JP6783194B2 - Elevator device - Google Patents

Description

The present invention relates to the structure of a car of an elevator device, and more particularly to a technique applicable to an elevator device provided with an air pressure control device for controlling the air pressure in the car.

Since an elevator is a means of transportation for passengers to move in a closed space, it is required to minimize vibration and noise that cause passengers to feel anxious. Also, from the viewpoint of surrounding comfort, it is desirable that vibration and noise during elevator driving be as small as possible.

On the other hand, with the increase in the construction of skyscrapers, elevators are required to be even faster. As a problem peculiar to a high-speed elevator, there is a so-called wind noise caused by turbulence of air flow and pressure difference around the car caused when the car travels in a hoistway at high speed. It is known that the energy of wind noise increases exponentially with the traveling speed of the elevator, and wind noise countermeasures are an important technology especially for ultra-high-speed elevators for skyscrapers.

As a background technology in this technical field, for example, Japanese Patent Application Laid-Open No. 2003-81561 (Patent Document 1) is available. In this publication, "an elevator having a main rope for suspending a car and a balance weight for ascending and descending in a hoistway, a hoist for winding the main rope, and a pressure control device for controlling the pressure in the car. The car is a car door that opens and closes an entrance / exit, a car sill that is provided on the car floor to guide the movement of the car door, and is provided at the lower end of the car door to be pressurized by the pressure control device. And / or an elevator device comprising: an airtight device that seals a gap between the lower end of the car door and the car sill by a flexible member that elastically deforms in response to decompression. " ..

Japanese Unexamined Patent Publication No. 2003-81561

In a conventional general elevator device, as in Patent Document 1, a flexible member is arranged so as to seal the gap between the lower end of the car door and the car sill, and the flexible member is deformed by a pressure difference. Although a structure that enhances the airtightness in the cab is adopted by making the flexible member, vibration noise due to the vibration of the flexible member due to the inability to obtain uniform deformation in the entire longitudinal direction of the flexible member. It was found that (abnormal sound) may occur.

Therefore, an object of the present invention is to prevent vibration noise caused by non-uniform deformation of the flexible member in an elevator device in which a flexible member which is an airtight device is arranged between the car door and the car floor. The purpose is to provide an elevator device with excellent comfort.

In order to solve the above problems, the present invention comprises a car in which passengers get on and off, an exhaust blower provided on the ceiling of the car and controlling the pressure in the car, and a pair of panel members arranged opposite to each other. A car door that opens and closes the entrance and exit of the car, a car sill that is provided on the car floor of the car and guides the movement of the car door, and a lower end of one of the panel members. A door shoe bracket arranged in a first facing gap formed between the portion and the car floor and guiding the movement of the car door along a guide groove provided in the car sill, and the door shoe bracket. Is arranged in a second facing gap formed between the bracket fixing plate for fixing the car to the car door and the other lower end of the panel member located inside the car and the car floor, and the pressure fluctuates. It is provided with an airtight device that is sealed by a flexible member that elastically deforms in response to the above, and deforms the flexible member in the longitudinal direction in the vicinity of the door shoe bracket and the lower side of the car door of the bracket fixing plate. It is characterized by having a space formed between the pair of panel members from the outside of the car and a plurality of openings formed toward the exhaust blower through the second facing gap to make the air flow substantially uniform. And.

Further, the present invention is configured to include a car for passengers to get on and off, an intake blower provided on the ceiling of the car and controlling the pressure in the car, and a pair of panel members arranged opposite to each other. A car door that opens and closes the entrance and exit of the car, a car sill that is provided on the car floor of the car and guides the movement of the car door, and one lower end of the panel member and the car floor. A door shoe bracket that is arranged in a first facing gap formed between the two and guides the movement of the car door along a guide groove provided in the car sill, and the door shoe bracket are fixed to the car door. It is arranged in a second facing gap formed between the bracket fixing plate to be used, the other lower end of the panel member located inside the car, and the car floor, and elastically deforms in response to pressure fluctuations. An airtight device that is sealed by a flexible member is provided, and an air flow that makes the deformation of the flexible member substantially uniform in the longitudinal direction in the vicinity of the door shoe bracket of the bracket fixing plate and on the lower side of the car door. It is characterized by having a plurality of openings formed from the intake blower toward the outside of the car through the second facing gap and the space formed between the pair of panel members .

