Unlock instant, AI-driven research and patent intelligence for your innovation.

Pneumatic tire and method for manufacturing green tire

A technology of pneumatic tires and tire width direction, which is applied in the field of raw tire manufacturing, which can solve the problems of increased resistance value and reduced anti-static function of tires, and achieve the effect of improving rolling resistance performance and maintaining wet handling stability

Pending Publication Date: 2022-03-22
THE YOKOHAMA RUBBER CO LTD
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, silica is a substance with excellent insulating properties, so the resistance value of silica-containing rubber such as top tread rubber increases, and the antistatic function of the tire may decrease.

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 and method for manufacturing green tire
  • Pneumatic tire and method for manufacturing green tire
  • Pneumatic tire and method for manufacturing green tire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0090] Set the tire size to 195 / 65R15 91H, make Figure 1~4 Pneumatic tires of Invention Examples 1 to 7 and pneumatic tires of Conventional Examples having at least any one of the shapes shown. In addition, various conditions of the details of these pneumatic tires are shown in Table 1 and Table 2 below. In addition, in Table 1 and Table 2, LE (mm) represents the dimension along the tire contour from the bulging vertex position to the center position of the conductive rubber in the tire width direction, and Lr (mm) represents the edge of the bulging land portion. According to the overall size of the tire profile, GD (mm) indicates the depth of the circumferential main groove closest to the bulging apex position, TrGa (mm) indicates the tread thickness at the bulging apex position, Ho (mm) indicates the tread thickness at the bulging apex position The amount of bulging from the reference arc, La (mm), represents the size of the bulging land portion along the contour line on 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

The purpose of the present invention is to provide a pneumatic tire in which the conductivity is further improved while maintaining wet steering stability performance and rolling resistance performance. A conductive rubber (20a) is formed in a region (RS) other than a 5% width region (RC) of the bulging land portion (20) centered at a bulging apex position (PA) that is the most bulging outward in the radial direction of the tire in a meridian cross-section view of the tire in an unloaded state in which the tire is assembled to a normal rim and has a normal internal pressure applied thereto.

Description

technical field [0001] The present invention relates to a pneumatic tire which maintains wet handling stability performance and rolling resistance performance and improves electrical conductivity. Moreover, this invention relates to the manufacturing method of the green tire used when manufacturing such a pneumatic tire. Background technique [0002] The rolling resistance of the tire is opposite to the grip, and the grip is particularly weak on wet roads with low rolling resistance. Therefore, a balance between excellent wet handling stability and a low rolling resistance coefficient (RRC) has conventionally been demanded. [0003] As a method of improving wet handling stability, there is known a technique of making the contact shape uniform and improving drainage performance by expanding ribs. On the other hand, as a method of reducing RRC, there is known a rubber compound (English: rubber) that constitutes the top tread rubber (English: cap tread rubber), the bottom tre...

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): B60C19/08B29D30/52
CPCB60C19/082B29D30/52B29D2030/526B60C11/1376Y02T10/86
Inventor 高桥菜摘
Owner THE YOKOHAMA RUBBER CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com