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

Vehicle pneumatic tires with cap/base tread

A technology for pneumatic vehicles and pneumatic vehicles, applied in the direction of tire tread/tread pattern, special tires, tire parts, etc., which can solve problems such as wear, affecting wet adhesion, dry adhesion, and changing properties of cured mixtures , to achieve the effect of improving thermal conductivity, improving thermal conductivity and good tear resistance

Inactive Publication Date: 2008-10-01
CONTINENTAL AG
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of graphite specifically to rubber compounds for tread rubber has the consequence that the properties of the cured compound change
The inclusion of graphite in rubber compounds for tread rubber has the adverse effect of, for example, affecting wet grip, dry grip, and especially wear

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
  • Vehicle pneumatic tires with cap/base tread
  • Vehicle pneumatic tires with cap/base tread

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The figure shows a section through one of the upper sidewall regions of a tire for commercial vehicles and in the region of the tread rubber adjacent thereto. The conventional tire components illustrated have a standard construction, for example, a frame insert 2 specially equipped with steel cords as reinforcing elements, an airtight inner layer 1, a breaker belt assembly comprising four plies 3, 4, 5 and 6, and side wall 10. Shoulder pads 11 are fitted between the cushioning strap assembly, frame insert 2 and side walls 10 . The tread rubber comprises a tread rubber cap 9 and a tread rubber base 8; the edges of the breaker plies 4, 5 and 6 are covered by a layer of undertread rubber 7 (Fig. 1) or 7' (Fig. 2). The tire components not shown, such as the bead regions, can be constructed in known manner.

[0019] In the case of the illustrated embodiment, this fourth, radially outermost breaker ply 6 has the smallest width of all the plies and is the so-called protectiv...

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 relates to a vehicle tire, especially utility vehicle tire, comprising a tread which has a tread cap (9) and a tread base (8), both produced from a rubber mixture, and a multilayer ply structure (3, 4, 5, 6) with at least one undertread strip (7, 7') covering the ply edges and separating the same from the tread base, said undertread strip being likewise produced from a rubber mixture. The aim of the invention is to reduce temperature and heat build-up in the area of the ply edges. For this purpose, the tread base (8) has a heat conductivity that is by at least 20 % higher than that of the tread cap (9) and a heat conductivity that is by at least 10 % higher than that of the one or more undertread strips (7, 7'), and the tread base (8) contains at least 25 phr of acetylene black.

Description

technical field [0001] The present invention relates to a pneumatic vehicle tire, in particular a tire for commercial vehicles, having a tread rubber with a tread rubber cap and a tread rubber base, which in each case Produced from a rubber compound and having at least one ply breaker belt assembly having at least one layer of undertread rubber produced from the rubber compound covering breaker edges and separating them from the tread rubber base. Background technique [0002] During the use or operation of the tyre, the flexural and centrifugal forces occurring and the associated dynamic deformations due to the loss of hysteresis of the cured rubber compound in the tyre, lead to the formation of thermal energy which can only be dissipated poorly. Accompanying the increase in temperature, a unique heat formation occurs especially near the edge of the buffer layer. This results in compromising the durability of the tire as well as the feasibility of retreading. Due to the i...

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): B60C1/00
CPCB60C1/0016B60C11/005
Inventor 延斯·克勒夫曼马蒂亚斯·豪费克里斯蒂安-托拉夫·韦伯
Owner CONTINENTAL AG
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