| 摘要 |
PURPOSE: A key is provided to be used for multiple locking devices by selectively varying the shape of a concavo-convex part of the key. CONSTITUTION: A key comprises a hollow key body(110), a central shaft, a dial assembly(130), multiple cams, multiple protrusion pins(150), and a fixed cap. Multiple through holes are formed in the hollow key body in a longitudinal direction. The central shaft is installed inside the key body. The dial assembly is installed in the central shaft and has multiple dials. The cams are coupled to the dials. The protrusion pins are in contact with the cams. The fixed cap is coupled to the end of the central shaft.
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