CASE AND KEYBOARD MUSICAL INSTRUMENT

To provide a case with reduced loss of appearance due to changes in external temperature even when members of different materials are combined, and a keyboard musical instrument equipped with this case.SOLUTION: A case 200 of a keyboard instrument 10 comprises: a lower case 220 made of a first mater...

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Bibliographische Detailangaben
Hauptverfasser: KATO HIROKATSU, MORIYA TAKAHIRO
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a case with reduced loss of appearance due to changes in external temperature even when members of different materials are combined, and a keyboard musical instrument equipped with this case.SOLUTION: A case 200 of a keyboard instrument 10 comprises: a lower case 220 made of a first material as a resin material and long in a left-right direction LR as one direction; a plurality of reinforcement members 300 (first reinforcement members 310, second reinforcement members 320) fixed to the lower case 220 and divided and arranged in the left-right direction LR using a steel plate as a second material smaller in linear expansion coefficient than the first material; a front case 250 formed long in one direction and fixed over the plurality of reinforcement members 300; and side cases (left side case 230, right side case 240) arranged adjacent to the front case 250 and fixed to one ends of the reinforcement members 300.SELECTED DRAWING: Figure 2 【課題】素材の異なる部材を組み合わせても、外気温の変化により外観が損なわれることを低減したケース及びこのケースを備えた鍵盤楽器を提供する。【解決手段】鍵盤楽器10のケース200は、材料を第1素材である樹脂材料とし、一方の方向である左右方向LRに長い下側ケース220と、下側ケース220に固定され、第1素材の線膨張係数より小さい材料としての第2素材である鋼板を用いて左右方向LRに分割して配置される複数の補強部材300(第1補強部材310、第2補強部材320)と、一方の方向に長く形成されて、複数の補強部材300に跨り固定される前側ケース250と、前側ケース250に隣接して配置され、補強部材300の一端に固定される側面ケース(左側面ケース230、右側面ケース240)と、を備える。【選択図】図2