DE20212622U1 - Shot-bolt lock - Google Patents

Description

13.08.2002

Deadbolt lock

The present invention relates to a deadbolt lock according to the preamble of the main claim.

Such deadbolt locks are known, e.g. from DE-PS 29 14 372.

This well-known deadbolt lock is used to keep the passive leaf of double-leaf doors closed.

However, the specific use of this deadbolt lock in an escape door should not be a limitation of the invention to such uses.

Other deadbolt locks are known from DE-PS 31 42 959.

With this deadbolt lock, an authorized person must

The key must be turned in the profile cylinder so that a spring-loaded lock releases the corresponding deadbolt so that it can be retracted into the lock housing.

Another espagnolette lock, which is only suitable for double-leaf doors, is known from DE-PS 34 17 054.

With this deadbolt lock, the active leaf must first be opened in order to be able to operate the deadbolt lock from the rebate side. Operation can also be carried out without authorization.
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A deadbolt lock with deadbolt rods at the top and bottom must therefore be designed in such a way that, with a simple release function, it has lockable deadbolt rods which, in their blocking position, are secured against unauthorised manipulation from the outside, whereby the deadbolt lock should be usable for both single-leaf and double-leaf doors and should perform different functions by exchanging only a few individual parts.

The invention solves this fundamental problem with the features of the main claim.

A coupling element is therefore essential. It is located between the handle, which can be a door handle, for example, and the drive bolt rod that is to be operated by the handle, whereby the coupling element can be moved between two defined positions. In one position, there is an engaged connection between the handle and the relevant drive bolt rod, while in the other position of the coupling element, this connection does not exist.

The coupling element should only be moved via an authorized release, e.g. via a lockable slider that is only accessible from the inside of the door, a locking cylinder or the like, whereby the slider can be secured via an integrated locking cylinder or a separate lock.

In any case, however, the coupling element is moved between an engagement position and a disengagement position in order to create a geared connection between the handling

be and the relevant deadbolt rod or not.

If the coupling element is in the disengaged state, the relevant drive bolt rod cannot be operated using the handle. In addition, a drive bolt lock can be coupled to the coupling element, which in this disengaged state prohibits any manipulation of the drive bolt rods, even from the inside of the door, since the coupling element can only be moved with an authorized key.

When coupled, however, the drive bolt rod can be operated via the handle, whereby the other drive bolt rod is also operated via the counter-rotating gear, which couples the two drive bolt rods together.

There is therefore a permanent connection between the drive bolt rods via the counter-rotating gear, although the coupling element allows or prevents the gear connection between the handle and the directly operated drive bolt rod depending on its position.

The invention can be used for mortise locks for tubular frame doors, since it requires practically no additional space within the lock housing.

It can also be used in wooden doors or sheet steel doors.

The invention can also be applied to espagnolette locks that interact with so-called switch locks.
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Such switch locks place one of the drive bolt rods, usually the upper one, under a spring in the extension direction.

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the preload. If the drive bolt rods are then in the retracted position and the relevant door is closed, the force stored in the preloaded spring is released so that the relevant drive bolt rod extends when the door is closed and, via the counter-rotating gear, also moves the other drive bolt rod into its extended position.

This special function of the espagnolette lock can be implemented independently of the position of the coupling element, since the position of the coupling element is not important for this function.

Otherwise, the coupling element can of course also be coupled with a corresponding drive bolt lock, which in turn is spring-loaded and moves into its locking position when the drive bolt rods are extended, so that the drive bolt rods can no longer be manipulated from the outside.

However, the movable coupling element is of essential importance in any case, since the respective position of the coupling element is decisive for the possible actuation of the drive bolt rods by the handle, while independent of the position of the coupling element, automatic locking or locking functions in the retracted or extended state of the drive bolt rods can be easily integrated into the lock housing.

Examples of implementation are given for this purpose.
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For this purpose, the displacement path of the coupling element is expediently coupled with the displacement path of the drive bolt lock, which performs different functions depending on requirements and application.
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One possibility is a drive bolt lock that locks one of the drive bolt rods in the retracted state when the coupling element is disengaged.

