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

Manufacturing method of pneumatic tire

一种充气轮胎、制造方法的技术，应用在胎、家里用具、其他家里用具等方向，能够解决轮胎外观变差、成型不良等问题

Active Publication Date: 2019-11-15
SUMITOMO RUBBER IND LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Air between such rubber bands has the potential to cause poor molding during vulcanization, deteriorating the appearance of the tire
[0005] As a related technique, the following patent document 1 is proposed, but this technique is not a method of manufacturing a pneumatic tire using a rigid core

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
  • Manufacturing method of pneumatic tire
  • Manufacturing method of pneumatic tire
  • Manufacturing method of pneumatic tire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0023] figure 1 2 shows a meridian cross-sectional view of the right half of a pneumatic tire (hereinafter, sometimes simply referred to as "tire") 1 manufactured by the method for manufacturing a pneumatic tire of the present invention. The pneumatic tire 1 of the present embodiment can be preferably used as a passenger car, for example.

[0024] The tire 1 includes: a carcass 6 having a carcass ply 6 a extending from a tread portion 2 via a sidewall portion 3 to a bead core 5 of a bead portion 4 ; The inner liner layer 8 is arranged on the inner side of the carcass 6 to form the inner cavity surface S of the tire; and the isolation (insulation) layer 9 is arranged on the carcass 6 and the inner liner layer. between 8. The barrier layer 9 of the present embodiment is arranged only on the tire side surfaces K on both sides, and is not provided on the tread portion ...

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

In order to provide a manufacturing method capable of reducing molding defects in the production of a pneumatic tire, the method for manufacturing a pneumatic tire 1 uses a rigid core 12 and includes the following steps: by helically winding a first rubber strip 15 made of a first composition on the outer side of the rigid core 12 in a circumferential direction of the core, a step for forming a first rubber layer 20 where first overlapped portions 27 are formed in a helical pattern by overlapping side edges of the first rubber strip 15; and by helically winding a second rubber strip 16 made of a second composition on the external surface of the first rubber layer 20 in the same direction as that of the first rubber strip 15, a step for forming a second rubber layer 21 where second overlapped portions 28 are formed in a helical pattern by overlapping side edges of the second rubber strip 16. In the step for forming the second rubber layer 21, the second rubber strip 16 is wound so as to form a second overlapped portion 28 between adjacent first overlapped portions 27.

Description

technical field [0001] The present invention relates to a method for manufacturing a pneumatic tire using a rigid core, and more specifically, to a method for reducing molding defects. Background technique [0002] Conventionally, a method of manufacturing a pneumatic tire using a rigid core has been proposed. The rigid core has, for example, an outer surface for molding the inner cavity of the tire. On the outer side of the rigid core, liner rubber, isolation rubber (rubber used to improve the adhesion between the inner liner and the carcass ply, the same applies hereinafter), and the carcass ply, etc. tire structural components to form green tires. The green tire is vulcanized together with a rigid core to form a pneumatic tire. [0003] In the method of manufacturing a pneumatic tire using a rigid core, a narrow strip-shaped unvulcanized rubber belt is used to manufacture an inner liner rubber and an insulating rubber. To form the inner liner on the outer surface of t...

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): B29D30/16
CPCB29D30/1628
Inventor 小原圭杉山直树
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