EP1223290B2 - Revolving door arrangement - Google Patents

Description

The invention relates to a revolving door system with a between the cylinder-segment boundary walls, which have on opposite sides each have a passage area, and about a vertical door axis of rotation, preferably by means of a drive rotatable multi-leaf revolving door whose wings come close to close to the boundary walls and of which at least one wing about a vertical fulcrum axis from a basic position, in which the wings extend forwards at preferably equal angular intervals from the door axis of rotation, in a substantially open position which allows the passage of persons substantially unobstructed.

Such a revolving door system is from the EP 0 606 193 A1 known. In this revolving door system, the wings of a multi-leaf revolving door, which in turn is rotatably driven about an axis by a drive motor to release in a wide passage in the range of up to cylinder segment-shaped boundary walls extending wing ends arranged vertical pivot axes from a basic position that allows a controlled passage of people Opening positions and from the latter back to their bottom zurückverschwenkbar positions. The pivoting of the wings in their open positions and back can be done by hand or by means of the blades associated drives motor. The revolving door drive is controlled so that, for example, in the case of four-leaf revolving doors, the wings stand with their ends remote from the revolving door axis at standstill of the revolving door in each case in the vicinity of the passage areas which penetrate the boundary walls.

Such revolving doors with hinged from their basic positions in opening positions wings allow the opening wide passages. This is useful for large numbers of visitors or for pushing through large items. But such broad passageways are especially important as escape routes.

In a pivoting of the wings in a substantially unimpeded person passage enabling opening position, however, it may be at a deliberate or unintentional turning back or further rotation of the revolving door to trapping in the transit area people, especially children, between the free end of a wing and the come opposite boundary wall. Because of the design-related toggle effect very significant injuries may occur:

A revolving door system with the features of the preamble of claim 1 is known from US 2,523,980 A known. There, the door leaves at their upper and lower ends with the door axis of rotation completely encompassing hinge plates provided over which the door wings about their coaxial with the door axis of rotation arranged vertical wing axis about the rotationally fixed anchored in the ground door axis are. The horizontally outwardly extending from the door axis of rotation hinge plates are provided with slot-like slots in which the door wings are pivotable about vertical bolts about a vertical and parallel to the door axis of rotation axis of rotation. This construction is limited to the use of comparatively small and light door leaves and is complex.

The DE-OS 1 685 854 discloses a mehrflügelige revolving door, in which two pairs of door leaves are hinged to a center column made of plastic, so that the door wings can be beaten in pairs against each other. In this position, there is still a considerable risk of injury, especially in the case of an increased number of persons and in the event of a curse.

From the DE 90 15 868 U1 is a security revolving door has become known in which the door is rotatably connected to the door pillar.

The EP 0 354 439 B1 discloses a corrosion protected hinge for sashes and the like. The hinge includes two threaded bolts for attachment to a window frame. These threaded bolts each have fork-like ends which are completely surrounded by a corrosion-resistant thick layer of solid plastic. This construction is unsuitable for the storage of wings of hinged door systems.

Accordingly, it is an object of the invention to provide a revolving door system, which allows for safe passage and escape route options and a minimum risk of injury over a long time safe operation and favorable assembly and disassembly ratios and in particular For large and / or heavy wings, even with not exactly aligned wing bearing parts, always a large-scale and uniform recording of the weight of the wing caused vertical forces in conjunction with a particularly stable storage possible.

This object is solved by the features of claim 1.

Due to the comparatively simple appearing measure that the at least one hinged wing separately, preferably independently of the other wings, about the coaxial with the door axis of rotation arranged vertical wing axis is pivoted, favorable passage and escape route options are created, with a risk of injury due to the Folding the wing always consistently small formable distance between the free, the boundary walls facing front end and the respective boundary wall excluded or minimal.

Characterized in that the wing is mounted on a door axis of rotation containing and coaxial with this arranged bearing shaft, a long-term stable mounting of the wing and easy assembly and disassembly ratios are possible.

Characterized in that the wing is mounted such that its weight is taken up substantially by a arranged in the region of the lower end of the bearing shaft bearing, unfavorable tilting ratios can be avoided and it can achieve a stable storage.

Characterized in that the hinged wing is connected to at least one articulated on the bearing shaft bearing element, the a shaft bearing part associated with the bearing shaft and a wing bearing part associated with the wing, wherein the shaft bearing part comprises the bearing shaft at least partially and has mutually pioneering parallel bearing surfaces for receiving vertical forces, wherein the wing bearing part is pivotable about a parallel to the bearing surfaces arranged bearing element axis pivotally mounted on the shaft bearing part, arise in particular for large and / or heavy wings great advantages, since even with not exactly aligned wing bearing parts caused by the weight of the heavy wing vertical forces can be absorbed over a large area and evenly from the bearing surfaces of the shaft bearing parts, preferably with the interposition of suitable thrust bearing each other support. It is understood that in a number of n hinged wings at least n minus 1 shaft bearing parts are provided with the groundbreaking parallel bearing surfaces, while the uppermost shaft bearing part only with a lower bearing surface directly or with the interposition of a suitable seal ring on the underneath located upper bearing surface of the next shaft bearing part can support.

Characterized in that the wing bearing part designed as a bearing fork and the shaft bearing part as a fork seat, wherein the bearing fork comprises the fork with its fork fork legs, which are hinged to the bearing element axis pivotally mounted on the fork, is a particularly stable storage and, for example, in conjunction with the measures described above easy assembly and disassembly possible.

It is expedient if the wing bearing part and the shaft bearing part are detachably connected to one another easy to assemble and disassemble the wings on the bearing shaft. For a detachable connection, for example, two provided with an internal thread fitting bolts which can be suitably used in this appropriately designed mounting holes and can be removed by means of a suitable auxiliary device again from the Paßbohrungen.

According to a further preferred embodiment, the vertical bearing shaft is mounted in the region of its lower end to a bearing such that it can perform tilting wobble movements relative to a pivot axis containing a vertical axis about this pivot point. In this way, can advantageously create a degree of freedom in the vertical direction, so that no difficulties caused by different thermal expansion difficulties, such as a stiff or jammed revolving door occur through this oscillating storage even at changing temperatures.

Appropriately, the bearing shaft in the region of its lower end and / or the wings are mounted on a spherical roller bearings. According to a preferred alternative embodiment variant, the bearing for the bearing shaft and / or the bearing for the wings on a dome-shaped bearing head, which is mounted in a bearing cup. As a result, a particularly robust and cost-effective as well as a long life exhibiting bearing can be created, with a simple assembly and disassembly are possible. According to an expedient development of the bearing head is designed with a spherical cap and at least partially covered by the bearing cup, which has conically tapered to a central axis wall parts on which the spherical cap is supported.