According to the present invention, in an elevator device in which a flexible member which is an airtight device is arranged between a car door and a car floor, vibration noise due to non-uniform deformation of the flexible member is prevented and comfortable. It is possible to realize an elevator device with excellent properties.

Issues, configurations, and effects other than those described above will be clarified by the following description of the embodiments.

It is a schematic block diagram of the elevator device which concerns on one Embodiment of this invention. It is a perspective view which shows the appearance of the car 7 in FIG. It is a partial cross-sectional view which shows the lower part of the car door 8 of the car 7 in FIG. It is an enlarged view around the airtight device 24 in FIG. FIG. 3 is a front view (arrow view in the direction of AA') of the panel member 10a in FIG.

Hereinafter, examples of the present invention will be described with reference to the drawings. In each drawing, the same components are designated by the same reference numerals, and the detailed description of overlapping portions will be omitted.

First, the elevator device which is the object of the present invention will be described with reference to FIG. FIG. 1 is a schematic configuration diagram of an elevator device of this embodiment.

In the machine room 2 formed at the top of the hoistway 1, a hoisting machine 3 having a sheave around which a plurality of main ropes 4 are wound is fixed to the floor surface. One end of the main rope 4 extending from the sheave is connected to the upper end of the balanced weight 6 via a warp pulley 5, and the other end of the main rope 4 is connected to the upper part of the car 7. The car 7 is provided with a car door 8 that can be opened and closed. After the car 7 stops on the stop floor, the car door 8 and the landing door 32 are opened, and passengers get on and off the car 7. A plurality of openings 23, which will be described later, are arranged on the lower side of the car door 8.

In this embodiment, as shown in FIG. 1, an example of a traction type elevator in which a machine room is arranged in an upper part of a hoistway will be described, but the scope of application of the present invention is limited to this. The invention also includes a machine room-less type traction type elevator in which a control panel or the like is arranged in a hoistway, a winding body type elevator in which a rope is wound around a winding body (drum), a linear motor type elevator, and the like.

FIG. 2 is a perspective view showing the appearance of the car 7 which is a main part of the elevator device shown in FIG. The car 7 has a car door 8 for an entrance / exit on the front side thereof, and an air pressure control device 9 provided with an intake blower, an exhaust blower, and the like is provided outside the ceiling. When the car 7 moves up and down in the hoistway 1, the air pressure control device 9 controls the intake blower, the exhaust blower, and the like to pressurize and depressurize the inside of the car 7, and changes the air pressure per unit time. The amount is kept constant so that the passengers in the car 7 do not feel uncomfortable due to changes in atmospheric pressure.

The car 7 is provided with a car door 8 that can be opened and closed, and since the car door 8 has a structure that opens and closes while sliding, even when the car door 8 is closed, the car can be opened and closed from the vicinity of the sliding portion. The inside and outside of the 7 are communicated with each other, and the atmospheric pressure control efficiency by the atmospheric pressure control device 9 is lowered. Therefore, the vicinity of the car door 8 in the car 7 has an airtight structure as described below. On the lower side of the car door 8, a plurality of openings 23 extending in the lateral direction of the car door 8 are arranged.

FIG. 3 is a partial cross-sectional view showing the lower part of the car door 8 in the car 7 shown in FIG. In the lower portion between the pair of panel members 10a and 10b arranged to face each other with a predetermined distance, a reinforcing member 11 formed extending to both ends in the width direction of both panel members 10a and 10b, and a reinforcing member 11 A bracket fixing plate 12 extending further downward is sandwiched and fixed by bolts 13 to form a car door 8.

At the lower part of the car door 8, a car floor 14 and a car sill 15 connected to the car floor 14 are arranged. Therefore, a facing gap 16 is formed between the bracket fixing plate 12 and the car sill 15, and a facing gap 17 is formed between the panel member 10b and the car floor 14. The facing gap 16 communicates the space portion 18 formed between the panel members 10a and 10b with the outside of the car 7 on the left side of FIG. On the other hand, the facing gap 17 communicates the space 18 with the inside of the car on the right side of FIG.

