EP0270966A2 - Clavier pour un orgue électronique - Google Patents

Clavier pour un orgue électronique Download PDF

Info

Publication number
EP0270966A2
EP0270966A2 EP87117656A EP87117656A EP0270966A2 EP 0270966 A2 EP0270966 A2 EP 0270966A2 EP 87117656 A EP87117656 A EP 87117656A EP 87117656 A EP87117656 A EP 87117656A EP 0270966 A2 EP0270966 A2 EP 0270966A2
Authority
EP
European Patent Office
Prior art keywords
reaction lever
plunger
reaction
rotation
arm
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
EP87117656A
Other languages
German (de)
English (en)
Other versions
EP0270966B1 (fr
EP0270966A3 (en
Inventor
Reinhard Franz
Walfried Dost
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.)
FATAR Srl
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 AT87117656T priority Critical patent/ATE88591T1/de
Publication of EP0270966A2 publication Critical patent/EP0270966A2/fr
Publication of EP0270966A3 publication Critical patent/EP0270966A3/de
Application granted granted Critical
Publication of EP0270966B1 publication Critical patent/EP0270966B1/fr
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
    • G10C3/12—Keyboards; Keys
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/32—Constructional details
    • G10H1/34—Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments
    • G10H1/344—Structural association with individual keys
    • G10H1/346—Keys with an arrangement for simulating the feeling of a piano key, e.g. using counterweights, springs, cams

