CN107555289B - Refitting method of elevator without machine room and elevator without machine room - Google Patents
Refitting method of elevator without machine room and elevator without machine room Download PDFInfo
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- CN107555289B CN107555289B CN201710946180.6A CN201710946180A CN107555289B CN 107555289 B CN107555289 B CN 107555289B CN 201710946180 A CN201710946180 A CN 201710946180A CN 107555289 B CN107555289 B CN 107555289B
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000725 suspension Substances 0.000 claims abstract description 96
- 238000009420 retrofitting Methods 0.000 claims abstract description 23
- 238000004804 winding Methods 0.000 claims 1
- 238000012986 modification Methods 0.000 abstract description 9
- 230000004048 modification Effects 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 9
- 238000010168 coupling process Methods 0.000 description 9
- 238000005859 coupling reaction Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
Provided are a refitting method of a machine room-less elevator and the machine room-less elevator. The purpose of the present invention is to provide a hoisting machine that can be installed in a large number of facilities and that has a different installation size and external dimensions from those before retrofitting. In the case of retrofitting an elevator without a machine room, a new hoisting machine is installed on the upper support body in such a manner that the suspension body after the retrofitting passes through an area between the existing car-side suspension body connection part and the existing counterweight-side suspension body connection part as viewed from directly above. The car side suspension body connecting part after refitting and the counterweight side suspension body connecting part after refitting are arranged on the upper supporting body. Then, the modified suspension body is wound around the 2 nd car hanging wheel, the 1 st car hanging wheel, the driving rope wheel of the new traction machine and the counter weight hanging wheel. And the 1 st end part of the modified suspension body is connected with the car side suspension body connecting part after modification, and the 2 nd end part is connected with the counterweight side suspension body connecting part after modification.
Description
The application is a divisional application of an invention patent application with the application date of 2015, 06 and 03 and the application number of 201510296851.X, and the invention name of the invention is 'a method for modifying an elevator without a machine room and an elevator without a machine room'.
Technical Field
The invention relates to a method for modifying an elevator, which is characterized in that an existing machine room-less elevator with a traction machine arranged at the lower part in a shaft is modified into a machine room-less elevator with a traction machine arranged at the upper part in the shaft.
Background
In a conventional method of retrofitting an elevator, a car sheave is mounted on an existing car, and a counterweight sheave is mounted on an existing counterweight. Then, the hoisting machine is removed from the equipment base provided in the machine room. Then, a new traction machine and a tail stock are set to the equipment base. Then, the main rope is wound around the hoisting machine, the car sheave, and the counterweight sheave, and both ends of the main rope are connected to the tail frames (see, for example, patent document 1).
[ patent document 1 ] Japanese patent laid-open No. 2001-220078
In the above-described type of elevator retrofit having a machine room, since a new hoisting machine is installed in an existing equipment base, the installation size and the outer dimensions of the hoisting machine can be changed relatively easily. In contrast, in the conventional machine room-less elevator, since the restriction on the dimension in the hoistway is relatively strict, the hoisting machine having the same mounting dimension and outer dimension as those of the hoisting machine before the retrofitting is installed at the same position as those before the retrofitting. In addition, when a hoisting machine having a mounting size and an external size different from those before the modification is installed, a construction method is adopted in which all the devices in the hoistway are removed and reset, and the modification period is considerably long.
Disclosure of Invention
The present invention has been made to solve the above-described problems, and an object thereof is to provide a method of retrofitting a machine-roomless elevator, in which a hoisting machine having a mounting size and an external size different from those before retrofitting can be installed using a large number of devices.