At the lower end of the bracket fixing plate 12, the upper end of the door shoe bracket 19 having substantially the same width direction as the bracket fixing plate 12 is fixed by a plurality of bolts 20 provided in the horizontal direction. A door shoe 21 arranged at the lower part of the car door 8 is integrally connected to the lower end portion of the door shoe bracket 19 through the facing gap 16. The door shoe 21 is movably fitted while sliding along a guide groove 22 formed in the car sill 15. In this way, the car door 8 is configured to be openable and closable while the door shoe 21 is guided by the car sill 15 (guide groove 22).

In the bracket fixing plate 12 described above, a plurality of openings 23 are formed in a portion located near the upper portion of the facing gap 16 as described in detail later. The space 18 is communicated with the outside of the car 7 on the left side of FIG. 3 by each opening 23. Further, in the facing gap 17 formed between the lower part of the panel member 10b and the car floor 14, an airtight device 24 capable of sealing the facing gap 17 when the car door 8 is closed is arranged, which will be described in detail later.

FIG. 4 is an enlarged view of the periphery of the airtight device 24 described above. As described above, the lower end of the car door 8 is attached to the lower end of the bracket fixing plate 12 extending to both ends in the substantially width direction of the panel member 10a by a plurality of bolts 20 arranged in the substantially horizontal direction. The door shoe bracket 19 is fixed.

Similar to the bolt 20, a plurality of the above-mentioned openings 23 discrete in the substantially horizontal direction, which is the longitudinal direction thereof, are formed in the vicinity of the door shoe bracket 19 in the bracket fixing plate 12. Each opening 23 is for more positive communication between the outside of the car and the space portion 18 formed between the panel members 10a and 10b. The size, shape, spacing, etc. of the openings 23 are determined so that the mechanical strength of the bracket fixing plate 12 does not significantly decrease due to the formation of the openings 23. In the bracket fixing plate 12, the area dimension in the overall width direction in which each opening 23 is formed is substantially equal to the longitudinal dimension in the airtight device 24. In FIG. 4, the airtight device 24 is shown by the flexible member 25 and the folded portion 31.

Each of these openings 23 is formed discretely at substantially equal intervals along the upper end portion of the door shoe bracket 19 in the bracket fixing plate 12 at a portion preferably located near or near the upper end portion of the door shoe bracket 19. Is desirable. When each opening 23 is formed at such a position, since the lower side of the door shoe bracket 19 is inserted through the facing gap 16, the airflow passing through the facing gap 16 is affected, and finally the airtight device 24 It can be supplemented so as not to adversely affect the operation.

That is, when each opening 23 does not exist, the airflow passing through the facing gap 16 is blocked by the door shoe bracket 19, and the airtight device 24 configured in the facing gap 17 is affected as described later. When each opening 23 is not formed, the airtight device 24 vibrates because it does not deform uniformly in the longitudinal direction due to the influence of wind power or wind speed passing through the facing gap 16, and a vibration sound (abnormal sound) is generated from the vicinity of the same portion. ) Will be generated.

However, as described above, an opening 23 is formed that communicates between the outside of the car 7 and the space portion 18 formed between the panel members 10a and 10b. Therefore, even if the door shoe bracket 19 is present in the facing gap 16, the airtight device 24 (folded portion 31) arranged in the facing gap 17 operates uniformly in the entire width direction due to the air flow passing through the opening 23. As a result, vibration in the same part is suppressed, and the generation of vibration noise (abnormal noise) is prevented.

The lower structure of the car door 8 will be described in detail with reference to FIG. FIG. 5 is a front view (arrow view in the direction of AA') of the panel member 10a. The airtight device 24 extends over the entire width direction of the lower end of the car door 8, and is elastically deformed in response to pressurization and depressurization in the car 7 by the air pressure control device 9 shown in FIG. It includes a flexible member 25 for sealing 17 and a folded-back portion 31 (see FIG. 4). Further, the airtight device 24 has an L-shaped cross-sectional shape and is fixed to the panel member 10b by bolting or the like via a bracket 26 fixed to the inside of the lower end of the panel member 10b.

