18results about "Pianos" patented technology

To provide a small keyboard instrument in which a keyboard part can satisfactorily be assembled in a musical instrument case.SOLUTION: A keyboard instrument 10 includes; a musical instrument case 200 having a front plate 210, a shelf plate 220, and a connection member 201 which mutually fixes the front plate 210 and the shelf plate 220 and includes a hook part 201c protruding toward a back side B of a longitudinal direction (cross direction FB) of keys; and a keyboard part 50 which has a locking plate 510 as a locking part and is fixed to the musical instrument case 200 in a state in which the locking plate 510 is arranged between the hook part 201c and the shelf plate 220.SELECTED DRAWING: Figure 2

The grand piano linkage device convenient to adjust comprises a base, a staple bolt seat, a compound vibration rod, an ejector rod, a compound vibration torsion spring and an installation seat, the base comprises a base transverse rod and a base vertical rod, the middle section of the base vertical rod protrudes to form a base positioning part, the first end of the compound vibration rod is rotationally connected with the upper end of the base vertical rod through a pin shaft, and the second end of the compound vibration rod is rotationally connected with the upper end of the base vertical rod through a pin shaft. A torsion spring adjusting screw hole is formed in the position, close to the first end of the compound vibration rod, of the compound vibration rod, the torsion spring adjusting screw is installed in the torsion spring adjusting screw hole, the compound vibration rod adjusting screw penetrates through a compound vibration rod adjusting through hole in the compound vibration rod and then is connected with a corresponding screw hole in the base positioning part, and two torsion arms of the compound vibration torsion spring comprise the long torsion arm and the short torsion arm. The short torsion arm is arranged in a positioning groove in the compound vibration rod, and the suspended end of the short torsion arm makes contact with the end of the torsion spring adjusting screw. The size of the linkage device is reduced, normal work of other parts is facilitated, the swing resistance of the compound vibration rod and the resistance of pressing the keys are reduced, and the torsion of the compound vibration torsion spring can be adjusted.

The present invention discloses an upright piano lock, comprising a lock cylinder (1), a lock seat (2), a key (3) and a lock plate (4); the lock seat (2) is embedded in a keyboard cover (5); in an unlocked state, the lock tongue (7) is retracted in the lock seat (2) and positioned in an unlocked position by a spring sheet (8); in a locked state, the front end of the key (3) is turned a second time and the lock cylinder (1) is pushed to move laterally so that the lock tongue (7) is engaged with a lock door stop (6) and positioned in a locked position by a spring sheet (8). The piano lock adds a lock plate to replace a fixing frame, a cover plate, a latch, a torsion spring and an elastic block, adds a locking structure in the lock seat and directly adds a spring sheet to the lock seat, so that the spring sheet always provides an outward elastic force to the lock tongue to position the lock tongue, and the structure is simpler and can be installed in a lock door stop with a smaller height.

A vibration plate for a musical instrument includes: a plate-shaped vibration plate main body that has a deformation anisotropy property; a first elongated reinforcing member disposed on a first face of the vibration plate main body, and that projects outwardly from the first face and extends along the first face in a direction that prevents the vibration plate main body from deforming; and a second elongated reinforcing member disposed on a second face of the vibration plate main body, and that projects outwardly from the second face and extends along the second face in the direction that prevents the vibration plate main body from deforming. As viewed from a thickness direction of the vibration plate main body, at least part of the first elongated reinforcing member overlaps with at least part of the second elongated reinforcing member.

Permanently installed music stand on pianos and grand pianos, made of Plexiglas (acrylic glass) contoured in shape, cut out and polished, e.g. width approx. 800 mm, height approx. 250 mm, thickness 4 mm, 6 mm, 8 mm, 10 mm. In many different contoured shapes and sizes. With various representations, e.g., a lyre

A transportable stringed keyboard instrument includes a lightweight sound-body formed of several layers with front plate and back plate of material of high modulus of elasticity like steel or higher, with a side plate of a material of high modulus of elasticity like steel or higher, bonded to various layers between front plate and back plate. A method of forming a lightweight sound-body includes a single press procedure, wherein the sound-body is formed with bending in opposite direction compared to bending forces due to the string load. An upright piano action is optimized for space reduction so that keys can be positioned closer to the strings and a rotatable action together with the keys form a separate unit for transportation, apart from the sound-body.

The invention discloses a piano system with a real-time variable damping function in the technical field of piano parts, and aims to solve the problems that an electronic piano is single in touch feeling and a mechanical piano is fixed in damping. The system comprises a main control module, a sensing detection module, a power amplifier driving module and a mechanical structure module, all the modules are integrally installed in a shell, the mechanical structure module comprises a key and a permanent magnet fixed to the key, the magnetic pole direction of the permanent magnet is perpendicular to the motion direction of the key, the sensing detection module is connected with the key, and the power amplifier driving module is connected with the key. And the power amplifier driving module is used for detecting displacement information of the key, is provided with an electromagnetic coil which is arranged corresponding to the permanent magnet and is overlapped with the permanent magnet in axis, and can drive the mechanical structure module. Through interaction of dynamic magnetic fields of the electromagnetic coil and the permanent magnet, the damping force can be adjusted in real time according to the motion state of the keys, the dynamic touch change of a traditional mechanical piano from soft touch to heavy compaction is accurately simulated, and the defects that an existing electronic piano is single in touch and the damping of the mechanical piano is fixed are overcome.

