EP3258038B1 - Door fitting - Google Patents

Description

The present invention relates to a door fitting with a coupling, via which an external handle, such as in particular an outside handle or the like, can be decoupled from a lock mechanism assigned to the door and, in particular, can be coupled to the lock mechanism in combination with an access control system or the like.

With such a door fitting, the coupling between the outside handle and the lock mechanism is closed, for example, when an access control system or the like signals that an access authorization is present. Otherwise the outside handle will disengage from the lock mechanism so that the door cannot be opened from the outside. On the other hand, the door is accessible from the inside.

In the previously known door fittings of the type mentioned, a spring is tensioned when an access authorization is present by means of a motor. As soon as the outside handle assumes its starting position, this pushes a connecting element between the two nut parts of a split lock nut and thus creates a positive connection between the two nut parts. If the spring is no longer pre-tensioned and the nut connected to the outside handle returns to its end position, the connecting element is removed again from the area between the two nut parts. If the outside handle is actuated before the authorization is granted and recognized by the reader concerned, the motor pretensions the spring. As soon as the outside handle has returned to its starting position, it is engaged so that the door can then be accessed from the outside.

The EP 2 466 043 A1 discloses a coupling device for an external handle on a rig. The device comprises a rotatable element for translatory displacement of a coupling element, the rotatable element having four permanent magnet poles.

The US 5 884 515 A shows an electrical coupling system for secure locking. The coupling system contains one or more magnets which are arranged in a hub of a mortise lock.

The coupling of the known door fittings requires a relatively large amount of installation space. Since a spring element is required, which must be pretensioned in order to pretension the clutch when the outside handle is actuated before a recognized access authorization, the known door fittings are also relatively complex and relatively cumbersome to handle. In addition, the pretensioning of the spring element by the electric motor or electric actuator, which is generally operated with a battery or a rechargeable battery, requires a relatively large amount of electrical energy, which requires a correspondingly more frequent change or a correspondingly more frequent charging of the rechargeable battery.

The invention has for its object to provide a door fitting of the type mentioned, in which the disadvantages mentioned above are eliminated. In doing so, the coupling should be kept as compact and smooth as possible and the power consumption should be reduced, in particular simpler and faster coupling and uncoupling and a correspondingly more user-friendly handling.

According to the invention the object is achieved by a door fitting with the features of claim 1. Preferred embodiments of the door fitting according to the invention result from the subclaims, the present description and the drawing.

The door fitting according to the invention comprises a coupling, by means of which an external handle, such as in particular an outside handle or the like, can be decoupled from a lock mechanism assigned to the door and, in particular, can be coupled to the lock mechanism in combination with an access control system or the like. The outer handle is connected to a first nut part and the lock mechanism is connected to a second nut part of a split lock nut assigned to an inner handle. The coupling comprises at least one magnetized element which interacts with the split lock nut and which is movable between a coupled position connecting the two nut parts to one another and a decoupled position which allows the two nut parts to be separated from one another, and an actuating element provided with corresponding magnets or at least partially magnetized to act on the magnetized element ,

The coupling comprises at least one magnetized pin which interacts with the split lock nut and which is movable between a coupled position connecting the two nut parts to one another and a decoupled position allowing the two nut parts to be separated from one another, and a magnet which is provided with corresponding magnets or at least in sections to act on the magnetized pin in different directions Correspondingly magnetized adjusting disk, which is adjustable between two positions via an actuator, in which the magnets or magnetized sections are set relative to the magnetized pin such that the magnetized pin assumes its coupled position or its decoupled position.

In the door fitting according to the invention, the at least one magnetized pin engages in its coupled position in mutually aligned recesses of the two nut parts of the lock nut, while in its decoupled position it moves out of the recess of one of the two nut parts and is at least partially returned to the recess of the other nut part ,

Because of these designs, the need for a spring to be preloaded is eliminated. The coupling of the door fitting according to the invention is relatively compact and extremely smooth-running, so that not only a simpler and faster coupling is ensured, but also the energy expenditure required for this is reduced, which in particular in the case of an actuator operated with a battery or an accumulator, the cycles in which the battery has to be replaced or the accumulator has to be recharged, extended accordingly. Overall, the door fitting is easier and more convenient to use and accordingly more user-friendly.

The door fitting is preferably designed as an electromechanical door fitting and an electrical or electromagnetic actuator is provided as an actuator.

According to the invention, the second nut part of the split lock nut connected to the lock mechanism can be moved from an initial position against the spring force of a return spring unit.

