| 摘要 |
The present invention relates to a lever type door lock, which can provide beautiful appearances, ensure firm locking force, and can increase design variability of a lever by being formed of combined advantages between a Mortise type and a Tubular type. The lever type door lock comprises: a latch housing which is maintained by a latch plate accommodated inside a door and fixated to the thickness side of the door, and has a latch bolt; an in-plate and an out-plate which fixate a lever to the inner surface and the outer surface of the door in order to rotate; a latch shaft which connects the lever and the latch housing so that the latch bolts can access the latch housing by the rotation of the lever; and a locking unit which restricts the rotation of the lever in the lower or upper part of the in-plate and the out-plate in order to maintain the inserting and locking state of the latch bolt into a latch bolt groove on a door frame. |
