Output shaft for a door operator, door operator and method for changing a possible installation position of a door operator

Abstract

Output shaft (10) for a door operator (120), comprising an output pulley (20) with a first (24) and a second end face (26), wherein the first (24) and the second end face (26) of the output pulley (20) are opposite one another with respect to a rotational axis (11) of the output shaft (10), wherein furthermore the output shaft (10) can be brought into operative connection with a lever arm (121) of the door operator (120) and the output pulley (20) can be brought into operative connection with a damper device and / or a drive of the door operator (120), characterized in that the output shaft (10) has a first (40) and a second receiving element (50) as well as an adapter element (30),wherein the first receiving element (40) is arranged on the first end face (24) of the driven pulley (20) and has a first receptacle (41) on a side facing away from the first end face (24), and wherein the second receiving element (50) is arranged on the second end face (26) of the driven pulley (20) and has a second receptacle (51) on a side facing away from the second end face (26), wherein the first (41) and the second receptacle (51) are designed to receive the adapter element (30), and further wherein the adapter element (30) is connectable to the lever arm (121) of the door operator (120) and is arranged in the first (40) or the second receptacle (50).

Description

[0001] The present invention relates to an output shaft for a door operator and a door operator with an output shaft. Furthermore, the invention relates to a method for changing a possible mounting position of a door operator.

[0002] Door operators are used in modern building technology to assist the opening and / or closing of doors and / or to do this at least partially automatically. For example, in the door operator, an energy storage device can be pre-tensioned by manually opening the door, the stored energy from which is then used to automatically close the door. Furthermore, such a door operator can be provided with a damping device that influences this closing in such a way that, for example, the door closes at a speed that depends on the angle of rotation. This can in particular prevent the door from closing undesirably quickly and uncontrollably. An output shaft is used for a force-transmitting connection between a drive and / or a damping device and a lever arm that is connected to the door.Known output shafts are often manufactured as cold-formed or forged parts. Machining, with correspondingly high material consumption, is also known for the production of such an output shaft. WO 2013 / 079161 A1 discloses an output shaft with a plug-in connection.

[0003] It is known that such door operators can be arranged in various mounting positions relative to a door. In particular, a hinge-side mounting of the door operator (passage direction in the closing direction of the door or on the side on which the door hinges are visible) or a hinge-opposite mounting of the door operator (passage direction in the opening direction of the door or on the side on which the door hinges are not visible) is conceivable, depending on the conditions of the installation site. The arrangement of the door operator on the lintel or on the door itself is also conceivable. These various mounting positions differ in particular in that they require different force transmission between the lever arm and the drive and / or damping device of the door operator for the same functionality with regard to opening and / or closing the door. The force transmission is exactly opposite, in particular with regard to the direction of rotation of the output shaft.

[0004] For existing door operators, it is therefore common practice to use different door operators, or at least different output shafts, especially for the hinge-side and opposite-hinge installations. Changing the power transmission, which can be determined, for example, by the shape of an output pulley as part of the output shaft, also requires replacing the entire output shaft. This is complex and, in particular, represents a high cost factor.

[0005] It is therefore an object of the present invention to at least partially remedy the disadvantages described above. In particular, the object of the present invention is to provide a drive shaft, a door operator, and a method for changing a possible mounting position of a door operator, which make it possible to provide a door operator for use in various mounting positions in a simple and cost-effective manner.

[0006] The above object is achieved by an output shaft having the features of independent claim 1, by a door operator having the features of claim 9, and by a method for changing a possible mounting position of a door operator having the features of claim 10. Further features and details of the invention emerge from the subclaims, the description, and the drawings. Features and details described in connection with the output shaft according to the invention naturally also apply in connection with the door operator according to the invention and the method according to the invention, and vice versa, so that with regard to the disclosure of the individual aspects of the invention, reference is always made to each other.

[0007] According to a first aspect of the invention, the object is achieved by an output shaft for a door operator, comprising an output pulley with a first and a second end face, wherein the first and the second end face of the output pulley are opposite one another with respect to a rotational axis of the output shaft, wherein furthermore the output shaft can be brought into operative connection with a lever arm of the door operator and the output pulley can be brought into operative connection with a damper device and / or a drive of the door operator.An output shaft according to the invention is characterized in that the output shaft has a first and a second receiving element and an adapter element, wherein the first receiving element is arranged on the first end face of the output pulley and has a first receptacle on a side facing away from the first end face, and wherein the second receiving element is arranged on the second end face of the output pulley and has a second receptacle on a side facing away from the second end face, wherein the first and the second receptacle are designed to receive the adapter element and wherein, furthermore, the adapter element is connectable to the lever arm of the door operator and is arranged in the first or the second receptacle.

