JPH06312890A - Elevator car - Google Patents

Abstract

PURPOSE:To provide an elevator car comfortable to ride without giving an uncomfortable feeling to a hearing organ of passengers by suppressing a rapid fluctuation of air pressure in a car in the case of up/down operation. CONSTITUTION:A tubular packing 4 is arranged by surrounding a gate 2 between the gate 2 of a cage 1 and a cage door. This tubular packing 4 is connected to an air pressurizing device 6 through a conductor pipe 7 provided with a pressure release valve 8. A control unit 9 controls holding/opening air- tightness of the case 1 in such a manner that the tubular packing 4 is inflated with pressure air introduced through a flow pipe 7 by closing the pressure release valve 8 to operate the air pressurizing device 6, after operating the cage door closed, and contracted by stopping the air pressurizing device 6 to open the pressure release valve 8 prior to operating the cage door opened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator car, and more particularly to an airtight structure for a high-rise high-speed elevator car.

[0002]

2. Description of the Related Art Conventionally, an elevator car has an entrance and exit on one side of a car room which is guided by guide rails in a hoistway to ascend and descend, and a car door is provided with a predetermined gap on the outside wall surface of the car room on the entrance and exit side. It is attached so that it can be opened and closed.

[0003]

Since the conventional elevator car does not have the structure for maintaining the airtightness in the car room as described above, particularly in the high-speed high-rise elevator, the car is accompanied by the ascent / descent of the car. There has been a problem that the atmospheric pressure in the room changes rapidly (decompression / pressurization), which gives the passengers a sense of discomfort.

The present invention has been made in order to solve the above problems, and maintains the airtightness of the cab during ascending / descending to suppress rapid atmospheric pressure fluctuations in the cab, so that passengers' hearing organs can be prevented. The purpose of the present invention is to obtain an elevator car that is comfortable to ride without causing any discomfort.

[0005]

An elevator car according to the present invention has a car room having an entrance / exit, a car door for opening / closing the entrance / exit, and an expandable / contractible arrangement between an outer peripheral wall of the entrance / exit and a car door. It is provided with a seal member provided and a control device for controlling expansion / contraction of the seal member.

[0006]

According to the present invention, after the operation of closing the car door, the seal member is inflated by the control device, and the space between the outer peripheral wall of the doorway and the car door is closed by the inflated seal member so that the airtightness in the car room is improved. Retained. Further, prior to the opening operation of the car door, the seal member is contracted by the control device, and the sealing between the outer peripheral wall surface of the doorway and the car door is released to release the airtightness in the car room.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall configuration diagram of an elevator car showing an embodiment of the present invention, and FIG. 2 is a sectional view of an essential part of an elevator car showing an embodiment of the present invention. In FIG. A car room 3 provided with a car door 3 is attached to an entrance / exit 2 of the car room 1 and is electrically opened / closed by an opening / closing device (not shown), and 4 surrounds the entrance / exit 2 on the outer peripheral wall of the entrance / exit 2 of the car room 1. The tubular packing as a seal member arranged in 5 is a car operation panel arranged in the car room 1, 6 is an air pressurizing device arranged above the car room 1, and 7 is a tubular packing. 4 and air pressurizing device 6
And 8 are decompression valves attached to the conduit 7, and 9 is for controlling operation / stop of the air pressurizing device 6 and opening / closing of the decompression valve 8 by an opening / closing operation signal of the car door 3 of the car operation panel 5. It is a control device. 10 is the elevator hoistway, 1
1 is an engagement device (not shown) provided between the car door 3 and
It is a landing door that is opened and closed by interlocking with the car door 3.

