EP1754681A1 - Elevator apparatus - Google Patents
Elevator apparatus Download PDFInfo
- Publication number
- EP1754681A1 EP1754681A1 EP04745690A EP04745690A EP1754681A1 EP 1754681 A1 EP1754681 A1 EP 1754681A1 EP 04745690 A EP04745690 A EP 04745690A EP 04745690 A EP04745690 A EP 04745690A EP 1754681 A1 EP1754681 A1 EP 1754681A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- car
- sheave
- counterweight
- suspending
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/0065—Roping
- B66B11/008—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/0035—Arrangement of driving gear, e.g. location or support
- B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
Definitions
- the present invention relates to a traction elevator apparatus of a 3:1 roping system in which an elevator car and a counterweight are suspended by a main rope.
- the vertically projected area of a machine room installed above an elevator shaft is made almost the same as the vertically projected area of the shaft, or equipment that has conventionally been installed in the machine room is arranged in the shaft to make the installation of machine room unnecessary, by which space saving is achieved.
- the space saving of elevator apparatus imposes a significant limitation on the layout and installation position of equipment used, so that driving torque cannot be increased by installing a large-size traction machine, which results in a difficulty in increasing the capacity of elevator apparatus.
- a method for increasing the capacity of elevator apparatus a method in which the capacity is increased by a roping system of main rope suspending the elevator car and the counterweight is conceivable in addition to a method in which the driving torque of traction machine is increased.
- a traction elevator apparatus in which the car and counterweight are suspended by a 4:1 roping system has been disclosed.
- the driving torque necessary for the traction machine can be decreased, for example, to one-fourth for a 1:1 roping system or to a half for a 2:1 roping system.
- a high-capacity elevator apparatus can be realized without installing a large-size traction machine.
- the travel distance of main rope increases significantly as compared with the travel distance of car, and hence the number of suspending sheaves and reversing sheaves for turning around the main rope increases, which poses a problem of highly complicated configuration and arrangement of suspending sheaves and reversing sheaves.
- An object of the present invention is to provide a traction elevator apparatus in which a high capacity of an elevator apparatus in which space saving is achieved can be kept by decreasing the size of a traction machine and by simplifying the configuration.
- Patent Document 1 Japanese Patent Laid-Open No. 2000-153975
- a reversing sheave for car which has a turning shaft parallel with a car suspending sheave above a car and also has rope grooves lying on a straight line with respect to the rope grooves of the car suspending sheave on the vertically projected plane, is arranged above the car;
- a reversing sheave for counterweight which has a turning shaft parallel with a counterweight suspending sheave above a counterweight and also has rope grooves lying on a straight line with respect to the rope grooves of the counterweight suspending sheave on the vertically projected plane, is arranged above the counterweight; and a traction machine and a deflector sheave are arranged at the top of an elevator shaft so as to be aligned with the positions of the car suspending sheave and the counterweight suspending sheave, by which the car and the counterweight are suspended in a 3:1 roping system.
- Figure 1 is a general system view showing a first embodiment of an elevator apparatus in accordance with the present invention
- Figure 2 is a plan view of Figure 1.
- a car 2 moving vertically in an elevator shaft 1 having a substantially square-shaped transverse cross section is arranged on the shaft wall 1a side on which a doorway 3 that connects an elevator hall on each floor of a building to the shaft 1 is provided.
- the horizontal movement of the car 2 is restricted by a pair of car guide rails 4 erected so as to face to each other over the elevatable range of the car 2.
- shaft walls 1b and 1c facing to each other on both sides with the shaft wall 1a being held therebetween and both side surfaces of the car 2
- slight clearances 5a and 5b are formed, respectively.
- the car 2 is supported by a quadrangular prism shaped car frame (not shown) provided so as to surround the central portions of side surfaces and top and bottom surfaces of the car 2, and guide rollers (not shown) etc. provided on vertical frames of this car frame engage with the car guide rails 4 arranged so as to pass through the clearances 5a and 5b on both sides of the car 2, by which the car 2 is guided in the vertical direction.
- a car suspending sheave 2a is provided turnably.
- the car suspending sheave 2a has a turning shaft that is parallel with the shaft wall 1a, and is arranged in a central part above the car 2.
