DRIVE DEVICE FOR A DOOR OR WINDOW SLAB

Description

[0001] The invention relates to a drive device for a leaf of a door, a window or the like, with a drive with a mechanical storage device which is charged by an opening movement of the leaf and discharged with a closing movement of the leaf, at least one electric motor which is operatively connected to the leaf via at least one motor shaft and can be operated as a generator to dampen the leaf movements, and control and / or regulating electronics for controlling the electric motor.

[0002] Drives or door closers for movable door leaves with a mechanical energy storage device and hydraulic damping are well known. When the door leaf is opened manually, the mechanical energy storage device is charged with potential energy, which closes the released door leaf. The mechanical energy storage device can, for example, comprise a spring that is tensioned when the door leaf is opened manually and relaxes again when the door leaf is closed.

[0003] A drive device according to the preamble of claim 1 is known from DE 10 2015 200289 A1.

[0004] In most door constructions on which hydraulic door closers are mounted, danger points arise, particularly on the secondary closing edge, where serious injuries, particularly to the fingers of a user, can occur when the door leaf is automatically closed by the mechanical energy storage device.Fig. 1 The attached drawing shows a schematic representation of examples of such danger zones in the area of ​​secondary closing edges of doors.

[0005] The hydraulic door closers commonly used to date do not have any device to secure danger zones or to prevent injuries in such danger zones.

[0006] US Pat. No. 7,571,515 already describes an obstacle sensor that can be connected to the control system of a hydraulically damped door closer. However, controlling such a hydraulic door closer in the presence of an obstacle is relatively complex and generally not adaptable to the specific situation. US Pat. No. 4,577,437 A describes an automatic drive with a motion sensor. If the motion sensor detects a person or obstacle, the automatic drive stops the door leaf. Furthermore, DE 102 59 925 A1 discloses a drive device with a safety sensor device that can dampen the door leaf movement.

[0007] Regeneratively damped door closers with at least one electric motor that can be operated as a generator are also already known. The motor shaft of the motor is operatively connected to the leaf and the motor terminals of which can be short-circuited via control or regulating electronics to dampen the leaf movements. In addition to a housing and a fitting for connecting the gear unit to the door leaf, such a regeneratively damped door closer also generally includes a spring that acts as a mechanical accumulator. When the door is opened manually, the spring is tensioned, which charges potential energy into the spring. At the same time, when the door is opened, the gear unit assigned to the electric motor rotates. The at least one electric motor is usually a brushed or brushless magnetically excited DC motor. On the one hand, this generates electrical energy for the control or regulating electronics from the leaf movement.Secondly, the control or regulating electronics can dampen the movement of the door leaf by short-circuiting the motor windings. In particular, the control or regulating electronics can dampen the closing movement of the door leaf caused by the relaxing spring after the door leaf is released in a controlled or regulated manner. This can be achieved, for example, by pulse-width modulation of the short circuit depending on the current position or speed of the door leaf. Such a regeneratively damped door leaf generally operates autonomously, like a conventional hydraulically damped door closer, meaning it requires no external electrical power source, neither from the mains nor from a battery.

[0008] The invention is based on the object of providing a drive device of the type mentioned above that eliminates the aforementioned disadvantages. The aim is to ensure, in particular, reliable protection of potential danger zones in the area of ​​the at least partially automatically operated leaf in the simplest and most cost-effective manner possible.

[0009] According to the invention, this object is achieved by a drive device having the features of claim 1. Preferred embodiments of the drive device according to the invention emerge from the subclaims, the present description and the drawing.

[0010] The drive device according to the invention for a leaf of a door, window, or the like comprises a drive with a mechanical accumulator that is charged by an opening movement of the leaf and discharged with a closing movement of the leaf, at least one electric motor that is operatively connected to the leaf via at least one motor shaft and can be operated as a generator to dampen the leaf movements, and control and regulating electronics for controlling the electric motor. The drive device further comprises sensors for monitoring at least one danger zone in the area of ​​the leaf. Furthermore, the electric motor can be controlled via the control and / or regulating electronics to secure the danger zone depending on the output signals of the sensors.

[0011] Due to this design, the at least one electric motor of a generator-damped drive or door closer, which operates as a generator to dampen the leaf movements, is also used in conjunction with a sensor system to secure possible danger zones in the area of ​​the at least partially automatically operated leaf, thereby ensuring the protection of the danger zones in the simplest and most reliable manner possible.

[0012] In particular, a secondary closing edge of a door in question can be monitored as a danger zone by the sensors.

[0013] Alternatively or additionally, a main closing edge of a door in question can also be monitored by the sensor system as a danger zone.

