EP1705148A1 - Elevator hoist - Google Patents
Elevator hoist Download PDFInfo
- Publication number
- EP1705148A1 EP1705148A1 EP04702435A EP04702435A EP1705148A1 EP 1705148 A1 EP1705148 A1 EP 1705148A1 EP 04702435 A EP04702435 A EP 04702435A EP 04702435 A EP04702435 A EP 04702435A EP 1705148 A1 EP1705148 A1 EP 1705148A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheave
- rotary portion
- drive sheave
- hoisting machine
- shaft
- 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- Withdrawn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
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
- B66B11/0438—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with a gearless driving, e.g. integrated sheave, drum or winch in the stator or rotor of the cage motor
Definitions
- the present invention relates to an elevator hoisting machine in which a drive sheave around which a main rope of an elevator is wound is provided to a rotary portion.
- a drive sheave around which a main rope is wound is provided integrally with a rotary member (cup-shaped member). Further, the rotary member is rotatably supported by a main shaft.
- the main shaft is supported by a support plate and a base member at its opposite end portions.
- an elevator hoisting machine comprising: a base member; a rotary portion having a rotary portion main body, and a drive sheave around which a main rope of an elevator is wound, the rotary portion being rotatably supported by the base member; and a motor having a motor rotor mounted to the rotary portion main body, and a motor stator mounted to the base member such that the motor stator is opposed to the motor rotor, the motor causing the rotary portion to rotate, wherein the rotary portion main body is provided with a sheave fixing portion to which the drive sheave is fixed.
- the present invention is made in order to overcome the problem as described above, and therefore it is an object of the present invention to provide an elevator hoisting machine capable of achieving commonality of parts between the case where a cantilever support structure is adopted for a drive sheave and the case where a double-cantilever support structure is adopted for the same.
- Fig. 1 is a sectional view of an elevator hoisting machine of a cantilever support structure according to Embodiment 1 of the present invention.
- a base member 1 is a stationary-side part fixed to a hoisting machine installation portion. Further, the base member 1 has a dish-shaped portion 1a, an outer cylinder portion 1b extending to one side from the outer peripheral portion of the dish-shaped portion 1a, and a main shaft 1c protruding to one side from the central portion of the dish-shaped portion 1a.
- the dish-shaped portion 1a, the outer cylinder portion, and the main shaft 1c are formed integrally with the base member 1.
- a recessed portion 1d Formed at the central portion of the dish-shaped portion 1a on the side opposite the main shaft 1c is a recessed portion 1d recessed with respect to the outer peripheral portion. This imparts the dish-shaped portion 1a with a dish-like, rather than planar, configuration.
- a through-hole 1e Provided at the center of the main shaft 1c is a through-hole 1e extending in the axial direction of the main shaft 1c and penetrating the main shaft 1c.
- a rotary portion 3 is supported on the main shaft 1c through the intermediation of a bearing 2.
- the rotary portion 3 is rotatable about the main shaft 1c.
- the rotary portion 3 has a rotary portion main body 4 having the bearing 2 mounted onto its inner peripheral portion, and a cylindrical drive sheave 5 fixed onto the outer peripheral portion of the rotary portion main body 4.
- the rotary portion main body 4 has a cylindrical bearing mounting portion 4a surrounding the main shaft 1c, a sheave fixing portion (step portion) 4b provided in the outer peripheral portion of the bearing mounting portion 4a, and an inner cylinder portion 4c arranged on the inner side with respect to the outer cylinder portion 1b.
- the bearing mounting portion 4a, the sheave fixing portion 4b, and the inner cylinder portion 4c are formed integrally with the rotary portion main body 4.
- the drive sheave 5 is formed separately from the rotary portion main body 4 and fixed to the sheave fixing portion 4b.
- a plurality of main ropes for suspending an elevator car and a counterweight are wound around the drive sheave 5.
- Provided in the outer peripheral surface of the drive sheave 5 are a plurality of rope grooves in which the main ropes are inserted.
- An armature 6 as a motor rotor is fixed to the outer peripheral surface of the inner cylinder portion 4c.
- Fixed to the inner peripheral surface of the outer cylinder portion 1b is a stator winding 7 as a motor rotor opposed to the armature 6.
- the rotary portion 3 is rotated by the drive force of a motor 8 having the armature 6 and the stator winding 7.