It is also expedient if the bearing cup is preferably received on or in a tapered roller bearing.

According to a particularly preferred embodiment, the wings and the bearing shaft are mounted on a common bearing, so that the weight of the wings and the bearing shaft and the drive and the brake unit is received by a single bearing.

According to an advantageous embodiment, the bearing shaft is releasably connected in the region of its upper end with a preferably designed as a hollow shaft gear output shaft of a geared motor and arranged coaxially thereto. This allows a low-cost assembly and disassembly and means, moreover, in comparison to the prior art complicated constructions that require a separate storage of the bearing shaft due to an offset relative to the door axis arranged output shaft of the example designed with a belt or chain drive drive , corresponding benefits.

Advantageously, the bearing shaft is preferably releasably mounted in the region of its upper end to a support bearing, which is supported on at least two, preferably three torque arms on a body of the revolving door system, wherein each torque arm with adjusting means for adjusting the position of the support bearing and thus the bearing shaft relative to the Body is provided. In this way, the revolving door can be precisely adjusted to ensure a constant distance between the wings and the boundary walls.

For this purpose, the rotary element supports advantageously each have a first adjusting element provided with a counter-rotating thread, which interacts with a matching second adjusting element such that upon rotation of the first adjusting element provided with the counter-rotating thread, a transverse displacement of the first adjusting element relative to the second Adjusting element is effected. This facilitates the adjustment and allows a long-term stable position of the bearing shaft and the door leaf.

Advantageously, the wings are pivotable about the door axis of rotation by means of an output shaft having a drive, wherein the output shaft can be coupled with a cam, which is engageable with the wings in operative connection. It is useful if the cam is fixed, preferably releasably connected to the output shaft of the drive designed as a geared motor.

According to a particularly advantageous development, the cam plate is provided with at least one first detent element part, wherein the number of first detent element parts corresponds to the number of hinged in an open position wings, and wherein in the case of several first detent elements they are arranged over the circumference of the cam at preferably equal angular intervals , And that each hinged wing is connected in the region of its upper end with a second latching element part, which is engageable with the first latching element part in operative connection, that communicates with driven cam active connection between the drive and the wing and that preferably at a standstill of the cam each hinged wing is pivotable under the action of a predeterminable force about the wing axis in its open position. In another advantageous representation of an operatively connected to the door axis of rotation cam is provided, which is one of Number of wings corresponding number of locking points and between the latter has radially projecting curve sections and a radially elastically pressed against the cam follower.

In this way, no rigid, but a flexible drive connection is provided to the wings, so that the pulse forces occurring during the braking of the wings are reduced. If a driven wing optionally hits a person, the impact energy can be effectively reduced at a given rotational speed of the revolving door or can be realized at a maximum permissible impact force a faster rotational speed of the revolving door. When stationary, blocked cam can be manually folded even in the de-energized state of the wing either by a certain, momentarily increased force, so as to make a passageway free or can be offset with uniform force, the entire revolving door in rotation, so that in this case a person still in the revolving door system can leave the revolving door system without any problems and consequently can also be operated as a manual revolving door in the event of a power failure.

It is advantageous if the first detent element part with a U- or V-shaped, radially projecting guide flanks having recess and the second detent element part are designed with a radially engaging in the recess and resiliently resettable by the guide flanks pressure element, preferably its contact pressure is infinitely adjustable.

It is also expedient if the second latching element part is designed with a gas pressure spring, which has at its the recess of the first latching element part associated free end a cam roller formed guide roller which is guided along the guide flanks of the recesses and intermediate guide surfaces of the cam. This allows favorable pressing and guiding conditions and allows a finely metered adjustment of the pressing force and consequently the restoring force.

According to a further advantageous embodiment variant, a number of locking latches corresponding to the number of folding wings is provided, wherein each locking bolt is connected to the cam disc and can be brought into locking engagement with the respective wing such that a pivoting of the wing about its wing axis is limited to a predetermined angular range is, and the lock bar on the occurrence of a specific event, such as power failure or power cut, releases the wing, so that it is free to pivot about its wing axes. In this way, the door can be used for escape and rescue routes.

It is expedient if each hinged wing has a in the region of its upper end fixedly connected thereto bolt receptacle having a extending over a predetermined angle about the respective wing axis recess for receiving the locking bolt.

Finally, it is particularly advantageous if the locking bolt in a driving position, in which the drive of the wings via the mutually engaged locking element parts, is in a basic position relative to the mutually extending recess, from the two-sided pivoting of the wing order whose wing axis is possible by a certain pivot angle, wherein preferably the pivot angle is about plus / minus 10 degrees. In this way, the safety functions already described above can be advantageously fulfilled.

It is also advantageous if in the region of a closing edge of a extending over a circumferential angle around the door axis cylindrical boundary walls a locking bolt is provided which engages in the event of a particular event, such as power failure or power cut, in the orbit of the wing and that in this way the pivoting of the wings about their wing axes allows a coverage area corresponding to the circumferential angle of the associated boundary wall and these are prevented there from a Weiterverschwenkung.

According to a further advantageous embodiment, a preferably electromagnetic brake is coupled to the output shaft of the drive, which is formed with a preferably annular brake disc. The brake disc is expediently arranged concentrically to the door axis of rotation, wherein the disc plane is formed normal to the door axis of rotation. In this way, in contrast to the known from the prior art designs destruction or damage to the transmission and the shaft / hub connection can be effectively prevented. Furthermore, can be achieved with the brake shoes acting on the brake disc a particularly safe and fast deceleration and heavy door leaf.

It is also expedient if the or each wing is provided with at least one sensor for controlling the rotation of the wings about the door axis of rotation or the wing axis. As such sensors are particularly impact protection sensors in question, wherein a first casserole sensor may be provided in the form of a heel bar and wherein a second, optical, preferably IR sensor may be mounted in the region of the upper end of each wing, a visual control of the direction of rotation in front of the rotating door wing lying space allows.

If the sensor or the sensors is or are coupled to electrical lines, these electrical lines are expediently connected to the control device via a slip ring arrangement with slip rings arranged concentrically with respect to the door rotation axis or the wing axis. It is also useful if a first slip ring assembly at the upper end of the bearing shaft with a plurality of spaced apart in the direction of the door axis of rotation and arranged around the circumference of the door axis of rotation slip rings, preferably provided as an encapsulated slip ring box, and that arranged between the first slip ring assembly and the transmission output shaft second slip ring assembly having a plurality of concentrically spaced, in a normal to the door axis of rotation or the wing axis formed plane spaced from each other arranged slip rings, preferably designed as a slip ring disk assembly. In this way, the revolving door can be rotated arbitrarily, without the risk of twisted or sheared cables. The above-described slip ring assemblies mean an advantageous space savings and allow easy assembly and disassembly.

