Bolting Mechanism

a bolt movable between a thrown position and a retracted position;

• a drive mechanism configured for retracting the bolt, the drive mechanism configured to be driven by a first handle from a first side;
• a mechanical code lock having a key pad for receiving an entry code;
• and
• a first key actuated controller configured to enable and disable the mechanical code lock such that when the mechanical code lock is enabled the mechanical code lock, on entry of a matching code to the key pad, enables actuation of the drive mechanism by the first handle;
• a deadbolt mechanism comprising a deadbolt arranged to prevent the bolt from being driven by the first handle when the deadbolt is in the locked state, the deadbolt mechanism comprising:
• an electrical actuator configured to release the deadbolt from the locked state when a release signal is received from an electrical access control unit;
• and
• a second key actuated controller configured to release the deadbolt from the locked state on actuation by a matching key, wherein the drive mechanism is configured such that, when enabled by the mechanical code lock, and the deadbolt is released by the deadbolt mechanism, the first handle is released for driving the bolt to the retracted position.

A bolting mechanism comprising:

• a bolt movable between a thrown position and a retracted position;
• a drive mechanism configured for retracting the bolt, the drive mechanism configured to be driven by a first handle from a first side;
• a mechanical lock configured for releasing and preventing retraction of the bolt;
• an electrically activated lock configured for releasing and preventing retraction of the bolt;
• and
• one or more mechanical controllers configured to select whether the mechanical lock is configured for release and whether the electrically activated lock is configured for release, the one or more mechanical controllers operable to select on provision of a secure key.

A code lock for controlling access through a door or leaf, the code lock configured to be inactivated on action of a key cylinder, the code lock comprising:

• a key pad for receiving an entry code;
• a handle for retracting a bolt or latch of the door or leaf, the handle configured to be operable upon entry of the correct entry code to the key pad;
• the key cylinder;
• an activation plate configured to slide between an activated position in which the key pad is active for receiving input of an entry code and operably releasing the handle, and an inactive position in which the key pad is decoupled from control of the handle;
• and
• a cam coupled to the key cylinder, the cam configured such that on receipt and rotation of a matching key by the key cylinder the cam drives the activation plate between the activated position and the inactive position.

A lock mechanism, comprising:

• a bolt movable between a thrown position and a retracted position;
• and
• a deadbolt mechanism comprising:
• a sliding deadbolt configured to slide between a locked position in which the sliding deadbolt inhibits retraction of the bolt and one or more unlocked positions;
• an electrical actuator configured to retract the sliding deadbolt to one of the one or more unlocked positions on application or removal of power to the electrical actuator;
• a release driver arranged such that, when driven by a key cylinder, the release driver retracts the sliding deadbolt to one of the one or more unlocked positions;
• and
• a latch configured to hold the sliding deadbolt in one of the one or more unlocked positions until the release driver is further driven by the key cylinder to release the sliding deadbolt.