Movable or removable closures – Plural wings radiate from common pivot; i.e. – revolving – Wings fold for through passage
Patent
1995-10-20
1997-06-03
Dorner, Kenneth J.
Movable or removable closures
Plural wings radiate from common pivot; i.e., revolving
Wings fold for through passage
49 44, E05D 1502
Patent
active
056342950
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a revolving door.
BACKGROUND OF THE INVENTION
Revolving or rotating doors are used as a particularly impressive, eye-catching embodiment for an entryway into a building. These revolving or rotating doors can be installed frontally, outside a facade wall, inside the wall, or in the middle of the wall.
They form a passageway with bow-shaped dram walls provided at the entry on the left and right of the entrance, between which a rotor revolves.
One revolving door of this generic type has been disclosed by British Patent BR-A 187 740. This revolving door includes four door wings offset circumferentially by 90.degree.. In the usual operating position, all four door wings are aligned radially, so that the door wings each come to rest opposite their pivot axis in the region of the central axis or axis of symmetry that is free of rotational axis bodies and that penetrates the passageway. In order to unblock the passageway as generously as possible, for instance in the event of danger, two door wings can be pivoted in pairs toward one another and thus toward the lateral outer walls of the passage that define the passageway.
U.S. Pat. No. 1,202,801 discloses a largely similar revolving door. This previously known revolving door includes four door wings with external pivoting axes, which wings are disposed offset from one another by 90.degree.. In order to be able to unblock the passageway in the event of an emergency, it is possible to pivot the individual door wings in succession in the direction of escape on their external pivot axes.
The object of the present invention, therefore, is to produce an improved revolving door.
SUMMARY OF THE INVENTION
The present invention creates an embodiment, which is highly attractive aesthetically as well, for unblocking a wide passageway in the event of panic or for transposing goods through the revolving door. It is in fact provided according to the invention that the door wings comprise sliding door elements. This offers the opportunity of shortening the effective length of the individual door wings by moving the sliding door elements toward one another when the door pivots outward to unblock the passageway. This also avoids having the door wings overlap when pivoted into the open position, as is the case in the prior art.
In principle, Geman Patents DE-PS 161 780 and DE-PS 164 248 have likewise disclosed a revolving door. These known revolving doors, though, address a completely different stated object. These disclosures, published prior to the filing date of the present application, provide that at the entry and exit respectively of the passageway embodied by the revolving door, the door wings can be folded around an external pivot axis into a closed position. In other words, the pivoting wings then act like normal swinging doors at the entry and exit of the revolving door passageway. To that end, each of the wing doors is divided in two. Each door wing is comprised of two articulatingly connected individual wings, which can be laid against each other. The shorter door wing section can be folded so that at the entry and exit of the passageway, these door wings can then be used as normal swinging doors. As a result, the passageway is closed off evenly by two pairs of swinging doors disposed one behind the other and is not unblocked and opened in accordance with the invention.
In a particularly preferred embodiment form of the invention, the respectively cooperating pairs of wing doors are coupled to each other and can be adjusted commonly between their open position and their operation which allows the normal operation of the revolving door.
In a particularly preferred embodiment form, the sliding door elements, which are disposed on the inside in the closed position, are each coupled to a cooperating pair of wing doors, for example articulatingly coupled. This reveals the possibility that both cooperating pairs can each be pivoted between their closed and open position via a single drive mechanism, which can is disposed preferably in the couplin
REFERENCES:
patent: 798786 (1905-03-01), Hansen
patent: 1202801 (1916-06-01), Carter
patent: 1417372 (1922-04-01), Friedland
patent: 2029914 (1936-02-01), Dreher
patent: 3285209 (1966-11-01), Pace
patent: 4843761 (1989-07-01), Sandling
"Besam KD-4" prospectus.
Dorner Kenneth J.
Record Turautomation GmbH
Redman Jerry
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