| 摘要 |
PROBLEM TO BE SOLVED: To provide a register fitted to the rear end of an operation knob and capable of regulating the vertical rotation amount of a connection mechanism connected to a vertical fin with a simple configuration, and greatly suppressing collision sound generated by the abutment of the connection mechanism on the edge of a notched part while securing the strength of the vertical fin by reducing the size of the notched part formed in the vertical fin.SOLUTION: A connection mechanism 14 for connecting an operation knob 9 fitted to a horizontal fin 8 and the center vertical fin 6A of a plurality of vertical fins 6 includes a stick member 28 rotatably fitted at the rear end of the operation knob 9, and a ring member 18 rotatably fitted at a notched part 15 formed in the center vertical fin 6A and having an insertion part 20 for inserting the connection shaft part 30 of the stick member 28, and the connection part 30 of the stick member 28 is configured to vertically move in the notched part 15 while being regulated by the insertion part 20 of the ring member 18.SELECTED DRAWING: Figure 5 |
