Technical field
[0001]
The present invention relates to elevator system air pressure in the elevator car is controlled.
BACKGROUND
[0002]
Recently, the elevator system, with the high-rise buildings, as well as the long stroke of the lifting speed in order to shorten the travel time tends to be faster. Such a fast elevator system of the long stroke, the abrupt change in air pressure in the car, you may feel uncomfortable, such as ear 閉感 (ear clogging) passengers. In order to reduce the discomfort of the passengers due to the sudden pressure change, after the car airtight, air pressure in the elevator car is controlled.
[0003]
　As a conventional art relating to such elevator system, there is known a technique described in Patent Document 1 and Patent Document 2.
[0004]
　In the technique described in Patent Document 1, in either of the door panel or cab member such as a valve comprising a sealing member (hereinafter, referred to as "valve structure") provided. Air pressure in the elevator car is, when it is elevated or reduced pressure controlled by the pressure difference of the car and out of the air pressure, the gap between the car door panel and cab is closed by the valve structure. As a result, the car is in an air-tight state.
[0005]
　In the technique described in Patent Document 2, during running of the car, depending on the car outside of the pressure controlled to be stepwise boost or step down the car interior air pressure. As a result, the passenger of the ear 閉感 is relaxed.
CITATION
Patent Document
[0006]
Patent Document 1: JP 2003-81561 JP
Patent Document 2: Japanese Patent No. 5970362
Summary of the Invention
Problems that the Invention is to Solve
[0007]
　Above in the prior art elevator system according to, in an intermediate portion of one travel stroke of the car, pressurized control air pressure in the elevator car is switched to the pressure reduction control. During switching, since the size of the differential pressure of the car and out of the pressure is small, a gap is generated in the valve structure. In the middle portion of one travel stroke of the car, generally, since the car reaches a maximum speed, greater noise due to the running of the elevator. Therefore, from outside the car, through the gaps formed valve structures, propagate noise in the car, the noise in the car increases.
[0008]
　Accordingly, the present invention is to provide an elevator apparatus comprising a pressure control device which can reduce the noise in the car.
Means for Solving the Problems
[0009]
　In order to solve the above problems, the elevator system according to the present invention includes a car, provided the car, the interior of the air pressure of the car, so that a negative pressure or positive pressure relative to the outside air pressure of the car and a pressure controller for controlling, the car is displaced by the indoor outside of the differential pressure of the car, having a member for reducing the gap of the car, pressure control device, during travel of the car to, be one that switches the negative pressure and positive pressure in the room of the air pressure in the car, pressure control device, before or after the predetermined time period the speed of the car becomes the maximum speed in one travel stroke of the car switching the negative pressure and positive pressure chamber of pressure in a predetermined period, the chamber pressure of the car is controlled to be either negative pressure and positive pressure.
[0010]
　Further, in order to solve the above problems, the elevator system according to the invention is provided in the car, the interior of the air pressure of the car, control such that the negative pressure or positive pressure relative to the outside air pressure of the car comprising a pressure control device for the, cage is displaced by the indoor outside of the differential pressure of the car, having a member for reducing the gap of the car, pressure control device, during travel of the car, a switches the negative pressure and positive pressure chamber of pressure of the car, pressure control device, at a predetermined period when the speed of the car becomes the maximum speed in one travel stroke, the interior air pressure of the car shade elevator apparatus characterized by not switch pressure and positive pressure.
Effect of the invention
[0011]
　According to the present invention, in a period in which the speed of the car is the highest speed, the pressure difference is generated in the chamber outside of the car, it is possible to reduce the clearance of the car. As a result, it is possible to reduce the noise in the car.
[0012]
　Other problems mentioned above, and advantages will become apparent from the following description of embodiments.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013]
FIG. 1 is a side sectional view showing an overall outline of the elevator apparatus according to an embodiment of the present invention.
Is a perspective view showing a car structure in FIG. 2 embodiment.
[Figure 3] shows an example of a valve structure in the present embodiment.
FIG. 4 is an explanatory view showing a first example of the pressure control pattern in the present embodiment.
FIG. 5 is an explanatory view showing a second example of the pressure control pattern in the present embodiment.
