| 摘要 |
A mechanical drive is provided for actuating the tuning means in radio equipments for converting a uniform rotary movement into a non-uniform rotary movement with the aid of camplates. The two camplates of almost the same shape and size are arranged paraxially next to each other, the face surfaces thereof almost touch each other, and said camplates are in connection with one another via a tape which, upon actuation of the drive shaft, extends from the circumference of one camplate to the circumference of the other camplate. Both the driving shaft and the driven shaft are resiliently braced so that the tape in every position of the drive is fully applied to said camplates.
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