WO2012095093A1

WO2012095093A1 - Revolving door actuator mounted under lintel

Info

Publication number: WO2012095093A1
Application number: PCT/DE2011/075318
Authority: WO
Inventors: Sven Busch; Thomas Wildförster
Original assignee: Dorma Gmbh + Co. Kg
Priority date: 2011-01-14
Filing date: 2011-12-19
Publication date: 2012-07-19
Also published as: EP2663718A1; CN103328750B; CN103328750A; TW201231784A; WO2012095094A1; CN103299015A; WO2012095093A4; DE102011018733A1; EP2663713A1

Abstract

The invention relates to a revolving door actuator (1) mounted under a lintel and comprising a housing (2) which has a base plate (3) and is designed to be mounted on the bottom side of a lintel (71), further comprising an output disk (5) which is mounted on the base plate (3) so as to be rotatable about an output pin (4), a lever (8) which is directly and rigidly connected to the output disk (5) and can be connected to the revolving door (73) to mutually transmit forces therewith, and a spring unit (7) which is arranged in the housing (2), is used as an energy store for a closing or opening movement of the revolving door (73), and is connected to the output disk (4) to mutually transmit forces therewith.

Description

The present invention relates to a undercarriage rotary door operator for mounting on the underside of a camber.

The prior art knows door closers and door openers, which are to be mounted either on a door leaf or on the outside of a door frame. The known door operators are usually made of a cast housing, in which a closing spring and a drive mechanism is housed. An output shaft extends out of the casting housing. On this output shaft outside of the cast housing is a lifting! assembled. This lever transmits the force on the door leaf or door leaf on the door frame. If you were to assemble these previously known door operators below the lintel, then their size significantly affects the passage height of the door.

It is an object of the present invention to provide a Untersturzdrehflugftürbetätiger, which is very compact with ease of manufacture and assembly.

The object is achieved by the features of claim 1. The dependent claims have advantageous developments of the invention to the object.

Thus, the object is achieved by a Untersturzdrehblügeltürbetätiger, comprising a housing having a base plate, wherein the housing is designed for mounting on the underside of a fall, a rotatably mounted on the base plate about a driven axis output Disc, a directly and rigidly connected to the driven pulley lever, which occurs for mutual power transmission Drehdrehitür is connectable, and disposed in the housing spring unit as energy storage for a closing or opening movement of the swing door, wherein the spring unit is connected to the mutual power transmission to the driven pulley ,

The housing of the invention Untersturzdrehingtügbetätigers is attached to the underside of a fall. It is particularly important that the entire door operator is extremely compact, so that the passage height of the door is minimized as little as possible. Particularly advantageously, the Untersturzdrehfiügeltürbetätiger is mounted with the base plate on the lintel, so that the base plate is arranged above. The driven pulley can rotate on a fixed, connected to the base bolt, or the driven pulley is fixedly connected to a shaft which is mounted on the base plate, in particular in the housing. The lever is directly and rigidly connected to the driven pulley. In previously known solutions, an output shaft always extended out of the housing. On this output shaft and outside the housing, the lever is mounted in the previously known solutions. However, this design results in an unsustainable for the sub-mount mounting height in the direction of the output axis. Therefore, the lever according to the invention is directly and rigidly connected to the driven pulley. This means that the lever is either made in one piece with the driven pulley or mounted laterally on the driven pulley or is mounted directly on the driven pulley or mounted directly under the driven pulley. In the two-piece version of driven pulley and lever, the two components output disk and lever are adjacent to each other, in the ideal case, even touch the two components. Particularly preferably, the two components are directly connected without intervening elements. In a preferred embodiment it is provided that the complete lever is arranged between two planes perpendicular to the output axis, defined by the upper side of the housing and the lower side of the housing. The first level is defined here by the outside of the housing upper side of the housing of the underbody revolving door operator. The second level is defined by the outside of the case bottom. The lever is between these two levels. This ensures that the entire underbody swing door closer does not extend further in the direction of the output axis than from the top of the housing to the bottom of the housing. The housing upper side and the housing lower side are formed in particular by the base plate and a cover plate. There may still be a cover around the housing of a underbody revolving door operator. Such a cover has primarily aesthetic functions. However, in the context of this application as a housing, in particular as a base plate and cover plate, designated components have supporting function for various parts of the underbody revolving wing door operator.

