| 摘要 |
A deadman switch adapted to form an integral part of a hand held end connector of a hazardous hand tool, the deadman switch comprising a housing integrally formed with the connector, the housing including switching means arranged to control operation of the tool, a handle pivotally supported by the housing to be displaceable from an off position to an on position in which the handle activates the switching means to control operation of the tool, and means to urge the switching means and handle to the off position, whereby in use the connector is hand held to depress the handle to activate the switching means and cause operation of the tool.
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