JPS63289591A - Mouthpiece for electronic wind instrument - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to an improved mouthpiece for an electronic wind instrument, and more specifically, an improvement in a mouthpiece for an electronic wind instrument that electronically generates musical tones by operating a predetermined key while exhaling. in between.

(Prior Art) As a conventional mouthpiece for an electronic wind instrument, one shown in FIG. 3, for example, has been known.

In this figure, 1 is the main body of the mouthpiece, and the base end of the main body 1 is formed integrally with the main body of the electronic wind instrument (tubular body), and the body 1 is a tubular body with a pointed tip. It is configured. A base end portion of a lead 3 made of a thin plate is fixed to the lower end of the main body 1 at its tip.

Further, a cantilever 5 is attached inside the main body 1 so as to be able to swing freely using the middle portion of the cantilever 5 in the longitudinal direction as a fulcrum. A pin 7, which is a fulcrum of the cantilever 5, is fixed to the main body 1, and the bottle 7 is enclosed in a sealing material 9 made of silicone resin.

This sealing material 9 is filled in the boss portion of the main body 1 to a predetermined thickness, and divides the interior of the main body 1 into a space portion 11 on the front end side and a space portion 13 on the rear end side. Therefore, one longitudinal end of the cantilever 5 is disposed within the space 11 on the tip side, and contacts the tip of the lead 3 from inside.

The other end of the cantilever 5 in the longitudinal direction is disposed in the space 13 of this rear end example, and the other end has a magnet 15 extending downward.
is fixed.

17 is a Hall element fixed and arranged in the space 13 in opposition to the magnet 15. The cantilever 5, the magnet 15, and the Hall element 17 collectively constitute a bend sensor that detects a bend playing style.

Furthermore, a tube 19 is fixed to this resin sealing material 9, and this tube 19 is connected to the inside and outside of the sealing material 9 (the spaces 11 on both sides).
13). A pressure guiding pipe (not shown) is fitted inside this pipe 19. Further, inside 13 of the main body 1, a breath pressure sensor is disposed to detect the player's breath pressure using the pressure guide tube.

In this way, the mouthpiece of the electronic wind instrument has a structure that prevents moisture from entering the interior 13 by the sealing material 9. Furthermore, the pitch bend playing style was detected by detecting that the magnet 15 approached the Hall element 17 due to the swinging of the cantilever 5.

(Problems to be Solved by the Invention) However, in the mouthpieces of such conventional electronic wind instruments, the cantilever constituting the pitch bend sensor is swingably supported by silicone resin on the mouthpiece body. After years of use, the silicone resin deteriorates and cracks are likely to occur, in which case there is a risk that moisture may enter the internal space in which the sensor body is installed. In addition, the silicone resin tends to peel off from the cantilever, which is a movable member, and moisture travels through this peeled part due to capillary action and enters the sensor installation space, causing a problem. Furthermore, filling a predetermined portion inside the main body with silicone resin requires fixing and holding the cantilever using a jig or the like, and it is also necessary to leave the cantilever alone for a predetermined period of time after filling. The drawback was that the workability was extremely poor.

(Means for Solving the Problems) Therefore, the present invention provides a tubular mouthpiece body that is attached to the tip of an electronic wind instrument body, and a switch lever of a pendo sensor that is swingably provided inside the mouthpiece body. In the mouthpiece for an electronic wind instrument, the inner periphery is fixed to the switch lever, and the entire outer periphery is fixed to the inner surface of the mouthpiece body, so that the inside of the mouthpiece body can be controlled in the longitudinal direction of the switch lever. The above problem is solved by having an elastic seal member that partitions the front end space where one end is disposed and the rear end space where the other longitudinal end of the switch lever is disposed in a liquid-tight manner. That is its purpose.

(Operations and Effects) In the mouthpiece of the electronic wind instrument according to the present invention, when the switch lever swings, the pendo sensor detects a bend playing style based on the displacement of the switch lever caused by this swing.

During performance, even if moisture gets inside the mouthpiece body (the space on the tip side), this moisture is sealed away by the elastic sealing member, and the other end of the switch lever is sealed! It does not invade the rear end side space provided.

In this case, the elastic seal member switches due to its own elastic force, and the degree of deterioration caused by the swinging of the switch bar is extremely small, and cracking of the member and peeling of the joint with the switch lever are unlikely to occur. As a result, intrusion of moisture into the rear end side space is prevented, failure of the sensor, etc. is prevented, and its durability is improved.

Furthermore, since the inner circumferential edge of the elastic seal member is fixed to the switch lever and the outer circumferential edge thereof is fixed to the inner surface of the mouthpiece body, it is extremely easy to attach the elastic seal member.