[0008] The output shaft according to the invention, after installation in a door operator, is designed to transmit a force between a lever arm of the door operator and a drive and / or a damper device of the door operator. For this purpose, the output disk can be designed, for example, as a cam disk, particularly a heart-shaped one, to which the damper device engages via rollers, thus inhibiting a rotational movement of the output shaft about its rotational axis and thereby influencing the speed of the door closing, particularly depending on the angle of rotation, via the lever arm connected to the door.

[0009] According to the invention, the output shaft is constructed from several parts. A first and a second receiving element are arranged on the two end faces of the output pulley, which are opposite one another with respect to a rotational axis of the output shaft. It is essential to the invention that both receiving elements each have a receptacle on their side facing away from the output pulley, in which an adapter element can be arranged. The adapter element can thus be arranged both in the first receptacle of the first receiving element and in the second receptacle of the second receiving element. This results in two possible variants of the output shaft, one with the adapter element in the first receptacle of the first receiving element, the other with the adapter element in the second receptacle of the second receiving element, both of which can be installed in the door operator.Since the adapter element is designed to be connected to the lever arm of the door operator and the power is transmitted within the door operator to a damping device and / or from a drive via the output pulley, this results in two different power transmissions that are exactly opposite with regard to the direction of rotation of the output shaft. As a result, a door operator having such an output shaft according to the invention can be mounted both on the hinge side and opposite the hinge side, or both on the door leaf and on the door lintel, depending on which receiving element the adapter element is arranged. If the mounting position is changed, it is not necessary to replace the entire output shaft. Such a change or adjustment of the intended mounting position can preferably be carried out during manufacture of the door operator in the manufacturing plant.A subsequent change to the intended mounting position, for example, before final assembly on a construction site, is of course also possible. This can save time and money during assembly or production of the door operator.

[0010] Furthermore, in an output shaft according to the invention, the output shaft can be provided with a connecting element, wherein the connecting element extends through at least the adapter element, the first receiving element, the second receiving element, and the output disk and fixes them together. Such a connecting element allows an output shaft according to the invention to be held together particularly easily and securely. In particular, by extending through the individual parts of the output shaft, it can be ensured that none of the components detaches from the output shaft. An unintentional separation of the individual parts of the output shaft can thus be reliably prevented.

[0011] According to a preferred further development of an output shaft according to the invention, it can further be provided that the connecting element is designed as a screw with a head contour, wherein the screw is in particular screwed into a thread in the adapter element and wherein furthermore the head contour is arranged on one receiving element and the adapter element on the other receiving element. A connecting element designed as a screw represents a mechanically particularly simple connecting element. By screwing the connecting element designed as a screw into the adapter element, these two components are securely fixed to one another. The connecting element is designed to engage through the receiving elements and the driven disk. The head contour of the connecting element is arranged in the receptacle of the receiving element which, with regard to the driven disk, is opposite the receiving element with the adapter element.Of course, in addition to the head contour, a countersunk washer can be arranged in the receptacle of the receiving element to support the head contour. The head contour in the receptacle of one receiving element and the adapter element in the receptacle of the other receiving element, which can be used in particular as a screw nut, ensure that the parts of the output shaft are particularly securely fixed to one another.

[0012] An output shaft according to the invention can also be designed such that the first and second receptacles each have a non-circular first inner contour and the adapter element has an adapter pin, wherein the adapter pin is designed for positive contact with the first inner contour. Non-circular within the meaning of the invention can, for example, be the shape of a polygon or the shape of an ellipse. The positive contact makes it possible to transmit a rotary movement particularly well between the adapter pin and thus the adapter element and the respective receptacle used. A particularly good and effective power transmission between these components and thus also between the lever arm and the drive and / or the damping device of the door operator can thereby be improved.

[0013] Furthermore, in an output shaft according to the invention, it can preferably be provided that the output pulley has an opening with a non-circular second inner contour and the first receiving element has a non-circular receiving pin, wherein the receiving pin is designed for positive contact with the second inner contour. Non-circular in the sense of the invention means that the second inner contour and the receiving pin can, for example, have the shape of a polygon or the shape of an ellipse. A rotary movement can also be transmitted particularly well between the receiving pin and the opening in the output pulley thanks to the positive contact. Power transmission between these components, and thus also between the lever arm and the drive and / or the damping device of the door operator, can thus be designed to be particularly simple in mechanical terms.

