Door assembly, in particular house or balcony door assembly

Abstract

The invention relates to a door arrangement (10), in particular a house or balcony door arrangement, wherein a motor drive unit (38) is provided for driving a pull or drive rod, wherein a sensor device is provided for detecting a movement of the pull or drive rod, and wherein a motor drive unit can be activated depending on a movement of the pull or drive rod detected by means of a sensor device, wherein the sensor device comprises an incremental encoder coupled to the movement of the pull or drive rod, wherein the incremental encoder has incremental sections offset from one another along a movement of the incremental encoder, and wherein the sensor device comprises two optical sensors which detect a movement of the incremental encoder.

Description

[0001] The invention relates to a door arrangement, in particular a house or balcony door arrangement, comprising a door leaf movable relative to a frame, with a locking device which, by means of at least one locking element, locks the door leaf to the frame in a locked state and releases the door leaf relative to the frame in an unlocked state, wherein an actuating element that can be mechanically operated by an operator is provided for selecting the state of the locking device, and wherein the locking device has a pull or drive rod slidably arranged on the door leaf along an axis of movement for transmitting a movement of the actuating element to the at least one locking element, wherein a motor drive unit is provided for driving the pull or drive rod.wherein a sensor device is provided for detecting a movement of the pull or drive rod and wherein the motor drive unit can be activated depending on a movement of the pull or drive rod detected by means of the sensor device.

[0002] Such a door arrangement is known from WO 2015 / 140078 A1. This door arrangement has the advantage that the motorized drive unit provides an additional drive option for the pull or drive rod, so that the locking state of the locking device can be changed independently of the actuation state of the operating element (e.g., a handle or a cylinder lock). In this way, remote control of the locking device can be implemented, for example, to unlock the front door of an apartment building using a control unit located on the apartment side. A further advantage is that the operating forces required for unlocking do not have to be applied manually (e.g., by pressing the handle or turning a key in a cylinder lock), or at least not exclusively, but can be provided at least partially by the motorized drive unit.

[0003] The invention is based on the objective of providing a particularly reliable and tamper-proof door arrangement.

[0004] This problem is solved according to the invention in that the sensor device comprises an incremental encoder coupled to the pull or drive rod, wherein the incremental encoder has incremental sections offset from one another along a movement of the incremental encoder, and that the sensor device comprises two optical sensors which detect a movement of the incremental encoder.

[0005] The sensor device according to the invention enables particularly reliable and tamper-proof operation of the door assembly. The incremental encoder and the two optical sensors are preferably arranged in a protected area of ​​a housing of the motor drive unit. External manipulation can be ruled out due to the optical operating principle of the sensor device.

[0006] Since the incremental encoder interacts with not just one, but two optical sensors simultaneously, tamper resistance is further increased. The use of two optical sensors also makes it possible to evaluate the output signals of both sensors to determine the direction of movement of the incremental encoder.

[0007] Preferably, the optical sensors are arranged on the same mounting plane and offset from each other. This allows for a flat design of the sensor assembly and simultaneous detection of the movement of successive incremental sections of the incremental encoder by each of the two optical sensors.

[0008] Preferably, the distance between the two optical sensors—as viewed along the movement of the incremental encoder—corresponds to a natural multiple of the distance between two adjacent incremental sections. This allows for the provision of a redundant sensor setup and particularly simple evaluation with regard to the agreement of the output signals of the two optical sensors. For example, the two distances mentioned are identical.

[0009] Alternatively, it is preferred that – viewed along the movement of the incremental encoder – the distance between the two optical sensors deviates from a natural multiple of the distance between two adjacent incremental sections. This allows for the provision of different output signals from the two optical sensors, which can be evaluated, in particular, to detect opposing directions of movement of the incremental encoder. For example, the two sensors are offset from each other by a distance that is 1.25 times the distance between two adjacent incremental sections.

[0010] For a simple design of the sensor device, it is preferred if the incremental encoder has a support section extending parallel to the axis of movement of the pull or drive rod, from which the incremental sections project.

[0011] It is possible for the incremental encoder to be directly connected to the pull or drive rod. However, it is also possible for the incremental encoder to be arranged on an intermediate element that is motionally coupled to the pull or drive rod, and for the support section to be connected to or integrally formed with the intermediate element. This allows for simple motion coupling with the pull or drive rod and simultaneously makes it possible to arrange the incremental encoder in an area spaced away from the pull or drive rod, preferably within a housing of the motor drive unit.

[0012] To space the support section away from the pull or drive rod, it is preferred that the support section is held on a holding section extending perpendicular to the axis of movement of the pull or drive rod.

