The invention provides an automatic latch having a first latch member and a second latch member. The first latch member may include an opening and a cam structure. The second latch member may include a pivoted structure that includes a protrusion and a cam surface. The second latch member may also include a spring having first and second spring portions. As the cam structure is advanced towards the cam surface of the pivoted structure such that the cam structure passes over the protrusion of the pivoted structure, the first spring portion applies a bias causing the protrusion to protrude through the opening of the first latch member when the cam structure clears the protrusion. Thus, the latch is placed in a locked configuration. When in the locked configuration, the second spring portion applies a bias that tends to separate the first latch member from the second latch member, so that the latch may spring apart when intentionally unlocked.