DE9104766U1 - Anti-panic door lock - Google Patents

Description

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6 Anti-panic door lock

Description Genus

The innovation concerns an anti-panic door lock that can be operated by a key and/or a handle, with change, tumbler, latch and latch bolt, which are arranged in a lock housing, with an additional latch arranged between the latch bolt and the latch, which, like the latch and the latch bolt, each protrudes from an opening in the cuff against the restoring force of a spring element, whereby the additional latch is guided in a long slot on the base of the lock housing and controls an automatic locking mechanism for the latch, which is also arranged in the lock housing.

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6 State of the art

A mortise door lock with at least one spring-loaded latch guided in the lock housing and/or a latch bolt or latch and change function of the lock that can be operated by a key is already known from DE-OS 26 01 774, whereby the latch bolt has a lead in relation to the latch, such that the latch bolt protrudes by a certain amount with the free end of its head over the free head end of the latch even when not pre-locked by a key, whereby a latch locking slide is arranged parallel to the cover - immediately behind it - which is forced by the latch bolt when the door slams shut and is pushed away from the movement area of the latch in the direction of the latch bolt and is controlled with a locking projection behind the latch head when the heads of the latch and latch bolt emerge, blocking this against longitudinal displacement directed into the lock housing. The latch bolt has a projection to which a control pin is coupled, which engages in a guide rail of the latch locking slide. The guide rail of the latch locking slide consists of a guide

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

slot, which has two parts, a first part running parallel to the latch bolt's long axis and a second part opening into this first part at an obtuse angle. When the latch and latch bolt are inserted into the lock case, the control pin is arranged in the second part of the guide slot, which runs diagonally upwards, and moves as the latch locking slider is increasingly displaced towards the latch, i.e. as the latch head increasingly emerges from the faceplate in the second slot part in the direction of the first slot part, while in the locking position it enters and remains in the first slot part. The latch locking slider is guided on one side through the inside of the faceplate and on the other side through a spacer bush. The nut arranged between the latch and the latch bolt has two levers, one of which interacts directly with the latch and the other with the latch bolt via another lever pivoted in the lock housing, so that the latch and latch bolt can be moved synchronously when a handle is operated. The change lever arranged on the side of the latch bolt facing away from the latch is designed as a one-armed lever and is pivoted so that it controls the rest of the lock fittings.

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

gripping the latch with its free end. The first part of the slot in the guide runs diagonally downwards towards the cover and forms an acute angle with the longitudinal axis of the bolt, while the second part of the slot runs parallel to the longitudinal axis of the bolt, whereby the locking slide can only be moved into its locking position behind the latch head by a control pin connected to the bolt when the bolt is moved into its locking position using a key. The change lever, which essentially spans the lock mechanism, is pivotably mounted on a pin connected to the bolt tail and acts on the latch with its free end. Parallel to the latch bolt, a locking latch is arranged, which has a locking pin on its section located in the lock housing, which reaches through an opening of a locking slide assigned to the latch bolt, such that when the door is open, the locking slide is held in the open position by the locking pin of the locking latch, while when the locking latch is pressed in (door closed), the locking slide is released and is pushed forward by spring force in the direction of the latch bolt and is connected to a locking claw behind

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickelsbach 8, D- 4030 Ratingen 6

grips a part of the latch bolt and blocks it from sliding into the lock case.

From DE-OS 39 38 655 an electromechanical door lock with a lock housing is already known, in which a locking bolt is locked in a protruding position and can be electrically retracted into the lock housing, whereby a spring-loaded latch protrudes from the lock housing and centers the bolt in an opening in a strike plate arranged for the door lock, with force transmission members for transmitting the force from an electrical actuating device to the bolt. The latch has a central part that is movable inside the lock housing and a wedge-shaped part that protrudes at least partially from the lock housing when the latch is in the protruding position and that is connected to the central part in such a way that a pivoting movement of the wedge-shaped part relative to the central part is possible, so that the latch can be pressed into the interior of the lock housing when a force acts on the wedge-shaped part from one or the other side of the lock housing in the direction of opening or closing the door, the lock housing having a separate locking device for the latch.