[0014] Furthermore, an output shaft according to the invention can be designed such that the output pulley has an opening with a non-circular second inner contour and the adapter element has a non-circular adapter pin, wherein the adapter pin is designed for positive contact with the second inner contour. In this case, too, non-circular within the meaning of the invention means that the second inner contour and the adapter pin can have, for example, the shape of a polygon or the shape of an ellipse. The positive contact makes it possible to ensure particularly good transmission of a rotary movement between the adapter pin and thus the adapter element and the output pulley. A particularly good and effective transmission of force between these components and thus also between the lever arm and the drive and / or the damping device of the door operator can thereby be further improved.

[0015] Of course, and preferably, a combination of the various described configurations of the non-circular surfaces can also be provided for an output shaft according to the invention. It is essential in each case that the individual contacting surfaces are coordinated with one another in such a way that they form a positive connection. This makes it particularly easy to ensure a safe and effective transmission of a force between the lever arm and the drive or damping device of the door operator, which requires a rotational movement of the output shaft, and thus the functionality of the door operator.

[0016] Furthermore, in an output shaft according to the invention, it can be provided that the output disk has an opening, that the first receiving element and / or the second receiving element is designed to engage through the opening, and that the first and the second receiving element are connected to one another, in particular in a force-fitting and / or form-fitting manner. By engaging through the opening in the output disk, the output disk can be arranged particularly securely between the two receiving elements, and unwanted radial displacement of the components against one another can thus be reliably prevented. The connection, in particular a force-fitting and / or form-fitting, of the two receiving elements can be formed, for example, by riveting, screwing, or clamping. The two receiving elements can also be designed, at least in sections, for mutual form-fitting contact.Of course, other joining methods, such as soldering or welding, are also conceivable. This can further increase the stability of an output shaft according to the invention.

[0017] Furthermore, an output shaft according to the invention can be designed such that the output shaft has at least one bearing device, in particular a ball, roller, or plain bearing, which is designed for friction-free or at least low-friction mounting of the output shaft in the door operator. Such a bearing device can prevent or at least reduce frictional forces that arise in the door operator when the door is opened and closed. The service life of a door operator with an output shaft according to the invention can thereby be increased. Of course, more than one such bearing device can also be provided. For example, two ball bearings can be used as the bearing device, each arranged radially outward on the receiving elements.Such an arrangement, which is symmetrical with respect to the output pulley, can, for example, not only reduce friction but also reliably prevent the output shaft from tilting within the door operator.

[0018] According to a second aspect of the invention, the invention is achieved by a door operator with an output shaft, a lever arm, and a damper device and / or a drive, wherein the lever arm and the output shaft, as well as the output shaft and the damper device and / or the drive, are operatively connected. A door operator according to the invention is characterized in that the output shaft is designed according to the first aspect of the invention. All advantages described with regard to an output shaft according to the first aspect of the invention thus automatically also apply to a door operator equipped with such an output shaft according to the first aspect of the invention.In particular, with a door operator according to the invention, it is possible to change from a design for hinge-side mounting to a design for opposite-hinge mounting or between a design for mounting on the door leaf and a design for mounting on the door lintel simply by changing the position of the adapter element of the output shaft from an arrangement in the first receptacle of the first receptacle element to the second receptacle of the second receptacle element or vice versa. Such a change or adjustment of the intended mounting position can preferably already be carried out during the manufacture of the door operator in the manufacturing plant. This also makes it particularly easy to change whether the door operator exerts a pushing or pulling function on the door possible without having to completely replace the output shaft.Replacing the entire output shaft can be avoided. A subsequent change to the intended mounting position, for example, before final assembly on a construction site, is of course also possible. This represents a significant reduction in the costs and effort involved in such a conversion.

[0019] According to a third aspect of the invention, the object is achieved by a method for changing a possible mounting position of a door operator, wherein the door operator is designed according to the second aspect of the invention. A method according to the invention is characterized by the following steps: a) Removing the output shaft from the door operator, b) removing the adapter element from the receptacle of the first or second receptacle element in which the adapter element is arranged, c) Installation of the adapter element into the receptacle of the second or first receptacle element in which the adapter element was not arranged and d) Installation of the output shaft into the door operator.