Furthermore, since the mouthpiece 31 with the reel 37 can be easily replaced by the user, it is also hygienic (effective as a countermeasure against AIDS).

(Example) Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show an embodiment of a mouthpiece for an electronic wind instrument according to the present invention.

In these figures, 21 is the main body of an electronic wind instrument (for example, a recorder), which is a hollow tube made of ABS resin, for example, and inside the opening at the tip of this main body 21, as shown in detail in FIG. Base end portion 31A of tubular mouthpiece body 31
is inserted.

That is, a boss 23 is formed at the tip opening of the main body 21, and a base end 31A (approximately the same diameter as the boss 23) of the mouthpiece main body 31 is attached to the boss 23 with two O-rings 33.
．． 35 is interposed between the two contact surfaces and is fitted and fixed.

The mouthpiece main body 31 is formed into a tubular shape as a whole, but the tip thereof is formed into a pointed shape. The base end of the reet 37 forming the distal end is fixed to the boss-shaped portion, which is the base end 31A of the mouthpiece main body 31, with a screw 39. Therefore, this thin plate-shaped glue 37 is constructed so that its distal end can be bent using the screwed base end (39) as a fulcrum.

Further, the base end portion 31A of the mouthpiece body 31 is formed into a cylindrical shape, and a bottomed cylindrical core 41 is inserted into the cylindrical portion 31A.

A cantilever 43 is provided at the bottom of one end of the core 41 so as to be swingable about a pin 45 in a plane including its longitudinal axis. That is, cantilever 4
3 is supported by the core 41 so as to be swingable within the vertical plane shown in the figure, centering on the pin 45 (with the longitudinal intermediate portion as the fulcrum).

One end 43A of this cantilever 43 in the longitudinal direction
is arranged inside and in contact with the tip of the lead 37. Further, the other end 43B of the cantilever 43 in the longitudinal direction protrudes to the right side in the figure from the core 41, and the main body 2
It is located inside 1. Further, a magnet 47 is fixed downwardly to the other end in the longitudinal direction, and a Hall element 49 is fixed in the internal space between the magnets 47.

51 is a printed circuit board that holds this Hall element 49.

This cantilever 43, a pair of magnets 47, and the Hall element 4
9 constitutes a vent sensor 61 that detects pitch vent information as a whole. Therefore, the cantilever 43 constitutes a switch lever of the seat sensor 61.

Here, between the core 41 and the base end 31A of the mouthpiece main body 31, there is a garbage boot (elastic sealing member) 53.
The 0 base end portion (outer peripheral end portion) 53A is held. A cylindrical tip portion (inner peripheral edge portion) 53B of the recessed boot δ3 is fixed to one end side of the fulcrum 45 of the cantilever 43. Therefore, the internal space of the mouthpiece body 31 is reduced to the tip side space 55 by the garbage boot 53 having a predetermined elastic force.
The rear end side space 57 is divided into two parts in a liquid-tight manner. Inside this tip side space 55, there is a cantilever 4.
One longitudinal end (front end) 43A of the cantilever 43 is disposed inside the rear end space 57, and the other longitudinal end (rear end) 43B of the cantilever 43 is disposed inside the rear end side space 57, respectively.

As shown in FIG. 1, this garbage boot 53 is formed into a cylindrical shape at the inner circumferential edge 53B) where it is fixed to the cantilever 43, but the lower part is more fixed than the upper part. Since the length to the end is short, the cantilever 43 is always urged downward in the figure. Also, cantilever 43
The biasing in the counterclockwise direction in the figure is determined by the upper surface of the other end 43B of the lever 43 coming into contact with the lower surface of the end protruding from the core 41 of the attachment pipe δ9. Or, Sudo 3
The tip of the cantilever 7 and the cantilever tip 43A are positioned by coming into contact with each other.

Note that the Hall element 4 is located inside this rear end side space 57.
In addition to 9, a design sensor (not shown) is also provided. This design sensor detects the exhalation pressure of the performer and outputs a pressure signal with a value corresponding to this. An attachment tube 59 into which a pressure impulse tube (not shown) for guiding exhaled air to this design sensor is inserted is attached to the core 41 and the boot 53. Or, this mounting pipe δ9 is connected to the core 41
It may be formed as a part of.

FIG. 2 shows a state in which the mouthpiece according to this embodiment is attached to an electronic wind instrument. .