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

which is arranged in such a way that it prevents movement of the latch into the interior of the lock housing, whereby the force transmission members have a force transmission member which is movable at least substantially in the longitudinal direction of the door lock, whereby the transmission movement of this member releases the locking of both the bolt and the latch. The force transmission member can be arranged in such a way that it causes the bolt to be locked in one end position. When the force transmission member moves from the position locking the bolt to the other end position, the bolt can be simultaneously retracted into the lock housing. The latch is only released from its locking in the last stage of retracting the bolt into the lock housing, when the bolt has already been completely moved out of the opening in the strike plate.

This construction has an extremely complicated trap design, as the trap consists of two outward-facing, wing-like parts that move against each other around a common axis. In addition, the wings are movably mounted on an axis on the trap shaft. As a result, the trap cannot withstand high static loads.

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

Task

The innovation is based on the task of improving an anti-panic door lock of the type presupposed in the generic term of claim 1 in such a way that, with a simple, robust construction and high static loads for the latch and latch bolt, the latch and bolt can be locked or blocked without a key when the lock is installed.

Solution

The problem is solved by the features set out in claim 1.

Some advantages

When the door is opened using a handle or key, the automatic locking mechanism of the lock according to the invention is pre-tensioned. When the door is open, the latch bolt is in the pre-tensioned position.

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

When the door is closed, the additional latch releases the pre-tensioned automatic locking mechanism and the latch bolt closes 20 mm. This means that the door is automatically locked without a key.

At the same time the trap is locked.

In the lock according to the invention, the latch is blocked and the deadbolt is locked, so that there are two locking points, which provides optimum security. Locking is understood to mean that the latch and deadbolt protrude from the faceplate by at least 15 mm, for example.

Every user, whether with or without a key, not only closed the door after entering, but also locked the lock.

The lock is designed in such a way that the anti-panic function is always guaranteed by operating the handle from the inside since the door can always be opened from the inside using the handle or the key.

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

If the door is opened from the outside by changing the position, i.e. the latch bolt and the latch are drawn into the lock case, then a locking lug on the cylinder lock holds both latches in this position. The key cannot be removed in this position and the door cannot be automatically locked accidentally. This reminds the user to remove the key.

The latch bolt can be made of steel, while the lock case can be designed as a closed, galvanized, possibly painted case according to DIN 18 251.

The cuff is preferably made of stainless steel, while the lock nut can be stored in sintered metal rings as a so-called clamping nut.

Rosette holes are provided with protective sleeves. A ball oiler can also be provided.

The anti-panic lock can be used advantageously in conjunction with a security strike plate.

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

Further embodiments

Advantageous embodiments of the invention are described in claims 2 to 6.

When designed according to claim 2, an advantageous, relatively inexpensive construction is obtained for the additional latch, which is guided longitudinally via a slot running parallel to the longitudinal axis of the bolt or latch bolt shaft, arranged in the lock base with a projection, &zgr;. &Bgr;. an orthogonally protruding pin, and protrudes from an opening in the faceplate. When the door is locked, the additional latch is held in its depressed position by the strike plate.

Claim 3 provides a preferred embodiment for the locking part, which is arranged parallel and in the lock housing behind the faceplate, displaceable by a limited amount orthogonal to the bolt's longitudinal axis, and which, in the locking position, engages behind the latch with a free shoulder and blocks it.

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

Claim 4 describes a guard locking device in an inventive design.

Claim 5 describes a nut connecting lever according to the invention.

Claim 6 describes a further embodiment of the invention with a motor drive of a toggle lever joint arrangement which acts on the tumbler to move the locking device into the unlocking or passage position.

Claims 7 and 8 describe advantageous embodiments of the innovation.

The drawing shows the innovation - partly schematically - using two examples. They show:

Fig. 1 shows an anti-panic door lock according to the invention with the lock cover removed and the latch and catch in the locked (locked) state;

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen

Fig. 2 shows a further embodiment, also with the lock cover removed and with the latch and catch in the closed (locked) state;

Fig. 3 shows a latch bolt in plan view; Fig. 4 shows a side view of Fig. 3: Fig. 5 shows a plan view of Fig. 3;

Fig. 6 shows a nut connecting lever in plan view of the embodiment according to Fig. 1;

Fig. 7 is a side view of Fig. 6;

Fig. 8 a tumbler in plan view;

Fig. 9 is a side view of Fig. 8;

Fig. 10 a locking slide in plan view;

Fig. 11 is a side view of Fig. 10;

Fig. 12 an additional trap in plan view;

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

Fig. 13 is a side view of Fig. 12;

Fig. 14 a change lever in plan view and

Fig. 15 is a side view of Fig. 14.

