Door coupler and locking device
AssigneeKone Corporation
InventorsFranz Josef Karner, Franz Mittermayr, Rupert Oberleitner
Life of this patent
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Abstract
A door coupler provided with coupling elements actuated by means of a linkage so as to engage a counter element provided on the landing door and a locking hook that has a closed position and a released position. The release of the locking hook from the closed position to the released position is allowed when the coupling element meets the counter element. The locking hook and the coupling elements are disposed at a distance from each other.
Claims9
Door coupler in connection with the car door of an elevator, said door coupler comprising coupling elements movable via a linkage and designed to engage at least one counter element provided on a landing door, said door coupler being associated with a locking hook that has a closed position for preventing movement of the car door and a released position for permitting movement of the car door, wherein the movement of the locking hook from the closed position to the released position being permitted when a coupling element is in contact with a counter element, and wherein an actuating power causing the coupling elements to engage the counter element is obtained from an operating means actuating the doors, characterized in that the door coupler comprises a first part having a plurality of elements forming a unit mounted on a car door, which comprises at least the coupling elements and at least one spring, and a second part having a plurality of elements forming a unit on a base plate mounted vertically above said first part, which comprises at least the locking hook, locking lever, operating lever and the transmission of actuating power from the operating means actuating the doors, and that the first part and the second part are mounted in separation from each other on the car door or at least so as to be movable together with it, and that the door coupler comprises a power transmission element between the first part and the second part, by means of which element a linkage movement occurring in the second part produces a linkage movement in first part, and a second power transmission element, by means of which the linkage movement occurring in the first part produces a movement of the locking hook.
Door coupler as defined in any one of the preceding claims, characterized in that the movement of the operating lever for releasing the locking hook and engaging the counter element is a two-stage movement such that, in the first stage, one of the coupling elements is used to verify whether a counter element is present within reach of the coupling element and, when the coupling element touches a counter element, the locking hook is released and the second stage is made possible, and in the second stage the counter elements are engaged by the coupling elements.
Device for locking a car door of an elevator in connection with a door coupler, said locking device comprising a locking hook that has a closed position for preventing movement of the car door and a released position for permitting movement of the car door, and a linkage actuated by actuating power, wherein the movement of which linkage moves the locking hook from the released position to the closed position and from the closed position to the released position by the action of the actuating power, and wherein when the locking hook is in the closed position and a coupling element of the door coupler meets a counter element, the actuating power obtained from an operating means actuating the doors and acting in the opening direction has the effect of moving the locking hook from the closed position to the released position, and wherein when the coupling element does not meet the counter element, the actuating power has the effect of moving the coupling element, characterized in that the door coupler comprises a first part having a plurality of elements forming a unit, which comprises at least the coupling elements and at least one spring, and a second part having a plurality of elements forming a unit mounted on a base plate on a car door suspension plate vertically above said first part, wherein the second part comprises at least the locking hook, locking lever, operating lever and the transmission of actuating power from the operating means actuating the doors, and that the first part and the second part are mounted separately at a distance from each other on the car door or at least so as to be movable together with the car door, and that the door coupler comprises a power transmission element between the first part and the second part, by means of which a linkage movement occurring in the second part produces a linkage movement in first part, and a second power transmission element, by means of which element the linkage movement occurring in the first part produces a movement of the locking hook.
Dependencies are inferred from the claim text.