CN106853940B - Lift appliance - Google Patents
Lift appliance Download PDFInfo
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- CN106853940B CN106853940B CN201611035813.XA CN201611035813A CN106853940B CN 106853940 B CN106853940 B CN 106853940B CN 201611035813 A CN201611035813 A CN 201611035813A CN 106853940 B CN106853940 B CN 106853940B
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- Prior art keywords
- lift car
- rectification
- lift
- tectosome
- car
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/026—Attenuation system for shocks, vibrations, imbalance, e.g. passengers on the same side
- B66B11/0266—Passive systems
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Elevator Door Apparatuses (AREA)
Abstract
The present invention provides a kind of with the lift appliance for rectifying construction that can reliably reduce the noise generated in lift car front surface.Lift appliance has: lift car (10) has door (12), and goes up and down in liftway；And rectification tectosome (20), it is arranged above and below lift car (10), rectification tectosome (20) has valley (29) of the back side from the top of rectification tectosome (20) towards lift car.Air-flow (40) is flowed along valley (29) to the back side of lift car, therefore inhibits air-flow to the inflow of the front-surface side of lift car (10).
Description
Technical field
The present invention relates to a kind of lift appliances, more particularly, to a kind of gas suitable for inhibiting because flowing around lift car
Stream and the lift appliance propagated into lift car of noise generated.
Background technique
The high speed of elevator is constantly sought along with the prosperity of the construction technique of high building, is developed with every point
The express elevator that the speed of 1000m or more rises.In express elevator, due to lift car in liftway high-speed mobile,
Therefore the flowing of the air around lift car removes and generates fluid noise.Fluid noise usually with six powers of speed at than
Example increases.Therefore, along with the raising of speed, the noise in lift car be increased dramatically, and the comfort in lift car reduces.
In contrast, in the past, by the way that the upper and lower of lift car is arranged in fairshaped rectification construction, inhibit the stripping of the flowing of air
From and reduce fluid noise.
Here, being constructed about existing rectification, it is illustrated using Fig. 1 and Fig. 2.
Fig. 1 is shown without when rising in liftway using the elevator of rectification construction, the top of lift car 10
The streamline of air-flow 40.Air-flow 40 is usually formed the laminar flow 41 of the wall surface flowing along structure.But in lift car shape
In the corner that shape curvature of a curve increases, the speed and direction change dramatically of air-flow 40, therefore, air-flow 40 does not follow elevator car
The variation of compartment shape and finally removed, front become turbulent flow 42.In turbulent flow 42, the different scale of size is generated
Vortex generates pressure oscillation when these vortexs mutually collide or collide again with wall surface.Pressure oscillation in this way produces
Raw fluid noise.
When the elevator that Fig. 2 indicates that application has rectification to construct rises in liftway, the top of lift car 10 gas
The streamline of stream 40.By the way that the trim line for rectifying tectosome 20 is set as round and smooth streamlined, the flow velocity of inhibition air-flow 40 and direction
Change dramatically, therefore air-flow 40 not peeling-offly until downstream formed laminar flow 41.Therefore, become to be not likely to produce vortex, subtract
Few fluid noise.
In this way, being set as tectosome 20 is rectified as streamlined such shape round and smooth as much as possible, so as to for electricity
Air-flow 40 around terraced carriage will not cause change in flow, direction change sharply.But it is equipped with guidance on the elevator car
Roller, boarding car door, these equipment formed lift car surface in protrusion, bumps.Therefore, cause the stream of air-flow 40
The variation of speed, direction generates fluid noise.In contrast, conventionally, there is known technology documented by Patent Documents 1 to 3.
In the technology described in patent document 1, the rectification campaign cover set on the top and the bottom of lift car is by being set to the carriage shop front
Top and the bottom skirtboard, cover lift car top plate and car floor carriage with cover and covering guide reel guidance
It is constituted with cover.
In the technology described in patent document 2, the rectification campaign plate set on the top and the bottom of lift car is trapezoidal by bending
Thin plate is formed.The rectangular portion of rectification campaign plate and right angled triangle portion are respectively to the upper and lower of car door and lift car side
The upper and lower in face extends.The variation of the air-flow of carriage door section is reduced as a result,.
