EP1555235A1 - Hoisting apparatus for elevator - Google Patents
Hoisting apparatus for elevator Download PDFInfo
- Publication number
- EP1555235A1 EP1555235A1 EP03738615A EP03738615A EP1555235A1 EP 1555235 A1 EP1555235 A1 EP 1555235A1 EP 03738615 A EP03738615 A EP 03738615A EP 03738615 A EP03738615 A EP 03738615A EP 1555235 A1 EP1555235 A1 EP 1555235A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rope
- pressing
- sheave
- elevator
- pressing roller
- 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- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B15/00—Main component parts of mining-hoist winding devices
- B66B15/02—Rope or cable carriers
- B66B15/04—Friction sheaves; "Koepe" pulleys
-
- 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
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/08—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
Definitions
- the present invention relates to a hosing system for a traction type elevator. More particularly, the invention relates to a hoisting system for an elevator which includes a sheave connected to a motor for rotation a rope wrapped around an outer circumferential surface of the sheave for lifting up and down an elevator car.
- FIG. 5 A hoisting system for a conventional traction type elevator will be described in Fig. 5.
- a sheave 1 is connected to a motor (not shown) for rotation.
- a rope 2 is wrapped around an outer circumferential surface of the sheave 1.
- An elevator car 3 is connected to a suspending portion of the rope 2.
- a counterweight 4 is connected to the other suspending portion of the rope 2.
- the elevator car 3 When the motor is driven to rotate, the elevator car 3 can be lifted up and down through the rotation of the sheave 1 and vertical movements of the rope 2.
- the rotational driving force of the motor is transmitted to the rope 2 by making use of only a frictional force between the outer circumferential surface of the sheave 1 and an circumferential surface of the rope 2.
- the frictional force is obtained from friction coefficients of the sheave 1 and the rope 2 and tension exerted by the elevator car 3 and the counterweight 4.
- the invention was made in view of the above situation, and an object thereof is to provide a hoisting system for an elevator which can reduce the weight of a traction type elevator system.
- a hoisting system for an elevator including a sheave connected to a motor for rotation and a rope wrapped around an outer circumferential surface of the sheave so as to lift up and down an elevator car, the hoisting system being characterized by having a pressing roller for pressing the rope against the outer circumferential surface of the sheave.
- the invention is characterized in that the pressing roller is rotatably supported on a non-rotational member and is characterized by having a pressing means for pressing the roller against the rope. Consequently, the rotation of the pressing roller becomes smooth, and a strong pressing force against the rope and the sheave can be generated.
- the invention is characterized in that the pressing roller has in its outer circumference an arc-like groove which is brought into engagement with the rope. Consequently, the contact area of the pressing roller to the rope is increased, and the frictional force between the pressing roller and the rope can be increased.
- the invention is characterized in that the outer circumference of the pressing roller is made of an elastic material. Namely, the outer circumference of the pressing roller can be deformed into an arc by following the circumference of the rope. Consequently, the contact area of the pressing roller to the rope is increased, and the frictional force between the pressing roller and the rope can be increased.
- the invention is characterized in that the pressing roller is made up of at least a pair of pressing rollers which are disposed substantially symmetrically relative to a rotating center of the sheave. Consequently, when compared with a case where a single pressing roller is provided, the frictional force between the pressing rollers and the rope can be increased.
- the invention is characterized in that the pressing roller is movable relative to the rope. Consequently, the invention can deal with ropes of various rope diameters.
- the invention is characterized by including a belt wrapped between the pair of pressing rollers, whereby the pair of pressing rollers press the rope against the outer circumferential surface of the sheave via the belt wrapped between the pair of pressing rollers. Consequently, the contact area of the pressing rollers to the rope via the belt can be increased, whereby the frictional force between the rollers and the rope via the belt can be increased.
- reference numeral 100 denotes a hoisting system for an elevator which is applied to a traction type elevator system.
- a fixing member 10 is mounted on a stationary location of the traction type elevator system.
- the rotation of a motor (not shown) is transmitted to an input portion 111 of a sheave 11 via reduction gears (not shown). Namely, the sheave 11 is connected to the motor for rotation.
- a rope 12 is wrapped around a groove portion 131 in an outer circumferential surface 13 of the sheave 11 so as to lift up and down an elevator car 14.
- the elevator car 14 is connected to a suspending portion of the rope 12.
- a counterweight 15 is connected to the other suspending portion of the rope 12.
- a pair of pressing rollers 16 are disposed substantially symmetrically relative to a rotating center of the sheave 11, so that the rope 12 is pressed against the outer circumferential surface 13 of the sheave 11.
- the pair of pressing rollers 16 are disposed substantially symmetrically in a lateral direction relative to a vertical including the rotating center of the sheave 11.
- the pair of pressing rollers 16 has in the outer circumference thereof an arc-like groove 17 which is brought into engagement with the rope.
- Each pressing roller 16 is rotatably supported on a shaft 18 (a non-rotational member) via a pair of bearings 19.
- a spring 20 presses each pressing roller 16 against the rope 12. Since each spring 20 can expand and contract, each pressing roller is movable relative to the rope.
- the pressing force of each pressing roller 16 against the rope 12 can be adjusted appropriately by allowing a fixing portion where the pressing means (the spring 20) is fixed to the fixing member 10 to move relative to the fixing member 10.
- the pressing force of each pressing roller 16 against the rope 12 can be adjusted appropriately by setting an appropriate spring constant for the spring 20.
- Shaft snap rings 23 are used not only to locate the pair of bearings 19 but also to prevent the dislocation thereof.
- the pair of pressing rollers 16 are pressing the rope 12 against the outer circumferential surface of the sheave 11 via the springs 20 at all times. Namely, the frictional force between the outer circumferential surface of the sheave 11 and the circumferential surface of the rope 12 is increased by the pair of pressing rollers 16. Consequently, the weights of the elevator car 3 and the counterweight 4 can be reduced.
- each pressing roller 200 a cylindrical elastic body 202 of a rubber or silicone is held around an outer circumference of a metallic roller main body 201. Similar to the pressing roller of the first embodiment, the roller main body 201 is rotatably supported on a shaft 203 (a non-rotational member) via a pair of bearings 204.
- the elastic body 202 is separately held on the outer circumference of the pressing roller 200, but the roller main body 201 itself may form a cylindrical elastic body.
- reference numeral 300 denotes a hoisting system for an elevator which is applied to a traction type elevator system.
- a fixing member 310 is mounted on a stationary location of the traction type elevator system.
- the rotation of a motor (not shown) is transmitted to an input portion 333 of a sheave 311 via reduction gears (not shown). Namely, the sheave 311 is connected to the motor for rotation.
- a rope 312 is wrapped around a groove portion (not shown) in an outer circumferential surface 313 of the sheave 311 so as to lift up and down an elevator car (not shown).
- the elevator car is connected to a suspending portion of the rope 312.
- a counterweight (not shown) is connected to the other suspending portion of the rope 312.
- a pair of pressing rollers 316 are disposed substantially symmetrically relative to a rotating center of the sheave 311, so that the rope 312 is pressed against the outer circumferential surface 313 of the sheave 311.
- the pair of pressing rollers 316 are disposed substantially symmetrically in a lateral direction relative to a vertical including the rotating center of the sheave 311.
- a belt 317 is wrapped around outer circumferential surfaces of the pair of pressing rollers 316. The pair of pressing rollers 316 press the rope 312 against the outer circumferential surface of the sheave 311 via the belt 317.
- each pressing roller 316 is rotatably supported on a shaft 318 (a non-rotational member) via a pair of bearings (not shown).
- a spring 320 presses each pressing roller 316 against the rope 312. Since each spring3 20 can expand and contract, each pressing roller 316 is movable relative to the rope 312.
- An end of the spring 320 is supported on the fixing member 310 and the other end thereof is connected to a circumferential groove (not shown) in the shaft 318.
- the pair of pressing rollers 316 are pressing the rope 312 against the outer circumferential surface of the sheave 311 via the belt 317 by the springs 320 at all times. Namely, the contact area (contact resistance) of the pressing rollers 316 to the rope 312 via the belt 317 is increased, whereby the frictional force between the pressing rollers 316 and the rope 312 via the belt 317 can be increased (a greater frictional resistance).