6 is an explanatory diagram showing a third example of the pressure control pattern in the present embodiment.
DESCRIPTION OF THE INVENTION
[0014]
　It will be described below with reference to embodiments of the present invention with reference to the drawings. In each figure, those reference numerals identical shows the constituent elements with identical constituent elements or similar features.
[0015]
　Figure 1 is a sectional side view showing an overall outline of the elevator apparatus according to an embodiment of the present invention.
[0016]
　As shown in FIG. 1, the elevator system 1 includes a car 3 and the counterweight 4 move up and down the hoistway 2, the main rope 5 for suspending the car 3 and the counterweight 4 in the hoistway 2, the main hoisting machine having a sheave 6 the rope 5 is wound (not shown), and a deflector sheave 7 the main rope 5 is wound. Hoisting machine in the present embodiment (including the sheave 6) and deflector sheave 7 is provided in the machine chamber 8 disposed above the hoistway 2. In thus configured elevator system 1, when the sheave 6 of the hoisting machine main ropes 5 by rotating driven, up and down the hoistway 2 car 3 and the counterweight 4 are in opposite directions to. The main ropes 5, while being connected to the car frame supporting the elevator car in the car 3, is connected to the frame for supporting a plurality of weights pieces in the counterweight 4.
[0017]
　In Figure 1, but the bottom floor 9 and the top floor 10 of the building where the elevator system 1 is installed it is shown schematically, the number of floors of the building may be any number of floors of the two or more floors. In addition, the landing door 11 is provided on each floor. Landing doors 11, when the car 3 is stopped, so as to face the one car door 12 is provided in the car 3 engages, to open and close with the car door 12 by a door driving device provided in the car 3.
[0018]
　Figure 2 is a perspective view showing the structure of the car 3 in the present embodiment. In addition, the car frame is not shown.
[0019]
　As shown in FIG. 2, cab of the car 3 has a long rectangular shape in the vertical, the side panels 14 provided in the four directions of the side, a floor 15 for supporting the side panel 14 at the bottom, and a ceiling 16 provided in the upper portion of the side panel 14, the car door 12 is provided on the side panel 14 provided on the front side of the car 3 (front side).
[0020]
　Car 3, the car door 12, side panels 14, floor 15, ceiling 16, and the like between the side panels 14 of the car door 12 and the front, indoor and outdoor operation due to the pressure difference of the car 3 (e.g., displacement ) and by the valve structure which closes the gap between each portion, it is kept airtight. Such valve structure, for example, can be applied those described in Patent Document 1 described above. It should be noted that an example of the valve structure of the embodiment will be described later.
[0021]
　To control the pressure of the cab portion of the car 3 with airtight, the car outdoor, on the ceiling 16 of the upper portion of the car 3 riding in the present embodiment, pressure control device (13,17,18) is It is provided. The pressure control device comprises or pumping air outside the car 3 to the cab, the blower 13 or to discharge the air in the cab to the outside. The blower 13, by adjusting the amount of air out into the cab of the car 3, air pressure of the car room portion is pressurizing or pressure-reducing control.
[0022]
　Pressure control device further comprises a differential pressure gauge 17 for detecting the differential pressure inside and outside air pressure of the cage blower control device 18 for controlling the blower 13. Blower controller 18 and the differential pressure gauge 17, similar to the blower 13, is provided on the ceiling 16. Blower controller 18, feeds back the detection signal of the differential pressure gauge 17, the differential pressure detected by the differential pressure gauge 17, to follow the target value of the differential pressure by the pressure control pattern to be described later, controls the supply and exhaust of the blower to.
[0023]
　In the present embodiment, as shown in FIG. 2, the blower 13 is a one, may be provided a plurality. Further, the blower 13, a differential pressure gauge 17 and the blower control unit 18 is not limited to the upper portion of the car 3, the side or rear of the car, may be installed in the lower portion of the floor 15.
[0024]
　Figure 3 shows an example of a valve structure in the present embodiment. Incidentally, this figure, as an example, a car door 12, a valve structure for closing the gap between the sills for squirrel door adjacent to the floor of the car (threshold).