In the method for modernizing a machine room-less elevator of the present invention, the machine room-less elevator has: a car; the 1 st car hanging wheel and the 2 nd car hanging wheel are arranged on the car; a counterweight; a counterweight hanging wheel arranged on the counterweight; an existing traction machine which is arranged at the lower part in the shaft and used for lifting the lift car and the counterweight; an upper support body provided at an upper portion in the hoistway; a car return wheel and a counterweight return wheel provided in the upper support body; the existing suspension body is wound on the 1 st car hanging wheel, the 2 nd car hanging wheel, the car return wheel, the existing driving rope wheel of the traction machine, the counterweight return wheel and the counterweight hanging wheel and is used for hanging the car and the counterweight; a car-side suspension body connecting portion provided on the upper support body and connected to the 1 st end of the suspension body; and an existing counterweight side suspension body connecting part which is arranged on the upper supporting body and is connected with the 2 nd end part of the suspension body, wherein the refitting method of the elevator without the machine room comprises the following steps: installing a new hoisting machine on the upper support body in such a manner that the modified suspension body passes through an area between the existing car-side suspension body connecting portion and the existing counterweight-side suspension body connecting portion when viewed from directly above; arranging a modified car side suspension body connecting part and a modified counterweight side suspension body connecting part in a hoistway; and the modified suspension body is wound on the 2 nd car hanging wheel, the 1 st car hanging wheel, a new driving rope wheel of the traction machine and a counterweight hanging wheel, the 1 st end part of the modified suspension body is connected with the modified car side suspension body connecting part, and the 2 nd end part is connected with the modified counterweight side suspension body connecting part.
According to the method of retrofitting a machine roomless elevator of the present invention, since a new hoisting machine is installed on the upper support body so that the suspension body after the retrofitting passes along the straight line connecting the existing car-side suspension body connection part and the existing counterweight-side suspension body connection part when viewed from directly above, the hoisting machine having a mounting size and an external shape size different from those before the retrofitting can be installed using many facilities.
Drawings
Fig. 1 is a schematic plan view showing a machine room-less elevator according to embodiment 1 of the present invention before modification.
Fig. 2 is a front view schematically showing the elevator without a machine room of fig. 1.
Fig. 3 is a schematic perspective view showing a support structure of the car return sheave and the counterweight return sheave of fig. 2.
Fig. 4 is a schematic perspective view showing a state after refitting the elevator without a machine room of fig. 1.
Fig. 5 is a schematic front view of the elevator without a machine room of fig. 4.
Fig. 6 is a schematic perspective view showing a support structure of the new hoisting machine of fig. 4.
Fig. 7 is a schematic perspective view showing a fixed state of the car-side suspension body connecting portion after the refitting of fig. 4.
Fig. 8 is a schematic perspective view showing a fixed state of the modified counterweight-side suspension body connecting portion of fig. 4.
Fig. 9 is a schematic plan view showing a modified elevator without a machine room according to embodiment 2 of the present invention.
Description of the reference symbols
1, a lift car; 2, counterweight; 3 a hanging body is arranged; 4, a shaft; 5 the existing traction machine; 11a 1 st car sling wheel; 11b a 2 nd car sling wheel; 12 counter-weight hoisting wheels; 13 an upper support; 14 car return wheels; 15 counterweight return wheels; 16a provided car-side suspension body connecting portion; 16b a counterweight-side suspension body connecting portion; 21 a new traction machine; 23 driving a sheave; 24 a car-side suspension body connecting portion after the modification; 25 a connection part of the modified counterweight side suspension body; 26 modified suspension body.
Detailed Description
The following describes a mode for carrying out the present invention with reference to the drawings.
Fig. 1 is a schematic plan view showing a machine room-less elevator according to embodiment 1 of the present invention before modification, and fig. 2 is a schematic front view showing the machine room-less elevator of fig. 1. In the figure, a car 1 and a counterweight 2 are suspended in a hoistway 4 by a suspension body 3 (not shown in fig. 1). The suspension body 3 is provided with a plurality of ropes or a plurality of belts.
The counterweight 2 is disposed behind the car 1 as viewed from the landing so as to face the back surface of the car 1 when positioned at the same height as the car 1. The counterweight 2 is disposed on one side (right side in fig. 1) with respect to the center in the width direction (left-right direction in fig. 1) of the car 1 when viewed from directly above.
A hoisting machine 5 as an existing hoisting machine is installed in a lower portion (pit) in the hoistway 4. The hoisting machine 5 raises and lowers the car 1 and the counterweight 2 via the suspension body 3. The hoisting machine 5 includes a hoisting machine main body 6 and a drive sheave 7. The hoisting machine main body 6 includes a motor for rotating the drive sheave 7 and a brake for braking the rotation of the drive sheave 7. The suspension body 3 is wound around the drive sheave 7.
Further, a long hoisting machine having a larger axial dimension than the dimension in the direction perpendicular to the axial direction is used as the hoisting machine 5. The hoisting machine 5 is disposed such that its axis is inclined with respect to the center line of the car 1 in the width direction when viewed from directly above.
