Lock

A lock for installation in a door leaf defining a first plane, the lock comprising:

• a housing;
• a bolt moveable relative to the housing between a retracted position, and an extended position in which a distal portion of the bolt protrudes from an opening in the housing, wherein the bolt is resiliently biased into the extended position;
• and
• a lock mechanism configured to selectively engage the bolt in order to selectively retain the bolt in the retracted position;
• wherein the distal portion of the bolt comprises a sloped upper shoulder and a sloped lower shoulder, such that the bolt is moveable into the retracted position in response to a force applied in a vertical direction with respect to the first plane to at least one shoulder;
• wherein the lock mechanism comprises a follower and a cam, wherein the follower is configured to rotate the cam, and wherein the cam is configured to selectively engage a corresponding surface of the bolt;
• wherein the follower is rotatable between:
• a first rotational position in which the cam is disengaged from the bolt such that the bolt is resiliently biased into the extended position;
• and
• a second rotational position in which the cam engages the corresponding surface of the bolt to retain the bolt in the retracted position;
• wherein movement of the follower from the first rotational position to the second rotational position causes the cam to move the bolt into the retracted position.