ES2924366T3 - Coupling device for a door fitting, door fitting system and method for coupling or uncoupling a coupling device - Google Patents

Abstract

The present invention relates to a coupling device (10) for a door fitting and to a door fitting with said coupling device (10). The clutch device (10) has a clutch assembly (14) and a drive assembly (16). The coupling assembly (14) has a first nut half (18), a second nut half (20), and a coupling element (22). The drive assembly (16) has a drive member (24), a spring device (26), and an actuator (28). The first nut half (18) and the second nut half (20) are rotatably mounted about a rotation axis (15) between a first rotation position (120) and a second rotation position (122) in one direction. circumferential (94). The coupling element (22) can move in the axial direction (90) between an engagement position (126) and a disengagement position (124). The first nut half (18) and the second nut half (20) are coupled at the coupling position (126) fixed to rotation in the circumferential direction (94). The first nut half (18) and the second nut half (20) are disengaged in the circumferential direction (94) at the disengaging position (12). The actuator (28) is coupled to the driving element (24) through the spring device (26). The driving element (24) can move in the axial direction (90). The drive member (24) is coupled to the coupling member (22) in the axial direction (90) when a half-nut (18, 20) coupled to the coupling member (22) is disposed in the first rotatable position (120). The drive member (24) disengages with the coupling member (22) in the axial direction (90) when a half nut (18, 20) coupled to the coupling member (22) is disposed in the second rotatable position (122). . The invention also relates to methods (100, 140) for coupling and uncoupling the coupling device (10). (Automatic translation with Google Translate, without legal value)

Description

DESCRIPTION

Coupling device for a door fitting, door fitting system and method for coupling or uncoupling a coupling device

The present invention relates to a coupling device for a door fitting and to a method for coupling and uncoupling such a coupling device. The coupling device has in particular a coupling element for coupling two nut halves and a drive element for moving the coupling element.

This type of coupling device for door fittings is generally known in the state of the art.

For example EP 1522659 A2 shows an electric lock with a multifunction spring. The electric lock comprises a locking element, a decoding device, which is configured to receive a component bearing a code, a first actuating element, which is connected with an internal grip and is directly connected to the locking element, and a second drive element, which is attached to an external grip and is coupled with the closing element by means of an electromechanical device. The second drive element comprises a protruding stem, which is rigidly coupled with the external grip. The electromechanical device is made up of an electric motor, on the shaft of which a spiral worm is mounted, and a slider, which is coupled to the spiral worm by means of a spring. The spring encloses an end, a central segment and an opposite end. The opposite end is received between two diverging tips of the spiral worm. The slider is provided at its head with a coupling means. The protruding stem ends in a swivel plate. The electric lock comprises a counter plate, which is also rotatable. The plates rest freely on a sleeve, which is also rotatable and rigidly coupled with the closing element. The plate, the counter plate and the sleeve are provided with respective grooves. One of the ends is fixed to the lock body, the central segment engages in the slider and the coupling means is configured to enter the grooves, when the slider is in the previous position to engage the plate, the counter plate and the sleeve rigidly with each other.

Furthermore EP 1113130 B1 shows an electric lock, including a coupling mechanism. The coupling mechanism is arranged on the inner shield of the lock and, on the one hand, has the purpose of minimizing the forces that are transmitted, avoiding premature wear, and on the other hand, to be suitable for each lock. Its structure allows minimizing the turning of the handle or the external knob when empty. The outer escutcheon of the lock features a key reader and an external knob. The inner escutcheon of the lock features an electronic control circuit, which is powered by a battery, the coupling mechanism, and an internal knob. Two concentric shafts start from the coupling mechanism, one of which acts on the lock retainer and the other rotates freely and is connected to the external knob. A valid key activates a motor or similar, and this moves a sleeve, whereby the coupling mechanism temporarily couples the two concentric shafts, so that they form a single unit and allow the lock to be opened.

The main technical requirements for this type of coupling are resistance to fatigue (200,000 standard cycles) and resistance to torque (60 Nm standard). This must be achieved with a design that is as compact as possible (width or diameter as well as thickness). The width of the door fitting must not exceed a maximum dimension so that it can also be mounted on so-called tubular frame doors.

Based on this, an object of the present invention is to provide a coupling device for a door fitting which can be operated with little wear and in a more energy efficient manner.

Furthermore, it is an object of the present invention to provide a coupling device for a door fitting that is as simple as possible to manufacture.

According to the invention, therefore, it is proposed in a first aspect to provide a coupling device for a door fitting. The coupling device has a coupling module and an actuation module. The coupling module has a first nut half, a second nut half and a coupling element. The actuation module has a drive element, a spring unit and an actuator. The first nut half and the second nut half are rotatably mounted about a pivot axis in each case between a first pivot position and a second pivot position in a circumferential direction. The coupling member is movable in an axial direction between an engaging position and a disengaging position. The first nut half and the second nut half are coupled at the coupling position in a rotation-resistant manner in the circumferential direction. The first nut half and the second nut half are disengaged at the disengagement position in the circumferential direction. The actuator is coupled with the drive element via the spring unit. The drive element can move in the axial direction. The drive element is engaged with the coupling element in the axial direction, when a nut half engaged with the coupling element is arranged in the first rotational position. The drive element is uncoupled from the coupling element in the axial direction, when a nut half engaged with the coupling element is arranged in the second rotational position.

Furthermore, in a second aspect it is proposed to provide a door fitting system with a coupling device according to the first aspect.

Furthermore, in a third aspect of the invention, a method for coupling a coupling device is proposed. The procedure has the following stages:

- providing the coupling device with a coupling module and an actuation module, the coupling module having a first nut half, a second nut half and a coupling element, the actuation module having a drive element, a drive and an actuator, the first nut half and the second nut half being rotatably mounted about an axis of rotation between a first rotation position and a second rotation position in a circumferential direction, the actuator being coupled with the drag element by means of the spring unit;

- arranging the coupling element in a disengaging position, in which the first nut half and the second nut half are disengaged in the circumferential direction, one nut half engaged with the coupling element being arranged in the second disengaging position rotation, in which the drive member is disengaged from the coupling member in an axial direction;

- moving the driver through the actuator in the axial direction;

- rotating the nut half engaged with the coupling element from the second rotational position to the first rotational position, in which the drive element is engaged with the coupling element in the axial direction; - moving the coupling element in the axial direction from the uncoupling position to a coupling position, in which the first nut half and the second nut half are coupled in a rotation-resistant manner in the circumferential direction.

Furthermore, in a fourth aspect of the invention, a method for uncoupling a coupling device is proposed, the method presenting the following steps:

- providing the coupling device with a coupling module and an actuation module, the coupling module having a first nut half, a second nut half and a coupling element, the actuation module having a drive element, a drive and an actuator, the first nut half and the second nut half being rotatably mounted about an axis of rotation between a first rotation position and a second rotation position in a circumferential direction, the actuator being coupled with the drag element by means of the spring unit;

- arranging the coupling element in a coupling position, in which the first nut half and the second nut half are rotatably coupled in the circumferential direction, the first nut half and the second nut half being arranged nut in the second rotational position, in which the drive element is disengaged from the coupling element in an axial direction;

- moving the driver through the actuator in the axial direction;

- rotating the first nut halves and the second nut halves from the second rotational position to the first rotational position, in which the driving element is coupled with the coupling element in the axial direction, - displacing the coupling element coupling in the axial direction from the coupling position to a disengaging position, in which the first nut half and the second nut half are disengaged in the circumferential direction.

The orientation of the coupling device in space is defined with respect to the axial direction, the radial direction and the circumferential direction. These three directions therefore define a three-dimensional coordinate system. This coordinate system can generally also be specified in Cartesian coordinates, the axial direction, the radial direction and the circumferential direction being obtained from the corresponding transformations of the Cartesian coordinates into cylindrical coordinates. The axis of the axial component corresponds in this direction to the axis of rotation of the components of the coupling module.

The nut half engaged with the coupling element is preferably the first nut half. Alternatively the nut half coupled with the coupling element can also be the second nut half. The coupling element is arranged on the coupling device in such a way that it is always engaged with at least one of the two nut halves.

The term "spring unit" generally defines a unit, which has an elasticity, so that under the action of a force it can be elastically deformed. In this way, static energy can be stored in the form of mechanical stresses in the spring unit. In other words, a spring unit is configured to absorb mechanical stresses, such as tensile stresses, shear stresses, or torsional stresses, in one or more spatial directions and thus accumulate a pretension force directed against the tension. mechanics. For example, a spring unit can be designed as a spring, in particular a bending spring, a torsion spring or a disk spring. Alternatively a spring unit can also be formed of an elastic material, eg rubber, metal foam or the like.