[0014] According to the invention, the danger zone can be monitored by the sensor system during a respective opening and / or closing movement of the leaf, i.e., an area located in front of the leaf in the direction of movement of the leaf. This can also prevent a person from being pushed by a door leaf during opening or closing.

[0015] According to a preferred practical embodiment of the drive device according to the invention, the sensor system comprises at least one contactless sensor and / or at least one tactile sensor.

[0016] The sensor system can, for example, comprise at least one active infrared light sensor, at least one switching strip, at least one active infrared sensor and / or the like.

[0017] According to a suitable practical embodiment of the drive device according to the invention, the drive is provided with at least one interface via which at least one external sensor of the sensor system can be connected and connected to the control and / or regulating electronics of the drive. Each interface or input can be digital and / or analog.

[0018] In principle, however, embodiments of the drive device according to the invention are also conceivable in which at least one sensor of the sensor system is integrated in the drive.

[0019] It is also particularly advantageous if the drive is provided with at least one interface for connecting at least one sensor for a DIN-left door and with at least one interface for connecting at least one sensor for a DIN-right door and / or comprises at least one integrated sensor for a DIN-left door and one integrated sensor for a DIN-right door.

[0020] For left-hand or right-hand doors, two sensors, for example, one with a downward-facing detection field and one with an upward-facing detection field, can be installed in a door closer, or the drive unit can be designed so that a sensor can be inserted at the top or bottom. This allows the same regeneratively damped door closer to be used to secure danger zones on left-hand doors as well as on right-hand doors.

[0021] According to a preferred practical embodiment of the drive device according to the invention, the functionality of the sensors can be tested and / or monitored via the drive's control and regulation electronics. The reliability of safeguarding potential danger zones in the area of ​​the automatically operated leaf is thus increased accordingly.

[0022] The control and / or regulation electronics of the drive are preferably designed such that, in the event of a danger detected by the sensors in at least one monitored danger zone, the speed of the respective closing and / or opening movement of the sash is at least reduced by regenerative damping via the electric motor, which can be operated as a generator. For example, the angular speed of the sash can be reduced from 15° / s to 0.5° / s to minimize the risk of injury to a person in a danger zone.A preferred practical embodiment of the drive device according to the invention is characterized in that, in the event of a danger detected by the sensor system in at least one monitored danger zone, the wing can also be locked against the force of the mechanical accumulator by applying external electrical energy to the electric motor via the control and / or regulating electronics and / or by controlling a braking device for applying external electrical energy to a motor shaft of the electric motor. The external electrical energy in question can originate, for example, from the mains, an accumulator, a battery, and / or the like.

[0023] It is also particularly advantageous if the wing can be released again via the control and / or regulation electronics after the sensors have signalled that the danger has been eliminated.

[0024] According to a further expedient practical embodiment of the drive device according to the invention, the control and / or regulating electronics are designed such that, in the event of a detected error in the sensor system, the speed of a respective closing and / or opening movement of the wing is at least reduced by regenerative damping via the electric motor operable as a generator until the sensor system functions correctly again.

[0025] It is also advantageous if, in the event of a sensor error being detected, the wing can also be locked against the force of the mechanical storage device by applying external electrical energy to the electric motor via the control and / or regulating electronics and / or by controlling a braking device to apply pressure to a motor shaft of the electric motor until the sensor system functions correctly again.

[0026] Advantageously, the sensor system can be put into sleep mode via the control and / or regulating electronics during predefined operating phases of the drive and / or at predefined times. This allows energy to be saved during certain operating phases or at predefined times when any risk to persons can be virtually eliminated. For example, the sensor system can be put into sleep mode during manual opening of the sash, during which a mechanical energy storage device is charged, while the sensor system is activated during the automatic closing of the sash, which is triggered by the stored energy, in order to monitor the automatic closing. As previously mentioned, however, safety monitoring is also possible during a respective opening movement of the sash.

[0027] It is also particularly advantageous if the drive device comprises a warning device for, in particular, acoustic and / or optical signaling of a respective danger detected by the sensor system.

[0028] A respective interface of the drive for connecting an external sensor of the sensor system can, for example, comprise a terminal, a plug, a radio connection and / or the like.

[0029] If the generator-damped drive of the drive device is a generator-damped door closer, it can be installed, for example, as an overhead door closer, mounted on the door leaf, mounted on the hinge side, on the opposite hinge side, and / or similar, as an integrated door closer integrated into the door leaf, as a floor-mounted door closer, and / or similar. Particularly in the case of a door leaf mounting on the opposite hinge side, the sensor unit can be integrated into the generator-damped drive or door closer, in which case a respective sensor can comprise, in particular, an active infrared sensor.

