Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B7/00—Other common features of elevators
  • B66B7/06—Arrangements of ropes or cables
• • 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
  • B66B11/0095—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave where multiple cars drive in the same hoist way
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures

Definitions

• the present invention relates to a one-shaft multi-force type elevator apparatus in which a plurality of cars are raised and lowered in a common hoistway.
• Japanese Unexamined Patent Publication No. 59-133188 discloses an elevator apparatus in which two cars are arranged vertically in a common hoistway.
• this elevator device since two cars and two counterweights are hung by 2: 1 per bing, the device configuration is complicated. Also, since the rope speed and the rotation speed of the sheave were twice as high as in one-by-one bing, the noise increased and the car could not run at high speed. Disclosure of the invention
• the present invention has been made to solve the above-mentioned problems, and it is necessary to suspend an upper car and a first counterweight, and a lower car and a second counterweight by 1: 1 low ping. It is an object of the present invention to obtain an elevator device which can reduce noise and drive the upper and lower cars at high speed.
• An elevator apparatus is disposed at an upper part of a hoistway, has a first drive device having a first drive sheave, an upper car which is moved up and down in the hoistway by a driving force of the first drive device, and A first counterweight, wrapped around the first drive sheep, having a first car side end connected to the upper car, and a first counterweight side end connected to the first counterweight; (1) a main cable, a second driving device having a second driving sheave disposed above the hoistway, having first and second lower car suspensions, and being disposed below the upper car, A lower car that is raised and lowered in the hoistway by the driving force, a second counterweight that is raised and lowered in the hoistway by the driving force of the second drive device, is wound around the second drive sheave, and the first lower car A second main rope having a second car-side end connected to the suspension portion and a second counterweight-side end connected to the second counterweight, and wound around the second drive sheave.
• a third main rope having a third car side end connected to the second lower car suspension and a third counterweight side end connected to the second counterweight;
• the second lower car suspension is arranged symmetrically with respect to the center of gravity of the lower car.
• FIG. 1 is a front view showing an elevator apparatus according to Embodiment 1 of the present invention
• FIG. 2 is a side view showing the elevator apparatus of FIG. 1,
• FIG. 3 is a plan view showing the elevator apparatus of FIG. 1,
• Fig. 4 is an enlarged front view showing the upper part of the hoistway of Fig. 1,
• Fig. 5 is an enlarged side view of the upper shaft of Fig. 1,
• FIG. 6 is a plan view showing an elevator apparatus according to Embodiment 2 of the present invention
• FIG. 7 is a plan view showing an elevator apparatus according to Embodiment 3 of the present invention.
• FIG. 1 is a front view showing an elevator apparatus according to Embodiment 1 of the present invention
• FIG. 2 is a side view showing the elevator apparatus of FIG. 1
• FIG. 3 shows the elevator apparatus of FIG.
• FIG. 4 is an enlarged front view showing the upper part of the hoistway of FIG. 1
• FIG. 5 is a side view showing the upper part of the hoistway of FIG. 1 in an enlarged manner.
• FIG. 4 is a view taken along arrow IV in FIG. 3
• FIG. 5 is a view taken along arrow V in FIG.
• a first drive device 3 having a first drive sheave 2 is disposed above a hoistway 1.
• the upper car 4 and the first counterweight 5 are moved up and down in the hoistway 1 by the driving force of the first driving device 3.
• a plurality of (only one is shown in the figure) first main ropes 6 for hanging the upper car 4 and the first counterweight 5 in the hoistway 1 are wound around the first drive sheave 2.
• the first main cable 6 includes a first car side end 6 a connected to the upper part of the upper car 4 and a first counterweight 5. And a first counterweight-side end 6b connected to the upper part of the counterweight.
• the upper car 4 is suspended by the first main rope 6 at its center of gravity.
• the first counterweight 5 is also suspended by the first main rope 6 at its center of gravity.
• the upper car 4 and the first counterweight 5 are suspended in a one-by-one bing system.
• the first driving device 3 is disposed directly above the upper car 4 so that the rotation axis of the first driving chip 2 extends horizontally.
