RU2676417C2 - Piano key mechanism - Google Patents

Abstract

FIELD: musical instruments.SUBSTANCE: invention relates to keyboard musical instruments. Essence of the invention lies in the fact that at the counter fencer, the pin, the schulter, the hammerstiel the hinged device with a rehearsal spring and with a device for its adjustment is mounted; in the hinged device a spring is fixed with a screw, the end of the spring is in contact with the damper leech, a soft material is installed on the damper leech, a figured plate with soft material is mounted on the check, the figured plate is linked to a check wire, a ribbon is mounted on the back bar, a spring is installed in the tape, the free end of the spring is in contact with the key.EFFECT: invention ensures smoothness of the dynamic stroke of the key after disconnection of the spiller from the schulter, as well as the absence of play when using the "piano" pedal.5 cl, 8 dwg

Description

Technical field

The invention relates to the production of keyboard musical instruments, in particular, the piano and piano.

Known piano keyboard mechanism with a vertical arrangement of strings (I. G. Fadeev, S. M. Allon "Repair and tuning of the piano and grand pianos." M .., "Light industry", 1973, pp. 72-73) containing a key with a pilot located on three longitudinal bars, a hammer assembly connected by a capsule to a gammerbank, a figure is fixed from below to a gammerbank by a spring-loaded spiller with a figured protrusion in contact with an ausleric navel. Below the figure there is a ledge for contact with the pilot. At the front end of the figure, two wires are fixed: a fender is screwed onto the fender wire. a bentic is attached to the cable, which provides a flexible connection between the hammer and the figure. The counterfenger is mounted on a schulter through a counterfengger pin; a hammermer with a hammer is glued on top of the schulther. On the front of the schulther there is a protrusion with a cushion on which the shiller rests. On the reverse side of the schulther, a spring protrudes, hooked with an end hook and a loop from a cord attached to the plug of the schulther capsule. The spring, unclenching, throws the hammer from the string. The entire hammer knot is screwed to the gammerbank. Hammerbank is mounted on racks. On racks the damper lever is fixed. In front of the hammer unit, a two-piece ruleistik paired from two parts is mounted and mounted on racks. A metal hook is screwed onto the movable rule. The movable stick through a metal hook is connected to the lifting stick, the lifting stick is connected to the left piano pedal. When you press the pedal, the rouleyst, turning, shifts all the mallets towards the strings.

The closest in technical essence is the “Piano Keyboard Mechanism” (AS SU 917192 A1 03/30/82), which improves the quality of the piano mechanics by performing a double rehearsal.

The disadvantages of the traditional model of piano mechanics are: the lack of a double rehearsal function, the lack of properties that take into account the physiology of the pianist's hands, and the lack of qualities that provide professional training on the instrument.

The disadvantages closest in technical essence to the invention of the “Keyboard Piano Mechanism” (a.s. SU 917192 A1 03/30/82), are:

1. Reducing the dynamic load in the direction of the key.

2. The presence of friction when you turn off the shiller on the Schulter.

3. The lack of evenness of the dynamic course of the key after disconnecting the spiller from the boulder.

4. The presence of an inertial stroke of the malleus after disconnecting the spiller from the schulter.

5. The formation of backlashes in kinematic pairs between the pin and schulter. pilot and figure while moving the keys.

6. The mismatch of the moment the key stops with the moment the hammer hits the string.

7. Loss of mass of the keys and figures after disconnecting the malleus from the spiller before the hammer hits the string.

8. Lack of quality double rehearsal features.

9. The inability to produce a good carcass.

10. Lack of quick return (rebound) of the key to its original position.

11. The inability to change the static voltage in the key for pianists of different ages, with different physiological capabilities.

12. The presence of keyboard play when using the piano pedal.

13. The inability to extract the finest "pianissimo".

Disclosure of the invention.

The purpose of the invention is the creation in the mechanics of the piano of a technical base for the professional training of playing the instrument.

