CN108495805B - Elevator device - Google Patents
Elevator device Download PDFInfo
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- CN108495805B CN108495805B CN201680079906.4A CN201680079906A CN108495805B CN 108495805 B CN108495805 B CN 108495805B CN 201680079906 A CN201680079906 A CN 201680079906A CN 108495805 B CN108495805 B CN 108495805B
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- car
- flat plate
- elevator
- elevator car
- car door
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/30—Constructional features of doors or gates
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Elevator Door Apparatuses (AREA)
Abstract
The invention provides an elevator device, which can ensure the sealing performance in an elevator car with good responsiveness to the air pressure change in the elevator car and can be realized by a simple structure. The elevator device (1) is provided with an elevator car (2) which is suspended in a lifting channel (21) and ascends and descends, a main sling (24) of a balance weight (26), a windlass (23) which winds up the main sling (24), and an air pressure control device which controls the air pressure in the elevator car (2). The elevator car (2) is provided with a car door (3) for opening and closing an entrance, a car sill (7) provided on a car floor and guiding the movement of the car door (3), and an airtight device (12) for closing a gap between the lower end of the car door (3) and the car sill (7) by a flexible member (13) provided at the lower end of the car door (3) and elastically deformed in accordance with pressurization and/or depressurization controlled by the air pressure control device.
Description
Technical Field
The present invention relates to an elevator apparatus, and more particularly to an elevator apparatus including an elevator car having an airtight structure.
Background
In a long-stroke elevator, an air pressure control device is provided, which controls an intake blower, an exhaust blower, and the like to pressurize and depressurize the elevator car when the elevator car is lifted in a lifting passage, and maintains a constant change amount of the air pressure per unit time, thereby alleviating discomfort given to passengers. In such an elevator, since the air pressure inside the elevator car is changed to be different from the air pressure outside, it is necessary to improve the airtightness of the elevator car.
As a technique for improving the airtightness of an elevator car, a technique described in patent document 1 is known. Patent document 1 discloses an elevator car of an elevator, which includes: a car room having an opening for an entrance on a front surface; a door panel for opening and closing the opening of the car room; and an air pressure control device for controlling the air pressure in the car chamber. Further, the following structures are described: a bracket having a cross-section of 'コ' is provided on a curtain plate and an entrance pillar, a pair of sealing members arranged to face each other are arranged in the bracket, a joint member is provided on a door plate so as to correspond to the bracket, the joint member is held in the bracket at least when the door plate is closed, and the joint member is brought into close contact with one of the pair of sealing members in accordance with a load of air pressure in the car room, thereby closing a gap between an opening of the elevator car and the door plate.
Prior art documents
Patent document
Patent document 1: japanese patent laid-open publication No. 2003-81561
Disclosure of Invention
Problems to be solved by the invention
However, in the elevator apparatus described in patent document 1, the door panel (car door) is moved in a direction orthogonal to the opening and closing direction by pressurization or depressurization in the elevator car by the air pressure control device, so that the seal member as an elastic body is elastically deformed to secure airtightness of the elevator car, and a large force (a change in a high air pressure) is required to move the door panel as a heavy object, thereby possibly reducing responsiveness.
In view of the above, the present invention provides an elevator apparatus that can ensure good sealing performance in an elevator car with respect to pressure fluctuations in the elevator car and can be implemented with a simple structure.
Solution scheme
In order to solve the above problems, an elevator apparatus according to the present invention includes an elevator car lifted and lowered in a hoistway and a main rope suspended from a counterweight, a hoist for winding up the main rope, and an air pressure control device for controlling air pressure in the elevator car, and is characterized in that the elevator car includes a car door for opening and closing an entrance, a car sill provided on a car floor for guiding movement of the car door, and an air-tight device for closing a gap between a lower end of the car door and the car sill by a flexible member provided at a lower end of the car door and elastically deformed in accordance with pressurization and/or depressurization controlled by the air pressure control device.
Effects of the invention
According to the present invention, it is possible to provide an elevator apparatus that can ensure sealing performance in an elevator car with good responsiveness to changes in air pressure in the elevator car and can be implemented with a simple configuration.
Problems, structures, and effects other than those described above will be apparent from the following description of the embodiments.
Drawings
Fig. 1 is an external perspective view of an elevator car as a main part of an elevator apparatus according to embodiment 1 of the present invention.
Fig. 2 is a schematic configuration diagram showing an elevator apparatus to which the present invention is applied.
Fig. 3 is a sectional view showing a lower part of a car door of the elevator car shown in fig. 1.
Fig. 4 is an enlarged view of a lower portion of the car door in fig. 3.
Fig. 5 is an enlarged view of a lower portion of the car door in fig. 3, and is an enlarged view when the pressure is applied to the inside of the elevator car.
Fig. 6 is an enlarged view of a lower portion of a car door in fig. 3, and is an enlarged view when the pressure in the elevator car is reduced.
Fig. 7 is an enlarged view showing a cross section of a lower part of a car door of an elevator car, which is a main part of an elevator apparatus according to embodiment 2 of the present invention.
Fig. 8 is an enlarged view showing a modification of the lower portion of the car door shown in fig. 7.
Fig. 9 is an enlarged view showing a cross section of a lower part of a car door of an elevator car, which is a main part of an elevator apparatus according to embodiment 3 of the present invention.
Fig. 10 is an enlarged view showing a modification of the car door lower portion shown in fig. 9.
Fig. 11 is an enlarged view showing a cross section of a lower part of a car door of an elevator car, which is a main part of an elevator apparatus according to embodiment 4 of the present invention.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Example 1
First, a general structure of an elevator apparatus to which the present invention is applied will be described. As is well known, an elevator apparatus is housed inside a hoistway provided in a building.
Fig. 2 is a schematic configuration diagram showing an elevator apparatus to which the present invention is applied.
In fig. 2, the elevator apparatus 1 is configured such that a hoisting machine 23 is placed in a machine room 22 formed in a ceiling portion of a hoistway 21, and is fixed to a bottom surface of the machine room 22 by a fixing member such as a bolt. In this figure, although not described in detail, the hoist 23 includes a sheave for suspending the plurality of main ropes 24. One end of a main rope 24 extending from the sheave is connected to the upper end of a counterweight 26 via a deflector sheave 25, and the other end is connected to the upper end of the elevator car 2.
Next, the operation of each part during operation of the elevator apparatus 1 will be described.
When the hoist 23 is operated and the sheave is rotated, the main rope 24 suspended from the sheave is moved in the rotation direction of the sheave by friction between the main rope 24 and the sheave at that time. Then, the counterweight 26 and the elevator car 2 move in opposite directions to each other up and down with the movement of the main hoisting rope 24. Although not shown in fig. 2, in order to smoothly raise and lower the elevator car 2, the actual elevator apparatus 1 is configured such that the side surfaces of the elevator car 2 and the counterweight 26 are guided by guide members called guide rails.
In the elevator apparatus 1, a controller, not shown, gives an operation command to a motor, a brake mechanism, and the like constituting the hoisting machine 23, and the elevator car 2 is moved up and down toward a predetermined floor of the building by the operation command. Although the elevator apparatus 1 has been described in the above for simplicity, various components are actually added.
Next, the elevator car 2 will be explained. Fig. 1 is an external perspective view of an elevator car as a main part of an elevator apparatus 1 in the present embodiment.
The elevator car 2 has a car door 3 for an entrance on the front surface side, and an intake blower 4a and an exhaust blower 4b as air pressure control devices are provided on the upper part thereof. The air pressure control device controls the intake blower 4a, the exhaust blower 4b, and the like to pressurize and depressurize the elevator car 2 when the elevator car 2 ascends and descends in the ascending and descending path 21, and keeps the amount of change in air pressure per unit time constant to alleviate discomfort given to passengers.
Since the openable and closable car door 3 is provided in the elevator car 2 as described above, if the inside and outside of the elevator car 2 are easily communicated from the vicinity thereof even in a state where the car door 3 is closed, it becomes a cause of lowering the efficiency of the air pressure control by the air pressure control device. In contrast, an airtight structure is formed in the vicinity of the elevator car 2. Next, this airtight structure will be explained.
Fig. 3 is a sectional view showing a car door lower portion of the elevator car shown in fig. 1, and fig. 4 is an enlarged view of the car door lower portion in fig. 3.
As shown in fig. 3, the car door 3 basically includes panel members 3a and 3b arranged in pairs and a reinforcement member 6 fixed between the panel members 3a and 3b by bolts 5, and ensures necessary strength as the car door 3. The reinforcing members 6 are disposed so as to extend in the depth direction in fig. 3, that is, to both width-direction end portions of the pair of panels 3a and 3b constituting the car door 3. The car doors 3 are guided by car sills 7 provided continuously to the car floor 27 with a predetermined gap from the lower ends of the car doors 3, and are configured to be openable and closable in the horizontal direction shown in fig. 1. As shown in fig. 3, a shoe 10 attached to a bracket 9 coupled by a bolt 8 is provided at a lower portion of the car door 3, and the shoe 10 is fitted with a gap in a guide groove 7a formed in the car sill 7.
The car door 3 is provided with an airtight device 12 capable of closing a gap 11 existing between the lower end of the car door 3 and the car sill 7 when the car door 3 is in a closed state. The airtight device 12 includes, as a main component thereof, a flexible member 13 that extends over the entire width of the lower end of the car door 3 and elastically deforms in accordance with pressurization and depressurization inside the elevator car 2 by the air pressure control device to close the gap 11.
The airtight device 12 includes: a bracket 14 having an L-shaped cross-sectional shape and fixedly provided at the inner lower end of the plate 3 a; a rod 15 disposed on the bracket 14 and perforated; a movable pressure member 16 having an L-shaped cross-sectional shape, having a long hole 16a (fig. 4) through which the rod 15 is inserted, and disposed inside the bracket 14; a pressing member 17 having an L-shaped cross-sectional shape and disposed inside the movable pressing member 16; and a nut 18 screwed to the rod 15 to fix the movable pressure member 16 and the pressure member 17 to the bracket 14. As shown in fig. 3, an elevator car-side end portion of the car sill 7 is fastened or joined to a car floor 27 and a floor 28 disposed above the car floor 27. Although not shown in fig. 3, a decorative plate or the like is provided on the upper surface of the floor panel 28 in consideration of appearance. The car floor 27 is formed of H-shaped steel, and has flat surface portions in the upper and lower directions, and the flat surface portions are supported by support surface portions extending in the vertical direction. All of the four side surfaces of the car floor 27 are formed of H-shaped steel. The H-shaped steels on the left and right end surfaces of the car floor 27 are fitted into the H-shaped steels on the four side surfaces to form a hexahedron.
As shown in fig. 4, the upper horizontal piece 13a of the flexible member 13 is sandwiched between the horizontal piece 16b of the movable pressing member 16 and the horizontal piece 17a of the pressing member 17, and the flexible member 13 is supported by the car door 3.
The flexible member 13 includes: an upper sheet member 13b (first flat plate-like portion) opposed to the horizontal piece 14a of the bracket 14 and arranged with a wedge-shaped gap 19 at least between the upper sheet member and the horizontal piece 14a in a normal state; and a lower thin plate member 13c (second flat plate-like portion) which is arranged to extend from one end of the upper thin plate member 13b (first flat plate-like portion) and is arranged to have a wedge-shaped gap 20 with the upper thin plate member 13b (first flat plate-like portion) at least in a normal state and to have a substantially horizontal gap 11a with the car sill 7 in a normal state. In other words, the flexible member 13 includes an upper sheet member 13b (first flat plate-like portion) having a vertical cross-sectional shape inclined downward toward the inside of the elevator car 2 at least in a normal state, and a lower sheet member 13c (second flat plate-like portion) folded back at a connection portion 13e at an inner end of the elevator car 2 of the upper sheet member 13b (first flat plate-like portion) and directed toward the outside of the elevator car 2. The end of the lower thin plate member 13c (second flat plate-like portion) opposite to the connecting portion 13e, that is, the end facing the outside of the elevator car 2 is not particularly fixed, and constitutes a free end 13 f. Here, the normal state refers to a state in which the pressure in the elevator car 2 is not adjusted, but is not any state in which the pressure in the elevator car 2 is increased or decreased by the air pressure control device having the intake blower 4a and the exhaust blower 4b described above. For example, a state where the elevator car 2 arrives at a desired floor with a hall call and stops, or a state where the elevator car 2 ascends and descends at a relatively low floor in the hoistway 21 corresponds to a normal state.