The flexible member 25 described above has a folded-back portion 31 having a substantially O-shaped cross section in which the folded-back portion is arranged inside the car 7. The folded-back portion 31 having a substantially O-shaped cross section in the flexible member 25 is inside the car 7 on the right side of FIG. 4 in the facing gap 17 formed between the lower portion of the panel member 10b and the car floor 14. Have been placed. The upper end portion of the flexible member 25 has the required mounting strength, but the folded-back portion 31 having a substantially shape-shaped cross section is added in the car 7 by the atmospheric pressure control device 9 shown in FIG. It is formed with flexibility that can be elastically deformed without any trouble in response to pressure and decompression.

When the inside of the car 7 is pressurized by the air pressure control device 9 shown in FIG. 2 with the car door 8 of the car 7 closed, in the facing gap 17 between the flexible member 25 and the car floor 14, An air flow flowing from the inside to the outside of the car 7 is formed. Under the influence of the wind pressure and the wind speed at this time, the open side end portion of the folded-back portion 31 having a substantially O-shaped cross section is widened, the facing gap 17 is closed, and the portion is sealed. After that, due to the differential pressure between the inside and the outside of the car 7, the folded-back portion 31 having a substantially shape-shaped cross section is maintained in the same state, and the airtightness of the facing gap 17 is maintained.

On the other hand, when the inside of the car 7 is depressurized by the air pressure control device 9 shown in FIG. 2, the car is laid from the outside in the facing gap 17 between the folded portion 31 having a substantially O-shaped cross section and the car floor 14 in the flexible member 25. An air flow toward the inside of 7 is formed. At this time, if the opening 23 does not exist, the airflow flowing from the outside of the car 7 is affected by the presence of the door shoe bracket 19 arranged in the facing gap 16, so that the cross section of the flexible member 25 is omitted. Deformation may vary in the longitudinal direction of the character-shaped folded portion 31.

However, as described above, the bracket fixing plate 12 is formed with a plurality of openings 23 at predetermined intervals, and the spaces 18 formed between the outside of the car 7 and the panel members 10a and 10b by the openings 23. Is communicated. Therefore, the airflow that passes through the facing gap 17 from the opening 23 through the space portion 18 without being adversely affected by the door shoe bracket 19 is effectively formed in the entire longitudinal direction of the folded portion 31 having a substantially O-shaped cross section. Will be done.

Therefore, the folded-back portion 31 having a substantially O-shaped cross section receives the wind speed and pressure of the airflow that has passed through the facing gap 17 and flows into the car 7, and has a substantially O-shaped cross section in the flexible member 25. There is no variation in the longitudinal direction of the folded-back portion 31, and the open-side end of the folded-back portion 31 having a substantially O-shaped cross section is widened to close the facing gap 17, and the air flow is stopped. After that, the same state is maintained by the differential pressure between the inside and the outside of the car 7, and the airtightness of the facing gap 17 is maintained.

Moreover, since the bracket fixing plate 12 has a configuration in which a plurality of discrete openings 23 are formed in the lower portion thereof along the longitudinal direction, the mechanical strength of the bracket fixing plate 12 is not lowered. Further, since the opening 23 of the bracket fixing plate 12 is formed in the vicinity of the door shoe bracket 19, the airflow toward the facing gap 17 has a direction that is not much different from that when the airflow is drawn from the facing gap 16. Can be formed.

Therefore, the folded-back portion 31 having a substantially O-shaped cross section in the flexible member 25 of the airtight device 24 has an air flow from the outside to the inside of the car 7 in the same manner as the deformation due to the air flow from the inside of the car 7 to the outside. Can be effectively transformed by. Therefore, there is no bias in the direction of the air flow, and in any case, it is possible to effectively and surely deform the folded-back portion 31 having an abbreviated cross section to obtain a highly reliable sealed structure.

If the size of the opening 23 is too small, the pressure loss becomes large and it becomes difficult to form an air flow. On the other hand, if the size of the opening 23 is too large, the wind passes but the wind speed becomes small and the airtight device 24 is flexible. Since the wind force applied to the sex member 25 becomes small, it is desirable to determine the size, shape, spacing, etc. of the openings 23 in consideration of these.

