Patent ID: 8651536

Claim:
A door lock device for holding a door in a fully-closed state, said door being capable of being opened and closed relative to a vehicle body, said door locking apparatus comprising: a base plate and a striker which are installed to one and the other of said door and said vehicle body; a hook which is supported by said base plate to be rotatable between a striker holding position for holding said striker and a striker releasing position for releasing said striker, said hook being biased toward said striker releasing position; a latch which is supported by said base plate to be rotatable between a latching position at which said latch advances onto a rotating path of an engaging portion provided on said hook and an unlatching position at which said latch withdraws from said rotating path of said engaging portion of said hook; an opening lever which includes an arm portion that generally overlays said latch, is rotatably supported by said base plate thereon, and rotates between an opening position at which said arm portion is displaced toward said unlatching position of said latch and a closing position at which said arm portion is displaced toward said latching position of said latch; a latch controller which holds said latch in said latching position in each of a door-open state in which said hook is positioned in said striker releasing position and a door fully-closed state in which said hook is positioned in said striker holding position; prevents said hook from rotating toward said striker releasing position by engagement between said engaging portion of said hook and said latch in said door fully-closed state; and, when said latch controller performs a door opening operation from said door fully-closed state, makes said latch return to said latching position upon said hook reaching said striker releasing position after engagement between said latch and said hook has been released by causing said latch to rotate toward said unlatching position from said latching position in accordance with the rotation of said open lever from said closing position to said opening position; a latch detector for detecting said latching position of said latch and said unlatching position thereof; an open lever detector for detecting said opening position of said open lever and said closing position thereof; and a detector for detecting, by a combination of said latch detector and said open lever detector, said door-open state, a half-latching state in which said hook temporarily holds said striker, and said door fully-closed state.