The term "actuator" generally defines a unit, which is intended to convert a signal into a mechanical movement. The signal can be for example an electrically, hydraulically, pneumatically or mechanically transmitted signal. Consequently, in these cases we speak of electric, hydraulic, pneumatic or mechanical actuators. For example, an electric actuator is configured to receive an electrical control signal and convert it into mechanical motion.

In general, the movable individual part in a lock in which there is a housing for a connecting element for a door latch is designated as a nut, a latch nut or a lock nut. In particular, the receptacle can be configured as a square opening and the connecting element as a square pin. However, in general, other cross-sectional geometries such as square openings and square pins can also be used. In principle, any non-circular cross-sectional geometry that can transmit a torque is suitable, for example triangular, pentagonal or hexagonal geometries or an ellipse. The combination of different square pins and nuts can be produced by means of intermediate sleeves.

Panic locks with latches on both sides usually have a so-called “split nut”. In this respect, it is a set of latches with a divided connecting element, in particular a square, in which the two element halves, in particular the square halves, must be actuated independently of one another. In the closed state the door cannot be opened from the outside. It is possible to press the latch, however the door does not open. In any case, accessibility from inside is guaranteed.

The coupling concept according to the invention uses such a two-part nut, which is formed by two nut halves. The two walnut halves can be arranged in a door hardware system as latch- and lock-side halves. The two nut halves can be positively connected by means of the axially displaceable coupling element. For example, the coupling element can be located entirely in the latch-side nut half in the free-running mode. With release, it is displaced axially in the direction of the door or lock and then also engages with the lock-side nut half. A drive of the external latch can then be transmitted via an external square ("latch receptacle") from the latch-side to the lock-side nut half and thus to a lock square.

Together with the coupling element, the two nut halves form a very compact module, which allows a small construction. Furthermore, the coupling element can be arranged in the diameter of the nut halves, so that these parts can initially be displaced radially over the entire circumference. In addition, through the selected geometries it is possible to transmit the necessary torques safely.

When the outer and inner door latches are not actuated, the nut halves are arranged in the first turning position and aligned with each other. The coupling element can then move almost without load between the coupling position and the uncoupling position. However, when the nut halves are rotated relative to each other, so that, for example, the second nut half is arranged in the first rotation position and the first nut half is arranged in the second rotation position. This occurs, for example, when an external latch, engaged with the external nut, is actuated before the engagement is activated, for example by displaying an authorized transponder. In this case the coupling element cannot be displaced axially because the nut halves are already rotated relative to each other. The same can happen with a hanging internal latch and/or a lock that does not return the lock square ideally, in particular as a result of a weak return spring in the lock.

The almost inverse case is that the user, after showing an authorized transponder and activating the coupling, activates the latch and keeps it pressed when the electronics gives an uncoupling order. Since the two nut halves are stressed relative to each other in this case, the coupling element cannot move back. In the worst case, the hardware would remain attached so the door would be accessible to anyone.

For this, according to the invention, a spring unit, which is configured as a pin spring, for example, is provided as an energy store. The energy accumulator of the spring unit is loaded with the locked coupling element, so that after the nut halves are aligned again in the first rotational position, the coupling element can then be moved.

In the event that the uncoupling command occurs with the latch unhooked, the drive element is first moved by means of the actuator without charging the energy accumulator. Re-rotating the nut halves, engaging the drive member with the coupling member moves the drive member. drag, thereby charging the energy store of the spring unit. Once the nut halves are aligned again, the energy store is discharged and the coupling element moves back through the driver completely to the latch-side nut half.

In comparable systems, the drive energy of the actuator is usually used to charge an energy store. In this way the actuator only works practically without load when the coupling element can also move freely. According to the invention, however, the actuator can almost always work without load, because the energy store is not charged by a movement of the actuator, but by the coupling between the drive element and the coupling element.

In other words, the construction of the coupling device according to the invention ensures that the spring unit is (only) prestressed, i.e. only accumulates energy, when the nut halves are rotated from the second to the second rotational position. first turning position, whereby the drive element engages with the coupling element.

In this way the actuator and the spring unit are loaded less as a whole with respect to known solutions. Thus, the coupling device can be operated with less wear and greater energy efficiency.

Therefore, the objective set at the beginning is fully achieved.

In a first embodiment, provision can be made for the first nut half and the second nut half to each have a radially outwardly arranged groove extending in the axial direction and in which the coupling element is guided.

Due to the contact surfaces between the coupling element and the corresponding grooves of the nut halves, the required torques can be safely transmitted in the coupled state in the coupling position. In this connection, in particular the coupling element is arranged in the grooves. This also achieves a space-saving location of the coupling element.

In a further embodiment, provision can be made for the first nut half and the second nut half to be arranged side by side in the axial direction.

In this way, a compact construction of the coupling module is achieved. Preferably the two nut halves are engaged with each other in the radial direction and the axial direction and can rotate relative to each other in the circumferential direction. To do this, the nut halves can have recesses and projections configured with rotational symmetry complementary to each other and to the axis of rotation.

In a further embodiment, provision can be made for the coupling element to have a radially externally arranged projection, the drive element having a radially internally arranged groove and the projection engaging in the groove when the nut half is engaged with the coupling element. coupling is arranged in the first rotational position, to engage the drive member with the coupling member in the axial direction, and the groove extending in the circumferential direction.

In this connection, the projection and the groove are configured in such a way that they can be engaged or disengaged when the coupling module is rotated between the first and the second rotational position. In this regard, preferably the drive element is disposed radially outwardly relative to the nut halves and the projection of the coupling element extends radially further outward than the nut halves.

In a further embodiment it can be provided that the groove has at least a first and a second end, the first end being open in the circumferential direction.

Thus, by turning between the first and the second turning position, the coupling element with the projection at the open end can move into the groove or out of the groove.

In a further embodiment, provision can be made for the second end to be open in the circumferential direction and to be arranged on the driver element opposite the first end.

Depending on the installation situation, the coupling module is rotated to the right or left from the first to the second position. This depends in particular on whether the door fitting is placed on the door on the right or left. In this way the direction of rotation from the first rotation position to the second rotation position can be different. Due to the symmetrical configuration of the drive element groove, it is achieved that the drive element and the coupling element can be engaged or disengaged independently of the installation situation when rotating between a first and a second pivot position.

In a further embodiment, provision can be made for the groove to have a groove profile in the circumferential direction, a first width of the groove profile at the first groove end being greater than a second width of the groove profile in a central segment of the groove, the central segment being disposed between the first and second ends.

In this case, the projection of the coupling element engages in the first rotational position with the drive element in the middle section of the groove. The increased width of the drive element groove allows that with a displacement of the drive element with respect to the coupling element in the axial direction, the projection of the coupling element remains aligned with the groove.

In a further embodiment it can be provided that the first width is greater than or equal to the sum of the width of the projection and the axial offset between the engagement position and a disengagement position, the second width of the groove profile being essentially equal to a width of the protrusion.

Thus, on the one hand, it is possible for the projection of the coupling element in the state coupled with the drive element to be arranged in the center segment of the groove with almost no play. On the other hand, by choosing the width of the open end it is ensured that the projection of the coupling element is arranged aligned in any case with the groove of the drive element.

In a further embodiment, provision can be made for the projection of the coupling element to be arranged in the center segment of the groove, when the nut half engaged with the coupling element is arranged in the first rotational position.

As mentioned above, in this way the projection of the coupling element can be engaged in the central segment of the groove with the drive element.

In a further embodiment, it can be provided that the groove profile tapers from the first end towards the central segment, in particular with a constant slope.

In this way, the loads acting on the groove and the projection when changing between the second and the first rotational position are minimized.

In a further embodiment, it can be provided that the driving element is guided in the axial direction.

In this way the driver element can be positioned with an exact fit in the circumferential direction. This ensures that the driver element is always aligned in the first rotational position in the best way with respect to the coupling element.

In a further embodiment, it can be provided that the drive element can be prestressed via the actuator by means of the spring unit in the axial direction, optionally into a first position or a second position, the drive element being able to be coupled in the first position with the drive element. coupling in the uncoupling position and in the second position with the coupling element in the coupling position.

In other words, the first position is configured corresponding to the uncoupling position and the second position is configured corresponding to the coupling position. Thus, the actuator is configured to change the relaxed state of the spring unit optionally to the first position or to the second position, whereby the actuator pretensions the spring unit optionally with respect to the first position or the second position.

In a further embodiment it can be provided that the drive element can be moved in the axial direction by a biasing force of the spring unit, when the nut half coupled with the coupling element is arranged in the first position in each case. swivel or the second swivel position, in particular the drive element can be moved optionally by the biasing force of the spring unit into the first position or the second position.

