Revolving Door Locking Mechanism

Us1963881a independent wing locking device for revolving doors google patents independent wing locking device for revolving doors download pdf info publication number.

Revolving door locking mechanism.

They can be calculated to allow up to 50 people to evacuate per door. Latch and lock mechanism for lockers etc. Manual revolving doors clearflow manual all glass revolving door system designed for accentuating high volume traffic to automatic revolving door systems. Various security options including detection and prevention of unauthorized access in automatic revolving doors card reader access and sliding dead bolt locks ideal for high security areas such as banks and office buildings.

Permitted doors are manual revolving doors that don t use any type of door wing locking mechanism during operation automatic and security revolving doors are excluded from this category. The door also includes upper and lower collapsing mechanisms which are adapted to normally maintain the door leaves in their radial positions. Lock cases revolving door rehab kit. Buildings with heavy traffic require entrances that are safe secure and user friendly.

Those doors use a braking mechanism to prevent opposite flow then the door automatically revolves backwards to allow the offender to exit from the entry side. A revolving door typically consists of three or four doors that hang on a central shaft and rotate around a vertical axis within a cylindrical enclosure. For protection against unintended bookfolding the patented crane bookfold lock mechanism. The door leaves are mounted in a door opening for rotation about said center shaft by upper and lower bearing means.

Revolving doors were designed to relieve stack effect pressure in buildings. Crane revolving doors are available in hundreds of configurations for virtually any entrance. A concealed mechanism to collapse revolving door wings for emergency egress. On every crane door is our bookfold mechanism that meets ansi 156 27 nfpa 101 life safety and international building codes.

A version of revolving doors is used in factory and subway environments where the leaves of the door are made from horizontal pipes that interleaf with a barrier to allow entry in only. Revolving doors are energy efficient as they acting as an airlock prevent drafts thus decreasing the loss of heating or cooling for the building. Built with a center point design the clearflow is ideal for accentuating the inner beauty of a building and is a good alternative to an automatic all glass system.