[0025]
　As shown in FIG. 3, the sill groove 20 of sill 19 for squirrel door 12 provided on the car, the valve structure is provided. The present valve structure, provided at the lower end of the car door 12 includes a support 21 located sill groove, connected to the support member, and an elastic body 22 such as rubber which faces the inner wall side surface of the sill groove 20 . Car of chamber, pressurization or when it is depressurized by the pressure control device, the interior and exterior air pressure difference of the car, the car door 12 is pressed. In this case, the car door 12, relative to the sills 19, displaced in a direction (lateral direction in FIG. 3) toward the direction or the cab towards the basket outside. Thus, the elastic body 22, so displaced with the car door 12 contacts the inner wall side surface of the sill groove 20, an elastic body 22, the gap is reduced blocked between the car door 12 and the sill 19 .
[0026]
　Incidentally, it stopped car, air pressure difference inside and outside of the car is in the case of a zero, the elastic member 22 away from the inner wall side surface of the sill groove 20, is between them a gap is interposed. For this reason, the valve structure is, it does not hinder the opening and closing of the car door 12. Also, the car is traveling, the pressurization pressure control cab from vacuum, or even when the pressure is switched to a vacuum, air pressure difference inside and outside of the car may become zero decreases. At this time, the gap between the inner wall side surface of the elastic member 22 and the sill groove 20 occurs, the noise from the car outside through the gap into the cab can propagate. Therefore, in this embodiment, by controlling the air pressure in the car room by the pressure control pattern such as pressure control device will be described below, to reduce noise.
[0027]
　Hereinafter, the pressure control of the car room in the present embodiment will be described with reference to FIGS. 4-6.
[0028]
　Figure 4 is an explanatory view showing a first example of the pressure control pattern in the present embodiment. In this figure, the car is raised (UP) operation, the outdoor air pressure of the car at the height position of the car (atmospheric pressure), the pressure control pattern or car temporal changes in room pressure show. Incidentally, the vertical axis, arrival floor (e.g., the top floor) has a pressure between the reference (0). Although the car speed patterns are also shown in this figure, since the departure one travel stroke (stop floor of the car, the acceleration and the constant speed (maximum speed), and further, to slow, the arrival During the period from the middle portion for a period of time T1 to T2 until implantation) to floor, running speed of the car becomes the maximum speed. Incidentally, according to a predetermined speed pattern as illustrated, motor hoist is provided is controlled by a known speed controller.
[0029]
　As shown in FIG. 4, the air pressure of the car outdoor, and departures car, until stops rising, in accordance with a change in the increase rate of the car, decreases along a substantially S-shaped pressure curve . Here, to be controlled the car interior air pressure, air pressure of the car room varies along the pressure curve of the same S-shaped. At this time, the passenger, prone to discomfort, such as ear 閉感 (ear clogging feeling).
[0030]
　Therefore, in this embodiment, in order to alleviate the discomfort, such as ear 閉感 (ear clogging sense), according to the pressure control pattern varying time polygonal line, for controlling the car interior air pressure. That is, as indicated by the "car in pressure" in FIG. 4, the pressure control pattern in the present embodiment, after the car departure, a predetermined first change rate: varies linearly with (<0 pressure reduction rate) a period of small than the first rate of change, a predetermined second change rate: has a linearly varying periods in (<0 pressure reduction rate), while repeating these periods alternately, the car until you stop, gradually pressure of the car interior is reduced. For this reason, the discomfort of the passengers can be relaxed. Also, air pressure of the car chamber, since changes stepwise time as polygonal line with respect to passengers, reliably recognize the change of the car air pressure, it is possible to induce swallowing, early non it is possible to eliminate the pleasure.
[0031]
　Incidentally, by setting the size of the first and second change rate as appropriate, it may be a pressure control pattern varying with time in a stepwise manner.