[0020] A door operator according to the second aspect of the invention has an output shaft according to the first aspect of the invention. All the advantages described for an output shaft according to the first aspect of the invention or a door operator according to the second aspect of the invention thus also apply to a method performed by a door operator according to the invention.

[0021] The possible mounting positions of the door operator, on the door lintel or on the door leaf, and in particular on the hinge side or the opposite hinge side, are determined by how the output shaft and, in particular, the output shaft's output pulley are arranged within the door operator. The shape of the output shaft determines how quickly a door closes, particularly depending on the angle of rotation, for example, through interaction with a damping device of the door operator.

[0022] In a first step a), the output shaft is removed from the door operator. Of course, the output shaft of the door operator can also already be in a removed form. The adapter element is arranged in the respective receptacle of the first or second receptacle element. In step b) of the process, the adapter element is removed from this receptacle. The adapter element and the rest of the output shaft are therefore separate from one another. In the next step c), the adapter element is installed in the receptacle of the other receptacle element. Steps b) and c) thus change the installation location of the adapter element. After completing step c), the adapter element is arranged on the receptacle element on which it was not arranged at the beginning of the process. In a final step d) of the process, the reassembled output shaft is installed back into the door operator.By converting a door operator according to a method according to the invention, it is possible to change the power transmission between a lever arm, to which the adapter element of the output shaft can be attached, and a damping device and / or a drive inside the door operator such that this power transmission is exactly opposite to the direction of rotation of the output shaft, as is necessary for operation of the door operator in hinge-side and opposite-hinge installation. Using a method according to the invention, such a conversion can be carried out particularly easily. In particular, it is not necessary to replace an output shaft in order to convert a door operator intended for hinge-side installation into one intended for opposite-hinge installation. The same naturally applies when converting between installation on the door leaf and installation on the door lintel.This can save time and money with such a change. Particularly preferably, such a modification or adjustment of the intended mounting position can be carried out according to a method according to the invention during the manufacture of the door operator at the manufacturing plant. Furthermore, a method according to the invention also enables and simplifies a subsequent change to the intended mounting position, for example, before final assembly on a construction site.

[0023] The present invention is explained in more detail with reference to the accompanying drawings. They show schematically: Fig. 1a an exploded view of an output shaft for a first mounting position of a door operator, Fig. 1b an exploded view of an output shaft for a second mounting position of a door operator, Fig. 2a Components of an output shaft for a first mounting position of a door operator, Fig. 2b Components of an output shaft for a second mounting position of a door operator, Fig. 3a an output shaft for a first mounting position of a door operator, Fig. 3b an output shaft for a first mounting position of a door operator, Fig. 4a a sectional view of an output shaft for a first mounting position of a door operator, Fig. 4b a sectional view of an output shaft for a second mounting position of a door operator, Fig. 5a a door operator in a hinge-side mounting position on a door leaf, Fig. 5b a door operator in a hinge-side mounting position on a door lintel, Fig. 5c a door operator in a hinge-side mounting position on a door leaf and Fig. 5d a door operator in a hinge-side mounting position on a door lintel.

[0024] Elements with the same function and mode of action are listed in the Fig. 1a, b, Fig. 2a, b, Fig. 3a, b, Fig. 4a, b and Fig. 5a, b, c, d are each provided with the same reference numerals.

[0025] The Fig. 1a, b, Fig. 2a, b, Fig. 3a, b and Fig. 4a, b each show an output shaft 10 according to the invention in different representations, wherein the output shafts of the individual representations are in Fig. 1, Fig. 2, Fig. 3 and Fig. 4 in that they allow different mounting positions, in particular a hinge-side and a hinge-opposite mounting or a mounting on a door leaf 131 or a door lintel 130, of a door operator 120.

