Piano double repetition mechanism. RU patent 2519915.

IPC classes for russian patent Piano double repetition mechanism. RU patent 2519915. (RU 2519915):

Another patents in same IPC classes:

Rehearsal mechanism for piano / 2395852
Device comprises keys, which are installed on frame of keyboard with the possibility of swinging, and every of which retains controlled driving element inclined in counterclockwise direction. Driving element is connected to inclined swinging lever, acting as lever of the first output accessory, fixed with the possibility of rotation on the main swinging bridge unit, which in process of operation swings with specified lever of the first output accessory connected to end roll of hammer fixed with the possibility of rotation on the first support element. Specified main swinging bridge unit is inclined downwards in counterclockwise direction relative to horizontal line. On the first support element there are adjustment buttons arranged for adjustment of the first and second output accessories. The second support element is connected to main swinging bridge unit, and lever of the second output accessory is fixed to the second support element with the possibility of rotation, and button is arranged on lever for adjustment of its working angle, and lever of the second output accessory interacts with specified lever of the first output accessory, where adjustment button is also arranged. Besides specified driving element has substantially cylindrical shape and comprises helical adjustment facility and sharpened end part arranged with the possibility of interaction with concave seat arranged in lower end part of specified swinging lever. Besides on the main swinging bridge unit there is the first tip of hammer installed, which is not affected by the lever of the second output accessory, which, in its turn, has slightly S-shaped configuration and interacts with the second tip of hammer fixed to tail part of specified hammer.

Zhomotov in piano keyboard mechanism / 2330328
Invention relates to production of the piano keyboards. The said keyboard mechanism incorporates a repetition lever fitted on the post attached to the spiller. The post is furnished with ledges, a screw and a spring. The repetition lever is made adjustable. Adjusting posts are arranged on the gammerbank and furnished with a movable plate.

Key mechanism of piano / 2257622
Device has adjusting posts, mounted in supporting bar for holding gear assemblies, which in turn has shelf, made in form of ausleser board.

Piano double repetition mechanism / 2519915
Piano double repetition mechanism comprises at least one spring (22), at least one adjustment screw (23) connected to one end of the spring (22), and at least one angle section (24) in form of interconnected shelves, which is mounted with the outer surface of one shelf on the top surface of the jack damper. In the other shelf of the angle section there is at least one opening in which said adjustment screw (23), which is connected to one end of the spring, is inserted. The spring (22) exerts pressure through its other end on the top part of the jack (8).

Piano double repetition mechanism / 2521332
Piano double repetition mechanism comprises at least one spring 22, one end of which interacts with the upper part of a jack 8. The mechanism further includes at least one bar mounted on at least two pins 23 which pass through openings in the bar and are mounted on the main rail 4. The second end of the spring 22 is connected to the board.

FIELD: physics.

SUBSTANCE: piano double repetition mechanism comprises at least one spring (22), at least one adjustment screw (23) connected to one end of the spring (22), and at least one angle section (24) in form of interconnected shelves, which is mounted with the outer surface of one shelf on the top surface of the jack damper. In the other shelf of the angle section there is at least one opening in which said adjustment screw (23), which is connected to one end of the spring, is inserted. The spring (22) exerts pressure through its other end on the top part of the jack (8).

EFFECT: easier installation of the piano double repetition mechanism into a piano mechanism overall, without dismantling the latter.

3 cl, 2 dwg

The invention relates to the field of manufacture of musical instruments, in particular the double repetition mechanism piano.

There are various mechanisms to improve the rehearsal and technical capabilities of the device mechanics piano (DE 3610150 A1, 08.10.1987, CN 201725549 U, 26.01.2011, CN 202167219 U, 14.03.2012, GB at 225,000 A, 27.11.1924, EN 2463332 C1, 10.10.2012).

All of the above mechanisms have a common disadvantage inconvenience and time consuming installation mechanism rehearsals in the device mechanics piano due to partial or complete disassembly of mechanics piano. In addition, in those decisions rehearsal spring elements in the implementation of rehearsals cause impact on the tip of a finger of the hand.

It should be noted that the mechanisms known from sources CN 201725549 U and CN 202167219 U, active force rehearsal springs directed much lower direct contact between the end of spillere with shulerom, which does not ensure the achievement of a clear work rehearsals.

The closest analogue to the proposed invention is a solution GB 107241 And (21.06.1917, G10C 3/16), in which the mechanism double repetition piano, containing at least one spring and at least one screw that is associated with one end of the spring, and the spring is set in the interaction of spillere with soltera.

A big disadvantage technical solutions, unveiled in the closest analogue is the lack spilling of lastica affecting the speed of return spillere to Solteras the pillow, so that does not take into account the progress of spillere against Spillerom lastima in the implementation of the rehearsal. Installing springs J 1 (see Figure 1) or L 1 (see Fig. 4) in the interaction of spillere with shulerom technically difficult, as it implies a complete disassembly, drilling holes and then builds the mechanics. In addition, constructive, the spring J 1 is such that with the touch of a hammer with the string occurs grebbeline - the phenomenon shake hammer, causing fractional blows his strings.

The present invention is directed on elimination of the above shortcomings.

