EP0229746A2 - Rückziehgerät für ein Kleinklavier und Mittel zu seiner Anwendung - Google Patents

Rückziehgerät für ein Kleinklavier und Mittel zu seiner Anwendung Download PDF

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Publication number
EP0229746A2
EP0229746A2 EP87810035A EP87810035A EP0229746A2 EP 0229746 A2 EP0229746 A2 EP 0229746A2 EP 87810035 A EP87810035 A EP 87810035A EP 87810035 A EP87810035 A EP 87810035A EP 0229746 A2 EP0229746 A2 EP 0229746A2
Authority
EP
European Patent Office
Prior art keywords
pusher
hammer
jack
bar
handle
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
EP87810035A
Other languages
English (en)
French (fr)
Other versions
EP0229746B1 (de
EP0229746A3 (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 AT87810035T priority Critical patent/ATE89093T1/de
Publication of EP0229746A2 publication Critical patent/EP0229746A2/de
Publication of EP0229746A3 publication Critical patent/EP0229746A3/fr
Application granted granted Critical
Publication of EP0229746B1 publication Critical patent/EP0229746B1/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
    • G10C3/18—Hammers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C9/00—Methods, tools or materials specially adapted for the manufacture or maintenance of musical instruments covered by this subclass

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.
  • Various unsuccessful attempts have been made to obtain from the upright piano a result analogous to that achieved with the grand piano.
  • the present inventions aim to provide an exhaust device for upright piano, as well as means for implementing such a device, which allows successive strikes fast rope with very small amplitude movements, when the key is in the low position.
  • the device which is the subject of the invention comprises a second exhaust pusher 14.
  • This pusher is fixed, directly or by means of other parts, to the catcher.
  • the pusher extends in the direction of the hammer handle and its tip 15 is at a distance from the hammer handle which is calculated from so that the handle comes to rest against this end at about the moment when the counter-catcher 10 comes to press on the catcher 9. Therefore, even while only slightly raising the key, and even then the amplitude of this movement is insufficient to replace the exhaust pusher 2 under the nut, the second exhaust pusher 14 can act on the hammer handle under the effect of a new pressure on the key.
  • the second exhaust pusher can be rigidly attached to the catcher, in which case it mainly acts as a stop. To make it a true exhaust valve, it should be allowed to tilt so that its end leaves the contact of the handle of the hammer at the end of the stroke, in the same way as the first pusher leaves at the end of its stroke its support under the nut to let the hammer finish its course with its only momentum.
  • the second pusher is mounted on a pin 16 which is itself fixed on the catcher.
  • the axis 16 is a part of a rod 17 which allows attachment to the catcher by means of a clamping piece 18.
  • a stop 19 against which the body of the second pusher abuts.
  • a stop cushion 20 dampens the contact with the stop 19.
  • the height of this stop is adjustable by simply twisting the rod 17.
  • the height of the stop determines the height at which s stop the tip 15 which meets the handle of the hammer.
  • the angle formed by the straight line connecting the axis 16 and the tip 15, on the one hand, and the axis of the hammer handle, on the other hand is approximately straight.
  • the second pusher has a tip 21. This tip 21, like the tip 15, is provided with a felt roller which softens the contact.
  • a trigger stop 22 is fixed on a non-movable part of the piano, on the path that the tip 21 must travel.
  • the stop is placed at an adjustable height. This height is calculated so that the end 21 of the second pusher comes to apply at the end of the race against this stop and slides against it.
  • the second pusher switches around the axis 16 and the tip 15 rises, leaving the handle of the hammer.
  • the second pusher leaves contact with the handle of the hammer at the end of the race. It is enough to slightly release the key so that the second pusher descends, under the action of a spring 24, and is again ready to push back the handle of the hammer, even before the first pusher has returned under the nut. It suffices that the second pusher moves back by the small distance X for the tip 15 to descend again by traversing the distance Y.
  • the length of the second plunger is adjustable: to shorten it, it suffices to push the rod, preferably metallic, which forms the arm which extends in the direction of the hammer handle, into the body of the plunger, which is preferably in wood; traction, on the contrary, causes elongation. It is also possible to fix on the handle of the hammer one or more pieces at the height where the tip 15 of the pusher meets the handle. This is also a way of shortening the distance between the tip 15 of the hammer handle.
  • the stop 22 is a bent rod which is fixed to the celestial bar. This rod is in the same vertical plane as the path of the second pusher. Its lower part, which comes into contact with the tip 21 when the latter is at the end of its travel, is approximately horizontal.
  • the bent rod is preferably inserted into a wooden bar 23.
  • This bar preferably extends over the entire length of the piano and carries all of the angled trigger rods.
  • the fixing of the bar 23 to the celestial bar is done simply by means of an adhesive strip.
  • the height of the angled trigger rod 22 is adjusted by pulling or pushing it down or up, that is to say by pushing it more or less deeply into the bar 23.
  • the stop 22 is a button, similar to the exhaust button.
  • This button is fixed by a screw in a bar 23.
  • the bar 23 is no longer attached here to the celestial bar; it is at the center bar, for example via crosspieces which are not shown in the drawing.
  • Such a construction makes it possible to remove the celestial bar without removing the bar 23, and thus to easily adjust the height of the buttons by means of the screws.
  • the role of the celestial bar is reduced: on the one hand it is not used for fixing the trigger stop, and, on the other hand, it is no longer essential to serve as a fulcrum with a hammer when the main exhaust device is lifted, since the second exhaust pusher 14 is sufficient to fulfill this role.
  • the celestial bar is therefore only a secondary support point and serves mainly as a support for the soft pedal and as a reinforcement and stabilization bar for the entire piano. It may be advantageous to make it thinner, to place it higher (in order to make it easier to access the heads of the stopper adjustment screws) and to fix it by means of a device which makes it easily removable, in view to facilitate adjustment.
  • stops in the form of bent bars with a bar 23 which is not fixed to the celestial bar.
  • the trigger stop 22 is omitted, and the second pusher 14 is simply a stop rocking freely on the axis 16. Such a movable stop already achieves the desired result, but in a less satisfactory.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Stringed Musical Instruments (AREA)
  • Massaging Devices (AREA)
  • Insulators (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Projection Apparatus (AREA)
EP87810035A 1986-01-17 1987-01-19 Rückziehgerät für ein Kleinklavier und Mittel zu seiner Anwendung Expired - Lifetime EP0229746B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87810035T ATE89093T1 (de) 1986-01-17 1987-01-19 Rueckziehgeraet fuer ein kleinklavier und mittel zu seiner anwendung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH17586 1986-01-17
CH175/86 1986-01-17

