Abstract: A keyboard instrument includes an upper case having an upper side installation part; a lower case having a lower side installation part at a position corresponding to the upper side installation part of the upper case; a keyboard unit including a key-connecting part to which a plurality of keys are connected, the key-connecting part having an insertion hole to which at least one of the upper side installation part and the lower side installation part is inserted; and a fastening member fastening the upper side installation part and the lower side installation part together.

Abstract: A leg attachment structure for a keyboard instrument including leg main bodies that support a keyboard portion from both sides, the keyboard portion in which plural keys are arranged on a key bed, wherein the leg attachment structure has plates installed on upper surfaces of the leg main bodies, the plates and the leg main bodies are fixed by inserting rod-shaped portions formed on lower surfaces of the plates into hole portions provided in the leg main bodies, and the plates are formed to be larger than an area of the upper surfaces of the leg main bodies, and installed at positions eccentric to the inner side and the rear side of the keyboard portion with respect to the upper surfaces of the leg main bodies.

Abstract: A protective enclosure for an effect device includes a substantially rectangular shaped base portion and a substantially cuboid shaped upper portion. The base portion and upper portion communicate with one another and form a common receiving space to enclose an effect device. The base portion includes two opposite side walls, and each side wall has a respective opening to each provide access to the receiving space. An upper wall extends laterally across the base portion side walls, and a foot switch opening is disposed along the upper wall.

Abstract: A power plate pedal board for musical instrument electronics is provided. An exemplary battery powered pedal board structure comprises: at least one battery; and control electronics, wherein the at least one battery and control electronics are housed within the battery powered pedal board structure, wherein the battery powered pedal board structure is configured to mount a plurality of musical effects pedals and to support a load applied to the plate assembly by one or more musician, and wherein the control electronics are configured to provide a plurality of outputs from one of the at least one battery, wherein the plurality of outputs comprise one or more of: (i) one or more outputs that are electrically isolated from each other and provide power to the plurality of musical effects pedals, and (ii) one or more outputs that are not electrically isolated from each other and provide power to one or more of the plurality of musical effects pedals.

Abstract: A keyboard instrument includes an instrument main body having a keyboard unit, a stand which supports the instrument main body, main body fixing sections which are first fixing members for fixing the instrument main body to the stand, side plate fixing sections which are second fixing members for fixing the stand to the instrument main body, and front side screw members each of which is a third fixing member for fixing one of the main body fixing sections to one of the side plate fixing sections with them corresponding to each other in the front-rear direction of the instrument main body. Accordingly, in a state where the stand is supporting the instrument main body, each main body fixing section and each side plate fixing section can be fixed to each other by one of the front side screw members being screwed thereinto from in front of the instrument main body.

Abstract: According to some embodiments a microphone stand base is provided. The microphone stand base may comprise a backer to couple a post and a bottom plate extending from the backer. The backer is coupled to the bottom plate such that the backer is flush with a plurality of edges of the bottom plate.

Abstract: A pianoforte instrument, in particular a piano, has a base. Several bearings serve to support the pianoforte instrument on a floor. A height adjuster is also provided, which permits a height adjustment of the slide element relative to the base and/or a console. A device that facilitates transport is preferably provided on each of the bearings. The device that facilitates transport has a slide element, which permits sliding on the floor.

Abstract: An electronic keyboard instrument that emits sounds in both upward and downward directions from speakers solely for upward sound emission and from speakers solely for downward sound emission to realize acoustics similar to that of acoustic piano, and constitutes rear parts of resonance chambers in a speaker box by a common partition plate to prevent the speaker box from becoming complicated in construction. Woofers directed downward are disposed at a lower part of the speaker box, and squawker directed upward are disposed at an upper part of the speaker box. The internal space of the speaker box is partitioned by one horizontal partition plate into an upper space where resonance chambers for the squawkers are defined by vertical partition plates and a lower space where resonance chambers for the woofers are defined by vertical partition plates. Rear parts of the resonance chambers are constituted by the horizontal partition plate.