- a counterweight 6 moving vertically in the elevator shaft 1 in the direction opposite to the car 2 is arranged so as to move vertically in a clearance 5c formed between a shaft wall 1d on the far side facing to the shaft wall 1a with the car 2 being held therebetween and the car 2. That is to say, since a sufficient distance is not provided between the car 2 and the shaft wall 1d, the counterweight 6 has a construction that is longer in the width direction than in the front-to-back direction of the car 2.
- the counterweight 6 is arranged so that the horizontal movement thereof is restricted by a pair of counterweight guide rails 7 erected so as to face to each other over the elevatable range of the counterweight 6.
- the counterweight 6 is supported by a substantially quadrangular prism shaped counterweight frame (not shown), and guide shoes (not shown) etc. provided on vertical frames of this counterweight frame engage with the counterweight guide rails 7 arranged on both sides of the counterweight 6, by which the counterweight 6 is guided in the vertical direction.
- a counterweight suspending sheave 6a is provided turnably in an end portion on the shaft wall 1c side.
- the counterweight suspending sheave 6a has a turning shaft that is perpendicular to the turning shaft of the car suspending sheave 2a, which is substantially parallel with the lengthwise direction of the counterweight 6, and the counterweight suspending sheave 6a is arranged so that an end portion on the shaft wall 1c side thereof lies in a substantially middle portion in the width direction of the car 2.
- a reversing sheave 9a for car is turnably provided just above the car 2
- a reversing sheave 9b for counterweight is turnably provided just above the counterweight 6.
- the reversing sheave 9a for car has a turning shaft that is substantially parallel with the turning shaft of the car suspending sheave 2a, and is arranged on the shaft wall 1a side from the car suspending sheave 2a so that rope grooves formed in the outer peripheral surface thereof lies substantially on a straight line with respect the rope grooves formed in the outer peripheral surface of the car suspending sheave 2a on the vertically projected plane.
- an end portion on the shaft wall 1d side of the reversing sheave 9a for car is arranged so as to be located substantially just above a central part of the car suspending sheave 2a.
- the reversing sheave 9b for counterweight has a turning shaft that is substantially parallel with the turning shaft of the counterweight suspending sheave 6a and is perpendicular to the turning shafts of the car suspending sheave 2a and the reversing sheave 9a for car, and is arranged on the shaft wall 1b side from the counterweight suspending sheave 6a so that rope grooves formed in the outer peripheral surface thereof lies substantially on a straight line with respect the rope grooves formed in the outer peripheral surface of the counterweight suspending sheave 6a on the vertically projected plane.
- a gearless traction machine 10 and a deflector sheave 11 including a drive sheave 10a formed with rope grooves in the outer peripheral surface and a motor section 10b that rotatively control the drive sheave 10a in an arbitrary direction and at an arbitrary speed.
- the drive sheave 10a of the gearless traction machine 10 has almost the same diameter as the diameters of the suspending sheaves and the reversing sheaves provided in the elevator shaft 1, and also has a turning shaft that is substantially parallel with the turning shafts of the car suspending sheave 2a and the reversing sheave 9a for car.
- the drive sheave 10a is arranged on the shaft wall 1d side of the car suspending sheave 2a so that the rope grooves therein lies substantially on a straight line with respect to the rope grooves in the car suspending sheave 2a and the rope grooves in the reversing sheave 9a for car, and an end portion on the shaft wall 1a side thereof has a predetermined distance from an end portion on the shaft wall 1d side of the car suspending sheave 2a on the vertically projected plane.
- the deflector sheave 11 has a turning shaft that is substantially parallel with the turning shafts of the drive sheave 10a, the car suspending sheave 2a, and the reversing sheave 9a for car, and is arranged so that rope grooves formed in the outer peripheral surface thereof lies substantially on a straight line with respect to the rope grooves of the car suspending sheave 2a, the reversing sheave 9a for car, and the drive sheave 10a on the vertically projected plane. Also, an end portion on the shaft wall 1d side thereof is located substantially just above an end portion on the shaft wall 1c side of the counterweight suspending sheave 6a.
- a main rope 12 for suspending the car 2 and the counterweight 6, which are configured as described above, in a well bucket manner is elastically fixed to the top frame of the car frame, which supports the turning shaft of the car suspending sheave 2a, via a car-side fixing member 12a.
- the main rope 12 is set from the car-side fixing member 12a side to the reversing sheave 9a for car, the car suspending sheave 2a, the drive sheave 10a, the deflector sheave 11, the counterweight suspending sheave 6a, and the reversing sheave 9b for counterweight in that order.