Very particularly advantageous assembly or disassembly ratios can also be achieved if the drive, the brake and preferably the cam form a common, fixed to the bearing shaft, but releasably connectable unit. This unit can be preassembled in a favorable manner at the manufacturer and can then be placed on the actual site in a simple manner on the body of the revolving door system and connected there with the other parts of the revolving door system.

According to a particularly advantageous embodiment variant of the invention, each individual foldable wing is pivotable separately, preferably independently of the other wings, about a vertical wing axis arranged coaxially with the axis of rotation of the door.

The above measures contribute both individually and in combination with each other, especially in hinged door systems with large and / or heavy wings to convenient access and escape route options with minimal risk of injury and long-term safe operation and favorable assembly and disassembly.

Further features, advantages and aspects of the invention are the following, with reference to the figures negotiated descriptive part removed, in which a preferred embodiment of the invention will be described in more detail.

Fig. 1

einen Vertikalschnitt durch die Drehtüranlage mit in ihrer Grundstellung stehenden Türflügeln bei einem etwa in der Ebene von zwei miteinander fluchtenden Flügeln verlaufenden Schnitt;

Fig. 2

eine Draufsicht auf den Korpus der hier mit vier Türflügeln gestalteten Drehtüranlage;

Fig. 3

einen stark vergrößerten Vertikalschnitt durch den unteren Lagerbereich der Lagerwelle und der Türflügel, mit einem Lager für die Lagerwelle und die Türflügel gemäß einer ersten Ausführungsvariante;

Fig. 4

einen stark vergrößerten Vertikalschnitt durch den unteren Lagerbereich der Lagerwelle und der Türflügel mit einem Lager für die Lagerwelle und die Türflügel gemäß einem zweiten bevorzugten Ausführungsbeispiel;

Fig. 5

einen Querschnitt entlang der Schnittlinie 5-5 gemäß Fig. 6 durch den als Lagergabel gestalteten Flügellagerteil in einer die Lagerelementachse enthaltenden Ebene;

Fig. 6

eine Rückansicht der Lagergabel;

Fig. 7

eine Draufsicht auf den als Gabelaufnahme gestalteten Wellenlagerteil in einer die Lagerelementachse enthaltenden Ebene;

Fig. 8

einen Querschnitt entlang der Schnittlinie 8-8 durch die Gabelaufnahme in einer die Lagerelementachse enthaltenden Ebene;

Fig. 9

eine Draufsicht auf das obere Stirnende eines Türflügels mit der an diesem befestigten Gasdruckfeder, mit der an ihrem freien Ende vorgesehenen Führungsrolle und mit dem eine Ausnehmung zur Aufnahme des Sperriegels aufweisenden Riegelblech sowie mit dem oberen, mit einer Lagergabel und einer Gabelaufnahme gestalteten Lagerelement für den Türflügel;

Fig. 10

einen Vertikalschnitt im Bereich der am oberen Ende eines Flügels befestigten einstellbaren Gasdruckfeder und einer den Sperriegel enthaltenden Sperriegel-Vorrichtung, wobei der Sperriegel in seiner in die.Ausnehmung des Riegelblechs eingreifenden Fahr- und Grundstellung;

Fig. 11

einen Vertikalschnitt im Bereich des oberen Endes der Lagerwelle, mit Darstellung der oberen Flügellager und der Schleifringanordnungen;

Fig. 12

eine Draufsicht auf die mit drei einstellbaren Drehmomentstützen gestaltete Antriebsaufhängung mit Getriebemotor, Bremsscheibe und Kurvenscheibe;

Fig. 13

eine schematische Darstellung einer Draufsicht auf die Drehtüranlage mit in den Bereich einer der Begrenzungswände abgeklappten Flügeln, wobei der in Drehrichtung vorderste Türflügel an einem Feststellriegel anschlägt, der im Bereich der in Drehrichtung vorderen Schließkante der Begrenzungswand eingerückt ist.

Show it:

Fig. 1

a vertical section through the revolving door system with standing in their basic position door wings at a running approximately in the plane of two aligned wings section;

Fig. 2

a plan view of the body of the designed here with four door hinged door system;

Fig. 3

a greatly enlarged vertical section through the lower bearing portion of the bearing shaft and the door, with a bearing for the bearing shaft and the door leaf according to a first embodiment;

Fig. 4

a greatly enlarged vertical section through the lower bearing portion of the bearing shaft and the door leaf with a bearing for the bearing shaft and the door leaf according to a second preferred embodiment;

Fig. 5

a cross section along the section line 5-5 of Figure 6 through the designed as a bearing fork wing bearing part in a bearing element axis containing level.

Fig. 6

a rear view of the storage fork;

Fig. 7

a plan view of the designed as a fork receiving shaft bearing part in a plane containing the bearing element axis;

Fig. 8

a cross section along the section line 8-8 through the fork receptacle in a plane containing the bearing element axis;

Fig. 9

a plan view of the upper end face of a door leaf with the attached thereto gas spring, with the guide roller provided at its free end and with a recess for receiving the locking bolt having latch plate and with the upper, designed with a bearing fork and a fork mount bearing element for the door leaf ;

Fig. 10

a vertical section in the region of the adjustable gas spring fixed to the upper end of a wing and a lock bolt device containing the locking bolt, wherein the locking bolt in its driving and home position engaging in the.Ausnehmung the locking plate;

Fig. 11

a vertical section in the region of the upper end of the bearing shaft, showing the upper wing bearings and the slip ring assemblies;

Fig. 12

a plan view of the designed with three adjustable torque arms drive suspension with geared motor, brake disc and cam;

Fig. 13

a schematic representation of a plan view of the revolving door system with folded in the region of one of the boundary walls wings, wherein the front in the direction of rotation Door leaf abuts against a locking bolt, which is engaged in the area of the front in the direction of rotation closing edge of the boundary wall.

