JPS6410794U - - Google Patents
Info
- Publication number
- JPS6410794U JPS6410794U JP10606087U JP10606087U JPS6410794U JP S6410794 U JPS6410794 U JP S6410794U JP 10606087 U JP10606087 U JP 10606087U JP 10606087 U JP10606087 U JP 10606087U JP S6410794 U JPS6410794 U JP S6410794U
- Authority
- JP
- Japan
- Prior art keywords
- keyboard
- fulcrum
- chassis
- swingable
- action member
- 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
- 238000010586 diagram Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Description
図面は本考案に係る電子楽器の鍵盤装置を示す
もので、第１図は１実施例の縦断面図、第２図は
複数の突部を示すもので同図ａ，ｂ，ｃ、は３点
の変形例の側面図、第３図、第４図、第５図は複
数の突部から成る支持部の作用説明図、第６図、
第７図、第８図は支持部の作用を中心に各部の力
学的関係を説明した力学的状態図、第９図、第１
０図、第１１図は彎曲ばね８の作用説明図、第１
２図は鍵押上げ力の変化を示す特性曲線図、第１
３図は押鍵重さに与える力の変化を示す特性曲線
図、第１４図は第１２図、第１３図を合成した特
性曲線図である。
１……シヤーシ、２……鍵盤支点、３……鍵盤
、４……支持部、５……アーム部、６……支点、
７……アクシヨン部材、８……彎曲ばね、９……
加圧ばね、１０１，１０２……突部。
The drawings show a keyboard device for an electronic musical instrument according to the present invention, and FIG. 1 is a longitudinal cross-sectional view of one embodiment, and FIG. 2 shows a plurality of protrusions. 3, 4, and 5 are side views of point modifications; FIGS.
Figures 7 and 8 are mechanical state diagrams that explain the mechanical relationships of each part with a focus on the action of the support part, Figures 9 and 1.
0 and 11 are explanatory diagrams of the action of the curved spring 8, and the first
Figure 2 is a characteristic curve diagram showing changes in key pressing force, the first
FIG. 3 is a characteristic curve diagram showing changes in force applied to key depression weight, and FIG. 14 is a characteristic curve diagram combining FIGS. 12 and 13. 1... Chassis, 2... Keyboard fulcrum, 3... Keyboard, 4... Support part, 5... Arm part, 6... Fulcrum,
7... Action member, 8... Curved spring, 9...
Pressure spring, 10 1 , 10 2 ... protrusion.
Claims (1)
せた揺動可能な鍵盤３と、上部に鍵盤３を中間部
で支える支持部４を有し、下部に荷重を負荷する
アーム部５を設けかつそれ自体は支持部４とアー
ム部５との間の支点６によりシヤーシ１へ取付け
られた揺動可能なアクシヨン部材７と、一端をア
クシヨン部材７の上部に係合し、他端を鍵支点２
近くへ係合した彎曲ばね８、及び鍵盤３を鍵支点
２へ加圧する加圧ばね９とを備えており、支持部
４と鍵盤３の当接部を複数個の突部１０１…によ
り構成したことを特徴とする電子楽器の鍵盤装置
。 The chassis 1 has a swingable keyboard 3 supported by a keyboard fulcrum 2 at the rear end, a support part 4 at the upper part that supports the keyboard 3 at an intermediate part, and an arm part 5 that loads the load at the lower part. It consists of a swingable action member 7 which is attached to the chassis 1 by a fulcrum 6 between the support part 4 and the arm part 5, one end of which is engaged with the upper part of the action member 7, and the other end of which is connected to the key fulcrum 2.
It is equipped with a curved spring 8 that is engaged closely and a pressure spring 9 that presses the keyboard 3 toward the key fulcrum 2, and the contact portion between the support portion 4 and the keyboard 3 is formed by a plurality of protrusions 101 ... A keyboard device for an electronic musical instrument characterized by:
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10606087U JPH0442877Y2 (en) | 1987-07-10 | 1987-07-10 | |
| IT8819175A IT8819175A0 (en) | 1987-01-22 | 1988-01-22 | KEYBOARD FOR ELECTRONIC MUSICAL INSTRUMENT, ESPECIALLY FOR AN ELECTRONIC PIANO. |
| IT02120590U IT219787Z2 (en) | 1987-01-22 | 1990-05-18 | KEYBOARD FOR ELECTRONIC MUSICAL INSTRUMENT, IN PARTICULAR FOR AN ELECTRONIC PLAN |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10606087U JPH0442877Y2 (en) | 1987-07-10 | 1987-07-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6410794U true JPS6410794U (en) | 1989-01-20 |
| JPH0442877Y2 JPH0442877Y2 (en) | 1992-10-09 |
Family
ID=31339231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10606087U Expired JPH0442877Y2 (en) | 1987-01-22 | 1987-07-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0442877Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01169494A (en) * | 1987-10-29 | 1989-07-04 | Roorand Kk | Keyboard device for electronic musical instrument |
-
1987
- 1987-07-10 JP JP10606087U patent/JPH0442877Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01169494A (en) * | 1987-10-29 | 1989-07-04 | Roorand Kk | Keyboard device for electronic musical instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0442877Y2 (en) | 1992-10-09 |
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