[0032]
　The pressure control pattern of FIG. 4, after the car has been departure until immediately before the running speed of the car has reached the maximum speed in the speed pattern is lower than the car outdoor pressure take the car room pressure ( reduced pressure) to. That is, the car room is in a negative pressure relative to the car outdoor. Then, before reaching the maximum speed, the change rate of the car in the pressure is switched from the first rate of change of aforementioned second change rate described above, just before reaching the maximum speed, the car room from the pressure reduction control of the pressure switches control the pressurization higher than the car outdoor pressure take the car room pressure. That is, at this time, the car is switched to positive pressure from the negative pressure. Thereafter, the pressure control pressure is maintained during the period of maximum speed, rate of change of the car in the pressure is switched from the second rate of change to a first rate of change, in the maximum speed of the period, the one change rate is maintained. Only the maximum speed period, enters the deceleration period, pressurization control, i.e. while positive pressure is maintained, as described above, the linearly varying period in the first variation rate, linear in the second change rate repeating a period for changing to alternately until the car is stopped, pressure in the car room is reduced.
[0033]
　In the present embodiment, the control pattern of the polygonal line of the car interior air pressure, the differential pressure between a substantially S-shaped car outdoor air pressure, as a target value of the control, the blower controller 18 (FIG. 2) It is set in advance. Blower controller 18, the detection value of the differential pressure outside the car room detected by the differential pressure gauge 17 (FIG. 2) to match the target value, to control the supply and exhaust of the blower 13 (FIG. 2) . Instead of the differential pressure gauge 17, respectively provided barometer in a room outside of the car, it may be calculated detection value of the differential pressure from the detected values ​​of both barometer.
[0034]
　In the above pressure control pattern, the first traveling stroke of the car, switching between the pressure reduction control and pressure control, that is, switching between negative pressure and positive pressure is only once. Thus, it is possible to simplify the configuration and control program of the pressure control device. Further, before reaching the maximum speed, switched from vacuum controlled pressurization control. That is, at this time, the car room is switched to positive pressure from the negative pressure, in the maximum speed period, control is pressurization is maintained. That is, in the maximum speed period, switching between negative pressure and positive pressure is not executed. Accordingly, in the period of maximum speed, the car interior is kept positive pressure, a state in which there is a pressure difference between outside the car interior. Thus, the car is traveling, operating the valve structure for a car air-tight state, the airtight state is closed gap of the door of the car is maintained, the car from the car outdoor propagation penetration of noise into the room is prevented. Therefore, it is possible to reduce the noise of the car interior.
[0035]
　FIG The pressure control pattern 4, the change rate of the car room pressure at the maximum speed period, that is, the value of the first rate of change, set to be substantially equal to the change rate of the car outdoor pressure at maximum speed period It is. Accordingly, the maximum speed period, the differential pressure of the car interior and exterior air pressure is maintained substantially constant. Thus, the maximum speed period, the valve structure, since substantially constant operating conditions, the propagation invasion of noise from the car outdoor to the car interior can be prevented stably. Note that, before the maximum speed period, switching to the pressurization control i.e. positive pressure period of the second change rate, then, just before the maximum speed period, it may be switched to a period of the first rate of change. Thus, the entire maximum speed period, since the pressure difference of the car interior and exterior air pressure is kept substantially constant, the propagation invasion of noise from the car outdoor to the car interior can be prevented stably.
[0036]
　As described above, in a predetermined time period as a maximum speed in one travel stroke, the indoor and outdoor of the differential pressure of the car by controlling to hold a positive pressure, noise can be reduced in the car. Further, according to the studies of the present inventors, the magnitude of the noise also depends on the size of the differential pressure. Therefore, in this embodiment, as described below, in a predetermined time period which is a maximum speed in one travel stroke, differential pressure, within the magnitude of the predetermined (between predetermined lower and upper limit), the It is controlled to be values. That is, the size of the differential pressure, operates the valve structure is controlled to a minimum size or larger required to close the gap between the door of the car. Further, in a predetermined time period which is a maximum speed in one travel stroke, the magnitude of the differential pressure is controlled to be equal to or less than the maximum value of the magnitude of the differential pressure before and after the predetermined time period. As a result, the noise in the car is reduced.