Then the pair of deadbolts could not be extended even with the help of a switch lock.

For example, if it is a burglar-resistant door,

The deadbolt lock must be particularly effective when the door is extended.

position of the locking bars must be effective in order to reliably prevent manipulation from outside.

This requirement is coupled with a coupling element that is then in the disengaged state, so that the drive bolts cannot be retracted even via the handle.

There is a synchronous movement possibility between the drive bolt lock and the displaceable coupling element when the drive bolt lock and thus also the coupling element are permissible moved into their functionally opposite positions.

This means that if the coupling element is displaced within the permissible range, the coupling state between the coupling element and the drive bolt rod is restored while at the same time the drive bolt lock is disengaged and vice versa.

The deadbolt lock could then be operated again in the normal way using the handle, whereby automatic locking and locking of the deadbolt lock would be possible, particularly in conjunction with a switch lock and a spring-loaded deadbolt lock.

The displacement path of the coupling element is therefore used in particular to operate the drive bolt lock, which, as required, in the retracted state of the drive bolt

rods or in the extended state, manually or automatically.

Examples of implementation are given for this purpose.
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For this purpose, the deadbolt lock can be moved transversely to the direction of movement of the deadbolt rods.

This requirement can easily be met with a pivoting deadbolt lock, which interacts with a coupling element that is also pivotably mounted.

The coupling element is conveniently connected either to the push rod belonging to the relevant drive bolt rod or to the lock nut.

The coupling point must then be provided either on the lock nut or on the drive bolt rod or the associated push rod.

In the event that the coupling element is linked to the lock nut, a corresponding extension arm should be provided on the lock nut in order to be able to initiate the vertical movement in the pair of locking rods via the resulting torque.

In a preferred embodiment, the coupling element is displaced via the locking bit of the locking cylinder screwed into the lock housing, whereby the deadbolt lock can also be displaced at the same time as the coupling element via a connecting piece.

Since the two drive bolt rods are inevitably and constantly in engagement with each other via the counter-rotating gear, the counter-rotating gear also requires special attention.

For example, a gear transmission can be considered for this, which is acted upon by a rack on two opposite sides, each of which is connected to one of the two drive bolt rods. In this case, it is proposed to make one of the racks pivotable so that this rack is in the engaged or disengaged state. Alternatively, the coupling element can also be located between the rack and the push rod.
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Another embodiment provides for a two-armed bell crank pivotably mounted on the lock housing, one arm of which is connected to one locking bar and the other arm to the other locking bar.
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Despite the integrated coupling element, the espagnolette lock according to the invention does not require any additional space.

In order to achieve a compact design, it is additionally proposed to provide the two push rods within the lock housing with a thread at their ends pointing outwards towards the deadbolt rods for screwing on the deadbolt rods.

In order to compensate for misalignment, these threaded connections should be mounted with little movement within the push rods.

In the following, the invention is explained in more detail using exemplary embodiments.

Show it:

Fig.l shows a first embodiment of the invention,
unlocked, over handle evident,

Fig.la Detailed view of the interaction between
Coupling element and deadbolt lock with

8 Lock cylinder position,

Fig.2 the embodiment according to Fig.l with retracted drive bolt rods,

Fig.3 Embodiment of the invention with locking function in the retracted, uncoupled state,

Fig.4 the embodiment according to Fig.3 with locking in the extended state,

Fig.4a Detailed view of the deadbolt lock according to Fig.4,

Fig.5 Embodiment of the invention with drive rods that automatically lock in the extended state,

Fig.6 Embodiment according to Fig.5 with unlocked drive rods in the coupled state,

Fig.6a Detailed view of the interaction between coupling element, deadbolt lock and locking cylinder,

Fig.7a Detailed view of lower push rod, Fig.7b Detailed view of coupling element, Fig.7c Coupling element in side view, Fig.7d Detailed view of connecting piece, Fig.7e Detailed view of reversing lever, Fig.7f Detailed view of lock nut, Fig.7g Lock nut in front view, Fig.7h Detailed view of push rod, Fig.8a Upper push rod in front view, Fig.8b Upper push rod in side view, Fig.8c Receptacle for threaded bush, Fig.8d Detailed view of threaded bush, side Fig.8e Detailed view of threaded bush, front, Fig.8f Side view of the switching piece,