- the other end of the main rope 12 is elastically fixed to the top frame of the counterweight frame, which supports the counterweight 6, via a counterweight-side fixing member 12b.
- the main rope 12 is arranged so that a portion leading from the car-side fixing member 12a to the end portion on the shaft wall 1d side of the reversing sheave 9a for car, a portion leading from the end portion on the shaft wall 1d side of the deflector sheave 11 to the end portion on the shaft wall 1c side of the counterweight suspending sheave 6a, and a portion leading from the end portion on the shaft wall 1b side of the reversing sheave 9b for counterweight to the counterweight-side fixing member 12b are in a substantially vertical direction.
- a portion of the main rope 12 leading from the end portion on the shaft wall 1a side of the reversing sheave 9a for car to the end portion on the shaft wall 1a side of the car suspending sheave 2a and a portion of the main rope12 leading from the end portion on the shaft wall 1d side of the car suspending sheave 2a to the end portion on the shaft wall 1a side of the drive sheave 10a are arranged so as to have a predetermined angle with respect to a vertical plane having the turning shaft of the car suspending sheave 2a so as to be symmetrical with respect to this plane.
- the car 2 and the counterweight 6 are suspended by the main rope 12 in a 3:1 roping system, and move vertically in the elevator shaft 1 at a speed of 1/3 of the rotational speed of the drive sheave 10a.
- the main rope 12 has properties of prolonged bending life and high traction ability so as to be set around the suspending sheaves and reversing sheaves and the drive sheave 10a each having a small diameter.
- the main rope 12 for example, a rope in which a core wire made of a steel is coated with a resin to provide a high friction coefficient is used.
- the size of the gearless traction machine 10 can be decreased.
- the gearless traction machine 10 and the deflector sheave 11 can be installed in the machine room 8 having almost the same vertically projected area as that of the elevator shaft 1.
- the gearless traction machine 10 and the deflector sheave 11 can be installed so as to be aligned with the positions of the car suspending sheave 2a provided on the top frame of car frame and the counterweight suspending sheave 6a provided on the top frame of counterweight frame. Therefore, the length of the main rope 12 and the number of suspending sheaves etc. are made at a minimum, by which the 3:1 roping system can be configured, and also a fixed element for supporting the car suspending sheave 2a need not be installed newly on the car 2, so that the configuration can be made simple.
- the machine room 8 having almost the same vertically projected area as that of the elevator shaft 1 is installed at the top of the elevator shaft 1.
- the size of the traction machine can be decreased, and the entire configuration can be simplified. Therefore, even in a space-saved elevator apparatus, a high capacity can be achieved easily.
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
Description
- The present invention relates to a traction elevator apparatus of a 3:1 roping system in which an elevator car and a counterweight are suspended by a main rope.
- For the recent elevator apparatus, in order to effectively utilize a building as far as possible, the vertically projected area of a machine room installed above an elevator shaft is made almost the same as the vertically projected area of the shaft, or equipment that has conventionally been installed in the machine room is arranged in the shaft to make the installation of machine room unnecessary, by which space saving is achieved. However, the space saving of elevator apparatus imposes a significant limitation on the layout and installation position of equipment used, so that driving torque cannot be increased by installing a large-size traction machine, which results in a difficulty in increasing the capacity of elevator apparatus.
- On the other hand, as a method for increasing the capacity of elevator apparatus, a method in which the capacity is increased by a roping system of main rope suspending the elevator car and the counterweight is conceivable in addition to a method in which the driving torque of traction machine is increased. For example, in "Elevator with Tow Sheave" described in
Japanese Patent Laid-Open No. 2000-153975 - An object of the present invention is to provide a traction elevator apparatus in which a high capacity of an elevator apparatus in which space saving is achieved can be kept by decreasing the size of a traction machine and by simplifying the configuration.
- Patent Document 1:
Japanese Patent Laid-Open No. 2000-153975 - To achieve the above object, in the elevator apparatus in accordance with the present invention, a reversing sheave for car, which has a turning shaft parallel with a car suspending sheave above a car and also has rope grooves lying on a straight line with respect to the rope grooves of the car suspending sheave on the vertically projected plane, is arranged above the car; a reversing sheave for counterweight, which has a turning shaft parallel with a counterweight suspending sheave above a counterweight and also has rope grooves lying on a straight line with respect to the rope grooves of the counterweight suspending sheave on the vertically projected plane, is arranged above the counterweight; and a traction machine and a deflector sheave are arranged at the top of an elevator shaft so as to be aligned with the positions of the car suspending sheave and the counterweight suspending sheave, by which the car and the counterweight are suspended in a 3:1 roping system.