Next, the operation of this embodiment will be described. First, after the passenger gets into the car, the car door 3 is closed by pressing the close button of the car operation panel 5. And
When a signal of the closed state of the car door 3 is input to the control device 9 by the car operation panel 5, the control device 9 closes the decompression valve 8 and operates the air pressurizing device 6. Then, the air pressurized by the air pressurizing device 6 is introduced into the tubular packing 4 via the conduit 7. As a result, the tubular packing 4 expands, the gap between the outer peripheral wall surface of the doorway 2 of the car room 1 and the car door 5 is closed, and the airtightness in the car room 1 is maintained. After the airtightness inside the car room 1 is maintained, the control device 9 outputs a signal capable of ascending or descending to the drive control device (not shown), and the car is guided by the guide rails and the inside of the hoistway 10 is guided. Up or down. At this time, since the airtightness inside the cab 1 is maintained, a rapid change in the atmospheric pressure inside the cab 1 due to rising or falling can be suppressed.

On the other hand, when the car arrives at the floor, the car operation panel 5 inputs a car landing signal to the control device 9. Therefore, the control device 9 stops the operation of the air pressurizing device 6 and opens the decompression valve 8. Pressurized air in the tubular packing 4 is discharged from the decompression valve 8 via the conduit 7, and the tubular packing 4 is contracted to secure a gap between the outer peripheral wall surface of the doorway 2 of the car room 1 and the car door 5. To be done. And cab room 1
After the clearance between the outer peripheral wall surface of the doorway 2 and the car door 5 is secured, the control device 9 outputs an open signal of the car door 3 to the opening / closing device, and the car door 3 is opened. At this time, the tubular packing 4 is contracted and does not hinder the opening / closing operation of the car door 3.

The air pressurizing device 6 is provided with a pressure adjusting mechanism so that the pressure inside the tubular packing 4 when the tubular packing 4 is expanded can be maintained at a constant pressure.

As described above, according to the above embodiment, the tubular packing 4 is provided on the outer peripheral wall surface of the entrance / exit 2 of the car room 1 so as to surround the entrance / exit 2, and the tubular door packing 4 is provided after the car door 3 is closed. The expansion / contraction of the tubular packing 4 is controlled by the control device 9 so that the tubular packing 4 is inflated and the tubular packing 4 is contracted prior to the opening operation of the car door 3. The airtightness of the inside is maintained, and the rapid pressure change in the passenger compartment 1 due to the rise / fall is suppressed, and it is possible to prevent the passenger's auditory organ from being uncomfortable and to improve the riding comfort.

In the above embodiment, the air pressure device 6 is provided with a pressure adjusting mechanism to control the pressure inside the tubular packing 4 to a constant pressure. However, when the tubular packing 4 is expanded, In addition, the pressure in the tubular packing 4 may be controlled to a constant pressure depending on the operating time of the air pressurizing device 6.

[0013]

As described above, according to the present invention, the car room having the doorway, the car door for opening and closing the doorway, the outer peripheral wall of the doorway and the car door are arranged so as to be inflatable and contractible. The car includes a seal member and a controller that controls expansion / contraction of the seal member. The controller expands the seal member after the car door is closed to close the gap between the outer peripheral wall of the doorway and the car door. Prior to opening the door, the sealing member is shrunk to secure a gap between the outer peripheral wall of the doorway and the car door, which prevents rapid changes in air pressure inside the cabin as it rises and falls, and the passengers' hearing organs are suppressed. There is an effect that an elevator car having a comfortable ride can be obtained without giving discomfort to the car.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an elevator car showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the main parts of an elevator car showing an embodiment of the present invention.

[Explanation of symbols]

 1 car room 2 doorway 4 tubular packing (seal member) 5 car door 9 control device

Claims (1)

[Claims] 1. A car room having an entrance / exit, a car door for opening / closing the entrance / exit, a seal member arranged between the outer peripheral wall surface of the entrance / exit and the car door in an inflatable and contractible manner, and the seal member A control device for controlling expansion / contraction of the car, the control device causes the sealing member to expand after the operation of closing the car door to close the gap between the outer peripheral wall of the doorway and the car door, An elevator car, wherein the seal member is contracted prior to the door opening operation to secure a gap between the outer peripheral wall surface of the doorway and the car door.