Door actuator linkage

Abstract

To provide a door actuator link mechanism that allows operationally safe and low maintenance operation of a door.SOLUTION: A door actuator link mechanism, including a lever 2 that extends in the lengthwise axis 11; has an offset 6; and integrated with a link mechanism head, in which the link mechanism head is formed to be fixedly mounted on an output shaft of a door actuator for rotation; the offset 6 creates a free space 9 for cabling; the free space 9 is defined by the link mechanism head and by an offset surface of the lever 2; the lever 2 protrudes to the maximum of a virtual boundary plane 10; the virtual boundary plane is defined perpendicular to the longitudinal axis 11; and the offset plane is partially retracted from the boundary plane 10 to expand the free space 9.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a door actuator linkage for mounting on an output shaft of a door actuator. The present invention also discloses a door actuator assembly and a revolving door assembly each comprising the door actuator linkage.

[0002] Door closers and door drives, collectively designated as door actuators, are known from the prior art. Door closers have a force storage mechanism, e.g., a spring. This force storage mechanism is charged when a person manually opens the door. The force storage mechanism is released when the door is closed. There are also door closers in the prior art that have a servo drive, which helps charge the force storage mechanism when the door is opened. In contrast, door drives have an electric or hydraulic drive, which applies all of the force to open and / or close the door. In addition to the drive, a force storage mechanism can be used in the door drive.

[0003] A door actuator typically has an output shaft. The output shaft is connected to a door actuator linkage in a rotationally fixed manner. If the door actuator is mounted on the door leaf, the door actuator linkage transmits force to the frame or wall. In contrast, if the door actuator is fastened to the frame or wall, the linkage transmits force to the door leaf. In different application cases, cabling through or along the door actuator linkage is desirable. One or more cables for data transfer and power supply can be laid along the cabling. For example, in this way, power can be supplied to and / or actuated by a drive unit in the door actuator. However, even if the door actuator is mounted on the wall or frame, power supply, for example, power supply of a door lock, can be performed via the cabling, and similarly, data can be exchanged with other elements on the door actuator, door lock, or door leaf via the cabling.

[0004] The object of the present invention is to provide a door actuator linkage that has a simple design and allows for operationally safe and low-maintenance operation of doors. In particular, the door actuator linkage should allow for safe cable routing.

[0005] This object is achieved by the features of the independent claims. The dependent claims have as their subject matter advantageous configurations of the invention.

[0006] The present invention discloses a door actuator linkage having a lever and a linkage head. The lever extends along a longitudinal axis. In particular, the longitudinal axis is centered on the lever. One end of the lever is connected to, for example, a slide piece, which is guided in a slide rail. Alternatively, this end of the lever can be rotatably connected to another lever, so that the two levers together form a scissors-type linkage. The other end of the lever is integrated with the linkage head of the door actuator linkage, but with an offset.

[0007] The linkage head is configured for rotationally fixed mounting on the output shaft of the door actuator. In particular, the linkage head is inserted onto the output shaft of the door actuator and, as a result, is connected to the output shaft in a rotationally fixed manner. For purposes of the present description, the shaft axis of the output shaft of the door actuator is defined. The position and alignment of the shaft axis also become apparent from the design of the linkage head. The door actuator can essentially be a door closer, a servo door closer, or a door drive.

[0008] The offset between the lever and the linkage head results in a shoulder. When the door actuator is mounted on the door leaf, the lever extends beyond the door leaf up to the output shaft of the door actuator. The door actuator or output shaft is usually positioned somewhat lower than the top edge of the door leaf. As a result, the shoulder resulting from the offset engages the rear surface of the door leaf.

[0009] The offset, along with the shoulder, also provides a free space formed in accordance with the invention for cable routing. In particular, the door actuator linkage comprises at least one cable, which extends through the free space.

[0010] The free space is defined by the linkage head and by an offset surface of the lever, which is in particular the surface facing the shaft axis, and in particular results from the lever terminating in an offset region or bending downwards, and in particular is integrated into the upper side of the linkage head.

