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

pneumatic tire

A technology of pneumatic tires and sipes, which is applied to road vehicle tires, off-road vehicle tires, tire parts, etc., can solve the problem of rigidity reduction and achieve the effect of ensuring grounding

Active Publication Date: 2020-12-18
TOYO TIRE & RUBBER CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, there is also a problem that the rigidity of the land portion of the tread decreases due to the provision of the sipe.

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 Construction

[0015] like figure 1 As shown by way of example, bead portions 2 are provided on both sides in the tire width direction of the pneumatic tire 1 . The bead portion 2 includes: a bead core 2a formed of a steel wire wound in a circular shape; and a rubber bead apex 2b provided radially outside the bead core 2a. A carcass ply 5 is bridged over the bead portions 2 on both sides in the tire width direction. The carcass ply 5 is a sheet-like member in which a plurality of cords arranged in a direction perpendicular to the tire circumferential direction are covered with rubber. The carcass ply 5 forms the skeleton shape of the pneumatic tire 1 between the bead portions 2 on both sides in the tire width direction, and is folded around the bead portion 2 from inside to outside in the tire width direction to wrap the bead portion 2 . A sheet-shaped inner liner 6 made of rubber with low air permeability is pasted inside the carcass ply 5 .

[0016] One or more layers of the belt 7 are ...

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 present invention relates to a pneumatic tire. To provide a pneumatic tire that can ensure ground contact while reducing the rigidity of a land portion as much as possible. The pneumatic tire has: a pattern block (41) formed by main grooves (15) and lateral grooves (20, 25); 45), the pneumatic tire is characterized in that the block longitudinal sipe (45) is a zigzag shape formed by: a plurality of longitudinal sipe parts (42) extending along the tire circumferential direction; and along the tire width The transverse sipe portion (43) extending in the direction and connecting the ends of the two longitudinal sipe portions (42) to each other is closer to the longitudinal sipe portion (42) on the push-out side of the block (41). ) the smaller the width.

Description

[0001] This application is based on Japanese patent application 2017-238858 (application date: December 13, 2017) and claims the priority of Japanese patent application 2017-238858. This application contains the entire content of Japanese patent application 2017-238858. technical field [0002] The present invention relates to a pneumatic tire. Background technique [0003] As described in Patent Document 1 and Patent Document 2, it is known that a land portion of a tread of a pneumatic tire is provided with a sipe extending in the tire circumferential direction. It is considered that the ground contact performance of the land portion of such a tread is improved by the effect of the sipes. [0004] Patent Document 1: Japanese Patent Laid-Open No. 2011-116319 [0005] Patent Document 2: Japanese Patent Laid-Open No. 2000-318413 Contents of the invention [0006] However, there is also a problem that the rigidity of the land portion of the tread decreases due to the provi...

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 Patents(China)
IPC IPC(8): B60C11/12B60C11/03
CPCB60C11/0302B60C11/0309B60C11/032B60C11/1204B60C11/1236B60C11/1281B60C11/1307B60C2011/0346B60C2011/0358B60C2011/0381B60C2011/0383B60C2011/0388B60C2011/1213B60C2011/1245B60C2011/1254B60C2011/133B60C2200/04B60C2200/14B60C11/1263B60C2011/0334B60C2011/1227
Inventor 安永智一
Owner TOYO TIRE & RUBBER CO 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