Flute
AssigneeWalter Haedrich
InventorsWalter Haedrich, J. Dennis Lawson
Life of this patent
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Abstract
The flute invention relates to fingering mechanisms. More readily attained and maintained technical competence in playing the flute is enabled by facilitator mechanism (13) for improved actuation of the B flat key. Facilitator mechanism (14) includes a rocker bar (54) coupling the Briccialdi B flat lever to the rod assembly sections carrying the B flat key and the G key. Coupling between the G sharp lever and the B flat key is maintained by cam (67, 81) and plate (68, 82).
Claims7
In a Boehm flute having a B flat key, Briccialdi B flat lever, G key and G sharp lever mounted on rod and sleeve assemblies, a facilitator mechanism for operating the B flat key comprising:
- rocker arm means pivotally suspended between the Briccialdi B flat lever and the rod and sleeve assemblies bearing the B flat key and coupled between the B flat key and the G key;
- foot means fixed to, extending from, and movable by operation of, the Briccialdi B flat lever to engage and tilt said rocker arm means in a first direction for moving the B flat key from open to closed position;
- and
- said rocker arm means being movable by operation of the G key to tilt in a second direction for moving the B flat key from closed to open position if the Briccialdi B flat lever is being operated.
In a Boehm flute having a B flat key, Briccialdi B flat lever, G key and G sharp lever mounted on rod and sleeve assemblies, a facilitator mechanism for operating the B flat key comprising:
- rocker arm means pivotally coupled between the B flat key and the G key;
- foot means extending from, and movable by operation of, the Briccialdi B flat lever to engage and tilt said rocker arm means in a first direction for moving the B flat key from open to closed position;
- and
- a lever has a first end fixed to the rod and sleeve assembly bearing the B flat key and a second end bearing said rocker arm means, a flat portion is formed on said second end, and a flange is formed on said rocker arm means and engages said flat portion,
- said rocker arm means being movable by operation of the G key to tilt in a second direction for moving the B flat key from closed to open position if the Briccialdi B flat lever is being operated.
In a Boehm flute having a B flat key, Briccialdi B flat lever, G key and G sharp lever mounted on rod and sleeve assemblies, a facilitator mechanism for operating the B flat key comprising:
- rocker arm means pivotally coupled between the B flat key and the G key;
- foot means extending from, and movable by operation of, the Briccialdi B flat lever to engage and tilt said rocker arm means in a first direction for moving the B flat key from open to closed portion;
- said rocker arm means being movable by operation of the G key to tilt in a second direction for moving the B flat key from closed to open position if the Briccialdi B flat lever is being operated;
- and
- spring means, extending from the Briccialdi B flat lever to said rocker arm means, for biasing and preventing axial rotation of said rocker arm means.
Dependencies are inferred from the claim text.