The reference number 1 designates a lock housing base made of sheet steel, to which a cuff 2, also made of sheet steel, is connected in one piece, ζ. β. by screws, rivets, spot-welding or the like.

The reference number 3 designates a latch which can be moved in its longitudinal axis direction in the lock housing against the restoring force of a spring element 4, e.g. a compression spring made of steel.

In the embodiment according to Fig. 1, the spring element is arranged in a longitudinal slot-shaped recess 5 of a latch shaft 6, such that the spring element 4 is supported on the one hand against a front side of the longitudinal slot-shaped recess 5 and at the other end against a housing-fixed stop 7. The housing-fixed stop 7

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

can be designed as a screw bushing into which a screw (not shown) can be screwed to attach the lock cover (not shown).

At the end section facing a latch head 8, the latch shaft 6 is provided with a recess 9, which is designed to be flat on its side facing the lock housing base, while on its sides facing each other it is delimited by convex circular arcs 10 and 11. A long change lever 12 engages in this recess 9, which is arranged below a latch bolt 13 so that it can pivot around a housing-fixed bushing 14 parallel to the lock housing base 1 by a limited amount against the restoring force of the spring element 4. The change lever 12 can be seen in Figs. 14 and 15 and is made in one piece from stamped sheet metal, but can also be made from another material and has an eye 15 with a bore 16 on its end section facing the bushing 14, by means of which it is pivotably mounted on the bushing 14. The change lever 12 is cranked and curved in order to be able to perform its movements without hitting against lock fittings.

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

The latch bolt 13 has a latch-like head 17. Both the latch head 8 and the head 17 of the latch bolt 13 each have a starting bevel 18 or 19 (Fig. 3 to 5).

The latch head 8 and the head 17 of the latch bolt 13 protrude outwards from shaped openings in the faceplate 2, with the head 17 of the latch bolt 13 protruding from the faceplate 2 by approximately twice the amount as the latch head 8 in the locked position. For example, the head 17 of the latch bolt 13 can protrude from the faceplate 2 by 20 mm, while the latch head 8 only protrudes from the faceplate 2 by approximately 10 mm. The latch bolt 13 therefore has twice the clearance dimension as the latch 3.

The reference number 20 designates a lock nut which has a square opening 21 for receiving a pusher pin (not shown).

The lock nut 20 has two nut levers 22 and 23 arranged offset from one another by approximately 90 degrees with respect to the nut body.

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

In the embodiment according to Fig. 1, the nut lever 22 rests against the stop 7 in the position shown in Fig. 1, but can be brought into contact with the stop 24, which is integrally connected to the latch shaft 6, by turning the latch nut 20 via the handle (not shown), thereby pulling the latch 3 into the lock case.

The reference number 25 designates a nut spring which is attached with an eye 26 to a square 27 firmly connected to the lock housing base 1 and is supported under pre-tension via a web 28 against the nut lever 22 and constantly loads it in the direction of the stop 7.

In both embodiments, the nut lever 23 is pivotally connected to a plate-shaped locking device 30 via a nut connecting lever 29 (Fig. 6 and 7).

The nut connecting lever 29 also consists of a plate-shaped part, e.g. designed as a stamped part, which has a hole 71 at one end and an elongated hole 31 at its other end section.

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

The nut connecting lever 29 is mounted with its hole 71 on a pin 32 which is orthogonal to the nut lever 23 and has a circular cross-section. The pin 32 is connected in one piece to the nut lever 23.

The nut connecting lever 29 is coupled via an elongated hole 31 to an axis 33 which runs orthogonally to the surface of the tumbler 30 and is connected to it in one piece. The tumbler 30 is pivotally mounted about a pivot axis 81 fixed to the housing.

