Movable or removable closures – Plural wings radiate from common pivot; i.e. – revolving
Reexamination Certificate
2000-04-11
2001-07-31
Redman, Jerry (Department: 3634)
Movable or removable closures
Plural wings radiate from common pivot; i.e., revolving
Reexamination Certificate
active
06266922
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention may relate to a revolving door with a ceiling drive beam that may be integrated into a ceiling structure, whereby the ceiling construction may consist of at least two detachable arcuate segments, which may be semicircular, that can be connected into a full circle and that may be bounded on the outside by a face band, which ceiling drive beam may be detachably connected to at least one segment.
2. Background Information
The use of ceiling constructions in two segments for revolving doors, which segments can be detachably connected with each other, may be particularly advantageous when the revolving door in question has a large diameter. On one hand, this arrangement may make possible essentially efficient pre-assembly in the manufacturing plant for test runs, and on the other hand, on account of the ability to separate the ceiling construction into individual parts, it may facilitate transport.
On a device of the type described above, the ceiling drive beam may form a component of one of the two segments and may be connected to the second segment only during final assembly on the construction site. The length of the ceiling drive beam may be relatively short, and the ceiling drive beam may be located between two ribs of the ceiling construction that border it on its ends, i.e., the dimensions of the ceiling drive beam may be determined so that the drive system required for the operation of the revolving door and the associated control and regulation components can be installed in the ceiling drive beam.
In at least one possible embodiment of the present invention, there may be more than two segments.
In another possible embodiment of the present invention, the segments may be circular but not semicircular.
In the event of a modification, i.e., in particular in the event of an enlargement of the diameter of the revolving door, the use of an appropriately adaptable ceiling drive beam may be necessary on account of the related modifications to the power of the drive system and to the control and regulation components.
OBJECT OF THE INVENTION
One possible object of the present invention, while retaining the advantages achieved with the device described in German Patent No. 43 44 204 C1, i.e., essentially advantageous pre-assembly and installation as well as essential ease of transport, may be to create a ceiling drive beam that may be integrated into the ceiling construction which forms a component that stiffens and braces the ceiling construction so that other elements of the ceiling construction, such as struts that support the face band, for example, can be made lighter in weight and manufactured more economically. A possible additional object of the present invention may be to integrate the ceiling drive beam into the ceiling construction so that, using essentially simple structural measures, it can be adapted to modified diameters of revolving doors. Another possible object of the present invention may be to make this adaptation so that the external dimensions of the areas that contain the drive system itself and the control and regulation components of the ceiling drive beam do not have to be modified.
SUMMARY OF THE INVENTION
One possible embodiment of the present invention preferably teaches that the ceiling drive beam is located between segments. The length of the ceiling drive beam may be the same as the inside diameter of the face band, whereby the ceiling drive beam may be connected detachably, positively and non-positively with the face band, in the vicinity of the adjacent butt edges of the two segments of the face band which have been closed to form a full circle.
In other words, at least one possible embodiment of the present invention therefore preferably teaches that the ceiling drive beam is located between the segments and is continuous over the entire inside diameter of the face band, whereby it contains the drive, control and regulation components in its central portion, in the manner of the known art. The outer areas facing the inside wall of the face band may have only a load-bearing or supporting function and may stiffen the entire ceiling construction. On account of the length of the ceiling drive beam, when the ceiling drive beam is used for a revolving door with a large diameter, sufficient space may be available for the installation of a higher-powered drive or additional control and regulation components. This additional space can also be used for additional components for a drive, for example, and the control of night surrounds, lights, alarms, or locking devices, the control of emergency escape routes, etc. An adaptation of the ceiling drive beam to different diameters of face bands can be accomplished in an essentially extremely simple manner by installing appropriate adapters for the ceiling drive beam on the face side, between the ceiling drive beam and the face band.
The ceiling drive beam may be essentially advantageously realized at least over parts of its length or over its entire length in the form of a box-like hollow body, whereby for the adaptation to different diameters of face bands, it can, in an additional possible configuration of the present invention, consist of a plurality of box-like hollow bodies that are detachably connected with one another.
A particularly effective bracing and stiffening of the ceiling construction can be achieved if the ceiling drive beam is detachably connected with the face band by means of its face surfaces that are adjacent to the face band, whereby simultaneously the butt surfaces of the face bands of the two segments that face one another are centered with respect to one another.
To achieve an additional bracing that runs at a right angle to the longitudinal direction of the ceiling drive beam, at least one possible embodiment of the present invention preferably teaches that it is appropriate to support the ceiling drive beam on the face band by means of struts that run essentially orthogonal, transverse, or at right angles to the longitudinal direction of the ceiling drive beam.
The ceiling drive beam may be essentially advantageously embedded in the ceiling construction so that the face band of the ceiling construction that encloses the ceiling drive beam within itself may be bordered on the top by two semicircular ceiling segments and on the bottom by a plurality of inspection segments that are closed to form a full circle.
One possible result, on a revolving door of the type described above, may be a ceiling construction with a ceiling drive beam integrated in it, which does not have to be modified in terms of its cross section dimensions to adapt it to face bands and thus to revolving doors of different diameters. That may mean that only the length of the ceiling drive beam may need to be adapted—by the addition of adapters, for example—to the respective inside diameter of the face band, whereby the pattern of holes for the connection between the ceiling drive beam and the face band can be retained. The ceiling drive beam may form a bracing element of the overall ceiling construction, and on account of its length may make possible the installation of different drives as well as control and regulation components in the interior of the ceiling drive beam that are coordinated with the respective requirements of the individual revolving door.
In at least one possible embodiment of the present invention, the revolving door system may be operated manually or without a microprocessor.
In another possible embodiment of the present invention, the revolving door system may be operated using a microprocessor.
The above-discussed embodiments of the present invention will be described further hereinbelow with reference to the accompanying figures. When the word “invention” is used in this specification, the word “invention” includes “inventions”, that is, the plural of “invention”. By stating “invention”, Applicant does not in any way admit that the present application does not include more than one patentably and non-obviously distinc
Dorma GmbH + Co. KG
Nils H. Ljungman & Associates
Redman Jerry
LandOfFree
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