EP2880231A1

EP2880231A1 - Locking having a latch bolt having an auxiliary latch, a retaining element, and a slide

Info

Publication number: EP2880231A1
Application number: EP13758763.0A
Authority: EP
Inventors: Albertus Gerard TEN HAVE
Original assignee: Assa Abloy Sicherheitstechnik GmbH
Current assignee: Assa Abloy Sicherheitstechnik GmbH
Priority date: 2012-08-06
Filing date: 2013-08-06
Publication date: 2015-06-10
Anticipated expiration: 2033-08-06
Also published as: WO2014023749A2; PL2880233T3; WO2014023749A3; EP2880233B1; WO2014023750A1; EP2880231B1; EP2880233A2; ES2698956T3

Abstract

The invention relates to a lock for a preferably two-leaf door. The lock has a lock case having a lock mechanism supported therein. The lock mechanism comprises a latch bolt (2) and a slide (5), which is mechanically coupled to the latch bolt (2). The latch bolt (2) can assume three positions, specifically a first retracted position, a second extended position, and a third far extended position. In order to control the extension of the latch bolt (2) from the extended second position of the latch bolt to the far extended third position, the lock has a retaining element (4), which is movably supported in the lock case and which interacts with an auxiliary latch (3) and the slide (5). The retaining element (4) can be moved between a blocking position, in which the retaining element (4) protrudes into the movement path of the slide (5) and prevents movement of the latch bolt (2) from the extended second position to the far extended third position, and a non-blocking position, in which the retaining element (4) is outside the movement path of the slide (5) and permits the movement of the latch bolt (2) from the extended second position to the extended third position.

Description

Lock with a latch bolt with auxiliary latch, holding member and slide

The present invention relates to a lock for a door or a window, in particular a panic lock for use in escape and rescue routes. It is a self-locking lock.

The starting point is a state of the art of a lock with the features of the preamble of patent claim 1.

Such a lock with self-locking latch bolt is e.g. known from WO 02/066774 A1. The lock has a latch latch and an auxiliary latch. The latch bolt can take three different positions. In the first retracted position the latch bolt is completely in the

Retracted lock case. In the second extended position of the latch bolt is partially extended from the lock case. This second position is taken by the latch bolt with the door open. In the third extended position, the latch bolt is extended far out of the lock case. This position is taken by the latch bolt when the door is locked. The auxiliary latch serves to control the self-locking operation. at This lock is a bar lock from the second extended position to the third extended position only possible after both the latch bolt and the auxiliary latch were retracted into the lock case. This ensures that the self-locking can not be triggered by unintentional impressions of the auxiliary latch or the latch bolt. The lock mechanism is complex; it comprises a first lever pivotally mounted in the lock case and a second and third lever pivotally mounted on the first lever. It is the object of the present invention to provide a lock with latch bolt and auxiliary latch, which at high Fehlbedienungs- and

Tamper evident security is simple.

This object is achieved by the invention with the subject matter of patent claim 1.

This solution is a lock for a door or a window, in particular panic lock for use in escape and rescue routes. The lock has a lock case with a movably mounted in the lock case latch bolt. The latch bolt is movable between a retracted first position, in which the latch bolt completely in the

Lock case is retracted, an extended second position, in which the latch bolt is partially extended out of the lock case, and an extended third position, in the latch bolt far out of the

Lock case is extended.

In the lock case, a first spring is also mounted, which urges the latch bolt in the extended third position. And there is also an auxiliary trap stored in the lock case. The auxiliary trap is between a retracted Position in which the auxiliary latch is fully retracted into the lock case, and an extended position in which the auxiliary latch is extended from the lock case, movable. In the lock case, a second spring is mounted, which urges the auxiliary latch in the extended position. Furthermore, a movably mounted in the lock case slide is provided, which is mechanically coupled to the latch bolt.

It is essential that the lock has a movably mounted in the lock case retaining member which cooperates directly or indirectly with the auxiliary latch and / or the latch bolt and is movable between a blocking position in which the support member protrudes into the path of movement of the slider and so movement of the Fallen bolt prevents the extended second position in the extended third position, and a non-blocking position in which the holding member outside of the

Trajectory of the slider is located and so a movement of the

Trap bolt allowed from the extended second position to the extended third position.

