EP3740638B1 - Functional unit - Google Patents

Description

• einen Grundkörper,
• ein gegenüber diesem verstellbares Kopplungselement, wobei der Grundkörper zur Befestigung am Blendrahmen ausgebildet ist und das verstellbare Kopplungselement mit dem Flügel gekoppelt oder koppelbar ist, oder umgekehrt,
• einen Antrieb zum motorischen Verstellen des Kopplungselements entlang eines Stellwegs derart, dass im montierten Zustand der Funktionseinheit der mit dem Kopplungselement gekoppelte Flügel in Richtung des Blendrahmens bewegbar ist, und
• eine Steuereinrichtung zum Steuern des Antriebs, welche dazu ausgebildet ist, für einen Einklemmschutz wenigstens eine Sicherheitsfunktion bereitzustellen.

The present invention relates to a functional unit of a fitting for a component, in particular for a window or a door, wherein the component has a frame and a sash that is movable relative to the frame, the functional unit comprising:

• a basic body,
• a coupling element that is adjustable relative to this, the base body being designed for attachment to the frame and the adjustable coupling element being coupled or capable of being coupled to the sash, or vice versa,
• a drive for motor-driven adjustment of the coupling element along an adjustment path such that in the assembled state of the functional unit, the wing coupled to the coupling element can be moved in the direction of the frame, and
• a control device for controlling the drive, which is designed to provide at least one safety function for anti-pinch protection.

Such functional units are known in different designs, each of which is intended for different purposes, such as for automatically opening and closing a wing, for automatically locking a closed wing or for automatically tilting or parking a wing. For example, functional units of the type specified at the beginning are used as fitting components of rotary fittings, tilt fittings and turn-tilt fittings for windows, doors, gates, flaps and the like.

The coupling of the coupling element with the wing is not only to be understood in the sense of a permanent or detachable fastening, but also in the sense of a pulling or pushing action, whereby the coupling element takes the wing with it. This means that the coupling can only be effective in one direction.

Motor-driven wings of building elements always pose a risk of limbs becoming trapped, and measures must generally be taken to prevent this. This can be done, for example, by limiting the driving force to a safe level via the control system. The associated control device can provide one or more of these safety functions.

However, appropriate protective measures prevent the sash from being closed and/or held securely and reliably. As a result, the thermal insulation effect of the component in question may be limited in an undesirable way.

The EP 3 235 992 A1 discloses an electrically operated roof window in which the closing force is monitored during the closing process. If this increases to an unacceptable level, the closing process is reversed. After a waiting period, the sash is then finally closed, using a higher closing force threshold value.

In the EP 3 263 814 A1 A window control is disclosed in which a drive reversal is triggered when a trapped object is detected. When the closing body is close to the final closed position, the relevant safety function is deactivated.

The DE 94 22 247 U1 discloses a motor-driven revolving door on which sensors are mounted to monitor the rotation range. One of the sensors is tilted so that it covers the main closing edge of the door leaf. The activity of the sensor during the closing movement of the door leaf is switched off before it reaches the door frame.

The CH 694510 A5 discloses a window with an arrangement of electromagnetic closures, each of which is based on the engagement of a movable locking element in a fixed locking element, the movable locking element being movable back and forth in a direction transverse to the profile and the fixed locking element having an incline.

It is an object of the invention to enable a more reliable closing and holding of motor-driven wings of building elements without impairing the anti-pinch protection.

The problem is solved by a functional unit with the features of claim 1.

The control device of a functional unit according to the invention is designed to provide the at least one safety function only during a first section of the travel path, but to deactivate it during a subsequent second section of the travel path in order to provide a contact pressure for a sealing engagement between the sash and the frame.

When the safety function is deactivated, the drive can pull or push the sash against the frame unhindered and with the greatest possible force. When the sash is closed, the window in question therefore has improved tightness. There is still protection against trapping, as the path of the sash that corresponds to the first section of the travel of the coupling element is secured in the usual way via the drive control. The first and second sections of the travel can be determined taking into account the mechanical conversion of the movement of the coupling element into the movement of the sash in such a way that the risk of trapping is reduced or even eliminated during the movement of the sash that corresponds to the second section of the travel of the coupling element.

