Classifications

• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
  • E06B3/90—Revolving doors; Cages or housings therefor
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
  • E05F15/00—Power-operated mechanisms for wings
  • E05F15/60—Power-operated mechanisms for wings using electrical actuators
  • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
  • E05F15/608—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for revolving wings
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
  • E05Y2900/00—Application of doors, windows, wings or fittings thereof
  • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
  • E05Y2900/13—Type of wing
  • E05Y2900/132—Doors

Definitions

• the present invention relates to a motor driven revolving door of the kind creating an air lock and comprising a rev- olving central body with door leaves, each of which from its mainly radial restposition may be swung in either direction round a vertical swinging axis placed at some radial distance from the axis of rotation of the central body.
• Revolving doors of this general type are also called round ⁇ about entrances. They are advantageous because like other re ⁇ volving doors, and in comparison with other entrance designs in an energy economical way, they can accommodate a very large through traffic in and out of the building of install- ation, without any draught being produced at the entrance. Contrary to other revolving doors, roundabout entrances by fire authorities classified as emergency exits.
• revolving doors comprise a central body sustained by a lower bearing supported on the entrance floor and an upper bearing installed in the ceiling structure of the entrance. These bearings usually support a shaft or an axle or an as such functioning lattice element designed with sufficient rigidity and strength to function as the supporting element of the entire revolving central body.
• One design of roundabout entrances is designed in such a way, that the revolving central body is sustained by a lower and an upper bearing both of which being supported by a central tower as disclosed in the Danish patent specification no. 145.747.
• the aim is achieved by a roundabout entrance if according to the invention it features a central body sustained by one bearing placed at the bottom just above or in level with the floor and designed for absorging radial as well as axial forces and also any tilting moment aiming at tilting the revolving axis away from its vertical position.
• the advantage of a roundabout entrance according to this design is, that one bearing alone can absorb all the forces actuating or otherwise influencing the revolving central body.
• the second bearing is thus superfluous and can be spared. It is thus possible to design the central body with ⁇ out considering a supporting central tower.
• the power plant and the the central body can thus be designed with the widest range of freedom without compromising any of the advantages known from the design based on the central tower.
• the power plant and preferably also its control member is/are positioned on the entrance floor and encircled on all sides by the walls of the revolving central body, a costly installation pit in the floor is not needed. Short and eff ⁇ icient and therefore accurately functioning mechanical trans ⁇ missions are allowed for.
• the bearing may be designed in such a way that the power plant and preferably also its control member are during service and repair inspection accessible via an opening of the vertical wall of the central body. Speedy and easy service and maintenance are thus achieved. If the bearing and the power plant are positioned on the floor, the bearing must have an inner diametre large enough to allow for the support of the powerplant to reach through the opening in the bearing.
• the roundabout entrance according to the invention may also be characteristic in the whole ceiling between the circle cylindrical walls being stationary, thus not comprising any revolving central part.
• the central body and its power plant are designwise entirely independent from the entrance ceiling it is found, that an economical advantage is gained, because the entire ceiling installation can be finished prior to the central body is being introduced into the entrance area. It is also found, that this design makes it easier to parallel the floor and the ceiling planes respectively.
• the above embodiment may be designed with sealing means, e.g. brush linings mounted on the upper side of the revolving central body, reaching towards the stationary ceiling.
• sealing means e.g. brush linings mounted on the upper side of the revolving central body, reaching towards the stationary ceiling.
• the roundabout entrance according to the invention may be designed with a central body comprising structural elements of glass panes or alternatively with a structural lattice with large flats mounted with transparent glass sheets.
• a central body comprising structural elements of glass panes or alternatively with a structural lattice with large flats mounted with transparent glass sheets.
