DE102015000367A1 - Pedal for use on percussion instruments and drums - Google Patents

Abstract

1. Description: Pedal / foot pedal for use as a single or multiple pedal for mechanically moving a beater or several mallets and producing eardrum vibrations. Pedals for drums have been known for about 100 years and serve to implement a foot movement on the pedal tread plate in a mostly circular motion movement of a Schlegel. 2. Solution: In order to obtain a stable construction as possible, an 8 mm thick base plate (1) is used as a base. In adjustable angle and end each ball-bearing, there is the tread plate (2), which receives on the tread side, a 0.1 to 4 mm thick, heat-insulating coating of an adhesive hollow glass ball mixture. In a deflection of the tread a force in the coupling rod (7) is initiated. As a result, the mallet (3), held by the ball-bearing main shaft (16) is moved on a rotational path and impinges on the batter. In order to meet the individual requirements of the operator, there is an adjusting disc (4), which makes it possible to adjust the distance in the rest position between fur and mallet. The tread plate is held by a tension spring in rest position. The spring preload of this tension spring is adjustable with an adjusting screw (15). Another adjusting disc (5) makes it possible to adjust the tread plate height and the angle of attack of the coupling rod to the main shaft by turning it. A on the adjusting disc (5), longitudinally displaceable Klemmnutstein (6) has the task to set the leverage between treadle and Schlegel. As a special feature, the Klemmnutstein (6) has a transverse bore at the front and another at the rear end. If the coupling rod (7), as shown in all pictures, bolted to the front transverse bore, the flail (3) moves downward. If the coupling rod (7) screwed to the rear transverse bore, the force application direction is reversed and the flail (3) moves upwards. The tensioning lever (10) raises a sliding shoe (8), which is prestressed by means of a compression spring (9a; 9b) and generates a permanent clamping force when the lever is released. This attachment is arranged so that the entire space is kept free under the foot plate. Thus, the tread plate (2) can be stepped almost horizontally. The tensioning lever serves in rest position as anti-rotation lock for the adjusting knob (15) of the spring preload of the footboard.

Description

Pedal / foot pedal for use as a single or multiple pedal for mechanical movement of a stool or several flails and generation of ear drum vibrations.

Pedals for drums have been known for about 100 years and serve to implement a foot movement on the pedal tread plate in a mostly circular motion movement of a Schlegel. If the flail hits the eardrum, the fur is vibrated due to its pre-stressing, in which case the air molecules are set in motion by the fur and the drum-typical sound of drums is created.

• – Ludwig Speedking (40er bis 70er Jahre, USA).
• – Tama Iron Cobra (Fernost, ca. Bj. 2000)
• – Pearl Eliminator (Fernost, ca. Bj. 2005)
• – DW, MDD (machined direct drive; USA ca. 2013)

As well-known and typical executions of different foot machines are named the following types:

• - Ludwig Speedking (40s to 70s, USA).
• - Tama Iron Cobra (Far East, circa year 2000)
• - Pearl Eliminator (Far East, circa 2005)
• - DW, MDD (machined direct drive, USA approx. 2013)

The structure of the mechanism is to be mentioned in these models as mutually similar or comparable.

• – Vierpunktklemmung zur Fixierung der Fußmaschine am Spannreifen der Trommel.
• – Durch die gewählte Anordnung der Vierpunktklemmung wird erreicht, daß der Bereich unterhalb der Trittplatte von mechanischen Bauteilen freigehalten wird und die Trittplatte somit nahezu waagerecht durchgetreten werden kann. Dies ist mit der bisher üblichen Dreipunktklemmung nicht erreichbar.
• – Eine Hebelumlenkung, angeordnet an der Hauptsäule der Fußmaschine, sorgt dafür daß die Fußmaschine ergonomisch sehr günstig befestigt werden kann. Zusätzlich dient der Hebel in Ruhestellung als Sicherungselement der Verstellschraube zur Federvorspannung.
• – Eine thermisch isolierende Schicht, bestehend aus Klebstoff gemischt mit Hohlglaskugeln, vermindert die Wärmeableitung des Fußes an die Aluminium-Trittplatte. Diese Beschichtung ist nötig, um den Spielkomfort des Pedals bei Barfuß- oder Sockfußbespielung deutlich zu erhöhen. Die Auskühlung der im Fußbereich sehr zahlreich vorhandenen Nervenstränge wird hiermit sehr effektiv verhindert und erhöht auf diesem Wege die Bespielbarkeit der Fußmaschine. Die Beschichtung wird auf der Oberseite der Trittplatte angebracht und weist eine Dicke zwischen 0,1 bis 4 mm auf.
• – Reversierbarkeit der Kraftflußrichtung. Aufgrund der Bauart kann die Maschine durch Umschrauben der Koppelstange im Kraftfluß umgekehrt werden und ist somit geeignet nicht nur eine Schlegel-Abwärtsbewegung, sondern auch eine Schlegel-Aufwärtsbewegung durchzuführen. Man nennt diesen Betrieb „Cocktail-Drum”, es handelt sich hierbei um eine sehr kompakte Trommelanordnung. Möglich wird diese Kraftumkehr durch die besondere Bauweise des Klemmnutsteins, der, entgegen zu bisher üblichen Ausführungen, anstelle von einer Querbohrung am vorderen Ende, zusätzlich eine Querbohrung am hinteren Ende aufweist.

