Revolving Doors

It consists of a centrally placed pivot to which four radiating shutters are attached. Central pivot is supported on ball bearing at the bottom and at the top has a bush bearing. The shutters may be fully or partly made up of glass. Circular space of entrance is provided within which shutters rotate. They give entrance on one side and exit on other side since shutters rotate. In public buildings like stores, banks, hotels, theatres these types of doors are preferred where continuous use of doors is necessary. They are very much required in entrance to air conditioned public buildings. Given figure shows a typical revolving door.

                                           Revolving door