EP0352310A1 - Einrichtung zur übertragung von saitenschwingungen auf die wände eines hohlkörpers. - Google Patents
Einrichtung zur übertragung von saitenschwingungen auf die wände eines hohlkörpers.Info
- Publication number
- EP0352310A1 EP0352310A1 EP89900794A EP89900794A EP0352310A1 EP 0352310 A1 EP0352310 A1 EP 0352310A1 EP 89900794 A EP89900794 A EP 89900794A EP 89900794 A EP89900794 A EP 89900794A EP 0352310 A1 EP0352310 A1 EP 0352310A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hollow body
- web
- walls
- support
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10D—STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
- G10D3/00—Details of, or accessories for, stringed musical instruments, e.g. slide-bars
- G10D3/04—Bridges
Definitions
- the invention relates to a device for transmitting string vibrations to the walls of a hollow body according to the preamble of claim 1.
- the vibrations of the strings are radiated from those walls of the instrument body on which the bridge over which the strings are stretched stands.
- This wall is usually called the ceiling.
- the vibrations are passed on by a so-called voice to the hollow body wall opposite the ceiling, the floor, and also from these; emitted.
- the top and bottom are kept at a distance by frame walls and closed to form a hollow body.
- This arrangement of strings, bridge and radiating walls has the disadvantage that the tension force introduced by the bridge into the ceiling of the strings stretched over it loads the ceiling exactly at the point and in the direction in which it is best suited for the emission of tones Can execute vibrations.
- the pretension limits the ability to move and thereby also the sound radiation.
- the freedom of movement of the blanket is further restricted by a curvature of the blanket against the string tension. It necessarily stiffens the blanket in such a way that it is not pressed in by the string tension forces.
- a further restriction of the freedom of movement of the ceiling arises from the fact that string instruments transmit vibrations to the entire surface of the ceiling and: ur string tension support
- DISCOUNT necessary so-called bass bar.
- the invention is therefore based on the object of providing an arrangement of walls and supports in accordance with the preamble of the main claim, in which the string tension forces introduced via the web only insignificantly load the sound-radiating walls in the direction of their oscillating movement, the necessary stiffening the movements of these Minimally impair walls and enable a large-volume instrument body.
- REPLACEMENT LEAF Walls are unnecessary for the freedom of movement of the arch. Due to the statically more rigid derivation of the string tensioning forces, greater tensioning forces can be supported, the bridge can be made higher and thereby the transmission ratio of the string oscillating movements to the movements of the sound-emitting walls can be increased.
- the arrangement of the holes 14 according to claim 2 in the middle of the hollow body side walls 6 and 9 results in the greatest possible distance from hole to hole, seen around the hollow body, with a simultaneous reduction in the bending stiffness of these walls.
- the large spacing of the holes from one another prevents pressure equalization of the air pressure vibrations emerging from the holes around the instrument body down to long-wave, deep tones deeper than with comparable stringed instruments.
- the design of the supports according to claim 3 improves the transmission of the string oscillating movement initiated at a point of contact of the web onto the contact surface on the entire surface of the large hollow body side walls without the wide supports restricting the freedom of movement of the side walls.
- the notch in the contact area of the web improves the bendability of this wall along the line mentioned.
- the support wall is bent along this line. The lower the wall rigidity at this point, the less the transmission of the string movements is prevented.
- Fig. 1 is a perspective view with a section through a stringed instrument hollow body at the point at which the arrangement of the components for transmitting the string oscillating movements on the hollow body walls is visible.
- FIG. 2 shows a side view of an instrument body according to the invention.
- FIG. 3 shows a section through the instrument body at the level of the web.
- FIG. 4 shows a view of the instrument body on the web contact area.
- REPLACEMENT LEAF 1 shows a string 2 stretched over the bridge 1.
- the bridge 1 stands with its feet 3 and 4 on the narrow hollow body wall 5.
- triangular supports 7 and 8 run towards the surface of the wall 6 and touch them at the node 17.
- Each wall 6 and 9 has a straight side 22 and a curved side 23. They are kept at a distance on the straight side 22 by the web stand wall 5 and on the curved side 23 by the frame 11. At the corner points 24, which are formed by the walls 5, 6, 9 and 11, there is the tailpiece 12 on one side and the neck 13 on the other side.
- REPLACEMENT LEAF A swinging movement of the side 2, for example in the direction of the arrow 30, causes a movement of the web 1 in such a way that the foot 3 presses in the wall 5 and the foot 4 lifts the wall 5.
- the supports 7 and 10 are thereby pressed down and bulge the walls 6 and 9 in the direction of arrows 31 and 32 outwards.
- the support 8 is raised by the upward movement of the base 4 and the wall 5 at this point and pulls the wall 6 in the same direction as the movement of the support 7 in the direction of arrow 32 outwards.
- Fig. 2 shows an embodiment of the support 8 according to claim 3.
