DE361110C - Combination lock with rotatable, mutually driving locking discs - Google Patents

Description

The invention relates to the known combination lock with rotatable Discs. As a rule, there are three superimposed or one behind the other in such locks Discs in use, driven by a shaft with a number or number disc are to be rotated from the outside by certain angles in order to bring them into a position in of them other parts, for example one

ίο Lock bolt, release to move while They lock the movement of these parts as soon as they all or one of them hold another position. Each adjusting disc is equipped with a gear disc, which is usually stored in a cavity of its associated disc and through resilient pins is coupled to the disc. A mutual adjustment between the gear wheel disc and lock washer can be made after the resilient pins are retracted are. By mutual adjustment of the various toothed disks with respect to their associated adjusting or Locking disks can then be used in a known manner to create very different security combinations to adjust. The rotation of the locking disks to adjust them to release the lock is done by a joint Shaft, usually equipped with a fixed and a resilient cross pin and is arranged to be longitudinally displaceable in such a way that, depending on its setting, it is either one or several at the same time Lock washers can twist.

In the known locks of this type, all three adjusting discs were with so-called blind cuts on the circumference, which according to intricate tables - to achieve the required permutation - were milled. This made the construction of the castle particularly difficult and therefore correspondingly expensive, especially since the incisions are made with the greatest possible precision had to be.

According to the invention, a major simplification has been created, the Security against unlawful opening of the lock has been increased Has. The three adjusting discs each receive a recess, which, if they are in the corresponding mutual situation come, the parts to be secured by the lock or their movement to be hindered then for the movement release. One of the disks is also given indentations over its entire circumference, which are shaped or kept so flat that one acting against the circumference of the disc resilient locking pin holds the disc in its respective position, but the rotation the disc through the shaft to be driven from the outside. The mutual taking of the slices is, as is known, prevented by intermediate layers.

With the well-known locks it was a grievance that when setting the the last sign that the parts that have been blocked up to that point fall into the areas intended for triggering Notches in the individual discs by hearing or feeling (when rotating the shaft), which It was made easier for an unauthorized person to find the so-called castle secret. This maladministration is the present one Invention eliminated in that the resilient locking pin is so arranged opposite the recessed disc is that he alternates with the above movably mounted locking lever in the tooth-like Indentations of the disc sink, d. i.e. when the locking lever is in a recess occurs, the locking pin is lifted on the tip between two elevations. Through this becomes the increase and decrease of the resistances encountered when rotating the disk balanced, and the fall of the locking lever in the release permitting The position can no longer be heard or felt.

An exemplary embodiment of the subject matter of the invention is shown in the drawing.

Fig. Ι shows a view of the open lock;

Fig. 2 shows a similar view after removing the first disc and a locking part;

Fig. 3 shows a section along line xx in Fig. I.

In the lock case ι from the outside by means of a rotary knob in the known manner

ίο the shaft 2 to be rotated is supported. On them are three locking disks 3, 4, 5 (Fig. 3) pushed on. Each locking disk is on the edge with a flat bulge 6 is provided. Above the panes there are two in the lock case locking parts 7 and 8 (locking pieces) to be blocked by the panes and temporarily released, which in turn have projections 9, the shape of which corresponds to the recesses 6 in the Slices correspond. In the case shown in Fig. 1

ao drawn locking position, the projections 9 of the parts 7 and 8 are so on the circumference of the disks 3 to 5 that they the movement of a pin 10 in the direction of the arrow impede. This pin can, for example, sit on any bolt lock, the opening of which should only be possible if the panes of the combination lock have previously been brought into the position in the protrusions of the locking levers (parts 7 and 8) into the correct disc indentations 6 come up. Fig. 3 shows that the two disks 3 and 4 together act on the lever 7, while the lever 8 only influences the disk 5 will. Within each adjusting disk 3 to 5 rests a toothed disk 11 (Fig. 1 and 2), the can be adjusted compared to the discs 3 to 5.

While the outer shape of the disk 5 can be seen from Fig. 1, the corresponding one can be seen Shape of the middle disk 4 from Fig. 2, in which the disk 5 and the locking lever 8 are removed. There is a larger number on the circumference of the disc 4 of shallow recesses 12 are provided, one of which as an adjustment cutout 6 for the Projection 9 of the locking lever 7 is formed. A laterally in a hole in the Lock housing resting resilient pin 13 is arranged so that it is on the tip of the tooth stands when the locking lever 7 is located in a disk recess. Because this locking pin is constantly pressed against the circumference of the disc by a spring, it exercises un-

Ί> 5 have the same effect on the disc, like the above by its own weight the disc burdening locking lever 7. When Turning the disc, these parts now alternately fall into the disc indentations, whereby the recognition of the open position is prevented.

In the example, 25 wells 12 (including the large well 6) are on the circumference of the disk 4 provided corresponding to the 25 letters of the alphabet on the adjusting disk of the knob for the shaft 2. The toothed disks 11 have in the Example 50 teeth, so that each individual disk can be adjusted fifty times is. The letter disk is then given the capital and small letters alternately of the alphabet. It does not matter whether the Washer 4 of the locking pin 13 on the bottom of a recess 12 or on the raised position comes to stand between two wells, since it is only with the action of the locking lever 7 together can exert the desired influence on the adjusting disk. Either the locking pin 13 is on the ground a recess and the locking lever 7 in an elevated position between two recesses or the other way around.

In the example shown rests, assuming the vertical position of the Lock according to the figures, the locking lever 7 by its own weight the disks 3 and 4, the effect of gravity being supported by a bolt 17 is increased, which rests in an Ouerbbohrung the lever 7 and by spring 18 against the upper wall of the lock housing 1 is printed. The bolt 17 exerts a torque the lever 7, since this rests with the left end on the detent 19 of the lock housing. The second lever 8 is in the example only by its own weight on the Disk 5 held; it is rotatably mounted about the pin 20.

Claims (1)

Patent claim: Combination lock with rotating, mutually driving locking discs, characterized in that one of the locking disks (3, 4, 5) has recesses (12) is equipped against which a spring pin (13) and one through the whole Disc system to be locked or released lever (7) act, the parts (7 and 13) so against each other are offset that they alternate with the rotation of the discs in the wells enter. 1 sheet of drawings.