[0037]
　According to the studies of the present inventors, in a predetermined time period which is a maximum speed in one travel stroke may be set the upper limit of the magnitude of the differential pressure as follows. That is, the outdoor air pressure of the car in FIG. 4, a known approximate that approximates an S-shaped pressure curve showing the outdoor air pressure of the car straight (e.g., see Patent Document 2 above) the size of the pressure difference between the the upper limit of the maximum value. The fitted line in FIG. 4 is a virtual straight line connecting both ends of the S-shaped pressure curve (start and end points).
[0038]
　In this manner, reduction in maximum speed to become a predetermined period in one travel stroke, by controlling the size of the car interior and exterior of the differential pressure within a predetermined range, the noise in the car in a predetermined period the same applies to the pressure control in FIGS. 5 and 6 to be described later to be.
[0039]
　Figure 5 is an explanatory view showing a second example of the pressure control pattern in the present embodiment. In this view, similar to FIG. 4, the cage is elevated in (UP) during operation, the car outdoor pressure at the height position of the car (atmospheric pressure), the pressure control pattern or of the car interior air pressure It shows the time change, the car of the speed pattern. The following describes differences from the pressure control pattern of FIG.
[0040]
　As shown in FIG. 5, the pressure control pattern in the second example, similarly to the first example of FIG. 4, after the departure of the car, predetermined first rate of change: rectilinearly (<0 pressure reduction rate) a period of change, a small magnitude of the change rate (absolute value) than the first rate of change, a predetermined second change rate: repeating alternately the time period that varies linearly with (<0 pressure reduction rate) , until the car is stopped, gradually pressure of the car interior is reduced. Furthermore, in the second example, unlike the first example, after the car has departure until after the running speed of the car has a period which is the maximum speed, than the car outdoor pressure take the car room pressure lower (vacuum) to. That is, air pressure of the car chamber is depressurized control, car interior is held at negative pressure. Then, before reaching the maximum speed, the change rate of the car interior air pressure is switched from the first rate of change of the aforementioned second change rate described above. Once the maximum speed period is held the first change rate, just before the maximum speed period ends, it is switched from the first rate of change to a second rate of change of the above. After switching to the second rate of change, in the second period of the change rate, immediately after the maximum velocity period, the pressure reduction control of the car interior air pressure, than the car outdoor pressure take the car interior air pressure switches control to the pressurization also high. That is, in the maximum speed period, switching between negative pressure and positive pressure is not executed. That is, at this time, the car room is switched to positive pressure from the negative pressure. Thereafter, in the deceleration period, while the pressurization control i.e. positive pressure is maintained, and the period that varies linearly with the first change rate, while alternately repeating period that varies linearly with the second rate of change, ride until the car stops, air pressure in the car room is reduced.
[0041]
　In a second example of the pressure control pattern of FIG. 5, like the first example of FIG. 4, in one travel stroke of the car, switching between the pressure reduction control and pressure control, that is, switching between negative pressure and positive pressure one since times only, it is possible to simplify the configuration and control program of the pressure control device. Further, immediately after the maximum velocity period, switches from vacuum control in pressurization control is switched from the negative pressure to positive pressure. That is, in the maximum speed period, the pressure reducing control is maintained. Accordingly, in the period of maximum speed, the car interior is kept negative pressure, a state in which there is a pressure difference between outside the car interior. Thus, the valve structure operation for the car is in an airtight state elevator car while driving, since airtight blocked gap of the door portion of the car is maintained, the car interior from the car outdoor propagation penetration of noise into can be prevented. Therefore, it is possible to reduce the noise of the car interior.
[0042]
　The pressure control pattern in the second example of FIG. 5, like the first example, the change rate of the car room pressure at the maximum speed period, that is, the value of the first rate of change, of the car outdoor in the maximum speed period It is set to be substantially equal to the rate of change of pressure. Therefore, similarly to the first example, the propagation invasion of noise from the car outdoor to the car interior can be prevented stably. Incidentally, the entire maximum speed period to maintain the first rate of change, just after the maximum speed period, may be switched to a period of the second change rate. Thus, the entire maximum speed period, since the pressure difference of the car interior and exterior air pressure is kept substantially constant, the propagation invasion of noise from the car outdoor to the car interior can be prevented stably.