[0011] When the door actuator is mounted on the door leaf, the output shaft to be used protrudes upward from the door actuator. The linkage head is therefore positioned above the door actuator. The free space defined here is therefore defined below by the linkage head. The offset surfaces form the lateral boundaries. The free space could theoretically remain open above, i.e., on the opposite side of the linkage head. However, it is preferably provided that a corresponding free space cladding is integrated above the free space.

[0012] The offset surface bounds the free space on one side only, the other side, in particular the semicircular side, can be defined by a corresponding radial cladding.

[0013] The elements described herein, in particular the "lever" and "linkage head," only refer to the corresponding support components of the door actuator linkage. The lever and / or linkage head can be completely or partially surrounded by a cladding. In particular, the lever and linkage head are made of metal. The lever and linkage head can be made as a single piece or as two components connected to each other. The peripheral cladding is made, in particular, of plastic, but can also be made of sheet metal. The terms radial cladding, free-space cladding, and lever cladding are used to describe the location of the cladding in the context of the present invention. These claddings can be connected to each other as a single piece or can represent separate components. The lever cladding is, in particular, located on one or more sides of the lever. As will be described in detail, a cable channel can be formed within the lever and / or between the lever and its lever cladding and / or within the lever cladding. At least one cable guided through the free space is further guided in this cable channel along the lever and thus parallel to the longitudinal axis. The cable or a corresponding further cable is preferably guided parallel to the shaft axis in the direction from free space to the door actuator and is preferably connected to an electronic and / or electrical system within the door actuator.

[0014] When using a door actuator linkage on a door actuator, the linkage head, together with the lever, rotates with the output shaft relative to the remaining components of the door actuator, potentially achieving a rotational movement of up to 180 degrees, depending on the application. This rotational movement causes at least one cable to move or bend in free space. To allow for the largest possible cable bending radius in the free space, the free space is preferably designed to be as large as possible. This particularly relates to the expansion of the free space in a plane perpendicular to the shaft axis. However, at the same time, the size of the free space is limited by the offset. That is, the offset must be positioned as close as possible to the linkage head, so that the shoulder resulting from the offset is also positioned as close as possible to the linkage head or shaft axis, and thus can engage the rear surface of the door leaf. Furthermore, the door actuator linkage must be designed to be sufficiently stable during the transition from the lever to the linkage head to transmit the corresponding force.

[0015] For the further configuration of the offset, an imaginary boundary surface is preferably defined. The imaginary boundary surface is perpendicular to the longitudinal axis of the lever. The boundary surface is particularly vertical and therefore parallel to the shaft axis. The lever projects at most to this imaginary boundary surface in the direction of the linkage head or in the direction of the shaft axis. The end of the lever facing the linkage head therefore defines the position of this imaginary boundary surface. In particular, the offset surface of the lever, i.e. the surface that laterally defines the free space, projects at most to this imaginary boundary surface. In the case of the largest possible configuration of the lever, and therefore the configuration that is optimal in terms of stability, the lever will project at most to this boundary surface over its entire offset surface. In the context of the present invention, it is preferably provided that the offset surface is partially recessed from the boundary surface in order to increase the free space in this way. The lever, in particular the offset surface, therefore projects at least at its tip at most to the boundary surface. However, the entire offset surface does not overlap with the imaginary boundary surface, but rather only overlaps with at least one point of the offset surface.

[0016] In other words, the offset surface is preferably defined such that it is not perpendicular to the longitudinal axis of the lever over its entire area.

[0017] Furthermore, the upper side of the lever is preferably higher than the upper side of the linkage head, this height difference being defined to determine the height of the free space. The offset surface is preferably integrated on one side into the upper side of the linkage head and on the other side into the upper side of the lever. It is further preferably provided that the lower side of the linkage head, i.e. the side facing the door actuator, is lower than the lower side of the lever.

