Wheelchair actuated panic hardware for fire doors

摘要

A mechanical apparatus that transfers the energy of a push on a lower bar located near the bottom edge of a fire door to an upper actuating bar located at the middle of the fire door. The apparatus uses a series of linkages to transfer the energy from the lower bar to the upper actuating bar. The upper actuating bar is mechanically coupled with a latch on the fire door. The latch disengages and engages a strike on the door jamb to open the fire door. The linkages are configured such that depressing the lower bar causes the same action on the actuating bar which, in turn, will disengage the latch from the strike and allow the fire door to open.