JPH0573031A - Assembling mechanism for connecting part of wind instrument, especially of woodwind instrument - Google Patents

Abstract

PURPOSE: To improve an assembly structure of a connection part of a wind instrument, especially, a woodwind instrument. CONSTITUTION: This device related to, especially, a woodwind instrument is provided between tenons 4 for assembling and mortises 6 and is placed in each terminal part of each part of the instrument. The device is provided with three dogs 31, 32, and 33 for lock provided on the tenon 4 of a part 12 at intervals of 120 deg.. Three dogs 31, 32, and 33 for lock are so devised that they are inserted and turned at the time of insertion type assembling so as to be suitably used complementarily to three dogs 24, 25, and 26 provided in the mortise 6 of another part 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for assembling two connecting parts of a wind instrument, particularly a woodwind instrument.

[0002]

2. Description of the Prior Art Conventionally, such assembly is done via the other tenon, which is adapted to fit in the tenon of one of the two parts. The tenon is covered with a thin cork sheet to ensure a smooth sealing fit. There are many inconveniences associated with installing a cork sheet on the tenon. That is, this mounting is performed by adhering a cork sheet having a predetermined length and a small width around the tenon. And this sheet must be tightly held by wrapping the string until the adhesive hardens, but since such adhesion requires skill and meticulousness, skilled manpower is required and therefore costly. ..

Further, it has been confirmed that when a musical instrument is heavily used, the cork is worn out relatively quickly, resulting in a gap in the assembly portion. If this happens, it will be difficult to handle the musical instrument and the musical characteristics will change. In addition, the key may be twisted, making it difficult to operate, or in some cases, not working. However, in addition to the above, there is a serious disadvantage derived from the height of the tenon. That is, the tenon height without simultaneously reducing the supporting surface of the cork,
Therefore, there is the disadvantage that it cannot be reduced without compromising the good resistance of the cork on the tenon. Also for this same reason, the position of the first key hole immediately after the junction of the two parts of the instrument will necessarily be at a minimum distance at least equal to the tenon height. In practice, this height is about 18 mm for a clarinet, for example.
Is.

In all cases of wind instruments, especially woodwind instruments, in order to locate this hole at the acoustically best place called the vibration node,
Research has often been done on the location of this hole.
As part of this, it is known that these tonal holes are manually drilled and finely grooved to improve the response and accuracy of pitch changes. It is very difficult to make, and the need for improvement to make it easier to use with fingers is strongly felt,
In fact, improvements have been attempted.

With respect to oboe, various improvements have been made, so it is no longer necessary to be afraid of sharp and flat tones, but nonetheless, oboe sounds are easier to produce than flute sounds. Absent. Besides, some sounds in the low range from strange to two tones are very difficult. The oboe is easier to play from the E sound, but it sounds much more piercing than other woodwind instruments when played with pianissimo. In some cases, oboe never gets pianissimo comparable to that of flute or clarinet. Regarding the sound quality of the oboe, the homogeneity of its tone is certainly excellent, but it is difficult to obtain the accuracy and richness of the pitch in the high range.
However, this is not the case in the low range.

As for the clarinet, the clarinet is much lighter than the oboe and can produce most of the nuances from pianissimo to fortissimo. Regarding the strange B-shaped clarinet,
Speaking of the most commonly used clarinet, some notes above the E sound have a muffled, less pronounced sound than others, often referred to as the instrument's offensive range. There is a sound. The clarinet has excellent musical properties, but the hole and key system is a complex system suitable for playing any chromatic scale in the fundamental.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to remedy the various disadvantages mentioned above and to provide greater freedom in the choice of keyhole positioning which plays a decisive role in the accuracy and tone of an instrument. is there.

[0008]

To that end, the invention relates to a device for the assembly of two connecting parts of a wind instrument, in particular a woodwind instrument. That is, it relates to a device provided between the tenon of one part and the tenon of the other part and located at the end of each part of the musical instrument. It relates to a device characterized by having a first locking dog arranged. The first locking dog is designed to be used complementarily with the second dog radially arranged on the inner circumference of the mortise of the other part. And, behind this second dog, by rotating one of the two articulating parts of the instrument relative to the other, as in a plug-in type assembly after the tenon is axially inserted into the tenon. It was designed to lock onto.

According to this method, the height of the mortise, and thus the height of the mortise, can be significantly reduced, as is readily apparent. Because it no longer depends on the mechanical properties of cork resistance. That is, it is not necessary to use cork at all. For example, in the clarinet, if we consider the strength and accuracy of the joint-that is, the tenon and the tenon,
It has been found that the joint height can be reduced to about 10 mm (conventional joint height is about 18 mm). Therefore, an additional 8 mm of additional freedom is gained in pursuing the ideal placement of the holes in the instrument.

