DE102024201136B3 - drive system for revolving doors - Google Patents

Abstract

A drive system (10) for revolving doors (50) comprises a plurality of revolving door drives (11), in particular automatic revolving door drives, each of which has a shaft (13) for delivering a drive power and which differ from one another in terms of their drive power, such that a revolving door drive (11) can be selected from the revolving door drives (11) based on its drive power for the respective revolving door (50), and a plurality of articulation elements (15), wherein the respective articulation element (15) can be connected to a leaf (51) or a frame of the respective revolving door (50) via a rail (53) or a bearing block, wherein the articulation elements (15) differ from one another and each articulation element (15) is assigned to one of the revolving door drives (11). The respective articulation element (15) can only be coupled in a rotationally fixed manner to the shaft (13) of the respective associated revolving door drive (11) and the shaft(s) (13) of the revolving door drives (11) with lower drive power, but not to the shaft(s) (13) of the revolving door drives (11) with higher drive power.

Description

The invention relates to a drive system for revolving doors with several revolving door drives.

A revolving door drive can, for example, be mounted on a wall near a door leaf or on a frame associated with the door leaf and has a shaft that is connected to the door leaf by means of a linkage element in such a way that when the revolving door drive is operated, an opening force acts on the door leaf via the shaft and the linkage element. A revolving door drive can alternatively also be mounted on a door leaf.

Out of DE 88 01 897 U1 A door closer is known which can be used for a revolving door and which has a piston which can be moved against the force of a return spring and a hydraulic overflow device from one cylinder chamber to the other in a liquid-tight housing.

The DE 10 2005 029 625 A1 a drive for the leaf of a door with an output shaft and a force-transmitting lever arranged between the door leaf and the drive. The lever and the output shaft are connected to one another in a rotationally fixed manner via an intermediate piece, whereby the intermediate piece and the output shaft have a corresponding shaft toothing.

Out of DE 201 21 806 U1 A door drive with a rotating shaft is known. The shaft has a force transmission element that is fixed in place by the driver, which allows a door to be moved. The driver has a toothing.

In the EP 1 482 118 A1 A drive for a door or window is described, which comprises a closer shaft with a bevel gear and a corresponding counterpart of the closer shaft engaging in the gear.

Since different door classes require revolving door drives with different drive powers in order to provide different opening forces depending on the application and weight of the door, it is advisable to construct a drive system of the type mentioned above in a modular manner so that a suitable revolving door drive can be selected for each revolving door. The load acting on the articulation element also differs with the different drive powers, so that with such a modular system it must also be taken into account that levers with different levels of stability are required, each of which is matched to the drive power of the corresponding revolving door drive.

It is generally not a problem if a linkage element is mounted with a revolving door drive that can absorb greater torque than would be required for operation with the corresponding revolving door drive. This can even make repairs easier, as a technician does not always have to carry linkage elements of all sizes. However, problems can arise if a linkage element is mounted and operated together with a revolving door drive that is not sufficiently dimensioned for operation with the corresponding revolving door drive, i.e. whose performance class is not sufficient for this revolving door drive. This can particularly lead to damage to the linkage element due to excessive stress.

The invention is based on the object of providing a drive system for revolving doors, in which the installation of a linkage element with insufficient performance class for the respective revolving door drive is prevented.

This object is achieved by a drive system with the features of claim 1 or with the features of claim 2. Advantageous further developments are the subject of the dependent claims and emerge from the description and the drawings.

The drive system according to the invention is intended for use with revolving doors and comprises a plurality of revolving door drives, in particular automatic revolving door drives, each of which has a shaft for delivering a drive power and which differ from one another in terms of their drive power, so that a revolving door drive can be selected from the revolving door drives based on its drive power for the respective revolving door, and a plurality of articulation elements, wherein the respective articulation element can be connected to a leaf or a frame of the respective revolving door via a rail or a bearing block, wherein the articulation elements differ from one another and each articulation element is assigned to one of the revolving door drives. The respective articulation element can only be coupled in a rotationally fixed manner to the shaft of the respective assigned revolving door drive and, if present, to the shaft or shafts of the revolving door drives with lower drive power, but not, if present, to the shaft or shafts of the revolving door drives with higher drive power.

