DE202011004833U1 - Forcible opening mechanism of a flap of a woodwind instrument such as a saxophone or the like, which is closed in the unactuated state - Google Patents

Abstract

Mechanism for positively opening a flap of a woodwind instrument, such as a saxophone or the like, which is closed in the non-actuated state.

Description

The invention comprises a mechanism for positively opening a flap of a woodwind instrument, such as saxophone, clarinet, flute and the like, which is closed in the unactuated state, according to the preamble of claim 1.

In wind instruments of the type mentioned, it is of particular importance that all flaps reliably open or close upon actuation of the keys. Proper operation of a woodwind instrument is significantly compromised if the normally closed flaps do not open when the instrument keys are pressed, as the pad sticks to the edge of a sound hole due to long inactivity.

State of the art:

In a conventional manner, the instrument to ensure the sealing of the sound hole of a woodwind instrument equipped with the flap mechanism. In the one-piece flap structure, the flaps are simply constructed in one piece and are opened or closed by direct force on the flap without further intermediate links. In each flap, a pad is attached to seal the sound hole.

• 1. Die Klappe, die das Tonloch eines Instruments abdeckt und,
• 2. Der Betätigungsheber, der die Klappe in der geschlossenen Position hält.

In some flaps of a woodwind instrument, especially in the case of valves that remain closed in the unactuated state, these flaps consist of two moving parts:

• 1. The flap which covers the tone hole of an instrument and,
• 2. The operating lever, which holds the flap in the closed position.

Upon actuation of the operating lever, the flap is released and pushed by a nail-shaped steel spring upwards so that the sound can escape.

• 1) alle Klappen eines Holzblasinstruments müssen mit ungefähr gleicher Betätigungskraft und relativ leichtgängig eingestellt werden, damit der Spieler sie ohne Anstrengung bedienen kann.
• 2) bei den zweiteilig aufgebauten Klappen wird eine Feder, die für das Öffnen der Klappe zuständig ist, von einem ebenfalls mit einer Nagelfeder ausgestatteten Tastenheberheber unterdrückt. Dabei muss die Feder des Tastenhebers stärker gespannt werden, damit sie, wenn der Tastenheber entlastet wird, die geöffnete Klappe schließt. Somit muss, wenn die Spannkraft der Klappenfeder steigt, zwangsläufig die Spannkraft der Feder des Tastenhebers steigen, damit die Klappe nach dem Entlasten des Betätigungshebers in die geschlossene Position zurück gedrückt werden kann. Dies hat eine Auswirkung auf die Bedienung des Musikinstruments, denn die Spannkraftänderung nur einer einzelnen Feder an einer Klappe, wie in diesem Fall der Gis-Klappe, zieht eine Veränderung der Spannkraft anderer Klappen nach sich.

The problem with this design is that, if the pad that is in the flap sticks to the edge of a clay hole, the force of the nail spring will not be enough to open that flap. The tension of this so-called nail pen can not be set arbitrarily strong, because

• 1) all flaps of a woodwind instrument must be adjusted with approximately the same operating force and relatively smooth, so that the player can operate them without effort.
• 2) in the case of the two-part flaps, a spring which is responsible for opening the flap is suppressed by a button lifter also equipped with a nail pen. In this case, the spring of the button lifter must be tightened so that it, when the key is relieved, the open flap closes. Thus, as the biasing force of the damper spring increases, the urging force of the key lifter spring must inevitably rise to allow the damper to be pushed back to the closed position upon relieving the operating lifter. This has an effect on the operation of the musical instrument, because the change in the clamping force of only a single spring on a flap, as in this case the GIS flap, causes a change in the clamping force of other flaps.

Because the two-piece Gis-flap is a combination flap d. h., That this flap can not only be operated by one button, but also simultaneously with other flaps - depending on the key combination - must open or close. Therefore, the Gis-flap is also constructed in two parts, so that they can be decoupled in certain positions of their keypad and can be moved independently. If the resilience of the Gis spring increases, more force must be used to operate other keys. This is only desirable and possible to a certain extent when playing a woodwind instrument, since the player may operate or close up to four keys simultaneously with a single key. So he has to spend more and more power to close the flaps. The resilience of a single spring can affect the balance of the entire instrument. In addition, with conventional instruments, the resilience of the spring can not be adjusted separately for the gis-flap without affecting the other flaps.

A key pad actuating mechanism as in the patent DE 198 14 729 C2 should have solved this requirement.

In this construction, the opening force of the closed flap is supported by a lever on the gis-flap. As a support point for the lever on the Gis flap, a lever arm on the F-flap is selected, which is held in the open state by the nail spring. Here's the problem with this design, because if the closed gis door sticks tightly to the tone hole, the opening force is redirected by the lever on the gis door to the support point located on the F door. This means that the F-flap is loaded by the lever on the gis-flap and may close without opening the closed gis-flap. This effect depends on how much the flap sticks and unpredictably occurs again and again. Thus, the desired result is not reliably guaranteed here.

The problem solution:

• 1. Die im unbetätigten Zustand geschlossene Klappe sollte sich bei der Betätigung der Klappentaste zuverlässig öffnen.
• 2. Die zweiteilige Klappe sollte genau wie eine einteilige Klappe die Öffnungskraft der Taste zur Klappenöffnung direkt übertragen.
• 3. Dabei sollte die Kombinationsfunktionalität einer Klappe erhalten bleiben, d. h., dass diese Klappe auch mit den anderen dafür vorgesehenen Tasten bedient werden kann.

