CN1787068A - Harmonica - Google Patents

Abstract

The invention discloses a harmonica, which comprises a body, two reed seat plates, two resonance shells and a switching device. Each reed seat plate is provided with a plurality of first reeds which are staggered and parallel and second reeds which are different from the first reeds by a half scale, and only the first reeds or the second reeds can vibrate by means of circulating airflow in the same time and send out tones with different heights by means of controlling the switching device. The compound-tone harmonica is complete in scale, wide in range, and identical in appearance and mouthpiece number to those of the existing compound-tone harmonica.

Description

Harmonica

technical field

The invention relates to a harmonica, in particular to a polyphonic harmonica with complete scales.

Background technique

Referring to FIG. 1 , the existing polyphonic harmonica 1 includes a body 11 , two reed seat plates 12 and two resonance shells 13 . The body 11 has a middle partition body 111 , a plurality of ladder-shaped plates 112 extending parallel and upright from two opposite sides of the middle partition body 111 , and a bottom plate 113 connecting one end of the ladder-shaped boards 112 . The ladder plates 112 cooperate with each other to define a plurality of diversion grooves 14 arranged in parallel. The reed seat plate 12 is respectively bridged on the top edge of the ladder plate 112 so that the flow guide groove 14 becomes a groove shape with only one end open, and the reed seat plate 12 is set corresponding to each flow guide groove 14. Corresponding reed 121 is arranged. Blowing or sucking air to the open end of the guide groove 14 drives the airflow to vibrate the reed 121 to generate pitches of different pitches. The existing polyphonic harmonica is mainly improved for the monophonic harmonica with weak volume and incomplete scale in the early stage. The reed seat plate 12 at the corresponding position on the two sides of the body 11 is provided with the reed 121 of the same scale, so that the playing It can simultaneously vibrate the reeds 121 on both sides to produce polyphony, so it has the advantages of rich timbre and loud sound, etc., which are closer to the timbre of a piano. However, the scale of the existing polyphonic harmonica is incomplete, for example, the chromatic scale cannot be played, so it is often necessary to cooperate with another high semitone polyphonic harmonica to play most of the tunes completely, thereby limiting the development of the existing polyphonic harmonica.

There is another kind of chromatic harmonica on the market. Its structure is similar to that of the existing polyphonic harmonica, but the difference is that the chromatic harmonica is composed of a plurality of chromatic reeds with different tonality. side folded. But the chromatic harmonica can only play single tone and the range is narrow. In order to retain the advantages of the existing polyphonic harmonica, there is another polyphonic harmonica with multiple handles on the market. Its structure is formed by locking multiple polyphonic harmonicas with completely different tonality to one shaft. However, the polyphonic harmonica with multiple wheels must be rotated to change the polyphonic harmonica with different tones when playing, which is quite cumbersome in use and loses the original intention of the harmonica in terms of portability. Even, the size and number of mouthpieces of the above two improved harmonicas are different from those of the existing polyphonic harmonica, so that they are not liked by ordinary harmonica players and are not common.

Contents of the invention

The object of the present invention is to provide a harmonica with complete scales and retaining the advantages of the existing polyphonic harmonica.

The harmonica of the present invention comprises a body, two reed seat plates arranged on the body, a switching device attached to the body, and two resonance shells, and is characterized in that:

The body includes a middle partition body with a base surface, a plurality of ladder-shaped plates arranged parallel and upright in sequence on two sides of the middle partition body, and a bottom plate connecting the end of the ladder-shaped board away from the base surface. And the ladder-shaped plates cooperate with each other to define a plurality of diversion grooves arranged side by side.

The reed seat plates are respectively bridged to the ladder-shaped plates on the two side surfaces of the middle partition body so that the flow guide groove is in the shape of a groove with one end open. And each reed seat plate has a plurality of first reeds corresponding to the spaced diversion grooves and one end can vibrate freely, and a plurality of first reeds with one end can vibrate freely and differ from the first reed by a semitone, and are respectively arranged on the rest The second reed of the guide groove. The first and second reeds can be vibrated by blowing or sucking air against the guide slots of the first and second reeds to produce tones ranging from high to low.

The resonant shells respectively cover the reed seat plates and are used to further modify the timbre of the tone produced by the first and second reeds.

The switching device is attached to the base surface and can be switched along the base surface for the middle partition body, so as to selectively close the interspaced flow guide grooves.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is described in detail:

Fig. 1 is a three-dimensional exploded view of a conventional polyphonic harmonica.

Fig. 2 is a three-dimensional exploded view of a preferred embodiment of the harmonica of the present invention.

