EP1716309B1 - Revolving door drive equipped with emergency release mechanism - Google Patents

Description

The invention relates to a drive device for driving a pivotable about a vertical axis gate, ie, a swing gate operator, having the features of the preamble of the appended claim 1, as it is known from US 2002/0152682 A1 is known.

Like other door types, there are also swing gate operators with emergency release devices. These serve to be able to open the gate even then, when otherwise the gate motor-swinging motor drive unit has failed. Usually, such motor drive units are self-locking, so that the leaves are only motor-driven and resist manual movement. What is advantageous for burglary protection is disadvantageous in the event of a power failure or the like incidents with failure of the engine. Previous emergency release devices provide measures on the motor drive unit or its transmission for uncoupling the door leaf.

The CH 683 496 A5 describes a hospital bed and a linear drive for adjusting a portion of the bed surface of the hospital bed. The linear drive is designed as a spindle drive. In order to manually move the driven part of the hospital bed in emergency mode, a connection part that can be connected to the moving part of the hospital bed, connected via a lockable with a bolt ball bearing to the spindle. The only use for this linear drive is a hospital bed is described.

From the US 4,735,018 is a swing gate operator for driving a pivotable about a vertical axis gate with a linear thrust unit known. This push unit pivots two legs of a lever mechanism to each other. The free end of a first leg is connected to a goalpost. The free end of the second leg is connected via a lockable with a padlock bolt to the gate. For an emergency opening of the door leaf, for example in case of power failure, the bolt can be removed after opening the padlock and so the whole of Hebelwerk and swing door drive existing unit can be decoupled from the door leaf can be swung away, so that the door leaf can be opened manually.

From the US 2002/0152682 A1 a Drehtorantriebsvorrichtung with the features of the preamble of claim 1 is known. An emergency unlocking device is not designed here for the purpose of manual movement during power outages, but as overload clutch. For this purpose, a nut is designed to be split on the wing connecting part, which is in engagement with a driven spindle. In case of overload, the nut parts are separated from each other so as to release the spindle.

The invention has the object of providing a drive device according to the preamble of the attached claim in such a way that the emergency release is designed with simpler design measures cheaper and easier to handle.

This object is achieved by a swing gate operator with the features of claim 1.

Accordingly, in the swing door drive according to the invention, a tension and compression unit is provided, which has a motor drive unit as a first element to be arranged in a stationary pivotable manner and a wing connection unit as the second element.

According to the invention, the emergency unlocking device is no longer associated with the motor drive unit unit to be fixedly connected but with the wing connection unit. There it is much more accessible. In addition, it can be so amazingly simple Implement a simple, yet secure emergency release.

By far the most common type of construction of the drive of the push and pull unit for swing gate operators is the spindle drive. The motor unit, which is attached to a stationary pivotally supported support unit, or part thereof, drives a threaded spindle rotating. A wing connector then has a cam which is linearly moveable relative to the motor drive assembly unit and threadedly engaged with the threaded spindle. Turning the threaded spindle shifts the driver linearly. This sliding movement acts on the pivotable mounting of the swing gate operator for pivoting the door leaf about its vertical axis. With such a construction, the invention can be realized quite simply by virtue of the fact that the wing connection part has a door fitting for the pivotable connection to the door leaf, which is connected rotatably but axially firmly to the driver. The emergency unlocking device preferably has a releasable lock for blocking this relative rotation. In normal operation the lock is active; the driver is rotationally fixed to the door fitting. This attacks on the gate and is therefore not rotatably supported. For this reason, the driver is not rotatable, and it can be easily moved over the threaded engagement on the spindle. In emergencies, such as power failure, one solves the barrier by means of the emergency release, so that the driver is rotatable relative to the gate fitting. If you move the gate by hand, the driver can be turned; he can screw along along the fixed threaded spindle, so that the gate is manually movable.

According to the invention, this lock is lockable designed to give only authorized persons access to the manual mobility after pressing the emergency release.

Advantageous embodiments of the invention are the subject of the dependent claims.

The relative rotation of the driver relative to the threaded spindle can be done in various ways. The driver is cylindrical, for example, as a kind of push cylinder. He can then intervene in a guide device in the form of a guide cylinder. Due to the cylindrical shape are guide cylinder and Schubzy Preferably, relatively rotatable to each other. The driver is thus movable with unlocked lock relative to the gate fitting and relative to the guide means.

Or, the driver is linearly movable rotatably guided on a guide device, which in turn is axially fixed but rotatably mounted relative to the motor drive unit.

The lock of the emergency release is preferably formed by a bolt having a gripping part for detecting and removing the same. The bolt can engage in corresponding through holes on the driver and the door fitting. Preferably, the passage openings of at least one of these two parts are so large that the bolt engages with play and thus is easily inserted and removed.

The bolt is preferably inserted from top to bottom. He preferably has a stop at the top so that he can not fall down. At the other end, preferably the lower end, a locking device or locking means for holding the bolt may be provided in its through holes. Instead of such a bolt, a padlock can also be passed through the concentric through holes which can be arranged concentrically with one another. If the bolt is used, it is preferably provided at the end remote from the gripping part with an opening for a padlock.