The hoisting machine 5 is disposed directly below a corner portion on the opposite side to the side where the counterweight 2 is close to the car 1 at the rear of the car 1 so that most of the machine overlaps the car 1 when viewed from directly above. However, the leading portion of the suspension body 3 of the drive sheave 7 does not overlap the car 1 when viewed from directly above.
In the hoistway 4, a 1 st car guide rail 8a and a 2 nd car guide rail 8b that guide the up-and-down movement of the car 1, and a 1 st counterweight guide rail 9a and a 2 nd counterweight guide rail 9b that guide the up-and-down movement of the counterweight 2 are provided. The car guide rails 8a and 8b are disposed on both sides of the car 1 at an intermediate portion in the front-rear direction (vertical direction in fig. 1) of the car 1.
A 1 st car hanging wheel 11a and a 2 nd car hanging wheel 11b are provided at a lower portion of the car 1. A counterweight suspending wheel 12 is provided on the upper part of the counterweight 2. The car hanging wheels 11a and 11b and the counter hanging wheel 12 are disposed such that their rotation axes are horizontal and perpendicular to the width direction of the car 1.
An upper support 13 (not shown in fig. 1) is provided at an upper portion (ceiling portion) in the hoistway 4. The upper support body 13 is supported by the car guide rails 8a and 8b and the counterweight guide rails 9a and 9 b. A car return sheave 14 and a counterweight return sheave 15 as upper return sheaves are supported by the upper support body 13.
The car return sheave 14 is disposed between the drive sheave 7 and the 2 nd car hanging sheave 11b when viewed from directly above. The car return sheave 14 is disposed such that its rotation axis is horizontal and parallel to the width direction of the car 1.
The counterweight return sheave 15 is disposed between the drive sheave 7 and the counterweight suspending sheave 12 when viewed from directly above. The counterweight return sheave 15 is disposed so that its rotation axis is horizontal and perpendicular to the width direction of the car 1.
A car-side suspension body connecting portion (car-side sheave fixing member) 16a provided in the vicinity of the car guide rail 8a of the upper support body 13 is provided. The 1 st end of the suspension 3 is connected to the car-side suspension connecting portion 16 a. An existing counterweight-side suspension body coupling portion (counterweight-side sheave fixing member) 16b is provided in a portion of the upper support body 13 between the counterweight return sheave 15 and the counterweight guide rail 9 a. The 2 nd end of the suspension body 3 is connected to the counterweight-side suspension body connecting portion 16 b.
The suspension body 3 is wound around the 1 st car hanging wheel 11a, the 2 nd car hanging wheel 11b, the car return wheel 14, the drive sheave 7, the counterweight return wheel 15, and the counterweight hanging wheel 12 in this order from the 1 st end side. That is, the elevator of fig. 1 and 2 has a rope ratio of 2: 1-mode elevator.
Fig. 3 is a schematic perspective view showing a support structure of the car return sheave 14 and the counterweight return sheave 15 in fig. 2. The car return sheave 14 is disposed below the upper support 13 in the vicinity of the car guide rail 8 b. The upper support 13 has a 1 st return wheel beam 17a and a 2 nd return wheel beam 17b arranged at a distance from each other. The return wheel beams 17a and 17b are disposed in parallel to the width direction of the car 1 and in a horizontal state. The counterweight return wheel 15 is disposed between the return wheel beams 17a, 17 b.
Next, a method of retrofitting the existing elevator without the machine room will be described. Fig. 4 is a schematic perspective view showing a state after refitting of the elevator without a machine room of fig. 1, and fig. 5 is a schematic front view showing the elevator without a machine room of fig. 4. In the retrofitting method of embodiment 1, a new hoisting machine 21 is installed on the upper support body 13 so that the suspension body 26 after the retrofitting passes through a region between the existing car-side suspension body coupling portion 16a and the existing counterweight-side suspension body coupling portion 16b (a linear region connecting the existing suspension body coupling portions 16a, 16 b) when viewed from directly above.
The existing suspension body 3, the existing hoisting machine 5, the car return sheave 14, the counterweight return sheave 15, and the existing suspension body connection portions 16a and 16b are removed.
