To provide a trim switch which supplies trim speed responding to the trim operation touch of an operator without using other variable resistors in the trim switch for a radio-controlled transmitter.
This trim switch 1 is provided with an inverse T-shaped lever 3 which swings about a shaft 2 and two pressure sensitive rubber switches 6, 6 operated by the lever 3. The electric resistance value of the pressure sensitive rubber switch 6 reduces in proportion to the operation power. A microcomputer generates a control signal of a trim speed from the output of the sensitive pressure rubber switch 6. The operation power applied on the lever 3 by an operator is in direct proportion to the trim speed linearly. When the operation power is large, the trim speed increases rapidly so as to instantly and largely move the trimming quantity and quicken the trimming. When the operation power is small, the trim speed is small so that it takes a long time for trimming. The trimming matched with the touch of the finger tip of the operator can be performed. The will of the operator is reflected on the output of the trimming.
NAKAHARA TOSHIAKI
TAKAO AKIRA
NEMOTO YASUO
ANEBA AKIRA
TANAKA MASAHIRO
