Revolving Door Locking Mechanism

Revolving doors may be manually or automatically operated.

Revolving door locking mechanism.

Us4970825a collapsing mechanism for revolving doors google patents. Replacement parts wings mechanisms. A revolving door mitigates stack effect by allowing traffic while sealing air flow. 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. Using revolving doors people can enter and exit high traffic buildings with ease without needing to pull a lever or twist a knob. These are enclosed in a round enclosure with openings on the inside and outside to allow passage as the door rotates within the enclosure. A revolving door including a plurality of door leaves extending radially outwardly from a center shaft in angularly spaced.

1 2 3 4. 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. The basic design of this type of door includes from two to four vertical leaves attached overhead with a central shaft.

Overhead doors are counter balanced with springs or weights. Revolving doors consist of three or four leaves or wings centered on a central pivoting shaft that has a vertical axis.