The new hoisting machine 21 is a thin hoisting machine whose axial dimension is smaller than a dimension perpendicular to the axial direction. The new hoisting machine 21 includes a hoisting machine main body 22 and a drive sheave 23. The hoisting machine main body 22 includes a motor that rotates the drive sheave 23, and a brake that brakes the rotation of the drive sheave 23. The hoisting machine 21 is disposed such that the rotation axis of the drive sheave 23 is horizontal and parallel or substantially parallel to the width direction of the car 1.
The hoisting machine 21 is disposed such that the drive sheave 23 is positioned behind the 1 st car hanging sheave 11a in the front-rear direction of the car 1 between one side surface of the car 1 and a hoistway wall facing the side surface when viewed from directly above.
The upper support body 13 is provided with a car-side suspension body connection portion 24 after the conversion and a counterweight-side suspension body connection portion 25 after the conversion. The modified car-side suspension body connecting portion 24 is provided at or near the position where the car return sheave 14 is provided. That is, the modified car-side suspension body connecting portion 24 is provided directly above or near the 2 nd car sheave 11 b.
The modified counterweight-side suspension body connecting portion 25 is provided at or near the position where the counterweight return wheel 15 is provided. That is, the modified counterweight-side suspension body connecting portion 25 is provided directly above or in the vicinity of the counterweight suspending wheels 12.
Then, the modified suspension body 26 is wound around the 2 nd car hanging wheel 11b, the 1 st car hanging wheel 11a, the drive sheave 23 of the new hoisting machine 21, and the counterweight hanging wheel 12. Then, the 1 st end portion of the modified suspension 26 is connected to the modified car-side suspension connecting portion 24, and the 2 nd end portion is connected to the modified counterweight-side suspension connecting portion 25.
Fig. 6 is a schematic perspective view showing a support structure of the new hoisting machine 21 shown in fig. 4. A pair of hoisting machines 27a and 27b are mounted on the upper support 13 so as to cross above the car 1. The hoisting machine 21 is provided on the hoisting machine bases 27a and 27b so that the drive sheave 23 faces the car 1 side when viewed from directly above. Further, the supporting block 28 is interposed between the upper support 13 and the hoisting machine 21 as necessary.
Fig. 7 is a schematic perspective view showing a fixed state of the car-side suspension body connecting portion 24 after the refitting of fig. 4. The modified car-side suspension body connecting portion 24 is horizontally fixed to the upper support body 13 in the vicinity of the 2 nd car guide rail 8 b. The car-side suspension body connecting portion 24 is disposed behind the 2 nd car guide rail 8b in the front-rear direction of the car 1.
Fig. 8 is a schematic perspective view showing a fixed state of the modified counterweight-side suspension body connecting portion 25 of fig. 4. The modified counterweight-side suspension body connecting portion 25 is horizontally erected on the 1 st return wheel beam 17a and the 2 nd return wheel beam 17 b. The other structures are the same as before the modification, but can be replaced with new equipment according to the needs.
In such a retrofitting method for a machine room-less elevator, since a new hoisting machine 21 is installed on the upper support body 13 so that the suspension body 26 after the retrofitting passes through the region between the existing car-side suspension body coupling portion 16a and the existing counterweight-side suspension body coupling portion 16b when viewed from directly above, the hoisting machine 21 having a mounting size and an external shape size different from those before the retrofitting can be installed using many pieces of equipment. Therefore, the latest hoisting machine 21 can be used, and the retrofitting period can be shortened.
Further, since the hoisting machine 21 can be disposed at the upper portion in the hoistway 4, the hoisting machine 21 is not affected by moisture even if water should enter the pit.
Further, since the layout is less changed and the route of the suspension body 26 is simpler than before the modification, damage to the suspension body 26 can be reduced.
Further, since a thin hoisting machine is used as the new hoisting machine 21, the hoisting machine 21 can be easily installed in a limited space in the upper part of the hoistway 4.
Next, fig. 9 is a schematic plan view showing a modified elevator without a machine room according to embodiment 2 of the present invention. In embodiment 2, one of the lowering positions at which the modified suspension body 26 is lowered from the drive sheave 23 of the new hoisting machine 21 is the same position as or near the rising position at which the existing suspension body 3 rises toward the existing car-side suspension body coupling portion 16 a. The other of the lowering positions at which the modified suspension body 26 is lowered from the drive sheave 23 of the new hoisting machine 21 is the same position as or near the raising position at which the existing suspension body 3 is raised toward the existing counterweight-side suspension body coupling portion 16 b. The diameter of the drive sheave 23 is larger than that of embodiment 1 in order to realize such a layout. Other structures and modification methods are the same as those of embodiment 1.