In particular, it can be provided that the coupling element is adjustable between an open position, which corresponds to a sash that has been moved away from the frame or to a released sash, and a closed position, which corresponds to a sash that is kept completely closed, the second section of the adjustment path being an end section assigned to the closed position . In this embodiment, the main part of the closing movement of the sash is protected by the safety function and the safety function is only deactivated at the end of the closing process. In this phase of the sash movement there is no longer any risk of entrapment because the sash is already almost completely closed.

The second section of the travel path can have a travel length of no more than 40% and preferably no more than 25% of the total travel length of the travel path. Thus, the majority of the wing movement takes place in the secured state.

A special embodiment of the invention provides that in the assembled state of the functional unit there is a formed between the frame and the sash Gap has a width of 20 mm or less, preferably 10 mm or less and particularly preferably 8 mm or less, when the coupling element is located at a transition from the first section of the travel path to the second section of the travel path. No limbs can get into such a narrow gap, so there is no risk of entrapment and the safety function can be easily deactivated. The gap can be the gap that exists between a closing edge of the sash and an opposite section of the frame.

There are various ways to implement a safety function by controlling the drive. In particular, the control device can be designed to instruct partial load operation of the drive in order to provide the safety function and/or to trigger an emergency shutdown of the drive in the event of resistance to the movement of the wing.

According to an aspect of the disclosure that is not part of the invention, the functional unit is an opener/closer unit which, in the assembled state, is designed to automatically open and close the sash at least during an automatic phase. In particular, such an opener/closer unit can be a door drive for completely opening and closing the leaf. However, the coupling element of the opener/closer unit can also be detachably coupled, in particular latched, to the sash or the frame and can be moved by means of the drive between a retracted position and an extended position. It is then not necessary to move the sash to the fully open state using the drive of the opener/closer unit. Rather, it can be provided that the sash is only opened a gap during an automatic phase using the opener/closer unit and then the coupling of the actuating element to the sash or the frame is released, so that the user can carry out the further opening by hand can.

According to a further aspect of the disclosure not belonging to the invention, the functional unit is a bearing unit which, in the assembled state, is designed to rotatably support the sash on the frame, wherein the base body is a first bearing part designed to be attached to the frame and the coupling element is a second bearing part designed to be attached to the sash, and wherein, in the assembled state of the functional unit, the second bearing part can be displaced by means of the drive relative to the first bearing part transversely to the frame plane, preferably by an offset of at least 30 mm. By displacing the bearing parts, the sash can be pushed away from the frame and thus adjusted to a ventilation state. By moving the bearing parts back, the sash can be pulled back towards the frame. A corresponding bearing unit can be used on the one hand to park the sash and on the other hand to tilt the sash. In order to enable tilting, a corresponding range of motion for the tilting movement can be provided.

By setting the hinge-side edge of the sash using several bearing units, the sash can be opened even if the fitting system is concealed. With concealed fittings, the axis of rotation is located within the frame profiles when the sash is closed, so that the profile elements would hit each other if they were not set down beforehand.

According to the invention, the functional unit is a closure unit which, in the assembled state, is designed for releasably fixing the sash on the frame, the coupling element being a closure element which can be moved by means of the drive between a closed position holding the sash on the frame and an open position releasing the sash. Such a locking unit is used for motorized locking and unlocking of the sash.

According to an aspect of the disclosure not belonging to the invention, the locking element can be, for example, a retaining claw that can be pivoted about a pivot axis and is designed for locking engagement with a locking pin or the like. According to the invention, the locking element is a pin that can be moved parallel to the frame plane and that engages in a retaining receptacle when the locking unit is in the assembled state, with a bevel being formed on a wall section of the retaining receptacle, by means of which a movement of the pin that runs parallel to the frame plane can be converted into a movement of the sash that runs transversely to the frame plane when the pin runs into it.

