CN109110617B - Elevator device - Google Patents

Elevator device Download PDF

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Publication number
CN109110617B
CN109110617B CN201810335407.8A CN201810335407A CN109110617B CN 109110617 B CN109110617 B CN 109110617B CN 201810335407 A CN201810335407 A CN 201810335407A CN 109110617 B CN109110617 B CN 109110617B
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China
Prior art keywords
car
door
air pressure
flexible member
bracket
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CN201810335407.8A
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CN109110617A (en
Inventor
伊藤康司
河村阳右
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Hitachi Ltd
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Hitachi Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02Cages, i.e. cars
    • B66B11/0226Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Elevator Door Apparatuses (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

The present invention provides an elevator device, comprising: a cage for passengers to land; an air pressure control device for controlling the air pressure in the car; a car door having a pair of panel members disposed to face each other and opening and closing an entrance of the car; a car threshold provided on a car floor of the car and guiding movement of the car door; a door shoe bracket that is disposed in a first opposing gap formed between a lower end portion of one of the plate members and a car floor, and guides movement of the car door along a guide groove provided in a car threshold; a bracket fixing plate which fixes the door shoe bracket to the car door; and an air-tight device disposed in a second opposing gap formed between the lower end portion of the other of the plate members located inside the car and the car floor, and sealed by a flexible member that elastically deforms in accordance with a change in air pressure, wherein the bracket fixing plate has an opening, and an air flow that causes substantially the same deformation in the longitudinal direction of the flexible member is formed from the outside of the car toward the air-tight device by the opening.

Description

Elevator device
Technical Field
The present invention relates to a structure of a car of an elevator apparatus, and more particularly to a technique effectively applied to an elevator apparatus including an air pressure control device that controls air pressure in the car.
Background
Since an elevator is a moving mechanism for passengers to move in a closed space, it is required to reduce vibrations and noises, which cause passengers to feel uncomfortable, as much as possible. In addition, from the viewpoint of comfort in the surroundings, it is also desirable to minimize vibration and noise during elevator operation.
On the other hand, with the increase in the construction of super high buildings, further speeding up of elevators is required. As a specific problem of a high-speed elevator, there is a sound generated by disturbance of air flow around the car and pressure difference caused when the car is operating at a high speed in the hoistway, so-called wind noise. It is known that the energy of wind noise increases exponentially with respect to the operating speed of an elevator, and particularly in an ultra-high-speed elevator for an ultra-high-rise building, wind noise countermeasures are an important technique.
As a background art in this field, for example, japanese patent laid-open No. 2003-81561 (patent document 1) is known. This publication describes "an elevator apparatus including: a main hoist rope suspending a car and a counterweight that are lifted and lowered in the hoistway; a hoist that winds up the main hoist rope; and an air pressure control device for controlling air pressure in the car, wherein the car comprises: a car door that opens and closes the doorway; a car threshold provided on a car floor to guide movement of the car door; and an airtight device that seals a gap between the lower end of the car door and the car sill by a flexible member that is provided at the lower end of the car door and elastically deforms in accordance with pressurization and/or depressurization by the air pressure control device.
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
In a conventional general elevator apparatus, as in patent document 1 described above, the following structure is adopted: the flexible member is disposed so as to seal a gap between a lower end of the car door and a car sill, and the flexible member is deformed by a pressure difference, thereby improving airtightness in the car chamber, but the following are known: vibration sound (abnormal sound) is generated by vibration of the flexible member due to the failure to obtain uniform deformation in the entire longitudinal direction of the flexible member.
Therefore, an object of the present invention is to provide an elevator apparatus in which a flexible member as an airtight device is disposed between a car door and a car floor, and which is excellent in comfort while preventing vibration sound caused by uneven deformation of the flexible member.
