JP4748615B2 - Elevator equipment - Google Patents

Description

  The present invention relates to an elevator apparatus provided with an airflow generation device.

  The elevator car is suspended from the hoisting machine via a rope, and moves up and down in the hoistway by the rotation of the hoisting machine. When the car reaches the landing on each floor, the car door engages with the landing door provided at the landing and opens and closes.

  Usually, the clearance between the car-side threshold and the landing-side threshold is designed to be about 30 mm. By making this gap as small as possible, an object is prevented from falling into the hoistway. In addition, plate-like face plates are respectively attached under the platform and the landing, and the distance between the face plates is designed to be as small as possible to prevent dropping.

  By the way, since the hoistway has a structure of pulling out from the lowest floor to the uppermost floor of the building, upward airflow is often generated in the structure.

  If an updraft is generated in the hoistway, when the car reaches the landing on each floor and opens and closes the door, an air escape space is created and the updraft flows there. At that time, the rising airflow speeds up into the gap between the car-side face plate and the landing-side faceplate, and noise such as whistling noise is generated. In addition, the rising air current blown out between the face plates hits passengers entering and leaving the landing and gives unpleasant feeling.

  On the other hand, even when the car is running, when the car reaches the landing, the airflow accelerates and flows into the gap between the car-side face plate and the landing-side face plate. Turbulence is generated. Due to this turbulent airflow, the car door and the landing door are vibrated and noise is generated. In addition, pressure fluctuations may occur and so-called “buffing” aerodynamic noise may occur.

For such noise problems, for example, measures are taken such as making the door a sound-insulating structure or sealing the door gap. Also, in order to prevent turbulence around the car as much as possible, measures are taken such as providing a large number of through holes for ventilation in the face plate and attaching a wind regulation cover to the tip of the car (for example, Patent Document 1).
JP-A-4-333486

  However, the structural improvements to the doors and the car as described above are costly and may not be applied depending on the size restrictions of the hoistway. Furthermore, in the current situation where the speed of elevators is increasing and comfort is increasingly required, such structural improvements alone can effectively reduce noise caused by airflow turbulence during car operation. I can't do it.

  The present invention has been made in view of the above points, and provides an elevator apparatus that can effectively reduce noise caused by airflow turbulence during operation of a car without structural improvements. For the purpose.

The elevator apparatus of the present invention is provided in the car that moves up and down in the hoistway, the car door that opens and closes when landing on the landing on each floor, and the landing on each floor, A landing door that opens and closes by engaging with the car door, a plurality of airflow generators that are installed at the lower part of the car door or at the lower part of the landing door, and generate airflow in one direction, and the operating state of the car Drive control means for selectively driving each of the airflow generation devices according to the above , and when the car is traveling, the airflow is appropriately generated in the upward or downward direction of the car. The airflow generator is selectively driven, and when the car door and the landing door are opened and closed, the airflow generator is driven in such a direction that the airflow generation direction is the downward direction of the car. Characterized in that it.

  According to the present invention, a plurality of airflow generators are installed in the vicinity of the car door or the landing door, and each airflow generator is selectively driven in accordance with the operating state of the car. Without any significant improvement, it is possible to effectively reduce the noise caused by the turbulence of the airflow during operation.

  Embodiments of the present invention will be described below with reference to the drawings.

  First, the structure of the airflow generator applied to the elevator apparatus of this invention is demonstrated. In addition, as an airflow generation device, there are a device for injecting a two-dimensional jet from a blower, a device using a synthetic jet, etc., but considering the downsizing and controllability of the device, an airflow generation device using discharge plasma is used. It is considered optimal.

FIG. 1 is a diagram showing a configuration of a plasma airflow generator.
The airflow generation device 10 includes a first electrode 12 on the front surface side of a dielectric barrier 11, which is a sheet-like non-conductor, and a second electrode 13 on the back surface side. Is connected to an AC power supply 14. Here, when an AC voltage is applied between the electrodes 12 and 13 from the AC power supply 14, a sheet-like plasma 15 is generated on the surface of the dielectric barrier 11. The plasma 15 generates an induced jet 16 that flows in one direction. The amount of the induced jet 16 generated is adjusted by controlling the voltage value applied between the electrodes 12 and 13.