Publications (3)

Publication Number Publication Date
EP0229746A2 true EP0229746A2 (de) 1987-07-22
EP0229746A3 EP0229746A3 (en) 1989-03-08
EP0229746B1 EP0229746B1 (de) 1993-05-05

Family

ID=4180973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87810035A Expired - Lifetime EP0229746B1 (de) 1986-01-17 1987-01-19 Rückziehgerät für ein Kleinklavier und Mittel zu seiner Anwendung

Country Status (5)

Country Link
EP (1) EP0229746B1 (de)
AT (1) ATE89093T1 (de)
DE (2) DE3785680T2 (de)
ES (1) ES2014214A4 (de)
GR (1) GR900300103T1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993003477A1 (en) * 1991-08-01 1993-02-18 Vladislav Vladimirovich Volkov Piano key mechanism
EP0585798A2 (de) * 1992-08-31 1994-03-09 Yamaha Corporation Aufrechtstehendes Klavier mit Tastemechanik ansprechend auf Wiederholung ohne doppelte Anschlag dazu und Schallverlust
DE4414109A1 (de) * 1994-04-22 1995-10-26 Helmut Karl Repetitierende Klaviermechanik
CN111531352A (zh) * 2020-04-14 2020-08-14 陈忠 一种二胡琴筒旋转式压条装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE123696C (de) *
DE51541C (de) * H. L. HONE in Lexington, Kentucky Repititions-Mechanik für Pianofortes
US1599743A (en) * 1923-10-01 1926-09-14 Carnes John Wilson Piano action

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE123696C (de) *
DE51541C (de) * H. L. HONE in Lexington, Kentucky Repititions-Mechanik für Pianofortes
US1599743A (en) * 1923-10-01 1926-09-14 Carnes John Wilson Piano action

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993003477A1 (en) * 1991-08-01 1993-02-18 Vladislav Vladimirovich Volkov Piano key mechanism
EP0585798A2 (de) * 1992-08-31 1994-03-09 Yamaha Corporation Aufrechtstehendes Klavier mit Tastemechanik ansprechend auf Wiederholung ohne doppelte Anschlag dazu und Schallverlust
EP0585798A3 (de) * 1992-08-31 1995-03-15 Yamaha Corp Aufrechtstehendes Klavier mit Tastemechanik ansprechend auf Wiederholung ohne doppelte Anschlag dazu und Schallverlust.
DE4414109A1 (de) * 1994-04-22 1995-10-26 Helmut Karl Repetitierende Klaviermechanik
CN111531352A (zh) * 2020-04-14 2020-08-14 陈忠 一种二胡琴筒旋转式压条装置

Also Published As

Publication number Publication date
DE3785680D1 (de) 1993-06-09
ATE89093T1 (de) 1993-05-15
ES2014214A4 (es) 1990-07-01
DE229746T1 (de) 1990-09-06
EP0229746B1 (de) 1993-05-05
GR900300103T1 (en) 1991-09-27
EP0229746A3 (en) 1989-03-08
DE3785680T2 (de) 1993-11-11

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