Patent ID: 7621571
Filing Date: 2009-11-24
Classification: E05B,Y10S,Y10T

Abstract:
1. A door lock system comprising: a latch mechanism housing, a latch mechanism that is housed within said latch mechanism housing and maintains a closed state of a door to a main body of a vehicle and enables the door to be opened with respect to the main body in response to an operation on a handle, a lock mechanism housing, said lock mechanism housing being of a size and shape that provides integral assembly with the latch mechanism housing, a lock mechanism that is housed within said lock mechanism housing and that switches to an unlocked state when a door opening operation is performed on the handle and switches to a locked state when a door closing operation is performed on the handle, a positioning unit comprising: a restricting unit that restricts relative movements of the latch mechanism housing and the lock mechanism housing when integrally assembled, in directions other than the extending direction of the shaft when the shaft is inserted and fitted into the concave portion, wherein said restricting unit comprises: a latch mechanism attaching portion disposed on a door rear side of the lock mechanism housing and extending from an indoor side to an outdoor side of the door lock system; and a casing formed in said latch mechanism attaching portion, defined by wall portions extending from said lock mechanism housing in said shaft extending direction, wherein said shaft extending direction is along a direction extending between a door front side and the door rear side of the door lock system, wherein said wall portions include a circumferential wall continuously formed around an upper side, the outdoor side, and a portion of the lower side of the casing, so that an opening is formed at the indoor side of the casing, and wherein said wall portions further include a seizing piece disposed at an opening edge of the opening, extending from the opening edge in said shaft extending direction so as to be sandwiched between a base plate and a cover plate of said latch mechanism housing, and wherein an attaching hole is formed in each of the seizing piece, the base plate and the cover plate, and the attaching holes are axially aligned whereby an attaching screw is inserted in the aligned attaching holes so as to attach the latch mechanism housing to the lock mechanism housing.