EP2283479B1 - Tunable clarinet barrel - Google Patents

Description

Technical area

The invention relates to a tunable clarinet bulb for arrangement between a mouthpiece and a top of a clarinet, the clarinet bulb divided into an upper part and a lower part and for connecting these two parts a collar is provided by means of which the axial distance between the upper part and lower part is variable.

State of the art

The clarinet belongs to the family of woodwind instruments. It usually consists of five parts that can be put together: the mouthpiece, the clarinet pear, the top piece, the bottom piece and the funnel. The mating of these five parts usually takes place by means of cork-covered pins and corresponding receptacles for these pins, which have the individual parts at the respective connection points. If all five parts of the clarinet are inserted into each other so that no gaps remain between the individual parts, the passage opening extends inside the clarinet continuously and with a substantially constant inner diameter of the mouthpiece on the clarinet bulb, the upper and the lower piece to the Funnel.

Since the clarinet is used in the Musiklifieratur both soloistically as well as in different chamber music and orchestral settings, it is necessary in particular in the common music making of several musicians to tune the instruments to each other. The height of a given sound depends both on instrument-specific factors and on variable environmental influences, in particular on the ambient temperature, which has a direct effect on the temperature of the instrument. For all woodwind instruments, that the pitch of a given note also increases with increasing instrument temperature.

In the interplay of several musicians, the instruments are therefore usually initially coordinated with each other at the beginning. However, as the wind instruments heat up as the player's warm air flows through, increasing instrument tuning, it is often necessary to tune the instruments as the interaction progresses. Also many works require a change between e.g. A and B clarinet, with the result that the currently unused clarinet cools again and this also a Nachstimmung required.

For all wind instruments, it is true that they sound the lower, the longer the air column oscillating in the instrument. An extension of the oscillating air column is usually caused by slight extraction of one or more instrument parts. For clarinet, for example, to create a slightly lower mood, the clarinet pear is usually extended a little further from the top or mouthpiece.

However, this extraction causes the mentioned continuous through-opening at the connection between, for example, the clarinet bulb and the upper piece is widened on a length corresponding to the extract. This creates a cavity on the inside and a gap on the outside, which negatively influences the sound properties and the intonation of the instrument, but in which undesirable condensation also builds up, which affects the playability of the instrument. As soon as the clarinet bulb pulls out of, for example, the top piece, there is only one connection between these parts of the clarinet via the sound-absorbing cork, which affects the instrument sound.

It is for example from the US 1,416,898 known to provide for bridging the cavity a metal sleeve which can be telescopically inserted into the passage opening of the clarinet and moved out of this. Due to the complicated support of such a sleeve as well as the influence of the instrument sound through the inserted piece of metal, such a mechanism in clarinet construction, however, could not prevail so far.

It is also known to build the clarinet pear in two parts from wood, consisting of a top and a bottom, and to form such a sleeve in one piece with a part of the clarinet pear. Such formed in one piece with a part of the clarinet bulb sleeve is for example in the US 5,249,499 disclosed. The clarinet bulb described here consists of an upper and a lower part, wherein for connecting the upper and the lower part arranged between these two parts adjusting ring is provided. The upper part is screwed into the adjusting ring, while the lower part is rotatably mounted on the adjusting ring. By turning the adjusting ring, the axial distance between upper and lower part is variable.

A disadvantage of this system is that the upper and lower parts of the clarinet bulb can basically rotate against each other by turning the adjusting ring. Although the rotatable mounting of the lower part relative to the adjusting ring to avoid moving the lower part upon actuation of the adjusting ring. However, in order to achieve this, the lower part may oppose as far as possible no resistance to the adjusting ring during a rotation thereof. However, this means that the lower part of the Klarinettenbime is extremely easy to rotate in the normal game operation relative to the collar and the top of the clarinet bulb, which is highly undesirable.

From the US 2,098,457 is a tunable clarinet pear for placement between a mouthpiece and a top of a clarinet known, with a running in the direction of its longitudinal axis passage opening, which is formed essentially of a top and a lower part, which are joined together along the longitudinal axis, wherein a connecting the upper part and the lower part and this largely superior cuff is provided by means of the axial Distance between the upper part and lower part is changeable. The cuff is connected to the upper part and the lower part or with its telescopic extension parts each via a screw thread. The screw threads have an opposite direction of rotation.

