| 摘要 |
An impact body, which carries the percussion cap of the fuse(4) has an inwardly and rearwardly extending frustoconical recess in its front surface, the recess terminating at the front surface of the percussion cap(108). A conventional inertial sphere(12) is normally disposed within the first recess during the acceleration phase of the shell flight and is movable forwardly in an inertial manner toward the shell head(2) during a subsequent deceleration of the shell. The firing pin(3) in the shell cap is in turn formed from a forward cylindrical portion(3a), which defines a sphere-receiving annular recess(11) with the surrounding wall of the shell head.
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