DEVICES FOR ACTIVATING ELEVATOR SAFETY BRAKES

    公开(公告)号:US20210371244A1

    公开(公告)日:2021-12-02

    申请号:US16882924

    申请日:2020-05-26

    发明人: Jordan Strother

    IPC分类号: B66B5/18 B66B5/00 B66B5/04

    摘要: Elevator systems utilize safety mechanisms with brakes that engage guide rails when an elevator car limit speed is exceeded or when a free-fall condition is detected. A device may be employed in such elevator systems to simultaneously activate the safety mechanisms and vastly decrease the likelihood that failure of the members connecting one safety mechanism will render other safety mechanisms inoperative. The device may generally include a rotatable central member that is configured to be coupled to a governor assembly of an elevator system. The device may also generally include linkages that connect the central member in parallel to the safety mechanisms. When the governor assembly is activated and exerts an activation force at the central member, the central member rotates to simultaneously activate the safety mechanisms and engage brakes of the safety mechanisms with the guide rails.

    Lift System Having a Slotted Hollow Conductor Arrangement

    公开(公告)号:US20210155448A1

    公开(公告)日:2021-05-27

    申请号:US15733754

    申请日:2019-04-04

    IPC分类号: B66B1/34 B66B9/00 B66B7/02

    摘要: A lift system includes at least one travel rail mounted in a shaft, and a lift car having a chassis that is disposed on and movable along the travel rail in a travel direction. Also mounted in the shaft is a slotted hollow conductor having a slot defined therein extending in the travel direction. A holding arrangement that holds a cabin antenna extending therefrom is further coupled to, and movable with, the lift car in the travel direction, such that the cabin antenna protrudes into an interior of the slotted hollow conductor through the slot, and is movable along the length of the slot as the car moves in the travel direction. An antenna guide extends parallel to the travel direction of the lift car and is configured to guide the cabin antenna in the slot of the slotted hollow conductor.

    ELEVATOR SYSTEM, CONTROL UNIT FOR AN ELEVATOR SYSTEM, AND METHOD OF OPERATING AN ELEVATOR SYSTEM

    公开(公告)号:US20210094798A1

    公开(公告)日:2021-04-01

    申请号:US16971612

    申请日:2019-02-14

    IPC分类号: B66B5/00 B66B9/00

    摘要: An elevator system includes first and second intersecting elevator shafts having respective guide devices disposed therein to guide the elevator car. The intersection area of the shafts includes a third guide device that rotates with respect to the shaft walls between alignment with the first and second elevator shafts, to permit an elevator car to transfer from one elevator shaft to the other. A safety device triggers a blocking signal in a control unit to prevent movement of the third guide device if the extent, or footprint/area, of the elevator car spatially overlaps the intersection extent defined by the area over which the third guide device can be rotated in the intersection area. A method for operating the elevator system includes triggering a blocking signal to prevent movement of the third guide device if there is an overlap between the elevator car extent and the intersection extent.

    COMPOSITE ELEVATOR BELT
    4.
    发明申请

    公开(公告)号:US20210024327A1

    公开(公告)日:2021-01-28

    申请号:US15733699

    申请日:2018-11-22

    IPC分类号: B66B7/06 F16G9/04 D07B1/04

    摘要: A composite elevator belt includes at least one load carrier strand extending in a longitudinal direction, a core layer encasing the at least one load carrier strand, and a first plurality of teeth extending transversely across a top surface of the core layer. The first plurality of teeth includes a root portion associated with the core layer and a tip portion. The composite elevator belt further includes a first jacket layer extending in the longitudinal direction, at least the tip portion of the first plurality of teeth being associated with a bottom surface of the first jacket layer.

    FIRE PROTECTION DEVICE FOR AN ELEVATOR SYSTEM

    公开(公告)号:US20210331893A1

    公开(公告)日:2021-10-28

    申请号:US17250368

    申请日:2019-07-12

    摘要: An elevator system with a fire protection device includes an elevator shaft having at least two adjacent shaft portions, a guide rail in the elevator shaft, a car displaceable on the guide rail, and a fire protection device having a detector, a control unit connected to the detector, and a closing element that is disposed between two mutually adjacent shaft portions of the elevator shaft and which is movable between an open and closed state to separate the two shaft portions while in the closed state. A method of operating a fire protection device for an elevator system includes detecting smoke and/or a fire via a detector, and transferring a closing element disposed in the elevator shaft from an opened state to a closed state.

    ELEVATOR SYSTEM HAVING SHAFT-CHANGING UNITS AND METHOD FOR OPERATING AN ELEVATOR SYSTEM HAVING SHAFT-CHANGING UNITS

    公开(公告)号:US20200317468A1

    公开(公告)日:2020-10-08

    申请号:US16755026

    申请日:2018-10-18

    摘要: A method can be utilized to operate an elevator installation comprising at least two elevator shafts, an elevator cabin, a control system, and a shaft changeover unit. With regard to the elevator cabin, the shaft changeover unit can adopt an enabled state in which entry into the shaft changeover unit is permitted and a disabled state in which entry into the shaft changeover unit is blocked. A travel route from a start position in the shaft system to a destination position in the shaft system via the shaft changeover unit is determined for the elevator cabin, whereby the elevator cabin is moved proceeding from the start position, and the control system controls a travel parameter of the elevator cabin such that the elevator cabin, proceeding from the start position, reaches the shaft changeover unit when the shaft changeover unit is in the enabled state for the elevator cabin.

    COMPOSITE ELEVATOR BELT AND METHOD FOR MAKING THE SAME

    公开(公告)号:US20210229956A1

    公开(公告)日:2021-07-29

    申请号:US17250127

    申请日:2018-11-22

    发明人: Frank Dudde

    IPC分类号: B66B7/06 D07B1/16 D07B1/22

    摘要: A composite elevator belt for engaging a sheave includes a load carrier having at least one load carrier strand extending substantially parallel to a longitudinal axis of the load carrier and a resin coating surrounding the at least one load carrier strand and defining a plurality of predetermined, deformable cavities within the resin coating adjacent the at least one strand. When the elevator belt is bent around the sheave, the elevator belt defines a neutral bending zone located within the elevator belt generally coincident with the longitudinal axis, a tension zone radially outward of neutral bending zone, and a compression zone radially inward from the neutral bending zone.

    PASSENGER CONVEYING SYSTEM COMPRISING MONITORING DEVICE

    公开(公告)号:US20200262678A1

    公开(公告)日:2020-08-20

    申请号:US16758521

    申请日:2018-10-26

    发明人: Wan-Khy CHOU

    IPC分类号: B66B1/24 B66B9/00

    摘要: A method can be used to operate an elevator system that comprises multiple elevator shafts, an elevator car, and a shaft changing unit. The elevator car can change from a first elevator shaft into a second elevator shaft by way of the shaft changing unit. To convey a user of the elevator system from a starting position to a destination position, a route is determined from a plurality of route options whereby initial values are taken into account for the determination of the route. In this context, a specification relating to use of the shaft changing unit is taken into account as an initial value from the initial values for the determination of the route.