Abstract: When a middle plate is to be mounted to an accommodating section surrounded by left and right and rear side plates provided on a body section in a casing structure of a grand-piano type electronic piano, the middle plate positioned in front of the accommodating section is slid rearward, so that a rear end edge portion of the middle plate is fitted into a fitting section provided on the inner surface of the rear side plate and then fixing pieces provided on the underside of the middle plate are fixed to fixation pieces provided on the accommodating section by means of bolts. Such an arrangement can reduce the number of portions to be fixed by bolts and thereby mount the middle plate with an enhanced mounting efficiency. Because the bolts do not appear on the exterior of the electronic piano, the electronic piano can have an enhanced outer appearance design.

Abstract: Structure for an electronic keyboard instrument includes upper and lower cases. The lower case has a bottom plate having lower slits, and the upper case has an upper plate having upper slits. The upper and lower cases are fastened together with the upper case overlapped on the lower case and with opposite edge portions of a circuit board inserted in the lower and upper slits in such a manner that the circuit board is disposed upright between the upper and lower cases. Heat radiating plate is attached to the circuit board. A wiring, drawn out from an operation section provided on the upper case, is wired to pass across a neighborhood of the upper end surface of the heat radiating plate under the lower surface of the upper plate. Heat blocking plate is provided between the heat radiating plate and the wiring to block transfer of heat from the heat radiating plate to the wiring.

Abstract: In order to be able to salvage toy pianos that have become damaged during shipping, a process has been developed to manufacture toy pianos using a set of predetermined jigs in order to cut the parts of the piano in order to achieve uniform pieces in the event of damage to the piano and the replacement of a piece on the piano becomes necessary. Rather than the entire piano needing to be discarded the damage part can simply be removed and a new piece put in its place.

Abstract: A musical instrument having a displacement member that is operable to vary sounds, thereby offering a wide variety of musical performances. A box-shaped sound generation unit accommodated in the inside of a musical instrument body generates a sound in response to any one of performance operators being operated. At least part of a displacement member provided for displacement relative to the musical instrument body is always disposed within the inside of the musical instrument body. When an operating section is operated to cause the displacement member to be displaced as a sound is generated from the sound generation unit, the sound varies according to the displacement of the displacement member.

Abstract: A piano (1) having a dense sound-enhancing component (2), said piano (1) having a case (6), a frame (3) located within the case (6), strings (5) located within the frame (3), keys (9) in connection with hammers (11), two bridges (13) each of stone having a top face (27), a bottom face (28), a first side (29) and a second side (30), bridge pins (16) extending from the top face (27) at an angle, the strings (5) extending across the bridges (13) adjacent to the bridge pins (16), a soundboard (4) and an amount of epoxy (18) located between the bridges (13) and soundboard (4). The dense sound-enhancing component (2) is a stone material, preferably granite, and enhances the sound of the piano (1) by holding and sustaining pitch longer, providing a longer and stronger signal, providing a higher volume or decibel level and having a decreased decibel fall-off as compared to conventional pianos utilizing wood bridge(s).

Abstract: 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.

Abstract: 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.

Abstract: A system relating to improving the usefulness of one or more electronic pianos by providing a multifunctional outer housing. Such outer housing is assembled substantially from modular components, preferably adapted for rapid set-up and breakdown. The housings are designed to generally resemble traditional acoustic pianos. The system incorporates a number of hardware components including an onboard computer device adapted to query and display information contained within a music-related database. A method of commercial distribution is also disclosed.

Abstract: An electronic keyboard musical instrument includes a body unit of the musical instrument and a stand attached to the body unit. The stand includes a pair of side boards disposed in a standing manner so as to interpose the body unit therebetween. The body unit includes a pair of lateral surfaces. Each of the pair of lateral surfaces faces one of the pair of side boards and includes a first engaging portion disposed thereon. Each of the pair of side boards includes a first engaged portion engaged by the first engaging portion and disposed on an inner lateral surface thereof, which faces one of the pair of lateral surfaces of the body unit. The first engaging portion and the first engaged portion are engaged with each other by at least one of the body unit and the stand being moved in a predetermined direction.