Means for solving the problems
In order to solve the above problem, the present invention provides an elevator apparatus including: a cage for passengers to land; an air pressure control device for controlling air pressure in the car; a car door configured to have a pair of plate members disposed to face each other and to open and close an entrance of the car; a car threshold provided on a car floor of the car and guiding movement of the car door; a door shoe bracket that is disposed in a first opposing gap formed between a lower end portion of one of the plate members and the car floor, and guides movement of the car door along a guide groove provided in the car threshold; a carriage fixing plate that fixes the door shoe carriage toward the car door; and an air-tight device disposed in a second opposing gap formed between a lower end portion of the other of the plate members located inside the car and the car floor, and sealed by a flexible member that elastically deforms in accordance with a change in air pressure, wherein the bracket fixing plate has an opening, and an air flow that causes substantially the same deformation in the longitudinal direction of the flexible member is formed from the outside of the car toward the air-tight device by the opening.
Further, the present invention provides an elevator apparatus, comprising: a cage for passengers to land; an air pressure control device for controlling air pressure in the car; a car door configured to have a pair of plate members disposed to face each other and to open and close an entrance of the car; a car threshold provided on a car floor of the car and guiding movement of the car door; a door shoe bracket that is disposed in a first opposing gap formed between a lower end portion of one of the plate members and the car floor, and guides movement of the car door along a guide groove provided in the car threshold; a carriage fixing plate that fixes the door shoe carriage toward the car door; and an air-tight device disposed in a second opposing gap formed between a lower end portion of the other of the plate members located inside the car and the car floor, and sealed by a flexible member that elastically deforms in accordance with a change in air pressure, wherein the bracket fixing plate has an opening, and an air flow that causes substantially the same deformation in the longitudinal direction of the flexible member is formed from the inside of the car toward the air-tight device by the opening.
Effects of the invention
According to the present invention, an elevator apparatus can be realized as follows: a flexible member as an airtight device is disposed between the car door and the car floor, and vibration sound caused by uneven deformation of the flexible member is prevented, thereby providing excellent comfort.
Problems, structures, and effects other than those described above will be apparent from the following description of the embodiments.
Drawings
Fig. 1 is a schematic configuration diagram of an elevator apparatus according to an embodiment of the present invention.
Fig. 2 is a perspective view showing an external appearance of the car 7 of fig. 1.
Fig. 3 is a partial sectional view showing a lower portion of the car door 8 of the car 7 of fig. 1.
Fig. 4 is an enlarged view of the periphery of the airtight device 24 of fig. 3.
Fig. 5 is a front view (a-a' direction view) of the plate member 10a of fig. 3.
Description of the reference numerals
1: lifting channel
2: mechanical chamber
3: hoisting machine
4: main sling
5: diverting pulley
6: balancing weight
7: car
8: car door
9: air pressure control device
10a, 10 b: plate member
11: reinforcing member
12: bracket fixing plate
13: bolt
14: car floor
15: car threshold
16: (first) opposed gap
17: (second) opposed gap
18: space part
19: door boot bracket
20: bolt
21: door boots
22: guiding groove
23: opening of the container
24: air-tight device
25: flexible member
26: bracket
31: fold-back part
32: landing door
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same components are denoted by the same reference numerals, and detailed description of overlapping portions will be omitted.
[ example 1 ]
First, an elevator apparatus to which the present invention is directed will be described with reference to fig. 1. Fig. 1 is a schematic configuration diagram of an elevator apparatus according to the present embodiment.
In a machine room 2 formed in the top portion of the hoistway 1, a hoist 3 having a sheave around which a plurality of main ropes 4 are wound is fixed to a floor surface. One end of a main rope 4 extending from the sheave is connected to the upper end of a counterweight 6 via a diverting pulley 5, and the other end of the main rope 4 is connected to the upper part of a car 7. The car 7 is provided with a car door 8 that can be opened and closed, and when the car 7 stops at a landing, the car door 8 and the landing door 32 are opened, and passengers get in and out of the car 7. A plurality of openings 23 described later are disposed on the lower side of the car door 8.