It is also particularly advantageous if the first nut part of the split lock nut connected to the outer handle is biased into a starting position by a return spring unit.

The starting position of the first nut part and / or the starting position of the second nut part of the split lock nut can in particular be defined by a stop against which the first or second nut part comes to rest in its starting position. A common stop is preferably assigned to the two nut parts of the split lock nut.

Preferably, the nut parts of the split lock nut, which take at least one magnetized pin and take their respective starting position, can be adjusted between its decoupled position and its coupled position via the adjusting disk provided with magnets or magnetized at least in sections.

According to the invention, if the split lock nut is coupled to one another via the at least one magnetized pin and the actuated outer handle actuates the at least one magnetized pin as a result of the pretension generated by the return spring unit assigned to the second nut part, it jams between the two nut parts and the at least one magnetic pin is thereby held in its coupled position. This ensures that a clutch engaged due to a determined access authorization ensures that the clutch always remains securely engaged when the outer handle is actuated.

On the other hand, the at least one magnetized pin in the nut parts of the split lock nut, which takes up their respective starting position, can preferably be moved at least substantially without jamming between its decoupled position and its coupled position and vice versa. The clutch is thus extremely easy to move, so that it can be actuated quickly and safely via the adjusting disk provided with magnets or at least partially magnetized. The power consumption is also reduced accordingly, so that in the case of an actuator operated with a battery or by means of an accumulator, the cycles in which the battery has to be replaced or the accumulator has to be recharged are extended accordingly.

It is particularly advantageous if the at least one magnetized pin can be adjusted parallel to a common axis of rotation of the two nut parts of the split lock nut via the adjusting disk provided with magnets or magnetized at least in sections.

Advantageously, at least two magnetized pins which can be adjusted between a decoupled position and a coupled position are provided via the adjusting disk provided with magnets or at least partially magnetized. This results in a correspondingly more reliable and stable coupling of the two nut parts when the clutch is engaged. It is particularly advantageous if at least two of each other with respect to a common axis of rotation two nut parts of the split lock nut diametrically opposite magnetized pins are provided.

The adjusting disk provided with magnets or at least partially magnetized is expediently designed in a ring shape and rotatably mounted on a circular cylindrical extension of one of the two nut parts of the split lock nut.

The annular adjusting disk can be rotatably mounted, for example, on a circular cylindrical extension of the nut part connected to the lock mechanism. The nut part connected to the lock mechanism can be rotatably mounted, for example, in an opening of a mounting plate or the like via the relevant circular-cylindrical extension. In the latter case, the ring-shaped adjusting disk, which is rotatably mounted on the cylindrical extension, can be arranged in particular between the relevant nut part and the mounting plate.

The adjusting disk provided with magnets or at least partially magnetized can, for example, be provided with an attachment to which a coupling element which can be actuated via the actuator is connected in an articulated manner. In the case of a ring-shaped adjusting disc, the attachment in question can be provided in particular on the outer circumference of the adjusting disc, as a result of which a correspondingly large torque can be transmitted to the adjusting disc via the coupling element.

A further advantageous embodiment of the door fitting according to the invention is characterized in that the stop associated with the two nut parts of the lock nut can be fixed in two different positions on one or the mounting plate, and the door fitting is designed in such a way that it is changed in particular by changing the stop between these two positions is adaptable to two different directions of operation of the lock. The adaptation in each case a changed operating direction of the lock can thus be achieved in particular by simply repositioning the stop without the whole fitting having to be taken apart and reassembled.

A respective magnetized pin can in particular be assigned two magnets or magnetized sections provided on the adjusting disk with opposite poles facing the magnetized pin.

It is also advantageous if the door fitting is provided with a particularly anti-tamper protection pane on a side facing away from the mounting plate.

Fig. 1

eine schematische, auseinandergezogene Darstellung der magnetischen Kupplung einer beispielhaften Ausführungsform eines erfindungsgemäßen Türbeschlags,

Fig. 2

eine schematische Draufsicht der magnetischen Kupplung gemäß Fig. 1,

Fig. 3

eine schematische, perspektivische Teilansicht der Kupplung gemäß Fig. 1 im entkoppelten Zustand, wobei die Manipulationsschutzscheibe der Übersichtlichkeit halber weggelassen ist,

Fig. 4

eine schematische Seitenansicht eines Teils der Kupplung gemäß Fig. 1 im entkoppelten Zustand, wobei die Manipulationsschutzscheibe der Übersichtlichkeit halber wieder weggelassen ist,

Fig. 5

eine schematische, perspektivische Teilansicht der Kupplung gemäß Fig. 1 im gekoppelten Zustand, wobei die Manipulationsschutzscheibe der Übersichtlichkeit halber weggelassen ist, und

Fig. 6

eine schematische Seitenansicht eines Teils der Kupplung gemäß Fig. 1 im gekoppelten Zustand, wobei die Manipulationsschutzscheibe der Übersichtlichkeit halber wieder weggelassen ist.

