The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 2016
Filed:
Oct. 09, 2015
Yamaha Corporation, Hamamatsu-shi, Shizuoka-ken, JP;
Yamaha Corporation, Hamamatsu-shi, JP;
Abstract
A keyboard device includes: key units each including a coupler and white or block keys coupled to the coupler at their rear ends; and a key frame assembled to the key frame and supporting the couplers stacked on each other. The coupler of one of the key units is provided with a hook having an engaging portion. The coupler of each of at least one other key unit has a through hole at a position corresponding to the hook. The key frame has a through hole at a position corresponding to the hook. The couplers of the key units are secured on the key frame using the engaging portion in a state in which the hook extends through the through hole of the coupler of each of the at least one other key unit and the through hole of the key frame.