In addition to this main advantage, one of the secondary effects of this height reduction is the saving of material used. In fact, the body of these instruments is made from carefully selected wood such as African ebony and rosewood. All these woods are very expensive as they are selected according to their acoustic and aesthetic qualities. Therefore, such savings in material will naturally have a positive impact on the cost of the instrument.

[0011]

Further features of the invention will be clearly understood from the detailed description given below by way of example with reference to the accompanying drawings. Illustratively, the clarinet represented is constructed in a known manner by a body tube 1 consisting of a lower tube 2 and an upper tube 3. These parts 2 and 3, as well as the other parts, are suitable to be connected via an assembly means consisting of a tenon 4 which is covered by a cork sheet 5 in a known manner. The tenon 4 is fitted into a mortise hole, generally indicated by the reference numeral 6. The body tube 1 is constructed by a general method with a hollow cylinder made of wood carefully selected from the viewpoint of sound quality, stability, and robustness. However, for a model with a simpler design, for example, the body tube 1 may be made of resin. In the parts 2 and 3 of the body tube 1, there are arranged an upper range and a lower range consisting of a key 7, a tuning hole 8 and a connecting rod 9 connecting the keys. The clarinet typically has 24 holes. Seven of them are covered with fingers and the others are covered with keys.

The lower part of the instrument ends in a wide-mouthed morning glory 10 assembled using the same assembly means as previously described. The upper part of the instrument is equipped with a single reed and ends in a mouthpiece 11 which is arranged on the upper tube 3 of the body tube 1 via a barrel 12. These members constituting the musical instrument are also connected to each other by a known method by the same assembling means described above. Illustratively, the assembly device which is the subject of the present invention exhibits its particular advantage when it is carried out between the upper tube 3 of the clarinet body tube 1 and the barrel 12.

Comparative Figures 7 and 8 roughly show an instrument assembled using the gimmick according to the invention and the upper tube of an instrument assembled in a conventional manner. For the sake of clarity, the reference numeral A is added to the reference portion for indicating the equivalent portion of the conventional musical instrument to be assembled. Comparative Figures 7 and 8 show barrel 12 or 12A
13 or 13A, one of the tonal holes closest to
(Known) (FIGS. 1 and 2) can be closed by a key 14 operated by an end 15 of a lever 16. As shown in FIG. 8, the horizontal center line XX ′ passing through the hole 13A is changed from the plane PP ′ corresponding to the joint surface of the barrel 12A to the barrel 1
It is located at a position equal to the height "L" of the mortise 4A of 2A plus the minimum distance "d" from the bottom of the mortise 6A to the lateral center line XX '.

An object of the invention is to bring the hole 13 closer to the joint surface PP 'while keeping the same distance "d" from the bottom of the mortise 6 to the lateral center line YY'. Therefore, the depth of the mortise corresponding to the distance "l" equal to the length of the corresponding mortise 4 becomes smaller. In fact, using the means of the invention described below, the height "L", which is 18 mm in the past, is 10 mm.
Can be easily reduced. Therefore, the material is 8 mm
You can save only that amount. This is a considerable savings.

In an actual embodiment, the clarinet comprises a barrel 12 and an upper pipe 3, a upper pipe 3 and a lower pipe 2, and a lower pipe 2.
It is assembled by three devices, that is, an upper device 17, a middle device 18, and a lower device 19, which are respectively located between the morning glory 10 and the morning glory 10. Each assembly is done via two metal sleeves. The metal sleeve is preferably stainless steel. One of two metal sleeves 20
Are inserted and integrated into the mortise 6 by the male part 21. The insertion of the male part 21 is made until the brim 22 is pressed firmly onto the annular edge of the upper tube of the instrument. In addition, this insertion is performed by the three locking dogs 24, 25 arranged in the radial direction on the inner hole of the sleeve 21 described above.
26 according to a predetermined angular position. The locking dogs 24, 25, 26 are spaced 120 ° apart, but the lengths of the dogs may be different, or two may be the same length and the other one may be longer than that. Lengthen.

The second sleeve 28 is inserted by the female portion 29 onto the tenon 4 of the barrel 12 and integrated. The insertion of the female part 29 is made until it hits the annular edge 30 of the barrel 12. Also, this insertion is done according to a predetermined angular position according to the three complementary dogs 31, 32, 33 which are also arranged radially on the outer circumference 34 of the aforementioned sleeve 28. Dog 3 of sleeve 28
1, 32 and 33 are also arranged at 120 ° intervals, but when inserting the tenon 4A with the sleeve 28 into the tenon 6 with the sleeve 20, the dogs 24, 2
Dogs 2 to allow dogs 31, 32, 33 to pass between the spaces defined between each other by 5, 26
It is arranged so as to be offset from 4, 25, and 26. After inserting the tenon 4A into the mortise hole 6, rotate the dogs 31, 32, 33 by an arbitrary angle according to the alignment to obtain the assembled part, as in the case of the insertion type assembly. Lock behind 24, 25, 26.