The disadvantage of in the US 2,098,457 The clarinet bulb shown in the drawing shows that when the upper part and lower part are pushed apart, a gap is created between the wooden cuff and the sections (mouthpiece and pin at the end of the instrument body.) A further gap and cavity formation also occurs in the region between the cuff, the upper part and the connecting sleeve on the On the one side and between the sleeve, the lower part and the connecting sleeve on the other side, this cleavage has a negative effect on the sound characteristics of the clarinet bulb and the outer wood body (sleeve) has a natural vibration which also has a negative effect on the sound characteristics of the bulb The inner metal sleeves of the threads also have a natural oscillation and these two units are in opposition to each other in terms of vibration and thus hinder each other.

Presentation of the invention

Object of the present invention is therefore to propose a tunable clarinet bulb, which eliminates the disadvantages mentioned and which can be tuned in a simple manner, without the upper and lower parts of the clarinet bulb rotate against each other.

This object is achieved by a tunable clarinet bulb having the features of claim 1. Advantageous developments are the subject of the dependent claims.

The tunable clarinet bulb according to the invention comprises a passage opening extending in the direction of the longitudinal axis thereof and is subdivided into an upper part and a lower part, which can be joined together along the longitudinal axis, and an adjusting ring connecting the upper part and the lower part, by means of which the axial distance between upper part and lower part can be changed is. The invention provides that the adjusting ring is connected to the upper part and the lower part in each case via a screw thread and the screw thread having an opposite direction of rotation.

By using a screw thread for connecting the adjusting ring with the upper part and with the lower part, wherein one of the screw is a left and a right-hand thread, it is achieved that the axial distance between the upper part and lower part is variable by turning the adjusting ring, however without the upper and lower parts to invert their original orientation to each other. In particular, the player is thereby able to move his instrument while playing, i. without settling the instrument to vote, because the collar can be easily operated with one hand and readjustment of the orientation of the upper part to lower part is not required because they do not rotate against each other. Rather, the upper and lower parts linearly move apart or together in the direction of the longitudinal axis.

In addition to the function of the distortion-free apart and Zusammenfahren of upper part and lower part of the collar also provides a significantly improved sound and sound quality over a one-piece clarinet bulb according to the prior art. As a result of the use of the clarinet bulb according to the invention, both in the inner area along the passage opening and in the outer area of the clarinet, a gap formation is avoided, the vibration transmission can be done without attenuation both in the interior of the instrument and on the outer skin of the clarinet bulb.

In one embodiment of the invention, an anti-rotation device is provided between the upper part and the lower part, by means of which the maintenance of the alignment between upper part and lower part is ensured. For example, at least one extending between the upper part and lower part guide pin is provided as rotation, which determines the alignment of the upper and lower parts to each other.

To avoid the above-mentioned problem of gap formation when moving apart of the upper part and the lower part comprises a part, preferably the upper part in one embodiment of the invention, a protruding, thin-walled connection sleeve for insertion into the lower part. The inner diameter of this connection sleeve is substantially equal to the inner diameter of the passage opening of the Klarinettenbirhe, so that even when the driven apart Klarinettenbirne a through hole is maintained with a substantially constant inner diameter. The connecting sleeve may be formed separately or integrally with the part.

The lower part is preferably made of wood. According to one embodiment of the invention, the thus made of wood lower part of the clarinet bulb according to the invention and the upper part of the clarinet can be integrally formed. As a result, a spigot connection between the lower part and the upper part of the clarinet is saved.

In a further embodiment of the invention, the upper part and / or the lower part including the optionally provided connection sleeve made of rubber or of a plastic material. The plastic is, for example, polyoxymethylene (POM), but other plastics can also be provided.

Advantageously, the upper part and / or the lower part are equipped with a part of the screw thread forming threaded ring. This may be, for example, a metal or a plastic ring, whereby the production is simplified. This threaded ring can be attached to the upper and lower part by e.g. Screwing and / or gluing be attached.

The screw thread on the upper part and lower part preferably each have a pitch between 0.8 mm and 1.2 mm, particularly preferably in each case a pitch of 1 mm. This ensures that the tuning of the instrument can be very precise.

