发明名称 KEYBOARD DEVICE OF ELECTRONIC MUSICAL INSTRUMENT
摘要 PROBLEM TO BE SOLVED: To provide a keyboard device capable of obtaining more stable friction force by bringing a contact part of a friction material and a sliding part to the friction material into a flat-surface state.SOLUTION: A key 2 rocks with a support point as a center, according to key pressing and depressing operation of a player. A key support section is provided on a key frame 4 for supporting a support point of the key 2 so as to be freely rocked. The key 2 includes a key pressing section 24, and a pair of right and left side sections 25 which is hung down from both sides in key lining direction of the key pressing section 24, and which is extended along a longitudinal direction of the key 2. A frame side counter section 48 facing the pair of right and left side sections 25 is provided on the key frame 4. The frame side counter section 48 is provided separately from the key support section near the key support section. The friction member 10 is fixed to the frame side counter section 48, and friction force is generated to the key 2 by sliding movement against the side section 25 of the key 2 according to rocking of the key 2, in the operation and holding time of the key 2.
申请公布号 JP2011017958(A) 申请公布日期 2011.01.27
申请号 JP20090163524 申请日期 2009.07.10
申请人 YAMAHA CORP 发明人 NISHIDA KENICHI;WATANABE KEISUKE
分类号 G10B3/12;G10H1/34 主分类号 G10B3/12
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