Abstract: A main case body of a musical instrument, which is capable of securing a degree of freedom of design. A case structure includes a lower front case, a lower rear case, and an upper case. The lower front case has a keyboard unit mounted therein. A bottom part extends in a front-rear direction of the lower front case. A key supporting part is formed such that it rises from the rear of the bottom part of the lower front case and extends in the key arrangement direction. A stopper body for stopping a free end of each key is formed such that it rises from the front of the bottom part of the lower front case and extends in the key arrangement direction. A battery case is formed by six battery terminal-associated parts arranged side by side for batteries between the key support part and the stopper body.

Abstract: An exterior structure for a keyboard instrument, which is capable of dramatically increasing the variation of producible types of keyboard instruments while suppressing the cost of molds. A lower case includes a front-side lower case LCf and a rear-side lower case LCr disposed rearward of the front-side lower case LCf in a side-by-side fashion. An upper case UC is disposed above the lower case. The front-side lower case LCf is fastened to the upper case UC, and the rear-side lower case LCr is fastened to the upper case UC, whereby the lower case is secured to the upper case UC.

Abstract: A piano (upright or horizontal) including a piano case having a case surface temporarily adhering markings. An upright piano including a piano case having a reversible display panel selectively positionable among a display position and a marking position. The panel has a decorative display side and a markable side, which temporarily adheres markings. The decorative display side faces outward while in the display position and the markable side faces outward while in the marking position.

Abstract: A top board structure is adapted to a keyboard instrument (e.g., a grand piano) having a pair of a top board rear and a top board front, which are arranged close to each other with a gap therebetween above the upper portion of a case. Herein, the gap is enlarged using sliders along which the top board front can be moved forwards and backwards as necessary, wherein the top board rear is allowed to be opened only when the top board front is positioned to enlarge the gap. Therefore, the user can easily hold the free end of the top board rear to be opened or closed with fingers. Thus, it is possible to prevent the player from being anxious that finger tips will be caught in the gap during an opening motion and/or a closing motion of the top board rear.

Abstract: Casing of an electronic keyboard musical instrument includes two discrete parts: a main casing section; and a rear casing section. The main casing section includes a bottom plate having a keyboard section placed thereon, a keyslip portion extending upward from the bottom plate in front of the keyboard section, and left and right side plates extending upward from the bottom plate at left and right sides of the keyboard section. The rear casing section includes a roof plate forming a rear upper surface of the casing, and a back plate extending downward from a rear edge of the roof plate. The rear casing section is detachably attached to the main casing section by means of a slidingly-attaching structure for slidingly attaching the rear casing section to the left and right side plates of the main casing section.

Abstract: A musical instrument body is provided with an array of keys at a front portion of the musical instrument body, and side plates at both side portions of the musical instrument body. A keyboard lid is mounted in the musical instrument body slidably between a closed position for covering the array of the keys and an open position for exposing the array of the keys. In case that the keyboard lid is shifted to the open position from the closed position, a front lid section moves rearward along a first guide recess together with a rear lid section, and when the rear lid section reaches a rearmost position, a rear lid supporting part is positioned in a second guide recess, while a front lid supporting part moves from the first guide recess to a third guide recess at a branch point according to release of connection between the front lid section and the rear lid section, and subsequently the front lid section is guided along the third guide portion.

Abstract: An upright keyboard musical instrument has an open/close board attached to the top position of a case, wherein the lower surface of the open/close board is subjected to mirror surface finishing and is supported by a lid prop, which is rotatably arranged in proximity to the top board to rotate about a support axis and is formed in an L-shape to have a plurality of support surfaces, realizing different angles for the open/close board being opened. The mirror surface of the open/close board projects images representing internal members of the case, such as an emblem and actions. By appropriately rotating the lid prop, it is possible to realize a desired angle for the open/close board, thus realizing tone volume control and visually entertaining effects in musical performance.

Abstract: A brace is provided so as to be able to maintain the open position of a lid of a keyboard musical instrument (grand piano), is able to rotate between an erect position that maintains an open position of lid and a collapsed position, and is able to be self-standing in the erect position. A position regulating section is provided between brace and body of grand piano that maintains an angle of rotation of brace at a constant angle.