The specified goal is achieved by. that in the well-known piano keyboard mechanism containing a pilot key located on three longitudinal bars, a hammer assembly connected by a capsule to a gammerbank. a figure is attached to the gammerbank from the bottom, in which a spring-loaded spiller with a protrusion is fixed to the capsule, the protrusion is in contact with the auslezer navel, a penguin wire and a cable are fixed at the front end of the figure, a fender is screwed onto the fender wire, a bentik is fixed to the cable. which provides a flexible connection between the hammer and the figure, a pin with a counterfenger is fixed on the side surface of the schulter, and a schulter spring and a spiller link are fixed on the other side of the schulther. damper leistik, ruleystik according to the invention on the counter-fenger. a hinge with a rehearsal spring is mounted on a pin, on a schulter, on a gammerstyle, the free end of the rehearsal spring is located between the fender and the counter-fender, the “G” shaped plate with the hole and screw for fastening is installed in the hinged device, the “G” shaped plate contacts the rehearsal spring ; a “G” shaped screw is installed in the attachment for contact with the rehearsal spring; a spring is mounted in the attachment, fixed by a screw, the end of the spring is in contact with the damper louvre; soft material is installed on the damper; a curly plate with soft material is installed on the fengger; the curly plate is adhered to the fenguer wire; a tape is installed on the rear bar, a spring is installed in the tape, the free end of the spring is in contact with the key.

A comparative analysis shows that:

1. the spring mounted on the rear bar, and the rehearsal spring installed in the attachment, align the dynamic load along the direction of the key;

2. the curly plate, in contact with the rehearsal spring during the movement of the key, lifts the schulter through the hinge through the hinged device over the spiller and the spiller leaves without friction when disconnected;

3. The curly plate, in contact with the rehearsal spring, takes on the weight of the schulter and the hammer, which evens out the dynamics of the key stroke after disconnecting the spiller from the schulter;

4. after disconnecting the spiller, a figured plate in contact with the rehearsal spring brings the hammer to the string without an inertial stroke, providing dynamic evenness at the end of the key stroke;

5. the spring installed in the attachment, in contact with the damper lever, when the key is moving, presses the schulther to the spiller, the figure to the pilot, which eliminates the play between the schulther and the spiller, figure and pilot;

6. a spring installed in the attachment, in contact with the damper lever, in cooperation with the rehearsal spring with the figured plate, ensure that the hammer blow on the string coincides with the moment the key stops;

7. the spring mounted on the rear bar and the spring mounted in the attachment provide a bunch of kinematic pairs of keys and figures, figures and mallets, which preserves the set mass for hammer blow on the string, eliminates the loss of sound power.

8. the reduction after hitting the string with the distance from the string to the malleus and the possibility of adjusting the rehearsal spring, ensure that the spiller comes under the schulter to re-hit the malleus on the string with a minimum key lift, which improves the quality of double rehearsal;

9. bringing the hammer to the string with a curly plate through the rehearsal spring after disconnecting the spiller from the hammer, the evenness of the dynamic load throughout the key travel, the absence of backlash between the spiller and the schulter, the pilot and the figure, the high-quality performance of the double rehearsal function creates the technical basis for producing a good carcass.

10. The interaction of the rehearsal spring with the sliding material mounted on the figured plate ensures that when the key is released, the hammer is thrown up to enter the shiller under the shulther and, through the figured plate, the fender, the fender wire, the figure, the pilot, introduces the quality of a “rebound” - quick return of the key in the starting position;

11. The change in the elasticity of the spring in contact with the key, by bending up or down, creates a change in the static voltage in the key, which provides convenience and comfort for pianists of different ages, with different physiological capabilities.

12. when the hammer is brought to the strings by the movable ruler, at the moment of applying the “piano” pedal, the spring installed on the rear bar contacts the key with the other end, presses the key and the pilot against the figure, which excludes any play in the key;

13. Dynamic evenness in the key, lack of friction when the spiller is turned off against the schulter, maintaining dynamic evenness after disconnecting the spiller from the schulther. the movement of the malleus to the string without inertia, the quality of double rehearsal, the lack of play in the key when using the “piano” pedal - provide the key with a clean unhindered move, which makes it possible to extract the finest “pianissimo”.

Thus, the claimed “Piano Keyboard Mechanism” meets the criteria of “novelty” and “significant differences”.

The invention is illustrated by drawings.

A brief description of the drawings.

FIG. 1 - Type of mechanics in statics.

FIG. 2 - View of the rehearsal spring after hitting the hammer on the string.

FIG. 3 - View of the rehearsal spring after releasing the key.