Markings for scaling are preferably applied to the adjusting ring, which make it possible to make adjustments reproducible. This is particularly advantageous if it is already known that in interaction with other instruments, the own instrument always sounds too high or too low by one or more oscillations (Hertz).

In one embodiment of the invention, the transition from a mark to an adjacent mark on the adjusting ring corresponds to an axial distance change of 0.2 mm to 0.8 mm, preferably 0.5 mm, between the upper part and the lower part.

In another embodiment of the invention, the transition from a mark to an adjacent mark on the adjusting ring preferably corresponds to a pitch change of 0.5 Hz to 1.5 Hz, more preferably 1 Hz.

It should be understood that the invention is applicable to all members of the clarinet family, ie, Es, D, C, A, B clarinets, bassett clarinets. For basset horns, and bass clarinets, the invention should be integrated into the S - bows by appropriate dimensional adjustments. The S - bows can preferably be made of wood and / or partially or completely made of plastic (eg POM). The invention also relates to other woodwind instruments in terms of structure, design and materials, in particular the threaded unit and the use of plastics (in particular POM). Meant are all flutes, also Piccolo; all oboes, also English hom and Heckelphone; and bassoons, also contrabassoon.

The minimum length of the clarinet bulb according to the invention for use in A- or B-clarinets, which results when the upper and lower parts have maximally moved together, and the extent of the passage opening can be taken into account in accordance with the wishes and needs of each clarinetist in the production. The clarinet bulb according to the invention preferably has a minimum length of between 53 mm and 65 mm, particularly preferably between 54 mm and 58 mm. The inside diameter of the passage opening of the tunable clarinet bulb according to the invention is preferably 14.5 mm to 15.5 mm, particularly preferably 14.9 mm to 15.1 mm, in each case based on A / B clarinets.

Brief description of the drawings

Other objects, features, advantages and applications of the tunable clarinet bulb will become apparent from the following description of an embodiment with reference to the drawings. All described and / or illustrated features, alone or in any combination form the subject matter of the invention, regardless of the summary in individual claims or their dependency.

• Fig.1 eine Schnittansicht einer erfindungsgemäßen Klarinettenbirne in Explosionsdarstellung;
• Fig.2 eine Schnittansicht einer erfindungsgemäßen, vollständig zusammengefahrenen Klarinettenbirne;
• Fig.3 eine Schnittansicht eines weiteren Ausführungsbeispiels einer erfindungsgemäßen Klarinettenbirne in Explosionsdarstellung, bei dem Unterteil und Oberstück der Klarinette einteilig ausgebildet sind;
• Fig.4 eine Sicht von vorne auf den Stellring der erfindungsgemäßen Klarinettenbirne.

In the drawings show

• Fig.1 a sectional view of a clarinet bulb according to the invention in an exploded view;
• Fig.2 a sectional view of a fully collapsed clarinet pear according to the invention;
• Figure 3 a sectional view of another embodiment of a clarinet bulb according to the invention in an exploded view, are formed in one piece in the lower part and upper part of the clarinet;
• Figure 4 a view from the front of the collar of the clarinet bulb according to the invention.

Embodiment of the invention

In the FIGS. 1 and 2 is a total designated by 1 inventive tunable clarinet bulb shown. It consists of an upper part 2 with an insertion opening 20 for a mouthpiece of a clarinet, not shown here, and a lower part 3 with an insertion opening 30 for a likewise not shown upper part of a clarinet. The insertion openings (20, 30) are connected by a passage opening (100) and the upper part 2 and the lower part 3 can be joined together along a longitudinal axis L of the clarinet bulb 1. For secure connection of the upper part 2 with the lower part 3, a provided with two internal threads 5a, 5b collar 4 is provided by means of which the axial distance between the upper part 2 and lower part 3 is variable. The internal threads 5a, 5b extend, in each case along the longitudinal axis L into the adjusting ring.

