DE1678089A1 - Lock that can be operated with two keys - Google Patents

Description

The invention relates to a two-key operated lock for "safes, burglar-proof rooms and the like., And in particular a cylinder lock for safes etc. that only locked and opened with two different keys can be inserted one after the other into the lock Need to become.

One object of the present invention is a cylinder lock For securing safes and the like. That is constructed so that therein a central rotating cylinder and a central rotating cylinder is arranged with a shaft is provided, which is associated with the bolt in connection can be, with both cylinders telescopically

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pushed rotatable within another fixed cylinder are fitted so that they are supported by springs, pins and Tumbler pins in dependence on each other and in particular by two different keys that are inserted one after the other must be operated.

Another object of the present invention is particularly a cylinder lock to improve security, only with two different keys, a first and a second, through their relative movements in relation to the cylinders can be locked and unlocked, v / whether each of these keys of si & SHi different officials or employees to the Purpose is taken into custody that the security is guaranteed even if an employee of his key is robbed, as it can be in a bank robbery the pail.

Further objects and gate parts of the present invention are disclosed the following description with reference to the drawing, which represents an example embodiment = and in the

U ¹ Ig. Figure 1 is a front view of a lock according to the invention to be operated with two keys.

fig. 2 is an axial section through this according to the invention Lock. '

Pig. 3 is also a cross section showing the lock in the State shows where the first key in the real

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Lock or housing is inserted.

J ¹ Ig. 4 shows the state * in which the second key is inserted into the lock.

]? ig. 5 is a cross-sectional view showing the lock is unlocked by the second key.

J? Y. 6-is a rear view of the lock according to the invention, from which the hedgehog housing has been taken away, Pig. 7 is a cross section taken along line VII-YII of FIG. 3. 2. -

l ^? ig. S is a perspective view of the two key operated lock itself.

IPig. 9 is a perspective view of the central rotary cylinder.

S ¹ Ig. 10 is a perspective view of the central rotating cylinder. .

In the drawing, 1 denotes a bolt housing ", 2 a latch, 3 an actual lock" or Housing (lock ti proper) that locks, is cylindrical and must be operated with two keys, with a hand 3 ^{iI; i} »on the front and a projection 3 ¹ on the back and also a washer 3 adapted to the front ¹ V.! This actual lock or housing 5 has a suitable number of bores 3 "', 5""S which are exposed on the upper and lower surfaces so that pins can be inserted.

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Various pins 4 × 4 * of different lengths are arranged in such a way that the longer of them are inserted vertically displaceably on the front of the lock; Springs 5.5 * of different lengths are inserted into these holes or bores and arranged so that the shorter of them are in the bores on the front of the lock. The springs inserted and arranged in this way in the bores are brought into contact with the pins 4,4 ', while the bores are blocked by the locking members 6,6'. Hit 7 is a middle rotary cylinder referred to, which is rotatably fitted into the housing 3 and a band 7 ""'on the front and on the back of the lock has a projection 7 ¹ , with an arcuate thrust plate 8 to the set * back with Screws 8 'is attached. Different tumbler pins 9 of different lengths are inserted into the bores 7 ″ open on the top of the cylinder body of the central rotary cylinder and arranged so that the shorter of them are vertically displaceable on the front of the lock, while on the other hand different tumbler pins 9 'of different lengths in the holes 7 "'eiiige-; sets and are arranged so that the longer of them are also vertically displaceable on the front of the castle.

Furthermore, there are springs 10 for application to these tumbler pins 9 'provided so that the shorter of them on the inside

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the front side of the lock, and that they are blocked by the locking members 11. Hit 12 denotes a locking ball which is inserted into a guide bore '5 ^and ' of the housing 5 , this ball being pressed on by a spring 13 and being held by a locking member 14. This ball can snap into a concave recess 7 ″ ″ of the central rotary cylinder 7 when the rotary cylinder 7 is rotated and one end of the stop plate S arrives at the gate 3 ′ and is held. Kit 15 is a central rotary cylinder, which has an edge 15 "" ^r on the front side and engaging parts 16 'of an engaging disk 16 on its , which can enter into connection with the bolt 2. Different tumbler pins 18 are inserted into the upper openings 15 ^{1 of} an appropriate number of bores 15 ', 15 ", which are exposed on the cylinder surface of the central cylinder 15, and are arranged so that the longer of them are vertically displaceable on the front side of the lock ^{Hit 19 denotes a locking ball which is inserted into a guide bore 19 1} provided in the central rotary cylinder 7 and is pressed on by a leather 20 blocked by a locking member 21. This ball 19 can snap into a concave recess 15 ″ ″ in the central rotary cylinder 15 when this central cylinder makes a half turn so that the entry part 16 'of the engaging disk 16

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hits the "projection 7".

