EP0384837A1 - Pianodämpfermechanik - Google Patents

Pianodämpfermechanik Download PDF

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Publication number
EP0384837A1
EP0384837A1 EP90400479A EP90400479A EP0384837A1 EP 0384837 A1 EP0384837 A1 EP 0384837A1 EP 90400479 A EP90400479 A EP 90400479A EP 90400479 A EP90400479 A EP 90400479A EP 0384837 A1 EP0384837 A1 EP 0384837A1
Authority
EP
European Patent Office
Prior art keywords
key
damper
rod
hammer
mechanism according
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
Application number
EP90400479A
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English (en)
French (fr)
Other versions
EP0384837B1 (de
Inventor
Vincent Guyon
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0384837A1 publication Critical patent/EP0384837A1/de
Application granted granted Critical
Publication of EP0384837B1 publication Critical patent/EP0384837B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G10C3/16—Actions
    • G10C3/161—Actions specially adapted for upright pianos
    • 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
    • G10C1/02—General design of pianos, harpsichords, spinets or similar stringed musical instruments with one or more keyboards of upright 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
    • G10C3/16—Actions
    • G10C3/166—Actions for damping the strings
    • 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
    • G10C3/16—Actions
    • G10C3/24—Repetition [tremolo] mechanisms
    • 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
    • G10C3/26—Pedals or pedal mechanisms; Manually operated sound modification means