The flexible member 13 is formed of, for example, natural rubber or synthetic rubber, and the upper horizontal member 13a, the vertical member 13d connecting the upper horizontal member 13a and the upper thin plate member 13b (first flat plate-like portion), the connecting portion 13e folding back the upper thin plate member 13b (first flat plate-like portion), and the lower thin plate member 13c (second flat plate-like portion) are integrated. The upper thin plate member 13b (first flat plate-like portion) and the lower thin plate member 13c (second flat plate-like portion) are set to have a thickness dimension capable of being elastically deformed without hindrance in accordance with pressurization and depressurization inside the elevator car 2 by the air pressure control device. On the other hand, in order to ensure the necessary attachment strength, the upper horizontal portion 13a and the vertical member 13d are set to have a larger thickness dimension than the upper thin plate member 13b (first flat plate-like portion) and the lower thin plate member 13c (second flat plate-like portion). In the present embodiment, the flexible member 13 is formed of natural rubber or synthetic rubber, but the present invention is not limited thereto, and the flexible member 13 may be formed of another flexible material. For example, the metal member may be a resin or a thin plate-like metal member, such as stainless steel having a thickness of 0.2 mm.
Further, as shown in fig. 4, by ensuring a predetermined gap between the horizontal piece 14a of the bracket 14 and the horizontal piece 16b of the movable presser 16 and adjusting the height position of the movable presser 16 via the elongated hole 16a of the movable presser 16, the height dimension of the gap 11a in the normal state existing between the lower thin plate member 13c (second flat plate-like portion) of the flexible member 13 and the car sill 7 can be optimally adjusted. For example, when the outer diameter (diameter) of the elongated hole 16a is D1 and the outer diameter (diameter) of the rod 15 is D2, the relationship between D1 and D2 is preferably in the range of 1.43 ≦ D1/D2 ≦ 2.40, and preferably D1/D2 ≦ 2.00. Thus, the horizontal piece 14a of the bracket 14 can be moved up and down by the amount (D1-D2), and the gap 11a between the lower thin plate piece 13c (second flat plate-like portion) constituting the flexible member 13 and the car sill 7 can be adjusted.
In the case where the air pressure control in the elevator car 2 is performed by the air pressure control device in this state, the airtight structure described above functions as follows.
Fig. 5 is an enlarged view of a lower portion of the car door in fig. 3, and is an enlarged view when the pressure is applied to the inside of the elevator car.
When the inside of the elevator car 2 is pressurized, the air passes through the gap 11a between the lower thin plate member 13c (second flat plate-like portion) of the flexible member 13 and the car sill 7 from the inside of the elevator car 2 toward the outside, and is depressurized by the flow velocity. By this pressure reduction and the wind pressure applied to the wedge-shaped gap 19 existing between the upper sheet member 13b (first flat plate-like portion) and the horizontal piece 14a of the bracket 14, the connection portion 13e between the upper sheet member 13b (first flat plate-like portion) and the lower sheet member 13c (second flat plate-like portion) is first pressed and brought into contact with the car sill 7. After the connection portion 13e abuts against the car sill 7 to close the gap 11a and stop the flow of air, the pressure difference between the inside and the outside of the elevator car 2 applies pressure to the upper surface of the upper sheet member 13b (first flat plate-like portion) to further press the connection portion 13e against the car sill 7, thereby reliably maintaining airtightness.
Fig. 6 is an enlarged view of a lower portion of a car door in fig. 3, and is an enlarged view when the pressure in the elevator car is reduced.
When the interior of the elevator car 2 is depressurized, the air passes through the gap 11a between the lower thin plate member 13c (second flat plate-like portion) of the flexible member 13 and the car sill 7 from the outside toward the interior of the elevator car 2, and is depressurized by the flow velocity. By this decompression and the wind pressure applied to the wedge-shaped gap 20 existing between the upper sheet member 13b (first flat plate-like portion) and the lower sheet member 13c (second flat plate-like portion), the free end 13f of the lower sheet member 13c (second flat plate-like portion) is first pressed down to be in contact with the car sill 7. After the free end 13f abuts against the car sill 7 to close the gap 11a and stop the flow of air, pressure is applied to the upper surface of the lower sheet member 13c (second flat plate-like portion) and the lower surface of the upper sheet member 13b (first flat plate-like portion) by the pressure difference between the inside and the outside of the elevator car 2, and the free end 13f is further pressed against the car sill 7, thereby reliably maintaining airtightness. In this case, fig. 6 shows a state in which the upper surface of the upper sheet member 13b (first flat plate-like portion) is in contact with the lower surface of the horizontal piece 14a of the bracket 14, but the present invention is not necessarily limited thereto. That is, a slight gap may be formed between the upper surface of the upper sheet member 13b (first flat plate-like portion) and the lower surface of the horizontal piece 14a of the bracket 14.
The pressurization in the elevator car 2 or the depressurization in the elevator car 2 shown in fig. 5 or 6 is changed stepwise by the height of the elevator car 2 by, for example, an air pressure control device having an intake blower 4a and an exhaust blower 4b in steps of several numbers hPa per time in the elevator car 2.
As described above, according to the present embodiment, it is possible to provide the elevator apparatus 1 which can ensure the sealing performance in the elevator car 2 with good responsiveness to the pressure fluctuation in the elevator car 2 and can be realized with a simple configuration. The elevator apparatus 1 of the present embodiment includes, as the airtight device 12, a flexible member 13 that extends over the entire width of the lower end of the car door 3 and elastically deforms to close the gap 11 in accordance with the pressure increase and pressure decrease in the elevator car 2 by the air pressure control device. With such a configuration, the airtight device 12 that does not affect the door closing force of the car door 3 and that closes the gap 11 existing in the car door 3 according to the change in the air pressure in the elevator car 2 can be realized with a simple configuration. Further, since the car door 3 is not moved in a direction different from the opening/closing direction as in the conventional art in order to obtain airtightness, airtightness can be obtained only by elastically deforming the flexible member 13, and an extremely simple structure can be provided.
In the elevator apparatus 1 of the present embodiment, the flexible member 13 includes: an upper sheet member 13b (first flat plate-like portion) disposed so as to face the lower end of the car door 3 and the horizontal piece 14a of the bracket 14 and having a wedge-shaped gap 19 at least between the horizontal piece 14a and the upper sheet member 13 b; and a lower sheet member 13c (second flat plate-like portion) arranged to extend from one end of the upper sheet member 13b (first flat plate-like portion) and having a wedge-shaped gap 20 at least between the upper sheet member 13b (first flat plate-like portion) and the car sill 7 at a substantially horizontal gap 11a at least at a normal time. With such a configuration, the flexible member 13 can reliably close the gap 11a with good responsiveness by the pressure reduction and wind pressure in the gap 11a and the pressure difference between the inside and outside of the elevator car 2 according to the operation of the air pressure control device.
Example 2
Fig. 7 is an enlarged view showing a cross section of a car door lower portion of an elevator car as a main portion of an elevator apparatus according to embodiment 2 of the present invention, and fig. 8 is an enlarged view showing a modification of the car door lower portion shown in fig. 7. The present embodiment is different from embodiment 1 in that the structure of the airtight device having the flexible member is simpler than that of embodiment 1 described above. Other configurations are the same as in embodiment 1, and the same components as in embodiment 1 are denoted by the same reference numerals, and redundant description as in embodiment 1 is omitted.
As shown in fig. 7, the elevator apparatus 1 of the present embodiment includes an airtight device 12 having a flexible member 33 at a lower portion of the car door 3. The flexible member 33 includes: an upper horizontal member 33a abutting against the lower surface of the horizontal piece 14a of the bracket 14; an upper sheet member 33b (first flat plate-like portion) arranged to have a wedge-shaped gap 19 at least between the upper horizontal member 33a at normal times; and a lower thin plate member 33c (second flat plate-like portion) which is disposed so as to extend from one end of the upper thin plate member 33b (first flat plate-like portion) and which has a wedge-shaped gap 20 at least with the upper thin plate member 33b (first flat plate-like portion) in a normal state and a substantially horizontal gap with the car sill 7 in a normal state. In other words, the flexible member 33 includes an upper sheet member 33b (first flat plate-like portion) having a vertical cross-sectional shape inclined downward toward the inside of the elevator car 2 at least in a normal state, and a lower sheet member 33c (second flat plate-like portion) folded back at a connecting portion 33d which is an inner end portion of the elevator car 2 of the upper sheet member 33b (first flat plate-like portion) and directed toward the outside of the elevator car 2. The end of the lower sheet member 33c (second flat plate-like portion) on the side opposite to the connection portion 33d does not need to be particularly fixed, and constitutes a free end 33 e.
The flexible member 33 is formed of, for example, resin or a thin plate-like metal member, such as stainless steel having a thickness of 0.2mm, in addition to natural rubber or synthetic rubber. The upper horizontal member 33a, the upper thin plate member 33b (first flat plate-like portion), the connecting portion 33d that folds back the upper thin plate member 33b (first flat plate-like portion), and the lower thin plate member 33c (second flat plate-like portion) are integrally configured. As shown in fig. 7, the thicknesses of the upper horizontal member 33a, the upper thin plate member 33b (first flat plate-like portion), and the lower thin plate member 33c (second flat plate-like portion) are substantially the same, and the upper thin plate member 33b (first flat plate-like portion) and the lower thin plate member 33c (second flat plate-like portion) are set to a thickness dimension that can be elastically deformed without hindrance in accordance with pressurization and depressurization inside the elevator car 2 by the air pressure control device. In contrast, in the flexible member 13 shown in embodiment 1, in order to ensure the necessary attachment strength, the thickness dimensions of the upper horizontal portion 13a and the vertical member 13d are set to be larger than the upper thin plate member 13b (first flat plate-like portion) and the lower thin plate member 13c (second flat plate-like portion). Therefore, in the flexible member 33 of the present embodiment, the thicknesses of the respective constituent members, i.e., the upper horizontal member 33a, the upper thin plate member 33b (first flat plate-like portion), and the lower thin plate member 33c (second flat plate-like portion) are made substantially the same as described above, and thus the flexible member 33 can be more easily formed as compared with embodiment 1.
Further, the contact surface between the upper surface of the upper horizontal member 33a and the lower surface of the horizontal piece 14a of the bracket 14 may be fixed by means of welding, an adhesive, or the like, but in order to prevent the flexible member 33 constituting the airtight device 12 from dropping off by any chance, the upper horizontal member 33a constituting the flexible member 33 and the horizontal piece 14a are fixed as follows. A region having a predetermined width from the inner end of the elevator car 2 of the upper horizontal member 33a is sandwiched between the bracket 34 having an L-shaped cross-sectional shape and the horizontal piece 14a, and a portion of the bracket 34 facing the plate member 3a is fastened by a bolt 35. The airtight device 12 in the present embodiment is constituted only by the above-described flexible member 33, brackets 14, 34, and bolt 35. Therefore, a simpler structure than that of the airtight device shown in embodiment 1 can be realized. Although not shown, it is preferable to attach a decorative plate or the like so as to cover the portion of the bracket 34 facing the plate 3a and the bolt 35 in consideration of appearance or the like.
Next, the operation of the airtight device 12 in the case where the interior of the elevator car 2 is pressurized or depressurized by the air pressure control device from the normal state shown in fig. 7 will be described.
When the interior of the elevator car 2 is pressurized by the air pressure control device having the intake blower 4a and the exhaust blower 4b, air passes through a gap existing between the lower sheet member 33c (second flat plate-like portion) of the flexible member 33 and the car sill 7 from the interior of the elevator car 2 to the outside, and is depressurized by the flow velocity at that time. By this pressure reduction and the wind pressure applied to the wedge-shaped gap 19 existing between the upper sheet member 33b (first flat plate-like portion) and the horizontal member 33a, the connecting portion 33d between the upper sheet member 33b (first flat plate-like portion) and the lower sheet member 33c (second flat plate-like portion) is pressed and brought into contact with the car sill 7. By the contact of the connection portion 33d against the car sill 7, a substantially horizontal gap existing between the lower sheet member 33c (second flat plate-like portion) and the car sill 7 is closed up, and the flow of air from the inside of the elevator car 2 to the outside is stopped, thereby generating a pressure difference between the inside and the outside of the elevator car 2. The pressure difference applies pressure to the upper surface of the upper sheet member 33b (first flat plate-like portion), and the coupling portion 33d is further pressed against the car sill 7, thereby reliably maintaining airtightness.
On the other hand, when the pressure inside the elevator car 2 is reduced by the air pressure control device, air passes from the outside into the elevator car 2 through a gap existing between the lower sheet member 33c (second flat plate-like portion) of the flexible member 33 and the car sill 7, and is reduced in pressure by the flow velocity at that time. By this decompression and the wind pressure applied to the wedge-shaped gap 20 existing between the upper sheet member 33b (first flat plate-like portion) and the lower sheet member 33c (second flat plate-like portion), the free end 33e of the lower sheet member 33c (second flat plate-like portion) is pressed down to abut against the car sill 7. By the abutment of the free end 33e against the car sill 7, a substantially horizontal gap existing between the lower sheet member 33c (second flat plate-like portion) and the car sill 7 is closed, and the flow of air from the outside into the elevator car 2 is stopped, thereby generating a pressure difference between the inside and the outside of the elevator car 2. The pressure difference applies pressure to the lower surface of the upper sheet member 33b (first flat plate-like portion) and the upper surface of the lower sheet member 33c (second flat plate-like portion), and the free end 33e is further pressed against the car sill 7, thereby reliably maintaining airtightness.
Fig. 8 is an enlarged view showing a modification of the lower portion of the car door shown in fig. 7. As shown in fig. 8, the flexible member 33 includes: an upper horizontal member 33a abutting against the lower surface of the horizontal piece 14a of the bracket 14; an upper sheet member 33b (first flat plate-like portion) arranged to have a wedge-shaped gap 20 with the upper horizontal member 33a at least in a normal state; and a lower thin plate member 33c (second flat plate-like portion) which is arranged to extend from one end of the upper thin plate member 33b (first flat plate-like portion) and which has a wedge-shaped gap 19 at least with the upper thin plate member 33b (first flat plate-like portion) at normal times and a substantially horizontal gap with the car sill 7 at normal times. In other words, the flexible member 33 includes an upper sheet member 33b (first flat plate-like portion) having at least a longitudinal cross-sectional shape inclined downward from the inside of the elevator car 2 toward the outside, and a lower sheet member 33c (second flat plate-like portion) folded back at a connection portion 33d, which is the outer end of the elevator car 2 of the upper sheet member 33b (first flat plate-like portion), and directed toward the inside of the elevator car 2. The free end 33e is formed at the end opposite to the connection portion 33d of the lower sheet member 33c (second flat plate-like portion) without being particularly fixed.
As shown in fig. 8, a region of a predetermined width from the outer end of the elevator car 2 of the upper horizontal member 33a is sandwiched between the upper surface of the lower horizontal piece of the cross-sectional "コ" shaped member 36 and the lower surface of the horizontal piece 14a of the bracket 14, and the lower surface of the upper horizontal piece of the cross-sectional "コ" shaped member 36 abuts the upper surface of the horizontal piece 14a of the bracket 14. Further, jack bolts 37 fixed or fastened to the upper surface of the horizontal piece 14a by bolts 38 are provided on the upper surface of the horizontal piece 14a of the bracket 14. The jack bolt 37 presses the upper surface of the upper horizontal piece of the cross-sectional "コ" shaped member 36 with a screw. In this way, the upper horizontal member 33a is held between the horizontal pieces 14a of the bracket 14 by the cross-sectional shape member 36 having the shape of "コ" in which the upper horizontal member 33a and the horizontal pieces 14a of the bracket 14 are fitted by the pressing force of the jack bolt 37. The airtight device 12 shown in fig. 8 is constituted only by the above-described flexible member 33, bracket 14, cross-sectional member 36 shaped like an "コ", jack bolt 37, and bolt 38. Therefore, as in the case of the configuration of fig. 7 described above, a simpler configuration can be realized than the airtight device shown in example 1.
Next, the operation of the airtight device 12 in the case where the interior of the elevator car 2 is pressurized or depressurized by the air pressure control device from the normal state shown in fig. 8 will be described.
When the interior of the elevator car 2 is pressurized by the air pressure control device, air passes from the interior of the elevator car 2 to the outside through a gap existing between the lower sheet member 33c (second flat plate-like portion) of the flexible member 33 and the car sill 7, and is depressurized at a flow velocity at that time. By this decompression and the wind pressure applied to the wedge-shaped gap 19 existing between the upper sheet member 33b (first flat plate-like portion) and the lower sheet member 33c (second flat plate-like portion), the free end 33e of the lower sheet member 33c (second flat plate-like portion) is pressed down to abut against the car sill 7. By the abutment of the free end 33e against the car sill 7, a substantially horizontal gap existing between the lower sheet member 33c (second flat plate-like portion) and the car sill 7 is closed, and the flow of air from the inside of the elevator car 2 to the outside is stopped, thereby generating a pressure difference between the elevator car 2 and the outside. The pressure difference applies pressure to the upper surface of the lower sheet member 33c (second flat plate-like portion), and the free end 33e is further pressed against the car sill 7, thereby reliably maintaining airtightness.
On the other hand, when the pressure inside the elevator car 2 is reduced by the air pressure control device, air passes from the outside into the elevator car 2 through a gap existing between the lower sheet member 33c (second flat plate-like portion) of the flexible member 33 and the car sill 7, and is reduced in pressure by the flow velocity at that time. By this decompression and the wind pressure applied to the wedge-shaped gap 20 existing between the upper horizontal member 33a and the upper thin plate member 33b (first flat plate-like portion), the connecting portion 33d between the upper thin plate member 33b (first flat plate-like portion) and the lower thin plate member 33c (second flat plate-like portion) is pressed and brought into contact with the car sill 7. By the contact of the connection portion 33d against the car sill 7, a substantially horizontal gap existing between the lower sheet member 33c (second flat plate-like portion) and the car sill 7 is closed up, the flow of air from the outside into the elevator car 2 is stopped, and a pressure difference is generated between the inside and the outside of the elevator car 2. The pressure difference applies pressure to the upper surface of the upper sheet member 33b (first flat plate-like portion), and the coupling portion 33d is further pressed against the car sill 7, thereby reliably maintaining airtightness.
As described above, according to the present embodiment, it is possible to provide an elevator apparatus which can ensure sealing performance in the elevator car 2 with good responsiveness to changes in the air pressure in the elevator car 2 and can be realized with a simple configuration.
Further, according to the present embodiment, although the gap between the lower thin plate member 33c (second flat plate-like portion) constituting the flexible member 33 and the car rocker 7 as in the above-described embodiment 1 cannot be adjusted, the upper horizontal member 33a, the upper thin plate member 33b (first flat plate-like portion), and the lower thin plate member 33c (second flat plate-like portion) constituting the flexible member 33 have substantially the same thickness, and therefore, the flexible member 33 can be more easily formed as compared with embodiment 1.
In addition, in the present embodiment, since the airtight device 12 can be constituted only by the flexible member 33, the brackets 14 and 34, and the bolt 35, the airtight device can be realized with a simpler configuration as compared with embodiment 1. Further, since the airtight device 12 can be constituted by only the flexible member 33, the bracket 14, the member 36 having the cross section of "コ", the jack bolt 37, and the bolt 38, the airtight device can be realized with a simpler configuration as compared with example 1.
Example 3
Fig. 9 is an enlarged view showing a cross section of a car door lower portion of an elevator car as a main portion of an elevator apparatus according to embodiment 3 of the present invention, and fig. 10 is an enlarged view showing a modification of the car door lower portion shown in fig. 9. The present embodiment is different from embodiment 2 in that the free end of the lower sheet member (second flat plate-like portion) constituting the flexible member is inclined toward the car sill side. Other structures are the same as those of embodiment 2, and the same components as those of embodiment 2 are denoted by the same reference numerals, and redundant description thereof with respect to embodiment 2 is omitted.
As shown in fig. 9, the elevator apparatus 1 of the present embodiment includes an airtight device 12 having a flexible member 33 at a lower portion of the car door 3. The flexible member 33 includes: an upper horizontal member 33a abutting against the lower surface of the horizontal piece 14a of the bracket 14; an upper sheet member 33b (first flat plate-like portion) arranged to have a wedge-shaped gap 19 at least between the upper horizontal member 33a at normal times; and a lower sheet member 33 c' (second flat plate-like portion) which is disposed so as to extend from one end of the upper sheet member 33b (first flat plate-like portion) and which has a wedge-shaped gap 20 with the upper sheet member 33b (first flat plate-like portion) at least at the time of normal operation. The wedge-shaped gap 20 is larger than the wedge-shaped gap 19. That is, the angle (opening angle) formed by the upper sheet member 33b (first flat plate-like portion) and the lower sheet member 33 c' (second flat plate-like portion) is larger than the angle (opening angle) formed by the upper horizontal member 33a and the upper sheet member 33b (first flat plate-like portion). In other words, the flexible member 33 includes an upper sheet member 33b (first flat plate-like portion) having a longitudinal cross-sectional shape that is inclined downward toward the inside of the elevator car 2 at least in a normal state, and a lower sheet member 33 c' (second dry plate-like portion) that is folded back at a connecting portion 33d that is an inner end portion of the elevator car 2 of the upper sheet member 33b (first flat plate-like portion) and inclined downward toward the outside of the elevator car 2. A free end 33e, which is an end portion of the lower sheet member 33 c' (the second flat plate-like portion) on the opposite side of the coupling portion 33d, is spaced apart from the upper surface of the car sill 7 with a predetermined gap.
The flexible member 33 is formed of, for example, resin or a thin plate-like metal member, such as stainless steel having a thickness of 0.2mm, in addition to natural rubber or synthetic rubber. The upper horizontal member 33a, the upper thin plate member 33b (first flat plate-like portion), the connecting portion 33d that folds back the upper thin plate member 33b (first flat plate-like portion), and the lower thin plate member 33 c' (second flat plate-like portion) are integrally configured. As shown in fig. 9, the thicknesses of the upper horizontal member 33a, the upper thin plate member 33b (first flat plate-like portion), and the lower thin plate member 33 c' (second flat plate-like portion) are substantially the same, and the upper thin plate member 33b (first flat plate-like portion) and the lower thin plate member 33c (second flat plate-like portion) are set to a thickness dimension capable of elastically deforming without hindrance in accordance with pressurization and depressurization inside the elevator car 2 by the air pressure control device.
Further, the fixing of the flexible member 33 to the horizontal piece 14a of the bracket 14 is achieved by a bracket 34 having an L-shaped cross-sectional shape and a bolt 35, as in the above-described embodiment 2. The air sealing device 12 of the present embodiment is constituted only by the flexible member 33, the brackets 14 and 34, and the bolt 35, as in embodiment 2, and can realize a simpler configuration than the air sealing device shown in embodiment 1 described above. Further, as in example 2, it is preferable that a decorative plate or the like is attached so as to cover the portion of the bracket 34 facing the plate 3a and the bolt 35 in consideration of appearance or the like.
As described above, the flexible member 33 of the present embodiment is configured such that the angle (opening angle) formed by the upper sheet member 33b (first flat plate-like portion) and the lower sheet member 33 c' (second flat plate-like portion) is larger than the angle (opening angle) formed by the upper horizontal member 33a and the upper sheet member 33b (first flat plate-like portion), whereby the responsiveness can be further improved as compared with the configuration of embodiment 2 particularly at the time of decompression in the elevator car 2 by the air pressure control device. That is, the free end 33e of the lower sheet member 33c (second flat plate-like portion) can be pressed down more effectively than in example 2 by the wind pressure applied to the wedge-shaped gap 20 existing between the upper sheet member 33b (first flat plate-like portion) and the lower sheet member 33 c' (second flat plate-like portion), and brought into contact with the car sill 7.
Fig. 10 is an enlarged view showing a modification of the car door lower portion shown in fig. 9. As shown in fig. 10, the flexible member 33 includes: an upper horizontal member 33a abutting against the lower surface of the horizontal piece 14a of the bracket 14; an upper sheet member 33b (first flat plate-like portion) arranged to have a wedge-shaped gap 20 with the upper horizontal member 33a at least in a normal state; and a lower sheet member 33 c' (second flat plate-like portion) which is disposed so as to extend from one end of the upper sheet member 33b (first flat plate-like portion) and which has a wedge-shaped gap 19 at least between the upper sheet member 33b (first flat plate-like portion) at normal times. The wedge-shaped gap 19 is larger than the wedge-shaped gap 20. That is, the angle (opening angle) formed by the upper sheet member 33b (first flat plate-like portion) and the lower sheet member 33 c' (second flat plate-like portion) is larger than the angle (opening angle) formed by the upper horizontal member 33a and the upper sheet member 33b (first flat plate-like portion). In other words, the flexible member 33 includes: an upper sheet member 33b (first flat plate-like portion) having a longitudinal cross-sectional shape inclined downward from the inside of the elevator car 2 toward the outside at least in a normal state; and a lower sheet member 33 c' (second flat plate-like portion) that is folded back at a connecting portion 33d, which is an outer end portion of the elevator car 2 of the upper sheet member 33b (first flat plate-like portion), and that is inclined downward toward the inside of the elevator car 2. A free end 33e, which is an end portion of the lower sheet member 33 c' (the second flat plate-like portion) on the opposite side of the connecting portion 33d, is separated from the upper surface of the car sill 7 with a predetermined gap.
Further, the flexible member 33 is fixed to the horizontal piece 14a of the bracket 14 by the member 36 having a cross section of "コ", the jack bolt 37, and the bolt 38, as in the above-described embodiment 2. Like embodiment 2, the air sealing device 12 of the present embodiment is constituted only by the flexible member 33, the bracket 14, the member 36 having the cross section of "コ", the jack bolt 37, and the bolt 38, and therefore can be configured more easily than the air sealing device shown in embodiment 1.
As described above, the flexible member 33 of the present embodiment is configured such that the angle (opening angle) formed by the upper sheet member 33b (first flat plate-like portion) and the lower sheet member 33 c' (second flat plate-like portion) is larger than the angle (opening angle) formed by the upper horizontal member 33a and the upper sheet member 33b (first flat plate-like portion), whereby the responsiveness can be further improved as compared with the configuration of embodiment 2 particularly at the time of pressurization in the elevator car 2 by the air pressure control device. That is, the free end 33e of the lower sheet member 33c (second flat plate-like portion) can be pressed down more effectively than in example 2 by the wind pressure applied to the wedge-shaped gap 19 existing between the upper sheet member 33b (first flat plate-like portion) and the lower sheet member 33 c' (second flat plate-like portion), and brought into contact with the car sill 7.
