Revolving Door Locking Mechanism

A revolving door mitigates stack effect by allowing traffic while sealing air flow.

Revolving door locking mechanism.

Us4970825a collapsing mechanism for revolving doors google patents. Either can fail under high heat conditions and trap firefighters. Using revolving doors people can enter and exit high traffic buildings with ease without needing to pull a lever or twist a knob. A revolving door including a plurality of door leaves extending radially outwardly from a center shaft in angularly spaced.

Overhead doors are counter balanced with springs or weights. 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. International revolving door offers replacement parts for all of our revolving doors in service today. The door leaves then pivot around a vertical axis within a partial cylindrical drum.

Revolving doors consist of three or four leaves or wings centered on a central pivoting shaft that has a vertical axis. Replacement parts wings mechanisms. Saturn locks 4 brushed chrome 8 polished chrome 4 brushed bronze 8 polished bronze. These are enclosed in a round enclosure with openings on the inside and outside to allow passage as the door rotates within the enclosure.

Revolving doors may be manually or automatically operated. Note the construction of the door and the locking mechanism.