This therefore means that in the solution according to the invention, a holding member is provided in the lock mechanism, which cooperates with the slider mechanically coupled to the latch bolt. Depending on the position of the holding member of the latch bolt is controlled. This embodiment with the holding member allows a structurally particularly simple construction of the castle while retaining the functionalities of the generic locks. The holding member, which cooperates with the slider mechanically coupled to the latch, ensures that the latch bolt does not extend with its door open in its far extended third position. The holding member can in different ways with the latch bolt and with the auxiliary trap be arranged cooperatively, for example

stored between latch bolt and auxiliary latch, so that is the

Holding member cooperates directly or indirectly with both the auxiliary latch and with the latch bolt. Alternatively, the holding member and the auxiliary trap can also be arranged so that the holding member acts on the auxiliary latch and the auxiliary latch interacts directly with the latch bolt. This means that the holding member cooperates in this case only directly with the auxiliary latch and not with the latch bolt. The inventively provided holding member, which cooperates with the slider, which is mechanically coupled to the latch bolt, thus creating a variety of

Arrangement possibilities of the components of the lock mechanism and thus allows particularly compact designs, which are the same high

Have functional reliability against incorrect operation of the latch bolt in the open position of the door as the known complicated structure

generic locks of the prior art.

The term holding member is understood to mean a component which

is preferably formed as a one-piece, in particular one-piece component; but the term should also be understood to mean those components which are each composed of several components.

In preferred embodiments, it can be provided that the holding member is mounted linearly movable. In preferred embodiments, it may be provided that the auxiliary latch and the holding member are coupled in such a way that when the auxiliary latch is moved into its extended position, the holding member is transferred into its position blocking the slide. In preferred embodiments, it may be provided that the auxiliary latch has a driver area for the holding member and the holding member has a corresponding counter area.

In preferred embodiments, it may be provided that the latch bolt and the retaining member are coupled such that when the latch bolt is moved into its retracted first position, the retaining member is transferred directly or indirectly into its non-blocking position.

In preferred embodiments, it may be provided that the latch bolt has a driver area for the holding member and the holding member has a corresponding counter area. In preferred embodiments, it may be provided that a third spring is provided, which urges the holding member in its non-blocking position.

In preferred embodiments, it may be provided that the third spring with its one end on the lock case and with its other end on

Supporting member is supported.

In preferred embodiments, it may be provided that the spring stiffness of the second spring is greater than the spring stiffness of the third spring.

In preferred embodiments, it may be provided that the latch bolt and the auxiliary latch are movably coupled such that upon movement of the latch bolt from its extended second position into its retracted first position the auxiliary trap is transferred to its retracted position by the latch bolt directly or indirectly.

In preferred embodiments, it may be provided that the latch bolt has a catch area for the auxiliary latch and the auxiliary latch has a corresponding counter area.

In preferred embodiments, it may be provided that the holding member between the latch bolt and the auxiliary latch is interposed and cooperates directly with both the latch bolt and with the auxiliary latch.

In preferred embodiments, it can be provided that the slider is mounted linearly movable. In preferred embodiments, it can be provided that the slider and the latch bolt are coupled in such a manner that, when the latch bolt moves from its extended second position to its extended third position, the slider is moved in the lock case. In preferred embodiments, it can be provided that the slider and the latch bolt are mechanically coupled via a slot slot and a sliding pin.

In preferred developments it can be provided that the guide pin is arranged on the latch bolt tail and the guide pin in the

associated sliding slot of the slider engages. In preferred developments may be provided alternatively or additionally,

that the link slot a first, essentially horizontal

having aligned portion and a second, obliquely oriented portion.

The lock according to the invention is shown in the following figures. in this connection

a first embodiment of the lock with the latch bolt in its second extended position, the left part of the figure shows the lock from the front and the right part of the figure shows the lock from behind;

the lock of the first embodiment, in which the latch bolt is retracted in pieces in the lock case interior, the left part of the figure shows the lock from the front and the right part of the figure shows the lock from behind;

the lock of the first embodiment in a position when striking the door frame, wherein the latch bolt is retracted even further towards Fig. 2v and Fig. 2h into the lock case interior, the left part of the figure shows the lock from the front and the right part of the figure shows the lock from behind; the lock of the first embodiment in an abutment position on a door frame, not shown, wherein the latch bolt is already partially extended into a not shown Fallenaufnahme the door frame, the left part of the figure shows the lock from the front and the right part of the figure the lock from behind; the lock of the first embodiment with the latch bolt in its third extended position, the left part of the figure shows the lock from the front and the right part of the figure shows the lock from behind;

the lock of the first embodiment in a position in which the latch bolt and the auxiliary latch are fully retracted into the lock case, the left part of the figure shows the lock from the front and the right part of the figure shows the lock from behind; a second embodiment of the lock with the latch bolt in its second position, the left part of the figure shows the lock from the front and the right part of the figure shows the lock from behind (Figure 1, respectively);

enlarged detail view of Figure 7, in perspective.

the lock of the second embodiment, wherein the

Fallen latch a piece is retracted into the lock case interior, the left part of the figure shows the lock from the front and the right part of the figure shows the lock from behind (Figure 2);

the lock of the second embodiment in a position in which the latch bolt and the auxiliary latch is fully retracted into the lock case, the left part of the figure shows the lock from the front and the right part of the figure from behind the lock (Figure 6 accordingly);

the lock of the second embodiment with the latch bolt in its third extended position (Figure 5, respectively);

