Patent Application
20080264237
The invention relates to a musical instrument, comprising a so-called cabasa with a cylindrical main body, about the periphery of which beaded sounding bodies extend that interact with the surface of the main body to produce a tone when a shaking movement is performed, and a joined-on handle that extends away from the main body.
Cabasas are known as rhythm instruments and have a very characteristic tone color. They are usually played in such a manner that the joined-on handle or grip is grasped with one hand, and a rhythmic shaking movement of the hand causes the sounding bodies to impact against or slide along the metal surface of the main body.
Playing the cabasa usually requires both hands, making it impossible to simultaneously play the drums or any other musical instrument with two hands.
With this as the as the starting point, the invention is based on the object of improving a cabasa in a manner such that it can be used even more universally.
This object is met according to the invention in such a way that the joined-on handle is mounted in a manner so as to be able to pivot, that a foot pedal is provided, and that a pivot movement of the foot pedal is converted by means of a transmission device, particularly a transmission linkage or a toothed belt, into a pivot movement of the joined-on handle.
The cabasa player accordingly has two free hands available with which to play any desired additional musical instrument.
A base plate is preferably provided for mounting the cabasa, with supports extending in an upwardly direction from one end of the base plate, wherein pivot bearings for the joined-on handle of the cabasa are disposed in the region of the upper ends of the supports, and wherein a pivot bearing for the foot pedal is disposed in the region of the end of the base plate opposite the supports.
The transmission linkage is advantageously implemented in such a way that, on the joined-on handle of the cabasa, a second lever is provided, which is connected via a pivot joint to a first lever arm, wherein both lever arms together enclose an acute angle, and wherein the end of the second lever aim opposite the pivot joint is provided [sic] via an additional pivot joint to the foot pedal or to an extension of the foot pedal.
Additionally, a reset spring may be provided, which pulls or pushes the foot pedal back into its normal position at an incline relative to the base plate after a downward deflection.
The reset spring may advantageously be implemented in the form of a helical spring that is affixed at one end to the top surface of the supports, and at the other end to the foot pedal.
An additional embodiment provides that between the joined-on handle of the cabasa and the first lever arm, a lockable free-wheel mechanism is disposed, which effects that, in dependence upon whether it is locked or not, both the upward and downward movement of the foot pedal are converted into a pivot movement of the cabasa, or only one of these movements.
The invention will be described in more detail below based on a preferred exemplary embodiment in conjunction with the drawing, in which:
A musical instrument 1 shown in the drawing comprises a cabasa 2 having a drum-shaped main body 3 and a plurality of beaded sounding bodies 4 extending about the periphery of the main body 3 in the style of a string of beads.
A joined-on handle 5 is connected to the main body 3 and mounted on two supports 6 via pivot bearings 7 in a manner so as to be able to pivot. The supports 6, in turn, are connected at right angles to a base plate 8, which is composed of a plurality of bars 9 that extend parallel to each other.
At the end 10 of the base plate 8 opposite the supports 6, a foot pedal 12 is mounted via a pivot bearing 11 in a manner so as to be able to pivot, the foot pedal 12, in turn, being composed of a plurality of bars 13 that can downwardly engage between the bars 9 of the base plate 8 when the foot pedal 12 is depressed.
At the end of the foot pedal 12 opposite the pivot bearing 11, a bolt 14 is provided, onto which attenuating rollers 15 are placed that dampen the striking of the end stop when the foot pedal 12 is being fully depressed downward, to prevent a metallic sound from occurring.
Extending from the bolt 14 in extension of the foot pedal 12 is an extension piece 16, which is connected to a lever configuration 17. The lever configuration 17 comprises a first lever 18, which is connected to the joined-on handle 5 of the cabasa, and which is connected at its other end via a pivot bearing 19 to a second lever 20, which, in turn, is connected via a pivot bearing 21 to the extension piece 16 of the foot pedal 12.
Between the second lever 20 and the joined-on handle 5 of the cabasa 2, a lockable free-wheel mechanism 22 is provided, which transfers the pivot movements of the first lever 18 to the joined-on handle 5, either in both directions or, optionally, only in one direction.
For resetting the foot pedal 12 into the normal position, a helical spring 23 is provided, which is affixed, at 24, to the upper end of a support 6 at one end and to the inner bottom end of the extension piece 16 of the foot pedal 12 at the other end, and which correspondingly pulls the foot pedal 12 into the normal position depicted in
For connecting the projecting handle 5 to the transmission linkage, a locking screw 25 is provided.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2007 001 871.1 | Feb 2007 | DE | national |
| 10 2007 040 464.8 | Aug 2007 | DE | national |