- the roping mode has been described as a 1-to-1 mode, the invention is not limited to the 1-to-1 roping mode.
- the hoisting system for an elevator which can reduce the weight of a traction type elevator system.
- the rotation of the pressing roller becomes smooth, and a strong pressing force against the rope and the sheave can be generated.
- the contact area of the pressing roller to the rope is increased, and the frictional force between the pressing roller and the rope can be increased.
- the contact area of the pressing roller to the rope is increased, and the frictional force between the pressing roller and the rope can be increased.
- the frictional force between the pressing rollers and the rope can be increased.
- the invention can deal with ropes of various rope diameters.
- the contact area of the pressing rollers to the rope via the belt can be increased, whereby the frictional force between the rollers and the rope via the belt can be increased.
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
An object of the invention is to provide a hoisting system
for an elevator which can reduce the weight of a traction type
elevator system.
Means for attaining the object is provided with a hoisting
system for an elevator, including a pressing roller for pressing
the rope against the outer circumferential surface of the sheave,
the pressing roller being rotatably supported on a
non-rotational member and having a pressing means for pressing
the roller against the rope, the pressing roller in its outer
circumference having an arc-like groove which is brought into
engagement with the rope, the outer circumference of the
pressing roller being made of an elastic material, the pressing
roller being constituted by at least a pair of pressing rollers
which are disposed substantially symmetrically relative to a
rotating center of the sheave, and the pressing roller being
movable relative to the rope and including a belt wrapped
between the pair of pressing rollers, whereby the pair of
pressing rollers press the rope against the outer
circumferential surface of the sheave via the belt wrapped
between the pair of pressing rollers.
Description
- The present invention relates to a hosing system for a traction type elevator. More particularly, the invention relates to a hoisting system for an elevator which includes a sheave connected to a motor for rotation a rope wrapped around an outer circumferential surface of the sheave for lifting up and down an elevator car.
- A hoisting system for a conventional traction type elevator will be described in Fig. 5. In Fig. 5, a sheave 1 is connected to a motor (not shown) for rotation. A
rope 2 is wrapped around an outer circumferential surface of the sheave 1. An elevator car 3 is connected to a suspending portion of therope 2. Acounterweight 4 is connected to the other suspending portion of therope 2. - There is a case where the sheave 1 is rotated by the motor via reduction gears (not shown).
- When the motor is driven to rotate, the elevator car 3 can be lifted up and down through the rotation of the sheave 1 and vertical movements of the
rope 2. - Then, the rotational driving force of the motor is transmitted to the
rope 2 by making use of only a frictional force between the outer circumferential surface of the sheave 1 and an circumferential surface of therope 2. The frictional force is obtained from friction coefficients of the sheave 1 and therope 2 and tension exerted by the elevator car 3 and thecounterweight 4. - However, as has been described above, in the hoisting system for the conventional traction type elevator, since the rotational driving force of the motor is transmitted to the
rope 2 based only on the frictional force between the outer circumferential surface of the sheave 1 and the circumferential surface of therope 2, in order to prevent the transmission of no rotational driving force of the motor to therope 2 due to slippage occurring between the sheave 1 and therope 2, the weights of the elevator car 3 and thecounterweight 4 were increased more than needed. Consequently, it has been difficult to reduce the weight of the traction type elevator system. - The invention was made in view of the above situation, and an object thereof is to provide a hoisting system for an elevator which can reduce the weight of a traction type elevator system.
- With a view to attaining the object, according to the invention, there is provided a hoisting system for an elevator including a sheave connected to a motor for rotation and a rope wrapped around an outer circumferential surface of the sheave so as to lift up and down an elevator car, the hoisting system being characterized by having a pressing roller for pressing the rope against the outer circumferential surface of the sheave. Namely, since the frictional force between the outer circumferential surface of the sheave and the circumferential surface of the rope is increased by the pressing roller, the weights of the elevator car 3 and the
counterweight 4 can be reduced. Consequently, there can be provided the hoisting system for an elevator which can reduce the weight of a traction type elevator system. - In addition, the invention is characterized in that the pressing roller is rotatably supported on a non-rotational member and is characterized by having a pressing means for pressing the roller against the rope. Consequently, the rotation of the pressing roller becomes smooth, and a strong pressing force against the rope and the sheave can be generated.
