Pneumatic tire

一种充气轮胎、轮胎的技术，应用在充气轮胎、轮胎零部件、车辆部件等方向，能够解决带状吸音件断裂、耐久性恶化等问题，达到抑制倒塌、改善耐久性、容易断裂的效果

Active Publication Date: 2018-06-08
THE YOKOHAMA RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this case, there is a problem that high-speed durability deteriorates due to heat accumulation in the tread portion due to the tape-shaped sound absorbing material being directly attached to the inner surface of the tire.
In addition, when the tape-shaped sound-absorbing material is directly pasted on the inner surface of the tire, there is a problem that the tape-shaped sound-absorbing material cannot follow the deflection of the tire when it touches the ground, causing it to break.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0041] The tires of Examples 1 to 20 were manufactured. The pneumatic tires had a tire size of 275 / 35ZR20 and were provided with: a tread portion extending in the tire circumferential direction and formed in a ring shape; a pair of sidewall portions disposed on both sides of the tread portion and a pair of bead portions arranged on the inner side in the tire radial direction of these sidewall portions, the pneumatic tire is bonded with a belt-shaped sound-absorbing member on the inner surface of the tread portion along the tire circumferential direction, wherein the belt-shaped sound-absorbing member has A plurality of slots extending in two directions intersecting each other.

[0042] In Examples 1 to 20, the presence or absence of notches, the angle θ1 of the first notch with respect to the tire width direction, and the angle of the second notch with respect to the tire width direction are determined as shown in Tables 1-1 and 1-2. θ2, the groove interval (interval t / width W...

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Abstract

Provided is a pneumatic tire that, by forming slits in the band-shaped sound-absorbing material, which has been bonded to the inner surface of a tire, makes it possible to relieve stress generated ina band-shaped sound-absorbing material during rolling to improve the durability of the band-shaped sound-absorbing material and promote heat dissipation from the band-shaped sound-absorbing material to improve high-speed durability. This pneumatic tire, which is provided with a tread section 1 that extends in the tire circumferential direction to form a ring shape, a pair of side wall sections 2 disposed on both sides of the tread section 1, and a pair of bead sections disposed on the inner side of said side wall sections 2 in the tire radial direction, a band-shaped sound-absorbing material 6being bonded to the inner surface of the tread section 1 along the tire circumferential direction, has a plurality of slits 7 which extend in two directions crossing each other in the band-shaped sound-absorbing material 6, and among said slits 7, the slits 7 extending in one direction extend parallel to either the tire width direction or the tire circumferential direction.

Description

technical field [0001] The present invention relates to a pneumatic tire. More specifically, it relates to a method that can ease the stress generated on the belt-shaped sound-absorbing member during rotation by adding grooves to the belt-shaped sound-absorbing member bonded to the inner surface of the tire, and improve the belt-shaped sound-absorbing member. A pneumatic tire that improves the durability of the sound absorbing material, and promotes heat dissipation from the belt-shaped sound absorbing material, and improves high-speed durability. Background technique [0002] One of the causes of tire noise is cavity resonance sound generated by vibration of air filling the tire cavity. The tread portion of the tire in contact with the road surface vibrates due to unevenness of the road surface when the vehicle is running, and the vibration vibrates the air in the tire cavity to generate the cavity resonance sound. There is a frequency domain constituting noise in this cav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C5/00
CPCB60C19/002B60C5/00
Inventor 成濑雅公新泽达朗干场崇史
Owner THE YOKOHAMA RUBBER CO LTD
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