The first embodiment (FIGS. 1-6):

The lock 1 has a lock case 1 k with a lock box cover 1 d, a lock case bottom 1 b and a lock plate 1 s. The castle has the following essential interacting components: a latch bolt 2 with Fallennegelschwanz 2s, an auxiliary latch 3 with

Hilffallenschwanz 3s, a holding member 4, arranged between

Bevel tail 1 s and Hilffallenschwanz 4s, and a slider 5. The slider 5 has a cam slot 5k, in the one on

Falling nails tail 2s arranged cam pin 2k engages. The holding member 4 cooperates with the trap nose tail 2s and the slider 5. At its other end, the holding member 4 cooperates with the auxiliary catch tail 3s. The lock also has a nut 6 with one on it

connected handle for manual operation by a user. Next, the lock on a lock cylinder with which the lock can be unlocked by means of a key.

The three positions of the latch bolt

The latch bolt 2 is mounted linearly movable in the lock case. Of the

Fallen bolt 2 can take three positions, a retracted first

Position (Figure 6), an extended second position (Figure 1) and a

extended third position (Fig. 5). In its retracted first position of the latch bolt 2 is retracted in the lock case 1. In the extended second position (FIG. 1) and also in the extended third position (FIG. 5), the latch bolt 2 is extended out of the lock case 1 so that the latch bolt 2 protrudes from an opening in the lock plate 1 s assigned to it. In the illustrated embodiment, it is provided that the latch bolt 2 is extended in the extended second position (Fig. 5) by 12 mm from the lock case 1 and that the latch bolt 2 in the further extended third position (Fig. 5) by 20 mm the lock case 1 is extended. The latch bolt 2 is by a spring 2f, which in the following Fallen latch spring is called, acted upon in the extended third position. A first end of the latch bolt spring 2f here is lock box fixed

supported; a second end of the latch bolt spring 2f is hereby supported on the latch bolt 2 itself. The latch bolt tail 2s has the guide pin 2k, which serves to cooperate with the slider 5. This guide pin 2k is aligned in the usual way of installing the lock 1 in the horizontal plane, perpendicular to the direction of movement of the latch bolt 2. Of the

Fallenriegelschwanz 2s further has an area 2m, the

Cooperation of the latch bolt 2 with the support member 4 is used. This

Range is referred to below as driver area 2m.

The auxiliary trap

The auxiliary latch 3 is linearly movable and substantially parallel to

Direction of movement of the latch bolt 2 stored in the lock case 1 k. In its retracted position, the auxiliary latch 3 is pulled into the lock case 1 k. In its extended position, the auxiliary latch 3 projects out of the lock case 1 k via an opening in the lock plate 1 s assigned to the auxiliary latch 3. The auxiliary latch 3 is acted upon in the extended position by a spring 3f, which is referred to below as the auxiliary latch spring. A first end of the auxiliary latch spring 3f here is supported lock box fixed; a second end of the auxiliary latch spring 3f is in this case supported on the auxiliary latch 3 itself. At the

Auxiliary catch tail 3s is provided a shoulder which can be brought into engagement with the retaining member 4 to be described later.

The slider

The slider 5 is mechanically coupled to the latch bolt 2. The coupling between slide 5 and latch bolt 2 via a link device consisting of a cam slot 5k on the slider and a cam pin 2k on the latch bolt. The slider 5 is linearly movably mounted in the lock case 1 k and in conventional installation of the lock 1 in the vertical

Direction movable. The link slot 2k has two slot sections, a first, substantially horizontally aligned transverse

Slit portion and an oblique inclined at approximately 45 ° to the horizontal slot portion which is vertically oriented upward. Here, the substantially horizontally oriented slot portion of the cam slot 5k is formed in Stulpfernen area of the slider 5; the slot portion of the cam slot 5k, which is inclined upwards to the horizontal, is formed in the near-end region of the slider 5.

The substantially horizontally oriented portion of the cam slot 5k is assigned to the extension of the latch bolt between 12 and 0 mm. In this area, the slider 5 remains in its upper position. The oblique section of the cam slot 5k is assigned to the extension area of the latch bolt between 12 and 20 mm. In this area, the slider 5 moves from its upper position in Figure 2 in its lower position in Figure 6. In the retracted first position of the latch bolt 2 is the guide pin 2k of the latch bolt tail 2s at Stulpfernen end of the horizontal slot portion of the slot slot 5k. Upon the conclusion of the latch bolt 2 from its retracted first position (FIG. 6) to its extended third position (FIG. 5), the guide pin 2k passes first through the transverse slot section and then penetrates into the oblique

Slot section of gate slot 5k. While the guide pin 2k passes through the oblique slot portion, the moving latch bolt 2 forces the slider 5 to move vertically downwards. In the extended third position of the latch bolt 2 is the guide pin 2k of the