Fig.8g Front view of the contact piece with drive bolt lock,

Fig.8h Detail view of locking mechanism, Fig.8i Side view of locking mechanism

Unless otherwise stated below, the following description always applies to all figures.
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The figures show a deadbolt lock 1. Such a deadbolt lock 1 has a lock housing 2. The lock housing 2 has a lock plate 3 on which the entire inner workings of the deadbolt lock 1 are mounted in a fixed position. The lock plate 3 is closed by the lock cover (not shown).

The faceplate 4 is used to attach the deadbolt lock 1 to the door. A lower deadbolt bar 7 and an upper deadbolt bar 8 emerge from vertically opposite exit sides 5,6.

The drive bolt rods 7,8 are screwed into an upper threaded bushing 36 and a lower threaded bushing 37, respectively, which are each seated with slight movement on the lower push rod 9 and the upper push rod 10.

The lower push rod 9 and the upper push rod 10 are coupled to each other via the counter-rotating gear 11 in the sense of opposite movements.

Here, the counter-rotating gear 11 consists of a stationary bell crank 29, which has a longitudinal slot at each of its ends.
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This longitudinal slot is in engagement with a driver 30 or 31 attached to the respective push rod.

The stationary lever 29 is mounted on a pin attached to the lock plate 3, which also serves as a vertical guide 35 for the lower push rod 9. A further

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The further vertical guide 34 is also fixed in place in the lock plate at the lower end of the lower push rod 9.

Analogously, the upper push rod 10 is guided in the vertical direction by two upper push rod guides 32, 33 which are fixedly mounted on the lock plate 2, so that the lower push rod 9 and the upper push rod 10 can each only carry out vertical movements in order to be able to bring the drive bolt rods 7 and 8 into the extended or retracted state.

In addition, a handle 12 is provided, which can consist of a door handle, for example, and is inserted into the square recess of a lock nut 13 mounted on the lock plate 2.

To operate the deadbolt lock 1 via the handle 12, a geared connection between the handle 12 and one of the deadbolt rods is used. According to the invention, this geared connection is made via the coupling element 14, which is designed here as a metal part oriented practically parallel to the lower push rod 9 and is pivotably seated at one end on a corresponding extension arm of the lock nut 13, while at its other end it has a coupling pin 28, which engages or not as required in a corresponding coupling pocket 27 of the lower push rod 9.

It can be seen that in the position of the coupling element 14 shown in Fig. 1, the coupling mandrel 28 is retracted into the coupling pocket 27, so that when the lock nut 13 is rotated, the pair of push rods 9, 10 and thus also the pair of driving bolt rods 7, 8 can be retracted into the lock housing 2.

This case is shown in Fig.2.

In this case, the lock nut 13 is rotated to such an extent that it has moved with its pivot stop 44 in front of a stationary pivot stop which is located on the lock cover (not shown), while it lies with a cantilever arm in front of the pivot stop 45 which is a component of the lock plate 3.

In this position, the deadbolt rods 7,8 are in their retracted state.

However, if the coupling element 14 is moved from the coupling position shown in Figures 1 and 2 to the other defined position according to Figure 3, the coupling mandrel 28 moves out of the coupling pocket 27. The gear connection between the handle and the lower drive bolt rod 7 is thus canceled.

Operating handle 2 therefore has no effect.

Therefore, the coupling element, which can be moved between its two defined end positions, creates either an engaged connection between the handle and the relevant drive bolt rod or no connection, so that actuation of the lock nut 13 then remains ineffective.

The lock nut 13 is in turn under the influence of a pre-tensioned spring 16, which is tensioned via a push rod 15 when the lock nut 13 is rotated. For this purpose, the push rod 15 is acted upon at one end by a corresponding extension arm of the lock nut, while the pusher height spring 16 is tied between the push rod and the lock plate 2.