According to the present embodiment, in addition to the effects of embodiment 2, the airtightness in the elevator car 2 can be ensured with better responsiveness with respect to the pressurization or depressurization in the elevator car 2 by the air pressure control device as compared with the configuration of embodiment 2.
Example 4
Fig. 11 is an enlarged view showing a cross section of a lower part of a car door of an elevator car, which is a main part of an elevator apparatus according to embodiment 4 of the present invention. The present embodiment is different from embodiments 1 to 3 described above in that the flexible member has a simpler shape and the airtight device itself having the flexible member has a simpler structure. Other configurations are the same as those of embodiments 1 to 3 described above, and the same components as those of embodiments 1 to 3 are denoted by the same reference numerals and redundant description thereof is omitted.
As shown in fig. 11, the elevator apparatus 1 of the present embodiment includes an airtight device 12 having a flexible member 43 at a lower portion of the car door 3. The flexible member 43 includes a first sheet member 43a (first flat plate-like portion), a second sheet member 43b (second flat plate-like portion), and a connecting portion that connects one end of the first sheet member 43a (first flat plate-like portion) and one end of the second sheet member 43b (second flat plate-like portion) and is fixed to the lower surface of the horizontal piece 14a of the bracket 14 having the L-shaped cross-sectional shape. The flexible member 43 is formed of, for example, stainless steel having a thickness of 0.2mm, which is a thin plate-like metal member. The first sheet member 43a (first flat plate-like portion), the second sheet member 43b (second flat plate-like portion), and the coupling portion are integrally formed. The bracket 14 is formed of, for example, stainless steel.
The coupling portion of the flexible member 43 is fixed to a substantially central portion of the lower surface of the horizontal piece 14a of the bracket 14 by a known welding method. The welding method is not particularly limited. The first sheet member 43a (first flat plate-like portion) having one end connected to the connecting portion is inclined downward toward the inside of the elevator car 2 at least in a normal state, and the end portion opposite to the connecting portion is separated from the upper surface of the car sill 7 with a predetermined gap. The second sheet member 43b (second flat plate-like portion) having one end connected to the connecting portion is inclined downward toward the outside of the elevator car 2 at least in a normal state, and an end portion on the opposite side to the connecting portion is separated from the upper surface of the car sill 7 with a predetermined gap.
The airtight device 12 in the present embodiment is constituted only by the flexible member 43 and the bracket 14 described above. Therefore, a simpler configuration can be realized than the airtight devices shown in embodiments 1 to 3 described above.
Next, the operation of the airtight device 12 when the pressure in the elevator car 2 is increased or decreased by the air pressure control device from the normal state shown in fig. 11 will be described.
When the interior of the elevator car 2 is pressurized by the air pressure control device having the intake blower 4a and the exhaust blower 4b, air passes from the interior of the elevator car 2 to the outside through a gap existing between the end of the first thin plate member 43a (first flat plate-like portion) of the flexible member 43, which is opposed to the car sill 7, and the end of the second thin plate member 43b (second flat plate-like portion), which is opposed to the car sill 7, and is depressurized by the flow velocity at that time. By this decompression and the wind pressure (indicated by an open arrow in fig. 11) applied to the first sheet member 43a (first flat plate-like portion), the first sheet member 43a (first flat plate-like portion) is rotated with the connecting portion as a fulcrum or the first sheet member 43a (first flat plate-like portion) is pressed as a whole, and an end portion (end portion on the opposite side from the connecting portion) of the first sheet member 43a (first flat plate-like portion) facing the car sill 7 abuts against the car sill 7. When the end portion of the first sheet member 43a (first flat plate-like portion) on the opposite side of the connecting portion is brought into contact with the car sill 7, the gap between the end portion of the first sheet member 43a (first flat plate-like portion) on the opposite side of the connecting portion and the car sill 7 is blocked, and the flow of air from the inside of the elevator car 2 to the outside is stopped, thereby generating a pressure difference between the inside and the outside of the elevator car 2. By this pressure difference, the upper surface of the first sheet member 43a (first flat plate-like portion) is pressed, and the end portion of the first sheet member 43a (first flat plate-like portion) on the opposite side of the connection portion is further pressed against the car rocker 7, thereby reliably maintaining airtightness.
On the other hand, when the interior of the elevator car 2 is depressurized by the air pressure control device, air passes from the outside into the elevator car 2 through a gap existing between the end portion of the first thin plate member 43a (first flat plate-like portion) of the flexible member 43, which is opposed to the car sill 7, and the end portion of the second thin plate member 43b (second flat plate-like portion), which is opposed to the car sill 7, and is depressurized by a flow velocity at that time. By this decompression and the wind pressure (indicated by a black arrow in fig. 11) applied to the second thin plate member 43b (second flat plate-like portion), the second thin plate member 43b (second flat plate-like portion) is rotated with the connecting portion as a fulcrum or the second thin plate member 43b (second flat plate-like portion) is pressed as a whole, and the end portion (end portion on the opposite side from the connecting portion) of the second thin plate member 43b (second flat plate-like portion) facing the car sill 7 abuts against the car sill 7. When the end portion of the second thin plate member 43b (second flat plate-like portion) opposite to the connecting portion is brought into contact with the car sill 7, the gap between the end portion of the second thin plate member 43b (second flat plate-like portion) opposite to the connecting portion and the car sill 7 is closed, and the flow of air from the outside into the elevator car 2 is stopped, thereby generating a pressure difference between the inside and the outside of the elevator car 2. The pressure difference applies pressure to the upper surface of the second sheet member 43b (second flat plate-like portion), and the end portion of the second sheet member 43b (second flat plate-like portion) on the opposite side of the connection portion is further pressed against the car rocker 7, thereby reliably maintaining airtightness.
According to the present embodiment, since the airtight device 12 can be constituted only by the flexible member 43 and the bracket 14, the airtight device can be realized with a simpler configuration than those of embodiments 1 to 3.
In the above-described embodiments 1 to 4, the structure in which the airtight device having the flexible member is disposed at the lower end of the car door 3 and the gap between the lower end of the car door and the car sill is closed by the pressurization and/or depressurization inside the elevator car by the air pressure control device has been described, but the present invention can be similarly applied to the upper end of the car door and the side surface (entrance pillar) of the car door.