The invention is described below using an exemplary embodiment with reference to the drawing; in this show:

Fig. 1

2 shows a schematic, exploded view of the magnetic coupling of an exemplary embodiment of a door fitting according to the invention,

Fig. 2

is a schematic plan view of the magnetic clutch Fig. 1 .

Fig. 3

a schematic, perspective partial view of the coupling according to Fig. 1 in the decoupled state, the manipulation protection disc being omitted for the sake of clarity,

Fig. 4

is a schematic side view of a part of the coupling Fig. 1 in the decoupled state, the manipulation protection plate being omitted for the sake of clarity,

Fig. 5

a schematic, perspective partial view of the coupling according to Fig. 1 in the coupled state, the tamper-evident pane being omitted for the sake of clarity, and

Fig. 6

is a schematic side view of a part of the coupling Fig. 1 in the coupled state, with the tamper protection disc omitted for the sake of clarity.

The 1 to 6 show a schematic representation of the magnetic coupling 10 of an exemplary embodiment of a door fitting 12 according to the invention, by means of which an external handle such as in particular an outside handle or the like can be decoupled from a lock mechanism assigned to the door and can be coupled to the lock mechanism in particular in combination with an access control system or the like. The outer handle (not shown) is connected to a first nut part and the lock mechanism (not shown) is connected to a second nut part 16 of a split lock nut assigned to an inner handle (not shown).

The coupling 10 comprises at least one magnetized element 18 which interacts with the split lock nut and which is movable between a coupled position connecting the two nut parts 14, 16 and a decoupled position which allows the two nut parts 14, 16 to be separated from one another, and a magnetized element 18 to act upon it appropriate Magnets 20, 22 provided or at least partially correspondingly magnetized control element 24.

As in particular the schematic, exploded representation of the Fig. 1 can be removed, in the present case the coupling 10 comprises, for example, at least one coupled position interacting with the split lock nut, between a coupling position connecting the two nut parts 14, 16 (cf. 5 and 6 ) and a decoupled position that allows the two nut parts 14, 16 to be separated from each other and a magnetized pin 18 that can be moved and a magnet 24, which is provided with corresponding magnets 20, 22, or at least partially magnetized, to act on the magnetized pin 18 in different directions, which is interposed via an actuator 26 is adjustable in two positions, in which the magnets 20, 22 or magnetized sections are set relative to the magnetized pin 18 so that the magnetized pin 18 assumes its coupled position or its decoupled position.

The door fitting can in particular be designed as an electromechanical door fitting 12 and an electrical or electromagnetic actuator 26 can be provided as an actuator.

The second nut part 16 of the split lock nut connected to the lock mechanism can be movable against the spring force of a return spring unit (not shown) provided in particular in the lock mechanism, while the first nut part 14 of the split lock nut connected to the outer handle can be moved by an associated one, in particular in an associated one Return spring unit 28 arranged in the housing (cf. the 1 to 3 and 5 ) can be biased into a starting position.

The starting position of the first nut part 14 and / or the starting position of the second nut part 16 of the split lock nut can be defined by a stop 30 against which the first or second nut part 14 or 16 comes to rest in its starting position. In the present case, the two nut parts 14, 16 of the split lock nut are assigned, for example, a common stop 30.

In the embodiment shown, the at least one magnetized pin 18, with its nut parts 14, 16 of the split lock nut taking its respective starting position, can be adjusted between its decoupled position and its coupled position via the adjusting disk 24 provided with magnets 20, 22 or magnetized at least in sections.

In the case of the nut parts 14, 16 of the split lock nut which are coupled to one another via the at least one magnetized pin 18, the at least one magnetized pin 18 is jammed during actuation of the outer handle as a result of the pretension generated by the return spring unit (not shown) assigned to the second nut part 16 , between the two nut parts 14, 16, whereby the at least one magnetized pin 18 is held in its coupled position. This ensures, for example, when the clutch 12 is engaged as a result of a recognized access authorization that the clutch remains reliably closed while the outer handle is actuated.

