Knee-lever device or arrangement for electronic musical instruments |
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| 申请号 | US3603170D | 申请日 | 1970-02-13 | 公开(公告)号 | US3603170A | 公开(公告)日 | 1971-09-07 |
| 申请人 | NIPPON MUSICAL INSTRUMENTS MFG; | 发明人 | YAMAUCHI TAKAO; | ||||
| 摘要 | A knee-lever arrangement for an electronic musical instrument comprises a plurality of knee-operated levers which, in a nonoperable position, rest on the instrument so as not to be obstructive to the player, and which can be simultaneously operated to control various sound effects, in an operable position in which they may be selectively set ready to operate. | ||||||
| 权利要求 | 1. A knee-lever device for use in an electronic musical instrument for operating a control element for controlling a musical sound effect, the device comprising a support, a kneelever having an extension rotatably mounted on sAid support, a knee-operated portion and an arm for engagement with the control element, and a spring means for keeping said knee-lever selectively in a nonoperable position in which said lever rests on the support and in an operable position in which said lever is ready to operate, and for returning said lever to said operable position from an operative terminal position in which said arm of the lever is in engagement with the control element. 2. A knee-lever device for use in an electronic musical instrument as claimed in claim 1 in which said knee-lever has a shoulder engageable with the support to define the operative terminal position of the lever. 3. A knee-lever device for use in an electronic musical instrument as claimed in claim 1 in which said spring means comprises a coiled spring acting as a tension spring when the lever is pressed to the operative terminal position and as a compression spring when the lever is in the nonoperable position. 4. A knee-lever arrangement for use in an electronic musical instrument for operating control elements for controlling musical sound effects, the arrangement comprising a support, knee-levers each having an extension rotatably mounted on said support, a knee-operated portion and an arm for engagement with the control element, and spring means for keeping said knee-levers selectively in a nonoperable position in which said levers rest on the support and in an operable position in which said levers are ready to operate, and for returning said levers to said operable position from an operative terminal position in which the arms of the levers are in engagement with the control elements. 5. A knee-lever arrangement for use in an electronic musical instrument as claimed in claim 4 in which the knee-operated portions of said knee-levers are substantially aligned in said operable position so as to be collectively pressed and released. 6. A knee-lever arrangement for use in an electronic musical instrument as claimed in claim 4 in which said knee-levers have shoulders engageable with the support to define the operative terminal position of the levers. 7. A knee-lever arrangement for use in an electronic musical instrument as claimed in claim 4 in which said spring means comprise coiled springs corresponding in number to said knee-levers and each acting as a tension spring when the lever is pressed to the operative terminal position and also as a compression spring when the lever is in the nonoperable position. |
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