Revolving door for placement in a facade of a building

• US 20040006919A1
• Filed: 05/22/2003
• Published: 01/15/2004
• Est. Priority Date: 11/24/2000
• Status: Active Grant

• Current Assignee: Boon Edam Inc.
• Original Assignee: Boon Edam Inc.
• Inventors: Wild, Paul Joseph
• Granted Patent: US 7,401,438 B2
• Time in Patent Office: Days
• US Class Current: 49/42
• CPC Class Codes: E05G 5/003 Entrance control E05G5/02 takes precedence
• CPC Class Codes: E05G 5/02 Trapping or confining mechanisms, e.g. transaction security boothsthief or burglar incapacitating means in general G08B15/00
• CPC Class Codes: E05Y 2900/132 Doors
• CPC Class Codes: E06B 3/90 Revolving doors; Cages or housings therefor turnstiles E06B11/08
• CPC Class Codes: E06B 3/906 combining radially extending wings and separately movable arcuate wings

Abstract

A revolving door for placement in a facade of a building to provide an entrance and exit to the building, comprising a rotation axis and door leaves mounted on the rotation axis, placed between cylinder segment-like shell elements, wherein the shell elements comprise at least one movable wall segment. The movable wall segment either blocks or gives way to an area between the entrance and the exit.

Claims

1. A revolving door for placement in a facade of a building to provide an entrance and exit to the building, comprising a rotation axis and door leaves mounted on the rotation axis placed between cylinder segment-like shell elements, wherein the shell elements comprise at least one movable wall segment that either blocks or affords admittance to an area between the entrance and the exit, wherein the same is provided with a sensor system for control of the movable wall segment.

2. A revolving door according to claim 1, wherein the rotation of the door leaves is allowed or refused, respectively, depending on the sensor system.

3. A revolving door according to claim 2, wherein the sensor system has a first sensor placed inside the building or in the revolving door for detecting objects that are unauthorized to move to the exit of the building.

4. A revolving door according to claim 2, wherein the sensor system has a second sensor placed outside the building or in a revolving door for detecting undesirable objects or weapons moving toward the entrance of the building.

5. A revolving door according to claim 1, wherein two cylinder segment-like shell elements are oppositely positioned, such that each shell element comprises a moveable wall segment defining a first and second area, such that after the respective wall segment has given way, the first area can only be entered from inside the building, and that after the respective wall segment has given way, the second area can only be entered from outside the building.

6. A method for operating a revolving door comprising a rotation axis and door leaves mounted on the rotation axis and placed between cylinder segment-like shell elements, which comprise at least one movable wall segment, wherein in a first position of the at least one wall segment the shell elements form a closed front along which the door leaves can be moved to provide a passage between an entrance and an exit of the revolving door and wherein a second position of the at least one wall segment, the closed front of the shell elements is interrupted to afford admittance to an area between the entrance and the exit of the revolving door, while simultaneously rotation of the door leaves is interrupted in order to block the passage between the entrance and the exit of the revolving door.