[0018] Preferably, the offset surface is provided with an inclined cross section. The inclined cross section can extend over the entire offset surface so that the entire offset surface is formed obliquely. Alternatively, the inclined cross section can extend over only a portion of the offset surface, so that only a portion of the offset surface is formed obliquely. This should be understood as an inclined design with a corresponding angle deviating from 90 degrees with respect to the longitudinal axis of the lever. The inclined cross section is preferably oblique with respect to an imaginary boundary plane so that the free space is expanded over its entire height (defined parallel to the shaft axis) by the inclined configuration. An inclined transition from the upper side of the lever to the upper side of the linkage head, which is inclined with respect to the shaft axis, is not particularly considered as an "inclined cross section."

[0019] The offset surface preferably introduces an angle α with respect to the longitudinal axis in the oblique cross section. The upper limit of the angle α is preferably 89 degrees, more preferably 80 degrees, and particularly preferably 75 degrees. Additionally or alternatively, the lower limit of the angle α is preferably 30 degrees, more preferably 40 degrees, and particularly preferably 45 degrees. Through these angle ranges, a good balance is struck between a stable connection of the lever and the linkage head and the configuration of as large a free space as possible.

[0020] Preferably, the inclined cross section of the offset surface is defined to extend from an acute end to an obtuse end. The acute end of the inclined cross section is preferably closer to the boundary surface than the obtuse end. If the inclined cross section extends over the entire offset surface, it is preferably provided that the acute end contacts the boundary surface.

[0021] As already explained, a cable channel is preferably located in and / or on the lever, which preferably opens into free space at the obtuse end of the oblique cross section.

[0022] The cable channel preferably extends horizontally laterally to the longitudinal axis within or adjacent to the lever. By "horizontally laterally" it is meant that the cable channel preferably does not extend above or below the lever, but rather adjacent to it. As a result, a lever design that is as structurally low as possible is ensured.

[0023] In addition to or instead of the inclined cross section, the offset surface can have a convex abutment cross section. The cable can abut on this cross section or the cable can bend around this cross section. In particular, the abutment cross section comes into contact with the cable only in cases where the rotational movement in one of the two rotational directions is relatively large. The abutment cross section can be formed by an additional element, which is connected to the linkage head and / or lever and, as a result, forms the cross section of the offset surface. However, the abutment cross section can also be formed by an integral component of the lever.

[0024] The cable routing is performed from free space to the door actuator. In particular, the cable is guided laterally through the linkage head. For this purpose, a pivot member is preferably used. This pivot member is configured to connect to the door actuator in a rotationally fixed manner. As a result, the door actuator linkage rotates relative to this pivot member together with the output shaft. The pivot member is preferably positioned radially outside the linkage head. The cable routing is performed from free space to the door actuator via the pivot member, preferably deflected by 90 degrees. As a result, the cable can be guided through the pivot member. Alternatively, the cable can be connected to the pivot member, in which case a separate cable or separate line is connected from the pivot member to the door actuator.

[0025] Preferably, it is provided that the linkage head, and therefore also the lever and the output shaft, can rotate by at least 135 degrees relative to the pivot member, preferably by at least 180 degrees. The free space must be made correspondingly large in order to allow a sufficiently large bending radius of the cable within the free space in the case of this large angle of rotation.

[0026] As explained, the pivot member is preferably located radially outward of the linkage head, and the radial cladding is preferably located radially outward of the pivot member, such that the pivot member is located between the radial cladding and the linkage head.

[0027] A geometric constraint element is preferably located on the side of the linkage head facing away from the free space, which allows a rotationally fixed connection to the output shaft, in particular an inner polygonal edge that is inserted onto an outer polygonal edge of the output shaft.

[0028] The form-constraining element is preferably non-destructively detachable from the remaining components of the linkage head and therefore interchangeable and / or rotatable. Preferably, it is provided that the form-constraining element is fastenable onto the linkage head in different rotational positions relative to the linkage head.

[0029] The lever and the linkage head can be manufactured as one piece, for example by a bent piece of metal, in which case the offset is formed in particular by a bent edge that is oblique to the longitudinal axis.

