CYLINDER LOCK AND DOOR

To provide a cylinder lock that allows diameter of an external cylinder to be decreased and has good assembly workability.SOLUTION: A cylinder lock has an external cylinder, an internal cylinder that rotatably engages with the external cylinder, and a cover material to cover the external cylinder. A pin hole in communication with a keyhole is formed on the external cylinder and the internal cylinder so as to allow a driver pin and a tumbler pin to be inserted therethrough. A plurality of cover materials cover the pin holes in a plurality of lines in an axial direction of the external cylinder. It is preferable that two cover materials be provided and constituted of spring steel material.SELECTED DRAWING: Figure 2 【課題】外筒の小径化が可能であり、かつ良好な組立作業性を有するシリンダ錠を提供すること。【解決手段】外筒と、外筒に回動可能に篏合する内筒と、外筒を被覆する蓋材と、を備え、外筒及び内筒には、鍵穴に連通しドライバーピン及びタンブラーピンが挿通可能なピン孔が形成され、蓋材は、外筒の軸方向における複数列のピン孔を被覆する複数の蓋材である、シリンダ錠。蓋材は、２つ備えられ、バネ鋼材により構成されることが好ましい。【選択図】図２