According to the invention it is provided that the pin is adjustable transversely to the direction of displacement in at least one adjustment direction, so that after assembly it can be placed in a desired position for running onto the slope.

A functional unit according to the invention can be provided either for attachment to the frame or for attachment to the sash. However, mounting on the frame is advantageous in that it simplifies the laying of the control and supply lines. Furthermore, the sash frame can be designed to be comparatively narrow, which is visually appealing.

The drive can be designed as an electric motor, magnetic, pneumatic or hydraulic drive. The drive preferably comprises a servo motor. The drive can be arranged on the base body.

A functional unit according to the invention can have a communication device by means of which it can communicate with another functional unit and/or with a central control unit. Several functional units of a fitting can thus be networked with one another.

The invention also relates to a fitting for a component, in particular for a window or a door, with a functional unit as described above.

According to the invention, such a fitting comprises a holding receptacle which comprises a first receiving part designed for fastening to the sash or to the frame and a second receiving part which is adjustable relative to the first receiving part in at least one adjustment direction and on which a receiving opening is formed. Depending on the design, the second receiving part can be adjustable in one or more directions, preferably manually. The adjustable holding receptacle enables the contact pressure to be adjusted in a simple manner.

The invention also relates to a component for closing an opening, in particular a window or a door, with a frame, a sash that is movable relative to the frame and a fitting.

According to the invention, the fitting comprises at least one functional unit as described above.

Further developments of the invention can also be found in the dependent claims, the description and the accompanying drawings.

Fig. 1

ist eine vereinfachte Darstellung eines Fensters, an dem eine Öffner-/Schließer-Einheit angeordnet ist.

Fig. 2

zeigt eine Öffner-/Schließer-Einheit gemäß einer alternativen Ausgestaltung in teilweise aufgeschnittener Ansicht.

Fig. 3

zeigt eine Lagereinheit.

Fig. 4

zeigt eine gemäß einer Ausführungsform der Erfindung gestaltete Verschlusseinheit.

Fig. 5

zeigt eine Halteaufnahme der in Fig. 4 gezeigten Verschlusseinheit im Detail.

Fig. 6

zeigt eine alternativ gestaltete Verschlusseinheit.

The invention is described below by way of example with reference to the drawings.

Fig.1

is a simplified representation of a window on which an opener/closer unit is arranged.

Fig.2

shows an opener/closer unit according to an alternative embodiment in a partially cutaway view.

Fig.3

shows a storage unit.

Fig.4

shows a closure unit designed according to an embodiment of the invention.

Fig.5

shows a holding shot of the Fig.4 shown locking unit in detail.

Fig.6

shows an alternatively designed locking unit.

This in Fig. 1 Window 11 shown has a fixed frame 13 and a wing 15 which can be rotated about an axis of rotation 14. To automatically open and close the sash 15, a functional unit 17 in the form of an opener/closer unit is attached to the frame 13. The functional unit 17 can be integrated into a fitting system that is in Fig. 1 is not shown in more detail.

The functional unit 17 comprises a base body 20 attached to the frame 13 and a coupling element 25 which is adjustable relative to this and has an engagement section 18 which is coupled to the closing edge 27 of the sash 15 remote from the hinge. The coupling can be permanent or detachable. In principle, the base body 20 could also be attached to the wing 15 and the coupling element 25 could be coupled to the frame 13.

A drive 26 for motorized adjustment of the coupling element 25 along a travel path 29 is arranged on the base body 20 of the functional unit 17. Due to the coupling of the engagement section 18 with the wing 15, when the coupling element 25 is motorized relative to the base body 20, the wing 15 is moved in the direction of the frame 13 or in the opposite direction, as indicated by the double arrow 30. The drive 26 preferably comprises a servo motor with an absolute encoder and, if necessary, with an integrated gear. An electrical energy storage device for supplying power to the drive 26 can be integrated into the functional unit 17, which is Fig.1 but is not shown.

To control the drive 26, an electronic control device 33 is provided, which preferably comprises an integrated circuit and is arranged on the base body 20. The electronic control device 33 activates and deactivates the drive 26 depending on control signals and controls or regulates the output power of the activated drive 26.