Definitions

  • the present invention provides a damper mechanism for upright piano, supported by supports independent of the hammer mechanism and located between the latter and the string, said damper mechanism being controlled by the key and comprising an elongated damper block arranged along the rope and held by a plate; characterized in that it comprises a rigid guide rod integral with said plate and oriented perpendicular to the rope, a block support pierced with a hole of complementary cross section of said guide rod and forming a guide for the latter, and members interposed between the key and the guide rod in order to move the latter back and forth in response to the tilting of the key .
  • the displacement of the damper block is carried out perpendicular to the rope, which avoids the disadvantages of a displacement in an arc.
  • the members interposed between the key and the guide rod of the damper block are free of return spring, so as not to affect the quality of the touch of the piano.
  • these members comprise a ballast rod which is substantially vertical and displaced upwards by the key and a return square between the top of the rod and the damper guide rod.
  • the device interposed between the key and the damper guide rod may consist of an electromagnetic, or hydraulic or pneumatic device.
  • the hammer actuation mechanism 10 illustrated in FIG. 1 in side view is associated with a key 12 and a cord 14 or group of cords of the same tone, arranged in a vertical plane, it being understood that the cord, or group of cords , may extend in this plane in a direction inclined to the vertical.
  • the key 12 extends substantially horizontally and pivots about a transverse axis 16 so as to have a manual operating end 18, located on the right in the figure, and an actuating end 20 on the left, that is to say - say on the side of the string plan.
  • the key Near its left end, the key has a push button cooperating with a lever, also called bridge 28, parallel to and above the key 12, articulated at its right end 30 when the figure is considered, that is to say its end remote from the plane of strings, on a transverse support 32 fixed to the frame of the piano.
  • the bridge 28 has a lower boss 34 lined with felt in contact with the push button 26 of the button 12.
  • the bridge 28 carries on the one hand an escape finger 36, articulated substantially at the end 38 of the bridge and generally oriented from bottom to top, which ends at its upper end with a terminal thrust surface 40; and on the other hand a repetition lever 42 articulated at 44 on the bridge and inclined in an upward direction to the left substantially perpendicular to the exhaust finger 36, so as to present an upper bearing face 46 situated at the same level as the thrust face 40 of the escape finger, and a stop end 48 lined with felt.
  • an escape finger 36 articulated substantially at the end 38 of the bridge and generally oriented from bottom to top, which ends at its upper end with a terminal thrust surface 40
  • a repetition lever 42 articulated at 44 on the bridge and inclined in an upward direction to the left substantially perpendicular to the exhaust finger 36, so as to present an upper bearing face 46 situated at the same level as the thrust face 40 of the escape finger, and a stop end 48 lined with felt.
  • the exhaust finger 36 has a heel or exhaust bracket 50 extending substantially horizontally beyond the end of the bridge 28.
  • the bridge 28 carries a first rear stop 52 against which the escape finger 36 rests under the action of a return member 54, and a second upper stop 56 against which rests the repetition lever 42 under the action of a lifting spring 58.
  • the spring and the return member can be independent, or form a combined assembly as illustrated: the spring 58 of the repeat lever 42 being fixed at one end to the repeat lever by means of an adjustment member 60, and having a hook-shaped distal end 62 which receives one end of a wire 54 fixed to the escape finger.
  • the adjustment of the stop positions of the escape finger and the repetition lever is ensured: for the exhaust finger, by adjusting a support member 64 fixed to the finger 36, and - for the repetition lever, by adjusting the stop 56 itself.
  • the easel 28 comprises between its articulation point 30 and that of the repetition lever 42, a catch 66 in the form of a vertical rod bent at its upper end 68 and having a rough surface 70 on its outer part, c that is to say its side opposite the plane of strings.
  • a hammer nut 72 articulated at 74 on a bed base 76 fixed to the frame extends on the side of the plane of strings extends to the right and according to an inclination substantially parallel to the repetition lever 42.
  • the nut 72 carries a hammer handle 78 directed upwards and ending with a conventional hammer 80, inclined with respect to the handle at an angle equal to the inclination of the string or group of strings to be struck by the hammer.
  • roller 82 lined with felt which rests both on the end support face 46 of the exhaust finger 36 and on the upper face 40 of the repetition lever 42.
  • the hammer nut 72 has an extension 73 which extends to the right and has a recess 84 crossed by the catcher 66, this recess having a surface 86 forming a countercatch, furnished with felt and intended to cooperate with the rough surface 70 of the catch 66.
  • the hammer nut 77 also comprises a housing receiving a counterweight 88 usually a lead counterweight, the mass of which is chosen so as to exert on the key 12, via the roller 82, the finger d exhaust 36 and bridge 28, a force identical to that which would be exerted by a hammer of the same number in a grand piano.
  • a rest bar 94 On the right and at a short distance from the handle 78 of the hammer, is mounted a rest bar 94, furnished with felt and fixed relative to the frame, intended to prevent the hammer 80 from exceeding a predetermined position after a rebound on the rope 14 .
  • a damper mechanism 100 composed of a felt block 102 of conventional shape and actuated by a device ensuring a lifting of the felt block parallel to the plane of ropes 14.
  • the actuating device comprises a vertical control rod 104 weighted and guided by eyelets 106 fixed on supports 108 fixed relative to the frame.
  • the control rod 104 ends at its lower part with a ballast 110 situated above the left end 20 of the button 12 and at its upper part by a hook 112 or articulation cooperating with a return square 114 articulated on a block 116 damper holder fixedly mounted on a fixing support 118, it being observed that the supports 108 and the support 118 are independent of the supports of the hammer actuation mechanism.
  • the position of the ballast 110 on the control rod 104 may be different from that which has been shown and described.
  • the ballast can be placed in the vicinity of the upper end of the rod, a short distance below the joint 112.
  • the rod may be extended to the underside of the keyboard base and the ballast fixed below the ends of the keys.
  • the rod will then carry an adjustable button called “pilot" above the actuation end of the key and attacked in lifting by a spoon fixed on the key.
  • the damper felt 102 is fixed to a plate 120 from which protrudes a guide rod 122 perpendicular to the felt and to its plate.