In the technology described in patent document 3, it is set in at least one party of the upper and lower end parts of the carriage shop front of lift car
Set air flow-producing device.The air-flow rectificationization of car door surface side is flowed into as a result,.
Citation
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2011-162323 bulletin
Patent document 2: Japanese Unexamined Patent Publication 4-333486 bulletin
Patent document 3: Japanese Unexamined Patent Publication 2010-132453 bulletin
Documented by Patent Documents 1 to 3 in the prior art, it is difficult to be reliably suppressed the fluid in car door portion as described later
The generation of noise.Before being described for this point, the generating unit of free flow bulk noise for Fig. 3 and transmitting road are used
Line.
Fig. 3 indicates the horizontal cross of the lift car of conventional lift.
Fluid noise source (disorder of air-flow, vortex) results between liftway wall surface 31 and lift car 10, fluid
Noise mainly passes through two lines and propagates into lift car 10.Firstly, between liftway wall surface 31 and lift car 10
The fluid noise 91 of generation injects the solid portion of carriage side plate 11, car door 12.As a result, carriage side plate 11, car door 12 into
Row vibration, as a result, the inner radiation noise 92 of carriage side plate 11, car door 12 to lift car 10.Such noise class
Be similar to fluid noise 91 through carriage side plate 11, car door 12 and propagated into lift car 10, therefore be referred to as penetrate sound 92.Thoroughly
The size for crossing sound 92 depends on the such surface density (weight of per unit area through object of carriage side plate 11, car door 12
Amount), surface density is bigger, smaller through sound 92.In addition, gap of the fluid noise 91 between carriage side plate 11 and car door 12 to
It is directly leaked out in lift car 10, becomes noise 93.Such noise is referred to as leakage sound 93.Sound 92 and leakage are penetrated when comparing
When sound 93, in general, leakage sound 93 is larger relative to the contribution of the noise in lift car 10.As the usual hand for reducing leakage sound
Section has the containment member 13 of the gap setting between carriage side plate 11 and car door 12, but considers the opening and closing of door 12, close
The raising of envelope property is restricted, and therefore, it is difficult to be reliably prevented leakage sound 93 by containment member 13.
In this way, although the leakage sound from lift car front surface plays dominating role in noise in lift car,
It can be difficult to preventing leakage sound.Therefore, it is necessary to reduce the fluid noise generated in lift car front surface to be originated from body.
However, documented by Patent Documents 1 to 3 in the prior art, making an uproar about the fluid generated in lift car front surface
The reduction of sound source, there are following such problems.
Documented by the patent document 1 in the prior art, by air-flow from two edge of the left and right of skirtboard, the side of lift car
Face flows into lift car front surface part and generates fluid noise.Fig. 4 indicates that air-flow flows into electricity in the rising of lift car
The appearance of terraced carriage front surface.It should be noted that lift car documented by Fig. 4 is the conventional lift for having rectification construction 20
Carriage, the front surface for rectifying tectosome are functioned effectively as skirtboard.As shown in figure 4, generating the table before lift car
The dynamic air-flow 43 of surface current generates fluid noise source 90 in the front surface of lift car 10, especially car door adjacent upper part.
Documented by the patent document 2 in the prior art, prolong due to that can generate from the upper and lower in lift car side
The air-flow that the edge in the right angled triangle portion for the rectification campaign plate stretched is flowed into via lift car side to lift car front surface, therefore
It is difficult to reliably reduce in the fluid noise source that lift car front surface generates.
Documented by the patent document 3 in the prior art, since the gas as caused by air flow-producing device itself can be generated
The disorder of stream, therefore, it is difficult to reliably reduce fluid noise source.In addition, also setting up air-flow production due to rectifying except tectosome
Generating apparatus, therefore the cost of lift appliance increases.
Summary of the invention
In this regard, the present invention provide it is a kind of with can reliably reduce lift car front surface generate noise rectification
The lift appliance of construction.
In order to solve the above problems, lift appliance of the invention has: lift car has door, and in liftway
Interior lifting；And rectification tectosome, be arranged in lift car up and down, rectification tectosome have from rectification tectosome top
Towards the valley of the back side of lift car.