- a rotation detecting shaft 9 that rotates integrally with the rotary portion 3.
- a disc-shaped stationary portion 9a fixed to an axial end portion of the bearing mounting portion 4a. The other end portion of the rotation detecting shaft 9 projects into the depression 1d from the through-hole 1e.
- a rotation detector 10 for detecting the rotation of the rotation detecting shaft 9.
- the rotation detector 10 is arranged within the depression 1d. Used as the rotation detector 10 is an encoder or the like, for example, whose specific construction is omitted in the drawing.
- the hoisting machine used is a thin hoisting machine whose overall axial dimension is smaller than the drive sheave 5 or its overall radial dimension.
- Fig. 2 is a sectional view showing a state in which the elevator hoisting machine of Fig. 1 is of a double-cantilever support structure.
- the base member 1 is fixed to a support stand 11.
- Fixed to the support stand 11 is a support frame 12 arranged at a spacing from the base member 1.
- a drive sheave 13 whose axial dimension is larger than that of the drive sheave 5 of Fig. 1 is fixed to the sheave fixing portion 4b.
- the drive sheave 13 is supported by the base member 1 through the intermediation of the rotary portion main body 4 and is also rotatably supported by the support frame 12.
- a sheave shaft 13a protruding to one side.
- the support frame 12 rotatably supports the sheave shaft 13a through the intermediation of a bearing 14.
- a shaft receiving hole 12a Provided in the support shaft 12 is a shaft receiving hole 12a in which the bearing 14 is fitted. Otherwise, the construction is the same as that shown in Fig. 1.
- Fig. 3 is a perspective view showing the outward appearance of the elevator hoisting machine of Fig. 2.
- the elevator hoisting machine is provided with a brake device 15 for braking the rotation of the rotary portion 3.
- the above-described elevator hoisting machine can be used as a hoisting machine of a cantilever support structure by fixing the cantilever-support drive sheave 5 to the sheave fixing portion 4b of the rotary portion main body 4. Further, when, as shown in Fig. 2, the drive sheave 13 for double cantilevered support is fixed to the sheave fixing portion 4b and the drive sheave 13 is supported by the support frame 12, the above elevator hoisting machine can be used as a hoisting machine of a double-cantilever support structure.
- one of two kinds of drive sheaves, the drive sheave 5 of the kind which is supported only by the rotary portion main body 4, and the drive sheave 13 of the kind which is supported by both the support frame 12 and the rotary portion main body 4, is selectively fixed to the sheave fixing portion 4b.
- one kind of drive sheave is selectively fixed to the sheave fixing portion 4b.
- This structure makes it possible to achieve commonality of many parts, such as the base member 1, the rotary portion main body 4, the motor 8, the rotation detecting shaft 9, and the rotation detector 10, between the case where a cantilever support structure is adopted as the supporting structure for the drive sheave and the case where a double-cantilever support structure is adopted for the same, thereby achieving a reduction in cost.
- the overall structure can be made compact, allowing its installation in, for example, an upper or lower portion of the hoistway in a machine room-less elevator.
- main shaft 1c is formed integrally with the base member 1, thereby achieving a reduction in the number of parts.
- Fig. 4 is a sectional view showing a state where an elevator hoisting machine according to Embodiment 2 of the present invention is of a double-cantilever support structure. While in Embodiment 1 the sheave shaft 13a and the drive sheave 13 are formed integrally with each other, a sheave shaft 16 separate from the drive sheave 13 is fixed to the drive sheave 13 in Embodiment 2. The sheave shaft 16 protrudes to one side of the drive sheave 13 and is rotatably supported by the support frame 12 through the intermediation of the bearing 14. The rotation detecting shaft 9 is fixed to the sheave shaft 16. Otherwise, Embodiment 2 is of the same construction as Embodiment 1. Further, the state where a cantilever support structure is adopted is the same as that shown in Fig. 1.
- sheave shaft 16 and the drive sheave 13 may be formed separate from each other.
