| 摘要 |
A delayed shutter release mechanism for use with cameras wherein the shutter is actuated in response to completion of an electric circuit has two terminals which are connectable to separate contacts of a switch in the body of the camera. The two terminals are electrically connected with each other in response to pivoting of one of two levers into contact with the other lever. The levers have followers which track a rotary cam having several equidistant flanks. The followers are located at one side of a flank when the release mechanism is ready for use, namely, when a spring motor stores sufficient energy to rotate the cam in response to actuation of a trigger. The levers remain out of contact with each other while a flank of the cam moves toward and past one of the followers. The one follower is then caused to change its angular position and to place the respective lever into contact with the other lever. The levers remain in contact during the interval which elapses while the flank of the cam moves between the two followers. The distance between the two followers is adjustable to thereby change the length of the interval during which the two levers contact each other.
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