PURPOSE: To aim at simplification in a jamming countermeasure of the whole device by operating the switch of a device body with a grip which is detatachable from the device body and vice versa and has not any electrical parts.
CONSTITUTION: In case of electrical equipment, necessitating various modes for gripping position of a body such as, for example, a spectroscopic type colorimeter or the like, there is provided with a grip C detachable from a body part A and vice versa, and operation of a switch SW2 of this device is carried out via this grip C. This switch SW2 is housed in an electromagnetic shield box A1 together with other electric parts and it is subjected to the required jamming countermeasure. Operation of the switch SW2 is performed by slide motion of an operating rod C6 through the push-in operation of a control button 21 of the grip C. Since there is no cause of wave generation in this grip C, it is unnecessary to do any troublesome wave shielding.
SUGIYAMA MASAMI
INABA MASAHITO