[0026] The Fig. 1a shows an exploded view of an output shaft 10 according to the invention with the rotational axis 11 indicated. On the side of the first end face 24 of the output pulley 20, a first receiving element 40 is provided, which is received by a bearing device 60, here, for example, a ball bearing. The first receiving element 40 has a first receptacle 41, which serves to receive an adapter pin 35 of the adapter element 30. The adapter element 30 further has a lever receptacle 38, to which a lever arm 121 of a door operator 120 (not shown) can be arranged. The receptacle 41 of the first receiving element 40 further has a first inner contour 42, which is designed to positively receive the adapter pin 35. This ensures particularly good and secure power transmission within the output shaft 10.An outer boundary of the receptacle 41 is further designed such that it can be received by the bearing device 60. A first disk 80 is arranged between the driven disk 20 and the bearing device 60, wherein during assembly a portion of the bearing device 60 leans against the disk 80, which in turn leans against the driven disk 20. A second bearing device 60, which in the embodiment shown is also designed as a ball bearing, is arranged on the side of the second end face 26 of the driven disk 20, wherein this bearing device 60 receives the second receiving element 50. A disk 90 is arranged between the driven disk 20 and the second bearing device 60, wherein during assembly a portion of the second ball bearing 70 leans against the disk 90, which in turn leans against the driven disk 20. The second receiving element 50 has a second receptacle 51 in which a countersunk washer 100 is arranged.All individual parts have openings or through-holes, for example the through-hole 25 of the output pulley 20, which, in the assembled state of the output shaft 10, are positioned one above the other such that the connecting element 110 extends from the countersunk disk 100 at least into the adapter element 30, wherein the connecting element 110 is preferably designed as a screw and is screwed into an internal thread of the adapter element 30. The connecting element 110 can also extend out of the adapter element 30, as in the embodiment shown. A connection to a lever arm 121 of a door operator 120 (not shown) can thereby be facilitated and improved. A head contour 111 of the connecting element 110 engages in a form-fitting manner with a corresponding counter-contour of the countersunk disk 100.A receiving pin 45 of the first receiving element 40 extends through the first disk 80 and through the opening 25 of the output disk 20, at least partially into the second receiving element 50. The opening 25 has a second inner contour 27, which is designed to positively receive the receiving pin 45. This ensures particularly good and secure power transmission to the output disk 20. The second receiving element 50, in particular a third inner contour 53 of the second receiving element 50, also positively receives the receiving pin 45 to ensure a rotationally secure connection and effective power transmission within the output shaft 10.

[0027] Fig. 1b shows an output shaft 10 which, in contrast to the one in Fig. 1a is provided for a different mounting position of a door operator 120 (not shown). The mounting positions can in particular be a hinge-side or a hinge-opposite mounting position and / or a mounting on a door leaf 131 or on a door lintel 130 (each not shown). The components used for the construction of the two output shafts 10 shown are identical and already with respect to Fig. 1a. An output shaft 10 according to the invention is characterized in that the adapter element 30 can be arranged both in the first receptacle 41 of the first receiving element 40 and in the second receptacle 51 of the second receiving element 50. Thus, in the Fig. 1b, the adapter element 30 with its adapter pin 35 is arranged in the second receptacle 51 of the second receptacle element 50. Analogous to the first receptacle 41, the second receptacle 51 also has a first inner contour 52, which is designed to form a positive connection with the adapter pin 35. In this embodiment of an output shaft 10 according to the invention, a secure and effective power transmission from a lever arm 121 of the door operator 120 (not shown) and the output shaft 10 and thus the output pulley 20 can thus be ensured. In order to ensure a secure cohesion of the output shaft 10, a connecting element 110 is also provided in this embodiment, which extends from a countersunk washer 100, which is arranged here in the first receptacle 41 of the first receptacle element 40, to the adapter element 30 in the second receptacle 51 of the second receptacle element 50.In summary, an output shaft 10 according to the invention thus makes it possible to change a possible mounting position of the door operator 120, in which the output shaft 10 is installed, by simply converting the output shaft 10, in particular converting the adapter element 30 from the first receptacle 41 of the first receptacle element 40 to the second receptacle 51 of the second receptacle element 50 or vice versa. This is achieved in particular because, by changing the mounting position of the adapter element 30, two output shafts 10 can be provided which behave in exactly opposite ways with regard to power transmission with respect to the direction of rotation of the output shaft 10. Replacing the output shaft 10 is not necessary.