The locking point of the handle holding spring 16 on the lock plate also serves as a tappet guide 17, so that after the handle 12 is released, the lock nut 13 automatically returns to its starting position as shown in Fig. 1.

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In addition, the figures show a drive bolt lock 18, which performs different functions depending on the position of the coupling element 14.

In the embodiments of Figures 1 to 3, the drive bolt lock has a nose 23 which, depending on the vertical position of the lower drive bolt rod 7, penetrates into a corresponding recess 24.

If the coupling element 14 is moved into its disengaged position, which is done here via the locking cylinder 21, the nose 23 of the drive bolt lock 18 will move into a corresponding recess 24 of the lower push rod 9.

This case is particularly shown in Fig.3.

Here, the locking rods are in their retracted position and are prevented from extending by the locking connection which is created as a result of the engagement between the nose 23 and the recess 24.

The embodiment according to Figures 1, la and 2 is suitable

Particularly suitable for use in conjunction with a switch lock for automatic locking of the door, as the retracted locking bars are held in place by the switch lock when the door is open.

If the switch lock hits the door frame when closing the door, the pre-tension spring of the switch lock is released and the upper locking bar can move from the retracted position to the extended position.

The upper deadbolt rod, which is released via the switch lock, takes the lower deadbolt rod with it and the door is locked.

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The decisive factor for this function is the combination of the deadbolt lock according to Figures 1 to 2 in conjunction with a switch lock, which is known, for example, from EP-PS 0 348 971.

In addition, the switch lock function is made possible by the fact that the lower push rod 9 cannot be brought into engagement with the drive bolt lock 18 when the drive bolt rods 7,8 are in the retracted position.

In this way, the drive bolts 7,8 are completely freely movable after the switch lock has been triggered and can move into the corresponding openings in the door frame.

In contrast, Fig.4 shows a further development in which the displaceable coupling element 14 is connected to a likewise displaceable drive bolt lock 18, which also follows the displacement path of the coupling element 14 and only locks the lower drive bolt rod 7 in its retracted position when the connection is disengaged according to Fig.4.

If, in this embodiment, the coupling element 14 is disengaged, the lower push rod 9 is blocked by the engagement between the nose 23 of the drive bolt lock 18 and the associated recess 25, so that an automatic closing function of the drive bolt rods is no longer possible.

In contrast to the embodiment according to Figures 1 to 2, this embodiment cannot be used for fire doors.

The reason for this is that the lower push rod 9 is equipped with two recesses 24,25, which, depending on the position of the drive bolt rods, are either in the

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driven state or in the retracted state with the nose 23 of the drive bolt lock 18 when the connection between coupling element 14 and associated drive bolt rod 7 is disengaged.
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With this deadbolt lock, the retracted deadbolt rod can no longer be automatically extended by spring force, even if a switch lock is present.

To release the lower push rod 9, the locking bit 22 must be turned clockwise in the locking cylinder 21 using an authorized key.

In this case, the locking bit 22 enters an associated recess 48 in the drive bolt lock 18 and displaces it in such a way that the nose 23 disengages from the lower recess 25, whereby at the same time the coupling element 14 with its coupling mandrel 28 moves into the coupling pocket 27 of the lower push rod 9.

Since in this embodiment the lower push rod 9 is equipped with an upper recess 24 and a lower recess 25, which can each engage with the nose 23 of the drive bolt lock 18 depending on the position of the lower drive bolt rod 7, this drive bolt lock can be blocked both in the retracted state (see Fig.3) and in the extended state (see Fig.4).

In the extended state according to Fig.4, the nose 23 is located in the upper recess 24, in which the locking bit 22 of the locking cylinder 21 has been rotated accordingly.

Via the blocked lower push rod 9, the upper push rod 10 is also blocked in the extended state due to the counter-rotating gear 11, so that this deadbolt lock

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offers increased security against attempted break-ins and other manipulations.

Fig.4a shows further details.
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A locking device 38 is provided which is movable in the vertical direction and is movably mounted on two vertical guide bolts 39, 40 (see Fig. 1).