Both the upper part 2 and the lower part 3 have at their end facing away from the respective insertion 20.30 a threaded ring 60.70 made of metal, which carries an external thread 6.7. The threaded ring 60,70 can be glued or screwed, for example, on a stepped seat on the upper and lower part 2.3. When attached to the upper part 2 external thread 6 is a right-hand thread, while the attached to the lower part 3 external thread 7 is a left-hand thread. Accordingly, the associated internal threads 5a, 5b of the adjusting ring 4 are procured by a complementary to the right external thread 6 thread 5b in the upper part and in the lower part to the left external thread 7 complementary thread 5a has. In this way, the upper part 2 can be screwed by means of the right external thread 6 from above into the adjusting ring 4, while the lower part 3 can be screwed by means of the left-external thread 7 from below into the adjusting ring 4. It is understood that the arrangement of the external threads, i. whose sense of rotation can also be exchanged. Thus, it can be determined in advance whether a right or left turn of the adjusting ring 4 is required to extend the clarinet bulb.

If one goes from the in FIG. 2 shown position, in which the upper part 2 and the lower part 3 are screwed into the adjusting ring 4 maximum, so the upper part 2 and the lower part 3 can be moved from this position out by turning the adjusting ring 4 in a clockwise direction linearly and axially apart, causing the Instrument can be tuned deeper. Accordingly, upper and lower part 2, 3 can be moved together again by turning the adjusting ring 4 counterclockwise in a subsequent step, and the instrument sounds correspondingly higher.

A great advantage of this mechanism is that the adjusting ring 4 can be easily operated without settling the clarinet with one hand. This allows the intonation of the instrument to be adjusted at any time without the need to stop the instrument. Due to the simple handling of the mechanism, it is particularly well suited for amateur use.

How out FIG. 2 can be seen, the threaded and adjusting ring unit, consisting of the adjusting ring 4 and the threaded rings 60 and 70, preferably designed and arranged on the clarinet bulb 1, that it surrounds only the through holes 100 of the upper part 2 and lower part 3. The insertion openings 20, 30 are therefore not included in this embodiment of the threaded and adjusting ring unit 4, 60, 70. In a particularly advantageous embodiment, the threaded and adjusting ring unit 4, 60, 70 between the insertion 20. 20. Essentially (not exactly) arranged centrally.

In FIG. 4 is a view from the front of the adjusting ring 4 shown. The adjusting ring 4 has circumferentially markings in preferably Roman numerals, wherein a transition from a marker to an adjacent marker corresponds to a predetermined change in pitch of the instrument, for example 1 Hz. The markers make it possible to reproduce settings between the upper part and lower part of the clarinet bulb. Further possible markings may be, for example, a millimeter scale or Hertz data.

The combination of a right external thread 6 and a left external thread 7 avoids that when turning the adjusting ring 4, the upper part 2 relative to the lower part 3 is rotated. Rather, the upper and lower parts 2, 3 maintain a fixed alignment with each other and are moved by rotating the adjusting ring 4 only axially toward or away from each other. A guide pin 8, which is received by a recess in the upper part 2 and which extends through the two threaded rings 60, 70 therethrough, also ensures a further rotation.

To avoid a gap when moving apart of the upper part 2 and the lower part 3, the upper part 2 in the region of the through hole 100 integrally formed with the upper part 2 thin-walled connection sleeve 9 whose outer diameter is only so far smaller than the inner diameter of the through hole 100 that the Connection sleeve 9 can be inserted accurately into the through hole 100 in the lower part 3. Of course, an embodiment is also conceivable in which the lower part 3, the connecting sleeve 9, which can then be inserted into the through hole 100 in the upper part 2.

At the in FIG. 2 shown, maximum contracted position of upper part 2 and lower part 3 results in a maximum overlap between the connecting sleeve 9 and the through hole 100 of the lower part 3. If now from this position, the adjusting ring 4 is rotated clockwise, so move upper part 2 and lower part 3 axially apart and the connecting sleeve 9 is telescopically moved out of the through hole 100 of the lower part 3 addition. Due to the then decreasing, but still existing overlap between the connecting sleeve 9 and the passage opening of the lower part 3 thus a gap formation when moving apart of the upper part 2 and lower part 3 is avoided.

In the in the FIGS. 1 and 2 illustrated embodiment of the tunable clarinet bulb 1, the lower part 3 is constructed in accordance with the clarinet itself made of grenadilla wood, while the upper part 2 including the connecting sleeve 9 is made of a suitable plastic, such as POM. Exemplary of a suitable polyoxymethylene is Delrin called DuPont.