- Fig. 5 is a sectional view showing a state where an elevator hoisting machine according to Embodiment 3 of the present invention is of a double-cantilever support structure. While in Embodiment 1 the sheave shaft 13a is provided to the drive sheave 13, a sheave shaft 17 separate from the drive sheave 13 and the support frame 12 is fixed to the support frame 12 in Embodiment 3. Further, the drive sheave 13 is rotatably supported by the sheave shaft 17 through the intermediation of the bearing 14. The rotation detecting shaft 9 is fixed to the drive sheave 13. Otherwise, Embodiment 3 is of the same construction as Embodiment 1. Further, the state where a cantilever support structure is adopted is the same as that shown in Fig. 1.
- the drive sheave 13 may be rotatably supported by the sheave shaft 17 fixed to the support frame 12.
- Fig, 6 is a perspective view showing an example of the overall construction of an elevator apparatus to which the elevator hoisting machine of the present invention is applied.
- a hoistway 21 installed in a hoistway 21 are a pair of guide rails 22 and a pair of counterweight guide rails 23.
- a car 24 is caused to ascend and descend in the hoistway 21 as it is guided by the car guide rails 22.
- a counterweight 25 is caused to ascend and descend in the hoistway 21 as it is guided by the counterweight guide rails 23.
- a machine unit box 26 is placed on top of the hoistway 21.
- the machine unit box 26 accommodates a hoisting machine 27 such as one illustrated in any one of Embodiments 1 through 3.
- the hoisting machine 27 is placed such that the rotation axis of the drive sheave 5, 13 becomes horizontal.
- a main rope 28 is wound around the drive sheave 5, 13.
- the car 24 is suspended at one end portion of the main rope 28.
- the counterweight 25 is suspended at the other end portion of the main rope 28. That is, the car 24 and the counterweight 25 are suspended by means of a 1:1 roping system.
- control panel 29 for controlling the hoisting machine 27 is installed in the hoistway 21.
- main shaft 1c is fixed to the base member 1, it is also possible to provide the main shaft to the rotary portion so that the main shaft is rotatably supported by the base member.
- the hoisting machine of the present invention is applicable to various types of elevator apparatuses other than the elevator apparatus of the type shown in Fig. 6.
- the present invention is also applicable to both an elevator apparatus in which the hoisting machine is installed in the machine room and a machine room-less elevator apparatus in which the hoisting machine is arranged in the hoistway.
- the hoisting machine may be arranged in a lower portion of the hoistway.
- the roping system is not limited to 1:1 roping but may be, for example, 2:1 roping.
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- 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
Description
- The present invention relates to an elevator hoisting machine in which a drive sheave around which a main rope of an elevator is wound is provided to a rotary portion.
- In the conventional elevator hoisting machine disclosed in
JP 2000-289954 A - It is desirable, however, to change the supporting structure for the rotary member according to the weights of a car and a counterweight. That is, when the weights of the car and the counterweight are relatively large, the rotary member should be supported on both sides; however, when the weights of the car and the counterweight are relatively small, it is desirable to adopt a cantilever structure as the supporting structure for the rotary member. Conventionally, such a change in the supporting structure adopted necessitates manufacture of two kinds of hoisting machines differing from each other in most of their respective component parts.
- To this end, according to one aspect of the present invention, there is provided an elevator hoisting machine comprising: a base member; a rotary portion having a rotary portion main body, and a drive sheave around which a main rope of an elevator is wound, the rotary portion being rotatably supported by the base member; and a motor having a motor rotor mounted to the rotary portion main body, and a motor stator mounted to the base member such that the motor stator is opposed to the motor rotor, the motor causing the rotary portion to rotate, wherein the rotary portion main body is provided with a sheave fixing portion to which the drive sheave is fixed.
- The present invention is made in order to overcome the problem as described above, and therefore it is an object of the present invention to provide an elevator hoisting machine capable of achieving commonality of parts between the case where a cantilever support structure is adopted for a drive sheave and the case where a double-cantilever support structure is adopted for the same.
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- Fig. 1 is a sectional view showing an elevator hoisting machine of a cantilever support structure according to Embodiment 1 of the present invention;
- Fig. 2 is a sectional view showing a state in which the elevator hoisting machine of Fig. 1 is of a double-cantilever support structure;
- Fig. 3 is a perspective view showing the outward appearance of the elevator hoisting machine of Fig. 2;
- Fig. 4 is a sectional view showing a state in which an elevator hoisting machine according to
Embodiment 2 of the present invention is of a double-cantilever support structure; - Fig. 5 is a sectional view showing a state in which an elevator hoisting machine according to
Embodiment 3 of the present invention is of a double-cantilever support structure; and - Fig. 6 is a perspective view showing an example of the overall construction of an elevator apparatus to which the elevator hoisting machine of the present invention is applied.