Invention effect
According to the present invention, air-flow is flowed along the back side of valley towards lift car.Air-flow is to lift car as a result,
The inflow of front-surface side is suppressed, therefore can reliably reduce the noise generated in lift car front surface.
Project, structure and effect other than the above are become clear by the explanation of the following embodiments and the accompanying drawings.
Detailed description of the invention
Fig. 1 shows the streamlines of the air-flow of the elevator car upper of the elevator of no application rectification construction.
Fig. 2 indicates the streamline of the air-flow of the elevator car upper for the elevator that application has rectification to construct.
Fig. 3 indicates the horizontal cross of the lift car of conventional lift.
Fig. 4 indicates the appearance that air-flow is flowed into lift car front surface.
Fig. 5 is the perspective view for indicating the lift car of lift appliance of the embodiment of the present invention 1.
Fig. 6 is the side view of lift car shown in fig. 5.
Fig. 7 is the top view for indicating the flowing of the contour and air-flow of rectification tectosome of embodiment 1.
Fig. 8 is the perspective view for indicating an example of profile change of rectification tectosome.
Fig. 9 is the side view for indicating the lift car of lift appliance of the embodiment of the present invention 2.
Figure 10 is the side view for indicating the variation of embodiment 2.
Figure 11 is the perspective view for indicating the lift car of lift appliance of the embodiment of the present invention 3.
Description of symbols:
10 lift cars
11 carriage side plates
12 car doors
13 containment members
16 back side side plates
20 rectification tectosomes
The vertex 21a, 21b
22 rectification elements
23 remove aerofoil
29 valley
The highest point of 29a valley
30 liftways
31 liftway wall surfaces
40 air-flows
41 laminar flows
42 turbulent flows
43 air-flows
90 fluid noise sources
91 incident sound
92 penetrate sound
93 leakage sound
Specific embodiment
In lift appliance of the invention, the rectification tectosome that lift car has inhibits the stream in lift car front surface
The generation in bulk noise source.This rectification construction is suitable for express elevator or the high speed come and gone in individual liftway electricity
Ladder.
Hereinafter, being illustrated using attached drawing to the embodiment of the present invention.In the drawings, the identical situation table of appended drawing reference
Show identical constitutive requirements or has the constitutive requirements of similar function.
[embodiment 1]
Firstly, illustrating the embodiment of the present invention 1 using Fig. 5~8.
Fig. 5 is the perspective view for indicating the lift car of lift appliance of the embodiment of the present invention 1.
As shown in figure 5, top plate portion (not shown) and base plate in lift car 10, there are two peak potion (references for tool
Vertex 21a, 21b of peak potion), the rectification construction equipped with the symmetrical mountain shape in the width direction center relative to car door 12
Body 20.Rectification tectosome 20 include positioned at lift car 10 car door side and from be equipped with car door 12 lift car 10
Front surface extend planar portions；Positioned at lift car 10 side and from the side plate of the side of lift car 10 extend
Planar portions；And with the continuous curved face part of these planar portions (top of mountain shape and inclined plane part).Here, being located at 12 side of car door
Rectification tectosome 20 planar portions have as fall arrest skirtboard function.
The curved face part of rectification tectosome 20 is included with the top positioned at the door side i.e. end of front-surface side of lift car 10
The peak potion of point 21a；And the peak potion of the vertex 21b of the end with the back side for being located at lift car 10.In the present embodiment 1
In, the vertex 21a of 12 side of car door is consistent with the vertex of planar portions of 12 side of car door, therefore rectifies tectosome 20 comprising top
There is sharper shape in the part of point 21a.Front surface of the air-flow near the 21a of vertex towards lift car 10 is prevented as a result,
Detour.It should be noted that the part comprising vertex 21a also can have circularity.In this case, vertex 21a and Fig. 5 institute
It compares the mechanical strength rectified near the vertex 21a of tectosome 20 towards the positional shift close to vertex 21b and improves in the position shown.
