DE202009007428U1 - Device for generating sound on stringed instruments - Google Patents

Abstract

Apparatus for generating sound on stringed instruments, with
a motorized friction wheel (1) for painting at least one string of the stringed instrument,
Guide means (2, 3) for guiding the movement of the friction wheel (1) perpendicular to the axis of rotation of the friction wheel (1)
and a pedal (10, 11, 12) for controlling the guide means (2, 3).

Description

1. Designation

The The present invention relates to a sound generating device on bowed instruments without the use of a bow, controlled by a pedal.

2nd short version

2.1 Technical problem (prior art)

The patent DE 199 56 211 B4 describes a tool for unilateral arm amputees violin virtuosos with a bow guide attached to a helmet, a motorized bow and a foot control. It is violin technically flexible (Springbogen, Strichstelle, bow speed), but as an apparatus consuming and learning intensive.

2.2 solution

It Thus, the object of the present invention, the state of Improve technology. In particular, it is the object of the present Invention, a device for generating sound on stringed instruments provide, which is simpler and easier to use is.

These The object is achieved by the features of independent claim 1.

3. Drawings

The The present invention will be described below with reference to preferred embodiments explained in more detail with reference to the attached figures, in which show

1 a view of the device according to the invention from the left side of a string instrument seen by the player,

2 a view of the device according to the invention from the player of a stringed instrument,

3 a pedal of the device according to the invention,

4a and 4b schematically the sound generation and pause by means of the device according to the invention,

5a and 5b schematically the control of the strings by means of the device according to the invention,

6 an alternative embodiment of the device according to the invention,

7a to 7d a further alternative embodiment according to the device according to the invention.

1

friction wheel

2

guide template

3

Zugbrett

4

bridge

5

Handrails

6

Bowden Bridge / surgical guide roll plate / foot plate

7

Bowden Zugbrett / guide template pedal frame / footplate

8th

engine

9

feathers under the guide template

10

Pedal-bottom plate with frame

11

Pedal-rolling plate

12

Pedal footplate

13

C-shaped Plates of the ferrules

14

sliding bars

15

recesses in the pedal frame to engage a leaf spring

16

recess in the guide template

17

neckline in the trainboard

18

Reibradachse

19

feathers under the footplate of the pedal

20

roll under the roller plate of the pedal

21

frame for holding the slide bars

4. Description

The invention reduces the parameters of tone generation on tone and pause and control of the respective string. As the device is mounted on the instrument, the adjustment to the strings is independent of the playing posture. The sound is generated by means of a friction wheel 1 that of a motor 8th is permanently driven. The guide template 2 defines the possible positions of the friction wheel relative to the strings 1 ,

To create the sound, the player presses the foot plate of the pedal 12 down. This will cause the friction wheel 1 over the Bowden cable 6 moved to the string. About the strength of the contact pressure, the volume of the sound can be influenced. To end the sound, the player lets the foot plate of the pedal 12 Come on. Then away by the force of the springs 9 the friction wheel 1 from the string.

To control the string is the axis 18 of the friction wheel 1 in the recess 16 the guide template 2 by means of a draw board 3 over the Bowden cable 7 moved to the right or left when the foot plate 12 is moved to the right or left. recesses 15 in the pedal frame 10 into the one Leaf spring snaps, make it easier to find the places on the strings without sound.

5. Field of application

The Device allows players with significant movement restriction the right arm or the entire right half of the body (about after a stroke) playing a stringed instrument at light to medium technical level (eg ensemble music the Renaissance) in a sitting position. In that the Device is placed only on the string instrument and removable, is not a permanent modification of the string instrument necessary. In addition, the inventive Device simple and easy to learn.