Definitions

  • the invention relates to a keyboard for an electronic organ with piano effect, in which each key is pivotally mounted against spring force about a first horizontal axis of rotation and via a plunger attached to the key when the key is pressed against a control cam on a second horizontal axis of rotation swivels multi-arm reaction lever and swivels this while moving the control curve first against a large and then against a small reaction force from a first end position to a second end position.
  • the reaction lever In order to simulate the touch behavior of a piano keyboard for the player of such an organ when choosing the piano effect, the reaction lever is in a known keyboard of the generic type (DE-AS 24 26 016) by eline plunger rigidly attached to the key against the force of one with her a leg on the first arm of the reaction lever torsion spring pivoted as soon as the plunger comes into contact with the control curve attached to this arm. From the beginning, only one component of the force with which the button is actuated is converted into the pivoting movement of the reaction lever. In addition, unlike conventional piano mechanics, the reaction lever has only a small mass. To have sufficiently high reaction forces through the reaction lever on the button To allow their actuation to be effective, a high return spring force and correspondingly complex return spring are required. However, the reaction force is independent of the acceleration (change in speed) with which the key is struck.
  • the invention has for its object to provide a keyboard of the generic type, in which the dynamic behavior of each key is simulated when actuated with simple means, but higher accuracy than a classic piano mechanics.
  • this object is achieved in that the plunger is articulated on the key and in the first end position of the key lies with its one long side in the path of a first arm of the reaction lever and with its free end is perpendicular to one end of the control curve which extends from its plunger system point over a sloping arc in the actuating direction of the plunger, that a second arm of the reaction lever has an additional mass which exerts an inertial torque on the reaction lever in the direction of the first end position, and that the distance of the Ram contact point from the axis of rotation of the reaction lever is significantly smaller than the distance of the center of gravity of the additional mass from this axis of rotation.
  • the second lever arm Shortly after pressing the button, the second lever arm causes the tappet to pivot, so that its force is no longer directed perpendicularly to the control cam (ie to a tangent in the tappet contact point of the control cam), but rather the tappet begins to move along the control cam with the consequence that only one component of the tappet force is effective on the control cam or the reaction lever arm carrying the control cam.
  • the distance of the plunger from the axis of rotation of the reaction lever increases, and the reaction force of the reaction lever suddenly decreases accordingly. Then the key is very easy to press - in accordance with classical piano mechanics.
  • the plunger can therefore be designed simply as a straight rod, without an additional lever arm as in the conventional jack of classical piano mechanics and without its release man with which the lever arm of the jack comes into contact, since the second reaction lever arm takes over the release function.
  • an adjusting weight piece is displaceably mounted along a reaction lever arm, the torque of which counteracts the inertia torque of the additional mass about the axis of rotation of the reaction lever.
  • the second reaction lever arm has a cushion for resting on the free end of the plunger near the second end position.
  • the plunger simultaneously takes over the function of the catcher of the classical piano mechanics and the first reaction lever arm the function of the classic counter catcher, without a counter catcher handle being provided on the reaction lever.
  • the reaction lever can be repeated very quickly from the position in which it rests with its cushion on the free end of the plunger, for example in order to play a tremolo.
  • At least one of the contact surfaces of the control cam and tappet can be slidable.
  • At least one of the contact surfaces of the cam and tappet can be padded to dampen impact noises.
  • the second reaction lever arm is divided into two sections connected by a lockable joint.
  • a play between the tappet and the control cam can also be compensated for.
  • a particularly simple embodiment of the play compensation device can consist in that the joint is a film joint and each of the two sections of the second reaction lever arm has a projection which extends transversely to the longitudinal direction of the second reaction lever arm and that the angle of rotation distance of the two projections is adjustable by an adjusting screw connecting the projections .
  • each key 1 is pivotally mounted about an axis of rotation 2 against the force of a return spring 3.
  • the key 1 actuates an electrical switching element 4, which has a contact spring 5, which is brought into contact with a fixed contact 7 in the rest position by a contact plunger 6 and with a fixed contact 8 in the working position.
  • a plunger 10 is pivoted about a horizontal axis of rotation 11.
  • the plunger 10 is by the force of a spring 12, here a leaf spring, on the plunger 10 is fastened and rests loosely on the button 1, pressed against a first arm 13 of a reaction lever 14 which is pivotally mounted about a horizontal axis 15.
  • the reaction lever 14 has a second arm 16, at the end of which an additional mass 17 is attached.
  • the reaction lever 14 is provided with a control cam 18 in the form of a circular arc, at one end of which the free end of the plunger 10 bears vertically in the one end position (the rest position) of the reaction lever 14 shown in FIG. 1, wherein the longitudinal axis of the straight, rod-shaped tappet 10 extends perpendicular to a tangent to the control cam 18 in the tappet contact point.
  • the axis of rotation 15 and the control curve 18 lie approximately on the same circle around the center of curvature 19 of the control curve 18.
  • the control curve 18 is convexly curved and its ends adjoin pads 20 and 21 whose tappet contact surfaces are at an angle to the control curve 18 and each extend approximately in the longitudinal direction of the arms 13 and 16 of the reaction lever 14, the plunger 10 in the end position of the button 1 shown in FIG. 1 lying flat against the cushion 20 with a side face.
  • the end positions of the reaction lever 14 are determined by stops 22 and 23 for the arm 16 or by stops 24 and 25 for a stop plate 26 attached to the arm 13 and extending it.
  • the contact surfaces of the stops 22 to 25 can be padded to dampen the stop noises.
  • the stops 22 to 25 can be designed as horizontally continuous strips which are common to the reaction lever arms 14 of all keys 1.
  • the stop 22 or 24 is adjustable in the direction of the double arrow 27 or 28 about the axis of rotation 15 of the reaction lever 14, so that the arm 16 with the additional mass 17 in the shown rest position practically not on the stop 22 or the stop 24, but on the cam 18 on the free end of the plunger 10, whereby it is ensured that the overall center of mass of the reaction lever arm 16 is approximately at the same level with the axis of rotation 15, so that the total weight of the reaction lever arm 16 always exerts a torque about the axis of rotation 15 counter to the direction of actuation of the reaction lever 14 caused by the key 1.
  • a third reaction lever arm 30 which is approximately in the same direction as the arm 16, but on the arm 16 opposite side of the axis of rotation 15 extends, axially displaceably mounted in the direction of the double arrow 31.
  • the lever arm 30 can be a threaded rod and the weight 29 can be a nut.