  • the support block 116 fixed to the fixing bar 118 has a horizontal bore 124 in which the guide rod 122 of the damper slides in approach or distance from the string plane, so that the damper felt 102 remains parallel to the cords 14.
  • the guide rod 122 is essentially cylindrical and includes anti-rotation means in order to avoid misalignment of the damper felt 102 with respect to the cords 14.
  • these anti-rotation means consist of a cutout 126 of the guide rod up to half thickness over part of its length, the bore 124 having a complementary profile in a half moon shape.
  • the return square 114 pivotally mounted on the support block comprises a substantially vertical arm 128 passing through a lumen 130 of the guide rod, and a substantially horizontal arm 132 at the end of which the vertical control rod 104 is suspended.
  • the damper felt 102 is not usually placed vertically above the key 12, but on the contrary offset towards the front or the back of the plane of the figure, and where the support block 116 is more distant from the string plane 14 as the thrust spoon 134, the control rod is bent at 136 so that its upper end at the level of the joint 112 is offset by the necessary distance in both directions.
  • the rod 104 In order to move back the damper 102 by action on the "strong" pedal, the rod 104 carries a lug 138 projecting to the right and a control bar 140 with side spout 142 is pivotally mounted around its axis on the machine frame, via an appropriate mechanism connected to the pedal.
  • the control bar 140 pivots from a rest position, illustrated in the figure, in which the lateral spout 142 of the control bar is oriented downwards and a working position after pivoting a quarter turn in the direction clockwise, in which the lateral beak 142 lifts the lug 138 from the control rod 104, which moves the damper felt 102 away from the strings regardless of the position of the key.
  • the support block 116 of the damper is mounted on its support 118 by means of an arm 144 with the ability to adjust in several directions, in particular in order to adjust the parallelism of the damper felt 102 relative to the plane of strings 14 and its lateral position with respect to the strings.
  • the mounting arm 144 will be made of deformable metal wire in order to allow these adjustments by simple deformation of the wire.
  • damper mechanism 100 is independent of the hammer control mechanism 10, which simplifies its manufacture, assembly, mounting on the piano and its settings.
  • damper felts 102 move away and approach the strings while remaining parallel to the strings, as is the case in a grand piano.
  • the detachment and the resumption of contact with the ropes is carried out simply, over the entire length of the felt, and over a very short stroke.
  • the damper mechanism has no spring, but a simple ballast, which ensures a reaction to touch identical to that of a grand piano damper mechanism, free of elastic effect.
  • the ballast 110 can be eliminated and the damper felt 102 can be returned using a spring, for example threaded on the guide rod 122, between the plate 120 and the support block 116.
  • damper mechanism being independent of the hammer control mechanism 10, it could advantageously be provided that the latter is mounted with lateral translation faculty, so-called “transposition” mounting, by means of which the sound volume can be attenuated by action on the "soft” pedal.
  • the hammer 80 only strikes a part of the strings of each group 14.
  • the thrust spoon 134 at the end of the key 12 is located under the underside of the ballast 110, which has a width sufficient to allow such lateral translation of the key.
  • the hammer actuation mechanism works as follows:
  • the key 12 is pressed, by its right end 18, the left end 20 is raised, which makes the bridge 28 pivot upwards the escapement finger 36 and the repetition lever 42 clockwise around the easel axis 30.
  • the rise of the escape finger 36 is transmitted to the hammer nut 72 via the roller 82, so that the hammer nut 72, the handle 78 and the hammer 80 pivot together counterclockwise around the axis 74 of the nut, taking a certain momentum so that the hammer 80 continues its stroke until it strikes the cord 14 and returns under the combined effect of the rebound and the return torque exerted by the counterweight 88.
  • the stop end 48 of the repetition lever 42 comes into contact with its repetition stopper 92, which prevents the movement of the repetition lever from continuing.
  • the spoon 134 lifts the ballast 110 and therefore the control rod 104 of damper.
  • the rise of the latter causes the damper bracket 114 to tip over and the vertical arm 128 of the bracket pulls the guide rod 122 of the damper to the right, thus moving the damper felt 102 away from the strings 14.
  • the separation of the felt is therefore straightforward and requires only a very short distance.
  • the roller 82 more or less depresses the repetition lever 42, against its lifting spring 58 until the hammer 80 and its nut 72 come to rest in a position back.
  • the mechanism works as follows: in the starting situation, the right end 18 of the key is pressed and the hammer nut 72 returned to its return position described above.
  • the key 12 is slightly released, the right end 18 of which is slightly raised, while the left end 20 sinks slightly; it follows that the bridge 28 rocks slightly towards the base while accompanying the pressing of the key; the catch 66, 70 carried by the easel 28 rocks to the left, which moves it away from the counter-catch 86 of the hammer nut 72; therefore, the lifting spring 58 of the repetition lever 42 pushes the latter upwards together with the hammer nut 72, until the repetition lever 42 comes into contact with the repetition stopper 92, the lever repetition 42 and the hammer nut 80 then occupy the same return position as that which they would have occupied after a first strike at low intensity.
  • the note can then be replayed, without having to completely release the 12 key.
  • the tilting direction of the bridge is reversed - the hammer handle is oriented substantially vertically instead of being oriented substantially horizontally and the hammer nut carries a counterweight - the damper mechanism includes a return square in order to take account of the vertical orientation of the string plane.
  • damper mechanism can be adapted to most upright pianos, fitted with traditional hammer mechanisms.
  • the vertical arm 128 ′ the return square 114 ′ is fixed on its horizontal arm 132 ′ and has a curved shape so as to ensure better transmission of the movement between the square and the rod guide 122 ′ of the damper.
  • a connecting rod is provided between the vertical arm of the return bracket and the guide rod of the damper.
  • a sheathed cable control can be used.
  • the members interposed between the key and the damper guide rod will be free of return springs so as not to affect the quality of the piano's touch.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Vibration Prevention Devices (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Glass Compositions (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Auxiliary Devices For Music (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
EP90400479A 1989-02-22 1990-02-21 Pianodämpfermechanik Expired - Lifetime EP0384837B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8902309 1989-02-22
FR8902309A FR2643489B1 (fr) 1989-02-22 1989-02-22 Mecanisme pour piano droit

