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

Pneumatic tire

A technology for pneumatic tires and tires, applied in tire parts, tire treads/tread patterns, transportation and packaging, etc., can solve the problems of low rigidity in the land part, poor handling stability on dry roads, and difficulty in balanced improvement. , to achieve the effect of improving ice road performance, high pattern rigidity and improving friction

Active Publication Date: 2015-03-25
SUMITOMO RUBBER IND LTD
View PDF9 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a pneumatic tire has problems in that the rigidity of the land portion is low, and the handling stability on dry roads is deteriorated.
In this way, there is a negative relationship between handling stability performance and icy road performance, and it is difficult to improve these two performances in a balanced manner

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

[0085] Based on the specifications in Table 1 figure 1 The pneumatic tires with the basic pattern in 205 / 85R16 and the size is 205 / 85R16, and the icy road performance, snow road performance and handling stability performance on dry roads of each tested tire were tested. The common specifications and test methods of the tested tires are as follows.

[0086] Tread ground width TW: 162mm

[0087] The groove width of the central main groove W1: 6.0mm

[0088] The groove depth of the central main groove D1: 13.5mm

[0089] The groove width of the main groove of the shoulders W2: 6.0mm

[0090] The depth of the main groove of the shoulder D2: 13.5mm

[0091] The width of the middle transverse groove W3: 3.0mm

[0092] Groove depth D3 of the inner part: 8.5mm

[0093] The depth of the shallow bottom groove D4: 10.0mm

[0094] Deep groove depth D5: 13.5mm

[0095] Deep groove depth D6: 6.0mm

[0096] The groove depth of the axial part D7: 12.0mm

[0097] The depth of each sipe / the depth of the centra...

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 pneumatic tire that can improve ice road performance and control stability evenly. A middle pattern block (10) is arranged at the tire peripheral direction. The two sides of the middle pattern block (10) at the peripheral direction have an axial edge (10a) that extends in an angle below 15 degree relative to the tire axial direction. The middle pattern block (10) has a plurality of middle blade groove pattern (20). The middle blade groove pattern (20) comprises an outer blade groove pattern (21) set at the two sides of the tire in peripheral direction; and an inner blade groove pattern (22) set between the outer blade groove pattern (21) at the two sides. The length at the tire peripheral direction between the axial edge (10a) and the outer blade groove pattern (21) is larger than the distance of the adjacent middle blade groove pattern (20) at the tire peripheral direction.

Description

Technical field [0001] The present invention relates to a pneumatic tire that improves the performance on ice and the steering stability in a balanced manner. Background technique [0002] Pneumatic tires used in winter not only drive on icy roads, but also on dry roads. Therefore, for such pneumatic tires for winter, it is required not only to improve the performance on icy roads, but also to improve the steering stability on dry roads. [0003] For example, in order to increase the frictional force against the icy road and improve the icy road performance of the tire, a pneumatic tire in which a plurality of sipes are arranged on the land portion of the tread portion has been proposed. However, in this type of pneumatic tire, there is a problem that the rigidity of the land portion is small, and the steering stability performance on dry roads is deteriorated. In this way, there is an inverse relationship between steering stability performance and ice road performance, and it is...

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): B60C11/04B60C11/13
CPCB60C2011/1254
Inventor 二宫浩彰
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