- Hereinbelow, preferred embodiments of the present invention are described with reference to the drawings.
- Fig. 1 is a sectional view of an elevator hoisting machine of a cantilever support structure according to Embodiment 1 of the present invention. In the figure, a base member 1 is a stationary-side part fixed to a hoisting machine installation portion. Further, the base member 1 has a dish-shaped portion 1a, an outer cylinder portion 1b extending to one side from the outer peripheral portion of the dish-shaped portion 1a, and a main shaft 1c protruding to one side from the central portion of the dish-shaped portion 1a. The dish-shaped portion 1a, the outer cylinder portion, and the main shaft 1c are formed integrally with the base member 1.
- Formed at the central portion of the dish-shaped portion 1a on the side opposite the main shaft 1c is a recessed portion 1d recessed with respect to the outer peripheral portion. This imparts the dish-shaped portion 1a with a dish-like, rather than planar, configuration. Provided at the center of the main shaft 1c is a through-hole 1e extending in the axial direction of the main shaft 1c and penetrating the main shaft 1c.
- A
rotary portion 3 is supported on the main shaft 1c through the intermediation of abearing 2. Therotary portion 3 is rotatable about the main shaft 1c. Further, therotary portion 3 has a rotary portionmain body 4 having thebearing 2 mounted onto its inner peripheral portion, and acylindrical drive sheave 5 fixed onto the outer peripheral portion of the rotary portionmain body 4. - The rotary portion
main body 4 has a cylindricalbearing mounting portion 4a surrounding the main shaft 1c, a sheave fixing portion (step portion) 4b provided in the outer peripheral portion of thebearing mounting portion 4a, and aninner cylinder portion 4c arranged on the inner side with respect to the outer cylinder portion 1b. Thebearing mounting portion 4a, thesheave fixing portion 4b, and theinner cylinder portion 4c are formed integrally with the rotary portionmain body 4. - The
drive sheave 5 is formed separately from the rotary portionmain body 4 and fixed to thesheave fixing portion 4b. A plurality of main ropes for suspending an elevator car and a counterweight are wound around thedrive sheave 5. Provided in the outer peripheral surface of thedrive sheave 5 are a plurality of rope grooves in which the main ropes are inserted. - An
armature 6 as a motor rotor is fixed to the outer peripheral surface of theinner cylinder portion 4c. Fixed to the inner peripheral surface of the outer cylinder portion 1b is a stator winding 7 as a motor rotor opposed to thearmature 6. Therotary portion 3 is rotated by the drive force of amotor 8 having thearmature 6 and the stator winding 7. - Inserted through the through-hole 1e is a
rotation detecting shaft 9 that rotates integrally with therotary portion 3. Provided at one end portion of therotation detecting shaft 9 is a disc-shapedstationary portion 9a fixed to an axial end portion of thebearing mounting portion 4a. The other end portion of therotation detecting shaft 9 projects into the depression 1d from the through-hole 1e. - Mounted to the dish-shaped portion 1a is a
rotation detector 10 for detecting the rotation of therotation detecting shaft 9. Therotation detector 10 is arranged within the depression 1d. Used as therotation detector 10 is an encoder or the like, for example, whose specific construction is omitted in the drawing. - Further, the hoisting machine used is a thin hoisting machine whose overall axial dimension is smaller than the
drive sheave 5 or its overall radial dimension. - Next, Fig. 2 is a sectional view showing a state in which the elevator hoisting machine of Fig. 1 is of a double-cantilever support structure. Referring to the figure, the base member 1 is fixed to a support stand 11. Fixed to the support stand 11 is a
support frame 12 arranged at a spacing from the base member 1. Adrive sheave 13 whose axial dimension is larger than that of thedrive sheave 5 of Fig. 1 is fixed to thesheave fixing portion 4b. Thedrive sheave 13 is supported by the base member 1 through the intermediation of the rotary portionmain body 4 and is also rotatably supported by thesupport frame 12. - Provided integrally with the
drive sheave 13 is asheave shaft 13a protruding to one side. Thesupport frame 12 rotatably supports thesheave shaft 13a through the intermediation of abearing 14. Provided in thesupport shaft 12 is ashaft receiving hole 12a in which thebearing 14 is fitted. Otherwise, the construction is the same as that shown in Fig. 1. - Fig. 3 is a perspective view showing the outward appearance of the elevator hoisting machine of Fig. 2. The elevator hoisting machine is provided with a
brake device 15 for braking the rotation of therotary portion 3. - As shown in Fig. 1, the above-described elevator hoisting machine can be used as a hoisting machine of a cantilever support structure by fixing the cantilever-
