EP2212502B1 - Door actuator with an actuator unit - Google Patents

Abstract

An assembly plate and a method for arranging at least one module in a housing body, including an assembly side for assembly in the housing body and an opposing module housing side for housing the module. According to the invention, the assembly plate has clip pins by means of which the module can be locked in a position on the assembly side as defined by the clip pins.

Description

The present invention relates to a door drive with a drive unit, wherein the drive unit has a transmission with a transmission housing.

Door drives of the type of interest here are often designed as electromechanical or electro-hydraulic door drives and are used to actuate a door leaf of a door assembly. The door operator is mounted, for example, on the lintel, on a wall or on the door leaf, and the actuation of the door leaf via a linkage, which is arranged on an output shaft which extends out of the transmission housing.

The drive unit further comprises an electric motor, so that the transmission for transmitting the rotational movement between the output shaft of the motor and the output shaft of the door drive is arranged to transmit motion (see, for example, the document US 6530178 B1 ).

In such transmissions, the problem arises, depending on the size of the door assembly and the weight of the door leaf often having to provide high torques on the output shaft of the door drive. This creates significant demands on the stiffening of the gear housing to ensure trouble-free and long-term operation of the door drive. Furthermore, the arrangement of the electric motor adjacent to the transmission is very complicated, when the motor is arranged on the carrier body of the door drive and no stiffness-forming connection between the electric motor and the transmission is present. Furthermore, there are known gearbox housing from a variety of items that need to be assembled consuming.

It is therefore the object of the present invention to overcome the above-mentioned disadvantages and to provide a simple mountable gear housing high rigidity.

This object is achieved on the basis of a door drive with a drive unit according to the preamble of claim 1 in conjunction with the characterizing features. Advantageous developments of the invention are specified in the dependent claims.

The invention includes the technical teaching that the transmission housing has at least one first shell element and at least one second shell element, wherein the shell elements for forming a transmission interior against each other can be brought into contact.

The advantage of the embodiment of the transmission housing according to the invention lies in a greatly simplified assembly, since only two shell elements must be brought against each other to the plant. The dividing plane of the gear housing, formed by the abutment plane of the shell elements placed on each other, extends approximately centrally through the gear body.

Door drives usually comprise a mounting plate, via which the door drive is mounted on the lintel or, for example, on the wall. The dividing plane of the shell elements extends approximately perpendicular to the plane of extension of the mounting plate. Both shell elements contribute to the formation of the interior of the transmission, so that none of the shell elements serves merely as a cover element, whereby the increased rigidity of the transmission housing is reached. Arranged in the transmission interior gear shafts with the associated teeth are mounted end-to-end both in the first shell element and in the second shell element. At least one of the shell elements thus has a breakthrough, through which the output shaft of the door drive is led out of the gear housing.

It is advantageous if the shell elements are produced from a cast metal component, from a die-cast metal component or from a plastic injection-molded component. Subsequently, the functional surfaces of the shell elements can be post-machined. These functional surfaces include in particular the surfaces over which the shell elements are brought against each other for conditioning. In the respective contact surface of the shell elements, a circumferential shoulder may be provided, which creates a positive connection of the two shell elements to each other in the manner of a spring and groove connection. Thereby, the rigidity of the gear housing formed by the shell elements is further increased and the positionally accurate alignment of the shell elements to each other is ensured.

Advantageously, the shell elements each have associated Befestigungsanformungen, by means of which the shell elements are preferably connected to each other by screw elements. On a first shell element tab-like projections may be present, which have a through hole through which the screw elements are passed. The second shell element, however, has dome-like Befestigungsanformungen that include a threaded hole into which the screw elements are screwed. If the shell elements brought against each other for conditioning, so are the through holes in the tab-like projections of the first shell element in alignment with the dome-like projections of the second shell element, so that respective screw elements for screwing the shell elements against each other can be screwed into the projections.

Alternatively, the dome-like Befestigungsanformungen have no tapped holes but holes without thread, in which the screw elements, so-called thread-forming, thread-cutting or thread-forming screws, when screwing cut a thread in the respective hole and thus screwed securely.

Furthermore, it is advantageous if at least one of the dome-like fastening projections forms a rear projection, by means of which a defined guidance and / or fixing of at least one electrical line on the transmission housing is made possible. By the projection creates an undercut, which results between the projection and the transmission housing or arranged on the transmission housing components. In this undercut, for example, cables can be used, which extend over the length of the door drive through this. As a result, a defined guidance of electrical lines is made possible without these being either unattached in the door drive or having to be fastened elsewhere by means of further complicated cable fasteners.

