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Motor Vehicle Tires

A technology for motor vehicles and tires, applied in the direction of motor vehicles, motorcycle tires, vehicle parts, etc., can solve the problems of weakening the tread band structure and easy wear of the tread band, and achieve the effect of high versatility and high mileage

Active Publication Date: 2011-11-30
PIRELLI TYRE SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these grooves weaken the structure of the tread band, making the tread band more prone to wear

Method used

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  • Motor Vehicle Tires
  • Motor Vehicle Tires
  • Motor Vehicle Tires

Examples

Experimental program
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Embodiment Construction

[0055] exist figure 1 , a tire for a motor vehicle wheel according to the invention is indicated generally by 1 . In particular, this tire is intended for use on the rear wheels of motor vehicles of the "sport touring" type.

[0056] In the tire 1 , an equatorial plane X-X and an axis of rotation Z are defined. The circumferential direction is also defined (in figure 2 Indicated by an arrow R oriented in the direction of rotation of the tyre) and an axial direction perpendicular to the equatorial plane X-X.

[0057] The tire 1 comprises a carcass structure 2 having a central crown portion 16 comprising at least one carcass ply 3 , as will be explained in more detail below.

[0058] The carcass structure 2 is preferably covered on its inner walls with a so-called "liner" consisting essentially of a layer of air-impermeable elastomeric material suitable to ensure The tightness of the rear tire itself.

[0059] The carcass ply 3 is engaged at axially opposite side edges 3a ...

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PUM

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Abstract

A tyre for motor vehicles, in particular for rear wheels of motor vehicles, has a tread band including an annular central portion, two first annular side portions and two second annular side portions, each arranged between the annular central portion and a respective first annular side portion and being narrower than the first annular side portion. The tread band has at least one module replicated along a circumferential direction of the tyre and includes grooves inclined with respect to the equatorial plane, at least two first grooves, each extending from a second annular side portion to a first annular side portion; at least two second grooves spaced from the first grooves in the circumferential direction, each extending only on a respective second annular side portion and at least two third grooves arranged along the circumferential direction on the opposite side to the first grooves with respect to the second grooves, each of said third grooves extending from a second annular side portion to a first annular side portion.

Description

technical field [0001] The present invention relates to a tire for a motor vehicle, ie, a tire having a relatively high transverse curvature so as to provide a sufficient contact patch with the road surface when the motor vehicle is leaning into a turn. Background technique [0002] Preferably, the tire of the invention is intended for use in the rear wheels of a motor vehicle of the "sport touring" type, ie a sport motor vehicle intended to be used in urban and And / or outside urban areas and / or off-road, on motorways and streets, on dry or wet roads, delivering high performance in terms of power, comfort and mileage. [0003] Motor vehicles of the "sport touring" type typically have relatively large piston displacements (equal to or greater than 800 cm 3 ) and / or higher power (equal to or greater than 110HP). However, on the market there are already piston displacements equal to 1400cm 3 Motor vehicles with a power equal to 155HP. [0004] It is well known that the tire...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/03B60C11/04
CPCB60C11/0302B60C2200/10B60C2011/0383B60C2011/0374
Inventor P·米萨尼M·马里亚尼A·斯基亚沃林
Owner PIRELLI TYRE SPA
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