FIG. 4 - View of the malleus brought by the movable ruleik to the string.

FIG. 5 - View of the spring mounted on the attachment, the other end in contact with the Hammerbang.

FIG. 6 is a view of a spring mounted on the attachment, the other end in contact with the figured plate.

FIG. 7 - View of the spring mounted on the attachment, the other end of the loop in contact with the hook.

FIG. 8 - View of the spring mounted on the damper lever, the other end in contact with the hammer.

The implementation of the invention.

The device of the piano key mechanism comprises a key 1, a key capsule 2, a pilot 3. a back bar 4. a polster 5 is mounted on the rear bar 4, a soft tape 6 is fixed on the rear bar 4, a spring 7 is installed in the soft tape 6, the spring 7 is in contact with the free end with a key 1, a pin 9 is installed on the middle bar 8, a key 1 is put on the pin 9, a pin 11 with a washer 12 is installed on the front bar 10, figure 13 (see Fig. 1). The capsules 14 and 15 are fixed in the figure 13. The capsule 14 is fixed on the gamma bank 16, the spiller 17 is fixed to the figure 13 by the capsule 15. The spiller 17 has a protrusion 18. The protrusion 18 is in contact with the ausleric navel 19, the spring 20 is in contact with the protrusion 18 at one end and the other with figure 13, in front of the figure there is a fender wire 21, a fender 22 is screwed on the fender wire 21, a figure plate 23 is mounted on the fender 22. Sliding material 24 is glued to the figure plate 23, the cable 25 is mounted in the front of the figure 13, for the loop hook 26 hooked bentik 27, the other to Nets Bentika 27 is hooked to counter-feng 28, counter-fender 28 is connected to a schulter 29 by a pin of a counter-feng 30, the schulter 29 is connected to a hammerbang 16 by a capsule 31, the hammer 32 is connected to a schulter 29 by a hammer 33, to converter 30, to a pin of counter-fender 30, to a shul Hammerstyle 33 mounted attachment 34, rehearsal spring 35 is installed in attachment 34, rehearsal spring 35 is in contact with the “G” -shaped plate 36, the “G” -shaped plate 36 is fixed to the mounted device 34 by a screw 37, and the “mounted” 34 G "-obr the screw 38, one end of the spring 39 is connected to the attachment 34 by a screw 40, the other end of the spring 39 is in contact with the damper 42, the stick 43, the moving stick 44, the moving stick 44 is connected to the lever 45. the lever 45 is in contact with the stick 46, string 47.

The device operates as follows:

When you press 1, the pilot 3 transmits the movement to the figure 13, the spiller 17 to the schulter 29, the hammer 33 moves the hammer 32 to the string 47; being in motion, the protrusion 18 meets the navel 19, at the same time a figured plate 23 in contact with the rehearsal spring 35, through the attachment device 34 raises the shultur 29; disconnecting the spiller 17 on the capsule 15 from the schulther 29 occurs without friction, the spiller 17 deviates from the string 47 (Fig. 1); the weight of the hammer 32 is maintained through the contact of the rehearsal spring 35 with the figured plate 23, which provides dynamic evenness at the end of the stroke of the key 1 and a soft, inertia-free, bringing the hammer 32 to the string 47; at the same time, when the key 1 moves, the spring 39, resting on one end against the damper lever 42, presses the schulter 29 through the hinge device 34 to the spiller 17, pilot 3 to figure 13, which eliminates backlash in kinematic pairs; spring 7 with its elasticity creates in the key 1 the necessary statics of voltage and during movement equalizes the dynamic force throughout the entire course of the key 1; after hitting the hammer 32 along the string 47, the hammer 32 returns to its original position, moves the rehearsal spring 35. which is in contact with the figured plate 23, to the upper part of the figured plate 23; the spring 35 slides along the figured plate 23, the hammer 32 with its weight and the spring 39 with their elasticity charge the spring 35 on the figured plate 23, the counter-fender 28 meets the fenger 22, the hammer 32 stops (see FIG. 2).