Fig. 1

eine perspektivische Ansicht eines Drehtorantriebes;

Fig. 2

eine Schnittansicht durch den Drehtorantrieb von Fig. 1 entlang einer vertkalen Mittel-Längsebene; und

Fig. 3

ein Detail von Fig. 2 und zwar desjenigen Endes des Drehtorantriebes, das zum Anschluss an einen um eine Hochachse schwenkbaren Torflügel bestimmt ist.

An embodiment of the invention will be explained in more detail with reference to the accompanying drawings. It shows:

Fig. 1

a perspective view of a Drehtorantriebes;

Fig. 2

a sectional view through the swing gate operator of Fig. 1 along a vertical central longitudinal plane; and

Fig. 3

a detail of Fig. 2 namely that end of the swing gate operator, which is intended for connection to a pivotable about a vertical axis gate.

The in Fig. 1 illustrated swing gate operator 10 has a trained as a telescopic device 12 push and pull unit for driving a pivotable about a vertical axis gate (not shown), as he often for example at entrances to land find is. The telescopic device 12 has, as a first element, a wing connection part 14 which can be connected pivotably to the door leaf and, as a second element, a support unit 16 which is to be mounted so as to be movable in a swiveling manner.

The wing connection part 14 has a driver in the form of a push cylinder 18 and a door fitting 20 attached thereto. The push cylinder 18 is telescopically slidably received in the support unit 16. The door fitting 20 has a slot 22 for receiving a horizontally disposed bearing lug of the door leaf, which by means of a pivot pin (not shown) in through holes 24 on the door fitting 20 can be pivotally mounted.

The support unit 16 has a fastening device 26, by means of which it can be pivotally mounted, for example, on a goalpost (not shown) and supported. The fastener 26 is attached to a housing 28 housing a motor drive unit in the form of a geared electric motor 30 (see Fig. 2 ). In front of the housing 28 is a guide device for the gate operator, ie the push cylinder 18, in the form of a cylindrical guide tube 32 which is fixedly connected to the lower shell of the housing 28.

The swing door operator 10 further has an emergency unlocking device 34, which is formed on the wing connection part 14 and has a removable lock in the form of a locking bolt 36.

According to Fig. 2 Referring now to the motor drive unit in addition to the electric motor 30 and the gear still a trapezoidal threaded spindle 38. The threaded spindle 38 is rotatably mounted on a first deep groove ball bearing 40 in the guide tube 32 and extends concentrically therewith over a majority of its length , The threaded spindle 38 is rotatably driven by the electric motor 30 and its gear. The thrust cylinder 18 extends in the illustrated an end position over almost the entire length of the guide tube 32 and is received therein between the guide tube 32 and the threaded spindle 38. About a arranged on the drive end of the thrust cylinder 18 threaded sleeve 42 of the thrust cylinder 18 with the threaded spindle 38 in threaded engagement. The gear motor 30 with (electric motor) with gear) is mounted in the housing 28 to a motor mount 44. Between the threaded spindle 38 and the geared motor is a connecting piece 46 for connecting the Motor shaft or the output shaft of the transmission with the threaded spindle 38 is provided. The guide tube 32 is inserted into a corresponding cylindrical receiving opening 48 on the front side of the housing 28 and fastened there with a fastening screw 50.

It can be seen that in this arrangement, upon rotation of the threaded spindle 38 relative to the push cylinder 18, a linear displacement thereof takes place along the axis of rotation relative to the support unit 16.

The following is based on the representation of Fig. 3 the structural design of the wing connection part 14 explained in more detail.

The thrust cylinder 18 is mounted on the wing-side end of the guide tube 32 in a guide bush 52. The guide bush 52 has a cylindrical inner surface, so that the thrust cylinder 18 is rotatably and axially displaceably guided on this inner surface and on a corresponding cylindrical outer surface of the threaded sleeve 42 relative to the guide tube 32. Inside the push cylinder 18, a second deep groove ball bearing 54 is axially fixed at the wing side end. The second deep groove ball bearing 54 is defined by notches 56 in the thrust cylinder 18. At the inner race of the second deep groove ball bearing 54 is a threaded shaft 58 which is integrally formed on the gate fitting 20, secured by a nut 60. As a result, the door fitting 20 is rotatable relative to the thrust cylinder 18 but axially fixed. The thrust cylinder 18 has radial through holes 62. A radial passage opening 64 also has the insert area 66 of the door knock 20 used here correspondingly. The radial through-opening 64 has a larger diameter than the radial through-holes 62.

The lock bolt 36 is inserted through the radial through holes 62 and the radial through hole 64. The locking bolt 36 has at its upper end a gripping area in the form of a pull ring 68, a flange-like stopper portion 70, a shaft portion 72 which is inserted with play in the radial passage opening 64, a latching or locking device, here in the form of a spring-loaded ball 76th is formed, and a through hole 78 at the free end for a padlock (not shown).

