DE2351310A1 - SECURITY LOCK WITH KEY - Google Patents

Description

Applicant: SOCIETE VACHETTEy 92 Boulevard Richard Lenoir,

75011 Paris, France

Designation: Safety lock with key Our reference: 710 pg 731

It is known that security locks have their bolts that are generally moved by the beard of a safety drum, which consists of a stator or housing, in which Inside can turn, a rotor or cylinder. This twist is caused by a key that is inserted into the rotor which causes the movement of the beard »The safety lock can be single or double acting, depending on it is desired to insert the key from one side or from both sides of the door to which the lock is attached must become. With conventional security locksmiths, the Rotation of the cylinder in relation to the housing in the absence of the appropriate key locked by pistons that side by side in the same diameter plane of the housing

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are arranged, said pistons inside werden- pressed by springs in the direction according to the cylindrical recess of the housing in which the lock cylinder is arranged "The cylinder has a diameter plane imposing a .. flat key a shallow recess as well as seats of pins which lie in the plane of this flat recess and open into it in such a way that the axis of one of the seats of the rotor pin lies in the same plane as the axis of one of the seats of the stator piston. In the absence of the matching key, at least one of the pistons which press on each of the pins protrudes through the line between the rotor and the stator or between the cylinder and the housing, whereby the rotation of the cylinder is blocked. Such a device is shown, for example, in Pig »2 of French patent application 72-09776.

By using hooks, lockpicks or vibrating devices, and by taking advantage of the space that may exist between the pins and their seats, it is still possible, in the absence of the key, to move the pins one after the other in order to finally achieve the rotation of the cylinder in the housing .

To avoid this disadvantage, the French patent 71-01991 already proposed, inside the rotor perpendicular to the flat opening into which the flat key is inserted

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is to arrange slidable pistons, which are at one end Support in a recess on the side of the flat key is attached and the other, suitably rounded end depending on the position of the piston completely inside the rotor and or flush with the dividing line between rotor and stator is partially inside a cavity made in the stator, the rotation of the rotor is then blocked. The rotation of the The rotor is locked by the transverse piston when this piston is pushed back by the key, be it by Absence of recesses opposite the pistons or if there is a recess that is not deep enough, if one however, on the key, opposite the transverse piston, systematically creates deeper recesses than all the lateral ones Recesses of the original key move the transverse ones Pistons under the rotating action exerted by the user of the key towards the interior of the recesses and do not lock the rotation of the rotor, although the side recesses of the key used do not match those of the original key to match.

In the French patent application 71-43447 is also a Safety lock described in whose rotor transverse pistons are arranged, which are perpendicular to the median plane of the in the rotor inserted key arranged profiles cooperate. If the transverse profiles of the key have a too

have great depth, the key cannot reach the bottom of the

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Rotors penetrate, because the transverse Kolfeen collide with their other ends to the stator, whereby the key entry is blocked · When the transverse profiles of the key close are weak or do not exist at all, the key or the lock pick can be pushed into the rotor, whereby moving the conventional pins and causing the rotor to rotate; but this rotation can only be about one extend limited angle, because when moving the seats of the transverse pistons on the with the pins in connection standing conventional pistons can these latter KoI-. ben in the seats or holes of the transverse ones. Pistons that are not retained by matching cross-sections of the key, blocking the rotation of the rotor. The disadvantage of such a device is that in the absence of suitable ones attached to the side surface of the key Cross profiles it is nevertheless possible to achieve the rotation of the rotor of the lock by a certain angle, which often enough to operate the bolt of the security lock.

The present invention aims to provide a safety lock which, in addition to the conventional pistons and pins, which cooperate with a profile on the edge of a flat key, has locking elements in the rotor or cylinder of the Sdiosses and with one on at least one side surface the key mounted recess work together, the blocking should occur when the recesses do not exactly match that of the matching key and then no rotation of the rotor should be permitted.