• a first deflector 7 around which the first main rope 6 is wound is arranged above the hoistway 1, a first deflector 7 around which the first main rope 6 is wound is arranged. The first deflector 7 guides the first main rope 6 from the first drive sheave 2 to the first counterweight 5.
• first deflecting wheel 7 is arranged such that its rotation axis extends in parallel with the rotation axis of the first drive ship 2. Further, the first main rope 6 is fully wound around the first drive sheave 2 and the first deflector wheel 7.
• a second driving device 9 having a second driving sheave 8 is arranged above the hoistway 1.
• the lower car 10 and the second counterweight 11 are moved up and down in the hoistway 1 by the driving force of the second driving device 9.
• the lower car 10 is located below the upper car 4 in the hoistway 1.
• the first and second counterweights 5, 11 are arranged in the hoistway 1 behind the upper car 4 and the lower car 10 in the frontage direction of the upper car 4 and the lower car 10.
• First and second lower car suspensions 10 a and 10 b are provided on both sides of the upper end of the lower car 10.
• the first and second lower car suspension portions 10a, 10b are arranged symmetrically with respect to the center of gravity of the lower car 10.
• the second drive sheave 8 has a plurality of (only one is shown in the figure) second main ropes 12 and a plurality of (the only one shown in the figure) suspending the lower car 10 and the second counterweight 11 in the hoistway 1. (Only one is shown in the figure).
• the second main rope 12 has a second car side end 12 a connected to the first lower car suspension 10 a and a second counterweight side end connected to the second counterweight 11. 1 and 2b.
• the third main rope 13 has a third car side end 13 a connected to the second lower car suspension 1 O b, and a third counterweight side end connected to the second counterweight 11. Part 13b.
• the lower car 10 is suspended at its center of gravity by the second and third main ropes 12 and 13.
• the second counterweight 11 also has its center of gravity connected to the second and third main ropes 12 and 13. More suspended. Further, the lower car 10 and the second counterweight 11 are suspended in a 1: 1 roving manner.
• a second deflector wheel 14 around which the second and third main ropes 12 and 13 are wound is disposed.
• the second and third main ropes 12 and 13 are all around the second deflector wheel 14.
• first and second guide pulleys 15 and 16 are arranged above the hoistway 1.
• the first guide pulley 15 is disposed directly above the first lower car suspension 10a, and guides the second main rope 12 from the second drive ship 8 to the first lower car suspension 10a.
• the second guide bouly 16 is disposed directly above the second lower car suspension 1Ob, and guides the third main cable 13 to the second lower car suspension 1Ob.
• the second and third main ropes 12 and 13 pass through both sides of the upper car 4 and are connected to the lower car suspensions 10 a and 1 Ob so as not to interfere with the upper car 4.
• first and second directional change pulleys 17, 18 for guiding the third main rope 13 from the second drive sheave 8 to the second guide pulley 16.
• the rotating shafts of the second drive sheave 8, the second deflecting wheel 14, and the first guide pulley 15 extend parallel to each other and horizontally.
• the rotation axis of the second guide pulley 16 extends parallel to the frontage direction of the upper car 4 and the lower car 10 and horizontally.
• the axes of rotation of the first and second directional change pulleys 17, 18 extend vertically.
• a pair of car guide rails 19 for guiding the elevation of the upper car 4 and the lower car 10 and a pair of elevators for guiding the elevation of the first counterweight 5 are provided in the hoistway 1.
• a first counterweight guide rail 20 and a pair of second counterweight guide rails 21 for guiding the lifting and lowering of the second counterweight 11 are provided.
• the car guide rails 19 are arranged such that a straight line connecting them on the vertical projection plane extends parallel to the frontage direction of the upper car 4 and the lower car 10 and passes through the center of gravity of the upper car 4 and the lower car 10. I have. Also, on the vertical projection plane, the first lower car suspension 10a is disposed on the front side of the car 10 below the car guide rail 19, and the second lower car suspension 10b is connected to the car guide rail. It is located on the back side of car 10 below 19. In such an elevator system, the lower car 1 is provided by the second and third main ropes 12 and 13.