In this way, by matching the falling position at which the suspension body 26 falls from the drive sheave 23 of the new hoisting machine 21 with the rising position at which the existing suspension body 3 rises toward the existing suspension body coupling portions 16a and 16b, the amount of inclination of the suspension body 26 can be made substantially the same as before the retrofitting, and the influence on the layout can be reduced.
Further, the modified car-side suspension body connecting portion 24 may be provided at a lower portion in the hoistway 4, and the modified suspension body 26 may be wound around the existing car return sheave 14.
Further, the modified car-side suspension body connecting portion 24 may be provided at or near the position where the existing counterweight return sheave 15 of the upper support body 13 is provided, and the modified suspension body 26 may be further wound around the car return sheave 14 and the existing drive sheave 7 of the hoisting machine 5. In this case, in the refitted elevator, the existing hoisting machine 5 does not generate driving force, and the drive sheave 7 is used as the lower return sheave. At this time, the loop portion of the existing hoisting machine 5 is removed to eliminate the resistance, so that no excessive load is applied even if the drive sheave 7 is used as the lower return sheave.
In the above example, the existing suspension body 3, the existing hoisting machine 5, the car return sheave 14, the counterweight return sheave 15, and the existing suspension body connection portions 16a and 16b are removed, but if the modified elevator is not hindered, these devices may be left as they are without being removed. This can reduce waste.
In addition, the modified suspension body 26 is preferably a new suspension body, but the length of the existing suspension body 3 can be shortened to be used as the modified suspension body 26.
In addition, the modified suspension body connection portions 24, 25 are preferably new suspension body connection portions, but the existing suspension body connection portions 16a, 16b may also be used as the modified suspension body connection portions.
In the above example, the hoisting machine 21 is installed so that the drive sheave 23 faces the car 1 side, but the hoisting machine 21 may be installed so that the drive sheave 23 faces the opposite side to the car 1, that is, so that the hoisting machine main body 22 faces the car 1 side. In this case, maintenance and inspection of the hoisting machine main body 22 can be easily performed from the car 1.
Claims (5)
1. A retrofitting method for a machine roomless elevator, wherein the method comprises:
a new traction machine is arranged without removing the existing traction machine arranged in the shaft,
using the drive sheave of the existing hoisting machine as a return sheave, and
the existing hoisting machine is prevented from generating driving force.
2. The retrofitting method of a machine roomless elevator according to claim 1, wherein the existing traction machine does not generate a driving force by detaching a loop part of the existing traction machine.
3. The retrofitting method of a machine roomless elevator according to claim 1 or 2, wherein the existing hoisting machine is provided at a lower portion in the hoistway, and the new hoisting machine is provided at an upper portion in the hoistway.
4. The retrofitting method of a machine roomless elevator according to claim 3, wherein the new hoisting machine is provided on an upper support that is provided at an upper portion in the hoistway and is supported by a guide rail.
