Abstract:
An elevator system includes one or more rails fixed in a hoistway and an elevator car configured to move through the hoistway along the one or more rails. The system includes one or more braking systems having one more braking surfaces secured to the elevator car and frictionally engageable with one or more rails of the elevator system. One or more actuators are operably connected to the one or more braking surfaces configured to urge engagement and/or disengagement of the one or more braking surfaces with the rail to stop and/or hold the elevator car during operation of the elevator system.
Abstract:
An exemplary door frame assembly that is useful in an elevator system includes a plurality of door frame members including a header, a sill and a plurality of jambs. The door frame members are configured to be secured into a desired position along a hoistway. At least one guide rail bracket is supported by at least one of the door frame members. The guide rail bracket is moveable relative to the door frame member between a handling position in which the guide rail bracket is generally parallel to at least one of the header or the sill and a deployed position in which the guide rail bracket is generally perpendicular to the at least one of the header or sill.
Abstract:
An elevator system (20) includes more than one elevator car (22, 32) within a hoistway (26) Counterweights (24) and (34) each include at least one channel (36, 40) to accommodate load bearing members (28) or compensation members (42) such that the elevator cars (22, 32) are able to move independent from each other. Disclosed arrangements allow for positioning compensation members (42, 50) and load bearing members (28, 38) within a single hoistway in a manner that does not interfere with movement of either elevator car and counterweight set.
Abstract:
An elevator system (20) includes multiple cars (22, 24) within a hoistway (40). Parking positions (72, 74) are provided outside the range of passenger service levels (70). A destination entry strategy is used by a controller (60) for directing movement of the elevator cars (22, 24). The inventive combination of multiple cars in a hoistway, parking positions outside of the normal passenger service level range and destination entry car movement control allows for reducing car travel speed, reducing car size or both while still meeting desired handling capacity needs or even exceeding the desired handling capacity associated with another elevator system that requires larger cars, higher speeds and more building space.
Abstract:
A brake (26) for an elevator system (10) and method of using the brake (26) is disclosed. The brake (26) may comprise first and second brake linings (38) configured to be frictionally engageable with a rail (14) of the elevator system (10), a first biasing member (34) configured to urge the first brake lining (38) to engage the rail (14), and a first actuator (30) configured to move the first brake lining (38) to disengage the rail (14) when the first actuator (30) is energized. The brake (26) may be configured to be mounted on an elevator car (16) of the elevator system (10).
Abstract:
An exemplary elevator system includes an elevator car. A (22,42) car status indicator (60) provides information indicative of every position of the car and the velocity of the car. A controller (70) controls elevator car movement responsive to an indication from the car status indicator (60) that the elevator car is moving too fast near a landing corresponding to a scheduled stop of the elevator car.
Abstract:
An exemplary mounting arrangement for an elevator machine comprises a first ρortion (32) and a second portion (34). The first portion and the second portion are moveable relative to each other between a shipping position and a deployed position in which the first portion and the second portion are generally perpendicular to each other.
Abstract:
An elevator system (20) includes a controller (22) that communicates with a portable device (30) that is adapted to be carried about by a passenger (32). The system provides a color indication (28A - 28E) associated with an elevator car (26A - 26E) that will travel to a passenger's intended destination floor. In one example, the portable device (30) provides a color indication that corresponds to the color indication (28A-28E) associated with the car. Providing the color indication (34) on the portable device (30) assists a passenger (32) in locating the correct car and provides piece of mind to the passenger that they are entering the correct car and will be carried to their intended destination floor.
Abstract:
An elevator (20) associated within a hoistway (22) and having a speed and position detection system (62, 64, 70) is disclosed. The elevator (20) may include an elevator component (60) associated within the hoistway (22), an optical sensor (62) associated within the hoistway (22), an object (64) associated within the hoistway (22) in such a manner to be aligned in a path of the optical sensor (62), and a processor (70) operatively coupled to the optical sensor (62). The optical sensor (62) may be capable of emitting a signal (66) and receiving a reflected signal (68) of the emitted signal (66). The object (64) may have surface features (64a) that may reflect the signal (66). The processor (70) may be capable of processing the reflected signal (68) to provide an output indicative of a speed and position of the elevator component (60).
Abstract:
An elevator system 40 includes an over-acceleration and over-speed protection system capable of triggering a machine room brake and a safety trigger when over-speed or over-acceleration conditions are detected. The system includes a speed detector 42 and an acceleration detector 44. Based upon sensed speed and sensed acceleration, the controller 48 calculates a filtered speed of an elevator mass such as an elevator car 16 or counterweight, and compares the filtered speed to the threshold speed to determine whether an over-speed condition has been reached. The controller 48 activates a machine room brake when an over-speed condition exists, and engages an elevator safety 70A, 70B when it determines that the elevator mass is still in an over-speed condition after the machine room brake has been activated.