Publications (2)

Publication Number Publication Date
EP0384837A1 true EP0384837A1 (de) 1990-08-29
EP0384837B1 EP0384837B1 (de) 1994-11-09

Family

ID=9379022

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90400479A Expired - Lifetime EP0384837B1 (de) 1989-02-22 1990-02-21 Pianodämpfermechanik

Country Status (5)

Country Link
US (1) US5022302A (de)
EP (1) EP0384837B1 (de)
AT (1) ATE114072T1 (de)
DE (1) DE69013944D1 (de)
FR (1) FR2643489B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20150551A1 (it) * 2015-04-16 2016-10-16 Bafunno Pasquale Dispositivo a doppia ripetizione per pianoforti verticali

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19959624B4 (de) * 1999-12-10 2005-04-21 Carl Sauter Pianofortemanufaktur Gmbh & Co. Kg Tonhaltevorrichtung für ein Saiten aufweisendes Tastenistrument
US6632988B1 (en) 2000-04-04 2003-10-14 Steinway Musical Instruments, Inc. Damper adjustment device
JP3598942B2 (ja) * 2000-05-01 2004-12-08 ヤマハ株式会社 ピアノのダンパー機構
JP3835538B2 (ja) * 2002-03-22 2006-10-18 ヤマハ株式会社 消音ピアノのハンマーシャンクストッパ装置
JP5488985B2 (ja) * 2010-03-25 2014-05-14 ヤマハ株式会社 アップライトピアノ型アクション
IT1404973B1 (it) * 2010-06-11 2013-12-09 Pancino Pianoforte verticale, ed in particolare la meccanica di tale pianoforte
ITVR20100159A1 (it) * 2010-08-03 2012-02-04 Pasquale Bafunno Unita' di produzione del suono per un pianoforte verticale e pianoforte verticale dotato di una pluralita' di tali unita' di produzione del suono
US8614382B2 (en) * 2012-03-21 2013-12-24 Wessell, Nickel & Gross Damper action for upright piano with sostenuto spring tab using tension from the damper spring
WO2014011640A1 (en) * 2012-07-10 2014-01-16 Fandrich Darrell Gerard Enhanced vertical piano action system and method
JP6408757B2 (ja) * 2013-06-27 2018-10-17 株式会社河合楽器製作所 ピアノアクション
JP6024996B2 (ja) * 2014-03-20 2016-11-16 カシオ計算機株式会社 鍵盤装置および鍵盤楽器
JP6857327B2 (ja) * 2017-03-17 2021-04-14 カシオ計算機株式会社 鍵盤装置および鍵盤楽器
SI25534A (sl) * 2017-10-24 2019-04-30 Antun Merkoci Naprava in postopek za pridušitev alikvotnih tonov
JP7220600B2 (ja) * 2019-03-20 2023-02-10 株式会社河合楽器製作所 アップライト型鍵盤楽器