The revolving door system 20 shown in FIGS. 1, 2, 12 and 13 comprises the frame-like body 95, which is designed with the two lateral, cylinder-segment-shaped boundary walls 21, 22. The boundary walls 21, 22 each have a passage area 23, 24 on opposite sides. The multi-leaf revolving door 27 rotatable about the vertical door rotation axis 25 by means of the drive 26 is accommodated in the body 95 of the revolving door system 20. The revolving door 27 has in the exemplary embodiment, the four wings 31, 32, 33, 34, which are hinged to the bearing axis of rotation 25 containing the bearing shaft 40. It is understood that the revolving door system 20 may also be provided with two, three or four to eight or more wings. In the basic position 36 shown in FIGS. 1 and 2, the wings 31, 32, 33, 34 extend from the axis of rotation 25 of the door at the same angular intervals (here 90 degrees) between the individual wings 31, 32, 33, 34. In this basic position 36, a normal operation of the revolving door system 20 is possible as a revolving door for separating and / or counting persons, thus for a controlled passage of persons.

In order to allow a substantially unimpeded passage of people to transport bulky goods and / or larger inventories through the revolving door system 20, the wings 31, 32, 33, 34 can be pivoted about its vertical wing axis 35 from the basic position 36 in an open position 37 (Fig 13). Characterized in that the wing axles 35 of the wings 31, 32, 33, 34 are formed coaxially to the door axis of rotation 25, so coincide with this, remains even when folding the wings 31, 32, 33, 34 in a substantially unobstructed passageway permitting opening position 37th the distance between the vertical end edges of the wings 31, 32, 33, 34 and the vertical boundary walls 21, 22 always the same size. As a result, when folding one, several or each of the wings 31, 32, 33, 34 in its or its opening position, a risk of injury can be excluded or minimized.

As can be seen from Figs. 3, 4 and 11, the bearing shaft 40 is rotatably supported. In the region of its lower end 63, the bearing shaft 40 is supported on the bearing 41 which is arranged coaxially with respect to the axis of rotation of the door 25, the so-called ground bearing. In this case, the bearing 41 may be designed according to a first alternative embodiment with a spherical roller bearing 64, as shown in Fig. 3. In this case, the lower end 63 of the bearing shaft 40 is received in a sleeve-like or cross-sectional bearing sleeve 88 whose normal to the door axis of rotation 25 trained annular flange is supported on a first ring designed as a spherical roller bearing spherical roller bearing 64, which in turn on the spherically shaped Pendulum rollers supported on a second bearing ring, which is received in a bearing receptacle. The bearing sleeve 88 has from the spherical roller bearing 64 groundbreaking, normal to the door axis of rotation 25 arranged bearing surfaces on which a designed as an axial slide ring slide ring 84 is mounted. On the slide ring 84, the lowest of four here for supporting and supporting the wings 31, 32, 33, 34 serving bearing member 45 is supported.

According to a second alternative, preferred embodiment, the bearing 41 is formed with a ball head formed as a bearing head 65 with a spherical cap 66. The bearing head 65 is received in a bearing cup 67 and is provided in the embodiment in one piece with a receiving sleeve 83 which serves to receive the lower end 63 of the bearing shaft 40. The receiving sleeve 83 is provided with an external thread on which is provided with a suitably shaped internal thread threaded sleeve 87 is screwed. This is designed with bearing points away from the bearing head 65 bearing surfaces on which the bearing sleeve 86 is received, which is designed with mutually pioneering parallel, normal to the door axis of rotation 25 formed bearing surfaces. On the bearing head 65 pioneering bearing surface, a sliding ring 84 is arranged, on which the lowest of the four bearing and supporting the wings 31, 32, 33, 34 serving bearing element 45 is supported.

The bearing head 65 comprises the spherical cap 66, which has arranged around the ball center 68 spherical surface parts. The ball center 68 coincides with the door pivot axis 25. The bearing cup 67 is designed as a receiving sleeve for the bearing head 65. For this purpose, the conically tapering in the direction of the vertical central axis 69 in a direction away from the bearing head 65 direction wall parts 70, 71 are provided which serve to support the spherical cap 66. In this way, the bearing shaft 40 is stably supported in an exact position. The bearing cup 67 is further formed with the wall parts 70, 71 in the direction of the central axis 69 extending wall parts, which allow a cylindrical recording of the bearing head 65 with little play. These wall parts are designed to over the ball center 68, so that the bearing head 65 is securely and stably supported in the bearing cup 67. The bearing cup 67 is supported on an inner ring of a tapered roller bearing 76, which in turn is supported on the tapered rollers on an outer ring, which in turn is received in a bearing receptacle.

In both embodiments of the bearing 61 described above, this serves both for supporting the wings 31, 32, 33, 34 and for supporting the bearing shaft 40, wherein both the weight of the wings 31, 32, 33, 34 and the weight of the bearing shaft 40th from the one common bearing 41 is received. In this case, the bearing shaft 40 is mounted at the lower end 63 to the bearing 41 such that it tilt-tumble movements relative to a pivot point containing vertical axis, here the central axis 69, to execute this fulcrum.

Each wing 31, 32, 33, 34 is provided with a lower bearing element 42, 43, 44, 45 and an upper bearing element 72, 73, 74, 75, each at one end fixed to the respective wings 31, 32, 33, 34 in Area whose the door axis of rotation 25 facing the front end is fixed and which are hinged on the other hand on the bearing shaft 40. Each bearing element 42, 43, 44, 45; 72, 73, 74, 75 is designed with the also designated as a shaft bearing part fork receptacle 46 and also referred to as a wing bearing part bearing fork 50 (Fig. 5 to 9). The bearing fork includes the steerer 60, which branches into the two fork legs 51 and 52. At their respective, pointing away from the steerer 60 ends the two aligned bores 58 and 58 are provided, which are designed concentrically to the bearing element axis 53. The attachment of the position fork on the wings 31, 32, 33, 34 takes place on the steerer 60 by means of the screws resulting from the figures. It is understood that any other attachment is possible.

Also referred to as a shaft bearing part fork receptacle 46 which is associated with the bearing shaft 40 is disc-shaped and has the two parallel bearing surfaces 47 and 48 which are arranged normal to the central axis of the bearing shaft 40 receiving cylinder bore 49. At least one of the bearing surfaces 47, 48, here the bearing surface 47 is slightly recessed relative to the surface of the fork seat and designed kreisringfömrig in this area. In the thus formed, a centering enabling recess groove each of the sliding ring (Fig. 3, Fig. 4) can be safely received. These Perma slip rings 84 serve to minimize wear and allow a defined torque. The fork receptacle 46 is formed with a in the plan view of FIG. 7 circular segment-shaped receiving part for receiving the fork legs 51 and 52 of the bearing fork 50. In the receiving part, the two aligned fitting holes 56 and 57 are provided, which are formed concentrically to the bearing element axis 53 which intersects the central axis. In this way, the fork legs 51, 52 of the bearing fork 50 can be pivoted on the fork receptacle 46 about the bearing element axis 53. For this purpose, for example, suitably designed fitting bolts 28 (FIGS. 3 and 11) can be inserted through the bores 58 or 59 in the fork legs 51 and 52 into the fitting bores 56 and 57, respectively, and fastened there. For the purpose of easy re-releasing the fitting bolt 28, these can be provided with an externally accessible internal thread. In this, designed with a suitable external thread auxiliary devices for re-releasing the fitting bolt 28 can be anchored.