- Additionally, the invention is characterized in that the pressing roller has in its outer circumference an arc-like groove which is brought into engagement with the rope. Consequently, the contact area of the pressing roller to the rope is increased, and the frictional force between the pressing roller and the rope can be increased.
- In addition, the invention is characterized in that the outer circumference of the pressing roller is made of an elastic material. Namely, the outer circumference of the pressing roller can be deformed into an arc by following the circumference of the rope. Consequently, the contact area of the pressing roller to the rope is increased, and the frictional force between the pressing roller and the rope can be increased.
- Additionally, the invention is characterized in that the pressing roller is made up of at least a pair of pressing rollers which are disposed substantially symmetrically relative to a rotating center of the sheave. Consequently, when compared with a case where a single pressing roller is provided, the frictional force between the pressing rollers and the rope can be increased.
- In addition, the invention is characterized in that the pressing roller is movable relative to the rope. Consequently, the invention can deal with ropes of various rope diameters.
- Additionally, the invention is characterized by including a belt wrapped between the pair of pressing rollers, whereby the pair of pressing rollers press the rope against the outer circumferential surface of the sheave via the belt wrapped between the pair of pressing rollers. Consequently, the contact area of the pressing rollers to the rope via the belt can be increased, whereby the frictional force between the rollers and the rope via the belt can be increased.
-
- Fig. 1 is a drawing showing a first embodiment of the invention.
- Fig. 2 is a detailed cross-sectional view of a pressing roller portion according to the first embodiment of the invention.
- Fig. 3 is a drawing showing another example of a pressing roller according to the invention.
- Fig. 4 is a drawing showing a second embodiment of the invention.
- Fig. 5 is a drawing showing a hoisting system for a conventional traction type elevator.
-
- A first embodiment of the invention will be described below based on the drawings. Figs. 1 and 2,
reference numeral 100 denotes a hoisting system for an elevator which is applied to a traction type elevator system. Afixing member 10 is mounted on a stationary location of the traction type elevator system. The rotation of a motor (not shown) is transmitted to aninput portion 111 of asheave 11 via reduction gears (not shown). Namely, thesheave 11 is connected to the motor for rotation. - A
rope 12 is wrapped around agroove portion 131 in an outercircumferential surface 13 of thesheave 11 so as to lift up and down anelevator car 14. Theelevator car 14 is connected to a suspending portion of therope 12. Acounterweight 15 is connected to the other suspending portion of therope 12. A pair ofpressing rollers 16 are disposed substantially symmetrically relative to a rotating center of thesheave 11, so that therope 12 is pressed against the outercircumferential surface 13 of thesheave 11. To be specific, the pair ofpressing rollers 16 are disposed substantially symmetrically in a lateral direction relative to a vertical including the rotating center of thesheave 11. The pair ofpressing rollers 16 has in the outer circumference thereof an arc-like groove 17 which is brought into engagement with the rope. Eachpressing roller 16 is rotatably supported on a shaft 18 (a non-rotational member) via a pair ofbearings 19. - A spring 20 (a pressing means) presses each pressing
roller 16 against therope 12. Since eachspring 20 can expand and contract, each pressing roller is movable relative to the rope. - In addition, the pressing force of each
pressing roller 16 against therope 12 can be adjusted appropriately by allowing a fixing portion where the pressing means (the spring 20) is fixed to thefixing member 10 to move relative to thefixing member 10. the pressing force of eachpressing roller 16 against therope 12 can be adjusted appropriately by setting an appropriate spring constant for thespring 20. - An end of the
spring 20 is supported on thefixing member 10 and the other end thereof is connected to acircumferential groove 21 in theshaft 18.Shaft snap rings 23 are used not only to locate the pair ofbearings 19 but also to prevent the dislocation thereof. - Next, the operation of the first embodiment of the invention will be described.