[0028] In the Fig. 2a, b, the essential components of an output shaft 10 according to the invention are shown individually. The components are shown in Fig. 2a in a view from above, in Fig. 2b is shown in a view from below. Unless otherwise stated, both figures are used Fig. 2a, b. Fig. 2a, b shows the adapter element 30, the base body of which is preferably a turned part, wherein the adapter element 30 has an adapter pin 35 whose shape is non-circular. This non-circular shape consists, for example, of a polygonal line or an ellipse. The adapter element 30 has a central opening, which is preferably designed as a through-hole. Furthermore, on the side opposite the adapter pin 35, a lever receptacle 38 is formed for a lever arm 121 of a door operator 120 (not shown), which is connected, for example, to a slide piece of a slide rail. The receptacle 38 also has a non-circular shape, for example a square shape. Of course, the lever receptacle 38 can also be designed as a pin shaped to fit the corresponding lever arm 121.Furthermore, the first receiving element 40 is shown, the base body of which is preferably also a turned part, wherein the receiving element 40 has a receiving pin 45 whose shape is non-circular. This non-circular shape consists, for example, of a polygonal line or an ellipse. Centrally, the receiving element 40 has an opening, which is preferably designed as a through-bore. On the side of the first receiving element 40 opposite the receiving pin 45, a first receptacle 41 is formed. This first receptacle 41 has a first inner contour 42 with a non-circular shape, which has, for example, the shape of a polygonal line or the shape of an ellipse. In particular, the first receptacle 41 is designed with its first inner contour 42 for the form-fitting reception of the adapter pin 35. Furthermore, an output pulley 20 is shown, wherein in addition to the opening 25, the two end faces 24, 26 of the output pulley 20 are shown.The two end faces 24, 26 limit the material thickness of the output pulley 20. The opening 25 has a second inner contour 27, which is formed from a non-circular shape, which may, for example, have a polygonal or elliptical shape. In particular, in this embodiment of an output shaft 10 according to the invention, the opening 25 of the output pulley 20 is formed by the second inner contour 27 for positively receiving the receiving pin 45.

[0029] Finally, a second receiving element 50 is shown, the base body of which is preferably a turned part and has the shape of a sleeve. A second receptacle 51 with a first inner contour 52 and a third inner contour 53 are formed on the second receiving element 50. The second receptacle 51 with its first inner contour 52 is designed to positively receive the adapter pin 35, and the third inner contour 53 is designed to positively receive the receiving pin 45. The first inner contour 52 and the third inner contour 53 are non-circular, whereby these non-circular shapes can be formed, for example, from a polygonal line or an ellipse.

[0030] The Fig. 3a, b show the Fig. 1a, b in assembled condition and in perspective view. The two output shafts 10 differ in particular only in which of the two receiving elements 40, 50 the adapter element 30 is arranged. Fig. 3a the adapter element 30 in the first receptacle 41 of the first receiving element 40, in the Fig. 3b in the second receptacle 51 of the second receiving element 50. In both embodiments, the receiving elements 40, 50 are received in bearing devices 60, which are designed in particular as ball bearings. The driven pulley 20 is arranged between the receiving elements 40, 50. A connecting element 110 is designed in such a way that it extends from a countersunk disk 100, which is arranged in one of the two receptacles 41 or 51, to the adapter element 30, which is arranged in the other receptacle 51 or 41. The connecting element 110 preferably protrudes from the adapter element 30 in order to be able to connect a lever arm 121 (not shown) of a door operator 120, for example, to a sliding piece of a slide rail 122 (not shown).

[0031] The Fig. 4a, b show the respective Fig. 3a, b in a full section. On the side of the first end face 24 of the output pulley 20, the bearing device 60, designed as a ball bearing, is arranged. A partial region of the bearing device rests against a first side of the pulley 80, which in turn rests with its further second side against the first end face 24 of the output pulley 20. The bearing device 60 accommodates the first receiving element 40, with a partial region of the first receiving element 40 also resting against the side of the pulley 80 on which the bearing device 60 rests. The receiving pin 45 of the first receiving element 40 projects through the opening 25 of the driven pulley 20, in particular in a form-fitting manner with a second inner contour 27 of the opening 25, into the second receiving element 50, wherein the receiving pin 45 of the first receiving element 40 is at least partially received in a form-fitting manner by the third inner contour 53 of the second receiving element 50.The connection, in particular a force-fitting and / or form-fitting connection, of the two receiving elements 40, 50 can be formed, for example, by riveting, screwing, or clamping. Of course, other connection methods, such as soldering or welding, are also conceivable. Preferably, the receiving pin 45 protrudes from the third inner contour 53. The second receiving element 50 is received by a further bearing device 60, wherein a partial area of ​​the bearing device 60 rests on one side of the disk 90, and the second receiving element 50 also rests with a partial area on this side of the disk 90. ​​The disk 90 rests with its further second side against the second end face 26 of the output disk 20.