The objectives of the development were as follows:

• 1. The closed in the unactuated state flap should open reliably when you press the flap button.
• 2. The two-piece flap, like a one-piece flap, should directly transmit the opening force of the button to the flap opening.
• 3. The combination functionality of a damper should be retained, ie this damper can also be operated with the other dedicated keys.

The mechanism for positively opening a closed in the inoperative state flap of a woodwind instrument such as saxophone, clarinet, flute and the like according to the preamble of the protection claim 1 provides an automatically switchable connection (coupling) between two movable flap parts and thus ensures a reliable opening of the flap.

The mechanism consists of a U-shaped lock 1 (Figure 1) and a switching mechanism.

The U-shaped castle 1 is with the flap lifter 3 (Figure 1) screwed so that the U-lock 1 can be tilted to the OPEN position (illustration 2) and returned to the HOME position (illustration 2). The U-lock moves 1 transverse to the button lifter 10 , and flap lifter 3 (Figures 1 and 2).

In the position to become the key lifter 10 and the flap lifter 3 (Representation 1 and 2 ZU) coupled together. Thus, when pressing the button lifter 10 (through the Gis key 2 ) the flap can always be opened reliably because of the button lifter 10 pulls the flap coupled to the U-lock with it and thus opens the flap under duress (illustration 1).

So that all combinations of the flap are retained, the mechanism is gem. Patent claim 1 equipped with a switching mechanism. The switching mechanism works here automatically, meaning that the player can use the musical instrument as usual. It consists of: a connecting rod 5 (Illustration 1) with ball joint 7 , Change lever 6 with an adjusting device 8th , Screw 9 and adjusting screw 12 (Illustration 2).

The connecting rod 5 (Figure 1) is at one end with a ball joint 7 connected. The ball of the ball joint 7 is firmly connected to the instrument at one point. Thus, the connecting rod 5 to move around this fixed point laterally while simultaneously moving up and down. This is important for the function of the mechanism, because the U-lock 1 (Figure 1) is moved up and down when the door is opened and must be pressed simultaneously when the F button is pressed 4 be tilted sideways to the OPEN position (illustration 2 OPEN).

The connecting rod 5 (Figure 1) has approximately in the middle of an oval-shaped hole 11 , The connecting rod 5 (Illustration 1) is through this hole and a screw with the U-lock 1 so connected that when moving the U-lock 1 the screw 9 Slips easily into the hole while keeping the movement of the U-lock 1 not disabled.

The second end of the connecting rod 5 (Illustration 1) is in the adjusting device 8th introduced.

With the adjusting device 8th (Figures 1 and 2) and the adjusting screw 12 (Figure 2), the height adjustment of the U-lock 1 be made. The adjusting device 8th (Illustration 1 and 2) is with the switching lever 6 through the adjusting screw 12 (Figure 2) firmly connected. The switching lever 6 (Illustration 1) is with the F-flap 4 connected and when operating the F-flap 4 the change-over mechanism sets in motion (illustration 2) and thereby the U-lock 1 switched to the OPEN or CLOSE position (illustration 2).

The objectives and the advantages achieved by the invention gem. Protection claim in the overview.

objectives:

• 1. The closed in the unactuated state flap should open reliably when you press the flap button.
• 2. The two-piece flap, like a one-piece flap, should directly transmit the opening force of the button to the flap opening.
• 3. The combination functionality of a flap should be preserved, ie. h., That this flap can also be operated with the other dedicated buttons.

This objective has been achieved in all respects.

The advantages:

The closed in the unactuated state flap can be reliably opened, even if it sticks to the sound hole of a musical instrument.

LIST OF REFERENCE NUMBERS

1

U-shaped lock

2

Gis button

3

flap jack

4

F key

5

connecting rod

6

Switching lever

7

ball joint

8th

adjusting

9

screw

10

keys Heber

11

Oval shaped hole

12

adjustment

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 19814729 C2 [0008]

Claims (10)

Forcible opening mechanism of a flap of a woodwind instrument such as a saxophone or the like, which is closed in the unactuated state. Mechanism according to claim 1, characterized in that on the flap lifter 3 (Figure 1) a U-shaped lock 1 is appropriate. Mechanism according to one of claims 1 to 2, characterized in that the U-shaped lock 1 transverse to the flap lifter 3 and the keypad 10 (Figure 1) is aligned. Mechanism according to one of claims 1 to 3, characterized in that one side of the U-lock 1 with the flap lifter 3 on the bolted axle is connected so that the U-lock 1 (Figure 1) can be easily moved up and down. Mechanism according to one of claims 1 to 4, characterized in that the U-shaped lock 1 by pressing the F key 4 (Figure 1) can be switched with the switching mechanism in the two positions position CLOSE or position OPEN (Figure 2). Mechanism according to one of claims 1 to 5, characterized in that the switching mechanism consists of a connecting rod 5 , a switching lever 6 and an adjusting device 8th (Figure 1). Mechanism according to one of claims 1 to 6, characterized in that the connecting rod 5 (Figure 1) at one end with a ball joint 7 is equipped and the ball joint 7 connected to the instrument via its ball. Mechanism according to one of claims 1 to 7, characterized in that the connecting rod 5 an oval shaped hole 11 (Figure 1) and through this hole with the U-lock 1 using a screw 10 connected is. Mechanism according to one of claims 1 to 8, characterized in that the switching lever 6 (Illustration 1) with the F-flap 4 is firmly connected at one end and at the other end to the end of the adjusting device 8th is screwed. Mechanism according to one of claims 1 to 9, characterized in that one end of the connecting rod (representation 1) in the adjusting device 8th is introduced.

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