Furthermore, it is preferably provided that the output disk nearest the end of the lever lies in a plane with the driven pulley or between the top and bottom of the driven pulley. This plane is defined in particular perpendicular to the output axis. Particularly preferred is the entire or complete lever in this plane or between the top and bottom of the driven pulley.

Furthermore, it is advantageously provided that the driven pulley is manufactured in one piece together with the lever. Particularly preferably, this component is manufactured as a stamped part. Preferably, the underslung rotary door operator comprises a slide rail for mounting on the swing door. The lever is slidable in the Guide rail guided. When the swing door is closed, the slide rail is flush with the housing or an optional cover of the housing. The lever is received in the slide rail and / or in the housing and / or in the cover. Particularly preferably, both the upper side and the lower side of the slide rail are flush with the corresponding upper and lower sides of the housing or the cover of the housing.

Particularly preferably, it is provided that in the closed state of the swing door the slide rests against the housing or the cover and the lever is invisibly received in the slide rail and / or in the housing and / or the cover.

In a further preferred embodiment, it is provided that the driven pulley on the lateral surface comprises a control cam, in particular cam contour. Under cam contour is to be understood that the radius of the driven pulley changes continuously at least in a certain area. The undercarriage rotary door operator further comprises a pressure roller for transmitting power between the spring unit and the driven pulley and / or for transmitting power between an optional dampening and the driven pulley. This pressure roller rolls on the control cam of the driven pulley.

In a further advantageous embodiment, it is provided that the underslung rotary door operator comprises at least one damper arranged in the housing. This damper serves to dampen the closing and / or opening movement of the swing door, wherein the damper is operatively connected to the output disk for mutual power transmission, and is formed as a stand-alone, independent from the housing module. In the known Türbetätigem the housing is always formed as a casting. As a rule, there is a zy in the casting Indian bore. In turn, a hydraulic damping piston is guided in this cylindrical bore. In the present invention, however, the lever extends laterally away from the driven pulley. As a result, no fluid or gas-tight housing can be used. Rather, the damper must be designed here as an independent, inherently dense module. It is particularly preferably provided that no part of the damper is formed integrally with the housing or a housing component, and / or that no part of the damper with the housing or a housing component is urgeformt, and / or that no part of the damper in the housing or a Casing ingredient was molded. Furthermore, it is particularly preferably provided that the damper is independent of the housing fluid and / or gas-tight. It is further preferred that the damper comprises a damper cylinder filled with gas or fluid and a damping piston guided in the damper cylinder. Furthermore, it is preferably provided that the spring unit always acts against the damper, so that the complete opening and / or closing path of the swing door is damped. Further preferably, the damper or dampen the full opening movement and / or the complete closing movement of the swing door. Particularly preferably, the damper or dampers are designed so that they dampen to train and / or pressure.

In a preferred embodiment, the undercarriage rotary door operator comprises a transmission unit for mutual power transmission between the driven pulley and the damper. In the following, for reasons of clarity, there is always talk of a damper. Likewise, it is preferably provided that a plurality of dampers are arranged both in parallel and in series. It is particularly preferably provided that the transmission unit is designed for the conversion between the rotational movement of the driven pulley and a linear damping movement of the damper. Here we recommend a damper, consisting of cylinder and guided damping piston. In a further preferred embodiment, a fixed end of the damper is rigid or rotatably mounted in the housing, in particular on the base plate. The other, linearly movable end is connected to the transmission unit. In a particularly preferred embodiment, the movable end of the damper is the piston rod, which is connected to the damping piston. The cylinder of the damper is then fixed or rotatably mounted in the housing. In a preferred embodiment, it is provided that the transmission unit is designed as a carriage (also referred to as a flap carriage) with the pressure roller and a counter-roller, wherein the pressure roller and the counter-roller on both sides of the driven pulley on the control cam, in particular on the cam contour, roll off. The pressure roller and the counter-roller are spaced apart from each other in the Schütten stored. The axes of these two rollers are parallel to the output axis. Between the Gegenrolie and the pressure roller is the driven pulley. The carriage is preferably mounted linearly in the housing, in particular on the base plate, the damper used damps here preferably both in tension and compression direction. The linear guide is designed either as a sliding guide or as a roller guide with rolling or sliding bearings. As a further alternative here is preferably a Wäizkörperiagerung used. The advantage of the carriage is that in both directions (opening and closing movement of the door) force and movement can be transmitted. This makes it possible in a simple way to damp with a damper in both directions of movement of the door operator. The transmission unit is relatively low friction, so that a high efficiency of TÃ¼rrbetättgers can be achieved.