In other words, when the drive element is moved out of this position by coupling with the coupling element of the respective prestressed position, then the energy store of the spring unit is charged and a directed pretensioning force is produced. to the respective prestressed position. This ensures that the spring unit only accumulates energy or creates a pretensioning force when the coupling module rotates from the second swivel position to the first swivel position, thereby reducing wear on the spring unit and the actuator.

In a further embodiment it can be provided that the spring unit can be tensioned by a movement of the nut half coupled with the coupling element from the second swivel position to the first swivel position via the drive element in the axial direction. .

As already described above, the energy store of the spring unit is charged by the swivel movement of the coupling module from the second swivel position to the first swivel position. When the two nut halves of the coupling module are arranged in the first swivel position, the spring unit is relieved again when the drive element moves the coupling element by means of the pretensioning force of the almost unloaded spring unit in the axial direction according to the direction of the pretension force.

In a further embodiment, provision can be made for the coupling device to additionally have a further spring unit, the further spring unit biasing the nut half coupled with the coupling element into the first swivel position.

In this way it is achieved that the coupling module can be automatically returned to the first rotational position after one of the nut halves or both nut halves have been rotated into the second rotational position. As already mentioned above, the turning can be produced by actuation of an external or internal handle, in particular a latch or knob, when it is engaged with one of the nut halves. Thus, the first rotation position can be considered as a state of rest or an initial state. The other spring unit is designed to prestress the coupling device to this initial state or to transfer the coupling device to this initial state when a state biased to the second rotational position is produced by an actuation.

In a further embodiment, provision can be made for the coupling device to also have a housing, with the coupling module and actuation module being arranged in the housing.

All the components of the coupling device are arranged in the housing and the housing also ensures the relative positioning of the individual components.

In a further embodiment, it can be provided that when the nut half coupled with the coupling element is arranged in the first swivel position, the drive element is coupled with the coupling element, so that the drive element and the drive element coupling element can move together in the axial direction, and the drive element being disengaged from the coupling element when the nut half engaged with the coupling element is arranged in the second rotational position, so that the drive element can move independently of the coupling element in the axial direction.

As already described above, the drive element and the coupling element act together in such a way that they are only coupled to each other in the first rotational position and thus can move together in the axial direction. This coupling or uncoupling in the first and second swivel positions ensures that the energy store of the spring unit is only loaded with a swivel movement from the second to the first swivel position, whereby the coupling device can be operated with less wear and greater energy efficiency.

In a further embodiment, provision can be made for the spring unit to be configured as a pin spring, with a first spring pin of the spring unit being coupled to the actuator, a second spring pin being coupled to the drive element, and being movable. the first spring pin through the actuator between a first pin end position and a second pin end position.

In this case, the spring unit prestresses the drive element in the first position, when the first spring pin is arranged in the first pin end position, and in the second position, when the first spring pin is arranged in the the second pin end position.

In a further embodiment it can be provided that the first spring pin of the spring unit is disengaged from a recess in the actuator in the first pin end position and in the second pin end position, and the first spring pin can be engaged , for a movement between the first pin-end position and the second pin-end position, with the recess of the actuator.

In particular, it is achieved that the spring unit does not exert any torque on the actuator, when the first spring pin of the spring unit is disengaged from the first pin end position and the second pin end position. an actuator recess.

In a further embodiment of the door fitting system, provision can be made for the door fitting system to additionally have a first drive element, a second drive element and an internal shaft, the first drive element being coupled with the first drive half. nut in a rotation-resistant manner, the inner shaft coupling the second nut half with the second drive element in a rotation-resistant manner.

Thus, the first nut half forms an outer nut and the second nut half forms an inner nut. By actuating the first actuating element the outer nut is rotated from the first to the second rotational position. By actuating the second actuating element, the inner nut is rotated from the first to the second spin position. When the engaging member is disposed at the engaging position, the first drive member and the second drive member are coupled with each other in the circumferential direction in a rotation-resistant manner.

In a further configuration of the door fitting system, provision can be made for the door fitting system to additionally have an interrogation unit for interrogating an access authorization, the interrogation unit being coupled to the actuator of the coupling device, being configured in in particular the actuator for, after querying a valid access authorization, to pretension the drive element to the second position, the actuator otherwise being configured to pretension the drive element to the first position.

The query unit can preferably be configured to query the access authorization mechanically or electronically. A mechanical interrogation unit can be designed, for example, as a lock cylinder, which interrogates the key profile of a key. An electronic query unit can be configured for example to read and check the code of a transponder. Alternatively, an electronic query unit may also be configured to query the entry of a combination of numbers via a keyboard or a numeric keypad. When the polling unit determines a valid access authorization, the polling unit causes the actuator to bias the drive element into the second position. For this, the actuator is mechanically or electronically coupled to the query unit. Preferably, the actuator, after a certain period of time after consulting a valid access authorization, causes the drive element to be pretensioned to the first position again.

In a further refinement of the method for coupling, provision can be made for the drive element to be biased in the axial direction through the actuator by means of the spring unit in the axial direction during the movement stage, whereby the drive element can be coupled in the second position with the coupling element in the coupling position.

Thus, the actuator changes the relaxed state of the spring unit in the axial direction to the second position. In the second swivel position, the drive element is uncoupled from the coupling element. In this way the drive element can be moved to the second position by movement of the spring unit directed towards the second position.

In a further refinement of the method for coupling, it can be provided that during the turning stage the drive element is moved in the axial direction from the second position to a first position, in which the drive element can be coupled with the drive element. coupling in the uncoupling position, whereby the spring unit is tensioned through the driver in the direction of the second position.

As described above, the spring unit is in the second position in the relaxed state. If the drive element is now moved from the second position to the first position, the spring unit builds up a biasing force directed towards the second position.

In a further embodiment of the method for the coupling, it can be provided that in the displacement stage the drive element is moved by a biasing force of the spring unit directed towards the second position in the axial direction from the first to the second position. whereby the drive element moves the coupling element from the uncoupling position to the coupling position.

In the first rotational position, the drive element and the coupling element are coupled in the axial direction, so that the drive element and the coupling element are displaced by the biasing force directed towards the second position in the axial direction . In this connection, the driving element moves from the first position to the second position and the coupling element moves from the uncoupling position to the coupling position.

In a further embodiment of the method for decoupling, provision can be made for the drive element to be biased in the axial direction through the actuator by the spring unit into a first position during the movement stage, the drive element being able to engage in the first position with the coupling element in the uncoupling position.

Thus, the actuator changes the relaxed state of the spring unit in the axial direction to the first position. In the second swivel position, the drive element is uncoupled from the coupling element. Thus, the drive element can be displaced by movement of the spring unit directed towards the first position to the first position.

In a further refinement of the method for decoupling, it can be provided that during the pivoting stage, the drive element moves in the axial direction from the first position to a second position, in which the drive element can be coupled with the drive element. coupling in the coupling position, whereby the spring unit is tensioned through the driver in the direction of the first position.

As described above, the spring unit is in the first position in the relaxed state. If the drive element is now moved from the first position to the second position, the spring unit builds up a biasing force directed towards the first position.

In a further embodiment of the method for decoupling, it can be provided that in the displacement stage the drive element is moved by a biasing force of the spring unit directed towards the first position in the axial direction from the second to the first position. whereby the driver moves the coupling element from the coupling position to the uncoupling position.

In the first rotational position, the drive element and the coupling element are coupled in the axial direction, so that the drive element and the coupling element are displaced by the biasing force directed towards the first position in the axial direction . In this connection, the driving element moves from the second position to the first position and the coupling element moves from the coupling position to the uncoupling position.

It goes without saying that the features mentioned above and those that will be explained further below can be used not only in the combination indicated in each case, but also in other combinations or individually, without departing from the scope of the present invention.

Embodiments of the invention are shown in the drawing and will be explained in more detail in the following description. They show:

Figure 1 an isometric view of a coupling device;

Figure 2 an isometric view of the coupling device of Figure 1 without housing;

Figure 3 a side view of the coupling device of Figure 2;

Figure 4 an exploded view of the coupling device of Figure 2;

figure 5, two isometric views of a first nut half of the coupling device of figure 2; Figure 6, two isometric views of a second nut half of the coupling device of Figure 2; Figure 7 an isometric view of a coupling element of the coupling device of Figure 2; figure 8, two isometric views and a top view of a drive element of the coupling device of figure 2;

FIG. 9 a schematic representation of a method for coupling;

figures 10 to 15, isometric views of the coupling device of figure 2 in different states of the method of figure 9;

FIG. 16 a schematic representation of a method for decoupling;

figures 17 to 22, isometric views of the coupling device of figure 2 in different states of the method of figure 16;

figure 23, an isometric view of a movement transmission element of the coupling device of figure 2; Y

figure 24, schematic views of different positioning states of a movement transmission element with respect to a spring element of the coupling device of figure 2 with respect to each other.

