JPH0479164U

JPH0479164U -

Info

Publication number: JPH0479164U
Application number: JP12189190U
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図は正規のキーによる解錠状態の断面図、第４
図は第３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５図は不正解錠の例を示
す断面図、第６図はこの考案の他の実施例を示す
断面図、第７図はこの考案の更に別の実施例であ
る。１０……ケース、１０ａ……空洞部、１０ｂ…
…内壁、１５……第二の係止溝、１６……第三の
係止溝、１７，１８……第一の係止溝、２０……
キーシリンダ、２２……キー孔、２５……タンブ
ラ、２６……開口部、３０……キー、４０……係
止部材、４２……開口部、４３ａ……第一の外側
突起部、４３ｂ……第二の外側突起部、４４……
内側突起部、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 of the locked state, Fig. 3 is a sectional view of the unlocked state with a regular key, and Fig. 4 is a sectional view of the cylinder lock in the unlocked state.
The figure is a sectional view showing a state in which the key cylinder is rotated from the unlocked state shown in Fig. 3, Fig. 5 is a sectional view showing an example of unauthorized unlocking, and Fig. 6 is a sectional view showing another embodiment of this invention. , FIG. 7 shows yet another embodiment of this invention. 10...Case, 10a...Cavity part, 10b...
...Inner wall, 15...Second locking groove, 16...Third locking groove, 17, 18...First locking groove, 20...
Key cylinder, 22... Key hole, 25... Tumbler, 26... Opening, 30... Key, 40... Locking member, 42... Opening, 43a... First outer protrusion, 43b... ...Second outer protrusion, 44...
Inner 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 and a key cylinder having a key hole, which are arranged in the first locking groove and can be engaged with the first locking groove, forming a second locking groove in the case and a third locking groove at a position opposite to the second locking groove;
A locking member movable in a direction substantially perpendicular to the direction of movement of the tumbler is attached to the key cylinder, and the locking member has an opening into which the key is inserted and a spring provided on the key cylinder that protrudes outside the key cylinder. a first outer protrusion that engages with the second locking groove; and a second outer protrusion that protrudes to the outside of the key cylinder and engages with the third locking groove due to excessive movement due to the elasticity of the spring. A protrusion and a contact part that is provided in the opening of the locking member and detects the shape of the side surface of the key are provided, and a regular key inserted into the key hole of the key cylinder causes the contact part of the locking member to be connected to the key. A cylinder lock characterized in that the first outer protrusion of the locking member and the second locking groove are spaced apart by contacting the side surface thereof, and the tumbler is spaced apart from the first locking groove. (2) The cylinder lock according to claim (1), wherein the contact portion projects inside the opening and engages in a groove formed in the key. (3) The cylinder lock according to claim (1), wherein the contact portion has one or more inner protrusions that protrude inward at the opening of the locking member.