Advantageously, the pressure roller and the counter-roller between two parallel, plate-shaped elements of the carriage are stored. The two plate-shaped elements of the carriage are preferably rigidly connected to each other. This design of the carriage ensures that the force between the driven pulley and damper or spring unit is symmetrical. Thus, tilting of the transmission unit is largely avoided.

Furthermore, it is preferred that the carriage is designed for direct power transmission to the spring unit and to the damper. As a result, the damper stroke and the spring travel are identical.

In a further advantageous embodiment it is provided that the damper is arranged in the interior of a helical compression spring of the spring unit. By this arrangement, the door operator according to the invention is very compact. In particular, a plurality of springs and / or a plurality of dampers may be provided. Preferably, a damper is then arranged in each case in a spiral spring.

Furthermore, it is preferably provided that a fixed end of the spring unit is mounted on the housing, in particular on the base plate. This fixed end of the spring unit is mounted here either rigid or rotatable. The other, linearly movable end of the spring unit is, as already described, connected to the chute. Between the spring or, the springs and the storage of the fixed end is preferably a Federverstelleinheit for dividing the Schiießkraft. The spring unit particularly preferably comprises several, in particular two or three, compression springs arranged in parallel. More preferably around holds the spring unit at the fixed end and / or at the linearly movable end each a compression spring receptacle. The compression spring or the plurality of compression springs are inserted into pockets of the compression spring receptacle or are plugged onto bolts of the compression spring receptacle. Particularly preferably, all compression springs are connected to a common Druckfederauf at the linearly movable end and / or at the fixed end. Thus, an equal spring travel of all pressure springs is always ensured.

Particularly preferably, the housing of the underbody revolving door operator comprises a cover plate opposite the base plate. In particular, the driven pulley, the spring unit and the damper together with the transfer unit are located between the base plate and the cover plate. The lever is preferably located between the two planes, defined by base plate and cover plate. Particularly preferred is / are one or more spacers in the form of a Kunststoffteiis and / or a metal sleeve between the base plate and cover plate arranged.

Particularly preferably, the housing, in particular the connection of base plate and cover plate, not formed fluid-tight and not gas-tight. The fact that the damper is used as an independent and self-contained module, it requires no dense execution of the housing. As a result, the underbody revolving door operator according to the invention can be produced very simply and inexpensively. Particularly preferred is the Untersturzdrehfiügeltürbetätiger, in particular the spring unit, the driven pulley and the lever, for moving the swing door over at least 45 °, in particular at least 90 °, in particular at least 120 ° formed. It is particularly preferably provided that a bearing parts of the driven pulley and / or a damper and / or the spring unit in the housing at the same time as a mounting point for the housing is formed on the lintel. That is, for example, a bolting of the underbody revolving door operator with the fall of a door frame passes through the fixed or rotatable mounting of the fixed end of the damper.

Particularly preferably it is provided that the base plate and / or cover plate and / or the entire housing, each with a uniform wall thickness (+/- 2mm), in particular gieich or less than 5 mm, in particular equal to or less than 3 mm, is executed.

Particularly preferably it is provided that the driven pulley is mounted on a bolt by means of a sliding or rolling bearing, wherein the bolt is mounted perpendicular to the base plate, in particular also perpendicular to the cover plate. As an alternative storage is provided that the driven pulley comprises a shaft, wherein the shaft is mounted in the base plate and / or cover plate by means of sliding or rolling bearings.

Further preferably, it is provided that the driven pulley comprises a while, wherein the shaft is mounted on or in the base plate by means of Gieit- or roller bearings and on the inside of the cover plate, a contact surface is formed.

In the following, several embodiments of the invention will be explained with reference to the accompanying drawings. Showing:

1a shows a Untersturzdrehflügeltürbetätiger invention according to a first embodiment, Fig. 1b shows a detail of the Untersturzdrehflugitürbetätigers after the first Ausführungsbetspiel, a transmission unit of the invention Untersturzdrehflügeltürbetätigers invention according to a modification of the first embodiment, a transmission unit of the invention Untersturzdrehflügeltürbetätigers according to a second embodiment, a detail of a Untersturzdrehflügeltürbetätigers invention according to a third embodiment, various bearings of a driven pulley Untersturzdrehflügeltürbetätigers according to all embodiments, a first view of the mounted Untersturzdrehflügeltürbetätigers invention 7 shows a second view of the assembled underbody revolving door operator according to all embodiments, and FIG

8 is a third view of the assembled underbody revolving door operator of the invention according to all embodiments.