To protect against limbs becoming trapped in the gap 35 formed between the frame 13 and the sash 15, the electronic control device 33 operates the drive 26 in partial load operation during a first section 41 of the travel 29 and also ensures that if resistance occurs against the Movement of the wing 15 triggers an emergency shutdown of the drive 26. The first section 41 is followed by a second section 42 of the travel path 29. If the coupling element 25 starting from the in Fig. 1 Open position shown has passed the first section 41 of the travel 29 and reaches the second section 42, the electronic control device 33 ensures that the drive 26 works under full load and that no emergency shutdown of the drive 26 is triggered. This operating state with deactivated safety functions is maintained until the end of the travel 29, i.e. until the sash 15 is completely closed. Through this A contact pressure is generated which presses the sash 15 sealingly against the frame 13.

As in Fig.1 As can be seen, the second section 42 of the adjustment path 29 begins near the closed position of the wing 15 and has only a short path length compared to the first section 41. For example, the path length of the second section 42 can be about 25% of the total path length of the adjustment path 29. The division of the adjustment path 29 into the first section 41 and the second section 42 is preferably selected such that the gap 35 has a maximum width of about 8 mm or less when the engagement section 18 of the coupling element 25 is located at the transition 43 from the first section 41 of the adjustment path 29 to the second section 42 of the adjustment path 29. Limbs cannot get into a correspondingly small gap 35, so there is no risk of crushing.

In the Fig. 2 Functional unit 47 shown is also designed as an opener/closer unit and includes a housing 48 which is used for attachment to the frame 13 ( Fig. 1 ) is trained. The housing 48 contains the drive 26, the electronic control device 33 and a spindle drive 50 for converting a rotary movement of the drive 26 into a linear retraction and extension movement of the coupling element 25. The drive 26 can in turn have a servo motor with an absolute encoder and, if necessary, with integrated gearbox. Instead of an arrangement of servo motor and spindle drive 50, a linear motor or the like could also be provided.

At the free end of the coupling element 25 is in Fig. 2 shown embodiment, a snapper 49 forming the engagement section 18 is movably mounted. In a generally known manner, this can be a counter element, not shown, of the wing 15 ( Fig. 1 ) reach behind and detachably connect it to the wing 15. By extending and retracting the coupling element 25, the Wing 15 can be opened and closed automatically during an automatic phase, while the opening and closing is otherwise done manually. In principle, the housing 48 could also be attached to the wing 15 and the snapper 49 could be designed for coupling to the frame 13.

In Fig.3 a further functional unit 57 is shown. This is not designed as an opener/closer unit, but as a bearing unit. The functional unit 57 has a first bearing part 58 designed for direct or indirect attachment to the frame 13 and a second bearing part 59 designed for direct or indirect attachment to the sash 15. The second bearing part 59 is rotatably mounted on a sliding body 62 by means of a pivot bearing 60. The sliding body 62 is fastened to a guide rail 63 which is slidably mounted on the first bearing part 58. By means of a spindle drive 64, the sliding body 62 and with it the second bearing part 59 can be offset relative to the first bearing part 58 by an offset of approximately 60 mm, starting from a basic state in which the first bearing part 58 and the sliding body 62 are adjacent to one another. When the functional unit 57 is assembled, the offset takes place transversely to the frame plane. By appropriately controlling the drive 26 connected to the spindle drive 64, the second bearing part 59 can be set to a parked state and then back to the basic state. When setting back, the deactivation of the safety functions in the second section 42 of the travel path 29 generates a contact pressure. The drive 26 can also comprise a servo motor with an absolute encoder and, if necessary, with an integrated gear in the functional unit 57 designed as a bearing unit. According to an alternative embodiment, the second bearing part 59 is designed for direct or indirect fastening to the frame 13, while the first bearing part 58 is designed for direct or indirect fastening to the sash 15.