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The present invention relates to a safety lock for actuating at least one bolt or for blocking an opening mechanism, with a housing with a cylindrical recess in which a cylinder is mounted which has a key opening with a profiled cross section for the introduction of a correspondingly profiled key . This safety lock is characterized in that the cylinder contains at least one locking element which consists of one or more elements, one of which can protrude into the key opening and another element of which can lead through the combustion surface between the cylinder and the housing and is under the action of a pressure element connected to an edder, this pressure element being able to move in the housing and, if necessary, penetrate the interface between the cylinder and the housing _e

In a preferred embodiment, the locking member in the rotor consists of two mutually supporting elements, one of which .that one can be pushed into the key opening and that others pass through the interface between the eotor and the stator can; the element, which can protrude into the key opening, consists of a stop that is in a Can move seat, the axis of which is inclined to the central plane of the key opening; the element of the locking member, which can pass through the separation surface between the rotor and stator, consists of a pin, one end of which is attached to the

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the prescribed stop and which can move in a seat, compared to the -when the rotor is in the position of the inserted key is in the stator. Seat is of the same cross-section, this seat a contains the pressure element forming piston which acts on the locking member and which is at the end that is not with the Pin cooperates, supported on a spring and under the action this spring stands, the pin has such a length that it is flush with the interface between the rotor and stator namely with a position of the stop between its possible extreme positions; the surface of the attack that is against supports the pin, is rounded or conical; the stop can be a ball; the seat has an end stop which limits the projection of the stop into the interior of the key opening; the key opening has at least one longitudinal rib which cooperates with a corresponding longitudinal groove of the key, the rib being parallel to the axis of the rotor and. in is arranged such a height that it is at least partially opposite the opening through which the seat of the stop opens into the key opening; the axis of the stop seat is perpendicular to the rotor axis and the seat emerges from the rotor to the outside through an opening at which a closure with a External profile is attached, which corresponds to the interface between rotor and stator; the axis of the seat of the pen is perpendicular to a plane that is perpendicular to the median plane of the key opening lies and she is dead by a certain distance.

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removed from this median plane; when the rotor is the position of the imported Wrench., The seats of the pin and the piston of the stator are coaxial with each other; the safety lock points at least two units, which consist of a locking member and a pressure element connected thereto, with at least a locking member is arranged on both sides of the central plane of the key opening; the lock has at least one piston-pin unit of the conventional type, wherein the pin is arranged in a seat of the rotor and the pin axis in the central plane the key opening, and wherein one end of the pin cooperates with a profile attached to the key edge and the connected piston moves in a seat in the stator and is under the action of a peder, wherein the axes of the piston and the pin are aligned when the rotor is in the position of the inserted key; the security * lock preferably has five conventional piston-pin units.

The subject of the present invention is also a key, which interacts with the safety lock described above, in which the seat of the stop is inclined to the central plane the key opening lies, the key having recess ^ on its broad sides, the axes of which are oblique to the central plane of the key

In a preferred embodiment, each recess of the

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Key on the edge of a groove that corresponds to a rib, which the inner profile of the key opening of the rotor "forms the reason the recess can be spherical, frustoconical, conical or flat at the end; the key has at least one recess on each broadside on

It is clear that the security lock according to the invention is extremely difficult to break open by means of a lock pick, because the Presence of the pins, which are actuated by the balls "protruding laterally into the key opening, no longer allows the slight rotation of the rotor, which is necessary to "open the pins in a classic lock pick." push back one after the other «the piston-pin-stop (lugel) units can very easily be added to security locks of the conventional type, since their position is at a distance those piston-pin units are offset which with the profiles of the key edge cooperate · The exact imitation of the key of a security lock according to the invention is very difficult, because even if the recesses on the broad sides of the key possibly without too much difficulty can be positioned, it is very difficult to determine the axis of the recesses and their depth with accuracy, which ensures a high level of security when using such security locks

The operation of the safety lock according to the invention is

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easy to understand .: If you insert the key into the key opening of the rotor or cylinder, the stop, for example the ball, which initially protrudes maximally into the inside of the key opening, is pushed back by the key and the stop pushes the during its movement Pin back, which is supported on the side on the stop which was opposite the side of interaction with the key. The pin pushes the piston back during its movement and compresses the spring connected to it ^ and when the appropriate key is inserted into the lock was added _p are the end faces of the pin and the piston in the amount of · Irish surface between the rotor and stator so that the rotor can rotate relative to the stator _e When the key has no recess or a recess of insufficient depth or one recess "in which the stop (z _o as ball) can not penetrate deep enough _ß the stop is too far in its seat zurückg Pressed and the pin penetrates the seat of the piston, blocking the rotation of the rotor. If, on the other hand, the recess of the key is too deep, the stop, which is pressed by the pin under the action of the spring piston, protrudes too far into the inside the key opening before ^% which has becomes the sequence _s that the piston penetrates into the seat of the pin, which also blok rotation of the rotor ~ kiert "

