JP2006188317A - Elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator capable of regulating the air pressure in a car with excellent accuracy. <P>SOLUTION: The elevator comprises a car 1 having a cage 2 having an opening 2a for getting-on/getting-off and a car door 3 movable between the opening position to open the opening and the closing position to close the opening, an air pressure regulating means 5 to regulate the air pressure in the cage by feeding/exhausting air in/from the car, an air pressure sensor 15 to detect the air pressure in the cage, an elastic tube 4 which is changed between an expanded state of closing a space between a peripheral edge of the opening and the cage door in an airtight manner and a contracted state of releasing the closing of the space, a changing means 5 to change the elastic tube between the expanded state and the contracted state by feeding/exhausting gas in/from the elastic tube, and a control means 14 which controls the changing means so that the elastic tube is in an expanded state when the cage door closes the opening, and controls the air regulating means so that the detected value of the air pressure detection means reaches the target value. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to improvement of an elevator having a function of adjusting the atmospheric pressure in a car.

  In ultra-high-speed elevators installed in ultra-high floor buildings, etc., the air pressure in the car fluctuates as the car moves up and down, causing passengers in the car to feel clogged and dizzy, making them feel unwell. Sometimes.

  Therefore, an elevator equipped with a system for adjusting the atmospheric pressure in the car when the car is raised and lowered has been proposed.

  FIG. 5 is a schematic configuration diagram showing an example. The air sucked by the suction blower 102 from the intake filter 101 flows into the car 104 through the car pressurization system 103 and increases the atmospheric pressure in the car 104.

  Conversely, when the pressure in the car 104 is lowered, the discharge blower 105 is operated, and the air in the car 104 is discharged out of the car 104 through the car decompression system 106 and the outflow filter 107. To do.

  Each of the blowers 102 and 105 is controlled by a controller 109 based on a detection value of an atmospheric pressure sensor 108 that detects an atmospheric pressure in the car 104.

  However, the car 104 is movable between a car room 110 having a boarding opening 110a formed on one surface, and an open position where the boarding opening 110a is opened and a closing position where the boarding opening 110a is closed. The car door 111 is attached to 110, and there is a slight gap between the peripheral edge of the entrance 110a and the car door 111 moved to the closed position.

  The outside air flows into the car 104 from this gap or the air inside the car 104 flows out. Therefore, even if the system for adjusting the air pressure in the car 104 is operated, the air pressure in the car 104 is operated. It is difficult to accurately adjust the value to the target value, and it may not be possible to sufficiently prevent discomfort such as a passenger's ear clogging or dizziness caused by fluctuations in atmospheric pressure in the car 104.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an elevator capable of accurately adjusting the atmospheric pressure in a car.

The elevator of the present invention is
A cab having at least one surface formed with a passenger opening; and a car door attached to the cab so as to be movable between an opening position for opening the passenger opening and a closing position for closing the passenger opening. A car equipped with a
Atmospheric pressure adjusting means for adjusting the atmospheric pressure in the car by taking air into and out of the car;
Atmospheric pressure detecting means for detecting the atmospheric pressure in the car;
In the car room, the peripheral edge of the passenger door and the car door moved to the closed position are arranged to face each other, and the gap between the peripheral edge of the passenger door and the car door is airtight. An elastic tube that can be switched between an expanded state of closing and a contracted state of releasing the blocking of the gap;
Switching means for switching the elastic tube between an expanded state and a contracted state by taking gas into and out of the elastic tube;
The switching means is controlled so that the elastic tube is in an expanded state when the car door closes the entrance for getting on and off, and the atmospheric pressure adjusting means so that the detected value of the atmospheric pressure detecting means becomes a target value. Control means for controlling
It is characterized by comprising.

  According to the elevator of the present invention, when the car door closes the entrance for getting on and off, the elastic tube is switched to the inflated state so that the car door moves between the peripheral edge of the entrance for getting on and off and the car door moved to the closed position. Can be closed in an airtight state. As a result, air can be prevented from entering and leaving the car through the gap when the car is raised and lowered, so that the air pressure in the car can be accurately adjusted to the target value by operating the air pressure adjusting means. It is possible to prevent the passengers from feeling uncomfortable such as clogged ears or dizziness caused by fluctuations in atmospheric pressure in the car.

  An embodiment of the present invention will be described with reference to the drawings.

  1 is a schematic configuration diagram of an elevator according to an embodiment of the present invention, FIG. 2 is a front view of the elevator car in FIG. 1, FIG. 3 is a cross-sectional view taken along line AA in FIG. 2, and FIG. It is a BB sectional view.

  In FIG. 1, a car 1 is suspended from one end of a rope (not shown) wound around a drive sheave (not shown), and the drive sheave is rotationally driven by a hoisting machine (not shown). Ascend and descend in the hoistway.

