Patent ID: 8926773
Filing Date: 2015-01-06
Classification: E05F,E05Y,F16H,Y10T

Abstract:
1. Drive device for a rotor of a revolving door, comprising: a main drive motor having a main-drive-motor shaft which is coupled with a power transmission means via a gear means, the power transmission means being designed to drive the rotor, an auxiliary drive motor having an auxiliary-drive-motor shaft, wherein the main-drive-motor shaft is coupled with the auxiliary-drive-motor shaft, so that the auxiliary-drive-motor shaft is coupled with the rotor, a coupling means, wherein the main-drive-motor shaft is coupled for rotation with the auxiliary-drive-motor shaft by means of the coupling means; a main control means connected to the main drive motor; and an auxiliary control means connected to the auxiliary drive motor and to the main control means, wherein the auxiliary control means is designed to receive control signals from the main control means, wherein the main control means comprises a signal input for receiving at least one of (1) a start signal which initiates starting of the revolving door, and (2) a stop signal which initiates braking of the revolving door, wherein upon receipt of a start signal or a stop signal by the main control means, the auxiliary control means controls the auxiliary drive motor such that it is activated for starting or braking the revolving door, the main control means further comprising a failure signal input for receiving a failure signal of the main drive motor, the auxiliary control means further comprising a failure signal input for receiving a failure signal of the auxiliary drive motor, wherein upon receiving the start signal or the stop signal and without receiving the failure signal of the main drive motor and the auxiliary drive motor, the main control means controls the activation of at least one of the main drive motor and the auxiliary drive motor for starting or braking the revolving door, wherein upon receiving the start signal or the stop signal and receiving the failure signal of the main drive motor, the main control means controls the auxiliary control means such that the auxiliary drive motor is activated for starting or braking the revolving door, and wherein upon receiving the start signal or the stop signal and upon receiving the failure signal of the auxiliary drive motor, the main control means controls the main drive motor for starting or braking the revolving door.