[0032] According to the invention, the adapter element 30 is optionally arranged in the first receptacle 41 of the first receiving element 40, as shown in Fig. 4a, or the second receptacle 51 of the second receiving element 50, as shown in Fig. 4b. Two different output shafts 10 can thus be created, which differ in terms of their power transmission properties, which are exactly opposite with regard to the direction of rotation of the output shaft 10. As a result, a door operator 120 having such an output shaft 10 according to the invention can be mounted both on the hinge side and opposite the hinge side, or both on a door leaf 131 and on a door lintel 130 (each not shown), depending on which receiving element 40, 50 the adapter element 30 is arranged on. A countersunk washer 100 is arranged in each of the receptacles 41, 51 in which the adapter element 30 is not arranged.All described components of an output shaft 10 according to the invention have openings or through-holes which, in the assembled state of the output shaft 10, are positioned one above the other in such a way that the connecting element 110 extends from the countersunk washer 100 at least into the adapter element 30, wherein the connecting element 110 preferably extends out of the adapter element 30. A head contour 111 of the connecting element 110 rests in a form-fitting manner against a mating contour of the countersunk washer 100. In particular, the connecting element 110 can be designed as a screw which can preferably be screwed into an internal thread of the adapter element. Adjacent to the adapter element 30, a part of a lever arm 121 of a door operator 120 is also shown.By a positive engagement of the lever arm 121 in the lever receptacle 38 of the adapter element 30 and also by the engagement of the connecting element 110 in the lever arm 121, a safe and effective force transmission between these elements of the door operator can be ensured.

[0033] In the Fig. 5a, b, c, and d each show a door operator 120 according to the invention, in which an output shaft 10 according to the invention is installed. Four mounting options arise due to the possibility of mounting the door operator 120 on the hinge side (passage direction in the closing direction of the door leaf 131 or on the side on which the door hinges 132 are visible) or opposite the hinge side (passage direction in the opening direction of the door leaf 131 or on the side on which the door hinges 132 are not visible), or due to the possibility of mounting the door operator 120 on the door lintel 130 or on the door leaf 131. Preferably, a door operator 120 according to the invention is already provided for the corresponding mounting position in the door operator 120 at the manufacturing plant by a corresponding arrangement of the adapter element 30 on the output shaft 10 (not shown).A subsequent change of the intended mounting position by a simple conversion of the output shaft 10, as is made possible by an output shaft 10 according to the invention, on a construction site before the final assembly of the door operator 120 is of course also conceivable. Fig. 5a, b, c, d each show one of the possible mounting positions, in Fig. 5a a hinge-side mounting on the door leaf 131, in Fig. 5b a hinge-side installation on the door lintel 130, in Fig. 5c a hinge-side installation on the door leaf 131 and in Fig. 5d shows a hinge-side installation on the door lintel 130. Each of the figures shows a side view and a top view of the assembled door operator 120. The door operator 120 or the lever receptacle 38 (not shown) of the output shaft 10 of the door operator 120 is each connected to a slide rail 122 via a lever arm 121. The connection between the lever arm 121 and the slide rail 122 is preferably established via a slide piece (not shown). By means of an output shaft 10 according to the invention, which is installed in a door operator 120 according to the invention, it is possible to change the installation position for which the door operator 120 is intended particularly easily. By simply converting the output shaft 10, whereby only the installation location of the adapter element 30 (not shown) in the receiving elements (40, 50) (not shown) is exchanged, a door operator 120, preferably otherwise unchanged, can be used for all installation positions shown.A complex and costly replacement of the entire output shaft 10 is not necessary. This allows, for example, a belt-to-belt assembly, as described in the . Fig. 5a and Fig. 5d and which requires a pushing operation of the door operator 120, an output shaft 10 with an adapter element 30 in the receptacle 41 of the first receptacle element 40 can be used, as shown for example in the Fig. 3a and 4a respectively. Accordingly, for a hinge-side installation as shown in the Fig. 5b and Fig. 5c and which require a pulling operation of the door operator 120, an output shaft 10 with an adapter element 30 in the receptacle 51 of the second receptacle element 50 can be used, as shown for example in the Fig.3b and 4b, respectively. Because the output shaft 10 remains unchanged except for the replacement of the installation location of the adapter element 30, in particular because the output pulley 20 (not shown) is not changed, the same actuation characteristics result for all mounting positions. A door actuator 120 according to the invention can thus be widely used, particularly regardless of the mounting position. List of reference symbols 10 Output shaft 11 Rotation axis 20 driven pulley 24 first frontal surface 25 Breakthrough 26 second frontal surface 27 second inner contour 30 adapter element 35 adapter pins 38 Lever holder 40 first receiving element 41 first recording 42 first inner contour of the first receiving element 45 locating pins 50 second receiving element 51 second recording 52 first inner contour of the second receiving element 53 third inner contour 60 storage device 80 first disc 90 second disc 100 countersunk washer 110 connecting element 111 Head contour 120 door operators 121 lever arm 122 slide rail 130 Door lintel 131 Door leaf 132 door hinge