Abstract: A brace to be able to maintain the open position of a lid of a keyboard musical instrument (grand piano), is able to rotate between an erect position that maintains an open position of lid and a collapsed position, and is able to be self-standing in the erect position. A position regulating section is provided between brace and body of grand piano that maintains an angle of rotation of brace at a constant angle.

Abstract: An electronic musical instrument which can be designed compact in longitudinal size and is excellent in acoustic characteristics. A musical instrument main body (1) has at least one keyboard device (12), and left and right lateral side panels (13 and 13?). A musical tone signal is generated by a controller (101) through operation of the keyboard device. The musical tone signal generated by the controller is acoustically converted by at least one speaker (31 or 31?). The musical instrument main body is supported by left and right front legs (2 and 2?) in the vicinity of the left and right lateral side panels of the musical instrument main body. An upper part of each front leg is secured to the musical instrument main body, and a lower part thereof extends to a floor surface on which the electronic musical instrument is placed. The speaker is held in a speaker box (3 or 3?). The speaker box serves as a supporting member that supports a rear side part of the musical instrument main body.

Abstract: An instrument main body has a keyboard including a plurality of keys and sound generators (for example, speakers) at a rear of the keyboard. At the rear of the keyboard, an upper surface cover portion composed of an upper panel, a operating panel, and so on is provided to cover an upper portion of the instrument main body. In the operating panel, tone escape portions are provided at right and left regions separated in a direction in which the keys of the instrument main body are arranged. Further, a rear panel is erected on the upper panel at a rear of the tone escape portions and having a width equal to or larger than the entire width of the keyboard in the direction in which the keys are arranged and a height larger than the length of the key in its longitudinal direction.

Abstract: A grand piano has a built-in music rack for keeping a music score book thereon, and the built-in music rack includes a guide laterally extending inside the piano cabinet and a desk board projecting over the piano cabinet and connected to the guide; when a pianist exerts force on the desk board, the guide permits the desk board to slide laterally so that the pianist can easily adjust the music score book to a proper position; since most of the guide is hidden inside the piano cabinet, the pianist feels the grand piano same in external appearance as a standard grand piano.

Abstract: A keyboard musical instrument such as a grand piano has a front top board and a rear top board with which an upper opening of a piano case is closed, and the rear top board is confronted with the front top board at the closing position; an automatic board spacer is provided between the front top board and the piano case, and automatically increases the gap after the rear top board leaves the closing position and decreases the gap at the arrival of the rear top board at the closing position, thereby preventing the user's fingers from pinch between the front and rear top boards.

Abstract: Casing of an electronic keyboard musical instrument includes two discrete parts: a main casing section; and a rear casing section. The main casing section includes a bottom plate having a keyboard section placed thereon, a keyslip portion extending upward from the bottom plate in front of the keyboard section, and left and right side plates extending upward from the bottom plate at left and right sides of the keyboard section. The rear casing section includes a roof plate forming a rear upper surface of the casing, and a back plate extending downward from a rear edge of the roof plate. The rear casing section is detachably attached to the main casing section by means of a slidingly-attaching structure for slidingly attaching the rear casing section to the left and right side plates of the main casing section.

Abstract: A self-locking keyboard bracket is disclosed to include a four-bar linkage, formed of a base frame, a connecting frame, a coupling frame, and a braking mechanism, a supporting frame fastened pivotally with the coupling frame, and an angle adjustment control unit for locking the supporting frame to the coupling frame at the desired angle by means of the operation of a locking bar with a cam. The braking mechanism uses a beveled block to mach with a beveled guide block to further control friction resistance between the base frame and the connecting frame, thereby achieving self-locking of the keyboard bracket.

Abstract: A safety device used on pianos to prevent the slamming of keyboard lid. Present invention uses a suction cup with a rod that can be folded down, so that it takes up very limited room, when it rod is down. When in use, if the piano keyboard lid is tilted towards the closing position, a rubber roller on top of the rod will contact the inner surface of the lid and stop the falling motion, preventing injuries to piano player's hand or fingers. The inner 90-degree angle of the lid will serve as a catch-well for the rubber roller to prop up the lid.

