Abstract:
A door assembly (50) includes a coupler member (66) that moves responsive to a door mover (54) to couple a first door such as an elevator car door (22) to a second door such as a hoistway door (24). The coupler member (66) is pivotally mounted relative to a bracket (62) such that pivotal movement of the coupler member (66) activates a door reversal switch (74). A biasing member (80) biases the bracket (62) and the coupler member (66) in a direction of door movement during at least a door closing operation. The biasing member (80) keeps the coupler member (66) in a position to avoid activation of the door reversal switch (74) other than in the event of a door contacting an object during door movement.
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 door protection assembly (26) includes a holder device (30) that holds at least one door protection element (42) such as an emitter or a receiver in a desired alignment. The holder device (30) has a housing (32) that establishes a recess (34) within which the door protection element (42) is at least partially received. An example recess (34) includes a deformable surface (36) that deforms to accommodate irregularities, for example, in an exterior surface of the door protection element (42). The deformable surface (36) allows for automatically aligning the door protection element (42) into a desired position even when surface irregularities on that element exist in a disclosed example, the; deformable surface (36) also serves as a baffle to limit stray radiation. A disclosed example includes a plurality of extensions (38) that are flexible and accommodate the door protection element. A disclosed example supports door protection elements to establish a two-dimensional field of vision and a three-dimension field of vision.
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:
The inventive safety system is configured for elevator systems (50) comprising an elevator cabin (52) which can be displaced in an elevator shaft (51). The entrances to the elevator shaft (51) and to the elevator cabin (52) each have at least one sliding door (53, 54), which can be automatically operated by means of a drive that is preferably located on the elevator cabin (52). At least one detector device (55, 56) is provided on each sliding door (53, 54), said detector device being positioned in the vicinity of a potential crushing edge (59, 60) between a sliding door and a door jamb and/or between two adjacent sliding door leaves. The detector device (55, 56) generates a door release signal or interrupts the drive for opening the sliding doors (53, 54), according to the detected condition of the monitored zones (63, 64). The signals of the detector devices (56) on the sliding doors (54) of the elevator shaft (51) can be received in accordance with the position of the elevator cabin (52). In each case, the system only takes into consideration the signals of the detector device (56) of the sliding doors (54) of the elevator shaft (51) that are to be automatically opened next with the sliding door (53) of the elevator cabin (52).
Abstract:
A safety device for an automatically activated sliding door (44) is provided with at least one detector device. The detector device(s) is/are located in the area of a contact edge (46) that is formed between the sliding door (44) and a stationary door post (42) and/or between two adjacent sliding door leaves, and prevents the sliding door (44) from opening when a foreign body is present in the area monitored by the detection device. Said detection device comprises at least one less sensor (47) for detecting the presence of objects, which functions electromagnetically and/or acoustically and whose monitoring area (48) covers the contact edge (46) which extends vertically and an area of the flat side (45) of the sliding door (44) or a sliding door leaf (44) that is located in front of the contact edge (46).
Abstract:
A safety device for elevator doors comprises an object detecting device (20) provided on at least one of an inner door (9) mounted in a cage and outer doors (8) installed on respective floors to detect an object S being detected, existing in a detection area set at a tip end of the door in non-contact manner and/or contact manner. The door is stopped or reversed when the detecting device (20) detects the object being detected during a door closing operation.
Abstract:
An optical obstructing sensing system is described. Control signals are optically transmitted across the obstruction sensing area thereby obviating the need for a physical connection between the array of emitters and receivers which define the obstruction sensing area. Optical commands control the scanning functions of the obstruction sensing array. The optical conditions in the obstruction sensing area are analysed by means of optical beams transmitted from one side of the obstruction sensing area to the other. In this manner, corrections for ambient light, obstruction sensing array geometry, and spurious signals may be accounted for and appropriate compensation made. The invention further describes an obstruction sensing method where the decision as to whether an obstruction is present in the sensing area depends on the optical environment, geometry of the obstruction sensing area and intervening obstructions. These factors are taken into account in deciding whether a valid obstruction event is detected. The invention may find particular application in elevator doors, industrial machinery or similar applications.
Abstract:
Linear operator (10) for elevator doors in which the door panels (40, 40') are drawn along by means of a continuous belt (11) supported by two end wheels (12, 13) one of which (13) is connected to the shaft of an electric motor (30) and, by means of a pair of coaxial wheels (14, 15) of different diameters fixed together by an intermediate clutch disk, turns idly on a pin (18) fixed to a supporting arm (43) integral with the door panel (40), one wheel (14) of said pair being in contact with the inner side of one section (11A) of the belt (11) and the other wheel (15) of the pair being in contact with the inner side of the other section (11B) of the belt (11), translating in a direction opposite to that of the other section.