ROTARY KNOB FOR CONTROLLER OR RESEMBLING APPARATUS

摘要

PURPOSE: To facilitate preparation and to enable easy fitting by locking a switching handle and a base member so as to mutually couple them without being rotated. CONSTITUTION: A switching handle 29 is basically bowl-shaped and provided with a hollow cylindrical section 31 closing one side for partially receiving a base member 5. In order to facilitate the operation of the hollow cylindrical section 31, a wavy groove 33 is provided on its surface, for example. In order to couple the base member 5 and the switching handle 29 so as not to be rotated, the switching handle is provided with a 2nd hub 35. The 2nd hub has a lateral cross section matched with a 1st hub 9 in order to receive this 1st hub and is provided with flat areas 37 on inner and outer faces.