support drive sheave 5 to thesheave fixing portion 4b of the rotary portionmain body 4. Further, when, as shown in Fig. 2, thedrive sheave 13 for double cantilevered support is fixed to thesheave fixing portion 4b and thedrive sheave 13 is supported by thesupport frame 12, the above elevator hoisting machine can be used as a hoisting machine of a double-cantilever support structure. - That is, one of two kinds of drive sheaves, the
drive sheave 5 of the kind which is supported only by the rotary portionmain body 4, and thedrive sheave 13 of the kind which is supported by both thesupport frame 12 and the rotary portionmain body 4, is selectively fixed to thesheave fixing portion 4b. In other words, of the plural kinds ofdrive shaves sheave fixing portion 4b. - This structure makes it possible to achieve commonality of many parts, such as the base member 1, the rotary portion
main body 4, themotor 8, therotation detecting shaft 9, and therotation detector 10, between the case where a cantilever support structure is adopted as the supporting structure for the drive sheave and the case where a double-cantilever support structure is adopted for the same, thereby achieving a reduction in cost. - Further, the overall structure can be made compact, allowing its installation in, for example, an upper or lower portion of the hoistway in a machine room-less elevator.
- Further, the main shaft 1c is formed integrally with the base member 1, thereby achieving a reduction in the number of parts.
- Next, Fig. 4 is a sectional view showing a state where an elevator hoisting machine according to
Embodiment 2 of the present invention is of a double-cantilever support structure. While in Embodiment 1 thesheave shaft 13a and thedrive sheave 13 are formed integrally with each other, asheave shaft 16 separate from thedrive sheave 13 is fixed to thedrive sheave 13 inEmbodiment 2. Thesheave shaft 16 protrudes to one side of thedrive sheave 13 and is rotatably supported by thesupport frame 12 through the intermediation of thebearing 14. Therotation detecting shaft 9 is fixed to thesheave shaft 16. Otherwise,Embodiment 2 is of the same construction as Embodiment 1. Further, the state where a cantilever support structure is adopted is the same as that shown in Fig. 1. - In this way, the
sheave shaft 16 and thedrive sheave 13 may be formed separate from each other. - Next, Fig. 5 is a sectional view showing a state where an elevator hoisting machine according to
Embodiment 3 of the present invention is of a double-cantilever support structure. While in Embodiment 1 thesheave shaft 13a is provided to thedrive sheave 13, asheave shaft 17 separate from thedrive sheave 13 and thesupport frame 12 is fixed to thesupport frame 12 inEmbodiment 3. Further, thedrive sheave 13 is rotatably supported by thesheave shaft 17 through the intermediation of thebearing 14. Therotation detecting shaft 9 is fixed to thedrive sheave 13. Otherwise,Embodiment 3 is of the same construction as Embodiment 1. Further, the state where a cantilever support structure is adopted is the same as that shown in Fig. 1. - In this way, the
drive sheave 13 may be rotatably supported by thesheave shaft 17 fixed to thesupport frame 12. - Here, Fig, 6 is a perspective view showing an example of the overall construction of an elevator apparatus to which the elevator hoisting machine of the present invention is applied. Referring to the figure, installed in a
hoistway 21 are a pair ofguide rails 22 and a pair of counterweight guide rails 23. Acar 24 is caused to ascend and descend in thehoistway 21 as it is guided by the car guide rails 22. Acounterweight 25 is caused to ascend and descend in thehoistway 21 as it is guided by the counterweight guide rails 23. - A
machine unit box 26 is placed on top of thehoistway 21. Themachine unit box 26 accommodates a hoistingmachine 27 such as one illustrated in any one of Embodiments 1 through 3. The hoistingmachine 27 is placed such that the rotation axis of thedrive sheave - A
main rope 28 is wound around thedrive sheave car 24 is suspended at one end portion of themain rope 28. Thecounterweight 25 is suspended at the other end portion of themain rope 28. That is, thecar 24 and thecounterweight 25 are suspended by means of a 1:1 roping system. - Further, a
control panel 29 for controlling the hoistingmachine 27 is installed in thehoistway 21. - With the elevator apparatus as described above, the rotation of the
drive sheave car 24 and thecounterweight 25 to ascend and descend in thehoistway 21 along the guide rails 22, 23, respectively. - While in the above-described example the main shaft 1c is fixed to the base member 1, it is also possible to provide the main shaft to the rotary portion so that the main shaft is rotatably supported by the base member.
