| 20110108367 | GUIDING APPARATUS OF CAR AND COUNTERWEIGHT OF ELEVATOR - An elevator includes a pair of vertical shafts, each of which have a vertical first rail and a vertical second rail; a car engaged with the first rails of the shafts that the car moves along the shafts; a counterweight engaged with the second rails of the shafts that the counterweight moves along the shafts; and a driving unit having ropes with opposite ends connected to the car and the counterweight to drive the car to move. The elevator of the present invention only has the shafts to guide both of the car and the counterweight that there may be more space for the car to provide a great capacity in the same hoistway. | 05-12-2011 |
