DE1018335B - Security lock, especially combination lock - Google Patents

Description

GERMAN

The subject of the main patent application is a security lock designed in particular as a combination lock with several locking disks seated against one another on the same axis, which can be rotated on their circumference each wear a groove, which at 5 setting of the locking disks according to the. Opening secret all consistently occupy the same radial position, in which then, in order to be able to operate the lock bolt, a drop lever can intervene with a touch bar.

According to the invention of this main patent application means are provided which make it achievable Release lever when closing the lock bolt as early as possible out of the groove of the locking washers to be lifted out, with the purpose that the locking discs are already when the lock bolt is closed can be adjusted again before the lock bolt has come into its closed position. With this it is achieved that the lock is immediately locked again even if its bolt is not intentionally or by mistake is fully advanced.

According to one embodiment of the main patent application is the safety stop for the drop lever, which prevents that the closed lock bolt from the front somehow to the unauthorized! Open the * lock pushed back can be attached to the lock housing so that it goes up when lifting the drop lever can dodge. This happens against a spring pushing it back, which is relatively strong must be so that the said safety stop can do its job.

This measure can still be improved in order to make the operation of the lock superfluous the said spring, which is released every time the The lock has to be squeezed together to make it easier and even more perfect, not more dependent on the correct operation of a compressible spring lock bolt securing to ensure against his · pushing back.

According to the present additional invention, this is achieved by that the upwardly evasive arranged safety stop for the lock bolt is designed as a lever that moves out of its locking position in the direction of the closing movement of the Can swivel up the lock bolt about an axis and in the opposite direction on the lock housing a fixed Stop finds. This eliminates the mentioned return spring for the safety stop, and he receives in its locking division at the same time, a reliably rigid stop on the housing of the Lock.

A particularly useful and advantageous embodiment results for this stop, safety lock,
especially combination lock

Addition to patent application K 24343 III / 68 a
(Interpretation document 1 014 875)

Applicant:

Theodor Kromer

Special factory for security locks,

Limited partnership,
Freiburg (Breisgau), Lehener Str.40a

Otto Sellin, Freiburg (Breisgau),
has been named as the inventor

if it is designed as a pivot lever one in the direction the opening movement of the lock bolt preferably also has beveled projection, which in the closed position has a wall cutout of the lock housing, engages under and with its slope matching a counter slope within this case comes to concern.

The invention is explained in more detail with reference to drawings and in an exemplary embodiment described. It shows

Fig. 1 a number lock designed according to the invention in a view from behind with removed rear cover plate, in the open position with the lock bolt retracted,

Fig ¹ . 2 the lock, seen from the side, in a partial view of its housing with the structure in which the safety stop corresponding to the invention is housed;

Fig. 3 is again the view of the lock from behind, in its position during the Closing the lock bolt with the latch lever already in the raised position and

Fig. 4 is the same view of the lock, but in its closed position. Bars.

These figures are in accordance with the main patent application 1 the drop lever, 2 the gripping strip carried by it, 3 the grooves in the locking discs, 4 and 5 of the lock bolt. On the Housing 9 of the lock is a small box 20. In this box is as a security

7OJ 757/54

stop of the pivot lever 21 housed. With its own weight it takes the one shown in Fig. 1 Blocking layer. It can still be held in place by a small steel spring 22.

Fig. 4 illustrates how the drop lever 1 in the closed position of the bolt 5 with his inclined front face 12 against the safety stop 21 sets. In this situation it is this Safety stop excluded, the bolt 5 must be pushed back because of the safety stop showing pivot lever 21 with its inclined rear surface 23 reaching behind the cover wall 24 of the lock housing rests and therefore makes evasion in the direction of the opening movement of the lock bolt 5 impossible.

Fig '. 1 represents the lock position in which the Drop lever 1 with its gripping strip 2 in, which are set according to the opening secret accordingly Grooves 3 of the locking disks 4 collapse and the lock bolt by means of the driving cam 7 in could withdraw the open lock position.

Fig. 3 shows how when closing the lock bolt 5, the drop lever 1 by the lifting cam 8 upwards, is pressed while pivoting the safety stop lever 21 upwards pushes away so that the lever 1 emerge from the grooves 3 early when the lock bolt is closed can. The engagement lever 1 can thus · when closing, the lock bolt opposite the grooves 3 be brought forward. This means that when the bolt is closed, the setting secret of the Lock washers 4 is already smeared again. In order to be able to open the lock again, it is therefore necessary beforehand the re-setting of the locking washers.

Claims (2)

Patent claims 1. Safety lock with several seated on the same axis against each other rotatable Locking disks, which each have a groove on their circumference, which when the locking disks are set according to the opening secret, they all have the same radial position take, in which then a lock bolt actuating, at the other end articulated with him connected drop lever can intervene with a feeler bar, according to patent application K 24343 III / 68 a, characterized in that the upwardly evasive arranged safety stop (3) for the lock bolt is designed as a lever is that moves out of its blocking position in the direction of the closing movement of the lock bolt Can pivot up about an axis and in the opposite direction on the lock housing a fixed Stop finds. 2. Safety lock according to claim 1, characterized in that the safety stop designed as a pivot lever has a pointing in the direction of the opening movement of the lock bolt ¹ , preferably still beveled projection which engages under a wall section of the lock housing in the closed position and with its slope on a counter slope within this Housing comes with the issue. 1 sheet of drawings © 709 757 ^ 54 10.5?