The internal thread 5 of the adjusting ring 4 and the external threads 6, 7 on the upper part 2 and on the lower part each have a pitch of e.g. 1 mm up. This corresponds to a full rotation of the adjusting ring 4 a change in length of the clarinet bulb 1 of e.g. 0.5 mm or a pitch of 1 Hz.

In FIG. 3 an embodiment of the clarinet bulb according to the invention is shown, in which the lower part 3 is formed integrally with the upper part of the clarinet. It is omitted in this case, the in the FIGS. 1 and 2 not shown, but required spigot connection between the lower part 3 and the upper part of the clarinet. Incidentally, the structure of the clarinet bulb is identical to that with reference to FIGS Figures 1 and 2 described structure.

The clarinet bulb according to the invention is not limited in its execution to the above-mentioned preferred embodiments. Rather, a variety of design variations are possible, which make use of the solution shown even with fundamentally different type of execution.

List of reference numbers

1

tunable clarinet pear

2

top

3

lower part

4

collar

5a, 5b

Internal thread at 4

6

Right external thread on 2

7

Left external thread on 3

8th

guide pin

9

connecting sleeve

20

Insertion opening at 2

30

Insertion opening at 3

60

Threaded ring on 2

70

Threaded ring on 3

100

Through opening

L

longitudinal axis

Claims (7)

1. The present invention relates to a tunable clarinet barrel (1) for arrangement between a mouth piece and an upper joint of an (Es, D, C, A, B) clarinet, having a longitudinal axis (L) and a through-passage (100) running in the direction of the longitudinal axis (L), the clarinet barrel (1) being composed of a top part (2) and a bottom part (3), which can be joined along the longitudinal axis (L), and an tuning ring (4) connecting the top part (2) and the bottom part (3) being provided, the axial distance between the top part (2) and bottom (3) being variable by means of said tuning ring, characterized in that the tuning ring (4) is connected to the top part (2) and the bottom part (3) each by way of a screw thread (6, 7) and the screw threads (6, 7) have opposite directions of rotation and where the upper part (2) is embodied in the region of the through passage (100) with a protruding connection tube (9) for the insertion of the bottom part (3), whereby the upper part (2) and the bottom part (3) are each fitted with a partial screw thread (6, 7) forming thread rings (60, 70) sealing the cavity created between the upper part (2) and the bottom part (3) below the tuning ring (4) on both sides,
   characterized in that
   a thread ring (60, 70) is form fitted in the groove in the circumference of the upper part (2) and bottom part (3) each, so that on the inside surface of the through passage (100) and on the outside of the clarinet the formation of a gap is prevented.
2. A tunable clarinet barrel (1) according to claim 1,
   characterized in that
   the screw rings (60, 70) or the screw threads (6, 7) protrude beyond the top part (2) and the bottom part (3) so that the tuning ring (4) is located exclusively at the screw threads (6, 7) and not on the body of the top part (2) and the bottom part (3).
3. A tunable clarinet barrel (1) according to one or more of the above claims,
   characterized in that
   the screwing and tuning ring unit (4, 60, 70) is embodied and arranged on the clarinet barrel (1) so that it surrounds exclusively the through passages (100) of the top part (2) and the bottom part (3).
4. A tunable clarinet barrel (1) according to claim 3,
   characterized in that
   the screwing and tuning ring unit (4, 60, 70) is essentially centrally located between the insertion openings (20, 30).
5. A tunable clarinet barrel (1) according to one or more of the above claims,
   characterized in that
   at least one guide pin (8) is provided and located between the top part (2) and the bottom part (3), and inserted in openings provided in the top part (2) and the bottom part (3) as a twist lock.
6. A tunable clarinet barrel (1) according to one or more of the above claims,
   characterized in that
   scale markings are applied to the tuning ring (4), whereby the transition from one marking to the next corresponds to an axial distance change of 0.2 mm to 0.8 mm, preferably 0.5 mm between the top part (2) and the bottom part (3).
7. A tunable clarinet barrel (1) according to one or more of the above claims,
   characterized in that
   the transition from one marking to the next on the tuning ring (4) corresponds to a change in pitch of 0.5 Hz to 1.5 Hz, preferably 1 Hz.

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