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

Tire

A tire, tire circumferential technology, applied in tire parts, tire tread/tread pattern, transportation and packaging, etc., to improve mud performance, reduce pumping noise, and excellent mud performance.

Active Publication Date: 2019-09-03
SUMITOMO RUBBER IND LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] On the other hand, although the above-mentioned tires are suitable for use as tires for four-wheel drive vehicles running on poor road surfaces, there is room for further improvement in terms of muddy performance

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
  • Tire
  • Tire
  • Tire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

[0030] figure 1 It is a developed view of the tread portion 2 of the tire 1 of the present embodiment. The tire 1 of the present embodiment is used, for example, as a pneumatic tire for a passenger car, and is preferably used for an SUV that is predicated to travel on poor road surfaces. However, the tire 1 of the present invention is not limited to this embodiment.

[0031] Such as figure 1 As shown, the tread portion 2 is provided with a shoulder main groove 3 continuously extending in the tire circumferential direction on the tread edge Te side and a crown main groove 4 continuously extending in the tire circumferential direction on the tire equator C side.

[0032] The tread end Te means, in the case of a pneumatic tire, the tire axis when a normal load is applied to a normal tire 1 assembled on a normal rim and filled with a normal internal pressure in an unl...

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

The invention provides a tire capable of maintaining excellent noise performance and improving muddy performance. The tire has a tread portion (2). The tread portion (2) includes a shoulder main groove (3) on a tread edge (Te) side, a crown main groove (4) on a tire equator (C) side, and a middle land portion (5) defined between the shoulder main groove and the crown main groove. The middle land portion (5) is provided with first middle lateral grooves (10). Each first middle lateral groove (10) is formed by communicating an inner side groove (11) extending from the crown main groove (4) to the outer side in the tire axial direction and an outer side groove (12) extending from the shoulder main groove (3) to the inner side in the tire axial direction in a staggered mode in the circumferential direction of the tire. The groove width of the outer side groove (12) is smoothly and gradually increased from a communication part (13) communicated with the inner side groove (11) to the tire shoulder main groove (3).

Description

technical field [0001] The invention relates to tires having intermediate lateral grooves. Background technique [0002] Patent Document 1 below proposes a pneumatic tire having a lateral main groove including two lateral main groove portions shifted in the tire circumferential direction. Such lateral main grooves can exert drainage performance and suppress pumping noise. [0003] On the other hand, although the above-mentioned tires are suitable for use as tires for four-wheel drive vehicles running on poor road surfaces, there is room for further improvement in terms of muddy performance. [0004] Patent Document 1: Japanese Patent Laid-Open No. 2003-326919 Contents of the invention [0005] The present invention has been made in view of the above problems, and a main object of the present invention is to provide a tire capable of improving mud performance while maintaining excellent noise performance. [0006] The present invention provides a tire, which has a tread ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/12B60C11/03
CPCB60C11/1281B60C11/1259B60C11/03B60C2011/1286B60C2011/1268
Inventor 目黑佑弥
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