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
  • B66B11/08—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
• • 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
  • B66B11/007—Roping for counterweightless elevators
• • 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
• • 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
  • B66B7/08—Arrangements of ropes or cables for connection to the cars or cages, e.g. couplings

Definitions

• the present invention relates to a traction type elevator apparatus in which a lifting body is suspended by a main rope.
• Patent Document 1 Japanese Patent Application Laid-Open No. 2004-67365
• the present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator apparatus that can reduce the overall dimensions in the height direction of the hoistway.
• An elevator apparatus includes an elevating body capable of moving up and down in a hoistway and a drive device including a drive sheave, a main rope that is wound around the drive sheave and suspends the elevating body in the hoistway,
• the main rope is wound around and has a tension wheel that applies tension to the main rope, and includes a lifting mechanism that lifts and lowers the lifting body by the driving force of the driving device.
• Protruding portions that protrude from the surface portion are provided, and one end and the other end of the main rope are connected to the protruding portions, respectively.
• 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 front view showing an elevator apparatus according to Embodiment 2 of the present invention.
• FIG. 4 is a side view showing the elevator apparatus of FIG. 3.
• FIG. 5 is a side view showing an elevator apparatus according to Embodiment 3 of the present invention.
• FIG. 6 is a side view showing an elevator apparatus according to Embodiment 4 of the present invention.
• FIG. 7 is a side view showing an elevator apparatus according to Embodiment 5 of the present invention.
• FIG. 8 is a front view showing an elevator apparatus according to Embodiment 6 of the present invention.
• FIG. 9 is a side view showing the elevator apparatus of FIG. 8.
• 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.
• a force cage 2 that is an elevating body is disposed so as to be able to move up and down.
• a pair of car guide rails (not shown) for setting up the car 2 is installed in the hoistway 1. The force 2 is raised and lowered in the hoistway 1 while being guided by each car guide rail.
• the ladder 2 includes a floor portion 2a, a ceiling portion 2b disposed above the floor portion 2a, a front surface portion 2c provided with a car doorway 3, and a back surface portion 2d facing the front surface portion 2c.
• the car doorway 3 has a pair of side surface portions 2e facing each other in the opening direction. Further, the car 2 is arranged in the hoistway 1 so that the front direction of the car entrance 3 is parallel to the width direction of the hoistway 1. Each side part 2e is arranged between the car guide rails. When the hoistway 1 is vertically projected, the straight line connecting the car guide rails is parallel to the width direction of the hoistway 1.
• a projecting portion 4 projecting outward of the force 2 is provided at an intermediate portion of one side surface portion 2e. ing.
• the protrusion 4 extends from the force 2 in the horizontal direction. Further, the protrusion 4 is disposed outside the area of the car 2 in the vertical projection plane of the hoistway 1.
• a driving device (lifting machine) 5 that generates a driving force for raising and lowering the car 2 is provided in the upper part of the hoistway 1.
• the drive device 5 includes a drive device body 6 including a motor and a drive sheave 7 rotated by the drive device body 6.
• the driving device 5 is a thin hoisting machine whose axial dimension is smaller than the radial dimension of the driving device body 6 or the driving sheave 7. Further, the drive device 5 is arranged so that its axial direction is the width direction of the hoistway 1.
• a plurality of main ropes 8 are wound around the drive sheave 7.
• the car 2 is suspended in the hoistway 1 by each main rope 8.
• the outer periphery of each main rope 8 is coated with a high friction material. Thereby, the frictional force between the drive sheave 7 and each main rope 8 is ensured.
• the tension wheel 9 can be displaced with respect to the car guide rail.
• the tension wheel 9 is attached to a rotating member that can rotate in the vertical direction with respect to the car guide rail. Further, the tension wheel 9 is suspended by the main ropes 8. As a result, the tension wheel 9 applies tension to each main rope 8. Furthermore, the tension wheel 9 is provided with a weight (not shown) for ensuring a predetermined magnitude of tension applied to each main rope 8.