The invention and its further advantages are explained in more detail on the basis of the exemplary embodiment shown schematically in the figures explained It shows:

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Pig. 1 a perspective view of a safety lock according to the invention,

Fig. 2 is a section along the line XI-II of Fig. 1, wherein the The key is not inserted in the lock cylinder,

Mg »3 the section of FIG. 2, with the matching key in the cylinder is inserted,

fig. 4 shows the section of FIG. 2, with sin keys in the cylinder is inserted, the one side recess of too low Depth has j,

5 shows the section of I ¹ Ig ₀ 2, with a key inserted in the cylinder ₈ which has no lateral recess at all,

6 shows a perspective illustration of a device according to the invention Key",

In the drawing, the stator or the housing of the security lock according to the invention is denoted by 1 and. The rotor 2 is arranged in a cylindrical recess of the stator 1 and it can rotate therein. In the rotor 2 there is a key opening 3 with inwardly projecting ribs 4 parallel to the rotor axis »

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which extend over the entire length of the opening 3. The ziM insertion into the opening 3 certain key 5 has on. its side faces have grooves 6, the profile of which corresponds to the profile of the ribs 4 and which "extend over the entire length of the key. The lock has five pin-piston units of the conventional type _- as shown in FIG. 2 of French patent application 72-09776 ists each of these units has a piston which is located at under the action of a spring in a cylindrical seat of the stator-perpendicular can move to its axis in the Mittelebenö, and a pin which can slide in a seat of the rotor, said pin on _p one end is supported on the piston and at the other end cooperates with a key profile which is attached to the edge of the key inserted in the opening 3. These piston-pin units are of the conventional type and are not shown in the drawing «In fig. 1 you can see the channel ends 7 of the seat of the piston located in the stator 1; they correspond to five pins of the five conventional units, which the stator 1 has, and on the edge of the key ·: 5 five notches 7a are made «

The stator 1 has three piston-pin-stop units according to the invention. for each of these units is in the stator parallel to its median plane and perpendicular to its axis; a hole 8 attached, the outward through di_e opening 8a opens, which is closed by means of a plug 9. The three openings 8a are shown in fig. 1 to see: you are

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arranged on both sides of the central plane of the stator, and the axes of these three bores 8 are at the same distance from this central plane. Each hole 8 opens into the cylindrical recess, is supported in which the rotor 2 "When the rotor is the position of the Keyring introduction has d _e h. when the central plane of the key opening 3 coincides with the central plane of the stator, each bore 8 in the rotor is extended by a bore of the same diameter Middle plane of the key opening 3 forms. The bore 11 opens into a hole 12 which is made in a lateral surface zone of the rotor. In the hole 12 a closure 13 is arranged, the outer surface of which is adapted to the profile of the cylindrical outer surface of the rotor is still present in the area of the opening through which the bore 11 opens into the key opening 3. In this way, the rib 4 forms a limit stop 14 for a ball 15 »whose diameter corresponds to that of the bore 11. Inside the bore 18 there is a pin 16, the lower conical part 16b of which is profiled in such a way that it assumes the concave curvature of the separating surface between the rotor and the stator when it is aligned with the height of this focal surface. In the bore 8 there is a piston 17, the lower conical end 17a is profiled so that it

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assumes the concave curvature of the interface between rotor raid stator. On the upper part of the piston 17 a spring 18 a ₉ acts between the piston 17 and the closure stopper 9 included IST ".

