Door closer

Abstract

The invention relates to a door closer (1) for closing a door (200), comprising: a housing (2) and an output shaft (3) supported in the housing, which is designed to fasten a lever device (103); a mechanical energy store (4) in the housing (2), which acts on the output shaft (3) in order to rotate the output shaft, the energy store (4) preferably being designed as a spring; a module (40) comprising at least one battery (42) and / or a data transmission unit (44) for data transmission, the housing (2) comprising a first end face (2.1) which, when the door closer (1) is installed, is to face a hinge (201) of the door (200), the housing (2) comprising a second end face (2.2) which is opposite the first end face (2.1), and the second end face (2.2) is to face the hinge (201) of the door (200) when the door closer (1) is installed on the first end face (2.1). And wherein the module (40) is arranged next to the second end face (2.2) of the housing (2).

Description

Technical Field

[0001] This invention relates to a door closer for closing doors. Background Technology

[0002] EP3 315 704 A1 illustrates a system for monitoring safety-related functions of a door closer. Here, a combination of position and acceleration signals is used to check for damage or tampering at the door closer. Thus, for example, it can be identified whether a rod connected to the output shaft of the door closer has become detached. Summary of the Invention

[0003] The purpose of this invention is to provide a door closer that can be installed in a space-saving and flexible manner, and which enables the safe use of the door.

[0004] The objective is achieved through the features of the independent claim. The subject matter of the dependent claims is the preferred embodiment of the invention.

[0005] Explanations such as "left," "right," and "front" should be understood from the perspective of an observer standing in front of the installed door closer.

[0006] This invention discloses a door closer for closing a door. The door closer has a housing. The housing is particularly made of metal, preferably cast. Within the housing, the output shaft of the door closer is rotatably supported. The output shaft can rotate about a rotation axis.

[0007] The output shaft forms a fastening rod device. According to the first mounting variation, the door closer can be fastened to the door. The rod device here forms a connection to the wall. For example, a slide rail for the rod device is fastened to the wall. The term "wall" within the scope of this invention also includes the door frame. According to the second mounting variation, the door closer can be fastened to the wall. The rod device then forms a connection from the door closer to the door, i.e., to the door leaf. For example, a slide rail for the rod device is fastened to the door, i.e., to the door leaf.

[0008] The door closer includes a mechanical energy storage device. The mechanical energy storage device is particularly configured as a spring. A helical spring is particularly preferred. The mechanical energy storage device is housed within a housing and loads an output shaft to rotate in the closing rotation direction.

[0009] As also described in detail, a transmission unit may exist between the energy storage device and the output shaft to facilitate the conversion between the movement of the output shaft and the movement of the energy storage device.

[0010] Especially when the door closer is installed correctly for closing the door and the door is closed, the output shaft rotates primarily in the "closing rotation direction". When the door is open, the output shaft rotates in the opposite direction, also known as the opening rotation direction.

[0011] The door closer is preferably configured without a drive mechanism, so that it does not involve a door drive mechanism that operates in a motor-driven manner.

[0012] It can be suggested that the door closer includes hydraulic fluid to cushion the closing motion.

[0013] According to the present invention, the door closer includes a module. The module has at least one battery or a housing device for the battery and / or a data transmission unit. The data transmission unit is preferably configured for wireless electronic data transmission. For example, the data transmission unit can transmit data via NB-IoT and / or Bluetooth. The data transmission unit preferably includes at least one antenna.

[0014] At least one battery preferably constitutes a power supply for the data transmission unit. The battery should be understood not only as a primary battery but also as a rechargeable secondary battery. A module may comprise multiple batteries. The housing assembly may form electrical contacts for the multiple batteries.

[0015] It is particularly preferred that the data transmission unit is configured to transmit the battery state, such as the charging state, of at least one battery.

[0016] The housing has a first end side, which should face the door hinge (also called a door latch) when the door closer is installed. A second end side is defined opposite the first end side of the housing. Correspondingly, the second end side faces the main closing edge of the door. The module is positioned next to the second end side of the housing. This results in a space-saving arrangement of the module, and the positioning of the module does not affect the positioning of the first end side or the output shaft.

[0017] "Next to the second end side" here means that the module is positioned directly and / or spaced apart laterally on the second end side. Therefore, the module is at least near the second end side.

[0018] Preferably, the module is at least indirectly connected to the housing. Therefore, the door closer is preferably configured as a mechanical structural unit.

[0019] The module can in particular enable the electrical and / or data supply to any monitoring element in the door closer—such as the sensor unit described herein—thereby enabling the safe operation of the door.

[0020] Preferably, the door closer is configured not to be connected to an external power supply.

[0021] The door closer is configured to be installed at a door or wall in both right-hand and left-hand arrangements. In the left-hand arrangement, the door hinge is on the left side of the door closer; in the right-hand arrangement, the door hinge is on the right side of the door closer. Here, the first end side should always face the hinge. The terms "left-hand arrangement" and "right-hand arrangement" are understood within the scope of this disclosure to refer to the door closer's "left-hand arrangement" and "right-hand arrangement" at a door or wall.

[0022] Not only in the right-hand arrangement but also in the left-hand arrangement, the module is positioned beside the second end of the housing. Therefore, the module is always positioned away from the door hinge. Here, the module is preferably connected to the housing at least indirectly. Thus, it is feasible to position the module away from the hinge when changing from the right-hand arrangement to the left-hand arrangement in the door closer, or vice versa. Furthermore, the door closer is configured as a compact structural unit. The at least indirect connection between the housing and the module is preferably made within the door closer itself.

[0023] To ensure the module is always positioned adjacent to the second end of the housing, the door closer preferably includes a corresponding connecting mechanism. Specifically, the module and housing are connected, at least indirectly, by means of the connecting mechanism in a form-fitting and / or force-fitting manner. Thus, the module is positioned in a way that allows it to be reversibly detached from the housing.

[0024] It can be proposed that the arrangement of the module and the housing differ from each other in the right-hand and left-hand arrangements. Therefore, when changing from the right-hand arrangement to the left-hand arrangement, the module and housing move independently of each other. For this purpose, the connection via the connecting mechanism is specifically eliminated so that the module and housing can subsequently be connected to each other again, at least indirectly, in another arrangement. Preferably, the door closer includes different connecting mechanisms by which the module can be arranged in different arrangements relative to the housing. Thus, the connecting mechanism is used selectively. At least one first connecting mechanism is used in the left-hand arrangement, while another second connecting mechanism is not used in the left-hand arrangement. Correspondingly, the second connecting mechanism is used in the right-hand arrangement, but the first connecting mechanism is not used.

[0025] Preferably, the door closer is configured such that the housing is oriented with a first housing orientation when arranged on the left and with a second housing orientation that rotates relative to the first housing orientation when arranged on the right. For example, the door closer has two connecting ends of an output shaft, at which a lever assembly can be selectively fastened. Similarly, the transmission unit can be configured accordingly, as known, for example, from WO2011 / 009556A1.

[0026] Additionally or alternatively, within the scope of the invention, the door closer may be configured such that the module is oriented as a first module in a left-hand arrangement (of the door closer at the door) and oriented as a second module, rotating relative to the first module orientation, in a right-hand arrangement (of the door closer at the door). Thus, not only does the housing having the energy storage unit and output shaft rotate when changing from the left-hand arrangement to the right-hand arrangement, but the module also rotates.

[0027] In order to secure the module in a rotating module orientation, a corresponding shape-fitting and / or force-fitting connecting mechanism, particularly a first and second connecting mechanism, can be provided in the door closer according to the invention.

[0028] For example, it can be proposed that the data transmission unit be positioned away from the housing. This allows data to be transmitted or received with minimal interference from the metal housing. Preferably, the data transmission unit is positioned away from the housing in both the left and right side arrangements. This is achieved, in particular, by rotating the module from a first module orientation to a second module orientation.