[0013] The incremental sections are preferably designed as material projections. These material projections can have end faces or be connected in the area of ​​the end faces to an additional material section that extends, for example, parallel to the support section.

[0014] The material protrusions can be opaque, thus blocking light rays from optical sensors that rely on the principle of transmitted light. Alternatively, the material protrusions can be reflective, thus reflecting light rays from optical sensors that rely on the principle of reflection.

[0015] Similarly, translucent material sections or open areas can be arranged between the material protrusions, allowing light to pass through.

[0016] For easy evaluation of the output signals from the optical sensors, it is preferable if the incremental segments – viewed along the movement of the incremental encoder – have identical incremental segment lengths. The incremental segment lengths are therefore understood as dimensions that are parallel to the axis of movement of the pull or drive rod.

[0017] For particularly reliable operation of the incremental encoder, it may be preferred if it has at least six incremental sections, preferably at least eight incremental sections, and in particular at least ten incremental sections.

[0018] It is particularly preferred if the sensor device for evaluating the output signals of the optical sensors is coupled to a control unit, wherein the control unit is configured to detect opposing directions of movement of the incremental encoder and / or different movement speeds of the incremental encoder. This opens up the possibility of detecting a multitude of operating states of the door assembly.

[0019] In particular, it is preferred if the control unit selectively activates or deactivates a motor of the motor drive unit, preferably taking into account a detected direction of movement and / or a detected speed of movement.

[0020] For example, the door leaf of the door assembly might close at high speed and hit the frame (door slamming). This door slamming can cause the pull or drive rod to perform opposing movements in a very short time and in an uncontrollable manner. Detecting such an event can then be used to intentionally prevent the motor of the drive unit from being activated.

[0021] Furthermore, it is possible, for example, that starting from a permanently open position of at least one locking element (permanent open position, daytime unlocking) and a subsequent return of the pull or drive rod, the return direction of the pull or drive rod is defined as a direction of movement to which the motor of the motor drive unit is intentionally not activated.

[0022] Furthermore, it is possible, for example, that starting from a locked position, a very rapid movement of the pull or drive rod, caused by a sudden actuation of a push button, is perceived as a powerful, manual actuation, for which the motor of the motor drive unit is intentionally not activated.

[0023] In particular, it is preferred if the control unit activates the motor of the motor drive unit only when exclusively a direction of movement of the incremental encoder is detected which corresponds to an opening direction of the pull or push rod, and if the movement of the incremental encoder in this direction of movement does not exceed a predetermined maximum speed.

[0024] Further features and advantages of the invention are the subject of the following description and the graphic representation of preferred embodiments.

[0025] The drawings show: Fig. 1 a perspective view of an embodiment of a door arrangement; Fig. 2 a [unclear] Fig. 1 The section marked II with a motor drive unit; Fig. 3 the section according to Fig. 2 in a side view; Fig. 4 a perspective view of the interior of the motor drive unit; Fig. 5 a view in Fig. 4 The section marked V in an enlarged top view; and Fig. 6 one of the Fig. 5 corresponding section of another embodiment in perspective view.

[0026] One embodiment of a door assembly is designated in the drawing by reference numeral 10. The door assembly 10 comprises a door leaf 14, which is movable relative to a frame, for example, pivotable. A locking device 16 is provided for locking the door leaf 14 to the frame 12, which in the illustrated embodiment comprises two locking elements 18, 20. The locking device 16 can be actuated by means of an actuating element 22, for example, in the form of a lock cylinder 24. It is also possible that a door handle (not shown) forms an actuating element 22, which interacts with a lever handle 26.

[0027] In the embodiment shown in the drawing, the actuating element 22 and / or the handle 26 are part of a lock case 28. It is possible that the lock case 28 includes a bolt 30, which is actuated directly by the actuating element 22, in particular in the form of the locking cylinder 24. The lock case 28 can additionally or alternatively include a latch 32, which is actuated directly by an actuating element 22 in the form of a door handle and using the handle 26.

[0028] To transmit a movement of the actuating element 22 to the locking elements 18, 20, a pull or drive rod 34 is provided, which, in a state mounted on the door leaf 14, is covered by a strike plate 36. In particular, the pull or drive rod 34 and the strike plate 36 extend along a vertically oriented side of the door leaf 14 facing away from the hinge.

[0029] The door assembly 10 further comprises a motor drive unit designated in its entirety by reference numeral 38, by means of which the pull or drive rod 34 can be driven, in particular directly, preferably exclusively in a Figure 3 indicated opening direction 40 of the pull or connecting rod 34. The pull or connecting rod 34 is movable along an axis of movement 41.

