JPS6423106A - Measuring instrument for tread rest groove of tire - Google Patents
Measuring instrument for tread rest groove of tireInfo
- Publication number
- JPS6423106A JPS6423106A JP62179629A JP17962987A JPS6423106A JP S6423106 A JPS6423106 A JP S6423106A JP 62179629 A JP62179629 A JP 62179629A JP 17962987 A JP17962987 A JP 17962987A JP S6423106 A JPS6423106 A JP S6423106A
- Authority
- JP
- Japan
- Prior art keywords
- tread
- depth
- tire
- rest groove
- ultrasonic wave
- 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.)
- Granted
Links
Landscapes
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
PURPOSE:To instantaneously and accurately measure the depth of the rest grooves of a tire and to display whether or not the depth is proper by converging an ultrasonic wave which is sent by a transmitter receiver by a waveguide and receiving reflected waves from the trend and rest groove bottom surfaces of the tire. CONSTITUTION:The ultrasonic wave transmitter receiver 8 is provided below a cover plate 2a where the tire 1 is mounted so that is adjusted by a stepping motor 7. The emit ultrasonic wave is converged in a beam shape by the waveguide 10 and reflected by the tread 1a or tread reset grooves 1b, and the reflected waves are received. A signal processing part measures the propagation time of the ultrasonic wave and calculates the difference between pieces of distance information on the tread 1a and the bottom surface of the rest groove 1b to find the depth of the tread rest groove 1b. An arithmetic part compares the measured depth of the rest groove 1b of the tread with a reference value corresponding to preset proper tread groove depth to decide and display whether or not the depth of the rest groove of the tread, i.e. the wear quantity of the tread is proper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62179629A JPS6423106A (en) | 1987-07-17 | 1987-07-17 | Measuring instrument for tread rest groove of tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62179629A JPS6423106A (en) | 1987-07-17 | 1987-07-17 | Measuring instrument for tread rest groove of tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6423106A true JPS6423106A (en) | 1989-01-25 |
| JPH0562924B2 JPH0562924B2 (en) | 1993-09-09 |
Family
ID=16069106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62179629A Granted JPS6423106A (en) | 1987-07-17 | 1987-07-17 | Measuring instrument for tread rest groove of tire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6423106A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6883567B2 (en) * | 2000-08-10 | 2005-04-26 | The Yokohama Rubber Co., Ltd. | Pneumatic tire having wear indicator |
| JP2006162562A (en) * | 2004-12-10 | 2006-06-22 | Yokohama Rubber Co Ltd:The | Method and apparatus for measuring rubber thickness of tire surface |
| JP2007255924A (en) * | 2006-03-20 | 2007-10-04 | Denso Corp | Protective member of ultrasonic sensor |
| JP2012225732A (en) * | 2011-04-19 | 2012-11-15 | Mazda Motor Corp | Obstacle detection device for vehicle |
| US11996624B2 (en) | 2020-10-26 | 2024-05-28 | Softbank Corp. | Antenna system and radio relay apparatus |
-
1987
- 1987-07-17 JP JP62179629A patent/JPS6423106A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6883567B2 (en) * | 2000-08-10 | 2005-04-26 | The Yokohama Rubber Co., Ltd. | Pneumatic tire having wear indicator |
| JP2006162562A (en) * | 2004-12-10 | 2006-06-22 | Yokohama Rubber Co Ltd:The | Method and apparatus for measuring rubber thickness of tire surface |
| JP2007255924A (en) * | 2006-03-20 | 2007-10-04 | Denso Corp | Protective member of ultrasonic sensor |
| JP2012225732A (en) * | 2011-04-19 | 2012-11-15 | Mazda Motor Corp | Obstacle detection device for vehicle |
| US11996624B2 (en) | 2020-10-26 | 2024-05-28 | Softbank Corp. | Antenna system and radio relay apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0562924B2 (en) | 1993-09-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |