Device for preventing excessive speed of a door leaf caused by a power accumulator

摘要

A device for preventing excess speed, which is caused by an energy store, of a door leaf, includes a door leaf displaceable between an open position and a closed position, an energy store coupled with the door leaf, which energy store provides energy for the closing movement of the door leaf in the event of failure of the electrical energy supply, a door drive coupled with the door leaf, wherein electrical energy can be induced in the door drive when closing movement of the door leaf takes place, and a door control, which activates the door drive and which is suitable for regulation of the speed of movement of the door leaf, wherein the door control is operable by the induced electrical energy when the electrical energy supply fails, and a method of operating an elevator door.

主权项

1. A device for preventing excess speed of a door leaf caused by an energy store, comprising:
a door drive displacing the door leaf between an open position and a closed position; the energy store coupled with the door leaf, the energy store providing energy for a closing movement of the door leaf upon a failure of an electrical energy supply connected to the door drive, the closing movement moving the door leaf in a direction from the open position to the closed position; the door drive being coupled with the door leaf wherein electrical energy is induced in the door drive when the closing movement of the door leaf takes place; and a door control which actuates the door drive and which regulates a movement speed of the door leaf when the failure of the electrical energy supply occurs, wherein the door control is operated by the induced electrical energy.