[0030] The motor drive unit 38 comprises a motor 43 arranged within a housing 42, which drives a drive element 44 via a gearbox 45. The drive element 44 is movable in the opening direction 40 of the drawbar or connecting rod 34 and in the opposite direction. The drive element 44 has a force transmission surface 46 that interacts with a force receiving surface 50 of a force receiving element 52 that is positively and / or non-positively connected to the drawbar or connecting rod 34.

[0031] The motor drive unit 38 can be firmly connected to the sleeve 36 by means of screws 54. It is preferred that the motor drive unit 38 comprises projections 56 which, in particular, penetrate material openings 58 in the pull or drive rod 34, which are designed as elongated holes. Here, a front face of the projections 56, facing the rear of the sleeve 36, protrudes beyond a front face 60 of the pull or drive rod 34, so that the motor drive unit 38 can be firmly connected to the sleeve 36 and, at the same time, allows free movement of the pull or drive rod 34 between the motor drive unit 38 and the sleeve 36.

[0032] The motor drive unit 38 comprises an additional element designated by reference numeral 62, which is slidably mounted on the housing 42 parallel to the axis of movement 41 of the pull or drive rod 34. The additional element 62 has a driver section 64 that projects into a driver receptacle 66 of the pull or drive rod 34 (compare Figures 4 and 2 ), so that a movement of the pull or drive rod 34 along the axis of movement 41 is transferred into a parallel movement of the additional element 62.

[0033] The additional element 62 is in particular designed in the form of a metal part, which is preferably manufactured by forming or primary forming. Alternatively, the additional element 62 can be made of a plastic material.

[0034] The additional element 62 has a holding section 68 extending perpendicular to the axis of movement 41 of the unlocking movement, on which a support section 70 extending parallel to the axis of movement 41 is arranged.

[0035] The carrier section 70 is part of an incremental encoder 72 and serves to arrange a series of incremental sections 74, which are separated from each other by free areas 76.

[0036] The carrier section 70, the incremental sections 74, and the free areas 76 extend in a common plane, which is oriented parallel to a mounting plane 78. The mounting plane 78 is formed by the surface of the circuit board 80 of a control unit 82. The control unit 82 serves to control the motor 43.

[0037] A first optical sensor 84 and a second optical sensor 86 are arranged on the mounting level 78. The optical sensors 84 and 86 and the incremental encoder 72 together form a sensor assembly 88, see Figure 78. Figure 4 The sensor device 88 is coupled to the control unit 82. Depending on the direction in which the pull or drive rod 34 and thus also the incremental encoder 72 moves along the axis of movement 41, the sensors 84 and 86 generate different output signal sequences, each of which is assigned to one of the directions of movement.

[0038] The optical sensors 84 and 86 are arranged offset from each other along an axis parallel to the axis of movement 41.

[0039] Starting from a closed state of the door leaf 14, in which the door leaf 14 rests against the frame 12, and starting from a locked state of the locking device 16, in which the locking elements 18 and 20 lock the door leaf 14 to the frame 12, an initial actuation of the actuating element 22 initially only causes an initial movement of the pull or drive rod 34. The initial actuation of the actuating element 22, however, does not yet cause an unlocking movement of the bolt 30 and the latch 32 (for this purpose, the bolt 30 and the latch 32 are decoupled from the actuating element 22 via short free strokes). In a corresponding manner, the initial movement of the pull or drive rod 34 does not yet cause an unlocking movement of the locking elements 18 and 20 (for this purpose, the control elements of the locking elements 18 and 20 are also decoupled from the pull or drive rod over short idle strokes).

[0040] The initial movement of the pull or drive rod 34 is therefore accomplished – thanks to the aforementioned free strokes – with only very small operating forces, which an operator can exert very comfortably. It is sufficient that the pull or drive rod 34 is moved from its rest position, thereby changing the relative position of the incremental encoder 72 and the incremental sections 74 relative to the optical sensors 84, 86. The resulting change in the output signals of the optical sensors 84, 86 is detected by the control unit 82, so that the control unit 82 activates the motor 43 and drives the pull or drive rod 34 in the opening direction 40. In this way, the locking elements 16, 18 are unlocked in a manner known per se; operating forces on the actuating element 22 can be completely dispensed with.

[0041] After the locking device 16 is released, the door leaf 14 can be opened.

