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 at least one shoulder sloped in a plane parallel to the first plane, such that the bolt is moveable into the retracted position in response to a force applied to the at least one shoulder;
• and
• wherein the lock mechanism is moveable into a first configuration in which it engages the bolt to move the bolt into the retracted position;
• and into a second configuration in which it disengages from the bolt such that the bolt is resiliently biased into the extended position.