Fig. 3 is a fragmentary top view of the preferred embodiment, illustrating that two adjacent flow guide grooves correspond to a mouthpiece respectively.

Fig. 4 is an incomplete top view of the preferred embodiment, illustrating that a plurality of first reeds and a plurality of second reeds are juxtaposed alternately.

Figure 5 is a cutaway side view of the preferred embodiment.

Figure 6 is a cutaway side view of the preferred embodiment.

Figure 7 is a cutaway front view of the preferred embodiment illustrating a fence in a first position.

Fig. 8 is a cutaway front view similar to Fig. 7, illustrating the shutter in a second position.

Detailed ways

As shown in FIGS. 2 and 3 , a preferred embodiment of the harmonica of the present invention includes a main body 3 , two reed seat plates 4 , two resonance shells 5 and a switching device 6 .

The main body 3 includes a middle partition body 31 generally in the shape of a rectangular plate and a mouthpiece 32 . The longitudinal direction of the intermediate partition body 31 is parallel to a base line X, and has a base surface 311 arranged along the longitudinal direction, and a plurality of trapezoidal ladders arranged parallel and upright on the two side surfaces 312 of the intermediate partition body 31 in sequence. The plate 313 and the bottom plate 315 connecting the end of the ladder plate 313 away from the base surface 311 . The ladder plates 313 cooperate with each other to define a plurality of diversion grooves 314 arranged in parallel. The diversion grooves 314 are sequentially arranged with every two diversion grooves 314 as a unit starting from one end of the middle partition body 31 , and the function of the unit configuration will be described later.

The mouthpiece part 32 is separated from the base surface 311 by a distance, and two ends are connected to two opposite ends of the body 3 in the longitudinal direction. The mouthpiece part 32 is provided with a plurality of mouthpieces 321, and the appearance of the mouthpieces 1321 is the same as that of the existing polyphonic harmonica, so that the operation of the harmonica of the present invention is not much different from that of the existing polyphonic harmonica. 321 corresponds to two guide grooves 314 configured in the same unit.

As shown in FIGS. 2 and 4 , the reed seat plate 4 is respectively bridged on the top edge of the ladder plate 313 and the nozzle portion 32 , so that the flow guiding groove 314 becomes a groove shape with only one end open. And each reed seat plate 4 has a plurality of first reeds 41 that can vibrate freely at one end and a plurality of second reeds 42 that are adjacent to the first reed 41 with a semitone difference and one end that can vibrate freely. The first and second reeds 41 and 42 form a reed unit, and each reed unit corresponds to two guide grooves 314 configured in the same unit. It should be noted here that not every scale requires a chromatic reed. For example, between Mi and Fa or between Si and Do itself is a half-tone difference. Correspondingly, between Mi and Fa or between Si and Do The second reed 42 does not need to be provided. The first reed 41 can be vibrated to generate high and low tones by blowing or sucking air against the flow guide groove 314 provided with the first reed 41 . Blowing or sucking air against the guide groove 314 provided with the second reed 42 can also vibrate the second reed 42 to produce pitches of different heights and a half-tone difference from the first reed 41 . Since the reed seat plate 4 is attached to the body 3 in a manner corresponding to two sides of the body 3, when playing, the first reeds 41 corresponding to one set of two sides vibrate and resonate at the same time. The same is true for the corresponding second reeds 42 on both sides. It is worth noting that in actual use, the first reed 41 and the second reed 42 corresponding to the two sides can also be adjusted to make the actual audio produced by the two slightly different, thereby enhancing the tremolo effect and making the sound similar to an accordion . In addition, the reed seat plates 4 respectively have a fitting hole 43 for partially inserting the switch device 6 so that the switch device 6 is fitted between the reed seat plates 4 .

As shown in FIGS. 2 and 5 , the resonance housing 5 is respectively arranged on the reed seat plate 4 and covers the first and second reeds 41 and 42 . And the resonant housing 5 cooperates with the reed seat plate 4 respectively to define a resonant chamber 51, and the resonant chamber 51 is used to further modify the output generated by the first and second reeds 41, 42. The timbre of the tone.

As shown in FIGS. 5 and 6 , the switching device 6 includes a baffle 61 , a hollow shell 62 and a reset element 63 . The hollow casing 62 is interposed between the middle partition body 31 and the mouthpiece 32, and has a front plate 621 fixed to the mouthpiece 32 and a front plate 621 fixed to the base. surface 311 of the rear plate 622, and the surface of the front plate 621 forms a plurality of front perforations 623 corresponding to the mouthpiece 321 (see Figure 3), and the surface of the rear plate 622 forms a plurality of corresponding to the guide groove 314 The rear perforation 624. The baffle plate 61 is slidably sandwiched between the front and rear plates 621 , 622 , and has a plurality of diversion holes 611 arranged at intervals and an adjustment handle 612 protruding from the main body 3 . The baffle 61 can be controlled to move and switch along the base line X by operating the tuning handle 612 . The reset element 63 is disposed between the baffle plate 61 and the body 3 , and is a torsion spring in this preferred embodiment. It should be noted that the baffle plate 61 has only one adjustment handle 612 in this preferred implementation, however, in actual use, two adjustment handles 612 may be provided at two opposite ends of the baffle plate 61 respectively.