In the present embodiment, as shown in fig. 1, an example of a traction elevator in which a machine room is disposed above a hoistway is used for explanation, but the application range of the present invention is not limited to this, and a traction elevator of a non-machine room type in which a control panel or the like is disposed in a hoistway, a reel elevator in which a rope is wound around a reel (drum), a linear motor elevator, and the like are also included as objects of the present invention.
Fig. 2 is a perspective view showing an external appearance of the car 7 which is a main part of the elevator apparatus shown in fig. 1. The car 7 has a car door 8 for an entrance on the front side, and an air pressure control device 9 including an intake blower, an exhaust blower, and the like is provided outside the ceiling plate. The air pressure control device 9 controls the intake blower, the exhaust blower, and the like to pressurize and depressurize the interior of the car 7 when the car 7 is raised and lowered in the hoistway 1, and keeps the amount of change in air pressure per unit time constant, thereby preventing passengers in the car 7 from feeling uncomfortable due to changes in air pressure.
Since the car 7 is provided with the openable and closable car door 8, and the car door 8 is configured to slide and move to open and close, even when the car door 8 is closed, the inside and the outside of the car 7 communicate with each other from the vicinity of the sliding portion, and the efficiency of the air pressure control by the air pressure control device 9 is lowered. Therefore, the vicinity of the car door 8 of the car 7 is formed in an airtight structure as described below. A plurality of openings 23 extending in the lateral direction of the car door 8 are disposed on the lower side of the car door 8.
Fig. 3 is a partial sectional view showing a lower portion of a car door 8 of the car 7 shown in fig. 1. The car door 8 is configured by sandwiching a reinforcement member 11 formed to extend to both ends in the width direction of the two panel members 10a, 10b and a bracket fixing plate 12 extending to a further lower portion of the reinforcement member 11 between a pair of panel members 10a, 10b disposed to face each other at a predetermined distance, and fixing them with a bolt 13.
A car floor 14 and a car sill 15 connected to the car floor 14 are disposed below the car door 8. Therefore, an opposing gap 16 is formed between the bracket fixing plate 12 and the car sill 15, and an opposing gap 17 is formed between the plate member 10b and the car floor 14. A space 18 formed between the two plate members 10a and 10b communicates with the outside of the car 7 on the left side in fig. 3 through the facing gap 16. On the other hand, the space portion 18 communicates with the interior of the car on the right side in fig. 3 through the facing gap 17.
An upper end of a door shoe bracket 19 having substantially the same width-directional dimension as the bracket fixing plate 12 is fixed to a lower end of the bracket fixing plate 12 by a plurality of bolts 20 provided along the horizontal direction. The door shoe 21 disposed at the lower portion of the car door 8 is integrated with the lower end portion of the door shoe bracket 19 through the opposing gap 16. The door shoe 21 is movably fitted while sliding along a guide groove 22 formed in the car sill 15. Thus, the car door 8 is configured to be able to perform an opening and closing operation while the door shoes 21 are guided by the car sills 15 (guide grooves 22).
In the above-described bracket fixing plate 12, a plurality of openings 23 are formed in a portion located in the vicinity of the upper portion of the facing gap 16, as will be described in detail later. Space 18 communicates with the outside of car 7 on the left side in fig. 3 through openings 23. Further, an airtight device 24 capable of sealing the opposing gap 17 in the closed state of the car door 8 is disposed in the opposing gap 17 formed between the lower portion of the plate member 10b and the car floor 14, as will be described later in detail.
Fig. 4 is an enlarged view of the periphery of the airtight device 24. At the lower portion of the car door 8, a door shoe bracket 19 attached by a plurality of bolts 20 arranged along a substantially horizontal direction is fixed to the lower end portion of the bracket fixing plate 12 extending to substantially both widthwise end portions of the panel member 10a as described above.