When the key 1 is released, the counter-fender 28 with the fenger 22 exits from a fixed position, the rehearsal spring 35 abuts against the figured plate 23. through the hinge device 34, the hammerstyle 33 throws the hammer 32 up; the spiller 17, pushed by the spring 20, comes under the shultur 29 to re-strike the string 47 to perform the double rehearsal function (see Fig. 3); to achieve the high-quality double rehearsal function, a close stop of the malleus 32 from the string 47 is required, which is regulated by the proximity of the fender 22 to the counter-fender 28. and the adjustment of the rehearsal spring 35 in contact with the “G” -shaped plate 36, screw 37, by unscrewing the screw 37 up to ensuring the absence of a gap between the rehearsal spring 35 and the sliding material 24; Set the “G” -shaped screw 38 with a gap in order to create the necessary elasticity in the rehearsal spring 35 for tossing the malleus 32 upwards to achieve the quality of quick return of the key to its original position, which creates, with a minimum rise in the return stroke of the key 1. high-quality double rehearsal, necessary to extract the gradations of the subtlest "pianissimo"; in the event of a repeated strike from the minimum position when the key 1 is returned, the spiller 17, touching, without entering, to the shredder 29 with the rehearsal spring 35 in contact with the figured plate 23, ensures that the hammer 32 touches the string 47 without impact when the key 1 is slow, which creates basis for making a good carcass.

When you press the pedal "piano" (not shown (see Fig. 4)), the stick 46 through the lever 45 with a movable rule 44 brings the gammer-style 33 and the hammer 32 to the string 47 without keyboard play.

New technical capabilities introduced into the mechanics of the piano ensure the purity of musical speech, sound quality necessary for solving artistic problems, create the technical basis for professional training in the instrument.

A new model of piano mechanics was developed taking into account the physiology of the pianist’s hands. It has technical qualities and properties that take into account modern requirements for the game mechanism.

When performing a work on a new generation instrument, due to the elimination of structural defects in the mechanics of the piano, it is reflected in improving the quality of the performance level of pianists, which is the achievement of the technical result of the invention.

The spring 39 mounted on the attachment 34 can be replaced by a spring 48. mounted at one end on the attachment 49 with a screw 50. The other end is in contact with the hammerbang 16 (see Fig. 5).

The spring 39. mounted on the attachment 34, can be replaced by a spring 51, installed at one end on the attachment 52 by a screw 53, the other end hooked on a figured plate 23 (see Fig. 6).

The spring 39. mounted on the attachment 34, can be replaced by a spring 54 installed at one end on the attachment 55 by a screw 56, the other end hooked on the loop 26 (see Fig. 7).

The spring 39. mounted on the attachment 34 can be replaced by a spring 57, mounted at one end in a soft tape 58, mounted on the damper 42. the other end is in contact with gammerstyle 33 (see Fig. 8).

Applicability in the industry.

The invention can be used in the production of keyboard musical instruments and in the modernization of previously released piano models.

Claims (5)

1. A piano key mechanism comprising a pilot key located on three longitudinal bars, a hammer assembly connected by a capsule to a gammerbank, a figure is attached to the gammerbank from the bottom, in which a spring-loaded spiller with a protrusion is attached to the capsule, the protrusion contacts the auslezer navel on the front the end of the figure is fixed with a fender wire and a loop, a fender is screwed onto the fender wire, a bentic is fixed on the loop, which provides a flexible connection between the hammer and the figure, a pin is fixed on the side surface of the schulter t with a counterfenger, on the other side of the boulder a bobbin spring is fixed, a spiller lever, a damper lever, a ruler, characterized in that a hinge device with a rehearsal spring is mounted on the counterfenger, on the pin, on the bobbin, on the hammermert, the free end of the rehearsal spring is located between the fender and counterfenger, a “G” -shaped plate with a hole and a screw for fixing is installed in the attachment, a “G” -shaped plate is in contact with the rehearsal spring; an “G” -shaped screw is installed in the attachment for contact with the rehearsal spring. 2. The piano keyboard mechanism according to claim 1, characterized in that a spring fixed to the screw is mounted in the attachment. 3. The piano keyboard mechanism according to claim 1, characterized in that a soft band with a spring is installed on the damper lever. 4. The piano keyboard mechanism according to claim 1, characterized in that a curly plate with soft material is mounted on the fenger. 5. The piano keyboard mechanism according to claim 1, characterized in that a tape with a spring is installed between the rear bar and the key.

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