FIG. 2 shows another example of the airflow generation device using a blower.
This airflow generation device 20 is obtained by notching a part of a wall surface 21, attaching a guide plate 22 to the notch 21a, and installing a blower 23 on the back surface. When the blower 23 is driven, the wind 24 blown from the blower hits the guide plate 22 and flows in one direction as the guide jet 25. The amount of the induced jet 25 generated is adjusted by power control of a motor that rotates the blower 23.

  Below, the case where the plasma airflow generator shown in FIG. 1 is applied to an elevator apparatus will be described as an example.

(First embodiment)
FIG. 3 is a diagram showing the configuration of the elevator apparatus according to the first embodiment of the present invention. FIG. 3 (a) is a front view of a car of the elevator apparatus, and FIG. It is the figure which looked at the car from the side.

  The elevator apparatus according to the present embodiment includes a passenger car 111 installed in the hoistway 110. The car 111 moves up and down in the hoistway 110 via a rope 112 by driving a hoisting machine (not shown). A car door 113 is provided in front of the car 111 so as to be slidable on the sill 114 in the horizontal direction.

  A plate-like face plate 115 having a predetermined length is attached to the lower part of the sill 114 of the car door 113 in the downward direction. The face plate 115 is commonly called “apron” and is used as a fall prevention plate.

  On the other hand, on the platform 120 side of each floor of the hoistway 110, a platform door 121 is provided slidably on the sill 122 in the horizontal direction. This landing door 121 is opened and closed by engaging with the car door 113 when the car 111 stops on each floor. A plate-like face plate 123 having a predetermined length is attached to the lower part of the sill 124 of the landing door 121 so as to face the car-side face plate 115 in the downward direction.

  Reference numeral 124 in the figure denotes the rising air current generated in the hoistway 110. During the operation of the car 111, the following problems occur due to the rising airflow 124.

(A) During door opening and closing As shown in FIG. 4, when the car 111 is landed at the landing 120 on each floor, a gap is formed between the car-side face plate 115 and the landing-side face plate 123. Here, when the doors 113 and 121 are opened and closed, an air escape space can be created, and a part 124a of the ascending airflow 124 generated in the hoistway 110 flows into the accelerating passage 110 at an increased speed. Such noise is generated. Further, the ascending airflow 124b blown out from the gap between the face plates 115 and 123 strikes passengers entering and exiting the car 111 and gives discomfort.

(B) During traveling Now, assume that the car 111 is descending.
As shown in FIG. 5, when the car 111 descends, a gap is formed between the car-side face plate 115 and the landing-side face plate 123 when the car 111 passes near the landing 120. . The airflow 125 that has circulated from the lower end of the car 111 flows into the gap at an increased speed, and is generated as turbulence 126 near the doors 113 and 121.

  This turbulent air flow 126 becomes an aerodynamic excitation force and vibrates the doors 113 and 121 to generate noise. In addition, pressure fluctuations may occur and so-called “buffing” aerodynamic noise may occur.

  The same applies when the car 11 is raised. In this case, turbulent airflow is generated by increasing the speed of the airflow that has circulated from the upper end of the car 111 into the gap between the car-side face plate 115 and the landing-side faceplate 123.

  In general, turbulence is more likely to occur when the car 111 is lowered than when the car 111 is raised. This is because the car 111 moves toward the ascending airflow 124 generated in the hoistway 110 when descending, and therefore there is a large amount of airflow coming from the lower end of the car 111 to the front of the door.

  In order to solve such a noise problem, a plurality of airflow generators 10a, 10b, 10c... Are provided on the surface of the car-side face plate 115 facing the landing side. These airflow generators 10a, 10b, 10c,... Have a structure as shown in FIG. 1, and by applying a voltage between the electrodes 12 and 13, the action of the plasma 15 causes the induced jet 16 to flow in one direction. appear.

