Abstract: A music reproduction apparatus in which a first reproduction unit that has a first retainer capable of retaining a first external audio source and a second reproduction unit that has a second retainer capable of retaining a second external audio source are arranged next to each other. The music reproduction apparatus includes an opening-closing door that covers the first reproduction unit and the second reproduction unit in an openable and closable manner. The second retainer is positioned at an accommodation position on the deeper side than the opening-closing door in the state covered by the opening-closing door. When the opening-closing door is moved to uncover the second retainer, the second retainer is drawn from the accommodation position to move to a draw out position.

Abstract: A rotary element assembly structure in which a rotary element 53 is assembled to a tip side of a hollow shaft B1 provided upright on a pedestal 60. A cylindrical portion 53c for fitting with the hollow shaft is provided to a rotation center portion of the rotary element. In the cylindrical portion, a hook strut portion 53s that has a hook portion 53f overhanging in the radial direction at its tip side and that extends substantially in the fitting direction is arranged. A base end portion of the hook strut portion and a base end portion of the cylindrical portion are coupled with each other by a resin-made thin plate portion 53p. A small diameter portion B1s which is smaller in diameter than a hollow portion B1d of the hollow shaft is provided on the tip side of the hollow shaft. The radius of the overhang tip portion of the hook portion is set to be greater than the radius of the small diameter portion of the hollow shaft, and to be smaller than the radius of the hollow portion.

Abstract: A rotary element assembly structure in which a rotary element 53 is assembled to a tip side of a hollow shaft B1 provided upright on a pedestal 60. A cylindrical portion 53c for fitting with the hollow shaft is provided to a rotation center portion of the rotary element. In the cylindrical portion, a hook strut portion 53s that has a hook portion 53f overhanging in the radial direction at its tip side and that extends substantially in the fitting direction is arranged. A base end portion of the hook strut portion and a base end portion of the cylindrical portion are coupled with each other by a resin-made thin plate portion 53p. A small diameter portion B1s which is smaller in diameter than a hollow portion B1d of the hollow shaft is provided on the tip side of the hollow shaft. The radius of the overhang tip portion of the hook portion is set to be greater than the radius of the small diameter portion of the hollow shaft, and to be smaller than the radius of the hollow portion.

Abstract: A music reproduction apparatus in which a first reproduction unit that has a first retainer capable of retaining a first external audio source and a second reproduction unit that has a second retainer capable of retaining a second external audio source are arranged next to each other. The music reproduction apparatus includes an opening-closing door that covers the first reproduction unit and the second reproduction unit in an openable and closable manner. The second retainer is positioned at an accommodation position on the deeper side than the opening-closing door in the state covered by the opening-closing door. When the opening-closing door is moved to uncover the second retainer, the second retainer is drawn from the accommodation position to move to a draw out position.