Innretning for evakuering av heispassasjer
An elevator drive has a traction sheave over which ropes are passed to move an elevator car and a counterweight up and down in an elevator hoistway. An elevator control in a control cabinet on a landing is connected with another elevator control in the hoistway and with the elevator car, and control...
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Zusammenfassung: | An elevator drive has a traction sheave over which ropes are passed to move an elevator car and a counterweight up and down in an elevator hoistway. An elevator control in a control cabinet on a landing is connected with another elevator control in the hoistway and with the elevator car, and controls how the elevator car moves. The control cabinet also has a handle that is part of a Bowden cable acting on a brake of the elevator drive. The handle can be used to manually release the brake which permits the elevator car to move up or down depending on the difference in weight between the elevator car and the counterweight. The position of the elevator car in the hoistway is of significance to the elevator control. A tensioned toothed belt spanning the height of the hoistway is in contact with an encoder that detects the absolute position of the elevator car for the elevator control. For evacuation, a signal device is provided which allows evacuation of the car without looking into the elevator hoistway. |
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