  • a shutdown device 32 which is arranged below the reaction lever arm 16 and has a lever 33 for each reaction lever 14 or button 1, which can be pivoted by rotating a shaft 34 common to all reaction levers 14, by rotating the shaft 34 and swinging up the lever 33 iln the position shown in Fig. 4, all reaction lever 14 are locked in the upper end position at the stop 23 or 25, so that there is a distance between the cushion 21 and the free end of the plunger 10. In this position, the reaction lever 14 can all buttons 1 can be freely operated like an organ without the reaction lever 14 also being pivoted.
  • the pivoting of the parking device 32 can be effected by means of an electromagnetic rotary drive, not shown, which can be triggered by pulling a register while actuating an associated switch.
  • the plunger 10 in the position shown in FIG. 1 initially transmits the pivoting movement of the key 1 fully to the reaction lever 14, wherein the reaction force exerted on the button 1 by the reaction lever 14 is directly proportional to the acceleration with which the button 1 is actuated.
  • the reaction force is relatively high because of the relatively large distance of the additional mass 17 from the axis of rotation 15 and the relatively small distance of the plunger 10 from the axis of rotation 15, so that the additional mass 17 can be chosen to be correspondingly small.
  • the plunger 10 is pivoted clockwise by the elastic cushion 20 of the reaction lever arm 13 until it has reached the position shown in FIG. 2, the so-called release position.
  • the tappet 10 begins to slide on the control cam. The game l feel this because button 1 is easier to move from this position.
  • the plunger 10 is guided through the control cam 18 to the cushion 21 or reaction lever arm 16 solely by appropriate shaping of the reaction lever 14 and the control cam 18 without the conventional trigger man acting on an additional lever of the plunger.
  • the reaction lever arm 16 therefore simultaneously takes over the task of the conventional counter-catcher with its cushion 21 and the plunger 10 at the same time the task of the conventional catcher.
  • Keyboard players often prefer an inclined position of the instrument, often so that the grip area of the keys is higher than their axis of rotation 2. With this version of the keyboard, this is easily possible, even with a 40 ° inclination, the function does not change significantly.
  • FIGS. 5 to 7 differs from that according to FIGS. 1 to 4 essentially only in that the reaction lever 114 and the parts interacting with it do not lie above the button 1, but below the grip area of the one end button 1 pivotable about the horizontal axis 2 are arranged. Furthermore, the control curve 118, in contrast to the control curve 18, is provided on the side opposite the reaction lever arm 16 with the additional mass 117 with respect to the axis of rotation 15 on the reaction lever arm 113 and not on the reaction lever arm 116.
  • FIGS. 5 to 7 The operation of the keyboard according to FIGS. 5 to 7 is essentially the same. If the key 1 is moved down by approximately 70% of its possible path, the plunger 10 and the reaction lever 114 are rotated into the position shown in FIG. 6. By rotating the reaction lever 114, the cushion 20 has pivoted the plunger 10 into the position shown. This is the trigger position. From then on, the plunger 10 slides downward along the control cam 118, and the drive for further rotation of the reaction lever 114 is interrupted.
  • the key 1 is then pressed without any appreciable resistance against its lower (not shown) stop.
  • the reaction lever arm 116 with the additional mass 117 swings due to its kinetic energy up to the upper elastic stop 23. Here it is stopped and then falls back onto its lower elastic stop 27 into the position shown in FIG. 7.
  • the button 1 is released, it goes back to its upper stop (not shown) and the plunger 10 returns to its starting position according to FIG. 5.
  • an adjustment weight piece (not shown) (corresponding to the adjustment weight piece 29 in FIG. 1) is provided in the area of the control curve 118.
  • the parking device 32 is again provided.
  • This embodiment example also allows the keyboard to be tilted, as is often desirable for keyboards.
  • the reaction lever arm 116 is divided into two sections 116a and 116b, which are articulated by a film joint 35.
  • Each lever arm section 116a and 116b has a projection 36 and 37 projecting transversely to the longitudinal direction of the lever arm 116, which can be pivoted relative to one another by an adjusting screw 38 which passes through a thread-free bore of the projection 37 and engages in a threaded bore of the projection 36 in order to compensate for a play between the tappet 10 and the control cam 118. If the gap 39 is narrowed according to FIG. 9 with the aid of the adjusting screw, the reaction lever arm 116 is kinked in the region of the film joint 35.
  • the additional mass 117 is thus also adjusted upward, so that the additional mass 117 only after a further rotation of the lever arm 113 relative to the position shown in FIG. 8 clockwise on the tappet to compensate for the play between the tappet and the cam 118.
  • the lower stop 22 is not adjustable in this embodiment.
  • the control cam is formed by a roller 118 ⁇ which is rotatably mounted about an axis 41 between two bearing arms 40. Otherwise, this reaction lever is designed in the same way as the reaction lever 114 according to FIGS. 8 and 9.
  • roller 118 which can alternatively also be provided at the free end of the tappet 10, the sliding friction between the tappet 10 and the control cam is largely avoided. It is therefore possible to do without lubricant between the tappet and the control cam, as would be necessary if at least one of the contact surfaces between the tappet and the control cam is not designed as a roller, but is only padded or made of elastic material such as rubber, silicone or the like To avoid impact noises. Such upholstery fabrics have too high a coefficient of friction, which requires lubrication. However, oiling or lubricating the mechanics of an organ would require a lot of maintenance mean. Many elastic plastics also have the risk of being decomposed by unsuitable lubricants.
  • roller 118 ⁇ as a control cam therefore not only makes lubrication unnecessary, but also enables the free choice of a cushion material covering the roller and / or the end of the tappet.
  • Modifications of the illustrated exemplary embodiments lying within the scope of the invention can consist in that the very weak leaf spring 12 is replaced by a corresponding spiral spring, e.g. a leg spring or a torsion spring, replaced or the plunger 10 itself is designed to be flexurally elastic.
  • the adjusting weight piece 29 can also be slidably mounted on the reaction lever arm 13 or 113.
  • the adjusting weight piece 29 and the lever arm 30 it is possible to mount the additional mass 17 on the reaction lever arm 16 in a displaceable manner.
  • the stop plate 26 can be formed in one piece with the reaction lever arm 13 or by the latter itself. Instead of the film joint 35 in the exemplary embodiments according to FIGS.
  • a joint with joint bolts can be provided.
  • the hinge pin is designed as a screw bolt
  • the hinge can be locked by means of a nut fitting on the screw bolt, so that the projections 36 and 37 and the adjusting screw 38 are omitted.
  • the length of the tappet can be made adjustable for the play compensation between the tappet and the control cam, e.g. by dividing the ram into two axially screwable and lockable sections.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Lubricants (AREA)
EP87117656A 1986-12-06 1987-11-28 Clavier pour un orgue électronique Expired - Lifetime EP0270966B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87117656T ATE88591T1 (de) 1986-12-06 1987-11-28 Tastatur fuer eine elektronische orgel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3641813A DE3641813C1 (de) 1986-12-06 1986-12-06 Tastatur fuer eine elektronische Orgel
DE3641813 1986-12-06