The working of the above, with two keys too actuating cylinder lock is shown below using an example shown · with this lock on the casing of a safe.

Since the holes ^ '", 3""on both sides, the upper and lower of the housing 3 are open, pins 4? 4 ^T and springs 5,5' are inserted into these holes 3"', 3 "", which are closed with the locking members 6,6 ', and since the holes 7 ", 7 ^1M are open on both surfaces, the upper and the lower surface of the central rotary cylinder 7, in these holes 7", 7 "' Zulial processing st If te 9,9 'are inserted, while the springs 1Q rest in the bores on the locking members 11. This actual lock or this housing 3, ie a fixed cylinder, is then pushed telescopically onto the central rotary cylinder Shank 17 on ,, which can be connected to the bolt 2 in the housing 1, and this central cylinder 15, the inside with tumbler pins 18 in the upper openings 15 'of the bores 15', = 15 "all on the lower and upper Side of this lie, is provided, becomes middle in this The rotary cylinder 7 is clipped in.

The process of unlocking the fixed lock described above is as follows:

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First the first key A is ^{inserted into the keyhole 15 "f of} the central rotating cylinder 15, the tumbler pins 18 in the bores of this cylinder 15 being lifted due to the prongs of the key A, as shown in FIG. 3. The top parts of the longer tumbler pins 18 of different lengths are pushed in a suitable number into the bores of this central rotary cylinder 7 from the bores of the central rotary cylinder 15 so that these two cylinders are connected of the surface of the central rotary cylinder are arranged in line with the upper surfaces of the bores of this central rotary cylinder, and it therefore brings the lower ends of the pins 4 in the bores of the housing 3 also in line with the lower surfaces of the bores 5 "' TOIi this. On the other hand, since the lower side of the bores of the middle rotary cylinder 7 closed by the locking members 11 ", the upper ends of the pins 4 are ^l 3-ehäuses 3 in line with the upper surfaces of the holes aligned in the bores of the. When in this state, the first key A is turned clockwise, both the central rotary cylinder 15 and the middle rotary cylinder 7 together make a half turn, in this position one end of the curved stop plate 8, which is on the back

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of the middle rotary cylinder 7 is screwed, is brought into contact with the gate 3 'of the housing 3, so that the middle rotary cylinder 7 is stopped. In this paused Position is determined by each 13 the ■ locking ball 12, the is inserted in the Pührungsbohrung into the concave recess 7 "" of the central rotary cylinder 7 pressed in, so that a shift or a game of the central rotary cylinder 7 with respect to the housing 3 is blocked or prevented so that this position of the middle rotary cylinder is maintained.

After that the first key A has now been turned half a turn this key A is withdrawn and then a second one Key B with a different toothing or different Prongs inserted into the keyhole with its prongs pointing downwards. The prongs of key B cause when he is inserted in the keyhole, like in Pig. 4 shown, that the lower! parts of the tumbler pins 18 along the lower Side of the bores of the central rotary cylinder 15 in a line lie. Furthermore, the tumbler pins 9 are also with the upper side of the bores of the central rotary cylinder 7 in a line, while on the other hand the lower parts of various longer tumbler pins from these tumbler pins 9 on the back of the middle rotary cylinder 7- into the Bores of the housing 3 are pushed in, whereby this middle rotary cylinder 7 and the housing 5 connected to one another

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will. Thereafter, when the second key B is turned clockwise, the central rotary cylinder 15 alone rotates one full turn, and the square shaft 17 provided at the rear of this central rotary cylinder follows the rotation of the central rotary cylinder, and in this way the bolt 2 can be lowered so that the lock is opened. In the position in which the central rotary cylinder 15 has just turned half a turn, the one entry part 16 ^{1 of} the engaging disk 16 provided on the rear side thereof contacts the projection 7 ^{1 of} the central rotary cylinder 7 and is stopped thereon while in the

the -

Meanwhile / into the bore of this central rotary cylinder 7 inserted locking balls 19 by the spring 20 into the concave recess 15 ″ ″ of the central rotary cylinder 15 clicks into place so that a move or play with the middle one Rotary cylinder 7 prevents and the holding position of the central Rotary cylinder is retained.