To provide a piano with a drop action that can ensure good action operation, reduce length of keys, and compact depth of the piano.SOLUTION: A piano 1 with a drop action comprises: a first key 2A that extends in the front-back direction, is rotatably supported at the rear end, and is operated by the player; a second key 2B that is located below the first key 2A, rotatably supported in the center, and is in contact with the first key 2A at the front end; an action 3 that is located behind and below the first key 2A and the second key 2B, and has a wippen 21 for driving a hammer 4 by upward rotation to strike a string; and a connecting material (wire 13) that is connected to the rear end of the second key 2B and the wippen 21, and lifts and causes the wippen 21 to rotate upward, in accordance with the rear end of the second key 2B rotating upward corresponding to pressing the first key 2A.SELECTED DRAWING: Figure 1

Systems, methods, and devices for improving the mechanisms of musical instruments, including pianos and similar musical instruments, by integrating compliant mechanisms, improving or preferably materials, and improving or preferably manufacturing processes. The device may include a damper underlying lever. The damper underlying lever may include a plurality of rigid links. The rigid link may include a damper shaft bracket, a damper lever connected to the damper shaft bracket by a first rotational connection, and a damper stop connected to the damper lever by a second rotational connection. The damper underlying lever may also include a first compliant structure that provides rotational movement between the at least two rigid links.

To provide a keyboard device for a keyboard instrument, which, compared to a grand piano, reduces the number of components and adjustment points, thereby enabling improvement of productivity and maintainability and also obtainment of a favorable back check function.SOLUTION: A keyboard device for a keyboard instrument comprises: a key 2 that extends in a front-rear direction and freely swings; an action unit 6 that performs a predetermined operation in response to depression of the key 2; and a hammer 5 that is rotatably supported via a hammer support shaft 33 on a hammer support 4, and is driven upward via the action unit 6 as the key 2 is depressed. The hammer 5 includes a back check engagement part 47 that protrudes downward in front of the hammer support shaft 33. The key 2 is provided with a back check 62 that stops the hammer 5 by engagement of the back check engagement part 47 when the hammer 5 rebounds and rotates downward.SELECTED DRAWING: Figure 1

A hybrid acoustic piano, specifically a piano the wires whereof are struck, of the type including a grouped wires, where of each group of three or of four wires associated with a key, one of these is tuned at a pitch different from the other two or three, which are tuned identically; and where the mechanism is such that when the pedal is in a resting state, that is, without depressing the pedal, on pressing the keys, the hammers strike at least two wires of the three or of the four wires of each group with the same tuning, and when the pedal is depressed, the mechanism displaces the hammers to the right and, on pressing the keys, three wires are struck, one of which is the wire tuned at a different pitch from the others.

To secure musical instruments to a floor while enhancing acoustic effects.SOLUTION: A musical instrument fixture 10 comprises: a directional support plate 13 formed from a plate that is either square or square with rounded corners; and a non-adhesive low-rebound portion 21 covering the underside of the directional support plate 13, an outer edge thereof, and an area near the outer edge on a top surface. The fixture is adhered to a floor surface with square corners 15 facing audiences to secure a musical instrument.SELECTED DRAWING: Figure 1

A hammer return spring rail (10) for an upright piano including: at least one cavity (15) for receiving at least one rod (20); and a plurality of open compartments (25) each configured to receive a hammer return spring (30), each spring (30) including a coil (35), and each compartment (25) allowing the hammer return spring (30) to extend outward therefrom in a generally downward direction; each compartment (25) including a slot (45) for receiving an extension (40) of each hammer return spring (30); and each compartment including an aperture (50) for receiving an adjusting means (55) such that, by adjusting the degree to which the adjusting means (55) are inserted into the aperture (50), pressure applied to the extension (40) of the spring (30) can be increased or decreased, thereby causing an increase or decrease of the force exerted by the spring (30) on a corresponding hammer butt (60).

A vibrating plate capable of suppressing expansion and / or bending deformation is provided. A vibrating plate (1) has: a vibrating plate body (10) that is a plate-shaped body having anisotropy; a first reinforcing member (20) that is a long strip-shaped member provided so as to project from a first face (10a) of the vibrating plate body with respect to the first face, and that extends in a direction in which the vibrating plate body is easily deformed with respect to the first face; and a second reinforcing member (30) that is a long strip-shaped member provided so as to project from a second face (10b) of the vibrating plate body with respect to the second face, and that extends in a direction in which the vibrating plate body is easily deformed with respect to the second face. At least a portion of a width direction of the first reinforcing member and the second reinforcing member overlaps at least a portion of a length direction of the first reinforcing member and the second reinforcing member, as viewed in a thickness direction (Z) of the vibrating plate body.

Systems, methods, and devices for improving the mechanisms of musical instruments, including piano and similar instruments, through the integration of compliant mechanisms, improved or better selected materials, and improved or better selected manufacturing processes. A device may include a damper underlever. The damper underlever may include a plurality of rigid links. The rigid links may include a damper flange, a damper lever connected to the damper flange by a first rotational connection, and a damper block connected to the damper lever by a second rotational connection. The damper underlever may also include a first compliant feature providing rotational motion between at least two rigid links.

To solve the problem that it is difficult to effectively transmit delicate vertical movement of a keyboard caused by touch of a player since lead which is easily processed is embedded in a tip part of a conventional keyboard in order to reduce keying force of the keyboard, and the lead functions at the time of depression of the keyboard but does not function at the time of restoration from the depressed state due to its weight.SOLUTION: The grand piano includes a keyboard made of a uniform material and swingably supported by a keyboard reed, a damper lever to be pushed up by a rise of a rear end of the keyboard caused by key depression, and a damper connected to the damper lever and configured to move away from and come into contact with a string in response to key depression and key rest. A compression coil spring is provided between the upper surface on the back side of the damper lever and the lower surface of the back frame on which the damper lever is supported. Further, a compression coil spring is provided between the lower side of the rear end part of the keyboard and the key frame.SELECTED DRAWING: Figure 1