JPH0410631Y2 - - Google Patents
Info
- Publication number
- JPH0410631Y2 JPH0410631Y2 JP12537783U JP12537783U JPH0410631Y2 JP H0410631 Y2 JPH0410631 Y2 JP H0410631Y2 JP 12537783 U JP12537783 U JP 12537783U JP 12537783 U JP12537783 U JP 12537783U JP H0410631 Y2 JPH0410631 Y2 JP H0410631Y2
- Authority
- JP
- Japan
- Prior art keywords
- light
- groove
- hammer shank
- light guide
- hammer
- 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.)
- Expired
Links
- 239000013307 optical fiber Substances 0.000 claims description 29
- 230000007246 mechanism Effects 0.000 claims description 19
- 230000000694 effects Effects 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 235000014676 Phragmites communis Nutrition 0.000 description 2
- 244000145845 chattering Species 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12537783U JPS6033395U (ja) | 1983-08-12 | 1983-08-12 | 自動演奏ピアノの演奏情報センサ− |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12537783U JPS6033395U (ja) | 1983-08-12 | 1983-08-12 | 自動演奏ピアノの演奏情報センサ− |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6033395U JPS6033395U (ja) | 1985-03-07 |
| JPH0410631Y2 true JPH0410631Y2 (en]) | 1992-03-16 |
Family
ID=30285471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12537783U Granted JPS6033395U (ja) | 1983-08-12 | 1983-08-12 | 自動演奏ピアノの演奏情報センサ− |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6033395U (en]) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH066399Y2 (ja) * | 1984-07-17 | 1994-02-16 | ヤマハ株式会社 | 自動ピアノの演奏情報センサー |
| JP3979168B2 (ja) * | 2002-04-26 | 2007-09-19 | ヤマハ株式会社 | 鍵盤楽器の押鍵検出装置における発光部構造 |
-
1983
- 1983-08-12 JP JP12537783U patent/JPS6033395U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6033395U (ja) | 1985-03-07 |
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