EP1316526A1 - Elevator device - Google Patents
Elevator device Download PDFInfo
- Publication number
- EP1316526A1 EP1316526A1 EP00957005A EP00957005A EP1316526A1 EP 1316526 A1 EP1316526 A1 EP 1316526A1 EP 00957005 A EP00957005 A EP 00957005A EP 00957005 A EP00957005 A EP 00957005A EP 1316526 A1 EP1316526 A1 EP 1316526A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hoistway
- corbel
- car
- counterweight
- disposed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Images
Classifications
-
- 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
- B66B11/0035—Arrangement of driving gear, e.g. location or support
- B66B11/004—Arrangement of driving gear, e.g. location or support in the machine room
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F17/00—Vertical ducts; Channels, e.g. for drainage
- E04F17/005—Lift shafts
Definitions
- the present invention relates to an elevator apparatus in which a driving machine for raising and lowering a car is installed inside a machine room at an upper portion of a hoistway.
- Figure 5 is a block diagram showing a conventional elevator apparatus shown in Japanese Utility Model Laid-Open No. SHO 55-180680, for example, and Figure 6 is a block diagram showing a machine room from Figure 5 enlarged.
- a pair of car guide rails 2 and a pair of counterweight guide rails 3 are installed inside a hoistway 1.
- a car 4 is guided by the car guide rails 2 so as to be raised and lowered inside the hoistway 1.
- a counterweight 5 is guided by the counterweight guide rails 3 so as to be raised and lowered inside the hoistway 1.
- a machine room 6 is disposed at an upper portion of the hoistway 1.
- a machine base 7 is installed inside the machine room 6.
- a driving machine (a hoisting machine) 8 is mounted on the machine base 7.
- the driving machine 8 has: a driving machine body 9; and a drive sheave 10 rotated by the driving machine body 9.
- a rotatable deflection sheave 11 is also supported by the machine base 7.
- Main ropes 13 for suspending the car 4 and the counterweight 5 are wound around the drive sheave 10 and the deflection sheave 11.
- a landing door 15 is disposed on a landing 14.
- Mount portions 7a of the machine base 7 on a floor portion 6a of the machine room 6 are disposed directly above hoistway wall portions 1a and 1b of the hoistway 1, thereby ensuring strength for supporting deadweight from the driving machine 8 and a load or the like acting on the driving machine 8.
- the present invention aims to solve the above problems and an object of the present invention is to provide an elevator apparatus enabling the utilization efficiency of a building to be improved by reducing the floor area of a machine room.
- an elevator apparatus including: a hoistway having a hoistway wall portion; a car and a counterweight raised and lowered inside the hoistway; a main rope for suspending the car and the counterweight inside the hoistway; a machine room having a floor portion, being disposed at an upper portion of the hoistway; a machine base installed inside the machine room, having a mount portion mounted to the floor portion; and a driving machine for raising and lowering the car and the counterweight by means of the main rope, being mounted to the machine base, wherein a corbel portion is disposed on the hoistway wall portion in an uppermost portion of the hoistway by increasing a thickness dimension of the hoistway wall portion inside the hoistway, the mount portion being disposed directly above the corbel portion such that a load acting on the mount portion is supported by the corbel portion.
- Figure 1 is a block diagram showing an elevator apparatus according to Embodiment 1 of the present invention
- Figure 2 is a block diagram showing a machine room from Figure 1 enlarged.
- a pair of car guide rails 2 and a pair of counterweight guide rails 3 are installed inside a hoistway 1.
- a car 4 is guided by the car guide rails 2 so as to be raised and lowered inside the hoistway 1.
- a counterweight 5 is guided by the counterweight guide rails 3 so as to be raised and lowered inside the hoistway 1.
- a machine room 31 is disposed at an upper portion of the hoistway 1.
- a machine base 32 is installed inside the machine room 31.
- a driving machine (a hoisting machine) 33 is mounted on the machine base 32.
- the driving machine 33 has: a driving machine body 34; and a drive sheave 35 rotated by the driving machine body 34.
