| 摘要 |
PROBLEM TO BE SOLVED: To provide a lock for a door, which prevents a cylinder lock from being attacked by a tool such as a cutting means, particularly, prevents the cylinder lock from being pulled out. SOLUTION: This lock for the door comprises a cylindrical housing which is fixed to the door, and the cylinder lock which is fixedly and internally mounted in the housing; a plurality of continuous fitting parts are formed in the housing; one of the fitting parts comprises a first fitting part which is formed at the back end of the housing in a stepwise shape and into which a plate for preventing the extraction of the cylinder lock is to be fitted, and a second fitting part which communicates with the first fitting part and into which an outer cylinder of the cylinder lock is to be fitted; and the plate for preventing the extraction is fixed to the cylinder lock via a fixing means, and locked to a stepwise vertical inner peripheral surface. COPYRIGHT: (C)2006,JPO&NCIPI
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