As can be seen in particular from FIG. 3, all the lower bearing elements 42, 43, 44, 45 lie on the bearing 41, with respective intermediate slip rings 84. As can also be seen from FIG. 11, the upper bearing elements 72, 73, 74, 75 are each overlaid on top of each other with the interposition of a sliding ring 84, in order to avoid a static overdetermination. In contrast to the lower bearing elements 42, 43, 44, 45, however, the upper bearing elements 72, 73, 74, 75 are not supported in the vertical direction, but take only in their cylinder bore 49, the bearing shaft 40 with play on. In this way, the entire weight of the wings 31, 32, 33, 34 is received by the bearing 41. Due to the special construction of the bearing elements 42, 43, 44, 45; 72, 73, 74, 75 is ensured even with a slightly tilted in the vertical direction mounting the bearing elements to the respective wings 31, 32, 33, 34, that due to the possibility of pivoting the fork receptacle 46 relative to the bearing fork 50 about the bearing element axis 53, always in the entire area of the bearing surfaces 47, 48 a consistently large-scale recording of the weight of the wings 31, 32, 33, 34 caused vertical forces is ensured. Consequently, especially in the case of large and / or heavy wings 31, 32, 33, 34, as can occur with correspondingly large swing door installations 20, the occurrence of tilting forces, tension and, in particular, stress peaks in the bearing area of the wings 31, 32, 33, 34 avoided, so that over a long time safe operation of such a large revolving door systems is possible. Due to the special, shared construction of the bearing elements 42, 43, 44, 45; 72, 73, 74, 75 is a favorable pre-assembly of the entire revolving door system 20 including the inserted through the cylinder bore 49 of the shaft bearing part 46 bearing shaft 40 possible, and then in a simple manner, the wings 31, 32, 33, 34 with their storage forks 50 in the associated Fork 46, for example, by means of the fitting bolts 28, can be pivotally mounted. Using the fitting bolts 28 described above, easy disassembly of the wings 31, 32, 33, 34 is ensured. The bearing shaft 40 is detachably connected in the region of its upper end 61 to the transmission output shaft of the geared motor 85 designed here as a hollow shaft 80 and is arranged coaxially therewith. The geared motor is in turn attached to the body 95 of the revolving door system 20 on the transom 96 shown in FIG. 12. This transverse bar 96 is supported and supported by the approximately in a normal to the door axis of rotation 25 and hollow shaft 80 arranged torque arms 91, 92, 93. The torque arms 91, 92, 93 are in turn attached to the frame-like body 95 of the revolving door system 20. The torque arms 91, 92, 93 are pivotally connected at one end to the body 95 and connected at its other end hinged to the crossbar 96. The torque arms 91, 92, 93 are designed with the adjusting means 97, 98, 99, which here each having opposite threads Threaded sleeves and formed between them with the sleeves, also provided with opposing threads threaded rods. By a rotation of the threaded rods or the threaded sleeves of the respective distance between the ends of the torque arms 91, 92, 93 are varied. In this way, the position of the also referred to as a support bearing and acting as a transmission output shaft hollow shaft 80 and consequently the position of the bearing shaft 40 and respectively provided with the wings 31, 32, 33, 34 revolving door 27 relative to the body 95, in particular relative to the Borders 21 and 22 are set exactly. Consequently, the bearing shaft 41 is mounted at its lower end 63 on the bearing 41 and is mounted in the region of its upper end 61 on the transmission output shaft of the geared motor 85. In this case, a disk-shaped flange 62 is provided at the upper end 61 of the bearing shaft 40, which is welded to the bearing shaft 40 and in the embodiment via a releasable screw with an opposite disc-shaped flange 77 is also connected, which is welded to the output shaft 55. The output shaft 55 is provided at its, facing away from the upper end 61 of the bearing shaft 40 end, with a groove 82 and also the hollow shaft 80 is provided with a corresponding groove, so that the output shaft 55 via the matingly received in the grooves spring 81 with the hollow shaft 80 is rotatably and operatively connected.

Between the flanges 62 and 77, the concentric with the door axis of rotation 25 designed cam 100 is received, which is arranged in a direction normal to the door axis of rotation 25 extending plane. The cam disc 100 thus rotates, as does the bearing shaft 40, in a rotational drive of the hollow shaft 80 by the gear motor 85, preferably in the direction of rotation 135 apparent from FIG. As can be seen from FIG. 12, the cam disc 100 is along its circumference corresponding to the number of four wings 31, 32, 33, 34 with the U-.bzw also referred to as the first locking element part 101. Provided V-shaped recesses 105, which are arranged distributed at equal angular intervals of 90 degrees over the circumference of the cam 100 here. These recesses 105 serve as latching points for fixing the basic position 36, in which the wings 31, 32, 33, 34 forterstrecken of the door axis of rotation 25, here at equal angular intervals, in the direction of the boundary walls 21 and 22 respectively. In the basic position 36 engage in the recesses 105 which are also referred to as second locking element parts 102 guide rollers 110 which are arranged at the free end 108 of the gas spring 107 and fixed to the respective door leaf 31, 32, 33, 34, here on the upper horizontal Front edge are attached. By means of the adjustable gas pressure spring 107, the pressing force of the guide rollers 110, also referred to as the pressing element 106, can be adjusted on the outer circumference of the cam disks 100. The pressing force of the guide roller 110 on the cam 100 is adjusted such that for the normal case of the operation of the revolving door system as driven by the drive 26 revolving door, in a caused by the drive 26 rotation of the cam, the wings 31, 32, 33, 34 are rotated , So that consequently in this operating state, the guide rollers 110 are engaged with the detent-forming recesses 105 of the cam.