[0030] The invention is explained in more detail below using exemplary embodiments with reference to the drawing, in which: Fig. 1 is a schematic representation of exemplary danger zones in the area of ​​secondary closing edges of doors, Fig. 2 is a schematic representation of the basic structure of an exemplary embodiment of a drive device according to the invention, Fig. 3 is a schematic representation of an exemplary embodiment of a drive device according to the invention, the drive of which is provided with an interface for connecting an external sensor system comprising an active infrared sensor, Fig. 4 is a schematic representation of an exemplary embodiment of a drive device according to the invention, the drive of which is provided with an interface for connecting an external sensor system comprising a switching strip, Fig. 5 is a schematic representation of an exemplary embodiment of a drive device according to the invention with a sensor system integrated in the drive, the sensor system again comprising, for example, an active infrared sensor, Fig.6 shows a schematic representation of an exemplary embodiment of a drive device according to the invention with a sensor system integrated in the drive and comprising an active infrared sensor, the detection field of which covers the secondary closing edge of the door in question, Fig. 7 shows a schematic side view of an exemplary drive of a drive device according to the invention with two sensors integrated in the drive with an upward and a downward detection field, Fig. 8 shows a schematic side view of an exemplary drive of a drive device according to the invention with two interfaces for connecting an external sensor in an upper and lower area, respectively, and Fig. 9 shows a schematic representation of several danger zones in the area of ​​a door which can be monitored by a corresponding sensor system of a drive device according to the invention.

[0031] The Fig. 1 to 9show different embodiments and exemplary applications of a drive device 10 according to the invention for a leaf 12 of a door, a window, or the like. While in the embodiments illustrated in the drawings, the drive device 10 is provided for a leaf 12 of a door, the drive device 10 according to the invention is also applicable in principle to a leaf of a window or the like.

[0032] Fig. 2shows a schematic representation of the basic structure of an exemplary embodiment of the drive device 10 according to the invention. According to this, the drive device 10 comprises a drive 14 with a housing 16, a mechanical energy storage device 18, which is charged by an opening movement of the wing 12 and discharged with a closing movement of the wing 12, at least one electric motor 20, which is operatively connected to the wing 12 via at least one motor shaft 22 and can be operated as a generator to dampen the wing movements, and control and / or regulating electronics 24 for controlling the electric motor 20.

[0033] Furthermore, the drive device 10 comprises a sensor system 26 for monitoring at least one danger zone in the area or in the vicinity of the wing 12. The electric motor 20 can be controlled via the control and / or regulating electronics 24 to secure the danger zone depending on the output signals of the sensor system 26.

[0034] In the present case, the drive 14 is attached, for example, to the wing 12 via its housing 16. The motor shaft 22 of the electric motor 20 is coupled via a gear 28 to an output shaft 30 of the drive 14, to which, in the present case, a sliding arm 32 is connected in a rotationally fixed manner. The sliding arm 32 is provided at its free end with a sliding block 34, which is guided in a sliding rail 36 mounted fixed to the panel.

[0035] A secondary closing edge 38 can also be used as a danger zone (see, for example, the Fig. 1 , 3 to 6 and 9 ) of a respective door can be monitored by the sensor system 26. Alternatively or additionally, a main closing edge 40 (cf. Fig. 9 ) of a door in question can be monitored by the sensor system 26.

[0036] In any case and according to the invention, an area lying in front of the wing 12, viewed in the direction of movement of the wing 12, can be monitored as a danger zone by the sensor system 26 during a respective opening movement and / or closing movement of the wing 12 (cf. in particular again Fig. 9 ). Thus, the drive device 10 according to the invention can prevent a person from being pushed by the wing 12 during opening and / or closing and thus being injured.

[0037] The sensor system 26 can, in particular, comprise at least one contactless sensor and / or at least one tactile sensor. The sensor system 26 comprises, for example, at least one active infrared light sensor, at least one switching strip 42 (see Fig. 4 ), at least one active infrared sensor 44 (see the Fig. 3 and 5 to 7 ) and / or the like.

[0038] The drive 14 can be connected to at least one interface 46 (see the Fig. 3, 4 and8 ), via which at least one external sensor of the sensor system 26 can be connected and connected to the control and / or regulating electronics 24 of the drive 14.

[0039] However, embodiments of the drive device 10 according to the invention are also conceivable in which at least one sensor of the sensor system 26 is integrated in the drive 14 (cf. Fig. 5 to 7 ).

