Rotating door which is driven so as to be swivelable around a pivot

An rotating door driven so as to be swivelable around a pivot of the rotating door includes a rotary bearing; a connection element having a driver piece configured to receive the pivot of the rotating door, the driver piece being mounted in the rotary bearing; and a drive connectable to the pivot of the rotating door in frictional engagement via the connection element.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention is directed to a rotating door driven so as to be swivelable around a pivot.

2. Description of the Related Art

In known rotating doors of this type, the drive also functions as an upper bearing location for the pivot of the rotating door. This requires a massive design of the drive housing and bearing with the result that corresponding drives have quite a large construction and a complicated design.

SUMMARY OF THE INVENTION

Therefore, it is an object of the present invention to provide a rotating door driven so as to be swivelable around a pivot in which the drive and the bearing only take up a small installation space and in which, further, the bearing can be realized inexpensively.

In a rotating door driven so as to be swivelable around a pivot, the above-stated object is met according to an aspect of the invention in that the pivot is received in a driver piece and this driver piece is mounted in a rotary bearing, and in that the drive can be connected to the pivot of the rotating door in frictional engagement via a connection element, which also comprises the driver piece. Because of the arrangement according to the invention, the pivot of the rotating door is decoupled from the drive and obtains its own bearing with the result that impacts from the movement of the door are not transmitted into the drive. Therefore, the drive can have a more slender constructional shape and a cost-optimized design. Further, the rotating door can be mounted independently from the drive so that the drive need not be connected to the pivot of the rotating door until later, so as to protect its components, for example, in the construction phase.

The connection element that connects the rotational pivot and the drive to one another is constructed substantially in the form of a flat, cylindrical disk according to an advantageous embodiment. According to a preferred embodiment, it is divided and comprises a bottom part and a top part.

The bottom part advantageously carries a stop for limiting the door movement, and the top part has an adapter piece for connecting to the drive.

In order to save on installation space, the bottom part and the top part can be joined in radial direction according to an advantageous further development. The bottom part and top part can accordingly be mounted in a radial direction, whereas conventional connection elements must generally be mounted axially and therefore require a larger installation space for mounting.

The bottom part and the top part are preferably connected to one another by two screws, which are arranged parallel to one another and which penetrate the connection element on both sides of its pivot.

According to an advantageous embodiment, the two screws are mounted in the top part via elastic buffers and can be screwed into the bottom part. This allows a radial and angular offset between the bottom part and the top part, the order of magnitude of which can be adjusted through the degree of preloading of the elastic buffer and the selected gap dimensions between the bottom part and top part.

According to a preferred embodiment, the driver piece is fastened to a support held at the bottom part in an exchangeable manner in order to carry out a simple adaptation to different diameters of the rotational pivot. Accordingly, a corresponding rotary bearing can be selected and used depending on the required diameter.

According to a preferred further development, the adapter piece is also fastened to a support held at the bottom part in an exchangeable manner. This also enables a simple adaptation to different drives.

The driver piece and/or the adapter piece can advantageously be held at the support by positive engagement/and or bonding engagement. Alternatively, the driver piece and/or the adapter piece can also be press fit in the support.

DETAILED DESCRIPTION OF THE PRESENTLY PREFERRED EMBODIMENTS

The drawings substantially show only the drive and the connection element, while the rotating door and the pivot thereof have been omitted for the sake of clarity.

FIG. 1shows a drive1for a rotating door received in a housing2. The pivot of the rotating door is mounted in a rotary bearing, not shown, which is independent from the drive1. A driver piece3, which serves to transmit a torque, is supported at the rotary bearing. A connection element4, which couples the pivot of the drive to the pivot of the rotating door, is provided so that the drive1can move the rotating door.

The connection element4, which is shown in various views and sections inFIGS. 2 to 8, substantially has the shape of a flat, cylindrical disk. This disk has a substantially tangentially extending stop5that cooperates with a stopper6, which is arranged at the drive1or at the housing2thereof to limit the movement of the rotating door.

The connection element4is formed in a divided manner and comprises a bottom part4aand a top part4b.The bottom part4aand the top part4bare connected to one another via two screws7, which are arranged parallel to one another and which penetrate the connection element4laterally of the pivot thereof. The screws7are supported in the top part4bvia elastic buffers8and can be screwed into the bottom part4a.Due to this design, bottom part4aand top part4bcan be joined in a radial direction.

The stop5and the driver piece3are arranged at the bottom part4a.However, whereas the stop5is formed in one piece with the bottom part4a,the driver piece3is received in a support9, which is exchangeably mounted at the bottom part4a.For example, the support9can be connected to the bottom part4avia axially arranged screws10.

An adapter piece11, which serves to connect to the drive1, is arranged at the top part4b. The adapter piece11is likewise supported in a support12which is fastened to the top part4bso as to be exchangeable, e.g., via axially arranged screws13.

Due to the exchangeability of driver piece3and adapter piece11, the connection element4can easily be adapted to different diameters of the pivot of the rotating door or of the drive pivot.

The driver piece3and/or the adapter piece11can be held by positive engagement and/or bonding engagement at the support9and12, respectively. Alternatively, the driver piece3and/or the adapter piece11can also be press fit to the support9and12, respectively.

The foregoing description of the present invention only serves for purposes of illustration and not for the purpose of limiting the invention. Various changes and modifications are possible within the framework of the invention without departing from the scope of the invention and equivalents thereof.