As shown in FIG. 7, when the baffle 61 is in the first position 64, the baffle 61 closes the flow guide groove 314 provided with the second reed 42, so that the air flow only passes through the The guide groove 314 of the first reed 41 is described, and the player only blows the first reed 41 at this moment. Referring to FIG. 8 , when the player needs to change the tone, the player presses the tone change handle 612 in the direction indicated by the arrow in the figure to move the baffle plate 61 from the first position 64 to the second position 65 . When the baffle plate 61 is in the second position 65, the baffle plate 61 closes the flow guide groove 314 provided with the first reed 41, so that the air flow only passes through the second reed 42 At this time, the player only blows the second reed 42 and raises or lowers the tone by a semitone.

As shown in Figures 3, 4 and 7, taking a mouthpiece 321 aligned with the first reed 41 whose tone is Re and the second reed 42 whose tone is rising Re as an example, the original tone sent by inhalation is Re , after pressing the pitch shifting handle 612, the tone produced by inhalation is rising Re. When the pitch shifting handle 612 is released, the baffle plate 61 elastically returns to the first position 64 via the reset element 62 , and the mouthpiece 321 that pronounces the rising Re returns to the original Re. Similarly, when a certain mouthpiece 321 is aimed at the first reed 41 with the tone of Re and the second reed 42 with the tone of flat Re at the same time, the tone of the mouthpiece 321 can also be switched by the above operation.

It should be added that the above description is only a preferred embodiment of the present invention. In actual use, if only one reed seat plate 4 is provided on one side, the same effect can be achieved, so it is still covered by the patent of the present invention. within the range.

Claims (9)

1. a mouth organ comprises a body, two and is located at the switching device shifter that the reed seat board and of described body fits in described body, it is characterized in that:

Described body comprise a median septum body with a basal plane, plural number in regular turn parallel upright be arranged at described median septum body two side faces and cooperatively interact define plural number side by side diversion trench the scalariform plate and connect the base plate of described scalariform plate away from described basal plane one end;

Described reed seat board bridges at the scalariform plate of described median septum body two side faces respectively so that described diversion trench becomes the open groove shape of an end, and each reed seat board has that plural number corresponds to first reed that diversion trench separately and an end can freely shake respectively and a plural end can freely shake and differ chromatic scale with described first reed and be located at second reed of all the other diversion trenchs respectively;

Described switching device shifter fits in described basal plane and can switch along described basal plane at described median septum body, in order to optionally to seal diversion trench separately.

2. mouth organ as claimed in claim 1 is characterized in that:

Described body also comprises a blow gun portion relative at interval with described basal plane and that fit with described switching device shifter, and described blow gun portion has most mouthpieces and adjacent two diversion trenchs are distinguished a corresponding mouthpiece.

3. mouth organ as claimed in claim 1 is characterized in that:

Described switching device shifter comprises a baffle plate, and described baffle plate can one only the sealing primary importance and of first diversion trench that is provided with described second reed only seal between the second place of first diversion trench that is provided with described first reed and switch.

4. mouth organ as claimed in claim 3 is characterized in that:

Described baffle plate has the modified tone handle that most pod apertures and stretch out described median septum body.

5. mouth organ as claimed in claim 3 is characterized in that:

Described switching device shifter comprises that also a reposition element makes described modified tone handle deflection be positioned at described primary importance with perseverance.

6. mouth organ as claimed in claim 5 is characterized in that:

Described reposition element is a torque spring.

7. mouth organ as claimed in claim 5 is characterized in that:

Described switching device shifter comprises that also one is fixedly arranged on described basal plane, and the hollow housing that plugs slidably for described baffle plate, described hollow housing also has a back plate and a most back perforation that forms described back plate and correspond to described first diversion trench respectively that fits in described basal plane.

8. mouth organ as claimed in claim 1 is characterized in that:

Described reed seat board also has one respectively and supplies described switching device shifter partly to plug so that described switching device shifter is embedded in the embedded hole between the described reed seat board.

9. mouth organ as claimed in claim is characterized in that:

Described mouth organ also comprises the two sympathetic response housings that cover described reed seat board respectively.

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