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Publication number Priority date Publication date Assignee Title
DE26416C (de) * A. LEXOW in Berlin Neuerung an Dämpfern für Pianinos
DE97885C (de) *
DE121945C (de) *
GB226616A (en) * 1923-11-05 1925-01-08 Reginald Arnold Axtens Improvements in or connected with pianoforte actions
GB461337A (en) * 1936-09-12 1937-02-15 Dennis Lionel Skerratt Improvements to pianofortes

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US204752A (en) * 1878-06-11 Improvement in piano-forte actions
DE10729C (de) * A. PENZLIN in Berlin SO., Reichenbergerstr. 58 Regulirungs-Vorrichtung an Pianino-Oberdämpfungen
DE107352C (de) *
US426332A (en) * 1890-04-22 Ferdinand schaaf
US179029A (en) * 1876-06-20 Improvement in upright-piano actions
DE74725C (de) * F. LINDNER in Dresden, Güterbahnhofstrafse Repetitionsmechanik für Pianinos
DE73461C (de) * F. HUHN in Berlin S.O., Skalitzerstr. 25 III Repetitionsmechanik für Pianino's mit zweifacher Auslösung
US896763A (en) * 1907-10-15 1908-08-25 Fridolin Schimmel Piano-action.
US1104282A (en) * 1910-02-25 1914-07-21 Melvin L Severy Electromechanical action for musical instruments.
FR638797A (fr) * 1927-08-03 1928-06-02 Perfectionnements dans les mécaniques de pianos
GB332328A (en) * 1929-01-11 1930-07-24 Julius Carl Hofmann Improvements relating to upright pianos
FR707266A (fr) * 1930-12-08 1931-07-06 Mécanique de piano à cordes horizontales ou verticales
FR1334396A (fr) * 1962-06-12 1963-08-09 Piano perfectionné
FR1453851A (fr) * 1965-03-26 1966-07-22 Piano
FR1568766A (de) * 1967-09-25 1969-05-30
FR1556671A (de) * 1968-03-08 1969-02-07
DE2155211A1 (de) * 1971-11-06 1973-05-10 Richard Andriolo Klaviertastenmechanik
JPS5094915A (de) * 1973-11-14 1975-07-29
SE391052B (sv) * 1974-10-14 1977-01-31 Musikind Forskning Mifo Ab Anordning vid pianomekanism
JPS58108496A (ja) * 1981-07-22 1983-06-28 株式会社日立製作所 放射性希ガスの分離・回収法及び装置
IT1211107B (it) * 1981-09-16 1989-09-29 Pasquale Bafunno Meccanica perfezionata a doppio scappamento per pianoforti verticali.
FR2542120B1 (fr) * 1983-03-01 1985-11-15 Kotepanos Theodore Clavier personnel adaptable pour piano
KR910008095B1 (ko) * 1984-05-15 1991-10-07 니뽄 가끼 세이즈 가부시끼가이샤 그랜드피아노의머플러장치
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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE26416C (de) * A. LEXOW in Berlin Neuerung an Dämpfern für Pianinos
DE97885C (de) *
DE121945C (de) *
GB226616A (en) * 1923-11-05 1925-01-08 Reginald Arnold Axtens Improvements in or connected with pianoforte actions
GB461337A (en) * 1936-09-12 1937-02-15 Dennis Lionel Skerratt Improvements to pianofortes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20150551A1 (it) * 2015-04-16 2016-10-16 Bafunno Pasquale Dispositivo a doppia ripetizione per pianoforti verticali
WO2016166589A1 (en) * 2015-04-16 2016-10-20 Pasquale Bafunno Double repetition device for upright pianos

Also Published As

Publication number Publication date
ATE114072T1 (de) 1994-11-15
FR2643489A1 (fr) 1990-08-24
FR2643489B1 (fr) 1993-10-15
US5022302A (en) 1991-06-11
EP0384837B1 (de) 1994-11-09
DE69013944D1 (de) 1994-12-15

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