| 摘要 |
A detonator which is protected against triggering by shock waves or the like has a housing, a firing cap in the housing and a firing pin movable lengthwise in the housing and having a free end adapted to impact the firing cap. A biasing spring permanently biases the firing pin towards the firing cap, and a firing-pin retainer is provided in form of a spring-wire clip having a circumferentially incomplete retaining portion located in the housing and received in an annular channel composed of two registering annular grooves formed in an outer circumferential surface of the firing pin and a juxtaposed inner circumferential surface of the housing.
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