According to one feature of the invention, for example, the dogs 31, 32, 33 of the sleeve 28 as well as the dogs 24, 25, 26 of the sleeve 21 are shown to be part 3 after rotation by a predetermined angle.
And a helical inclined portion suitable for ensuring mutual axial tightening. According to another feature of the invention,
One of the locking dogs (e.g. 25) of the sleeve 21 has a larger size than the other and the other sleeve 28
Fits snugly into the corresponding space between two adjacent dogs when assembled. This serves as a mis-assembly prevention mechanism suitable for ensuring good alignment between the musical instrument parts 3 and 12 during assembly. According to another feature of the invention, the sleeves 20 and 28 are glued or pressed into the mortise 6, and
Each is attached on the tenon 4. Of course, the dogs 24, 25, 26 and 3 can be used without departing from the scope of the invention.
1, 32 and 33 can also be obtained by directly processing the mortise 6 and the mortise 4.

[0018]

As described above, according to the mechanism of the present invention, it is possible to give a great degree of freedom to the positioning selection of the accuracy and the timbre of the musical instrument, and the effect after the present invention is extremely large. Is.

[Brief description of drawings]

FIG. 1 is an overall view of a clarinet having a device according to the invention in a separated state. FIG. 2 is a perspective view of an end portion of a clarinet having an assembly mechanism according to the invention during assembly. FIG. 3 is an exploded view of the two ends and the device according to the invention. FIG. 4 is a larger scale view of the assembly device according to the invention. FIG. 5 and FIG. 6 are cross-sectional views of an end portion of two parts of an assembled musical instrument having an assembly mechanism according to the invention before and after assembly. 7 and 8 roughly show two parts of the musical instrument according to the invention and the conventional musical instrument, respectively.

[Explanation of symbols]

 1 Wind instrument 4 Mortice 6 Mortise hole 31, 32, 33 First locking dog 24, 25, 26 Second locking dog

Claims (6)

[Claims] 1. Mortise (4) on the one hand and mortise (6) on the other hand
A wind instrument (1), especially a woodwind instrument
An assembly device located at the end of one connecting part, which is arranged radially on the outer circumference of the tenon (4) of the part (12) and inside the mortise (6A) of the other part (3A) Second dogs (24, 25,
26) and is equipped with a first locking dog (31, 32, 33) suitable for complementary use. The first dog (31, 32, 33) is one of the parts (12) of the musical instrument (12) as in the plug-in type assembly after axial insertion of the tenon (4) into the mortise (6). ) Is locked behind the second dog (24, 25, 26) by rotating (3) with respect to the other part (3), the assembly mechanism of the connecting part of a wind instrument, in particular a woodwind instrument. 2. Dogs (31, 32, 33) on the tenon (4)
One of them and the other dog (24,2) in the mortise (6)
5, 26) and / or at least one of its supporting surfaces is characterized by constituting a helical ramp suitable for ensuring axial mutual clamping of the parts (12, 3) after a given rotation. An assembly mechanism for a connecting portion of a wind instrument according to claim 1, particularly a woodwind instrument. 3. A tenon (4) of one of the parts (12) of the instrument is provided with three locking dogs (31, 32, 33) spaced 120 ° apart, and , These dogs have mortises (6) in the other part (3)
It is suitable to be used complementarily with the three dogs (24, 25, 26) of the mortise (3), and the three dogs (24, 25, 26) of the mortise (6) have three mortises (4). Dog (3
1, 32, 33) to define a space whose size approximately corresponds to
Between these spaces are three dogs (31, 3) on the tenon (4).
2. An assembly mechanism for a connecting part of a wind instrument, in particular a woodwind instrument, according to claim 1, characterized by being able to pass through. 4. One of the locking dogs (31, 32, 33) has a different size from the other, so that the part (12) of the musical instrument and the other part (3) are better during assembly. 4. An assembly mechanism for a connecting portion of a wind instrument, in particular a woodwind instrument, according to claim 3, characterized in that an erroneous assembly preventing mechanism suitable for ensuring proper alignment is obtained. 5. A pluggable locking dog (24, 25, 26) on one or the other of the parts (3, 12) to be assembled.
-31, 32, 33) are provided, on the one hand, in the inner bore (27) of the first sleeve (20) which is malely inserted into the mortise (6) of one of the instrument parts (3) On the other hand, it is also characterized in that it is provided on the outer circumference of a second sleeve (28) which is femalely inserted onto the tenon (4) of the other part (12) of the aforementioned instrument. 4. A mechanism for assembling a connecting portion of a wind instrument according to any one of claims 1 to 4, particularly a woodwind instrument. 6. The insert sleeve (21, 28) is coaxial and is glued into the mortise (6) and
Assembly mechanism for the connecting part of a wind instrument, in particular a woodwind instrument, characterized in that they are each fixed on the tenon (4).