A functional unit 67 according to the invention is in Fig. 4 shown. The functional unit 67 shown in perspective is designed as a closure unit and has a housing 68 in which the drive 26 is accommodated. By means of the drive 26, which in turn can include a servo motor with an absolute encoder and optionally with an integrated gear, a locking pin 69 can be moved in and against a displacement direction 70 between a fixing position and a release position. The housing 68 is for attachment to the frame 13 ( Fig. 1 ) educated. In the assembled state of the functional unit 67, the displacement direction 70 points parallel to the frame plane. The locking pin 69 has a circumferential groove 71 at its free end, which, for example, enables positive engagement with a securing arm (not shown). The functional unit 67 is assigned a, for example socket-like, holding receptacle 72 arranged on the wing 15.

When the locking pin 69 is in a retracted release position, it does not engage in the holding receptacle 72 and the functional unit 67 is inactive. When the locking pin 69 is in an extended fixing position, it engages in the holding receptacle 72 and thus fixes the sash 15 to the frame 13. It is understood that the housing 68 can also be designed for fastening to the sash 15, with the holding receptacle 72 being arranged on the sash 15.

In Fig. 5 the holding receptacle 72 is shown in a sectional view. It can be seen that a bevel 74 is formed on the inner wall 73 of the holding receptacle 72, through which, when the locking pin 69 runs parallel to the frame plane, its movement can be converted into a movement of the wing 15 that runs transversely to the frame plane. During the locking process, the sash 15 is pressed against the frame 13 in this way, with the deactivation of the safety functions in turn generating a contact pressure. The holding mount is used to be able to adjust the contact pressure 72 adjustable in at least one direction in and against an adjustment direction 75. For this purpose, the holding receptacle 72 has a first receiving part 91 designed for attachment to the wing 15 and a second receiving part 92 which can be manually adjusted relative to this in and against the adjustment direction 75 and on which the receiving opening 93 is formed.

Fig.6 shows a functional unit 77 which, like the functional unit 67 according to Fig.4 and 5 is designed as a locking unit, but instead of a movable locking pin it has a pivotable retaining claw 78 with a groove 79 that is open on one side. The width of the groove 79 is dimensioned such that a cylindrical locking element 80, which is intended for fastening to the sash 15 or to the frame 13, fits into it. The retaining claw 78 can be moved by a drive 26, which can comprise a servo motor with absolute encoder and, if necessary, integrated gear.

When the retaining claw 78 is in the Fig.6 shown release position, the locking element 80 is not engaged and the wing 15 can be moved freely. By pivoting the retaining claw 78 by means of the drive 26 according to Fig.6 clockwise, it can be moved into a blocking position. In the blocking position, the locking element 80 is blocked and the sash 15 is secured to the frame 13. Deactivation of the safety functions also generates a contact pressure in this embodiment.

Due to the design of the electronic control device 33, each of the functional units 17, 47, 57, 67, 77 described above is able to generate a continuous sealing pressure between the sash 15 and the frame 13, so that a reliable seal of the window 11 is created.

All functional units 17, 47, 57, 67, 77 described above can be designed with an integrated warning function. In this embodiment, the drive 26 has a device for position detection, in particular a device for end position detection. Furthermore, the control device 33 is designed to output a particularly acoustic and/or optical warning signal when the coupling element leaves a predetermined reference position without prior activation of the drive 26. In this case, there is a risk of unauthorized manipulation of the associated component. A corresponding functional unit 17, 47, 57, 67, 77 can advantageously be used as an alarm system.

List of reference symbols:

11

Window

13

Frame

14

Axis of rotation

15

wing

17

Functional unit

18

Intervention section

20

Base body

25

Coupling element

26

drive

27

Closing edge

29

Travel

30

Direction of movement of the wing

33

electronic control device

35

gap

41

first section of the travel

42

second section of the travel

43

crossing

47

Functional unit

48

Housing

49

Snapper

50

Spindle drive

57

Functional unit

58

first bearing part

59

second bearing part

60

Pivot bearing

62

Sliding body

63

Guide rail

64

Spindle drive

67

Functional unit

68

Housing

69

Locking pin

70

Shift direction

71

Nut

72

Holding fixture

73

Interior wall

74

Oblique

75

Adjustment direction

77

Functional unit

78

holding claw

79

Nut

80

Locking element

91

first recording part

92

second recording part

93

Receiving opening

Claims (7)