1a shows the underbody revolving door operator according to the invention (hereinafter door operator) 1 according to the first embodiment. The door operator 1 comprises a housing 2, consisting of a base plate 3 and a cover plate 65 opposite the base plate 3 (see FIG. 7). The baffles are at an angle of 90 ° to the base of the base plate 3-. Furthermore, the door operator 1 comprises a driven pulley 5. The driven pulley 5 is rotatably mounted on the base plate 3 about an output shaft 4. The driven pulley comprises two attached additional pulleys 82. The main component of the driven pulley 5 is here made in one piece, as a stamped part, with a lever 6. In this main component, the additional discs 82 are rotatably applied.

Furthermore, the door operator 1 comprises a spring unit 7, a transmission unit 8 and a damper 9. The spring unit 7 and the transmission unit 8 are also mounted on the base plate 3 here. Alternatively, it is also possible to store these elements together on the cover plate 65, or on the base plate 3 and the cover plate 65. For an aesthetically pleasing conclusion of the housing 2 selbiges is provided with a cover 10. The spring unit 7 comprises two juxtaposed and parallel compression springs 12. Further, the spring unit 7 comprises a linearly movable end 13, formed as a first compression spring receptacle, and a fixed end 14, formed as a second compression spring receptacle, the second Druckfedernaufmeme 14 comprises a Federverstelleinheit 15 for dividing the closing force of the spring unit 7. The first compression spring receptacle 13 is linearly movable. The second compression spring receptacle 14 is mounted with a rigid or drehbewegiichen bearing 17 of the spring unit 7 relative to the base plate 3. Within the Federverstelleinheit 15 is a linear guide. The damper 9 comprises a damper cylinder 18 and a damper piston 19 guided in the damper cylinder 18. The damper piston 19 is connected to a damper piston rod 20. The damper cylinder 18 is mounted by means of a rigid or rotatable bearing 21 of the damper 9 relative to the base plate 3. At the free end of the damper piston rod 20 is the connection 22 to the transmission unit 8. The connection 22 between damper 9 and transmission unit 8 can be rotatably, in particular with a rotation axis parallel to the output axis 4, or rigid.

The transfer unit 8 comprises a carriage 47. In this carriage

47, a pressure roller 11 and a counter roller 48 are each mounted rotatably. The counter-roller 48 here comprises two spaced, coaxial single rollers. The axes of pressure roller 11 and counter roller 48 are parallel to the output axis 4. Between the pressure roller 11 and the counter roller 48 is the driven pulley 5. The pressure roller 11 and the Gegenrolie

48 roll or roll respectively on the driven pulley 5. In detail, the pressure roller 11 rolls on the cam contour 32 of the driven pulley 5. The two Einzelrolien the Gegenrolfe 48 each roll on one of the Zuatzscheiben 82 of the driven pulley 5. Here are the contours of the additional discs 82 as Control cams, in particular cam contours formed. The two individual rollers are spaced so far apart that the lever between the two Einzelrolien can dip. This allows the door to be opened more than 120 °.

The carriage 47 is linearly movable relative to the housing 2, in particular the base plate 3, by means of a linear guide 52.

Fig. 1 b shows the lifting! 6 of Fig. 1a in detail. You can see the driven pulley 5 with one of the two additional discs 82nd In the following Ausführungsbeispieten according to FIGS. 2 and 3, a simplified variant of the driven pulley 5 is shown. Here roll the pressure roller 11 and the counter-roller 48, formed as a single role, together on the cam contour 32. Alierdings is shown in Figs. 1a and 1b variant with double counter-roller 48 and two additional discs 82 is advantageous.

