EP2823476B1 - Klavier oder flügel mit saiten und einem klangsteg - Google Patents

Klavier oder flügel mit saiten und einem klangsteg Download PDF

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Publication number
EP2823476B1
EP2823476B1 EP13707639.4A EP13707639A EP2823476B1 EP 2823476 B1 EP2823476 B1 EP 2823476B1 EP 13707639 A EP13707639 A EP 13707639A EP 2823476 B1 EP2823476 B1 EP 2823476B1
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EP
European Patent Office
Prior art keywords
sound
bridge
piano
section
sound bridge
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.)
Active
Application number
EP13707639.4A
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German (de)
English (en)
French (fr)
Other versions
EP2823476A1 (de
Inventor
Hannes SCHIMMEL-VOGEL
Nikolaus Schimmel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schimmel Verwaltung GmbH
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Schimmel Verwaltung GmbH
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Priority to PL13707639T priority Critical patent/PL2823476T3/pl
Priority to SI201331570T priority patent/SI2823476T1/sl
Publication of EP2823476A1 publication Critical patent/EP2823476A1/de
Application granted granted Critical
Publication of EP2823476B1 publication Critical patent/EP2823476B1/de
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C3/00—Details or accessories
    • G10C3/06—Resonating means, e.g. soundboards or resonant strings; Fastenings thereof
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C1/00—General design of pianos, harpsichords, spinets or similar stringed musical instruments with one or more keyboards
    • G10C1/04—General design of pianos, harpsichords, spinets or similar stringed musical instruments with one or more keyboards of grand pianos
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C3/00—Details or accessories
    • G10C3/04—Frames; Bridges; Bars