According to a further aspect, the invention relates to a drive system for revolving doors, comprising a plurality of revolving door drives, in particular automatic revolving door drives, each of which has a shaft for delivering a drive power and which differ from one another in terms of their drive power. which differ so that a revolving door drive can be selected from the revolving door drives based on its drive power for the respective revolving door, and a plurality of articulation elements, wherein the respective articulation element can be connected to a leaf or a frame of the respective revolving door via a rail or a bearing block, wherein the articulation elements differ from one another and each articulation element is assigned to one of the revolving door drives and can be coupled in a rotationally fixed manner to the shaft of the assigned revolving door drive. The shafts each have an axis and an output member assigned to the axis, and the respective axis can only be coupled in a rotationally fixed manner to the respectively assigned output member and, if available, to the output member(s) of the shafts of the revolving door drives with lower drive power, but not, if available, to the output member(s) of the shafts of the revolving door drives with higher drive power.

For example, revolving door drives and linkage elements can be divided into different performance classes. For example, the performance classes can be designated as S (small), M (medium) and L (large), so that in this case there would be three performance classes. However, there can also be more or fewer than three performance classes. The names of the performance classes are also basically arbitrary and are for illustrative purposes only.

The expression “if present” refers, for example, to the fact that the articulation element with the lowest performance class of the articulation elements can be coupled in a rotationally fixed manner to the shaft of the associated revolving door drive, but not to a shaft of a revolving door drive with a lower drive power, since a revolving door drive with a lower drive power than the drive power of the associated revolving door drive is not present in this case. Accordingly, an axle to which an output member is assigned can be coupled in a rotationally fixed manner to this output member. However, if the associated output member belongs to the shaft of the revolving door drive with the lowest drive power among the revolving door drives, an output member of a shaft of a revolving door drive with a lower drive power is also not present in this case. The same applies to the articulation element with the highest performance class and to the axle that is assigned to the output member of the shaft of the revolving door drive with the highest drive power.

A drive system can basically be designed as an automatic revolving door drive, for example with an electric drive, but can also be implemented using a door closer. In the case of a door closer, the drive can be represented by a spring that is tensioned when opening, relaxes when the holding force drops and thus drives the closing process.

If the rail is attached to the leaf of the revolving door, the revolving door drive is usually mounted on the associated wall. Alternatively, the rail can also be mounted on the frame or the wall. In this case, the revolving door drive is usually mounted on the leaf of the revolving door. The revolving door drive can then exert an opening force via the linkage element, which opens the revolving door.

The two different aspects of the present invention have in common that the rotationally fixed coupling ensures that each articulation element can only be rotationally fixedly coupled to the shaft of the respective associated revolving door drive and the shafts of the revolving door drives with lower drive power, but not to the shafts of the revolving door drives with higher drive power. This avoids a revolving door drive being combined with an articulation element that is not designed for a revolving door drive of this power class. Any incorrect assembly by the fitter due to negligence is prevented by the fact that each articulation element cannot be coupled to shafts of the revolving door drives with higher drive power. This avoids, among other things, excessive stress on the respective articulation element and the resulting repairs and downtime. The rotationally fixed coupling can basically be provided according to the first aspect between the shaft and the articulation element or according to the second aspect, which corresponds to a multi-part shaft, between the output member and the axle, wherein according to the second aspect the articulation element as a spare part is basically to be used with the corresponding axle in the package, so that the coupling between the articulation element and the output member of the corresponding categories can be ensured.