• the protrusion 4 includes an upper rope stopper 10 for connecting each main rope 8 to the protrusion 4 above the protrusion 4, and each main rope 8 to the protrusion 4 below the protrusion 4.
• a lower rope stop 11 for connection is provided.
• Each main rope 8 has a first connection portion (one end portion) 8a connected to the upper leash stop portion 10 and a second connection portion (other end portion) 8b connected to the lower leash stop portion 11. is doing.
• Each main rope 8 is wound from the first connecting portion 8a in the order of the driving sheave 7 and the tensioning wheel 9 to the second connecting portion 8b. That is, the elevator apparatus according to the first embodiment is an elevator apparatus having a counterweight and having no counterweight.
• the driving device 5 and the tensioning wheel 9 are arranged outside the area of the force cage 2 on the vertical projection plane of the hoistway 1.
• the force 2 is between the upper limit position where the position of the ceiling 2b is higher than the position of the driving device 5 and the lower limit position where the position of the floor 2a is lower than the position of the tensioning wheel 9. It can be moved up and down.
• the lifting mechanism 12 for hanging the force 2 to move up and down in the hoistway 1 has a drive device 5, a main rope 8, and a tension wheel 9.
• the elevating mechanism 12 is disposed outside the area of the car 2 on the vertical projection plane of the hoistway 1.
• the car 4 is provided with a projecting part 4 projecting from the side surface part 2e of the car 2, and the first connecting part 8a and the second connecting part 8b of each main rope 8 are formed on the projecting part 4. Since the main ropes 8 are connected to each other, the positions of the upper rope stopper 10 and the lower rope stopper 11 for connecting the main ropes 8 to the car 2 can be kept within the height range of the car 2. Therefore, the space above and below the car 2 can be reduced by the height dimension of the rope stoppers 10 and 11, and the dimension of the hoistway 1 in the height direction can be reduced.
• the elevating mechanism 12 is disposed outside the area of the force cage 2 in the vertical projection plane of the hoistway 1, when the car 2 is raised and lowered in the hoistway 1, the driving device 5 When part of the car 2 reaches the height at which either the tensioning wheel 9 or the tensioning wheel 9 is installed, the driving device 5 and the tensioning wheel 9 do not interfere with the car 2. Therefore, the range in which the force 2 can ascend and descend in the hoistway 1 can be expanded, and the dimension of the hoistway 1 in the height direction can be further reduced by / J.
• the tension wheel 9 is adapted to apply tension to each main rope 8 by being suspended from each main rope 8, so that tension can be applied to each main rope 8 with a simple configuration. And cost can be reduced.
• each main rope 8 since a high friction material is provided on the outer peripheral portion of each main rope 8, a frictional force between each main rope 8 and the drive sheave 7 can be secured. And the drive sheave 7 can be prevented from slipping.
• FIG. 3 is a front view showing an elevator apparatus according to Embodiment 2 of the present invention.
• FIG. 4 is a side view showing the elevator apparatus of FIG.
• the driving device 5 is fixed to a car guide rail (not shown).
• the tension wheel 9 can be displaced vertically with respect to the force guide rail.
• the tension wheel 9 is suspended by the main ropes 8.
• a first return wheel 21 around which each main rope 8 is wound is provided above the driving device 5 and the tension wheel 9.
• a second return wheel 22 around which each main rope 8 is wound is provided at the upper part in the hoistway 1.
• the first return wheel 21 and the second return wheel 22 are rotatable about a horizontal axis fixed to the car guide rail.
• the driving device 5, the tension wheel 9, the first return wheel 21 and the second return wheel 22 are arranged outside the area of the force 2 on the vertical projection plane of the hoistway 1! Speak.
• a portion between the drive sheave 7 of each main rope 8 and the tensioning wheel 9 is wound around the first return wheel 21.
• the second return wheel 22 is wound around a portion between the drive sheave 7 of each main rope 8 and the first connection portion 8a. That is, each main rope 8 is wound from the first connection portion 8a in the order of the second return wheel 22, the drive sheave 7, the first return wheel 21, and the tension wheel 9, and reaches the second connection portion 8b.