[0030] Alternatively, the lever and linkage head are two components welded together. The lever is particularly preferably overlapped with the linkage head, one end of the lever forming an offset surface and one end of the linkage head forming a shoulder.

[0031] In particular, it is provided that the lever and the linkage head are face-welded in overlap, and a material deposit is positioned in particular between the lever and the linkage head, which is form-fittingly connected to the two overlapping surfaces of the lever and the linkage head via resistance welding.

[0032] The invention also includes a door actuator assembly. Advantageous configurations presented as part of the door actuator linkage and the dependent claims described for the door actuator linkage are advantageously correspondingly applicable to the door actuator assembly.

[0033] The door actuator assembly includes a door actuator having an output shaft and a door actuator linkage, the linkage head being configured for rotationally fixed mounting on the output shaft. The linkage head is preferably mounted on the output shaft in a rotationally fixed manner.

[0034] The invention also includes a revolving door assembly. The advantageous configurations presented as part of the door actuator linkage and the dependent claims described for the door actuator linkage are advantageously correspondingly applicable to the revolving door assembly.

[0035] The revolving door assembly comprises the door actuator assembly described above and a door leaf, the door actuator being mounted on the door leaf, the door actuator linkage being configured for mounting on a frame or wall, and a shoulder formed by the offset engaging the rear surface of the door leaf. The lever therefore projects from the frame or wall beyond the upper edge of the door leaf and thus extends somewhat downward through the offset to connect to the output shaft of the door actuator, thereby providing a shoulder from the offset that engages the rear surface of the door leaf on the side of the door actuator.

[0036] The invention will now be further explained on the basis of exemplary embodiments. [Brief explanation of the drawings]

[0037] [Figure 1] 1 is a diagram of a revolving door assembly according to the present invention having a door actuator assembly according to the present invention and a door actuator linkage according to the present invention, according to an exemplary embodiment; [Figure 2] FIG. 2 is a side view of the depiction from FIG. 1. [Figure 3] 1A-1C are detail views of a door actuator linkage according to an exemplary embodiment in different rotational positions. [Figure 4] 1A-1C are detail views of a door actuator linkage according to an exemplary embodiment in different rotational positions. [Figure 5] FIG. 10 is another detailed view of a door actuator linkage according to an exemplary embodiment. [Figure 6] 1 is a diagram of a linkage head of a door actuator linkage according to an exemplary embodiment; FIG. [Figure 7] 1 is a detail view of a linkage head of a door actuator linkage according to an exemplary embodiment; FIG. DETAILED DESCRIPTION OF THE INVENTION

[0038] Based on all the drawings, in the following a revolving door assembly 200 having a door actuator assembly 100 together with a door actuator linkage 1 will be described in detail.

[0039] 1 shows a revolving door assembly 200 having a frame 201 and a door leaf 202 pivotally received within the frame 201. The revolving door assembly 200 also includes a door actuator assembly 100.

[0040] The door actuator assembly 100 comprises a door actuator 101, here formed as a door drive, having an output shaft 102. The output shaft 102 rotates about a shaft axis 103. The door actuator 101 is fastened onto a door leaf 202. The door actuator assembly 100 also comprises a door actuator linkage 1. In the example shown, the door actuator linkage 1 comprises a lever 2, which is pivotally connected to a sliding piece 5. The sliding piece 5 is guided in a sliding rail 4 so as to be translatable. The sliding rail 4 is fastened onto a frame 201.

[0041] The detailed structure of the door actuator link mechanism 1 becomes clear particularly from FIGS.

[0042] The lever 2 is integrated into the linkage head 3 with an offset 6. This offset 6 results in a free space 9. The free space 9 is located above the output shaft 102, so that the shaft axis 103 extends through this free space 9.