- a rotatable deflection sheave 11 is also supported by the machine base 32.
- Main ropes 12 for suspending the car 4 and the counterweight 5 are wound around the drive sheave 10 and the deflection sheave 11.
- the main ropes 12 are composed of a synthetic fiber rope.
- a landing door 15 is disposed on a landing 14.
- Corbel portions 1c and 1d are disposed on the hoistway wall portions 1a and 1b in an uppermost portion of the hoistway 1 by increasing thickness dimensions of the hoistway wall portions 1a and 1b inside the hoistway 1.
- Mount portions 32a of the machine base 32 on a floor portion 31a of the machine room 31 are disposed directly above the corbel portions 1c and 1d such that loads acting on the mount portions 32a are supported by the corbel portions 1c and id.
- corbel portions 1c and 1d are formed such that contact is prevented even when the car 4 and the counterweight 5 are moved to uppermost positions, as shown by the double-dotted chain lines in Figure 2.
- the corbel portion 1c on a side near the landing 14 is disposed directly above the installation space of the landing door 15.
- FIG 3 is a perspective showing a construction of a main rope from Figure 1.
- an inner strand layer 24 having a plurality of inner strands 22 and filler strands 23 disposed in gaps between these inner strands 22 is disposed around a core wire 21.
- Each of the inner strands 22 is composed of a plurality of aramid fibers and an impregnating material such as a polyurethane or the like.
- the filler strands 23 are composed of a polyamide, for example.
- An outer strand layer 26 having a plurality of outer strands 25 is disposed around an outer circumference of the inner strand layer 24.
- Each of the outer strands 25 is composed of a plurality of aramid fibers and an impregnating material such as a polyurethane or the like in a similar manner to the inner strands 22.
- a protective coating layer 28 is also disposed on an outer circumferential portion of the outer strand layer 26.
- the car 4 and the counterweight 5 are suspended inside the hoistway 1 by a plurality of main ropes 12 having the above construction.
- the synthetic fiber rope has a high coefficient of friction compared to a steel rope and is superior in flexibility.
- the diameter of the drive sheave 35 can be reduced.
- the driving machine body 34 can also be reduced in size by using a compact a motor having a permanent magnet.
- the floor area of the machine room 31 can be effectively reduced by adopting the support construction shown in Embodiment 1 when the driving machine 33 has been reduced in size.
- Figure 4 is a block diagram showing part of an elevator apparatus according to Embodiment 2 of the present invention.
- recess portions 31c into which portions of the machine base 32 are inserted are formed in side walls 31b of the machine room 31.
- the rest of the construction is similar to that of Embodiment 1.
- the machine base 32 can be installed easily. Furthermore, the amount of projection of the corbel portions 1c and 1d into the hoistway 1 can be kept small.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
In an elevator apparatus, a corbel portion is disposed on a
hoistway wall portion in an uppermost portion of a hoistway by
increasing a thickness dimension of the hoistway wall portion inside
the hoistway. A mount portion of a machine base on a floor portion
of a machine room is disposed directly above the corbel portion
such that a load acting on the mount portion is supported by the
corbel portion.
Description
- The present invention relates to an elevator apparatus in which a driving machine for raising and lowering a car is installed inside a machine room at an upper portion of a hoistway.