6th embodiment

• a) 1 shows the device from the left side of the player; the right side in the background is only hinted at. Visible is the attachment of the device on the instrument: two clamps from two C-shaped plates 13 , vertically connected to each two threaded rods are attached to the instrument on the right and left side of the central bracket (known as violin maker Leimzwingen for the center bracket of the bezel). In addition, the handrail becomes 5 for attaching the device to each ferrule approximately in the middle of the plates 13 vertically mounted so that it projects beyond the top of the clamps by 1.5-2 Zargenhöhen. With these handrails 5 becomes the guide template 2 connected so that they can slide up and down these. At every handrail 5 holds a spring 9 the guide template 2 in the highest position. Above the guide template 2 becomes the bridge 4 on both handrails 5 fixed. In front of the guide template 2 the friction wheel sits 1 , behind the guide template 2 there is the drawboard 3 with a hole in axle thickness, with the help of the Reibradachse 18 in the recess 16 the guide template 2 is moved. The motor 8th and the power cord (not shown in the drawing) are on the back of the drawboard 3 attached. The motor axis is with the Reibradachse 18 connected by the axle hole of the drawboard 3 and the recess 16 the guide template 2 to the friction wheel 1 leads. The power cable follows the Bowden cable 7 to the pedal frame 10 ; There can be connected via a Lästerklemme o. Ä. A battery, a battery or a transformer.
• b) 2 shows the device from the player side. For vertical strings (cello, double bass, viola da gamba) this is the fingerboard side, for instruments played on the arm the bridge side. The guide template 2 has a recess 16 in the axial thickness following the foundation of the foundation: the foundation is considered as a circle cutout, around its center another circle with a circle around the radius of the friction wheel 1 larger radius is hit. Some from the movement along this recess 16 resulting positions of the friction wheel 1 are indicated by dotted lines. This movement is by a Bowden cable attached to the player's right side of the device 7 accomplished. Its inner strand is fixed in the guide template, the shell is at the drawboard 3 fixed. The operation of this Bowden cable is described in letter e) and the 5 and 7 shown in more detail. In the bridge 4 becomes the shell of the upper bowden cable 6 locked, the inner strand in the guide template. For the function of this Bowden cable see also d) and 4 ,
• c) 3 shows the pedal element from the perspective of the player. In a frame 10 slides the rolling plate 11 on rollers 20 to the right and left; recesses 15 as part of 10 allow engagement of a biased leaf spring mounted on the rolling plate at those points where the friction wheel 1 above a single string or in the middle between two strings. The lateral Bowden cable 7 The device is coming from the right with the case in the frame 10 and with the inner strand in the rolling plate 11 anchored. The pedal element continues to receive one to the toes by pressure of the springs 19 rising footplate 12 on the heel side with a hinge on the roller plate 11 is attached. The upper Bowden cable 6 the device is fitted with the sheath in the footplate 12 and with the inner strand in the rolling plate 11 anchored.
• d) 4a / b shows schematically the operation of the upper Bowden cable 6 , The device is shown from the perspective of the player, the pedal with roller plate 11 and foot plate 12 of the page. Apply pressure to the footplate with the toe 12 exercised, this leads to lowering of the friction wheel 1 to the strings until all the strings are touched with pressure in the lowest possible position. As the pressure eases, the friction wheel becomes 1 through the springs 9 raised. The foot plate is replaced by the springs 19 pushed back to the starting position.
• e) 5a / b shows schematically the function of the lateral Bowden cable 7 , The device is shown from the perspective of the player, the pedal with foot plate 12 and frame 10 from above. Will the foot plate 12 Rolled to the right, is moved by the movement of the train board 3 the friction wheel 1 in the recess 16 the guide template 2 to pulled right, you roll the foot plate 12 to the left, is due to the movement of the train board 3 the friction wheel 1 in the recess 16 the guide template 2 pushed to the left.
• f) 6 represents an alternative design in the handrails 5 only for hanging a frame 21 serve, in which the bridge is integrated. In this downwardly open frame 21 become separate sliding bars 14 for the guide template 2 attached. The device is easier to remove from the instrument, but is a bit heavier.
• G) 7 shows another alternative type of device: here is the drawboard 3 between axle bore and Bowdenzugbefestigung additionally with a mirrored down to a horizontal axis recess in web shape 17 provided, the guide template 2 receives an additional axle hole. Two barrel axles now connect drawbar 3 and guide template 2 : one runs in the recess 16 the guide template 2 and in the axle hole of the train board 3 , the others in the axle hole of the guide template 2 and in the recess 17 of the train board 3 , This will change the direction of movement of the draw board 3 stabilized and kinking of the inner strand of the Bowden cable 7 avoided. For the friction wheel axle 18 will have a separate hole in the drawboard 3 created and provided with ball bearings. In this way, the string driving movement can rotate the friction wheel 1 do not interfere.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 19956211 B4 [0002]

Claims (7)

Apparatus for generating sound on stringed instruments, comprising a motorized friction wheel ( 1 ) for painting at least one string of the stringed instrument, guide means ( 2 . 3 ) for guiding the movement of the friction wheel ( 1 ) perpendicular to the axis of rotation of the friction wheel ( 1 ) and a pedal ( 10 . 11 . 12 ) for controlling the guiding means ( 2 . 3 ). Device according to claim 1, wherein the guide means ( 2 . 3 ) a guide template ( 2 ) with a recess ( 16 ) for guiding the axis of the friction wheel ( 1 ) and relative to the guide template ( 2 ) moving draw board ( 3 ) are. Apparatus according to claim 2, wherein the pedal ( 10 . 11 . 12 ) by means of a first Bowden cable ( 7 ) with the drawing board ( 3 ) and by a sideways movement of the foot plate ( 12 ) the drawing board ( 3 ) compared to the guide template ( 2 ) and thereby the axis of the Reiberades ( 1 ) along the recess ( 16 ) is moved. Apparatus according to claim 2 or 3, wherein the guide means ( 2 . 3 ) in one direction by means of springs ( 9 ) are biased. Apparatus according to claim 4, wherein the foot and roll plate ( 11 . 12 ) of the pedal by means of a second Bowden cable ( 6 ) with the guiding means ( 2 . 3 ) and by depressing the pedal base plate ( 12 ) the guiding means ( 2 . 3 ) can be moved against the spring force. Apparatus according to claim 4 or 5, wherein the movement of the guide means ( 2 . 3 ) is controlled against each other via two axes, one of which in the recess ( 16 ) of the guide template ( 2 ) and in the axle hole of the train board 3 whose other in an additional axis hole of the guide template and in a horizontal mirror-image recess ( 17 ) of the train board ( 3 ), and the axis of the friction wheel ( 18 ) is guided in a separate axle hole in the drawboard. Stringed instrument with a device after one of the preceding claims, wherein the device is removable is mounted on the string instrument.