257B1 (pl) 2001-12-11 2011-04-29 Bridgestone Firestone Tech Opona dla pojazdu
US7913733B2 (en) 2006-04-19 2011-03-29 Bridgestone Americas Tire Operations, Llc Composite tire assembly

Also Published As

Publication number Publication date
PL404591A1 (pl) 2015-01-19

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