The tumbler 38 is pre-tensioned towards the locking cylinder 21 via a locking spring 41 and can be lifted by the latter via the locking bit 22.

A U-shaped slot 42 is recessed in the tumbler 38, which engages with the tour pin 43, wherein the tour pin 43 is located on the switching piece 20.

The tour pin 43 also serves as a coupling point of the connecting piece 19 to the switching piece 20, on which the drive bolt lock 18 is also located, and, depending on the position of the coupling element 14, engages either in one or the other leg of the U-shaped slot 42 of the tumbler 38.

This ensures that the connecting piece 19 only

can take two defined end positions, which can be

gear connection to the coupling element 14 can mean either the engaged or disengaged state.

In contrast, Fig. 5 shows a drive bolt lock whose drive bolt lock 18 is under the load of a pre-tensioned leg spring 47 in the direction of the locking position in which the nose 23 is in engagement with a recess 24.

This drive bolt lock is advantageously combined with a switch lock and with a spring (not shown) which pushes the upper drive bolt rod 8 into the extension position.

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When the door leaf reaches the closed position, the switch lock releases the upper drive bolt rod so that it automatically extends into the locking position. In this regard, reference is made to the state of the art.

At the same time, the lower push rod 9 is moved into its extended position via the counter-rotating gear 11.

In this case, the drive bolt lock 18 is under the preload of the leg spring 47, which pivots the drive bolt lock 18, which is a component of the switching piece 20, to such an extent that the nose 23 then moves into the corresponding locking pocket 24 of the lower push rod 9 and locks there.

This means that the deadbolt lock is protected against manipulation when the deadbolt rods are extended and can only be opened again by operating the locking cylinder 21 using an authorized key.

The locking process takes place automatically as a result of the pre-tensioning of the drive bolt lock 18 by the leg spring 47 with extending drive bolt rods.

Fig.6 shows the drive bolt lock according to Fig.5, in which the drive bolt lock 18 with its nose 23 has been moved out of the recess 24 by the rotation of the locking bit 22 of the locking cylinder 21.

In this state, the lower push rod 9 is no longer blocked, so that when the coupling element 14 is simultaneously engaged, the lower push rod can be lifted over the lock nut 13.

The upper push rod is also retracted via the counter-rotating gear 11, which is also effective, so that the door can be opened.

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However, this process is only possible with an authorized key, since the locking bit 22 must act on the deadbolt lock 18 accordingly.

In addition, Fig. 6a shows the engagement between the locking bit 22, recess 48 in the switching piece 20, connecting piece 19 and coupling element 14, which is crucial for this function.

The geometric arrangement is selected such that the spring-loaded drive bolt lock 18 moves out of the corresponding recess 24 in the lower push rod 9 with its nose 23 when the locking bit 22 is rotated, while at the same time the coupling element 14 with the coupling pin 28 moves into the coupling pocket 27, which is a component of the lower switching rod 9.

In this position, the deadbolt lock 1 can be operated by turning the lock nut 13 so that the deadbolt rods 7,8 can be pulled in.

For the sake of completeness, it should be said that the

Locking cylinder 21 is advantageously designed as a profile cylinder, which can be fastened in the housing of the deadbolt lock 1 via a corresponding cylinder fastening screw 46.

This espagnolette lock can be used on single-leaf, double-leaf and also two-way doors.

This is a double-leaf door, with each leaf opening in a different direction.

Such doors are used, for example, to direct the flow of visitors, who, for example in right-hand traffic,

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the right side and just push the respective door leaf open.

In order for this function to be possible, both door leaves must be able to be opened independently of each other. In order for this requirement to be met, there must be no connection between the two door leaves.

However, a tamper-proof locking mechanism must be present. This is fulfilled by the present deadbolt lock.

If the door does not have to meet fire protection requirements, the deadbolts 7,8 could also be locked in the retracted position by using a key, so that the user only needs to push the door leaf open without having to operate the handle.

However, if the deadbolt lock is to be used in areas with special security requirements, the deadbolt bars must be automatically locked after the door is closed.

