Title:
タイヤのラジアルフォースバリエーションの修正方法及び修正装置
Document Type and Number:
Japanese Patent JP4571342
Kind Code:
B2
Abstract:
A radial force variation of a tire (1) is corrected irrespective of the kind of the organic fiber cord used, wherein a radial force variation (RFV) is measured at room temperature to specify a tire position indicating a minimum value of RFV, and an inner face (2is) of a tread portion (2) is pushed and enlarged outward in a radial direction of the tire by a pushing means (104) at a RFV bottom region sandwiching the position of the minimum RFV value from both sides thereof in a circumferential direction of the tread portion, and such a push enlarged state is kept for a given time. This is achieved by apparatus comprising a split rim (101,102) assembling the tire, a pushing means (104) arranged on either one segment of the split rim, and a feed and discharge valve (111,112) of a pressurized gas to an inside of the tire assembled onto the rim, in which a pushing member (105) reciprocatively moving in a radial direction of the tire assembled onto the rim and pushing an inner face (2is) of the tread portion (2) from an inside of the tire is arranged in the pushing means (104) and either one segment (101) of the split rim is fixed to a main body of the apparatus and the other segment (102) is connected to a moving means (103) in an axial line direction of the rim displacing the rim between operation position and non-operation position in the assembling of the tire.
Inventors:
Yuichiro Ogawa
Application Number:
JP2001184473A
Publication Date:
October 27, 2010
Filing Date:
June 19, 2001
Export Citation:
Assignee:
Bridgestone Corporation
International Classes:
G01M1/38; B29C71/00; B29D30/06; B60C19/00; G01M1/04; G01M1/32; G01M1/36; G01M17/02
Domestic Patent References:
| JP6507858A | ||||
| JP2000280264A | ||||
| JP2001212888A | ||||
| JP2001260244A | ||||
| JP2000296522A |
Attorney, Agent or Firm:
Kosaku Sugimura