Figure 1 shows an isometric view of the construction of a coupling device 10. Such a coupling device can be used, for example, for a door fitting. The coupling device 10 has a housing 12, a coupling module 14 and an actuation module 16. The coupling module 14 and the actuation module 16 are arranged in the housing 12.

Figures 2 and 3 show an isometric view and a side view of the construction of the coupling device of Figure 1, the casing 12 having been omitted, to better represent the construction of the coupling module 14 and actuation module 16. 4 shows an exploded view of the construction of the coupling device of figures 2 and 3.

In Figures 2-4, the coupling module 14 and actuation module 16 are arranged with respect to a coordinate system 88. The coordinate system 88 is shown in Cartesian coordinates x, y, z. Furthermore, the coordinate system is also represented in cylindrical coordinates, which can be derived from Cartesian coordinates. In this regard, the cylindrical coordinates define three directions, namely an axial direction 90, which corresponds to the direction of the z axis, a radial direction 92, which lies in the x,y plane and which is away from the z axis, and a direction circumferential 94, which is also located in the x,y plane and which runs about the z axis. Axial direction 90, radial direction 92 and circumferential direction 94 are each oriented perpendicular to one another.

The coupling unit 14 has a first nut half 18, a second nut half 20 and a coupling element 22. The first nut half 18 and the second nut half 20 are rotatably mounted in the circumferential direction. 94 on a common axis of rotation 15. The axis of rotation 15 extends in the 90 axial direction and corresponds to the z axis of the coordinate system 88. The first nut half 18 and the second nut half 20 are arranged adjacent and consecutive in the 90 axial direction. The first nut half 18 and the second nut half 20 are coupled to each other in the radial direction 92 and the axial direction 90 and are movable relative to each other in the circumferential direction 94. The first nut half 18 and the second nut half nut 20 can rotate in the circumferential direction between a first rotation position 120 and a second rotation position 122. The first rotation position 120 and the second rotation position 122 as well as the movements between the first rotation position 120 and the second turning position 122 will be described in more detail below in connection with Figures 10 to 15 and 17 to 22.

The first nut half 18 has a groove 48 which is arranged on the outside in the radial direction 92 and extends in the axial direction 90 . The coupling element 22 is inserted into the groove 48 of the first nut half 18 and is guided therein in the axial direction 90 . Thus, the coupling element 22 can only move in the axial direction 90 . The second nut half 20 also has a groove 60, which is arranged on the outside in the radial direction 92 and also extends in the axial direction 90 . When the slot 48 and the slot 60 are arranged in an aligned manner, the engaging member 22 can move in both the slots 48, 60 in the axial direction 90 . When the engaging member 22 is disposed in both grooves 48, 60, the engaging member 22 engages the first and second nut halves 18, 20 in the circumferential direction 94. Thus, the engaging member 22 can move in the circumferential direction. 90 axially between an engagement position 126, in which the first nut half 18 and the second nut half 20 are coupled in the circumferential direction 94 in a rotation-resistant manner, and a disengagement position 124, in which the first nut half 18 and second nut half 20 are disengaged in circumferential direction 94. Engagement position 126 and disengagement position 124 will be described in more detail below in connection with Figs. 10 to 15 and 17 to 22.

The actuation module 16 has a drive element 24, a spring unit 26 and an actuator 28. The drive 28 is coupled with the drive element 24 via the spring element 26. The drive element 24 can move in the 90 axial direction. The drive element 24 can be coupled with the coupling element 22 in the axial direction 90, so that a common movement in the axial direction 90 is possible. The actuator has a motion transmission unit 30 and a drive unit 32. The drive unit 32 is controlled by a control signal. Thus, the actuator is configured as an electric actuator, which receives an electrical control signal and converts it into a mechanical movement. The motion transmission unit 30 and the drive unit 32 are coupled to each other via a toothed gear. The motion transmission unit 30 has a housing 31 for a shaft 37. The motion transmission unit 30 is rotatably mounted on the shaft 37. The drive unit 32 is designed to rotate the motion transmission unit 30 on tree 37.

The spring unit 26 is configured as a pin spring and has a first spring pin 27', a second spring pin 27" and a winding. The two spring pins 27', 27" extend away from the winding.

The coupling device 10 further has a first support element 34 and a second support element 36. The first support element 34 has a pin 35 for receiving the winding of the spring unit 26. The coil is mounted on the pin 35 so that it can rotate on the pin 35. The movement transmission unit 30 is arranged on the second support element 36.

In figure 23 the movement transmission unit 30 is represented in an isometric view in more detail. The motion transmission unit 30 furthermore has a recess 80 for one end of the first spring lug 27' of the spring unit 26. By rotating the motion transmission unit 30 on the shaft 37, the first lug can be driven. spring 27'. In this way a rotational movement of the movement transmission unit 30 is transmitted to a rotational movement of the first spring lug 27' on the pin 35. This movement transmission is described in FIG. 24 in more detail.

Fig. 24 shows different states of the motion transmission from a rotary motion of the motion transmission unit 30 to a rotary motion of the first spring leg 27'. The spring pin 27' is movable between a first pin end position 87' and a second pin end position 87'' by the motion transmission unit 30. The motion transmission unit 30 has a first contact surface 82 and a second contact surface 84 for the end of the first spring leg 27'.

Fig. 24(A) shows a first state 86A, in which the first spring leg 27' is disposed in the first leg end position 87'. In the first lug end position 87' the end of the first spring lug 27' is disengaged from the recess 80 and rests on a first bearing point on the circumferential side of the motion transmission unit 30. The first support point is disposed adjacent to the first contact surface 82.

Figure 24(B) shows a second state 86B, in which the end of the first spring leg 27' rests on the second contact surface 84. This state occurs when the spring leg 27' passes from the first pin end position 87' to the second pin end position 87”.

Fig. 24(C) shows a third state 86C, in which the first spring leg 27' is arranged in the second leg end position 87''. In the second lug end position 87'' the end of the first spring lug 27' is disengaged from the recess 80 and rests on a second support point on the circumferential side of the motion transmission unit 30. The second support point is disposed adjacent to the second contact surface 84.

Figure 24(D) shows a fourth state 86D, in which the end of the first spring leg 27' rests on the first contact surface 82. This state occurs when the spring leg 27' passes from the second pin end position 87'' to the first pin end position 87'.

By transferring the rotational movement of the movement transmission unit 30 to the rotational movement of the first spring leg 27', the spring unit 26 can optionally be prestressed relative to the first leg end position 87' or the second leg end position 87'. pin end position 87”.

As further shown in FIGS. 2 to 4, the drive element 24 has a seat 78 for one end of the second spring lug 27" of the spring unit 26. An axial movement of the drive element 24 is thus coupled with a rotational movement of the spring unit 26. The drive element 24 can be moved by a biasing force of the spring unit 26 in the axial direction. On the contrary, the spring unit can be prestressed by an axial movement of the drive element 24 in the axial direction 90 . Thus, the drive member 24 can move in the axial direction 90 between a first position 128 and a second position 130. In the first position 128 the drive member 24 can engage with the coupling member 22 in the disengagement position 124. In the second position 130 the drive member 24 can engage with the coupling member 22 in the coupling position 126. The first position 128 and the second position 130 will be described in more detail below in connection with Figures 10 to 15 and 17 to 22.

In other words, the drive element 24 can be pretensioned via the actuator 28 by means of the spring unit 26 optionally into the first position 128 or the second position 130. In this connection, the drive element 24 can be engaged in the first position with the coupling element 22 in the uncoupling position and in the second position with the coupling element 22 in the coupling position.

When the first nut half 18 is disposed in the first rotational position 120, the drive member 24 is engaged with the coupling member 22, so that the drive member 24 and the coupling member 22 can move together in the rotational direction. 90 axial direction. When the first nut half 18 is arranged in the second rotational position 122, the drive element 24 is decoupled from the coupling element 22, so that the drive element 24 can move independently of the coupling element 22 in the direction 90 axial. The spring unit 26 can be stressed by a movement of the first nut half 18 from the second swivel position 122 to the first swivel position 120 via the drive element in the axial direction 90 .

The coupling device 10 also has a further spring unit 38. The further spring unit 38 is configured as a return spring. The other spring unit 38 has a first end, a second end and a coil. The other spring unit 38 is arranged in an annular groove of the first nut half 18. The annular groove has two recesses radially on the outside, through which one end of the other spring unit 38 is guided in each case. out of the first nut half 18 in the radial direction 92 .

