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Pneumatic tire for electric two-wheeled vehicle

A technology of pneumatic tires and electric two-wheels, which is applied to bicycle tires, motor vehicles, tire parts, etc., to improve the anti-skid performance of wet land and ensure the effect of continuity

Pending Publication Date: 2021-12-10
CHENG SHIN RUBBER XIAMEN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the above-mentioned prior art, the problem to be solved by the present invention is to provide an electric motor that does not affect the dry wear resistance, rolling resistance performance and drainage performance of the tire, and can effectively prevent stone trapping and improve the wet tire skid problem. Pneumatic tires for two-wheel vehicles

Method used

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  • Pneumatic tire for electric two-wheeled vehicle
  • Pneumatic tire for electric two-wheeled vehicle
  • Pneumatic tire for electric two-wheeled vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] figure 2 It is a schematic diagram of the tread pattern structure of Embodiment 1 of the present invention. A pneumatic tire for an electric two-wheeled vehicle comprises a tire body, and the tire body includes a tread 1 . Tread patterns are provided on the tread 1 , and the tread patterns on both sides of the tread 1 are symmetrical with respect to the center plane C.L. of the tire and are dislocated along the circumferential direction of the tire. The tread pattern includes a bent main groove 10 , an inclined main groove 20 and a central anti-skid suction cup 30 , and the groove width of the inclined main groove 20 is greater than that of the bent main groove 10 .

[0033] The inclined main grooves 20 are arranged at intervals along the tire circumferential direction, and the bent main grooves 10 are arranged between the circumferentially adjacent inclined main grooves 20 . The bent main groove 10 is composed of two sections of grooves connected to each other, and ...

Embodiment 2

[0037] Such as Figure 6-Figure 7As shown, the difference between this embodiment and Embodiment 1 is that, in this embodiment, in order to further enhance the function of the inclined main groove 20 to prevent stone trapping, the inner groove wall 21a of the upper groove 21 and the inner groove wall 21a of the lower groove 22 The outer groove walls 22a are all set in a stepped shape, which can be set in 2-4 steps. In this embodiment, both the inner side wall 21 a of the upper groove 21 and the outer side wall 22 a of the lower groove 22 are provided with three-step groove walls. The step design of the groove wall can make the cross-sectional width of the groove gradually narrow from the surface to the bottom. Even if the stone enters the surface of the groove, the step can prevent the stone from being further clamped into the bottom of the groove and help the stone to be discharged when the tire is running. The upper groove 21 and the lower groove 22 are diagonally dislocate...

Embodiment 3

[0040] Such as Figure 9-Figure 10 As shown, the difference between this embodiment and Embodiment 1 is that, in this embodiment, in order to further take into account the service life of the central anti-skid suction cup 30 and the rigidity of the tread 1, the depth h1 of the arc disc 30a is set to be inclined mainly 20%-40% of the depth H of the groove 20, and the depth h2 of the rotary ladder 30b is set to be 20%-40% of the depth H of the inclined main groove 20. In this embodiment, the depth h1 of the arc disc 30 a is set to be 31% of the depth H of the inclined main groove 20 , and the depth h2 of the rotary ladder 30 b is set to be 28% of the depth H of the inclined main groove 20 . If the overall depth of the central anti-slip suction cup 30 is too large, the rigidity of the central area of ​​the tread 1 will be reduced, resulting in deterioration of the wear resistance of the tire on dry ground; if the overall depth of the central anti-slip suction cup 30 is too small,...

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Abstract

The invention provides a pneumatic tire for an electric two-wheeled vehicle. The tread patterns arranged on the two sides of the tread are symmetrical about the center plane of the tire and are staggered in the circumferential direction of the tire, and each tread pattern comprises a bent main groove, an inclined main groove and a center anti-skid suction cup; the inclined main grooves are arranged at intervals in the circumferential direction of the tire; bent main grooves are formed between the adjacent inclined main grooves in the circumferential direction. The bent main groove is formed by mutually connecting at least two sections of grooves, the inclined main groove is a disconnected two-section type groove and is formed by diagonally arranging an upper groove and a lower groove in a staggered manner, and the outer endpoint of the rear grounding end of the upper groove is overlapped with the inner endpoint of the front grounding end of the lower groove; the center anti-skid suction cups are close to the center plane of the tire and arranged in the circumferential direction of the tire at intervals, and each center anti-skid suction cup comprises a concave arc disc and at least two rotating ladders arranged at the bottom of the arc disc at intervals along the arc outline of the center anti-skid suction cup. The pneumatic tire does not influence wear resistance, rolling resistance performance and drainage performance on a dry land, and can effectively prevent stone from being clamped and improve the problem of slipping on a wet land.

Description

technical field [0001] The invention relates to the field of pneumatic tires, in particular to a pneumatic tire for electric two-wheel vehicles. Background technique [0002] In order to obtain better water drainage, abrasion resistance and lower rolling resistance in existing pneumatic tires for electric two-wheel vehicles, the tire tread pattern is generally designed as a groove pattern with a high land ratio. Such as figure 1 Shown is a common pneumatic tire pattern structure for electric two-wheeled vehicles. The main groove 10' and the auxiliary groove 20' set on the tread 1' are designed to be long and wide, so that the overall ground contact surface of the tread 1' is relatively large. Continuous, with less edge effect, a larger area of ​​rubber for abrasion, and a smooth drainage channel. However, the large-span main groove 10' and auxiliary groove 20' also form a long and wide open entrance, which is easy to trap stones when the tire is actually running, and once ...

Claims

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Application Information

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IPC IPC(8): B60C11/03B60C11/12B60C11/16
CPCB60C11/0323B60C11/124B60C11/1643B60C2011/0339B60C2200/12Y02T10/86
Inventor 严永知林文艳徐通良
Owner CHENG SHIN RUBBER XIAMEN IND
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