In the elevator device with an atmospheric pressure control device as shown in FIG. 2, an airtight device 24 is provided to airtightize the car 7 during traveling to control the atmospheric pressure. Since the car door 8 is configured to open and close while sliding, the airtight device 24 cannot have a closed structure during the opening and closing operation of the car door 8 and is in an open state, while it is generated due to a pressure difference during traveling. It is sealed using airflow.

In this type of elevator device with an air pressure control device, the pressure difference between the inside and outside of the car 7 is controlled by the above-mentioned air pressure control device 9 at the maximum speed of the air pressure, so that the airtightness holding force of the airtight device 24 decreases. An facing gap 17 accompanied by an air flow is generated in the same portion, and noise outside the car enters from the facing gap 17, and the noise inside the car 7 increases.

However, according to the present embodiment, as described above, the airflow can be effectively formed through the opening 23 without being affected by the door shoe bracket 19 arranged in the facing gap 16. Therefore, the airtight device 24 arranged in the facing gap 17 is in an airtight state with good responsiveness to atmospheric pressure fluctuations in the car 7, and the airtightness in the car 7 can be easily ensured. Therefore, it is possible to effectively shield the generation of vibration noise (abnormal noise) and the ingress of noise from the outside.

Further, in a desirable embodiment, since a plurality of openings 23 are formed in the lower portion of the bracket fixing plate 12 on the door shoe bracket 19 side, the size, number, spacing, and the like of the openings 23 are adjusted to adjust the size, number, and spacing of the openings 23. Does not reduce strength. Moreover, since the opening 23 can form the airflow toward the facing gap 17 with the same directionality as when the airflow is drawn from the facing gap 16, the cross section of the flexible member 25 of the airtight device 24 The abbreviated folded portion 31 can be effectively and surely deformed to obtain a sealed structure.

On the other hand, although it is conceivable to form an opening in the door shoe bracket 19, the mechanical strength of the door shoe bracket 19 is lowered or other configurations are affected because the door shoe bracket 19 is used in a narrow space. I will end up doing it. On the other hand, when the opening 23 is formed in the lower portion of the bracket fixing plate 12, the same door shoe bracket 19 as before is used, and the door shoe 21 at the lower end of the car door 8 is formed in the car sill 15. It can be moved satisfactorily and surely along the provided guide groove 22, and a highly reliable airtight elevator device can be obtained with a simple configuration.

In this embodiment, as the airtight device 24, the one having the configuration shown in FIGS. 3 and 5 is illustrated, but another configuration is used so as to obtain an airtight structure by utilizing the air flow flowing through the facing gap 17. You can also do it.

As described above, in the elevator device of the present invention, an air flow that makes the deformation of the flexible member 25 in the longitudinal direction substantially uniform is applied to the bracket fixing plate 12 from the outside of the car 7 toward the airtight device 24. An opening 23 for forming the opening 23 is formed.

According to such a configuration, even if the door shoe bracket 19 is arranged in the facing gap 16, a stable air flow can be formed through the opening 23, and the deformation of the flexible member 25 in the longitudinal direction is made substantially uniform. Therefore, vibration noise (abnormal noise) is generated by the vibration of the flexible member 25 due to the inability to obtain uniform deformation in the entire longitudinal direction of the flexible member 25, or from the outside of the car 7. It is possible to reliably prevent noise from entering the inside of the car 7.

Further, in addition to the above-described configuration, the present invention has a plurality of openings 23 discretely arranged on the door shoe bracket 19 side of the bracket fixing plate 12 along the longitudinal direction of the facing gap 16 (the lateral direction of the car door 8). Individually formed.

According to such a configuration, a plurality of openings 23 can be formed along the longitudinal direction of the facing gap 16 without extremely lowering the mechanical strength of the bracket fixing plate 12 by forming the openings 23. The deformation of the flexible member 25 in the longitudinal direction can be made substantially uniform.

Further, in the present invention, in addition to the above-described configuration, the flexible member 25 is assumed to have a folded-back portion 31 having a substantially shape-shaped cross section in which the folded-back portion is arranged inside the car 7.