Fallenriegelschwanzes 2s at Stulpnahen end of the inclined slot portion of the cam slot 5k. Furthermore, the slider 5 has a contact edge 5k for interaction with the retaining member 4 to be described later. The holding song

The support member 4 is linearly movable in the lock case 1 k stored. The holding member 4 can in this case occupy a blocking position, in which the holding member 4 projects into the path of movement of the slider 5. In this blocking position, the abutment edge of the slide 5 bears against the holding member 4, wherein the holding member 4 prevents the movement of the slider 5 down. In this blocking position, the holding member 4 holds the

Latch latch 2 in the extended second position (FIG. 1); the further extension of the latch bolt 2 into its extended third position (FIG. 5) is prevented by the abutment of the slider 5 on the holding member 4. This corresponds to the position in which the door leaf is open and does not rest against the door frame.

On the body of the holding member 4, an arm 4a is provided, which in the

Movement path of the latch bolt 2 protrudes, wherein the driving portion 2m of the latch bolt 2 in abutment with the arm of the support member 4 can be brought. When the latch bolt 2 is retracted into the lock case, the catch portion 2m of the latch bolt 2 comes into abutment with the arm 4a of FIG

Holding member 4, so that the holding member 4 taken from the latch bolt 2 and is moved parallel to the latch bolt 2. On the body of the support member 4, a driver portion 4m is also provided, to which the shoulder 3a of the auxiliary latch 3 can be brought into abutment. If the holding member 4 is taken from the latch bolt 2, the auxiliary latch 3 is also moved parallel to the latch bolt 2, characterized in that the region 4m of the support member 4 rests against the shoulder 3a of the auxiliary latch 3. This means that when pulling the latch bolt 2 in the

Lock case, the auxiliary latch 3 is also drawn into the lock case, the movement of the latch bolt 1 is transmitted via the support member 4 to the auxiliary latch 3.

The self-locking of the castle

Fig. 1 shows the state when the door is opened. When the door is open, the latch bolt 2 is in its extended second position and the auxiliary latch 3 is in its extended position. The shoulder of the auxiliary latch 3 in this case is applied to the holding member 4. The auxiliary latch spring 3f urges the auxiliary latch 3 in its extended position and the holding member 4 in the

blocking position. The holding member 4 protrudes into the path of movement of the slider 5 and is opposed to a downward movement of the slider 5. Characterized in that the slider is coupled with its link device 5k with the guide pin 2k of the latch bolt, a movement of the latch bolt 2 is prevented in its extended third position and held the latch bolt 1 in its extended second position. In Fig. 2, the door suggests before reaching the closed position with the latch bolt on the frame or on the strike plate of the inactive leaf. The latch bolt 2 is characterized in that the strike plate acts on the case slope, against the action of the latch bolt spring 2f inserted into the lock case 1 k. In this case, the slider 5 is slightly raised on the guide pin 5k of the latch bolt tail 1 s. As a result, the slide 5 is then no longer on the holding member 5. The interaction of the holding member 4 and the slider 5 is formed so that when retracting the latch bolt 2 in the closed position of the slider 5 moves a piece up and the support member 4 thereby comes free. The auxiliary trap 4 is extended. Due to the fact that the guide pin 2k is in abutment in the angular range of the guide slot, the slider 5 can not move down while the latch bolt 2 is retracted or extended.

Fig. 3 shows the door in a further closed position; the latch bolt is pushed further in through the frame. Here, the driver portion 2m of the latch bolt 2 comes into contact with the arm 4a of the support member 4, so that the support member 4 by the retraction movement of the latch bolt 2 in the lock case 1 k

taken along and moved parallel to the latch bolt 2. Here, the holding member 4 also hits the shoulder 3a on the auxiliary hook tail 3s. The auxiliary latch 3 is moved by the holding member 4, so that the auxiliary latch 3 is retracted counter to the action of the auxiliary latch spring 3 f in the lock case 1 k. When inserting the latch bolt 2 in the lock case 1 k is doing the

Holding member 4 taken, which in turn moves the auxiliary latch 3. This means that the insertion of the latch bolt 2 when striking the latch bolt 2 to the strike plate also causes an insertion of the auxiliary latch 3. This ensures that the auxiliary latch 3 does not hit the strike plate, whereby the auxiliary latch 3 is spared. The retraction position of the latch bolt 2 and the auxiliary latch 3 is determined by the seaming air. The

Retracting the latch bolt 2 can be done not only by hitting the strike plate, but also manually by pressing a handle by a user. Also in this case causes the retraction of the

Fallen bolt 2 a retraction of the auxiliary latch 3, characterized in that the support member 4 is moved by the latch bolt 2 and the auxiliary latch 3 is moved by the support member 4. If the latch bolt 2 is retracted manually, the latch bolt 2 and the auxiliary latch can also be completely retracted into the lock box, as shown in Fig. 6. Here is the auxiliary latch 3 in its retracted position, the latch bolt 2 in its retracted first position and the auxiliary latch 3 is in its extended position. The holding member 4 is not in the

blocking position.