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- Figure 1 is a general system view showing a first embodiment of an elevator apparatus in accordance with the present invention.
- Figure 2 is a plan view showing a first embodiment of an elevator apparatus in accordance with the present invention.
- To explain the present invention in more detail, it will be explained with reference to the accompanying drawings. In each drawings, the same reference characters are applied to the same or corresponding elements, and the duplicated explanation thereof is appropriately simplified or omitted.
- Figure 1 is a general system view showing a first embodiment of an elevator apparatus in accordance with the present invention, and Figure 2 is a plan view of Figure 1. In drawings, a
car 2 moving vertically in anelevator shaft 1 having a substantially square-shaped transverse cross section is arranged on the shaft wall 1a side on which adoorway 3 that connects an elevator hall on each floor of a building to theshaft 1 is provided. The horizontal movement of thecar 2 is restricted by a pair ofcar guide rails 4 erected so as to face to each other over the elevatable range of thecar 2. Betweenshaft walls 1b and 1c facing to each other on both sides with the shaft wall 1a being held therebetween and both side surfaces of thecar 2,slight clearances 5a and 5b are formed, respectively. Also, thecar 2 is supported by a quadrangular prism shaped car frame (not shown) provided so as to surround the central portions of side surfaces and top and bottom surfaces of thecar 2, and guide rollers (not shown) etc. provided on vertical frames of this car frame engage with thecar guide rails 4 arranged so as to pass through theclearances 5a and 5b on both sides of thecar 2, by which thecar 2 is guided in the vertical direction. And on a top frame (not shown) of the car frame, which is located above thecar 2 from theshaft wall 1b side to the shaft wall 1c side, acar suspending sheave 2a is provided turnably. Thecar suspending sheave 2a has a turning shaft that is parallel with the shaft wall 1a, and is arranged in a central part above thecar 2. - A
counterweight 6 moving vertically in theelevator shaft 1 in the direction opposite to thecar 2 is arranged so as to move vertically in aclearance 5c formed between a shaft wall 1d on the far side facing to the shaft wall 1a with thecar 2 being held therebetween and thecar 2. That is to say, since a sufficient distance is not provided between thecar 2 and the shaft wall 1d, thecounterweight 6 has a construction that is longer in the width direction than in the front-to-back direction of thecar 2. Thecounterweight 6 is arranged so that the horizontal movement thereof is restricted by a pair ofcounterweight guide rails 7 erected so as to face to each other over the elevatable range of thecounterweight 6. Also, thecounterweight 6 is supported by a substantially quadrangular prism shaped counterweight frame (not shown), and guide shoes (not shown) etc. provided on vertical frames of this counterweight frame engage with thecounterweight guide rails 7 arranged on both sides of thecounterweight 6, by which thecounterweight 6 is guided in the vertical direction. On a top frame (not shown) of the counterweight frame, which is located above thecounterweight 6, acounterweight suspending sheave 6a is provided turnably in an end portion on the shaft wall 1c side. Thecounterweight suspending sheave 6a has a turning shaft that is perpendicular to the turning shaft of thecar suspending sheave 2a, which is substantially parallel with the lengthwise direction of thecounterweight 6, and thecounterweight suspending sheave 6a is arranged so that an end portion on the shaft wall 1c side thereof lies in a substantially middle portion in the width direction of thecar 2. - Also, in a
machine room 8 which is provided at the top of theelevator shaft 1 and has almost the same vertically projected area as the vertically projected area of theelevator shaft 1, a reversingsheave 9a for car is turnably provided just above thecar 2, and a reversingsheave 9b for counterweight is turnably provided just above thecounterweight 6. The reversingsheave 9a for car has a turning shaft that is substantially parallel with the turning shaft of thecar suspending sheave 2a, and is arranged on the shaft wall 1a side from thecar suspending sheave 2a so that rope grooves formed in the outer peripheral surface thereof lies substantially on a straight line with respect the rope grooves formed in the outer peripheral surface of thecar suspending sheave 2a on the vertically projected plane. Also, an end portion on the shaft wall 1d side of the reversingsheave 9a for car is arranged so as to be located substantially just above a central part of thecar suspending sheave 2a. On the other hand, the reversingsheave 9b for counterweight has a turning shaft that is substantially parallel with the turning shaft of thecounterweight suspending