DE1250761B - Scanning protection for a door lock with tumbler plates. - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

Int. Cl .:

E 05 b

GERMAN WTVWS PATENT OFFICE

EDITORIAL

German class: 68 a - 75

Number: 1250 761

File number: D 46727 I c / 68 a

1250 761 Meidelag:

March 8, 1965

Opened on: September 21, 1967

The invention relates to a scanning fuse for a door lock with tumbler plates.

A scanning safety device is known in which pivotable tumbler plates by means of a separate Swivel tumbler can be blocked by a spring-loaded angle lever. Such a one However, scanning fuse is not only tangled up in theirs, given their additional components Construction and therefore expensive to manufacture, but in view of the fact that the same between the Forend and the front ends of the tumbler plates is arranged on the locking bolt, this also receives Naturally closed a larger width and therefore an increase in price.

Furthermore, a scanning fuse is known in which it has been proposed that both the faceplate be turned away Surface of the tour stop pin as well as the flank of the window cutout facing the faceplate To provide guard locking plate with fine teeth. With such a design of the lock the same can be closed unhindered with the appropriate key, because the interlocking glides past. However, if the bolt is put under pressure, for example according to the known one Hobbian method, the teeth interlock and prevent the guard locking from lifting.

A fuse designed in this way not only increases the production costs of the lock, but also also does not guarantee permanent, flawless operation.

An increase in the price of the lock occurs initially because a separate, Teeth-provided expensive style part is used. Furthermore, the tools for the with The tumbler plates with fine teeth are subject to premature wear. Besides, it is inevitable that by the constant sliding past each other of the fine teeth when closing the lock the tooth tips, especially in the tumbler plates, which are usually made of brass, naturally be rounded off, causing the toothing to slide off the inclined tooth flanks a stronger pressure against the tumbler plates is undoubtedly promoted.

The aim is to achieve the object of creating a scanning safeguard which meets the deficiencies mentioned eliminated and without sensitive training of the lock parts and without additional components and Operations a permanent and reliable scanning protection against unauthorized opening of the tumbler lock guaranteed by means of auxiliary tools.

Scanning protection for a door lock with
Tumbler plates

Applicant:

Friedrich Dörrenhaus,

Heiligenhaus (District Düsseldorf), Velberter Str. 107

Named as inventor:
Friedrich Dörrenhaus,

Willi Pingsmann, Heiligenhaus (District Düsseldorf)

This object is achieved in that one or more spring-loaded

ao ter sliding tumblers a spring-loaded swivel tumbler designed as a two-armed lever, which acts as a scanning lock, is arranged, at the short end of the lever arm an angled locking lug is provided, which when the swivel tumbler is swiveled by means of an auxiliary key into one at the adjacent end of the one in the rest position Sliding tumbler engages provided shoulder heel.

The mode of operation of this scanning protection is that when using the associated Key this first attacks the sliding tumblers and moves them, with their shoulder heels on the locking lug of the swivel tumbler can slide past.

When an auxiliary key is used, for example according to the Hobbian method, it intervenes Rigid beard bridge first of all the swivel tumbler, with the one provided on the swivel tumbler The locking nose inevitably swivels against the shoulder heels provided on the sliding tumblers, since the sliding tumblers are still in the rest position and the middle ones are movable Beard bridges must be attacked and moved. A shift of the same is not possible, since the locking lug of the pivoted swivel tumbler lying against the sliding tumblers does this prevented.

In the drawing, an embodiment is shown, namely shows
F i g. 1 the partial interior view of a two-speed mortise lock with the bolt locked and fixed by all tumblers,

709 648/94

Claims (1)

F i g. 2 the same view as FIG. 1, in which the swivel tumbler by means of an auxiliary key is raised and the sliding tumbler locks against displacement, F i g. 3 shows the cross section at the level of the tour retaining pin according to FIG. 1, Fig. 4 the ^ horizontal view against the Schwenkzuhaltun «, Fig. 5 ~ the top view of the swivel tumbler and ίο F i g. 6 the top view of a sliding guard. In the lock on which the invention is based, the bolt 1 is guided on the one hand in the forend 2 and on the other hand on the mandrel 4 fastened in the lock plate 3. On the mandrels 5 and 6 of the latch 1 are superposed in any desired number (four in the example), provided with guide slots 7 Schiebezuhaltungen 8 displaceably guided perpendicular to the direction of movement, soft by the springs 9 in a known manner be charged. About the sliding tumblers is a pivotable about the mandrel 5, designed as a two-armed lever pivot tumbler 10 which is loaded by the spring 11 in a known manner. All tumblers are provided with window cutouts for the purpose of keeping the tour, in which the tour retaining pin 12 , which is designed to be square and fastened in the bolt, engages. At the short arm end of the swivel tumbler 10 an angled locking lug 13 is provided, which is arranged in such a way that the shoulder heels 14 provided on the adjacent front ends of the sliding tumblers slide past the locking lug 13 with the associated key 15 during the normal closing process, as in F i g . 1 indicated by dotted lines. This design of the tumblers causes the locking lug 13 of the tumblers to pivot against the shoulder 14 of the sliding tumbler 8 , which is still in the rest position , when the tumbler 10 is pivoted by means of the rigid beard of an auxiliary key 16. Scanning or shifting the sliding locking device by means of the central movable beard bars of the auxiliary key is hereby excluded, since the locking lug 13 blocks the shifting of the sliding locking device. Claim: Scanning safety device for a door lock with tumbler plates, characterized in that a spring-loaded swivel tumbler (10) designed as a two-armed lever , which acts as a scanning safety device, is arranged on the broad surface of one or more spring-loaded sliding tumblers (8) , at the short end of the lever arm an angled locking lug (13) is provided which, when the swivel tumbler (10) is pivoted, engages a shoulder shoulder (14) provided on the adjacent end of the sliding tumbler (8) in the rest position by means of an auxiliary key (16) . Considered publications:
German patent specifications No. 210 724, 860 155. 1 sheet of drawings 709 648/94 9. 67 © Bundesdruckerei Berlin