[0029] It can be proposed that the module includes a housing device for the battery. The battery can be housed in the housing device in an electrical contact manner. To replace the battery, the battery can be removed from the housing device and replaced with a charged battery.

[0030] Preferably, the data transmission unit is fixedly connected to the housing assembly. Here, "fixedly connected" specifically means a form-fitting, force-fitting, or material-fitting connection. For example, the data transmission unit can be screwed onto the housing assembly. The connection between the data transmission unit and the housing assembly preferably remains unchanged when changing from a right-side arrangement to a left-side arrangement.

[0031] It can be proposed that the housing device includes an opening for battery replacement. A user can reach into the housing device through said opening to remove or insert the battery. Preferably, the door closer is configured such that, in both right-side and left-side arrangements, the opening remains perpendicular to the door's opening orientation. For example, in the case of an installed door closer, the opening always points forward. Thus, battery replacement can always be easily performed in both right-side and left-side arrangements.

[0032] In particular, to maintain the orientation of the opening, the door closer can be configured such that the module and the housing move independently of each other when changing from a right-side arrangement to a left-side arrangement. That is, at least the indirect connection between the housing and the module is disengaged. Preferably, the rotation of the housing from a first housing orientation to a second housing orientation is different from the rotation of the first module orientation to a second module orientation.

[0033] For example, it can be proposed that the door closer is configured such that, with the second housing oriented, the housing rotates 180° relative to the first housing not only about the longitudinal axis but also about a rotation axis perpendicular to the longitudinal axis.

[0034] For example, with the second module orientation, the module rotates about a rotation axis perpendicular to the longitudinal axis, specifically by 180°. More specifically, with the second module orientation, the module rotates only about a rotation axis perpendicular to the longitudinal axis.

[0035] To achieve this, the door closer preferably includes different connecting mechanisms, which are used only in the right-hand arrangement or in the left-hand arrangement. Thus, the connecting mechanisms are used selectively. The connecting mechanisms can be first and second connecting mechanisms.

[0036] The door closer includes a mounting plate, and the door closer housing is secured to the mounting plate. The mounting plate includes fastening elements, particularly fastening elements configured as holes, for screwing the mounting plate onto a door or wall, and for securing the housing to the mounting plate. Other components may be secured to the mounting plate if necessary.

[0037] The mounting plate, housing, and module are configured such that the housing can be fastened to different locations on the mounting plate, particularly to the left and right, without rotating the mounting plate. Therefore, it is possible for the mounting plate to have a length that corresponds to the length of the housing and the length of the module, but does not necessarily have to be twice the length of the housing plus the length of the module.

[0038] In a housing arrangement on the left side of the mounting plate, i.e., slightly to the left, the module is located on the right side of the housing, especially above the mounting plate. In a housing arrangement on the right side of the mounting plate, i.e., slightly to the right, the module is located on the left side of the housing, especially above the mounting plate.

[0039] In particular, the module is positioned completely above the mounting plate in the left and right side arrangements, so as not to extend laterally beyond the mounting plate.

[0040] In particular, the mounting plate and housing are configured such that the housing can be fastened to the mounting plate in an orientation that is oriented to the left (i.e., slightly to the left) and to the right (i.e., slightly to the right) at least once by rotation of 180°.

[0041] The housing may define two halves, with a first half belonging to a first end side and a second half belonging to a second end side. The output shaft is located in the first half, thus being closer to the first end side relative to the second end side. The energy storage unit is preferably at least partially located in the second half, thus being closer to the second end side relative to the first end side. Therefore, the energy storage unit is disposed between the output shaft and the second end side.

[0042] Preferably, the door closer includes a cover. The cover, facing at least one side, particularly forward, covers at least the housing and module of the door closer.

[0043] Preferably, the cover faces multiple sides to cover the housing and module.

[0044] In particular, the module is, preferably, completely beneath the cover.

[0045] Particularly preferably, the module is disposed on the inner side, and particularly fastened to the cover. When fastened, the cover may include a connecting mechanism, particularly first and second connecting mechanisms, by means of which the module is indirectly connected to the housing. In particular, the cover may include a connecting mechanism by which the module can be selectively connected when arranged on the left or right side.

[0046] The connecting mechanism can be configured as a module receiving section. Preferably, it provides not only a module receiving section for the left-side arrangement but also a module receiving section for the right-side arrangement.

[0047] The cover is preferably fastened to the mounting plate.

[0048] Preferably, the cover has opposing end walls.

[0049] The end walls are preferably connected to each other via two opposing side walls. In particular, the two end walls and the two side walls together form the base of the cover. The base of the cover is preferably closable by means of a removable cap of the cover.

[0050] Preferably, the module can be disposed at one end wall of the cover, particularly preferably selectively at both end walls of the cover, and especially fastened thereto. In the case of fastening, one end side of the cover, preferably multiple end sides of the cover, may include a connecting mechanism by which the module is indirectly connected to the housing.

[0051] The module is preferably positioned on both sides of the housing due to the selective left- or right-biased arrangement of the housing with respect to the mounting plate. Therefore, it is preferable to have module receiving portions at each of the two end walls of the cover to secure the module.

[0052] For the installation at the cover, additionally or alternatively, the module can preferably be disposed, and in particular secured, to a mounting plate. Preferably, the module can be disposed, and in particular secured, to two opposite sides of the mounting plate. Thus, a connecting mechanism for indirect connection with the housing can be configured at the mounting plate. In particular, the mounting plate may include a connecting mechanism by which the module can be selectively connected, and in particular secured, in the case of a left-side or right-side arrangement.

[0053] In particular, the connecting mechanism of the mounting plate can be configured as at least one or more holes. For example, the module can be fastened in the hole by a fastening mechanism, such as a screw. Preferably, the mounting plate includes a first connecting mechanism, in particular one or more holes, for fastening in the case of a left-side arrangement, and a second connecting mechanism, in particular one or more holes, for fastening in the case of a right-side arrangement.

[0054] Preferably, the module can be detached from the cover and / or, especially for battery replacement, from the mounting plate without damage, preferably in a tool-free manner.

[0055] The module preferably has a module circuit board. The module is secured, in particular, by means of the module circuit board. In particular, the module circuit board is secured to the cover, preferably at the module receiving portion.

[0056] Particularly preferably, the module has a housing device. The housing device is further preferably fastened to the module circuit board.

[0057] Preferably, the module is secured with a gap between it and the mounting plate. This gap can prove advantageous in a fire situation if the mounting plate is heated via a door, as it prevents heat from being directly transferred to the module and thus the battery. Specifically, the gap is chosen such that at least one battery is spaced at least 5 mm from the mounting plate.

[0058] Preferably, the cover, especially the end walls, is at least partially made of plastic. This allows the data transmission unit to transmit data without interference, and / or, in the event of a fire, the connection to the module can be melted particularly well, allowing the module to sink.

[0059] Preferably, the door closer includes a sensor connected to the module for data and / or current transmission. The connection can be, for example, a cable connection.

[0060] The door closer preferably includes a sensor unit, which is preferably configured and arranged to detect the actual rotation angle of the output shaft. The sensor unit includes a sensor and an encoder.

[0061] The encoder is preferably disposed and configured at the output shaft. The encoder is preferably a separate component disposed, and particularly fastened, at the output shaft. Alternatively, the output shaft may also be configured to function as an encoder.

[0062] The sensor unit's sensor is preferably configured and arranged for identifying the encoder, particularly in a non-contact manner. Particularly preferably, the sensor is configured to detect the encoder's position and / or rotation and / or acceleration. It is particularly noted that the combination of the sensor and encoder can enable the detection of the actual rotation angle of the output shaft.