According to a further advantageous embodiment of the door drive, the shell elements placed against each other form a receiving tunnel in which a flange element can be received via a slot guide provided in the receiving tunnel. Overall, the shell elements brought into abutment against each other form a closed gear housing, although a receiving tunnel can be provided in which the Flange element is added. The receiving tunnel has a groove guide, which extends in the joining direction of the flange element for attachment to the transmission housing.

If the shell elements brought against each other for conditioning, so the flange member can be inserted via an existing on the flange guide portion in the receiving tunnel. The flange member serves to receive an electric motor, wherein the guide portion is additionally designed for supporting and / or supporting a gear part of the engine, for example in the form of a worm gear, bevel gear, crown gear or the like. Either the flange can first be attached to the transmission housing to then attach the engine to the flange or the engine is already connected to the flange and the flange is mounted together with the engine on the transmission housing. For free mounting of the flange on the gear housing, the guide portion has at least one threaded hole, wherein at least one of the shell elements has an associated screw passage. If the guide section is completely inserted in the receiving tunnel, it can be screwed by means of at least one screw element with the shell elements by passing the screw element through the screw passage and screwed into the threaded hole.

The motor may have a gear screw on the output shaft, so that the guide portion of the flange is configured open at least on one side. Over the open side of the guide section, the worm gear can interact with a worm wheel, which is received transversely to the rotational direction of the worm gear in the gear housing. Due to the inventive design of the receiving tunnel and the flange element accommodated therein, the electric motor is mounted on the transmission housing in a simple manner, so that nevertheless the transmission housing can be designed as a closed housing, wherein the two-sided screw connection of the shell elements with the flange element further increases the rigidity of the overall arrangement of the transmission with the electric motor allows.

It is further provided that the door drive comprises a spring force accumulator and that the gear housing has a receiving surface for receiving the spring force accumulator, which is formed in the joined state of the shell elements by this in a plane. The spring force accumulator can be arranged parallel to the axis of rotation of the output shaft of the electric motor in the mounted state on the transmission housing relative to its elongated extent. The receiving surface for receiving the spring force accumulator is arranged adjacent to the receiving tunnel of the transmission housing, so that the spring energy store can be arranged below the electric motor on the transmission housing.

It can be provided a flange plate, which can be arranged for plan contact on the receiving surface of this. Consequently, the flange plate is located between the receiving surface and the mounting surface provided on the spring force accumulator. From the receiving surface, a collar may extend out, which is composed of formed on the shell elements collar portions to an annular collar and which serves the centering receiving the flange plate by the collar is designed for use in an inserted in the flange plate centering. The collar can pass through the centering opening in the flange plate and engage in a circumferential groove in the mounting surface of the spring force accumulator.

The flange plate can be screwed to the shell elements, wherein the spring energy storage has at least one insertion projection, which is insertable into at least one associated Einsetzausnehmung in the shell elements. As a result, a further centering of the spring force accumulator is provided on the shell elements, wherein a further increase in the overall rigidity of the transmission housing is achieved by screwing the flange plate with two shell elements and the use of the collar in the centering hole in the flange. The shell elements can not be pressed apart in the transverse direction, since the collar sections each extend into the centering opening, wherein the stiffness-increasing arrangement of the flange plate on the shell elements by the screw also has a stiffness-increasing effect.

An additional function of the gear housing is achieved in that the shell elements each have upper surface trained flat surface areas that extend in a common plane surface when brought into contact with each other shell elements. This provides the ability to route a ribbon cable over the transmission housing passing through the door drive.

Furthermore, an incremental encoder can be provided, wherein at least one of the shell elements is designed to receive the incremental encoder, which is preferably arranged on the outside of the corresponding shell element. In the shell member receiving the incremental encoder, there may be a shaft passage through which a transmission shaft extends to cooperate with the incremental encoder.

The incremental encoder can be mounted by means of a latching application, which is attached to the housing of the incremental encoder. The Rastanformung can engage in a recess, which is present on the shell element. Finally, the housing of the incremental encoder can be attached by a screw pin position accurate and captive on the corresponding shell element.

In addition, it is provided that a radio unit can be attached to at least one of the shell elements. The radio unit is for wireless communication of the control of the door operator with an external communication means. For arranging the radio unit, the corresponding shell element has a fixing dome, in which, as already described above with respect to the dome-like Befestigungsanformungen, here also a bore with or without internal thread is introduced, via which the radio unit can be screwed to the shell element.