According to the present invention, for example, a linkage element of the smallest power class S could only be coupled with the revolving door drive of the same power class S in order to prevent mechanical overloading of the linkage element. A linkage element of the medium power class M, on the other hand, could be coupled with a revolving door drive of the power classes S and M, whereas a linkage element of the highest power class L could be coupled with a revolving door drive of all power classes S, M and L. This means that the linkage element must always come from at least the same power class as the corresponding revolving door drive. While compatibility is given in one direction, in that linkage elements of higher power classes can also be coupled with revolving door drives of lower power power classes can be coupled, the reverse compatibility is undesirable and therefore not given, i.e. linkage elements of smaller power classes cannot be coupled with revolving door drives of larger power classes.

In a preferred embodiment, the shafts and the articulation elements each have mechanical coding features for the rotationally fixed coupling, which on the one hand comprise basic shapes of opposite shapes in cross-section and on the other hand comprise additional drive performance-specific coding features for the revolving door drive(s) that do not have the highest drive power and the articulation element(s) assigned to these revolving door drives, or the axles and the output members each have mechanical coding features for the rotationally fixed coupling, which on the one hand comprise basic shapes of opposite shapes in cross-section and on the other hand comprise additional drive performance-specific coding features for the revolving door drive(s) that do not have the highest drive power. To clarify, it should be mentioned that the mechanical coding features of the shaft for the revolving door drive with the highest drive power and the articulation element assigned to this revolving door drive, i.e. the articulation element with the highest performance class, can also comprise additional drive performance-specific coding features. However, this is not absolutely necessary, since even without these, the required compatibility is only guaranteed in one direction. The same applies to the mechanical coding features of the output link and the axis for the revolving door drive with the highest drive power.

Basically, the shafts and articulation elements or the output links and the axles are provided with the drive power-specific coding features, but not the shaft and the articulation element or the output link and the axle of a performance class, namely the largest performance class with the highest drive power. This also prevents coupling with incompatible components for this performance class, since the latter are provided with drive power-specific coding features that prevent coupling. The drive power-specific coding features thwart an accidental or deliberate attempt to couple a articulation element of a lower performance class with a revolving door drive of a higher performance class, contrary to the specification.

The drive power-specific coding features can have one or more projections and one or more recesses of opposing shapes on the components involved in the rotationally fixed coupling, i.e. on the shaft and articulation element or on the output member and axle. For example, the projections and recesses can correspond due to their number, position, shape and/or size. If the projections and recesses are not of opposing shapes, coupling of the articulation element to the shaft may be prevented, for example if the projections are larger or arranged in different positions than the recesses. By appropriately designing the components involved in the coupling and in particular the projections and recesses, unwanted coupling can be prevented.

For example, the projections and recesses for a revolving door drive with a lower drive power and a linkage element associated with this revolving door drive can be larger than for a revolving door drive with a comparatively higher drive power and a linkage element associated with this revolving door drive, or the projections and recesses for a revolving door drive with a lower drive power can be larger than for a revolving door drive with a comparatively higher drive power.

It goes without saying that the drive power-specific coding features can have oppositely shaped rounded corners on the basic shapes of the components involved in the coupling. The components to be coupled together in a rotationally fixed manner can have a polygonal cross-section, for example an octagon, with the respective corners being rounded with different radii depending on the performance class.

In particular, the radii of the rounded corners for a revolving door drive with a lower drive power and a linkage element associated with this revolving door drive can be larger than for a revolving door drive with a comparatively higher drive power and a linkage element associated with this revolving door drive, or the radii of the rounded corners for a revolving door drive with a lower drive power can be larger than for a revolving door drive with a comparatively higher drive power.

Preferably, the basic shapes are identical for all revolving door drives and linkage elements, or the basic shapes are identical for all revolving door drives. Thus, the mechanical coding features in the different performance classes only differ due to the drive performance-specific coding features.

Advantageously, the respective articulation element has a lever and a bushing attached to the lever, in particular a bushing welded to the lever, for receiving the shaft or shafts that can be coupled in a rotationally fixed manner. Mechanical coding features must be provided on the bushings of the articulation elements and the shafts of the revolving door drives.