- The pair of
pressing rollers 16 are pressing therope 12 against the outer circumferential surface of thesheave 11 via thesprings 20 at all times. Namely, the frictional force between the outer circumferential surface of thesheave 11 and the circumferential surface of therope 12 is increased by the pair ofpressing rollers 16. Consequently, the weights of the elevator car 3 and thecounterweight 4 can be reduced. - Another example of a pair of pressing rollers according to the invention will be described based on the drawing. In Fig. 3, in each
pressing roller 200, a cylindricalelastic body 202 of a rubber or silicone is held around an outer circumference of a metallic rollermain body 201. Similar to the pressing roller of the first embodiment, the rollermain body 201 is rotatably supported on a shaft 203 (a non-rotational member) via a pair ofbearings 204. - Even in the event that no arc-like groove is formed in the outer circumference of the
pressing roller 200, as in the case with the first embodiment, the outer circumference of thepressing roller 200 can be deformed into an arc by following the circumference of therope 12. Consequently, the contact area (contact resistance) of thepressing roller 200 to therope 12 is increased, whereby the frictional force between thepressing roller 200 and therope 12 can be increased (a greater frictional resistance). - It is not necessary that the
elastic body 202 is separately held on the outer circumference of thepressing roller 200, but the rollermain body 201 itself may form a cylindrical elastic body. - Next, a second embodiment of the invention will be described based on the drawing. In Fig. 4,
reference numeral 300 denotes a hoisting system for an elevator which is applied to a traction type elevator system. A fixingmember 310 is mounted on a stationary location of the traction type elevator system. The rotation of a motor (not shown) is transmitted to aninput portion 333 of asheave 311 via reduction gears (not shown). Namely, thesheave 311 is connected to the motor for rotation. - A
rope 312 is wrapped around a groove portion (not shown) in an outercircumferential surface 313 of thesheave 311 so as to lift up and down an elevator car (not shown). The elevator car is connected to a suspending portion of therope 312. A counterweight (not shown) is connected to the other suspending portion of therope 312. A pair of pressingrollers 316 are disposed substantially symmetrically relative to a rotating center of thesheave 311, so that therope 312 is pressed against the outercircumferential surface 313 of thesheave 311. To be specific, the pair of pressingrollers 316 are disposed substantially symmetrically in a lateral direction relative to a vertical including the rotating center of thesheave 311. Abelt 317 is wrapped around outer circumferential surfaces of the pair of pressingrollers 316. The pair of pressingrollers 316 press therope 312 against the outer circumferential surface of thesheave 311 via thebelt 317. - As in the case with the first embodiment, each
pressing roller 316 is rotatably supported on a shaft 318 (a non-rotational member) via a pair of bearings (not shown). - A spring 320 (a pressing means) presses each
pressing roller 316 against therope 312. Since each spring3 20 can expand and contract, eachpressing roller 316 is movable relative to therope 312. - An end of the
spring 320 is supported on the fixingmember 310 and the other end thereof is connected to a circumferential groove (not shown) in theshaft 318. - Next, the operation of the second embodiment of the invention will be described.
- In Fig. 4, the pair of pressing
rollers 316 are pressing therope 312 against the outer circumferential surface of thesheave 311 via thebelt 317 by thesprings 320 at all times. Namely, the contact area (contact resistance) of thepressing rollers 316 to therope 312 via thebelt 317 is increased, whereby the frictional force between thepressing rollers 316 and therope 312 via thebelt 317 can be increased (a greater frictional resistance). - Note that while in the invention, the roping mode has been described as a 1-to-1 mode, the invention is not limited to the 1-to-1 roping mode.
- As has been described heretofore, according to a first aspect of the invention, there can be provided the hoisting system for an elevator which can reduce the weight of a traction type elevator system.
- According to a second aspect of the invention, the rotation of the pressing roller becomes smooth, and a strong pressing force against the rope and the sheave can be generated.
- According to a third aspect of the invention, the contact area of the pressing roller to the rope is increased, and the frictional force between the pressing roller and the rope can be increased.
- According to a fourth aspect of the invention, the contact area of the pressing roller to the rope is increased, and the frictional force between the pressing roller and the rope can be increased.
- According to a fifth aspect of the invention, when compared with a case where a single pressing roller is provided, the frictional force between the pressing rollers and the rope can be increased.
- According to a sixth aspect of the invention, the invention can deal with ropes of various rope diameters.
- According to a seventh aspect of the invention, the contact area of the pressing rollers to the rope via the belt can be increased, whereby the frictional force between the rollers and the rope via the belt can be increased.