Fig. 2 shows the transmission unit 8 according to the first embodiment in detail. The slide 47 with its schematically illustrated linear guide 52, the driven pulley 5, the damper 9 and the spring unit 7, The slide 47 comprises a first plate-shaped element 50 and a first plate-shaped element 50 opposite second plate-shaped element 51. Between these two plate-shaped elements 50, 51, the pressure roller 11 and the counter-roller 48 and the counter-ropes 48 are arranged according to Fig. 1a. The two plate-shaped elements 50, 51 are rigidly connected to one another via the base 53 which is transverse to the plate-shaped elements 50, 51. The carriage 47, in particular the first and second plate-shaped element 50, 51, comprises a total of four axle carrier 54, These four axle carrier 54 extend perpendicular to the base 53. Between each two axle carriers 54, the pressure roller 11 and the counter-roller 48 is mounted. For this purpose, the pressure roller 11 comprises a pressure roller axis 30. The counter roller 48 includes a counter-roller axis 49. The output disk 5 has on its lateral surface a control cam, in particular cam contour 32, designed here as a heart-shaped cam contour on. The pressure roller 11 and the counterroils 48 roll on this cam contour 32. In the following, a further embodiment of the transmission unit 8 is shown with reference to FIG. 3. The same or functional identical components with the same reference numerals as in the first embodiment. The second exemplary embodiment corresponds in its function and in its structure to the first exemplary embodiment with the exception of the construction of the transmission unit 8. Some components are shown here only schematically or are hidden for the sake of clarity. Ultimately, however, results in the entire construction of the door operator 1 in all embodiments in combination with the illustration of FIG. 1a. 3 shows the transmission unit 8 according to the second embodiment. Here, the transfer unit 8 in turn comprises the carriage 47, which is guided linearly along the linear guide 52. The carriage 47 is designed here box-shaped, in the two plate-shaped elements 50, 51 a recess for the output shaft 4 is provided. On its underside, that is, the base 53 opposite side of the box-shaped carriage 47 is open. Here engages the lever 6, not shown, which is in particular made in one piece with the driven pulley 5, in the carriage 47 a. The connection 22 between the carriage 47 and the damper 9, in particular the piston rod 20 and / or the spring unit 7, is arranged in this exemplary embodiment at the level of the output shaft 4, the pressure roller axis 30 and the counter roller axle 49. Here, an imaginary extension of the piston rod 20 of the damper 9 intersects the output axis 4, in particular also the pressure roller axis 30 and / or the counter roller axis 49.

Fig. 4 shows a detail of a third embodiment of the door actuator according to the invention 1. The same or functionally identical components are provided in all embodiments with the same reference numerals. 4 shows in detail the lever 6 and the driven pulley 5. Here, the lever 6 and the driven pulley 5 are in one piece, in particular as a stamped part, manufactured. In the embodiments in FIGS. 2 and 3, the driven pulley 5 is always shown as its own component without the lever 6. However, it is also preferably provided here that the driven pulley 5 and the lever 6 are made in one piece.

5 a-c show various possibilities for mounting the driven pulley 5 in the housing 2. These bearings are preferably to be applied to all embodiments. Shown in each case is the driven pulley 5 between the base plate 3 and the cover plate 65.

According to Fig. 5a is coaxial with the output axis 4, a bolt 74 is formed. This pin 74 is fixedly connected to the housing 2. The driven pulley 5 is rotatably mounted on the bolt 74. For this purpose, Fig. 5b shows a sliding bearing 66. The sliding bearing 66 is designed here as both Axialals and radial bearings. Alternatively, FIG. 5 c shows a first rolling bearing 67 for the rotatably supporting the driven pulley 5 on the fixed bolt 74.

The installation of the underbody rotary door operator 1 according to the invention on the underside of a door lintel 71 according to all embodiments will be shown with reference to FIGS. 6 to 8. Fig. 6 shows the lintel 71 and the swing door 73, The üntersturz rotary door operator 1 here further comprises a slide rail 72. The slide rail 72 is connected to the door 73. In this slide 72, the lever 6 is guided. The housing 2 is covered by a cover 10.

Fig. 7 shows the arrangement of Fig. 6 in the open state. Here it can be seen how the housing 2 composed of base plate 3, which is attached directly to the lintel 71, and the opposite cover plate 65. The top of the base plate 3 forms the upper side of the housing 76, the underside of the cover plate 65 forms the housing bottom 77. A Height H, measured along the output axis 4, the cover 10 corresponds to the height H of the slide rail 72. As a result, the slide rail 72 and the cover 10 are in the closed state of the door 73 flush to each other, as shown in FIG. In addition, in this closed state, the lever 6 is completely and invisibly received in the slide rail 72 and / or in the housing 2 or the cover 10. Fig. 8 shows this again the door in the half-opened state. It can be seen how the lever 6 is guided in the slide rail 72.

LIST OF REFERENCE NUMBERS

1 underbody turntable door operator

2 housings

3 base plate

4 output shaft

5 driven pulley

6 lift!