Figo 2 shows the position of the various elements of the lock when no key is inserted into the opening 3 _{o The} spring 18 pushes the piston 17 and the pin 16 downwards, which holds the ball 15 to the insert. against the stop 14 brings _ö . which is formed by the rest of the rope of the rib 4. In this case 15 projects the ball in the interior of the key opening 3 from ₀ The piston traverses the! Erennfläche z \? Regard rotor and stator and ER- Blok = kiert consequently the rotation of the rotor 2 in the stator 1 _O

If you insert a key 5 into the opening 3 _? d @ r aa its broad side in the vicinity of the upper edge of the Btafe β matching recesses 19 _s take the eleamete of the lock ses the position shown in Figo 3 ₀ It is necessary that the recesses 19 on the key the corresponding a. Bores 11 are opposite and that they have a depth ₉ which depends on the length of the pin 16. In this case, the ball 15 © pushed back by the key 5 penetrates a little into the bore 11 and it pushes the pin 16 upwards the surface 16b of the pin is aligned with the interface between rotor and stator? at the same time, the piston 17 is pushed back upwards and it is also aligned with the counter surface

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between rotor and stator »The rotor 2 can then be relatively to the stator 1 three lines;

In Pig x 4, the position of the various elements of the lock is shown when a key 5 is inserted in the opening 3, the recesses 19 having too low depth or with such a profile _B that the balls 15 do not penetrate deep enough into the recesses can »In this Pail the ball 15 is too deep in the Boimmg 11 _s so that the pin 16 penetrates into the bore 8 _o Therefore the rotation of the rotor 2 relative to the stator 1 is blocked _o

ga 5 is the position of the elements of the lock rgestellt there Ia the Schlüsselöffsiimg © is inserted in the key which has no lateral recess 8 the ball 15 penetrates completely into the bore 11 and the pin 16 is according to whether & n key, and it penetrates in. the bore 8 ain ^ · whereby the rotation of the rotor in the stator "is blocked _o

_S If the recess -19 in. The Yerbidnung zn with a unit 15-46-17 deep is the location of the various elements the same How-that of the prop _o 2 _{P P} such that the cold in the bore 10 penetrates _ΰ whereby the rotor is "blocked" relative to the stator

You can therefore see that by means of the gate direction 15 = Ί6 = 17 the

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Locking of the rotor 2 causes. if the recesses 19 of the key 5 are poorly positioned or poorly aligned or poorly profiled «, the safety lock according to the invention therefore has the advantage of ensuring a high level of security, because the rotor is locked" for all! "for all of them one of the recesses 19 of the key 5 nieht precisely with the recess coincides ₉ the corresponding matching, the lock opening key has "this circumstance makes the Sfachmachung of a key of the lock according to the invention very difficult, so that this is for the user very safe _o

The breaking of a safety lock according to the invention is very difficult, if not impossible ^ v / eil is simultaneously would treat the .zusammenwirkenden with the profile of the key edge pins and cooperating with the recesses 19 of the circuit el side surfaces balls 15 _"β It is noted that by the presence of the balls 15, the number of possible combinations with one and the same type of lock can be increased considerably, depending on where the units 15-16-17 are placed on either side of the conventional pin-piston units Safety lock shown in the drawing leads to the connection of the two units 15-16-17 _y which are each placed in one of the eight possible positions between the five conventional pins on one side or on both sides of the central plane of the stator, - if you have two heights or «Lengths for the pin 16, that is, two runs of the recesses 19 assumes - to 64 possible variations of an S security lock,

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so that with this factor the number of usual variations a security lock with five pins is multiplied »

It goes without saying that the "described embodiment" is only exemplary and does not limit the scope of the invention,

Claims 0 9 8 18/0326

Claims (1)