A plurality of the above-described openings 23 are formed in the vicinity of the door shoe bracket 19 of the bracket fixing plate 12 so as to be separated in the longitudinal direction, that is, in the substantially horizontal direction, similarly to the bolts 20. Each opening 23 is used to more positively communicate between the outside of the car and the space portion 18 formed between the plate members 10a, 10 b. The size, shape, and interval of the openings 23 are determined so as not to significantly reduce the mechanical strength of the bracket fixing plate 12 due to the formation of the openings 23. In the bracket fixing plate 12, the entire width-direction area in which each opening 23 is formed is substantially equal to the longitudinal direction size of the airtight device 24. In fig. 4, the airtight device 24 is shown by the flexible member 25 and the folded portion 31.
The openings 23 are preferably discretely formed at substantially equal intervals along the upper end portion of the door shoe bracket 19 in the bracket fixing plate 12 in the vicinity of the upper end portion of the door shoe bracket 19 or in a portion located in the vicinity thereof. When the openings 23 are formed at such positions, compensation can be made so that the air flow passing through the opposing gap 16 is not affected by the insertion of the lower side of the door shoe bracket 19 through the opposing gap 16, and eventually the operation of the air-tight device 24 is not adversely affected.
That is, when each opening 23 is not present, the air flow passing through the facing gap 16 is blocked by the door shoe bracket 19, and the air-tight device 24 configured in the facing gap 17 as described later is affected. When the openings 23 are not formed, the air-tight device 24 is not deformed in the longitudinal direction thereof similarly due to the influence of wind force or wind speed passing through the opposing gap 16, and vibration sound (abnormal sound) is generated from the vicinity of the portion.
However, as described above, the opening 23 is formed to communicate between the outside of the car 7 and the space portion 18 formed between the plate members 10a and 10 b. Therefore, even if the door shoe bracket 19 is present in the opposing gap 16, the air-tight device 24 (the folded portion 31) disposed in the opposing gap 17 operates uniformly in the entire width direction thereof by the airflow passing through the opening 23, and the vibration in this portion is suppressed, thereby preventing the generation of vibration sound (abnormal sound).
The construction of the lower portion of the car door 8 is also explained in detail with reference to fig. 5. Fig. 5 is a front view (a-a' direction view) of the plate member 10 a. The air sealing device 24 includes a flexible member 25 and a folded portion 31 that extend over the entire width direction of the lower end of the car door 8, elastically deform in accordance with pressurization and depressurization inside the car 7 by the air pressure control device 9 shown in fig. 2, and seal the opposing gap 17 (see fig. 4). The air sealing device 24 is fixed to the plate member 10b by a bolt or the like via a bracket 26 having an L-shaped cross-sectional shape and fixed to the inner side of the lower end of the plate member 10 b.
The flexible member 25 has a folded portion 31 having a substantially く -shaped cross section, in which a folded portion is disposed inside the car 7. The folded portion 31 of the flexible member 25, which has a substantially く -shaped cross section, is disposed on the right side in fig. 4, i.e., on the inside of the car 7, in the facing gap 17 formed between the lower portion of the plate member 10b and the car floor 14. The upper end portion of the flexible member 25 has a necessary attachment strength, but the folded portion 31 having a substantially く -shaped cross section is formed to have flexibility capable of elastic deformation without hindrance in accordance with pressurization and depressurization of the inside of the car 7 by the air pressure control device 9 shown in fig. 2.
When the inside of the car 7 is pressurized by the air pressure control device 9 shown in fig. 2 in a state where the car doors 8 of the car 7 are closed, an airflow flowing from the inside of the car 7 to the outside is formed in the facing gap 17 between the flexible member 25 and the car floor 14. The open-end portion of the folded portion 31 having a substantially く -shaped cross section is expanded by the wind pressure and the wind speed at this time to close the opposing gap 17, and the portion is in a sealed state. Then, the folded portion 31 having a substantially く -shaped cross section is maintained in this state by a differential pressure between the inside and the outside of the car 7, and the air tightness of the facing gap 17 is maintained.
