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US 12,637,329 B2Granted
Elevator sill clearance protection device and elevator car
AssigneeOtis Elevator Company
InventorXingang Gou
Life of this patent
Estimating the term…
Abstract
An elevator sill clearance protection device includes a baffle plate arranged adjacent to an elevator car door sill and configured to be in a first position when an elevator car door is closed, and to be in a second position when the elevator car door is opened so as to at least partially reduce a clearance between the elevator car door sill and a landing door sill; and an actuator arranged in an elevator car and connected to the baffle plate, the actuator configured to actuate the baffle plate from the first position to the second position when the elevator car door is opened, and return the baffle plate to the first position when the elevator car door is closed.
Claims16
An elevator sill clearance protection device, comprising:
- a baffle plate arranged adjacent to an elevator car door sill and configured to be in a first position when an elevator car door is closed, and to be in a second position when the elevator car door is opened so as to at least partially reduce a clearance between the elevator car door sill and a landing door sill;
- and
- an actuator arranged on an elevator car and connected to the baffle plate, wherein the actuator is configured to actuate the baffle plate from the first position to the second position when the elevator car door is opened, and return the baffle plate to the first position when the elevator car door is closed;
- wherein the baffle plate is sized to reduce the clearance between the elevator car door sill and the landing door sill along a majority of an entire length of the elevator car door sill;
- wherein the baffle plate is arranged below the elevator car door sill and has a pivot shaft, and the baffle plate is pivotable around the pivot shaft to change positions between the first position in which the baffle plate is perpendicular to the elevator car door sill, and the second position in which the baffle plate is parallel to the elevator car door sill;
- wherein the actuator comprises:
- a fixed member mounted on the elevator car and a moving member movably arranged between the fixed member and the baffle plate, wherein when the elevator car door is opened, the fixed member exerts an acting force on the moving member to drive the moving member to move towards the baffle plate and push the baffle plate into the second position;
- and
- a first biasing member arranged between the fixed member and the moving member to provide a first biasing force for biasing the moving member towards the fixed member to drive the baffle plate to return to the first position, wherein the first biasing force is smaller than the acting force;
- a linkage mechanism and a second biasing member, the moving member is connected to the baffle plate through the linkage mechanism, and the second biasing member is connected to the linkage mechanism and the baffle plate to provide a second biasing force for biasing the baffle plate towards the linkage mechanism.
7 more elements
An elevator car, comprising:
- an elevator car body for limiting a space for accommodating an object to be carried, and having an elevator car door for opening or closing an opening leading to the space;
- an elevator car door sill arranged below the elevator car door;
- a baffle plate arranged adjacent to the elevator car door sill and configured to be in a first position when an elevator car door is closed, and to be in a second position when the elevator car door is opened so as to at least partially reduce a clearance between the elevator car door sill and a landing door sill;
- and
- an actuator arranged in the elevator car and connected to the baffle plate, wherein the actuator is configured to actuate the baffle plate from the first position to the second position when the elevator car door is opened, and return the baffle plate to the first position when the elevator car door is closed;
- wherein the baffle plate is sized to reduce the clearance between the elevator car door sill and the landing door sill along a majority of an entire length of the elevator car door sill;
- wherein the actuator comprises:
- a fixed member mounted on the elevator car and a moving member movably arranged between the fixed member and the baffle plate, wherein when the elevator car door is opened, the fixed member exerts an acting force on the moving member to drive the moving member to move towards the baffle plate and push the baffle plate into the second position;
- and
- a first biasing member arranged between the fixed member and the moving member to provide a first biasing force for biasing the moving member towards the fixed member to drive the baffle plate to return to the first position, wherein the first biasing force is smaller than the acting force;
- a linkage mechanism and a second biasing member, the moving member is connected to the baffle plate through the linkage mechanism, and the second biasing member is connected to the linkage mechanism and the baffle plate to provide a second biasing force for biasing the baffle plate towards the linkage mechanism.
8 more elements
Dependencies are inferred from the claim text.