# US 2014/0190286 A1 · Drive device for a carousel door > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190286 A1 - Document ID: US20140190286A1 - Status: Published application - Kind: A1 - Application number: 14/240,149 - Filed: 2012-08-22 - Published: 2014-07-10 - Earliest claimed: 2011-09-01 - Assignees: Agtatec AG - Inventors: Heinz-Peter Aeppli; Samuel Hedinger - Web page: https://patentgrep.com/patent/US20140190286A1 ## CPC - F16H 37/041: {for conveying rotary motion with constant gear ratio} - E05F 15/608: for revolving wings - E05Y 2201/434: Electromotors; Details thereof - E05Y 2400/302: during electric motor braking - E05Y 2400/502: of components - E05Y 2400/532: Emergency braking or blocking - E05Y 2800/21: of identical elements, e.g. of identical compression springs - E05Y 2800/242: arranged in parallel relationship - E05Y 2800/244: arranged in serial relationship - E05Y 2800/246: with at least one element being redundant - E05Y 2900/132: Doors - Y10T 74/1836: Rotary to rotary - F16H: GEARING - E05F: DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING - E05Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract The present invention discloses drive device for a rotor of s carousel door, In addition to a main drive motor (10), which has a main-drive-motor shaft (12), the drive device according to the invention comprises a secondary drive motor (12) with a secondary-drive-motor shaft (22). The main-drive-motor shaft (12) is coupled at least indirectly to the secondary-drive-motor shaft (22, 62) in terms of rotation, and therefore the secondary-drive-motor shaft (22, 62) is coupled to the rotor in terms of movement. ## Claims ### Claim at position 1 1-10. (canceled) ### Claim 11 Drive device for a rotor of a revolving door, comprising: a main drive motor having a main-drive-motor shaft which is coupled in terms of movement with a power transmission means via a gear means, the power transmission means being designed to drive the rotor, the drive device further comprises an auxiliary drive motor having an auxiliary-drive-motor shaft; and the main-drive-motor shaft is at least indirectly coupled in terms of rotation with the auxiliary-drive-motor shaft, so that the auxiliary-drive-motor shaft is coupled in terms of movement with the rotor, characterised by the following features: the drive device further comprises a coupling means; and the main-drive-motor shaft is coupled in terms of rotation with the auxiliary-drive-motor shaft by means of the coupling means. ### Claim 12 (depends on 11) Drive device according to claim 11, characterised by the following features: the gear means comprises a worm gear with a worm shaft and a worm wheel; and the power transmission means comprises a belt, preferably a toothed belt. ### Claim 13 (depends on 11) Drive device according to claim 11, characterised by the following features: the supplementary gear means comprises a supplementary worm gear with a supplementary worm shaft and a supplementary worm wheel; and the supplementary power transmission means comprises a supplementary belt, preferably a supplementary toothed belt. ### Claim 14 (depends on 11) Drive device according to claim 11, characterised by the following features: the drive device further comprises 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; the auxiliary control means is designed to receive control signals from the main control means or from a central control means; the main control means comprises a signal input for receiving a start signal which initiates starting of the revolving door, and/or a stop signal which initiates braking and/or stopping of the revolving door; upon receipt of a start signal or a stop signal by the main control means or by the central control means, the auxiliary control means controls the supplementary drive motor such that it is activated for starting or braking the revolving door. ### Claim 15 (depends on 14) Drive device according to claim 14, characterised by the following features: the main control means further comprises a failure signal input for receiving a failure signal of the main drive motor; the auxiliary control means further comprises a failure signal input for receiving a failure signal of the auxiliary drive motor; upon receiving the start signal or the stop signal and without receiving a failure signal of the main drive motor and the auxiliary drive motor, the main control means controls the activation of the main drive motor and/or the auxiliary drive motor for starting or braking the revolving door; 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 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. ### Claim 16 (depends on 11) Drive device according to claim 11, characterised in that the main drive motor and/or the auxiliary drive motor in each case comprise(s) an electric motor. ### Claim 17 (depends on 11) Revolving door with the following features: the revolving door comprises a rotor; the rotor comprises at least two wings and a rotor drive which preferably comprises a belt pulley; the rotor rotates about a central axis, characterised by the following features: the revolving door comprises a drive device according to claim 11; the rotor drive is coupled in terms of movement with the power transmission means and can be driven and/or braked by the drive device. ### Claim 18 (depends on 17) Revolving door according to claim 17, characterised in that the rotor drive is additionally coupled in terms of movement with the supplementary power transmission means.