The coupling device 10 also has a first bearing ring 40 and a second bearing ring 41. The two bearing rings 40, 41 are arranged one after the other in the axial direction 90 . Furthermore, the two bearing rings 40, 41 are arranged radially inside the other spring unit 38 and serve as a bearing for the other spring unit 38.

The coupling device 10 also has a bearing washer 42. The bearing washer 42 is arranged between the first nut half 18 and the second nut half 20. The bearing washer 42 is preferably inserted in a depression in the second nut half. walnut 20.

The coupling device 10 also has a stop element 44, which is arranged in the radial direction 92 on the outside of the first nut half 18 in the first and second recesses of the annular groove. The stop element 44 forms a stop for the first and second ends of the other spring unit 38. Thus, with a rotation of the first nut half 18 one of the ends of the other spring unit 38 is pressed against the respective stop of the stop unit, whereby the spring unit 38 is biased against the direction of rotation of the first nut half 18 in the circumferential direction 94. The first nut half 18 can rotate by the biasing force of the other spring unit 38 in the circumferential direction 94. Preferably the other spring unit 38 is arranged in the first rotational position in a relaxed state and is prestressed in the second rotational position in the circumferential direction 94 in the direction of rotation. first turning position.

The coupling device 10 also has a bar 46 in the form of a square bar. The first nut half 18 has a bar receptacle 46 into which the bar 46 can be inserted and fixed. The bar 46 is then coupled in the circumferential direction 94 in a rotation-resistant manner with the first nut half 18.

In general, the coupling device can be part of a door hardware system. The coupling device is preferably arranged on the outer side of the door. The door fitting system can have a first drive element on the outside of the door, which is coupled with the first walnut half 18, preferably via the bar 46, in the circumferential direction 94 in a rotation-resistant manner. . In this sense, the bar 46 can be designed as an external square. The door hardware system can have a second drive element on the inner side of the door, which is coupled with the second walnut half 20, preferably via an internal shaft or lock square, in the circumferential direction 94 of twist-resistant manner. The first and second actuating elements can be designed, for example, as knobs or handles.

The door hardware system can additionally have an interrogation unit for interrogating an access authorization. The polling unit is mechanically or electrically coupled to the actuator 28 in order to communicate a polled valid access authorization to the actuator 28. Only after polling a valid access authorization is the actuator 28 configured to pretension the drive element 24 in the second position 126, while, on the contrary, the actuator 28 is configured to pretension the drive element 24 in the first position 124.

Figure 5 shows the first nut half 18 in a first isometric view (A) and a second isometric view (B). The first isometric view (A) shows the side of the first nut half 18 directed towards the second nut half 20. The second isometric view (B) shows the side of the first nut half 18 directed in the opposite direction. opposite the second half of walnut 20.

The first nut half 18 is configured essentially rotationally symmetric about the axis of rotation 15. The first nut half 18 has a groove 48 on the radially outer edge. The slot 48 extends in the axial direction 90 . In the assembled state of the coupling device 10, shown in FIGS. 1 to 3, the coupling element 22 is inserted in the groove 48. The coupling element 22 is described in more detail in FIG. 7.

The groove 48 has a constant width in the circumferential direction 94. The width of the groove 48 essentially corresponds to the width of the coupling element 22 in the circumferential direction 94. In this way the coupling element 22 is guided in the axial direction 90 and so you can move without play. The slot has a constant height in the radial direction 92 . The height of the groove 48 essentially corresponds to a height of the coupling element 22 in the radial direction 92 . Slot 48 has a length in the axial direction 90 . The length of the groove 48 is at least as long as a length of the coupling element 22 in the axial direction 90 .

The first nut half 18 also has a projection 50. The projection 50 is arranged on the side of the first nut half 18 facing the second nut half 20 and extends in the axial direction in the direction of the second nut half. nut 20. The projection 50 is configured with rotational symmetry with respect to the axis of rotation 15.

The first nut half 18 also has a receptacle 52 for the square bar 46. The receptacle 52 is arranged on the side of the first nut half 18 facing away from the second nut half 20. The receptacle 52 is formed as square recess, whose center is the axis of rotation 15.

The first nut half 18 also has an annular groove 54. The annular groove 54 is arranged in the radial direction 92 between the housing 52 and the outer radial edge of the first nut half 18. In the assembled state of the coupling device 10 , shown in figures 1 to 3, the other spring unit 38 is inserted in the annular groove 54.

The first nut half 18 furthermore has a first recess 56 and a second recess 58. The first recess 56 and the second recess 58 each extend in the circumferential direction 94 in the form of a slit along the radially outer edge of the shell. first nut half 18. The first recess 56 and the second recess 58 are arranged offset from each other in the circumferential direction 94 and in the axial direction 90 . The first recess 56 and the second recess 58 each extend in the radial direction 92 from the annular groove 54 to the outer radial edge of the first nut half 18. The first recess 56 and the second recess 58 form an opening, through which in each case one end of the other spring unit 38 is guided out of the annular groove 54.

Figure 6 shows the second walnut half 20 in a first isometric view (A) and a second isometric view (B). The first isometric view (A) shows the side of the second walnut half 20 directed in the opposite direction to the first walnut half 18. The second isometric view (B) shows the side of the second walnut half 20 directed towards the first half of walnut 18.

The second nut half 20 is essentially rotationally symmetrical about the axis of rotation 15. The second nut half 20 has a groove 60 on the radially outer edge. The slot 60 extends in the axial direction 90 . Slot 60 has a constant width in the circumferential direction 94. The width of slot 60 corresponds essentially to the width of slot 48. Preferably slot 60 is at least as wide as slot 48. In particular slot 60 is as width of the slot 48. The width of the slot 60 thus also essentially corresponds to the width of the coupling element 22 in the circumferential direction 94.

In the assembled state of the coupling device 10, shown in FIGS. 1 to 3, the coupling element 22 is guided in the groove 60 in the axial direction 90 and can move substantially without play when the first nut half 18 and the second nut halves 20 are arranged in the first rotation position 120.

The slot 60 has a constant height in the radial direction 92 . The height of the groove 60 corresponds to the height of the groove 48. The height of the groove 60 thus essentially also corresponds to the height of the coupling element 22 in the radial direction 92 .

Slot 60 has a length in the axial direction 90 . The length of the groove 60 is less than a length of the coupling member 22 in the axial direction 90 .

The second nut half 20 also has a seat 62 for a square bar, in particular an internal shaft. The receptacle 62 is arranged on the side of the second nut half 20 facing away from the first nut half 18. The receptacle 62 is designed as a square recess, the center of which is the axis of rotation 15.

The second nut half 20 also has a depression 64. The depression 64 is arranged on the side of the second nut half 20 facing the first nut half 18 and extends in the axial direction 90 away from the first nut half. 18. The depression 64 is configured rotationally symmetric about the axis of rotation 15. The depression 64 is configured complementary to the projection 50 of the first nut half 18 and forms a receptacle for the projection 50 and the bearing washer 42. An extension of the depression 64 in the axial direction 90 is preferably designed such that the first nut half 18 and the second nut half are not in contact with each other in the axial direction outside the washer area 42. In the assembled state of the coupling device 10, shown in FIGS. 1 to 3, the bearing washer 42 and the projection 50 are arranged in the depression 64, so that the first nut half and the second nut halves can rotate relative to each other in the circumferential direction 94 and are engaged in the radial direction 92 .

Figure 7 shows the coupling element 22 in an isometric view. The coupling element 22 extends in the axial direction 90 .

The coupling element 22 has a constant width in the circumferential direction 94. The width of the coupling element 22 corresponds essentially to the width of the groove 48 in the first nut half 18 and the width of the groove 60 in the second nut half. nut 20 in the circumferential direction 94.

The coupling element 22 has a height in the radial direction 92 . The height of the coupling element 22 corresponds essentially to the height of the groove 48 in the first nut half 18 and the height of the groove 60 in the second nut half 20 in the radial direction 92 .

The coupling element 22 has a length in the axial direction 90 . The length of the coupling element 22 is less than or equal to the length of the groove 48 in the first nut half 18 and greater than the length of the groove 60 in the second nut half 20 in the axial direction 90 .

The coupling element 22 has a projection 66. The projection 66 is disposed in the center of the extension of the coupling element in the axial direction 90 . The projection 66 is further disposed at the center of the extension of the coupling member in the circumferential direction 94. The projection 66 has a width in the axial direction 90 and a length in the circumferential direction 94.

Figure 8 shows the drive member 24 in a plan view (A) of an underside of the drive member 24, in a first isometric view (B) and in a second isometric view (C). The lower side of the drive element 24 corresponds to the side of the drive element 24 facing the coupling element 22.