[0063] The sensor unit can detect the position and / or movement of the output shaft using a simple mechanism. Because the encoder is located directly on the output shaft, position and / or movement can be detected very accurately. From this, it can be inferred whether the door closer functions as required, and thus whether the safe operation of the door is possible. For example, it can identify whether the door is open or closed. Furthermore, it can thus identify whether the lever mechanism has been damaged or tampered with, as also described in detail in conjunction with the evaluation unit.

[0064] The advantage of mounting the encoder directly or indirectly, via an encoder fastening device, at the output shaft is that the encoder, and thus the entire sensor unit, can complement existing door closers. For such existing door closers, the necessary clearances typically already exist, so that by adding a sensor unit, no change to the clearances is required, or only a minor change is needed. This is particularly due to the fact that the relatively small encoder does not affect the mechanisms within the door closer, thus the basic function of the door closer—namely, the basic function of safely closing the door—is unaffected by the sensor unit.

[0065] The rotation axis of the output shaft preferably intersects with the sensor and / or encoder. This ensures that the sensor and encoder are positioned as close as possible to the rotation axis, thereby enabling accurate detection of the actual rotation angle in the narrowest possible space.

[0066] Particularly preferably, the sensor is arranged symmetrically with respect to the rotation axis, whereby the rotation axis intersects the sensor, particularly at its center. Furthermore, it is preferably proposed that the encoder is arranged symmetrically with respect to the rotation axis, whereby the rotation axis intersects the center of the encoder.

[0067] Preferably, the sensor is disposed at a sensor housing. The sensor housing preferably positions the sensor at the end of the output shaft.

[0068] The sensor housing preferably includes a retainer. The retainer is particularly one-piece. Preferably, the retainer is made of plastic.

[0069] Preferably, the sensor housing device includes a sensor circuit board. The sensor is disposed on the sensor circuit board, and the sensor circuit board is preferably fastened to the retainer.

[0070] Preferably, the sensor housing device, particularly the retainer, is fastened, especially screwed onto the mounting plate. Therefore, it is feasible to position the sensor relatively securely and with precise positioning.

[0071] Alternatively or additionally, the sensor housing can be abutted and / or fastened to the door closer housing. Fastening relative to the housing, in particular, allows for very precise positioning of the sensor relative to the encoder located on the output shaft.

[0072] The retainer preferably has a retainer protrusion. The retainer protrusion extends around the output shaft such that the output shaft extends into the retainer protrusion. Preferably, the retainer protrusion abuts against the housing axially inward. Thus, the retainer rests against the housing. Preferably, the retainer protrusion clamps radially outward against the inner surface of the housing, thereby securing the retainer to the housing.

[0073] Alternatively or additionally, the sensor housing may be abutted against the cover on its inner side. Preferably, the retainer is clamped between the cover and the housing. This results in another possibility for precisely and as close to gapless as possible positioning of the sensor housing, thereby enabling the sensor to be positioned.

[0074] Preferably, the sensor receiving device includes at least one fastening spring, particularly as part of the retainer, to pre-tighten the clamped retainer.

[0075] The cover preferably includes at least one retainer receiving portion for the retainer. Preferably, the cover includes a fastening plate, wherein the fastening plate is open at the retainer receiving portion to push in the retainer. By means of the fastening plate, the cover can be fastened, in particular screwed, to the mounting plate.

[0076] Preferably, the retainer receiving portion is double-constructed on the inner side at one of the two sidewalls of the cover. This double-construction of the retainer receiving portion is particularly useful when the housing is arranged between the left and right sides.

[0077] Preferably, the encoder includes a permanent magnet, and the sensor is a magnetic sensor, especially a Hall sensor.

[0078] Preferably, the permanent magnet is configured such that the north pole forms one end of the permanent magnet and the south pole forms the other end. Therefore, as the encoder rotates, the positions of the north and south poles change in space. For example, the permanent magnet is circularly constructed, with the north and south poles each forming half of the permanent magnet.

[0079] The encoder is preferably fastened, particularly screwed, to the end of the output shaft. Particularly preferably, the output shaft has a fastening device receiving portion on at least one side, particularly both sides. The fastening device receiving portion is, in particular, a hole coaxial with the rotation axis of the output shaft. The fastening device receiving portion is particularly preferably threaded.

[0080] Preferably, the encoder fastening device is inserted, or in particular screwed, into a fastening device receiving portion. The encoder fastening device has a fastening head. The encoder is preferably fastened, or in particular, adhered to the fastening head.

[0081] In a preferred embodiment, the fastening head has a form-fitting element that ensures precise positioning of the encoder. Furthermore, it is preferably proposed that the fastening head has an edge surrounding the encoder, such that the edge also ensures precise fastening of the encoder on the fastening head.

[0082] The encoder fastening device is preferably made of plastic.

[0083] The output shaft is preferably exposed on two opposite sides of the housing, and here it is used to selectively fasten the lever assembly to one side or the other. It is proposed that the lever assembly can be fastened to both sides of the output shaft; however—as described by the expression "selectively"—it is actually fastened to only one side. The choice made depends on whether the door closer is in a left-hand or right-hand arrangement.

[0084] Therefore, in the case of the specific door closer in the first assembly configuration, the first side of the output shaft is used for the fastening rod device. The encoder is preferably fastened at least indirectly to the other side of the output shaft, i.e., the second side. This other side, i.e., the second side, is also suitable in principle for the fastening rod device.

[0085] Therefore, in the case of the specific door closer in the second assembly configuration, the second side of the output shaft is used for the fastening rod device. The encoder is preferably fastened at least indirectly to the other side of the output shaft, i.e., the first side. The other side, i.e., the first side, is also suitable in principle for the fastening rod device.

[0086] In particular, the output shaft has connecting ends, preferably polygonal, particularly preferably quadrilateral, on two opposite exposed sides to secure the rod device.

[0087] Because the encoder can preferably be installed at each of the connection ends, the sensor housing must also preferably be able to be installed on both sides of the output shaft.

[0088] Therefore, it can be proposed that the sensor be placed on one side of the housing when it is arranged on the right side, and on the opposite side of the housing when it is arranged on the left side.

[0089] In particular, the cover surrounds the sensor device.

[0090] It is possible that the retainer can engage with the opening therein, surrounding the output shaft with different depths on both sides. Therefore, it is possible that different retainers are provided on both sides. It is possible that each retainer is configured to axially abut against the bearing closure, and / or each retainer is configured to radially abut against the opening.

[0091] As described, the encoder is preferably located at the output shaft and rotates with the output shaft. In contrast, the sensor is fixedly mounted, however, preferably close to the encoder, especially at the end of the output shaft.

[0092] As already mentioned, the door closer may include a transmission unit housed within the door closer's housing and configured to transmit motion between the output shaft and the energy storage device. Specifically, the transmission unit is configured to transmit motion between the rotational motion of the output shaft and the linear motion of the energy storage device.

[0093] The transmission unit preferably has a cam that rotates with the output shaft. The cam is located on the output shaft and can be an integral part of the output shaft. The cam is particularly heart-shaped, thus having two convex sides that converge into a recess.

[0094] The transmission unit preferably includes a shut-off piston, which is guided by rolling or sliding at a cam. Specifically, a shut-off piston roller is present at the shut-off piston, rolling at the cam. The shut-off piston is guided, in particular, linearly within the housing and loaded by an energy storage device. If the shut-off piston moves in one direction, it loads energy into the energy storage device. When the energy storage device releases energy, the shut-off piston is pressed in the opposite direction by the energy storage device.

[0095] Preferably, the output shaft rotates within a first angular range to open and close the door. This first angular range should differ from a second angular range, into which the output shaft can rotate; however, the second angular range is not occupied by the output shaft as long as the door closer is properly installed at the door and in operation. If the door closer is not installed, the output shaft rotates specifically into the second angular range because this allows the energy storage device to release energy as much as possible.

