Abstract:
A support member configured for use in a machine room of an elevator system is provided including a base having a car end and a counterweight end. The counterweight end is arranged substantially parallel to a wall of the machine room, and the counterweight end is arranged at an angle relative to the car end. An idler sheave having a plurality of grooves is mounted to the base in an orientation generally parallel to the car end. The idler sheave is configured to rotate about a first axis of rotation. A plurality of individual sheaves is mounted to the based in a staggered configuration substantially complementary to the angle of the counterweight end relative to the car end. Each individual sheave is configured to rotate about a second axis of rotation parallel to the first axis of rotation.
Abstract:
A counterweight is provided including a counterweight frame including a crosshead. A counterweight hitch is operably coupled to the counterweight frame. The counterweight hitch includes a vertically stacked first sheave channel and a second sheave channel. Each of the first sheave channel and second sheave channel includes an interior cavity within which at least one individual sheave assembly is mounted. The plurality of individual sheave assemblies is substantially identical and arranged at an angle relative to a central plane of the counterweight frame.
Abstract:
A rooftop unit for a machine-roomless elevator (28) includes a selectively removable cover (38) that covers the machine components (46). In one example, the removable cover is movable relative to the rooftop without requiring removal of the entire cover.
Abstract:
The present invention includes a method and a device for transporting an elevator car drive machine within an elevator hoistway. The drive machine is secured to a movable carriage located in the hoistway and the carriage is moved in a horizontal direction of travel to move the drive machine horizontally within the hoistway.
Abstract:
A single support device (30) is adapted to support and secure a machine (34) at least one sheave (38) and a plurality of termination members (44, 46). The single support device (30) is conveniently installed within a hoistway (26) or within a machine room (90). The machine (34) and sheave (38) may be premounted to the support device (30) and the entire assembly can be lowered into position by crane (300).
Abstract:
A counterweight is provided including a counterweight frame including a crosshead. A counterweight hitch is operably coupled to the counterweight frame. The counterweight hitch includes a vertically stacked first sheave channel and a second sheave channel. Each of the first sheave channel and second sheave channel includes an interior cavity within which at least one individual sheave assembly is mounted. The plurality of individual sheave assemblies is substantially identical and arranged at an angle relative to a central plane of the counterweight frame.
Abstract:
A deflector sheave mounting bracket 100 for mounting a plurality of individual deflector sheaves 80 of an elevator system includes a top plate 104, a bottom plate 106, and a plurality of support plates 102 connected at a first end to the top plate and connected at a second, opposite end to the bottom plate. A plurality of openings 120 for receiving the plurality of deflector sheaves is defined between pairs of adjacent support plates of the plurality of support plates. At least one opening of the plurality of openings is vertically offset and horizontally offset from another of the plurality of openings.
Abstract:
An elevator system includes a hoistway defined by a surrounding structure. An elevator car and counterweight are located in the hoistway, and a drive motor is located between the elevator car and a sidewall of the hoistway. The drive motor drivingly couples and suspends the elevator car and counterweight via at least one flat rope or belt.
Abstract:
A machine-roomless elevator system (10) includes an elevator car (16) propelled by an elevator machine (32) mounted thereon and at least one flat rope (22) for suspending the elevator car (16) and providing traction therefor. Use of flat ropes combined with various roping arrangements reduces the size of the elevator machine (32) required to propel the elevator car (16). Smaller size elevator machines are more practical and result in cost savings for the elevator system (10). Additionally, placement of the elevator machine (32) on the elevator car (16) provides a safer environment for the elevator maintenance crew.
Abstract:
An elevator system includes a hoistway defined in a surrounding structure, and an elevator car and at least one counterweight disposed in the hoistway. The hoistway defines an overhead space over a vertical extent of the hoistway between a ceiling of the hoistway and a top portion of the elevator car at its highest operable location along the hoistway. At least one drive motor is disposed in the overhead space and drivingly couples and suspends the elevator car via at least one flat rope or belt.