| 摘要 |
For use in a lockset there is provided a cylindrical housing having a projecting wing and having a bore concentric with an axis. An axially extending rib projects into the bore. A first tumbler mechanism is disposed largely in the wing portion of the housing and includes first tumbler chambers extending through the rib to the bore. A plug is rotatable in the housing about the axis. The plug includes a plug shell and a plug core normally interfitted and axially separable. The plug shell has an axially extending recess therein open at one end. The plug has an adjustable cap adjacent one end and a disc on the other end to limit axial movement. The plug core has a second tumbler mechanism cooperating with the first tumbler mechanism and opening into a keyway therein. The plug core is receivable in the plug shell recess and has a lug on the end opposite the disc interengaging with an inturned flange on the housing to limit withdrawal movement of the plug core in all except one rotary position. In that position, a window in the inturned flange passes the lug and permits retraction of the plug core.
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