Housing structure of electronic keyboard musical instrument
US7659470B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2008 |
| Grant date | Feb 9, 2010 |
| Priority date | — |
| Expiry date | Dec 17, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10H1/34
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A housing structure of an electronic keyboard musical instrument, in which a pivotable upper case can be mounted to and dismounted from a lower case when the upper case is in a semi-open state, thereby improving safety and the working efficiency at the time of assembly and maintenance. Pivot coupling parts each include an engagement protrusion comprised of a narrow-width portion and a wide-width portion. An upper case is formed with engagement holes each comprised of a narrow-width counterpart permitting the narrow-width portion to be inserted thereinto and a wide-width counterpart permitting the wide-width portion to be inserted thereinto. By moving the upper case, having a posture thereof corresponding to a mountable/dismountable angle range, in the direction in which the wide-width portions project, the wide-width portions can be inserted into and removed from the wide-width counterparts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.