In the embodiment according to Fig. 2, the nut connecting lever 29 has an elongated hole 34 on its side facing the nut lever 23, the longitudinal axis of which runs parallel to the longitudinal axis of the nut connecting lever 29, while the nut connecting lever 29 has another elongated hole 35 on its opposite end section, the longitudinal axis of which is offset by 90 degrees to the longitudinal axis of the elongated hole 34. The elongated holes 34 and 35 are also pivotally coupled to the pin 32 and the axis 33, respectively.

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

Between the latch 3 and the latch bolt 13, an additional latch 36 is mounted orthogonally to the cuff 2 and can be moved against the restoring force of a spring arranged on the lock housing base 1, which spring tends to push the additional latch 36 outwards from the cuff 2.

As can be seen from Fig. 12 and 13, the additional latch 36 is also designed in the form of a plate and can be a stamped part. The additional latch 36 has a pin 37 on its side facing the lock housing base 1, with which the additional latch 36 is slidably guided in a slot (not shown) in the lock housing base 1. The longitudinal axis of the slot runs orthogonally to the faceplate outside 38. The additional latch 36 has a coupling claw 79 made of one piece material, which engages behind a coupling shoulder 80 of the latch bolt tail 73, so that the additional latch 36 and latch bolt 13 move together and synchronously in the lock case.

On its upper side, the additional latch 36 has a further pin 39 which engages in a slot 40 of a plate-shaped locking part 41, which runs at 45 degrees to the cuff 2. This plate-shaped locking part 41 has a slot-like

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

Opening 42 through which a pin 43 extends, which is firmly connected to the lock housing base 1 and extends orthogonally with its longitudinal axis from the latter into the lock housing.

The plate-shaped locking part 41 is limited by the length of the slot-like opening 42, parallel to the cuff 2 on the inside and in close contact with it, and has a locking projection 72 (Fig. 10) which, in the closed, (locked) state of the lock, engages behind the latch head 8 (Fig. 1 and 2).

The plate-shaped locking part 41 has a slot 44 (Fig. 10) for a pin 45 (Fig. 3 to 5), which extends orthogonally from the surface of the latch bolt tail 73 and is firmly connected to it. In the locking position of the lock (Fig. 1 and 2), the pin 45 is located on the inlet side 46 of the slot 44 of the plate-shaped locking part 41, while the locking pin 45 is in the unlocked state of the lock, e.g. when the door is open, in a position that is schematically indicated in Fig. 10 by the drawing of the pin 45.

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

In this position, the pin 45 lies behind a shoulder 47, while the locking projection 72 has moved away from the range of movement of the latch head 8 in the direction of the latch bolt 13. In the open position of the lock, the pin 43 is thus located on the opposite end section of the slot-like opening 42 from Figs. 1 and 2.

Furthermore, when the lock is in the open position, the pin 39 is in the position shown in Fig. 10, i.e. at the upper end of the slot 40, while when the lock is in the locked position, it has slid into the lower, expanded area of the slot 40.

If the latch bolt 13 is pushed into the lock case, the pin 45 slides past the shoulder 48 of the guide 44 until it enters the rear part 49 opposite the inlet side 46.

The locking mechanism 30 has a curved slot 50, which consists of three sections 51, 52 and 53, which merge seamlessly into one another and have the same width

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

which corresponds approximately to the diameter of the pin 45, the longitudinal axis of which runs orthogonal to the bolt tail of the latch bolt 13. The pin 45 engages in the slot 50 with play.

The length of the slotted part 51 corresponds approximately to the diameter of the pin 45, while the length of the slotted part 52 corresponds approximately to three to four times the diameter of the pin 45, which also applies to the length of the slotted part 53.

In the locking position of the lock, i.e. when the plate-shaped locking part 41 with its locking projection 72 engages behind the latch head 8, the pin 45 lies in the slot part 51 so that the latch bolt 13 cannot be pressed into the lock case. In this position of the parts, the pin 45 in the slot part 51 rests against the tumbler 30, the forces being introduced into the lock housing base 1 via the plate-shaped tumbler 30 and the axis 33.

In the unlocking position, the pin 45 lies in the slot part 53 and moves further and further as the latch bolt 13 is moved into the lock case.

