JPS5664609A - Method and apparatus for measuring tread radius - Google Patents
Method and apparatus for measuring tread radiusInfo
- Publication number
- JPS5664609A JPS5664609A JP14079079A JP14079079A JPS5664609A JP S5664609 A JPS5664609 A JP S5664609A JP 14079079 A JP14079079 A JP 14079079A JP 14079079 A JP14079079 A JP 14079079A JP S5664609 A JPS5664609 A JP S5664609A
- Authority
- JP
- Japan
- Prior art keywords
- tire
- rod
- measuring device
- measuring
- computed
- 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
Links
- 238000005259 measurement Methods 0.000 abstract 1
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
PURPOSE: To increase the measuring accuracy and speed by utilizing a lateral deviation measuring device in a tire deviation measuring apparatus.
CONSTITUTION: The tire deviation measuring apparatus comprises a longitudinal deviation measuring device 16 and a lateral deviation measuring device 17. A semispherical part 43a contacts with the position deviated from the center of a tire tread 1a. The second measuring rod 43 is provided in the lateral deviation measuring device 17, and supported by a bearing 44 and a coil spring 46 so that the rod 43 can be freely moved. The amount of the movement of the second measuring rod 43 can be measured by the second differential transformer 48 via an angle piece 45 and a sensing rod 47. The output signals of the first and second differential transformers 42 and 48 caused by the movement of the first and second rods 37 and 43 accompanied by the rotation of the tire 1 are amplified and computed. Then, the tread radius is computed and indicated by the difference in the amounts of movements and the distance between the rods. Since the average value around the entire periphery of the tire 1 is computed and indicated, the measuring accuracy is enhanced and the tread radius can be concurrently measured with the measurement of the deviation.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14079079A JPS5664609A (en) | 1979-10-30 | 1979-10-30 | Method and apparatus for measuring tread radius |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14079079A JPS5664609A (en) | 1979-10-30 | 1979-10-30 | Method and apparatus for measuring tread radius |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5664609A true JPS5664609A (en) | 1981-06-01 |
Family
ID=15276795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14079079A Pending JPS5664609A (en) | 1979-10-30 | 1979-10-30 | Method and apparatus for measuring tread radius |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5664609A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100492250B1 (en) * | 2002-10-01 | 2005-05-30 | 한국타이어 주식회사 | A radius measuring methode of tire tread |
| JP2006153555A (en) * | 2004-11-26 | 2006-06-15 | Sumitomo Rubber Ind Ltd | Tread radius measuring jig |
-
1979
- 1979-10-30 JP JP14079079A patent/JPS5664609A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100492250B1 (en) * | 2002-10-01 | 2005-05-30 | 한국타이어 주식회사 | A radius measuring methode of tire tread |
| JP2006153555A (en) * | 2004-11-26 | 2006-06-15 | Sumitomo Rubber Ind Ltd | Tread radius measuring jig |
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