Motorcycle tire

A motorcycle and tire technology, applied to motorcycle tires, motorcycles, tire parts, etc., can solve the problem of changes in the weight of the operating steering wheel (the transition characteristics become worse, etc.), and achieve the effect of improving the drainage performance.

Inactive Publication Date: 2012-12-19
SUMITOMO RUBBER IND LTD
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, due to the rigidity of the tread portion of the tire as described above, there is a difference between the belt ply overlapping area where the wide ply and the narrow ply overlap, and the belt ply single layer area where only the wide ply is placed on the outside in the tire axial direction. , so there is a problem that the change in the weight of the steering wheel (transition characteristics) when the tire is tilted when turning is deteriorated

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
  • Motorcycle tire
  • Motorcycle tire
  • Motorcycle tire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0064] Manufacturing has figure 2 The basic structure of motorcycle tires having main inclined grooves and auxiliary inclined grooves according to the specifications in Table 1, and their performances were tested. Furthermore, in order to compare Figure 4 The same test was carried out on the tire shown without a kink (Comparative Example 1). Among them, the common specifications are as follows.

[0065] Tire size:

[0066] Front wheel: 120 / 70ZR17

[0067] Rear wheel: 160 / 60ZR17

[0068] Rim size:

[0069] Front wheel: MT3.50×17

[0070] Rear wheel: MT4.50×17

[0071] Tread half unfolded width 0.5TWe: 83mm

[0072] Longitudinal main groove:

[0073] Groove width W1: 4.7mm, groove depth D1: 4.1mm

[0074] Main inclined groove:

[0075] Groove width W2: 5.4mm, groove depth D2: 4.1mm

[0076] Auxiliary inclined groove:

[0077] Groove width W3: 5.3mm, groove depth D3: 3.5mm

[0078] The test method is as follows.

[0079]

[0080] The rims of each test tire were...

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 provides a motorcycle tire which can improve transition properties of straight moving to turning. The motorcycle tire is provided with a belted layer (7) which comprises a wide cross plie (7A) and a narrow cross plie (7B).A tread portion (2) is provided with main oblique grooves (12) at interval along circumferential tire. Eachmain oblique groove has an axially inner end at a certain axial distance from the tire equator, and extends axially outwardly beyond the side edge of the narrow width ply of the breaker, and terminates within the tread portion. The main oblique grooves comprise an axially inner oblique segment (12A) and an axially outer oblique segment (12B). The axially inner oblique segment extends axially outwardly from the above-mentioned axially inner end, while inclining to one tire circumferential direction at a smaller angle with respect to the tire circumferential direction. The axially outer oblique segment extends from the axially inner oblique segment, while inclining to the above-mentioned one tire circumferential direction at a larger angle with respect to the tire circumferential direction so as to form a bent point (12b); the developed axial distance from the bent point to the side edge of the narrow width ply is not more than 10 % of the developed tread width.

Description

technical field [0001] The present invention relates to a motorcycle tire capable of improving the transition characteristics from straight running to turning. Background technique [0002] In recent years, in tires for motorcycles, there has been a strong demand for improvement in high-speed stability performance along with the construction of highway networks and higher output of motorcycles. For this reason, generally inside the tread portion, for example, a belt layer for tightening the carcass of the radial structure to increase the rigidity of the tread is provided. [0003] The belt layer is constituted by, for example, two belt plies in which belt cords are arranged obliquely with respect to the tire equator, and are overlapped in the tire radial direction in a direction in which the belt cords intersect. In addition, in order to prevent the outer edges of the belt ply from being unified to cause a large difference in rigidity, the belt ply is configured to include ...

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): B60C9/10B60C11/03
CPCB60C2011/0344B60C2200/10B60C2011/0374B60C11/0302B60C9/20B60C2011/0372B60C9/18B60C9/22
Inventor 原田祐介
Owner SUMITOMO RUBBER IND LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap