Exterior structure for keyboard instrument
AssigneeYamaha Corporation
InventorsDaisuke Haba, Yuji Sakurai, Masao Sato, Toshiyuki Aiba
Life of this patent
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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.
Claims14
An exterior structure for a keyboard instrument, including a case structure for mounting a keyboard unit therein, comprising:
- a lower case including a front-side lower case, and a rear-side lower case disposed rearward of said front-side lower case in a side-by-side fashion;
- and
- an upper case disposed above said lower case,
- wherein said front-side lower case is fastened to said upper case and said rear-side lower case is fastened to said upper case, whereby said lower case is secured to said upper case.
An exterior structure for a keyboard instrument, including a case structure for mounting a keyboard unit therein, comprising:
- an upper case including at least one first fastening part and at least one second fastening part;
- a front-side lower case including at least one first fastening part-associated part associated with said first fastening part of said upper case;
- and
- a rear-side lower case disposed below said upper case and rearward of said front-side lower case, and including at least one second fastening part-associated part associated with said second fastening part of said upper case,
- wherein said first fastening part of said upper case and said first fastening part associated part of said front-side lower case are fastened to each other, and said second fastening part of said upper case and said second fastening part-associated part of said rear-side lower case are fastened to each other, whereby said front-side lower case and said rear-side lower case are secured to said upper case to thereby construct the case structure.
An exterior structure for a keyboard instrument, including a case structure, comprising:
- a plurality of respective types of upper cases;
- a plurality of respective types of rear-side lower cases;
- and
- a single type of a front-side lower case for supporting a keyboard unit,
- wherein the case structure is constructed by selectively mounting one of said plurality of respective types of upper cases and one of said plurality of respective types of rear-side lower cases to said front-side lower case.
An exterior structure for a keyboard instrument, including a case structure for mounting a keyboard unit therein, comprising:
- an upper case;
- a front-side lower case;
- a rear-side lower case disposed below said upper case and rearward of said front-side lower case;
- and
- a fastening device,
- wherein the case structure is constructed by assembling said upper case, said front-side lower case, and said rear-side lower case, and
- wherein said front-side lower case and said rear-side lower case each have a wall extending in a substantially vertical direction, and
- wherein said wall of said front-side lower case and said wall of said rear-side lower case are arranged close to each other in opposed relation, when said upper case, said front-side lower case, and said rear-side lower case are assembled to each other, and fastened by said fastening device.
An exterior structure for a keyboard instrument, including a case structure for mounting a keyboard unit therein, comprising:
- an upper case;
- a front-side lower case including a bottom plate part;
- a rear-side lower case disposed below said upper case and rearward of said front-side lower case;
- and
- a fastening device,
- wherein the case structure is constructed by assembling said upper case, said front-side lower case, and said rear-side lower case,
- said front-side lower case having a gutter-shaped part formed such that said gutter-shaped part rises from a rear part of said bottom plate part to define a recess opening downward, said gutter-shaped part having a keyboard unit-supporting part formed in an upper part thereof, for supporting the keyboard unit,
- said rear-side lower case having at least one connecting protrusion formed at a front part thereof in a manner protruding upward for being fitted into the recess of said gutter-shaped part, and
- said fastening device fastening said upper case, the keyboard unit, said front-side lower case, and said rear-side lower case to each other via contact parts of said gutter-shaped part and said connecting protrusion where said gutter-shaped part and said connecting protrusion are brought into contact with each other in a vertical direction, by fitting said connecting protrusion into the recess of said gutter-shaped part.
Dependencies are inferred from the claim text.