Abstract:
An elevator cab lock (25) includes a lug (32) on a horizontally moveable elevator cab (17) that receives a bolt (35) which is urged into the lug by a spring (45) and retracted from the lug by means of a solenoid (43) disposed on the elevator car frame. Switches (41, 42) keep track of the position of the bolt; locks may be used on car frames, landings and carriers in various configurations.
Abstract:
To prevent elevator rope stretch effects when a horizontally transferable elevator cab is rolled onto and off of an elevator car frame, an elevator car/floor lock includes a bolt which extends across the interface between the car frame and the building and engages a strike. Jack screw and solenoid embodiments are shown. To take the weight off the lock bolts so that they may be retracted to permit moving the car frame vertically in the hoistway, strain gages or load sensors provided in or adjacent the bolts sense the weight supported thereby, and a pretorque program provides armature current to the hoisting motor to raise or lower the car frame sufficiently to reduce the load on the bolts to nil.
Abstract:
Horizontally moveable elevator cabs A-E are transferrable between the car frames (72) of two elevators HI, LO in adjacent hoistways which extend between at least three levels (GND, MID, SKY) of a building, and between the car frames and landings L, R at said levels. The vertical movement of cars in the hoistways is synchronized, and transfer of elevator cabs between landings and car frames is simultaneous.
Abstract:
A plurality of elevator shuttles (1-10) are dispatched in a sequence at regular intervals which extend across the average round trip run time for all of the shuttles, by enabling a shuttle to run (101, in response to the shuttle being ready to run (96) following expiration of a dispatching interval (97) which equals the average run time of all the shuttles (91).
Abstract:
A safety gate (24) is slidable vertically from an upper position at an elevator cab landing (22) where it obstructs movement of the elevator cab (20) into a hoistway, and a lower position that permits cab travel between a car frame (29) and the landing. An actuator (42) normally urges the gate upwardly; the actuator is moved by a cam assembly (35) on an approaching elevator car frame so as to slide the gate (24) downward, out of the way of cab motion.
Abstract:
An elevator cab lock (25) includes a lug (32) on a horizontally moveable elevator cab (17) that receives a bolt (35) which is urged into the lug by a spring (45) and retracted from the lug by means of a solenoid (43) disposed on the elevator car frame. Switches (41, 42) keep track of the position of the bolt; locks may be used on car frames, landings and carriers in various configurations.
Abstract:
To prevent elevator rope stretch effects when a horizontally transferable elevator cab is rolled onto and off of an elevator car frame, an elevator car/floor lock includes a bolt which extends across the interface between the car frame and the building and engages a strike. Jack screw and solenoid embodiments are shown. To take the weight off the lock bolts so that they may be retracted to permit moving the car frame vertically in the hoistway, strain gages or load sensors provided in or adjacent the bolts sense the weight supported thereby, and a pretorque program provides armature current to the hoisting motor to raise or lower the car frame sufficiently to reduce the load on the bolts to nil.