  The car 1 is slidable between a car room 2 having a boarding opening 2a formed on one surface, an open position where the boarding opening 2a is opened, and a closing position where the boarding opening 2a is closed. It has a pair of attached car doors 3.

  As shown in FIGS. 2 to 4, an elastic tube 4 is disposed at a position facing the car door 3 that has been slid to the closed position at the peripheral edge of the passenger opening 2 a in the car room 2. This elastic tube 4 is attached in the groove 2c formed in the sill 2b of the cab 2 at the bottom of the passenger opening 2a and faces the bottom surface of the car door 3 that has been slid to the closed position. . Further, the elastic tube 4 is attached to the front part of the car room 2 at the top side and the left and right side parts of the passenger opening 2a, and the upper part of the car door 3 slid to the closed position and the left and right side parts. It faces the back of the three sides.

  By supplying air into the elastic tube 4, the elastic tube 4 is in an inflated state in which the gap between the peripheral edge of the passenger opening 2 a and the car door 3 is closed in an airtight state, and the elastic tube When the air in 4 is exhausted, the elastic tube 4 is in a contracted state in which the airtight state of the gap is released.

  As shown in FIG. 1, the elevator includes an air pressure adjusting unit 5 that adjusts the air pressure in the car 1, and the air pressure adjusting unit 5 converts air taken in by the suction blower 7 from the intake filter 6. The air pressure in the car 1 is increased by flowing into the car 1 via the in-car pressurizing system 8. The air pressure adjusting means 5 causes the discharge blower 9 to discharge the air in the car 1 through the car decompression system 10 and the outflow filter 11 to lower the air pressure in the car 1.

  A check valve 12 is provided in the pipe P1 between the suction blower 7 and the in-car pressurization system 8. A solenoid valve 13 is provided in the pipe P2 between the outflow filter 11 and the in-car decompression system 10.

  Reference numeral 14 denotes a controller composed of a microcomputer, which adjusts the air pressure based on the detected value of the air pressure sensor 15 that detects the air pressure in the car 1 when the car door 3 closes the entrance / exit 2a and the car 1 moves up and down. The means 5 is controlled to adjust the atmospheric pressure in the car 1 to a predetermined value set in advance.

  It should be noted that various values can be set as the predetermined value set as the control target by the atmospheric pressure adjusting means 5, for example, the atmospheric pressure at the intermediate value of the entire lifting / lowering stroke of the car 1 can be set as the predetermined value.

  In the present embodiment, the atmospheric pressure adjusting means 5 includes a switching means for switching the elastic body tube 4 between the expanded state and the contracted state. An accumulator 18 stores and pressurizes air. An inlet of the accumulator 18 is connected to the check valve 12 via a pipe P3, and an outlet of the accumulator 18 is connected to the elastic tube 4 via a pipe P4. A solenoid valve 19 is provided in the pipe P4.

  Part of the air supplied to the car 1 by the suction blower 7 passes through the check valve 12 and flows into the accumulator 18, and this air is stored and pressurized in the accumulator 18. And when the solenoid valve 19 opens, the pressurized air stored in the accumulator 18 is supplied into the elastic body tube 4, and the elastic body tube 4 will be in an expanded state.

  The elastic tube 4 is connected to a solenoid valve 13 via a pipe P5. When the solenoid valve 13 is opened and the discharge blower 9 is driven, the air in the elastic tube 4 is moved. As a result, the elastic tube 4 is contracted.

  The amount of air supplied into the elastic tube 4 can be adjusted by appropriately adjusting the time for opening the solenoid valve 19 or the valve opening amount of the solenoid valve 19 as necessary. Therefore, the expansion state of the elastic tube 4 can be adjusted according to the atmospheric pressure in the car 1, and the gap between the peripheral edge of the boarding opening 2a and the car door 3 can be closed more reliably.

  Next, the operation of the elevator according to this embodiment will be described.

  When the car door 3 is closed to move the car 1 up and down, the check valve 12 and the solenoid valve 19 are opened, and the pressurized air stored in the accumulator 18 is supplied into the elastic tube 4. Thereby, the elastic body tube 4 will be in an expansion | swelling state, and the clearance gap between the peripheral part of the opening 2a for boarding / alighting in the cab 2 and the car door 3 will be obstruct | occluded in an airtight state.

  For this reason, the air pressure adjusting means 5 can accurately adjust the air pressure in the car 1 when moving up and down to a predetermined value, and the passenger's ear in the car 1 due to the pressure fluctuation in the car 1 can be adjusted. It is possible to reliably prevent discomfort such as clogging and dizziness.