• 1 eine Drehtür mit einem Antriebssystem,
• 2 eine Detailansicht von einer Welle mit einem Abtriebsglied und einer Achse und von einem Anlenkelement mit einer Buchse,
• 3(a) eine Querschnittsansicht eines Beispiels für eine Buchse und eine Achse eines erfindungsgemäßen Antriebssystems der Leistungsklasse S,
• 3(b) eine Querschnittsansicht eines Beispiels für eine Buchse und eine Achse eines erfindungsgemäßen Antriebssystems der Leistungsklasse M,
• 3(c) eine Querschnittsansicht eines Beispiels für eine Buchse und eine Achse eines erfindungsgemäßen Antriebssystems der Leistungsklasse L und
• 4 eine Querschnittsansicht eines Beispiels für eine Buchse und eine Achse eines erfindungsgemäßen Antriebssystems, die als antriebsleistungsspezifische Kodiermerkmale abgerundete Ecken aufweisen.

The invention is explained below using an exemplary embodiment shown schematically in the drawings. In the drawings:

• 1 a revolving door with a drive system,
• 2 a detailed view of a shaft with an output member and an axle and of a linkage element with a bushing,
• 3(a) a cross-sectional view of an example of a bushing and an axle of a drive system according to the invention of power class S,
• 3(b) a cross-sectional view of an example of a bushing and an axle of a drive system according to the invention of power class M,
• 3(c) a cross-sectional view of an example of a bushing and an axle of a drive system according to the invention of power class L and
• 4 a cross-sectional view of an example of a bushing and an axle of a drive system according to the invention, which have rounded corners as drive power-specific coding features.

First, 1 very basic the structure and components of a drive system 10 for a revolving door 50. The revolving door 50 has a leaf 51 which is arranged rotatably on a frame (not shown) by means of door hinges 55. A rail 53 is attached to the leaf 51.

In the present example, the drive system 10 has an electric revolving door drive 11 with an electric motor that is mounted on the wall above the leaf 51. The revolving door drive 11 has a shaft 13, via which a drive power of the revolving door drive 11 is delivered in the form of a torque. The drive power is transmitted to the shaft 13 in a basically known manner, which is not described in more detail here.

As in 2 shown, the shaft 13 is designed in several parts and has an output member 29 and an axle 25, which in this example prevent axial displacement via a screw 27 and a disk 26 and are rotationally fixed to one another due to a toothing on the inner circumference of the output member 29 and on the outer circumference of the axle 25. The axle 25 is also connected to an end section of a lever 21 of a linkage element 15 by a further screw 28. The linkage element 15 is thus rotationally fixedly coupled to the shaft 13 via the axle 25. A bushing 23, which can in particular be a welded bushing welded to the lever 21 as part of the linkage element 15, is provided between the axle 25 and the lever 21. The other end of the lever 21 runs, as in 1 shown, in the rail 53, for example by means of a sliding block not shown.

The drive system 10 is designed as a modular system. This means that the system 10 has several revolving door drives 11 that are differently dimensioned, so that depending on the revolving door and application, a revolving door drive 11 of different strength can be selected from the revolving door drives 11 and installed with the revolving door. Accordingly, the drive system also has differently dimensioned articulation elements 15, with each revolving door drive 11 being assigned one articulation element 15, since the performance class of the respective articulation element 15 must be matched to the respective mechanical load and thus to the performance of the revolving door drive 11 in order to avoid overstressing the respective articulation element 15 and resulting damage.

In the present exemplary embodiment, the drive system 10 has three performance classes S, M and L, whereby the revolving door drive 11 of performance class L is the strongest and the revolving door drive 11 of performance class S is the weakest of the revolving door drives 11, and the revolving door drive 11 of performance class M is located between the other two revolving door drives 11 in terms of its drive power. Since a sufficiently dimensioned articulation element 15 with regard to its performance class must be used for each revolving door drive 11 in order to avoid excessive stress and resulting damage, the drive system 10 also has three articulation elements 15 of the same classes S, M and L, so that each articulation element 15 is assigned to the revolving door drive 11 of the corresponding performance class.

