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

Pneumatic tire

A technology of pneumatic tires and tires, which is applied to tire parts, tire treads/tread patterns, transportation and packaging, etc. It can solve problems such as insufficient rigidity, insufficient road followability, insufficient braking performance, and insufficient drainage, and achieves Improved drainage, improved road followability and braking performance, and improved rigidity

Active Publication Date: 2017-08-04
TOYO TIRE & RUBBER CO LTD
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the rigidity is insufficient, and the road surface followability and braking performance are insufficient
In addition, since the inclined surface extends only along one side of the side portion, drainage is insufficient

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 1

[0060] Example 1 has figure 1 Pneumatic tires with the tread pattern shown.

[0061] (Table 1)

[0062] Comparative example 1 Comparative example 2 Comparative example 3 Example 1 concave part none Have Have Have shape of the base — curved surface single inclined plane two slopes water slippery 90 100 95 105

[0063] As can be seen from Table 1, by making the bottom surface of the concave portion consist of two inclined surfaces 7, good water drainage can be ensured, and water slipperiness can be sufficiently improved.

[0064] In addition, this invention is not limited to the structure described in the said embodiment, Various changes are possible.

[0065] In the above-described embodiment, the tip of the concave portion 6 is sharpened at an acute angle, but the tip portion may be formed in various forms such as an arc shape. In short, the shape of the concave portion 6 may be such that the width dimension gradually ...

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

A pneumatic tire includes a rib formed in a center region of a tread portion and extending continuously in a tire circumferential direction. The rib has a plurality of respective recessed portions disposed along the tire circumferential direction at a center portion thereof. A bottom surface of each of the plurality of recessed portions is formed of a pair of inclined surfaces respectively deepened toward both sides. A groove portion extending in a tire width direction toward a kicking-out side in the tire circumferential direction is configured to communicate with one side of the recessed portion.

Description

technical field [0001] The present invention relates to a pneumatic tire. Background technique [0002] Conventionally, as a pneumatic tire, a structure in which the width of inclined grooves inclined with respect to the tread circumferential direction is gradually increased toward the side is known (for example, refer to Patent Document 1). [0003] However, in the aforementioned conventional pneumatic tire, a circumferential groove exists in the center region of the tread portion, or the width of the inclined wall portion increases toward the center side. Therefore, rigidity is insufficient, and road surface following performance and braking performance are insufficient. In addition, since the inclined surface extends only along one side of the side portion, drainage is insufficient. [0004] prior art literature [0005] patent documents [0006] Patent Document 1: Japanese Invention Publication No. 2007-112218 Contents of the invention [0007] (1) Technical probl...

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): B60C11/03B60C11/04
Inventor 高桥敏彦
Owner TOYO TIRE & RUBBER CO LTD