JPS5841588Y2 - Polyphonic keyboard wind instrument - Google Patents

Description

[Detailed description of the invention] This invention relates to a keyboard wind instrument that uses multiple notes to increase the volume and produce a gorgeous tone.

All conventional keyboard wind instruments are of a type in which only a single note valve can be used for each instrument, so they are unsatisfactory in terms of volume and tone, and it is desirable to make them multitone. However, the structure of the sound part became complicated,
Due to difficulties such as the significantly large size of the vessel, it was not possible to see its realization.

This invention was made in view of these circumstances, and aims to provide a compact multi-tone keyboard wind instrument without complicating the structure or increasing the size.

To explain the illustrated embodiment, in FIGS. 1 and 2, reference numeral 1 denotes an abutment of a required size, which has a vertical partition 1a on the right side, and a left side on the left side of this vertical partition 1a. A long trumpet-shaped air passage 1b is formed on the right side, and a short air passage 1c is formed on the right side, giving the side surface a substantially engineering shape.

A keyboard stand 2 is attached to the top surface of the support stand 1, and this keyboard stand 2
The same number of upright pieces 2a as keys are provided at the left end in the longitudinal direction at required intervals, and one end of the required number of keys is pivotally supported on each upright piece 2a.

Each weight K is connected through the keyboard stand 2 and the vertical partition 1a of the support stand 1.
Valve insertion holes 3 are formed at positions corresponding to the valve insertion holes 3, and a plate-shaped opening/closing valve 4 as shown in FIG. 3 is fitted into each valve insertion hole 3 so as to be able to slide vertically. .

As shown in FIG. 3, this plate-shaped opening/closing valve 4 has a horizontal through hole 4a in its center and a rod 4b extending upward at its upper end.A rod 4c is attached to the rod 4b. Furthermore, a notch 4d is provided at the upper end.

Therefore, as shown in FIG.
d is locked to a locking device Ka provided inside the key and connected to the key, and a coil spring 5 of a required strength is provided between the collar 4c and the top surface of the keyboard stand 2, respectively. The passage hole 4a is arranged so as to be different from the horizontal hole 1d provided in the vertical partition 1a of the support 1, and the air passage 1b on the left side and the air passage on the right side of the support 1 are connected to each other. 1c.

On the right side of the support base 1, a horizontal piece 6 consisting of a vertical piece 6a and a horizontal piece 6b is attached so that the horizontal piece 6b extends to the right. Piece 6a
A 7-shaped reed plate 7 is horizontally fixed to the right side of the reed plate 7 so as to straddle the horizontal piece 6b, and upper and lower flute chambers 10a and 10b are formed between the horizontal piece 6b and the horizontal piece 6b.

In the vertical piece 6a, a pair of upper and lower through holes 11 are bored in the longitudinal direction, the number of which corresponds to the number of keys, and the upper and lower whistle chambers 10a, 10
b are communicated with the right side air passage 1c of the support base 1, respectively.

■ Upper and lower pieces of letter-shaped lead plate 7? a, 7b has the second
As shown in Figure 4, the same number of lead holes 8a, ab as in the key.
are provided at predetermined intervals in the longitudinal direction, and leads 9a and 9b are fixed to the outside of each lead hole 8a and sb, respectively.

Further, the flute chambers 10a, 10b and the right side air passage 1c of the support 1 are partitioned by partition walls 12.13 (FIG. 4) into the same number of keys.

Reference numeral 14 denotes a cover attached to the vertical piece 6a of the partitioning member 6 so as to form an air chamber 15 outside the reed plate 7, and its l end is connected to the mouthpiece 1 provided on the side lid (not shown).
6, and is provided with a cushioning material 11 on its upper surface.

Reference numeral 18 denotes a groove-shaped case that houses the main body of the instrument, which is made up of a support 1, a partition material 6, a reed plate 7, and a cover 14, and has a number of slits 18a on the right side for adjusting tone. There is.

Since it is configured as described above, when performing, the Utaguchi 16
By blowing air into the air chamber 15 inside the cover 14 and operating the required key, the opening/closing valve 4 at the relevant location is lowered against the spring force of the coil spring 5, and the through hole 4 is lowered.
When a overlaps with the horizontal hole 1d of the vertical partition 1a of the support base 1, the air in the air chamber 15 flows into the upper and lower parts of the ■-shaped reed plate 7? a.

The lead hole 8a of 7b enters the upper and lower flute chambers 10a and 10b from sb extremely rapidly, and further passes through the upper and lower through holes 11 of the vertical piece 6a of the partitioning member 6, respectively, and exits into the right air passage 1c of the support 1. The air quickly passes through the horizontal hole 1d of the vertical partition 1a and the through hole 4a of the on-off valve 4, and is discharged into the long trumpet-shaped air passage 1b on the left side of the support base 1.

At that time, the upper and lower portions 9a of the lead plate 7.

9b are strongly vibrated together and emit the required musical tone,
The vibrating air as the musical sound is the upper and lower flute chambers 10a and 10b.
Since the air is merged in the air passages 1c and 1b in the base 1 without leaking to the outside, their energies are added to each other, increasing the volume and making the tone dynamic.

As described above, according to this invention, a horizontal block-shaped partitioning material is attached to one side of a support having air passages open outward on both sides of a vertical partition fitted with a required number of on-off valves, and the partitioning material is attached to the partitioning material. A 7-shaped reed plate is provided so as to straddle the horizontal piece to form a flute chamber divided into upper and lower parts, and the upper and lower flute chambers are communicated with the air passage in the support base. The required number of reed holes and reeds are provided, and an air chamber is formed on the outside of the reed, so the instrument itself becomes a multitone type, which increases the volume of musical tones and makes the tone beautiful and gorgeous, increasing its value in use. , it can be made compact without complicating the configuration or increasing its size.
Furthermore, the lead can be easily adjusted by removing the cover as shown in FIG. 4.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention, and FIG. 1 is a perspective view of a part of the external appearance. FIG. 2 is a sectional view taken along line XX in FIG. 1. FIG. 3 is a perspective view of the on-off valve. FIG. 4 is a partial perspective view with the cover removed and the lead plate exposed. In the figure, 1 is the abutment, 1a is the vertical partition, 1b is the left air passage,
1c is a right side air passage, 1d is a horizontal hole, 2 is a keyboard stand, 3 is a valve insertion hole, 4 is an opening/closing valve, 5 is a coil spring, 6 is a partitioning material, 6a is its vertical piece, 6b is a horizontal piece, 7 is ■Character shaped lead plate? a, 7b are the upper and lower pieces, 8a, 8
b is a lead hole, 9a, 9b is a lead, 10a, 1
0b is a whistle chamber, 11 is a through hole, 14 is a cover, and 15 is an air chamber.

Claims (1)

[Scope of Claim for Utility Model Registration] A partition member 6 in the shape of a horizontal block is provided on one side of the base 1, which has air passages 1b and lc open outward on both sides of a vertical partition 1a that encloses the required number of on-off valves 4. Attachment: A square-shaped reed plate 7 is provided on the partitioning member 6 so as to straddle the horizontal piece 6b, forming upper and lower divided whistle chambers 10a and 10b.
The upper and lower flute chambers 10a and 10b are connected to the air passage 1b in the support 1. 1c, and the upper and lower pieces 7a of the lead plate 1
, 7b have the required number of upper and lower pieces 7a, 7 of the lead plate 7.
b has the required number of lead holes 8a, ab and lead 9a,
This double-tone keyboard wind instrument is provided with an air chamber 15 outside the sb.