Door operators often have a system carrier, wherein the gear is screwed or locked to the system carrier. In order to improve, together with the flat surface formed by the shell elements, a guide of the ribbon cable through the entire door drive, the system carrier may also comprise a ribbon cable guide. In order to implement an advantageous arrangement of the respective components of the door drive, a plurality of locally separate in the drive electronic units may be provided, which are electrically connected to each other by means of the ribbon cable. Consequently, a secure guidance of the ribbon cable within the door drive is required. The ribbon cable guide of the system carrier may include a fork-like Anformung in which the ribbon cable can be used.

Further, measures improving the invention will be described in more detail below together with the description of a preferred embodiment of the invention with reference to FIGS.

Figur 1

eine perspektivische Ansicht eines Ausführungsbeispiels des Getriebegehäuses eines Türantriebs, wobei die Schalenelemente und das Flanschelement im nicht montierten Zustand dargestellt sind,

Figur 2

perspektivische Ansicht des Getriebegehäuses mit den Schalenelementen, die gegeneinander zur Anlage gebracht sind,

Figur 3

eine perspektivische Ansicht eines ersten Schalenelementes ohne die Anordnung des Inkrementalgebers und der Funkeinheit,

Figur 4

eine perspektivische Ansicht des Schalenelementes gemäß Figur 3 mit der Anordnung des Inkrementalgebers und der Funkeinheit,

Figur 5

eine perspektivische Ansicht des Getriebegehäuses sowie der Montageanordnung des Federkraftspeichers,

Figur 6

eine ausschnittsweise perspektivische Ansicht des Türantriebs mit einer Flachbandkabelführung zur Führung eines Flachbandkabels und

Figur 7

ein abgewandeltes Getriebegehäuse.

Show it:

FIG. 1

a perspective view of an embodiment of the transmission housing of a door drive, wherein the shell elements and the flange member are shown in the unassembled state,

FIG. 2

perspective view of the gear housing with the shell elements which are brought against each other,

FIG. 3

a perspective view of a first shell element without the arrangement of the incremental encoder and the radio unit,

FIG. 4

a perspective view of the shell element according to FIG. 3 with the arrangement of the incremental encoder and the radio unit,

FIG. 5

a perspective view of the gear housing and the mounting arrangement of the spring force memory,

FIG. 6

a fragmentary perspective view of the door drive with a ribbon cable guide for guiding a ribbon cable and

FIG. 7

a modified gearbox.

In FIG. 1 an embodiment of a transmission housing 2 for a door drive is shown in a perspective view. The transmission housing 2 comprises a first shell element 3 and a second shell element 4. The shell elements 3 and 4 are shown spaced apart from one another and can be brought into contact with one another in such a way that the transmission housing 2 forms a transmission interior 5. A plurality of transmission shafts can be accommodated in the interior of the transmission 5 so that a drive formed by an electric motor acts on an output shaft of the door drive, which can extend out of the transmission housing 2 through the breakthrough 34 shown.

Furthermore, a flange 9 is shown, on which a guide portion 11 connects. The guide section 11 can be inserted into a receiving tunnel 8, wherein a positionally accurate attachment of the flange element 9 via the corresponding geometry of the guide section 11 is made possible by a groove guide 10 in the respective half-shell 3, 4. The flange member 9 serves to receive the electric motor, so that the motor output shaft may extend into the guide section 11. The guide portion 11 has an opening side 38, wherein on the engine output shaft a worm gear can be placed, which is accessible through the opening side 38 so that the worm gear can be brought into engagement with a worm which rotates about the worm gear 39 in the shell elements 3 and 4 is recorded.

The shell elements 3 and 4 can be screwed together via Befestigungsanformungen 6a and 6b. The Befestigungsanformungen 6b are formed as tab-like projections with a through hole, wherein the Befestigungsanformungen 6 a are designed as dome-like projections in which a threaded hole is introduced. If the shell elements 3 and 4 are brought into abutment against each other, then the shell elements 3 and 4 can be screwed together via the attachment formations 6a and 6b.