  In addition, the controller 14 can adjust the valve opening time and valve opening amount of the solenoid valve 19 as necessary, so that the amount of air supplied into the elastic tube 4 can be adjusted. When the fluctuation of the atmospheric pressure increases, the amount of air supplied into the elastic tube 4 is increased so that the expansion state of the elastic tube 4 is increased, and the space between the peripheral edge of the entrance / exit 2a and the car door 3 is increased. The airtight blockage state of the gap can be enhanced. Thereby, even if the pressure difference between the inside and outside of the car 1 at the time of raising and lowering becomes large, the inflow of air into the car 1 and the outflow of air from the inside of the car 1 can be reliably prevented.

  On the other hand, when the raising / lowering distance of the car 1 is short and the pressure difference between the inside and outside of the car 1 during raising and lowering is small, the amount of air supplied into the elastic tube 4 is reduced and the expanded state of the elastic tube 4 is lowered. By doing so, the time required for supplying air into the elastic tube 4 can be shortened.

  In the present embodiment, the switching means for switching between the expanded state and the contracted state of the elastic tube 4 is a suction blower that is a part of the atmospheric pressure adjusting means 5 that adjusts the atmospheric pressure in the car 1 to a predetermined value. 7, a portion of the air supplied into the car 1 is caused to flow into the accumulator 18 to be pressurized, and the solenoid valve 19 is opened to supply the pressurized air in the accumulator 18 into the elastic tube 4. Therefore, a dedicated facility for supplying air into the elastic tube 4 is not required, and the structure can be simplified.

  After the car 1 arrives at the designated floor, the solenoid valve 19 is closed and the solenoid valve 13 is opened and the discharge blower 9 is driven before the car door 3 is slid to the open position. Thereby, the air in the elastic body tube 4 is exhausted and the elastic body tube 4 will be in a contracted state. Therefore, even if the car door 3 is slid to the open position, the car door 3 and the elastic tube 4 are not rubbed strongly and the elastic tube 4 is not worn.

  In the present embodiment, an explanation has been given by taking as an example an elevator that employs an air pressure adjusting means that keeps the air pressure in the car at a predetermined value set in advance. The same effect can be obtained when the structure of the present invention is applied to an elevator provided with an atmospheric pressure adjusting means for changing the atmospheric pressure in the car substantially linearly.

  In addition, various modifications can be made to the above embodiment without departing from the gist of the present invention.

The schematic block diagram of the elevator which is one Embodiment of this invention. Front view of the car. AA line sectional view in FIG. BB sectional drawing in FIG. The schematic block diagram of a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car 2 Car room 2a Exit for getting on and off 3 Car door 4 Elastic body tube 5 Atmospheric pressure adjusting means, switching means 12 Check valve (first valve)
13 Solenoid valve (third valve)
14 Controller (control means)
15 Barometric pressure sensor (barometric pressure detection means)
18 Accumulator 19 Solenoid valve (second valve)

Claims (5)

A cab having at least one surface formed with a passenger opening; and a car door attached to the cab so as to be movable between an opening position for opening the passenger opening and a closing position for closing the passenger opening. A car equipped with a
Atmospheric pressure adjusting means for adjusting the atmospheric pressure in the car by taking air into and out of the car;
Atmospheric pressure detecting means for detecting the atmospheric pressure in the car;
In the car room, the peripheral edge of the passenger door and the car door moved to the closed position are arranged to face each other, and the gap between the peripheral edge of the passenger door and the car door is airtight. An elastic tube that can be switched between an expanded state of closing and a contracted state of releasing the closing of the gap;
Switching means for switching the elastic tube between an expanded state and a contracted state by taking gas into and out of the elastic tube;
The switching means is controlled so that the elastic tube is in an expanded state when the car door closes the entrance for getting on and off, and the atmospheric pressure adjusting means so that the detected value of the atmospheric pressure detecting means becomes a target value. Control means for controlling
The elevator characterized by comprising.   The elevator according to claim 1, wherein the amount of gas supplied into the elastic tube is adjustable.   The switching means is provided in an accumulator for storing and pressurizing air and an air supply path of the air pressure adjusting means, and a part of the air supplied into the car is connected to a pipe connected to the inlet of the accumulator A first valve for guiding, a second valve provided in a pipe connecting the outlet of the accumulator and the elastic tube, and a pipe connecting the elastic tube and an exhaust path of the pressure adjusting means. The elevator according to claim 1 or 2, further comprising a third valve provided.   The elevator according to any one of claims 1 to 3, wherein the control means controls the air pressure adjusting means so that the air pressure in the car becomes a predetermined value set in advance. The said control means controls the said atmospheric | air pressure adjustment means so that the atmospheric | air pressure in the said car changes substantially linearly with the raising / lowering of the said car, The any one of Claim 1 thru | or 3 characterized by the above-mentioned. The elevator according to one.

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