Doubledeadlock: A true combination door latch and deadbolt lock with optional automatic deadbolt locking when a door is latched

摘要

A combined automatic latch and deadbolt assembly includes a latch; a deadbolt configured to selectively assume a first and a second configuration, the deadbolt defining a deadbolt feature; a first mechanical coupling coupled to the latch, and a second mechanical coupling that coupled the latch to the deadbolt. The second mechanical coupling may be configured such that movement of the latch causes the first mechanical coupling to move and engage the second mechanical coupling with the deadbolt feature to selectively cause a) the deadbolt to assume the first configuration, and b) cause the deadbolt to assume the second configuration.