Locking devices 121 are fastened to the cam 100 as shown in FIG. 10, four locking devices being provided corresponding to the number of four wings 31, 32, 33, 34 provided in the exemplary embodiment. The locking bar device 121 serves to actuate a locking bar 120 which can be brought into engagement with the respective wing 31, 32, 33, 34. In the basic position 128 shown in FIG. 9, which corresponds to the driving position 127, the locking bar 120 engages in a recess 126 of a designed as a bolt receiving latch plate 125 which is attached to the upper end 38 of each wing 31, 32, 33, 34 and here on the frontal upper wing edge. The locking bar device 121 is electrically controllable such that in the current-carrying state or when applying an electrical voltage, the locking bolt 120 against the spring force of the locking bar 120 in a zero position pressing spring, in which the locking bar 120 is out of engagement with the locking plate 125 suppressed. When applied voltage of the locking bolt 120 is pressed in the embodiment electromagnetically in the engagement position shown in FIGS. 9 and 10, in which the locking bolt 120 engages in the recess 126 of the locking plate 125. The recess 126 is designed so tuned to the locking bar 120, that a pivoting of the respective wing 31, 32, 33, 34 allows about its wing axis 35 in a predetermined angular range, but at the same time limited to this predetermined angular range. In this way, it is in connection with the spring elastic by the gas pressure spring 107 to the cam 100 in the recesses 105 engaging guide roller 110 allows the wings 31, 32, 33, 34 in the predetermined angular range not rigid, but movable with the set spring elasticity with the cam 100 in engagement. In this way, the pulse forces occurring in a particularly rapid braking of the cam 100 are elastically absorbed and can be minimized thereby. In addition, it is achieved by the above measures that in case of a run-up of a wing 31, 32, 33, 34 on an obstacle, in particular on a person in the revolving door system 20 in the passage area of the wings 31, 32, 33, 34 restraining person, even at a failure corresponding protection sensors, an effective interception of the impact energy by elastic pivoting of the wings 31, 32, 33, 34 is made possible about its wing axis 35.

When the revolving door 27 of the revolving door system 20 in the driven by the drive 26 driving position 127 engages when applied to the locking bar device 121 voltage of the locking bolt 120 in the recess 126 of the locking plate 125. In this locking position is therefore due to the resulting from Fig. 9 design of the recess 126 and Sperriegels 125 of the pivoting range of the respective wing 31, 32, 33, 34 limited to the predetermined angular range. This means that in this operating state, the revolving door system 20 can be used in a conventional manner for the separation of persons and / or people counting as well as escape and emergency exit door. In the event of a certain event, in particular in the event of a power failure or power cut, the locking bolt 120 is pushed back by the return spring and thus disengages from the locking plate 125. In this case, the revolving door system 20 can continue to operate as a normal revolving door when the wings 31, 32, 33 , 34 are pivoted about the door axis of rotation 25 using a uniform thrust. Be it in emergencies or to create a substantially unimpeded passage of people for other reasons, such as the transport of larger or bulky goods, can be caused by brief application of an increased force caused by the gas spring 107 pressure resistance of the guide roller 110 in the region 105 of the recess 105 of Cams 100 are overcome and consequently when the cam 100 is stopped or blocked, the or several or all wings 31, 32, 33, 34 are pivoted about its or their wing axis 35 into an open position. A particularly useful and safe opening position 37, as shown in Fig. 13, be achieved in that all the wings 31, 32, 33, 34 are pivoted in the determined by the circumferential angle 133 Abdekkungsbereich 134 a lateral boundary wall 21 about its wing axis 35. In this way, no passageway somehow obstructing wing parts are present in the entire passage area 23, thereby conditional on an unobstructed, injury-free passage of persons and an unobstructed transport of goods is possible. For fixing the wings 31, 32, 33, 34 in the cover area 134 at least one actuatable locking bolt 132 is provided. This is provided in the region of a closing edge 131 of one of the boundary walls 21 and engages in the case of a specific event, such as power failure or power cut in the orbit of the wings 31 32, 33, 34, so that the wings 31, 32, 33, 34 at their Pivoting about its wing axis 35 are prevented by the locking bolt 132 at a Weiterverschwenken.

As can be seen from FIG. 12, a brake 140 arranged downstream of the geared motor 85 is provided with the door rotation axis 25 and here with the cam plate 100. This designed with the trained here as a circular ring brake disk 143, which is arranged in a direction normal to the door axis of rotation 25 extending plane and concentric with the door axis of rotation 25. The brake 140 further comprises the two brake units 141 and 142, which are designed here with the brake disc actuated electromagnetically brake shoes. The brake 140 allows a fast and safe braking of heavy blades 31, 32, 33, 34. Due to the gear motor 85 and the transmission downstream brake disc, the braking forces are not transferred to the transmission. As a result, a long-term safe operation of the entire revolving door system 20 is possible.

Each wing 31, 32, 33, 34 is provided with protection sensors. These cause when a revolving door 27, respectively the wings 31, 32, 33, 34, an obstacle located in the area of action of the wings 31, 32, 33, 34, for example a person, via a suitable control or regulating device Braking the wings 31, 32, 33, 34, so that a bumping is prevented or takes place in a manner which reduces damage or injury. For this purpose, as the first sensor is an optical sensor arranged in substantially over the entire door width of the wings 31, 32, 33, 34 in the region of its upper end 38, preferably at the upper end edge of the wings 31, 32, 33, 34 Form provided an IR sensor. Further, 39 so-called heel strips are provided on each wing 31, 32, 33, 34 in the region of their lower ends, which are designed as electrical contact strips and which also lead to a slowing down of the wings 31, 32, 33, 34 when driving on an obstacle , For reasons of robustness and safety, these electrical sensors are provided with electrical lines 150, which are coupled to the respective control and / or regulating device, which in turn are coupled to the drive 26. The electrical lines 150 of the sensor or the sensors are via a first slip ring assembly 151, which is provided at the upper end 61 of the bearing shaft 40 in the form of an encapsulated slip ring box 155 and a second slip ring assembly 152 which is designed as slip ring double disc, with in the Figures coupled control and / or control device not shown in detail. In this case, the first slip ring assembly 151 with a plurality of spaced apart in the direction of the door pivot axis 25 and around the circumference of the door pivot axis 25 arranged slip rings and the second slip ring assembly with a plurality of concentrically spaced, in a normal to the door axis of rotation 25 and the wing axis 35 formed plane spaced from each other arranged slip rings 153 designed. As a result, particularly favorable assembly or disassembly conditions are created and any rotation limitations or restrictions are excluded. In the embodiment shown in the figures, the drive including the geared motor 85, the brake 140 and the cam plate 100 are as a common, with the bearing shaft 40 fixed, but releasably connectable unit 160 is formed. Also, particularly advantageous assembly and disassembly conditions are achieved, in particular because said elements can be pre-assembled in the common unit 160 at the manufacturer and then connected to the respective installation site together with the other facilities of the revolving door system 20.

