EP0284558A2 - Auslösungsmechanik für Klaviere - Google Patents

Auslösungsmechanik für Klaviere Download PDF

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Publication number
EP0284558A2
EP0284558A2 EP88810150A EP88810150A EP0284558A2 EP 0284558 A2 EP0284558 A2 EP 0284558A2 EP 88810150 A EP88810150 A EP 88810150A EP 88810150 A EP88810150 A EP 88810150A EP 0284558 A2 EP0284558 A2 EP 0284558A2
Authority
EP
European Patent Office
Prior art keywords
lever
exhaust
recharging
button
pusher
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
EP88810150A
Other languages
English (en)
French (fr)
Other versions
EP0284558B1 (de
EP0284558A3 (en
Inventor
Fernand Kummer
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT88810150T priority Critical patent/ATE88826T1/de
Publication of EP0284558A2 publication Critical patent/EP0284558A2/de
Publication of EP0284558A3 publication Critical patent/EP0284558A3/fr
Application granted granted Critical
Publication of EP0284558B1 publication Critical patent/EP0284558B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • G10C3/00—Details or accessories
    • G10C3/16—Actions
    • G10C3/24—Repetition [tremolo] mechanisms

Definitions

  • the upright piano has, compared to the grand piano, the disadvantage of not allowing, when the key is in the low position, after the hammer strikes the string, a new strike with a movement of small amplitude. This is particularly troublesome, for example, when it is necessary to perform trills, especially in "pianissimo".
  • the grand piano on the contrary allows such successions of strikes even when the key is in the low position, with movements of very low amplitude.
  • This advantage of the grand piano is due to its double escapement mechanism. Simpler, the mechanism of the upright piano has only one exhaust.
  • the present invention aims to provide an exhaust device for upright piano, which allows rapid successive strikes of the string with movements of very small amplitude, when the button is in the down position.
  • the device which is the subject of the invention comprises a recharging button 14.
  • the exhaust lever 7 is extended by a recharging lever 15, the end of which is provided with a felt roller 16.
  • the length of the recharging lever 15 is such that, at rest, the felt roller 16 comes into contact with the refill button 14.
  • This button is fixed to a bar 17, preferably in wood, using a threaded tiger. This threaded rod makes it possible to adjust the height of the button so that contact with the felt roller 16 is made at the appropriate time.
  • the bridge is pushed upwards, carrying with it the pusher 2 and the exhaust lever 7.
  • the exhaust pusher 2 is at the end of its travel, the exhaust lever 7 abuts on the exhaust button 8; the exhaust pusher swings around the axis of the exhaust fork, the end 13 of the pusher slides under the nut.
  • This tilting movement also extends to the recharging lever 15, and it stops when the wheel 16 abuts against the recharging button 14.
  • the bridge descends, carrying with it the pusher.
  • the roller 16 being blocked at the height of the recharge button, this downward movement causes the assembly formed by the pusher, the exhaust lever and the recharge lever to tilt in the opposite direction.
  • the end 13 of the exhaust pusher slides under the nut and returns to place itself in the starting position.
  • this recharging movement will take place the sooner the higher the position of the recharging button. It is easy to place this button at a height such that the device is again in a condition to restart the hammer towards the string already after a very short upward movement of the key. It is enough to slightly release the key, after being pressed, to be able to restart the hammer towards the string by pressing the key again.
  • the optimal setting of the device is that in which the wheel 16 abuts on the button 14 just when the catcher receives the counter-catcher.
  • the recharging lever 15 is a steel rod pressed into the exhaust lever 7, which is itself made of wood.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Amplifiers (AREA)
  • Liquid Crystal Substances (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Reciprocating Pumps (AREA)
  • Paper (AREA)
  • Stringed Musical Instruments (AREA)
EP88810150A 1987-03-18 1988-03-10 Auslösungsmechanik für Klaviere Expired - Lifetime EP0284558B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88810150T ATE88826T1 (de) 1987-03-18 1988-03-10 Ausloesungsmechanik fuer klaviere.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1019/87A CH670911A5 (de) 1987-03-18 1987-03-18
CH1019/87 1987-03-18

Publications (3)

Publication Number Publication Date
EP0284558A2 true EP0284558A2 (de) 1988-09-28
EP0284558A3 EP0284558A3 (en) 1989-07-12
EP0284558B1 EP0284558B1 (de) 1993-04-28

Family

ID=4200549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88810150A Expired - Lifetime EP0284558B1 (de) 1987-03-18 1988-03-10 Auslösungsmechanik für Klaviere

Country Status (5)

Country Link
US (1) US4840101A (de)
EP (1) EP0284558B1 (de)
AT (1) ATE88826T1 (de)
CH (1) CH670911A5 (de)
DE (2) DE284558T1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4414100A1 (de) * 1994-04-22 1995-10-26 Helmut Karl Übertragungsmechanismus für die Dämpfung von aufrechten Hammerinstrumenten II

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3942456A1 (de) * 1989-12-22 1991-06-27 Steiner Ernst Tastengitarre
US5763799A (en) * 1996-10-24 1998-06-09 Baldwin Piano & Organ Co., Inc. Simulated escapement apparatus for electronic keyboard
BR9901823A (pt) * 1999-04-14 2000-10-31 Djalma Pacheco De Jun Carvalho Dispositivo de dupla repetição nos pianos verticais e de acrécimo de resistência ao toque em teclados de pianos verticias
JP5445959B2 (ja) * 2010-03-25 2014-03-19 ヤマハ株式会社 アップライトピアノ型アクション
US8735699B2 (en) * 2012-01-19 2014-05-27 Kirk Burgett Main action rail for upright piano with front-accessible whippen flange screw
US8937235B2 (en) 2012-04-20 2015-01-20 Christopher Richard Rawson Professional upright piano action

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE58257C (de) * BERDUX in Heilbronn Repetitionsmechanik für Pianinos
DE89748C (de) *
GB190623539A (en) * 1906-10-23 1907-10-17 Jeffrey James Bruer Improvements in or in connection with Pianoforte Actions.
US1586547A (en) * 1919-11-19 1926-06-01 Eastwood Richard Key action of upright pianofortes
GB169021A (en) * 1920-06-22 1921-09-22 Richard Eastwood Improvements in repetition actions for pianos
US2835157A (en) * 1956-04-18 1958-05-20 Wilbur W Waters Upright piano action

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4414100A1 (de) * 1994-04-22 1995-10-26 Helmut Karl Übertragungsmechanismus für die Dämpfung von aufrechten Hammerinstrumenten II

Also Published As

Publication number Publication date
EP0284558B1 (de) 1993-04-28
US4840101A (en) 1989-06-20
CH670911A5 (de) 1989-07-14
EP0284558A3 (en) 1989-07-12
ATE88826T1 (de) 1993-05-15
DE284558T1 (de) 1990-09-06
DE3880537D1 (de) 1993-06-03

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