  Here, in the first embodiment, as shown in FIG. 3 (a), twelve airflow generators 10a, 10b, 10c,... 111 are arranged alternately in the descending direction and the ascending direction. These air flow generation devices 10 are configured with a module structure based on an insulator such as ceramic, and the module portion is fixed to the face plate 115 with screws or an adhesive.

  Next, with reference to FIG. 6 and FIG. 7, the drive method of the airflow generators 10a, 10b, 10c.

  FIG. 6 is a block diagram showing the configuration of the control system of the airflow generators 10a, 10b, 10c.

  The elevator control device 30 is installed in a machine room of a building or the like. The control device 30 is configured by a computer having a CPU, ROM, RAM, and the like, and controls the operation of the entire elevator by starting a predetermined program. Here, the opening / closing control of the car door 113 and the airflow generation devices 10a and 10b are performed. , 10c...

  The car position detection device 31 detects the position of the car 111 in the hoistway 110 in real time based on a pulse signal output in synchronization with the rotation of the hoisting machine from a pulse encoder (not shown).

  The door drive device 32 opens a car door 113 by driving a door motor (not shown) in accordance with a drive instruction from the control device 30. Note that a door motor as a drive source is on the car door 113 side, and the landing door 121 is engaged with the car door 113 to open and close.

  The airflow drive device 33 drives the airflow generation devices 10a, 10b, 10c,... According to a drive instruction from the control device 30. The airflow driving device 33 includes a battery for supplying electric power necessary for driving the airflow generating devices 10a, 10b, 10c.

  Here, when the airflow generation devices 10a, 10b, 10c... Are divided into the A group and the B group according to the direction of the airflow generation direction, the airflow driving device 33 generates these airflows according to the operating state of the car 111. The devices 10a, 10b, 10c... Are driven individually in the A group and the B group.

  In addition, the driving | running state of the passenger car 111 shall include the state which stops on each floor and opens and closes a door other than a descent | fall operation and a raise operation | movement. Further, the A group includes the airflow generation devices 10 a to 10 c and 10 d to 10 f that generate the induced jet 16 in the upward direction of the car 111. The B group includes air flow generators 10g to 10i and 10j to 10l that generate the induced jet 16 in the downward direction of the car 111.

  These are arranged in a row on the face plate 115 in the front view of the car in FIG. 3A. From the right, “air flow generators 10a to 10c” and “air flow generators 10g to 10i” are arranged. , “Airflow generators 10d to 10f”, “airflow generators 10j to 10l”, and the like.

  FIG. 7 is a flowchart showing drive control of the airflow generation devices 10a, 10b, 10c.

  The car 111 installed in the hoistway 110 moves to the target floor in response to the hall call or car call. The “call to hall” is a call signal registered by operating a hall call button (not shown) installed at a hall on each floor, and includes information on a registered floor and a destination direction. The “car call” is a call signal registered by operating an unillustrated destination call button provided in the car room, and includes destination floor information.

  When the car position detection device 31 detects that the car 111 has landed on the destination floor, the control device 30 opens and closes the car door 113 through the door driving device 32. In conjunction with the opening / closing operation of the car door 113, the landing door 121 provided in the landing 120 of the floor is also opened / closed.

  Here, when the car door 113 and the landing door 121 are being opened and closed (Yes in step S11), the control device 30 drives the airflow generation devices 10g to 10i and 10j to 10l belonging to the B group through the airflow drive device 33. The guide jet 16 is generated in the downward direction of the car 111 (step S13). As a result, the rising airflow 124a that flows into the gap between the face plates 115 and 123 during the opening and closing of the door can be blocked to prevent the generation of whistling noises and wind hitting the passengers.

  On the other hand, when the car 111 is traveling, the following drive control is performed according to the driving direction at that time.

  That is, when the car 111 is traveling in the downward direction (Yes in step S12), the control device 30 drives the airflow generators 10a to 10c and 10d to 10f belonging to the A group, and the car 111 is driven. Is generated in the upward direction (step S14).