The technical result of the invention consists in simplifying the installation of the double repetition mechanism piano in the device mechanics piano in General, without disassembly of the latter, and is achieved by the fact that the double repetition mechanism piano contains at least one spring and at least one screw that is associated with one by the end of the spring, and the mechanism additionally contains at least one corner of the profile in the form of interconnected shelves, which is set to the external surface of one shelf on the top surface spilling of elastica, while another shelf made at least one hole, in which has specified the adjusting screw that is associated with one end of the spring, and the other end of the spring exerts pressure on the upper part of spillere.

Spring is a helical spring compression.

External the surface of a shelf, which made a hole to install the screw facing spillere.

The angle between shelves is 90 degrees.

The invention is illustrated by drawings:

Figure 1 - the device mechanics piano with a proposed mechanism double repetition piano (damper site not shown);

figure 2 increased shows the proposed mechanism double repetition.

The device mechanics piano (see Figure 1) is interrelated from a blow on the button (1) until the fall of the hammer (2) of the string (3) keyboards, curly, hammer and damper (not shown) nodes. Curly, hammer and damper nodes are attached to amerbank (4) - hammer Board.

Figure node consists of a horizontal arm of the figure (5), which made the knob (6) to interact with the driver (7) - adjustable screw conveys movement from key (1) to the figure (5), which is a cylindrical head that screwed on a metal rod.

From the top of the figure (5) there is the capsule, in which the axis planted the lever with the tab - spiller (8), designed to push the primary site. In the tab (9) spiller bottom rests spring (10), the holding spiller (8) to the base hammer site - soltero (11). When lifting figures (5) the ledge (9) spiller rests on auslesen navel (12)which allocates spiller (8) away from soltera (11), turning straight spillere in the rotation.

In the front end figures (5) has two hard wire (13), (14). The longer (13) is at the end of the head with a strip of dense Fils - finger (15). The second short (14) wire ends of the loop and is called a loop. On a wire (14) is set benthic (16) - flexible ribbon connecting the hammer and the shape. On the front of soltera cut tab (17) (gravirovka), which rests at work spiller (8). Below the ledge (17) pasted pad (18) of soft springy felt (WebFilter), which lays down spiller (8). Above the ledge (17) installed contravener (19) - slipper, entering into interaction with vengeron (15) during the return stroke of the hammer (2) from the string (3). Benthic (16) links the hammer and shape through contravener (19). Hammer (2) fixed on the stem above soltera (11). Bearing the hammer of the foot is called Hammarsten (20). On the reverse side of soltera (11) a spring (not shown) to communicate by means of a cord (not shown) with sultanim capsule. In the device mechanics piano has a strap with a felt pillow on which falls the hammer - hammermeister (21).

The double repetition mechanism piano contains at least one spring (22) and at least one screw (23)associated with one end of the spring, and the mechanism additionally contains at least one corner profile (24) in the form of interconnected shelves, which is set to the external surface of one shelf (25) on the top surface spilling of elastica (26), while another shelf (27) made at least one hole, in which has specified the adjusting screw (23)associated with one end of the spring, and the other end of the spring (22) is putting pressure on the upper part of spiller (8).

Adjusting screw (23) is associated with the end of the spring (22) through the umbilicus is fixed on the end of the spring, and the belly button is on the side surface of a shelf (27), which is addressed to spillere (8). In the navel made blind hole, which is screwed into the end of the screw (23). The other end of the spring (22) interacts with the upper part of spiller (8).

Spring (22) is a helical spring compression. External the surface of a shelf (27), which made a hole to install the screw facing spiller (8). The angle between shelves is 90 degrees.

The device mechanics piano with the double repetition mechanism works as follows. When the key is pressed (1) a pilot (7) lifts and turns figure (5). Lifting, figure (5) pushes spiller (8) up. Spiller (8), moving together with the figure (5) upwards, rests on the ledge (17) of soltera, directly connected via Hammarsten (20) with hammer (2), and pushes shelter (11) up until it touches the hammer (2) with the string (3). Button (1) in this work, the device is in the down position with simultaneous closure of finger (15) with conchigera (19). When picking up keys (1) breaking occurs finger (15) with conchigera (19), and at the same time triggered rehearsal spring (22), which returns spiller (8) to its original position, i.e. to the pillow (18) of soltera.

Rehearsal spring (22) through the screw (23), set on a corner profile (24), sent directly to the contact of the end of spiller (8) with a pillow (18) of soltera that, ultimately, positively affects the double repetition. When this is achieved technical effect devices mechanics piano, comparable to the operation of the mechanics of the piano, with the double repetition.

A proposed mechanism double repetition is collected separately and then installed into the mechanics of the piano. Installation is carried out by provorachivanija screws or gluing angle profile (24) to Spillerom lastima (26).

The proposed mechanism is universal, because it does not imply interference in the device mechanics, produced at the factory, and can be applied on all, without exception, are in operation instruments, regardless of their grade and year.

1. The double repetition mechanism piano, containing at least one spring and at least one screw that is associated with one end of the spring, characterized in that it additionally contains at least one corner of the profile in the form of interconnected shelves, which is set to the external surface of one shelf on the top surface spilling of elastica, while another shelf made at least one hole, in which has specified the adjusting screw that is associated with one end of the spring, and the other end of the spring exerts pressure on the upper part of spillere.

2. The mechanism of claim 1, characterized in that the spring is a helical spring compression.

3. The mechanism of claim 1, characterized in that the outer surface of a shelf, which made a hole to install the screw facing spillere.