[0040] Fig. 3 shows an exemplary embodiment of the drive device 10 according to the invention, the drive 14 of which is provided with an interface 46 for the connection of an external sensor system 26 comprising an active infrared sensor 44. In the Fig. 4 In the embodiment shown, the drive 14 is provided with an interface 46 for connecting an external sensor system 26 comprising a switching strip 42.

[0041] Fig. 5shows an exemplary embodiment of the drive device 10 according to the invention with a sensor system 26 integrated in the drive 14 and comprising an active infrared sensor 44, the detection field 48 of which covers the secondary closing edge 38 of the door in question. Fig. 6 shows an exemplary embodiment of the drive device 10 according to the invention with a sensor system 26 integrated in the drive 14 and comprising an active infrared sensor 44, the detection field 48 of which covers the secondary closing edge 38 of the door in question.

[0042] As in particular the Figs. 7 and 8 can be removed, the drive 14 can, for example, also be provided with at least one interface 46 for connecting at least one sensor for a DIN-left door and with at least one interface 46 for connecting at least one sensor for a DIN-right door (cf. Fig. 7) and / or at least one integrated sensor for a DIN-left door and one integrated sensor for a DIN-right door (cf. Fig. 8 ).

[0043] The control and / or regulating electronics 24 of the drive 14 can also be designed such that the functionality of the sensor system 26 can also be tested and / or monitored via this control and / or regulating electronics 24.

[0044] In addition, the control and / or regulating electronics 24 of a respective drive 14 can in particular also be designed such that, in the event of a danger detected by the sensor system 26 in at least one monitored danger zone, the speed of a respective closing and / or opening movement of the wing 12 is at least reduced by regenerative damping via the electric motor 20 operable as a generator. In addition, in the event of a danger detected by the sensor system 26 in at least one monitored danger zone, the wing 12 can also be locked or stopped against the force of the mechanical accumulator 18 by supplying external electrical energy to the electric motor 20 via the control and / or regulating electronics 24 and / or controlling a braking device for applying force to a motor shaft 22 of the electric motor 20.In this case, a respective locking of the wing 12 via the control and / or regulating electronics 24 can also be released again, in particular after the sensor system 26 has signaled the elimination of the danger.

[0045] If the functionality of the sensor system 26 can be tested and / or monitored via the control and / or regulating electronics 24 of the drive 14, the control and / or regulating electronics can also be designed such that, if an error is detected in the sensor system 26, the speed of a respective closing and / or opening movement of the wing 12 is at least reduced by regenerative damping via the electric motor 20, which can be operated as a generator, until the sensor system 26 functions correctly again. If an error is detected in the sensor system 26, the wing 12 can also be locked against the force of the mechanical accumulator 18. For this purpose, the electric motor 20 can be supplied with external electrical energy, in particular, via the control and / or regulating electronics 24, and / or a braking device for applying pressure to a motor shaft 22 of the electric motor 20 can be controlled until the sensor system 26 functions correctly again.

[0046] The control and / or regulating electronics 24 can also be designed such that the sensor system 26 can be put into sleep mode during predeterminable operating phases of the drive 14 and / or at predeterminable times in order to save energy. A corresponding design is conceivable, for example, when no external electrical energy is required. For example, the sensor system 26 can be put into sleep mode when the wing 12 is opened, during which the mechanical energy storage device 18 is charged. In contrast, the sensor system 26 can be activated, for example, during a respective closing process of the wing 12 caused by the mechanical energy storage device 18 in order to monitor this automatic closing. In principle, however, monitoring of certain danger zones by an activated sensor system 26 is also conceivable during a respective opening movement of the wing 12.

[0047] Furthermore, the respective drive device 10 can also comprise a warning device for, in particular, acoustic and / or optical signaling of a respective danger detected by the sensor system 26.

[0048] If a respective drive 14 is provided with at least one interface 46 for connecting an external sensor of the sensor system 26, such an interface 46 can comprise, for example, a terminal, a plug, a radio connection and / or the like. List of reference symbols

[0049] 10Drive unit 12Leaf 14Drive 16Housing 18Mechanical energy storage 20Electric motor 22Motor shaft 24Control and / or regulating electronics 26Sensors 28Gearbox 30Output shaft 32Sliding arm 34Sliding block 36Sliding rail 38Secondary closing edge 40Main closing edge 42Safety edge 44Active infrared sensor 46Interface 48Detection field 50Danger zone 52Danger zone