[0042] The locking elements 18, 20 are, for example, spring-operated latch bolts. The pull or drive rod 34 can be moved against the opening direction 40 by spring actuation (in particular by using a spring 98 acting between the housing 42 and the additional element) and / or by the pull or drive rod 34 shifting downwards due to its own weight.

[0043] The housing 42 is spatially separated from the lock case 28. This simplifies the retrofitting of an existing system.

[0044] One in the Fig. 6 The illustrated further embodiment of a sensor device 88 also comprises two optical sensors 84, 86, which are arranged on a mounting plane 78 and offset from each other and detect a movement of an incremental encoder 72. The sensor device 88 according to Fig. 6The carrier section 70, the incremental sections 74 and the free areas 76 extend in a common plane, which - in contrast to the sensor device 88 according to Figures 4 and 5 - however, it is not oriented parallel to the mounting plane 78, but perpendicular to the mounting plane 78. Furthermore, for the embodiment according to Fig. 6 to the above description Figures 1 to 5 Reference made to.

Claims

1. Door assembly (10), in particular a house or balcony door assembly, comprising a door leaf (14) movable relative to a frame (12), with a locking device (16) which, in a locked state, locks the door leaf (14) to the frame (12) by means of at least one locking element (18, 20) and, in an unlocked state, releases the door leaf (14) relative to the frame (12), wherein an actuating element (22) that can be mechanically operated by an operator is provided for selecting the state of the locking device (16), and wherein the locking device (16) has a pull or drive rod (34) slidably arranged on the door leaf (14) along an axis of movement (41) for transmitting a movement of the actuating element (22) to the at least one locking element (18, 20), wherein a motorized drive unit (38) is provided for driving the pull or drive rod (34). is,wherein a sensor device (88) is provided for detecting a movement of the pull or drive rod (34) and wherein the motor drive unit (38) can be activated depending on a movement of the pull or drive rod (34) detected by means of the sensor device (88), characterized by the fact that the sensor device (88) comprises an incremental encoder (72) coupled to the pull or drive rod (34) in motion, wherein the incremental encoder (72) has incremental sections (74) offset from each other along a movement of the incremental encoder (72), and that the sensor device (88) comprises two optical sensors (84, 86) which detect a movement of the incremental encoder (72).

2. Door arrangement (10) according to claim 1, characterized by the fact that the optical sensors (84, 86) are arranged on a mounting plane (80) and offset from each other.

3. Door arrangement (10) according to one of the preceding claims, characterized by the fact that- seen along a movement of the incremental encoder (72) - a) a distance between the two optical sensors (84, 86) corresponds to a natural multiple of the distance between two adjacent incremental sections (74), or b) a distance between the two optical sensors (84, 86) deviates from a natural multiple of the distance between two adjacent incremental sections (74).

4. Door arrangement (10) according to one of the preceding claims, characterized by the fact that the incremental encoder (72) has a support section (70) extending parallel to the axis of movement (41) of the pull or drive rod (34), from which the incremental sections (74) project.

5. Door arrangement (10) according to claim 4, characterized by the fact thatthe incremental encoder (72) is arranged on an intermediate element (62) which is coupled to the pull or drive rod (34) for movement, and that the support section (70) is connected to the intermediate element (62) or is formed integrally with the intermediate element (62).

6. Door arrangement (10) according to claim 4 or 5, characterized by the fact that the support section (70) on a perpendicular to the axis of movement (41) of the train - or the connecting rod (34) extending the holding section (68).

7. Door arrangement (10) according to one of the preceding claims, characterized by the fact that the incremental sections (74) are designed as opaque material protrusions and / or light-reflecting material protrusions.

8. Door arrangement (10) according to claim 7, characterized by the fact that translucent material sections or free areas (76) are arranged between the material protrusions.

9. Door arrangement (10) according to one of the preceding claims, characterized by the fact thatthe sensor device (88) for evaluating output signals of the optical sensors (84, 86) is coupled to a control unit (82), wherein the control unit (82) is configured to detect opposite directions of movement of the incremental encoder (72) and / or different movement speeds of the incremental encoder (72).

10. Door arrangement according to claim 9, characterized by the fact that the control unit (82) activates or does not activate a motor (43) of the motor drive unit (38), preferably taking into account a detected direction of movement and / or a detected movement speed of the incremental encoder (72).

11. Door arrangement according to claim 10, characterized by the fact thatThe control unit (82) activates the motor (43) of the motor drive unit (38) only if a movement direction of the incremental encoder (72) is detected which corresponds to an opening direction (40) of the pull or push rod (34), and if the movement of the incremental encoder (72) in this movement direction does not exceed a predetermined maximum speed.

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