Revolving Door Locking Mechanism

Using revolving doors people can enter and exit high traffic buildings with ease without needing to pull a lever or twist a knob.

Revolving door locking mechanism.

Revolving doors may be manually or automatically operated. Revolving doors have four panels that may collapse upon themselves to open an egress point older doors may not. These are enclosed in a round enclosure with openings on the inside and outside to allow passage as the door rotates within the enclosure. Note the construction of the door and the locking mechanism.

A revolving door including a plurality of door leaves extending radially outwardly from a center shaft in angularly spaced. 1 2 3 4. Saturn locks 4 brushed chrome 8 polished chrome 4 brushed bronze 8 polished bronze. Us4970825a collapsing mechanism for revolving doors google patents.

Revolving doors consist of three or four leaves or wings centered on a central pivoting shaft that has a vertical axis. A revolving door mitigates stack effect by allowing traffic while sealing air flow. The door leaves then pivot around a vertical axis within a partial cylindrical drum. Replacement parts wings mechanisms.

Infiltration through a revolving door except for a small amount passing though the door seals is virtually not affected by building height indoor outdoor pressure difference and fan operation. Overhead doors are counter balanced with springs or weights.