发明名称 KEYBOARD DEVICE
摘要 <p>PROBLEM TO BE SOLVED: To provide a keyboard device which is capable of protecting parts and maintaining key touch operation stable for a long period of time by suppressing the outflow of a lubricant. SOLUTION: A partition wall part 35 is extended upward from the front of a bas part 39, extends approximately perpendicularly with a slight backward inclination and partitions a pivotal supporting part E side where a turning shaft part 33 exists and a rear region side where a switch substrate 23, etc., exist, thereby shutting off the backward splashing and outflow of the lubricant backward from the pivotal supporting part E. A floor part 36 extends forward from the middle part of the partition wall part 35 and a top surface 36a inclines slightly upward toward the front. The segment of a dog leg shape formed by a partition wall part front 35a and a floor part top surface 36a functions as a stagnation part for the lubricant splashed and discharged from the pivotal supporting part E, by which the splashing and outflow are additionally suppressed.</p>
申请公布号 JP2001236070(A) 申请公布日期 2001.08.31
申请号 JP20000049201 申请日期 2000.02.25
申请人 YAMAHA CORP 发明人 MORI NAOHISA;NISHIDA KENICHI;ISHIHARA HIDEKI
分类号 G10H1/34 主分类号 G10H1/34
代理机构 代理人
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