To easily change a range of rotation of a rotor by a general-purpose rotor case, and to prevent restrictions on the range of the rotation of the rotor from being easily disabled.
When a second plate key 50B having upper and lower surfaces each equipped with one recess 51A is inserted into the keyhole 23 of the rotor 22 located in a neutral position, the recess 51A faces an upper end of a mode pin 28A. When a clockwise turning force acts on the rotor 22, an upper end of the mode pin 28A is moved upward in such a manner as to be fitted into the recess 51A, and a lower end thereof recedes from a groove portion 212; and the rotor 22 is rotated clockwise together with the plate key 50B. Even when a counterclockwise turning force acts on the rotor 22, a mode pin 28B cannot be moved upward by abutting on the plate key 50B, and the rotor 22 cannot be rotated counterclockwise.
FUJIMOTO MASAJI
ONISHI YASUO
KASHIWAGI TAKESHI
| JPH066649U | 1994-01-28 | |||
| JP2008057193A | 2008-03-13 | |||
| JPH08185767A | 1996-07-16 | |||
| JPH05287942A | 1993-11-02 | |||
| JPS6147362U | 1986-03-29 | |||
| JP2008057193A | 2008-03-13 | |||
| JP2007277921A | 2007-10-25 |
Toshio Ozawa