LIST OF REFERENCE NUMBERS

20

Revolving door installation

21

boundary wall

22

boundary wall

23

Passage area

24

Passage area

25

Door axis of rotation

26

drive

27

revolving door

28

fitting bolt

29

fitting bolt

31

wing

32

wing

33

wing

34

wing

35

Wing axis from 31 to 34

36

initial position

37

open position

38

Upper end of 31 to 34

39

Lower end of 31 to 34

40

bearing shaft

41

camp

42

bearing element

43

bearing element

44

bearing element

45

bearing element

46

Forked

47

storage area

48

storage area

49

bore

50

bearing fork

51

fork legs

52

fork legs

55

output shaft

56

fitting bore

57

Paßbohung

58

drilling

59

drilling

60

steerer

61

Upper end of 40

62

flange

63

Lower end of 40

64

Spherical roller bearings

65

bearing head

66

spherical cap

67

bearing cup

68

Ball center

69

central axis

70

wall part

71

wall part

72

bearing element

73

bearing element

74

bearing element

75

bearing element

76

Ball Roller Bearings

77

flange

80

hollow shaft

81

feather

82

groove

83

receiving sleeve

84

sliding ring

85

gearmotor

86

bearing sleeve

87

threaded sleeve

88

bearing sleeve

91

torque arm

92

torque arm

93

torque arm

95

corpus

96

Crossbeam.

97

adjusting

98

adjusting

99

adjusting

100

cam

101

first catch element part

102

second catch element part

105

recess

106

pressing element

107

Gas spring

108

Free end of 107

110

leadership

111

Leading edge of 105

112

Leading edge of 105

116

Guide surface of 100

120

safety catch

121

Sperriegelvorrichtung

125

staple plate

126

recess

127

Driving posture position

128

initial position

131

closing edge

132

Retaining tabs

133

circumferential angle

134

coverage area

135

direction of rotation

140

brake

141

brake unit

142

brake unit

143

brake disc

144

Disc level of 143

150

management

151

Slip ring assembly

152

Slip ring assembly

153

slip ring

155

Slip ring box

156

Slip ring disc

160

unit

Claims (28)

