An apparatus comprising a counterweight, and a controller. The counterweight may comprise a frame, wheel hub motors, friction devices, weight load. The counterweight may be off its equilibrium position. The wheel hub motors may push on the guiderails/beams applying a force. The guiderails/beams front surface may tightly fit between the wheel hub motors and the friction devices wheels to (a) ensure the wheel hub motors rotate without slip. The controller may be configured to receive a signal to power the wheel hub motors and disengages the brake to (i) drive the car upwards, (ii) to drive the car downwards in response to a signal. The controller may be configured to receive a signal to stop the current flow to the motors and engages the brake to stop the car in response to a signal.

An elevator apparatus includes: a traction machine including a sheave around which a middle portion of a main rope from which a car and counterweight are suspended is wound; a controller configured to control travel of the car; a section specification unit configured to specify a determination target section serving as a travel section, including at least a travel position of the car, satisfying a predetermined determination execution condition; a sheave rotation detector configured to detect a sheave rotation amount; and a determinator configured to determine traction performance of the sheave based on the sheave rotation amount detected during travel of the car in the determination target section. The determination execution condition is to have a load weight and an acceleration of the car that cause direction of an acceleration vector of one of a car side and a counterweight side heavier than the other to match an ascent direction.

A door frame of an elevator system forms a chamber for accommodating a control unit and includes a first door frame element delimiting the chamber and having a first side closure extending in a straight line and a second door frame element delimiting the chamber and having a second side closure parallel to the first side closure. A fastening element extending along the side closures releasably fixes the first and second door frame elements together. The fastening element is arranged on the first and second door frame elements so as to be movable along the side closures and has a tool element for moving the fastening element from a locked position into a release position, wherein the first door frame element is fixed in the locked position on the second door frame element and can be removed from the second door frame element in the release position.

The invention relates to a method for winding a cable winch, in which method a plurality of cable winding layers is wound one over the other, a plurality of cables being wound, in multiple strands, onto the same winding region of the cable winch such that the cables are adjacent to each other in the same cable winding layer.

In accordance with the present invention, an elevator core structure includes an elevator frame (120) separated from a main frame (110) and extending in a longitudinal direction of the main frame (110), and a guide frame (130) formed on an inner surface of the elevator frame (120). Here, the elevator frame (120) may be formed by stacking a plurality of frame segments (121), and a guide frame unit (131) forming the guide frame (130) may be mounted to one surface of each of the frame segments (121). The present invention exhibits an effect of early-constructing the elevator frame regardless of a construction schedule of a main frame of a building.

An illustrative example embodiment of an elevator includes an elevator car and a drive mechanism connected with the elevator car. The drive mechanism moves with the elevator car in a vertical direction. The drive mechanism includes at least one drive member that is configured to engage a vertical structure near the elevator car, selectively climb along the vertical structure to cause movement of the elevator car, and selectively prevent movement of the elevator car when the drive member remains in a selected position relative to the vertical structure. A biasing mechanism urges the drive member in a direction to engage the vertical structure. The biasing mechanism applies a biasing force based upon a condition of the elevator car. The biasing force changes based upon a change in the condition.

A foldable elevator structure having a plurality of members is shown having each current member sequentially attached between a preceding member and a succeeding member. This connection schema continues until the last member is attached to the first member and a completed enclosed structure is formed such that all members have been attached. In this fashion, the foldable structure is foldable between each set of two adjacent members.

A vertical magnetic frame system 142.a, and 142.b, installed in the elevator hoist way, holding on it the entire weight of the stationary traction rope rizes 120, 124, and 126, 128, for the prefered traction system described herein, and used it to move the self-climbing elevator 100, up, or down in the elevator shaft. Further, the preferred traction system is a novelty, allowing the elevator car 100 to move up by traction gears described in FIG. 2.a, FIG. 7.a, and FIG. 10, and to move down gravitationally described in FIG. 11, and in the process to collect more than 85 percent of gravitational velocity of the descending elevator car 100, turning it ito the electricity for the building using this system

A fastening apparatus for fastening a drive of an elevator system, wherein the elevator system includes an installation structure for installing the drive, has a beam with two feet for fastening the beam to the installation structure. The fastening apparatus includes a drive bracket for receiving the drive, wherein the drive bracket is fastened to the beam, and a support leg that is fastened at one end to the drive bracket and additionally supports the drive bracket on the installation structure.

The invention refers to an elevator system having a plurality of elevator cars, which elevator cars comprise several first cars and at least one second car, which second car differs from the first cars in its size and/or technical configuration, whereby the first cars and the second car run together within one and the same elevator shaft, which elevator system comprises an elevator control comprising a call allocation control having a first part connected to at least one call input device for allocating the first elevator cars and a second part connected to at least one call issuing means for the call allocation of the second car, whereby the first and second part of the call allocation control are configured to work independently of each other.