As shown in this figure, the wind instrument main body 21 is formed to a predetermined length, and a plurality of keys 7 for specifying pitch names are provided on the outer circumferential surface of the main body 21.
1, and other switching keys 73, switch levers 75, etc. are provided. Further, a key detection means for detecting an operated key 71 among these keys 71 and sending a key signal to the musical tone generating device is housed inside the wind instrument main body 21 similarly to the above-mentioned design sensor. In the same figure, 81 indicates a power supply, and 83 indicates a connection cable between the wind instrument main body 21 and the electric R81.
It sends a DI signal. In addition, 85 is a power supply 81
This shows a cable for sending MIDII messages from the device to the device that is the sound source.

In the mouthpiece of the electronic wind instrument according to the above configuration, the design sensor detects the player's breath pressure, and
The operated key 71 is detected and a musical tone having a predetermined pitch, volume, and timbre is produced by a musical tone generating device. In this case, when the leet 37 is bitten, the cantilever 43 swings and the Hall element 49 detects bend information. Then, in response to the bent information, the musical tone generating device generates sounds in accordance with the pitch bend performance.

During this performance, moisture is blown into the mouthpiece main body 31, that is, into the tip side space 55 along with exhaled air. This moisture is sealed by the waste boot 53 and does not enter the rear end space 57. Therefore,
A bend sensor 61 arranged inside the space 57 on the rear end side
The sensor parts (47, 49), design sensors, etc. will not rust or malfunction due to moisture intrusion. In other words, its durability has increased.

Moreover, the garbage boot 53 is attached to the cantilever 43 due to its elastic force.
Since the one end 43A of the reed 37 is always pushed downward in the figure, as soon as the player (h) stops chewing on the reed 37 during the performance, it returns to the paddy amount state (FIG. 1). Vibrato by pitch bend is also possible from this point.

Furthermore, this rubber boot δ3 responds to the swinging of the force armature lever 43 due to its elastic force, and as a result, the cantilever arm 4
There is no possibility of water leakage due to the adhesive part 53B to the boot 53 peeling off or the boot 53 itself deteriorating.

In addition, to attach the rubber boot 53 to the mouthpiece body 31, cover the outer peripheral edge 53A of the garbage boot 53 over the core 41, and then attach the core 41 to the boss-shaped portion 31A of the mouthpiece body 31.
The waste boot 53 is sandwiched and fixed between the core 41 and the main body 31 by simply fitting it in, and the installation work is extremely simple. Furthermore, the attachment of the mouthpiece itself to the wind instrument main body 21 is also performed using the boss portions (23, 31A).
It is very easy to fit them together, and since an O-ring (33.35) is fitted between the two surfaces, the seal between them is completely achieved. Furthermore, since the mouthpiece 31 with reed 37 can be replaced by the user, it is also hygienic (effective in preventing infectious diseases such as AIDS).

In addition to these sensors, a tonguing sensor made of a photocoupler, for example, may be attached inside the mouthpiece body 31.

[Brief explanation of drawings]

Fig. 1 is a vertical sectional view showing an embodiment of the mouthpiece of an electronic wind instrument according to the present invention, Fig. 2 is an overall configuration diagram showing an electronic wind instrument according to an embodiment, and Fig. 3 is a conventional one. FIG. 2 is a longitudinal sectional view showing a mouthpiece of an electronic wind instrument. 21...Body of wind instrument, 31...
...Mouthpiece body, 43...Cantilever (switch lever), to 43□...One end of cantilever, 43B
・・・・・・Cantilever pond edge, 53・・・・・・
・・・・Gomu boots (elastic sealing member), δ3A・・・・・・・Outer periphery of garbage boots, 53B
・・・・・・Inner peripheral edge of garbage boots, 00・・・・
...Tip side space, 57...Rear end side space, 61...Pend sensor. Patent applicant Nippon Musical Instruments Co., Ltd. Agent Patent attorney (8917) Kiyoshi Kuwai No. 3rA Cross-sectional view of conventional #1

Claims (2)

[Claims] (1) In a mouthpiece for an electronic wind instrument that includes a tubular mouthpiece body that is attached to the tip of the electronic wind instrument body, and a switch lever for a bend sensor that is swingably provided inside the mouthpiece body, the above switch is provided. By fixing the inner peripheral edge to the lever and the outer peripheral edge to the inner surface of the mouthpiece body, the inside of the mouthpiece body is divided into a tip side space where one longitudinal end of the switch lever is disposed, and a switch lever. 1. A mouthpiece for an electronic wind instrument, comprising an elastic seal member that fluid-tightly separates a rear end space in which the other longitudinal end of a lever is disposed. (2) The mouthpiece for an electronic wind instrument according to claim 1, wherein the elastic seal member biases the switch lever in one direction.