[0043] The lower side of the free space 9 is defined by the upper side of the linkage head 3. An offset surface 7 forms the lateral boundary of the free space 9. This offset surface 7 results from the offset 6. In the exemplary embodiment shown, the offset surface 7 is formed by the end face side of the lever 2 facing away from the shaft axis 103.

[0044] In the example shown, the offset 6 provides an offset face 7 on one side of the door actuator linkage 1 and a shoulder 8 on the opposite underside. As the depiction in Figure 2 shows, the lever 2 projects beyond the door leaf 202 and extends downward through the offset 6 at the linkage head 3 to allow connection to the output shaft 102. The shoulder 8 thereby engages the rear surface of the door leaf 202.

[0045] 3 and 5 show an imaginary boundary surface 10. The imaginary boundary surface 10 is perpendicular to the longitudinal axis 11 of the lever 2 and parallel to the shaft axis 103. At the same time, the forward end of the lever 2 or the offset surface 7 defines the position of this imaginary boundary surface 10. The offset surface 7 is set back from the boundary surface 10, thus configuring the free space 9 to be as large as possible.

[0046] In the exemplary embodiment shown, the offset surface 7 is formed with an oblique cross section 12 that is oblique to the longitudinal axis 11, thereby introducing an angle α of approximately 35 degrees. The oblique cross section 12 extends from an acute end 15 to an obtuse end 16.

[0047] 3 and 4 show a variant in which the offset surface 7 has an inclined section 12 and an abutment section 13. In the construction shown, the abutment section 13 is formed by an additional element 14, which would be assigned to the lever 2. The abutment section 13 could also be formed by an integral part of the lever.

[0048] FIG. 5 shows that the entire offset surface 7 can also be formed by the inclined section 12 such that the sharp end 15 of the inclined section 12 projects up to the imaginary boundary surface 10 .

[0049] The advantage of the abutment section 13 in its convex configuration becomes clear when viewing Figures 3 and 4, which show the guidance of the cable 18 through the free space 9. The door actuator linkage 1 can be rotated by up to 180 degrees relative to the door actuator 101. Such a rotation is perceptible when viewing Figures 3 and 4. The cable 18 comes into contact with the abutment section 13 in the case of rotation represented in Figure 4 and in the case of further rotation. Via the concave configuration of the abutment section 13, the bend that is defined is predefined at the maximum possible radius of the cable 18.

[0050] 3 and 4 show that adjacent to the lever 2, a cable channel 19 is formed laterally offset relative to the longitudinal axis 11. The cable 18 extends through this cable channel 19. The cable channel 19 is located inside the lever cladding 20.

[0051] The cable channel 19 opens into free space 9 at the blunt end 16 .

[0052] 3 and 4 also show that the door actuator linkage 1 includes a pivot member 17 that is fixedly connected to the door actuator 101 and functions to redirect the cabling from the substantially horizontal cabling in the free space 9 to a vertical routing in the direction of the door actuator 101.

[0053] The pivot member 17 is located radially outside the linkage head 3 and radially inside a radial cladding 21 which surrounds the linkage head 3 and laterally defines a free space 9 in addition to the offset surface 7.

[0054] The upper side of the free space 9, facing away from the linkage head 3, can be closed by a free space cladding, which is not shown, which then forms the upper boundary of the free space 9. The upper side of the lever 2 can also be coated accordingly.

[0055] 6 shows the radial distance 22 from the shaft axis 103 to the outer edge of the linkage head 3, measured perpendicularly to the shaft axis 103. This radial distance 22 must be configured to be correspondingly small, since otherwise the shoulder 8 (see FIG. 2) would collide with the door leaf 202. The overlap surface between the lever 2 and the linkage head 3 is therefore also defined. FIG. 6 shows that a material deposit 23 is applied onto the linkage head 3. At this point, the overlap of the lever 2 and the linkage head 3 and the welding of these two elements takes place, in particular by flat welding using a resistance welding method.

[0056] 5, 6 and 7 show that the linkage head 3 has a form-constraining element 24. This form-constraining element 24 has an inner polygonal edge for insertion onto the output shaft 102.