7 spring unit

8 transmission unit

9 dampers

10 cover

11 pressure roller

12 compression spring

13 linearly movable end / first compression spring receptacle

14 fixed end / second compression spring receptacle

15 spring adjustment unit

17 rigid / rotatable bearing of the spring unit

18 damper cylinders

19 damping piston

20 damper piston rod

21 rigid / rotatable bearing of the damper

22 Connection to the transmission unit

23 bends

30 pressure roll axis

32 cam contour

47 sleds

48 counter role

49 counter-roll axis

50 first plate-shaped element 51 second plate-shaped element

52 Linear guide of the carriage

53 base

54 axle carrier

65 cover plate

66 plain bearings

67 first rolling bearing

71 fall

72 glacier rail

73 swing door

74 bolts

76 housing top

77 Housing underside

82 additional discs / counterroll contour

Claims

claims

An underfloor swing door operator (1) comprising

A housing (2) having a base plate (3), the housing (2) being designed to be mounted on the underside of a lintel (71),

A driven pulley (5) rotatably mounted on the base plate (3) about an output shaft (4),

• a directly and rigidly connected to the driven pulley (5) lever (6), which is connectable for mutual transfer of force with the swing door (73), and

• A in the housing (2) arranged spring unit (7) as energy storage for a closing or opening movement of the swing door (73), wherein the spring unit (7) for mutual power transmission to the driven pulley (4) is connected.

2. Untersturzdrehfiügeltürbetätiger according to claim 1, characterized in that the complete lever (6) between two, perpendicular to the output axis (4) stationary planes, defined by the upper housing side (76) and lower housing side (77) is arranged,

3. undercarriage door operator according to one of claims 1 or 2, characterized in that the driven pulley (5) nearest the end of the lever (6), in particular the entire lever (6), in a plane perpendicular to the output shaft (4) lying plane with the driven pulley (5) lies. , A lintel rotary door operator according to one of the preceding claims, characterized in that the driven pulley (5) is made in one piece with the lever (6), in particular as a stamped part. An undercarriage door operator according to any one of the preceding claims, further comprising a slide rail (72) for mounting on the swing door (73),

• wherein the lever (6) is slidably guided in the slide rail (72), and

^• wherein in the closed state of the Drehfiügeltür (73) closes and the runner (72) flush with the housing (2) or a cover (10) of the housing (2) of the lever (6) in the slide rail (72) and / or in the Housing (2) and / or in the cover (10) is received.

Undercarriage rotary door operator according to claim 5, characterized in that in the closed state of the swing door (73), the slide rail (72) on the housing (2) or the cover (10) and the lever (6) invisible in the slide rail (72) and / or in the housing (2) and / or in the cover (10) is received.

Undercarriage door operator according to one of the preceding claims, further comprising a pressure roller (11) rolling on a control cam, in particular cam contour (32), of the driven pulley (5) for transmitting power between the spring unit (7) and the driven pulley, and / or for transmitting power between a damper (9) and the driven pulley (5),

The undercarriage door operator according to one of the preceding claims, further comprising at least one damper (9) arranged in the housing (2) for damping the closing and / or opening movement of the revolving door (73), the damper (9) being connected to the driven pulley (5) for mutual transmission of power ), and as a stand-alone, from the housing (2) independent module is formed. An undercarriage door operator according to claim 8, further comprising a transmission unit (8) for mutual power transmission between the driven pulley (5) and the damper (9) and / or for mutual power transmission between the driven pulley (5) and the spring unit (7).

An understeer rotary door operator according to claim 9, characterized in that the transmission unit (8) is designed for conversion between the rotational movement of the driven pulley (5) and a linear damping movement of the damper (9).

Untersturzdrehfiügeltürbetätiger according to one of claims 8 to 10, characterized in that a fixed end of the damper (9) is mounted rigidly or rotatably in the housing (2), in particular on the base plate (3).

Underrun rotary door operator according to one of claims 9 to 11, characterized in that the transfer unit (8) is a carriage (47) comprising the pressure roller (11) and a counter-roller (48), the pressure roller (11) and the counter roller (48) being formed. on both sides of the driven pulley (5) on the control cam, in particular cam contour (32), roll off.

A derailleur rotary door operator according to claim 12, characterized in that the pressure roller (11) and the counter-roller (48) are mounted between two parallel plate-like elements (50, 51) of the carriage (47).

Undercarriage rotary door operator according to one of the claims 12 or 13, characterized in that the carriage (47) is adapted for power transmission on the spring unit (7) and on the damper (9) is formed.

An underrun turntable door operator according to any one of claims 8 to 14, characterized in that the damper (9) is arranged inside a helical compression spring (12) of the spring unit (7).