| 摘要 |
An automatic safety mechanism for airless spray equipment such as airless spray guns of the type having a trigger mechanism for actuating a gun spraying mechanism is provided. The safety mechanism comprises a lock mechanism for automatically locking the trigger mechanism in an "off" or non-spraying position upon full release thereof, including a locking member spring biased and disposed so that upon full release of the trigger mechanism the locking member is automatically operatively interposed between the trigger mechanism and hand-grip element of the spray gun to obstruct actuating movement of the trigger mechanism. The locking member is adapted for simple manipulation by the spray gun operator to disengage the lock mechanism and permit actuating movement of the trigger mechanism. The spray gun operator is thus enabled to fully operate the spraying mechanism with one hand and shut off the flow of paint without engagement of the lock mechanism; at the same time the operator is protected from inadvertent actuation of the spraying mechanism, since after the trigger mechanism has been fully released, the lock mechanism must be intentionally disengaged to permit actuating movement of the trigger.
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