[0043]
　Figure 6 is an explanatory diagram showing a third example of the pressure control pattern in the present embodiment. In this view, illustrating the cage descends (DN) during operation, the car outdoor pressure at the height position of the car (atmospheric pressure), the temporal change of the pressure control pattern or car interior pressure. Incidentally, the vertical axis, the departure floor (e.g., the top floor) has a pressure between the reference (0). Similarly to FIGS. 4 and 5, also shown together car speed pattern.
[0044]
　As shown in FIG. 6, the car outdoor air pressure, and departures car, until stops lowered, in response to changes in the lowering speed of the car, it rises along a substantially S-shaped pressure curve. Here, similarly to the ascent of the car, to be controlled the car interior air pressure, the passenger, prone to discomfort such as ear 閉感 (ear clogging feeling).
[0045]
　Therefore, even in the pressure control pattern in the third example of FIG. 6, rises similarly (UP) when (FIGS. 4 and 5), according to the pressure control pattern varying time polygonal line, for controlling the car interior air pressure. That is, as indicated by the "car in pressure" in FIG. 6, the pressure control pattern in the third example, after the car departure, a predetermined first change rate (> 0: pressurization rate) linearly in has a linearly period varying from: (pressurization rate> 0), a period of change, a small magnitude of the change rate (absolute value) than the first rate of change, a predetermined second change rate while repeating these periods alternating, until the car is parked, the car in the pressure ride gradually rises. For this reason, the discomfort of the passengers can be relaxed. Also, air pressure of the car chamber, since changes stepwise time as polygonal line with respect to passengers, reliably recognize the change of the car air pressure, it is possible to induce swallowing, early non it is possible to eliminate the pleasure.
[0046]
　Further, in the pressure control pattern of FIG. 6, after the car has departure until immediately before the running speed of the car has reached the maximum speed in the speed pattern is higher than the car outdoor pressure take the car interior air pressure (pressure) to. That is, the cage is a positive pressure. Then, before reaching the maximum speed, the change rate of the car interior air pressure is switched from the first rate of change of aforementioned second change rate described above, just before reaching the maximum speed, the car room pressurization from control of the pressure, switched to pressure reduction control to be lower than the car outdoor pressure take the car room pressure. In other words, at this time, the car interior is switched to the negative pressure from the positive pressure. Thereafter, while vacuum control or negative pressure is maintained, within a period of maximum speed, rate of change of the car interior air pressure is switched from the second rate of change to a first rate of change, in a period of maximum speed , the first change rate is maintained. That is, in the maximum speed period, switching between negative pressure and positive pressure is not executed. Only the maximum speed period, enters the deceleration period, while being vacuum control or negative pressure maintained, as described above, the period during which varies linearly in the first change rate, linearly in a second change rate while repeating the change period to alternately, until the car is stopped, air pressure in the car room to rise.
[0047]
　The pressure control pattern of the third example of FIG. 6, the first traveling stroke of the car, pressurization control and switching between pressure reduction control, that is, switching between negative pressure and positive pressure is only once. Thus, it is possible to simplify the configuration and control program of the pressure control device. Further, before reaching the maximum speed, switch to your Kara vacuum control pressurization. That is, at this time, the car room is switched to negative pressure from the positive pressure, in the maximum speed period, the pressure reducing control is maintained. Accordingly, in the period of maximum speed, the car interior is kept negative pressure, a state in which there is a pressure difference between outside the car interior. Thus, the valve structure operation for the car is the air-tight state of the elevator car during traveling, since the blocked gap of the door portion of the car is airtight is maintained, the car from the car outdoor of noise into the indoor propagation is prevented. Therefore, it is possible to reduce the noise of the car interior.
[0048]
　The pressure control pattern of FIG. 6, the change rate of the car room pressure at the maximum speed period, that is, the value of the first rate of change, set to be substantially equal to the change rate of the car outdoor pressure at maximum speed period It is. Accordingly, the maximum speed period, the differential pressure of the car interior and exterior air pressure is maintained substantially constant. Thus, the maximum speed period, the valve structure, since substantially constant operating conditions, the propagation invasion of noise from the car outdoor to the car interior can be prevented stably. The maximum rate period before switching to the second change rate pressure control i.e. positive pressure for a period of, then, just before the maximum speed period, may be switched to a period of the first rate of change. Thus, the entire maximum speed period, since the pressure difference of the car interior and exterior air pressure is kept substantially constant, the propagation invasion of noise from the car outdoor to the car interior can be prevented stably.