The drive element 24 has a groove 68 on the underside. Slot 68 extends in circumferential direction 94 from a first end 70 to a second end 72. First end 70 and second end 72 are open.

The groove 68 has a groove profile 74 in the axial direction 90 . The groove profile 74 has a central segment 76, which is arranged between the first end 70 and the second end 72. A width of the groove profile 74 in the axial direction 90 at the first end 70 and at the second end 72 is greater than a width of the groove profile 74 in the central segment 76. The width of the groove profile extends from the first end 70 and from the second end 72 in each case towards the central segment 76 with a constant slope. In particular, the groove profile 74 is configured mirror-symmetrically in the axial direction 90 . In particular, the groove profile 74 is also mirror-symmetrically shaped in the circumferential direction 94 .

The width of the groove profile 74 in the central segment 76 is greater than or equal to, in particular essentially equal to, the width of the projection 66 of the coupling element 22. Thus, the coupling element 22 and the drive element 24 can be coupled, when the projection 66 of the coupling element 22 is disposed in the central segment 76 of the groove 68 of the drive element 24. The projections 66 of the coupling element 22 is disposed in the central segment 76, when the first nut half 18 is arranged in the first position of rotation 120.

The width of the groove profile 74 at the first end 70 and at the second end 72 is greater than or equal to the sum of the width of the projection 66 of the coupling element 22 and the axial displacement of the coupling element 22 between the position of coupling 126 and disengagement position 124.

The drive element 24 furthermore has a receptacle 78 for the second end of the spring unit 26. The receptacle 78 is arranged on the side of the drive element 24 facing away from the coupling element 22. The receptacle is preferably configured as buttonhole.

Figure 9 shows a schematic view of a procedure 100 for coupling. Procedure 100 shows the coupling of the coupling device 10 of Figures 1 to 8 with a rotated state as the initial position.

In a first step 102 of the method 100, the coupling device 10 is provided.

In a further step 104 of the method 100 the coupling element 22 is brought into the uncoupling position 124, in which the first nut half 18 and the second nut half 20 are uncoupled. The first nut half 18 is further arranged in the second rotational position 122, in which the drive element 24 is disengaged from the coupling element 22 in the axial direction 90 .

In a further step 106 of the method 100 the driving element 24 is moved through the actuator 28 in the axial direction 90 . Preferably, the drive element 24 is biased via the actuator 28 by the spring unit 26 in the axial direction 90 into a second position 130, the drive element 24 being able to engage in the second position 130 with the coupling element 22 in the opposite position. docking position 126.

In a further step 108 of the method 100 the first nut half 18 is rotated from the second rotation position 122 to the first rotation position 120, in which the drive element 24 is engaged with the coupling element 22 in the direction 90 axial. In this regard, preferably the drive element 24 moves in the axial direction 90 from the second position 130 to the first position 128, in which the drive element 24 can engage with the coupling element 22 in the disengaging position 124. , whereby the spring unit 26 is tensioned via the drive element 24 in the direction of the second position 130.

In a further step 110 of the method 100, the coupling element 22 is moved in the axial direction 90 from the uncoupling position 124 to the coupling position 126, in which the first nut half 18 and the second nut half 20 are coupled. in the circumferential direction 94 in a rotation-resistant manner. In this connection, the drive element 24 is preferably moved by a biasing force of the spring unit 26, directed towards the second position 130, in the axial direction 90 from the first position 128 to the second position 130, whereby the drive element 24 moves the coupling element 22 from the uncoupling position 124 to the coupling position 126.

Process steps 102 to 110 of process 100 are preferably performed consecutively.

FIGS. 10 to 15 show the coupling device 10 in different procedural states of the method 100 for coupling.

Figure 10 shows an isometric view of the coupling device 10 of Figures 1 to 4. The perspective of the isometric view has been selected such that the second nut half 20 is arranged in front of the first nut half 18.

In FIG. 10, the first nut half 18 and the second nut half 20 are arranged in the first rotational position 120. In this case, the other spring unit 38 biases the first nut half 18 in the first rotational position. 120. When the first nut half 18 moves away from the first pivot position 120 in the circumferential direction 94, the other spring unit 38 accumulates a biasing force directed toward the first pivot position 120.

A spring unit can also be provided for the second walnut half 20, which biases the second walnut half 20 in the first rotational position 120. Thus, the arrangement of the two walnut halves 18, 20 in the first position of rotation 120 represents a prestressed and neutral state.

Also, in Fig. 10, the engaging member 22 is disposed in the disengaging position 124. The engaging member 22 is engaged with the drive member 24. Therefore, the drive member 24 is disposed in the first position 128. In this connection, the movement transmission element 30 is arranged in such a way that the spring unit 26 biases the drive element 24 in the first position. For this, the first spring pin 27' is arranged in the first pin position 87'.

From the arrangement of the coupling device 10 in Figure 10, in Figure 11 the first nut half 18 has rotated from the first rotational position 120 to the second rotational position 122. Consequently, the first nut half 18 is arranged in the second pivot position 122, while the second nut half 20 is further arranged in the first pivot position 120.

The rotational movement of the first wing nut half 18 from the first swivel position 120 to the second swivel position 122 can take place, for example, via a drive element of a door fitting coupled with the first wing half. nut 18. In this connection, the actuating element can be arranged in particular on the outside of a door and be configured as a knob or latch.

Since the first nut half 18 is disposed in the second rotational position 122, the drive element 24 and the coupling element 22 are decoupled in the axial direction 90 .

In FIG. 12, the isometric view perspective of the coupling device 10 has been rotated. In this connection, the isometric view perspective has been selected such that now the first nut half 18 is arranged in front of the second nut half. nut 20. The rotated position allows a better viewing angle of the coupling element 22.

Starting from the arrangement of the coupling device 10 of FIG. 11, in FIG. 12 the driver 24 has been moved through the actuator 28 in the axial direction 90 from the first position 128 to the second position. To do this, the drive unit 32 of the actuator 28 moves the movement transmission element 30 of the actuator 28 from the first state 86A through the second state 86B to the third state 86C, as shown, for example, in views (A) , (B) and (C) of Figure 24, so that the first spring pin 27' moves from the first pin position 87' to the second pin position 87", whereby the spring unit is pretensioned to the second position 130. Since the drive element 24 can move freely in the 90 axial direction, the drive element 24 is moved through the actuator 28 by the spring unit 26 in the 90 axial direction to the second position 130 The spring unit 26 is in Figure 12 in a relaxed state.

Starting from the arrangement of the coupling device 10 of Fig. 12, in Fig. 13 the first nut half 18 has rotated from the second pivot position 122 in the direction of the first pivot position 120 in the circumferential direction 94. Thus, the first nut half 18 is disposed between the first turning position 120 and the second turning position 122.

In the intermediate state shown in Fig. 13, the projection 66 of the coupling member 22 engages with the groove 68 of the drive member 24.

Starting from the arrangement of the coupling device 10 in FIG. 13, in FIG. 14 the first nut half 18 has rotated back into the first rotational position 120. Now the drive element 24 is arranged in the first position 128 The drive member 24 is engaged with the coupling member 22 in the axial direction 90 .

By turning the first nut half 18 from the second turning position 122 to the first turning position 120, the driving element 24 moves from the second position 130 to the first position 128. In this connection, the driving element coupling 22 is locked in the 90 axial direction, because the first nut half 18 and the second nut half 20 have been rotated relative to each other and thus the slots 48 and 60 of the two nut halves 18, 20 do not line up each. The driver 24 is not locked in the axial direction and thus can move in the axial direction 90 .

The rotational movement of the first nut half 18 and the second nut half 20 can be produced by the pretensioning force or the restoring force of the other spring unit 38, which, as described above, prestresses the first nut half. nut 18 in the direction of the first position of rotation 120.

In the rotational movement of the first nut half 18 from the second rotational position 122 to the first rotational position 120, once the projection 66 of the coupling element 22 engages with the groove 68 of the drive element 24, the projection 66 is guided along the groove profile 74 of the groove 68 to the central segment 76 of the groove profile 74. In this way the drive element 24 is moved from the second position 130 to the first position 128.

By axial movement of the driver 24 from the second position 130 to the first position 128, the end of the spring unit 26 engaged with the driver 24 also moves in the axial direction, so that the spring unit 26 is tensioned in the direction of the second position 130. In other words, the energy store of the spring unit 26 is loaded by the axial movement of the drive element 24.

In Figure 15 the isometric view perspective of the coupling device 10 is again rotated. In this respect, the perspective of the isometric view has been selected in such a way that now the second nut half 20 is again arranged in front of the first nut half 18 as in figure 10. The rotated position allows a better angle of view. view of coupling element 22.