sheave 6a and is perpendicular to the turning shafts of thecar suspending sheave 2a and the reversingsheave 9a for car, and is arranged on theshaft wall 1b side from thecounterweight suspending sheave 6a so that rope grooves formed in the outer peripheral surface thereof lies substantially on a straight line with respect the rope grooves formed in the outer peripheral surface of thecounterweight suspending sheave 6a on the vertically projected plane. Also, in themachine room 8, there are provided agearless traction machine 10 and adeflector sheave 11, thetraction machine 10 including adrive sheave 10a formed with rope grooves in the outer peripheral surface and amotor section 10b that rotatively control the drive sheave 10a in an arbitrary direction and at an arbitrary speed. Thedrive sheave 10a of thegearless traction machine 10 has almost the same diameter as the diameters of the suspending sheaves and the reversing sheaves provided in theelevator shaft 1, and also has a turning shaft that is substantially parallel with the turning shafts of thecar suspending sheave 2a and the reversingsheave 9a for car. Also, thedrive sheave 10a is arranged on the shaft wall 1d side of thecar suspending sheave 2a so that the rope grooves therein lies substantially on a straight line with respect to the rope grooves in thecar suspending sheave 2a and the rope grooves in the reversingsheave 9a for car, and an end portion on the shaft wall 1a side thereof has a predetermined distance from an end portion on the shaft wall 1d side of the car suspending sheave 2a on the vertically projected plane. On the other hand, thedeflector sheave 11 has a turning shaft that is substantially parallel with the turning shafts of thedrive sheave 10a, thecar suspending sheave 2a, and the reversingsheave 9a for car, and is arranged so that rope grooves formed in the outer peripheral surface thereof lies substantially on a straight line with respect to the rope grooves of thecar suspending sheave 2a, the reversingsheave 9a for car, and the drive sheave 10a on the vertically projected plane. Also, an end portion on the shaft wall 1d side thereof is located substantially just above an end portion on the shaft wall 1c side of thecounterweight suspending sheave 6a. - One end portion of a
main rope 12 for suspending thecar 2 and thecounterweight 6, which are configured as described above, in a well bucket manner is elastically fixed to the top frame of the car frame, which supports the turning shaft of thecar suspending sheave 2a, via a car-side fixing member 12a. Themain rope 12 is set from the car-side fixing member 12a side to the reversingsheave 9a for car, thecar suspending sheave 2a, thedrive sheave 10a, thedeflector sheave 11, thecounterweight suspending sheave 6a, and the reversingsheave 9b for counterweight in that order. The other end of themain rope 12 is elastically fixed to the top frame of the counterweight frame, which supports thecounterweight 6, via a counterweight-side fixing member 12b. Themain rope 12 is arranged so that a portion leading from the car-side fixing member 12a to the end portion on the shaft wall 1d side of the reversingsheave 9a for car, a portion leading from the end portion on the shaft wall 1d side of thedeflector sheave 11 to the end portion on the shaft wall 1c side of thecounterweight suspending sheave 6a, and a portion leading from the end portion on theshaft wall 1b side of the reversingsheave 9b for counterweight to the counterweight-side fixing member 12b are in a substantially vertical direction. Also, a portion of themain rope 12 leading from the end portion on the shaft wall 1a side of the reversingsheave 9a for car to the end portion on the shaft wall 1a side of thecar suspending sheave 2a and a portion of the main rope12 leading from the end portion on the shaft wall 1d side of thecar suspending sheave 2a to the end portion on the shaft wall 1a side of thedrive sheave 10a are arranged so as to have a predetermined angle with respect to a vertical plane having the turning shaft of thecar suspending sheave 2a so as to be symmetrical with respect to this plane. - Thus, the
car 2 and thecounterweight 6 are suspended by themain rope 12 in a 3:1 roping system, and move vertically in theelevator shaft 1 at a speed of 1/3 of the rotational speed of thedrive sheave 10a. Themain rope 12 has properties of prolonged bending life and high traction ability so as to be set around the suspending sheaves and reversing sheaves and thedrive sheave 10a each having a small diameter. As themain rope 12, for example, a rope in which a core wire made of a steel is coated with a resin to provide a high friction coefficient is used. - According to the first embodiment of the elevator apparatus in accordance with the present invention, since the