5. The modernization method of a machineroom-less elevator as set forth in claim 4, wherein the method further comprises:
removing an upper return wheel provided on the upper support body,
arranging a car-side suspension body connecting portion at or near an arrangement position of the upper return pulley, and
and the hanging body is hung on the driving rope wheel of the existing traction machine in a winding way.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-116781 | 2014-06-05 | ||
| JP2014116781A JP6270635B2 (en) | 2014-06-05 | 2014-06-05 | Renovation method of machine room less elevator |
| CN201510296851.XA CN105173978B (en) | 2014-06-05 | 2015-06-03 | The method of modifying and machine-roomless lift of machine-roomless lift |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510296851.XA Division CN105173978B (en) | 2014-06-05 | 2015-06-03 | The method of modifying and machine-roomless lift of machine-roomless lift |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107555289A CN107555289A (en) | 2018-01-09 |
| CN107555289B true CN107555289B (en) | 2020-03-27 |
Family
ID=54886562
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710946180.6A Active CN107555289B (en) | 2014-06-05 | 2015-06-03 | Refitting method of elevator without machine room and elevator without machine room |
| CN201510296851.XA Active CN105173978B (en) | 2014-06-05 | 2015-06-03 | The method of modifying and machine-roomless lift of machine-roomless lift |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510296851.XA Active CN105173978B (en) | 2014-06-05 | 2015-06-03 | The method of modifying and machine-roomless lift of machine-roomless lift |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6270635B2 (en) |
| CN (2) | CN107555289B (en) |
| HK (1) | HK1243693A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6579736B2 (en) * | 2014-08-12 | 2019-09-25 | 三菱電機株式会社 | Renovation method of machine room-less elevator and machine room-less elevator |
| CN112499441B (en) * | 2020-12-08 | 2023-11-21 | 日立电梯（中国）有限公司 | Machine-room-free elevator transformation method and machine-room-free elevator |
| CN112499442A (en) * | 2020-12-08 | 2021-03-16 | 日立电梯（中国）有限公司 | Machine room-less elevator transformation method and machine room-less elevator |
| WO2023223554A1 (en) * | 2022-05-20 | 2023-11-23 | 三菱電機株式会社 | Elevator device and repair method for same |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3820336B2 (en) * | 2000-02-04 | 2006-09-13 | 株式会社日立ビルシステム | Elevator repair method |
| KR20030026368A (en) * | 2001-07-11 | 2003-03-31 | 미쓰비시덴키 가부시키가이샤 | Elevator device |
| JP2005075575A (en) * | 2003-09-01 | 2005-03-24 | Mitsubishi Electric Corp | Elevator apparatus |
| JP4376585B2 (en) * | 2003-10-02 | 2009-12-02 | 三菱電機株式会社 | Machine room-less elevator device |
| JP2006219274A (en) * | 2005-02-14 | 2006-08-24 | Mitsubishi Electric Corp | Elevator hoisting machine and bearing replacement method for elevator hoisting machine |
| JP2007039224A (en) * | 2005-08-04 | 2007-02-15 | Mitsubishi Electric Corp | Remodeling method of elevator device |
| CN201002908Y (en) * | 2006-12-14 | 2008-01-09 | 苏州东南液压电梯有限公司 | Rope-wheel type elevator without machinery room traction |
| JP2009149422A (en) * | 2007-12-21 | 2009-07-09 | Toshiba Elevator Co Ltd | Exchanging device and method of elevator hoisting machine |
| JP4595011B2 (en) * | 2008-10-31 | 2010-12-08 | 三菱電機ビルテクノサービス株式会社 | Repair method and elevator apparatus for existing elevator |
| JP2010184791A (en) * | 2009-02-13 | 2010-08-26 | Toshiba Elevator Co Ltd | Elevator |
| JP2012001308A (en) * | 2010-06-16 | 2012-01-05 | Mitsubishi Electric Corp | Elevator with 4:1 roping arrangement and without machine room |
| JP2012025581A (en) * | 2010-07-28 | 2012-02-09 | Hitachi Ltd | Elevator |
| CN103974891B (en) * | 2011-12-07 | 2016-08-17 | 三菱电机株式会社 | Lift appliance |
| CN103663063B (en) * | 2012-09-07 | 2016-01-27 | 上海三菱电梯有限公司 | The installation and maintenance device of gearless machine |
-
2014
- 2014-06-05 JP JP2014116781A patent/JP6270635B2/en active Active
-
2015
- 2015-06-03 CN CN201710946180.6A patent/CN107555289B/en active Active
- 2015-06-03 CN CN201510296851.XA patent/CN105173978B/en active Active
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2018
- 2018-03-08 HK HK18103312.5A patent/HK1243693A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JP6270635B2 (en) | 2018-01-31 |
| CN105173978A (en) | 2015-12-23 |
| CN107555289A (en) | 2018-01-09 |
| CN105173978B (en) | 2018-03-27 |
| JP2015229567A (en) | 2015-12-21 |
| HK1243693A1 (en) | 2018-07-20 |
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Address after: Tokyo, Japan Patentee after: MITSUBISHI ELECTRIC Corp. Patentee after: Mitsubishi Electric Building Solutions Co.,Ltd. Address before: Tokyo, Japan Patentee before: MITSUBISHI ELECTRIC Corp. Patentee before: MITSUBISHI ELECTRIC BUILDING TECHNO-SERVICE Co.,Ltd. |
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