- 17 claims 1.) Safety lock to operate at least one bolt or to block an opening element, with a housing (Stator) with a cylindrical recess in which a Zyr linder (rotor) mounted 1st, which has a key opening with a profiled cross-section for the introduction of a corresponding profiled key, characterized in that the cylinder (2) and the housing (1) contain at least one blocking element, which consists of several elements (15, 16, 17), of which at least one is parallel to the key opening (3) and from its central plane is removed and of which an element (15) of this organ and a pressure element (17) acting on it through the 2 raceway between cylinder (2) and housing (1) can lead through, this pressure element (17) under the action of a spring (18) stands and in the housing (1) for possible crossing of the interface between the cylinder and the housing is movable «, 2. Safety lock according to claim 1, characterized in that that the locking member in the rotor (2) consists of two mutually supporting elements (15, 16) which form an angle. 3β safety lock according to claim 2, characterized in that 409818/0 3 26 " ₁₈ " that the element which protrudes into the key opening (3) " can, a stop (15) which is in a seat (11) is displaceable, whose axis to the central plane is the end opening (3) runs diagonally, 4 · Safety lock according to claim 3, characterized in that that the element of the blocking element, which can cross the interface between rotor and stator, is a pin (16) is located at one end (16a) on the stop (15) of the rotor (2) and which can slide in a seat (10), on the opposite side - when the rotor (2) is in the position of the Key entry has - a seat (8) of the same cross-section is located in the stator (1), with a Piston (17) is arranged as a pressure element acting on the locking member and under the action of a spring (18) stands, which presses on that end of the piston, which is remote from the pin (16), and wherein the pin (16) a has such a length that when the stop (15) is in a position between its possible extreme positions with the parting surface between rotor and stator is aligned. 5 «, security lock according to claim 4, characterized in that that the surface of the stop (15) "which is supported on the pin (16) is rounded or conical" 6β safety lock according to one of claims 3 to 5 »thereby 409818/0326 - ¹⁹ - - 19 marked that the stop is a ball (15). 7. Safety lock according to one of claims 3 to 6, characterized characterized in that the seat (11) of the stop (15) has a Bndbegrenzung (14), which limited the projection of the stop into the interior of the key opening (3) 8. Safety lock according to claim 7 »characterized in that that the key opening (.3) has at least one longitudinal rib (4) with a corresponding groove (6) of the key (5) cooperates and which is parallel to the rotor axis and is arranged at such a height that it is at least partially opposite the opening through which the seat (11) of the stop (15) opened into the key opening (3) 9. Safety lock according to one of claims 3 to 8, characterized characterized in that the axis of the seat (11) of the stop (15) is perpendicular to the axis of the rotor (2) and that the Seat (11) opens out from the rotor through an opening in which a closure (13) sits with an outer profile, which is the irennflache between rotor (2) and stator (1) corresponds. 1Oi security lock according to claim 4, characterized in that that the axis of the seat (10) of the pin (16) is perpendicular is a plane which is perpendicular to the central plane of the Sohluss opening (3) lies, and that this axis has a certain 4098 18/0326; - 20 - - 20 is at a distance from this central plane. ο Safety lock according to one of claims 1 to 10, characterized characterized in that it has at least two units, consisting of a locking member and one connected thereto There are pressure element, with at least one locking member arranged on both sides of the central plane of the key opening (3) is β 12, security lock according to one of claims 1 to 11, characterized characterized in that there is at least one conventional KoTben pin assembly having, the axis of the pin arranged in a seat of the S.otors (2) in the middle bit of the Key opening (3) is and one end of this pin with a profile (7a) cooperates, which at the Eante of the Key (5) is attached, wherein the connected piston is also displaceable in a seat (7) of the stator (1) is and is under the action of a spring, and that the axes of the piston and the pin are aligned when the Rotor (2) has the position of the key entry 13. Safety lock according to claim 12, characterized in that that it has five conventional piston-pin assemblies. 14 * Security lock with at least one operated by a beard Bolt, with the beard from the rotor of a security 4D9818 / Ö326 " ²¹ ■" drum is driven, characterized in that the security drum of the one according to one of claims 1 Ms 13 corresponds. 15 · Key to interact with a safety lock according to any one of claims 1 to 13, in which the seat (11) of the stop (15) is inclined to the central plane of the key opening (3), the key on at least one Has recesses on the broad side, characterized in that the axis of each recess (19) is inclined to the central plane of the key (5) and that each recess (19) on Edge of a hat (6) is attached, which corresponds to a rib (4), which the inner profile of the key opening (3) of the Rotor (2) forms, 16 «, key according to claim 15, characterized in that the The base of the recess (19) is spherical 17β key according to one of claims 15 or 16, characterized in that that he has at least one recess on each broad side (19) has o 409818/0326