In the curved face part of rectification tectosome 20, links the crest line of vertex 21a and vertex 21b, becomes rectification tectosome
Each crest line of the edge of 20 each planar portions and from vertex 21b along the inclined-plane of the back side of lift car 10 towards lift car
The crest line area defined that 10 top plate portion (the foot of a mountain portion of mountain shape) extends becomes valley 29.The valley 29 from connection vertex
The middle part of the crest line of 21a and vertex 21b is continuously to back side side corner sections (the foot of a mountain of mountain shape of the top plate portion of lift car 10
Portion), constitute the round and smooth inclined-plane of surface no concave-convex.It should be noted that about the curved face part other than valley, their surface
It is round and smooth.In this way, the back side by valley 29 from the top of rectification tectosome 20 towards lift car 10 is arranged.
Each planar portions of rectification tectosome 20 also could alternatively be curved face part.It should be noted that flat by the way that these are arranged
Face, the production for having the rectification tectosome of valley become easy.
It is downwardly projecting between two vertex 21a, the 21b in portion on top when lift car 10 rises in liftway
Region, i.e. valley 29 temporarily block air-flow 40 towards lift car 10.Then, air-flow 40 is constructed along valley 29 from rectification
The back side of the top top of body towards lift car 10 flows.
Fig. 6 is the side view of lift car 10 shown in fig. 5.
As shown in fig. 6, reaching air-flow 40 near vertex 21a, 21b along being made of the curved face part of rectification tectosome 20
Inclined-plane flowing.Therefore, the air-flow 40 between vertex 21a, 21b is reached temporarily to focus at the top of rectification tectosome 20 positioned at vertex
The highest point 29a of valley 29, i.e. valley 29 between 21a, 21b is nearby flowed.In addition, reaching the back side than lift car 10
The air-flow 40 of the position of the vertex 21b backrest surface side of side is along the back side as lift car 10 in rectification tectosome 20
The inclined-plane of curved face part is flowed from vertex 21b towards the back side side plate 16 of lift car 10.That is, reaching the top of rectification tectosome 20
The air-flow 40 in portion is matched and is flowed with back bodice curve part to the valley 29 of rectification tectosome 20.Fluid after distribution is in lift car
10 16 side of back side side plate interflow.
In this way, air-flow 40 is flowed along valley 29 to the back side of lift car 10 in the present embodiment 1.Therefore, can
It is reliably suppressed air-flow 40 and is laterally equipped with the elevator car of car door 12 via the edge of rectification tectosome, the side of lift car 10
The front-surface side in compartment 10 flows into.Therefore, the generation in the fluid noise source in lift car front surface can be reliably suppressed.
It should be noted that rectifying 29 one side of valley in tectosome 20 in a manner of describing circular arc in the present embodiment 1
Rotation extends towards the back side of lift car 10 on one side.Fig. 7 and Fig. 8 shows its appearance.
Fig. 7 is the top view for indicating the flowing of the contour and air-flow of rectification tectosome of the present embodiment 1.In addition, Fig. 8 is
Indicate the perspective view of an example of the profile change of rectification tectosome.
Divide to the left and right when reaching the air-flow 40 near the highest point 29a of valley 29 from the front-surface side of lift car
It flows and when from upper surface from along describing the two-end part with substantially arc-shaped and circular arc centered on the 21b of vertex
It is flowed in the back side of valley 29 towards the lift car of the valley line (dotted arrow in Fig. 7) at the back side of lift car.In addition,
Valley line is not the middle part (valley) from vertex 21a, 21b towards the door side of lift car, i.e. front-surface side, and is directed towards elevator
The back side of carriage.Such flowing becomes so-called mainstream.In addition, reaching the air-flow on the top top near vertex 21a, 21b
Also mainstream is flowed into, is flowed along valley 29 towards lift car back side.It should be noted that reaching on the top near the 21b of vertex
A part of the air-flow in portion is flowed along the inclined-plane of the back side of rectification tectosome towards the back side of lift car.The fluid
Collaborate with the mainstream in 16 side of back side side plate of lift car 10, and as shown in Fig. 8 (bottom right), becomes rectification structure
The foot of the hill portion of body is made, and is flowed along from the inclined-plane that back side side plate 16 extends to the back side of lift car.
