Collapsible revolving door

Details Collapsible revolving door Collapsible revolving door

E - Fixed Constructions

06

B

E06B 3/90 (2006.01) E05D 15/02 (2006.01)

Patent

CA 2102052

- 14 - ABSTRACT OF THE DISCLOSURE A collapsible revolving door rotatable about a vertical access in a doorway having a floor and a ceiling Is disclosed. The door includes the central support shaft supported at its lower end on a rotatable bearing element resting on the floor. A motor is coupled to the upper end of the shaft for driving said shaft. Upper and lower support plates are affixed to such shaft and between them support the door leaves. Each of the upper and lower support plates includes pivot openings forming a pivot axis about which the door leaves can pivot relative to the shaft. Releasable locking means connects the door leaves to the central support shaft generally between the upper and lower edges of the door leaf. The locking means comprises at least one biased locking element which

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