• the wrapping angle of each main rope 8 with respect to the drive sheave 7 is secured to a predetermined size by guiding each main rope 8 from the drive sheave 7 to the first return wheel 21 and the second return wheel 22.
• the lifting mechanism 23 for lifting the force 2 and raising and lowering the inside of the hoistway 1 includes the driving device 5, the main rope 8, the tension wheel 9, the first return wheel 21 and the second return wheel 22. Have.
• the lifting mechanism 23 is arranged outside the area of the force 2 on the vertical projection plane of the hoistway 1.
• Other configurations are the same as those in the first embodiment.
• the drive device 5 is disposed in the lower part of the hoistway 1, maintenance work of the drive device 5 can be facilitated.
• the equipment in the upper part of the hoistway 1 can be easily arranged avoiding the force 2.
• FIG. 5 is a side view showing an elevator apparatus according to Embodiment 3 of the present invention.
• a turning sheave 31 is provided in the hoistway 1 so as to be spaced from the drive sheave 7.
• the turning sheave 31 is disposed above the drive sheave 7. Further, the turning sheave 31 is arranged outside the area of the car 2 on the vertical projection plane of the hoistway 1. Further, the turning sheave 31 is rotatable about a horizontal axis fixed to the car guide rail.
• Each main rope 8 is wound around the first connecting portion 8a in the order of the second return wheel 22, the drive sheave 7, the turning sheave 31, the drive sheave 7, the first return wheel 21, and the tension wheel 9. 2 Leads to connection 8b. That is, each main rope 8 from the second return wheel 22 is wound around the drive sheave 7, wound around the turning sheave 31, wound again around the drive sheave 7, and then to the first return wheel 21. Led.
• the lifting mechanism 32 for lifting the force 2 and moving up and down in the hoistway 1 includes the driving device 5, the main rope 8, the tensioning wheel 9, the first returning wheel 21, the second returning wheel 22, and Has turning sheave 31.
• the lifting mechanism 32 is disposed outside the area of the car 2 on the vertical projection plane of the hoistway 1.
• Other configurations are the same as those in the second embodiment.
• each main rope 8 is wound around the driving sheave 7 and then wound around the turning sheave 31, and is again wound around the driving sheave 7, so that each main rope 8 is driven.
• the winding angle with respect to the sheave 7 can be further increased, and it is possible to further prevent the main sheave 8 from slipping with respect to the drive sheave 7.
• the masses of the tension wheel 9 and the weight can be reduced, and the hoistway 1 can be further reduced in size.
• FIG. 6 is a side view showing an elevator apparatus according to Embodiment 4 of the present invention.
• a driving device 5 and a turning sheave 31 are provided in the upper part of the hoistway 1.
• the turning sheave 31 is disposed below the drive sheave 7. Further, the turning sheave 31 is arranged on the vertical projection plane of the hoistway 1!
• Each main rope 8 is wound from the first connection portion 8a in the order of the drive sheave 7, the turning sheave 31, the drive sheave 7, and the tension wheel 9 to the second connection portion 8b. That is, the first connection 8a
• Each of the main ropes 8 is wound around the driving sheave 7, wound around the turning sheave 31, wound again around the driving sheave 7, and then led to the tension wheel 9.
• the lifting mechanism 41 for lifting the force 2 and raising and lowering the inside of the hoistway 1 has a drive device 5, a main rope 8, a tension wheel 9, and a turning sheave 31.
• the elevating mechanism 41 is arranged outside the area of the force 2 on the vertical projection surface of the hoistway 1.
• Other configurations are the same as those in the first embodiment.
• each main rope 8 is wound around the drive sheave 7 after being wound around the drive sheave 7, and is then wound around the drive sheave 7 again.
• the winding angle with respect to the drive sheave 7 can be further increased, and it is possible to further prevent the slip of each main port group 8 with respect to the drive sheave 7.
• the traction ability for raising and lowering the rail 2 is improved, the masses of the tension wheel 9 and the weight can be reduced, and the hoistway 1 can be reduced.
• FIG. 7 is a side view showing an elevator apparatus according to Embodiment 5 of the present invention.
• a return wheel 51 is provided in the upper part of the hoistway 1.