[0096] The closing piston is preferably guided at the side of the cam. The side extends into the recess of the cam, wherein in the closed position of the output shaft, the closing piston, and in particular its closing piston rollers, rests against the side rather than the recess. If the actual rotation angle moves into the second rotation angle range, the closing piston moves along the side toward the recess.

[0097] When installing a door closer, a lever assembly is mounted onto the output shaft, and the output shaft is rotated via the lever assembly until it reaches a first angular range. If the door closer is already installed, the lever assembly is always connected to the output shaft on one side and to a wall or door on the other side. Thus, the output shaft can rotate at most to the boundary between the first and second angular ranges, but not into the second angular range. Therefore, the boundary between the first and second angular ranges represents the "closed position" of the output shaft. In this closed position, the corresponding door is closed. The angle of the closed position of the output shaft is called the "closing rotation angle."

[0098] If damage occurs at the door closer or the lever assembly, or if the lever assembly is tampered with, especially if the lever assembly is disengaged, the output shaft will rotate from the first angular range to the second angular range.

[0099] The invention also includes a monitoring system comprising the described door closer and electronic evaluation unit.

[0100] As will be described in detail later, the evaluation unit need not be located within the door closer, but can be located at any other location. The evaluation unit stores the closing rotation angle, thus knowing the boundary between a first angle range and a second angle range within the evaluation unit. The closing rotation angle can be a value fixedly stored in the evaluation unit or a value that can change depending on the assembly of the door closer. Alternatively, it is also possible to determine the closing rotation angle within the evaluation unit through a corresponding learning process after the door closer is installed.

[0101] The evaluation unit is preferably configured to generate a notification when the actual rotation angle is within the second angle range; therefore, the generation of the notification depends on whether the actual rotation angle is within the second angle range.

[0102] The notification is, for example, a signal generated by the evaluation unit and further used internally, such as to issue a warning, and / or the evaluation unit transmits the signal to another unit. Based on the notification generated in the evaluation unit, it can be inferred that there is damage or tampering as described above. From this, it can be concluded that the door may not have closed properly with the aid of a door closer, which is particularly important in fire doors.

[0103] Preferably, the door closer is configured to rotate the output shaft to a second angular range once the connection between the output shaft and the door or between the output shaft and the wall—especially the lever device—is disengaged. It should be particularly considered that the lever device connects the output shaft to the door as long as the door closer is secured to the wall, or connects the output shaft to the wall as long as the door closer is secured to the door.

[0104] Furthermore, it is preferably proposed that the output shaft, in its closed position, i.e., when the door is closed, is loaded by the energy storage device to rotate in the closing rotation direction. This specifically means that the output shaft is also loaded by the energy storage device in its closed position, and the energy storage device does not fully release its energy here. This ensures, in particular, that the energy storage device can also rotate the output shaft from the closed position to a second angular range.

[0105] When the output shaft rotates in the closed rotation direction, the preload of the energy storage device or the energy stored in the energy storage device decreases. It is specifically mentioned that the minimum value of the preload in the energy storage device exists not in the closed position, but in the second angular range.

[0106] Preferably, when the door is opened, the output shaft can rotate in the opening rotation direction to load energy onto the energy storage device. The opening of the door is particularly achieved by manual operation of the door, especially by manual operation by the user.

[0107] Particularly preferably, the described monitoring system includes a lever device. The lever device can also be considered as part of a door closer. The lever device is secured to one side of the output shaft, and the encoder is secured to the other side of the output shaft. Therefore, each side of the output shaft not used for the lever device can be used for a sensor device.

[0108] The lever assembly preferably includes a slide rail and a lever, wherein one end of the lever is guided in the slide rail and the other end of the lever can be secured to the output shaft.

[0109] Alternatively, the lever assembly preferably includes a link having two rods rotatably connected to each other. One end of the link can be secured to an output shaft. The other end of the link can be rotatably secured to a wall as long as the door closer is installed at the door, or as long as the door closer is installed at the wall, the other end of the link can be rotatably secured to the door.

[0110] As already mentioned, the assessment unit is specifically configured to forward generated notifications to external units. These units may be building control units and / or cloud and / or servers and / or terminal devices and / or mobile terminal devices. Terminal devices are, for example, computers. Mobile terminal devices are, for example, smartphones or tablets.

[0111] By forwarding notifications from the evaluation unit to external units, corresponding warnings can be generated within the unit in any manner and method. For example, a message could be displayed on a mobile device indicating damage or tampering at a specific door closer.

[0112] According to an optional first variant, the evaluation unit for generating notifications is located as an internal evaluation unit in the door area, particularly within the door closer. The expression "within the door closer" should be understood in particular as meaning the evaluation unit is located below the door closer's cover. Alternatively, the evaluation unit may also be located next to the door closer, for example, in the door area. The evaluation unit may be shared with the data transmission unit on the module circuit board.

[0113] According to an optional second variant, the evaluation unit that generates the notification is outsourced as an external evaluation unit, wherein the door closer is configured to send the actual rotation angle or the value derived therefrom to the external evaluation unit—particularly by means of a data transmission unit.

[0114] If the evaluation unit is an internal evaluation unit, then preferably, at least one battery of the module is also configured to power the evaluation unit.

[0115] The module's data transmission unit can send the actual rotation angle or its derived value to the external evaluation unit whenever an external evaluation unit is involved. If an internal evaluation unit is involved, the generated notification can be sent to the external unit, such as a server or terminal device, via the transmission unit.

[0116] The object of the present invention is also achieved by the method for installing a door closer according to the invention, according to claim 16. In particular, the method is used for installing the door closer described above, especially the door closer according to any one of claims 1 to 15. Similarly, the door closer described above can be installed by means of the method according to the invention.

[0117] The method according to the present invention includes at least the following steps:

[0118] • Position the housing against a door or wall such that the first end of the housing faces the door hinge.

[0119] • The module is positioned next to the second end of the housing, opposite the first end. Attached Figure Description

[0120] The invention will now be described in detail with reference to embodiments. Hereinafter:

[0121] Figure 1 A schematic diagram of a monitoring system is shown, the monitoring system having an external evaluation unit and a door closer according to an embodiment of the present invention.

[0122] Figure 1a A schematic diagram of a variant of the monitoring system is shown, wherein the monitoring system has an internal evaluation unit in the door closer according to the present invention according to the embodiment.

[0123] Figure 2 A perspective view of the door closer according to the present invention based on the described embodiment is shown.

[0124] Figure 3 An exploded view of the door closer according to the embodiment of the invention is shown.

[0125] Figure 4 The diagram shows the internal components of the door closer according to the present invention, based on the described embodiment.

[0126] Figure 5 A schematic cross-sectional view showing details of the door closer according to the embodiment described above is provided.

[0127] Figure 6 A perspective view of the door closer according to the present invention, without a cover, is shown according to the described embodiment.

[0128] Figure 7 Shown in Figure 2 Section AA, which was selected by the bid

[0129] Figure 8 Show Figure 7 Details in

[0130] Figure 9 The end face of the output shaft of the door closer according to the present invention, according to the described embodiment, is shown.

[0131] Figure 10 A sensor housing device for a door closer according to the present invention is shown in the embodiment described.

[0132] Figure 11 Details of the cover of the door closer according to the present invention are shown in the embodiment described.

[0133] Figure 12 A variation of the sensor housing device for the door closer according to the present invention is shown, based on the described embodiment.

[0134] Figure 13 A perspective view of the door closer according to the present invention, based on the described embodiment, is shown, wherein the cover is open.

[0135] Figure 14 A cross-sectional view of a module in a door closer according to the present invention, based on the described embodiment, is shown.

[0136] Figure 15 A perspective view of a module of the door closer according to the present invention, based on the described embodiment, is shown.

[0137] Figure 16 This illustrates a variation of the design of a door closer module according to the present invention based on the described embodiment.