- Figure 5 is a block diagram showing a conventional elevator apparatus shown in Japanese Utility Model Laid-Open No. SHO 55-180680, for example, and Figure 6 is a block diagram showing a machine room from Figure 5 enlarged. In the figures, a pair of
car guide rails 2 and a pair ofcounterweight guide rails 3 are installed inside ahoistway 1. Acar 4 is guided by thecar guide rails 2 so as to be raised and lowered inside thehoistway 1. Acounterweight 5 is guided by thecounterweight guide rails 3 so as to be raised and lowered inside thehoistway 1. - A
machine room 6 is disposed at an upper portion of thehoistway 1. Amachine base 7 is installed inside themachine room 6. A driving machine (a hoisting machine) 8 is mounted on themachine base 7. Thedriving machine 8 has: adriving machine body 9; and adrive sheave 10 rotated by thedriving machine body 9. Arotatable deflection sheave 11 is also supported by themachine base 7.Main ropes 13 for suspending thecar 4 and thecounterweight 5 are wound around thedrive sheave 10 and thedeflection sheave 11. Alanding door 15 is disposed on alanding 14. -
Mount portions 7a of themachine base 7 on afloor portion 6a of themachine room 6 are disposed directly above hoistway wall portions 1a and 1b of thehoistway 1, thereby ensuring strength for supporting deadweight from thedriving machine 8 and a load or the like acting on thedriving machine 8. - In a conventional elevator apparatus of this kind, since it is necessary to dispose the
mount portions 7a of themachine base 7 directly above the hoistway wall portions 1a and 1b, it has been necessary to make themachine base 7 large, irrespective of the size of thedriving machine 8. Hence, it has been necessary to make the floor area of themachine room 6 larger than the horizontal cross-sectional area of thehoistway 1, reducing the utilization efficiency of a building. When the machine room is disposed on an intermediate floor in particular, building structure differs only on the floor where the machine room is disposed, making the building structure of the whole building complicated. - The present invention aims to solve the above problems and an object of the present invention is to provide an elevator apparatus enabling the utilization efficiency of a building to be improved by reducing the floor area of a machine room.
- According to one aspect of the present invention, there is provided an elevator apparatus including: a hoistway having a hoistway wall portion; a car and a counterweight raised and lowered inside the hoistway; a main rope for suspending the car and the counterweight inside the hoistway; a machine room having a floor portion, being disposed at an upper portion of the hoistway; a machine base installed inside the machine room, having a mount portion mounted to the floor portion; and a driving machine for raising and lowering the car and the counterweight by means of the main rope, being mounted to the machine base, wherein a corbel portion is disposed on the hoistway wall portion in an uppermost portion of the hoistway by increasing a thickness dimension of the hoistway wall portion inside the hoistway, the mount portion being disposed directly above the corbel portion such that a load acting on the mount portion is supported by the corbel portion.
-
- Figure 1 is a block diagram showing an elevator apparatus
according to
Embodiment 1 of the present invention; - Figure 2 is a block diagram showing a machine room from Figure 1 enlarged;
- Figure 3 is a perspective showing a construction of a main rope from Figure 1;
- Figure 4 is a block diagram showing part of an elevator
apparatus according to
Embodiment 2 of the present invention; - Figure 5 is a block diagram showing an example of a conventional elevator apparatus; and
- Figure 6 is a block diagram showing a machine room from Figure 5 enlarged.
-
- Preferred embodiments of the present invention will now be explained with reference to the drawings.
- Figure 1 is a block diagram showing an elevator apparatus according to
Embodiment 1 of the present invention, and Figure 2 is a block diagram showing a machine room from Figure 1 enlarged. - In the figures, a pair of
car guide rails 2 and a pair ofcounterweight guide rails 3 are installed inside ahoistway 1. Acar 4 is guided by thecar guide rails 2 so as to be raised and lowered inside thehoistway 1. Acounterweight 5 is guided by thecounterweight guide rails 3 so as to be raised and lowered inside thehoistway 1. - A
machine room 31 is disposed at an upper portion of thehoistway 1. Amachine base 32 is installed inside themachine room 31. A driving machine (a hoisting machine) 33 is mounted on themachine base 32. Thedriving machine 33 has: adriving machine body 34; and adrive sheave 35 rotated by thedriving machine body 34. Arotatable deflection sheave 11 is also supported by themachine base 32. -