• the return wheel 51 is rotatable around a horizontal axis fixed to the car guide rail.
• a driving device 5 and a tensioning wheel 9 are provided in the lower part of the hoistway 1.
• the tension wheel 9 is arranged at a distance from the drive sheave 7.
• the tension wheel 9 is disposed above the drive sheave 7.
• the driving device 5 is fixed to the force guide rail.
• the tension wheel 9 can be displaced with respect to the car guide rail.
• Each main rope 8 is wound from the first connecting portion 8a in the order of the return wheel 51, the driving sheave 7, the tensioning wheel 9, and the driving sheave 7, and reaches the second connecting portion 8b. That is, each main rope 8 is wound around the driving sheave 7 from the first connecting portion 8a through the return wheel 51, then wound around the tensioning wheel 9, and again wound around the driving sheave 7. 2 Leads to 8b.
• a biasing device 52 that biases the tensioning wheel 9 in a direction to apply tension to each main rope 8 is provided.
• the biasing device 52 includes a biasing spring 53 that is an elastic body that biases the tension wheel 9 in a direction away from the drive sheave 7.
• the elevating mechanism 54 for elevating the inside of the hoistway 1 by suspending the force 2 is a driving device. 5, main rope 8, tension wheel 9 and urging device 52.
• the lifting mechanism 54 is disposed outside the area of the force cage 2 on the vertical projection plane of the hoistway 1.
• Other configurations are the same as those in the first embodiment.
• the tensioning wheel 9 is urged by the urging device 52 in the direction in which the tension is applied to each main rope 8, and therefore the tensioning wheel 9 is attached in any direction with a predetermined urging force. It can be supported. From this, it is possible to eliminate a return wheel or the like for allowing the tension wheel 9 to be suspended by each main rope 8, and also to provide a weight for securing the tension applied to each main rope 8 to a predetermined magnitude. It can be lost. Therefore, the number of parts can be reduced, the cost can be reduced, and the space of the hoistway 1 can be saved.
• Each main rope 8 is hooked around the driving sheave 7 from the first connecting portion 8a via the return wheel 51, and then wound around the tensioning wheel 9 and again around the driving sheave 7. Since the second connecting portion 8b is reached, the main ropes 8 can be provided in the hoistway 1 so that the bending directions of the main ropes 8 are always the same. That is, the occurrence of reverse bending of each main rope 8 can be prevented. From this, the life of each main rope 8 can be extended.
• each main rope 8 is wound around the driving sheave 7 and then wound around the tensioning wheel 9, it is wound around the driving sheave 7 again.
• the winding angle of the main rope 8 can be increased, and slippage of the main rope 8 with respect to the drive sheave 7 can be prevented.
• the driving device 5 and the tensioning wheel 9 are arranged in the lower part in the hoistway 1, and the return wheel 51 is arranged in the upper part in the hoistway 1.
• the return wheel 51 may be arranged at the lower part of the vehicle, and the driving device 5 and the tension wheel 9 may be arranged at the upper part of the hoistway 1.
• the tension wheel 9 is arranged below the drive sheave 7.
• Each main rope 8 is wound around the first connecting portion 8a in the order of the driving sheave 7, the tensioning wheel 9, the driving sheave 7, and the return wheel 51 in this order, and reaches the second connecting portion 8b. Is provided.
• FIG. 8 is a front view showing an elevator apparatus according to Embodiment 6 of the present invention.
• FIG. 9 is a side view showing the elevator apparatus of FIG.
• basket 2 has each side A plurality of (in this example, two) projecting portions 61 and 62 projecting from the surface portion 2e to the outside of the car 2 are provided.
• the protrusions 61 and 62 extend horizontally from the car 2 in a direction away from each other. Further, the protrusions 61 and 62 are arranged symmetrically with respect to the center of gravity of the force 2 on the vertical projection plane of the hoistway 1.
• each lifting mechanism 63, 64 is provided, respectively.
• the structure of each lifting mechanism 63, 64 is the same as that of the lifting mechanism 41 in the fourth embodiment.
• the elevating mechanisms 63, 64 are arranged outside the area of the force 2 on the vertical projection plane of the hoistway 1.
• the force 2 is disposed between the elevating mechanisms 63 and 64.