[0049]
　Similarly to the relationship between the pressure control pattern in FIGS. 4 and 5, as a modification of the third example of FIG. 6, it may be modified pressure control pattern of FIG. 6 as follows. That is, after the car has departure until after the running speed of the car has a period which is the maximum speed, higher than the pressure of the car outdoor ride the car interior air pressure to (pressure). That is, air pressure of the car room is pressurization control, the car interior is held at a positive pressure. Then, before the maximum speed period, the change rate of the car interior air pressure is switched from the second rate of change in the first change rate. Once the maximum speed period first change rate is holding, immediately before the maximum speed period ends, it is switched from the first rate of change to the second change rate. After switching to the second rate of change, during the period of the second change rate, the maximum speed period end immediately, since pressurization control of the car interior air pressure, the car outdoor ride the car interior air pressure air pressure It switched to pressure reduction control for less than. That is, at this time, the car is switched to negative pressure from the positive pressure. Thereafter, in the deceleration period, while being vacuum control or negative pressure maintained, and the period that varies linearly with the first change rate, while alternately repeating period that varies linearly with the second rate of change, the car but until you stop, air pressure in the car room to rise.
[0050]
　Also according to the present modification, as in the third example of FIG. 6, the noise propagation from the car outdoor to the car interior is prevented. Therefore, it is possible to reduce the noise of the car interior. Similarly to the pressure control pattern of FIG. 6, the change rate of the car room pressure at the maximum speed period, that is, the value of the first change rate is substantially equal to the change rate of the car outdoor pressure at maximum speed period it may be set to be. Further, similarly to the second example of FIG. 5, immediately after the maximum velocity period may be switched to a period of the first rate of change.
[0051]
　The present invention is not limited to the embodiments described above, but includes various modifications. For example, the above-described embodiments are those described in detail in order to better illustrate the invention and are not intended to be limited to those having the necessarily all described configurations. A part of the configuration of each embodiment, it is possible to replace addition, deletion, or other configurations.
[0052]
　For example, in the embodiment described above, is a differential pressure controlled variable car interior and exterior air pressure of the pressure control device comprising a blower control device and the blower is not limited to this, for example, controlling the amount of the car interior air pressure it may be.
[0053]
　Further, the elevator apparatus is not provided with a machine room, such as the hoisting machine and the deflector pulley is installed in the hoistway, or a so-called machine room-less elevator.
DESCRIPTION OF SYMBOLS
[0054]
1 ... elevator system, 2 ... hoistway, 3 ... car, 4 ... counterweight, 5 ... main rope, 6 ... sieve, 7 ... deflector sheave, 8 ... machine room, 9 ... bottom floor, 10 ... top floor, 11 ... landing door, 12 ... car door, 13 ... blower, 14 ... side panel, 15 ... floor, 16 ... ceiling, 17 ... differential pressure gauge, 18 ... fan control unit, 19 ... Sil, 20 ... sill groove 21 ... support body, 22 ... elastic body

The scope of the claims
[Requested item 1]
　And car,
　provided in the cab, the interior air pressure of the car, and a pressure control device for controlling such that the negative pressure or positive pressure relative to the outside air pressure of the car
equipped with,
　the car is operated by the differential pressure of the interior and exterior of the car, having a member for reducing the gap between the car,
　the air pressure control device, during travel of the car, the room of the car of the elevator system to switch the negative pressure and positive pressure of air pressure,
　the air pressure control device, before or after the predetermined time period the speed of the car becomes the maximum speed in one travel stroke, the chamber pressure of the car switching the negative pressure and positive pressure, said at a predetermined period, the elevator apparatus characterized by controlling so that the interior air pressure of the car, the one of negative pressure and positive pressure.