• Im Normalbetrieb ist der Torbeschlag 20 an den Torflügel angeschlossen. Die Befestgungseinrichtung 26 ist beispielsweise an einem Pfosten oder einer Bodenplatte angeschlossen. Bei Antrieb des Getriebemotors 30 dreht sich die Gewindespindel 38. Der Schubzylinder 18 ist über den Verriegelungsbolzen 36 drehfest mit dem Torbeschlag 20 verbunden. Dieser stützt sich drehfest an dem Torflügel ab. Bei Drehung der Gewindespindel 38 kann sich deswegen der Schubzylinder 18 nicht drehen, er wird dadurch entlang des Trapezgewindes in axialer Richtung durch die Gewindespindel 38 verschoben.

The function of the illustrated swing gate operator 10 is as follows:

• In normal operation, the gate fitting 20 is connected to the gate. The fastening device 26 is connected, for example, to a post or a bottom plate. When driving the geared motor 30, the threaded spindle 38 rotates. The thrust cylinder 18 is rotatably connected via the locking pin 36 with the door fitting 20. This is supported against rotation of the gate. Upon rotation of the threaded spindle 38, therefore, the thrust cylinder 18 can not rotate, it is thereby displaced along the trapezoidal thread in the axial direction by the threaded spindle 38.

The geared motor 30 may be self-locking. In case of power failure then no movement of the gate is possible. Here you can press the emergency release 34 by loosening any existing padlock and pulling on the pull ring 68. The locking pin 36 is thus pulled out of the radial through holes 60 and the radial through hole 64. This can be done very easily because of the game to the through hole 64. With the locking bolt 36 removed, the push cylinder 18 is rotatable relative to the gate fitting 20, which remains attached to the door leaf, via the second deep groove ball bearing 54. The thrust cylinder 18 is also rotatable via the guide bushing 52 and the threaded sleeve 42 within the guide tube 32. If you then manually move the gate, the thrust cylinder 18 is supported on the thread of the threaded spindle 38 and starts to rotate and can be so axially shift. This allows you to move the gate manually. The gate can then be locked in any position in which the radial through holes 62 are arranged concentrically to the radial passage opening 64 by inserting the locking bolt 36 and closing by means of the padlock. So you need to provide even in case of power failure, no additional lock. If the swing gate operator is ready for use again, the locking bolt 36 is also inserted again.

Claims (5)

1. Revolving door drive (10), for driving a door wing provided at the driveway of an estate and pivotable about a vertical axis, comprising
   a push-pull unit (12) having as a first element a wing connection part (14) to be pivotably connected to the said door wing, and as a second element a supporting unit (16) to be pivotably mounted to a first stationary bearing and including a motor driving unit (30) for driving a linear translational relative movement of said two elements (14, 16), and
   an emergency release mechanism (34) for decoupling the wing connection part (14) from said motor driving unit (30),
   wherein said emergency release mechanism (34) is disposed on the wing connection part (14),
   wherein the motor driving unit (30) includes a threaded shaft (38) rotationally driven by a motor, wherein said wing connection part (14) includes a driver (18) guided for linear movement on a guiding device (32) of said supporting unit (16) and threadingly engaged with said threaded shaft (38), and wherein said wing connection part (14) includes a door fitting (20) for connection to said door wing,
   characterized in
   that said door fitting (20) is connected to the driver (18) for rotation relative to said driver (18) and
   that said emergency release mechanism (34) includes a releasable latch (36) for blocking said relative movement and
   that said latch (36) is configured in a lockable manner so that only authorized persons are granted access to the manual movability after the actuation of the emergency release mechanism, and that said emergency release mechanism (34) comprises a removable bolt (36) on said wing connection part (14) and
   that said wing connection part (14) includes said driver (18) which is driven for displacement by said motor driving unit (30), and said door fitting (20) which is pivotably mounted to said door wing and
   that said driver (18) and said door fitting (20) are connected to each other via said bolt (36) and
   that said driver (18) and said door fitting (20) have radial passages (62, 64) designed and arranged in a manner fitting each other and penetrated by said bolt with play and
   that said bolt (36) has a grip portion, especially a pull ring (68), for manually gripping said bolt for removal, a stopper (70) on said one end, and a passage (78) for a padlock for preventing unauthorized removal, or that said bolt (36) is part of a padlock or a similar removable locking device.
2. Revolving door drive according to claim 1,
   characterized in that
   said driver (18) is mounted for a linear movement and rotation relative to the motor driving unit (30).
3. Revolving door drive according to one of the claims 1 or 2,
   characterized in that said guiding device includes a guiding cylinder (32) fixedly connected to the motor driving unit (32) and
   that the driver includes a push cylinder (18) which is rotatable relative to said guiding cylinder.
4. Use of a revolving door drive according to one of the preceding claims, for opening and closing a door wing provided at the driveway of an estate and pivotable about a vertical axis.
5. A door with a door wing that is pivotable about a vertical axis, and with a revolving door drive according to one of the preceding claims.

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