Keyboard device for electronic musical instrument
US8802952B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2013 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Feb 15, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10H1/346
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A keyboard device includes plural white and black keys 11w,11b that rock according to a key depression/release operation. Positions of key support portions 13w,13b supporting the plural white and black keys 11w,11b in the longitudinal direction are set to be different from one another. The keyboard device also includes hammers 16w,16b that rock with the rocking movement of the plural white and black keys 11w,11b. The plural white and black keys 11w, 11b include drive units 11w1, 11b1 that drive the hammers 16w, 16b respectively. The pivot center of the hammer 16b is located posterior to the pivot center of the hammer 16w. An upper-limit stopper 21 and a lower-limit stopper 20, which restrict the rocking movement of the hammers 16w, 16b are provided to extend in the lateral direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.