- Further, while the two kinds of
drive sheaves - Further, the hoisting machine of the present invention is applicable to various types of elevator apparatuses other than the elevator apparatus of the type shown in Fig. 6. For example, the present invention is also applicable to both an elevator apparatus in which the hoisting machine is installed in the machine room and a machine room-less elevator apparatus in which the hoisting machine is arranged in the hoistway. Further, the hoisting machine may be arranged in a lower portion of the hoistway. Further, the roping system is not limited to 1:1 roping but may be, for example, 2:1 roping.
Claims (9)
- An elevator hoisting machine comprising:a base member;a rotary portion having a rotary portion main body, and a drive sheave around which a main rope of an elevator is wound, the rotary portion being rotatably supported by the base member; anda motor having a motor rotor mounted to the rotary portion main body, and a motor stator mounted to the base member such that the motor stator is opposed to the motor rotor, the motor causing the rotary portion to rotate,wherein the rotary portion main body is provided with a sheave fixing portion to which the drive sheave is fixed.
- The elevator hoisting machine according to Claim 1, wherein the base member has an outer cylinder portion to which the motor stator is fixed, and a main shaft protruding to one side, and
wherein the rotary portion main body has an inner cylinder portion arranged on an inner side with respect to the outer cylinder portion and to which the motor rotor is mounted, and is supported by the main shaft such that the rotary portion main body is rotatable about the main shaft. - The elevator hoisting machine according to Claim 2, wherein the main shaft has a through-hole provided at its center, the through-hole extending in an axial direction of the main shaft and penetrating the main shaft,
wherein the rotary portion is provided with a rotation detecting shaft inserted through the through-hole and rotating integrally with the rotary portion, and
wherein the base member is provided with a rotation detector that detects rotation of the rotation detecting shaft. - The elevator hoisting machine according to Claim 1, wherein from among the drive sheave of a kind that is supported by only the rotary portion main body and the drive sheave of a kind that is supported by both a support frame, which is arranged at a spacing from the base member, and the rotary portion main body, one kind of the drive sheave is selectively fixed to the drive sheave fixing portion.
- The elevator hoisting machine according to Claim 1, wherein from among plural kinds of the drive sheaves differing in axial length, one kind of the drive sheave is selectively fixed to the sheave fixing portion.
- The elevator hoisting machine according to Claim 1, further comprising a support frame arranged at a spacing from the base member,
wherein the drive sheave is supported by the base member through the rotary portion main body and is rotatably supported by the support frame. - The elevator hoisting machine according to Claim 6, wherein the drive sheave has a sheave shaft protruding to one side, and the support frame rotatably supports the sheave shaft.
- The elevator hoisting machine according to Claim 6, wherein a sheave shaft separate from the drive sheave is fixed to the drive sheave, the sheave shaft being rotatably supported by the support frame.