• the protrusion 61 includes an upper rope stop 65 for connecting each main rope 8 to the protrusion 61 above the protrusion 61, and each main rope 8 below the protrusion 61.
• a lower rope stop 66 is provided for connection to the cable.
• the upper portion 67 is connected to the protrusion 62 to connect each main port 8 to the protrusion 62 above the protrusion 62, and each main port 8 is protruded below the protrusion 62.
• a lower leash 68 for connecting to the part 62 is provided.
• first connection portion 8a of each main rope 8 is connected to the upper rope stop portion 65, and the second connection portion 8b is connected to the lower rope stop portion 66. Further, in the other lifting mechanism 64, the first connection portion 8a of each main rope 8 is connected to the upper rope stop portion 67, and the second connection portion 8b is connected to the lower rope stop portion 68.
• the force 2 is suspended in the hoistway 1 by the main ropes 8 in the elevating mechanisms 63 and 64, respectively.
• the force 2 is raised and lowered by the driving force of each driving device 5 in the lifting mechanisms 63 and 64.
• Each drive sheave 7 is rotated in synchronization with each other.
• Other configurations are the same as those in the first embodiment.
• the drive sheaves 7 are rotated in synchronization with each other by the drive of the drive devices 5.
• the main ropes 8 in the elevating mechanisms 63 and 64 are circulated and moved in synchronization with each other.
• the force 2 is moved up and down in the hoistway 1.
• the main ropes 8 are circulated and moved in synchronization with each other, the force 2 is raised and lowered stably.
• a plurality of projecting portions 61 projecting from the side surface portion 2e of the force cage 2, 62 is provided in the car 2 and a plurality of elevating mechanisms 63, 64 corresponding to the projecting portions 61, 62 are provided in the hoistway 1, and the first and Since the second connecting portions 8a and 8b are connected to the protruding portion 61, and the first and second connecting portions 8a and 8b of each main rope 8 in the lifting mechanism 64 are connected to the protruding portion 62, the car 2 It can be hung and can be lifted and lowered stably. Further, since the common car 2 is moved up and down by the driving force of the plurality of driving devices 5, each driving device 5 can be reduced in size. Thereby, the installation space of each driving device 5 can be reduced, and the entire elevator device can be reduced.
• the configurations of the elevating mechanisms 63 and 64 that suspend the force 2 so as to be elevable in the hoistway 1 are the same as the configuration of the elevating mechanism 41 in the fourth embodiment.
• the structure of the lifting mechanism 12 in the first embodiment, the lifting mechanism 23 in the second embodiment, the lifting mechanism 32 in the third embodiment, or the lifting mechanism 54 in the fifth embodiment may be configured as each lifting mechanism. Good. Even in this way, the force 2 can be moved up and down stably, and the entire elevator apparatus can be reduced.
• the high friction material may be provided on the outer peripheral portion of the 1S drive sheave 7 in which the high friction material is provided on the outer peripheral portion of the main rope 8. Further, a high friction material may be provided on the outer periphery of each of the main rope 8 and the drive sheave. Even in this case, the frictional force between the main rope 8 and the drive sheave 7 can be increased, and slippage of the main rope against the drive sheave 7 can be prevented. In addition, the frictional force between the main rope 8 and the drive sheave 7 is increased to improve the traction ability, so that the tension applied to the main rope 8 can be reduced, and the tension wheel 9 and the biasing force can be reduced. The small size of the device 52 can also be achieved.

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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)

Priority Applications (4)

Applications Claiming Priority (1)

Publications (1)

Family

ID=36202742

Family Applications (1)

Country Status (4)

Cited By (2)

Families Citing this family (3)

Citations (5)

Family Cites Families (6)

• 2004
  • 2004-10-20 CN CNB2004800423833A patent/CN100534887C/zh not_active Expired - Fee Related
  • 2004-10-20 EP EP04792660A patent/EP1803676A4/de not_active Withdrawn
  • 2004-10-20 WO PCT/JP2004/015494 patent/WO2006043317A1/ja active Application Filing
  • 2004-10-20 JP JP2006542134A patent/JP4658067B2/ja not_active Expired - Fee Related

Patent Citations (5)

Non-Patent Citations (1)

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