US 12,300,205 B2
Rotary operation device, and electronic keyboard instrument
Hirokatsu Katoh, Kawasaki (JP)
Assigned to CASIO COMPUTER CO., LTD., Tokyo (JP)
Filed by CASIO COMPUTER CO., LTD., Tokyo (JP)
Filed on Mar. 2, 2023, as Appl. No. 18/177,327.
Claims priority of application No. 2022-048927 (JP), filed on Mar. 24, 2022.
Prior Publication US 2023/0306941 A1, Sep. 28, 2023
Int. Cl. G10H 1/34 (2006.01); G05G 1/10 (2006.01)
CPC G10H 1/34 (2013.01) [G05G 1/10 (2013.01); G10H 2220/265 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A rotary operation device comprising:
a rotation detection unit configured to detect rotation;
a knob; and
an accommodation unit configured to accommodate the rotation detection unit, wherein
the knob includes an operation portion configured to rotate in interlock with the rotation detection unit, and a stopper portion disposed more on a radially inner side than an outer edge portion of the operation portion, and
the accommodation unit includes an engaging portion configured to be engaged with the stopper portion.