| 摘要 |
A child-proof protective overcap for an aerosol can. The can has a valve stem cap and an actuator nozzle centered therein, the valve stem cap being retained on the can by frictional engagement thereof with an annular lip on the valve mounting seam at the top of the breast portion of the can. The overcap has an inverted cup-shape with a circular, stiffly resilient top and two concentric skirts depending therefrom. The inner skirt extends circumjacently to the valve stem cap and the outer skirt extends into the annular groove at the seam between the body and breast portion of the can. The inner skirt and the valve stem cap have interfitting locking means. The resilient top biases the interfitting means into locking engagement and the locking means are disengagable by flexure of the top of the overcap and axial movement of the inner skirt followed by rotation of the overcap. In the preferred embodiment the interfitting means are bayonet-type lugs and ramps.
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