CYLINDER LOCK AND DOOR

To provide a cylinder lock capable of preventing unauthorized unlocking caused by inserting a rotary tool into a keyhole.SOLUTION: A cylinder lock in which a rotating member that can rotate around an axis of a keyhole is arranged at an inner depth part of the keyhole into which an unlocking key is inserted. A rotating tool inserted into the keyhole contacts the rotating member, and the rotating tool and the rotating member rotate in synchronization. In other words, the rotating tool, undergoing an idle rotation, cannot easily destroy the rotating member. This prevents destruction of the inner depth part of the keyhole. It is preferred that the plurality of rotating members are arranged.SELECTED DRAWING: Figure 2 【課題】鍵穴に回転工具を差し込むことによる不正解錠を防ぐことが可能なシリンダ錠を提供すること。【解決手段】解錠鍵が挿入される鍵穴の内奥部に、鍵穴の軸を中心に回転可能な回転部材が配置される、シリンダ錠。鍵穴に差し込まれた回転工具が回転部材に当接し、回転工具と回転部材とが同調回転する。即ち、回転工具が空転するため、回転工具は回転部材を容易に破壊できない。これによって、鍵穴の内奥部の破壊を防ぐことができる。回転部材は、複数配置されることが好ましい。【選択図】図２