Back to results
US 8,540,058 B2Granted
Elevator with a closable opening in a car sill
AssigneeKone Corporation
InventorsAntti Ikonen, Jouni Kalm
Life of this patent
Estimating the term…
Abstract
An elevator in which a first gap between a car sill and a landing sill can be maintained as small as possible except at a space of the car sill which passes over a second connecting element that drives a landing door on a landing. The structure of the elevator is simple, inexpensive and reliable, wherein a second gap of the space required for the connecting element, which gap is larger than the first gap, can be closed and opened.
Claims20
An elevator comprising:
- a car directed to move on a vertical path in a shaft, wherein the car contains
- a first door opening,
- a car door, which is a sliding door that opens and closes the first door opening,
- a car door operator on a top edge of the first door opening for opening and closing the sliding door, the door operator containing a drive motor and a first connection element, and
- a car sill, which contains a car door guide for controlling movement of the car door, and a first front edge, and
- a plurality of landings, at a point where the car is arranged to stop, on each of the landings being
- a second door opening,
- a landing door, which is a sliding door that opens and closes the second door opening,
- a landing sill, which contains a landing door guide for guiding movement of the landing door, and a second front edge, which can be brought opposite and essentially to a same horizontal level as the first front edge of the car sill when the car is at the landing, and
- a landing door operator in a top part of the second door opening, the landing door operator containing a second connecting element, which extends in a horizontal direction over the second front edge of the landing sill into a space in the shaft such that when the first and the second connecting elements are opposite each other the first connecting element and the second connecting element can be coupled to each other for moving the landing door by the drive motor of the car door, wherein
- when the car is at the landing, a first gap of at most 15 mm exists between the first front edge of the car sill and the second front edge of the landing sill, wherein the first gap is uniform along the car sill and the landing sill, except for a space into which the second connecting element in the shaft extends in the horizontal direction;
- the car sill contains an opening, which opening is fitted to allow passage of the car sill over the second connecting element, wherein a second gap left between the landing sill and the car sill along the opening is greater than the first gap, wherein the opening forms a discontinuity to the car still;
- a closing element incorporated in the car sill contains a covering surface essentially a size of the opening and the closing element is movable between an open position, in which the closing element is away from a point of the opening, and a closed position, in which the closing element is at the point of the opening, wherein the covering surface fills the opening such that a third gap between the closing element in the closed position and the second front edge of the landing sill is essentially equal to the first gap, wherein, when the car is at the landing, the first gap remains the same regardless of whether the closing element is in the closed position or in the open position;
- and a turning mechanism for moving the closing element between the open position and the closed position;
- and
- the closing element is rotatably hinged to the car sill so that the closing element is rotatable below a level of a top surface of the car sill.
13 more elements
An elevator comprising:
- a car directed to move on a vertical path in a shaft, wherein the car contains
- a first door opening,
- a car door, which is a sliding door that opens and closes the first door opening,
- a car door operator on a top edge of the first door opening for opening and closing the sliding door, the door operator containing a drive motor and a first connection element, and
- a car sill, which contains a car door guide for controlling movement of the car door, and a first front edge, and
- a plurality of landings, at a point where the car is arranged to stop, on each of the landings being
- a second door opening,
- a landing door, which is a sliding door that opens and closes the second door opening,
- a landing sill, which contains a landing door guide for guiding movement of the landing door, and a second front edge, which can be brought opposite and essentially to a same horizontal level as the first front edge of the car sill when the car is at the landing, and
- a landing door operator in a top part of the second door opening, the landing door operator containing a second connecting element, which extends in a horizontal direction over the second front edge of the landing sill into a space in the shaft such that when the first and the second connecting elements are opposite each other the first connecting element and the second connecting element can be coupled to each other for moving the landing door by the drive motor of the car door, wherein
- when the car is at the landing, a first gap of at most 15 mm exist between the first front edge of the car sill and the second front edge of the landing sill, wherein the first gap is uniform along the car sill and the landing sill, except for a space into which the second connecting element in the shaft extends in the horizontal direction;
- the car sill contains an opening, which opening is fitted to allow passage of the car sill over the second connecting element, wherein a second gap between the landing sill and the car sill along the opening is greater than the first gap, wherein the opening forms a discontinuity in the car still;
- a closing element incorporated in the car sill contains a covering surface of a size essentially that of the opening and the closing element is movable between an open position, in which the closing element is away from a point of the opening, and a closed position, in which the closing element is at the point of the opening, wherein the covering surface fills the opening such that a third gap between the closing element in the closed position and the second front edge of the landing sill is essentially equal to the first gap;
- and a turning mechanism for moving the closing element between the open position and the closed position;
- and
- the closing element is rotatably hinged to the car sill so that the closing element is rotatable below a level of a top surface of the car sill,
- wherein the car contains a footguard, which extends downwards essentially vertically from the first front edge of the car sill and the footguard contains a vertical chute at the point of the opening corresponding to the opening of the car sill, and the opening of the car sill and the chute are fitted to allow passage of the car sill and the footguard over the second connecting element, in which case the second gap left between the landing sill and the car sill at the point of the opening is greater than the first gap.
14 more elements
Dependencies are inferred from the claim text.