Main ropes 12 for suspending thecar 4 and thecounterweight 5 are wound around thedrive sheave 10 and thedeflection sheave 11. Themain ropes 12 are composed of a synthetic fiber rope. Alanding door 15 is disposed on alanding 14. - Corbel portions 1c and 1d are disposed on the hoistway wall portions 1a and 1b in an uppermost portion of the
hoistway 1 by increasing thickness dimensions of the hoistway wall portions 1a and 1b inside thehoistway 1.Mount portions 32a of themachine base 32 on afloor portion 31a of themachine room 31 are disposed directly above the corbel portions 1c and 1d such that loads acting on themount portions 32a are supported by the corbel portions 1c and id. - The corbel portions 1c and 1d are formed such that contact is prevented even when the
car 4 and thecounterweight 5 are moved to uppermost positions, as shown by the double-dotted chain lines in Figure 2. In addition, the corbel portion 1c on a side near thelanding 14 is disposed directly above the installation space of thelanding door 15. - Figure 3 is a perspective showing a construction of a main rope from Figure 1. In the figure, an
inner strand layer 24 having a plurality ofinner strands 22 andfiller strands 23 disposed in gaps between theseinner strands 22 is disposed around acore wire 21. Each of theinner strands 22 is composed of a plurality of aramid fibers and an impregnating material such as a polyurethane or the like. Thefiller strands 23 are composed of a polyamide, for example. - An
outer strand layer 26 having a plurality ofouter strands 25 is disposed around an outer circumference of theinner strand layer 24. Each of theouter strands 25 is composed of a plurality of aramid fibers and an impregnating material such as a polyurethane or the like in a similar manner to theinner strands 22. - A friction-reducing
coating layer 27 for preventing abrasion of thestrands strands drive sheave 11, etc., is disposed between theinner strand layer 24 and theouter strand layer 26. Aprotective coating layer 28 is also disposed on an outer circumferential portion of theouter strand layer 26. - The
car 4 and thecounterweight 5 are suspended inside thehoistway 1 by a plurality ofmain ropes 12 having the above construction. The synthetic fiber rope has a high coefficient of friction compared to a steel rope and is superior in flexibility. - In an elevator apparatus of this kind, deadweight from the
driving machine 33 and loads, etc., acting on thedriving machine 33 are supported by the corbel portions 1c and id. Since the corbel portions 1c and 1d project inside thehoistway 1 and themount portions 32a are disposed directly above the corbel portions 1c and 1d, the utilization efficiency of a building can be improved by making the floor area of themachine room 31 equivalent to the horizontal cross-sectional area of thehoistway 1. Furthermore, construction can be standardized with other floors even if themachine room 31 is disposed on an intermediate floor, preventing the building structure of the whole building from becoming complicated. - Here, where
main ropes 12 composed of a synthetic fiber rope having a high coefficient of friction and superior flexibility are used, the diameter of thedrive sheave 35 can be reduced. Thedriving machine body 34 can also be reduced in size by using a compact a motor having a permanent magnet. Hence, the floor area of themachine room 31 can be effectively reduced by adopting the support construction shown inEmbodiment 1 when thedriving machine 33 has been reduced in size. - Even if, by some chance, the
car 4 and thecounterweight 5 do move to the uppermost portion inside thehoistway 1, damage to the corbel portions 1c and id, thecar 4, and thecounterweight 5 is prevented because no contact can be made with the corbel portions 1c and 1d. In addition, since the corbel portion 1c on the side near the landing 14 is disposed directly above the installation space of the landingdoor 15 and does not interfere with the landingdoor 15, space inside thehoistway 1 can be utilized effectively. - Figure 4 is a block diagram showing part of an elevator apparatus according to
Embodiment 2 of the present invention. In the figure,recess portions 31c into which portions of themachine base 32 are inserted are formed inside walls 31b of themachine room 31. The rest of the construction is similar to that ofEmbodiment 1. - In an elevator apparatus of this kind, since the
recess portions 31c are formed in theside walls 31b and portions of themachine base 32 are inserted into therecess portions 31c, themachine base 32 can be installed easily. Furthermore, the amount of projection of the corbel portions 1c and 1d into thehoistway 1 can be kept small.
