Revolving Door Locking Mechanism

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

Revolving door locking mechanism.

The basic design of this type of door includes from two to four vertical leaves attached overhead with a central shaft. International revolving door offers replacement parts for all of our revolving doors in service today. Either can fail under high heat conditions and trap firefighters. Note the construction of the door and the locking mechanism.

Revolving doors consist of three or four leaves or wings centered on a central pivoting shaft that has a vertical axis. Using revolving doors people can enter and exit high traffic buildings with ease without needing to pull a lever or twist a knob. Us4970825a collapsing mechanism for revolving doors google patents. Revolving doors have four panels that may collapse upon themselves to open an egress point older doors may not.

A revolving door including a plurality of door leaves extending radially outwardly from a center shaft in angularly spaced. These are enclosed in a round enclosure with openings on the inside and outside to allow passage as the door rotates within the enclosure. 1 2 3 4. Revolving doors may be manually or automatically operated.

Overhead doors are counter balanced with springs or weights. Replacement parts wings mechanisms.