Publications (3)

Publication Number Publication Date
EP0270966A2 true EP0270966A2 (fr) 1988-06-15
EP0270966A3 EP0270966A3 (en) 1989-09-06
EP0270966B1 EP0270966B1 (fr) 1993-04-21

Family

ID=6315659

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87117656A Expired - Lifetime EP0270966B1 (fr) 1986-12-06 1987-11-28 Clavier pour un orgue électronique

Country Status (5)

Country Link
US (1) US4860630A (fr)
EP (1) EP0270966B1 (fr)
JP (1) JPS63155095A (fr)
AT (1) ATE88591T1 (fr)
DE (1) DE3641813C1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3905646C1 (fr) * 1989-02-24 1990-08-02 Wersi Gmbh & Co, 5401 Halsenbach, De
US5386083A (en) * 1993-11-30 1995-01-31 Yamaha Corporation Keyboard instrument having hammer stopper outwardly extending from hammer shank and method of remodeling piano into the keyboard instrument
US5434349A (en) * 1993-03-22 1995-07-18 Yamaha Corporation Keyboard instrument selectively entering into an acoustic mode and a silent mode through a sliding motion of a stopper
US5444181A (en) * 1993-03-24 1995-08-22 Yamaha Corporation Keyboard instrument selectively entering into an acoustic sound mode and an electronic sound mode through a rotation of a stopper with a cushion sheet against damper wires
US5463184A (en) * 1993-06-03 1995-10-31 Yamaha Corporation Keyboard instrument having a catcher stopper for silent operation on keyboard
US5483861A (en) * 1994-06-20 1996-01-16 Yamaha Corporation Keyboard instrument equipped with durable hammer stopper for selectively producing acoustic sounds and synthesized sounds
US5591927A (en) * 1993-09-17 1997-01-07 Yamaha Corporation Keyboard musical instrument having key action mechanisms movable to and from strings
US5594188A (en) * 1992-09-22 1997-01-14 Yamaha Corporation Keyboard musical instrument having key action mechanisms movable to and from strings
US5602351A (en) * 1993-11-30 1997-02-11 Yamaha Corporation Grand piano-like keyboard instrument for selectively producing acoustic sound and synthesized sound