Claims (7)
- A hoisting system for an elevator comprising a sheave connected to a motor for rotation and a rope wrapped around an outer circumferential surface of the sheave so as to lift up and down an elevator car, the hoisting system being characterized by having a pressing roller for pressing the rope against the outer circumferential surface of the sheave.
- A hoisting system for an elevator as set forth in Claim 1, characterized in that the pressing roller is rotatably supported on a non-rotational member and characterized by having a pressing means for pressing the roller against the rope.
- A hoisting system for an elevator as set forth in Claim 1 or 2, characterized in that the pressing roller has in its outer circumference an arc-like groove which is brought into engagement with the rope.
- A hoisting system for an elevator as set forth in Claim 1 or 2, characterized in that the outer circumference of the pressing roller is made of an elastic material.
- A hoisting system for an elevator as set forth in Claim 1 or 2, characterized in that the pressing roller is made up of at least a pair of pressing rollers which are disposed substantially symmetrically relative to a rotating center of the sheave.
- A hoisting system for an elevator as set forth in Claim 1 or 2, characterized in that the pressing roller is movable relative to the rope.
- A hoisting system for an elevator as set forth in Claim 5, characterized by comprising a belt wrapped between the pair of pressing rollers, whereby the pair of pressing rollers press the rope against the outer circumferential surface of the sheave via the belt wrapped between the pair of pressing rollers.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002195299 | 2002-07-03 | ||
JP2002195299 | 2002-07-03 | ||
PCT/JP2003/008368 WO2004005179A1 (en) | 2002-07-03 | 2003-07-01 | Hoisting apparatus for elevator |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1555235A1 true EP1555235A1 (en) | 2005-07-20 |
Family
ID=30112331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03738615A Withdrawn EP1555235A1 (en) | 2002-07-03 | 2003-07-01 | Hoisting apparatus for elevator |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1555235A1 (en) |
JP (1) | JPWO2004005179A1 (en) |
KR (1) | KR20050037517A (en) |
CN (1) | CN1681730A (en) |
AU (1) | AU2003246203A1 (en) |
TW (1) | TW200401743A (en) |
WO (1) | WO2004005179A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5083595B2 (en) * | 2007-02-20 | 2012-11-28 | 株式会社ダイフク | Lifting device in stacker crane |
CN102174952A (en) * | 2011-03-03 | 2011-09-07 | 浙江工业大学 | Steel belt drive device based on roller compaction |
KR101054013B1 (en) * | 2011-04-14 | 2011-08-04 | 주식회사 한테크 | Traction machine for elevator |
CN102756958A (en) * | 2012-08-06 | 2012-10-31 | 吴江信谊精密五金有限公司 | Elevator hoisting rope protective device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS524814B2 (en) * | 1972-01-10 | 1977-02-07 | ||
JPS5024962A (en) * | 1973-07-06 | 1975-03-17 | ||
JPH11292423A (en) * | 1998-04-15 | 1999-10-26 | Hitachi Building Systems Co Ltd | Installation device for elevator |
CN1283544C (en) * | 2001-02-16 | 2006-11-08 | 富士达株式会社 | Both-way movable body driving mechanism and elevator device using the same |
-
2003
- 2003-07-01 WO PCT/JP2003/008368 patent/WO2004005179A1/en not_active Application Discontinuation
- 2003-07-01 JP JP2004519225A patent/JPWO2004005179A1/en active Pending
- 2003-07-01 EP EP03738615A patent/EP1555235A1/en not_active Withdrawn
- 2003-07-01 AU AU2003246203A patent/AU2003246203A1/en not_active Abandoned
- 2003-07-01 CN CNA03815496XA patent/CN1681730A/en active Pending
- 2003-07-01 KR KR1020047021468A patent/KR20050037517A/en not_active Application Discontinuation
- 2003-07-03 TW TW092118219A patent/TW200401743A/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2004005179A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2004005179A1 (en) | 2004-01-15 |
CN1681730A (en) | 2005-10-12 |
JPWO2004005179A1 (en) | 2005-11-04 |
KR20050037517A (en) | 2005-04-22 |
TW200401743A (en) | 2004-02-01 |
AU2003246203A1 (en) | 2004-01-23 |
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