[0138] Figure 17 Show Figure 16 A cross-sectional view of a variant of the module in the diagram.

[0139] Figure 18 This illustrates a variation of the fastening of the module of the door closer according to the present invention, based on the described embodiment.

[0140] Figure 19 Different diagrams are shown of the left and right arrangements of the housing of the door closer according to the present invention, according to the described embodiment, wherein different components are hidden for overview purposes.

[0141] Figure 20 The method according to the present invention is shown. Detailed Implementation

[0142] According to the following text Figures 1 to 19 A door closer 1 according to the present invention is described. The door closer may be a component of a monitoring system 100.

[0143] according to Figure 1 The monitoring system 100 includes an evaluation unit 101. Figure 1In this configuration, evaluation unit 101, as an external evaluation unit 101, is located outside the door closer 1. Alternatively, evaluation unit 101 can function as an internal evaluation unit 101—according to... Figure 1a —It can also be a component of door closer 1.

[0144] In addition, the monitoring system 100 includes an external unit 102, such as a server, cloud, building control unit, terminal device, or mobile terminal device. The evaluation unit 101 and the external unit 102 are connected to each other for data transmission.

[0145] Door closer 1 includes a data transmission unit 44. Figure 1 The diagram schematically illustrates wireless data transmission from the data transmission unit 44 to the external evaluation unit 101. If according to... Figure 1a If the evaluation unit 101 is located inside the door closer 1 as an internal evaluation unit, then the data transmission unit 44 wirelessly transmits data to the external unit 102.

[0146] The monitoring system 100 also includes a lever assembly 103. The lever assembly 103 consists of a lever 104 and a slide rail 105.

[0147] according to Figure 1 Door closer 1 is located at door 200. Correspondingly, slide rail 105 is fastened to wall 202. Rod 104 connects door closer 1 to slide rail 105 at wall 202. Figure 1 As shown in the diagram, wall 202 and door frame 200 are synonymous.

[0148] The door 200 is rotatably supported relative to the wall 202 via two hinges 201. Figure 1 or Figure 2 The door closer 1 in the arrangement is the door closer 1 located on the left side.

[0149] In the following text, unless otherwise specified, all accompanying figures will always be referred to:

[0150] The door closer 1 has a housing 2. A first end side 2.1 and an opposite second end side 2.2 are defined in the housing 2 (see...). Figure 3 ).

[0151] In addition to the housing 2, the door closer 1 has a mounting plate 50 and a cover 30. The housing 2 is fastened to the mounting plate 50. The mounting plate 50 includes fastening elements 51 configured as holes. The mounting plate 50 is used to fasten the door closer 1 to the door 200 or the wall 202. Furthermore, according to the present invention, the door closer 1 includes a module 40. Figure 3 An exploded view of the four components, namely housing 2, module 40, cover 30, and mounting plate 50, is shown. It can also be seen that module 40 is positioned next to the second end side 2.2.

[0152] Furthermore, the door closer 1 has an output shaft 3. The output shaft 3 is rotatably supported in the housing 2 and is loaded by an energy storage device 4 configured as a helical spring (see [link]). Figure 4 ). For example, especially Figure 7 As shown, the output shaft 3 is supported on both sides by means of bearings 13. The bearings 13 are fixed by means of screw-in bearing seals 14. The bearing seals 14 are considered part of the housing 2.

[0153] Output shaft 3 is exposed on both sides (see) Figure 7 This allows the lever assembly 103 to be secured to the output shaft 3 from both sides in principle. However, in practice, only one side of the output shaft 3 is used to secure the lever assembly 103. The other side of each output shaft 3 is used in the door closer 1 to position the sensor unit 20.

[0154] The output shaft 3 has a polygon 3.1 configured as a quadrilateral on each of its two sides. The output shaft 3 is rotatable about a rotation axis 3.3. Coaxial with the rotation axis 3.3, the output shaft 3 has a fastening device receiving portion 3.2 on each side. The fastening device receiving portion 3.2 is configured as a hole with internal threads and is used to fasten the rod device 103 or the encoder 21 of the sensor unit 20, as will be described in detail hereafter.

[0155] exist Figure 4 The housing 2 is concealed within the housing, allowing the internal components to be seen. Accordingly, the door closer 1 includes a transmission unit 5 within the housing 2. The transmission unit 5 has a cam 5.1 that rotates with the output shaft 3. A closing piston 5.2 is guided by a closing piston roller 5.3 rolling on the cam 5.1. Here, the closing piston roller 5.3 rolls on one side 5.4 of the cam 5.1. Figure 5 The schematic cross-sectional view in the diagram illustrates this in detail.

[0156] also, Figure 4 and Figure 5 As shown, the buffer piston 6 is linearly and movably guided within the housing 2. The buffer piston 6 also rolls at the cam 5.1 by means of the buffer piston roller 7.

[0157] The cam 5.1 has two opposing sides 5.4 that converge into a recess 5.5. The sides 5.4 extend convexly here, resulting in a heart-shaped cam 5.1.

[0158] According to Figure 4 and Figure 5In the diagram, the energy storage device 4 is in the state of releasing energy. The closing piston roller 5.3 rests against the cam 5.1 within the recess 5.5. This relative position between the cam 5.1 and the closing piston roller 5.3 is only obtained when the door closer 1 is not yet installed or when the connection via the lever device 103 is interrupted due to damage or tampering. However, when the door closer 1 is functionally installed and the connection between the door closer 1 and the wall 202 is secured via the lever device 103, the output shaft 3 relative to... Figure 5 The diagram shows that the piston roller 5.3 is rotated so that it rests against the outside of the recess 5.5.

[0159] Figure 5 The diagram illustrates the closing rotation direction 12. When the door 200 is closed, the output shaft 3 rotates along this closing rotation direction. The opening rotation direction extends in the opposite direction to the drawn closing rotation direction 12.

[0160] also, Figure 5 The closing rotation angle 10 of the output shaft 3 is shown purely exemplarily, separating the first angular range 8 and the second angular range 9 from each other. The closing rotation angle 10 is shown here only as a simplified line, because within the scope of this invention, it is not important from which 0° position of the closing rotation angle 10 is measured; what is important is that the closing rotation angle 10 separates the first angular range 8 from the second angular range 9. The exemplary rotation angle of the output shaft 3 is the actual rotation angle 11—also simplified as a line. According to... Figure 5 The schematic diagram shows that the actual rotation angle is within the second angle range 9. If the output shaft 3 rotates in the opposite direction of the closing rotation 12, the actual rotation angle 11 moves away from the second angle range 9, exceeds the closing rotation angle 10, and reaches the first angle range 8. During normal use of the door, the actual rotation angle 11 only moves within the first angle range 8.

[0161] However, if damage or tampering occurs, especially at the lever assembly 103, the output shaft 3 will rotate in the closed rotation direction 12 due to the loading of the energy storage device 4 until the actual rotation angle 11 is detected again in the second angle range 9.

[0162] A sensor unit 20 is provided to detect the actual rotation angle 11. The precise design of the sensor unit 20 is particularly important from... Figure 3 , Figure 4 and Figures 6 to 12 Therefore, the sensor unit 20 includes an encoder fastening device 22. The encoder fastening device 22 is preferably made of plastic. The encoder fastening device 22 is screwed into the fastening device receiving portion 3.2 of the output shaft 3.

[0163] The encoder fastening device 22 has a fastening head 22.1 (see [reference]). Figure 8The encoder 21, especially the encoder configured as a permanent magnet, is placed, especially attached to the fastening head 22.1.

[0164] The fastening head 22.1 includes an edge 22.2 and a shape-fitting element 22.3 (see [reference]). Figure 9 Edge 22. surrounds encoder 21. Form-fitting element 22.3 and encoder 21 engage with each other. Precise positioning of encoder 21 relative to output shaft 3, and thus relative to rotation axis 3, is possible via edge 22.2 and / or form-fitting element 22.3. In particular, it is possible to symmetrically position encoder 21 relative to rotation axis 3.3.