car 2 and thecounterweight 6 are suspended in the 3:1 roping system, even if the diameter of thedrive sheave 10a is made 1/3 of the case of 1:1 roping system or 1/1.5 of the case of 2:1 roping system, almost the same level of driving torque can be obtained. Therefore, the size of thegearless traction machine 10 can be decreased. By decreasing the size of thegearless traction machine 10 in this manner, thegearless traction machine 10 and thedeflector sheave 11 can be installed in themachine room 8 having almost the same vertically projected area as that of theelevator shaft 1. Specifically, thegearless traction machine 10 and thedeflector sheave 11 can be installed so as to be aligned with the positions of thecar suspending sheave 2a provided on the top frame of car frame and thecounterweight suspending sheave 6a provided on the top frame of counterweight frame. Therefore, the length of themain rope 12 and the number of suspending sheaves etc. are made at a minimum, by which the 3:1 roping system can be configured, and also a fixed element for supporting thecar suspending sheave 2a need not be installed newly on thecar 2, so that the configuration can be made simple. In the first embodiment, there has been described the case where themachine room 8 having almost the same vertically projected area as that of theelevator shaft 1 is installed at the top of theelevator shaft 1. However, it is a matter of course that by installing thegearless traction machine 10, thedeflector sheave 11, and the like in theelevator shaft 1 like a machine room less elevator apparatus, the same effects as those of the first embodiment can be achieved. Also, even if the turning shaft of thedrive sheave 10a is arranged so as to have a predetermined angle with respect to the turning shafts of thecar suspending sheave 2a and the reversingsheave 9a for car so that the positions of thedrive sheave 10a of thegearless traction machine 10 and thedeflector sheave 11 are aligned with the positions of thecar suspending sheave 2a and thecounterweight suspending sheave 6a, the same effects as those of the first embodiment can be achieved. - As described above, according to the elevator apparatus of a 3:1 roping system in accordance with the present invention, the size of the traction machine can be decreased, and the entire configuration can be simplified. Therefore, even in a space-saved elevator apparatus, a high capacity can be achieved easily.
Claims (7)
- An elevator apparatus of a 3:1 roping system comprising:a car which moves vertically in an elevator shaft;a car suspending sheave provided turnably above the car;a reversing sheave for car, which is provided turnably above the car at the top of the elevator shaft, has a turning shaft parallel with the turning shaft of the car suspending sheave, and is arranged so that the rope grooves thereof lies on a straight line with respect to the rope grooves of the car suspending sheave on the vertically projected plane;a counterweight moving vertically in the elevator shaft in a direction opposite to the car;a counterweight suspending sheave provided turnably above the counterweight;a reversing sheave for counterweight, which is provided turnably above the counterweight at the top of the elevator shaft, has a turning shaft parallel with the turning shaft of the counterweight suspending sheave, and is arranged so that the rope grooves thereof lies on a straight line with respect to the rope grooves of the counterweight suspending sheave on the vertically projected plane;a traction machine which is provided at the top of the elevator shaft and has a turnable drive sheave; anda deflector sheave which is provided at the top of the elevator shaft, has a turning shaft parallel with the turning shaft of the drive sheave, and is arranged so that the rope grooves thereof lies on a straight line with respect to the rope grooves of the drive sheave on the vertically projected plane.
- The elevator apparatus of a 3:1 roping system according to claim 1, characterized in that the counterweight moves vertically in a clearance formed between a far-side shaft wall and the car.
- The elevator apparatus of a 3:1 roping system according to claim 1 or 2, characterized in that the counterweight suspending sheave and the reversing sheave for counterweight are arranged so that the turning shafts thereof are perpendicular to the turning shafts of the car suspending sheave and the reversing sheave for car.
- The elevator apparatus of a 3:1 roping system according to claim 3, characterized in that the drive sheave and the deflector sheave are arranged so that the turning shafts thereof are parallel with the turning shafts of the car suspending sheave and the reversing sheave for car, and the rope grooves thereof lie on a straight line with respect to the rope grooves of the car suspending sheave and the reversing sheave for car on the vertically projected plane.
- The elevator apparatus of a 3:1 roping system according to any one of claims 1 to 4, characterized in that the car suspending sheave is provided on a top frame of a car frame, which supports the car.