On the other hand, when the interior of the car 7 is depressurized by the air pressure control device 9 shown in fig. 2, an airflow from the outside toward the inside of the car 7 is formed in the facing gap 17 between the folded portion 31 having a substantially く -shaped cross section of the flexible member 25 and the car floor 14. At this time, in the case where the opening 23 is not present, since the airflow flowing in from the outside of the car 7 is affected by the presence of the door shoe bracket 19 disposed in the opposing gap 16, there is a possibility that the flexible member 25 deforms in the longitudinal direction of the folded portion 31 having a substantially く -shaped cross section.
However, as described above, the bracket fixing plate 12 is formed with the plurality of openings 23 at predetermined intervals, and the space 18 formed between the plate members 10a and 10b communicates with the outside of the car 7 through the openings 23. Therefore, the air flow passing through the space 18 from the opening 23 and through the facing gap 17 is effectively formed in the entire longitudinal direction of the folded portion 31 having a substantially く -shaped cross section without being adversely affected by the door shoe bracket 19.
Therefore, the folded portion 31 having the substantially く -shaped cross section receives the wind speed and the wind pressure of the airflow flowing into the car 7 through the opposing gap 17, and the open-side end portion of the folded portion 31 having the substantially く -shaped cross section of the flexible member 25 is expanded to close the opposing gap 17 without generating variation in the longitudinal direction of the folded portion 31 having the substantially く -shaped cross section, thereby blocking the airflow. Thereafter, this state is maintained by a differential pressure between the inside and the outside of the car 7, and airtightness of the facing gap 17 is maintained.
Further, since the carrier fixing plate 12 is formed with a plurality of discrete openings 23 along the longitudinal direction at the lower portion thereof, the mechanical strength of the carrier fixing plate 12 is not reduced. Further, since the opening 23 is formed in the bracket fixing plate 12 in the vicinity of the door shoe bracket 19, the directivity is not changed much compared to the case where the airflow is introduced from the facing gap 16, and the airflow toward the facing gap 17 can be formed.
Therefore, the folded portion 31 of the flexible member 25 of the airtight device 24, which has a substantially く -shaped cross section, can be effectively deformed by the airflow from the outside to the inside of the car 7, similarly to the deformation caused by the airflow from the inside to the outside of the car 7. Therefore, there is no variation in the directionality of the airflow, and in any case, the folded portion 31 having a substantially く -shaped cross section can be efficiently and reliably deformed, and a highly reliable sealed structure can be obtained.
When the size of the opening 23 is too small, the pressure loss becomes large and it becomes difficult to form an air flow, while when the size of the opening 23 is too large, the wind speed becomes small and the wind force applied to the flexible member 25 of the air sealing device 24 becomes small although wind passes through, and therefore, it is preferable to determine the size, shape, interval, and the like of the opening 23 in consideration of these.
In the elevator apparatus with the air pressure control apparatus of fig. 2, an air-tight device 24 is provided to air-tightly seal the car 7 during operation to perform air pressure control. Since the car doors 8 are configured to slide and perform opening and closing operations, the airtight device 24 cannot form a sealed structure and is in an open state during the opening and closing operations of the car doors 8, and forms a sealed state by an air flow generated by a pressure difference during operation.
In the elevator apparatus with the air pressure control device, since the air pressure control device 9 controls the difference in pressure between the inside and the outside of the car 7 to be small at the maximum speed of the elevator, if the air-tightness holding force of the air-tight device 24 is reduced, the opposing gap 17 with the flow of the air current is generated in this portion, noise outside the car enters from the opposing gap 17, and noise inside the car 7 increases.
However, according to the present embodiment, as described above, the airflow can be efficiently formed through the opening 23 without being affected by the door shoe bracket 19 disposed in the opposing gap 16. Therefore, the airtight device 24 disposed in the opposing gap 17 is in an airtight state with good responsiveness to changes in the air pressure in the car 7, and the airtightness in the car 7 can be easily ensured. Therefore, generation of vibration sound (abnormal sound) or entry of noise from the outside can be effectively shielded.
