Whistle
OwnerHideomi Shishidoinventor
Life of this patent
Estimating the term…
Abstract
An object of the present invention is to provide a whistle which has a resonance frequency shifted to the low-frequency side and a pleasant tone while retaining a compact size and light weight. In order to attain this object, a whistle comprises a mouthpiece portion, inside which an air passageway is formed and in which an air opening is opened, and a body portion, in which a connected resonance chamber that is connected to the air passageway is formed; the connected resonance chamber comprises a first resonance chamber, a second resonance chamber in which a sound-emitting opening is opened, and an orifice connecting the first resonance chamber and the second resonance chamber.
Claims20
A whistle, comprising:
- a mouthpiece portion, inside which an air passageway is formed and in which an air opening is opened;
- and
- a body portion, in which a connected resonance chamber that is connected to the air passageway is formed, the body portion being inclined upwardly toward the mouthpiece portion and the mouthpiece portion being connected to a part of the body portion substantially in the center in a vertical direction,
- wherein the connected resonance chamber comprises a first resonance chamber, a second resonance chamber in which a sound-emitting opening is opened, and an orifice through which the first resonance chamber communicates with the second resonance chamber and wherein an axis of the body portion in a length direction is inclined upwardly toward the mouthpiece portion, and the angle of intersection of the axis of the body portion in the length direction and an axis of the mouthpiece portion in a length direction is 30° to 70°.
A whistle, comprising:
- a mouthpiece portion, inside which an air passageway is formed and in which an air opening is opened;
- and
- a body portion, in which a connected resonance chamber that is connected to the air passageway is formed, the body portion being inclined upwardly toward the mouthpiece portion and the mouthpiece portion being connected to a part of the body portion substantially in the center in a vertical direction,
- wherein the connected resonance chamber comprises a first resonance chamber, a second resonance chamber in which a sound-emitting opening is opened, and an orifice through which the first resonance chamber communicates with the second resonance chamber, the second resonance chamber being formed in an upper portion of the body portion, and the first resonance chamber being formed in a lower portion of the body portion, and
- wherein an upper end of a portion forming the second resonance chamber at a rear wall of the body portion is curved frontward.
A whistle, comprising:
- a mouthpiece portion, inside which an air passageway is formed and in which an air opening is opened;
- and
- a body portion, in which a connected resonance chamber that is connected to the air passageway is formed,
- wherein the connected resonance chamber comprises a first resonance chamber, a second resonance chamber in which a sound-emitting opening is opened, and an orifice through which the first resonance chamber communicates with the second resonance chamber, and
- wherein the connected resonance chamber shifts the resonance frequency to a lower frequency.
Dependencies are inferred from the claim text.