In contrast, the at least one magnetized pin 18 can be moved at least substantially without jamming between its decoupled position and its coupled position and vice versa when the nut parts 14, 16 of the split lock nut take their respective starting position. This ensures that the clutch runs as smoothly as possible and the consumption of electrical energy is kept as low as possible.

As especially with the help of Fig. 1 can be seen, the at least one magnetized pin 18 can engage in its coupled position in mutually aligned recesses 32, 34 of the two nut parts 14, 16 of the lock nut and in its decoupled position can be moved out of the recess 32 of one of the two nut parts 14, 16 and at least partially returned to the recess 34 of the other nut part. In the present exemplary embodiment, the at least one magnetized pin 18 is moved out of the recess 32 of the first nut part 14 in its decoupled position and at least partially returned into the recess 34 of the second nut part 16.

The at least one magnetized pin 18 can be adjustable parallel to a common axis of rotation 36 of the two nut parts 14, 16 of the split lock nut via the adjusting disk 24 provided with magnets 20, 22 or at least partially magnetized.

In particular, at least two magnetized pins 18 which can be adjusted between a decoupled position and a coupled position via the adjusting disk 24 provided with magnets 20, 22 or at least partially magnetized can also be provided. In the present case, for example, two magnetized pins 18 diametrically opposite one another with respect to a common axis of rotation 36 of the two nut parts 14, 16 of the divided lock nut are provided.

In principle, however, more than one pair of such magnetized pins 18 can also be provided, for example.

Like again in particular Fig. 1 can be removed, the adjusting disc 24, which is provided with magnets 20, 22 or at least partially magnetized, can be designed in particular in a ring shape and on a circular cylindrical extension 38 one of the two nut parts 14, 16, here for example the second Nut part 16, the split lock nut can be rotatably mounted. The relevant nut part 16 can also be rotatably mounted in a circular opening 40 of a mounting plate 42 via the circular-cylindrical extension 38.

The adjusting disk 24, which is provided with magnets 20, 22 or at least partially magnetized, can be provided with an extension 44, to which a coupling element 46, which can be actuated via the actuator 26, is connected in an articulated manner. If, as in the present case, the adjusting disk 24 is of annular design, the shoulder 44 can be provided in particular on the outer circumference of the adjusting disk 24, with which the greatest possible torque can be transmitted to the adjusting disk 24 via the actuator 26.

The stop 30, which is jointly assigned to the two nut parts 14, 16 of the lock nut, can be fixable on the mounting plate 32 in two different positions. In addition, the door fitting 12 can be designed such that it can be adapted to two different directions of operation of the lock, in particular by repositioning the stop 30 between these two positions. By unplugging, rotating and reinserting the stop 30, the coupling can thus be adapted to different directions of operation of the lock without the remaining door fitting 10 having to be disassembled and reassembled.

As especially with the help of Fig. 1 it can be seen that the door fitting 12 can be provided on its side facing away from the mounting plate 42 with a particularly anti-tamper protection plate 48.

LIST OF REFERENCE NUMBERS

10

clutch

12

door fittings

14

first nut part

16

second nut part

18

magnetized element, magnetized pen

20

magnet

22

magnet

24

Control element, adjusting disc

26

actuator

28

Return spring unit

30

attack

32

deepening

34

deepening

36

axis of rotation

38

circular cylindrical extension

40

circular opening

42

mounting plate

44

approach

46

coupling element

48

Manipulation windscreen

Claims (14)

