Abstract:
To provide a double-deck elevator characterized by the fact that by increasing the story height adjustment range in the direction in which the two cars approach each other, it is possible to increase the degree of building design freedom. Two up/down cars (6), (7) arranged in outer frame (5) are connected with each other by means of pantographic mechanisms (11) that can effect an expansion and contraction operation, and the two cars (6), (7) are driven to move towards each other or away from each other by means of pantographic mechanisms (11). The pantographic mechanisms (11) are arranged in the spaces between vertical beams (5a) and the two cars (6), (7) and each has a pivot point at the longitudinal central portion of vertical beams (5a) extending vertically in outer frame (5). Due to the pantographic mechanisms (11), the story height adjustment range in the direction in which the two cars (6), (7) approach each other is not restricted.
Abstract:
An elevator system that includes a film sensor is arranged on the inner surface of a wall panel in the elevator car, and a prescribed control operation is performed when the detection output of the film sensor exceeds a prescribed level. This system allows for a quick response to an emergency at low cost, and can be used in a variety of locations without influencing the layout and design of the elevator car.
Abstract:
First and second hoisting machines are provided with first and second hoisting-machine encoders that detect the ascending/descending speeds and positions of first and second cars, and rotary shafts of first and second speed regulators are provided with firs and second speed-regulator encoders that detect the ascending/descending speeds and positions of the first and second cars as the rotary shafts rotate. The relative ascending/descending speed and relative position of first and second cars are then determined based on the detection results.
Abstract:
An assembly (20) for controlling movement of an automatically moveable door panel (22) includes sensors (30, 50) such as microswitches positioned on at least one of a door panel (22) or a door frame member (26). The sensors provide an indication of different levels of relative movement between the door panel and the door frame member at an interface (28) between them. Such relative movement includes an increase in a gap between them that corresponds to a situation when an object is at the interface (28) and may be caught. The sensors (30, 50) respectively provide an indication of when an object may become caught and when one has.. Automated movement of a door is controlled responsive to an indication of the presence of an object in a location where the object may become caught during automatic movement of the door.
Abstract:
A monitoring system for a passenger conveyor is provided. The passenger conveyor includes a motor for driving the passenger conveyor and an inverter for supplying current to the motor. The monitoring system includes a current sensor for detecting the current supplied to the motor; a temperature sensor for detecting the temperature of the motor; a data collecting device for receiving detected data from the current sensor and the temperature sensor; and a controller connected to the data collecting device. The controller is configured to calculate an idle operation motor torque during an idle operation of the passenger conveyor based on current and temperature detected during the idle operation; and determine that a fault exists in the passenger conveyor when a difference between the idle operation motor torque and a reference motor torque exceeds a predetermined threshold.
Abstract:
An assembly (20) for controlling movement of an automatically moveable door panel (22) includes a sensor (30, 32, 34) positioned on at least one of a door panel (22) or a door frame member (24, 26). The sensitive portion provides an indication of when an object is in contact with or in very close proximity to a sensitive portion. A sensitive portion is established over an area of the door or door frame member at which an object may become caught during automated door movement. A disclosed example includes using an electromechanical film as a sensor so that the sensitive portion is responsive to pressure applied by the object on the sensitive portion. Another disclosed example includes a field effect sensor that generates an electric field that is at least partially interrupted when an object contacts or comes in very close proximity to the sensitive portion. Automated movement of a door is controlled responsive to an indication of the presence of an object in a location where the object may become caught during automatic movement of the door.
Abstract:
An elevator control system includes a sensor mounted on a first panel for detecting an obstacle in a region between the panel and a second panel and an alarm system that issues a warning when the sensor detects an obstacle during a period from deceleration of movement of an elevator to control for opening of an elevator door. A controller is configured to delay a start of the control for opening of the door when the sensor detects an obstacle while the elevator is stopped.
Abstract:
An elevator door closing device is provided comprising a closing weight for closing the elevator door and a weight guide for guiding the closing weight. The weight guide includes a vertical section and an inclined section extending at an angle with respect to the vertical section. The closing weight exerts a first gravitational force (F 1 ) on the elevator door when the closing weight is guided along the inclined section, and the closing weight exerts a second gravitational force (F 2 ) on the elevator door when the closing weight is guided along the vertical section. The second gravitational force (F 2 ) is higher than the first gravitational force (F 1 ).
Abstract:
An apparatus for determining the position of an elevator car (17) in a hoistway comprising an elevator car (17), a governor (13) attached to the car, an at least one absolute multi-turn encoder (15) in communication with the governor and capable of communicating an absolute position of the elevator car, at least one sill sensor (21) affixed to the elevator car and a plurality of activators (19) affixed to the hoistway to indicate when an actual position of the car is approximately equal to the predetermined position.