[0165] The encoder fastening device 22 may have a tool engagement 22.4, which in particular simplifies screwing the encoder fastening device 22 into the fastening device receiving portion 3.2.

[0166] A sensor 23 is located adjacent to, but not in contact with, the encoder 21. The sensor 23 is secured to the end side of the output shaft 3 by means of a sensor housing 24, thereby being directly secured to the encoder 21.

[0167] The sensor housing 24 includes a retainer 24.1 and a sensor circuit board 24.2. The sensor 23 is located on the sensor circuit board 24.2. The sensor circuit board 24.2 is secured by the retainer 24.1.

[0168] The retainer 24.1 has a retainer protrusion 24.4 (see [reference]). Figure 7 , Figure 8 , Figure 10 The retaining protrusion extends around the output shaft 3, such that the output shaft 3 extends into the retaining protrusion 24.4.

[0169] The retainer protrusion 24.4 abuts against the housing 2 axially, specifically against the bearing seal 14. Thus, the retainer 24.1 rests against the housing 2. The retainer protrusion 24.4 is radially clamped to the inner surface of the housing 2, thereby securing the retainer 24.1 to the housing 2.

[0170] In addition, the attached figures, especially Figure 6 As shown, the retainer 24.1 has a fastening spring 24.5. The fastening spring 24.5 rests against the cover 30 on the inside, thereby clamping the retainer 24.1 between the cover 30 and the housing 2.

[0171] The sensor housing device 24, particularly the retainer 24.1, has a retainer clip 24.3 (see...). Figure 7 and Figure 8 The sensor circuit board 24.2 is secured to the retainer 24.1 by means of the retainer clip 24.3.

[0172] especially Figure 11 This indicates that the cover 30 has a fastening plate 30.1. The fastening plate 30.1 allows the cover 30 to be fastened, particularly screwed, to the mounting plate 50. Furthermore, Figure 11 As shown, the cover 30 has at least one retainer receiving portion 30.2 on its inner side. The retainer 24.1 extends into the retainer receiving portion 30.2. In particular, a gap 30.3 without a fastening plate 30.1 is provided in the region of the retainer receiving portion 30.2. This ensures that the fastening plate 30.1 does not obstruct the retainer 24.1 when the cover 30 is placed.

[0173] Figure 12 An alternative fastening method for sensor 23 is shown. Here, sensor 23 is also located at sensor circuit board 24.2. Retainer 24.1 accommodates sensor circuit board 24.2. However, retainer 24.1 is configured such that it can be directly fastened, in particular screwed onto mounting plate 50. It is also possible to directly fasten sensor 23 to the end side of output shaft 3, thereby directly fastening it to encoder 21.

[0174] according to Figure 13 The cover 30 has two opposing end walls 31. The end walls 31 are connected to each other via two opposing side walls 32. In particular, the two end walls 31 and the two side walls 32 together form the base of the cover 30. The base of the cover 30 can be closed by means of a cover 33.

[0175] Figure 13 The removed cover 33 is shown. It can be clearly seen here that the described retainer housing 30.2 is double-constructed on the inner side at one of the two sidewalls 32. This double-construction of the retainer housing 30.2 is particularly useful when the housing 2 is changed between the left-side arrangement A and the right-side arrangement B, as this is according to… Figure 19 As will be explained in more detail later.

[0176] With the help of Figure 13 The shaft clearance 34 shown in the figure is similarly represented. In the illustrated figure, the shaft clearance 34 on the left is used to connect the rod assembly 103 to the output shaft 3. Such a shaft clearance 34 is also provided on the right side of the illustrated cover 30, which can be closed, for example, by a holeless cover (not shown) or can be removed.

[0177] also, Figure 13 The previously mentioned module 40 is shown within the cover 30. The module 40—arranged selectively on the left side A and right side B of the housing 2—can also be positioned on both sides of the cover 30. Therefore, Figure 13Module receiving portions 35 are shown at the two end walls 31 of the cover 30. According to... Figure 13 In the diagram, the module receiving portion 35 on the right is used. The module receiving portion 35 is used as a connecting mechanism.

[0178] The module receiving portion 35 has a module slot 35.1 and a module clip 35.2. As will also be described, the module 40 includes a module circuit board 43. The module circuit board can be pushed into the module slot 35.1 and secured by the module clip 35.2. Alternatively (see...) Figure 18 Module 40 is fastened, especially screwed, onto mounting plate 50. In the alternative, module slot 35.1 and module clip 35.2 can be omitted.

[0179] The substrate with module housing 35 is made of plastic, which causes the substrate to deform under heat, thereby releasing module 40 so that module 40 can move away from door 200.

[0180] Module 40 has a housing assembly 41. According to... Figures 13 to 15 The housing assembly 41 includes an inner housing 41.1 and an outer housing 41.2. The inner housing 41.1 is used to directly house the battery 42. The inner housing 41.1 is disposed within the outer housing 41.2. The outer housing 41.2 is fastened to the module circuit board 43 and additionally supported to the mounting plate 50 via a spacing retainer 41.3.

[0181] The spacing retainer 41.3 ensures the spacing 41.4 between module 40 and mounting plate 50 (see [reference]). Figure 14 If the mounting plate 50 is heated via the door 200 in a fire situation, the spacing 41.4 can be proven to be advantageous because, due to the spacing 41.4, heat will not be directly transferred to the module 40, and thus the battery 42.

[0182] The housing assembly 41 and the module circuit board 43 are fastened by screws and form a pre-installed assembly that remains unchanged when the arrangement is changed from the left side to the right side.

[0183] Housing assembly 41 includes an opening 46 that faces forward toward the user in the assembled state (see [link]). Figure 19 ).exist Figure 15 In this configuration, module 40 is rotated so that opening 46 points diagonally upward. The user can replace battery 42 through opening 46. In this embodiment, the user can remove the inner casing 41.1 containing battery 42, replace battery 42, and then reinsert the inner casing 41.1.

[0184] Figure 16 and Figure 17A variant of module 40 is shown. Here, the housing assembly 41 has only an inner housing 41.1. The inner housing 41.1 is used to directly house the battery 42. The inner housing 41.1 is fastened to the module circuit board 43. A spacing 41.4 is also maintained here (see also...). Figure 17 ).

[0185] Figure 18 A variation for securing module 40 to mounting plate 50 is shown. Here, housing device 41 is secured to mounting plate 50 by means of housing fastening device 45, such as screws. Thus, screws serve as the connecting mechanism. Module receiving portion 35 can also be omitted here. The fastening of module 40 by means of housing fastening device 45—due to the selective left-side arrangement A and right-side arrangement B of housing 2—is preferably feasible on both sides of mounting plate 50.

[0186] In all the variations shown, module 40 can be detached without damage. For tool-free detachment, module clip 35.2 can be configured for manual operation. Housing retainer 45 can also be detached without tools, for example, by means of wing screws.

[0187] As in Figure 14 and Figure 17 , Figure 18 As schematically shown, the data transmission unit 44 can be located within module 40, for example, within or on module circuit board 43. In the internal evaluation unit 101, the electronic evaluation unit can be located on module circuit board 43.

[0188] Two halves can be defined at the housing 2, wherein the first half is associated with the first end side 2.1 and the second half is associated with the second end side 2.2. The output shaft 3 is located in the first half, thus being closer to the first end side 2.2 relative to the second end side 2.2. The energy storage device 4 is at least partially located in the second half, thus being closer to the second end side 2.2 relative to the first end side 2.1.

[0189] For example, especially Figure 1 and Figure 3 As shown in the overview, the first end side 2.1 faces at least one hinge 201 of the door 200. Correspondingly, the second end side 2.2 faces the main closing edge 203 of the door 200.