In the contact surfaces of the shell elements 3 and 4, which are brought against each other for conditioning, a circumferential shoulder 40 is provided. This results in a positive engagement of the shell elements into one another, whereby an increase in the overall rigidity of the transmission housing 2 is achieved. A further increase in the overall stiffness results from the screw connection or the in FIG. 1 In the guide section 11 is preferably formed on each side of the guide portion 11 in each case in the direction of a respective shell element 3, 4 protruding projection. When placing the respective shell element 3, 4, the respective projection in a corresponding insertion opening 13 of the respective half-shell 3, 4 preferably engages positively and centered and positioned so preferably at the same time the guide portion 11 on the respective shell element 3, 4. In both projections can threaded holes 14 be introduced, with only a front-side threaded bore 14 is shown. An example in FIG. 1 shown screw member 12 can be passed through the right insertion hole 13 and screwed into the threaded hole 14. Likewise, the rear shell element 4 can be screwed to the guide section 11 of the flange element 9, whereby the flange element 9 is held with exact position within the receiving tunnel 8.

However, the screw element 12 and the threaded bore 14 can also be dispensed with, provided that the half shells 3, 4 are already securely fastened to one another by the other fastening means.

For attaching the gear housing 2 and the door drive 1 itself, the gear housing 2 preferably mounting holes 3a, through from above in FIG. 1 passing through fastening screws not shown passed through and with a FIG. 1 arranged below the door drive but not shown mounting plate are screwed.

FIG. 2a shows a perspective view of the transmission housing 2, wherein the shell elements 3 and 4 are shown in a mutually abutted state. Furthermore, the groove guide 10 can be seen, which forms the receiving tunnel 8. The gearbox housing 2 is further designed so that further components can be installed or held on the shell elements 3 and 4. In a floating position shown in front of the transmission housing 2 are an incremental encoder 27 and a radio unit 29th

The incremental encoder 27 has a Rastanformung 35, which can be used in a recess 36 in the lower region of the shell element 3. Furthermore, a screw 41 is shown, with which the incremental encoder 27 can be attached to the shell element 3. The gear housing 2 or its half shell 4 preferably has insertion openings 47, engage in the protruding pins of the incremental housing 27 and its housing and set the incremental encoder 27 in the mounting position.

Further, a shaft passage 28 is provided in the shell member 3, through which a shaft portion of the transmission may extend to cooperate with the incremental encoder 27.

As shown, an electric wire 7 is laid on the transmission case 2 in a prescribed position. The dome-like Befestigungsanformungen 6a form a projection through which the defined guidance of the electrical line 7 is made possible on the gear housing 2.

Furthermore, the radio unit 29 can be mounted on the fixing element 37 on the shell element 3, wherein the signal line 42 can likewise be received by the dome-like fastening formations 6b for guidance. On the upper side, the gear housing 2 has a first planar surface region 24 of the shell element 4 and a second planar surface region 25 of the shell element 3, wherein the planar surface regions 24 and 25 together form the planar surface 26. About the flat surface 26, a ribbon cable holding out be led away, which passes through the door drive.

Furthermore, the incremental encoder 27 preferably has at least one receptacle 27a for one of the attachment screws indicated above. The respective fastening screw is preferably with its outer dimensions almost equal to or slightly larger than the receptacle 27 a. Thus, the respective fastening screw is held solely by the receptacle 27a. As a result, the incremental encoder can already be provided with the mounting screw (s) during manufacture, which facilitates assembly.

FIG. 2b shows a perspective view of the transmission housing 2 of the with respect to FIG. 2a other side of the gearbox housing 2. How to recognize, also the shell member 4 preferably in the mounting region of the motor flange 9 Befestigungsanformungen 6a, between which the line 7 is preferably laid by clamping.

As further in FIG. 2b to recognize the motor flange 9 preferably also has a ribbon cable guide 50. The ribbon cable guide 50 is formed by way of example by means of an obliquely pointing to the top right outside or surface of the motor flange 9 as a support surface 51 for the ribbon cable, not shown. At lateral end regions of the support surface 51 in FIG FIG. 2b are formed portions 52 which project from the support surface 51 in the direction in which the support surface 51 points. At free ends, the sections 52 preferably each have a projection 53 in turn. The projections 53 extend towards each other, so that they form a receiving space for the ribbon cable with the sections 52 and the support surface 51.