By flowing air-flow on rectification tectosome, the gas flow down from the top top for rectifying tectosome
Stream generates vertical vortex and the back side steady flow to lift car as shown in Figure 7.Therefore, elevator car can be reliably suppressed
The generation in the fluid noise source of the front-surface side of the principal element of the noise in compartment, i.e. lift car.Therefore, in lift car
Noise decrease, the comfort in lift car improve.In addition, rectification tectosome itself has the front-surface side for inhibiting lift car
Fluid noise source generation function, therefore the motility of the movement of the lift facilities such as elevator door, lift car will not be hindered
Can, and it is not necessarily to the special device of additional noise reduction, it can be realized the high speed or super high speed elevator device of low noise.
It should be noted that as shown in figure 8, the side that the rectification tectosome of the present embodiment 1 is flowed along air in motion
To and cross-sectional area increases on this aspect, it is identical as common fairshaped rectification construction.Therefore, have in the same manner as common rectification construction
It is reduced the function of air drag when driving.
In addition, lift car 10 is installed on car frame in the lift appliance of the present embodiment 1.The fixed master in car frame
The other end of one end of hoist cable, main hoist cable is fixed on balance weight.Main hoist cable is hung on the rope sheave that hoist engine has, and is hung by the master
Rope is by lift car and balance weight suspension in liftway.Make rope sheave rotation driving by the motor that hoist engine has
When main hoist cable, the lifting in lifting of lift car 10.It should be noted that this structure is also identical in each embodiment below
's.
[embodiment 2]
Next, illustrating the embodiment of the present invention 2 using Fig. 9 and Figure 10.It should be noted that main explanation and reality
Apply the difference of example 1.
Fig. 9 be indicate the embodiment of the present invention 2, i.e. lift appliance lift car side view.
As shown in figure 9, setting includes with the shop front with car door 12 in 12 side of car door of the side of lift car 10
The rectification element 22 of the triangular prism shape of the bottom surface of the substantially isosceles triangle on parallel bottom edge.It should be noted that rectification construction
The structure of body 20 is same as Example 1.
According to the present embodiment 2, the air-flow leaked out from the edge of rectification tectosome to the side surface direction of lift car 10 is whole
Being guided by the inclined-plane that is constituted with the continuous side of the isosceles of bottom surface in stream component 22, and to the back side effluent of lift car 10
It is dynamic.Inhibit the edge from rectification tectosome to the air-flow that the side surface direction of lift car 10 leaks out to lift car 10 as a result,
Front-surface side flows into.Therefore, it is able to suppress the generation in the fluid noise source of the front-surface side of lift car 10.
It should be noted that rectification element 22 can be made of any materials such as metal, resins.In addition, rectification element 22
It is also possible to any one of solid or hollow.
Figure 10 is the side view for indicating the variation of embodiment 2 shown in Fig. 9.In this variation, rectification element 22 by
Plate-like members with the inclined-plane for bending to arc-shaped are constituted.
It should be noted that the form about rectification element 22, as long as having air-flow along the side of lift car
The inclined-plane guided to the back side of lift car, is not limited to the form of Fig. 9,10.For example, it is also possible in the form of Fig. 9
Residue guides the inclined plane part of air-flow and deletes other parts, or plate-like members multistage shown in Fig. 10 is overlapped.In addition, whole
Stream component 22 is also possible to be continuously connected with the rectification tectosome of embodiment 1 streamlined.
[embodiment 3]
Next, illustrating the embodiment of the present invention 3 using Figure 11.It should be noted that main explanation and embodiment 1,2
Difference.
Figure 11 is the perspective view for indicating the lift car of lift appliance of the embodiment of the present invention 3.
As shown in figure 11, in the present embodiment 3, it is arranged in the two sides of car door 12 from the left and right of the shop front of car door 12
What edge was stretched out to outside the shop front removes aerofoil 23.Left and right it is respective except aerofoil 23 throughout lift car 10 short transverse edge with
And the edge of the planar portions of the shop front side of tectosome 20 is continuously rectified with the edge and is configured.Except aerofoil 23 one side with
These edges connection, except the plate face of the side side plate of the plate face and lift car 10 of aerofoil 23 is at an acute angle.That is, removing the plate of aerofoil 23
Facing towards lift car 10 back side and tilted.It should be noted that the structure and 1 phase of embodiment of rectification tectosome 20
Together.