[0190] Figure 19 The arrangement A on the left side of door closer 1 and the arrangement B on the right side of door closer 1, as already mentioned, are shown in detail. Figure 19 In the four diagrams, the components are gradually hidden so that the complete structure can be understood.

[0191] For overview purposes, Figure 19Two arrangements, A and B, are shown respectively; it is fully understood that only one of these two arrangements is always used at door 200. For orientation, Figure 19 The first view also shows the hinge 201 of the door 200. The first end side 2.1 of the housing 2, and thus the half of the housing 2 with the output shaft 3, is always associated with the hinge 201.

[0192] Figure 19 In principle, module 40 is positioned on the mounting plate 50 next to the second end side 2.2 of housing 2. The mounting plate 50 does not rotate when changing between the left-side arrangement A and the right-side arrangement B. However, from the orientation of the first housing (see...), Figure 19 (The third image on the left) is transformed to the second shell orientation (see...) Figure 19 (See the third figure on the right). Here, housing 2 is rotated 180° about an axis perpendicular to the longitudinal axis, causing the first end 2.1 and the second end 2.2 to change their left / right orientation. Furthermore, housing 2 is rotated about its longitudinal axis, causing the other free end of output shaft 3 to now point upwards. The longitudinal axis is here parallel to gate 200.

[0193] Figure 19 The third figure also shows that module 40 is located at the second end 2.2 of housing 2 in both the left-side arrangement A and the right-side arrangement B. Here, module circuit board 43 always points outward. That is, module circuit board 43, and thus data transmission unit 44, are away from housing 2 in both arrangements A and B. Thus, module circuit board 43 faces end 31. To achieve this, module 40 also changes its orientation from the first module orientation to the second module orientation when changing from the left-side arrangement A to the right-side arrangement B. Here, module 40 rotates about an axis perpendicular to door 200, without rotating about an axis parallel to door. This ensures that opening 46 always faces forward towards the user, allowing for easy replacement of battery 42 in both arrangements A and B.

[0194] In summary, it can be determined that in both arrangements A and B, the housing 2 and the module 40 are arranged differently from each other. When changing from the left-hand arrangement A to the right-hand arrangement B, the housing 2 and the module 40 move independently of each other.

[0195] Mounting plate 50, and especially its fastening element 51, are configured such that housing 2 can be fastened to mounting plate 50 not only in arrangement A on the left side but also in arrangement B on the right side, so that module 40 is always in place next to the second end side 2.2.

[0196] The mounting plate 50 has a length that substantially corresponds to the length L1 of the housing 2 and the length L2 of the module 40. Here, in the case of arrangement A where the door closer 2 is on the left side of the door 200, the housing 2 is positioned slightly to the left of the mounting plate 50. In this embodiment, the housing 2 is even located at the left edge of the mounting plate 50. In the case of arrangement B where the door closer 2 is on the right side of the door 200, the housing 2 is positioned slightly to the right of the mounting plate 50. In this embodiment, the housing 2 is even located at the right edge of the mounting plate 50. That is, the housing 2 has moved relative to the mounting plate 50.

[0197] Conversely, in the case of arrangement A where the door closer 2 is on the left side of the door 200, module 40 is located on the right side of the housing 2. In this embodiment, module 40 is even located at the right edge of the mounting plate 50. In the case of arrangement B where the door closer is on the right side of the door 200, module 40 is located on the left side of the housing 2. In this embodiment, module 40 is even located at the left edge of the mounting plate 50 (see...). Figure 19 (The third picture).

[0198] In this example, the door closer 1 is secured to the door 200. In this configuration, the sensor unit 20 is always located at the lower end of the output shaft 3 in both arrangements A and B. Because the housing 2 rotates about its longitudinal axis, the sensor unit 20 is located at a different free end of the output shaft 3 in the left-hand arrangement A compared to the arrangement on the right side (B). Therefore, the sensor unit 20 is located on a different side of the housing in the left-hand arrangement compared to the arrangement on the right side.

[0199] In the case where the door closer 1 is installed at the wall 202 or at the door frame 202 (not shown), the sensor unit 20 is disposed above the housing 2 in the arrangement A on the left and the arrangement B on the right, respectively.

[0200] As from Figure 19 As can be seen in the third figure, the surrounding environment of the free end of the output shaft 3 is different from each other. In particular, the openings 2.3 around the end of the output shaft 3 are shaped differently. Therefore, the door closer 1 to be installed is equipped with two retainers 24.1, one of which is suitable for the left arrangement A, and the other is suitable for the right arrangement B.

[0201] For example Figure 19 As shown, the mounting plate 50 may have, for example, an arrow-shaped orientation indicator 52. The orientation indicator 52 indicates the orientation in which the mounting plate 50 must be fastened. Figure 19 The final diagram shows that the orientation indicator 52 is oriented in the same way not only in the left arrangement A but also in the right arrangement B, thus concluding that the mounting plate 50 does not need to be rotated.

[0202] To install the door closer 1, the following method 300 according to the present invention is performed:

[0203] In method step 301, the mounting plate 50 is positioned at a predetermined distance from the hinge 201, and is screwed onto the door 200. Compared to the arrangement A on the right side, the mounting plate 50 is positioned further to the left of the door 200 in the case of the arrangement A on the left side.

[0204] Subsequently, in method step 302, the housing 2 is positioned at the mounting plate 50. In the case of the left-side arrangement A, the housing 2 is located on the upper left side of the mounting plate 50; in the case of the right-side arrangement B, the housing 2 is located on the upper right side of the mounting plate 50. Note that the housing 2 is oriented according to the first or second housing orientation.

[0205] In the next step 303, one of the two retainers 24.1 is selected, and the sensor circuit board 24.2 is secured to the selected retainer 24.1. Subsequently, the retainer 24.1 is clipped into the opening 2.3 below.

[0206] Furthermore, in method step 304, the cover 30 is prepared. For this purpose, a proper shaft clearance 34 is manufactured. Additionally, the module 40 is inserted into the module receiving portion 35 configured for the desired arrangements A and B: in the case of arrangement A on the left, the module 40 is inserted into the module receiving portion 35 on the right. In the case of arrangement B on the right, the module 40 is inserted into the module receiving portion 35 on the left. Each other module receiving portion 35 remains empty. Here, the module 40 has a corresponding module orientation.

[0207] Subsequently, in method step 305, the base of the cover 30, along with the module 40, is placed on the mounting plate 50. Here, the retainer 24.1, with the fastening spring 24.5, enters one of the retainer receptacles 30.2. In the case of the left-side arrangement A, the retainer 24.1 enters the left-side retainer receptacle 30.2. In the case of the right-side arrangement B, the retainer 24.1 is disposed in the right-side retainer receptacle 30.2. Each other retainer receptacle 30.2 remains free. Subsequently, the cover 30 is fastened to the mounting plate 50, for example, by clips or screws. Through method step 305, the module 40 reaches the second end side 2.2 of the housing 2.

[0208] Subsequently, in method step 306, an electrical connection is established from sensor unit 20 to module 40. For example, a connector secured to the cable is plugged into module circuit board 43. The connection from battery 42 to module circuit board 43 is already in place. Finally, cover 33 is secured.

[0209] As long as it is physically feasible, other sequences of method steps are also possible: therefore, the retainer 24.1 can be set first, and then the housing 2 with the retainer can be fastened to the mounting plate 50, or an electrical connection can be established between the sensor unit 20 and the module 40 first, and then the cover 30 can be fitted onto the housing 2.