In the preferred embodiment, a plurality of openings 23 are formed in the lower portion of the bracket fixing plate 12 on the side of the door shoe bracket 19, and the mechanical strength of the bracket fixing plate 12 is not reduced by adjusting the size, number, interval, and the like. Further, since the opening 23 can form the airflow toward the opposing gap 17 with directivity that is not changed much compared to the case where the airflow is introduced from the opposing gap 16, the folded portion 31 having a substantially く -shaped cross section in the flexible member 25 of the air sealing device 24 can be efficiently and reliably deformed, and a sealed structure can be obtained.
On the other hand, it is also conceivable to form an opening in the door shoe bracket 19, but the use in a narrow place such as the facing gap 16 reduces the mechanical strength of the door shoe bracket 19 or affects other structures. In contrast, when the opening 23 is formed in the lower portion of the bracket fixing plate 12, the same door shoe bracket as the conventional one is used as the door shoe bracket 19, and the door shoe 21 at the lower end portion of the car door 8 can be moved satisfactorily and reliably along the guide groove 22 formed in the car sill 15, and a highly reliable airtight elevator apparatus can be obtained with a simple configuration.
In the present embodiment, the air-sealing device having the structure shown in fig. 3 and 5 is exemplified as the air-sealing device 24, but an air-sealing device having another structure for obtaining an air-sealing structure by the air flow flowing through the opposing gap 17 may be used.
As described above, in the elevator apparatus of the present invention, the opening 23 is formed in the bracket fixing plate 12, and the opening 23 is used to form an airflow that causes the deformation of the flexible member 25 in the longitudinal direction to be substantially the same from the outside of the car 7 toward the airtight device 24.
According to such a configuration, even if the door shoe brackets 19 are disposed in the opposing gaps 16, stable airflow can be formed through the openings 23, deformation of the flexible member 25 in the longitudinal direction can be made substantially uniform, and generation of vibration sound (abnormal sound) due to vibration of the flexible member 25 caused by failure to obtain uniform deformation in the entire longitudinal direction of the flexible member 25 or entry of noise from the outside of the car 7 into the inside of the car 7 can be reliably prevented.
In addition to the above-described configuration, in the present invention, a plurality of openings 23 are discretely formed along the longitudinal direction of the facing gap 16 (the short side direction of the car door 8) on the door shoe bracket 19 side of the bracket fixing plate 12.
According to such a configuration, the plurality of openings 23 are formed along the longitudinal direction of the facing gap 16 without extremely reducing the mechanical strength of the bracket fixing plate 12 due to the formation of the openings 23, and the deformation of the flexible member 25 in the longitudinal direction can be made substantially the same.
In addition to the above-described configuration, the present invention is configured such that the flexible member 25 has the folded portion 31 having a substantially く -shaped cross section in which a bent portion is disposed inside the car 7.
With such a configuration, in the elevator apparatus that performs the air pressure control in the car 7, the closed state can be obtained by effectively capturing the airflow generated for performing the air pressure control in the car 7 and reliably deforming the folded portion 31 having a substantially く -shaped cross section.
The present invention is not limited to the above-described embodiments, and various modifications are possible. For example, the above-described embodiments are described in detail to explain the present invention easily and understandably, but are not necessarily limited to having all of the structures described. A part of the structure of one embodiment may be replaced with the structure of another embodiment, and the structure of another embodiment may be added to the structure of one embodiment. Further, other configurations may be added, deleted, and replaced to a part of the configurations of the embodiments.

Claims (8)

1. An elevator device is characterized in that the elevator device comprises a frame,
the elevator device is provided with:
a cage for passengers to land;
an air pressure control device for controlling air pressure in the car;
a car door configured to have a pair of plate members disposed to face each other and to open and close an entrance of the car;
a car threshold provided on a car floor of the car and guiding movement of the car door;
a door shoe bracket that is disposed in a first opposing gap formed between a lower end portion of one of the pair of plate members and the car floor, and guides movement of the car door along a guide groove provided in the car threshold;
a carriage fixing plate that fixes the door shoe carriage toward the car door; and
an air sealing device which is arranged in a second opposite gap formed between the lower end of the other of the pair of plate members, which is a plate member positioned inside the car, and the car floor and is sealed by a flexible member which elastically deforms according to air pressure fluctuation,
the bracket fixing plate has an opening, and an airflow that causes substantially the same deformation of the flexible member in the longitudinal direction is formed from the outside of the car toward the airtight device by the opening.
