HU209593B - Safety lock - Google Patents

Abstract

The present invention relates to a safety cylinder lock which allows a large number of permutations and thus reduces the chance of copying the key and unauthorized opening of the lock. The cylindrical lock according to the invention is characterized in that the locking pins in the branches of the quadrangular outer portion extending radially beyond the outer lock cylinder (2) of the sealing insert (1) are assigned to the grooves on the edge of the four-sided key and to the holes and recesses on the plate, while the one-sided key edge is at the edge. latching pins or holes and / or recesses on the plate are provided with latching pins located in the branch of the monolithic inner part. Abr .abrq EN 209 593 B Scope of the description: 6 pages (including 2 sheets)

Description

BACKGROUND OF THE INVENTION The present invention relates to a security cylinder lock having a locking insert, locking cylinders, locking tab, drive insert, locking pins with locking plugs and compression springs extending into the locking cylinders and keys.

The present invention allows for a large number of permutations and thus reduces the chance of the key being copied and of unlocking the lock.

In practice, many safety cylinder locks are known.

U.S. Patent No. 4,213,316 discloses a cylindrical lock and a flat key actuating it, the locking mechanism of which has a scalable, hard to copy key. This is due to the additional side ribs or cams on the key, which are located at predetermined lengths and heights and work in concert with the additional pins that move in the holes in the insert.

U.S. Patent No. 3,788,110 discloses a cylinder lock having a pin stud system.

The lock according to the invention has a housing, a rotating cylinder insert and radially three locking pins which are movable in parallel holes arranged in parallel to each other, these are sliding pins and springs. There are recesses on the shaft of the key that can be inserted into the keyhole.

Hungarian Patent No. 179,307 discloses a solution having a single cylinder lock and a key having grooves and ribs on its face.

The disadvantage of the design is that it is not sufficiently protected from the possibility of copying.

The cylinder lock described in German Patent No. 2,923,856 is three-pointed and its key is accordingly three-pointed. The key has recesses.

German Patent No. 3,032,203 also discloses a three-pronged key with a three-way cylinder lock and the associated countersinks.

The disadvantage of the above two solutions is that they do not allow sufficient permutation, thus increasing the risk of copying.

It is an object of the present invention to provide a solution in which only the outer part of the lock insert is multi-threaded, such as quadrilateral, and the inner part is single-edged, and its external key contains not only recesses but sharp edges. While it has bores and recesses on the edges of the key.

This makes it easy to convert an existing lock insert into a solution that allows for a very large number of permutations. Thus, the outer part of the lock is more protected against imitation and copying than the known solutions, while the inner lock insert is still a cheap simple construction, which is the same as the conventional lock insert.

The essence of the invention is therefore that the outer part has a four-sided, while the inner part has a single-sided lock insert and has a four-sided and conventional single-sided key which is designed so that the copying is better protected against the breakage.

The cylinder lock according to the invention is characterized in that the locking pins in the branches of the quadrilateral outer part extending radially over the outer lock cylinder of the lock insert are associated with recesses and recesses and recesses locking pins located in the branch of a single-ended inner part are ordered. The axes of the holes and recesses on the key blade may be in the same plane, may be parallel to each other, but they are preferably disposed disjointly.

Detailed Description of the Invention The present invention will be described in more detail by way of example in the accompanying drawings.

Fig. 1 is a front view of the lock insert with the locking cylinders, Figs. 2 and 3 are a side view of the lock insert and Fig. 4 is a sectional view of Fig. 1.

Figure 5 is a front view of a four-pronged key for the outside of the lock insert of Figure 1.

Figure 6 is a side view of the four-pointed key and Figure 7 is a sectional view.

Figure 8 is a front view of a single key for the inner part of the lock insert of Figure 1, and Figure 9 is a side view of the key.

The outer locking cylinder 2 of the locking insert 1 is located in the outer part of the locking insert 1 and the inner locking cylinder 3 is in the one-piece inner part of the locking insert.

Between the outer and the inner part is located the drive insert 5 and the slider 4.

The four-legged outer portion and the single-legged inner portion are secured by the Seger rings 6 and 7.

The locking insert 1 is secured with a screw located in the mounting hole 17.

Fig. 2 is a side view of the downwardly internal portion of the locking insert 1; Fig. 2 shows the four-pointed outer part of the lock insert la, lb, le, ld and the inner lock cylinder 3 and the slide carrier 4.

Figure 3 is a side elevational view of the four-piece outer portion of the lock insert la, lb, le, ld.

Fig. 4 shows the locking pins 10 and 11 of the outer and inner locking cylinders 2, 3 of the lock insert 1 and the compression springs 12 which are supported on the locking plugs 13. The compression springs 12 hold the locking pins 10, 11 in the correct position.

Fig. 5 is a front view of a key 8 which fits into the outer part of the lock insert 1 having an outer lock cylinder 2. The key 8 is four-pointed and has recesses 14 at its edges, bores 15 and recesses 16 on its face.

Figure 6 is a side view of the key 8, and Figure 7A-A shows the holes 15 and the recesses 16 on the face of the key 8.

The holes 15 and the recesses 16 may be parallel to one another, but are preferably disjointed relative to one another.

HU 209 593 B

Fig. 8 shows a key 9 for the single-piece inner part of the lock insert 1 with holes 15 and recesses 16 on its face.

Figure 9 is a side view of the single-ended key 9;

The cylinder lock of Figure 1 operates as follows:

When the four-pointed key 8 is inserted into the outer lock cylinder 2 of the lock insert 1, the contact surface of the locking pin 10, 11 is located on the peripheral surface of the outer lock cylinder 2.

The locking pins 10, 11, when actuated by the socket wrench, make it possible to rotate the core cylinder of the outer lock cylinder 2.

The compression springs 12, which are supported by the closure plugs 13, ensure that the locking pins 10, 11 are kept as low as possible.

The inner lock cylinder 3 of the locking insert 1 is single-threaded, and accordingly the key 9 which fits into the cylinder is single-threaded.

The outer and inner locking cylinders 2,3 are held in position by the Seger rings 6,7.

By rotating the outer or inner locking cylinder 2, the slider 4 is rotated through the drive insert 5.

A stop 18 is provided on the neck portion of the key 8, 9, which ensures that the key always reaches the proper depth in the outer or inner lock cylinder 2.

A great advantage of the present invention is that it provides greater security than the known solutions due to the increased permutation capabilities, and that no further engraving of the inner door surface is required when replacing conventional cylinder locks.

Claims (2)

PATIENT INDIVIDUAL POINTS 1. A safety cylinder lock having a lock insert, cylinders, locking tongues, locking flaps, locking pins fitted with locking plugs and compression springs entering the lock cylinders, and keys, characterized in that the cylinders (1) of the outer cylinders (2) of the lock (2) have a radially protruding four-gang section (la, The latching pins (10, 11) located at the edge of the four-sided key (8) and the holes (15) on the plate (15) and the recesses (16) are disposed on the latches (10, 11) of the four-sided key (9), locking pins (14) on the flange (14) on the edge or on the holes (15) and / or on the recesses (16) on the flange are provided with locking pins located in the branch (down) of the single-piece inner part. Cylinder lock according to claim 1, characterized in that its keys (8, 9) are provided with a cylindrical stop (18). EN 209 593 Β Int Cl ⁵ : E 05 B 27/06 ΰ e -o σ L -He EN 209 593 B Int. Cl ⁵ : E 05 B 27/06 X Crash