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Tire uniformity tester and tire uniformity measurement method

一种均匀性、试验机的技术，应用在汽车轮胎测试、轮胎安装、轮胎零部件等方向

Inactive Publication Date: 2017-05-10
KOBE STEEL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, it is difficult to measure the LFV or the taper force with the desired accuracy if the uniformity of the reverse rotation of the tire is measured in a state where there is deviation between the tire and the rim.

Method used

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  • Tire uniformity tester and tire uniformity measurement method
  • Tire uniformity tester and tire uniformity measurement method
  • Tire uniformity tester and tire uniformity measurement method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] A tire uniformity testing machine and a tire uniformity measuring method according to an embodiment of the present invention will be described based on the drawings. figure 1 and figure 2 The tire uniformity testing machine 1 of the aforementioned embodiment is shown, and the "up and down direction" of the testing machine 1 described below corresponds to figure 1 The up-down direction of the paper, and the "front-back direction" corresponds to the left-right direction of the paper.

[0016] The aforementioned tire uniformity testing machine 1 (hereinafter also referred to simply as a tire testing machine) is used as a finished product inspection to evaluate the tire uniformity characteristics of the finished tire T, especially the variation of the longitudinal force of the tire T (Radial ForceVariation: RFV), lateral force variation of the tire T (Lateral Force Variation: LFV), and taper force (conicity) (a lateral force always generated in a certain direction regardl...

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PUM

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Abstract

The provided tire uniformity tester has: a spindle capable of rotating while holding a tire; a drum; a pressing mechanism that rotatably supports the drum and makes it possible to press a tire attached to the spindle into the drum through the relative movement of the drum and spindle; a uniformity measurement unit for measuring the uniformity of the tire during forward rotation and reverse rotation; and a control device. The control device controls the driving of the rotation of the spindle and the relative positions of the spindle and drum so that when the rotation direction of the spindle is reversed, the spindle and drum are separated from each other such that the spindle rotation speed reaches zero in a state in which the outer peripheral surface of the drum and the tire tread surface are not in contact with each other. As a result, variation in the lateral tire force and conicity can be accurately determined immediately after tire spinning is reversed.

Description

technical field [0001] The present invention relates to a tire uniformity test technique, and in particular, relates to a tire uniformity test technique capable of improving the measurement accuracy of lateral force variation (LFV) and taper force of a tire. Background technique [0002] Conventionally, a tire test (uniformity test) has been performed to measure the uniformity (uniformity) of a finished tire and judge whether the tire is good or bad. For example, the measurement of the uniformity of tires for passenger cars is carried out in the following procedure using a tire uniformity testing machine (hereinafter sometimes simply referred to as a tire testing machine). The tire uniformity testing machine has a main shaft, a load drum (hereinafter referred to as only referred to as "drum"), a pushing mechanism, and an air pressure circuit, the aforementioned main shaft rotates while holding the tire, the aforementioned load drum has an outer peripheral surface, and the af...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M1/16G01M17/02
CPCG01M17/022B60C25/007G01M17/021
Inventor 藤原英人
Owner KOBE STEEL LTD
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