The present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments have been described in detail to facilitate understanding of the present invention, but are not necessarily limited to having all of the structures described.
Description of reference numerals:
1: an elevator device; 2: an elevator car; 3: a car door; 3a, 3 b: a plate member; 4 a: an intake air blower (air pressure control device); 4 b: an exhaust blower (air pressure control device); 5: a bolt; 6: a reinforcing member; 7: a car threshold; 7 a: a guide groove; 8: a bolt; 9: a bracket; 10: a slipper; 11: a gap; 11 a: a substantially horizontal gap; 12: an air-tight device; 13: a flexible member; 13 a: an upper horizontal member; 13 b: an upper thin plate member (first flat plate-like portion); 13 c: a lower thin plate member (second flat plate-like portion); 13 d: a vertical member; 13 e: a connecting portion; 13 f: a free end; 14: a bracket; 14 a: a horizontal sheet; 15: a rod member; 16: a movable pressing member; 16 a: a long hole (movable pressing member); 16 b: a horizontal plate (movable pressing member); 17: an extrusion; 17 a: a horizontal piece 17a (pressing member); 18: a nut; 19: a wedge-shaped gap; 20: a wedge-shaped gap; 21: a lifting channel; 22: a machine room; 23: a winch; 24: a main sling; 25: a deflector wheel; 26: a counterweight; 27: a car floor; 28: a floor; 33: a flexible member; 33 a: an upper horizontal member; 33 b: an upper thin plate member (first flat plate-like portion); 33c, 33 c': a lower thin plate member (second flat plate-like portion); 33 d: a connecting portion; 33 e: a free end; 34: a bracket; 35: a bolt; 36: a cross-sectional "コ" shaped member; 37: a jack bolt; 38: a bolt; 43: a flexible member; 43 a: a sheet member (first flat plate-like portion); 43 b: a second thin plate member (second flat plate-like portion).
Claims (11)
1. An elevator device comprises an elevator car lifted in a lifting passage, a main sling of a balance weight, a windlass for rolling up the main sling, and an air pressure control device for controlling air pressure in the elevator car,
the elevator arrangement is characterized in that it is provided with,
the elevator car has a car door for opening and closing an entrance, a car sill provided on a car floor and guiding movement of the car door, and an airtight device for closing a gap between a lower end of the car door and the car sill by a flexible member provided at a lower end of the car door and elastically deformed in accordance with pressurization and/or depressurization controlled by the air pressure control device,
the flexible member is provided at a lower end portion of the car door so as to extend over the entire width direction of the car door, and has a first flat plate-like portion whose longitudinal sectional shape is inclined downward toward the inside of the elevator car, and a second flat plate-like portion which is folded back at an end portion of the first flat plate-like portion and faces the outside of the elevator car.
2. An elevator device comprises an elevator car lifted in a lifting passage, a main sling of a balance weight, a windlass for rolling up the main sling, and an air pressure control device for controlling air pressure in the elevator car,
the elevator arrangement is characterized in that it is provided with,
the elevator car has a car door for opening and closing an entrance, a car sill provided on a car floor and guiding movement of the car door, and an airtight device for closing a gap between a lower end of the car door and the car sill by a flexible member provided at a lower end of the car door and elastically deformed in accordance with pressurization and/or depressurization controlled by the air pressure control device,
the flexible member is provided at a lower end portion of the car door so as to extend over the entire width direction of the car door, and has a first flat plate-like portion having a longitudinal cross-sectional shape that is inclined downward from an inner side of the elevator car toward an outer side, and a second flat plate-like portion that is folded back at an end portion of the first flat plate-like portion and faces an inner side of the elevator car.
3. Elevator arrangement according to claim 1,
the second flat plate-like portion abuts against the car sill in accordance with pressurization and/or depressurization controlled by the air pressure control device, and closes a gap between a lower end of the car door and the car sill.
4. Elevator arrangement according to claim 2,
the second flat plate-like portion abuts against the car sill in accordance with pressurization and/or depressurization controlled by the air pressure control device, and closes a gap between a lower end of the car door and the car sill.
5. Elevator arrangement according to claim 3 or 4,
the second flat plate-like portion is separated from the car sill in a normal state including a state where the elevator car is stopped.
6. Elevator arrangement according to claim 5,
the second flat plate-like portion is located substantially parallel to the car sill.
7. Elevator arrangement according to claim 1 or 3,
the second flat plate-like portion is inclined downward toward the outside of the elevator car.
8. Elevator arrangement according to claim 2 or 4,
the second flat plate-like portion is inclined downward toward the inside of the elevator car.
9. Elevator arrangement according to claim 6,
the first flat plate-like portion has a wedge-shaped clearance at least between the first flat plate-like portion and a lower end of the car door at normal times,
the second flat plate-like portion has a wedge-shaped gap with the first flat plate-like portion at least in a normal state.
10. Elevator arrangement according to claim 9,
the car door is constituted by a pair of panel members,
the airtight device is provided with: a bracket having an L-shaped cross-sectional shape and fixedly provided at an inner lower end of a plate disposed inside the elevator car; a movable pressing member having an L-shaped cross-sectional shape, disposed inside the bracket, and having a long hole through which a rod member can pass; and a pressing member disposed inside the movable pressing member and sandwiching an upper horizontal member continuous with the first flat plate-like portion of the flexible member with the movable pressing member,
the diameter of the long hole is larger than that of the rod piece.
11. Elevator arrangement according to claim 3 or 4,
the flexible member is formed of any one of natural rubber, synthetic rubber, resin, and a thin plate-like metal member.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2016/053619 WO2017138060A1 (en) | 2016-02-08 | 2016-02-08 | Elevator device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108495805A CN108495805A (en) | 2018-09-04 |
| CN108495805B true CN108495805B (en) | 2020-04-07 |
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| CN201680079906.4A Active CN108495805B (en) | 2016-02-08 | 2016-02-08 | Elevator device |
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| JP (1) | JP6602896B2 (en) |
| CN (1) | CN108495805B (en) |
| WO (1) | WO2017138060A1 (en) |
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|---|---|---|---|---|
| JP6933618B2 (en) * | 2018-09-04 | 2021-09-08 | 株式会社日立製作所 | Elevator equipment |
| CN113056433B (en) * | 2018-11-20 | 2022-10-04 | 株式会社日立制作所 | Elevator device and method for assembling elevator device |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2017138060A1 (en) | 2017-08-17 |
| CN108495805A (en) | 2018-09-04 |
| JPWO2017138060A1 (en) | 2018-08-09 |
| JP6602896B2 (en) | 2019-11-06 |
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