Fig. 4 shows the position of the closed door, and shortly at the moment after the door has come in the closed position. In the closed position of the latch bolt 3, however, is no longer by the strike plate in his

retracted first position. The latch bolt 2 is moved out in Fig. 4 already a small piece in the strike plate. The slide 5 has already moved a corresponding piece down due to

Setting pin 2k in the slot 5k. However, the auxiliary latch 3 is held by the striking plate in its retracted position. The latch bolt 2 moves under the effect of

Fallen bolt spring 2f in the direction of its extended position. The holding member 4 is in its non-blocking position. When extending the latch bolt 2, the guide pin 2k of the latch bolt 2 first runs in the horizontal portion of the slot slot 5k in the slide 5 along. As soon as the guide pin 2k has reached the inclined section of the slot slot 5k during the extension movement, the extension movement of the latch bolt 2 forces a movement of the slider 5 downwards. Since the holding member 4 in the non- Blocking position, the movement of the slider 5 is not hindered by the support member 4. The latch bolt 2 now drives, driven by the latch bolt spring 2f, unhindered into its extended third position.

Here, the slider 5 moves down.

Fig. 6 shows the lock with the door completely closed. The latch bolt 2 is fully extended into the strike plate in 20mnn position. The auxiliary latch 3 is on the frame and protrudes according to the folding air from the

Lock case 1 k out. The slider 5 is moved over the scenery down.

Wrong operation safety device with door leaf in open position

It is shown below that when the door is open, a sole depression of the auxiliary latch 3, which can be done unintentionally by the user by hand, no provision of the latch bolt 2 is triggered in its extended third position. When the door is open, the latch bolt 2 are in its extended second position and the auxiliary latch 3 in its extended position. In a sole impressions of the auxiliary latch 3, the auxiliary latch 3 is spent against the action of the auxiliary latch spring 3f in its retracted position. In this case, the shoulder of the auxiliary latch 3 detaches from the support member 4. The support member 4, however, remains in its blocking position and prevents movement of the slider 5 in the downward direction and thus a provision of the latch bolt in the extended third position. If the auxiliary latch 3 is then released again, then the moves

Auxiliary latch 3 under the action of the auxiliary latch spring 3f in the extended position. In the extended position of the auxiliary latch 3, the shoulder of the auxiliary latch 3 comes again in contact with the holding member 4, which is still in the blocking position.

Even by a sole impressions of the latch bolt 2, which can be done inadvertently by the user by hand when the door is open, no provision of the latch bolt 2 is triggered in its extended third position. In a sole impressions of the latch bolt 2, the latch bolt 2 against the action of the latch bolt spring 2f from the

extended second position spent in the retracted first position. In this movement, the driver portion of the latch bolt 2 comes into contact with the support member 4 and moves this with. The support member 4 is in contact with the shoulder of the auxiliary latch 3 and moves the auxiliary latch 3 also with. This means that when only pressing the latch bolt 1, the auxiliary latch 3 is also drawn into the lock case 1 k. During the subsequent release of the latch bolt 2, the latch bolt 2 and the auxiliary latch 3 are moved in the direction of their extended position under the action of the latch bolt spring 2f and the auxiliary latch spring 3f. Here, the holding member 4, characterized in that the shoulder of the extending auxiliary latch 3 rests on the support member 4, again transferred to its blocking position. The latch bolt spring 3f and the auxiliary latch spring 3f are in this case matched to one another such that the

Help fall spring 3f the holding member is transferred to its blocking position before the latch bolt 1, driven by the latch bolt spring 1f, has reached its extended second position. This means that when the latch bolt 1 has reached its extended second position, the

Holding member 4 is already in its blocking position. The latch bolt 2 can then extend only to its extended second position. An inclusion of the latch bolt 2 in its extended third position is not possible because the support member 4 of the extending auxiliary latch 3 in the blocking position has been transferred and thereby a downward movement of the slider 5 and thus an exception the latch bolt 2 in his

extended third position prevented.

The second embodiment (FIGS. 7 to 10):

FIGS. 7 to 10 show a second embodiment of the lock. This second embodiment comprises the same components as the embodiment of Figures 1 to 6; however, the latch bolt 1, the auxiliary latch 3 and the support member 4 cooperate in a different manner in the second embodiment. In addition, in the second embodiment, a third spring 4f, hereinafter referred to as holding member spring 4f, is provided, which acts on the holding member 4 in the direction of its non-blocking position.