[0210] List of reference numerals

[0211] 1 door closer

[0212] 2 shells

[0213] 2.1 First end side

[0214] 2.2 Second end side

[0215] 2.3 Opening

[0216] 2.4 Inner wall of the opening

[0217] 3 output shafts

[0218] 3.1 Polygons

[0219] 3.2 Fastening device receiving part

[0220] 3.3 Output shaft rotation axis

[0221] 4 energy storage devices

[0222] 5 transmission units

[0223] 5.1 Cam

[0224] 5.2 Close the piston

[0225] 5.3 Close the piston rollers

[0226] 5.4 Side View

[0227] 5.5 concave part

[0228] 6-buffer piston

[0229] 7-buffered piston roller

[0230] 8 First Angle Range

[0231] 9. Second angle range

[0232] 10. Close the rotation angle

[0233] 11 Actual rotation angle

[0234] 12. Close the rotation direction

[0235] 13 bearings

[0236] 14 Bearing enclosure as part of the housing

[0237] 20 sensor units

[0238] 21 encoder

[0239] 22 Encoder Fastening Device

[0240] 22.1 Secure the head

[0241] 22.2 Edge

[0242] 22.3 Shape-Matching Components

[0243] 22.4 Tool joint

[0244] 23 sensors

[0245] 24 sensor housing devices

[0246] 24.1 Retaining element

[0247] 24.2 Sensor Circuit Board

[0248] 24.3 Retainer clip

[0249] 24.4 Retaining protrusion

[0250] 24.5 Fastening Spring

[0251] 30 Cover Parts

[0252] 30.1 Fastening pressure plate

[0253] 30.2 Retaining part

[0254] 30.3 Empty space

[0255] 31 end wall

[0256] 32 sidewalls

[0257] 33 covers

[0258] 34-axis open section

[0259] 35-module housing

[0260] 35.1 Module Slot

[0261] 35.2 Module Clip

[0262] 40 modules

[0263] 41 Casing assembly

[0264] 41.1 Inner shell

[0265] 41.2 Outer shell

[0266] 41.3 Spacing retainer

[0267] 41.4 spacing

[0268] 42 batteries

[0269] 43-module circuit board

[0270] 44 data transmission units

[0271] 45 Housing fastening device

[0272] 46 openings

[0273] 50 mounting plate

[0274] 51 Fastening Components

[0275] 52-directional display

[0276] 100 monitoring system

[0277] 101 Evaluation Unit

[0278] 102 external units

[0279] 103-bar device

[0280] 104 strokes

[0281] 105 slide rail

[0282] 200 doors

[0283] 201 hinge

[0284] 202 wall (door frame)

[0285] 203 main closed edge

[0286] Arrangement on the left side of shell A

[0287] Arrangement on the right side of shell B

Claims

1. A door closer (1) for closing a door (200), the door closer comprising: • The housing (2) and the output shaft (3) supported in the housing constitute a fastening rod device (103). • A mechanical energy storage device (4) is located in the housing (2), which loads the output shaft (3) to rotate it, wherein the energy storage device (4) is preferably configured as a spring. • Module (40), the module includes at least one battery (42) and / or a data transmission unit (44) for transmitting data. • The housing (2) includes a first end side (2.1) that faces the hinge (201) of the door (200) when the door closer (1) is installed. • The housing (2) includes a second end side (2.2), which is opposite to the first end side (2.1). • And wherein the module (40) is disposed next to the second end side (2.2) of the housing (2), The door closer (1) is configured to be disposed at a door (200) or wall (202) in the right-side and left-side arrangements (A, B), wherein the door closer (1) is configured such that the module (40) is disposed next to the second end side (2.2) of the housing (2) in the right-side and left-side arrangements (A, B) and is at least indirectly connected to the housing (2). The door closer (1) also includes a mounting plate (50) having fastening elements (51), particularly holes, for fastening, in particular screwing, the housing (2). • The mounting plate (50), the housing (2), and the module (40) are configured such that the housing (2) can be fastened to the mounting plate (50) on the left and right sides without rotating the mounting plate (50). • In the arrangement (A) on the left side of the housing (2), the module (40) is positioned above the mounting plate (50) on the right side of the housing (2). • And in the arrangement (B) on the right side of the housing (2), the module (40) is positioned on the left side of the housing (2) above the mounting plate (50).

2. The door closer (1) according to claim 1. In the arrangements on the right and left (A, B), the arrangement of the module (40) and the arrangement of the housing (2) are different from each other. In particular, the door closer (1) includes a connecting mechanism through which the module (40) can be arranged in a different arrangement relative to the housing (2).

3. The door closer (1) according to any one of the preceding claims. The door closer (1) is configured such that the housing (2) is oriented with a first housing orientation in the case of a left-side arrangement (A) and with a second housing orientation that rotates relative to the first housing orientation in the case of a right-side arrangement (B), preferably as such; and / or the door closer (1) is configured such that the module (40) is oriented with a first module orientation in the case of a left-side arrangement (A) and with a second module orientation that rotates relative to the first module orientation in the case of a right-side arrangement (B), preferably as such.

4. The door closer (1) according to any one of the preceding claims. The door closer (1) is configured such that the data transmission unit (44) is disposed away from the housing (2) in the left and right arrangements (A, B), and / or the module (40) includes a housing device (41) for the battery (42), wherein the data transmission unit (44) is fixedly connected to the housing device (41).

5. The door closer (1) according to any one of the preceding claims. The housing device (41) includes an opening (46) for replacing the battery (42), and the door closer (1) is configured such that, in the arrangement on the right and left sides (A, B), the opening (46) is oriented in the same direction as the door (200), particularly forward.

6. The door closer (1) according to any one of the preceding claims, the door closer comprising a sensor (23), the sensor being particularly configured to detect an encoder (21) fastened to or formed at the output shaft (3), wherein the sensor (23) is connected to the module (40) for data and / or current transmission, particularly via electrical lines.

7. The door closer (1) according to claim 6. The door closer (1) is configured such that the sensor (23) is located next to one side of the housing (2) in the case of the arrangement on the right side (B), and next to the opposite side of the housing (2) in the case of the arrangement on the left side (A).

8. The door closer (1) according to claims 1 to 7. The mounting plate (50) and the housing (2) are configured such that the housing (2) can be fastened to the mounting plate (50) on the left side in one orientation and on the right side in an orientation rotated by 180°, and / or the module (40) can be disposed, in particular fastened, to the mounting plate (50), preferably, the module (40) can be disposed, in particular fastened, to the mounting plate (50) on both the left and right sides.

9. The door closer (1) according to any one of the preceding claims. The output shaft (3) is disposed in the half of the housing (2) facing the first end side (2.1), and / or the energy storage device (4) is disposed between the output shaft (3) and the second end side (2.2).

10. The door closer (1) according to any one of the preceding claims, the door closer comprising a cover (30) covering the housing (2) and the module (40).

11. The door closer (1) according to claim 10. The module (40) is disposed, particularly fastened, to the cover (30), preferably to the end wall (31) of the cover (30), and particularly preferably selectively disposed, particularly fastened, to the two end walls (31) of the cover (30).

12. The door closer (1) according to any one of the preceding claims. The module (40) is detachable from the cover (30) and / or, especially for battery replacement, from the mounting plate (50) without damage, preferably detachable without tools.

13. The door closer (1) according to any one of the preceding claims. The output shaft (3) is exposed on two opposite sides of the housing (2) to selectively fasten the rod device (103).

14. A method (300) for installing a door closer (1), particularly a door closer (1) according to any one of the preceding claims. The door closer (1) includes a housing (2) and an output shaft (3) supported in the housing, the door closer includes a mechanical energy storage device in the housing 2, the door closer includes a module (40) having a housing device (41) for the at least one battery (42) and / or a data transmission unit (44) for transmitting data, and the method (300) includes the following steps: • The housing (2) is positioned at a door (200) or a wall (202) such that the first end side (2.1) of the housing (2) faces the hinge (201) of the door (200). • The module (40) is placed next to the second end side (2.2) of the housing (2) opposite to the first end side (2.1).

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