• the first and second lower car suspensions 10a and 10b are arranged symmetrically with respect to the center of gravity of the lower car 10, so that the upper car 4 and the lower car 10 are each weighted. It can be suspended at the center position, thereby preventing the eccentric load from acting on the upper car 4 and the lower car 10 and allowing the upper car 4 and the lower car 10 to run stably.
• the first guide pulley 15 was placed directly above the first lower car hanging portion 10a
• the second guide pulley 16 was placed directly above the second lower car hanging portion 1Ob. Therefore, the second and third main ropes 12 and 13 can be guided to the first and second lower car suspensions 10a and 10b with a simple configuration, and the upper car 4 and the lower car 10 can be guided. Can be run stably. Furthermore, since the direction change pulleys 17 and 18 are used to guide the third main rope 13 from the second drive sheave 8 to the second guide pulley 16, the third main rope 13 is formed by a simple configuration. 1 Interference with the driving device 3 can be prevented.
• the first and second counterweights 5, 11 are arranged in the hoistway 1 behind the upper car 4 and the lower car 10 in the direction of the frontage of the upper car 4 and the lower car 10. Therefore, the space in the hoistway 1 can be effectively used, and the frontage dimension of the hoistway 1 can be reduced.
• Embodiment 2
• FIG. 6 is a plan view showing an elevator apparatus according to Embodiment 2 of the present invention.
• the first and second counterweights 5, 11 are arranged behind the upper car 4 and the lower car 10, but as shown in FIG. , 11 may be placed in the hoistway 1 beside the upper car 4 and the lower car 10.
• the space in the hoistway 1 can be used effectively, The depth dimension of the hoistway 1 can be reduced.
• FIG. 7 is a plan view showing an elevator apparatus according to Embodiment 3 of the present invention.
• the car guide rails 19 are arranged in the middle part of the upper car 4 and the lower car 10 in the depth direction, but if the upper car 4 and the lower car 10 are suspended at the center of gravity, the car guide rails Since the eccentric load does not act on 19, the installation position of the car guide rail is not limited to FIG.
• the lower car suspensions 10a and 10b are arranged in the middle of the lower car 10 in the depth direction, and are symmetrical with respect to the center of gravity of the upper car 4 and the lower car 10.
• the car guide rail 19 may be arranged near the corner at the position.
• the layout can be simplified by omitting the guide pulley 15 and the direction change pulley 18 in FIG.
• the driving devices 3 and 9, the deflecting wheels 7 and 14, the guide pulleys 15 and 16, and the direction change pulleys 17 and 18 can be placed in the machine room located above the hoistway 1. It may be arranged at the upper part in the hoistway 1. That is, the present invention can be applied to an elevator apparatus having a machine room and an elevator apparatus without a machine room.
• the driving devices 3 and 9 are arranged so that the rotation axes of the driving sheaves 2 and 8 extend horizontally. However, the driving devices are arranged so that the rotation shaft of the driving sheave extends vertically. Is also good.
• one or two direction change pulleys are used, but three or more direction pulleys may be used to avoid interference between the third main rope and other equipment on the hoistway.
• the main rope is wound around the drive sheave and the deflecting wheel in a full-hook manner, but a half-hook type may be used as long as a sufficient traction force is obtained. If sufficient traction power is obtained, the deflecting car may be omitted.

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• Engineering & Computer Science (AREA)
• Structural Engineering (AREA)
• Automation & Control Theory (AREA)
• Civil Engineering (AREA)
• Mechanical Engineering (AREA)
• Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Priority Applications (5)

Applications Claiming Priority (1)

Publications (1)

Family

ID=32321483

Family Applications (1)

Country Status (5)

Cited By (3)

Families Citing this family (7)

Citations (5)

Family Cites Families (3)

• 2002
  • 2002-11-18 EP EP02808157A patent/EP1564177B1/de not_active Expired - Lifetime
  • 2002-11-18 CN CNB028270630A patent/CN100344521C/zh not_active Expired - Lifetime
  • 2002-11-18 KR KR10-2004-7011141A patent/KR20050002816A/ko not_active Application Discontinuation
  • 2002-11-18 WO PCT/JP2002/011998 patent/WO2004046009A1/ja active Application Filing
  • 2002-11-18 JP JP2004553101A patent/JP4292157B2/ja not_active Expired - Fee Related

Patent Citations (5)

Non-Patent Citations (1)

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