This lock could then only be opened with an authorized key.

By replacing only a few components, this espagnolette lock can therefore be used in locks with or without fire protection requirements, with or without a lower espagnolette bar and with manual or automatic locking of the espagnolette bars.

In addition, Figures 7a to 7g show further details. Figure 7a shows the lower push rod 9 with its longitudinal recesses at the ends, which are referred to as lower push rod guides 34, 35.

In the embodiment shown, the lower push rod has an upper recess 24 for locking in the extended position and a lower recess 25 for locking in the retracted position.
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It can be seen that the coupling element 14 according to Figures 7b, 1c with a coupling mandrel 28 can be moved into an associated coupling pocket 27, which is part of the lower push rod 9.
10

The coupling element 14 is driven by a fixed

the coupling element 14 connected bolt 49, on which the connecting piece 19 is mounted, wherein the connecting piece 19 is mounted at this end with a longitudinal slot on the bolt 49 in order to compensate for tolerances.

The connecting piece 19 is mounted at the other end on the tour pin 43, which is part of the switching piece 20 with the drive bolt lock 18, so that the connecting piece 19 basically follows the movement of the drive bolt lock 18 and in this way also moves the coupling element 14 back and forth.

The reversing lever 29 is mounted in a fixed position centrally on the lock plate 3 and has elongated slots at its ends which interact with corresponding bolts on the lower push rod 9 or the upper push rod 10.

In this way, the vertical movements of the push rods 9, 10 are forcibly coupled to one another via the back and forth pivoting movement of the bell crank 29, so that the push rods can also be locked in a coupled manner depending on the locking state of the lower push rod 9.

Depending on the number and arrangement of the recesses 24 and 25, the lower push rod 9 is locked only in the extended state, only in the retracted state

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state or in both the extended and retracted state.

The lock nut 13 has bearing projections 50, 51 on two opposite end faces, with which it is mounted on the lock plate 2 and the lock cover (not shown).

The coupling element 14 is pivotably mounted at the coupling articulation point 26 via a bolt located there in the manner of a joint in the plane of the drive bolt lock transversely to the direction of retraction and extension of the drive bolt rods, whereby this joint end of the coupling element 14 must necessarily follow the rotary movement of the lock nut 13.

Depending on the respective position of the opposite end of the coupling element 14, the lower drive bolt rod is coupled or uncoupled.

In addition, the pivot stop 44 in the form of a cantilevered arm on the lock nut 13 in conjunction with a housing-fixed stop 45 ensures that the lock nut can only be rotated over a limited pivot angle.

Fig.8a shows the upper push rod 10 in detail.

This is also guided along two parallel guides in a vertical direction.

For this purpose, the upper push rod guide 32 consists of a slot which is in constant engagement with a corresponding pin of the lock housing, while a stationary pin 33 engages in a corresponding longitudinal recess of the lock plate 3.

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The driver 31 is also designed as a bolt and is in constant engagement with the longitudinal slot of the reversing lever 29 facing it.

In addition, a sheet with a T-shaped recess is riveted to both the upper push rod 10 and the lower push rod 9, which has a distance to the respective push rod 9,10, so that a threaded bushing 36,37 can be inserted into the space between the sheet 2 and the respective push rod 9,10, which is slightly movable within the recess.

In this way, the drive bolt rods can be screwed into the threaded bushings 36,37. Nevertheless, a slight fit clearance remains to compensate for inaccuracies.

Figures 8f to g show the contact piece 20 with drive lock 18 .

The drive bolt lock 18 is part of the switching piece 20 shown there, which is pivotally mounted on the lock plate 3.

This is done by the eye 54, which interacts with a pin fixed to the housing.

The pin used here is the lower vertical guide bolt 40, on which the locking mechanism 38, if present, is also mounted.

The tumbler 38, in turn, is movably mounted on two vertically extending slots 55, 56 and has a rigidly connected bolt 57 facing the lock plate 3, which serves to support the leg spring 41, which is supported with its other end on the upper vertical guide bolt 39.

