| 摘要 |
PURPOSE: A structure for improving an open angle of a lock bundle of a door lock apparatus is provided, which opens a door only by rotating a door handle by a small rotation angle about 35 degree. CONSTITUTION: Each operation wing(72) of an inner opening operation part(7a) and an outer opening operation part(7b) has a neck part(721) projected from one side of a circular body(71), and both sides of the neck part are formed as a sloped plane becoming wider gradually toward the outside from the circular body. And a hooking projection part(723) hooked to a hooking piece(22) formed in the operation part is formed by being projected toward the outside from an end part of the both sloped planes.
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