The immediate interaction of the latch bolt with the auxiliary latch

In the second embodiment, the latch bolt tail has a region 2m, which serves for the interaction of the latch bolt 2 with the auxiliary latch 3. The auxiliary trap 3 has a corresponding counter area 3m. The areas 2m and 3m can be seen in Figures 7, 8, 9 and 10 respectively in the left part of the figure. The latch bolt 2 in this case interacts with the auxiliary latch 3 such that upon movement of the latch bolt 1 from its extended second position in the direction of its retracted first position, the auxiliary latch 3 is moved in the direction of its retracted position. In Figure 8 in the left part of the figure, the area 2m of the latch bolt 2 is shown in abutment with the area 3m of the auxiliary latch. In contrast to the first embodiment of the lock, in the second embodiment of the lock, the latch bolt 1 interacts directly with the auxiliary latch 3.

The immediate interaction of the auxiliary trap with the holding member

The auxiliary latch 3 has on the auxiliary latch tail 3s on a surface which the

Cooperation with the holding member 4 is used. The auxiliary latch 3 in this case cooperates with the holding member 4 such that upon movement of the auxiliary latch 3 in the direction of its extended position, the holding member 4 is transferred to its blocking position. In this movement, the surface of the auxiliary latch 3 is in contact with the holding member 3. Driven by the auxiliary latch spring 3f is thus the holding member 4, against the action of the holding member spring 4f, transferred by the auxiliary latch 3 in its blocking position. The auxiliary latch spring 4f thus urges the auxiliary latch 4f in its extended position and the holding member 4 against the action of the holding member spring 4f in the blocking position. This means that the spring hardnesses of the auxiliary trap spring 3f and the holding member spring 4f must be coordinated with each other. The spring rate of the auxiliary latch spring 3f is to be selected larger than the spring stiffness of the holding member spring 4f.

Securing the extended second position of the latch bolt in the door in the open position.

When the door is open, the latch bolt 2 is in his

extended second position. Here, the latch bolt 2 by the

Latch bolt spring 2f acted upon in the extension direction. Since the latch bolt 2 is coupled to the slider via the guide pin 2k and the slide guide 5k, the force of the latch bolt spring 2f is transmitted to the slider 5. The slider 5 rests with its edge 5z on the holding member 4. The holding member 4 in this case prevents a downward movement of the slider 5 and holds the latch bolt 2 in its extended second position. The slider 5 is located at the door open with its contact edge 5z on the support member 4, so that the force of the latch bolt spring 2f acts on the support member 4. When open Doors act on the support member 4, both the force of the retaining member spring 4f and the force of the latch bolt 2f. In this case, the directions of these two forces are substantially perpendicular to each other. The spring hardness of the

Fallen bolt spring 2f and the retaining member spring 4f are chosen so that the force of the retaining member spring 4f is not sufficient to the between the

Holding member 4 and contact edge 5z occurring static friction forces

overcome. This means that when the slide 5z bears on the holding member 4, the holding member 4 is held in its blocking position against the action of the holding member spring 4f.

This means that when the door is open, the holding member 4 both in that the abutment edge of the slider 5 bears against the holding member, as well as in that the shoulder 3a of the auxiliary latch 3 rests on the holding member 4 is held in its blocking position.

The self-locking mechanism

The self-locking mechanism of the lock according to the second embodiment will be described as follows: When the door leaf is hit against the door frame, the latch bolt 2 becomes the lock case upon contact with the strike plate of the door frame

inserted. Here, the driver portion 2m of the latch bolt 2 comes into contact with the area 3m of the auxiliary latch 3. This system of the latch bolt 2 on the auxiliary latch 2 can be seen in Fig. 8 in the left part of the figure. Characterized in that the driver portion 2m of the latch bolt 2 rests in the area 3m of the auxiliary latch 3, the auxiliary latch 3 is taken in the further retraction of the latch bolt 2 in the lock case 1 k and parallel to the latch bolt. 2 emotional. This ensures that the auxiliary latch 3 does not hit the strike plate. The auxiliary trap 3 is thereby spared.

When inserting the latch bolt 2, the guide pin 2k also moves along the stülpfernen, substantially horizontal region of the

Even if this section of the slider 5

Sliding slot 5k is referred to as "substantially horizontal", the Kuliseenschlitz 5k in this area a slight slope, so that the slider 5 when inserting the latch bolt 2 by a height in

Mm range is raised. The contact edge 5z of the slider 5 is then no longer on the support member 4, when the latch bolt 2 is moved from its extended second position in the direction of its retracted first position. This means that, as soon as the latch bolt 2 is moved into the lock case, the movement of the support member 4 is then determined exclusively by the retaining member spring 4 f, since both the

Contact edge 5k of the slider 5 and the shoulder 3a of the auxiliary latch 3 are no longer in contact with the support member 5. The retaining member spring 4f then urges the retaining member 4 in its non-blocking position, while the latch bolt 2 enters the lock case.