As from 3(a) to 3(c) as well as 4 As can be seen, the invention ensures that articulation elements 15 of higher classes can also be coupled with weaker revolving door drives 11, but not vice versa in order to avoid overloading. In the present examples, mechanical coding features are provided on the axis 25 and on the bushing 23 of the articulation element 15.

The mechanical coding features include, on the one hand, the basic shapes of the coupling elements, which are formed in opposite cross-sections. ligated components, namely the bushing 23 and the axle 25. In the present case, these components have an octagonal basic shape in the inner and outer cross-section. On the other hand, the mechanical features include additional drive power-specific coding features 17, 19 in the form of corresponding projections 19 and recesses 17, as in 3(a) to 3(c) shown, or in the form of rounded corners 17, 19, as in 4 shown. The additional drive performance-specific coding features 17, 19 therefore differ depending on the performance class and thus have the special task of preventing the combination of a too weak linkage element 15 with a too strong revolving door drive 11. The drive performance-specific coding features 17, 19 are in 3(a) to 3(c) on the straight sections of the octagonal basic shape. In 4 In contrast, the drive power-specific coding features 17, 19 are formed at the corners of the octagonal basic shape. In principle, it is also conceivable to combine drive power-specific coding features 17, 19 at the straight sections and the corners. It is also understood that other basic shapes of the respective inner and outer circumferences are also possible.

Depending on the respective class S, M or L, the mechanical drive power-specific coding features 17, 19 are of different sizes. 3(a) a bushing 23 and an axle 25 of a shaft 13 of category S. The drive power-specific coding features 17, 19 are compared to 3(b) , which shows a bushing 23 and an axis 25 of a shaft 13 of category M, is more pronounced. In 3(c) the drive power-specific coding features 17 in the form of projections 19 and recesses 17 are completely missing.

This leads to the bushing 23 of the articulation element 15 also being 3(c) can be combined with the axis 25 of the shaft 13 of categories S and M. However, this is not possible the other way round, since the projections 19 on the bushings 23 of classes S and M would come into contact with the material of the axis 25 of the shaft 13 of class L.

In the embodiment according to 4 The problem is solved by designing the drive power-specific coding features 17, 19 as rounded corners. The radius of the rounded corners can be varied, with class S having the largest radius and class L having the smallest radius. 4 but only shows one of these classes.

Other alternative embodiments are conceivable. For example, the drive power-specific coding features 17, 19 can vary due to their shape, size and/or position.

While the embodiments shown here show the coding features including the drive power-specific coding features 17, 19 on the bushing 23 and the axle 25, these can instead also be provided, for example, on the output member 29 and the axle 25, in which case the axle 25 is to be supplied in a package with replacement articulation elements 15 in order to prevent the replacement articulation element 15 from being combined with the shaft 13 of a more powerful revolving door drive 11.

list of reference symbols

10

drive system

11

revolving door drive

13

Wave

15

articulation element

17

coding features

19

coding features

21

lever

23

socket

25

axis

27

screw

29

output link

50

revolving door

51

wing

53

rail

55

door hinge

Claims (10)