Definitions

  • the present invention relates to a piano or grand piano, with a soundboard and strings, which rest on a sound bar with two longitudinal edges, wherein the sound bar has a first recess and a second recess, wherein the two recesses arranged on the two opposite longitudinal edges of the sound bar are,
  • Pianos and grand pianos, especially concert grand pianos, are among the pianoforte instruments. They are stringed instruments and commonly known. They have a soundboard on which a bridge, commonly referred to as a sound bar, is attached. On such a sound bridge lie strings that are guided by bridge pins and can be excited by the striking of hammer heads to vibrate. The transmission of the energy generated by this oscillation on the soundboard by means of the sound bridge, which is usually glued to the soundboard.
  • the lateral extent of a sound bridge in pianos and grand pianos is also considerable. It can be up to 2000mm, or possibly even more, for very large wings. For string instruments, the maximum length is about 150 mm.
  • the lateral extent of the webs sound is not purely a straight line but runs on the soundboard of a grand piano, such as a grand piano, quite slightly curvilinear shape.
  • Sound bars are considered due to the above requirements mainly as supporting structures for the strings and deliberately built to accommodate the forces correspondingly robust and solid.
  • the bass bridge is constructed as a bridge and consists of several individual parts. Due to the bridge construction, the vibration introduction into the soundboard should be shifted over a certain distance. For further reinforcement metallic support elements and other components are provided. A glass layer and damping material is also provided for specific purposes.
  • the actual sound bridge has a continuous rectangular cross-section.
  • This object is achieved in a generic piano or grand piano with the invention in that in addition to the recesses a concavity is provided in one of the two opposing longitudinal edges in a portion of the sound bridge, which is provided for receiving the strings of the high treble that this A bulge in the cross section of the sound bridge occupies the transition region from the side adjacent to the soundboard to the longitudinal flank and that the relative reduction of the component volume varies over the course of the sound web in the longitudinal direction.
  • the sound bar has a high rigidity at the contact surfaces to the soundboard and also at the contact surfaces to the strings.
  • the present invention provides that in the sound ridge recesses are provided on the sides or in other words longitudinal edges.
  • sides or “longitudinal flanks” is meant here those surfaces which run along the sound bridge and are normally neither in direct contact with the soundboard nor in direct contact with the strings. These side surfaces are standing thus opposite.
  • the recesses may be in the form of flutes and may be produced by milling into the blank of the sound bar or the like.
  • the material cross-section is reduced in the middle of the sound bar, whereby its flexibility is increased. This allows the interaction with the vibrating soundboard to take place with less energy loss.
  • the lever ratios in the web cross-section created by the recesses can lead to an increase in the dynamic transfer rate of approximately 18%.
  • the recesses are arranged symmetrically or at least substantially symmetrically within a cross section with respect to a vertical axis.
  • cross-section is here understood a section through the sound bridge, which is almost perpendicular to the longitudinal direction and thus also perpendicular to the longitudinal edges or sides.
  • the recesses do not exceed a certain size in shape because it has been shown that the positive influence on the vibration properties of the sound bar only works up to a certain limit. Above such a limit value, the relative proportion of the material removed by the introduction of the recesses becomes too high and the stability of the component sound bar is excessively reduced. It has shown, that such a limit value is 8 - 10%, based on the relative reduction of the component volume within a cross section or over the cross section. Up to this limit, the stability reduction is acceptable and the resulting increased flexibility of the sound bar advantageous in terms of its vibration characteristics.
  • FIG. 1 shows in plan view a symbolically illustrated soundboard 10, which is part of a stringed instrument, in particular a piano or grand piano.
  • a web 12 - hereinafter called sound bridge - applied which is preferably done by gluing.
  • the web 12 extends in the example shown over a considerable distance on the top of the soundboard 10. It can be seen that the web 12 is not purely straight, but has some bends or curves.
  • the web is essentially the same width throughout its entire length. Its longitudinal extent is much larger than the width.
  • the web thus has a first web end 22 and a second web end 24. He points in the FIG. 1 with his top on the viewer and lies with his bottom (not visible) on the soundboard 10 on. His left side and his right side are referred to simplifying as longitudinal edges 13a and 13b. They run over the entire length of the web 12th
  • FIG. 2 is a cross-sectional view along the line AA ( FIG. 1 ).
  • a cross-section thus shown is thus a section which runs almost vertically with respect to both web sides or longitudinal flanks 13a, 13b.
  • the sound bar 12 has a bridge cap 14 on its upper side.
  • bridge pins 16 mounted here, not here lead shown strings.
  • the strings may be vibrated by a plurality of hammer heads (not shown) and their vibrational energy transmitted to the soundboard 10 via the sound bar 12.
  • the sound bar 12 has a length of about 150 cm, a height in the preferred embodiment - including the ridge cap 14 - of about 3.4 cm and a width of about 3.4 cm. It should be noted that the dimensions of sound bars can be quite different. This usually depends on which instrument types they are used in. In particular, the sound bridge length can be up to 250 cm.
  • the sound bar 12 has on both sides or longitudinal flanks 13a, 13b respectively a recess 20a and 20b, which are referred to below as flutes and described in more detail.
  • On the left side or on the first longitudinal flank 13a (referring to the illustration in FIG. 2 ) of the sound ridge 12 is the first groove 20a and on the right side or on the second longitudinal edge 13 b is the second groove 20b.
  • Both flutes 20 are formed and arranged in the preferred embodiment so that they are symmetrical to the vertical axis 21 of the illustrated cross-section.
  • Both flutes 20 have a circular-arc-like shape, along the section AA ( FIG. 1 ) has a radius r, which is 6 mm here.
  • the dimensions of the grooves 20 are varied along the sound bar 12 and in particular such that at lower frequencies more material and at higher frequencies less material is removed. That will be in the production realized in that the penetration depth of a cutting tool is changed in the blank of the sound bar 12.
  • the relative reduction in component volume across the cross-section varies between 5-8%.
  • the flutes 20 extend almost the entire length of the sound bar 12 along the longitudinal edges 13a, 13b. However, they end at a predetermined distance in front of the first web end 22 and before the second web end 24.
  • the fillets 20 run in the preferred embodiment to their ends out half-circle-like, which is essentially due to the milling process in their processing.
  • this area of the high treble is the distance between the sound bridge 12 and a (not shown) floor storage, so that edge on which the sound board 10 is in turn glued, the lowest.
  • the grooves 20a and 20b according to the invention are the only recesses in the two longitudinal flanks 13 and 13b of the sound bar 12 on the left or in the middle of the soundboard 10.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Stringed Musical Instruments (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
EP13707639.4A 2012-03-06 2013-03-06 Klavier oder flügel mit saiten und einem klangsteg Active EP2823476B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL13707639T PL2823476T3 (pl) 2012-03-06 2013-03-06 Pianino lub fortepian ze strunami i mostkiem wiolinowym
SI201331570T SI2823476T1 (sl) 2012-03-06 2013-03-06 Klavir ali koncertni klavir s strunami in kobilico

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012004235A DE102012004235A1 (de) 2012-03-06 2012-03-06 Klangsteg und Saiteninstrument
PCT/EP2013/054479 WO2013131944A1 (de) 2012-03-06 2013-03-06 Klavier oder flügel mit saiten und einem klangsteg

Publications (2)

Publication Number Publication Date
EP2823476A1 EP2823476A1 (de) 2015-01-14
EP2823476B1 true EP2823476B1 (de) 2019-06-12

