基本信息:
- 专利标题： 用于电子钢琴的键开关
- 专利标题（英）：Key switch for electronic piano
- 申请号：CN201210366660.2 申请日：2012-09-28
- 公开(公告)号：CN103035231A 公开(公告)日：2013-04-10
- 发明人： 岩濑胜彦 , 石田秀行
- 申请人： 株式会社河合乐器制作所
- 申请人地址： 日本静冈县浜松市中区寺岛町200番地
- 专利权人： 株式会社河合乐器制作所
- 当前专利权人： 株式会社河合乐器制作所
- 当前专利权人地址： 日本静冈县浜松市中区寺岛町200番地
- 代理机构： 中国专利代理(香港)有限公司
- 代理人： 宋宝库; 杨楷
- 优先权： 2011-211815 2011.09.28 JP; 2011-211818 2011.09.28 JP
- 主分类号： G10H1/34
- IPC分类号： G10H1/34
A key switch for an electronic piano, which makes it possible to increase an allowable range for shift of a movable contact without increasing the size of the key switch of the three-contact type. The key switch includes a substrate having first to third stationary contacts arranged thereon side by side in the lengthwise direction of a pivotal member as one of a key and a hammer. Each stationary contact has a common contact and a non-common contact. The common contact has an extended portion extending between two non-common contacts. The key switch has first to third movable contacts arranged side by side on an elastic switch body, for being sequentially brought into contact with the common contacts and non-common contacts of the stationary contacts as the switch body is pressed by the pivotal member, to thereby output signals indicative of key depression information.
公开/授权文献:
- CN103035231B 用于电子钢琴的键开关 公开/授权日：2016-05-11