JPH0479165U

JPH0479165U -

Info

Publication number: JPH0479165U
Application number: JP12189290U
Authority: JP
Priority date: 1990-11-22
Filing date: 1990-11-22
Publication date: 1992-07-09

Description

[Brief explanation of drawings]

第１図はこの考案によるシリンダ錠の実施例を
示す分解斜視図、第２図は施錠状態の断面図、第
３図はキーの先端部をキーシリンダのキー孔内に
挿入する状態を示す断面図、第４図はタンブラの
開口内にキーが挿入された解錠状態の断面図、第
５図は第４図の解錠状態からキーシリンダを回転
した状態を示す断面図、第６図は不正解錠の例を
示す断面図である。１０……ケース、１０ａ……空洞部、１０ｂ…
…内壁、１５……第二の係止溝、１６，１７……
第一の係止溝、２０……キーシリンダ、２２……
キー孔、２５……タンブラ、２５ｂ……開口部、
２５ｃ……凹部、２６……開口部、３０……キー
、４０……係止部材、４１ａ，４１ｂ……係止部
、４２ａ……内側突起部、４２ｂ……外側突起部
、５１，５２……スプリング。 Fig. 1 is an exploded perspective view showing an embodiment of the cylinder lock according to this invention, Fig. 2 is a sectional view in the locked state, and Fig. 3 is a sectional view showing the state in which the tip of the key is inserted into the key hole of the key cylinder. Figure 4 is a sectional view of the tumbler in the unlocked state with the key inserted into the opening, Figure 5 is a sectional view showing the key cylinder rotated from the unlocked state of Figure 4, and Figure 6 is a sectional view of the tumbler in the unlocked state. FIG. 3 is a cross-sectional view showing an example of unauthorized unlocking. 10...Case, 10a...Cavity part, 10b...
...Inner wall, 15... Second locking groove, 16, 17...
First locking groove, 20...Key cylinder, 22...
Key hole, 25... tumbler, 25b... opening,
25c... recess, 26... opening, 30... key, 40... locking member, 41a, 41b... locking portion, 42a... inner protrusion, 42b... outer protrusion, 51, 52... …spring.

Claims

[Claims for Utility Model Registration] (1) A case having a cylindrical cavity and a first locking groove formed in the longitudinal direction on the inner wall forming the cavity, and a case that is rotatable within the cavity of the case. In a cylinder lock provided with a plurality of tumblers that can be engaged with the first locking groove and a key cylinder having a key hole, the cylinder lock is located at a position separated from the first locking groove at an angle of approximately 90°. A second locking groove is formed in the case, and a locking member movable in a direction substantially perpendicular to the direction of movement of the tumbler is attached to the key cylinder. an inner protrusion that protrudes into the keyhole of the tumbler, an outer protrusion that engages with the second locking groove in the event of an unauthorized unlocking operation, and a lock that can engage with a recess formed on the side of the tumbler. A member is provided, and the tumbler is separated from the first locking groove by a regular key inserted into the key hole of the key cylinder, and the outer protrusion of the locking member does not engage with the second locking groove of the case. 1. A cylinder lock characterized in that a locking portion of a locking member is separated from a recessed portion of a tumbler when the locking member is in a closed state. (2) The cylinder lock according to claim (1), wherein the locking member detects the shape of a side surface of the key. (3) When inserted into the regular key hole, the inner protrusion of the locking member engages with the groove formed in the length direction of the key, so that the locking part of the locking member is separated from the recess of the tumbler. Then, the tumbler engages with the notch of the key and separates from the first locking groove.
The cylinder lock described in (1).