Family

ID=47827213

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13707639.4A Active EP2823476B1 (de) 2012-03-06 2013-03-06 Klavier oder flügel mit saiten und einem klangsteg

Country Status (10)

Country Link
US (1) US9633629B2 (es)
EP (1) EP2823476B1 (es)
CN (1) CN104137177B (es)
DE (1) DE102012004235A1 (es)
DK (1) DK2823476T3 (es)
ES (1) ES2744258T3 (es)
PL (1) PL2823476T3 (es)
SI (1) SI2823476T1 (es)
TR (1) TR201910135T4 (es)
WO (1) WO2013131944A1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012004235A1 (de) 2012-03-06 2013-09-12 Vioga Gmbh Klangsteg und Saiteninstrument
CN106448619B (zh) * 2016-09-28 2023-07-21 嘉兴温克尔曼乐器有限公司 一种钢琴铁板

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3468207A (en) * 1965-12-29 1969-09-23 Nippon Musical Instruments Mfg Bridges for piano
CN201975055U (zh) * 2011-03-04 2011-09-14 晋东军 钢琴的弦码

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE326629C (de) * 1920-09-30 Otto Behr Klangsteg
DE506687C (de) 1930-09-08 Karl Fricke Resonanzbodensteg fuer Klavier oder Fluegel
GB197063A (en) * 1922-02-15 1923-05-10 Jesse George Jones Improvements in and relating to pianoforte bridges and the like
US1753389A (en) * 1922-08-21 1930-04-08 Schwechten Wilhelm Bridge for pianos
US1476014A (en) * 1922-12-02 1923-12-04 Jones Jesse George Bridge for pianofortes and like stringed musical instruments
DE418187C (de) * 1924-12-13 1925-09-03 Otto Kusel Steg fuer Streich- und andere Saiteninstrumente
US2071992A (en) * 1935-06-15 1937-02-23 United States Steel Corp Pianoforte
DE676912C (de) 1936-08-30 1939-06-14 Karl Fricke Resonanzboden mit gekruemmtem Saitensteg und einem Gegensteg fuer Klaviere, Fluegel u. dgl.
US2217021A (en) * 1938-11-14 1940-10-08 Story & Clark Piano Company Piano string plate construction
US2206650A (en) * 1938-11-19 1940-07-02 Wurlitzer Co Tone amplifier for pianos
AT220929B (de) * 1960-11-21 1962-04-25 Franz Holub Verstellbarer Steg für Streichinstrumente
DE2915959A1 (de) 1979-04-20 1980-10-23 Schimmel Pianofortefab Resonanzboden
DE3140929A1 (de) * 1980-10-20 1982-05-27 Georg 7841 Malsburg-Marzell Ignatius "schwingkoerper, insbesondere resonanzkoerper fuer klangerzeugungsgeraete
DE3929726A1 (de) 1989-09-07 1991-03-14 Schimmel Pianofortefab Musikinstrument, insbesondere klavier oder fluegel, mit saiten
NL9400169A (nl) * 1994-02-03 1995-09-01 Baat Cornelis J De Muziekinstrument voorzien van een klankbord.
DE19819851C2 (de) * 1998-05-05 2000-06-08 Fraunhofer Ges Forschung Klangkörper für ein Saiteninstrument
CN2388684Y (zh) * 1999-09-09 2000-07-19 张景贤 一种多层曲面板式钢琴码桥
DE202008005780U1 (de) * 2008-04-25 2008-07-10 Dresen, Burkhard, Dr.med. Streichinstrument der Violinfamilie mit asymmetrischem Steg und zusätzlichem Bassbalken auf dem Instrumentenboden
DE102012004235A1 (de) 2012-03-06 2013-09-12 Vioga Gmbh Klangsteg und Saiteninstrument

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3468207A (en) * 1965-12-29 1969-09-23 Nippon Musical Instruments Mfg Bridges for piano
CN201975055U (zh) * 2011-03-04 2011-09-14 晋东军 钢琴的弦码

Also Published As

Publication number Publication date
WO2013131944A1 (de) 2013-09-12
SI2823476T1 (sl) 2019-11-29
CN104137177B (zh) 2017-11-03
TR201910135T4 (tr) 2019-08-21
DE102012004235A1 (de) 2013-09-12
ES2744258T3 (es) 2020-02-24
US9633629B2 (en) 2017-04-25
EP2823476A1 (de) 2015-01-14
CN104137177A (zh) 2014-11-05
US20150047492A1 (en) 2015-02-19
DK2823476T3 (da) 2019-08-26
PL2823476T3 (pl) 2019-11-29

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