The structure according to the invention differs in essential features from the previously known pedals, which can be formulated as follows:

• - Four-point clamping for fixing the foot machine on the hoop of the drum.
• - The chosen arrangement of the four-point clamping ensures that the area below the tread plate is kept free of mechanical components and the tread plate can thus be almost horizontally passed. This is not achievable with the usual three-point clamping.
• - A lever deflection, arranged on the main column of the pedals, ensures that the pedals can be ergonomically attached very cheap. In addition, the lever is used in the rest position as a securing element of the adjusting screw for spring preload.
• - A thermally insulating layer, consisting of adhesive mixed with hollow glass spheres, reduces the heat dissipation of the foot to the aluminum tread plate. This coating is necessary to significantly increase the comfort of the pedal when barefoot or Sockfußbestpielung. The cooling of the nerve fibers, which are very numerous in the foot area, is hereby prevented very effectively and thus increases the playability of the pedals. The coating is applied to the top of the tread plate and has a thickness of between 0.1 to 4 mm.
• - Reversibility of the power flow direction. Due to the design of the machine can be reversed by screwing the coupling rod in the power flow and is thus suitable not only a Schlegel-downward movement, but also to perform a Schlegel-upward movement. This operation is called "cocktail drum", this is a very compact drum arrangement. This power reversal is made possible by the special construction of the Klemmnutsteins, which, in contrast to previously common designs, instead of a transverse bore at the front end, additionally has a transverse bore at the rear end.

Solution:

The design of a pedals for drums is very complex. Whereas it used to be necessary to build a mechanism for individual pedals that had to produce about 100 beats per minute, nowadays up to 220 beats per minute are required.

For this reason, a new design of the essential components of a pedemaking machine was carried out using currently valid playing techniques and medical findings.

In order to obtain a stable construction as possible, an 8 mm thick base plate ( 1 ) used as a basis. In adjustable angle and end each ball-bearing, is the tread plate ( 2 ), which receives on the tread side, a heat-insulating coating of an adhesive hollow glass ball mixture. In a deflection of the treadboard is a force in the coupling rod ( 7 ). This will cause the flail ( 3 ), held by the ball-bearing main shaft ( 16 ) moves on a rotation track and hits the batter head.

In order to meet the individual requirements of the operator, there is an adjustment disc ( 4 ), which makes it possible to adjust the distance at rest between fur and mallet. The tread plate is held by a tension spring in rest position. The spring preload of this spring is with an adjusting screw ( 15 ) adjustable. This type of mechanics is state of the art and is therefore not described in detail.

Another adjusting disc ( 5 ) makes it possible to adjust the treadle height and the angle of attack of the coupling rod to the main shaft by twisting. This essentially determines the response of the mechanics and sets the balance of power for the downward / upward movement.

One on the adjusting disc ( 5 ), longitudinally displaceable Klemmnutstein ( 6 ) has the task to determine the leverage between tread plate and Schlegel. With a very short lever arm, the angle translation is high, ie the flail lays a long way back, even if the treadle is only minimally moved. If you extend the lever arm, the tread plate ( 2 ) are strongly moved around the flail ( 3 ) to deflect. As a special feature, the Klemmnutstein ( 6 ) has a transverse bore at the front and another at the rear end. Is the coupling rod ( 7 ), as shown in all pictures, bolted to the front cross hole, the flail ( 3 ) downwards. Will the coupling rod ( 7 ) screwed to the rear transverse bore, the force introduction direction is reversed and the flail ( 3 ) moves upwards.

Another special feature is the four-point clamping used. The tension lever ( 10 ) lifts a shoe ( 8th ), which by means of compression spring ( 9a ; 9b ) is biased and generates a permanent clamping force after releasing the lever. This attachment is arranged so that the entire space is kept free under the foot plate. Thus, the tread plate ( 2 ) are passed almost horizontally. This is not possible with the otherwise used Dreipunktklemmung, because the clamping nose by design must be located just below the treadle. In addition, the four-point clamping is not so prone to the action of lateral forces and therefore does not dissolve so quickly from the clamping ring of the drum.

LIST OF REFERENCE NUMBERS

1

baseplate

2

footboard

3

drumstick

4

Adjustment disc Distance from the batter to the mallet

5

Adjusting pulley adjustment Lever angle and footplate angle

6

Clamping groove for adjusting the lever arm length and reversing the direction of force

7

Coupling rod (connection of clamping groove block to the step plate)

8th

Slide shoe with the upper rubber elastic buffers

9a; 9b

Compression spring for 4-point clamping ring clamping

10

Tensioning lever for lifting the sliding shoe; Secure the spring tension adjustment screw against twisting

11a; 11d

Lower rubber buffers of the four-point clamp

11b; 11c

Upper rubber buffers of the four-point clamp

12

Tension spring for prestressing the tread plate

13

Force application point for the lifting mechanism of the sliding shoe

14

Main pillar / storage column right

15

Adjusting screw spring preload pedal

16

main shaft

Claims (4)

Pedal for use as a single or double pedal to initiate a shock pulse on drums or other percussion instruments, characterized in that the clamping takes place on the hoops with a four-point clamping, which keeps the area under the tread plate, so that the tread plate can pass almost horizontally. Clamping device, characterized in that a clamping lever is present, which is easily operated by hand due to its high leverage and used in rest position as anti-rotation for the adjustment of the tension spring for the bias of the treadle. Tread plate, characterized in that the tread is provided with a heat-insulating coating of 0.1 ... 4 mm thickness, consisting of a mixture of adhesive and hollow glass or plastic balls. Klemmnutstein, characterized in that there is a transverse bore at both ends to which mutually a coupling rod can be screwed. By selecting the respective hole, an upward or downward movement of the bail is achieved when passing through the tread plate.

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