Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Pneumatic tire

A technology of pneumatic tires and tires, which is applied to tire parts, tire tread/tread pattern, transportation and packaging, etc. It can solve problems such as difficulty in balancing, increased resonance vibration, and deteriorated noise performance, and achieves maximum traction performance , Increase the shear force and improve the performance of the mud road

Active Publication Date: 2012-10-17
SUMITOMO RUBBER IND LTD
View PDF10 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the above-mentioned method, since the groove volume of the main groove and the lateral groove is increased, the resonant vibration of the air (air column resonance sound) generated in the groove is increased, so that there is a problem that the noise performance deteriorates when driving on a dry road surface.
In this way, improving mud road performance and ensuring noise performance are antinomy relations, and it is difficult to balance both

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pneumatic tire
  • Pneumatic tire
  • Pneumatic tire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0053] Manufacturing has figure 1 The tread pattern and the pneumatic tires (size: 285 / 60R18) based on the specifications in Table 1 were tested for their various properties. Among them, the common specifications are as follows.

[0054] Ground width TW: 200mm

[0055]

[0056] Groove width W1 / ground width TW: 3.1%

[0057] Groove depth D1: 10.0mm

[0058] The angle θ1 of the transition part relative to the tire axial direction: 45 degrees

[0059] Ratio La / Lb of the tire circumferential lengths of the inner groove portion and the outer groove portion: 1.17

[0060]

[0061] Groove width W2 / ground width TW: 4.1%

[0062] Groove depth D2: 10.0mm

[0063] The angle of the central transition part relative to the tire axis: 40 degrees

[0064]

[0065] Groove depth D3 / D1: 90%

[0066]

[0067] Groove depth 5.0~8.0mm

[0068]

[0069] Groove depth 3.0~5.0mm

[0070] The test method is as follows.

[0071]

[0072] Install the test tires on all the wheels of t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A pneumatic tire in the invention inhibits deterioration of noise performance and improves mud land performance. A pneumatic tire (1) is provided with a tire shoulder longitudinal furrow (3) and a tire shoulder horizontal furrow (8). The tire shoulder longitudinal furrow (3) is formed to be trapezoidal wave-shaped sawteeth. In the tire shoulder horizontal furrow (8),the angle of a straight line connecting an intersection point (P1) of a furrow central line (8G) and the tire shoulder longitudinal furrow (3), and an intersection point (P2) of a furrow central line (8G) and a grounding terminal (Te) relative to the tire axial direction is 5-20 degrees. The width of the tire shoulder horizontal furrow (8) is gradually increased, the ratio Wo / Wi of the furrow width (Wo) at the grounding terminal (Te) to the furrow width (Wi) at the part communicated with the tire shoulder longitudinal furrow (3) is 1.5-3.0. One party side furrow intersection part (20) of a one party side furrow wall (8A) of the tire shoulder horizontal furrow (8) in the tire shoulder horizontal furrow (8) and the tire shoulder longitudinal furrow (3) is closer to the axial inner side of the tire than the other party side furrow intersection part (21) of the other party side furrow wall (8B) of the tire shoulder horizontal furrow (8) in the tire shoulder horizontal furrow (8) and the tire shoulder longitudinal furrow (3).

Description

technical field [0001] The present invention relates to a pneumatic tire that suppresses deterioration of noise performance and improves mud road performance. Background technique [0002] For example, four-season general-purpose tires running on muddy roads use a block pattern. pattern blocks. Conventionally, in order to improve the performance of mud roads, it is known to increase the depth and width of the main trenches and lateral trenches to improve the soil-discharging performance, or to cut the shearing force of the mud compacted in the transverse trenches. [0003] However, in the above-mentioned method, since the groove volume of the main groove and the lateral groove is increased, the resonant vibration of the air (air column resonance sound) generated in the groove is increased, so that there is a problem that the noise performance deteriorates when driving on a dry road surface. . In this way, improving the mud road performance and ensuring the noise performan...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B60C11/03B60C11/12
CPCB60C2011/0346B60C11/01B60C11/03B60C11/04B60C11/11
Inventor 田麦显大
Owner SUMITOMO RUBBER IND LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com