In the Figures 3 and 4 the first shell element 3 is shown individually in a perspective view. In FIG. 4 both the incremental encoder 27 and the radio unit 29 are shown in a position mounted on the shell element 3. For fixing the incremental encoder 27, the Rastanformung 35 is inserted into the recess 36. Furthermore, the screw connection 41 is shown, with which the incremental encoder 27 is arranged with exact position on the shell element 3. In FIG. 3 the shaft passage 28 is shown serving for passage of a shaft of the transmission. This shaft can interact with the incremental encoder 27, for example, to detect the rotation angle of the output shaft of the door drive 1 and to transmit the information about the rotation angle of the output shaft, for example via the signal line 42 to the control of the door drive. On the upper side, the shell element 3 has the plane surface region 25, which forms part of the plane surface 26. front side the shell element 3 has a receiving surface 16 for the arrangement of a spring force accumulator 15, not shown, wherein a collar portion 20 is shown, which serves for positioning a flange plate 17, also not shown. As shown, the shell member 3 has a geometric shape that enables the manufacture of the shell member 3 by means of a casting process. The casting method may involve a metal casting method, a metal die casting method, or a plastic injection molding method, such that the shell members 3 and 4 are made of a metallic material such as an aluminum material or a magnesium material or a plastic material.

FIG. 5 shows a further perspective view of the transmission housing 2, wherein the shell elements 3 and 4 are shown in a brought into abutment position. The receiving surface 16 for receiving the spring force accumulator 15 is composed of partial surfaces of the shell elements 3 and 4, wherein further the collar portions 19 and 20 join together to form an annular circumferential collar 18. In the receiving surface 16 Einsetzausnehmungen 23 are present, in which the insertion projections 22 of the spring force memory 15 can engage. The insertion recesses 23 thus advantageously provide a torsion-proof reception of the spring force accumulator 15 with respect to the transmission housing 2. As a result, a final fastening by means of the fastening screws 43 is simplified.

Between the spring force accumulator 15 and the receiving surface 16, a flange plate 17 is preferably further arranged, which has a centering opening 21. Through the centering 21, the collar 18 extends through, so that a stiffness-increasing effect is achieved because the shell elements 3 and 4 do not press further apart can. By screw elements 43 shown, a screwing of the flange 17 against the receiving surface 16 by the screw members 43 are screwed into threaded holes 44. In the shell member 3, a through hole 45 is shown, through which a push rod may extend, which may be part of a closing sequence control of a two-leaf door assembly. The flange plate 17 preferably has in the mounting position with the insertion openings 23 aligned, unspecified passage openings, which are preferably formed in cross section as the respective aligned insertion opening 23.

The spring tube thus opens with its the transmission housing 2 facing the end in the flange 17 or is attached to this stationary, for example by means of riveting.

FIG. 6 shows a perspective view of the door operator 1, which has a system carrier 30, in or on the other components such as a controller 46 are added. The controller 46 is connected to a ribbon cable 32 which is routed via a ribbon cable guide 31 over the motor 33 and the transmission housing 2 away. The gear housing 2 has the upper side of the flat surface 26, which is essentially covered by the ribbon cable 32, but the flat surface 26 also serves for the top-side guide of the ribbon cable 32.

FIG. 7 shows a modification of the gear housing 2. The housing 2 has a plurality of outer ribs 54 which stiffen the housing 2. This makes it possible to reduce the wall thickness of the transmission housing 2 and thus save material.

The invention is not limited in its execution to the above-mentioned preferred embodiment. Rather, a number of variants is conceivable, which makes use of the illustrated solution even with fundamentally different types of use. All of the claims, the description or the drawings resulting features and / or advantages, including design details, spatial arrangements and method steps may be essential to the invention both in itself and in a variety of combinations. In particular, the transmission housing 2 according to the invention is not limited to the illustrated detail geometry of the shell elements 3 and 4. The dividing plane extending between the shell elements 3 and 4 may also extend in a plane rotated by 90 °.

The collar 18 and the through hole 21 in the flange plate 17 may also take other shapes, for example, a rectangular shape.

LIST OF REFERENCE NUMBERS

1

door drive

2

gearbox

3

shell element

3a

fastening opening

4

shell element

5

Transmission interior space

6a

Befestigungsanformung

6b

Befestigungsanformung

7

electrical line

8th

acquisition tunnels

9

flange

10

groove guide

11

guide section

12

screw element

13

insertion

14

threaded hole

15

Stored energy

16

receiving surface

17

flange

18

collar

19

collar section

20

collar section

21

centering

22

insertion projection

23

insertion recess

24

Plan area

25

Plan area

26

plane surface

27

incremental

27a

screw receptacle

28

Shaft passage

29

radio unit

30

system support

31

Ribbon cable management

32

Ribbon cable

33

engine

34

breakthrough

35

Rasta shaping

36

recess

37

fixing dome

38

opening side

39

worm wheel

40

paragraph

41

screw

42

signal line

43

screw element

44

threaded hole

45

Through opening

46

control

47

insertion

50

Ribbon cable management

51

pan supports

52

protruding section

53

head Start

54

rib

Claims (15)