- The elevator apparatus of a 3:1 roping system according to any one of claims 1 to 5, characterized in that as a main rope for suspending the car and the counterweight, a rope in which the surface thereof is formed of a resin to provide a high friction coefficient is used.
- The elevator apparatus of a 3:1 roping system according to any one of claims 1 to 6, characterized in that the traction machine is provided in the elevator shaft.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2004/007980 WO2005121009A1 (en) | 2004-06-08 | 2004-06-08 | Elevator apparatus |
Publications (2)
Publication Number | Publication Date |
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EP1754681A1 true EP1754681A1 (en) | 2007-02-21 |
EP1754681A4 EP1754681A4 (en) | 2010-01-20 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP04745690A Withdrawn EP1754681A4 (en) | 2004-06-08 | 2004-06-08 | Elevator apparatus |
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EP (1) | EP1754681A4 (en) |
JP (1) | JPWO2005121009A1 (en) |
CN (1) | CN1802309A (en) |
WO (1) | WO2005121009A1 (en) |
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WO2018099979A1 (en) * | 2016-12-02 | 2018-06-07 | Siemag Tecberg Gmbh | Conveying system for repositories |
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JP4940823B2 (en) * | 2006-08-18 | 2012-05-30 | フジテック株式会社 | Elevator equipment |
CN102815588B (en) * | 2011-06-10 | 2015-05-13 | 铃木电梯(中国)有限公司 | Pulley block in multifunctional elevator and multifunctional elevator obtained therefrom |
CN107949534B (en) * | 2015-09-16 | 2019-07-02 | 三菱电机株式会社 | The deflector sheave replacing options and deflector sheave of elevator replace accessory |
CN107089579A (en) * | 2017-06-23 | 2017-08-25 | 天奥电梯(中国)有限公司 | A kind of simple goods elevator |
JP7161819B2 (en) * | 2019-12-18 | 2022-10-27 | 三菱電機株式会社 | elevator equipment |
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DE20320076U1 (en) * | 2003-12-23 | 2004-03-04 | Wittur Ag | Driving gear for lift, comprises narrow drive motor with small drive disc mounted on common frame secured to lift shaft cover |
JP2004083231A (en) * | 2002-08-28 | 2004-03-18 | Mitsubishi Electric Corp | Elevator device |
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Publication number | Priority date | Publication date | Assignee | Title |
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JPS5724313B2 (en) * | 1974-04-26 | 1982-05-24 | ||
JPH08231157A (en) * | 1995-02-24 | 1996-09-10 | Toshiba Corp | Hydraulic elevator |
JP2001302138A (en) * | 2000-04-14 | 2001-10-31 | Mitsubishi Electric Corp | Main rope device for elevator |
FI4928U1 (en) * | 2001-01-25 | 2001-05-23 | Kone Corp | Elevator |
JP2004155526A (en) * | 2002-11-05 | 2004-06-03 | Mitsubishi Electric Corp | Elevator device |
-
2004
- 2004-06-08 WO PCT/JP2004/007980 patent/WO2005121009A1/en not_active Application Discontinuation
- 2004-06-08 JP JP2006519191A patent/JPWO2005121009A1/en active Pending
- 2004-06-08 EP EP04745690A patent/EP1754681A4/en not_active Withdrawn
- 2004-06-08 CN CN200480015842.9A patent/CN1802309A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004083231A (en) * | 2002-08-28 | 2004-03-18 | Mitsubishi Electric Corp | Elevator device |
DE20320076U1 (en) * | 2003-12-23 | 2004-03-04 | Wittur Ag | Driving gear for lift, comprises narrow drive motor with small drive disc mounted on common frame secured to lift shaft cover |
Non-Patent Citations (1)
Title |
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See also references of WO2005121009A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018099979A1 (en) * | 2016-12-02 | 2018-06-07 | Siemag Tecberg Gmbh | Conveying system for repositories |
EA039051B1 (en) * | 2016-12-02 | 2021-11-26 | Сиемаг Текберг Гмбх | Conveying system for repositories |
Also Published As
Publication number | Publication date |
---|---|
CN1802309A (en) | 2006-07-12 |
EP1754681A4 (en) | 2010-01-20 |
WO2005121009A1 (en) | 2005-12-22 |
JPWO2005121009A1 (en) | 2008-04-10 |
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