Abstract: A switch apparatus includes a case, a button provided on the case and can be operated by pushing from a first direction, and a shaft provided in a space within the case and configured to move together with the button along an axial direction in response to an operation on the button, wherein, within the space, at least one magnet is fixed to either the case or the shaft, and at least one magnetic body is fixed to a remaining one, and wherein the at least one magnet and the at least one magnetic body are attracted to each other by a magnetic force along the axial direction in a first state in which the button protrudes from the case in the first direction more than in a second state.

Abstract: A case includes an exterior member including a first surface including an external surface of a first sheet and a second surface connected to the first surface, and an attachment member to which the exterior member is attached, having a facing surface disposed to face the second surface, and arranged in such a manner that a projecting end of the facing surface projects further than the first surface when viewed in cross section.

Abstract: A button device includes a substrate with a hole; a button cap arranged above the substrate in a position corresponding to the holes in the substrate; and a projecting portion protruding toward the button cap through the hole in the substrate.

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 rotary operation device according to an embodiment of the present disclosure includes: a rotation detection unit configured to detect rotation; a knob; and an accommodation unit configured to accommodate the rotation detection unit, wherein the knob includes an operation portion configured to rotate in interlock with the rotation detection unit, and a stopper portion disposed more on a radially inner side than an outer edge portion of the operation portion, and the accommodation unit includes an engaging portion configured to be engaged with the stopper portion.

Abstract: An electronic keyboard instrument includes a keyboard provided on a player's side, a case including a back panel including a first sound radiation hole portion, an upper panel provided contiguously with the back panel, and a keyboard installation portion disposed in such a manner as to correspond to the keyboard, a speaker disposed in such a manner as to correspond to the first sound radiation hole portion, and a magnetic shielding member including a magnetic shielding material and disposed between the keyboard and the sound radiating section and fixed to the upper panel and the back panel in such a manner as to span the upper panel and the back panel.

Abstract: A case of a keyboard instrument includes a lower case formed from a resin material which is a first material and extended long in a left-right direction which is a first direction, plural reinforcement members (a first reinforcement member, a second reinforcement member) fixed to the lower case, made from a sheet of steel which is a second material whose linear expansion coefficient is smaller than a linear expansion coefficient of the first material, and disposed to be divided in the left-right direction, a front case formed in such a manner as to extend long in the first direction and fixed to each of the plural reinforcement members, and side cases (a left side case, a right side case) disposed adjacent to the front case and fixed to ends of the reinforcement members.

Abstract: A manipulator, comprises a light source that emits light; and an operation member rotationally operatable around an axis by a user, the operation member having a substantially disk shape and including a light guide member that guides light incident from the light source and emits the light to an outside in radical directions of the substantially disk shape from an outer peripheral portion thereof, and a reflecting member reflecting a portion of the light guided by the light guide member in a direction perpendicular to the radial directions at said outer peripheral portion.

Abstract: A rear panel of an electronic keyboard instrument has a frame portion including multiple sound radiation holes, and the frame portion has a first hole frame including a hole forming surface of the sound radiation hole and a second hole frame including a hole forming surface of the sound radiation hole which is longer in a thickness direction of the frame portion (a Y-axis direction) than the first frame.

Abstract: A sound radiation apparatus includes a speaker, a first cover having an opening area provided to be superposed above at least a sound radiation port of the speaker and made up of multiple opening portions at a location superposed above the speaker, a second cover superposed on a front side of the first cover while surrounding the opening area of the first cover, and a saran net covering the first cover and a front side of the second cover and bonded to the second cover, wherein the second cover and the saran net are bonded together at an area on the second member excluding a portion surrounding the opening area of the first cover with a first adhesive and an area on the second cover surrounding the opening area of the first cover with a second adhesive having a higher bonding strength than that of the first adhesive.

Abstract: A rear panel 15, which is an external member, includes a frame portion 110 including multiple sound radiation holes 150 including a first sound radiation hole 160-1 and a second sound radiation hole 160-2, a first sloping portion 160b disposed in the frame portion 110 with a first sloping surface 161a oriented in a first direction 161c, the sloping surface 161a being disposed within an area of the first sound radiation hole 160-1 in such a manner as to slope from a thickness direction (a Y-axis direction) of the frame portion 110, and a second sloping portion 162b disposed in the frame portion 110 with a sloping surface 162a oriented in a second direction 162c which differs from the first direction 161c, the sloping surface 162a being disposed within an area of the second sound radiation hole 160-2 in such a manner as to slope from the thickness direction (the Y-axis direction) of the frame portion 110.

Abstract: A keyboard instrument includes a keyboard and an instrument case having a through hole penetrating therethrough from a top surface side to a bottom surface side and a positioning part configured to decide on a position of a music stand when a part of the music stand is disposed in the through hole.

Abstract: A keyboard instrument includes a keyboard and an instrument case having a through hole penetrating therethrough from a top surface side to a bottom surface side and a positioning part configured to decide on a position of a music stand when a part of the music stand is disposed in the through hole.