In addition, the tumbler 38 has a recess in the form of a U-shaped slot 42 at its lower end, which serves to fix the tour pin 43, on which the connecting piece 19 is also mounted.

13.08.2002

Reference list

1 deadbolt lock

2 lock housing 3 lock plate

4 Faceplate

5 Exit side

6 opposite exit side

7 lower deadbolt rod 8 upper deadbolt rod

9 lower push rod

10 upper push rod

11 Counter-rotating gear

12 Handle
13 Lock nut

14 Coupling element

15 Pushrod

16 Push button holding spring

17 Tappet guide

18 Deadbolt lock

19 Connector

20 Switch piece

21 Locking cylinder

22 Locking bit 23 Nose

24 Recess, top

25 Recess, bottom

26 Coupling connection point

27 Clutch bag 28 Clutch mandrel

29 Steering lever1

3 0 Driver, lower push rod

OS·

31 Driver, upper push rod

32 upper push rod guide

33 upper push rod guide

34 lower push rod guide 35 lower push rod guide

36 upper threaded bushing

37 lower threaded bushing

38 Locking

39 Vertical guide bolt, top 40 Vertical guide bolt, bottom

41 Locking spring for 38

42 U-shaped slot

43 Tour pen

44 Swivel stop, lock nut

45 Swivel stop, lock housing

46 Cylinder fixing screw

47 Leg spring for 18

48 Recess (18)

49 bolts

50 bearing projection

51 Bearing projection

52 Sheet metal

54 Eye on 20

55 Vertical slot of 38 56 Vertical slot of 38

57 bolts

Claims (19)

