JPS6093067A - Elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an elevator installed in a hoistway of a high-rise building so that it can be raised and lowered freely, and particularly to a wind noise prevention device for the corner of the elevator (1) A11.

[Technical background of the invention]

Generally, in an elevator, the gap between the side wall of the hoistway and the outside of the corner is small, so when the elevator goes up and down at a high speed, the air flow around the corner is at high speed. Not only does this create a wind noise that makes passengers in the seats feel uneasy, but changes in wind pressure can irritate the eardrums.

As shown in Figs. 1 and 2, a conventional single elevator has a hoistway b'l formed in a building a, and a machine room C separated by a partition plate in the building a located above the hoistway. A hoisting machine θ is installed in this machine room a, a hanging rope f is wound around the drum of this hoisting machine e, and the above-mentioned partition plate d is attached to one end of this hoisting rope f. A car h'l is provided through the rope hole g, and a weight of 1 ft is attached to the other end of the hanging rope f through another rope hole g of the partition plate d.

Therefore, by driving the hoisting machine e, the above-mentioned individual elevator is raised and lowered via the hanging rope ff, and moreover, the above-mentioned lifting and lowering (2) landings installed at each floor of the road are Since the opening/closing door of the car is closed during lifting and lowering, the air flow around the car h in the hoistway is in the opposite direction to the movement of the car h. The wind speed WO flowing outside becomes high.

This can be explained using a calculation formula as follows.

That is, to simplify the explanation, if we assume that air is a compressible fluid and ignore the influence of a weight, we will calculate simply: c WO""5-Baxv...・Scream...
... (11 However, Wo : speed of the car Cmlθas).

Since the car h is moving at a speed ■ in the opposite direction to the direction of the wind, the speed W of the wind with respect to the car h is expressed by the following equation (2).

W = WO + v - □ × v ・Old... (2) Day - Day 0 In addition, W: Wind speed with respect to the rider (m/5ca) and on the other hand,
From a profitability standpoint, recent high-rise buildings have a hoistway cross-sectional area of s
On the other hand, as buildings become taller, the rated speed of each elevator corner may be increased, and the number of parallel elevators is reduced as much as possible. The horizontal projected area SC tends to increase. Furthermore, with the increase in the number of parallel installations,
The speed W of the wind relative to the car h increases, creating air vortices around the car h, and the inside of the hoistway becomes a kind of piston action, making it seem as if the machinery noise (wind noise) of a typhoon is being produced. These wind noises enter the car interior through the air supply/exhaust vents attached to the top of the passenger corner, causing anxiety to the passengers inside the car and irritating their eardrums. It becomes like this.

On the other hand, in elevators equipped with a group management control device that manages multiple cars as a group, two or more cars are often installed side by side in a hoistway, and all cars in the hoistway are When the car h moves up and down at high speed in the same direction, the air in the hoistway generates large wind noise due to the action of the piston, which may give passengers a sense of discomfort or anxiety.

In such cases, as a means to prevent wind noise, it is sufficient to provide an air escape (exhaust port) in a part of the hoistway.
This is difficult due to construction constraints.

Therefore, conventionally, as a means to solve the above-mentioned difficulties,
For example, (1) if there are rides going up and down in the same direction within a predetermined range, the departure of the stopped rides may be delayed, or (2)
) When a stopped car departs, other cars moving up and down in the same direction as the car about to depart within a predetermined range are allowed to move up and down by increasing/decreasing the starting/lowering speed; One example of this is detecting that the wind speed or pressure within the car has exceeded a predetermined value and stopping one of the cars at the nearest floor. There are drawbacks such as lowering operating efficiency and hindering the speeding up of elevators.

[Purpose of the invention]

In order to solve the above-mentioned problems, the present invention uses a detection device on the side of the car to close the switching damper attached to the car when the wind speed or wind pressure exceeds a reference value when the car is raised or lowered. This prevents air from flowing into the passenger compartment and provides forced circulation inside the passenger compartment, completely blocking wind noise when ascending and descending, so as not to cause discomfort or anxiety to passengers in the passenger compartment. The purpose of this is to provide an elevator for the purpose of

[Summary of the invention]

In the present invention, a wind speed or wind pressure detection device is provided in a car corner forming a car, and a circulation ventilation duct (1) having a forced air vent in a part of the car corner communicates with the car room. A switching damper is provided in the ventilation hole so that it can be opened and closed in conjunction with the wind speed or wind pressure detection device.

[Embodiments of the invention]

Hereinafter, the present invention will be described with reference to an illustrated embodiment.