• Such designs are made possible as the roundabout entrance according to the invent- ion does not require a strong axle or a supporting tower inside the revolving central body.
• electric wires for the connection of means mounted in the central body of the roundabout entrance may be provided, and a power source, or a sensor or an other element positioned in the stationary parts of the building be designed with a socket/- plug interface, preferably with the socket placed in or above the floor of the roundabout entrance within the area encircled by the revolving central body.
• the central body of the roundabout entrance may be fully assembled including safety devices and having all functions tested in the workshop prior to installation on the final installation site (after the fin ⁇ ishing of the floor as well as of the ceiling) can it be advantageous to design the central body with wheels, rollers or the like which are capable of supporting the central body lifted a short distance of preferable between 2 and 20 mm from the floor and which are, when the central body has been moved to its permanent position in the entrance, easily lifted or dismantled.
• This embodiment faciliates accurate and fast installation in the entrance opening and reduces the risk of damages caused during the installation.
• Fig. 1 is a schematic presentation of an embodiment of the roundabout entrance according to the invention as viewed from outside and partly in sectional view,
• fig. 2 is a schematical vertical sectional view of the revolving central body of the roundabout entrance according to fig. 1, excluding the door leaves,
• fig. 3 is a schematical perspective view of a lattice design of a central body for the roundabout entrance according to fig. 1, and
• fig. 4 is an alternative embodiment of a supporting bearing for a roundabout entrance according to the invent ⁇ ion.
• Fig. 1 displays a revolving door or roundabout entrance 1 according to the invention viewed from outside. Some parts have been cut away for illustrative reasons.
• the roundabout entrance 1 comprises two stationary, mainly circular cylindric concave walls 2 and 3 respectively, facing one another. Their axis of curvature in common is indicated by a dot and dash line and is congruent with the revolving axis 4 of a revolving central body 5.
• the revolving central body 5 establishes in a known way an air lock through which the traffic in and out of the building, in which the roundabout entrance 1 is installed, may pass.
• the revolving central body 5 comprises, as displayed in fig. 3, a rigid central element 6, on which four door leaves 7 are hinged. Each of these door leaves 7 can be swung in either direction from their respective normal radial position rel- ative to the central element 6 round a vertical swing axis.
• the sheet elements which cover the openings in the door frames 7 and between the upright posts in the central element 6 in order to establish the air lock, are left out.
• These sheet elements may in a known manner be transparent elements e.g. made of glass, and they may be flat as is fit for the door leaves 7 or cylindrically bent as often seen for the pannels for the openings in the central element 6.
• the revolving central body 5 (fig. 1) is functioning most efficiently as an air lock if those edges, which are during operation facing the stationary elements: floor, curved walls and ceiling respectively, are fitted with sealing elements e.g. brush linings.
• sealing elements e.g. brush linings.
• Such brush linings are known to have the capability of establishing an acceptable air seal between revolving and stationary parts of revolving doors and are commonly used.
• the central body has at its bottom a circular mounting ring 8 of L-shaped cross section and adapted to rigid engagement with a rotatable ring 9 (fig. 2) of a sustaining bearing also comprising a stationary bearing ring 10 (fig. 2).
• This stat ⁇ iffy ring 10 is fixed to the floor at the center of the revolving door and centered to have its axis of rotation to mesh with the axis of curvature 4.
• the bearing ring 10 is fixed to anchors in the floor, according to known technology comprising not illustrated fastening elements allowing for adjustments in all directions.
• the roundabout entrance 1 also comprises a power plant 11 illustrated in fig. 1 and of known design. Primarily for architectural reasons, the power plant 11 is shielded by means of an opaque, removable cover 12.
• the power plant 11 comprises an electric motor of the geared motor type supp ⁇ orted on the entrance floor within the area defined by the opening of the bearing ring 9. It furthermore comprises a driving roller the curved surface of which has a hard, res- ilient coating displaying relatively high coefficient of friction e.g. a hard and well wearing rubber.
• the driving roller is by pressure produced by a not shown spring abutting the internal, free cylindrical face of the bearing ring 9, driving the revolving central body 5 to rotate depending the control impacted on the motor of the power plant 11.
• Fig. 2 displays a sectional view of apreferred embodiment of the bearing sustaining the revolving central body according to the invention.
