| 摘要 |
Operating means for the operating of a switch (2) in an electric current circuit, comprising an inner cylinder (6) connected to the switch, with a push rod (7) axially displaceable in the inner cylinder between an outer resting position and an inner operative position wherein the push rod acts on the switch to break the current circuit, and wherein a the push rod during displacement to the active position passes and is releasably locked in the active position by being arrested behind a spring member supported on the inner cylinder. The movement of the push rod in a direction towards the resting position is axially limited by an outer cylinder which is journalled about the inner cylinder and the cylinders are inter-locked in the coupled position through the aid of snap-lock means acting between and being encased between the cylinders in their interconnected position.
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