Claims

[1] Output shaft (10) for a door operator (120), comprising an output pulley (20) with a first (24) and a second end face (26), wherein the first (24) and the second end face (26) of the output pulley (20) are opposite one another with respect to a rotational axis (11) of the output shaft (10), wherein furthermore the output shaft (10) can be brought into operative connection with a lever arm (121) of the door operator (120) and the output pulley (20) can be brought into operative connection with a damper device and / or a drive of the door operator (120), characterized byin that the output shaft (10) has a first (40) and a second receiving element (50) and an adapter element (30), wherein the first receiving element (40) is arranged on the first end face (24) of the output pulley (20) and has a first receptacle (41) on a side facing away from the first end face (24), and wherein the second receiving element (50) is arranged on the second end face (26) of the output pulley (20) and has a second receptacle (51) on a side facing away from the second end face (26), wherein the first (41) and the second receptacle (51) are designed to receive the adapter element (30), and wherein furthermore the adapter element (30) is connectable to the lever arm (121) of the door operator (120) and is arranged in the first (40) or the second receptacle (50). [2] Output shaft (10) according to claim 1, characterized bythat the output shaft (10) has a connecting element (110), wherein the connecting element (110) passes through at least the adapter element (30), the first receiving element (40), the second receiving element (50) and the output disk (20) and fixes them to one another. [3] Output shaft (10) according to claim 2, characterized by that the connecting element (110) is designed as a screw with a head contour (111), wherein the screw is in particular screwed into a thread in the adapter element (30) and wherein furthermore the head contour (111) is arranged on the one receiving element (40, 50) and the adapter element (30) is arranged on the other receiving element (50, 40). [4] Output shaft (10) according to one of the preceding claims, characterized bythat the first (41) and the second receptacle (51) each have a non-circular first inner contour (42, 52) and the adapter element (30) has an adapter pin (35), wherein the adapter pin (35) is designed for positive contact with the first inner contour (42, 52). [5] Output shaft (10) according to one of the preceding claims, characterized by that the driven pulley (20) has an opening (25) with a non-circular second inner contour (27) and the first receiving element (40) has a non-circular receiving pin (45), wherein the receiving pin (45) is designed for positive contact with the second inner contour (27). [6] Output shaft (10) according to one of the preceding claims, characterized bythat the driven pulley (20) has an opening (25) with a non-circular second inner contour (27) and the adapter element (30) has a non-circular adapter pin (35), wherein the adapter pin (35) is designed for positive contact with the second inner contour (27). [7] Output shaft (10) according to one of the preceding claims, characterized by that the driven pulley (20) has an opening (25), that the first receiving element (40) and / or the second receiving element (50) is designed to pass through the opening (25) and that the first (40) and the second receiving element (50) are connected to one another, in particular in a force-fitting and / or form-fitting manner. [8] Output shaft (10) according to one of the preceding claims, characterized bythat the output shaft (10) has at least one bearing device (60), in particular a ball, roller or plain bearing, which is designed for friction-free or at least low-friction bearing of the output shaft (10) in the door operator (120). [9] Door operator (120) with an output shaft (10), a lever arm (121) and a damper device and / or a drive, wherein the lever arm (121) and the output shaft (10) as well as the output shaft (10) and the damper device and / or the drive are operatively connected, characterized by that the output shaft (10) is designed according to one of the preceding claims. [10] Method for changing a possible mounting position of a door operator (120), wherein the door operator (120) is designed according to claim 9, characterized by following steps: a) Removal of the output shaft (10) from the door operator (120), b) removing the adapter element (30) from the receptacle (41, 51) of the first (40) or the second receptacle element (50) in which the adapter element (30) is arranged, c) installing the adapter element (30) into the receptacle (51, 41) of the second (50) or first receptacle element (40) in which the adapter element (30) was not arranged, d) Installation of the output shaft (10) into the door operator (120).

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