[0057] 7 shows that the configuration constraining element 24 is non-destructively detachable from the remaining components of the linkage head 3. As a result, the configuration constraining element 24 can be replaced and / or mounted on the linkage head 3 in different rotational positions relative to the linkage head 3. 。 [Item 1] A door actuator linkage (1), a lever extending along the longitudinal axis and integral with the linkage head with an offset; Equipped with the linkage head is configured for rotationally fixed mounting on an output shaft of a door actuator; the offset creates a free space for cable routing, the free space being defined by the linkage head and by an offset surface of the lever; a door actuator linkage, wherein the lever projects up to an imaginary boundary plane, the imaginary boundary plane being defined perpendicular to the longitudinal axis, and the offset surface being partially recessed from the imaginary boundary plane to increase the free space. [Item 2] Item 1. The door actuator linkage of item 1, wherein the offset surface has an inclined cross section, the inclined cross section extending across the entire offset surface or a portion of the offset surface. [Item 3] 3. The door actuator linkage according to claim 2, wherein the offset surface introduces a specific angle with respect to the longitudinal axis in the inclined cross section, the upper limit of the specific angle being 89 degrees, preferably 80 degrees, particularly preferably 75 degrees, and / or the lower limit of the specific angle being 30 degrees, preferably 40 degrees, particularly preferably 45 degrees. [Item 4] 4. The door actuator linkage of claim 2, wherein the inclined cross section extends from an acute angle end to an obtuse angle end, the acute angle end being closer to the imaginary boundary surface than the obtuse angle end. [Item 5] 5. The door actuator linkage of claim 4, wherein at least one cable channel is formed within the lever and / or between the lever and a lever cladding surrounding the lever and / or within the lever cladding. [Item 6] Item 6. The door actuator linkage of item 5, wherein the cable channel opens into the free space at the obtuse end. [Item 7] 7. The door actuator linkage of claim 6, wherein the cable channel extends horizontally laterally relative to the longitudinal axis. [Item 8] Item 10. The door actuator linkage of item 1, wherein the offset surface has a convex abutment cross-section that extends over a portion of the offset surface and is configured for abutment of a cable. [Item 9] a pivot member configured for stationary mounting on the door actuator and rotatable relative to the linkage head; a cable extending through the free space up to the pivot member; Equipped with Item 2. The door actuator linkage of item 1, wherein the linkage head is rotatable relative to the pivot member by at least 135 degrees, preferably at least 180 degrees. [Item 10] 10. The door actuator linkage of claim 9, wherein the pivot member is positioned radially outward of the linkage head and inward of a radial cladding surrounding the linkage head. [Item 11] 2. The door actuator linkage of claim 1, wherein the free space is defined by a free space cladding opposite the linkage head. [Item 12] Item 1. The door actuator linkage according to item 1, wherein a form-constraining element is arranged, preferably exchangeably, on the side of the linkage head facing away from the free space, the form-constraining element being configured for a form-fit connection to the output shaft. [Item 13] Item 1. The door actuator linkage of item 1, wherein the lever is overlapped with the linkage head and a downward weld is performed at the overlap. [Item 14] Item 10. The door actuator linkage of item 1, wherein the lever is rotatably connected to another lever to form a scissors-type linkage. [Item 15] The door actuator link mechanism according to any one of items 1 to 3, comprising a slide rail and a slide piece linearly guided within the slide rail, wherein the lever is rotatably connected to the slide piece. [Item 16] a door actuator having an output shaft; Item 1, the door actuator linkage according to item 1, wherein the linkage head is configured for rotationally fixed mounting on an output shaft. A door actuator assembly comprising: [Item 17] Item 17. A revolving door assembly comprising the door actuator assembly of item 16 and a door leaf, wherein the door actuator is mounted on the door leaf, the door actuator linkage is configured for mounting on a frame or a wall, and a shoulder formed by the offset engages with the back surface of the door leaf. [Explanation of symbols]