Claims (5)
- An elevator apparatus comprising:a hoistway having a hoistway wall portion;a car and a counterweight raised and lowered inside said hoistway;a main rope for suspending said car and said counterweight inside said hoistway;a machine room having a floor portion, being disposed at an upper portion of said hoistway;a machine base installed inside said machine room, having a mount portion mounted to said floor portion; anda driving machine for raising and lowering said car and said counterweight by means of said main rope, being mounted to said machine base,
- The elevator apparatus according to Claim 1, wherein said corbel portion is formed so as to prevent contact with said car even if said car moves to an uppermost position and to prevent contact with said counterweight even if said counterweight moves to an uppermost position.
- The elevator apparatus according to Claim 1, wherein a landing door is disposed on a landing of an uppermost floor, said corbel portion being disposed directly above an installation space of said landing door.
- The elevator apparatus according to Claim 1, wherein a recess portion into which a portion of said machine base is inserted is formed in a side wall of said machine room.
- The elevator apparatus according to Claim 1, wherein said main rope is composed of a synthetic fiber rope.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2000/006099 WO2002020388A1 (en) | 2000-09-07 | 2000-09-07 | Elevator device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1316526A1 true EP1316526A1 (en) | 2003-06-04 |
EP1316526A4 EP1316526A4 (en) | 2008-08-06 |
Family
ID=11736436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00957005A Withdrawn EP1316526A4 (en) | 2000-09-07 | 2000-09-07 | Elevator device |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1316526A4 (en) |
CN (1) | CN1387493A (en) |
WO (1) | WO2002020388A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2082983A1 (en) * | 2008-01-28 | 2009-07-29 | ThyssenKrupp Aufzugswerke GmbH | Lift assembly |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4142009B2 (en) * | 2002-06-07 | 2008-08-27 | 三菱電機株式会社 | Elevator equipment |
MY137170A (en) * | 2003-02-04 | 2009-01-30 | Toshiba Elevator Kk | Elevator |
JPWO2017013764A1 (en) * | 2015-07-22 | 2017-10-12 | 三菱電機株式会社 | Control panel mounting and fixing structure and mounting and fixing method in machine room above elevator hoistway |
JP7032083B2 (en) * | 2017-09-07 | 2022-03-08 | 株式会社日立製作所 | Elevator main rope, elevator |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6087181A (en) * | 1983-10-17 | 1985-05-16 | 竹村 昭三 | Elevator device |
JPS61248884A (en) * | 1985-04-23 | 1986-11-06 | 三菱電機株式会社 | Supporter of winding machine for elevator |
JPH047292A (en) * | 1990-04-26 | 1992-01-10 | Mitsubishi Electric Corp | Elevator equipment |
MXPA95001137A (en) * | 1994-03-02 | 2004-02-16 | Inventio Ag | Cable as suspension means for lifts. |
-
2000
- 2000-09-07 CN CN00815405.8A patent/CN1387493A/en active Pending
- 2000-09-07 WO PCT/JP2000/006099 patent/WO2002020388A1/en active Application Filing
- 2000-09-07 EP EP00957005A patent/EP1316526A4/en not_active Withdrawn
Non-Patent Citations (2)
Title |
---|
No further relevant documents disclosed * |
See also references of WO0220388A1 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2082983A1 (en) * | 2008-01-28 | 2009-07-29 | ThyssenKrupp Aufzugswerke GmbH | Lift assembly |
WO2009095192A2 (en) * | 2008-01-28 | 2009-08-06 | Thyssenkrupp Aufzugswerke Gmbh | Elevator system |
WO2009095192A3 (en) * | 2008-01-28 | 2009-10-15 | Thyssenkrupp Aufzugswerke Gmbh | Elevator system |
Also Published As
Publication number | Publication date |
---|---|
CN1387493A (en) | 2002-12-25 |
WO2002020388A1 (en) | 2002-03-14 |
EP1316526A4 (en) | 2008-08-06 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20020502 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AT BE CH CY DE FR LI NL |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: MITSUBISHI DENKI KABUSHIKI KAISHA |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 20080704 |
|
17Q | First examination report despatched |
Effective date: 20081010 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20090221 |