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3918880A1 (de) * 1989-06-09 1989-11-09 Dieter Mauri Keyboard mit fluegelspielart
DE3935447A1 (de) * 1989-10-25 1991-05-02 Broadcast Television Syst Verfahren und schaltung zur lageveraenderung einer digital erzeugten trickfigur
US5243125A (en) * 1991-03-22 1993-09-07 Kabushiki Kaisha Kawai Gakki Seisakusho Keyboard apparatus for electronic musical instrument having cooperating jacks and hammers
JP2528588Y2 (ja) * 1991-04-24 1997-03-12 株式会社河合楽器製作所 電子楽器の鍵盤装置
TW311216B (fr) * 1995-09-28 1997-07-21 Kawai Musical Instr Mfg Co
JP5169681B2 (ja) * 2008-09-25 2013-03-27 ヤマハ株式会社 鍵盤装置
JP5552260B2 (ja) * 2009-05-07 2014-07-16 株式会社河合楽器製作所 電子鍵盤楽器の鍵盤装置
DE102009050301B4 (de) * 2009-10-22 2012-10-25 Paul Hartmann Aktiengesellschaft Fixierhöschen für absorbierende Inkontinenzvorlage
ITMI20122137A1 (it) * 2012-12-14 2014-06-15 Claudio Righetti Strumento musicale elettronico a tastiera con tasti pesati con meccanica a martello
US9899014B2 (en) * 2015-04-10 2018-02-20 Casio Computer Co., Ltd. Keyboard device and keyboard instrument
JP6809015B2 (ja) * 2016-07-22 2021-01-06 ヤマハ株式会社 鍵盤装置
JP6717097B2 (ja) * 2016-07-22 2020-07-01 ヤマハ株式会社 鍵盤装置
JP6930258B2 (ja) * 2017-07-12 2021-09-01 カシオ計算機株式会社 鍵盤装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US527504A (en) * 1894-10-16 William o
JPS4630775Y1 (fr) * 1968-05-06 1971-10-25
US3903780A (en) * 1974-05-29 1975-09-09 Farfisa Spa Keyboard for musical instruments with inertial effect of the keys
JPS5419729A (en) * 1977-07-14 1979-02-14 Matsushita Electric Ind Co Ltd Key board device
JPS5419728A (en) * 1977-07-14 1979-02-14 Matsushita Electric Ind Co Ltd Key board device
WO1980001427A1 (fr) * 1979-01-02 1980-07-10 Arp Instr Clavier a action de piano
US4375179A (en) * 1980-10-27 1983-03-01 The Wurlitzer Company Action for electronic piano
US4723471A (en) * 1985-06-18 1988-02-09 Nippon Gakki Seizo Kabushiki Kaisha Keyboard device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3905646C1 (fr) * 1989-02-24 1990-08-02 Wersi Gmbh & Co, 5401 Halsenbach, De
US4993305A (en) * 1989-02-24 1991-02-19 Wersi Gmbh & Co. Manual with piano effect for use in electronic organs
EP0384120A3 (fr) * 1989-02-24 1992-05-20 Reinhard Franz Clavier pour un orgue électronique ayant l'effet d'un piano
US5594188A (en) * 1992-09-22 1997-01-14 Yamaha Corporation Keyboard musical instrument having key action mechanisms movable to and from strings
US5434349A (en) * 1993-03-22 1995-07-18 Yamaha Corporation Keyboard instrument selectively entering into an acoustic mode and a silent mode through a sliding motion of a stopper
US5444181A (en) * 1993-03-24 1995-08-22 Yamaha Corporation Keyboard instrument selectively entering into an acoustic sound mode and an electronic sound mode through a rotation of a stopper with a cushion sheet against damper wires
US5463184A (en) * 1993-06-03 1995-10-31 Yamaha Corporation Keyboard instrument having a catcher stopper for silent operation on keyboard
US5591927A (en) * 1993-09-17 1997-01-07 Yamaha Corporation Keyboard musical instrument having key action mechanisms movable to and from strings
US5386083A (en) * 1993-11-30 1995-01-31 Yamaha Corporation Keyboard instrument having hammer stopper outwardly extending from hammer shank and method of remodeling piano into the keyboard instrument
EP0655728A1 (fr) * 1993-11-30 1995-05-31 Yamaha Corporation Instrument à clavier muni d'un arrêt de marteau prolongé en dehors de la manche du marteau et procédé pour transformer un piano dans un instrument a clavier
US5602351A (en) * 1993-11-30 1997-02-11 Yamaha Corporation Grand piano-like keyboard instrument for selectively producing acoustic sound and synthesized sound
US5483861A (en) * 1994-06-20 1996-01-16 Yamaha Corporation Keyboard instrument equipped with durable hammer stopper for selectively producing acoustic sounds and synthesized sounds

Also Published As

Publication number Publication date
US4860630A (en) 1989-08-29
EP0270966B1 (fr) 1993-04-21
JPS63155095A (ja) 1988-06-28
DE3641813C1 (de) 1988-04-14
ATE88591T1 (de) 1993-05-15
EP0270966A3 (en) 1989-09-06

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