JPH0298167U

JPH0298167U -

Info

Publication number: JPH0298167U
Application number: JP688889U
Authority: JP
Priority date: 1989-01-24
Filing date: 1989-01-24
Publication date: 1990-08-06

Description

[Brief explanation of the drawing]

図面は本考案の実施態様を例示するもので、第
１図は本案シリンダー錠の縦断側面図、第２図は
第１図Ａ―Ａ線における拡大断面図、第３図は同
要部拡大断面図、第４図は内筒の回転途中におけ
る同要部拡大断面図、第５図は第１図Ｂ―Ｂ線に
おける要部拡大断面図、第６図は他の実施例を表
わす第３図と同じ状態での要部拡大断面図である
。１……シリンダー錠、２……内筒、２_１……鍵
挿入孔、２_２……ピンタンブラー、２_３……ピン
タンブラー孔、３……外筒、３_１……ピンタンブ
ラー、４……制御ピンタンブラー、５……テーパ
ー溝、６……副制御ピンタンブラー、７……制御
ピンタンブラー、７_１……スプリング、８……キ
ヤツプ。 The drawings illustrate an embodiment of the present invention, and FIG. 1 is a vertical side view of the cylinder lock of the present invention, FIG. 2 is an enlarged sectional view taken along the line A-A in FIG. 1, and FIG. 3 is an enlarged sectional view of the same main part. Figure 4 is an enlarged sectional view of the same main part during rotation of the inner cylinder, Fig. 5 is an enlarged sectional view of the main part taken along the line BB in Fig. 1, and Fig. 6 is Fig. 3 showing another embodiment. It is an enlarged cross-sectional view of the main part in the same state. 1... Cylinder lock, 2... Inner cylinder, 2 ₁ ... Key insertion hole, 2 ₂ ... Pin tumbler, 2 ₃ ... Pin tumbler hole, 3... Outer cylinder, 3 ₁ ... Pin tumbler, 4... ... Control pin tumbler, 5 ... Tapered groove, 6 ... Sub-control pin tumbler, 7 ... Control pin tumbler, 7 ₁ ... Spring, 8 ... Cap.

Claims

[Scope of utility model registration request]

In a cylinder lock, the boundary line between the tumbler group in the inner cylinder and the tumbler group in the outer cylinder is aligned with the shear line of the inner cylinder and the outer cylinder by inserting the duplicate key into the key insertion hole of the inner cylinder. A tumbler hole communicating from the outer circumferential surface to the key insertion hole is formed in the inner cylinder at a portion corresponding to the formed recess, and the head is urged to protrude outward at all times in the tumbler hole, and when retracting A control tumbler, the rear end of which fits into the recess of the duplicate key, is removably inserted into the control tumbler, and a tapered groove in the inner peripheral wall of the outer cylinder is formed in the longitudinal direction, into which the head of the control tumbler fits in at the key insertion position. When the duplicate key is inserted into the tumbler hole of the inner cylinder, which is formed at a location that does not correspond to the recess of the duplicate key, the head end surface is flush with the outer peripheral surface of the inner cylinder. A sub-control tumbler that moves to a position is fitted and inserted, and a portion of the tapered groove corresponding to the tumbler hole into which the sub-control tumbler is fitted has an outer cylinder side that is urged to fit into the tumbler hole. A cylinder lock with a control tumbler.