The act of locking the inventive, with two Keys to be operated lock proceeds as follows: First, the second key B is in the keyhole 15 "' of the central rotary cylinder 15 is inserted with its prongs directed downwards. These prongs of the key, B effect then that the upper ends of the tumbler pins

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come into line with the upper surfaces of the bores of the central rotary cylinder 15, while the lower ends of the tumbler pins 9 'of this central rotary cylinder 7 are also brought into line with the lower surfaces of the bores of this central rotary cylinder 7. On the other hand, the upper cables of the longer pins 4 'are pressed into the bores 7 "of the central rotary cylinder 7 by the springs 3""from a suitable number of pins 4' in the housing 5, so that the housing 5 is connected to this central rotary cylinder 7 Thereafter, when the central rotary cylinder is rotated by this second key B in the opposite direction as when unlocking alone, the other end 16 * of the engaging disc 16. on the rear side of the central rotary cylinder 15 comes into contact with the gate recess 7 ^{l of} the central one Rotary cylinder 7, in a position in which this central rotary cylinder has made a half turn, so that the shaft 17 follows half the turn of this central rotary cylinder, so that the head part of the bolt protrudes from its housing, whereby the lock is locked.

In this state, the second key B is then withdrawn and the first key A inserted in its place in the keyhole 15 "'of the central rotary cylinder 15. The prongs of this Keys then press the tumbler pins 18 of this central rotary cylinder 15 down and continue to push the lower ones

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Helle of these into the bores of the central rotary cylinder '7, so that this central rotary cylinder and the central rotary cylinder are connected to one another. Then the assembly of the tumbler pins 18 brings the lower ends of the tumbler pins 9 into line with the lower holes in the bores of the central rotary cylinder 7 and the key can therefore be turned counterclockwise, which then causes the stop plate 8, which is on the Rear of the central rotary cylinder 7 is provided, in contact with the "projection 3 ¹

? ■. ■ he comes, which protrudes on the back of the housing 3, and / is

stopped at it in a position! in which the central rotary cylinder 7 and the central rotary cylinder 15 have together made half a turn.- In this one. Position the first key is withdrawn, whereby the 3? Edern 5 of the housing 3 the lower ropes of the longer pins 4 provided on the front side of the housing from a suitable number of these pins 4 in the bores of the housing into the bores of the middle " Push in the rotary cylinder so that this middle "rotary cylinder is connected to the housing. Since the more common locking pins 9 on the back of the middle ₌ rotating cylinder are pushed out by the pins 4 and the lower ropes "of these locking pins 9 are pushed into the bores of the central rotating cylinder 15, the housing 3 $ of the idittlere rotating cylinder 7 and further; 'the central rotating cylinder 15 interconnected so that the barrier is perfect

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If the gate direction according to the invention, as described above works, on! safes or the like. is used, the Security during the laughs and outside of office hours, as well as during normal office hours due to the dependent Effect of the two keys A and B are different ! Shape can be guaranteed, whereby the lock can only be opened and locked with this key. Therefore, even if the pail of a bank robbery or threat during the working hours come, and one of the two employees who individually hold the two different keys, one of them Key is robbed, the backup of an Iresor or the like. cannot be lost. Accordingly, the present invention is extremely advantageous and the well-known cylinder locks far superior. ·

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Claims (1)

- 1 O - Pat e η t a η s ρ r u c h Lock operated with two keys, which can only be operated by two different keys can be opened and locked, characterized by a cylindrical housing with a Unterlegring adapted to the front side and with a protrusion at the back is provided, the top and bottom Surfaces of this housing are provided with an appropriate number of holes, through pins and springs, which are in this Bores are used, which blocked with locking members are, by means of a middle rotary cylin, with a brazen protrusion and a-stop plate- on the back, which can be rotated in this housing is pushed in by further pins and springs, which are inside in the on the upper and lower sides of this middle rotary cylinder exposed bores attached are, the holes are blocked on one side with locking members, by a locking ball and a spring, the is inserted into a guide hole provided in this G-housing and is blocked by locking members by a concave extension, into which this locking ball engages, -an middle rotary cylinder, the one on the inside on its back is provided with a square connecting shaft, the one with this thrust washer as with the bolt, a connection manufactures, through a central rotating cylinder, in the inside 20Ö817 / 0012 Guard locking pins in its available in a two & moderate number Holes are used, which are at the top and lower surface of this central cylinder are provided in which one? central "milling cylinder is pushed through a further locking ball and another spring which is inserted into a guide hole provided in this central rotary cylinder, this guide hole through a Locking member is blocked, and finally by another concave recess in this central Urehzyliiider for Latching of this locking ball is formed, 209817/0012 BAD ORiGJNAL Blank page