JPH01111368U - - Google Patents
Info
- Publication number
- JPH01111368U JPH01111368U JP310888U JP310888U JPH01111368U JP H01111368 U JPH01111368 U JP H01111368U JP 310888 U JP310888 U JP 310888U JP 310888 U JP310888 U JP 310888U JP H01111368 U JPH01111368 U JP H01111368U
- Authority
- JP
- Japan
- Prior art keywords
- sound
- output signal
- striking
- counting
- threshold value
- 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
Landscapes
- Percussive Tools And Related Accessories (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP310888U JPH01111368U (enrdf_load_stackoverflow) | 1988-01-14 | 1988-01-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP310888U JPH01111368U (enrdf_load_stackoverflow) | 1988-01-14 | 1988-01-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01111368U true JPH01111368U (enrdf_load_stackoverflow) | 1989-07-27 |
Family
ID=31204452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP310888U Pending JPH01111368U (enrdf_load_stackoverflow) | 1988-01-14 | 1988-01-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01111368U (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012125872A (ja) * | 2010-12-15 | 2012-07-05 | Ud Trucks Corp | 自動ハンマーの制御装置 |
| US11207763B2 (en) | 2017-08-29 | 2021-12-28 | Panasonic Intellectual Property Management Co., Ltd. | Signal processing apparatus for tool comprising rotating body rotated by impacts delivered from drive apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5264973A (en) * | 1975-11-22 | 1977-05-28 | Obayashi Gumi Kk | Method of recording pile driving numbers for pile driver |
-
1988
- 1988-01-14 JP JP310888U patent/JPH01111368U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5264973A (en) * | 1975-11-22 | 1977-05-28 | Obayashi Gumi Kk | Method of recording pile driving numbers for pile driver |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012125872A (ja) * | 2010-12-15 | 2012-07-05 | Ud Trucks Corp | 自動ハンマーの制御装置 |
| US11207763B2 (en) | 2017-08-29 | 2021-12-28 | Panasonic Intellectual Property Management Co., Ltd. | Signal processing apparatus for tool comprising rotating body rotated by impacts delivered from drive apparatus |