• the bearing illustrated is of known design and a commercially available ball bearing obtainable e.g. from the German firm of Hoesch Rothe Erde-Schmiedag AG. To be chosen is a bearing suitable for the size of roundabout entrance in question.
• Technical data sheets from the supplier holds data on dimensions, loading capacities ect. for standard bearings.
• a supporting bearing for the revolving central body 5 with a suitable outer diameter of the stationary bearing ring 10 of 73 cm and an inner diameter of the revolving bearing ring 9 of about 65 cm is suitable for a roundabout entrance in which the radius of curvature of the circular cylindrical concave walls 2, 3 is about 210 cm.
• a standard bearing with these dimensions exists thus allowing for the price and delivery advantages related to the purchase of a standard product.
• a bearing with the diametres mentioned above and with a height of construction of 10 cm is found suitable as it in its free opening allows sufficient room for the support for the power plant 11.
• the not illustrated control member for the electric motor of the power plant 11 is also placed inside the revolving central body 5. Due to this design the installation work to be carried out on the site of install ⁇ ation in connection with the installation of the roundabout entrance 1 according to the invention is reduced to a min ⁇ imum.
• a pipe embodied in the floor may in combination with this embodiment carry all required electrical wires for supplying electrical power and electrical signals to the power plant.
• the radially protruding door leaves 7 are of known design and are typically, as illustrated in fig. 1, made with brush linings along all four edges of each door leaf.
• a preferred embodiment of the central element 6 of the central body 5 has at its top and extending upwardly towards the ceiling of the roundabout entrance 1 and at its bottom and extending downwardly towards the floor of the roundabout entrance 1 brush linings 13 and 14 respect ⁇ ively, which are securing air lock tightness between the revolving central element 6 and the ceiling and floor respectively of the roundabout entrance 1 (fig. 1). It is obvious, that these brush linings are mounted adjacent to the upper and lower edges respectively of the not illustrated sheet elements of glass or the like.
• the sheet elements are preferably mounted in an upper and a lower profile functioning also as the support of the brush linings.
• An opening with a lockable door or shutter in at least one sheet element covering an opening defined by two adjoining corner posts in the central element 6 is faciliating service and maintenance work on the power plant and its control member.
• the bearing 100 comprises an inner stationary bearing ring 101 and an outer revolving bearing ring 102, each of which are made of a U-profile of steel cold-rolled to circular shape and welded.
• the inner surface of the bearing ring 102 is ground to sufficient acc ⁇ uracy to serve as a driving surface for a driving roller.
• the bearing ring 101 is fixed to the floor 103 by fittings all- owing for adjustment in all three directions.
• On the outside surface of the bearing ring 101 are two rows of guiding rollers, one above the other.
• rollers in each row are equidistantly placed along the circumference of the ring.
• the lower horisontal web 106 of the revolving bearing ring 102 is extending between the upper and lower guiding rollers 104, 105 keeping the bearing ring 102 positioned in axial direct ⁇ ion relative to the bearing ring 101.
• Equidistantly placed and fixed to the upper web 107 of the stationary bearing ring 101 are a number of vertical roller pins 108, each of which carries a horizontally rotatable roller 109.
• the roller pins of which are radially adjustable it is therefore possible to centre the ring 102 relative to ring 101. It is obvious that a bearing of this design is capable of absorbing any tilting moment aiming at tilting the two bearing rings relative to one another.
• one of the rollers 109 is designed with a coating providing a sufficient friction relative to the bearing ring 102, and it is powered via a suitable trans ⁇ mission by a power plant, e.g. an electric motor.
• a power plant e.g. an electric motor.

Landscapes

• Engineering & Computer Science (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Extensible Doors And Revolving Doors (AREA)
• Power-Operated Mechanisms For Wings (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=8115147

Family Applications (1)

Country Status (5)

Families Citing this family (11)

Family Cites Families (4)

• 1990
  • 1990-11-15 DK DK272990A patent/DK166513B1/da not_active IP Right Cessation
• 1991
  • 1991-10-28 JP JP4500015A patent/JPH06504823A/ja active Pending
  • 1991-10-28 AU AU89022/91A patent/AU8902291A/en not_active Abandoned
  • 1991-10-28 EP EP91920290A patent/EP0557380A1/en not_active Withdrawn
  • 1991-10-28 WO PCT/DK1991/000326 patent/WO1992008868A1/en not_active Application Discontinuation

Non-Patent Citations (1)

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