Revolving Door Locking Mechanism

A revolving door including a plurality of door leaves extending radially outwardly from a center shaft in angularly spaced.

Revolving door locking mechanism.

Us4970825a collapsing mechanism for revolving doors google patents. Either can fail under high heat conditions and trap firefighters. Overhead doors are counter balanced with springs or weights. 1 2 3 4.

Revolving doors may be manually or automatically operated. A revolving door mitigates stack effect by allowing traffic while sealing air flow. The basic design of this type of door includes from two to four vertical leaves attached overhead with a central shaft. 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. International revolving door offers replacement parts for all of our revolving doors in service today. 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. Revolving doors have four panels that may collapse upon themselves to open an egress point older doors may not.

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.