1. Door fitting (12) with a coupling (10) via which an outer handle, such as in particular an exterior lever handle or the like, can be decoupled from a lock mechanism assigned to the door and, in particular in combination with an access control system or the like, can be coupled to the lock mechanism, wherein the outer handle is connected to a first follower part (14) of a divided lock follower, and the lock mechanism is connected to a second follower part (16) of same, the second follower part being assigned to an inner handle, and the coupling (10) comprises at least one magnetized element (18) which interacts with the divided lock follower and is movable between a coupled position connecting the two follower parts (14, 16) to each other and a decoupled position leaving the two follower parts (14, 16) separate from each other, and an adjustment element (24) which is provided with corresponding magnets (20, 22), or is correspondingly magnetized at least in sections, for acting upon the magnetized element (18), wherein the coupling (10) comprises at least one magnetized pin (18) which interacts with the divided lock follower and is movable between a coupled position connecting the two follower parts (14, 16) to each other and a decoupled position leaving the two follower parts (14, 16) separate from each other, and an adjustment disc (24) which is provided with corresponding magnets (20, 22) or is correspondingly magnetized at least in sections, for acting upon the magnetized pin (18) in different directions and which is adjustable via an actuator (26) between two positions in which the magnets (20, 22) or the magnetized sections thereof are adjusted relative to the magnetized pin (18) in such a manner that the magnetized pin (18) takes up its coupled position or its decoupled position, wherein the at least one magnetized pin (18) in its coupled position engages in mutually aligned depressions (32, 34) of the two follower parts (14, 16) of the lock follower and, in its decoupled position, moves out of the depression (32) of one of the two follower parts (14, 16) and is at least partially returned to the depression (34) of the other follower part, characterized in that the second follower part (16) of the divided lock follower, said second follower part being connected to the lock mechanism, is movable out of an initial position counter to the spring force of a resetting spring unit and, when the follower parts (14, 16) of the divided lock follower are coupled to each other via the at least one magnetized pin (18), during an actuation of the outer handle the at least one magnetized pin (18) is clamped between the two follower parts (14, 16) as a result of the prestress which is produced by the resetting spring unit assigned to the second follower part (16), and the at least one magnetized pin (18) is thereby held in its coupled position.
2. Door fitting according to Claim 1, characterized in that the door fitting is designed as an electromechanical door fitting (12), and an electric or electromagnetic actuator (26) is provided as the actuator.
3. Door fitting according to either of the preceding claims, characterized in that the first follower part (14) of the divided lock follower, said first follower part being connected to the outer handle, is prestressed into an initial position by a resetting spring unit (28).
4. Door fitting according to Claim 3, characterized in that the initial position of the first follower part (14) of the divided lock follower, and/or the initial position of the second follower part (16) of same, is defined by a stop (30) against which the first or second follower part (14 or 16) comes to bear in its initial position.
5. Door fitting according to Claim 4, characterized in that the two follower parts (14, 16) of the divided lock follower are assigned a common stop (30) .
6. Door fitting according to at least one of the preceding claims, characterized in that, when the follower parts (14, 16) of the divided lock follower take up their respective initial position, the at least one magnetized pin (18) is adjustable between its decoupled position and its coupled position via the adjustment disc (24) which is provided with magnets (20, 22) or is magnetized at least in sections.
7. Door fitting according to at least one of the preceding claims, characterized in that, when the follower parts (14, 16) of the divided lock follower take up their respective initial position, the at least one magnetized pin (18) is movable at least substantially without jamming between its decoupled position and its coupled position, and vice versa.
8. Door fitting according to at least one of the preceding claims, characterized in that the at least one magnetized pin (18) is adjustable parallel to a common axis of rotation (36) of the two follower parts (14, 16) of the divided lock follower via the adjustment disc (24) which is provided with magnets (20) or is magnetized at least in sections.
9. Door fitting according to at least one of the preceding claims, characterized in that at least two magnetized pins (18) are provided which are adjustable between a decoupled position and a coupled position via the adjustment disc (24) which is provided with magnets (20, 22) or is magnetized at least in sections.
10. Door fitting according to Claim 9, characterized in that at least two magnetized pins (18) lying diametrically opposite each other with respect to a common axis of rotation (36) of the two follower parts (14, 16) of the divided lock follower are provided.
11. Door fitting according to at least one of the preceding claims, characterized in that the adjustment disc (24) which is provided with magnets (20, 22) or is magnetized at least in sections is of annular design and is mounted rotatably on a circular-cylindrical extension (38) of one of the two follower parts (14, 16) of the divided lock follower.
12. Door fitting according to at least one of the preceding claims, characterized in that the adjustment disc (24) which is provided with magnets (20, 22) or is magnetized at least in sections is provided with a lug (44) to which a coupling element (46) which is actuable via the actuator (26) is connected in an articulated manner.
13. Door fitting according to at least one of the preceding claims, characterized in that the stop (30) which is preferably assigned to the two follower parts (14, 16) of the lock follower can be fixed on a mounting plate (42) in two different positions, and the door fitting (12) is designed in such a manner that it can be adapted to two different operating directions of the lock in particular by reinsertion of the stop (30) between said two positions.
14. Door fitting according to at least one of the preceding claims, characterized in that it is the door fitting, on a side facing away from the mounting plate (42), is provided with an in particular annular anti-manipulation disc (48).

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