  As shown in FIG. 8A, when the car 111 is lowered, an airflow 125 circulated from the lower end of the car 111 to the front of the door is between the car-side face plate 115 and the landing-side face plate 123. It speeds up and flows into the formed gap. In particular, when the car 111 is lowered, it is affected by the ascending airflow 124, so that the airflow 125 further increases and flows in.

  Here, by sending the induced jet 16 from the airflow generators 10a to 10c and 10d to 10f into the gap between the face plates 115 and 123, the speed of the airflow 125 flowing into the faceplates 115 and 123 is suppressed, and the car 111 is smoothly moved. It is possible to flow toward the upper end of As a result, turbulence generated in the vicinity of the doors 113 and 121 is alleviated, and generation of door noise and aerodynamic noise (buff sound) can be prevented.

  Further, when the car 111 is traveling in the upward direction (No in step S12), the control device 30 drives the airflow generators 10g to 10i and 10j to 10l belonging to the B group, and the car 111 is driven. The induced jet 16 is generated in the descending direction (step S15).

  As shown in FIG. 8 (b), when the car 111 is raised, an airflow 127 that circulates from the upper end of the car 111 to the front of the door is between the car-side face plate 115 and the landing-side face plate 123. It speeds up and flows into the formed gap.

  Here, in the same manner as when the car 111 is lowered, the induced jet 16 is sent from the airflow generators 10g to 10i and 10j to 10l into the gap between the face plates 115 and 123, so that the airflow 127 flowing into the airflow 127 The speed increase is suppressed, and the car can flow smoothly toward the lower end of the car 111. As a result, turbulence generated in the vicinity of the doors 113 and 121 is alleviated, and generation of door noise and aerodynamic noise (buff sound) can be prevented.

  In this way, a plurality of airflow generators 10 a, 10 b, 10 c... Are installed on the car-side face plate 115 while changing the direction of the airflow generation direction, and these are selectively selected according to the operating state of the car 111. By driving, it is possible to effectively reduce noise generated when the door is opened and closed and during traveling.

  In the first embodiment, a plurality of airflow generators 10a, 10b, 10c,... Are installed on the car side, but may be installed on the landing side. FIG. 9 shows an example of installation on the landing side. In this case, a plurality of airflow generation devices 10a, 10b, 10c,... Are arranged on the landing-side face plate 123 while changing the direction of the airflow generation direction. Even if it is such a structure, the same effect as the above is acquired. However, since installing the airflow generators 10a, 10b, 10c,... At all the halls 120 on each floor has a cost problem, for example, it is preferable that the airflow generators 10a, 10b, 10c,.

  Further, the airflow generators 10a, 10b, 10c,... May be driven when the car 111 passes through the landing 120 on each floor based on the car position information detected by the car position detecting device 31. In this way, power consumption can be saved.

(Second Embodiment)
Next, a second embodiment of the present invention will be described.

  In the second embodiment, the arrangement of the airflow generators 10a, 10b, 10c,... Is different from that of the first embodiment, and the airflow generation directions are arranged in different directions.

  FIG. 10 is a view showing a configuration of a landing door viewed from the hoistway side of the elevator apparatus according to the second embodiment of the present invention. Although only the configuration of the landing door is shown here, the overall configuration of the car and the like is the same as that shown in FIG. 3 except for the installation location of the airflow generator, and is omitted here.

  In the second embodiment, a plurality of air currents are generated on the surface of the floor-side faceplate 123 (opposite surface to the car 111) on the X floor for a floor (referred to as the X floor) where noise is intense among the floors. Generators 10a, 10b, 10c... Are installed.

  Here, the airflow generators 10a, 10b, 10c,... Are arranged in different directions so as to generate the induced jet 16 in each direction including at least the upward direction and the downward direction of the car 111. Specifically, as in the example of FIG. 10, they are arranged in an arc shape so as to generate the induction jets 16 radially with the airflow generation direction outward.