1. A functional unit (67) of a fitting for a component (11), in particular for a window or a door, wherein the component (11) has a frame (13) and a leaf (15) movable relative to the frame, wherein the functional unit (67) comprises:

   a base body (68);

   a coupling element (69) adjustable relative to the base body (68), wherein the base body (68) is configured for fastening to the frame (13) and the adjustable coupling element (69) is coupled or couplable to the leaf (15), or vice versa;

   a drive (26) for a motorized adjustment of the coupling element (69) along an adjustment path (29) such that, in the assembled state of the functional unit (67), the leaf (15) coupled to the coupling element (69) can be moved towards the frame (13); and

   a control device (33) for controlling the drive (26), said control device (33) being configured to provide at least one safety function for anti-trap protection, wherein

   the control device (33) is configured to provide the at least one safety function only during a first section (41) of the adjustment path (29), but to deactivate it during a subsequent second section (42) of the adjustment path (29), in order to provide a contact pressure for a sealing engagement between the leaf (15) and the frame (13), wherein

   the functional unit (67) is a closure unit which, in the assembled state, is configured to releasably fix the leaf (15) to the frame (13), wherein the coupling element (69) is a closure element which can be moved by means of the drive (26) between a closed position holding the leaf (15) at the frame (13) and an open position releasing the leaf (15), wherein

   the closure element (69) is a pin which is displaceable in parallel with the plane of the frame and which, in the assembled state of the closure unit (67), engages into a holding receiver (72) in the fixing position, wherein, at a wall section (73) of the holding receiver (72), a slope (74) is formed by which a movement of the pin (69) extending in parallel with the plane of the frame can, during a running up of the pin (69), be converted into a movement of the leaf (15) extending transversely to the plane of the frame, and wherein the pin (69) is adjustable transversely to the displacement direction (70) in at least one adjustment direction (75) or the holding receiver (72) is adjustable in at least one direction in and against an adjustment direction (75).
2. A functional unit (10) according to claim 1,
   characterized in that
   the coupling element (69) is adjustable between an open position, which corresponds to a leaf (15) which is moved away from the frame (13) or which is released, and a closed position, which corresponds to a leaf (15) held completely closed, with the second section (42) of the adjustment path (29) being an end section associated with the closed position.
3. A functional unit (10) according to claim 1 or 2,
   characterized in that
   the second section (42) of the adjustment path (29) has a path length of at most 40% and preferably of at most 25% of the total path length of the adjustment path (29).
4. A functional unit (10) according to at least one of the preceding claims, characterized in that,
   in the assembled state of the functional unit (67), a gap (35) formed between the frame (13) and the leaf (15) has a width of 20 mm or less, preferably of 10 mm or less and particularly preferably of 8 mm or less, if the coupling element (69) is located at a transition (43) from the first section (41) of the adjustment path (29) to the second section (42) of the adjustment path (29).
5. A functional unit (10) according to at least one of the preceding claims, characterized in that
   the control device (33) is configured, in order to provide the safety function, to instruct a partial load operation of the drive (26) and/or to trigger an emergency shutdown of the drive (26) if a resistance to the movement of the leaf (15) occurs.
6. A fitting for a component (11), in particular for a window or a door, comprising a functional unit according to any one of the preceding claims, characterized by
   a holding receiver (72) which comprises a first receiving part (91) configured for fastening to the leaf (15) or to the frame (13) and a second receiving part (92) which is adjustable relative to said first receiving part (91) in at least one adjustment direction (75) and at which a receiving opening (93) is formed.
7. A component (11) for closing an opening, in particular a window or a door, comprising a frame (13), a leaf (15) movable relative to the frame (13) and a fitting,
   characterized in that
   the fitting comprises at least one functional unit (67) according to any one of the claims 1 to 5.

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