[0058] 1 Door actuator linkage 2 levers 3 Link mechanism head 4 slide rails 5 Slide Piece 6 offset 7 Offset Surface 8 Shoulder 9 free space 10 Virtual Boundary 11 Longitudinal axis 12 Inclined cross section 13 Contact cross section 14 Additional Features 15 Sharp Edge 16 Obtuse end 17 Pivot member 18 Cable 19 cable channels 20 Lever Cladding 21 Radial Cladding 22 Radial distance 23 Material deposition section 24 Form constraint elements 100 Door Actuator Assembly 101 Door actuator 102 Output shaft 103 Shaft axis 200 Revolving Door Assembly 201 frames 202 Door Leaf

Claims

1. A door actuator linkage, comprising: a lever extending along the longitudinal axis and integral with the linkage head with an offset; Equipped with the linkage head is configured for rotationally fixed mounting on an output shaft of a door actuator; the offset creates a free space for cable routing, the free space being defined by the linkage head and by an offset surface of the lever; a door actuator linkage, the lever protruding up to an imaginary boundary plane, the imaginary boundary plane being defined perpendicular to the longitudinal axis, and the offset surface being partially recessed from the imaginary boundary plane to increase the free space.

2. 2. The door actuator linkage of claim 1, wherein the offset surface has an angled cross section, the angled cross section extending across the entire offset surface or a portion of the offset surface.

3. 3. The door actuator linkage of claim 2, wherein the offset surface introduces a particular angle with respect to the longitudinal axis at the oblique cross section, the upper limit of the particular angle being 89 degrees and / or the lower limit of the particular angle being 30 degrees.

4. 4. The door actuator linkage of claim 2, wherein the inclined cross section extends from an acute angle end to an obtuse angle end, the acute angle end being closer to the imaginary boundary surface than the obtuse angle end.

5. 5. The door actuator linkage of claim 4, wherein at least one cable channel is formed within the lever and / or between the lever and a lever cladding surrounding the lever and / or within the lever cladding.

6. 6. The door actuator linkage of claim 5, wherein said cable channel opens into said free space at said blunt end.

7. 7. The door actuator linkage of claim 6, wherein said cable channel extends horizontally laterally relative to said longitudinal axis.

8. 2. The door actuator linkage of claim 1, wherein the offset surface has a convex abutment profile, the convex abutment profile extending over a portion of the offset surface and configured for abutment of a cable.

9. a pivot member configured for stationary mounting on the door actuator and rotatable relative to the linkage head; a cable extending through the free space up to the pivot member; Equipped with 2. The door actuator linkage of claim 1, wherein said linkage head is rotatable relative to said pivot member by at least 135 degrees.

10. 10. The door actuator linkage of claim 9, wherein the pivot member is disposed radially outward of the linkage head and inward of radial cladding surrounding the linkage head.

11. 2. The door actuator linkage of claim 1, wherein the free space is defined by a free space cladding opposite the linkage head.

12. 2. The door actuator linkage of claim 1, wherein a form restraining element is disposed on a side of the linkage head facing away from the free space, the form restraining element being configured for mating connection to the output shaft.

13. 2. The door actuator linkage of claim 1, wherein the lever is overlapped with the linkage head and a downward weld is made at the overlap.

14. 10. The door actuator linkage of claim 1, wherein the lever is rotatably connected to another lever to form a scissors-type linkage.

15. 4. The door actuator link mechanism according to claim 1, further comprising a slide rail and a slide piece linearly guided within the slide rail, wherein the lever is rotationally connected to the slide piece.

16. a door actuator having an output shaft; 2. The door actuator linkage of claim 1, wherein the linkage head is configured for rotationally fixed mounting on an output shaft. A door actuator assembly comprising:

17. 17. A revolving door assembly comprising the door actuator assembly of claim 16 and a door leaf, wherein the door actuator is mounted on the door leaf, the door actuator linkage is configured for mounting on a frame or a wall, and a shoulder formed by the offset engages with a back surface of the door leaf.

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