[Requested item 2]
　In the elevator apparatus according to claim 1,
　wherein the pressure control device, in the predetermined period, the chamber pressure of the car, the size of the pressure difference between the outdoor air pressure of the car, of the car elevator apparatus characterized by controlling so that said member to reduce the gap is equal to or greater than the size that works.
[Requested item 3]
　In the elevator apparatus according to claim 2,
　wherein the pressure control device, wherein the predetermined time period, the magnitude of the differential pressure, so that less than the maximum value of the magnitude of the differential pressure before or after the predetermined time period elevator apparatus characterized by controlling the.
[Requested item 4]
　In the elevator apparatus according to claim 2,
　wherein the pressure control device, wherein the predetermined time period, the magnitude of the differential pressure, the approximate straight line approximating the outdoor air pressure of the car, the outdoor air pressure of the car elevator apparatus characterized by controlling so as to exceed the maximum size of the differential pressure between.
[Requested item 5]
　In the elevator apparatus according to claim 2,
　wherein the pressure control device, in the predetermined period, the rate of change of chamber pressure of the car is the ride to match the rate of change of the outdoor air pressure of the car elevator apparatus characterized by controlling the indoor air pressure of the car.
[Requested item 6]
　In the elevator apparatus according to claim 1,
　wherein the pressure control device, during travel of the car, the interior air pressure of the car, the elevator apparatus characterized by controlling so as to change the time to polygonal line .
[Requested item 7]
　In the elevator apparatus according to claim 6,
　wherein the time variation of the indoor air pressure of the car includes a period having a first rate of change, rate of change magnitude is smaller second than the first rate of change elevator apparatus characterized by repeating the period having a rate of change alternately.
[Requested item 8]
　In the elevator apparatus according to claim 7,
　wherein the pressure control device, the period having the second rate of change, the elevator apparatus characterized by switching the negative pressure and positive pressure chamber of pressure of the car.
[Requested item 9]
　In the elevator apparatus according to claim 8,
　elevator the pressure control device, which in one travel stroke of the car, and switches the negative pressure and positive pressure chamber of pressure of the car only once apparatus.
[Requested item 10]
　In the elevator apparatus according to claim 1,
　the elevator the pressure control device, which in one travel stroke of the car, and switches the negative pressure and positive pressure chamber of pressure of the car only once apparatus.
[Requested item 11]
　In the elevator apparatus according to claim 1,
　wherein the pressure control device,
　a blower for supply and exhaust air in a room Sotoma of the car,
　and a differential pressure gauge for detecting the interior and exterior pressure difference of the cab,
　the differential pressure gauge based on the detection signal, the elevator apparatus characterized by comprising a blower control unit for controlling the blower.
[Requested item 12]
　In the elevator apparatus according to claim 11,
　wherein the fan controller,
　the detection value of the differential pressure detected by the differential pressure gauge is, before or after the predetermined time period the speed of the car is the highest speed, the switching the negative pressure and positive pressure of the car indoor air pressure in the predetermined period, matching the interior of pressure of the car, a target value of the differential pressure that is set to be either negative pressure and positive pressure to manner, the elevator apparatus characterized by controlling the supply and exhaust of the blower.
[Requested item 13]
　And car,
　provided in the cab, the interior air pressure of the car, and a pressure control device for controlling such that the negative pressure or positive pressure relative to the outside air pressure of the car
equipped with,
　the car is operated by the differential pressure of the interior and exterior of the car, having a member for reducing the gap between the car,
　the air pressure control device, during travel of the car, the room of the car in elevator apparatus that switches the negative pressure and positive pressure of air pressure,
　the air pressure control device in a predetermined period in which speed of the car becomes the maximum speed in one travel stroke, negative pressure and yang chamber pressure of the car elevator apparatus characterized by not switch pressure.
[Requested item 14]
　In the elevator apparatus according to claim 13,
　elevator the pressure control device, during travel of the car, the interior air pressure of the car, so that time-varying polygonal line, characterized in that the control apparatus.
[Requested item 15]
　In the elevator apparatus according to claim 13 or claim 14,
　wherein the pressure control device, in one travel stroke of the car, before or after the predetermined time period, only the indoor air pressure of the car once elevator apparatus characterized by switching the negative pressure and positive pressure.