According to such a configuration, in the elevator device that controls the air pressure in the car 7, the airflow generated for controlling the air pressure in the car 7 is effectively captured, and the cross section is folded back in an abbreviated shape. A sealed state can be obtained by reliably deforming the portion 31.

The present invention is not limited to the above-mentioned examples, and includes various modifications. For example, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to those having all the described configurations. Further, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Further, it is possible to add / delete / replace a part of the configuration of each embodiment with another configuration.

1 ... hoistway, 2 ... machine room, 3 ... hoisting machine, 4 ... main rope, 5 ... warp pulley, 6 ... balanced weight, 7 ... car, 8 ... car door, 9 ... pressure control device, 10a, 10b ... panel member, 11 ... reinforcing member, 12 ... bracket fixing plate, 13 ... bolt, 14 ... car floor, 15 ... car sill, 16 ... (first) facing gap, 17 ... (second) facing gap, 18 ... Space, 19 ... Door shoe bracket, 20 ... Bolt, 21 ... Door shoe, 22 ... Guide groove, 23 ... Opening, 24 ... Airtight device, 25 ... Flexible member, 26 ... Bracket, 31 ... Folded part, 32 ... Landing door.

Claims (6)

The car that passengers get on and off,
An exhaust blower installed on the ceiling of the car and controlling the air pressure inside the car.
A car door that has a pair of panel members arranged facing each other and opens and closes the entrance and exit of the car.
A car sill provided on the car floor of the car and guiding the movement of the car door,
It is arranged in a first facing gap formed between one lower end of the panel member and the car floor, and guides the movement of the car door along a guide groove provided in the car sill. Door shoe bracket and
A bracket fixing plate for fixing the door shoe bracket to the car door,
It is arranged in a second facing gap formed between the other lower end of the panel member located inside the car and the car floor, and is sealed by a flexible member that elastically deforms in response to atmospheric pressure fluctuations. Equipped with an airtight device,
An air flow that makes the deformation of the flexible member substantially uniform in the longitudinal direction is applied between the pair of panel members from the outside of the car to the vicinity of the door shoe bracket of the bracket fixing plate and the lower side of the car door. An elevator device having a plurality of openings formed toward the exhaust blower through the space to be formed and the second facing gap . The elevator device according to claim 1.
The elevator is characterized in that a plurality of the plurality of openings are discretely formed in the vicinity of the door shoe bracket of the bracket fixing plate and on the lower side of the car door along the longitudinal direction of the first facing gap. apparatus. The elevator device according to claim 1 or 2.
The flexible member is an elevator device having a folded-back portion having a substantially shape-shaped cross section in which a folded-back portion is arranged inside the car. The car that passengers get on and off,
An intake blower provided on the ceiling of the car and controlling the air pressure in the car,
A car door that has a pair of panel members arranged facing each other and opens and closes the entrance and exit of the car.
A car sill provided on the car floor of the car and guiding the movement of the car door,
It is arranged in a first facing gap formed between one lower end of the panel member and the car floor, and guides the movement of the car door along a guide groove provided in the car sill. Door shoe bracket and
A bracket fixing plate for fixing the door shoe bracket to the car door,
It is arranged in a second facing gap formed between the other lower end of the panel member located inside the car and the car floor, and is sealed by a flexible member that elastically deforms in response to atmospheric pressure fluctuations. Equipped with an airtight device,
An air flow that makes the deformation of the flexible member in the longitudinal direction substantially uniform is applied to the vicinity of the door shoe bracket of the bracket fixing plate and the lower side of the car door from the intake blower to the second facing gap and the pair. An elevator device characterized by having a plurality of openings formed toward the outside of the car through a space formed between the panel members of the above . The elevator device according to claim 4 .
The elevator is characterized in that a plurality of the plurality of openings are discretely formed in the vicinity of the door shoe bracket of the bracket fixing plate and on the lower side of the car door along the longitudinal direction of the first facing gap. apparatus. The elevator device according to claim 4 or 5 .
The flexible member is an elevator device having a folded-back portion having a substantially shape-shaped cross section in which a folded-back portion is arranged inside the car.

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