It is such except aerofoil 23 by being arranged, air-flow is able to suppress via the lateral lift car 10 in side of lift car 10
Front-surface side leakage.Therefore, it is able to suppress the generation in the fluid noise source of the front-surface side of lift car 10.
It should be noted that the form except aerofoil 23 is not limited to above-mentioned situation, it is also possible to rectification tectosome 20, in fact
Apply the rectification element 22 in example 2 be continuously connected it is streamlined.
It should be noted that including various modifications example the present invention is not limited to each embodiment.For example, described
Embodiment is to illustrate the present invention in order to facilitate understanding and be illustrated in detail, is not necessarily limited to the whole for having illustrated
Structure.In addition, a part of the structure for each embodiment, is able to carry out the addition, deletion, displacement of other structures.
Claims (9)
1. a kind of lift appliance, has:
Lift car has door, and goes up and down in liftway；And
Tectosome is rectified, the upper and lower of the lift car is set,
It is characterized in that,
The rectification tectosome has the valley of back side of the top from the rectification tectosome towards the lift car,
The top of the rectification tectosome has the first vertex of the end positioned at the door side of the lift car, Yi Jiwei
In the second vertex of the end of the back side of the lift car,
The valley is from the middle part of the crest line for linking first vertex and second vertex continuously to the elevator car
The back side side corner sections of the top plate portion in compartment.
2. lift appliance according to claim 1, which is characterized in that
The middle part for linking the crest line on first vertex and second vertex is contained in the valley.
3. lift appliance according to claim 1, which is characterized in that
The valley is in the upper surface of the rectification tectosome in the arc-shaped centered on second vertex.
4. lift appliance according to claim 1, which is characterized in that
The rectification tectosome has the curved face part comprising the valley.
5. lift appliance according to claim 4, which is characterized in that
The curved face part has the crest line of the extension of the back side from second vertex towards the lift car.
6. lift appliance according to claim 4, which is characterized in that
The rectification tectosome has the planar portions of the side of the door positioned at the lift car.
7. lift appliance according to claim 4, which is characterized in that
The rectification tectosome has the planar portions of the side positioned at the lift car.
8. lift appliance according to claim 1, which is characterized in that
The lift appliance is also equipped with rectification element, the rectification element be set to the lift car side and have by air-flow to
The inclined-plane of the back side guidance.
9. lift appliance according to claim 1, which is characterized in that
The lift appliance is also equipped with except aerofoil, and the two sides of the door in the lift car should be arranged in except aerofoil.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-239916 | 2015-12-09 | ||
| JP2015239916A JP6491082B2 (en) | 2015-12-09 | 2015-12-09 | Elevator equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106853940A CN106853940A (en) | 2017-06-16 |
| CN106853940B true CN106853940B (en) | 2019-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611035813.XA Active CN106853940B (en) | 2015-12-09 | 2016-11-18 | Lift appliance |
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| Country | Link |
|---|---|
| JP (1) | JP6491082B2 (en) |
| CN (1) | CN106853940B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112218814B (en) * | 2018-06-08 | 2022-03-22 | 三菱电机株式会社 | Elevator with a movable elevator car |
| JP2021046306A (en) * | 2019-09-20 | 2021-03-25 | 株式会社日立製作所 | Elevator and car |
| KR102343465B1 (en) * | 2019-12-13 | 2021-12-28 | 현대엘리베이터주식회사 | Aerodynamic cage for elevator |
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| EP0447609B1 (en) * | 1990-03-21 | 1995-03-29 | Otis Elevator Company | Reduction of noise and vibration in an elevator car by selectively reducing air turbulence |
| CN1245137A (en) * | 1998-08-17 | 2000-02-23 | 因温特奥股份公司 | Device for reducing wind noise and vibration of car of high-speed running elevator |
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Also Published As
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| JP2017105573A (en) | 2017-06-15 |
| JP6491082B2 (en) | 2019-03-27 |
| CN106853940A (en) | 2017-06-16 |
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