2. Elevator arrangement according to claim 1,
the plurality of openings are formed discretely in the vicinity of the door shoe bracket of the bracket fixing plate along the longitudinal direction of the first opposing gap.
3. Elevator arrangement according to claim 1 or 2,
the flexible member has a folded portion having a substantially く -shaped cross section, in which a folded portion is disposed on the inner side of the car.
4. Elevator arrangement according to claim 1 or 2,
the air pressure control device is an exhaust blower provided on a ceiling of the car.
5. An elevator device is characterized in that the elevator device comprises a frame,
the elevator device is provided with:
a cage for passengers to land;
an air pressure control device for controlling air pressure in the car;
a car door configured to have a pair of plate members disposed to face each other and to open and close an entrance of the car;
a car threshold provided on a car floor of the car and guiding movement of the car door;
a door shoe bracket that is disposed in a first opposing gap formed between a lower end portion of one of the pair of plate members and the car floor, and guides movement of the car door along a guide groove provided in the car threshold;
a carriage fixing plate that fixes the door shoe carriage toward the car door; and
an air sealing device which is arranged in a second opposite gap formed between the lower end of the other of the pair of plate members, which is a plate member positioned inside the car, and the car floor and is sealed by a flexible member which elastically deforms according to air pressure fluctuation,
the bracket fixing plate has an opening, and an airflow that causes substantially the same deformation of the flexible member in the longitudinal direction is formed from the inside of the car toward the airtight device by the opening.
6. Elevator arrangement according to claim 5,
the plurality of openings are formed discretely in the vicinity of the door shoe bracket of the bracket fixing plate along the longitudinal direction of the first opposing gap.
7. Elevator arrangement according to claim 5 or 6,
the flexible member has a folded portion having a substantially く -shaped cross section, in which a folded portion is disposed on the inner side of the car.
8. Elevator arrangement according to claim 5 or 6,
the air pressure control device is an air inlet blower arranged on the top plate of the car.
CN201810335407.8A 2017-06-26 2018-04-13 Elevator device Active CN109110617B (en)

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JP2017124343A JP6783194B2 (en) 2017-06-26 2017-06-26 Elevator device
JP2017-124343 2017-06-26

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CN109110617B true CN109110617B (en) 2020-10-23

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0353424A1 (en) * 1988-07-25 1990-02-07 Inventio Ag Device to close the clearance between the shaft and the car of a lift installation
JP2006188317A (en) * 2005-01-05 2006-07-20 Toshiba Elevator Co Ltd Elevator
JP2011051772A (en) * 2009-09-04 2011-03-17 Hitachi Ltd Elevator device and its car
WO2012066587A1 (en) * 2010-11-15 2012-05-24 株式会社 日立製作所 Cage door sealing device and elevator device
CN103619747A (en) * 2011-06-23 2014-03-05 三菱电机株式会社 Elevator landing door device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0353424A1 (en) * 1988-07-25 1990-02-07 Inventio Ag Device to close the clearance between the shaft and the car of a lift installation
JP2006188317A (en) * 2005-01-05 2006-07-20 Toshiba Elevator Co Ltd Elevator
JP2011051772A (en) * 2009-09-04 2011-03-17 Hitachi Ltd Elevator device and its car
WO2012066587A1 (en) * 2010-11-15 2012-05-24 株式会社 日立製作所 Cage door sealing device and elevator device
CN103619747A (en) * 2011-06-23 2014-03-05 三菱电机株式会社 Elevator landing door device

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JP2019006563A (en) 2019-01-17
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