CZ171593A3 - Safety lock pin-tumbler - Google Patents

Abstract

The security lock insert consists of a cylindrical part and a tumbler block where the tumblers are one side in with the unlocking mechanism and its other side are in contact with the key lock code via the transmission key members disposed in the cylindrical portion of the insert.

Description

Technical field

BACKGROUND OF THE INVENTION The present invention relates to a security lock cylinder, in particular a door or a safe, provided with lock pins.

BACKGROUND OF THE INVENTION

To date, various designs of lock inserts are known, where a generally flat spanner with a toothing on one side acts on the tumbler to unlock the lock mechanism.

The locks are arranged in a block following the cylindrical part of the lock cylinder. The tumblers are actuated by pins whose stroke is directly derived from the shape of the toothing, i.e. the key lock code.

A disadvantage of these inserts is the relatively easy tampering by a person without the appropriate key. Because the inserts of this construction release the lock mechanism, respectively. unlock the lock by resetting the tumblers directly, just using a foil or other used tool only reset tumblers through accessible pins and the lock is unlocked.

[0002] The construction of lock inserts with pins in two parallel blocks is also known, these pins acting on a single row of tumblers. Further, it is known to design lock pads for a flat key, adapted for a particularly spatially shaped key, or a key with a locking code, not on its contour, but on the side surfaces.

These designs partially eliminate the disadvantages of the first and most widespread family of liners and make tampering more difficult. Their disadvantage is that they work on the same principle, ie. that after locking the tumblers by mechanical action on their pins or by spraying an aggressive substance into the insert, which tears the tumbler springs, the lock is released directly.

The object of the invention is to design a security lock cylinder in which mechanical manipulation of the tumblers is not possible, whilst maintaining dimensions and compatibility with today's most widespread conventional and security lock cylinders, including a freely accessible keyhole.

SUMMARY OF THE INVENTION

The aforementioned drawbacks are largely eliminated by the design of the security lock cylinder according to the invention, which is based on the fact that the tumblers are in contact with the key by means of transmission elements arranged in the cylindrical part of the lock cylinder.

The advantage of this arrangement is the complicated tampering of tumblers, where it is not possible to determine whether the lock has been unlocked by resetting. In this basic version of the cylinder, the rotatably mounted cylindrical member of the lock cylinder can be rotated even in the case of incorrect adjustment, but the adjustment cannot be changed.

Alternatively, a pin may be inserted between the tumbler and the transmission members if, for example, the design of the unlocking mechanism so requires, when replacing the existing inserts with new ones. The effects of the solution remain consistent with the pinless design and this is another advantage of the liner design.

If the tumbler is pressed against the transmission members by a spring, the reliability of the insert is further increased.

Alternatively, the transmission members that are in contact with the key may be formed as lead shaped members. The other transfer members consist of spheres or flat lenses. The advantage is then very easy handling of the key, where its insertion / withdrawal resistance is further reduced.

The advantage of the design is the possibility of using a multiple key thanks to the possibility of installing two to four tumbler blocks to one cylinder part of the lock cylinder. In this way, unauthorized manipulation of the cylinder can be made more difficult, as can the number of locking combinations of the lock.

Overview of the drawings

BRIEF DESCRIPTION OF THE DRAWINGS The invention is illustrated in greater detail in the accompanying drawings, in which: FIG. 1 is a schematic front view of a lock cylinder and FIG.

Example of a specific embodiment of the invention

The security lock cylinder consists of a cylindrical part y and a tumbler block 1 ''. The tumbler block has a head through which the tumblers pass.

The tumblers are supported on the transfer members, the last of which is formed as a lead-in shaped member. The lead-in shaped member extends into a recess for an unmarked key which is terminated by a transverse cutout provided with a gland. The key recesses are further interlocked with locking pins arranged parallel to the recess *? for the key. Tumblers. are fitted with a spring resting on the head of the tumbler block \

In FIG. 2, the same lock cylinder is provided with a self-locking mechanism formed by a rocker arm. In this case, the tumbler block head is not passable and the tumbler spring is supported on the head base of the cylindrical portion. inserts. The control arm is in contact with the tumbler. provided with a cutout

The function of the insert is that when the unmarked key is inserted into the recess, the key lock code moves the leading shaped members, the transmission members and thus the tumblers to a position allowing the release of the unlocking mechanism and thereby unlocking the lock. In the case of an insert not a standard unlocking mechanism above the tumbler block, but the actual unlocking mechanism formed by the rocker, the function is similar except that the rotatably mounted cylindrical part of the insert 1 can be rotated only after proper tumbler adjustment. By rotating the cylindrical part ... of the insert 1, it can be directly unlocked, similar to the existing standard lock inserts. The hard material seal provided in the cutout 7 prevents the insert from being hollowed out. by removing the key and reducing the space for manipulation with pins.

Industrial applicability

The invention can be used to design security lock liners that can replace existing standard lock liners, regardless of the particular use and design of the unlocking mechanism.

Claims (7)

A security lock cylinder, in particular a door or a safe, provided with a tumbler tumbler, characterized in that each tumbler (inserts 1) is one side in contact with the unlocking mechanism and its other side is in contact with the key lock code through the transmission members. arranged in the cylindrical portion of the liner 2. The security lock insert according to claim 1, characterized in that a pin is arranged between each tumbler and the transmission members and is arranged in the tumbler block; 12i inserts Security lock cylinder according to claim 1 or 2, characterized in that the tumbler or tumbler pin is supported on the spring. arranged against the shoulder of the tumbler block Security lock insert according to Claim 1, 2 or 3, characterized in that the transfer member in contact with the key lock code is formed as a lead-in shaped member Security lock cylinder according to Claims 1, 2, 3 or 4, characterized in that it is provided with at least two tumbler blocks. 6. The security lock cylinder according to claim 1, wherein the cylindrical portion of the cylinder is provided with a recess arranged perpendicular to the key recess 61, wherein a plug is provided in the recess. 7. The security lock cylinder according to claim 1, characterized in that it is provided with its own release mechanism formed by rocker arms; . , where each tumbler is assigned one rocker arm. Whose boom control) is in contact with the cylindrical portion of _the napkin .. 'and the actuating arm ^of LJL is in contact with the tumbler. 7,.