The retraction of the latch bolt 2 in the lock case can be done not only by striking the latch bolt to the strike plate, but also manually by pressing a handle by a user, as shown in Fig. 8. Also in this case causes the retraction of the latch bolt 2 retracting the auxiliary latch 3 and the support member is, as the auxiliary latch is no longer applied to the support member, driven by the support member spring 4f transferred to the non-blocking position. Fig. 9 shows the lock according to the second embodiment with the

Fallen latch 2 in its retracted first position and the auxiliary latch 3 in its fully retracted position. The holding member is in its non-blocking position the slider 5. This stage in which the

Fallen bolt 3 and the auxiliary latch 3 are completely retracted into the lock case is obtained in practice only by operating the handle and corresponding maximum rotation of the nut 6. When striking the door leaf to the strike plate, however, the latch bolt 2 and the auxiliary latch 3 are not fully inserted into the lock case; in this case, both the latch bolt and the auxiliary latch protrude from the rebate air

Lock case.

Once the door is in the closed position, the latch bolt 2 is no longer held by the strike plate in its retracted first position. The latch bolt 2 moves under the action of the latch bolt spring 2f in the latch bolt 2 associated opening on the door frame or on

Active leaf into it. However, the auxiliary latch 3 is still held by the strike plate in its retracted position and is not in contact with the

Holding member 4. The holding member 4 is held by the holding member spring 4f in its non-blocking position. The latch bolt 2 now moves, driven by the latch bolt spring 2f, in the direction of its extended position. Since the latch bolt 2 on the guide pin 2k with the guide slot 5k of the

Slider 5 is coupled, the slider 5, as soon as the guide pin 2 k has reached the oblique branch of the guide slot 5 k, forcibly moved in the downward direction. Since the holding member 5 is in its non-blocking position, the slider 5 can move freely down and thus also the latch bolt 2 in its extended third position. The movement of the latch bolt 2 and the slider 5 ends when the guide pin 2k of the latch bolt 2 has reached the close to the end of the guide slot 5k. This situation is shown in FIG.

Wrong operation safety device with door leaf in open position

Also, the lock according to the second embodiment shown in Figures 7 to 10 is safe against triggering the

Self-locking mechanism by solely pressing the latch bolt 2 or the auxiliary latch 3, as will be described below. In a sole insertion of the latch bolt 2 in the lock case, as already described, the auxiliary latch 3 taken from the latch bolt 2 and retracted parallel to the latch bolt 1 in the lock case 1 k. The holding member 4 is in this case, driven by the holding member spring 4f, transferred to its non-blocking position. When subsequently releasing the

Fallen bolt 1, the latch bolt 2, driven by the latch bolt spring 1 f, urged in the direction of its extended second position. At the same time, the auxiliary trap spring 3f urges the auxiliary trap 3 in the direction of her

extended position. The auxiliary latch 3 then comes back into contact with the support member 4, wherein the auxiliary latch 3 when moving in its extended position, the retaining member is transferred to its blocking position. The latch bolt spring 1f, the auxiliary latch spring 3f and the retaining member spring 4f are in this case matched to one another such that the retaining member 4 has already reached its blocking position before the latch bolt 2 reaches its extended second position. In a sole insertion of the auxiliary latch 3 in the lock case of the self-locking mechanism is also not triggered. At a

sole insertion of the auxiliary latch 3 comes the auxiliary latch 3 out of contact with the support member 4. The latch bolt 2 is located with the door open in his second extended position. The holding member 4 remains in its blocking position, since the slider 5 with its contact edge 5z on

Holding member 4 is present. The holding member 4 is held in this by blocking friction forces acting between the support member 4 and the abutment edge 5z of the slider 5, in its blocking position. The force of the holding member spring 4f urging the holding member 4 to its non-blocking position is not

enough to overcome these static friction forces. This means that the holding member spring 4f is unable to urge the holding member 4 into its non-blocking position, as long as the slider 5 rests against the holding member 4 via its contact edge 5z. That is, the latch bolt 2 remains in its second extended position, even if the auxiliary latch is inserted with the door open in the lock case.