Claims

1. Drive device (10) for a leaf (12) of a door, of a window or the like, having a drive (14) having a mechanical store (18) which is charged by an opening movement of the leaf (12) and is discharged by a closing movement of the leaf (12), at least one electric motor (20) which is operatively connected to the leaf (12) by means of at least one motor shaft (22) and is operable as a generator for damping the leaf movements, and having open-loop and / or closed-loop control electronics (24) for actuating the electric motor (20), characterized in that the drive device (10) also comprises a sensor system (26) for monitoring at least one hazard zone (38, 40, 50, 52) in the region of the leaf (12) and the electric motor (20) can be actuated by means of the open-loop and / or closed-loop control electronics (24) based on the output signals of the sensor system (26) in order to damp the leaf movement in the manner of a generator to make the hazard zone safe, wherein a region (50, 52) located in front of the leaf, when viewed in the direction of movement of the leaf (12), during a respective opening movement and / or closing movement of the leaf (12) can be monitored by the sensor system (26) as a hazard zone.

2. Drive device according to Claim 1, characterized in that a secondary closing edge (38) of a relevant door can additionally be monitored by the sensor system (26) as a hazard zone.

3. Drive device according to Claim 1 or 2, characterized in that a main closing edge (40) of a relevant door can additionally be monitored by the sensor system (26) as a hazard zone.

4. Drive device according to at least one of the preceding claims, characterized in that the sensor system (26) comprises at least one contactless sensor and / or at least one tactile sensor.

5. Drive device according to Claim 4, characterized in that the sensor system (26) comprises at least one active infrared light sensor, at least one switch strip (42), at least one active infrared sensor (44) and / or the like.

6. Drive device according to at least one of the preceding claims, characterized in that the drive (14) is provided with at least one interface (46) via which at least one external sensor of the sensor system (26) is connectable and can be connected to the open-loop and / or closed-loop control electronics (24) of the drive (14).

7. Drive device according to at least one of the preceding claims, characterized in that at least one sensor of the sensor system (26) is integrated in the drive (14).

8. Drive device according to Claim 7, characterized in that the drive (14) is provided with at least one interface (46) for the connection of at least one sensor for a DIN left door and with at least one interface (46) for the connection of at least one sensor for a DIN right door, and / or comprises at least one integrated sensor for a DIN left door and one integrated sensor for a DIN right door.

9. Drive device according to at least one of the preceding claims, characterized in that the functionality of the sensor system (26) can be tested and / or monitored by means of the open-loop and / or closed-loop control electronics (24) of the drive (14).

10. Drive device according to at least one of the preceding claims, characterized in that the open-loop and / or closed-loop control electronics (24) of the drive (14) are designed such that, in the event of a hazard detected by the sensor system (26) in at least one monitored hazard zone (38, 40), the speed of a respective closing and / or opening movement of the leaf (12) is at least reduced by generator damping by means of the electric motor (20) which is operable as a generator.

11. Drive device according to at least one of the preceding claims, characterized in that, in the event of a hazard detected by the sensor system (26) in at least one monitored hazard zone, the leaf (12) can be locked against the force of the mechanical store (18) by virtue of the electric motor (20) being able to be acted on by external electrical energy via the open-loop and / or closed-loop control electronics (24) and / or a braking apparatus being able to be actuated to act on a motor shaft (22) of the electric motor (20).

12. Drive device according to at least one of the preceding claims, characterized in that the respective locking of the leaf (12) can be released again by means of the open-loop and / or closed-loop control electronics (24) after the sensor system (26) has signalled the removal of the hazard.

13. Drive device according to at least one of the preceding claims, characterized in that the open-loop and / or closed-loop control electronics (24) are designed such that, in the event of a detected fault in the sensor system (26), the speed of a respective closing and / or opening movement of the leaf (12) is at least reduced by generator damping by means of the electric motor (20) which is operable as a generator until the sensor system (26) returns to operating correctly.

14. Drive device according to at least one of the preceding claims, characterized in that, in the event of a detected fault in the sensor system (26), the leaf (12) can be locked against the force of the mechanical store (18) by virtue of the electric motor (20) being able to be acted on by external electrical energy via the open-loop and / or closed-loop control electronics (24) and / or a braking apparatus being able to be actuated to act on a motor shaft (22) of the electric motor (20) until the sensor system (26) returns to operating correctly.

15. Drive device according to at least one of the preceding claims, characterized in that the sensor system (26) can be switched to a sleep mode by means of the open-loop and / or closed-loop control electronics (24) in predefinable operating phases of the drive (14) and / or at predefinable times.

16. Drive device according to at least one of the preceding claims, characterized in that the drive device (10) comprises a warning device for, in particular, acoustic and / or visual signalling of a respective hazard detected by the sensor system (26).