Starting from the arrangement of the coupling device 10 in Figure 14, in Figure 15 the coupling element 22 has been moved to the coupling position 126. The drive element 24 has been arranged in the second position 130.

In the state of Figures 14 and 15, the first nut half 18 and the second nut half 20 are arranged in the first rotational position 120. Thus, the grooves 48 and 60 of the two nut halves 18, 20 are arranged in an aligned manner, so that the coupling element 22 can move in the axial direction 90 . As described above, in the state of Fig. 14 the spring unit 26 is stressed in the direction of the second position 130. Since the coupling element 22 can now move in the axial direction 90, the coupling element 22 moves by the biasing force of the spring unit 26 via the drive element 24 into the coupling position 126. In this case, the drive element 24 moves into the second position 130.

Figure 16 shows a schematic view of a procedure 140 for decoupling. Procedure 140 shows the disengagement of the coupling device 10 of FIGS. 1-8 with a rotated state as the initial position.

In a first step 142 of the method 140, the coupling device 10 is provided.

In a further step 144 of the method 140 the coupling element 22 is brought into the coupling position 126, in which the first nut half 18 and the second nut half 20 are coupled in the circumferential direction 94 in a rotation-resistant manner. The first nut half 18 and the second nut half are further arranged in the second rotational position 122, in which the drive element 24 is disengaged from the coupling element 22 in the axial direction 90 .

In a further step 146 of the method 140 the driver 24 is moved through the actuator 28 in the axial direction 90 . Preferably, the drive element 24 is prestressed via the actuator 28 by the spring unit 26 in the axial direction 90 to a first position 130, the drive element 24 being able to engage in the first position 130 with the coupling element 22 in the opposite position. uncoupling position 124.

In another step 148 of the method 140 the first nut half 18 and the second nut half 20 are rotated from the second rotation position 122 to the first rotation position 120, in which the drive element 24 is engaged with the element coupling 22 in the axial direction 90 . In this regard, preferably the drive member 24 moves in the axial direction 90 from the first position 128 to the second position 130, in which the drive member 24 can engage with the engaging member 22 in the engaging position 126. , whereby the spring unit 26 is stressed via the drive element 24 in the direction of the first position 130.

In a further step 150 of the method 140, the coupling element 22 is moved in the axial direction 90 from the coupling position 126 to the decoupling position 124, in which the first nut half 18 and the second nut half 20 are uncoupled. in the circumferential direction 94. In this connection, the entraining element 24 is preferably moved by a biasing force of the spring unit 26, directed towards the first position 128, in the axial direction 90 from the second position 130 to the first position 128, whereby the driver 24 moves the coupling element 22 from the coupling position 126 to the disengaging position 124.

Process steps 142 to 150 of process 140 are preferably performed consecutively.

FIGS. 17 to 22 show the coupling device 10 in different procedural states of the method 140 for coupling.

Figure 17 shows an isometric view of the coupling device 10 of Figures 1 to 4. The perspective of the isometric view has been selected such that the second nut half 20 is arranged in front of the first nut half 18.

In FIG. 17, the first nut half 18 and the second nut half 20 are arranged in the first rotational position 120. In this case, the other spring unit 38 biases the first nut half 18 in the first rotational position. 120. When the first nut half 18 moves away from the first pivot position 120 in the circumferential direction 94, the other spring unit 38 accumulates a biasing force directed toward the first pivot position 120.

A spring unit can also be provided for the second walnut half 20, which biases the second walnut half 20 in the first rotational position 120. Thus, the arrangement of the two walnut halves 18, 20 in the first position of rotation 120 represents a prestressed and neutral state.

Also, in Fig. 17 the engaging member 22 is disposed at the engaging position 126. The engaging member 22 is engaged with the drive member 24. Accordingly, the drive member 24 is disposed at the second position 130. In this case, the movement transmission element 30 is arranged in such a way that the spring unit 26 biases the driving element 24 into the second position 130. For this, the first spring lug 27' is arranged in the second position. pin 87”.

Starting from the arrangement of the coupling device 10 of Figure 17, in Figure 18 the first nut half 18 and the second nut half 20 have been rotated from the first rotation position 120 to the second rotation position 122. Accordingly, the first nut half 18 and the second nut half 20 are disposed in the second rotational position 122.

The rotational movement of the first wing nut half 18 from the first swivel position 120 to the second swivel position 122 can take place, for example, via a drive element of a door fitting coupled with the first wing half. nut 18. In this connection, the actuating element can be arranged in particular on the outside of a door and be configured as a knob or latch.

Since the first nut half 18 and the second nut half 20 are disposed in the second rotational position 122, the drive member 24 and the coupling member 22 are disengaged in the axial direction 90 .

In Figure 19 the isometric view perspective of the coupling device 10 has been slightly rotated. In this respect, the perspective of the isometric view has been selected in such a way that in addition the second nut half 20 is arranged in front of the first nut half 18. The rotated position allows a better viewing angle of the coupling element 22.

Starting from the arrangement of the coupling device 10 in FIG. 18, in FIG. 19 the drive element 24 has been moved through the actuator 28 in the axial direction 90 from the second position 130 to the first position 128. For this , the drive unit 32 of the actuator 28 moves the motion transmission element 30 of the actuator 28 from the third state 86C through the fourth state 86D to the first state 86A, as shown, for example, in views (A), ( B) and (C) of Fig. 24, so that the first spring pin 27' moves from the second pin position 87" to the first pin position 87', whereby the spring unit is prestressed towards the first position 128. Since the drive member 24 is free to move in the 90 axial direction, the drive member 24 is moved through the actuator 28 by the spring unit 26 in the 90 axial direction to the first position 128. spring unit 26 is located in fig ura 19 in a relaxed state.

Starting from the arrangement of the coupling device 10 of Fig. 19, in Fig. 20 the first nut half 18 and the second nut half 20 have been rotated from the second rotation position 122 in the direction of the first rotation position. rotation 120 in the circumferential direction 94. Thus, the first nut half 18 is disposed between the first rotation position 120 and the second rotation position 122.

In this intermediate state shown in figure 20 the projection 66 of the coupling element 22 engages with the groove 68 of the drive element 24.

Starting from the arrangement of the coupling device 10 in FIG. 20, in FIG. 21 the first nut half 18 has rotated back into the first pivot position 120. Now the drive element 24 is arranged in the second position 130. The drive member 24 is engaged with the coupling member 22 in the axial direction 90 .

By rotating the first nut half 18 and the second nut half 20 from the second rotation position 122 to the first rotation position 120, the driver 24 moves from the first position 128 to the second position 130. A In this respect, the coupling element 22 is locked in the axial direction 90, because during the turning movement a torque is transmitted between the first nut half 18 and the second nut half 20 via the coupling element 22. In this way a static friction is produced on the force transmission surfaces between the coupling element 22 and the two nut halves 18, 20 which prevents the coupling element 22 from being able to move in the axial direction. The driver 24 is not locked in the axial direction and thus can move in the axial direction 90 .

The rotational movement of the first nut half 18 and the second nut half 20 can be produced by the pretensioning force or the restoring force of the other spring unit 38, which, as described above, prestresses the first nut half. nut 18 in the direction of the first position of rotation 120.

In the rotational movement of the first nut half 18 and the second nut half 20 from the second rotation position 122 to the first rotation position 120, once the projection 66 of the coupling element 22 engages with the groove 68 of the drive element 24, the projection 66 is guided along the groove profile 74 of the groove 68 to the center segment 76 of the groove profile 74. In this way the drive element 24 is moved from the first position 128 to the second position 130.

By axial movement of the drive element 24 from the first position 128 to the second position 130, the end of the spring unit 26 engaged with the drive element 24 also moves in the axial direction 90, so that the spring unit The spring 26 is tensioned in the direction of the first position 128. In other words, the energy store of the spring unit 26 is charged by the axial movement of the drive element 24.

In Figure 22 the isometric view perspective of the coupling device 10 is again rotated. In this regard, the perspective of the isometric view has been further selected in such a way that the second nut half 20 is arranged in front of the first nut half 18. The rotated position allows a better viewing angle of the coupling element 22.

Starting from the arrangement of the coupling device 10 in FIG. 21, in FIG. 22 the coupling element 22 has been moved to the uncoupling position 124. The drive element 24 is arranged in the first position 128.