Comparison of the construction of first and second embodiment

The two embodiments of Figures 1 to 6 and 7 to 10 differ in that in the first embodiment, the holding member 4th

is switched between the latch bolt 2 and the Hifsfalle 3 and the Blockierlement 4 when retracting the latch bolt 2 is only indirectly taken from the latch bolt. In the second embodiment, the auxiliary latch 3 interacts directly with the latch bolt 2, so that the auxiliary latch 3 is taken along by the latch bolt 2 when retracting the latch bolt 2. Another difference is that in the second embodiment, the holding member 4 is acted upon by a spring 4f while the retaining member 4 in a non-blocking position, ie the slider 5 non-blocking position urges. In the first embodiment, no retaining member spring 4f is present, that is, the retaining member 4 is not acted upon by a spring. Instead, the holding member between the latch bolt 2 and the auxiliary latch 3 is connected. LIST OF REFERENCE NUMBERS

1 castle

1 s lock face

2 trap bars

2f latch bolt spring

2k scenery pin

2s trailing nails tail

3 auxiliary trap

3f auxiliary drop spring

3s helper tail

4 holding member

5 slides

5k slotted slot

5z contact edge of the slider

Claims

claims

Lock for a door or a window, in particular panic lock for use in escape and rescue routes, with a lock case with lock mechanism mounted therein, which has the following components and gesolgenden structure: a latch bolt (2) which is movably mounted in the lock case, wherein the latch bolt (2) is movable between a retracted first position, in which the latch bolt (2) completely in the

Lock case is retracted, an extended second position, in which the latch bolt (2) partially from the lock case

is extended, and an extended third position in which the latch bolt (2) is extended far out of the lock case, a first spring (2f), which urges the latch bolt (2) in the extended third position, an auxiliary latch (3), wherein the auxiliary latch (3) between a

retracted position, in which the auxiliary latch (3) completely in the

Lock case is retracted, and an extended position in which the auxiliary latch (3) is extended from the lock case, is movable, a second spring (3f), which urges the auxiliary latch (3) in the extended position, and a slide (5) , which is movably mounted in the lock case and mechanically coupled to the latch bolt (2), characterized

in that the lock has a holding member (4) movably mounted in the lock case, which cooperates directly or indirectly with the auxiliary catch (3) and is movable between a blocking position in which the holding member (4) projects into the movement path of the slide (5) and a movement of the latch bolt (2) of the

extended second position prevents in the extended third position, and a non-blocking position in which the

Holding member (4) located outside the path of movement of the slider (5) and the movement of the latch bolt (2) from the extended second position to the extended third position allowed. Lock according to claim 1,

characterized,

that the holding member (4) is mounted linearly movable.

Lock according to one of the preceding claims,

characterized,

in that the auxiliary latch (3) and the holding member (4) are moveably coupled in such a way that, when the auxiliary latch (3) moves into its extended position, the holding member (4) is transferred to its position blocking the slide (5).

Lock according to claim 3,

characterized,

the auxiliary latch (3) has a driver area (3a) for the holding member (4) and the holding member (4) has a corresponding counter area (4m).

Lock according to one of the preceding claims,

characterized,

in that the latch bolt (2) and the retaining member (4) are movably coupled in such a way that, when the latch bolt (2) moves into its retracted first position, the retaining member (4) is transferred directly or indirectly into its non-blocking position.

Lock according to claim 5,

characterized, the latch bolt (2) has a driver region (2m) for the retaining element (4) and the retaining element (4) has a corresponding counter region (4a).

Lock according to one of claims 1 to 4,

characterized,

a third spring (4f) is provided which urges the holding member (4) into its non-blocking position. 8. Lock according to claim 7,

characterized,

that the third spring (4f) is supported with its one end on the lock case and with its other end on the holding member (4).

Lock according to one of the claims 7 or 8,

characterized,

the spring hardness of the second spring (3f) is greater than the spring hardness of the third spring (4f). 10. Lock according to one of the preceding claims,

characterized,

in that the latch bolt (2) and the auxiliary latch (3) are moveably coupled in such a way that, on movement of the latch bolt (2) from its extended second position to its retracted first position, the auxiliary latch (2) is moved into its retracted position by the latch bolt (2). is transferred directly or indirectly. Lock according to claim 10,

characterized,

in that the latch bolt (2) has a driver area (2m) for the auxiliary latch (3) and the auxiliary latch (3) has a corresponding counter area (3m).

Lock according to claim 10,

characterized,

in that the holding member (4) is interposed between the latch bolt (2) and the auxiliary latch (3) and interacts directly with both the latch bolt (2) and the auxiliary latch (3).

Lock according to one of the preceding claims,

characterized,

that the slide (5) is mounted linearly movable.

Lock according to one of the preceding claims,

characterized,

in that the slide (5) and the latch bolt (2) are moveably coupled in such a way that during the movement of the latch bolt (2) from its

extended second position in its extended third position of the slide (5) is moved in the lock case.

Lock according to one of the preceding claims, characterized in that

in that the slider (5) and the latch bolt (2) are mechanically coupled via a slot (5k) and a cam pin (2k). Lock according to claim 15,

characterized,

in that the guide pin (2k) is arranged on the catch pin tail and the guide pin (2k) engages in the assigned slot slot (5k) of the slider (5).

Lock according to claim 15 or 16,

characterized,

in that the slotted slot (5k) has a first, substantially horizontally oriented section and a second, obliquely oriented section.