  Further, a high-performance microphone 34 is installed on the same plane as these air flow generation devices 10a, 10b, 10c,..., And the noise around the door is measured through the microphone 34.

  Next, with reference to FIG. 11 thru | or FIG. 13, the drive method of the airflow generator 10a, 10b, 10c ... arrange | positioned toward each direction is demonstrated.

  FIG. 11 is a block diagram showing the configuration of the control system of the airflow generators 10a, 10b, 10c... In the second embodiment. In FIG. 11, the same parts as those in FIG. 6 in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the second embodiment, a microphone 34 and a storage device 35 are connected to the control device 30. The microphone 34 measures the noise level around the door and outputs the measurement signal to the control device 30.

  The storage device 35 is provided with a drive pattern storage unit 35a, a setting pattern storage unit 35b, and a noise storage unit 35c. A plurality of patterns for driving the airflow generation devices 10a, 10b, 10c... Are stored in advance in the drive pattern storage unit 35a. The setting pattern storage unit 35b stores an optimal pattern selected from these patterns. The noise level measured through the microphone 34 is stored in the noise storage unit 35c.

  FIG. 12 is a diagram illustrating an example of a drive pattern storage unit 35 a provided in the storage device 35. The drive pattern storage unit 35a stores a plurality of patterns 1, 2, 3,... For driving the airflow generators 10a, 10b, 10c.

  If the identifiers of the airflow generators 10a, 10b, 10c... Are represented by D1 to D8, for example, the patterns 1, 2, 3,. “MAX” means that the airflow generator is driven at the maximum level, and “MIN” means that the airflow generator is driven at the minimum level.

Pattern 1: Drive D1 with MAX and D2-D8 with MIN
Pattern 2: Drive D1 with MIN, D2 with MAX, D3 to D8 with MIN. Pattern 3: Drive D1 and D2 with MIN, D3 with MAX, and D4 to D8 with MIN.

  In such a configuration, when the passenger car 111 passes through the hall 120 on the X floor, the air flow generators 10a, 10b, 10c,... Are driven to generate the induced jet 16 from each direction. At that time, the drive pattern having the most noise reduction effect is finally used by changing the drive pattern of the airflow generation devices 10a, 10b, 10c.

Specifically, the following processing is performed.
FIG. 13 is a flowchart showing drive pattern selection processing of the airflow generation devices 10a, 10b, 10c... By the control device 30 in the second embodiment.

  Now, it is assumed that the car 111 passes through the hall 120 on the X floor while traveling in the upward or downward direction. As shown in FIG. 10, a plurality of air flow generators 10a, 10b, 10c,...

  Here, when the car 111 passes through the X floor hall 120, the control device 30 first drives the airflow generation devices 10a, 10b, 10c,... With the pattern 1 stored in the drive pattern storage unit 35a ( Step S21). In this case, as shown in FIG. 12, in pattern 1, the amount of the induced jet 16 generated in the upward direction of the car 111 from the airflow generation device 10a with the identifier D1 is set to be the largest. The control device 30 measures the noise level around the door at this time with the microphone 34, and stores the result in the noise storage unit 35c (step S22).

  Next, when the car 111 passes through the X floor hall 120 again, the control device 30 drives the air flow generation devices 10a, 10b, 10c,... With the pattern 2 stored in the drive pattern storage unit 35a (step S23). ). And the control apparatus 30 measures the noise level at this time with the microphone 34, and hold | maintains the result in the noise memory | storage part 35c (step S24).

  In this way, every time the car 111 passes through the X floor hall 120, the driving pattern of the airflow generators 10a, 10b, 10c,... Is changed, and the noise level around the door at that time is measured. Then, when the measurement results for the preset number of times are stored in the noise storage unit 35c, the control device 30 selects the pattern having the lowest noise level from among the patterns as the pattern having the most noise reduction effect ( In step S25), this is stored as an optimum pattern in the setting pattern storage unit 35b (step S26).