In the state of Figs. 21 and 22, the first nut half 18 and the second nut half 20 are arranged in the first rotational position 120. Thus, the grooves 48 and 60 of the two nut halves 18, 20 are arranged in an aligned manner and no longer acting torques, so that the coupling element 22 can move in the axial direction 90 . As described above, in the state of Fig. 21 the spring unit 26 is stressed in the direction of the first position 128. Since the coupling element 22 can now move in the axial direction 90, the coupling element 22 moves by the biasing force of the spring unit 26 via the drive element 24 into the disengagement position 124. In this case, the drive element 24 moves into the first position 128.

Claims (15)

1. Coupling device (10) for a door fitting, with a coupling module (14) and an actuation module (16), the coupling module (14) presenting a first nut half (18), a second nut half (20) and a coupling element (22), the actuation module (16) having a drive element (24), a spring unit (26) and an actuator (28), the first half being mounted nut (18) and the second nut half (20) so that they can rotate about a rotation axis (15) in each case between a first rotation position (120) and a second rotation position (122) in a circumferential direction (94), the coupling member (22) being movable in an axial direction (90) between an engagement position (126) and a disengagement position (124), the first nut half (18) and the second nut half (20) in the coupling position (126) by means of the coupling element (22) in a twist-resistant manner or in the circumferential direction (94), the first nut half (18) and the second nut half (20) being uncoupled at the uncoupling position (124) by the coupling element (22) in the circumferential direction (94). ), the actuator (28) being coupled with the drag element (24) by means of the spring unit (26), the drag element (24) being able to move in the axial direction (90), characterized in that the drag element (24) is engaged with the coupling member (22) in the axial direction (90), when a nut half (18, 20) engaged with the coupling member (22) is arranged in the first rotational position (120). ), and in that the drive member (24) is disengaged from the coupling member (22) in the axial direction (90), when a nut half (18, 20) engaged with the coupling member (22) is arranged in the second turning position (122). Coupling device (10) according to Claim 1, characterized in that the first nut half (18) and the second nut half (20) each have a groove (48, 60) arranged radially on the outside, which it extends in the axial direction (90) and in which the coupling element (22) is guided. Coupling device (10) according to claim 1 or 2, characterized in that the first nut half (18) and the second nut half (20) are arranged side by side in the axial direction (90). Coupling device (10) according to one of Claims 1 to 3, characterized in that the coupling element (22) has a projection (66) arranged radially on the outside, the drive element (24) having a groove (68). ) arranged radially inside, and the projection (66) engaging in the groove (68), when the nut half (18) coupled with the coupling element (22) is arranged in the first rotation position (120), to engaging the drive member (24) with the coupling member (22) in the axial direction (90), and the groove (68) extending in the circumferential direction (94). 5. Coupling device (10) according to claim 4, characterized in that the groove (68) has at least a first end (70) and a second end (72), the first end (70) being open in the circumferential direction (94), in particular the second end (72) being open in the circumferential direction (94) and being disposed opposite the first end (70) on the driver (94). Coupling device (10) according to one of Claims 1 to 5, characterized in that the driving element (24) is guided in the axial direction (90). Coupling device (10) according to one of Claims 1 to 6, characterized in that the drive element (24) can be prestressed via the actuator (28) by means of the spring unit (26) in the axial direction (90). ) optionally to a first position (128) or to a second position (130), being able to couple the drive element (24) in the first position (128) with the coupling element (22) in the uncoupling position (124) and in the second position (130) with the coupling element (22) in the coupling position (126). Coupling device (10) according to one of Claims 1 to 7, characterized in that the drive element (24) can be moved by a biasing force of the spring unit (26) in the axial direction (90), when the nut half (18, 20) coupled with the coupling element (22) is arranged in each case in the first swivel position (120) or the second swivel position (122), in particular the coupling element can be moved drive (24) by means of a pretensioning force of the spring unit (26) optionally to the first position (128) or to the second position (130). Coupling device (10) according to one of Claims 1 to 8, characterized in that the spring unit (26) can be tensioned by a movement of the nut half (18, 20) coupled with the coupling element (22). ) from the second rotational position (122) to the first rotational position (120) through the drive element (24) in the axial direction (90). Coupling device (10) according to one of Claims 1 to 9, characterized in that the spring unit (26) is designed as a pin spring, with a first spring pin (27') of the spring unit being coupled (26) with the actuator, a second spring lug (27") being coupled with the drive element, the first spring lug (27') being movable by the actuator (28) between a first lug end position ( 87') and a second pin end position (87"). Door hardware system with the coupling device (10) according to one of Claims 1 to 10. 12. Method (100) for coupling a coupling device (10), the method having the following steps: - providing (102) the coupling device (10) with a coupling module (14) and an actuation module (16), the coupling module (14) having a first nut half (18), a second nut half (20) and a coupling element (22), the actuation module (16) presenting a drive element (24), a spring unit (26) and an actuator (28), the first nut half ( 18) and the second nut half (20) so that they can rotate in each case about a rotation axis (15) between a first rotation position (120) and a second rotation position (122) in a circumferential direction ( 94), the actuator (28) being coupled with the driving element (24) by means of the spring unit (26); - arranging (104) the coupling element (22) in an uncoupling position (124), in which the first nut half (18) and the second nut half (20) are uncoupled in the circumferential direction (94) , a nut half (18, 20) engaged with the coupling element (22) being arranged in the second rotational position (122), in which the drive element (24) is disengaged from the coupling element (22) in an axial direction (90); - moving (106) the driving element (24) through the actuator (28) in the axial direction (90); - turning (108) the nut half (18, 20) coupled with the coupling element (22) from the second rotation position (122) to the first rotation position (120), in which the drive element ( 24) is engaged with the coupling element (22) in the axial direction (90); - displacing (110) the coupling element (22) in the axial direction (90) from the uncoupling position (124) to a coupling position (126), in which the first nut half (18) and the second Nut halves (20) are rotatably coupled in the circumferential direction (94). Method (100) according to claim 12, characterized in that in the movement stage (106) the driving element (24) is prestressed via the actuator (28) by means of the spring unit (26) in the axial direction. (90) to a second position (130), the drive element (24) in the second position (130) being engageable with the coupling element (22) in the coupling position (126); in particular in the turning stage (108) the drive element (24) moves in the axial direction (90) from the second position (130) to a first position (128), in which the drive element (24) can engage with the coupling element (22) in the uncoupling position (124), whereby the spring unit (126) is tensioned via the drive element (24) in the direction of the second position (130) ; in particular in the displacement stage (110) the drive element (24) is moved by a biasing force of the spring unit (26) directed towards the second position (130) in the axial direction (90) of the first position (128) to the second position (130), whereby the driver (24) moves the coupling element (22) from the uncoupling position (124) to the coupling position (126). 14. Method (140) for uncoupling a coupling device, the method having the following steps: - providing (142) to the coupling device (10) a coupling module (14) and an actuation module (16), the coupling module (14) having a first nut half (18), a second nut half (20) and a coupling element (22), the actuation module (16) presenting a drive element (24), a spring unit (26) and an actuator (28), the first nut half ( 18) and the second nut half (20) so that they can rotate about a rotation axis (15) between a first rotation position (120) and a second rotation position (122) in a circumferential direction (94), the actuator (28) being coupled with the driving element (24) by means of the spring unit (26); - arranging (144) the coupling element (22) in a coupling position (126), in which the first nut half (18) and the second nut half (20) are coupled in a rotation-resistant manner in the circumferential direction (94), the first nut half (18) and the second nut half (20) being arranged in the second rotational position (122), in which the drive element (24) is disengaged from the drive element. coupling (22) in an axial direction (90); - moving (146) the driving element (24) through the actuator (28) in the axial direction (90); - turning (148) the first nut half (18) and the second nut half (20) from the second rotation position (122) to the first rotation position (120), in which the driving element (24 ) is engaged with the coupling element (22) in the axial direction (90), - displacing (150) the coupling element (22) in the axial direction (90) from the coupling position (126) to a disengaging position (124), in which the first nut half (18) and the second nut halves (20) are decoupled in the circumferential direction (94). Method (140) according to claim 14, characterized in that in the movement stage (146) the driving element (24) is prestressed via the actuator (28) by means of the spring unit (26) in the axial direction. (90) to a first position (128), the drive member (24) in the first position (128) being engageable with the coupling member (22) in the uncoupling position (124); in particular in the turning stage (148) the drive element (24) moves in the axial direction (90) from the first position (128) to a second position (130), in which the drive element (24) can be engaged with the coupling element (22) in the coupling position (126), whereby the spring unit (26) is tensioned via the drive element (24) in the direction of the first position (128) ; in particular in the displacement stage (150) the drive element (24) is moved by a biasing force of the spring unit (26) directed towards the first position (128) in the axial direction (90) of the second position (130) to the first position (128), whereby the driver (24) moves the coupling element (22) from the coupling position (126) to the disengaging position (124).