DE439237C - Wing mechanics - Google Patents

Wing mechanics

Info

Publication number
DE439237C
DE439237C DEW68629D DEW0068629D DE439237C DE 439237 C DE439237 C DE 439237C DE W68629 D DEW68629 D DE W68629D DE W0068629 D DEW0068629 D DE W0068629D DE 439237 C DE439237 C DE 439237C
Authority
DE
Germany
Prior art keywords
spring
pivot point
lever
repeater
adjusting screw
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.)
Expired
Application number
DEW68629D
Other languages
German (de)
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 DEW68629D priority Critical patent/DE439237C/en
Application granted granted Critical
Publication of DE439237C publication Critical patent/DE439237C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10CPIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C3/00Details or accessories
    • G10C3/16Actions
    • G10C3/24Repetition [tremolo] mechanisms
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10CPIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C3/00Details or accessories
    • G10C3/16Actions
    • G10C3/22Actions specially adapted for grand pianos

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Springs (AREA)

Description

Flügelmechanik. Die bekannte Repetitionsfeder, deren langes Ende auf die Stoßzunge wirkt, während ihr kurzes Ende von einer Stellschraube beeitiflußt wird, hat den Nachteil, daß die Spannkraft der Feder zu weit entfernt von der Hammerauflage auf dem Repetitionshebel auf diesen wirkt und. daß die Stellschraube sich in unmittelbarer Nähe des Angelpunktes dieser Feder befindet. Bei dieser bekannten Anordnung verändert sich infolge zu starker Pressung die Spannkraft der Feder sehr bald, wodurch die Repetition beeinträchtigt wird. -Diesem flbelstand hilft die Erfindung ab, indem sie den Angelpunkt der Feder in der Nähe des Drehpunktes des Repetitionshebels auf in dem der Hammerauflage entgegengesetzten Schenkel anordnet und das obere Federende so weit verlängert, daß durch eine im Repetitionshebel jenseits des Drehpunktes möglichst nahe der Hammerauflage gelagerte Stellschraube ein gutes Einstellen der Feder-, Spannung gewährleistet ist. Das richtige Längenverhältnis dieser oberen in- der Wiege liegenden Feder bürgt für eine gute Repetition und eine angenehme Spielart, da dieser obere Federteil mitspielt, ohne daß die Repetition, infolge zu starken Nachgehens der Feder aussetzt.Grand piano mechanics. The well-known repeater spring, the long end of which is on the jack acts while its short end flows by an adjusting screw has the disadvantage that the elastic force of the spring is too far away from the hammer support acts on the repeater lever and. that the set screw is in the immediate Located near the pivot point of this spring. Changed in this known arrangement as a result too much pressure increases the resilience of the spring soon, which affects the repetition. The invention helps this situation by placing the pivot point of the spring near the pivot point of the repeater lever arranged on in the leg opposite the hammer rest and the upper end of the spring extended so far that by one in the repeater lever beyond the fulcrum As close as possible to the hammer rest, the set screw allows good adjustment of the Spring, tension is guaranteed. The correct aspect ratio of this upper one The spring in the cradle guarantees a good repetition and a pleasant one Variation, since this upper spring part plays along without the repetition, as a result exposes the spring to excessive dragging.

Um die nachteilige bisher vorhandene Reibung der Feder am Repetitionshebel aufzuheben, ist in die an sich bekannte Stellschraube ein Konus eingebohrt, in den das Federende mit einer Spitze eingreift.To the disadvantageous previously existing friction of the spring on the repeater lever cancel, a cone is drilled into the known set screw, in the the end of the spring engages with a point.

In der Zeichnung ist die Erfindung in einem Ausführungsbeispiel in Seitenansicht dargestellt.In the drawing, the invention is shown in one embodiment in Side view shown.

In dem nahe dem Drehpunkt a des Repetitionshebels b gelegenen Angelpunkt c ist die Doppelfeder f im Hebel b' gelagert. Während das untere Federende f' in bekannter Weise auf die Stoßzunge g wirkt, ist das obere Federende f" über den Drehpunkt a hinaus verlängert und ruht mit seiner Spitze h in einer Aussparung oder kegeligen Bohrung der Stellschraube s.In the pivot point c located near the pivot point a of the repetition lever b, the double spring f is mounted in the lever b '. While the lower end of the spring f 'acts in a known manner on the jack g, the upper end of the spring f "is extended beyond the pivot point a and rests with its tip h in a recess or conical bore of the adjusting screw s.

Das Federende/' ist mit einer beliebigen Verstärkung d versehen, die in bekannter Weise durch eine geschlossene Schleife d gebildet sein kann. Diese auch durch eine offene Schleife o. dgl. zu erzielende Verstärkungseinrichtung dient erfindungsgemäß dazu, beim Einregulieren der Mechanik eine Grobeinstellung der Federspannung entsprechend der Schwere der vom Baß nach dem Diskant verjüngt zulaufenden Hämmer zu ermöglichen, während die Feineinstellung später durch die Stellschrauben erfolgt.The spring end / 'is provided with any reinforcement d that can be formed in a known manner by a closed loop d. These Also used by an open loop or the like. Reinforcing device to be achieved according to the invention, a coarse adjustment of the spring tension when regulating the mechanics according to the severity of the hammers tapering from the bass to the treble to allow, while the fine adjustment is made later by the set screws.

Claims (1)

PATENTANSPRUCH: Flügelmechanik mit einer Repetitionsfeder, deren langes Ende auf die Stoßzunge wirkt und deren kurzes -Ende von, einer Stellschraube beeinflußt wird, dadurch gekennzeichnet, daß der Angelpunkt (c) der Feder (f) in der Nähe des Drehpunktes (a) des Repetitionshebels (b) in dem der Hammerauflage entgegengesetzten Schenkel (b') liegt und das obere Federende so lang ist, daß es von einer jenseits des Drehpunktes (a) im Hebel (b) nahe der Hammerauflage angeordneten Stellschraube in bekannter Weise beeinflußt wird. - PATENT CLAIM: Wing mechanism with a repeater spring, the long end of which acts on the jack and the short end of which is influenced by an adjusting screw, characterized in that the pivot point (c) of the spring (f) is in the vicinity of the pivot point (a) of the repeater lever (b) in the leg (b ') opposite the hammer support and the upper end of the spring is so long that it is influenced in a known manner by an adjusting screw located on the other side of the pivot point (a) in the lever (b) near the hammer support. -
DEW68629D 1925-02-24 1925-02-24 Wing mechanics Expired DE439237C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW68629D DE439237C (en) 1925-02-24 1925-02-24 Wing mechanics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW68629D DE439237C (en) 1925-02-24 1925-02-24 Wing mechanics

Publications (1)

Publication Number Publication Date
DE439237C true DE439237C (en) 1927-01-06

Family

ID=7608144

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW68629D Expired DE439237C (en) 1925-02-24 1925-02-24 Wing mechanics

Country Status (1)

Country Link
DE (1) DE439237C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001069586A1 (en) * 2000-03-14 2001-09-20 Ronald Ernest Overs Grand piano action

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001069586A1 (en) * 2000-03-14 2001-09-20 Ronald Ernest Overs Grand piano action

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