Abstract: Casing of an electronic keyboard musical instrument includes two discrete parts: a main casing section; and a rear casing section. The main casing section includes a bottom plate having a keyboard section placed thereon, a keyslip portion extending upward from the bottom plate in front of the keyboard section, and left and right side plates extending upward from the bottom plate at left and right sides of the keyboard section. The rear casing section includes a roof plate forming a rear upper surface of the casing, and a back plate extending downward from a rear edge of the roof plate. The rear casing section is detachably attached to the main casing section by means of a slidingly-attaching structure for slidingly attaching the rear casing section to the left and right side plates of the main casing section.

Abstract: An electronic keyboard musical instrument has a cabinet, in which a tone generating system is housed, and the cabinet offers a sloped top surface to assistant goods; while the player is composing a piece of music with the assistance of a personal computer system, by way of example, the player puts the computer keyboard on the sloped top surface, and manipulates the computer keyboard without taking unnatural attitude so that the player can continue the work for a long time.

Abstract: A keyboard musical instrument such as a grand piano has a front top board and a rear top board with which an upper opening of a piano case is closed, and the rear top board is confronted with the front top board at the closing position; an automatic board spacer is provided between the front top board and the piano case, and automatically increases the gap after the rear top board leaves the closing position and decreases the gap at the arrival of the rear top board at the closing position, thereby preventing the user's fingers from pinch between the front and rear top boards.

Abstract: A grand piano has a built-in music rack for keeping a music score book thereon, and the built-in music rack includes a guide laterally extending inside the piano cabinet and a desk board projecting over the piano cabinet and connected to the guide; when a pianist exerts force on the desk board, the guide permits the desk board to slide laterally so that the pianist can easily adjust the music score book to a proper position; since most of the guide is hidden inside the piano cabinet, the pianist feels the grand piano same in external appearance as a standard grand piano.

Abstract: The invention is a new system for simplifying the transport, set-up and use of electrically amplified musical instruments such as guitars and electric bases. It is comprised of a combination of components that are normally carried and set-up separately by the performer and thereby saves the performer considerable time and effort in transport and set-up of his equipment. Included in the invention are an integrated accessory case, guitar stand and pedal effects board. Additional features provide the special protection required for effects pedals during transport.

Abstract: A muter configured to be placed beneath the soundboard of a piano (in the case of a grand piano) in order to attenuate the downward transmission of sound. The muter employs blocks of acoustic foam, shaped to frictionally engage the structural elements of the piano in order to retain the muter within the piano. The muter is easily installed and removed. A version configured for use with an upright piano is also disclosed.

Abstract: A muter configured to be placed beneath the soundboard of a piano (in the case of a grand piano) in order to attenuate the downward transmission of sound. The muter employs blocks of acoustic foam, shaped to frictionally engage the structural elements of the piano in order to retain the muter within the piano. The muter is easily installed and removed. A version configured for use with an upright piano is also disclosed.

Abstract: A top board structure is adapted to a keyboard instrument (e.g., a grand piano) having a pair of a top board rear and a top board front, which are arranged close to each other with a gap therebetween above the upper portion of a case. Herein, the gap is enlarged using sliders along which the top board front can be moved forwards and backwards as necessary, wherein the top board rear is allowed to be opened only when the top board front is positioned to enlarge the gap. Therefore, the user can easily hold the free end of the top board rear to be opened or closed with fingers. Thus, it is possible to prevent the player from being anxious that finger tips will be caught in the gap during an opening motion and/or a closing motion of the top board rear.

Abstract: Casing of an electronic keyboard musical instrument includes two discrete parts: a main casing section; and a rear casing section. The main casing section includes a bottom plate having a keyboard section placed thereon, a keyslip portion extending upward from the bottom plate in front of the keyboard section, and left and right side plates extending upward from the bottom plate at left and right sides of the keyboard section. The rear casing section includes a roof plate forming a rear upper surface of the casing, and a back plate extending downward from a rear edge of the roof plate. The rear casing section is detachably attached to the main casing section by means of a slidingly-attaching structure for slidingly attaching the rear casing section to the left and right side plates of the main casing section.

