摘要:
A black key for a keyboard instrument, in which a black key cover incorporating a weight can be manufactured at low costs, and the black key cover can be firmly mounted on a key body, in a state stably holding the weight in a black key cover body. A swingable key body extends in a front-rear direction. A black key cover body has a hollow shape opening downward, and is mounted on a front portion of the upper surface of the key body in a manner covering the front portion. A weight is received within the black key cover body. The black key cover body has at least one of lower walls protruding inward from lower portions of left and right side walls, for holding the weight from below. The lower surfaces of the lower walls are bonded to the key body.
摘要:
A piano hammer comprises an elongate hammerhead having a nose portion defining side surfaces and a felt covering extending about the nose portion with tail portions of the felt covering affixed to the side surfaces. The felt covering defines a substantially elliptical peripheral surface from a top region for striking a piano string to front and back regions. An elongated single or dual layer strip is arranged on the peripheral surface of the felt covering in the top region, extending along the front and back regions to points beyond the hammer equator. The layers of this strip or “voicing tape” are made of a synthetic non-woven fabric material, preferably of the type sold under the registered trademark Pellon.
摘要:
In a keyboard apparatus, a key unit has one or more key bodies, a key supporting part for supporting each key body, and a connecting part for connecting the key body to the key supporting part pivotably in a key-stroking direction of the key body. A key frame has an upper surface, and a key mounting part disposed on the upper surface for mounting the key supporting part of the key unit. The key supporting part of the key unit has a first engagement section having a hook-like structure or a press-fitting structure. The key mounting part of the key frame has a second engagement section which engages with the first engagement section when the key unit is mounted to the key frame. The second engagement section has a through-hole or a concave for engagement with the hook-like structure or the press-fitting structure of the first engagement section. The first engagement section and the second engagement section are located above the key mounting part of the key frame.
摘要:
Key is pivotably supported by a key frame, and the front end of the key is normally urged upward by a pivot lever. Load member drivable by an actuator is provided rearwardly of a mass body of the pivot lever. Key switch and proximity sensor detect a pivoting position of the key responsive to depression and release operation of the key. Load control circuit performs driving control of the actuator, in accordance with the pivoting position of the key, to move the load member back and forth, to thereby cause the load member to engage (or contact) with the mass body in a depression stroke and terminates the engagement in a release stroke.
摘要:
An improved music stand for upright pianos includes a forwardly extending base plate and a back plate extending generally perpendicular to the base plate upwards therefrom. A rear rail-engaging plate extends rearwards from the back plate and the base plate, the rail-engaging plate having an arcuate cross-section curvature operative to fit over and frictionally engage at least a portion of the piano rail on the upright piano whereby the improved music stand is removably supported on the upright piano.
摘要:
Disclosed are systems and methods of receiving note selections from a musician while providing an appropriate tactile sensation to the musician's fingers.
摘要:
An upright piano includes a piano case having an upper front panel, a left side panel, a right side panel, and a top lid. The upper front panel is pivotally mounted below and generally abutting the top lid. A keyboard is supported by the piano case and has a plurality of keys. A keyboard lid has a width substantially equal to a width of the upper front panel. The piano includes left and right upper front panel strips disposed on the corresponding left and right side panels. The upper front panel is pivotally attached to the left and right upper front panel strips to rotate between a closed position and an open position. The upper front panel is substantially parallel to and substantially in between the left and right upper front panel strips while in the closed position.
摘要:
A key structure which is capable of giving a woody appearance to the key, and increasing the freedom of mounting at least one functional part formed as a separate part from the key structure, while maintaining excellent machinability. An upper plate has an increased width part corresponding to an end of a white key toward a player. In the key structure, a wood part is secured to the lower surface of at least the increased width part of the upper plate, and has an increased width part having substantially the same width as the increased width part of the upper plate. The key structure is mountable in a keyboard apparatus, for functioning as a white key pivotally moved by key-depressing operation. A recess is formed in a part of the wood part including the increased width part, which opens downward and has a width (W0) not less than 50% and not more than 80% of the width (B0) of the increased width part of the wood part.
摘要:
There is provided a hammer shank for a piano which is capable of suppressing a change in the dimension between two arms due to dryness and wetness to thereby ensure smooth and stable operation of a hammer. A hammer shank is supported by a flange and pivotally moves in accordance with key depression. A shank body formed of wood has two bifurcated arms formed on one end thereof. These arms extend in facing and parallel relation to each other along respective opposite sides of the flange, and are pivotally supported by the flange. Phenol backers are attached on outer side surfaces of the respective two arms so as to prevent the two arms from being displaced in a direction in which they face each other.
摘要:
A keyboard apparatus 100 has plural keys 10 and 11, plural electronic actuators 30, and plural link mechanisms 40. Each of the keys 10 and 11 extends in the longitudinal direction, and pivots in the vertical direction about a support C1 by the operation of depressing the keys and the operation of releasing the keys. Each of the electronic actuators 30 has a movable member 31 that displaces in the vertical direction in interlocking with the pivot movement of each of the keys, and applies a reaction force against the operation of depressing the keys 10 and 11. Each of the link mechanisms 40 links each of the keys 10 and 11 and the movable member of each of the electronic actuators 30 in such a manner that power can be transmitted. Each of the link mechanisms 40 has a plate-like first fixing portion 41 that is fixed to each of the keys, a plate-like second fixing portion 42 that is connected to each of the movable members 31, and plural spherical fine grains 43 filled in a gap between the first fixing portion 41 and the second fixing portion 42.