  Thereafter, when the car 111 passes through the hall 120 on the X floor, the control device 30 drives the airflow generation devices 10a, 10b, 10c,... With the optimum pattern stored in the setting pattern storage unit 35b.

  The drive pattern selection process shown in FIG. 13 may be executed periodically, for example, on a monthly basis, or at an arbitrary timing by setting a pattern selection mode by operating a switch (not shown). You may do it.

  As described above, a plurality of airflow generation devices 10a, 10b, 10c,... Are installed on the landing-side face plate 123 while changing the direction of the airflow generation direction, and these are selectively driven in a plurality of preset patterns. By finally using the most effective noise reduction pattern among them, it is possible to effectively reduce door noise and aerodynamic noise (buff noise) generated when the car 111 passes the landing 120. .

  When the car 111 is landed at the hall 120 on the X floor and opens and closes the door, the airflow generating apparatus in which the airflow generating direction is installed in the descending direction of the car 111 in the airflow generating apparatuses 10a, 10b, 10c. Shall be used.

  That is, in the example of FIG. 10, when the car 111 is landed at the hall 120 on the X floor and opens and closes the door, the control device 30 passes through the airflow driving device 33 and the airflow generation device 10 e or the airflow generation devices 10 d to 10 d. 10f is driven. As a result, as in the first embodiment, the inflow of the rising airflow between the face plates 115 and 123 can be blocked, the whistling noise can be prevented, and the car 111 is moved in and out. It is possible to prevent the passenger from being exposed to the updraft.

  In the example of FIG. 10, the airflow generators 10a, 10b, 10c... Are arranged in an arc shape, but are not necessarily arranged in an arc shape, and include at least the ascending direction and the descending direction of the car 111. Any arrangement is possible as long as the airflow generation direction is oriented in the direction.

  Further, the means for learning the optimum driving pattern as described above is not limited to the one in which the airflow generators 10a, 10b, 10c,... Are arranged in an arc shape. If applicable, it is equally applicable.

  In addition, here, the airflow generation devices 10a, 10b, 10c... Are installed on a specific floor (X floor). However, the airflow generation devices 10a, 10b, 10c. A configuration in which an optimum pattern is selected and driven is also possible.

  In the second embodiment, the plurality of airflow generators 10a, 10b, 10c,... Are installed on the landing side, but may be installed on the car side. FIG. 14 shows an example when installed on the car side. In this case, a plurality of airflow generators 10a, 10b, 10c... Are arranged in each direction on the car-side face plate 115. Even if it is such a structure, the same effect as the above is acquired. In addition, it is more efficient to provide the airflow generators 10a, 10b, 10c... On the car side because it can correspond to any floor.

  In each of the above embodiments, the airflow generators 10a, 10b, 10c,... Are provided on the car-side face plate 115 or the hall-side face plate 123. Similar effects can be obtained.

  Furthermore, the airflow generation device is not limited to the plasma airflow generation device, and may be any device that can generate an airflow, such as an airflow generation device using a blower.

  In short, the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the components without departing from the scope of the invention in the implementation stage. In addition, various forms can be formed by appropriately combining a plurality of constituent elements disclosed in the above embodiments. For example, some components may be omitted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