1. Drive bolt lock ( 1 ) with drive bolt rods ( 7 , 8 ) emerging from opposite sides (5, 6) of the lock housing ( 2 ), which can be extended and retracted by push rods ( 9 , 10 ) arranged inside the lock housing ( 2 ), wherein the push rods ( 9 , 10 ) are coupled to one another via a counter-rotating gear ( 11 ) in the sense of mutually opposing movements and wherein a handle ( 12 ) is provided which is geared to one of the drive bolt rods ( 7 ) and serves to actuate the push rods ( 9 , 10 ) in the sense of an extension or retraction movement into or out of the lock housing ( 2 ), characterized in that 1. 1.0 between the handle ( 12 ) and the drive bolt rod ( 7 ) to be actuated by the handle ( 12 ) a coupling element ( 14 ) is provided which can be displaced between two defined positions in such a way that 2. 1.1 in one position a coupled connection between the handle ( 12 ) and this drive bolt rod ( 7 ) and 3. 1.2 there is no connection in the other position. 2. Drive bolt lock ( 1 ) according to claim 1, characterized in that the displaceable coupling element ( 14 ) is connected to a likewise displaceable drive bolt lock ( 18 ) which also follows the displacement path of the coupling element ( 14 ) and only locks the drive bolt rod ( 7 ) in its current position when the connection between the coupling element ( 14 ) and the drive bolt rod ( 7 ) is disengaged. 3. Deadbolt lock ( 1 ) according to claim 2, characterized in that the deadbolt lock ( 18 ) is only effective when the deadbolt rod ( 7 , 8 ) is retracted. 4. Deadbolt lock ( 1 ) according to claim 2, characterized in that the deadbolt lock ( 18 ) is only effective when the deadbolt rod ( 7 , 8 ) is extended. 5. Deadbolt lock ( 1 ) according to claim 2, characterized in that the deadbolt lock ( 18 ) is under spring preload ( 47 ) in the direction of its locking position and is only effective when the deadbolt rods ( 7 , 8 ) are extended. 6. Drive bolt lock ( 1 ) according to claim 2, characterized in that the drive bolt lock ( 18 ) is effective both when the drive bolt rods ( 7 , 8 ) are retracted and when they are extended, at least when the coupling element ( 14 ) is disengaged. 7. Drive bolt lock ( 1 ) according to one of claims 2 to 6, characterized in that the locking function between drive bolt rod ( 7 ) and drive bolt lock ( 18 ) is formed by the pairing of a recess ( 24 , 25 ) and an associated nose ( 23 ) on drive bolt rod and drive bolt lock ( 18 ), which are movable relative to one another transversely to the movement of the drive bolt rods ( 7 , 8 ), wherein in the locking position the nose ( 23 ) is retracted into the recess ( 24 , 25 ). 8. Deadbolt lock ( 1 ) according to one of claims 1 to 7, characterized in that at least one of the two deadbolt rods ( 7 , 8 ) in its retracted position is under the force of a spring pre-tensioned in the extension direction and cooperates with a switch lock which releases the spring from its pre-tensioned position in the closing case. 9. Deadbolt lock ( 1 ) according to one of claims 1 to 8, characterized in that the handle ( 12 ) is connected in a rotationally fixed manner to a lock nut ( 13 ) which is mounted in the lock housing ( 2 ) so as to be rotatable back and forth, and in that the coupling element ( 14 ) establishes the coupled or uncoupled connection between the lock nut ( 13 ) and the deadbolt rod ( 7 ) to be actuated via the lock nut ( 13 ). 10. Deadbolt lock ( 1 ) according to claim 9, characterized in that the coupling element ( 14 ) is displaceably hinged to the push rod ( 9 ) belonging to one of the deadbolt rods ( 7 , 8 ) and can be coupled to the lock nut ( 13 ). 11. Deadbolt lock ( 1 ) according to claim 9, characterized in that the coupling element ( 14 ) is displaceably hinged to the lock nut ( 13 ) and can be coupled to the deadbolt rod ( 7 ) or the associated push rod ( 9 ). 12. Deadbolt lock ( 1 ) according to claim 11, characterized in that the coupling element ( 14 ) is articulated on a cantilever arm of the lock nut ( 13 ). 13. Deadbolt lock ( 1 ) according to one of claims 9 to 12, characterized in that the coupling element ( 14 ) is pivotally mounted on the lock nut ( 13 ) or deadbolt rod ( 7 ) or associated push rod ( 9 ) and can be coupled or uncoupled via a pairing of projection ( 28 ) and associated recess ( 27 ) on the deadbolt rod ( 7 ) or associated push rod ( 9 ) or lock nut ( 13 ). 14. Deadbolt lock ( 1 ) according to one of claims 1 to 13, characterized in that a receiving device for a locking cylinder ( 21 ) is provided in the lock housing ( 2 ) and that the coupling element ( 14 ) can be displaced upon actuation of the locking cylinder ( 21 ) via the rotary movement of the locking bit ( 22 ). 15. Deadbolt lock ( 1 ) according to claim 14 in conjunction with the features of claim 2, characterized in that the locking bit ( 22 ) acts indirectly on the coupling element ( 14 ) via the deadbolt lock ( 18 ). 16. Deadbolt lock ( 1 ) according to one of claims 1 to 15, characterized in that the counter-rotating gear ( 11 ) is formed by a gear wheel, on the two opposite sides of which a rack engages, which is connected to a respective deadbolt rod ( 7 , 8 ), and that the coupling element ( 14 ) establishes or breaks the connection between the handle ( 12 ) and the gear wheel or between the handle ( 12 ) and the rack. 17. Deadbolt lock ( 1 ) according to one of claims 1 to 15, characterized in that the counter-rotating gear ( 11 ) is formed by a two-armed deflection lever ( 29 ) pivotably mounted on the lock housing ( 2 ), which is connected with one arm to one deadbolt rod ( 7 ) and with the other arm to the other deadbolt rod ( 8 ). 18. Deadbolt lock ( 1 ) according to one of claims 1 to 17, characterized in that each push rod ( 9 , 10 ) is provided at its end pointing out of the lock housing ( 2 ) with a thread for screwing on a deadbolt rod ( 7 , 8 ). 19. Deadbolt lock ( 1 ) according to claim 18, characterized in that the push rods ( 9 , 10 ) each carry a threaded bushing ( 36 , 37 ) which is movably but non-rotatably mounted on the push rod ( 9 , 10 ).