In FIGS. 8 and 8, reference numeral 1 denotes a high-rise building in which a hoistway 2 is formed, and in the upper part of this high-rise building 1 there is a board 4 which also serves as a partition plate for dividing and forming a machine room 8. A plurality of (two in the figure) hoisting machines 5a and 5b are arranged in parallel on this board 4. Also, each hoisting machine 5
Hanging ropes 6a and 6b are wound around each of the hoisting drums a and 5b, and a pilot basket 7.8 is inserted through the rope hole 4ai of the base plate 4 at one end of each of the hanging ropes 6a and 6b. Each of the hanging ropes 6a and 6b has a heavy bell 9 and 10 attached to the other end thereof. Furthermore, on the top of one of the above numbers and 7.

A wind speed detecting device 11 is installed protruding outward from one side wall of the seat 7, and this wind speed detecting device 1] is equipped with a propeller 12a, as shown in Fig. 5 and Part 6. A full-wave rectifier 13 is connected to the speed generator 12, and a voltage detection relay 14'ft is connected to this full-wave rectifier 13 so that the voltage detection relay 14'ft is activated, and furthermore, this voltage detection relay 1) V-14i is connected to the voltage detection relay 14'ft.
It is constructed by being connected to a normally open contact 15 provided in a car progress detection circuit (see FIG. 4).

Incidentally, the progress detection circuit in the machine V beta shown in FIG. 4 is an electric circuit that detects the direction of movement of the first power corner,
In this electric circuit, PG and NG indicate the positive and negative common power supply circuits, and 8U (A) and 5U (B) are the normally open contacts of the upward direction selection relay that turns on when the upward direction of the above-mentioned cars 7 and 8 is selected. Furthermore, 5D(a), 5D(B)
1 shows a normally open contact point of a descending direction selection relay that is turned on when the descending direction of the above-mentioned ride wheels 7 and 8 is selected. Furthermore, SDR indicates a same direction detection relay that turns on when all the cars 7.8 in the same hoistway are in the same direction, and the circuit near this same direction detection relay SDR includes:
The above normally open contact 15 and solenoid coil (electromagnet W) 2
4'i is added.

On the other hand, in FIG. 5, the car g16 is inside the car 7
A door 17 is provided on the seat 7 located at the stop of the car height 16 so as to be openable and closable. A lighting case 719 containing a plurality of lighting lights 18 is provided inside the top plate 7a of the car 7, and a circulation ventilation duct 20 is installed in a part of the top plate 7a. It is provided in the cage 16 so as to communicate with the side wall of the lighting case 19. Further, a blower 21 is disposed in the middle of the circulation ventilation duct 20, and the blower 21 can forcefully blow air into the car room 16. Furthermore, a ventilation hole 22 is provided in the circulation ventilation duct 20 adjacent to the top plate 7a, and a switching damper 23 having a seal 23a for opening and closing the ventilation hole 22 is pivotally attached to the ventilation hole 22. (See Figure 7). Further, the switching damper 23 is connected to the operating rod 24a of the solenoid coil retainer, and although the operating rod 24a can open and close the switching damper 23'ft, the coil spring Due to the elastic force of 25, the door opens until it comes into contact with the switching damper 23f.

The operation of the present invention will be explained below. During normal lifting,
Since the cars 7 and 8 do not run close together, the escape route for the fluid air pushed away by the car 7.8 is sufficient, and the wind speed of the air flow of the car 7.8 is Even if the rated speed is about 240 m/+i, the speed is about 8 y (/8
08 or less.

In general, the sound of the wind starts to become louder when riding a car at 7.8.
It is said that the speed of the wind speed is approximately 10771/sCe or higher, and if the operating point of the normally open contact 15 of the wind speed detection device 11 shown in Fig. 6 is set to approximately 8y/sCe, then during normal driving, The voltage detection relay 14 of the wind speed detection device 11 does not operate.

Therefore, as shown in FIG.
．． Assuming that Car 7.8 is ascending while approaching and running alongside, as the speed of Car 7.8 increases, the speed of the air flow on the side of Car 7.8 increases, and the car is normally open. When the operating point of the contact 15 of 8 m/sec is exceeded, this normally open contact 15 is turned on.

However, at this time, it has not yet reached the point where it becomes a problem as wind noise.

On the τ side, as shown in the electrical circuit diagram of FIG. 4, the two powers 7 and 8 are rising.

PG-SU(A)-SU(B)-SDR Coil-NG turns on the same direction detection relay SDR.
Then.

PC+-'l! ! L (normally open contact 15) -S D R
- Solenoid coil (b) 24 - NG, the solenoid coil 24 shown in FIG. The vent hole 22 is closed to block the inflow of air fluid and to prevent wind noise from entering the passenger compartment.