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickelsbach 8, D- 4030 Ratingen 6

When the latch bolt 13 is completely pushed into the lock case, the pin 45 rests in the deepest part of the slot 53.

55 designates a spring which is mounted on a bushing 56 with a screw thread. The bushing 56 is firmly connected to the lock housing base 1. One spring leg 57 is supported on a bolt 59 which is firmly connected to the lock housing base 1 and the other spring leg 58 is supported on a bolt 60 which runs with its longitudinal axis orthogonal to the latch bolt tail 73 and is connected to it in one piece.

The reference number 61 designates a projection pin which serves as a stop for a locking lug of a cylinder. The projection pin 61 is also connected in one piece to the lock housing base 1.

In the embodiment according to Fig. 2, the same reference numerals have been used for parts with the same function.

This embodiment differs from the embodiment according to Fig. 1 in that the drive of the

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

The locking mechanism 30 can be operated via a motor 62. The motor 62 is designed as a linear motor, ζ. β. as an electric motor, and has a screw spindle and nut or a worm 63 that meshes with a suitably designed gear wheel 64, e.g. a worm wheel, to which a link 66 is rotatably coupled via an axis 65, which is mounted at its other end via an axis 67 on the lock housing base 1. In addition, a link 68 is connected to the axis 65, which is coupled via an axis 69 to a lever 70 that is connected to the nut lever 23 and the locking mechanism 30.

The reference numerals 74, 75, 76, 77 and 78 designate rosette holes with protective sleeves. The socket 56 can also be designed as a rosette hole with a protective sleeve. The dimensions and arrangement of these rosette holes correspond to the usual dimensions and arrangements, which may be specified by standardization.

Number 83 designates a trap guide pin.

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

The features described in the claims and in the description and evident from the drawing may be essential for the realization of the innovation both individually and in any combination.

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen bibliography

DE-OS 39 38 655 DE-OS 26 01 774

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

List of reference symbols

1 Lock case back 2 cuff 3 Cases 4 Spring element 5 Recess, longitudinal slot-shaped 6 trappings 7 Stop, housing-fixed 8th Trap head 9 depression 10 Circular bottom, convex 11 H It 12 Change lever 13 Latch bolt 14 Socket, housing-mounted 15 Eye 16 drilling 17 Head 18 Starting slope 19 20 Castle nut

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

21 Breakthrough, square 22 Nut lever 23 H 24 attack 25 Nut feather 26 Eye 27 Square 28 web 29 Socket connection lever 30 Locking, plate-shaped 31 Long hole 32 cone 33 axis 34 Long hole 35 ¹¹ , further 36 Additional trap 37 cone 38 Faceplate outside 39 cone, further 40 Scene slot 41 Locking part, plate-shaped 42 Opening, slot-like 43 Pen 44 Scenery

Patent Attorney Dipl.-lng. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

45 Pen 46 Inlet side 47 shoulder 48 49 Part 50 Scene slot 51 Part of the slot 50 52 (I Il Il 53 H Il Il 54 - 55 Feather 56 Rifle 57 Spring legs 58 tt 59 bolt 60 H 61 Mandrel 62 engine 63 Screw spindle, worm 64 Gear wheel, worm wheel 65 axis 66 Handlebar 67 axis 68 Handlebar

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6

69 axis 70 lever 71 Hole 72 Locking approach 73 Latch bolt tail 74 Rosette hole 75 M 76 ti 77 The 78 ■' 79 Coupling claw 80 Clutch shoulder 81 Swivel axis, housing-fixed 82 Recess, trapezoidal 83 Trap guide pin

Claims (8)

Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6 4966/43 09 April 1991 Wilhelm Dörrenhaus GmbH & Co KG Velberter Straße 123 D-5620 Velbert 1 Protection claims 1. Anti-panic door lock that can be operated by a key and/or a handle, with a change, tumbler, latch and deadbolt, which are arranged in a lock housing, with an additional latch arranged between the deadbolt and the latch, which, like the latch and the deadbolt, each protrudes from an opening in the faceplate against the restoring force of a spring element, the additional latch being guided in a long slot on the bottom of the lock housing and controlling an automatic locking mechanism for the latch that is also arranged in the lock housing, characterized in that Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6 —2— a) the plate-shaped additional latch (36) with a one-piece coupling claw (79) a coupling shoulder integrally connected to the latch bolt tail (73) (80) engages behind in a form-fitting manner, such that when the latch bolt (13) is pushed inwards, the additional latch (36) can be moved in the same direction and synchronously in the lock case; b) the additional latch (36) is designed to be the same thickness as the latch bolt tail (73) over the entire length and width, at least at its end section arranged in the lock case, such that the additional latch (36) and the latch bolt tail (73) on the one hand rest flat on the lock housing base (1), and on the other hand are delimited on the opposite side by walls which run in one plane; Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6 c) between the additional latch (36) and the latch bolt (13) at a short distance behind the faceplate (2) on the lock housing base (1) there is a pin (43) extending orthogonally to the lock housing base (1) which extends through a slot-like opening (42) of a plate-shaped locking part (41) which is limited by the length of the slot-like opening (42) and is arranged so as to be displaceable parallel to the inside of the faceplate (2) and thus orthogonal to the longitudinal axis of the latch (3) or the longitudinal axis of the latch bolt (13); d) the plate-shaped locking part (41) has a slotted slot (40) running at an acute angle to the longitudinal axis of the additional latch (36), into which a further pin (39) engages, which is integrally connected to the additional latch (36) and runs orthogonally to its surface; Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6 e) at a distance from the slot-like opening (42) and from the guide slot (40), a further guide (44) is arranged, which is open on one side via an inlet side (46) in the direction of the faceplate (2), and which has a shoulder (47) running parallel to the inside of the faceplate, against which a pin (45) connected in one piece to the latch bolt tail (73) and running orthogonally to the surface of the latch bolt tail (73) rests and thereby holds the automatic locking mechanism in a pre-tensioned position, while the pin (45) enters the inlet slot (46) when the latch (3) and latch bolt (13) are blocked and the further pin (39) of the additional latch (36) in the guide slot (40) assumes a lower position in the direction of the latch bolt (13); Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6 f) in the locking position, the plate-shaped locking part (41) engages behind the latch head (8) with an integrally connected, plate-shaped locking projection (72); g) the pin (45) of the latch bolt tail (73) is arranged in the locking position in a part (51) of a slot (50) of a plate-shaped tumbler (30) in the blocking position, this part (51) being directed with its longitudinal axis parallel or substantially parallel to the inside of the cuff (2), and curved parts (52, 53) adjoining this part (51), into which the pin (45) slides when the lock is unlocked; h) the plate-shaped tumbler (30) rests on the plate-shaped locking part (41) and also overlaps the latch bolt tail (73) and is fixed to the housing Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6 Swivel axis (81) is pivotally coupled. 2. Anti-panic door lock according to claim 1, characterized in that the additional latch (36) is made of one piece material as a continuous plate-shaped part, to which the coupling claw (79) is also made of one piece material and, for example, is of the same thickness as the rest of the additional latch (36). 3. Anti-panic door lock according to claim 1 or 2, characterized in that the plate-shaped locking part (41) is made of one piece material and is of the same thickness over its entire length and width. 4. Anti-panic door lock according to claim 1 or one of the following, characterized in that the tumbler (30) is plate-shaped and of the same thickness over its entire length and width and has an approximately trapezoidal recess (82) in its middle section for the arrangement of a rosette hole (78). Patent Attorney Dipl.-Ing. R. Beyer, Am Dickeisbach 8, D- 4030 Ratingen 6 5. Anti-panic door lock according to claim 1 or one of the following, characterized in that the lock nut (20) is coupled to the locking mechanism (30) via a nut connecting lever (29), the nut connecting lever (29) being coupled at both of its ends via pivot axes (32, 33) to a nut lever (23) or the locking mechanism (30). 6. Anti-panic door lock according to claim 1 or one of the following, characterized in that the lock nut (20) is coupled to a motor drive (62, 63) via a toggle lever joint arrangement. 7. Anti-panic door lock according to claim 6, characterized in that the motor drive (62, 63) is designed as a spindle drive and drives the toggle lever joint arrangement via a nut. 8. Anti-panic door lock according to claim 6, characterized in that the motor drive (62, 63) is designed as a linear motor which drives the toggle lever joint arrangement.