- The elevator hoisting machine according to Claim 6, wherein the support frame is provided with a sheave shaft protruding toward the drive sheave, the drive sheave being rotatably supported by the sheave shaft.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2004/000235 WO2005068338A1 (en) | 2004-01-15 | 2004-01-15 | Elevator hoist |
Publications (2)
Publication Number | Publication Date |
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EP1705148A1 true EP1705148A1 (en) | 2006-09-27 |
EP1705148A4 EP1705148A4 (en) | 2011-08-31 |
Family
ID=34792050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04702435A Withdrawn EP1705148A4 (en) | 2004-01-15 | 2004-01-15 | Elevator hoist |
Country Status (4)
Country | Link |
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EP (1) | EP1705148A4 (en) |
JP (1) | JPWO2005068338A1 (en) |
CN (1) | CN100337899C (en) |
WO (1) | WO2005068338A1 (en) |
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CN102935969A (en) * | 2012-11-30 | 2013-02-20 | 桑中海 | Elevator traction machine and detachment tool thereof |
EP3385209A1 (en) * | 2017-04-07 | 2018-10-10 | Hitachi, Ltd. | Hoist machine and elevator |
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JP5776163B2 (en) * | 2010-10-15 | 2015-09-09 | 株式会社明電舎 | Hoisting machine |
JP5856908B2 (en) * | 2012-05-31 | 2016-02-10 | 株式会社日立製作所 | Elevator hoisting machine |
CN105764831B (en) * | 2014-02-21 | 2017-08-04 | 株式会社日立制作所 | Lift appliance |
WO2015186222A1 (en) * | 2014-06-05 | 2015-12-10 | 三菱電機株式会社 | Elevator hoist and method for fastening rope sheave for elevator hoist |
CN105270969A (en) * | 2014-06-09 | 2016-01-27 | 上海三菱电梯有限公司 | Tractor for elevator |
JP6712094B2 (en) * | 2017-07-07 | 2020-06-17 | 三菱電機株式会社 | Elevator hoist |
CN110027969A (en) | 2018-01-11 | 2019-07-19 | 奥的斯电梯公司 | Traction thermomechanical components and elevator |
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DE19906727C1 (en) * | 1999-02-18 | 2000-06-08 | System Antriebstechnik Dresden | Gearbox-less machine for lift system, has synchronous external rotor motor with rotor monitoring measurement system arranged inside axial brake and before rotor shaft end |
JP3537348B2 (en) * | 1999-04-05 | 2004-06-14 | 三菱電機株式会社 | Traction elevator hoist |
JP2003104666A (en) * | 2001-09-28 | 2003-04-09 | Meidensha Corp | Hoisting machine and elevator device |
JP2003267648A (en) * | 2002-03-15 | 2003-09-25 | Mitsubishi Electric Corp | Elevator hoist |
-
2004
- 2004-01-15 JP JP2005516940A patent/JPWO2005068338A1/en active Pending
- 2004-01-15 EP EP04702435A patent/EP1705148A4/en not_active Withdrawn
- 2004-01-15 CN CNB200480002089XA patent/CN100337899C/en not_active Expired - Fee Related
- 2004-01-15 WO PCT/JP2004/000235 patent/WO2005068338A1/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0878430A2 (en) * | 1997-05-16 | 1998-11-18 | Baumüller Nürnberg Gmbh | Lifting device, in particular elevator, with an electric motor and use of the electric motor |
JPH11130365A (en) * | 1997-10-29 | 1999-05-18 | Hitachi Ltd | Elevator device |
EP0970912A2 (en) * | 1998-07-07 | 2000-01-12 | Hitachi, Ltd. | Elevator apparatus |
DE19832208C1 (en) * | 1998-07-17 | 1999-11-04 | System Antriebstechnik Dresden | Transmission-less lift machine with synchronous external rotor motor has minimized external dimensions using construction of few and cost-effective components |
WO2002103883A1 (en) * | 2001-05-18 | 2002-12-27 | Thyssenkrupp Aufzugswerke Gmbh | Electrical machine with plastic supporting pieces |
Non-Patent Citations (1)
Title |
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See also references of WO2005068338A1 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102935969A (en) * | 2012-11-30 | 2013-02-20 | 桑中海 | Elevator traction machine and detachment tool thereof |
EP3385209A1 (en) * | 2017-04-07 | 2018-10-10 | Hitachi, Ltd. | Hoist machine and elevator |
JP2018177415A (en) * | 2017-04-07 | 2018-11-15 | 株式会社日立製作所 | Hoisting device and elevator |
Also Published As
Publication number | Publication date |
---|---|
JPWO2005068338A1 (en) | 2007-08-23 |
WO2005068338A1 (en) | 2005-07-28 |
CN100337899C (en) | 2007-09-19 |
CN1735553A (en) | 2006-02-15 |
EP1705148A4 (en) | 2011-08-31 |
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