1. A door operator (1) with a drive unit, wherein the drive unit has a gear with a gear housing (2), which has at least one first shell element (3) and at least one second shell element (4), wherein, for forming an inner gear compartment (5), the shell elements (3, 4) are brought into mutual abutment and form a reception tunnel (8) in which a flange element (9) is received via a groove guide (10) provided in the reception tunnel (8), characterized in that

   • the flange element (9) has a guide section (11) via which the former is insertable into the reception tunnel (8), and

   • the guide section (11)

   - is configured for bearing and/or supporting a gear member of a motor (33), which is mountable to the gear housing (2) via the flange element (9), and

   - has at least one projection at a side facing one of the shell elements (3, 4), and

   • the at least one of the shell elements (3, 4) has an insert opening (13), corresponding to the at least one projection, such that, when placing the at least one of the shell elements (3, 4) onto the guide section (11), the at least one projection engages in the correspondingly configured insert opening (13).
2. The door operator (1) according to claim 1, characterized in that the shell elements (3, 4) are made from a metallic cast component, a metallic diecast component or from a plastic material injection moulded component.
3. The door operator (1) according to claim 1 or 2, characterized in that the shell elements (3, 4) have respective associated fastening mouldings (6a, 6b), by means of which the shell elements (3, 4) are preferably interconnectable by means of screw elements.
4. The door operator (1) according to claim 3, characterized in that at least one fastening moulding (6a) forms a projection, which allows for a defined guiding and/or affixing of at least one electrical line (7) at the gear housing (2).
5. The door operator (1) according to one of the aforementioned claims, characterized in that the at least one projection has a threaded bore (14), into which a screw element (12) is screwed from a side of the at least one of the shell elements (3, 4) facing away from the guide section (11), while passing through the insert opening (13).
6. A door operator (1) according to one of the aforementioned claims, characterized in that the door operator (1) comprises a spring energy accumulator (15) and in that the gear housing (2) has a reception surface (16) for receiving the spring energy accumulator (15), which surface, in the joined condition of the shell elements (3, 4), is formed by the elements in the same plane.
7. The door operator (1) according to claim 6, characterized in that a liner plate (17) is provided which can be disposed at the reception surface (16) in a flat abutment.
8. The door operator (1) according to claim 7, characterized in that a collar (18) projects from the reception surface (16), which collar is made by combining collar sections (19, 20) conformed to the shell elements (3, 4) to form a ring-shaped collar (18), and which collar serves to receive the liner plate (17) in a centring manner in that the collar (18) is configured to be inserted into a centring opening (21) provided in the liner plate (17).
9. The door operator (1) according to any of the claims 7 or 8, characterized in that the liner plate (17) is screwed to the shell elements (3, 4) and/or in that the spring energy accumulator (17) has at least one insert projection (22), which is inserted into an associated insert recess (23) in the shell elements (3, 4).
10. The door operator (1) according to one of the aforementioned claims, characterized in that the shell elements (3, 4) have plane surface areas (24, 25) respectively configured at the upper side, which, with the shell elements (3, 4) being brought into mutual abutment, extend in a common plane surface (26).
11. The door operator (1) according to one of the aforementioned claims, characterized in that an incremental encoder (27) is provided, wherein at least one of the shell elements (3, 4) is configured to receive the incremental encoder (27), which is preferably disposed at the outside of the shell element (3, 4).
12. The door operator (1) according to claim 11, characterized in that a shaft passage (28) is provided in the shell element (3) receiving the incremental encoder (27), through which passage a transmission shaft extends, in order to cooperate with the incremental encoder (27).
13. The door operator (1) according to one of the aforementioned claims, characterized in that a radio set (29) is provided, wherein at least one of the shell elements (3, 4) is configured to receive the radio set (29).
14. The door operator (1) according to one of the aforementioned claims, characterized in that the door operator (1) comprises at least one system carrier (30) with a flat cable guide (31), which is configured together with the plane surface (26) for guiding a flat cable (32).
15. The door operator (1) according to one of the aforementioned claims, characterized in that the gear housing (2) is provided with reinforcing ribs (54).

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