1. Revolving door installation with a multi-leaf revolving door (27) which is received between boundary walls (21, 22), which are of cylindrical segment shape and which have a respective passage region (23, 24) at each of mutually opposite sides, and which is rotatable about a vertical door rotational axis (25) preferably by means of a drive (26), the leaves (31, 32, 33, 34) of the revolving door reaching to the vicinity of the boundary walls (21, 22) and at least one leaf (31, 32, 33, 34) of the revolving door being separately pivotable about a vertical leaf axis (35) which is arranged coaxially with the door rotational axis (25), from a basic setting, in which the leaves (31, 32, 33, 34) extend from the door rotational axis (25) at preferably the same angular spacings, to an open position (37) enabling substantially unobstructed passage of persons, wherein the leaf (31, 32, 33, 34) is mounted on a mounting shaft (40) containing the door rotational axis (25) and arranged coaxially thereto and wherein the leaf (31, 32, 33, 34) is connected with at least one mounting element (42, 43, 44, 45) which can be pivotably connected with the mounting shaft (40) and which comprises a shaft mounting part (46) associated with the mounting shaft (40) and a leaf mounting part (50) associated with the leaf (31, 32, 33, 34), wherein the shaft mounting part (46) at least partly embraces the mounting shaft (40) and has parallel mounting surfaces (47, 48), which face away from one another, for accepting vertical forces, characterised in that the leaf (31, 32, 33, 34) is mounted in such a manner that its weight is received substantially by a bearing (41) arranged in the region of the lower end (63) of the mounting shaft (40) and wherein the leaf mounting part (50), which is formed as a bearing fork (50) with two fork limbs (51, 52), is pivotably connected with the shaft mounting part (46), which is formed as a fork receptacle (46), to be pivotable about a mounting element axis (53) arranged parallel to the mounting surfaces (47, 48), wherein the mounting fork (50) embraces the fork receptacle (46) by its two fork limbs (51, 52) which are pivotably connected with the fork receptacle (46) to be pivotable about the bearing element axis (53).
2. Revolving door installation according to claim 1, characterised in that the leaf mounting part (mounting fork (50)) and the shaft mounting part (fork receptacle (46)) are detachably connected together.
3. Revolving door installation according to claim 1 or 2, characterised in that the vertical mounting shaft (40) is mounted in the region of the lower end (63) thereof at a bearing (41) in such a manner that it can execute tipping/wobbling motions relative to a vertical axis (69), which contains a fulcrum, about this fulcrum.
4. Revolving door installation according to one of claims 1 to 3, characterised in that the mounting shaft (40) is mounted in the region of the lower end (63) thereof, and/or the leaf (31, 32, 33, 34), at a self-aligning roller bearing (64).
5. Revolving door installation according to one of claims 1 to 3, characterised in that the bearing (41) for the mounting shaft (40) and/or the bearing (41) for the leaves (31, 32, 33, 34) has a dome-shaped bearing head (65) which is mounted at a bearing socket (67).
6. Revolving door installation according to claim 5, characterised in that the bearing head (65) is formed with a ball dome (66) and is at least partly surrounded by the bearing socket (67), which has wall parts (70, 71), which conically taper towards a central axis (69) and on which the ball dome (67) is supported.
7. Revolving door installation according to one of claims 5 and 6, characterised in that the bearing socket (67) is preferably received at a conical roller bearing (76).
8. Revolving door installation according to one of claims 1 to 7, characterised in that the leaf (31, 32, 33, 34) and the mounting shaft (40) are mounted at a common bearing (41).
9. Revolving door installation according to one of claims 1 to 8, characterised in that the mounting shaft (40) is detachably connected in the region of the upper end (61) thereof with a gear drive output shaft, which is formed as a hollow shaft (80), of a geared motor (85) and is arranged coaxially thereto.
10. Revolving door installation according to one of claims 1 to 9, characterised in that the mounting shaft (40) is mounted in the region of the upper end (61) thereof at a support bearing (hollow shaft 80), which is supported by way of at least two, preferably three, torque supports (91, 92, 93) at a body (95) of the revolving door installation (20), wherein each torque support (91, 92, 93) is provided with adjusting means (97, 98, 99) for adjusting the position of the support bearing (hollow shaft 80) relative to the body (95).
11. Revolving door installation according to claim 10, characterised in that the torque supports (91, 92, 93) each comprise a first adjusting element which is provided with an oppositely directed thread and which co-operates with a second adjusting element, which is provided with a thread matched thereto, in such a manner that on rotation of the first adjusting element provided with the oppositely directed thread a transverse displacement of the first adjusting element relative to the second adjusting element is caused.
12. Revolving door installation according to one of claims 1 to 11, characterised in that the leaves (31, 32, 33, 34) are pivotable about the door rotational axis (25) by means of the drive (26) having a drive output shaft (hollow shaft 80), wherein the drive output shaft (hollows shaft 80) can be coupled with a cam disc (100) which can be brought together with the leaves (31, 32, 33, 34) into operative connection.
13. Revolving door installation according to claim 12, characterised in that the cam disc is fixedly, preferably detachably, connected with the drive output shaft (hollow shaft 80) of the drive (26) designed as a geared motor (85).
14. Revolving door installation according to one of claims 12 and 13, characterised in that the cam disc (100) is provided with at least one first detent element part (101), wherein the number of first detent element parts (101) corresponds with the number of leaves (31, 32, 33, 34), which can be unfolded into an open position, and wherein in the case of several first detent element parts (101) these are arranged to be spaced apart, preferably at the same angular spacings, over the circumference of the cam disc (100), and that each leaf (31, 32, 33, 34) able to be unfolded is connected in the region of the upper end (38) thereof with a second detent element part (102) which can be brought into operative connection with the first detent element part (101) in such a manner that when the cam disc (100) is driven an operative connection between the drive (26) and the leaves (31, 32, 33, 34) is produced and that preferably at standstill of the cam disc (100) each leaf (31, 32, 33, 34) able to be folded out is pivotable about the leaf axis (35) into its open position (37) under the action of a predetermined force.
15. Revolving door installation according to claim 14, characterised in that the first detent element part (101) is formed with a U-shaped or V-shaped recess (126) having radially projecting guide flanks (111, 112) and that the second detent element part (102) is formed with a presser element (106) radially engaging in the recess (126) and resiliently resettable by the guide flanks (111, 112), wherein preferably the pressing force of the presser element is settable.
16. Revolving door installation according to one of claims 14 and 15, characterised in that the second detent element part (102) is formed with a gas pressure spring (107) which has at its free end (108) associated with the recess (126) of the first detent element (101) a guide roller (110) which can be guided along the guide flanks (111, 112) of the recesses (126) and intermediately disposed guide surfaces (116) of the cam disc (100).
17. Revolving door installation according to one of claims 12 to 16, characterised in that a number of safety catches (120) corresponding with the number of leaves (31, 32, 33, 34) able to be folded out is provided, wherein each safety catch is connected with the cam disc (100) and can be brought into locking engagement with the respective leaf (31, 32, 33, 34) in such a manner that a pivotation of the leaf (31, 32, 33, 34) about its leaf axis (35) is limited to a predetermined angular range and wherein the safety catch (120) on occurrence of a specific event, such as current failure or switching-off of current, releases the leaf (31, 32, 33, 34) so that this is freely pivotable about its leaf axis (35).
18. Revolving door installation according to claim 17, characterised in that each leaf (31, 32, 33, 34) able to be folded out has a locking catch receptacle (lock plate 125), which is fixably connected therewith in the region of its upper end (38) and which has a recess (126), which extends over a predetermined angle about the respective leaf axis (35), for reception of the safety catch (120).
19. Revolving door installation according to one of claims 17 and 18, characterised in that in a travel position setting (127) the safety catch (120) is disposed in a basic setting (128) relative to the recess (126) extending at both sides, from which a pivotation of the leaf (31, 32, 33, 34) to both sides about the leaf axis (35) is possible through a defined pivot angle.
20. Revolving door installation according to claim 19, characterised in that the pivot angle amounts to approximately plus/minus 10 degrees.
21. Revolving door installation according to one of claims 1 to 20, characterised in that provided in the region of a closing edge (131) of one of the cylindrical boundary walls (21, 22) extending over a circumferential angle (133) about the door rotational axis (25) is a fixing lock (132) which in the case of a specific event, such as current failure or switching-off of current, engages in the rotational movement path of the leaves (31, 32, 33, 34) and that in this manner pivotation of the leaves (31, 32, 33, 34) about the leaf axis (35) thereof is made possible until in a region (134) of congruency corresponding with the circumferential angle (133) of the associated boundary wall (21, 22) and these are prevented there against further pivotation.
22. Revolving door installation according to one of claims 12 to 21, characterised in that a brake (140), which is preferably electromagnetic, can be coupled with the drive output shaft (hollow shaft 80) of the drive (26) and is constructed with a preferably annular brake disc (143).
23. Revolving door installation according to claim 22, characterised in that the brake disc (143) is arranged concentrically with the door rotational axis (25) and that the disc plane (144) is formed to be normal to the door rotational axis (25).
24. Revolving door installation according to one of claims 1 to 23, characterised in that the or each leaf (31, 32, 33, 34) is provided with at least one sensor for controlling or regulating rotation of the leaves (31, 32, 33, 34) about the door rotational axis (25) or the leaf axis (35).
25. Revolving door installation according to claim 24, characterised in that the sensor or the sensors is or are coupled with electrical lines (150) which are connected with the control or regulating equipment by way of a wiper ring arrangement (151, 152) with wiper rings (153) arranged concentrically with the door rotational axis (25) or the leaf axis (35).
26. Revolving door installation according to claim 25, characterised in that a first wiper ring arrangement (151) is provided, preferably as an encapsulated wiper ring case (155), at the upper end (61) of the mounting shaft (40) with several wiper rings spaced apart in the direction of the door rotational axis (25) and arranged around the circumference of the door rotational axis (25) and that a second wiper ring arrangement (152) arranged between the first wiper ring arrangement (151) and the gear drive output shaft (hollow shaft 80) is formed with several concentric spaced-apart wiper rings (153), preferably as a wiper ring disc arrangement (166), arranged at a spacing from one another in a plane formed to be normal to the door rotational axis (25) or the leaf axis (35).
27. Revolving door installation according to one of claims 12 to 26, characterised in that the drive (26), the brake (140) and preferably the cam disc (100) form a common unit (160) connectible fixedly, but detachably, with the mounting shaft (40).
28. Revolving door installation according to one of claims 1 to 27, characterised in that each of the leaves (31, 32, 33, 34) is separately pivotable about a vertical leaf axis (35) arranged coaxially to the door rotational axis (25).

Images