Abstract: The present invention provides an exterior structure for an electronic keyboard instrument which has excellence in an outward appearance and which can be produced easily without detracting acoustic characteristics. In the present invention, a recess groove 9 extending in a direction in which keyboards 3 are arranged is formed at an upper portion of a back panel 4 of the electronic keyboard instrument 1, a locking edge 8a formed at an upper edge of a speaker cover 8 is fitted into the recess groove 9, and a lower edge of the speaker cover 8 is fixed to a lower portion of the back panel 4 by a screw 11. A lower portion of the back panel 4 is provided with a positioning stopper 4d which abuts against a back surface of a keybed 12 of the electronic keyboard instrument 1, and a fixing piece 4e which abuts against a lower surface of the keybed 12. A thick plate 14 having rigidness is provided around the periphery of the speaker-mounting hole 6.

Abstract: In an erroneous opening prevention mechanism according to the present invention, a hook and a hook support are loosely engaged with one another when a front lid, folded back on a back lid, is unfolded, or laid flat. If an attempt to raise the whole lid laid flat on a grand piano main body is made, it is impossible to raise the lid due to the locking of the hook and the hook support. When the front lid is folded back onto the back lid, on the contrary, the hook and the hook support are released from one another and, therefore, the whole lid can be raised. Accordingly, the erroneous opening prevention mechanism prevents the whole lid from being raised without first folding back the front lid.

Abstract: In an apparatus for opening an closing a top board of a grand piano, the top board is hingedly supported along one side thereof on an outer rim of the grand piano. The apparatus has a gear-type of jack made up of a jack main body fixed to a wooden fame of the grand piano, and a rod which is movable in a longitudinal direction through the jack main body and which supports the top board in a manner to open and close said top board.

Abstract: An effect support board including an effect mounting surface adapted to mount a guitar effect and including a cable connection opening adapted to allow the cable to pass from beneath the effect mounting surface for connection to the guitar effect on top of the effect mounting surface. The effect mounting surface supported by a frame.

Abstract: In an erroneous opening prevention mechanism according to the present invention, a hook and a hook support are loosely engaged with one another when a front lid, folded back on a back lid, is unfolded, or laid flat. If an attempt to raise the whole lid laid flat on a grand piano main body is made, it is impossible to raise the lid due to the locking of the hook and the hook support. When the front lid is folded back onto the back lid, on the contrary, the hook and the hook support are released from one another and, therefore, the whole lid can be raised. Accordingly, the erroneous opening prevention mechanism prevents the whole lid from being raised without first folding back the front lid.

Abstract: A grand piano has a split top board, i.e., plural sub-boards selectively opened by a pianist for emphasizing higher registered sounds or lower registered sounds and a visual display, which teaches the pianist how to tune the grand piano in the desired mode for selectively emphasizing the higher/lower registered sounds.

Abstract: A panel assembly for an electronic keyboard musical instrument is disposed over a substantially entire width in a direction in which keys are arranged. The panel assembly serves to cover electronic circuits or the like contained therein. The panel assembly is made up of two members of a front panel and a rear panel which are divided in the direction in which the keys are arranged. A rear end portion of the front panel is placed on top of a front end portion of the rear panel, and the front panel and the rear panel are connected together by self tapping screws to be screwed from a lower side into the lower surface of the rear end portion of the front panel.

Abstract: A grand piano having a lower lid attached thereto by hinges, and a lid designed for attachment to the bottom of a grand piano. The lid completely covers the bottom of the piano case when latched in a closed position. In its closed position, the lower lid protects the soundboard from damage (such as during transportation of the piano) and mutes the piano's sound. The lower lid of the invention is designed so that, when released from its closed position and pivoted downward into an open position, it will reflect sound from the soundboard outward from the front of the piano. Preferably, the angular orientation of the lower lid in its open position is chosen to reinforce and focus the projection of sound within a desired frequency range (for example, midrange sounds) to a desired target region. Such optimal angular orientation can be determined experimentally.