JPS6432142A - Gas pressure measuring instrument for wheel tire - Google Patents

Gas pressure measuring instrument for wheel tire

Info

Publication number
JPS6432142A
JPS6432142A JP18989887A JP18989887A JPS6432142A JP S6432142 A JPS6432142 A JP S6432142A JP 18989887 A JP18989887 A JP 18989887A JP 18989887 A JP18989887 A JP 18989887A JP S6432142 A JPS6432142 A JP S6432142A
Authority
JP
Japan
Prior art keywords
gas pressure
plate
light
crossing
tire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP18989887A
Other languages
Japanese (ja)
Inventor
Migi Ichikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP18989887A priority Critical patent/JPS6432142A/en
Publication of JPS6432142A publication Critical patent/JPS6432142A/en
Pending legal-status Critical Current

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  • Measuring Fluid Pressure (AREA)

Abstract

PURPOSE:To measure gas pressure in rotation by providing a light control plate which varies the passage quantity of light, etc., to a bellows which expands and shrinks as the gas pressure in a tire varies, and converting variation in the quantity of light crossing the control plate into gas pressure and displaying the gas pressure. CONSTITUTION:One end 31 of the bellows 31 which expands and shrinks lengthwise with the gas pressure in the tire is connected to the tire and the other end is connected to the light control plate 5. Then an optical fiber 7 is arranged crossing the plate 5 at right angles as an optical path 6 crossing the plate 5 and, for example, the quantity of light crossing the plate 5 varies from the base end part 51 to the tip part 52. Then when the gas pressure decreases, the bellows 3 shrinks, the plate 5 moves to reduce light reaching a photodetection end 9, and the photodetection quantity is displayed on a gas display device which performs conversion to gas pressure. Thus, the gas pressure is measured without stopping a wheel.
JP18989887A 1987-07-29 1987-07-29 Gas pressure measuring instrument for wheel tire Pending JPS6432142A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18989887A JPS6432142A (en) 1987-07-29 1987-07-29 Gas pressure measuring instrument for wheel tire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18989887A JPS6432142A (en) 1987-07-29 1987-07-29 Gas pressure measuring instrument for wheel tire

Publications (1)

Publication Number Publication Date
JPS6432142A true JPS6432142A (en) 1989-02-02

Family

ID=16249036

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18989887A Pending JPS6432142A (en) 1987-07-29 1987-07-29 Gas pressure measuring instrument for wheel tire

Country Status (1)

Country Link
JP (1) JPS6432142A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5193387A (en) * 1990-09-26 1993-03-16 Bridgestone Corporation Tire-interior monitoring apparatus
KR19980043308A (en) * 1996-12-02 1998-09-05 박병재 Tire pressure test device of automobile
US7249497B2 (en) 2003-07-21 2007-07-31 Akron Rubber Development Laboratory, Inc. Apparatus and method for predicting tire life relative to belt-leaves-belt failures

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5635035A (en) * 1979-08-31 1981-04-07 Toshiba Corp Pressure display unit
JPS5960333A (en) * 1982-09-30 1984-04-06 Anritsu Corp Pressure detector
JPS60131306A (en) * 1983-12-21 1985-07-13 Hitachi Ltd tire pressure monitoring device
JPS6258725B2 (en) * 1984-02-03 1987-12-08 Matsushita Electric Ind Co Ltd

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5635035A (en) * 1979-08-31 1981-04-07 Toshiba Corp Pressure display unit
JPS5960333A (en) * 1982-09-30 1984-04-06 Anritsu Corp Pressure detector
JPS60131306A (en) * 1983-12-21 1985-07-13 Hitachi Ltd tire pressure monitoring device
JPS6258725B2 (en) * 1984-02-03 1987-12-08 Matsushita Electric Ind Co Ltd

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5193387A (en) * 1990-09-26 1993-03-16 Bridgestone Corporation Tire-interior monitoring apparatus
KR19980043308A (en) * 1996-12-02 1998-09-05 박병재 Tire pressure test device of automobile
US7249497B2 (en) 2003-07-21 2007-07-31 Akron Rubber Development Laboratory, Inc. Apparatus and method for predicting tire life relative to belt-leaves-belt failures

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