- the support 8 is so wide that it extends to the corners 24, which from the walls 5,6,9 and 11th
- REPLACEMENT LEAF be formed. Its height decreases between the line of contact 15 with the web rising wall 5 and the line of contact 21 with the wall 6, starting from the node 17 under the web 1 to the corners 24. As a result, the movement of the support 8 is not only communicated at a point 17 of the wall 6, but also along the line 15 at which the support 8 touches the wall 6. This is no longer just bulged out like a tent, but something like an umbrella. In this case, a point load is also distributed through the rods to the surface of the fabric. The larger bulge of the wall 9 captures more air and produces a larger tone of the stringed instrument.
- FIG. 3 A further embodiment of the string vibration transmission device is shown in FIG. 3 according to claim 6.
- the transmission of the string vibrations to the walls 6 and 9 is improved by reducing the moving masses.
- the moving masses are reduced here by omitting the parts of the walls 5, 6 and 9 listed in Claim 6.
- An improvement in the transmission of vibrations from the string 2 to the walls 6 and 9 consists in the wall 5, on which the bridge 1 stands, along the dashed lines 16 shown in FIG. 4, which starts from the base point 3 of the bridge 1, which is between the walls 6 and 9, and to the corners 24, which are formed by the walls 5, 6, 9 and 11, runs through a notch to make them more flexible.
- the wall 5 is bent along these lines.
- the notch reduces the section modulus of the wall 5 at this point.
- the movements caused there by the web 1 are not already supported by a flexible wall 5, but are passed on.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Stringed Musical Instruments (AREA)
- Building Environments (AREA)
- Auxiliary Devices For Music (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3802245A DE3802245C1 (de) | 1988-01-27 | 1988-01-27 | |
DE3802245 | 1988-01-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0352310A1 true EP0352310A1 (de) | 1990-01-31 |
EP0352310B1 EP0352310B1 (de) | 1992-07-22 |
Family
ID=6346017
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89900794A Expired - Lifetime EP0352310B1 (de) | 1988-01-27 | 1988-12-29 | Einrichtung zur übertragung von saitenschwingungen auf die wände eines hohlkörpers |
Country Status (6)
Country | Link |
---|---|
US (1) | US5044246A (de) |
EP (1) | EP0352310B1 (de) |
JP (1) | JPH02501510A (de) |
DE (1) | DE3802245C1 (de) |
RU (1) | RU1830146C (de) |
WO (1) | WO1989007308A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19645533A1 (de) * | 1996-11-05 | 1998-05-07 | Karlwalter Schmidt | Akustische Einrichtung für Saiteninstrumente mit Resonanzkörpern |
DE19755855A1 (de) * | 1997-12-16 | 1999-06-17 | Peter Gottschall | Stereophones Zupfinstrument mit einer Einrichtung zur Verstärkung der Lautstärke |
CN101950553B (zh) * | 2007-08-20 | 2013-01-16 | 梅田勋 | 弦乐器 |
CN103985374A (zh) * | 2014-05-14 | 2014-08-13 | 程生宝 | 高效振动立式钢琴 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US143117A (en) * | 1873-09-23 | Improvement in violins | ||
US775658A (en) * | 1903-04-01 | 1904-11-22 | William Steck | Musical instrument. |
US1043015A (en) * | 1911-09-26 | 1912-10-29 | George Jacob Junker | Violin. |
AT91576B (de) * | 1920-03-11 | 1923-03-10 | Johann Cerny | Streichinstrument mit Resonanzeinrichtung. |
US2046331A (en) * | 1934-01-27 | 1936-07-07 | Acousti Lectric Company | Stringed musical instrument |
DK115075B (da) * | 1962-07-19 | 1969-09-01 | A Mortensen | Strengeinstrument med lydmembraner. |
DK115075A (de) * | 1972-12-12 | 1975-08-04 | Sterling Drug Inc | |
DE2740605A1 (de) * | 1977-09-09 | 1979-03-22 | Weidler | Chrotta in cellogroesse |
-
1988
- 1988-01-27 DE DE3802245A patent/DE3802245C1/de not_active Expired
- 1988-12-29 JP JP1500701A patent/JPH02501510A/ja active Granted
- 1988-12-29 EP EP89900794A patent/EP0352310B1/de not_active Expired - Lifetime
- 1988-12-29 US US07/415,280 patent/US5044246A/en not_active Expired - Fee Related
- 1988-12-29 WO PCT/DE1988/000785 patent/WO1989007308A1/de active IP Right Grant
-
1989
- 1989-09-27 RU SU894742153A patent/RU1830146C/ru active
Non-Patent Citations (1)
Title |
---|
See references of WO8907308A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0352310B1 (de) | 1992-07-22 |
JPH02501510A (ja) | 1990-05-24 |
US5044246A (en) | 1991-09-03 |
WO1989007308A1 (en) | 1989-08-10 |
DE3802245C1 (de) | 1989-03-23 |
RU1830146C (ru) | 1993-07-23 |
JPH0330157B2 (de) | 1991-04-26 |
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