FIG. 1 is a diagram showing the configuration of a plasma airflow generator used in the elevator apparatus of the present invention. FIG. 2 is a diagram showing a configuration of an airflow generation device using a blower as another airflow generation device used in the elevator apparatus of the present invention. FIG. 3 is a diagram showing the configuration of the elevator apparatus according to the first embodiment of the present invention. FIG. 3 (a) is a front view of a car of the elevator apparatus, and FIG. It is the figure which looked at the car from the side. FIG. 4 is a view for explaining the state of airflow during door opening and closing of the elevator apparatus according to the embodiment. FIG. 5 is a view for explaining the state of airflow when the elevator car of the elevator apparatus in the embodiment is descending. FIG. 6 is a block diagram showing a configuration of a control system of the airflow generation device in the same embodiment. FIG. 7 is a flowchart showing drive control of the airflow generation device in the same embodiment. FIGS. 8A and 8B are diagrams for explaining the function and effect of the airflow generation device according to the embodiment. FIG. 8A shows the airflow generation direction when the car is lowered, and FIG. 8B shows the airflow generation direction when the car is raised. FIG. FIG. 9 is a diagram showing an example when the airflow generation device according to the embodiment is installed on the landing side. FIG. 10 is a view showing a configuration of a landing door viewed from the hoistway side of the elevator apparatus according to the second embodiment of the present invention. FIG. 11 is a block diagram showing the configuration of the control system of the airflow generation device in the same embodiment. FIG. 12 is a diagram illustrating an example of a drive pattern storage unit provided in the storage device according to the embodiment. FIG. 13 is a flowchart showing drive pattern selection processing of the airflow generation device in the same embodiment. FIG. 14 is a view showing an example when the airflow generation device according to the embodiment is installed on the car side.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Airflow generator, 11 ... Dielectric barrier, 12, 13 ... Electrode, 14 ... AC power supply, 15 ... Plasma, 16 ... Induction jet, 20 ... Airflow generator, 21 ... Wall surface, 21a ... Notch, 22 ... Guide plate, 23 ... Blower, 24 ... Blowout wind, 25 ... Guiding jet, 30 ... Control device, 31 ... Cage position detection device, 32 ... Door drive device, 33 ... Airflow drive device, 34 ... Microphone, 35 ... Storage device, 35a ... Drive pattern storage unit, 35b ... Setting pattern storage unit, 35c ... Noise storage unit, 110 ... Hoistway, 111 ... Ride car, 112 ... Rope, 113 ... Car door, 114 ... Sill, 115 ... Faceplate, 120 ... A landing 121, a landing door 122, a sill 122, a face plate 124, 124a, 124b, an updraft, 125, 127, an airflow 126, a turbulence.

Claims (8)

A car that moves up and down in the hoistway,
A car door that opens and closes when landing on the landing on each floor,
A landing door that is provided at the landing on each floor and that opens and closes by engaging with the car door;
A plurality of airflow generators installed at a lower part of the car door or a lower part of the landing door and generating an airflow in one direction;
Drive control means for selectively driving each airflow generator according to the operating state of the car ,
The drive control means includes
When the car is running, the air flow generators are selectively driven so as to appropriately generate an air flow in the upward or downward direction of the car, and when the car door and the landing door are opened and closed. An elevator apparatus for driving an airflow generation apparatus in which an airflow generation direction is directed to a descending direction of the car among the airflow generation apparatuses.   2. The elevator apparatus according to claim 1, wherein each of the airflow generation devices is arranged by alternately changing the direction of the airflow generation direction so as to generate an airflow in an upward direction and a downward direction of the car. .   3. The elevator apparatus according to claim 2, wherein each of the airflow generation devices is arranged in a lattice shape, and the airflow generation directions are alternately changed in units of rows.   The drive control means drives the airflow generation device in which the airflow generation direction is directed to the upward direction of the car among the airflow generation devices when the car is traveling in the downward direction. The elevator apparatus according to claim 2, characterized in that:   The drive control means drives the airflow generation device in which the airflow generation direction is directed to the downward direction of the car among the airflow generation devices when the car is traveling in the upward direction. The elevator apparatus according to claim 2, characterized in that:   Each of the airflow generation devices is arranged by changing the direction of the airflow generation direction so as to generate airflow in each direction including at least the upward direction and the downward direction of the car. The elevator apparatus according to 1. The elevator apparatus according to claim 6 , wherein each of the airflow generation devices is arranged in an arc shape so as to generate an airflow radially with an airflow generation direction outward. Measuring means for measuring the noise level near the car door or near the landing door;
The drive control means drives in a plurality of patterns while individually changing the airflow generation amount of each airflow generation device while the car is running, and based on the noise level measured by the measurement means at that time 7. The elevator apparatus according to claim 6 , wherein a pattern having the most effective noise reduction effect is selected from the patterns, and the airflow generators are finally driven by the pattern.

Images