In this case, the blower 21 has a first-order cage of 7.8
The air inside is circulated through the circulation ventilation duct 20.

Incidentally, since the time required for the high-speed raising and lowering of the car 7.8 is usually about 30 seconds, no inconvenience occurs to the passengers inside the car 7.8.

On the other hand, the same is true when the above-mentioned plot cars 7 and 8 are lowered at the same time.

Next, when the above-mentioned scheme cars 7.8 move up and down in opposite directions, and they pass each other in the middle of the hoistway, it is predicted that the instant of this passing will become large and exceed about 8 m/θθ0, but when they pass each other, , it is well known empirically that wind noise is not a problem in practice, and therefore,
The opening and closing operations of the switching damper 23 can be reduced.

On the other hand, the solenoid coil 2 in the above-mentioned embodiment
4, when the coil spring 250 is not energized, the switching damper 23 is opened for ventilation by the elasticity of the coil spring 250, so it can be used not only in the event of a power outage or breakdown, but also when the train is stopped or during normal operation. There is no risk that the passengers in the cars 7 and 8 will be deprived of oxygen when going up and down.

Next, another embodiment according to the present invention shown in FIG. 8 includes a torque motor 24 instead of a separate solenoid coil.
A switching shaft 23 is mounted on this torque motor 241,
A weight 27 is attached to this switching damper 23, and the switching damper 23 is always kept in an open state by the weight 27, and when the torque motor 24 is energized, the switching damper 23 is closed. .

Next, in another embodiment of the present invention shown in FIG. 9, the wind speed detection device 11 is provided protrudingly from the lower part of the seat 7, and furthermore, in another embodiment of the present invention shown in FIG. In the embodiment, the wind speed detecting device 11 is installed protruding from the 70th side.

On the other hand, in another embodiment of the present invention shown in FIG. 11 and FIG. It is something. That is, in this wind speed detection device, a fan plate 280 is installed horizontally on a bracket 28a via a leaf spring 281), and a detection switch 28 (1'i is in contact with the tip of this fan plate 28c). This wind pressure detecting device 28 is capable of detecting wind noise when the first car 7.8 is raised and lowered in the same way as the wind speed detecting device [11] in the above-mentioned embodiment.

〔Effect of the invention〕

As described above, according to the present invention, the passenger car 7 forming the car room 16 is provided with a wind speed or wind pressure detecting device, and the circulation ventilation duct 20 is provided with a forced air vent 22 in a part of the passenger car 7. It is provided so as to communicate with the car gta, and the switching damper 23t is provided in the ventilation port 22 so that it can be opened and closed in conjunction with the wind speed or wind pressure detection device. 7.
This is because not only can the anxiety and discomfort caused by wind noise be reduced for the passengers in the vehicle, but there is no fear of hindering the operational efficiency of the group management device, and the configuration is simple.

Assembly adjustment and maintenance inspection are also easy.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional diagram schematically showing a conventional single elevator, FIG. 2 is a cross-sectional view taken along the chain line A-A in FIG. 1, and FIG. 8 is a diagrammatic diagram of an elevator according to the present invention. FIG. 4 is an electric circuit diagram showing a part of the progress detection circuit incorporated in the elevator of the present invention, and FIG. 5 is a cross-sectional view schematically showing the entire car of the elevator according to the present invention. , FIG. 6 is a diagram of the wind speed detection device used in the present invention, and FIG. 7 is a diagram of the wind speed detection device used in the present invention.
8 to 12, which are cross-sectional views showing only essential parts of the present invention, are diagrams showing other embodiments of the present invention. 1... High-rise building, 2... Hoistway, 5a, 5b...
Hoisting machine, 5a, (lb... hanging lobe, 7.8...
Car, 11... Wind speed detection device, 16... Car plan,
18...Lighting light, 19...Lighting cake, 20...
Circulation ventilation duct, 21...Blower, 22...Vent, 23...Switching damper, 24...Sononoid coil, 25...Coil spring, 28...Wind pressure detection device. Applicant's agent Kiyoshi Inomata (15)

Claims (1)

[Scope of Claims] 1. A wind speed or wind pressure detection device 1tt is provided in the car forming the car, and a circulation ventilation duct having a vent capable of forced air blowing in a part of the car is connected to the car. An elevator characterized in that the ventilation port is provided with a switching damper so as to be openable and closable in conjunction with a wind speed or wind pressure detection device. 2. The elevator according to claim 1, characterized in that a blower is disposed in the circulation ventilation duct.