Drive system (10) for revolving doors (50), comprising a plurality of revolving door drives (11), in particular automatic revolving door drives, each of which has a shaft (13) for delivering a drive power and which differ from one another in terms of their drive power, so that a revolving door drive (11) can be selected from the revolving door drives (11) based on its drive power for the respective revolving door (50), and a plurality of articulation elements (15), wherein the respective articulation element (15) can be connected to a leaf (51) or a frame of the respective revolving door (50) via a rail (53) or a bearing block, wherein the articulation elements (15) differ from one another and each articulation element (15) is assigned to one of the revolving door drives (11), wherein the respective articulation element (15) is only connected to the shaft (13) of the respective assigned revolving door drive (11) and the shaft(s) (13) of the revolving door drives (11) with lower drive power, but cannot be coupled in a rotationally fixed manner to the shaft(s) (13) of the revolving door drives (11) with higher drive power. Drive system (10) for revolving doors (50), comprising several revolving door drives (11), in particular automatic revolving door drives, each of which has a shaft (13) for delivering a drive power and which differ from one another in terms of their drive power, so that a revolving door drive (11) can be selected from the revolving door drives (11) based on its drive power for the respective revolving door (50), and several articulation elements (15), wherein the respective articulation element (15) can be connected to a leaf (51) or a frame of the respective revolving door (50) via a rail (53) or a bearing block, wherein the articulation elements (15) differ from one another and each articulation element (15) is assigned to one of the revolving door drives (11) and can be coupled in a rotationally fixed manner to the shaft (13) of the assigned revolving door drive (11), wherein the shafts (13) each have an axis (25) and an output member assigned to the axis (25). (29) and the respective axis (25) can only be coupled in a rotationally fixed manner to the respectively assigned output member (29) and the output member(s) (29) of the shafts (13) of the revolving door drives (11) with lower drive power, but not to the output member(s) (29) of the shafts (13) of the revolving door drives (11) with higher drive power. drive system (10) according to claim 1 or 2 , characterized in that - as far as on patent claim 1 related - for the rotationally fixed coupling, the shafts (13) and the articulation elements (15) each have mechanical coding features which, on the one hand, have basic shapes of opposite shape in cross-section and, on the other hand, for the revolving door drive(s) (11) which do not have the highest drive power and the articulation element(s) (15) assigned to these revolving door drives (11) additional drive power-specific coding features (17, 19), or that - as far as patent claim 2 related - for the rotationally fixed coupling, the axes (25) and the output members (29) each have mechanical coding features which, in cross-section, on the one hand comprise basic shapes of opposite shapes and, on the other hand, for the revolving door drive(s) (11) which do not have the highest drive power, additional drive power-specific coding features (17, 19). drive system (10) according to claim 3 , characterized in that the drive power-specific coding features (17, 19) have one or more projections (19) and one or more counter-shaped recesses (17) on the components (13, 15; 25, 29) involved in the rotationally fixed coupling. drive system (10) according to claim 4 , characterized in that the projections (19) and recesses (17) for a revolving door drive (11) with a lower drive power and an articulation element (15) assigned to this revolving door drive (11) are larger than for a revolving door drive (11) with a comparatively higher drive power and an articulation element (15) assigned to this revolving door drive (11), or that the projections (19) and recesses (17) for a revolving door drive (11) with a lower drive power are larger than for a revolving door drive (11) with a comparatively higher drive power. Drive system (10) according to one of the Claims 3 until 5 , characterized in that the drive power-specific coding features have counter-shaped rounded corners (17, 19) on the basic shapes of the components involved in the coupling (13, 15; 25, 29). drive system (10) according to claim 6 , characterized in that the radii of the rounded corners (17, 19) for a revolving door drive (11) with a lower drive power and a linkage element (15) assigned to this revolving door drive (11) are larger than for a revolving door drive (11) with a comparatively higher drive power and a linkage element (15) assigned to this revolving door drive (11), or that the radii of the rounded corners (17, 19) for a revolving door drive (11) with a lower drive power are larger than for a revolving door drive (11) with a comparatively higher drive power. Drive system (10) according to one of the Claims 3 until 7 , characterized in that the basic shapes for all revolving door drives (11) and articulation elements (15) are identical, or that the basic shapes for all revolving door drives (11) are identical. Drive system (10) according to one of the preceding claims, characterized in that the respective articulation element (15) has a lever (21) and a bushing (23) attached to the lever (21) for receiving the shaft (13) or shafts (13) which can be coupled in a rotationally fixed manner. drive system (10) according to claim 9 , characterized in that the mechanical coding features on the bushings (23) of the linkages elements (15) and the shafts (13) of the revolving door drives (11).

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