Abstract: A stand includes a lateral spanning member, a connecting member configured to be fixed to the lateral spanning member and having a first engagement portion and a second engagement portion, and a front leg comprising a first engagement target portion configured to be brought into engagement with the first engagement portion and a back leg comprising a second engagement target portion configured to be brought into engagement with the second engagement portion, and a first engagement construction in which the first engagement target portion is brought into engagement with the first engagement portion and a second engagement construction in which the second engagement target portion is brought into engagement with the second engagement portion are different from each other.

Abstract: An instrument stand includes a connector configured to fix a horizontal spanning member and including an instrument attachment portion, a pedal frame fixing portion, and a leg attachment portion.

Abstract: A keyboard instrument stand for a keyboard instrument set includes a leg portion configured to support a keyboard instrument, a pedal device, and a pedal frame configured to fix the pedal device of which at least a part is disposed further backwards than a backmost end portion in a short direction of the keyboard instrument.

Abstract: A stand includes a horizontal spanning member, a connector including a polygonal portion and to which the horizontal spanning member is fixed, and a first leg member including a first leg main body having a rectangular horizontal cross section and configured to be fixed to a first surface of the polygonal portion.

Abstract: The present invention includes a keyboard lid which is constituted by a front lid and a rear lid whose lengths in the front-rear direction of a keyboard section provided in an instrument case are different from each other being foldably connected to each other by a coupling member, and openably and closably covers the keyboard section; a rotary fulcrum section which supports the rear end portion of the rear lid such that the rear lid is rotatable with respect to the instrument case, and by which the keyboard lid is mountain-folded and the front lid is held upright above the rear portion of the keyboard section when the keyboard lid exposes the keyboard section; and a guide section which guides the front end portion of the front lid in the front-rear direction of the keyboard section. Accordingly, the keyboard lid can be stably and smoothly opened or closed.

Abstract: The present invention includes a keyboard lid which is constituted by a front lid and a rear lid whose lengths in the front-rear direction of a keyboard section provided in an instrument case are different from each other being foldably connected to each other by a coupling member, and openably and closably covers the keyboard section; a rotary fulcrum section which supports the rear end portion of the rear lid such that the rear lid is rotatable with respect to the instrument case, and by which the keyboard lid is mountain-folded and the front lid is held upright above the rear portion of the keyboard section when the keyboard lid exposes the keyboard section; and a guide section which guides the front end portion of the front lid in the front-rear direction of the keyboard section. Accordingly, the keyboard lid can be stably and smoothly opened or closed.

Abstract: A keyboard musical instrument of the present invention includes a musical instrument case which is substantially in a box shape and whose front side is open upward, a keyboard section which is arranged in the musical instrument case and exposed to the upper front side of the musical instrument case, a keyboard lid which has a front lid and a rear lid that are foldable and coupled together and openably and closably covers the upper side of the keyboard section, a lid guide section which guides the keyboard lid to be folded and placed near the rear portion of the keyboard section when guiding the keyboard lid to expose the keyboard section upward, a loudspeaker which is arranged in the musical instrument case and positioned behind the keyboard section, and second sound emission holes provided in the upper portion of the musical instrument case.

Abstract: In the present invention, a keyboard unit includes a keyboard section placed in a unit case on a bottoms plate, a keyboard lid which has a front lid and a rear lid that are foldable and coupled together, and operably and closably covers the keyboard section, and a lid guide section which guides the keyboard lid so that it opens or closes.

Abstract: An opening and closing mechanism for a keyboard cover that includes a front cover half and a rear cover half coupled foldably by a hinge. The mechanism comprises a first guide that guides the front cover half backward at a front end thereof along the keyboard when the cover is opened and a second guide that backward guides the rear cover half at a front edge thereof along the keyboard and guides the rear cover half obliquely downward at a rear end thereof after the keyboard, thereby rendering the rear cover half upstanding when the cover is opened. Thus, the second guide prevents the rear and front cover halves from lowering at their front and rear ends, respectively, thereby allowing the keyboard cover to be opened and closed smoothly.

Abstract: An opening/closing mechanism for a keyboard cover 3, comprising a front cover half 12 and a rear cover half 13 coupled foldably by a hinge 14 and provided within an musical instrument. The mechanism comprises a first guide 15 that guides the front cover half 12 backward at its front end 12a along the keyboard 2 when the cover 3 is opened and a second guide that backward guides the rear cover half 13, foldable at the hinge 14, at its front edge 13b along the keyboard 2 and then guides the rear cover half 13 obliquely downward at its rear end 13b after the keyboard 2, thereby rendering the rear cover half 13 upstanding. Thus, when the keyboard cover 3 is opened, the second guide 16 guides the rear cover half 13 at its front end 13a backward while guiding the rear cover half 13 at its rear end 13b and then obliquely downward after the keyboard 2, thereby rendering the rear cover half 13 upstanding.

Abstract: A piano action device for electronic keyboard musical instruments includes a key arranged on a keyboard chassis so as to be swingable up and down, a first hammer arm swung in response to the depression of the key, switch unit for indicating a start of generating musical sounds to be generated when it is pushed, and a second hammer arm swung in response to the swinging of the first hammer arm to push the switch unit.